Round spring collar assembling equipment

Abstract

The invention relates to the technical field of part mounting tools, in particular to round spring retainer ring assembling equipment. The round spring retainer ring assembling equipment comprises a retainer ring pushing mechanism, the retainer ring pushing mechanism comprises a base and more than two thrust pieces distributed along the circumference of the base, one end of each thrust piece is hinged to the base, the other end of each thrust piece forms a pushing end, a clamping groove is formed in each pushing end, and the orientation of a notch of each clamping groove is consistent with the direction of pushing a round spring retainer ring by the corresponding thrust piece. A pushing wall used for pushing the circular spring retainer ring is arranged in the clamping groove, and the clamping groove is used for allowing the circular spring retainer ring to enter when the circular spring retainer ring is assembled so that the pushing end of the thrust piece can be clamped on the part, facing the thrust piece, of the outer surface of the circular spring retainer ring, and the thrust piece can be kept in pushing fit with the circular spring retainer ring. Due to the limitation of the clamping groove, the pushing piece can be kept in pushing fit with the circular spring clamping ring, so that the pushing piece is not easy to slip relative to the circular spring clamping ring, and reliable use is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of parts installation tools, and in particular to a circular spring clamp ring assembly device. Background Art

[0002] The main structure of the conical bushing for the power system inflatable cabinet is the epoxy resin coated copper conductor. In order to adapt to different cabinet structures and current levels, the conductor of the conical bushing has various size requirements, but the size of its epoxy resin body is consistent. In order to ensure the versatility of the product and the convenience of production, the conductor adopts an assembled structure. The cylindrical conductor is inserted into the epoxy resin body, and then the circular spring clamp is inserted into the groove on the conductor to achieve the fixation of the conductor and the epoxy resin body. The conductor should be avoided from being damaged during the assembly of the clamp. The cross section of the circular spring clamp is circular, and an opening is provided on it. The clamp is not a complete circle structure but has a fracture, so that the clamp can be elastically deformed. By stretching the clamp, the clamp is deformed outward and put on the conductor. The clamp enters the groove of the conductor and retracts to limit the position of the conductor relative to the epoxy resin body.

[0003] Existing clamping ring assembly equipment, such as a clamping ring assembly tool disclosed in the Chinese utility model patent with authorization announcement number CN201856077U, includes a clamping ring guide device and a clamping ring pushing mechanism. The clamping ring pushing mechanism includes a first base and four thrust plates. The four thrust plates are evenly distributed along the circumference of the base. The first base is connected to the bottom of the piston rod of the cylinder. The first base is provided with a lug, and the upper part of the thrust plate is hinged on the corresponding lug. When in use, the clamping ring guide device is placed on the workpiece, and the clamping ring is put on the clamping ring guide device. Driven by the cylinder, the first base moves downward, so that the lower part of the thrust plate is abutted against the clamping ring guide device and moves downward along the clamping ring guide device, thereby pushing the clamping ring downward, and finally pushing the clamping ring into the clamping groove of the corresponding workpiece.

[0004] The above-mentioned clamp ring assembly equipment uses thrust plates that can be folded and opened to push the clamp ring. The thrust plates are separated from each other and can swing. The part of the lower end of the thrust plate used to push the clamp ring is a plane. The thrust plate has a relatively large thrust force on the clamp ring. When used to push the circular spring clamp ring, the lower end plane of the thrust plate forms a line contact with the outer surface of the circular spring clamp ring. The fit is not reliable enough and is easily affected by the manufacturing and installation accuracy of the thrust plate and the position of the circular spring clamp ring, resulting in slippage, which causes inconvenience in use. Summary of the invention

[0005] The object of the present invention is to provide a circular spring clamp ring assembly device to solve the problem that the thrust plate and the clamp ring are easy to slip off when the circular spring clamp ring is assembled by the current clamp ring assembly device.

