CN111745373A

CN111745373A - Piston assembly table of rear parking caliper

Info

Publication number: CN111745373A
Application number: CN202010756958.9A
Authority: CN
Inventors: 秦亮; 唐麒
Original assignee: Taizhou Yibichi Auto Parts Co ltd
Current assignee: Taizhou Yibichi Auto Parts Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2020-10-09

Abstract

The invention provides a piston assembly table of a rear parking caliper, and belongs to the technical field of rear parking caliper assembly tools. It has solved the unable automatic assembly's of piston on the parking calliper after current problem. The caliper piston assembly table comprises a fixing frame and a driving device which is connected to the fixing frame and adjustable in height, a connecting rod is connected to the driving device, the driving device can drive the connecting rod to ascend and descend and rotate, a spring and a sliding block are sequentially sleeved on the connecting rod, the sliding block is circumferentially fixed with the connecting rod, a limiting part is further arranged at the end part of the connecting rod, one end of the spring is pressed against one end face of the sliding block, the sliding block is abutted against the limiting part, two convex parts which are symmetrically distributed in the center are further arranged on the other end face of the sliding block, and a positioning device used for fixing a caliper body is further. The automatic piston screwing is realized by the caliper piston assembling table, and the assembling efficiency of the piston screwing into the caliper body is greatly improved.

Description

Piston assembly table of rear parking caliper

Technical Field

The invention belongs to the technical field of rear parking caliper assembling tools, relates to an assembling table, and particularly relates to a rear parking caliper piston assembling table.

Background

The rear parking caliper mainly comprises four parts, namely a caliper body, a piston, a screw rod and a nut. Usually all have the cylinder hole on the calliper body, the mounting groove bottom all has the mounting hole, and the screw rod is located the mounting groove and one end stretches out outside the calliper body from the mounting hole and is used for connecting EPB motor or acting as go-between rocking arm and provide its circumferential direction's power. The piston is generally in a cylindrical structure with an opening at one end, the nut is arranged in an inner cavity of the piston to be linked with the piston, then the piston with the nut is arranged in the mounting groove, and the nut is aligned with the screw rod to screw the piston into the mounting groove through the thread matching of the piston and the mounting groove. Then the brake pad is abutted against the piston, when the rear parking caliper works, the EPB motor or the pull line rocker arm generates torque to enable the screw and the nut to rotate, and therefore the piston is compressed to drive the brake pad to work. The top of a common piston can be provided with two mutually symmetrical grooves in production, the grooves have the purpose that circumferential linkage is realized between a nut and the piston through clamping, so that clamping points are always arranged in a piston inner cavity, but the clamping points in the piston are not aligned with the nut easily during assembly, so that the positions of the clamping points in the piston are marked through the grooves in the top of the piston, and the nut is convenient to assemble. The groove also has the function of being used for matching and fixing with the brake block.

The existing piston is installed in the caliper body through manual clamping, namely when a nut and the piston are assembled well and a screw rod is also installed in an installation groove in the caliper body, the piston with the nut needs to be installed in the installation groove at this time. The piston can be installed into the caliper body only by aligning the threaded hole of the nut with the screw rod and then rotating the piston in the circumferential direction, the nut and the screw rod cannot be screwed up due to the fact that attention is needed to be paid to the screwing-in process, and the piston can be installed in place and can be easily rotated between the nut and the screw rod. Such process is all operated by manual work, and is comparatively laborious, and production efficiency is lower. Therefore, the problem of solving the above existing problem is that the matters to be handled are not buffered at present.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a piston assembly table of a rear parking caliper. It is that it solves the unable automatic assembly's of piston on the parking calliper after current technical problem.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a back parking calliper piston assembly bench, includes the mount and connects on the mount and height-adjustable's drive arrangement, the last connecting rod that is connected with of drive arrangement, and drive arrangement can drive the connecting rod and go up and down and rotate, its characterized in that, the cover is equipped with spring and slider in proper order on the connecting rod, and slider and connecting rod circumference are fixed, the connecting rod tip still is equipped with the locating part, spring one end roof pressure makes the slider support and leans on the locating part on a slider terminal surface, still be equipped with two convex parts that are central symmetric distribution on another terminal surface of slider, the slider below still is equipped with the positioner who is used for the fixed caliper body.

