Valve component assembly equipment for valve assembly lines

Abstract

This invention relates to the field of valve processing technology and discloses valve accessory assembly equipment for assembly lines of valves. The equipment includes a base plate, support column, top plate, support plate, clamping rod one, buffer block, gear one, pull rope, clamping plate, push plate, clamping rod two, clamping rod three, movable rod one, movable rod two, extension rod, clamping rod, crossbar one, crossbar two, and crossbar three. This invention is applicable to the installation of handles of different specifications and shapes. Multiple robotic arms can continuously assemble valves on the assembly line. While assembling one valve, a robotic arm on another side can clamp the handle, washer, and nut. During valve assembly, the handle, washer, and nut can be assembled simultaneously. Tightening the nut releases the handle and washer, allowing them to be fully secured by the nut. Furthermore, compared to existing assembly technologies, this invention eliminates the time spent repeatedly picking up and putting away handles, washers, and nuts, resulting in faster assembly speed and higher efficiency.

Description

Technical Field

[0001] This invention relates to the field of valve processing technology, and more specifically to valve component assembly equipment for assembly lines of valves. Background Technology

[0002] A valve mainly consists of a valve body, valve cover, valve core, valve stem, valve seat, seals, and handle. Valve assembly is the final stage of valve manufacturing. Currently, to improve assembly efficiency, most factories use semi-automated assembly lines to assemble valve components sequentially. Handle installation is the final step in valve assembly. To install the handle, first attach it to the valve stem, then attach the washer to the top of the handle, and finally screw the nut onto the valve stem for final securing. This step seems simple, but when dealing with thousands of valves to be assembled, relying solely on manual labor is extremely time-consuming, and manual labor leads to fatigue, significantly reducing assembly efficiency. Existing semi-automated equipment typically assembles the handle, washer, and nut separately, requiring additional time to pick up and drop these components individually. Therefore, to meet the needs of automated production, the inventors invented a valve component assembly device that simultaneously picks up, places, and installs handles, washers, and nuts. Summary of the Invention

[0003] Based on the above problems, the present invention provides valve accessory assembly equipment for assembling valves on a production line. The present invention can continuously assemble valves on the production line. While one robotic arm is assembling the valve, the other robotic arm can complete the gripping of the handle, washer and nut in the same time. The handle, washer and nut can be assembled at the same time, saving the time of picking up and putting away the handle, washer and nut back and forth, which is more efficient.

[0004] To solve the above technical problems, the present invention provides valve accessory assembly equipment for assembly line valves, including a disc-shaped base plate. A rotatable and vertically arranged support column is located at the center of the top of the base plate. A disc-shaped top plate is located on top of the support column. Four hanging rods are evenly arranged along the circumference of the top plate, and the hanging rods are vertically arranged and pass through the thickness direction of the top plate. The hanging rods can move back and forth along the height direction of the support column. A horizontally arranged rectangular support plate is located at the bottom of the hanging rods. A rotary motor is located at the center of the support plate. A rotating rod is located at the bottom of the rotary motor. A disc-shaped rotating block with its bottom extending through the bottom of the support plate is located at the bottom of the rotating block. Two vertically arranged clamping rods are located at the bottom of the rotating block. The two clamping rods are symmetrically arranged relative to the center of the rotating block. Each clamping rod has a buffer groove passing through the bottom of its bottom end on the side facing the other clamping rod. A spring is located at the top of the buffer groove. The bottom of the spring is provided with a buffer block located in a buffer groove. The side of the buffer groove facing the other clamping rod is provided with a rack 1 arranged along the height direction of the clamping rod 1. The side of the buffer block facing the rack 1 is provided with a horizontally arranged assist groove. The end of the assist groove near the rack 1 is provided with a horizontally arranged rotating rod that is inserted into the inner walls of the two sides of the assist groove and can rotate relative to the assist groove. Two gears 1 are sleeved on the outer periphery of the rotating rod. The rotating rod passes through the center of the two gears 1 in sequence. Both gears 1 mesh with the rack 1. A pull rope is wound around the rotating rod between the two gears 1. The top of the end of the assist groove away from the rack 1 is provided with a vertically arranged fixed rod. The end of the assist groove away from the gear 1 is provided with a moving rod that passes through the buffer block away from the rack 1. The free end of the pull rope is connected to the end of the moving rod located in the assist groove. A spring 2 is provided between the end of the moving rod located in the assist groove and the fixed rod. The end of the moving rod away from the spring 2 extends out of the buffer groove and is provided with a clamping piece for clamping nuts.

