Automatic assembly method and device for proportional solenoid valve snap spring

Abstract

The application discloses a kind of proportion electromagnetic valve snap spring automatic assembly method and equipment, it is related to mechanical equipment technical field, to solve the assembly problem of snap spring and the component to be assembled.Its technical scheme main point is: including the distribution of snap spring delivery direction in turn is set up, assembly structure and for placing the component to be assembled limit material part, distribution is used to the snap spring of stacked distribution and is supplied with assembly structure one by one grabbing, assembly structure includes with production line equipment fixed connection grabbing installation part and be in the lifting portion below limit material part, grabbing installation part is used to grab snap spring and keep snap spring to be assembled with the component to be assembled in inclined state, grabbing installation part can reciprocate along vertical and horizontal direction, grabbing installation part and lifting portion can be simultaneously applied to the snap spring with bottom end to the slot of snap spring in vertical and opposite extrusion force.The application can be assembled in the snap spring slot of the component to be assembled as needed by the setting of structure.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, and more specifically, to an automatic assembly method and equipment for a proportional solenoid valve retaining ring. Background Technology

[0002] Auxiliary assembly mechanisms are typically used to assist the assembly process, making the assembly process more stable and of better quality.

[0003] The function of a proportional solenoid valve in an automobile is to control the valve core opening through electromagnetic force, thereby achieving continuous and precise regulation of fluid media (such as oil and gas). It is often used in scenarios that require fine control of flow or pressure. Its core function is to continuously regulate flow: Unlike on / off solenoid valves, proportional solenoid valves can adjust the valve core opening according to the strength of electrical signals (such as voltage or current) to achieve linear control of flow or pressure. Application scenarios: Commonly found in automatic transmissions (regulating hydraulic pressure), suspension systems (controlling damping), braking systems (regulating brake force distribution), and other fields that require dynamic adjustment.

[0004] Automotive proportional solenoid valves come in a variety of types and functions. During the production of automotive proportional solenoid valves, the assembly process... Figure 4 , Figure 10 and Figure 13 When assembling the components shown, the retaining ring usually needs to be installed in the retaining ring groove on the top of the component. Since the diameter of the tube into which the retaining ring slides is slightly larger than the outer diameter of the retaining ring after the force is reduced, the process of installing this type of retaining ring into the retaining ring groove is usually quite laborious. Therefore, it is usually done manually. However, manual assembly is usually limited by the operator's experience, and the installation process also requires a long time to overcome the elastic force generated by the retaining ring with different deformations. Therefore, installing this type of retaining ring and component usually easily leads to hand fatigue for workers. At the same time, since the component to be assembled is made of aluminum alloy, if the retaining ring cannot be fully compressed and deformed, the retaining ring is prone to scraping against the inner wall of the component during assembly, causing some metal shavings to fall into the interior of the component, thus affecting the overall assembly quality and subsequent use of the component. Therefore, it is necessary to set up a structure to assist in the assembly process of the retaining ring and component shown in the figure.

[0005] Therefore, a new solution is needed to address this problem. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an automatic assembly method and equipment for proportional solenoid valve snap rings.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an automatic assembly equipment for proportional solenoid valve retaining rings, characterized in that: it includes a material distribution section, an assembly structure, and a material limiting section for placing the component to be assembled, arranged sequentially along the retaining ring delivery direction; the material distribution section is used to distribute stacked retaining rings for the assembly structure to grasp one by one; the assembly structure includes a grasping mounting section fixedly connected to the production line equipment and a lifting section located below the material limiting section; the grasping mounting section is used to grasp the retaining ring and hold it in an inclined state for assembly with the component to be assembled; the grasping mounting section can reciprocate along the vertical and horizontal directions; the grasping mounting section and the lifting section can simultaneously apply vertical and opposing compressive forces to the retaining rings whose bottom ends pass into the retaining ring groove.

[0008] The present invention is further configured such that: the gripping mounting part includes grippers that can move closer or further apart in the horizontal direction, and the bottom surface of each gripper is fixedly connected to a gripping rod that passes through small holes on both sides of the opening of the retaining spring. It also includes a vertically adjustable pushing rod, and the bottom surface of the pushing rod is fixedly connected to an arc-shaped abutting block that abuts against the inner side wall of the retaining spring. The bottom surface of the grippers is kept lower than the bottom surface of the pushing rod.

[0009] The present invention is further configured such that: the gripping mounting part further includes a dual-axis linear drive module fixedly connected to the production line equipment; a first connecting plate is fixedly connected to the drive end of the dual-axis linear drive module; a first slide cylinder arranged vertically in the driving direction and a vertically arranged guide rail are fixedly connected to the first connecting plate; a guide seat is slidably connected to the guide rail; a first connecting block is fixedly connected to the guide seat; a second connecting plate is fixedly connected to the drive ends of the first connecting block and the first slide cylinder; a first gripper cylinder is fixedly connected to the bottom of the second connecting plate; the gripper of the first gripper cylinder can reciprocate in the horizontal direction; the gripper is fixedly connected to the gripper of the first gripper cylinder; and the second connecting plate... A first linear bearing is fixedly connected to the connecting plate and sleeved on the outside of the pusher rod. An adjustment hole is vertically opened through the first connecting block. An external threaded tube sleeved on the outside of the pusher rod is slidably connected in the adjustment hole. A first nut threadedly connected to the external threaded tube is fixedly connected to the top of the first connecting block. A threaded section is provided on the pusher rod near the top. A second nut that abuts against the top of the external threaded tube is threadedly connected to the threaded section. A spring is sleeved on the pusher rod inside the external threaded tube. A top sleeve and a bottom sleeve that abut against the two ends of the spring are sleeved on the pusher rod. The bottom sleeve abuts against the solid part of the pusher rod on its bottom side. The top sleeve can slide relative to the pusher rod.