The height of the drive means is adjustable, meaning that the initial height of the connecting rod is also adjustable, so that the arrangement is convenient to accommodate pistons of various sizes. The connecting rod is circumferentially fixed with a sliding block capable of sliding relative to the connecting rod, the connecting rod is further provided with a spring, one end of the spring abuts against the sliding block and abuts against the sliding block to press the sliding block at the end part of the connecting rod, and the sliding block is further provided with two mutually symmetrical convex parts used for being matched with the groove at the top of the piston. This assembly bench has utilized the recess of piston top from the area, sets up convex part and recess cooperation on the slider, as long as the slider realizes simultaneously under the drive of connecting rod that the action that rotates and move down can drive the piston and rotate to twist calliper internal, and such design has got rid of the manual work and has twisted the internal operation of calliper with the piston, has realized automatic assembly piston, has improved assembly efficiency greatly. And can realize matching with the piston of various sizes through changing the slider, the suitability is comparatively extensive. The cover is equipped with the spring on the connecting rod, the slider is supported and is pressed at the connecting rod tip under spring force effect, the benefit that sets up like this is because there is the motion of vertical direction in the piston screw thread twists calliper body, the setting of spring makes the slider support and obtains the buffering when leaning on the piston, can not lead to damaging the piston because direct hard contact, and when putting into between calliper body and the slider with the piston, because the slider can overcome spring force and slide up, we can be manual stir the slider up and come to adjust the piston position and need not the lift connecting rod to drive the slider lifting regulation, the fine setting is realized to the characteristic of direct spring that utilizes, the clamping efficiency of piston has been improved. Because the number of turns of the threaded connection between the piston and the caliper body is fixed and the piston does not need to be matched very accurately when being assembled, the piston can be automatically clamped only by setting the number of turns of the rotation of the connecting rod and the downward moving distance of the connecting rod in advance, and the assembly efficiency is greatly improved.

The positioning device is used for fixing the caliper body, fixing the caliper body on the positioning device, adjusting the position of the caliper body to be aligned with the sliding block, and producing the same product by one-time adjustment, so that the assembly efficiency is further improved.

In the above-mentioned piston assembly table for rear parking calipers, the end of the connecting rod is further provided with a limiting ring, the slider is provided with a guide head, one end of the spring is sleeved outside the guide head, the end of the spring is pressed against one side surface of the slider, and the other end of the spring is pressed against the limiting ring.

The spring is compressed tightly between spacing ring and slider, and a spring pot head is established and can be made more even effect of spring force on the slider outside the direction head, prevents that the unilateral atress from appearing and probably leading to the screw-thread fit deviation to appear and make to twist and move unsmoothly or damage the piston in rotatory, sets up the accuracy nature that makes the piston twist like this and obtains promoting.

In the above-mentioned piston assembly table for rear parking calipers, the end portion of the connecting rod is square, a central hole which penetrates through the sliding block and is square is formed in the central position of the guide head, and the sliding block extends into the central hole through the end portion of the connecting rod and is circumferentially fixed with the connecting rod.

The cross-section of centre bore is square its aperture ratio connecting rod's tip slightly bigger, sets up like this and can drive the slider to have enough to meet the need together when the connecting rod rotates, and the slider cover is established on the connecting rod and is leaned on spacingly at connecting rod tip and locating part with its roof pressure through the spring, but slider itself can be relative connecting rod gliding, design simple structure like this, and the dismouting is comparatively convenient.

The spacing ring also has the last drill way that is square centre bore and centre bore can support with being columniform connecting rod and keep out restriction endwise slip, and the spring setting is between slider and spacing ring and both support respectively under the effect of spring force and lean on link tip and connecting rod, and the benefit that sets up like this is that can be comparatively convenient dismantle the maintenance to it if the assembly bench breaks down.