[0005] The outer wall of the rotating rod is provided with a second gear, which passes through the center of the second gear. Gears third are provided on both sides of the second gear, meshing with it. A connecting rod is provided at the bottom of each gear third, and an elliptical push plate is provided at the bottom of the connecting rod. The connecting rod is connected to the center of both the gear third and the push plate. The gears second, third, and push plate are all embedded in a support plate and can rotate within it. A movable cavity first, extending along the length of the support plate, is provided on the side of the push plate away from the rotating rod. A push rod first, extending along the length of the movable cavity first, is provided within the movable cavity first. A spring third is provided between the end of the push rod first away from the push plate and the end of the movable cavity first away from the push plate. The end of the push rod first near the push plate abuts against the outer wall of the push plate, and this end is an arc surface. A vertical cavity is provided at the bottom of the movable cavity first. The bottom of the straight cavity is provided with a second movable cavity arranged along the length of the first movable cavity. The bottom of the second movable cavity passes through the bottom of the support plate. The bottom of the first push rod is provided with a connecting rod that passes through the vertical cavity. The bottom of the connecting rod is provided with a second push rod located inside the second movable cavity and arranged along the length of the second movable cavity. The two ends of the bottom of the second push rod are respectively provided with a second clamping rod and a third clamping rod, both of which are vertically arranged. The bottom of the second clamping rod and the third clamping rod are respectively provided with a first movable rod and a second movable rod that can move relative to the second clamping rod and the third clamping rod along the height direction of the support column. The first movable rod is located close to the first clamping rod. The bottom end of the first movable rod facing the side where the first clamping rod is located is provided with a horizontally arranged extension rod that extends toward the side of the first clamping rod. The bottom end of the second movable rod facing the side where the first movable rod is located is provided with a horizontally arranged, arc-shaped clamping rod.

[0006] The top of the base plate is provided with a vertically installed support rod. One side wall of the support rod is provided with three horizontal bars, namely, a first horizontal bar, a second horizontal bar, and a third horizontal bar, arranged sequentially from high to low along the height direction of the support rod. The first horizontal bar, the second horizontal bar, and the third horizontal bar are all arc-shaped with their arc centers located on the vertical line of the center of the base plate. Both sides of the first horizontal bar are provided with stop blocks, and the top of the first horizontal bar, the second horizontal bar, and the third horizontal bar are all provided with positioning rods.

[0007] Furthermore, a rotary motor is provided at the bottom of the base plate, and the bottom of the support column passes through the center of the base plate and is connected to the top of the rotary motor.

[0008] Furthermore, the top of the boom is equipped with a telescopic motor located on the top of the top plate.

[0009] Furthermore, the clamping piece has a notch on the side away from the moving rod that can fit against the two connected outer walls of the hexagonal nut.

[0010] Furthermore, the side of the extension rod away from the movable rod has a groove into which the side wall of the washer can be engaged.

[0011] Furthermore, the bottom of the rotating block is provided with a slide rail 1 arranged along the length of one diameter of the rotating block, the top of the clamping rod 1 is provided with a slider 1 located in the slide rail 1, and the side wall of the support plate is provided with a plurality of threaded holes 1 that communicate with the slide rail 1 and are arranged along the length of the slide rail 1. Each threaded hole 1 is provided with a bolt 1 that passes through the threaded hole 1, abuts against the slider 1, and is threadedly connected to the threaded hole 1.

[0012] Furthermore, the bottom of the push rod 2 is provided with a slide rail 2 arranged along the length direction of the push rod 2, and the top of the clamping rod 2 and the clamping rod 3 are both provided with sliders 2 located in the slide rail 2. The side wall of the support plate is provided with multiple threaded holes 2 that communicate with the slide rail 2 and are arranged along the length direction of the slide rail 2. Each threaded hole 2 is provided with a bolt 2 that passes through the threaded hole 2, abuts against the slider 2, and is threadedly screwed into the threaded hole 2.

[0013] Furthermore, both the bottom of the clamping rod 2 and the clamping rod 3 are provided with movable cavities. The top ends of the movable rod 1 and the movable rod 2 are respectively located in the movable cavities of the clamping rod 2 and the clamping rod 3. The inner walls on both sides of the movable cavity are provided with slide rails 3 arranged along the height direction of the clamping rod 2. The side walls on both sides of the top ends of the movable rod 1 and the movable rod 2 are provided with sliders 3 located in the two slide rails 3 respectively. The top end of the slide rail 3 is provided with an oiling hole that passes through the outer wall of the corresponding clamping rod 2 and the clamping rod 3. The outer wall of the clamping rod 2 and the clamping rod 3 is provided with a closed ring that surrounds the corresponding clamping rod 2 and the clamping rod 3 and is threadedly screwed to the outer wall of the corresponding clamping rod 2 and the clamping rod 3.