[0010] The invention is further configured such that: the material distribution unit includes a first support frame and a second support frame fixedly connected to the production line equipment; a second sliding cylinder with a horizontally oriented driving direction is fixedly connected to the top of the first support frame; a second connecting block and a material distribution plate are fixedly connected to the side wall and driving end of the second sliding cylinder, respectively; a vertically oriented connecting piece is fixedly connected to the second connecting block; a guide rod with its bottom surface abutting against the top surface of the material distribution plate is fixedly connected to the connecting piece; the thickness of the connecting piece is less than the opening of the retaining spring; the cross-sectional shape of the guide rod is consistent with the cross-sectional shape of the inner side of the retaining spring and guides the retaining spring to slide along its top end to its bottom end; the top of the material distribution plate has an opening that can move with the driving direction of the second sliding cylinder. A limiting groove that slides to the bottom of the guide rod and allows a single retaining ring to pass through is fixedly connected to the second support frame near the top. A third slide cylinder with a vertically oriented drive direction is fixedly connected to the drive end of the third slide cylinder. Three circumferentially distributed push rods are fixedly connected to the top surface of the connecting rod. Several push holes for the push rods to pass through are opened through the inner bottom surface of the limiting groove. A third connecting block is fixedly connected to the second support frame near the top. A second gripper cylinder is fixedly connected to the third connecting block. The gripper of the second gripper cylinder can slide back and forth in the horizontal direction. V-shaped clamping blocks for holding retaining rings are fixedly connected to the gripper of the second gripper cylinder.

[0011] The invention is further configured such that: the limiting part includes a limiting platform and a third support frame fixedly connected to the production line equipment; the top surface of the limiting platform is fixedly connected with a plurality of limiting sleeves with top openings for vertical insertion of the component to be assembled; the cavity of the limiting sleeves extends vertically through the limiting sleeves; the top end of the component to be assembled protrudes from the limiting sleeves; a fourth slide cylinder with a vertically driven direction is fixedly connected to the third support frame; a third gripper cylinder is fixedly connected to the driving end of the fourth slide cylinder; the two grippers of the third gripper cylinder can slide back and forth horizontally; each gripper of the third gripper cylinder is fixedly connected with a limiting clamping block; a plurality of limiting slots are provided on the side where the two limiting clamping blocks are in contact for abutting against the outer wall of the component to be assembled.

[0012] The invention is further configured such that: the lifting part includes a fourth support frame for fixed connection with the production line equipment; a fixing plate for fixed connection with the production line equipment is fixedly connected to the top of the fourth support frame; a first telescopic drive member arranged vertically in the driving direction is fixedly connected to the fourth support frame; a first sliding seat is fixedly connected to the driving end of the first telescopic drive member; symmetrically arranged guide rods are fixedly connected to the first sliding seat; a plurality of second linear bearings sleeved on the outside of the guide rods are fixedly connected to the fixing plate; a second sliding seat is fixedly connected to the top of the guide rods; a second telescopic drive member arranged vertically in the driving direction is fixedly connected to the bottom of the second sliding seat; the driving end of the second telescopic drive member is at the top and fixedly connected to a vertically arranged extrusion rod; a first clearance hole for the extrusion rod to pass through is opened through the second sliding seat; a second clearance hole for the extrusion rod to pass through is opened through the limiting platform; the central axes of the first clearance hole, the second clearance hole, and the limiting sleeve cavity are all collinear.

[0013] The present invention is further configured as: an assembly method for an automatic assembly equipment for proportional solenoid valve retaining rings, used in the aforementioned automatic assembly equipment for proportional solenoid valve retaining rings, comprising:

[0014] S1: With the help of the material distribution section, the snap ring is positioned and in a state that can be grasped by the gripping and mounting section;

[0015] S2: During the gripping process of the gripping and mounting part, the retaining ring is in an inclined state with the open end lower than the other side, and the gripping part delivers the gripped retaining ring to the material limiting part where the component to be assembled is installed.

[0016] S3: Under the action of the gripping and mounting part, the gripping circlip is gradually brought closer to the circlip groove of the part to be installed;

[0017] S4: The gripping and mounting part first moves downwards to insert the bottom circlip into the circlip groove. With the drive of the gripping and mounting part, the gripped circlip moves horizontally towards the bottom circlip, inserting a part of the bottom circlip into the circlip groove.

[0018] S4: With the combined action of the gripping mounting part and the lifting part, the retaining ring passing through S4 is simultaneously subjected to opposing pressures, pressing the retaining ring into the retaining ring groove, releasing the restricting force of the gripping mounting part on the retaining ring, and removing the gripping mounting part from the part to be assembled to complete the assembly of the retaining ring.

