专利摘要:
1. DEVICE FOR WORKING LIFE for the latter, a carriage with an instrumental caliper with its translational movement of a kinema and the coupling of which with a mechanism FOR rotation of the part involves a gear transmission, and The tool is installed at an angle to the direction of movement of the carriage, from: I deactivate the fact that, in order to increase labor productivity, a freewheel with external and internal coupling halves, external of which are external, is introduced between the carriage and the mechanism for rotating the part. equipped with a mechanism for rotating the part, and a one-way cam clutch mounted to work in antiphase with a freewheel clutch, one of the coupling halves of the cam clutch being connected to the internal coupling half freewheel travel-stand, and the other and biased by a gear associated with a drive for displacing parts. 2. The device according to claim 1, characterized in that the clamping elements are mounted eccentrically relative to the axis of the mechanism of rotation of the part.
公开号:SU1109043A3
申请号:SU823449155
申请日:1982-06-08
公开日:1984-08-15
发明作者:Ковари Пал;Галамбош Тибор;Богиших Ференц;Терингер Имре;Ердегх Антал;Пордан Михай
申请人:Мадьяр Вагон-Еш Гепдьяр (Инопредприятие);
IPC主号:
专利说明:

The invention relates to a machine tool structure and can be used to process and update the working surface of the distribution cams, in particular the vehicle brake clamps, with the involute profile or Archimedes spirals. Known devices of this designation are known, including a spindle with; a mechanism for rotating the part, carrying clamping elements for the latter, a carriage with a tool holder with a drive for its translational movement, the kinematic connection of which includes a gear mechanism, the tool axis being installed at an angle to the direction of movement of the carriage II. Known devices have severe disadvantages; the copier and the actuator are in the same line, so the maximum allowable load on the copier is limited; making a copier profile is expensive and, in addition, only limited manufacturing accuracy can be obtained; to handle each separate cam, it is necessary in each case to have a separate cam. In addition, the known devices have limited technological capabilities. They can not handle the brake keys of an arbitrary profile. . The purpose of the invention is to expand technological capabilities and increase productivity. To this end, in a device for treating the working surface of distribution cams, for example, brakes (car locks, face milling or grinding wheel, whose working plane is perpendicular to its axis of rotation, including a spindle with a mechanism for rotating a part carrying clamping elements for the latter, a carriage with a tool carrier with a drive of its translational movement, the kinematic connection of which with the mechanism for rotating the part includes a gear transmission, the tool axis being set at an angle to the direction of movement of the carriage; a freewheel with external and internal coupling halves, external of which is connected with the mechanism for rotation, is introduced into the kinematic connection between the carriage and the mechanism for rotating the part. parts, and one-way cam clutch, installed with the ability to work in antiphase with a freewheel clutch, with one of the coupling halves of the cam clutch associated with the internal coupling half of the free clutch stroke, and the other is spring-loaded and, through gearing, is connected with the drive of translational movement of the part. The clamping elements are mounted eccentrically with respect to the axis of the mechanism of rotation of the part. FIG. the profile of the brake latch in the form of an involute is presented; in fig. 2 is a kinematic diagram of the proposed device; in FIG. 3, view A in FIG. 2; in FIG. 4, B in FIG. 2; in fig. 5 shows the node T in FIG. 2; in fig. 6 - the node in FIG. 2; in fig. 7 - eccentric arrangement of clamping elements. The proposed device treats the surfaces 1 and 2 of the parts 3 of the brake latch. On the housing 4 of the device there is a guide 5 for the longitudinal carriage of the slide 6 along which it moves. The direction of movement of the slide carriage 6 along the direction of the axis 5 perpendicular to the axis of rotation of the part. On the longitudinal carriage caliper 6, the spindle of the device 7 is mounted obliquely in a plane perpendicular to the rewind plane of the longitudinal carriage of the caliper, on which the device spindle 8 carries the cutting tool head 9. Angle A between the spindle B and the plane of the guide 5 caliper carriage adjustable. The spindle 8 is connected to the engine 10 of the main drive pulleys Ii and 12 n drive element 13, for example V-belt. On the motor shaft 14 of the auxiliary drive, a gear wheel 15 is fastened, which engages with the gear wheel 16, located on the control shaft 17. One of the ends of the control shaft 17 adjoins the support carriage 6 with the help of elements such as a gear wheel 18 and a gear rail 19 which transform the rotational motion into linear. The other end of the shaft 17 is connected via gear 20,
wheels 21 and 22 with an intermediate shaft 23. The intermediate shaft 23 is connected by means of a one-way cam clutch 24 loaded with a spring 25 with a spindle 26 of the part. The first 5 half of the one-way cam clutch 24 is connected to the intermediate shaft 23 by means of a prismatic slide key 27, which is axially held by a spring 0 25. In the first half of the one-way cam clutch 24 there is at least one cam. there are as many cams as you need $ 1 to work the work planes on part 3, or the number of cams that is a multiple of this number of surfaces to be machined. The other half of the one-way cam clutch 24 is mounted on the spindle 26 of the part. The number of grooves made therein is consistent with the number of working surfaces of the part 3 to be machined, or it is a multiple of it. A freewheel is attached to the spindle 26 25 with its inner part 28. Its outer part is fixed on the rod 29 of the spindle part. One-way cam clutch 24 and a freewheel clutch 28, working in antiphase. ,
Between the clamping elements 30 of the spindle end 26 of the part and the stop tip. 31, the part 3 is clamped. In order to orient and transfer the rotation 35, the part spindle 26 between it and part 3 has a leash 32 entering the hole in part 3.
