An assembling mechanism for small clamping ring or clamping spring of automobile dust cover

Abstract

This invention discloses an assembly mechanism for small retaining rings or springs suitable for automotive dust covers. It includes a conical sleeve for receiving the small retaining rings or springs and expanding them to fit the upper annular groove of the dust cover; a conical sleeve clamping mechanism for vertically clamping the conical sleeve; a conical sleeve movement mechanism for driving the conical sleeve clamping mechanism to move the conical sleeve to a loading or unloading position; an umbrella sleeve component for gradually pushing the small retaining rings or springs on the conical sleeve into the dust cover from top to bottom; a primary umbrella sleeve push-pull mechanism for pushing the umbrella sleeve component directly above the conical sleeve so that the positioning sleeve of the umbrella sleeve component is fitted onto the top of the conical sleeve; and a secondary umbrella sleeve push-pull mechanism for simultaneously pushing the small retaining rings or springs from the upper part of the conical sleeve to the bottom until they are assembled onto the dust cover using multiple arc-shaped paddles of the umbrella sleeve component. The advantages are that it can effectively improve assembly efficiency, increase production capacity, enhance product stability, consistency, and quality, and avoid the problem of misalignment and crossover of the small retaining springs.

Description

Technical Field

[0001] This invention relates to an assembly technology for automotive dust cover accessories, and more particularly to an assembly mechanism for small retaining rings or small retaining springs suitable for automotive dust covers. Background Technology

[0002] Currently, dust covers are required for components such as linkages and control arms in automotive steering systems. After the dust covers are installed on these components, how can they be securely fixed while meeting airtightness requirements? To solve this technical problem, such as... Figure 1 As shown, a small annular groove 91 is typically provided at the top of the dust cover 9, and a small retaining ring (not shown in the figure) is installed inside the upper annular groove 91. The upper part of the dust cover 9 is fixed by the small retaining ring. Similarly, a large annular groove 92 is provided at the bottom of the dust cover 9, and a large retaining ring (not shown in the figure) is installed inside the lower annular groove 92. The lower part of the dust cover 9 is fixed by the large retaining ring, thereby reducing the penetration of water and sediment into the product and preventing damage, thus improving the product's sealing performance. Some dust covers do not have a small retaining ring at the top, but instead use a small retaining spring for fixation.

[0003] Currently, the small retaining rings or springs are assembled onto the upper part of the dust cover manually. This manual assembly method has several problems, mainly as follows: 1) Manual assembly is inefficient, resulting in low production capacity; 2) Manual assembly often cannot keep up with the equipment's pace, easily leading to omissions; 3) The consistency of the products after the small retaining rings or springs are installed is poor, and the product quality does not meet the requirements; 4) When manually assembling the small retaining springs onto the dust cover, there may be misalignment or cross-contamination issues. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an assembly mechanism for small retaining rings or small retaining springs suitable for automobile dust covers, which can effectively improve assembly efficiency, increase production cycle time, improve product stability, consistency and quality, and effectively avoid the problem of misalignment and crossover of small retaining springs.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problem is: an assembly mechanism for a small retaining ring or small retaining spring suitable for automobile dust covers, characterized in that it includes:

[0006] A conical sleeve is used to receive a small retaining ring or a small retaining spring, and to expand the small retaining ring or small retaining spring to fit into the upper annular groove provided on the upper part of the car dust cover. The bottom of the conical sleeve is designed to cover the reduced diameter cover at the top of the car dust cover.

[0007] A conical sleeve clamping mechanism is used to clamp the conical sleeve so that the axial direction of the conical sleeve is aligned with the vertical direction;

[0008] The cone sleeve movement mechanism is used to drive the cone sleeve clamping mechanism to move the cone sleeve vertically to the loading position or the unloading position. When the cone sleeve moves vertically upward to the loading position, the cone sleeve receives a small retaining ring or a small retaining spring. When the cone sleeve moves vertically downward to the unloading position, the diameter reduction cover covers the top of the car dust cover.

[0009] The umbrella cover component is used to gradually push the small retaining ring or small retaining spring received by the cone sleeve from top to bottom into the upper annular groove provided on the upper part of the car dust cover after the cone sleeve moves vertically downward to the unloading position. The umbrella cover component has a positioning sleeve and multiple arc-shaped paddles.

[0010] A primary umbrella sleeve push-pull mechanism is used to push the umbrella sleeve component directly above the cone sleeve after the cone sleeve moves vertically downward to the unloading position, so that the positioning sleeve is fitted onto the top of the cone sleeve.

[0011] The secondary umbrella cover push-pull mechanism is used to simultaneously apply force to the small retaining ring or small retaining spring on the cone sleeve by multiple arc-shaped paddles, so that the small retaining ring or small retaining spring is pushed from the upper part of the cone sleeve to the bottom so that the small retaining ring or small retaining spring slides into the upper annular groove provided on the upper part of the car dust cover.

[0012] The conical sleeve is mainly composed of a conical head, a clamping part, a conical middle part, a waist-shaped part, a straight lower part, and the reduced diameter cover, which are integrally connected from top to bottom. The small end of the conical head is a free end for receiving a small retaining ring or a small retaining spring. The large end of the conical head is connected to the top of the clamping part, and the bottom end of the clamping part is connected to the small end of the conical middle part. The diameters of the large end of the conical head, the clamping part, and the small end of the conical middle part are the same. The diameters of the large end of the conical middle part, the two ends of the waist-shaped part, and the lower straight part are the same. The top of the reduced diameter cover has a rounded transition, and the top of the reduced diameter cover extends downward to provide a conical positioning part for inserting into the central hole of the car dust cover. The tapered head, wider at the bottom and narrower at the top, facilitates the reception of small retaining rings or springs; the clamping part, used for connection with the tapered sleeve clamping mechanism, should not be designed in a tapered shape; the tapered middle section allows the small retaining rings or springs to gradually expand; the waist-shaped design effectively prevents the small retaining rings or springs from misaligning or crossing during the pushing process; the rounded transition at the top of the reduced-diameter cover allows the small retaining rings or springs pushed down from the bottom of the straight cylinder to smoothly slide into the upper annular groove on the upper part of the car dust cover.

[0013] The conical sleeve clamping mechanism mainly consists of a gripper cylinder. Both gripping arms of the gripper cylinder are L-shaped. The two gripping arms rotate 90 degrees inwards parallel to each other to clamp the conical sleeve, and rotate 90 degrees outwards parallel to each other to release the conical sleeve. Each end of the two gripping arms is equipped with a positioning chuck. The two positioning chucks face each other. Two symmetrical positioning grooves are formed on the peripheral wall of the clamping part. The bottom of the positioning groove is flat, and the groove wall gradually widens from the inside out. The head of the positioning chuck is designed to fit the shape of the positioning groove. When the two gripping arms of the gripper cylinder clamp the conical sleeve, the head of the positioning chuck is inserted into the corresponding positioning groove. This structure of the gripper cylinder provides a large clamping force, and by utilizing the cooperation between the positioning groove and the head of the positioning chuck, it can stably clamp the conical sleeve. The gradually widening groove wall facilitates the insertion of the positioning chuck head.