[0006] The technical solution of the circular spring collar assembly device of the present invention is: A circular spring clamp assembly device includes a clamp pushing mechanism, which includes a base and more than two thrust plates distributed along the circumference of the base, one end of the thrust plate is hinged on the base, and the other end forms a push end, the push end is provided with a clamping groove, the groove opening of the clamping groove is in the same direction as the thrust plate pushes the circular spring clamp, a push wall for pushing the circular spring clamp is provided in the clamping groove, and the clamping groove is used for the circular spring clamp to enter when assembling the circular spring clamp so that the push end of the thrust plate is clamped on a part of the outer surface of the circular spring clamp facing the thrust plate to maintain the push cooperation between the thrust plate and the circular spring clamp.

[0007] Beneficial effect: The present invention improves on the basis of the clamping ring assembly equipment in the prior art, so that the pushing end of the thrust plate is provided with a locking groove. When assembling the circular spring clamping ring, the pushing end of the thrust plate can be locked on a part of the outer surface of the circular spring clamping ring facing the thrust plate, and a part of the circular spring clamping ring enters the locking groove of the thrust plate, and the pushing wall in the locking groove pushes the circular spring clamping ring to move. Due to the limitation of the locking groove, the thrust plate and the circular spring clamping ring can be kept in a pushing fit, so that the thrust plate is not easy to slip relative to the circular spring clamping ring, which is conducive to reliable use.

[0008] Furthermore, the inner edge of the slot of the locking slot is lower than the outer edge of the slot in the slot depth direction.

[0009] Furthermore, the positioning groove includes two opposite groove side walls arranged at an angle and the two groove side walls are inclined toward the side where the groove opening is located, and the pushing wall includes the two groove side walls.

[0010] Furthermore, the positioning groove includes a groove bottom wall, which is a plane and connected to the two groove side walls.

[0011] Further, it is defined that each thrust plate is arranged around the center line, the inner side surface of the thrust plate faces the center line and the outer side surface faces away from the center line, the inner edge of the slot of the positioning groove is connected to the inner side surface of the thrust plate, and the outer edge of the slot of the positioning groove is spaced apart from the outer side surface of the thrust plate.

[0012] Furthermore, the clamping ring pushing mechanism includes a ring-shaped elastic retaining member, and the elastic retaining member is clamped on each thrust piece to maintain the relative position of each thrust piece.

[0013] Furthermore, the pushing end of each thrust piece has a folded state in which it is folded together under the action of the elastic retaining member, and an open state in which it is opened when pushing the circular spring collar.

[0014] Furthermore, the circular spring retaining ring assembly equipment includes a guide cover, which has a part for being sleeved on a workpiece for assembling the circular spring retaining ring. The guide cover is provided with a guiding cone surface for the circular spring retaining ring to be sleeved and to guide the circular spring retaining ring to deform when the thrust plate pushes the circular spring retaining ring.

[0015] Furthermore, the circular spring collar assembly device comprises a support column having a portion for extending into an inner hole of a workpiece to support the workpiece.

[0016] Furthermore, the circular spring clamp ring assembly equipment includes a frame, on which is installed a driving device for driving the clamp ring pushing mechanism to move, a limit plate is provided on the base of the clamp ring pushing mechanism, and a stop platform is provided on the frame for cooperating with the limit plate to limit the moving stroke of the clamp ring pushing mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a circular spring collar assembly device according to an embodiment of the present invention when a workpiece is installed; Figure 2 for Figure 1 Schematic diagram of a circular spring collar assembly device; Figure 3 for Figure 2 A schematic diagram of the clamp ring pushing mechanism; Figure 4 for Figure 3 A partial enlarged view of point A in the figure.