[0019] In summary, the present invention has the following beneficial effects:

[0020] The material separating section can separate stacked snap rings one by one, placing each snap ring in a position that is easy for the assembly structure to grasp. This allows the assembly structure to grasp the snap rings and assemble them with the parts to be assembled. The assembly structure includes a gripping mounting section fixedly connected to the production line equipment and a lifting section located below the limiting material section. The gripping mounting section is used to grip the snap rings and keep them in an inclined state for assembly with the parts to be assembled. The gripping mounting section can slide back and forth in the vertical and horizontal directions. The gripping mounting section and the lifting section can simultaneously apply vertical and opposing compressive forces to the snap rings whose bottom ends pass into the snap ring grooves. Under the action of the opposing compressive forces, the inclined snap rings will gradually return to the upright position and be installed in the corresponding snap ring grooves. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 for Figure 2 Enlarged view of point B in the middle;

[0024] Figure 4 for Figure 2 Enlarged view of point C in the middle;

[0025] Figure 5 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0026] Figure 6 for Figure 5 Enlarged view at point D;

[0027] Figure 7 for Figure 6 Enlarged view at point E in the middle;

[0028] Figure 8 Cross-sectional view of the present invention Figure 1 ;

[0029] Figure 9 for Figure 8 Enlarged view at point F;

[0030] Figure 10 Cross-sectional view of the present invention Figure 2 ;

[0031] Figure 11 for Figure 10 Enlarged view of point G in the middle;

[0032] Figure 12 for Figure 10 Enlarged view of point H in the middle;

[0033] Figure 13 for Figure 12 Enlarged view of point I in the middle;

[0034] Figure 14 Cross-sectional view of the present invention Figure 3 ;

[0035] Figure 15 for Figure 14 A magnified view of point J in the middle.

[0036] In the diagram: 1. Component to be assembled; 2. Snap ring; 3. Snap ring groove; 4. Gripper; 5. Grip rod; 6. Push rod; 7. Arc-shaped clamping block; 8. Dual-axis linear drive module; 9. First connecting plate; 10. First slide cylinder; 11. Guide rail; 12. Guide seat; 13. First connecting block; 14. Second connecting plate; 15. First gripper cylinder; 16. First linear bearing; 17. Adjustment hole; 18. External threaded tube; 19. First nut; 20. Threaded section; 21. Second nut; 22. Spring; 23. Top sleeve; 24. Bottom sleeve; 25. First support frame; 26. Second support frame; 27. Second slide cylinder; 28. Second connecting block; 29. ​​Material distribution plate; 30. 31. Connecting plate; 32. Guide rod; 33. Limiting groove; 34. Third slide cylinder; 35. Connecting column; 36. Push rod; 37. Pushing hole; 38. Third connecting block; 39. Second gripper cylinder; 40. V-shaped clamping block; 41. Limiting platform; 42. Third support frame; 43. Limiting sleeve; 44. Fourth slide cylinder; 45. Third gripper cylinder; 46. Limiting clamping block; 47. Limiting slot; 48. Fourth support frame; 49. Fixing plate; 50. First telescopic drive component; 51. First sliding seat; 52. Guide rod; 53. Second linear bearing; 54. Second sliding seat; 55. Second telescopic drive component; 56. Extrusion rod; 57. First clearance hole; 58. Second clearance hole. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0038] An automatic assembly device for proportional solenoid valve snap rings, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 10 and Figure 13As shown, the assembly includes a material distribution section, an assembly structure, and a material limiting section for placing the component 1 to be assembled, arranged sequentially along the delivery direction of the retaining spring 2. The material distribution section is used to distribute the stacked retaining springs 2 and allow the assembly structure to grasp them one by one. The material distribution section can separate the stacked retaining springs 2 one by one and make each retaining spring 2 in a state that is convenient for the assembly structure to grasp, so that the assembly structure can grasp the retaining spring 2 and assemble it with the component 1 to be assembled. The assembly structure includes a gripping mounting section fixedly connected to the production line equipment and a lifting section located below the material limiting section. The gripping mounting section is used to grip the retaining spring 2 and keep the retaining spring 2 in an inclined state for assembly with the component 1 to be assembled. The gripping mounting section can slide back and forth in the vertical and horizontal directions. The gripping mounting section and the lifting section can simultaneously apply vertical and opposing squeezing forces to the retaining spring 2 whose bottom end passes into the retaining spring groove 3. Under the action of the opposing squeezing forces, the inclined retaining spring 2 will gradually return to the upright state and be installed in the corresponding retaining spring groove 3.

