Clamping mechanism of clamp spring assembling machine

Abstract

The utility model relates to the technical field of snap spring assembling, in particular to a clamping mechanism of a snap spring assembling machine, which comprises a clamping plate, a clamping seat is fixedly arranged on the clamping plate, two symmetrically arranged snap spring clamping pieces are vertically arranged in the clamping seat, and the two snap spring clamping pieces are arranged at intervals. Each snap spring clamping piece comprises a strip-shaped block extending into the clamping seat and a clamping needle located at the tail end of the strip-shaped block, two linkage blocks are transversely arranged in the clamping seat in a penetrating mode, one end of each linkage block is connected with the corresponding snap spring clamping piece, a pushing assembly is arranged at the other end of each linkage block, and the two snap spring clamping pieces are driven by the pushing assembly to be opened and closed. The utility model has the beneficial effect that the assembling requirement on the snap spring in the disc brake upper pump is met.

Description

Technical Field

[0001] The utility model relates to the technical field of circlip assembly, in particular to a clamping mechanism of a circlip assembly machine. Background Art

[0002] The retaining spring of the disc brake upper pump is an internal retaining spring, which is usually installed in the groove of the piston hole to maintain the pressure and stability of the brake system, thereby ensuring the braking effect. In order to improve the assembly efficiency of the retaining spring and realize automated production, retaining spring press machines for automatically assembling retaining springs have appeared on the market, which usually include a retaining spring feeding part and a retaining spring press part. For example, the utility model patent with patent number CN116765795A discloses a retaining spring press machine for a motor, wherein the clamping mechanism includes a rotary drive assembly, a first gear, a second gear and two retaining spring clamping needles, wherein the first gear and the second gear are arranged side by side on the lifting frame and mesh with each other, the rotary drive assembly is arranged on the lifting frame and is transmission-connected with the first gear, the two retaining spring clamping needles are respectively connected with the first gear and the second gear and are located at the bottom of the lifting frame; the first gear and the second gear are provided with a plurality of small teeth, and the plurality of small teeth correspond to and surround the The first gear or the second gear is arranged in sequence, and the first gear and / or the second gear are also provided with a plurality of large teeth, and the plurality of large teeth are located between two adjacent small teeth, and the tooth thickness of the large teeth is greater than the tooth thickness of the small teeth, and the full tooth height of the large teeth is greater than the full tooth height of the small teeth. When the first gear and the second gear rotate together to move the large teeth to between the first gear and the second gear, the large teeth support the first gear and the second gear to move the second gear away from the first gear, thereby making the two clamping pins of the clamping spring move away from each other. The clamping mechanism has the following disadvantages in the actual production process: 1. The meshing transmission of the first gear and the second gear is used to expand the clamping spring, which has high requirements on the precision of the gears, resulting in increased production costs, and because the outer diameter of the clamping spring cannot be further reduced after the two gears are meshed, the installation method of the clamping spring is limited; 2. Figure 4 As shown, when the retaining spring clamping needle cooperates with the retaining spring, its end extends outside the retaining spring, which cannot be applied to the installation structure with a retaining spring groove. The end of the retaining spring clamping needle will conflict with the bottom of the groove, resulting in the retaining spring being unable to be installed to the bottom of the groove. Therefore, it cannot be applied to the retaining spring assembly of the disc brake upper pump; 3. When the retaining spring is taken out from the material tray, only the retaining spring clamping needle is inserted into the retaining hole of the retaining spring to position the retaining spring. There are too few positioning structures for the retaining spring. When the retaining spring clamping needle is lowered with the lifting frame, there is vibration, which can easily cause the retaining spring to fall off the needle and fly out; 4. The retaining spring clamping needle is connected to the first gear and the second gear respectively, such as Figure 4As shown, when the retaining spring is clamped, the lifting frame drives the retaining spring clamping needle to press down so that the retaining spring is pressed into the stopper of the end cover positioned on the positioning seat. Due to the limitation of the rigidity of the retaining spring clamping needle material, the length of the retaining spring clamping needle is limited, which leads to the limitation of the assembly depth and cannot be applied to the situation where the retaining spring assembly depth is deeper. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a clamping mechanism of a retaining spring assembly machine in view of the deficiencies of the above-mentioned prior art, so as to meet the assembly requirements of retaining springs in disc brake upper pumps.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamping mechanism of a retaining spring assembly machine, characterized in that: it includes a clamping plate, a clamping seat is fixedly provided on the clamping plate, two symmetrically arranged retaining spring clamps are vertically installed in the clamping seat, and the two retaining spring clamps are arranged at intervals, and the retaining spring clamps include a strip block extending into the clamping seat and a clamping needle at the end of the strip block, two linkage blocks are horizontally penetrated in the clamping seat, one end of the linkage block is connected to the retaining spring clamp, and the other end is provided with a pushing component, the two retaining spring clamps are opened and closed under the drive of the pushing component, and the clamping plate is also provided with a pressing component for pressing the retaining spring downward.