[0018] In the figure: 100, circular spring collar; 200, conductor; 201, slot; 300, insulating body; 1. Frame; 2. Cylinder; 3. Base; 4. Thrust plate; 41. Positioning groove; 42. Inner groove side wall; 43. Outer groove side wall; 5. Elastic retainer; 6. Upper limit pin; 7. Lower limit pin; 8. Guide cover; 9. Pillar; 10. Limit plate; 11. Stop platform. DETAILED DESCRIPTION

[0019] The circular spring clamp ring assembly device of the present invention is provided with a clamping groove at the top pushing end of the thrust plate, and the thrust plate is clamped on the circular spring clamp ring by the clamping groove, so that the thrust plate is not easy to slip off relative to the circular spring clamp ring.

[0020] Embodiment of the circular spring collar assembly device of the present invention: like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the circular spring clamp assembly equipment includes a clamp pushing mechanism, which includes a base 3 and thrust plates 4 distributed along the circumference of the base 3. One end of the thrust plate 4 is hinged on the base 3 and the other end forms a pushing end. The pushing end is provided with a positioning groove 41. The groove opening of the positioning groove 41 is in the same direction as the direction in which the thrust plate 4 pushes the circular spring clamp 100. A pushing wall for pushing the circular spring clamp 100 is provided in the positioning groove 41. The positioning groove 41 is used for allowing the circular spring clamp 100 to enter when assembling the circular spring clamp 100 so that the pushing end of the thrust plate 4 is clamped on a part of the outer surface of the circular spring clamp 100 facing the thrust plate 4 to maintain the pushing cooperation between the thrust plate 4 and the circular spring clamp 100.

[0021] The workpiece that needs to be assembled with the circular spring collar 100 in this embodiment is a conical sleeve for an electric power system gas cabinet. The conical sleeve includes a conductor 200 and an insulating body 300. The conductor 200 and the insulating body 300 adopt an assembled structure. The insulating body 300 is made of epoxy resin. The insulating body 300 has a through center hole. The conductor 200 penetrates from one end of the center hole of the insulating body 300 and exits from the other end. One end of the conductor 200 is located in the center hole of the insulating body 300 and is stopped in the insertion direction by a limiting shoulder in the center hole of the insulating body 300. In the direction opposite to the insertion direction, it is necessary to install the circular spring collar 100 from one end of the conductor 200 extending out of the center hole of the insulating body 300, and use the circular spring collar 100 to be stuck in the clamping groove 201 of the conductor 200 and form a stop limit match with the insulating body 300, so as to ensure that the conductor 200 and the insulating body 300 are relatively fixed.

[0022] The circular spring collar assembly device is used to assemble the circular spring collar 100 into the clamping groove 201 of the conductor 200. The circular spring collar assembly device includes a frame 1 and a guide cover 8. A support 9 is provided at the bottom of the frame 1. The support 9 is used to support the conductor 200. The guide cover 8 is used to cover the conductor 200. The guide cover 8 is provided with a conical surface, and the circular spring collar 100 is sleeved on the conical surface. By moving the thrust piece 4 downward, the circular spring collar 100 is pushed downward and the circular spring collar 100 is deformed outward under the guidance of the guide cover 8. After the circular spring collar 100 passes over the guide cover 8 downward, it is just contracted and clamped into the clamping groove 201 of the conductor 200. The cross section of the circular spring collar 100 is circular. When the thrust piece 4 pushes the circular spring collar 100 downward, the innermost part of the circular spring collar 100 contacts the outer wall of the guide cover 8, while the part above the contact part is an arc surface and does not contact the outer wall of the guide cover 8. The upper part of the circular spring collar 100 can be stuck in the clamping groove 41 of the thrust piece 4, that is, the pushing end of the thrust piece 4 can be stuck on a part of the outer surface of the circular spring collar 100 facing the thrust piece 4 through the clamping groove 41. The upper arc surface of the outer surface of the circular spring clamp 100 faces the thrust piece 4, and the pushing wall of the positioning groove 41 has parts located on the inner and outer sides of the upper arc top of the circular spring clamp 100. The limiting fit is reliable to prevent the clamp from slipping out of the positioning groove 41. In this way, the circular spring clamp 100 is pushed to move by the pushing wall in the positioning groove 41. Restricted by the positioning groove 41, the thrust piece 4 and the circular spring clamp 100 can be kept in a pushing fit, so that the thrust piece 4 is not easy to slip relative to the circular spring clamp 100, which is conducive to reliable use.