[0039] like Figures 1-7 As shown, the gripping and mounting part includes grippers 4 that can move closer or further apart horizontally. The bottom surfaces of the grippers 4 are all fixedly connected by welding to gripping rods 5 that pass through small holes on both sides of the opening of the retaining spring 2. After the gripping rods 5 apply force to the small holes on both sides of the opening of the retaining spring 2, the opening of the retaining spring 2 gradually narrows, and the overall outer diameter of the retaining spring 2 decreases. This allows the retaining spring 2 to pass over the solid part of the component 1 to be assembled and slide to the retaining spring groove 3 to be assembled, achieving stable assembly between the retaining spring 2 and the component 1. It also includes a vertically adjustable pusher rod 6. The bottom surface of the spring clip 2 is fixedly connected by welding to an arc-shaped abutting block 7 that abuts against the inner side wall of the spring clip 2. The bottom surface of the gripper 4 is kept lower than the bottom surface of the pusher rod 6. During the gripping and mounting part grips the spring clip 2, the bottom surface of the gripper 4 and the bottom surface of the pusher rod 6 abut against the top side of the spring clip 2. Under the action of the gripper 4 and the pusher rod 6, the spring clip 2 will be in an inclined state and the lower part of the spring clip 2 will be on the side closer to the gripper rod 5, so that the gripping and mounting part can grip the spring clip 2 and install it between the part to be assembled 1 in an inclined state.

[0040] like Figures 4-9As shown, the gripping installation unit also includes a dual-axis linear drive module 8 fixedly connected to the production line equipment. Two support rods are fixedly connected to the bottom of the dual-axis linear drive module 8 by bolts. The support rods are fixed to the production line equipment by bolts. A first connecting plate 9 is fixedly connected to the drive end of the dual-axis linear drive module 8. Under the drive of the dual-axis linear drive module 8, the first connecting plate 9 can be driven to move horizontally and vertically. A first slide cylinder 10 with a vertically oriented drive direction and a vertically oriented guide rail 11 are fixedly connected to the first connecting plate 9 by bolts. A guide seat 12 is slidably connected to the guide rail 11. The first connecting block 13 is fixedly connected to the first slide cylinder 10 by bolts. The first connecting block 13 and the driving end of the first slide cylinder 10 are both fixedly connected to the second connecting plate 14 by bolts. Under the joint action of the guide rail 11, guide seat 12 and the first connecting block 13, the first slide cylinder 10 drives the second connecting plate 14 to slide, which stabilizes and limits the sliding process of the second connecting plate 14. This ensures that the sliding process of the second connecting plate 14 is more stable. Under the drive of the first slide cylinder 10, the pusher rod 6 will also slide downward and apply a vertical downward force to the snap ring 2 during the installation process. Under the joint action of the lifting part, the snap ring 2 is stably pushed into and installed in the snap ring groove 3.