[0014] The conical sleeve motion mechanism mainly consists of a conical sleeve motion cylinder and a conical sleeve motion slide plate. The conical sleeve motion cylinder is installed vertically, with its cylinder rod pointing downwards and connected to the conical sleeve motion slide plate. The gripper cylinder is mounted on the conical sleeve motion slide plate. This conical sleeve motion mechanism has a simple structure and is easy to implement. The conical sleeve motion cylinder drives the gripper cylinder to move the conical sleeve vertically to the loading or unloading position. When the conical sleeve moves vertically upwards to the loading position, it receives a small retaining ring or a small retaining spring. When the conical sleeve moves vertically downwards to the unloading position, it covers the top of the car dust cover.

[0015] The umbrella cover component mainly consists of an umbrella cover shaft, a cylindrical connecting sleeve, an umbrella cover cover, and multiple arc-shaped levers. The umbrella cover shaft is vertically arranged and passes through the central through hole of the cylindrical connecting sleeve. A convex ring is provided at the top of the cylindrical connecting sleeve, and an annular groove is opened at the bottom of the cylindrical connecting sleeve. A spring is provided on the upper outer side of the cylindrical connecting sleeve. Two horizontal limiting pins are symmetrically arranged on the outer peripheral wall of the cylindrical connecting sleeve. The umbrella cover cover is sleeved on the lower outer side of the cylindrical connecting sleeve. The spring is restrained between the convex ring and the top of the umbrella cover cover. The diameter of the upper part of the inner hole of the umbrella cover cover is smaller than the diameter of the lower part of the inner hole. An annular gap is left between the lower part of the inner hole of the umbrella cover cover and the outer peripheral wall of the cylindrical connecting sleeve. A vertical elongated through hole corresponding to the horizontal limiting pin is opened on the peripheral wall of the umbrella cover cover, and the horizontal limiting pin passes through the corresponding vertical elongated through hole. The bottom of the umbrella sleeve shaft is hollow to form the positioning sleeve, which is adapted to the conical head. The top of the arc-shaped paddle is integrally provided with a joint portion with an axial cross-section of L. The horizontal section of the joint portion is embedded in the annular groove, and the vertical section of the joint portion is embedded in the annular gap. The top surface of the arc-shaped paddle is in close contact with the bottom surface of the umbrella sleeve. The lower part of the arc-shaped paddle is inclined inward. Multiple arc-shaped paddles are arranged in sequence to form an umbrella sleeve with a radial cross-section of circle. The lower part of the umbrella sleeve is tapered inward. Multiple annular grooves are distributed axially on the outer peripheral wall of the umbrella sleeve. Elastic rings for binding the arc-shaped paddles are embedded in the annular grooves. The umbrella sleeve and the conical sleeve are coaxial. The umbrella sleeve is used to push the small retaining ring or small retaining spring received by the conical sleeve from top to bottom into the upper annular groove provided on the upper part of the car dust cover.When the positioning sleeve of the umbrella sleeve shaft is fixed on the top of the conical sleeve, downward pressure is applied to the top of the cylindrical connecting sleeve. The cylindrical connecting sleeve drives the entire umbrella sleeve to move vertically downward. The bottom end face of the umbrella sleeve, i.e., the bottom end face of the multiple arc-shaped levers, moves the small retaining ring or small retaining spring received by the conical sleeve, pushing the small retaining ring or small retaining spring from top to bottom into the upper annular groove provided on the upper part of the car dust cover. During the process of pushing the small retaining ring or small retaining spring, the position can be corrected because the upper part of the cylindrical connecting sleeve is equipped with a spring. When the small retaining ring or small retaining spring is pushed into the upper annular groove provided on the upper part of the car dust cover, the bottom end face of the umbrella sleeve, i.e., the bottom end face of the multiple arc-shaped levers, may collide with the dust cover. At this time, under the rebound action of the spring, the dust cover and the pressure source applied to the cylindrical connecting sleeve can be protected; the cooperation between the horizontal limiting pin and the vertical elongated through hole allows the bottom end face of the umbrella cover, i.e. the bottom end face of the multiple arc-shaped paddles, to collide with the dust cover and the umbrella cover cover to move vertically upward a certain distance; since the cone sleeve is smaller at the top and larger at the bottom, the multiple arc-shaped paddles will be opened like an umbrella when the umbrella cover pushes the small retaining ring or small retaining spring. At this time, multiple elastic rings such as O-rings are used to restrain all the arc-shaped paddles, so that the arc-shaped paddles have a certain elasticity, ensuring that the small retaining ring or small retaining spring can be well assembled into the upper annular groove set in the upper part of the car dust cover.

[0016] The primary umbrella cover push-pull mechanism mainly consists of a primary umbrella cover push-pull cylinder and a primary umbrella cover push-pull slide. The primary umbrella cover push-pull cylinder is installed vertically, with its cylinder rod pointing downwards and connected to the top of the primary umbrella cover push-pull slide. The secondary umbrella cover push-pull mechanism is fixed to the primary umbrella cover push-pull slide. This primary umbrella cover push-pull mechanism is used to push the umbrella cover component directly above the conical sleeve after the conical sleeve moves vertically downwards to the unloading position, so that the positioning sleeve is fitted onto the top of the conical sleeve.

[0017] The secondary umbrella cover push-pull mechanism mainly consists of a secondary umbrella cover push-pull base, a secondary umbrella cover push-pull cylinder, and an umbrella cover mounting plate. The secondary umbrella cover push-pull base is fixed to the primary umbrella cover push-pull slide. The secondary umbrella cover push-pull cylinder is vertically installed above the secondary umbrella cover push-pull base via a connecting rod. The cylinder rod of the secondary umbrella cover push-pull cylinder faces downward and is symmetrically connected to two push rods via an adapter plate. The bottom of the push rods passes through the secondary umbrella cover push-pull base and the primary umbrella cover push-pull slide and is fixedly connected to the umbrella cover mounting plate. The top of the cylindrical connecting sleeve is fixedly connected to the bottom of the umbrella cover mounting plate. The top of the umbrella cover shaft passes through the primary umbrella cover push-pull slide and is fixedly connected to the bottom of the secondary umbrella cover push-pull base. The secondary umbrella cover push-pull cylinder uses two push rods, an umbrella cover mounting plate, and a cylindrical connecting sleeve to cause multiple arc-shaped paddles to simultaneously apply force to a small retaining ring or spring on the cone sleeve, pushing the small retaining ring or spring from the top of the cone sleeve to the bottom so that it slides into the upper annular groove set in the upper part of the car dust cover; a guide sleeve can be vertically installed on the secondary umbrella cover push-pull base so that the push rod passes through the guide sleeve, thereby making the movement of the umbrella cover more stable.