[0005] The utility model with the above characteristics: by setting a pushing component to replace the gear transmission structure, the two retaining spring clamps can be opened and closed arbitrarily, thereby changing the tension and closing state of the retaining spring, and can adapt to different retaining spring installation positions. The retaining spring can be clamped on the piston rod of the disc brake upper pump, and cooperate with the pressing component to press the retaining spring into the groove of the piston hole to achieve the installation of the inner retaining spring; the clamping needle is set at the lower end of the strip block, which extends the length of the retaining spring clamp so that it can be suitable for retaining spring grooves of different depths. At the same time, the stiffness of the retaining spring clamp is improved and its service life is extended.

[0006] A further arrangement of the utility model is that the pressing assembly includes a pressing piece for pressing the retaining spring downward and a pressing cylinder for driving the pressing piece to move in a vertical direction, one end of the pressing piece extends into the clamping seat and abuts against the retaining spring clamped by the retaining spring clamping piece, and the other end is located above the clamping seat and linked with the pressing cylinder.

[0007] The utility model with the above-mentioned characteristics: in order to avoid the situation that the end of the clamping needle interferes with the bottom of the retaining ring groove and the retaining ring cannot be installed to the bottom of the groove, a pressing component is provided, and the pressing cylinder drives the pressing part to descend so as to press the retaining ring into the bottom of the groove, so that the retaining ring is separated from the retaining ring clamping part, thereby improving the practicality of the clamping mechanism.

[0008] A further arrangement of the utility model is: a connecting fork is provided between the pressing member and the pressing cylinder, one end of the connecting fork is connected to the output end of the pressing cylinder, and the other end is a fork mouth, the pressing member includes a pressing portion extending into the clamping seat, and a resistance portion located above the clamping seat, the fork mouth of the connecting fork resists against the resistance portion, a connecting rod is inserted in the clamping seat, a limit block is sleeved on the connecting rod, the limit block is fixedly connected to the clamping seat, a second spring is also provided in the clamping seat, one end of the second spring is located in the clamping seat, and the other end resists against the resistance member.

[0009] The utility model with the above characteristics: a connecting fork is arranged between the pressing member and the pressing cylinder, and cooperates with the second spring in the clamping seat so that the pressing member can automatically reset after being pressed down. By arranging the second spring, the pressing member can be buffered when descending and resetting, thereby extending its service life.

[0010] A further arrangement of the utility model is: the pushing assembly includes a vertically arranged pushing cylinder, a transmission member connected to the output end of the pushing cylinder, a pushing seat fixedly arranged on both sides of the clamping seat, and a pushing member; the pushing cylinder is fixedly mounted on the clamping plate; the transmission member includes a transmission arm located on both sides of the clamping seat; the transmission arm is plugged into the pushing seat; one end of the pushing member is linked to the transmission arm, and the other end is abutted against the linkage block; the pushing member pushes the linkage block along with the movement of the transmission arm.

[0011] The utility model with the above characteristics: by setting a transmission member and a pushing member, the force in the vertical direction of the pushing cylinder is converted into the force in the horizontal direction of the pushing member, thereby pushing the linkage block; the two transmission arms are integrated on one transmission member, which can ensure that the two transmission arms move at the same time, thereby ensuring the synchronous movement of the two linkage blocks.