In foretell back parking calliper piston assembly platform, it still has seted up the annular still to lie in a centre bore side opening department on the slider, the locating part passes through the bolt fastening at the tip of connecting rod, just the locating part lies in the annular and supports by axial spacing slider rather than the tank bottom.

The limiting piece is positioned in the ring groove and forms a support with the groove bottom to limit the sliding block to fall out of the connecting rod, and the limiting piece is positioned in the ring groove and does not exceed the ring groove, namely the lower end face of the limiting piece is flush with the groove opening of the ring groove. The hidden design enables the convex part on the sliding block to be completely exposed below the connecting rod and to be better matched with the groove at the upper end of the piston, and the assembling efficiency is further improved. The convex part and the piston can overcome the spring force and upwards displace for a certain distance after the convex part and the piston are contacted with each other, so that the piston and the convex part are fully abutted together, the displaceable distance of the sliding block can be effectively increased by the design of the hidden limiting part, the limiting part is prevented from being rigidly contacted with the top of the piston, and the safety is higher.

The locating part passes through bolted connection on the lower terminal surface of connecting rod, and the stopper is changed to convenient dismouting of design like this, and quick replacement slider can adapt to the assembly of the piston and the caliper body of various sizes or batch number, has further improved assembly efficiency.

In the above-mentioned piston assembly table for rear parking calipers, the positioning device includes a small support plate and two sets of positioning columns, a plurality of chutes with equal intervals are formed in the small support plate, and the two positioning columns are clamped in the chutes and can adjust the distance between the two positioning columns through relative sliding.

The two positioning columns can be close to or far away from each other through the same clamped sliding groove and in the sliding groove to adjust the distance between the two positioning columns, so that the size of the caliper body is adapted, and the adaptability of the caliper body is improved. And two reference columns also can realize the front and back position control between reference column and the slider through switching different spouts simultaneously, and the regulation of multi-direction multi-angle can adapt to the piston assembly of the caliper body of different sizes, and it is comparatively convenient to use moreover.

In foretell back parking calliper piston assembly platform, the reference column includes base and cylinder, base central point puts and has seted up the locating hole, the both ends of cylinder are equipped with connector one and connector two respectively, connector two threaded connection is in the locating hole, connector one be used for with the mounting hole cooperation on the calliper body.

The clamp body is provided with a left hole position and a right hole position, the positions of the two positioning columns are adjusted to enable the positioning columns to be opposite to the first connecting heads and then put down the clamp body, the first connecting heads on the positioning columns can stretch into the hole positions to position the clamp body, the assembling table can adapt to clamp bodies with different sizes by changing cylinders with different sizes, the cylinders are connected with the base in a threaded mode and are convenient to disassemble or assemble, actual operation is greatly facilitated, and assembling efficiency is further improved.

In foretell back parking calliper piston assembly platform, drive arrangement still includes cylinder and motor and both link firmly, it is provided with the integral key shaft to slide in the cylinder, integral key shaft one end is fixed with the connecting rod, the integral key shaft other end passes through the hold-in range and is connected and the linkage with the motor.

The spline shaft is arranged in the cylinder in a penetrating mode, the upper end and the lower end of the spline shaft are exposed outside the cylinder respectively, the lower end of the spline shaft is connected with the connecting rod, the spline shaft and the connecting rod can be linked, the spline shaft and the output shaft of the motor are arranged in parallel, the spline shaft and the output shaft of the motor are synchronously linked through the sleeve, and the connecting rod can rotate together with the spline shaft in a linked mode. The upper and lower displacement of integral key shaft then drives through the cylinder, and integral key shaft and the interior piston connection of cylinder drive the integral key shaft upper and lower displacement through the slip of the interior piston of cylinder, and the slip and the rotation of integral key shaft are controlled through the linkage of motor and cylinder to this design, and simple structure is comparatively practical, is fit for production and popularization.

In foretell back parking calliper piston assembly platform, the mount is including being hollow tubulose stand and bearing arm, bearing arm both ends are equipped with suit portion one and suit portion two respectively, suit portion one cover is established outside the stand and is had the elasticity bolt on it, suit portion two covers is established outside the cylinder and also has the elasticity bolt on it.