[0018] The assembly mechanism also includes an assembly frame. The conical sleeve movement cylinder is vertically mounted on the back of the assembly frame. The assembly frame has a vertical stroke hole. The cylinder rod of the conical sleeve movement cylinder is connected to the back of the conical sleeve movement slide plate through a connecting block. The connecting block moves within the vertical stroke hole. The first-stage umbrella sleeve push-pull cylinder is vertically mounted on the top of the assembly frame. A first linear guide pair is provided between the front of the assembly frame and the back of the first-stage umbrella sleeve push-pull slide plate and the back of the conical sleeve movement slide plate. A first hydraulic buffer is provided at the bottom of the conical sleeve movement slide plate. A collision block corresponding to the first hydraulic buffer is provided on the front of the assembly frame. When the conical sleeve moves vertically downward to the unloading position, the first hydraulic buffer contacts the collision block. A laser detector for detecting the presence of the conical sleeve is installed at the bottom of the gripper cylinder and in the area corresponding to the unloading position on the front of the assembly frame. Here, the linear guide of the first linear guide pair is set on the front of the assembly frame, and the slider of the first linear guide pair is set on the back of the first umbrella cover push-pull slide and the back of the cone sleeve movement slide. The vibration generated when the cone sleeve movement cylinder stops moving (moving downward) can be reduced by the first hydraulic damper. The laser detector installed on the bottom of the gripper cylinder is used to detect whether the gripper cylinder is holding the cone sleeve tightly, and the laser detector installed on the front of the assembly frame is used to detect whether the cone sleeve has been placed on the car dust cover.

[0019] The assembly mechanism is also equipped with a picking and placing mechanism for picking up small retaining rings or circlips and placing them onto the conical sleeve. This picking and placing mechanism includes a picking and placing base, a picking cylinder, a placing cylinder, a picking and placing sliding seat, a swing cylinder, and a parallel gripper. The picking and placing base is fixed, the picking and placing sliding seat is positioned directly below it, the picking cylinder is vertically mounted on the picking and placing base, with its cylinder rod pointing downwards and connected to the top of the picking and placing sliding seat, and the placing cylinder is vertically mounted on the picking and placing base. The cylinder rod faces downward and is connected to an upper push rod. The top of the pick-and-place sliding seat is provided with a lower push rod corresponding to the position of the upper push rod. The swing cylinder is horizontally installed at the bottom of the pick-and-place sliding seat. The output shaft of the swing cylinder faces downward and is connected to the parallel gripper through an adapter plate. The parallel gripper is horizontally arranged. Each of the two clamping arms of the parallel gripper has a vertical chuck at its bottom end. The two vertical chucks radially support or disengage small retaining rings or small retaining springs. The top of the conical head is symmetrically provided with two chuck receiving notches for accommodating the vertical chucks. This pick-and-place mechanism automatically feeds small retaining rings or circlips from the small retaining ring or circlip feeding fixture into the conical sleeve. Specifically, during pick-up, the pick-up cylinder actuates, causing the parallel gripper to move vertically downwards. The parallel gripper on the small retaining ring or circlip feeding fixture moves its two clamping arms in opposite directions, thus allowing the two vertical chucks to radially support the small retaining ring or circlip, achieving pick-up. After pick-up, the pick-up cylinder actuates, causing the parallel gripper to move vertically upwards, so that the bottom of the vertical chucks is positioned precisely within the conical sleeve. In the upper part of the top area, during material release, the swing cylinder moves the parallel gripper at a certain angle, aligning the position of the vertical chuck with the two chuck receiving notches on the top of the cone sleeve. The material release cylinder then moves the upper push rod against the lower push rod, pushing the vertical chuck down a short distance along the chuck receiving notches on the top of the cone sleeve. The parallel gripper then moves its two clamping arms toward each other, causing the two vertical chucks to disengage from the small retaining ring or small retaining spring, thus releasing the material. At this time, the small retaining ring or small retaining spring is fitted onto the top of the cone sleeve. The action of the picking cylinder defines two positions. When the cylinder rod of the picking cylinder extends, the two vertical clamps are positioned to pick up the small retaining ring or spring, which is the picking position. When the cylinder rod of the picking cylinder retracts, the bottom of the two vertical clamps is positioned just above the top of the cone sleeve, which is the pre-discharge position. During the action of the picking cylinder, the discharge cylinder does not move, and its cylinder rod is retracted. When the position of the vertical clamps corresponds to the two clamp receiving notches on the top of the cone sleeve, the material is discharged. The picking cylinder does not move, and the discharge cylinder moves, causing the cylinder rod to extend. The upper push rod abuts against the lower push rod and pushes the lower push rod, causing the parallel gripper to move downward. Generally, the bottom of the vertical clamps should pass over the top of the cone sleeve. The discharge cylinder is then controlled to not move, and the material is in the discharge position.

[0020] The bottom of the vertical chuck is integrally provided with a flange. When the two vertical chucks support the small retaining ring or small retaining spring, the small retaining ring or small retaining spring is located above the flange. By providing a flange at the bottom of the vertical chuck, the small retaining ring or small retaining spring will not easily fall off the parallel pneumatic gripper during the process of picking up and unloading the material. The small retaining ring or small retaining spring picking and unloading mechanism also includes a picking and unloading frame. The picking and unloading base is fixed to the upper front of the picking and unloading frame. A second linear guide pair is provided between the back of the picking and unloading sliding seat and the front of the picking and unloading frame. The second linear guide pair makes the vertical upward or downward movement of the picking and unloading sliding seat relative to the picking and unloading base more stable, thus making the picking and unloading process of the small retaining ring or small retaining spring more stable and reliable. The linear guide of the second linear guide pair is vertically installed on the front of the picking and unloading frame, and the slider of the second linear guide pair is installed... On the back of the pick-and-place sliding seat; an auxiliary plate is connected to the bottom of the pick-and-place sliding seat, and an approach post is provided on the rear end of the auxiliary plate. Reflective photoelectric sensors and second hydraulic buffers are installed on the upper and lower sides of the pick-and-place frame. The positions of the reflective photoelectric sensors correspond to the positions of the approach posts. The contacts of the second hydraulic buffer are used to contact the surface of the auxiliary plate. The signal from the reflective photoelectric sensor can control the pick-up cylinder to stop. The upper and lower reflective photoelectric sensors limit the vertical movement stroke. The lower reflective photoelectric sensor makes the two vertical clamps just at the position for picking up small clasps or small snap rings, and the upper reflective photoelectric sensor makes the bottom of the two vertical clamps just above the top of the cone sleeve. The second hydraulic buffer can reduce the vibration generated when the pick-up cylinder stops.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] 1) At the loading position, the cone sleeve, held by the cone sleeve clamping mechanism, receives the small retaining ring or small retaining spring; the cone sleeve moving mechanism drives the cone sleeve to move vertically downward to the unloading position so that the reduced diameter cover of the cone sleeve covers the top of the car dust cover; the first-stage umbrella cover pushing and pulling mechanism drives the umbrella cover component to move directly above the cone sleeve, so that the positioning sleeve of the umbrella cover component is fitted onto the top of the cone sleeve; the second-stage umbrella cover pushing and pulling mechanism drives multiple arc-shaped paddles to simultaneously apply force to the small retaining ring or small retaining spring on the cone sleeve, pushing the small retaining ring or small retaining spring from the top of the cone sleeve to the bottom so that the small retaining ring or small retaining spring slides into the upper annular groove set in the upper part of the car dust cover. At this point, the small retaining ring or small retaining spring is assembled onto the dust cover. The entire assembly process is automated, improving assembly efficiency and thus increasing production capacity; increasing production cycle time and avoiding missing parts; and improving the stability, consistency and quality of the product.

[0023] 2) The cooperation between the arc-shaped paddle and the cone sleeve avoids the problem of misalignment and crossover of the small retaining ring.