[0014] Furthermore, the top of each of the first, second, and third crossbars is provided with a slide rail four arranged along the arc direction of the first crossbar. The bottom end of the positioning rod is located inside the slide rail four. The side walls of each of the first, second, and third crossbars are provided with multiple threaded holes three arranged at equal intervals along the arc of the first crossbar and communicating with the slide rail four. Each threaded hole three is provided with a bolt three that passes through the threaded hole three and abuts against the side wall of the positioning rod. The bolt three is threadedly screwed into the threaded hole three.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention is applicable to the installation of handles of different specifications and shapes. Multiple robotic arms can continuously assemble valves on the assembly line. While assembling one valve, the robotic arm on the other side can complete the gripping of the handle, washer, and nut. When assembling the valve, the handle, washer, and nut can be assembled simultaneously. Tightening the nut will release the handle and washer, making it easier for the handle and washer to be completely fixed by the nut. The structure of the buffer block can reduce the operating frequency of the rotary motor and the telescopic motor, and reduce the frequency of the support plate moving up and down. In addition, compared with the existing assembly technology, the present invention saves the time of repeatedly picking up and putting away the handle, washer, and nut, and the assembly speed is faster and the efficiency is higher. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the main view of the present invention;

[0017] Figure 2 This is a top view of the base plate of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the crossbar one of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of gear two and gear three of the present invention;

[0020] Figure 5 This is a top view of the push plate and push rod of the present invention;

[0021] Figure 6 The internal structure of the buffer groove of the present invention is shown in the front view.

[0022] Figure 7 This is a schematic diagram of the structure of the movable cavity in this invention;

[0023] Figure 8 The internal structure of the buffer groove of the present invention is shown in a top view.

[0024] Figure 9 This is a schematic diagram of the structure at the two bolt locations of the present invention;

[0025] The components are as follows: 1. Base plate; 2. Support column; 3. Top plate; 4. Hanging rod; 5. Support plate; 6. Rotary motor II; 7. Rotating rod; 8. Rotating block; 9. Clamping rod I; 10. Buffer groove; 11. Spring I; 12. Buffer block; 13. Rotating rod; 14. Gear I; 15. Pull rope; 16. Fixed rod; 17. Moving rod; 18. Spring II; 19. Clamping plate; 20. Gear II; 21. Gear III; 22. Connecting rod; 23. Push plate; 24. Moving cavity I; 25. Push rod I; 26. Spring III; 27. Vertical cavity; 28. Moving cavity II; 29. ​​Connecting rod; 30. Push rod II; 31. Clamping rod II; 32. Clamping rod 33. Movable rod one; 34. Movable rod two; 35. Extension rod; 36. Clamping rod; 37. Support rod; 38. Crossbar one; 39. Crossbar two; 40. Crossbar three; 41. Stop block; 42. Positioning rod; 43. Rotary motor one; 44. Telescopic motor; 45. Notch; 46. Slot; 47. Slide one; 48. Slider one; 49. Threaded hole one; 50. Bolt one; 51. Slide two; 52. Slider two; 53. Threaded hole two; 54. Bolt two; 55. Movable cavity; 56. Slide three; 57. Slider three; 58. Oil filling hole; 59. Closing ring; 60. Slide four; 61. Threaded hole three; 62. Bolt three. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0027] Example:

[0028] See attached Figure 1 To be continued Figure 9 A valve accessory assembly equipment for assembling valves on a production line includes a disc-shaped base plate 1, which is horizontally arranged. A support column 2 is provided at the center of the top of the base plate 1. The support column 2 is vertically arranged and rotatable. In this embodiment, a rotary motor 43 is provided at the bottom of the base plate 1. The rotary motor 43 is welded to the base plate 1. The bottom of the support column 2 passes through the center of the base plate 1 and is connected to the top of the rotary motor 43. The support column 2 is connected to the output shaft end of the rotary motor 43.

[0029] The top of the support column 2 is provided with a disc-shaped top plate 3, and the support column 2 is welded to the center of the top plate 3. The top of the top plate 3 is provided with four hangers 4 evenly arranged along the circumference of the top plate 3. The hangers 4 are located at the edge of the top plate 3, vertically arranged, and pass through the thickness direction of the top plate 3. The hangers 4 can move back and forth along the height direction of the support column 2. In this embodiment, the top of the hangers 4 is provided with a telescopic motor 44 located at the top of the top plate 3. The hangers 4 are connected to the output shaft end of the telescopic motor 44, and the telescopic motor 44 is welded to the top plate 3.

[0030] The bottom of the boom 4 is provided with a horizontally arranged rectangular support plate 5, which is located below the top plate 3. The support plate 5 contains a second rotary motor 6, and the vertical central axis of the second rotary motor 6 overlaps with the vertical central axis of the support plate 5. The bottom of the second rotary motor 6 is provided with a rotating rod 7 connected to the output shaft end of the second rotary motor 6. The bottom of the rotating rod 7 is provided with a disc-shaped rotating block 8 that extends through the bottom of the support plate 5. The bottom of the rotating block 8 is provided with two vertically arranged clamping rods 9, which are symmetrically arranged with respect to the center of the rotating block 8. To make this device applicable to different types of valves, the bottom of the rotating block 8 in this embodiment is provided with a slide rail 47 arranged along the length of one diameter of the rotating block 8. The top of the clamping rod 9 is provided with a slider 48 located within the slide rail 47 and capable of sliding within the slide rail 47. The side wall of the support plate 5 is provided with multiple threaded holes 49 that communicate with the slide rail 47 and are arranged along the length of the slide rail 47. Each threaded hole 49 has a bolt 50 that passes through the threaded hole 49, abuts against the slider 48, and is threadedly screwed into the threaded hole 49. The distance between the two clamping rods 9 is adjusted by sliding the slider 48, and the clamping rod 9 is fixed by tightening the bolt 50 so that the bolt 50 passes through the threaded hole 49 and firmly abuts against the slider 48.