The function of the elastic bolt is to adjust the clamping force of the first sleeving part and the second sleeving part, when the clamping force of the elastic bolt is loosened, the bearing arm can slide on the upright post to adjust the position, and the distance between the sliding block and the positioning column can be adjusted conveniently. The position of the cylinder can also be adjusted by adjusting the elastic bolt on the second sleeving part. Multiple regulation enables this assembly bench convenient more convenient operation.

Compared with the prior art, the product has the advantages that: this assembly bench has utilized the recess of piston top from the area, and the convex part on the design slider cooperates with the recess at piston top, makes the slider drive the piston rotation under the drive of cylinder and motor again and twists the calliper internal, and it is internal that the design has realized automatic twisting piston like this, has improved the internal assembly efficiency of piston twist calliper greatly.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view of a portion of the present invention;

FIG. 3 is a partial structural detail view of the present invention;

FIG. 4 is a detail view of the slider of the present invention;

FIG. 5 is a bottom view of the slider of the present invention;

FIG. 6 is a half sectional view of the slider of the present invention;

FIG. 7 is a schematic view of a positioning post of the present invention;

FIG. 8 is a detail view of the column of the present invention;

figure 9 is a semi-sectional schematic view of the positioning post of the present invention.

In the figure, 1, a fixed frame; 11. a column; 12. a load-bearing arm; 121. a first sleeving part; 122. a second sheathing part; 2. a drive device; 21. a cylinder; 22. a motor; 23. a spline shaft; 24. a connecting rod; 3. a spring; 4. a slider; 41. a convex portion; 42. a guide head; 43. a central bore; 44. a ring groove; 5. a limiting member; 6. a positioning device; 61. a small pallet; 611. a chute; 62. a positioning column; 621. a base; 6211. positioning holes; 622. a cylinder; 6221. a first connecting head; 6222. a second connector; 7. a limit ring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1-6, the assembly table for the piston of the rear parking caliper comprises an operation panel and a fixing frame 1 which is fixed on the operation panel and has adjustable height, the fixing frame 1 comprises a hollow tubular upright post 11 and a bearing arm 12, two ends of the bearing arm 12 are respectively provided with a first sleeving part 121 and a second sleeving part 122, the first sleeving part 121 comprises a first left clamping block and a first right clamping block, a cavity is arranged between the first left clamping block and the first right clamping block, the upright post 11 extends into the cavity and is circumferentially surrounded and clamped by the first left clamping block and the first right clamping block, and the end parts of the left clamping block I and the right clamping block I are also provided with an elastic bolt which can control the tightness degree of the left clamping block I and the right clamping block I, thereby can strengthen the clamp force that left fixture block one and right fixture block one through screwing up the elasticity bolt and make bearing arm 12 can fix on stand 11, loosen the elasticity bolt to the certain degree and can make bearing arm 12 highly adjust like this and set up so that adjust comparatively convenient and practical. The second sleeving part 122 comprises a second left clamping block and a second right clamping block, the structure of the second sleeving part is basically similar to that of the first sleeving part 121, the cylinder 21 is clamped between the second left clamping block and the second right clamping block, the motor 22 is fixed on the cylinder 21, meanwhile, the second left clamping block and the second right clamping block are also provided with elastic nuts to adjust clamping force between the second left clamping block and the second right clamping block, and the double adjusting structure enables the assembling table to be capable of adjusting height at will, large in adjusting range and wide in applicability.