[0023] The thrust piece 4 is arranged vertically, the upper end of the thrust piece 4 is hinged with the base 3, and the lower end constitutes a top thrust end. The thrust piece 4 includes a main piece body and a hinged ear arranged at the upper end of the main piece body, and a clamping groove 41 is arranged at the lower end of the main piece body. The hinged ear at the upper end of the thrust piece 4 cooperates with the lug on the base 3 to form a hinged connection, and the lower end of the thrust piece 4 is suspended downward. Each thrust piece 4 is evenly distributed in the circumferential direction, and it is defined that each thrust piece 4 is arranged around the center line and the center line is the center line of the mechanism of the clamp ring pushing mechanism, and the center line of the base 3 is colinear with the center line of the mechanism. There are multiple thrust pieces 4, and the main piece body of the thrust piece 4 is an arc-shaped piece body, and the projection of the arc-shaped piece body in the up and down direction is a fan-shaped, the inner arc surface of the arc-shaped piece body is a concave arc surface, and the outer arc surface is a convex arc surface. The inner side surface of the main piece body of the thrust piece 4 faces the center line of the mechanism, and the outer side surface faces away from the center line of the mechanism. The locking groove 41 is arranged on the end face of the lower end of the main plate body of the thrust plate 4, and the slot of the locking groove 41 faces downward. The locking groove 41 is a through groove and passes through the two side surfaces in the circumferential direction of the lower end of the thrust plate 4, so that the circular spring retaining ring 100 can be locked into the locking groove 41 of each thrust plate 4.

[0024] With the side close to the center line of the mechanism as the inner side and the side away from the center line of the mechanism as the outer side, the slot of the positioning slot 41 has an inner slot edge close to the center line of the mechanism and an outer slot edge away from the center line of the mechanism, both of which are arcuate edges, and the inner slot edge of the positioning slot 41 is lower than the outer slot edge in the slot depth direction, and the inner slot edge is closer to the bottom of the positioning slot 41 than the outer slot edge. When the thrust plate 4 pushes the circular spring retaining ring 100, the inner slot edge of the positioning slot 41 is inserted into the gap between the circular spring retaining ring 100 and the outer wall of the guide cover 8, while the outer slot edge is lower, which can avoid inserting too deep into the gap, and avoid affecting the circular spring retaining ring 100 from naturally coming out of the positioning slot 41 after being pushed into place. In other embodiments, when the depth of the positioning slot is shallow, the inner slot edge of the positioning slot can also be made flush with the outer slot edge.

[0025] The positioning groove 41 includes two groove side walls arranged at an angle, the two groove side walls are respectively an inner groove side wall 42 and an outer groove side wall 43, the inner groove side wall 42 and the outer groove side wall 43 are both inclined and inclined toward the side where the groove opening is located, the groove side wall is inclined downward, and the two groove side walls are arranged in a V shape, and the two groove side walls are used to form a push wall, and the two groove side walls are used to form a push fit on the inner and outer sides of the top of the upper part of the circular spring retaining ring 100, respectively, so that the retaining ring is kept in the positioning groove 41, and can adapt to circular spring retaining rings 100 of different diameters, thereby improving versatility. In other embodiments, the positioning groove can also be set as an arc groove adapted to the circumferential surface of the ring body of the circular spring retaining ring, and the inner wall of the arc groove is an arc surface and constitutes a push wall.