[0024] 3) This assembly mechanism is suitable for small retaining rings or small retaining springs with a size range of 10-25mm. Attached Figure Description

[0025] Figure 1 A schematic diagram of the structure of a car dust cover;

[0026] Figure 2 This is a schematic diagram of the assembly mechanism of the present invention. Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the assembly mechanism of the present invention. Figure 2 ;

[0028] Figure 4 This is a schematic diagram of the assembly part in the assembly mechanism of the present invention. Figure 1 ;

[0029] Figure 5 This is a schematic diagram of the assembly part in the assembly mechanism of the present invention. Figure 2 ;

[0030] Figure 6 for Figure 5 An enlarged schematic diagram of part A in the middle;

[0031] Figure 7 This is a partial structural diagram of the assembly part in the assembly mechanism of the present invention;

[0032] Figure 8 This is a schematic diagram of the umbrella cover component (with two arc-shaped paddles removed) in the assembly part of the assembly mechanism of the present invention;

[0033] Figure 9 This is a schematic diagram of the structure of the umbrella cover component (with the two arc-shaped paddles, umbrella cover and elastic ring removed) in the assembly part of the assembly mechanism of the present invention;

[0034] Figure 10 This is an axial sectional view of the umbrella sleeve component in the assembly part of the assembly mechanism of the present invention;

[0035] Figure 11 This is a schematic diagram of the pick-and-place mechanism in the assembly mechanism of the present invention. Figure 1 ;

[0036] Figure 12 for Figure 11 Enlarged schematic diagram of part B;

[0037] Figure 13 This is a schematic diagram of the pick-and-place mechanism in the assembly mechanism of the present invention. Figure 2 . Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] This invention proposes an assembly mechanism for small retaining rings or springs suitable for automotive dust covers, such as... Figures 2 to 13 As shown, it includes: a conical sleeve 1, which receives a small retaining ring or a small retaining spring K and expands the small retaining ring or the small retaining spring K to fit into the upper annular groove 91 provided on the upper part of the car dust cover 9. The bottom of the conical sleeve 1 is designed to cover the reduced diameter cover 106 on the top of the car dust cover 9; a conical sleeve clamping mechanism 2, which clamps the conical sleeve 1 so that the axis of the conical sleeve 1 is aligned with the vertical direction; a conical sleeve moving mechanism 3, which drives the conical sleeve clamping mechanism 2 to move the conical sleeve 1 vertically to the loading position or the unloading position. When the conical sleeve 1 moves vertically upward to the loading position, the conical sleeve 1 receives the small retaining ring or the small retaining spring K. When the conical sleeve 1 moves vertically downward to the unloading position, the reduced diameter cover 106 covers the top of the car dust cover 9; and an umbrella cover component 4, which is used to cover the conical sleeve. 1. After moving vertically downward to the unloading position, the small retaining ring or small retaining spring K received by the cone sleeve 1 is gradually pushed from top to bottom into the upper annular groove 91 provided on the upper part of the car dust cover 9. The umbrella cover component 4 has a positioning sleeve 401 and multiple arc-shaped paddles 402. The first-stage umbrella cover push-pull mechanism 5 is used to push the umbrella cover component 4 to the top of the cone sleeve 1 after the cone sleeve 1 moves vertically downward to the unloading position, so that the positioning sleeve 401 is fitted onto the top of the cone sleeve 1. The second-stage umbrella cover push-pull mechanism 6 is used to make the multiple arc-shaped paddles 402 simultaneously apply force to the small retaining ring or small retaining spring K on the cone sleeve 1, and push the small retaining ring or small retaining spring K from the upper part of the cone sleeve 1 to the bottom so that the small retaining ring or small retaining spring K slides into the upper annular groove 91 provided on the upper part of the car dust cover 9.

[0040] Specifically, the cone sleeve 1 is mainly composed of a cone-shaped head 101, a clamping part 102, a cone-shaped middle part 103, a waist-shaped part 104, a straight lower part 105, and a diameter-reducing cover 106, which are integrally connected from top to bottom. The small end of the cone-shaped head 101 is a free end used to receive a small retaining ring or a small retaining spring K. The large end of the cone-shaped head 101 is connected to the top of the clamping part 102, and the bottom end of the clamping part 102 is connected to the small end of the cone-shaped middle part 103. The diameter of the large end of the cone-shaped head 101, the diameter of the clamping part 102, and the diameter of the small end of the cone-shaped middle part 103 are the same. The diameter of the large end of the cone-shaped middle part 103, the diameters of both ends of the waist-shaped part 104, and the diameter of the straight lower part 105 are the same. The top of the diameter-reducing cover 106 has a rounded transition. The top of the diameter-reducing cover 106 extends downward and is provided with a cone-shaped positioning part 107 for inserting into the central hole 93 of the car dust cover 9. The tapered head 101 is wider at the bottom than at the top to facilitate receiving small retaining rings or small retaining springs K; the clamping part 102 is used to connect with the tapered sleeve clamping mechanism 2 and should not be designed in a tapered shape; the tapered middle part 103 allows the small retaining rings or small retaining springs K to gradually expand; the waist-shaped part 104 is designed to effectively prevent the small retaining rings or small retaining springs K from misaligning or crossing during the pushing process; the rounded transition at the top of the reduced diameter cover 106 allows the small retaining rings or small retaining springs K pushed down from the lower part 105 of the straight cylinder to smoothly slide into the upper annular groove 91 provided on the upper part of the car dust cover 9.

[0041] Specifically, the conical sleeve clamping mechanism 2 is mainly composed of a gripper cylinder 201. The two clamping arms 202 of the gripper cylinder 201 are both L-shaped. The two clamping arms 202 of the gripper cylinder 201 can clamp the conical sleeve 1 by rotating 90 degrees inward parallel relative to each other, and can release the conical sleeve 1 by rotating 90 degrees outward parallel opposite to each other. The ends of the two clamping arms 202 of the gripper cylinder 201 are provided with positioning chucks 203. The two positioning chucks 203 are opposite to each other. Two positioning grooves 108 are symmetrically opened on the peripheral wall of the clamping part 102. The bottom of the positioning groove 108 is flat. The groove wall of the positioning groove 108 gradually expands from the inside to the outside. The head of the positioning chuck 203 is designed to fit the shape of the positioning groove 108. When the two clamping arms 202 of the gripper cylinder 201 clamp the conical sleeve 1, the head of the positioning chuck 203 is embedded in the corresponding positioning groove 108. The gripper cylinder 201 with this structure has a large clamping force, and by utilizing the cooperation between the positioning groove 108 and the head of the positioning chuck 203, it can stably clamp the cone sleeve 1; the groove wall of the positioning groove 108 gradually expands from the inside to the outside to facilitate the insertion of the head of the positioning chuck 203.

[0042] Specifically, the conical sleeve motion mechanism 3 mainly consists of a conical sleeve motion cylinder 301 and a conical sleeve motion slide plate 302. The conical sleeve motion cylinder 301 is installed vertically, with its cylinder rod pointing downwards and connected to the conical sleeve motion slide plate 302. The gripper cylinder 201 is installed on the conical sleeve motion slide plate 302. The conical sleeve motion mechanism 3 has a simple structure and is easy to implement. The conical sleeve motion cylinder 301 is used to drive the gripper cylinder 201 to move the conical sleeve 1 vertically to the loading or unloading position. When the conical sleeve 1 moves vertically upwards to the loading position, it receives a small retaining ring or a small retaining spring K. When the conical sleeve 1 moves vertically downwards to the unloading position, the diameter reduction cover 106 covers the top of the car dust cover 9.