A spline shaft 23 penetrates through the cylinder 21, the upper end and the lower end of the spline shaft 23 are respectively exposed outside the cylinder 21, the lower end of the spline shaft 23 is connected with a connecting rod 24 and can be linked with the spline shaft 23, the upper end of the spline shaft 23 is parallel to an output shaft of a motor 22 and can be linked with the motor 22 through a synchronous belt, and the connecting rod 24 can be linked with the spline shaft 23 to rotate together. The spline shaft 23 is driven by the cylinder 21 to move up and down, the spline shaft 23 is connected with the piston in the cylinder 21, and the spline shaft 23 is driven by the sliding of the piston in the cylinder 21 to move up and down. The tapping chuck is further assembled between the spline shaft 23 and the connecting rod 24, the connecting rod 24 is provided with a square connecting end, the connecting end is connected with a sliding block 4 with a square central hole 43, the sliding block 4 is circumferentially fixed on the connecting rod 24 through the central hole 43 and the connecting end in a matched mode, and the sliding block 4 can slide up and down relative to the connecting end. The slider 4 comprises a guide head 42 and a body part which are integrally formed, the connecting end is sleeved with a spring 3, one end of the spring 3 is sleeved outside the guide head 42, the end part of the spring abuts against the end surface of the body part, and the lower end surface of the body part is provided with two convex parts 41 which are distributed in a central symmetry manner along the circumferential direction. The connecting end is also provided with a limiting ring 7 which can form a block with the connecting rod 24, and the upper end of the spring 3 is propped against the limiting ring 7. The spacing ring 7 also has and is square centre bore 43 and the last drill way of centre bore 43 can support with being columniform connecting rod 24 and restrict the axial slip, and spring 3 sets up between slider 4 and spacing ring 7 and both support respectively under the effect of spring 3 elasticity and lean on link end portion and connecting rod 24, and the benefit that sets up like this is that can be comparatively convenient dismantle the maintenance to it if the assembly bench breaks down. Be fixed with spacing piece 5 on the link terminal surface, the bolt hole has been seted up on the spacing piece 5, also have the hole site that corresponds with the bolt hole on the link terminal surface, spacing piece 5 passes through the bolt fastening on the link terminal surface, the diameter of spacing piece 5 will be greater than the diameter of link, so can form with slider 4 and keep out and play a spacing effect, design like this can conveniently dismantle slider 4 simultaneously, convex part 41 that quick replacement slider 4 can make on it can adapt to the recess on the piston of various sizes, make its adaptability obtain improving. Meanwhile, the sliding block 4 is further provided with a ring groove 44 with a diameter slightly larger than that of the limiting piece 5, and the limiting piece 5 extends into the ring groove 44 to abut against the sliding block 4. The limiting piece 5 is located in the ring groove 44 of the sliding block 4 and forms a stop with an upper hole opening to prevent the sliding block 4 from falling out of the connecting rod 24, the limiting piece 5 is hidden in the ring groove 44, so that the convex portion 41 on the sliding block 4 is completely exposed below the connecting rod 24 and is better matched with the groove at the upper end of the piston, meanwhile, more yielding space is provided for the convex portion 41, namely when the convex portion 41 is abutted to the groove of the piston, the connecting rod 24 is further moved downwards to further compress the spring 3 in order to enable the convex portion 41 to be pressed against the groove of the piston, in this way, the limiting piece 5 located at the lower end of the connecting end is likely to be in rigid contact with the piston, the piston is likely to be damaged, the stroke of the sliding block 4 can be increased by hiding the limiting piece.

The working principle of the assembly table is that the spline shaft 23 on the air cylinder 21 drives the connecting rod 24 to move up and down, the end part of the connecting rod 24 is limited by the sliding block 4, meanwhile, the spline shaft 23 is driven by the motor 22 to rotate circumferentially through the meshing of the first transmission gear and the second transmission gear, and the sliding block 4 is enabled to form a piston screwing action through the arrangement. This assembly bench has utilized the design of the recess of piston top from the area, only need manually place the piston in callipers body groove mouth department, the nut in the piston aligns with the internal screw rod of calliper, slide block 4 descends through cylinder 21 again, align and continue descending the recess of its upper ledge 41 and piston top and use convex part 41 on slide block 4 and the cell wall of recess to form and keep out, just can drive the piston when slide block 4 rotates and rotate together through twisting calliper internal, the design has realized automatic twisting piston like this, assembly efficiency is improved. And only need change slider 4 can realize matcing with the piston of various size of a dimension, it is comparatively convenient only to dismantle locating part 5 and change slider 4. The arrangement of the spring 3 enables the sliding block 4 to be soft when being abutted against the piston through the elastic force of the spring 3, and the piston cannot be damaged due to rigid contact, or the product yield is not influenced due to the fact that the screwing position of the piston is not right due to positioning errors. And when the piston is placed between the caliper body and the sliding block 4, the sliding block 4 can overcome the elasticity of the spring 3 to move up and down, and when the initial deviation of the piston can be directly adjusted without adjusting the lifting sliding block 4, the assembly efficiency is further improved. The effect of tapping chuck can play the effect of protection piston, can also read the moment of twist when the tapping chuck acquireed and twist the piston through the control computer, can play the effect of protection piston and the effect of the whole drive arrangement 2 of protection. The sliding block 4 is mainly prevented from being excessively rotated by the motor 22, so that the sliding block and the screw thread are excessively matched, and the inner piston cannot move after the calipers are assembled. Generally, the assembly table is used for automatically screwing the piston by setting the number of turns of the motor 22 driving the sliding block 4 to rotate on a control computer, but in order to prevent setting deviation, after the piston is completely screwed in, the tapping chuck can cut off circumferential transmission between the cylinder 21 and the connecting rod 24, so that the cylinder 21 and the motor 22 are in an idle state and cannot continuously drive the connecting rod 24 to circumferentially screw the piston, double insurance is set, and the assembly stability of the assembly table is greatly improved.