[0041] like Figures 4-9As shown, the bottom of the second connecting plate 14 is fixedly connected to the first gripper cylinder 15 by bolts. The gripper of the first gripper cylinder 15 can slide back and forth in the horizontal direction. The pinching claw 4 is fixedly connected to the gripper of the first gripper cylinder 15 by bolts. Under the drive of the first gripper cylinder 15, the pinching claw 4 can be driven to slide back and forth in the horizontal direction, so that the pinching claw 4 can grasp and release the snap ring 2. The second connecting plate 14 is fixedly connected to the first linear bearing 16 sleeved on the outside of the pusher rod 6 by snap-fit. The first connecting block 13 is... An adjustment hole 17 is vertically through-hole, and an externally threaded tube 18, sleeved on the outside of the pusher rod 6, is slidably connected inside the adjustment hole 17. The top of the first connecting block 13 is fixedly connected to the first nut 19, which is threadedly connected to the externally threaded tube 18, by welding. During the rotation of the externally threaded tube 18, it will move relative to the first nut 19, so as to achieve stable adjustment of the vertical height of the externally threaded tube 18 and ensure that the position of the externally threaded tube 18 can meet the user's needs. The pusher rod 6 near the top is provided with a threaded section 20, and the threaded section 20 is threadedly connected to the externally threaded tube. A second nut 21 abuts at the top of the threaded tube 18. A spring 22 is fitted on the push rod 6 located inside the threaded tube 18. A top sleeve 23 and a bottom sleeve 24 are fitted on the push rod 6, abutting against the two ends of the spring 22. The bottom sleeve 24 abuts against the solid part of the push rod 6 on its bottom side. The top sleeve 23 can slide relative to the push rod 6. The first linear bearing 16 can provide stable guidance and assistance in the process of adjusting the push rod 6, making the process of adjusting the push rod 6 more stable. With the combined action of the second nut 21 and the threaded section 20, the push rod can be adjusted. The stable adjustment of the relative position of the push rod 6 with respect to the external threaded tube 18 allows for stable adjustment of the position of the push rod 6 when adjusting the external threaded tube 18, ensuring that the position of the push rod 6 meets the usage requirements. When the second nut 21 gradually approaches the top of the threaded section 20, the elastic force generated by the elastically deformed spring 22 will apply force to the top sleeve 23 and the bottom sleeve 24, thereby allowing the push rod 6 to move downward. This allows the spring 22 to assist in the adjustment process of the push rod 6, making the adjustment of the position of the push rod 6 more convenient.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 10 and Figure 11As shown, the material distribution unit includes a first support frame 25 and a second support frame 26 fixedly connected to the production line equipment. The first support frame 25 and the second support frame 26 are fixed to the production line equipment by bolt locking. A second slide cylinder 27 with a horizontally oriented drive direction is fixedly connected to the top of the first support frame 25 by bolt locking. A second connecting block 28 and a material distribution plate 29 are fixedly connected to the side wall and drive end of the second slide cylinder 27 by bolt locking, respectively. A vertically oriented connecting piece 30 is fixedly connected to the second connecting block 28 by welding. The guide rod 31 is fixedly connected to the top surface of the distribution plate 29 by means of a bottom surface abutting against the top surface of the distribution plate 29. The cross-sectional area of ​​the guide rod is smaller than the cross-sectional area of ​​the inner side of the snap ring 2, and the thickness of the connecting piece 30 is smaller than the opening of the snap ring 2. This setting allows the connecting piece 30 to connect to the guide rod 31 while also allowing the snap ring 2 to slide along the guide rod 31, ensuring that the guide rod 31 can stably guide the material distribution process. The snap ring 2 can be placed on the guide rod 31 by manual stacking or by using a vibrating plate to distribute the material and guide it to be set on the guide rod 31 one by one, thus realizing the installation between the snap ring 2 and the distribution part.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 10 and Figure 11As shown, the cross-sectional shape of the guide rod 31 is consistent with the cross-sectional shape of the inner side of the snap ring 2, and guides the snap ring 2 to slide along its top to its bottom. Under the joint limitation of the guide rod 31 and the connecting piece 30, the snap ring 2 can only slide along the length direction of the guide rod 31 and cannot rotate, so that the guide rod 31 can stably guide the snap ring 2. The top of the distribution plate 29 is provided with a limiting groove 32 that can slide directly below the guide rod 31 with the drive of the second slide cylinder 27 and allows a single snap ring 2 to pass through. The cross-sectional shape of the limiting groove 32 is consistent with the snap ring 2, and the inner wall circumference is greater than the outer wall circumference of the snap ring 2. This setting ensures that the snap ring 2 can be stably inserted into the limiting groove 32. At the same time, under the limiting effect of the limiting groove 32, the snap ring 2 can be prevented from rotating in the limiting groove 32, ensuring that the snap ring 2 in the limiting groove 32 can move in a relatively stable direction. The orientation of the material limiting groove 32 facilitates the subsequent retrieval of the retaining spring 2 within the material limiting groove 32. When the second slide cylinder 27 drives the material limiting groove 32 on the material dividing plate 29 to move directly below the guide rod 31, the individual retaining spring 2 and the stacked retaining spring 2 above it will be pushed by gravity to slide down the guide rod 31 and fall into the material limiting groove 32. The top surface of the individual retaining spring 2 placed in the material limiting groove 32 is flush with the top surface of the material dividing plate 29, preventing the retaining spring 2 above it from falling further. The material dividing plate 29 is continued to be driven, causing the material limiting groove 32 to shift from below the guide rod 31 and the stacked retaining spring 2 on the guide rod 31 to be blocked by the remaining area of ​​the top surface of the material dividing plate 29. This allows the retaining spring 2 to be restricted on the guide rod 31. During the movement of the material dividing plate 29, the individual retaining spring 2 in the material limiting groove 32 is moved, realizing the one-by-one distribution of the stacked retaining spring 2.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 10 and Figure 11As shown, a third slide cylinder 33, vertically oriented in the driving direction, is fixedly connected to the second support frame 26 near the top by bolts. A connecting column 34 is fixedly connected to the driving end of the third slide cylinder 33 by bolts. A connecting plate is fixedly connected to the bottom side of the connecting column 34 by welding. The connecting plate and the driving end of the third slide cylinder 33 are fixedly connected by bolts, ensuring stable driving of the connecting column 34 during operation. Three circumferentially distributed push rods 35 are fixedly connected to the top surface of the connecting column 34 by welding. Several push holes 36 are drilled through the inner bottom surface of the limiting groove 32 for the push rods 35 to pass through. The push holes 36 provide clearance for the push rods 35 to push the retaining spring 2, allowing the push rods 35 to stably contact the retaining spring 2 and push it upwards. A third connecting block 37 is fixedly connected to the second support frame 26 near the top by bolts. A second gripper cylinder 38 is fixedly connected to block 37 by bolts. The grippers of the second gripper cylinder 38 can slide back and forth in the horizontal direction. Each gripper of the second gripper cylinder 38 is fixedly connected to a V-shaped clamping block 39 for clamping the snap ring 2 by bolts. The snap ring 2 has a ring-like structure. Under the centering effect of the V-shaped clamping jaws on the V-shaped clamping block 39, the V-shaped clamping block 39 can achieve stable centering of the snap ring 2 when clamping it, thus facilitating subsequent handling of the snap ring. The use of 2, under the clamping action of V-shaped clamping block 39, can achieve stable clamping and limiting of the snap ring 2 pushed upward by push rod 35, so that snap ring 2 raised by push rod 35 can be stably suspended at the bottom. The space at the bottom of snap ring 2 makes way for the gripping and mounting part to grip snap ring 2 and push snap ring 2 to tilt, so that snap ring 2 can be stably tilted under the gripping of gripping and mounting part, which makes it convenient for gripping and mounting part to stably assemble snap ring 2 with the part to be assembled 1.