[0026] The positioning groove 41 includes a groove bottom wall, which is a plane and connected to the inner groove side wall 42 and the outer groove side wall 43. The groove bottom wall is the groove bottom of the positioning groove 41, and the inner groove side wall 42 is lower than the outer groove side wall 43. The positioning groove 41 has a flat groove bottom, which is convenient for processing the positioning groove 41 and ensures the strength of the positioning groove 41. The groove bottom of the positioning groove 41 can also be used to form a part of the push wall. In other embodiments, the positioning groove can also be directly set as a V-shaped groove, and the inclined inner and outer groove side walls are connected.

[0027] The inner side of the thrust piece 4 faces the center line of the mechanism and the outer side faces away from the center line of the mechanism. The inner groove side wall 42 of the positioning groove 41 is connected to the inner side of the thrust piece 4, and the inner groove side wall 42 and the inner side are connected to form the inner edge of the groove, that is, the inner edge of the groove of the positioning groove 41 is connected to the inner side of the thrust piece 4, and the outer groove side wall 43 of the positioning groove 41 is connected to the lower end surface of the thrust piece 4 and the connection forms the outer edge of the groove of the positioning groove 41. The outer edge of the groove of the positioning groove 41 is spaced from the outer side of the thrust piece 4, so that the part of the thrust piece 4 corresponding to the inner groove side wall 42 of the positioning groove 41 is thinner and the part corresponding to the outer groove side wall 43 is thicker, so that the corresponding edge of the thrust piece 4 is convenient for the thrust piece 4 to be clamped into the gap between the circular spring retaining ring 100 and the guide cover 8, and the structural strength of the thrust piece 4 is ensured. In other embodiments, the two groove side walls of the positioning groove can also be connected to the inner side and outer side of the thrust piece respectively.

[0028] The clamp ring pushing mechanism includes a ring-shaped elastic retainer 5, which is clamped on each thrust piece 4 to maintain the relative position of each thrust piece 4. The elastic retainer 5 can be a beveled coil spring, which is sleeved on the periphery of each thrust piece 4. When each thrust piece 4 is opened, it expands and deforms outwards to exert a force on each thrust piece 4 to be kept on the guide cover 8 and the circular spring clamp ring 100. In other embodiments, the thrust piece hinge structure in the patent document in the background technology can also be adopted, and a horizontal spring located above the hinge axis is set at the hinge end of the thrust piece. When each thrust piece is opened, the horizontal spring is compressed and exerts a force on the thrust piece, so that the lower end of the thrust piece has a tendency to retract inward. In other embodiments, the elastic retainer can also be an elastic rubber ring.

[0029] In order to limit the elastic retainer 5, an upper limit pin 6 and a lower limit pin 7 are respectively provided on the thrust piece 4. The lower limit pin 7 is arranged near the lower end of the thrust piece 4, and the upper limit pin 6 is arranged in the middle of the thrust piece 4 in the vertical direction. The limit pin is a screw and is threadedly connected to the thrust piece 4. The limit pin protrudes from the outer side of the thrust piece 4. The lower limit pin 7 on each thrust piece 4 can prevent the elastic retainer 5 from falling off. The upper limit pin 6 can prevent the elastic retainer 5 from falling off the thrust piece 4 upward.

[0030] Each thrust piece 4 is equal in size and has a flat lower end. The lower end of the thrust piece 4 is a push end. The push end of each thrust piece 4 has a folded state in which it is folded together under the action of the elastic retaining member 5 and an open state in which it is opened when pushing the circular spring retaining ring 100. In the natural state, the elastic retainer 5 tightens each thrust piece 4 and makes the pushing ends of each thrust piece 4 push against each other and be in a retracted state, so as to adapt to the size of the circular spring collar 100 without outward expansion. In the process of the thrust piece 4 pushing the collar, under the guidance of the conical surface of the guide cover 8, the collar expands and deforms outward, and the pushing ends of each thrust piece 4 separate from each other and are in an open state, adapting to the size of the collar after outward expansion and deformation. After each thrust piece 4 is opened in place, the thrust piece 4 is in a vertical state. At this time, the overhang direction of the thrust piece 4 is parallel to the center axis direction of the collar, and the center axis direction of the collar is the up and down direction. The thrust piece 4 is facing the collar and pushes the collar to move downward, and the force is stable, which is conducive to reliable pushing. In other embodiments, the thrust piece can also be vertical and parallel to the center line of the mechanism in the natural state, and when it is open under force, the thrust piece tilts outward a little to ensure that it can be pushed to the collar.