[0012] A further configuration of the utility model is that an active cavity for a pushing member to pass through is provided at the end of the transmission arm, linkage grooves are provided on the cavity walls on both sides of the active cavity, the ends of the linkage grooves are inclined toward the clamping plate, a pin shaft is inserted on the pushing member, and both ends of the pin shaft pass through the linkage grooves and are placed in the strip grooves of the pushing seat.

[0013] The utility model with the above-mentioned characteristics: by setting a linkage groove with the end inclined toward the clamping plate on the transmission arm, when the transmission arm moves downward, the pin shaft moves from the end to the head end in the linkage groove, thereby driving the pushing member to move in the direction away from the clamping plate, pushing the linkage block, and realizing the conversion of the pushing cylinder force. The structure is simple, does not require high precision of parts, reduces production costs, and improves production efficiency.

[0014] A further configuration of the utility model is that the pushing component further comprises a first spring, one end of the first spring is connected to the pushing seat, and the other end of the first spring is connected to the linkage block.

[0015] The utility model with the above characteristics: after the cylinder is pushed to reset, the linkage block is reset under the action of the first spring; by providing the first spring, the linkage piece is buffered during the movement, thereby extending its service life.

[0016] A further configuration of the utility model is that a guide portion is provided at the bottom end of the clamping needle, and a horizontal cross section of the guide portion gradually decreases in a direction from top to bottom.

[0017] The utility model with the above-mentioned features: by providing the guide part, it is convenient for the clamping needle to be inserted into the hole of the clamping spring, thereby improving the clamping speed and smoothness of the clamping spring clamping piece.

[0018] A further arrangement of the utility model is that the clamping seat comprises a seat body and a clamping block detachably connected to the seat body, a movable groove for the linkage block to move is provided in the clamping block, an arc block is provided at the end of the linkage block extending into the clamping seat, a plug-in block for plugging with a retaining spring clamp is provided on the arc block, the strip block of the retaining spring clamp is arc-shaped, and an arc groove for the arc block to move is provided in the movable groove.

[0019] The utility model with the above-mentioned characteristics: the clamping seat is assembled with two detachably connected parts, which is convenient for the installation of the retaining spring clamping piece, the linkage block, and the pressing piece; the strip block, the movable groove and one end of the linkage block are all arranged in an arc shape, so that the retaining spring clamping piece can move along the circumference under the drive of the linkage block. Since the retaining spring is circular, the retaining spring clamping piece can better open and close the retaining spring by moving along the circumference.

[0020] A further arrangement of the utility model is: a slide rail is provided on the other end face of the clamping plate relative to the clamping seat, two sliders are slidably connected to the slide rail, a retaining spring clamp block is provided on the lower end face of the slider, the retaining spring clamp block is located below the clamping seat, the two retaining spring clamp blocks are respectively arranged on both sides of the retaining spring clamping piece, and the end of the retaining spring clamp block is provided with a clamping groove adapted to the outer peripheral wall of the retaining spring.

[0021] The utility model with the above-mentioned features: a retaining spring clamping block for clamping the retaining spring is additionally provided, and the retaining spring clamping piece is used to clamp the retaining spring together with the auxiliary retaining spring clamping piece, thereby improving the stability of the retaining spring clamping.

[0022] The utility model is further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0024] Figure 2 It is a schematic diagram of the back structure of the clamping mechanism according to an embodiment of the present invention.

[0025] Figure 3 An exploded view of a driving assembly according to an embodiment of the present invention.

[0026] Figure 4 It is an exploded view of the pressing assembly according to an embodiment of the present invention.

[0027] Figure 5 It is an exploded view of the structure related to the retaining spring clamp block according to an embodiment of the present invention.

[0028] Figure 6 It is a schematic structural diagram of a clamping block according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0030] like Figure 1-6 The clamping mechanism of the spring assembly machine shown in the figure includes a clamping plate 31, a clamping seat 32 is fixedly provided on the clamping plate 31, the clamping seat 32 includes a seat body 321, a clamping block 322 detachably connected to the seat body 321, two symmetrically arranged spring clamps 33 are vertically installed in the clamping seat 32, the two spring clamps 33 are arranged at intervals, the spring clamps 33 include a strip block 331 extending into the clamping seat 32 and a clamping needle 332 at the end of the strip block 331, the bottom end of the clamping needle 332 is provided with a guide portion 3321, and the horizontal cross-section of the guide portion 3321 from top to bottom The strip block 331 is arc-shaped, and the movable groove 323 is provided with an arc groove 3231 for the arc block 341 to move. One end of the linkage block 34 is connected to the retaining spring clamping piece, and the other end is provided with a pushing component 35. The two retaining spring clamping pieces 33 are opened and closed under the drive of the pushing component 35.