[0045] like Figure 2 , Figure 4 , Figure 10 , Figure 12 , Figure 13 , Figure 14 and Figure 15As shown, the material limiting section includes a material limiting platform 40 and a third support frame 41 for fixed connection with the production line equipment. The material limiting platform 40 and the production line equipment are fixed by bolts, and the third support frame 41 and the production line equipment are also fixed by bolts. Several limiting sleeves 42 with top openings for vertical insertion of the component 1 to be assembled are fixedly connected to the top surface of the material limiting platform 40 by bolts. The component 1 to be assembled can be placed inside the limiting sleeves 42 manually or by a mechanical gripper. The cavity of the limiting sleeves 42 extends vertically... The top of the component to be assembled 1 passes through the limiting sleeve 42, allowing the component to be assembled 1 to be placed vertically into the limiting sleeve 42. Under the action of the limiting sleeve 42, the component to be assembled 1 can be stably limited in its degree of freedom of movement in the vertical downward direction and in the horizontal direction, thus achieving the initial limitation of the component and ensuring that the component can be in a relatively stable position, facilitating the subsequent assembly between the snap ring 2 and the component. A fourth slide cylinder 43 with a vertically oriented driving direction is fixedly connected to the third support frame 41 by bolts. The drive end of cylinder 43 is fixedly connected to a third gripper cylinder 44 by bolts. Under the action of the fourth slide cylinder 43, the third gripper cylinder 44 can be driven to slide vertically back and forth. The third gripper cylinder 44 can move vertically upward away from the part to be assembled 1 and vertically downward towards the part to be assembled 1. The two grippers of the third gripper cylinder 44 can slide horizontally back and forth. Each gripper of the third gripper cylinder 44 is fixedly connected to a limit clamping block 45 by bolts. The side of the two limit clamping blocks 45 that are in contact with each other is provided with a mechanism for contacting the part to be assembled. The limiting slots 46 on the outer wall of component 1 can move the limiting clamping block 45 under the drive of the third clamping claw cylinder 44. During the movement of the limiting clamping block 45, the limiting slots 46 on it will move closer to or away from the component 1 to be assembled, thereby clamping or releasing the component 1 to be assembled. By clamping the component 1 to be assembled, the component 1 to be assembled is fully limited, ensuring that the component 1 to be assembled can be kept in a stable position and stably assembling the snap ring 2 with the component 1 to be assembled, making the assembly process between the snap ring 2 and the component 1 to be assembled more stable.

[0046] like Figure 2 , Figure 4 , Figure 10 , Figure 12 , Figure 13 , Figure 14 and Figure 15As shown, the lifting unit includes a fourth support frame 47 for fixed connection with the production line equipment. A fixing plate 48 for fixed connection with the production line equipment is fixedly connected to the top of the fourth support frame 47. The fixing plate 48 and the fourth support frame 47 are fixed together by bolts. The fixing plate 48 and the production line equipment are also fixed together by bolts. The fourth support frame 47 provides stable support and limits for the remaining parts of the lifting unit, ensuring the overall function of the lifting unit can be stably achieved. A first telescopic drive member 49, vertically oriented in the driving direction, is fixedly connected to the fourth support frame 47 by bolts. The first telescopic drive member 49 is configured as a drive cylinder. The drive end of the first telescopic drive member 49 is fixedly connected to a first sliding seat 50 by bolts. Symmetrically arranged guide rods 51 are fixedly connected to the first sliding seat 50 by bolts. Several second linear bearings 52, sleeved on the outside of the guide rods 51, are fixedly connected to the fixing plate 48. The combined action of the second linear bearings 52 and the guide rods 51 provides stable guidance and limitation for the first telescopic drive member 49 in driving the guide rods 51, making the process smoother. A second sliding seat 53 is fixedly connected to the top of the guide rod 51 by bolts. The first telescopic drive member 49 drives the second sliding seat 53 to achieve the same effect. The moving base 53 is stably adjusted in its vertical position. The bottom of the second sliding base 53 is fixedly connected to a second telescopic drive member 54, which is vertically oriented, by bolts. The second telescopic drive member 54 is a telescopic cylinder. With the help of the first telescopic drive member 49, the vertical height of the second telescopic drive member 54 can be stably adjusted, making the height of the second telescopic drive member 54 more in line with the user's needs. The drive end of the second telescopic drive member 54 is located at the top and is fixedly connected to a vertically oriented extrusion rod 55 by welding. The second sliding base 53 has a first clearance hole 56 through which the extrusion rod 55 passes. The limiting table 40 has a through hole for the extrusion rod. The second clearance hole 57 through which the extrusion rod 55 passes, the first clearance hole 56, the second clearance hole 57 and the central axis of the cavity of the limiting sleeve 42 are all collinear. Under the drive of the second telescopic drive member 54, the extrusion rod 55 can slide back and forth vertically. During the upward movement of the extrusion rod 55, it will move with the help of the first clearance hole 56, the second clearance hole 57 and the cavity of the sleeve to abut against the sliding part inside the component to be assembled and apply an upward force to the sliding part. During the upward movement of the sliding part, it will apply a vertical upward force to the bottom side of the snap ring 2 during the assembly process. Combined with the vertical downward force applied to the snap ring 2 by the gripping mounting part, the snap ring 2 can be stably installed in the snap ring groove 3.