[0031] The outer peripheral surface of the upper part of the guide cover 8 is a conical surface for the circular spring collar 100 to be sleeved and guide the circular spring collar 100 to expand and deform outward when the thrust plate 4 pushes the circular spring collar 100. The upper part of the guide cover 8 is also provided with an upward blind hole. The lower part of the guide cover 8 is a thin-walled cylinder for sleeved on the upper part of the conductor 200. The inner diameter of the cylinder is adapted to the outer diameter of the upper part of the conductor 200. After the guide cover 8 is installed on the conductor 200, the lower edge of the guide cover 8 is just above the clamping groove 201 of the conductor 200. The guide cover 8 is used to guide the circular spring collar 100 to deform, so as to prevent the circular spring collar 100 from scratching the surface of the conductor 200 and protect the conductor 200. In other embodiments, when the surface quality requirements of the workpiece are not high, the thin-walled cylinder covering the workpiece may not be provided, and the guide cover may be fixed to the upper end of the workpiece. After being guided by the conical surface of the guide cover, the retaining ring passes over the guide cover, so that the retaining ring is clamped to the outer peripheral surface of the workpiece and continues to move downward under the push of the thrust plate.

[0032] The support 9 has a portion for extending into the inner hole of the conductor 200 to support the conductor 200. The inner hole of the conductor 200 is a blind hole and faces downward when the collar is assembled. The support 9 is vertically arranged up and down, and the end surface of the upper end of the support 9 abuts against the bottom of the inner hole of the conductor 200, which is conducive to reliable support and avoids deformation of the conductor 200. In other embodiments, if the strength of the workpiece is sufficient, the support can also directly support the bottom end surface of the workpiece.

[0033] The frame 1 is provided with a driving device for driving the clamp ring pushing mechanism to move. The driving device is a cylinder 2. The end of the piston rod of the cylinder 2 is fixedly connected to the center hole of the base 3. The frame 1 includes a bottom plate, a vertical plate and a top plate. The pillar 9 is fixed on the bottom plate. The lower end of the vertical plate is fixed to the bottom plate and the upper end is fixed to the top plate. The driving device is installed on the top plate. The clamp ring pushing mechanism is located below the top plate and above the pillar 9. A limit plate 10 is fixed on the base 3 of the clamp ring pushing mechanism. A stopper 11 is provided on the vertical plate of the frame 1 for cooperating with the limit plate 10 to limit the movement of the clamp ring pushing mechanism. When the cylinder 2 drives the clamp ring pushing mechanism to move down to the position, the clamp ring enters the clamping groove 201 of the conductor 200, and the limit plate 10 presses on the stopper 11 to limit the clamp ring pushing mechanism from moving downward to avoid damage to the equipment. In other embodiments, the position of the clamp ring pushing mechanism can also be sensed by a sensor, and the cylinder action can be controlled by the signal of the sensor, thereby controlling the movement of the clamp ring pushing mechanism.