[0031] Each clamping rod 9 has a buffer groove 10 at its bottom end, passing through the bottom of the clamping rod 9. The buffer groove 10 is located on the side of the clamping rod 9 facing another clamping rod 9. A spring 11 is provided on the top wall of the buffer groove 10, and a buffer block 12 is provided at the bottom of the spring 11, located inside the buffer groove 10. The spring 11 is bonded to both the buffer groove 10 and the buffer block 12. A rack 1 is provided on the side of the buffer groove 10 facing another clamping rod 9, arranged along the height direction of the clamping rod 9. A horizontally arranged assist groove is provided on the side of the buffer block 12 facing the rack 1. A horizontally arranged rotating rod 13 is provided at the end of the assist groove near the rack 1, with both ends inserted into the inner walls of the assist groove and rotatable relative to the assist groove. Two gears 14 are sleeved on the outer periphery of the rotating rod 13. The rotating rod 13 passes through the center of the two gears 14 in sequence. The gears 14 are welded to the rotating rod 13, and both gears 14 mesh with the rack 1. A pull rope 15 is wound around the rotating rod 13 between the two gears 14. One end of the pull rope 15 is bonded to the rotating rod 13, and the other end is a free end. A vertically arranged fixed rod 16 is provided at the top of the end of the transfer groove away from the rack 14. A movable rod 17 is provided at the end of the transfer groove away from the gear 14, passing through the buffer block 12 away from the rack 14. The movable rod 17 can move relative to the buffer block 12 on a horizontal plane. The free end of the pull rope 15 is connected to the end of the movable rod 17 located in the transfer groove, and the pull rope 15 is bonded to the movable rod 17. A second spring 18 is provided between one end of the moving rod 17 located in the assisting groove and the fixed rod 16. The second spring 18 is bonded to both the moving rod 17 and the fixed rod 16. The end of the moving rod 17 away from the second spring 18 extends out of the buffer groove 10 and is provided with a clamping piece 19 for clamping the nut. In order to better clamp the nut, the side of the clamping piece 19 away from the moving rod 17 in this embodiment is provided with a notch 45 that can fit with the two connected outer walls of the hexagonal nut. The center of the notch 45 is provided with an included angle that can fit with the corner of the nut. The side of the clamping piece 19 facing the nut in this embodiment is provided with an anti-slip rubber pad.

[0032] Gear 20 is provided on the outer wall of the rotating rod 7. The rotating rod 7 passes through the center of gear 20 and gear 20 is welded to the rotating rod 7. Gear 3 21 is provided on both sides of gear 20 to mesh with gear 20. A connecting rod 22 is provided at the bottom of gear 3 21. An elliptical push plate 23 is provided at the bottom of the connecting rod 22. The connecting rod 22 is welded to the center of gear 3 21 and push plate 23. Gear 20, gear 3 21 and push plate 23 are all embedded in the support plate 5 and can rotate in the support plate 5. The cavity of push plate 23 in the support plate 5 is a circular cavity with a diameter equal to the length of the major axis of push plate 23.

[0033] A movable cavity 24 is provided on the side of the push plate 23 away from the rotating rod 7, which is arranged along the length of the support plate 5. A push rod 25 is provided in the movable cavity 24, which is arranged along the length of the movable cavity 24. A spring 26 is provided between the end of the push rod 25 away from the push plate 23 and the end of the movable cavity 24 away from the push plate 23. The spring 26 is bonded to both the push rod 25 and the inner wall of the movable cavity 24. The push rod 25 can move back and forth along the length of the movable cavity 24. The end of the push rod 25 near the push plate 23 can extend into the cavity where the push plate 23 is located. The end of the push rod 25 near the push plate 23 abuts against the outer wall of the push plate 23. The end of the push rod 25 near the push plate 23 is an arc surface and the convex surface is set towards the push plate 23.

[0034] The diameter of gear 3 21 is larger than the diameter of gear 2 20. During the maximum number of continuous rotations of gear 2 20, push rod 1 25 is always in contact with the side wall of push plate 23, and the distance that push rod 1 25 moves along the circumference of push plate 23 is less than one-fifth of the circumference of push plate 25.