[0043] Specifically, the umbrella cover component 4 mainly consists of an umbrella cover shaft 403, a cylindrical connecting sleeve 404, an umbrella cover 405, and multiple arc-shaped levers 402. The umbrella cover shaft 403 is vertically arranged and passes through the central through hole of the cylindrical connecting sleeve 404. A protruding ring 406 is provided at the top of the cylindrical connecting sleeve 404, and an annular groove 407 is opened at the lower part of the cylindrical connecting sleeve 404. A spring 408 is provided on the upper outer side of the cylindrical connecting sleeve 404, and two horizontal limiting rods are symmetrically arranged on the outer peripheral wall of the cylindrical connecting sleeve 404. The locating pin 409 and the umbrella cover 405 are sleeved on the lower part of the cylindrical connecting sleeve 404. The spring 408 is restrained between the convex ring 406 and the top of the umbrella cover 405. The diameter of the upper part of the inner hole of the umbrella cover 405 is smaller than the diameter of the lower part of the inner hole. An annular gap 410 is left between the lower part of the inner hole of the umbrella cover 405 and the outer peripheral wall of the cylindrical connecting sleeve 404. A vertical elongated through hole 411 corresponding to the horizontal locating pin 409 is opened on the peripheral wall of the umbrella cover 405. The horizontal locating pin 409 passes through the corresponding vertical elongated through hole 411. A strip-shaped through hole 411 is formed. The bottom of the umbrella cover shaft 403 is hollow to form a positioning sleeve 401, which is adapted to the conical head 101. The top of the arc-shaped lever 402 is integrally provided with a joint portion 412 with an axial cross section of L-shape. The horizontal section 413 of the joint portion 412 is embedded in the annular groove 407, and the vertical section 414 of the joint portion 412 is embedded in the annular gap 410. The top surface of the arc-shaped lever 402 is in close contact with the bottom surface of the umbrella cover 405. The lower part of the arc-shaped lever 402 is inclined inward. Multiple arc-shaped levers are used. The shaped paddles 402 are arranged one after another to form an umbrella cover 415 with a circular radial cross section. The lower part of the umbrella cover 415 is tapered inward. Multiple annular grooves 416 are distributed axially on the outer peripheral wall of the umbrella cover 415. Elastic rings 417 for binding the arc-shaped paddles 402 are embedded in the annular grooves 416. The umbrella cover 415 is coaxial with the cone sleeve 1. The umbrella cover 415 is used to push the small retaining ring or small retaining spring K received by the cone sleeve 1 from top to bottom into the upper annular groove 91 provided on the upper part of the car dust cover 9.When the positioning sleeve 401 of the umbrella sleeve shaft 403 is fixed on the top of the conical sleeve 1, downward pressure is applied to the top of the cylindrical connecting sleeve 404. The cylindrical connecting sleeve 404 drives the entire umbrella sleeve 415 to move vertically downward. The bottom end face of the umbrella sleeve 415, i.e., the bottom end face of the multiple arc-shaped paddles 402, actuates the small retaining ring or small retaining spring K received by the conical sleeve 1, gradually pushing the small retaining ring or small retaining spring K from top to bottom into the upper annular groove 91 provided on the upper part of the car dust cover 9. During the process of pushing the small retaining ring or small retaining spring K, because the upper part of the cylindrical connecting sleeve 404 is provided with a spring 408, the position can be corrected. And when the small retaining ring or small retaining spring K is pushed into the upper annular groove 91 provided on the upper part of the car dust cover 9, the bottom end face of the umbrella sleeve, i.e., the bottom end face of the multiple arc-shaped paddles 402, may collide with the dust cover 9. Under the rebound action of the spring 408, the dust cover 9 and the pressure source applied to the cylindrical connecting sleeve 404 can be protected; the cooperation between the horizontal limiting pin 409 and the vertical elongated through hole 411 allows the bottom end face of the umbrella cover 415, i.e. the bottom end face of the multiple arc-shaped paddles 402, to collide with the dust cover 9, so that the umbrella cover 415 and the umbrella cover 405 can be vertically displaced upward a certain distance; since the cone sleeve 1 is smaller at the top and larger at the bottom, the multiple arc-shaped paddles 402 will be opened like an umbrella when the umbrella cover 415 pushes the small retaining ring or small retaining spring K. At this time, multiple elastic rings 417, such as O-rings, are used to restrain all the arc-shaped paddles 402, so that the arc-shaped paddles 402 have a certain elasticity, ensuring that the small retaining ring or small retaining spring K can be well assembled into the upper annular groove 91 provided on the upper part of the car dust cover 9.

[0044] Specifically, the primary umbrella cover push-pull mechanism 5 mainly consists of a primary umbrella cover push-pull cylinder 501 and a primary umbrella cover push-pull slide 502. The primary umbrella cover push-pull cylinder 501 is installed vertically, with its cylinder rod pointing downwards and connected to the top of the primary umbrella cover push-pull slide 502. The secondary umbrella cover push-pull mechanism 6 is fixed to the primary umbrella cover push-pull slide 502. This primary umbrella cover push-pull mechanism 5 is used to push the umbrella cover component 4 directly above the conical sleeve 1 after the conical sleeve 1 moves vertically downwards to the unloading position, so that the positioning sleeve 401 is fitted onto the top of the conical sleeve 1.

[0045] Specifically, the secondary umbrella cover push-pull mechanism 6 mainly consists of a secondary umbrella cover push-pull base 601, a secondary umbrella cover push-pull cylinder 602, and an umbrella cover mounting plate 603. The secondary umbrella cover push-pull base 601 is fixed on the primary umbrella cover push-pull slide 502. The secondary umbrella cover push-pull cylinder 602 is vertically installed above the secondary umbrella cover push-pull base 601 via a connecting rod 604. The cylinder rod of the secondary umbrella cover push-pull cylinder 602 faces downward and is symmetrically connected to two push rods 606 via a transition plate 605. The bottom of the push rods 606 passes through the secondary umbrella cover push-pull base 601 and the primary umbrella cover push-pull slide 502 and is fixedly connected to the umbrella cover mounting plate 603. The top of the cylindrical connecting sleeve 404 is fixedly connected to the bottom of the umbrella cover mounting plate 603. The top of the umbrella cover shaft 403 passes through the primary umbrella cover push-pull slide 502 and is fixedly connected to the bottom of the secondary umbrella cover push-pull base 601. The secondary umbrella cover push-pull cylinder 602, through two push rods 606, umbrella cover mounting plate 603, and cylindrical connecting sleeve 404, causes multiple arc-shaped paddles 402 to simultaneously apply force to the small retaining ring or small retaining spring K on the cone sleeve 1, pushing the small retaining ring or small retaining spring K from the upper part of the cone sleeve 1 to the bottom so that the small retaining ring or small retaining spring K slides into the upper annular groove 91 provided on the upper part of the car dust cover 9; a guide sleeve 607 can be vertically installed on the secondary umbrella cover push-pull base 601 so that the push rod 606 passes through the guide sleeve 607, thereby making the movement of the umbrella cover 415 more stable.