In the event that the working surfaces I and 2 are in the form of an involute, 40 the device according to the invention works as follows.
The part 3 is clamped between the element 30 and the supporting tip 31 and with the help of the driver 32 orients in the 45 hole of the part 3. The gears 21 and 22 are mounted with the number of teeth depending on the parameters of the involute.
Between the spindle 8 and the longitudinal carriage of the caliper 6, there is a set of 50 fr CPs. The distance K between the end of the cutting tool head 9 and the axis of the part 3 is set depending on the parameters of the working surfaces 1 and 2, which are js surfaces with an involute profile. In FIG. 4 shows the source. position when the end plane of the cutting tool head 9
is in the starting position. The rotation of the spindle B begins. When; The engine 14 of the auxiliary drive mechanism rotates the longitudinal carriage 6, driven through the gear wheel 18 and the rack 19, approaches part 3 by the magnitude of the working stroke. At the same time, the spindle 26 of the part and at the same time the part 3 is driven into rotation through gear 20, gears 21 and 22, one-way cam clutch 24 loaded with spring 25, and one-way clutch 28.
Using the described device, the work surface 1 is processed to obtain an involute profile. The tool head moves until the end of machining, until the end of the cutting head 9 comes to point A. The electric motor of the 14 auxiliary drive mechanism now begins to rotate in the opposite direction. The longitudinal slide carriage 6 together with the cutting tool head 9 returns to its original position. During the rapid return stroke of the carriage, the part 3 does not rotate, since the freewheel 28 is closed and the cam clutch 24. is disengaged. By the beginning of the rapid return stroke of the longitudinal slide carriage 6, the cam of the clutch 24 extends from the groove (Fig. 5) and enters another groove located at a distance of 80 from the first groove, with the end of the cutting head 9 mounted on the longitudinal slide carriage 6 returning to the starting position. After that, the treatment of the working surface 2 is performed in the manner already described. The processing of both working surfaces I and 2 of the entire part in a semi-automatic cycle ends with the re-return of the end face of the cutting tool head 9 to the initial position. The detail is then removed.
In a preferred embodiment of the device. According to the invention of FIG. 7) the geometrical axis of the element 30 of the top 31 and the axis of the mechanism of rotation of the part 3 are located with an eccentricity e of a certain or adjustable value.
In another embodiment of the invention, the device comprises another spindle for the part, which by means of a drive mechanism
without slippage associated with the spindle 26. In this case, the machining of two parts can be carried out simultaneously with the selected diameter of the cutting tool head 9 and the axial distance between the spindles.
In order to increase productivity, the number of spindles 26 and the number of cutting tool heads .9 can be increased. At the same time, the device is almost not at all complicated, since the kinematic chain already described, the connecting part 3 and the longitudinal carriage of the support 6, can actuate any
I09043
; | number of spindles 26 and cutting tool heads 9 contained in the device.
Thus, the proposed 5 device can have either one tool head 9 and one spindle 26, or one or more cutting tool heads and several spindles for parts connected without slipping with the spindle 26.
In addition, the device allows to increase productivity when processing the working surfaces of the distribution cams, for example, vehicle brake clamps.
Buds
fi8.7
-29

31
权利要求:
Claims (2)
[1]
, 1. DEVICE FOR PROCESSING THE WORKING SURFACE OF THE DISTRIBUTION CAMS, FOR EXAMPLE OF BRAKE LOCKERS OF CARS, WITH THE EVOLVENT PROFILE OR ARCHIMEDE SPIRAL with an end mill or a grinding wheel, the working plane of which has a rotary axis with a clamp a carriage with a tool support with a drive of its translational movement, the kinematic connection of which with the mechanism for rotating the part includes a gear transmission, with The tool axis is installed at an angle to the direction of movement of the carriages, characterized in that, in order to increase labor productivity, η the kinematic connection between the carriage and the mechanism for rotating the part, a freewheel with external and internal half couplings is introduced, the external of which is connected to the rotation mechanism parts, and a one-way cam clutch installed with the ability to work in antiphase with a freewheel, and one of the cam clutch coupling half is connected to the inner coupling coupling half about the stroke, and the other is spring-loaded and, through a gear transmission, is connected with the drive of translational movement of the part.
[2]
2. The device according to p. ^ Characterized in that the clamping elements are mounted eccentrically relative to the axis of the rotation mechanism of the part.
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同族专利:
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引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
CN102423868A|2011-12-13|2012-04-25|重庆工具厂有限责任公司|Involute cam processing device and processing method thereof|DE90704C|
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JPS5662704A|1979-10-30|1981-05-28|Toshiba Corp|Chuck for eccentrical machining|JP2003245855A|2001-12-17|2003-09-02|Seiko Instruments Inc|Center support grinding method, center support grinding machine, and centering method for machine|
CN105033729A|2015-08-12|2015-11-11|重庆市合川区均恒金属加工厂|Linkage transmission mechanism for gear milling machine|
NL2018436B1|2017-02-28|2018-09-19|Lely Patent Nv|Bale forming apparatus and method with a free-wheel clutch|
法律状态:
优先权:
申请号 | 申请日 | 专利标题
HU811962A|HU185435B|1981-07-06|1981-07-06|Device for oroginal and renewing machining the working surface of steering cams particularly brake spanners|
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