[0031] The pushing assembly 35 includes a vertically arranged pushing cylinder 351, a transmission member 352 connected to the output end of the pushing cylinder 351, a pushing seat 353 fixedly arranged on both sides of the clamping seat 32, and a pushing member 354. The pushing cylinder 351 is fixedly installed on the clamping plate 31, and the transmission member 352 includes a transmission arm 3521 located on both sides of the clamping seat 32, and the transmission arm 3521 is plugged into the pushing seat 353. The pushing member 352 is L-shaped, one end of which passes through the pushing seat 353 and is plugged into the clamping plate 31, and the other end is against the linkage block 34. The end of the transmission arm 3521 is provided with an active cavity 3522 for the pushing member 352 to pass through. The active cavity 352 2 is provided with linkage grooves 3523 on both sides of the cavity wall, the ends of the linkage grooves 3523 are inclined toward the clamping plate 31, a pin shaft 355 is inserted on the pushing member 354, both ends of the pin shaft 355 pass through the linkage grooves 3523 and are placed in the strip grooves 3531 of the pushing seat 353, and a pin shaft protection cover 358 is provided on the pushing seat 353 to prevent the pin shaft 355 from falling off from the strip groove 3531. The pushing assembly 35 also includes a first spring 356, one end of the first spring 356 is connected to the pushing seat 353, and the other end is connected to the linkage block 34, and the end of the linkage block 34 connected to the first spring 356 is provided with a fastener 357 that abuts against the pushing seat 353.

[0032] The clamping plate 31 is also provided with a pressing assembly 36 for pressing the clamping spring downward. The pressing assembly 36 includes a pressing piece 361 for pressing the clamping spring downward, a connecting fork 362, and a pressing cylinder 363 for driving the pressing piece 361 to move in the vertical direction. One end of the connecting fork 362 is connected to the output end of the pressing cylinder 363, and the other end is a fork 3621. The pressing piece 361 includes a pressing portion 3611 extending into the clamping seat 32, an abutting portion 361 located above the clamping seat 32, and a contact portion 361 located above the clamping seat 32. 2. One end of the pressing portion 3611 abuts against the clip clamped by the clip clamp, and the abutting portion 3612 abuts against the fork 3621 of the connecting fork 362. A connecting rod 364 is inserted into the clamping seat 32, and a limit block 365 is sleeved on the connecting rod 364. The limit block 365 is fixedly connected to the clamping seat 32. A second spring 366 is also provided in the clamping seat 32, and one end of the second spring 366 is located in the clamping seat 32, and the other end abuts against the abutting portion 3612.

[0033] A slide rail 37 is provided on the other end face of the clamping plate 31 relative to the clamping seat 32, and two sliders 38 are slidably connected to the slide rail 37. A retaining spring clamp block 39 is provided on the lower end face of the slider 38. The retaining spring clamp block 39 is located below the clamping seat 32. The two retaining spring clamp blocks 39 are respectively arranged on both sides of the retaining spring clamping piece 33, and a clamping groove 391 adapted to the outer peripheral wall of the retaining spring is provided at the end of the retaining spring clamp block 39.

[0034] In the actual production process, the clamping needle is inserted into the hole of the retaining ring. At the same time, the retaining ring clamping block clamps the retaining ring. When the clamping mechanism descends to the product to be installed, the pushing assembly is actuated to cause the linkage block to drive the retaining ring clamping parts to approach each other, shrink the retaining ring, and clamp the retaining ring on the piston rod of the disc brake upper pump. The retaining ring clamping block releases the retaining ring, and the clamping mechanism continues to descend until the end of the pressing part abuts against the product. The retaining ring clamping parts move away from each other under the drive of the pushing assembly, and the pressing assembly is actuated to drive the pressing part to descend to press the retaining ring into place. The clamping mechanism rises to its original position, and the pressing cylinder is reset.