[0047] An assembly method for an automatic assembly equipment for proportional solenoid valve snap rings, such as... Figures 1-15As shown, the use of the above-mentioned automatic assembly equipment for proportional solenoid valve retaining rings includes:

[0048] S1: With the help of the material distribution section, the snap ring 2 is positioned and in a state that can be grasped by the gripping and mounting section;

[0049] S2: During the gripping process of the gripping installation part, the retaining ring 2 is in an inclined state with the open end lower than the other side, and the gripping part delivers the gripped retaining ring 2 to the material limiting part where the component to be assembled 1 is installed.

[0050] S3: Under the action of the gripping and mounting part, the snap ring 2 it grips is gradually brought closer to the snap ring groove 3 of the part to be installed;

[0051] S4: The gripping and mounting part first moves downward and inserts the bottom snap ring 2 into the snap ring groove 3. With the drive of the gripping and mounting part, the gripped snap ring 2 moves horizontally towards the bottom snap ring 2, and inserts a part of the bottom snap ring 2 into the snap ring groove 3.

[0052] S4: With the combined action of the gripping mounting part and the lifting part, the snap ring 2 passing through S4 is simultaneously subjected to opposing pressures, pressing the snap ring 2 into the snap ring groove 3, releasing the restrictive force of the gripping mounting part on the snap ring 2, and removing the gripping mounting part from the assembly part 1 to complete the assembly of the snap ring 2.

[0053] The above description is merely a preferred embodiment of the present invention, and the scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A proportional solenoid valve spring clip automatic assembly apparatus, characterized by: The device comprises a material distributing part, an assembling structure and a material limiting part arranged in sequence along the delivery direction of the clasp (2), the material distributing part is used for distributing the stacked clasp (2) and providing the assembling structure to grab one by one, the assembling structure comprises a grabbing installation part fixedly connected with the production line equipment and a jacking part below the material limiting part, the grabbing installation part is used for grabbing the clasp (2) and holding the clasp (2) to assemble with the component (1) to be assembled in an inclined state, the grabbing installation part can reciprocate along the vertical and horizontal directions, the grabbing installation part and the jacking part can synchronously apply the vertical and opposite extrusion force to the clasp (2) with the bottom end penetrating into the clasp slot (3), the grabbing installation part comprises pinch claws (4) which can approach or move away from each other along the horizontal direction, the bottom surface of the pinch claw (4) is fixedly connected with a pinch rod (5) penetrating into the small holes on both sides of the opening of the clasp (2), and a material pushing pressure rod (6) with adjustable vertical height is further included, the bottom surface of the material pushing pressure rod (6) is fixedly connected with an arc abutting block (7) abutting against the inner side wall of the clasp (2), and the bottom surface of the pinch claw (4) is maintained lower than the bottom surface of the material pushing pressure rod (6); The grabbing installation part further comprises a double-shaft linear drive module (8) fixedly connected with the production line equipment, the driving end of the double-shaft linear drive module (8) is fixedly connected with a first connecting plate (9), the first connecting plate (9) is fixedly connected with a first sliding table cylinder (10) arranged vertically in the driving direction and a guide rail (11) arranged vertically, the guide rail (11) is slidingly connected with a guide seat (12), the guide seat (12) is fixedly connected with a first connecting block (13), the first connecting block (13) and the driving end of the first sliding table cylinder (10) are both fixedly connected with a second connecting plate (14), the bottom of the second connecting plate (14) is fixedly connected with a first clamping jaw cylinder (15), the clamping jaw of the first clamping jaw cylinder (15) can reciprocate along the horizontal direction, and the pinch claw (4) is fixedly connected with the clamping jaw of the first clamping jaw cylinder (15); The material distributing part comprises a first support frame (25) and a second support frame (26) fixedly connected with the production line equipment, the top of the first support frame (25) is fixedly connected with a second sliding table cylinder (27) arranged horizontally in the driving direction, the side wall and the driving end of the second sliding table cylinder (27) are fixedly connected with a second connecting block (28) and a material distributing plate (29) respectively, the second connecting block (28) is fixedly connected with a connecting piece (30) arranged vertically, the connecting piece (30) is fixedly connected with a material guiding rod (31) abutting against the top surface of the material distributing plate (29), the thickness of the connecting piece (30) is smaller than the opening of the clasp (2), and the cross-sectional shape of the material guiding rod (31) is consistent with the cross-sectional shape of the inner side of the clasp (2) and guides the clasp (2) to slide from the top end to the bottom end.

2. The proportional solenoid valve spring clip automatic assembly apparatus according to claim 1, characterized in that: The second connecting plate (14) is fixedly connected with a first linear bearing (16) sleeved outside the pushing pressure rod (6), the first connecting block (13) is vertically provided with an adjusting hole (17), the adjusting hole (17) is slidably connected with an outer threaded tube (18) sleeved outside the pushing pressure rod (6), the top of the first connecting block (13) is fixedly connected with a first nut (19) threadedly connected with the outer threaded tube (18), the pushing pressure rod (6) near the top is provided with a threaded section (20), the threaded section (20) is threadedly connected with a second nut (21) abutting against the top end of the outer threaded tube (18), the pushing pressure rod (6) inside the outer threaded tube (18) is sleeved with a spring (22), the pushing pressure rod (6) is sleeved with a top sleeve (23) and a bottom sleeve (24) abutting against both ends of the spring (22), the bottom sleeve (24) abuts against the solid part of the pushing pressure rod (6) on the bottom side, and the top sleeve (23) can slide relative to the pushing pressure rod (6).