[0034] When in use, firstly, the conductor 200 is passed through the insulating body 300. The internal limiting structure of the insulating body 300 is used to locate the position of the conductor 200. Then, the conductor 200 is placed on the pillar 9. The pillar 9 supports and locates the conductor 200 to prevent the conductor 200 from falling off or changing its position during the process of pressing the clamp ring down. Then, the guide cover 8 is put on the conductor 200 to protect its surface. The open clamp ring is put on the conical part of the upper end of the guide cover 8. At this time, the clamp ring will stay in the middle position of the cone. Then, the cylinder 2 is started to drive the thrust piece 4 to move downward. During this process, the thrust pieces 4 originally tightened by the elastic retainer 5 will open outward along the outer surface of the cone when they contact the guide cover 8. When they contact the open collar, the clamping groove 41 at the lower end of the thrust piece 4 will clamp the collar and push it to move downward along the outer surface of the cone of the guide cover 8. While the collar moves downward, it will be slowly stretched open by the cone of the guide cover 8 until it reaches the cylindrical part at the lower end of the guide cover 8, and continue to move downward to the end of the cylindrical part, and then break away from the guide cover 8, slide into the clamping groove 201 of the conductor 200, and tighten and clamp the conductor 200. Start the cylinder 2 again, the piston rod is retracted, driving the thrust piece 4 back to its original position, and the conical sleeve is removed from the support 9, and the assembly of its collar is completed.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A circular spring collar assembly device, comprising a collar pushing mechanism, the collar pushing mechanism comprising a base and two or more thrust plates distributed along the circumference of the base, one end of the thrust plate is hinged on the base, and the other end forms a push end, wherein the feature is that: A locking groove is provided at the pushing end, and the groove opening of the locking groove is in the same direction as the direction in which the thrust plate pushes the circular spring retaining ring. A pushing wall for pushing the circular spring retaining ring is provided in the locking groove. The locking groove is used for allowing the circular spring retaining ring to enter when assembling the circular spring retaining ring so that the pushing end of the thrust plate is clamped on a part of the outer surface of the circular spring retaining ring facing the thrust plate to maintain the pushing cooperation between the thrust plate and the circular spring retaining ring.

2. The circular spring collar assembly device according to claim 1, characterized in that: The inner edge of the slot of the locking slot is lower than the outer edge of the slot in the slot depth direction.

3. The circular spring collar assembly device according to claim 1 or 2, characterized in that: The positioning groove includes two opposite groove side walls which are arranged at an angle and the two groove side walls are inclined toward the side where the groove opening is located, and the pushing wall includes the two groove side walls.

4. The circular spring collar assembly device according to claim 3 is characterized in that: The positioning groove comprises a groove bottom wall, which is a plane and connected to the two groove side walls.

5. The circular spring collar assembly device according to claim 1 or 2, characterized in that: Each thrust piece is arranged around the center line, the inner side of the thrust piece faces the center line and the outer side faces away from the center line, the inner edge of the slot of the positioning groove is connected to the inner side of the thrust piece, and the outer edge of the slot of the positioning groove is spaced apart from the outer side of the thrust piece.

6. The circular spring collar assembly device according to claim 1 or 2, characterized in that: The clamp ring pushing mechanism comprises a ring-shaped elastic retaining member, and the elastic retaining member is clamped on each thrust piece to maintain the relative position of each thrust piece.

7. The circular spring collar assembly device according to claim 6, characterized in that: The pushing end of each thrust piece has a folded state in which it is folded together under the action of the elastic retaining member, and an open state in which it is opened when the circular spring clamp ring is pushed.

8. The circular spring collar assembly device according to claim 1 or 2, characterized in that: The circular spring collar assembly device comprises a guide cover having a part for sleeved on a workpiece for assembling the circular spring collar, and the guide cover is provided with a guide cone surface for sleeved circular spring collar and guiding the circular spring collar to deform when the thrust plate pushes the circular spring collar.

9. The circular spring collar assembly device according to claim 1 or 2, characterized in that: The circular spring collar assembly device comprises a support column, wherein the support column has a portion for extending into an inner hole of a workpiece to support the workpiece.

10. The circular spring collar assembly device according to claim 1 or 2, characterized in that: The circular spring clamp ring assembly equipment includes a frame, on which a driving device for driving the clamp ring pushing mechanism to move is installed. A limit plate is provided on the base of the clamp ring pushing mechanism, and a stop platform is provided on the frame for cooperating with the limit plate to limit the moving stroke of the clamp ring pushing mechanism.

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