Claims

1. A clamping mechanism for a circlip assembly machine, characterized in that: It includes a clamping plate, a clamping seat is fixedly provided on the clamping plate, two symmetrically arranged spring clamps are vertically installed in the clamping seat, the two spring clamps are spaced apart, the spring clamps include a strip block extending into the clamping seat and a clamping needle at the end of the strip block, two linkage blocks are horizontally penetrated in the clamping seat, one end of the linkage block is connected to the spring clamp, and the other end is provided with a pushing assembly, the two spring clamps are opened and closed under the drive of the pushing assembly, and the clamping plate is also provided with a pressing assembly for pressing the spring downward.

2. The clamping mechanism of the circlip assembly machine according to claim 1, characterized in that: The pressing assembly includes a pressing piece for pressing the retaining spring downward and a pressing cylinder for driving the pressing piece to move in a vertical direction. One end of the pressing piece extends into the clamping seat and abuts against the retaining spring clamped by the retaining spring clamping piece, and the other end is located above the clamping seat and linked with the pressing cylinder.

3. The clamping mechanism of the circlip assembly machine according to claim 2, characterized in that: A connecting fork is provided between the pressing member and the pressing cylinder, one end of the connecting fork is connected to the output end of the pressing cylinder, and the other end is a fork. The pressing member includes a pressing portion extending into the clamping seat, and a resistance portion located above the clamping seat. The fork of the connecting fork resists against the resistance portion. A connecting rod is inserted into the clamping seat, and a limit block is sleeved on the connecting rod. The limit block is fixedly connected to the clamping seat. A second spring is also provided in the clamping seat, and one end of the second spring is located in the clamping seat, and the other end resists against the resistance.

4. The clamping mechanism of a circlip assembly machine according to claim 1, characterized in that: The pushing assembly includes a vertically arranged pushing cylinder, a transmission member connected to the output end of the pushing cylinder, a pushing seat fixedly arranged on both sides of the clamping seat, and a pushing member. The pushing cylinder is fixedly installed on the clamping plate, and the transmission member includes a transmission arm located on both sides of the clamping seat, the transmission arm is plugged into the pushing seat, one end of the pushing member is linked to the transmission arm, and the other end is against the linkage block, and the pushing member pushes the linkage block with the movement of the transmission arm.

5. The clamping mechanism of the circlip assembly machine according to claim 4, characterized in that: An active cavity is provided at the end of the transmission arm for the pushing member to pass through, and linkage grooves are provided on the cavity walls on both sides of the active cavity. The ends of the linkage grooves are inclined toward the clamping plate. A pin shaft is inserted on the pushing member, and both ends of the pin shaft pass through the linkage grooves and are placed in the strip grooves of the pushing seat.

6. The clamping mechanism of a circlip assembly machine according to claim 4, characterized in that: The pushing assembly also includes a first spring, one end of which is connected to the pushing seat, and the other end of which is connected to the linkage block.

7. The clamping mechanism of the circlip assembly machine according to any one of claims 1, 2 or 4, characterized in that: A guide portion is provided at the bottom end of the clamping needle, and a horizontal cross-section of the guide portion gradually decreases in a direction from top to bottom.

8. The clamping mechanism of a circlip assembly machine according to claim 1 or 4, characterized in that: The clamping seat includes a seat body and a clamping block detachably connected to the seat body, the clamping block is provided with a movable groove for the linkage block to move, the end of the linkage block extending into the clamping seat is provided with an arc block, the arc block is provided with a plug-in block plugged with a retaining spring clamping piece, the strip block of the retaining spring clamping piece is arc-shaped, and the movable groove is provided with an arc groove for the arc block to move.

9. A clamping mechanism for a circlip assembly machine according to claim 1, 2 or 4, characterized in that: A slide rail is provided on the other end face of the clamping plate relative to the clamping seat, and two sliders are slidably connected to the slide rail. A retaining spring clamp block is provided on the lower end face of the slider, and the retaining spring clamp block is located below the clamping seat. The two retaining spring clamp blocks are respectively arranged on both sides of the retaining spring clamping piece, and the end of the retaining spring clamp block is provided with a clamping groove adapted to the outer peripheral wall of the retaining spring.

Images