[0035] The bottom of the first movable cavity 24 is provided with a vertical cavity 27, and the bottom of the vertical cavity 27 is provided with a second movable cavity 28 arranged along the length direction of the first movable cavity 24. The bottom of the second movable cavity 28 passes through the bottom of the support plate 5. The bottom of the first push rod 25 is provided with a connecting rod 29 that passes through the vertical cavity 27. The bottom of the connecting rod 29 is provided with a second push rod 30 located inside the second movable cavity 28 and arranged along the length direction of the second movable cavity 28. The connecting rod 29, the first push rod 25, and the second push rod 30 are integrally manufactured. The bottom of the push rod 2 30 is provided with clamping rod 2 31 and clamping rod 32, which are both vertically arranged. The bottom of clamping rod 2 31 and clamping rod 32 is provided with movable rod 1 33 and movable rod 2 34, which can move relative to the corresponding clamping rod 2 31 and clamping rod 32 along the height direction of the support column 2. Movable rod 1 33 is located close to clamping rod 1 9. The bottom end of movable rod 1 33 facing the side where clamping rod 1 9 is located is provided with a horizontally arranged extension rod 35 extending towards clamping rod 1 9. The two extension rods 35 are used to clamp the washer. In this embodiment, the side of the extension rod 35 away from movable rod 1 33 is provided with a slot 46 into which the side wall of the washer can be inserted. The slot 46 allows the extension rod 35 to clamp the washer without a large clamping force, avoiding excessive force that could cause deformation of the metal washer. The bottom end of the second movable rod 34, facing the side where the first movable rod 33 is located, is provided with a horizontally arranged and arc-shaped clamping rod 36. The two clamping rods 36 are used to clamp the handle, and the concave surface of the clamping rod 36 faces the handle.

[0036] A vertically mounted support rod 37 is provided at the top of the base plate 1, and the bottom of the support rod 37 is welded to the base plate 1. Along the rotation direction of the support column 2, the support rod 37 has three horizontal bars 38, 39, and 40 arranged sequentially from high to low along its height direction. All three horizontal bars are arc-shaped, with their centers located on the vertical line of the center of the base plate 1. The horizontal bars 38, 39, and 40 are integrally manufactured with the support rod 37. Both sides of the horizontal bar 38 have stop blocks 41, which are welded to both sides of the horizontal bar 38. When the center of the nut is located at the center of the horizontal bar 38, the distance between the edge of the stop block 41 and the horizontal bar 38 is greater than the distance between the edge of the nut and the horizontal bar 38. The tops of the horizontal bars 38, 39, and 40 each have a positioning rod 42.

[0037] To make this device applicable to different types of valves, the tops of the first crossbar 38, the second crossbar 39, and the third crossbar 40 in this embodiment are all provided with slide rails 440 arranged along the arc direction of the first crossbar 38. The bottom end of the positioning rod 42 is located inside the slide rails 440. The side walls of the first crossbar 38, the second crossbar 39, and the third crossbar 40 are all provided with multiple threaded holes 361 arranged equidistantly in a square shape along the arc of the first crossbar 38 and communicating with the slide rails 440. The threaded holes 361 are provided with a side opening that passes through the threaded holes 361 and connects to the side of the positioning rod 42. Bolt 362, which abuts against the wall, is threaded into threaded hole 361. When the handle, washer, and nut are placed on the corresponding crossbars 38, 39, and 40, their centers must be located at the center of each crossbar. The centers of crossbars 38, 39, and 40 must be on the same vertical line. Positioning rod 42 then acts as a positioning rod, helping workers quickly place the parts in the correct position. During operation, the worker simply needs to press one end of the part against positioning rod 42 and adjust the part's position so that its center is located at the center of each crossbar. The position of positioning rod 42 can be adjusted to accommodate different models of parts.

[0038] To make this device applicable to different models of accessories, it is necessary to adjust the distance between clamping rod 2 31 and clamping rod 32 for different models of accessories, and also to adjust the distance between clamping rod 2 31 and clamping rod 1 9. Therefore, in this embodiment, a slide rail 2 51 is provided at the bottom of the push rod 2 30 along the length direction of the push rod 2 30. The top of clamping rod 2 31 and clamping rod 32 are provided with slider 2 52 located in the slide rail 2 51. The slider 2 52 is welded to the corresponding clamping rod 2 31 and clamping rod 32. The side wall of the support plate 5 is provided with multiple threaded holes 2 53 that communicate with the slide rail 2 51 and are provided along the length direction of the slide rail 2 51. The threaded hole 2 53 is provided with a bolt 2 54 that passes through the threaded hole 2 53, abuts against the slider 2 52, and is threadedly screwed into the threaded hole 2 53.