As shown in fig. 2, 7, 8 and 9, a positioning device 6 for fixing the caliper body is further provided on the operation panel below the slider 4. The positioning device 6 is used for fixing the caliper body, fixing the caliper body on the positioning device 6, adjusting the position of the caliper body to be aligned with the sliding block 4, and producing the same product by one-time adjustment, so that the assembly efficiency is further improved. The positioning device 6 comprises a small supporting plate 61 and two positioning columns 62 positioned on the small supporting plate 61, the small supporting plate 61 is positioned on the upper end face of the operation panel and is fixedly connected with the small supporting plate, three elongated sliding grooves 611 with equal intervals are formed in the small supporting plate 61, the two positioning columns 62 can adjust left and right positions through relative sliding, the positioning columns 62 can also adjust front and back positions through clamping into the different sliding grooves 611, multi-angle adjustment can be achieved, and the clamp body adapting to various sizes is convenient to use.

As shown in fig. 1 and 9, the positioning column 62 includes a base 621 and a column 622, a positioning hole 6211 is formed in the center of the base 621, a first connecting head 6221 and a second connecting head 6222 are respectively disposed at two ends of the column 622, and the second connecting head 6222 is screwed into the positioning hole 6211. The both sides of the caliper body have ear seats, the hole site has all been seted up on the ear seat, the hole site all is that the caliper body is from taking, both clearance fit of the internal diameter adaptation of the diameter of connector one 6221 and foretell mounting hole, the caliper body directly can overlap respectively through the mounting hole at both ends and establish outside connector one 6221 and fix a position. The bottom of the positioning column 62 is provided with a second connector 6222, and the second connector 6222 is screwed on the base 621 to fix the column 622. The positions of the two positioning columns 62 are adjusted to be opposite to the two hole positions, then the caliper body is put down, and the first connecting head 6221 on the positioning columns 62 can extend into the hole positions, so that the caliper body is fixed. This assembly bench also can certainly come the not unidimensional caliper body of adaptation through changing cylinder 622 of equidimensional not, and cylinder 622 directly realizes the screw thread with base 621 and dismantles, has made things convenient for actual operation greatly, has further improved assembly efficiency. Base 621 is square and reference column 62 is located operating panel central point and puts, the fixed orifices has all been seted up on four angles of base 621, the bolt can be worn to establish in the fixed orifices, the bolt lower extreme stretches out outside the fixed orifices, then stretch out the section and go up to twist the nut, go into in spout 611 with the nut card in the side direction of spout 611, the both sides face that the nut is parallel to each other can support with spout 611 cell wall and lean on and restrict its circumferential direction, then the up end of nut also can support with the notch indent of spout 611 and lean on spacingly, so only need twist the bolt that moves in the fixed orifices and can lock base 621 and little layer board 61. The arrangement greatly facilitates the operation, and can quickly adjust and position the caliper body. All have the fixed orifices on four angles of base 621 simultaneously, two are a set of and two are another group with the downside of upside, two sets of positions just face two adjacent spouts 611, set up like this and make in the fixed orifices on above-mentioned two sets of all with little layer board 61 fixed bolt and nut after its fixed strength and precision all obtain promoting by a wide margin, make it more stable in operation process.