3. The proportional solenoid valve spring clip automatic assembly apparatus according to claim 2, characterized in that: The top of the distribution plate (29) is provided with a material limiting groove (32) capable of sliding to the front of the guide rod (31) under the driving of the second sliding table cylinder (27) and allowing a single clamping spring (2) to pass in, the second support frame (26) near the top is fixedly connected with a third sliding table cylinder (33) vertically arranged in the driving direction, the driving end of the third sliding table cylinder (33) is fixedly connected with a connecting column (34), the top surface of the connecting column (34) is fixedly connected with three pushing rods (35) distributed in the circumferential direction, the inner bottom surface of the material limiting groove (32) is provided with a plurality of pushing holes (36) for the pushing rods (35) to pass in, the second support frame (26) near the top is fixedly connected with a third connecting block (37), the third connecting block (37) is fixedly connected with a second clamping jaw cylinder (38), the clamping jaws of the second clamping jaw cylinder (38) can reciprocally slide in the horizontal direction, and the clamping jaws of the second clamping jaw cylinder (38) are fixedly connected with V-shaped clamping blocks (39) for clamping the clamping spring (2).

4. The proportional solenoid valve spring clip automatic assembly apparatus according to claim 3, characterized in that: The material limiting part comprises a material limiting table (40) and a third support frame (41) fixedly connected with the production line equipment, the top surface of the material limiting table (40) is fixedly connected with a plurality of limiting sleeves (42) with openings at the top and allowing the to-be-assembled component (1) to be placed vertically, the lumen of the limiting sleeve (42) is vertically penetrated, the top end of the to-be-assembled component (1) passes out of the limiting sleeve (42), and the third support frame (41) is fixedly connected with a fourth sliding table cylinder (43) vertically arranged in the driving direction, the driving end of the fourth sliding table cylinder (43) is fixedly connected with a third clamping jaw cylinder (44), the two clamping jaws of the third clamping jaw cylinder (44) can reciprocally slide in the horizontal direction, and the clamping jaws of the third clamping jaw cylinder (44) are fixedly connected with limiting clamping blocks (45), and the abutting sides of the two limiting clamping blocks (45) are provided with a plurality of limiting clamping grooves (46) for abutting against the outer wall of the to-be-assembled component (1).

5. The proportional solenoid valve spring clip automatic assembly apparatus according to claim 4, characterized in that: The jacking part comprises a fourth support frame (47) for fixed connection with the production line equipment, the top of the fourth support frame (47) is fixedly connected with a fixed plate (48) for fixed connection with the production line equipment, a first telescopic driving piece (49) vertically arranged in the driving direction is fixedly connected on the fourth support frame (47), a first sliding seat (50) is fixedly connected on the driving end of the first telescopic driving piece (49), symmetrically arranged guide rods (51) are fixedly connected on the first sliding seat (50), a plurality of second linear bearings (52) are fixedly connected on the fixed plate (48) and are sleeved outside the guide rods (51), a second sliding seat (53) is fixedly connected on the top of the guide rods (51), a second telescopic driving piece (54) vertically arranged in the driving direction is fixedly connected on the bottom of the second sliding seat (53), a vertically arranged extrusion rod (55) is fixedly connected on the driving end of the second telescopic driving piece (54), a first accommodation hole (56) is through-provided on the second sliding seat (53) and is used for the extrusion rod (55) to pass through, a second accommodation hole (57) is through-provided on the limiting material table (40) and is used for the extrusion rod (55) to pass through, the center axes of the first accommodation hole (56), the second accommodation hole (57) and the lumen of the limiting sleeve (42) are collinear.

6. A method of assembling a proportional solenoid valve spring automatic assembly apparatus for use with the proportional solenoid valve spring automatic assembly apparatus of any one of claims 1-5, the method comprising: Comprise: ​ S1: by means of the distribution of the distribution part, so that the clamp spring (2) is in the position and state that can be grabbed by the grabbing installation part; S2: in the process of grabbing the installation part, the clamp spring (2) is in an inclined state with the opening end lower than the other side, and the grabbed clamp spring (2) is delivered to the limiting material part where the component (1) to be assembled is installed by means of the grabbing part; S3: under the action of the grabbing installation part, the clamp spring (2) grabbed by it gradually approaches the clamp spring groove (3) of the installation part; S4: the bottom side of the clamp spring (2) is inserted into the clamp spring groove (3) by the grabbing installation part first towards the bottom, the clamp spring (2) grabbed is moved horizontally towards the clamp spring (2) at the bottom end by the driving of the grabbing installation part, and a part of the clamp spring (2) at the bottom end is inserted into the clamp spring groove (3); S5: by the joint action of the grabbing installation part and the jacking part, the clamp spring (2) after S4 is synchronously pressed towards each other, the clamp spring (2) is pressed into the clamp spring groove (3), the limiting force of the grabbing installation part on the clamp spring (2) is released, and the grabbing installation part is withdrawn from the component (1) to be assembled to complete the assembly of the clamp spring (2).

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