[0039] Both clamping rod 2 (31) and clamping rod 3 (32) have a movable cavity 55 at their bottom. The tops of movable rod 1 (33) and movable rod 2 (34) are located within the movable cavities 55 of clamping rod 2 (31) and clamping rod 3 (32) respectively. Movable rod 1 (33) and movable rod 2 (34) can slide back and forth within the movable cavity 55 along the height direction of clamping rod 2 (31). Slide rails 3 (56) are provided on both inner walls of the movable cavity 55 along the height direction of clamping rod 2 (31). Slider blocks 3 (57) are provided on both side walls of the tops of movable rod 1 (33) and movable rod 2 (34), respectively located within the two slide rails 3 (56). Slider blocks 3 (57) are welded to the corresponding movable rod 1 (33) and movable rod 2 (34). The top of slide rail 3 56 is provided with an oiling hole 58 that passes through the outer wall of the corresponding clamping rod 2 31 and clamping rod 3 32. The outer wall of clamping rod 2 31 and clamping rod 3 32 is provided with a closing ring 59 that surrounds the corresponding clamping rod 2 31 and clamping rod 3 32 and is threadedly connected to the outer wall of the corresponding clamping rod 2 31 and clamping rod 3 32. In order to ensure that the movable rod 1 33 and movable rod 2 34 can slide smoothly relative to clamping rod 2 31 and clamping rod 3 32, lubricating oil needs to be added to slide rail 3 56 regularly. When adding lubricating oil, it can be added through the oiling hole 58. When no lubricating oil is added, the closing ring 59 can cover the oiling hole 58 to prevent dust and other debris from entering slide rail 3 56.

[0040] The operating principle of this embodiment is as follows: The device is installed on a valve assembly line. Workers place the handle, washer, and nut at crossbar 38, crossbar 39, and crossbar 40. When the valve requiring the handle is moved to a position adjacent to crossbar 38, clamping rods 9, 31, and 32 at that position clamp the nut, washer, and handle respectively. At this time, the telescopic motor 44 is activated, moving the support plate 5 downwards. Once the handle and washer are both fitted onto the valve stem, the rotary motor 6 is activated, driving the rotating block 8 to rotate. Simultaneously, the telescopic motor... Machine 44 continues to drive the support plate 5 downward. When the rotary motor 6 rotates, gear 20 drives gear 3 21 to rotate, thereby driving the push plate 23 to rotate. The long axis of the elliptical push plate 23 gradually approaches the push rod 25, causing the push plate 23 to push the push rod 25 to move away from the rotating rod 7. This drives the two clamping rods 31 and 32 to release the washers and handles. Even if the handles and washers are not completely lowered at this time, they will fall freely when the clamping rods 31 and 32 release them. At the same time, the telescopic motor 44 drives the support plate 5 downward, and the movable... Rod 1 (33) and movable rod 2 (34) will move upward relative to clamping rod 2 (31) and clamping rod 3 (32) due to obstruction from handles, etc., so they will not hinder clamping rod 2 (31) and clamping rod 3 (32) from moving to the sides. After the rotary motor 2 (6) and telescopic motor 44 work together to drive the nut to screw onto the valve stem, the rotary motor 2 (6) stops running, and the telescopic motor 44 drives the support plate 5 to move upward. At this time, because the clamping plate 19 is in close contact with the nut, clamping rod 1 (9) will move upward, while the buffer block 12 will move downward relative to clamping rod 1 (9). Spring 1 (11) is stretched, and at the same time, gear 1 (14) rotates, driving... Rotating rod 13 rotates, thereby tightening the pull rope 15, which in turn pulls the moving rod 17 toward the clamping rod 9. The moving rod 17 moves toward the clamping rod 9, causing the two clamping plates 19 to briefly loosen the nut. Spring 11 pulls the buffer block 12 upward, and gear 14 rotates in the opposite direction, loosening the pull rope 15. The clamping plates 19 clamp the nut again, and gear 14 rotates forward again. The clamping plates 19 are gradually moved out of the horizontal position where the nut is located in the above manner. At this time, the telescopic motor 44 is turned off, and the height of the support plate 5 is lower than the height of the support plate 5 before the handle is installed.Then, the rotary motor 43 is turned on, driving the support column 2 to rotate. This rotates the support plate 5, with the handle installed, towards the position of the support rod 37. The next robotic arm holding the handle rotates to the installation position, and the installation continues in the same manner. The installed robotic arm moves to the crossbar 38. At this time, the central axis of the crossbar 38 coincides with the central axis of the rotating block 8. The two gripping plates 19 are located below the sides of the crossbar 38, the two extension rods 35 are located below the sides of the crossbar 39, and the two clamping rods 36 are located below the crossbar. Below the sides of the third 40, the telescopic motor 44 drives the support plate 5 to move upward. The top of the clamping plate 19 is blocked by the stop block 41, and the clamping rod 9 moves upward accordingly. Meanwhile, the buffer block 12 moves downward relative to the clamping rod 9, and the spring 11 is stretched. At the same time, the gear 14 rotates, driving the rotating rod 13 to rotate, thereby tightening the pull rope 15, which pulls the moving rod 17 toward the clamping rod 9. The moving rod 17 moves toward the clamping rod 9, causing the two clamping plates 19 to briefly loosen the nuts, and the spring... Spring 11 pulls the buffer block 12 upwards, gear 14 rotates in the opposite direction, releasing the pull rope 15. The clamping plate 19 presses against the stop block 41, and gear 14 rotates forward again. Following this process, the clamping plate 19 is gradually moved upwards from the horizontal position of the stop block 41 until it reaches the horizontal position of the nut. The nut is then moved upwards until it leaves the crossbar 38, at which point the telescopic motor 44 shuts off. At this point, the support plate 5 is at the height before the handle is installed. Then, the rotary motor 6 rotates, driving the push plate 23. The long axis moves away from push rod 25, causing spring 3 26 to push push rod 25 towards the push plate 23, thereby driving the two clamping rods 31 and 32 towards the corresponding washers and handles until they are clamped. When rotary motor 43 drives support column 2 to rotate, the nut, washer, and handle will move away from the positions of crossbar 38, crossbar 39, and crossbar 40 as the robot arm rotates. Since support rod 37 is not positioned in front of the direction of travel, it will not obstruct the handle and washer from leaving.