[0046] Specifically, the assembly mechanism also includes an assembly frame 7, a conical sleeve movement cylinder 301 vertically mounted on the back of the assembly frame 7, a vertical stroke hole 701 on the assembly frame 7, the cylinder rod of the conical sleeve movement cylinder 301 connected to the back of the conical sleeve movement slide plate 302 via a connecting block 702, the connecting block 702 moving within the vertical stroke hole 701, and a first-stage umbrella cover push-pull cylinder 501 vertically mounted on the top of the assembly frame 7. The front of the assembly frame 7 is connected to the back of the first-stage umbrella cover push-pull slide plate 502 and the conical sleeve movement slide plate. A first linear guide pair 703 is provided between the back sides of 302. A first hydraulic buffer 704 is provided at the bottom of the conical sleeve sliding plate 302. A collision block 705 corresponding to the first hydraulic buffer 704 is provided on the front side of the assembly frame 7. When the conical sleeve 1 moves vertically downward to the unloading position, the first hydraulic buffer 704 contacts the collision block 705. A laser detector 706 for detecting whether there is a conical sleeve is installed on the bottom of the gripper cylinder 201 and on the front side of the assembly frame 7 in the area corresponding to the unloading position. Here, the linear guide of the first linear guide pair 703 is set on the front of the assembly frame 7, and the slider of the first linear guide pair 703 is set on the back of the first umbrella cover push-pull slide 502 and the back of the cone sleeve movement slide 302; the vibration generated when the cone sleeve movement cylinder 301 stops moving (moves downward) can be reduced by the first hydraulic damper 704; the laser detector 706 installed on the bottom of the gripper cylinder 201 is used to detect whether the gripper cylinder 201 is holding the cone sleeve 1, and the laser detector 706 installed on the front of the assembly frame 7 is used to detect whether the cone sleeve 1 has been placed on the car dust cover 9.

[0047] In a further improvement, the assembly mechanism is also equipped with a pick-and-place mechanism 8 for picking up small retaining rings or circlips K and placing them onto the conical sleeve 1. The pick-and-place mechanism 8 includes a pick-and-place base 801, a picking cylinder 802, a placing cylinder 803, a picking-and-place sliding seat 804, a swing cylinder 805, and a parallel gripper 806. The pick-and-place base 801 is fixed, the picking-and-place sliding seat 804 is positioned directly below it, the picking cylinder 802 is vertically mounted on the pick-and-place base 801, with its cylinder rod pointing downwards and connected to the top of the picking-and-place sliding seat 804, and the placing cylinder 803 is vertically mounted on the pick-and-place base 801. The cylinder rod of cylinder 3 faces downward and is connected to an upper push rod 807. The top of the pick-and-place sliding seat 804 is provided with a lower push rod 808 corresponding to the position of the upper push rod 807. The swing cylinder 805 is horizontally installed at the bottom of the pick-and-place sliding seat 804. The output shaft of the swing cylinder 805 faces downward and is connected to the parallel gripper 806 through an adapter plate 809. The parallel gripper 806 is horizontally set. At the bottom of the two clamping arms 810 of the parallel gripper 806, there is a vertical chuck 811. The two vertical chucks 811 support or disengage the small retaining ring or small retaining spring K in the radial direction. The top of the conical head 101 is symmetrically provided with two chuck receiving notches 109 for accommodating the vertical chucks 811. The pick-and-place mechanism 8 automatically feeds the small retaining ring or small retaining spring K from the feeding fixture into the conical sleeve 1. Specifically, during pick-up, the pick-up cylinder 802 actuates, driving the parallel gripper 806 to move vertically downwards. On the small retaining ring or small retaining spring feeding fixture, the parallel gripper 806 actuates, causing its two clamping arms 810 to move in opposite directions, thereby allowing the two vertical chucks 811 to radially support the small retaining ring or small retaining spring K for pick-up. After pick-up, the pick-up cylinder 802 actuates, driving the parallel gripper 806 to move vertically upwards, so that the bottom of the vertical chucks 811 is just above the top of the conical sleeve 1. During material release, the swing cylinder 805 actuates to swing the parallel gripper 806 at a certain angle, aligning the position of the vertical chuck 811 with the two chuck receiving notches 109 on the top of the cone sleeve 1. The material release cylinder 803 actuates to push the upper push rod 807 against the lower push rod 808, causing the vertical chuck 811 to move down a short distance along the chuck receiving notches 109 on the top of the cone sleeve 1. The parallel gripper 806 actuates to move its two clamping arms 810 toward each other, thereby disengaging the two vertical chucks 811 from the small retaining ring or small retaining spring K to release the material. At this time, the small retaining ring or small retaining spring K is fitted on the top of the cone sleeve 1.The action of the picking cylinder 802 defines two positions. When the cylinder rod of the picking cylinder 802 extends, the two vertical clamps 811 are positioned to pick up the small retaining ring or small retaining spring K, i.e., the picking position. When the cylinder rod of the picking cylinder 802 retracts, the bottom of the two vertical clamps 811 is positioned above the top of the cone sleeve 1, i.e., the pre-discharge position. During the action of the picking cylinder 802, the discharge cylinder 803 does not move, and its cylinder rod is in a retracted state. When the position of the vertical clamps 811 corresponds to the two clamp receiving notches 109 on the top of the cone sleeve 1, the material is discharged. The picking cylinder 802 does not move, and the discharge cylinder 803 moves, causing the cylinder rod to extend. The upper push rod 807 abuts against the lower push rod 808 and pushes the lower push rod 808 to move the parallel gripper 806 downward. Generally, the bottom of the vertical clamps 811 should pass over the top of the cone sleeve 1. The discharge cylinder 803 is then controlled to not move, and the material is in the discharge position.

[0048] In a further improvement, the bottom of the vertical chuck 811 is integrally provided with a flange 812. When the two vertical chucks 811 support the small retaining ring or small retaining spring K, the small retaining ring or small retaining spring K is located above the flange 812. By providing a flange 812 at the bottom of the vertical chuck 811, the small retaining ring or small retaining spring K will not easily fall off the parallel pneumatic gripper 806 from the time of material picking to the time of material unloading.

[0049] Specifically, the small clasp or small snap ring K picking and placing mechanism 8 also includes a picking and placing frame 813. The picking and placing base 801 is fixed on the upper front of the picking and placing frame 813. A second linear guide pair 814 is provided between the back of the picking and placing sliding seat 804 and the front of the picking and placing frame 813. The second linear guide pair 814 makes the vertical upward or downward movement of the picking and placing sliding seat 804 relative to the picking and placing base 801 more stable, thus making the picking and placing process of the small clasp or small snap ring K more stable and reliable. The linear guide of the second linear guide pair 814 is vertically installed on the front of the picking and placing frame 813, and the slider of the second linear guide pair 814 is installed on the back of the picking and placing sliding seat 804.

[0050] In a further improvement, an auxiliary plate 815 is connected to the bottom of the pick-up and place sliding seat 804. An approach post 816 is provided on the rear end of the auxiliary plate 815. A reflective photoelectric sensor 817 and a second hydraulic buffer 818 are installed on the upper and lower sides of the pick-up and place frame 813. The reflective photoelectric sensor 817 corresponds to the position of the approach post 816. The contact of the second hydraulic buffer 818 is used to contact the surface of the auxiliary plate 815. The signal of the reflective photoelectric sensor 817 can control the pick-up cylinder 802 to stop. The upper and lower reflective photoelectric sensors 817 limit the vertical movement stroke. The lower reflective photoelectric sensor 817 makes the two vertical clamps 811 just at the position of picking up the small clasp or small snap ring K. The upper reflective photoelectric sensor 817 makes the bottom of the two vertical clamps 811 just above the top of the cone sleeve 1. The second hydraulic buffer 818 can reduce the vibration generated when the pick-up cylinder 802 stops.