Example two

The structure and principle of this embodiment are basically the same as those of the first embodiment, except that: in this embodiment, the limiting member 5 is provided with a threaded connector, a threaded hole is formed in the end surface of the connecting rod, and the threaded connector is fixed to the threaded hole in a threaded manner.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a back parking calliper piston assembly bench, includes mount (1) and connects on mount (1) and height-adjustable's drive arrangement (2), be connected with connecting rod (24) on drive arrangement (2), and drive arrangement (2) can drive connecting rod (24) go up and down and rotate, its characterized in that, the cover is equipped with spring (3) and slider (4) in proper order on connecting rod (24), and slider (4) and connecting rod (24) circumference are fixed, connecting rod (24) tip still is equipped with locating part (5), spring (3) one end roof pressure is on slider (4) terminal surface and makes slider (4) support and lean on locating part (5), still be equipped with two convex parts (41) that are central symmetric distribution on another terminal surface of slider (4), slider (4) below still is equipped with positioner (6) that are used for the fixed calliper body.

2. The piston assembling table for the rear parking calipers according to claim 1, wherein a limiting ring (7) is further arranged at the end of the connecting rod (24), a guide head (42) is arranged on the sliding block (4), one end of the spring (3) is sleeved outside the guide head (42), the end of the spring (3) is pressed against one side face of the sliding block (4), and the other end of the spring (3) is pressed against the limiting ring (7).

3. The piston assembling table for the rear parking caliper is characterized in that the end part of the connecting rod (24) is square, a central hole (43) which penetrates through the sliding block (4) and is square is formed in the center position of the guide head (42), and the sliding block (4) extends into the central hole (43) through the end part of the connecting rod (24) and is fixed with the connecting rod (24) in the circumferential direction.

4. The piston assembling table for the rear parking caliper of claim 3, wherein a ring groove (44) is further formed in the sliding block (4) at a side hole of the central hole (43), the limiting member (5) is fixed at the end of the connecting rod (24) through a bolt, and the limiting member (5) is located in the ring groove (44) and abuts against the axial limiting sliding block (4) with the bottom of the ring groove.

5. The rear parking caliper piston assembling table according to any one of claims 1 to 4, wherein the positioning device (6) comprises a small supporting plate (61) and two sets of positioning pillars (62), the small supporting plate (61) is provided with a plurality of sliding grooves (611) with equal intervals, and the two sets of positioning pillars (62) are clamped in the sliding grooves (611) and can adjust the distance between the two sets of positioning pillars (62) through relative sliding.

6. The piston assembling table for the rear parking calipers as claimed in claim 5, wherein the positioning column (62) comprises a base (621) and a column body (622), a positioning hole (6211) is formed in the center of the base (621), a first connecting head (6221) and a second connecting head (6222) are respectively arranged at two ends of the column body (622), the second connecting head (6222) is in threaded connection with the positioning hole (6211), and the first connecting head (6221) is used for being matched with a mounting hole in the caliper body.

7. The piston assembly table of the rear parking caliper according to claim 1, wherein the driving device (2) further comprises a cylinder (21) and a motor (22) which are fixedly connected, a spline shaft (23) is slidably arranged in the cylinder (21), one end of the spline shaft (23) is fixed with the connecting rod (24), and the other end of the spline shaft (23) is connected and linked with the motor (22) through a synchronous belt.

8. The piston assembling table for the rear parking calipers according to claim 7, wherein the fixing frame (1) comprises a hollow tubular upright post (11) and a hollow tubular bearing arm (12), a first sleeving part (121) and a second sleeving part (122) are respectively arranged at two ends of the bearing arm (12), the first sleeving part (121) is sleeved outside the upright post (11) and provided with a loose bolt, and the second sleeving part (122) is sleeved outside the cylinder (21) and provided with a loose bolt.