[0041] The above are embodiments of the present invention. The above embodiments and specific parameters are only for clearly illustrating the invention verification process and are not intended to limit the patent protection scope of the present invention. The patent protection scope of the present invention shall still be determined by its claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the protection scope of the present invention.

Claims

1. Valve accessory assembly equipment for assembling valves on a production line, characterized in that, The system includes a disc-shaped base plate (1), a rotatable and vertically arranged support column (2) at the center of the top of the base plate (1), a disc-shaped top plate (3) at the top of the support column (2), four hanging rods (4) evenly arranged along the circumference of the top plate (3) at the top of the top plate (3), the hanging rods (4) being vertically arranged and passing through the thickness direction of the top plate (3), and the hanging rods (4) being able to move back and forth along the height direction of the support column (2); a horizontally arranged rectangular support plate (5) is provided at the bottom of the hanging rods (4), and a rotary motor (6) located at the center of the support plate (5) is provided inside the support plate (5). The bottom of the rotary motor 2 (6) is provided with a rotating rod (7), and the bottom of the rotating rod (7) is provided with a disc-shaped rotating block (8) that extends through the bottom of the support plate (5). The bottom of the rotating block (8) is provided with two vertically arranged clamping rods 1 (9). The two clamping rods 1 (9) are symmetrically arranged with respect to the center of the rotating block (8). The bottom end of each clamping rod 1 (9) facing the other clamping rod 1 (9) is provided with a buffer groove (10) that passes through the bottom of the clamping rod 1 (9). The top of the buffer groove (10) is provided with a spring 1 (11), and the bottom of the spring 1 (11) is provided with a buffer block located in the buffer groove (10). (12) The buffer groove (10) facing the other clamping rod (9) is provided with a rack (1) arranged along the height direction of the clamping rod (9). The buffer block (12) facing the rack (1) is provided with a horizontally arranged assist groove. The assist groove is provided with a horizontally arranged rotating rod (13) at one end near the rack (1), which is inserted into the inner walls of the two sides of the assist groove and can rotate relative to the assist groove. Two gears (14) are sleeved on the outer periphery of the rotating rod (13). The rotating rod (13) passes through the center of the two gears (14) in sequence. Both gears (14) mesh with the rack (1). The rotating rod (13) between the gears is wound with a pull rope (15). The top of the end of the auxiliary transfer groove away from the rack is provided with a vertically set fixed rod (16). The end of the auxiliary transfer groove away from the gear (14) is provided with a moving rod (17) that passes through the buffer block (12) away from the rack. The free end of the pull rope (15) is connected to the end of the moving rod (17) located in the auxiliary transfer groove. The end of the moving rod (17) located in the auxiliary transfer groove is provided with a spring (18) between the end of the moving rod (17) located in the auxiliary transfer groove and the fixed rod (16). The end of the moving rod (17) away from the spring (18) extends out of the buffer groove (10) and is provided with a clamping piece (19) for clamping the nut. The outer wall of the rotating rod (7) is provided with a second gear (20). The rotating rod (7) passes through the center of the second gear (20). Both sides of the second gear (20) are provided with a third gear (21) that meshes with the second gear (20). The bottom of the third gear (21) is provided with a connecting rod (22). The bottom of the connecting rod (22) is provided with an elliptical push plate (23). The connecting rod (22) is connected to the center of the third gear (21) and the push plate (23). The second gear (20), the third gear (21), and the push plate (23) are all embedded in the support plate (5) and can rotate within the support plate (5). A movable cavity (24) is provided on the side of the push plate (23) away from the rotating rod (7) along the length direction of the support plate (5). A push rod (25) is provided in the movable cavity (24) along the length direction of the movable cavity (24). A spring (26) is provided between the end of the push rod (25) away from the push plate (23) and the end of the movable cavity (24) away from the push plate (23). The end of the push rod (25) near the push plate (23) abuts against the outer wall of the push plate (23). The end of the push rod (25) near the push plate (23) is an arc surface. The bottom of the movable cavity (24) The part is provided with a vertical cavity (27), and the bottom of the vertical cavity (27) is provided with a second movable cavity (28) arranged along the length direction of the first movable cavity (24). The bottom of the second movable cavity (28) passes through the bottom of the support plate (5). The bottom of the push rod (25) is provided with a connecting rod (29) that passes through the vertical cavity (27). The bottom of the connecting rod (29) is provided with a second push rod (30) located in the second movable cavity (28) and arranged along the length direction of the second movable cavity (28). The bottom ends of the second push rod (30) are respectively provided with a clamping rod (31) and a clamping rod (32) that are both vertically arranged. The bottom of the second holding rod (31) and the third clamping rod (32) are respectively provided with a movable rod one (33) and a movable rod two (34) that can move relative to the corresponding clamping rod two (31) and clamping rod three (32) along the height direction of the support column (2). The movable rod one (33) is set close to the clamping rod one (9). The bottom end of the movable rod one (33) facing the side where the clamping rod one (9) is provided with a horizontally arranged extension rod (35) extending towards the side of the clamping rod one (9). The bottom end of the movable rod two (34) facing the side where the movable rod one (33) is located is provided with a horizontally arranged and arc-shaped clamping rod (36). The top of the base plate (1) is provided with a vertically arranged support rod (37). One side wall of the support rod (37) is provided with a horizontal bar one (38), a horizontal bar two (39) and a horizontal bar three (40) arranged sequentially from high to low along the height direction of the support rod (37). The horizontal bar one (38), the horizontal bar two (39) and the horizontal bar three (40) are all arc-shaped and the center of the arc is located on the vertical line where the center of the base plate (1) is located. Both sides of the horizontal bar one (38) are provided with a stop block (41). The top of the horizontal bar one (38), the horizontal bar two (39) and the horizontal bar three (40) are provided with a positioning rod (42).

2. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, The bottom of the base plate (1) is provided with a rotary motor (43), and the bottom of the support column (2) passes through the center of the base plate (1) and is connected to the top of the rotary motor (43).

3. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, The top of the boom (4) is equipped with a telescopic motor (44) located on the top of the top plate (3).

4. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, The clamping piece (19) has a notch (45) on the side away from the moving rod (17) that can fit with the two connected outer walls of the hexagonal nut.

5. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, The extension rod (35) has a slot (46) on the side away from the movable rod (33) for the side wall of the washer to be engaged.

6. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, The bottom of the rotating block (8) is provided with a slide rail (47) arranged along the length of one diameter of the rotating block (8), the top of the clamping rod (9) is provided with a slider (48) located in the slide rail (47), the side wall of the support plate (5) is provided with a plurality of threaded holes (49) that communicate with the slide rail (47) and are arranged along the length of the slide rail (47), and the threaded hole (49) is provided with a bolt (50) that passes through the threaded hole (49), abuts against the slider (48), and is threadedly screwed into the threaded hole (49).

7. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, The bottom of the push rod 2 (30) is provided with a slide rail 2 (51) arranged along the length direction of the push rod 2 (30). The top of the clamping rod 2 (31) and the clamping rod 3 (32) are both provided with a slider 2 (52) located in the slide rail 2 (51). The side wall of the support plate (5) is provided with a plurality of threaded holes 2 (53) that communicate with the slide rail 2 (51) and are arranged along the length direction of the slide rail 2 (51). The threaded hole 2 (53) is provided with a bolt 2 (54) that passes through the threaded hole 2 (53), abuts against the slider 2 (52), and is threadedly screwed into the threaded hole 2 (53).

8. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, Both clamping rod 2 (31) and clamping rod 3 (32) have movable cavities (55) at their bottoms. The tops of movable rod 1 (33) and movable rod 2 (34) are located in the movable cavities (55) of clamping rod 2 (31) and clamping rod 3 (32), respectively. Both sides of the inner wall of the movable cavity (55) are provided with slide rail 3 (56) arranged along the height direction of clamping rod 2 (31). Both sides of the tops of movable rod 1 (33) and movable rod 2 (34) are provided with... Slider three (57) located in two slide rails three (56); the top of the slide rail three (56) is provided with an oiling hole (58) passing through the outer wall of the corresponding clamping rod two (31) and clamping rod three (32); the outer wall of the clamping rod two (31) and clamping rod three (32) is provided with a closed ring (59) that surrounds the corresponding clamping rod two (31) and clamping rod three (32) and is threadedly connected to the outer wall of the corresponding clamping rod two (31) and clamping rod three (32).

9. The valve accessory assembly equipment for assembly line valves according to claim 1, characterized in that, The top of each of the first (38), second (39) and third (40) crossbars is provided with a slide rail four (60) arranged along the arc direction of the first (38). The bottom end of the positioning rod (42) is located inside the slide rail four (60). The side walls of the first (38), second (39) and third (40) crossbars are provided with multiple threaded holes three (61) arranged at equal intervals along the arc of the first (38) crossbar and communicating with the slide rail four (60). The threaded holes three (61) are provided with bolts three (62) that pass through the threaded holes three (61) and abut against the side wall of the positioning rod (42). The bolts three (62) are threadedly screwed into the threaded holes three (61).

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