[0051] The assembly mechanism works as follows: the pick-and-place mechanism 8 picks up the small circlip or small snap ring K from the small circlip or snap ring feeding fixture and moves it to the loading position; at the loading position, the pick-and-place mechanism 8 feeds the small circlip or small snap ring K into the conical sleeve 1 held by the conical sleeve clamping mechanism 2; the conical sleeve moving mechanism 3 drives the conical sleeve 1 to move vertically downward to the unloading position so that the diameter reduction cover 106 of the conical sleeve 1 covers the top of the car dust cover 9; the first-stage umbrella cover pushing and pulling mechanism 5 drives the umbrella cover component 4 to move directly above the conical sleeve 1 so that the positioning sleeve 401 of the umbrella cover component 4 is fitted onto the top of the conical sleeve 1; the second-stage umbrella cover pushing and pulling mechanism 6 drives multiple arc-shaped paddles 402 to simultaneously apply force to the small circlip or small snap ring K on the conical sleeve 1, pushing the small circlip or small snap ring K from the top of the conical sleeve 1 to the bottom so that the small circlip or small snap ring K slides into the upper annular groove 91 provided on the upper part of the car dust cover 9. At this point, the small retaining ring or small retaining spring K has been assembled onto the dust cover 9. After the umbrella cover component 4 returns to its position, the cone sleeve clamping mechanism 2 clamps the cone sleeve 1 again, and the cone sleeve 1 returns from the unloading position to the loading position under the cone sleeve movement mechanism 3.

[0052] The gripper cylinder 201 adopts existing technology; the conical sleeve movement cylinder 301, the first-stage umbrella sleeve push-pull cylinder 501, and the second-stage umbrella sleeve push-pull cylinder 602 all adopt general-purpose cylinders; the material picking cylinder 802 and the material discharging cylinder 803 both adopt general-purpose cylinders, with the material picking cylinder 802 having a long stroke and the material discharging cylinder 803 having a short stroke of 5mm; the swing cylinder 805 and the parallel gripper 806 both adopt existing technology; the reflective photoelectric sensor 817 and the laser detector 706 both adopt existing technology.

[0053] Figure 2 , Figure 4 , Figure 5 In the diagram, the cone sleeve 1 located at the bottom represents the simulated position, and the straight line passing through the cone sleeve 1 represents the beam emitted by the laser detector 706; Figure 2 , Figure 11 and Figure 13 In the middle, the cylinder rod of the picking cylinder 802 is disconnected from the top of the picking slide seat 804, indicating that the stroke of the picking cylinder 802 is sufficient; Figure 7 In the diagram, Q represents the ball head of the product, and the dust cover 9 is installed on the ball head Q; Z represents the spherical seat on the tooling used to fix the ball head Q of the product. Figure 11 and Figure 13 In the middle, the swing cylinder 805 and the parallel gripper 806 located below are simulated positions.

Claims

1. An assembly mechanism for a small retaining ring or retaining spring suitable for automotive dust covers, characterized in that... include: A conical sleeve is used to receive a small retaining ring or a small retaining spring, and to expand the small retaining ring or small retaining spring to fit into the upper annular groove provided on the upper part of the car dust cover. The bottom of the conical sleeve is designed to cover the reduced diameter cover at the top of the car dust cover. The conical sleeve has a conical head. A conical sleeve clamping mechanism is used to clamp the conical sleeve so that the axial direction of the conical sleeve is aligned with the vertical direction; The cone sleeve movement mechanism is used to drive the cone sleeve clamping mechanism to move the cone sleeve vertically to the loading position or the unloading position. When the cone sleeve moves vertically upward to the loading position, the cone sleeve receives a small retaining ring or a small retaining spring. When the cone sleeve moves vertically downward to the unloading position, the diameter reduction cover covers the top of the car dust cover. The umbrella cover component is used to gradually push the small retaining ring or small retaining spring of the conical sleeve into the upper annular groove provided on the upper part of the car dust cover after the conical sleeve moves vertically downward to the unloading position. The umbrella cover component has a positioning sleeve and multiple arc-shaped paddles. The positioning sleeve is adapted to the conical head. The multiple arc-shaped paddles are arranged in sequence to form an umbrella cover with a circular radial cross section. The lower part of the umbrella cover is tapered inward. Multiple annular grooves are distributed axially on the outer peripheral wall of the umbrella cover. Elastic rings for binding the arc-shaped paddles are embedded in the annular grooves. The first-level umbrella cover push-pull mechanism is used to push the umbrella cover component to the top of the cone sleeve after the cone sleeve moves vertically downward to the unloading position, so that the positioning sleeve is fitted onto the cone head. The secondary umbrella cover push-pull mechanism is used to make multiple arc-shaped paddles simultaneously apply force to the small retaining ring or small retaining spring on the cone sleeve, and push the small retaining ring or small retaining spring from the upper part of the cone sleeve to the bottom so that the small retaining ring or small retaining spring slides into the upper annular groove provided on the upper part of the car dust cover. The picking and placing mechanism is used to pick up the small retaining ring or small retaining spring and place the picked-up small retaining ring or small retaining spring on the conical sleeve.

2. The assembly mechanism for a small retaining ring or retaining spring suitable for an automotive dust cover according to claim 1, characterized in that... The conical sleeve is mainly composed of a conical head, a clamping part, a conical middle part, a waist-shaped part, a straight lower part, and a diameter-reducing cover, which are integrally connected from top to bottom. The small end of the conical head is a free end for receiving a small retaining ring or a small retaining spring. The large end of the conical head is connected to the top of the clamping part, and the bottom end of the clamping part is connected to the small end of the conical middle part. The diameters of the large end of the conical head, the clamping part, and the small end of the conical middle part are the same. The diameters of the large end of the conical middle part, the two ends of the waist-shaped part, and the lower part of the straight cylinder are the same. The top of the diameter-reducing cover has a rounded transition, and the top of the diameter-reducing cover extends downward to provide a conical positioning part for inserting into the central hole of the car dust cover.

3. The assembly mechanism for a small retaining ring or retaining spring suitable for an automotive dust cover according to claim 2, characterized in that... The conical sleeve clamping mechanism mainly consists of a gripper cylinder. Both gripping arms of the gripper cylinder are L-shaped. The two gripping arms rotate 90 degrees inwards parallel to each other to clamp the conical sleeve, and rotate 90 degrees outwards parallel to each other to release the conical sleeve. Each end of the two gripping arms of the gripper cylinder is equipped with a positioning chuck. The two positioning chucks face each other. Two symmetrical positioning grooves are formed on the peripheral wall of the clamping part. The bottom of the positioning groove is flat, and the groove wall gradually widens from the inside out. The head of the positioning chuck is designed to fit the shape of the positioning groove. When the two gripping arms of the gripper cylinder clamp the conical sleeve, the head of the positioning chuck is embedded in the corresponding positioning groove.

4. The assembly mechanism for a small retaining ring or retaining spring suitable for an automotive dust cover according to claim 3, characterized in that... The conical sleeve motion mechanism mainly consists of a conical sleeve motion cylinder and a conical sleeve motion slide plate. The conical sleeve motion cylinder is installed vertically, with its cylinder rod pointing downwards and connected to the conical sleeve motion slide plate. The gripper cylinder is installed on the conical sleeve motion slide plate.

5. The assembly mechanism for a small retaining ring or retaining spring suitable for an automotive dust cover according to claim 4, characterized in that... The umbrella cover component mainly consists of an umbrella cover shaft, a cylindrical connecting sleeve, an umbrella cover, and multiple arc-shaped levers. The umbrella cover shaft is vertically arranged and passes through the central through hole of the cylindrical connecting sleeve. A convex ring is provided at the top of the cylindrical connecting sleeve, and an annular groove is provided at the bottom of the cylindrical connecting sleeve. A spring is provided on the upper outer side of the cylindrical connecting sleeve. Two horizontal limiting pins are symmetrically arranged on the outer peripheral wall of the cylindrical connecting sleeve. The umbrella cover is sleeved on the lower part of the cylindrical connecting sleeve. The spring is restrained between the convex ring and the top of the umbrella cover. The diameter of the upper part of the inner hole of the umbrella cover is smaller than the diameter of the lower part of the inner hole. An annular groove is left between the lower part of the inner hole of the umbrella cover and the outer peripheral wall of the cylindrical connecting sleeve. The umbrella cover has a vertical elongated through hole on its peripheral wall corresponding to the horizontal limiting pin. The horizontal limiting pin passes through the corresponding vertical elongated through hole. The bottom of the umbrella cover shaft is hollow to form the positioning sleeve. The top of the arc-shaped lever is integrally provided with a joint portion with an axial cross-section of L. The horizontal section of the joint portion is embedded in the annular groove, and the vertical section of the joint portion is embedded in the annular gap. The top surface of the arc-shaped lever is in close contact with the bottom surface of the umbrella cover. The lower part of the arc-shaped lever is inclined inward. The umbrella cover and the cone sleeve are coaxial. The umbrella cover is used to push the small retaining ring or small retaining spring received by the cone sleeve from top to bottom into the upper annular groove provided on the upper part of the car dust cover.

6. The assembly mechanism for a small retaining ring or retaining spring suitable for an automobile dust cover according to claim 5, characterized in that... The primary umbrella cover push-pull mechanism mainly consists of a primary umbrella cover push-pull cylinder and a primary umbrella cover push-pull slide. The primary umbrella cover push-pull cylinder is installed vertically, with its cylinder rod pointing downwards and connected to the top of the primary umbrella cover push-pull slide. The secondary umbrella cover push-pull mechanism is fixed on the primary umbrella cover push-pull slide.

7. The assembly mechanism for a small retaining ring or retaining spring suitable for an automobile dust cover according to claim 6, characterized in that... The secondary umbrella cover push-pull mechanism mainly consists of a secondary umbrella cover push-pull base, a secondary umbrella cover push-pull cylinder, and an umbrella cover mounting plate. The secondary umbrella cover push-pull base is fixed to the primary umbrella cover push-pull slide. The secondary umbrella cover push-pull cylinder is vertically installed above the secondary umbrella cover push-pull base via a connecting rod. The cylinder rod of the secondary umbrella cover push-pull cylinder faces downward and is symmetrically connected to two push rods via an adapter plate. The bottom of the push rods passes through the secondary umbrella cover push-pull base and the primary umbrella cover push-pull slide and is fixedly connected to the umbrella cover mounting plate. The top of the cylindrical connecting sleeve is fixedly connected to the bottom of the umbrella cover mounting plate. The top of the umbrella cover shaft passes through the primary umbrella cover push-pull slide and is fixedly connected to the bottom of the secondary umbrella cover push-pull base.

8. The assembly mechanism for a small retaining ring or retaining spring suitable for an automotive dust cover according to claim 7, characterized in that... The assembly mechanism also includes an assembly frame. The conical sleeve movement cylinder is vertically mounted on the back of the assembly frame. The assembly frame has a vertical stroke hole. The cylinder rod of the conical sleeve movement cylinder is connected to the back of the conical sleeve movement slide plate through a connecting block. The connecting block moves within the vertical stroke hole. The first-stage umbrella sleeve push-pull cylinder is vertically mounted on the top of the assembly frame. A first linear guide pair is provided between the front of the assembly frame and the back of the first-stage umbrella sleeve push-pull slide plate and the back of the conical sleeve movement slide plate. A first hydraulic buffer is provided at the bottom of the conical sleeve movement slide plate. A collision block corresponding to the first hydraulic buffer is provided on the front of the assembly frame. When the conical sleeve moves vertically downward to the unloading position, the first hydraulic buffer contacts the collision block. A laser detector for detecting the presence of the conical sleeve is installed at the bottom of the gripper cylinder and in the area corresponding to the unloading position on the front of the assembly frame.

9. An assembly mechanism for a small retaining ring or retaining spring suitable for an automotive dust cover according to claim 1 or 2, characterized in that... The pick-and-place mechanism includes a pick-and-place base, a pick-and-place cylinder, a place-and-place cylinder, a pick-and-place sliding seat, a swing cylinder, and a parallel gripper. The pick-and-place base is fixed, and the pick-and-place sliding seat is arranged directly below the pick-and-place base. The pick-and-place cylinder is vertically mounted on the pick-and-place base, with its cylinder rod pointing downwards and connected to the top of the pick-and-place sliding seat. The place-and-place cylinder is vertically mounted on the pick-and-place base, with its cylinder rod pointing downwards and connected to an upper push rod. The top of the pick-and-place sliding seat... The part is provided with a lower push rod corresponding to the position of the upper push rod. The swing cylinder is horizontally installed at the bottom of the pick-and-place sliding seat. The output shaft of the swing cylinder faces downward and is connected to the parallel gripper through an adapter plate. The parallel gripper is horizontally arranged. Each of the two clamping arms of the parallel gripper is provided with a vertical chuck at its bottom end. The two vertical chucks radially support or disengage the small retaining ring or small retaining spring. The top of the conical head is symmetrically provided with two chuck receiving notches for accommodating the vertical chucks.

10. An assembly mechanism for a small retaining ring or retaining spring suitable for an automotive dust cover according to claim 9, characterized in that... The bottom of the vertical clamp is integrally provided with a flange. When the two vertical clamps support the small retaining ring or small retaining spring, the small retaining ring or small retaining spring is located above the flange. The small retaining ring or small retaining spring picking and placing mechanism also includes a picking and placing frame. The picking and placing base is fixed on the upper front of the picking and placing frame. A second linear guide pair is provided between the back of the picking and placing sliding seat and the front of the picking and placing frame. An auxiliary plate is connected to the bottom of the picking and placing sliding seat. An approach post is provided on the rear end of the auxiliary plate. A reflective photoelectric sensor and a second hydraulic damper are installed on the upper and lower sides of the picking and placing frame. The reflective photoelectric sensor corresponds to the position of the approach post. The contact of the second hydraulic damper is used to contact the surface of the auxiliary plate.

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