Elevator hydraulic buffer spring press-fitting device based on assembly robot

Abstract

The invention discloses an elevator hydraulic buffer spring press-fitting device based on an assembly robot, and relates to the field of spring press-fitting, the elevator hydraulic buffer spring press-fitting device comprises a workbench and an annular base fixedly assembled on the upper end face of the workbench, a positioning column is concentrically and fixedly assembled at the center position of the annular base, and the outer surface of the positioning column is fixedly sleeved with a cam; a rotating disc is further rotationally assembled on the outer surface of the positioning column, the rotating disc is located between the cam and the annular base, and a motor is fixedly erected on the outer surface of the positioning column. The end of a piston rod of the buffer can directly penetrate through the center of a compressed spring through the buffer assembly unit and is fixed to a plunger, the compressed spring is automatically assembled on the buffer, manual assembly of the plunger is not needed, and meanwhile potential safety hazards are reduced.

Description

Technical Field

[0001] The invention relates to the field of spring pressing, and in particular to an elevator hydraulic buffer spring pressing device based on an assembly robot. Background Art

[0002] Hydraulic buffers are usually installed directly below the elevator car or the bottom mounting plate. When the car loses control and suddenly drops, the hydraulic buffer can remove part of the impact force of the car, thereby preventing the car from being subjected to a large reaction force. The main structure of the hydraulic buffer is the hydraulic cylinder, the piston inside the hydraulic cylinder, and the piston rod. The liquid medium in the space above and below the piston can flow through the fine channel, and the exposed end of the piston rod is equipped with a plunger. A spring needs to be installed between the plunger and the hydraulic cylinder. The spring mainly plays a resetting role for the displacement of the piston. The plunger and the end of the piston rod are generally assembled by elastic clip limiters or bolted assembly.

[0003] The hydraulic buffer used in elevator cars has a large overall size, so the springs assembled are also large, and the springs have strong elasticity. When assembling the spring between the plunger and the hydraulic cylinder, it is necessary to compress the spring through a press-fitting device, and then put the spring after a part of the compressed stroke on the outside of the piston rod. The plunger is then assembled with the end of the piston rod to release the spring, thus completing the spring press-fitting of a hydraulic buffer. The springs are compressed one by one through the press-fitting device, and then the plunger is assembled manually. Although this assembly method is very stable, it has low assembly efficiency. Moreover, during the manual assembly of the plunger, if the plunger is not completely assembled with the end of the piston rod, the moment the press-fitting device releases the compressed large spring, the reaction force generated will be applied to the plunger, which will directly eject the unassembled plunger. If the plunger is ejected onto a worker, it is easy to cause physical injury. The semi-automatic assembly through manual and press-fitting devices also has a large safety hazard. Summary of the Invention

[0004] The object of the present invention is to provide an elevator hydraulic buffer spring press-fitting device based on an assembly robot to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an elevator hydraulic buffer spring press-fitting device based on an assembly robot, comprising: a workbench and an annular base fixedly mounted on the upper end surface of the workbench, a positioning column fixedly mounted concentrically at the center position of the annular base, and a cam fixedly mounted on the outer surface of the positioning column, a rotating disk rotatably mounted on the outer surface of the positioning column, and the rotating disk is located between the cam and the annular base, a motor fixedly mounted on the outer surface of the positioning column, the output end of the motor facing upward, and a first gear fixedly mounted on the output end of the motor, and a second gear meshing with the first gear fixedly mounted concentrically on the lower end surface of the rotating disk;

[0006] It also includes: a spring compression unit for compressing the spring to be assembled, and the spring compression unit is arranged on the upper end surface of the rotating disk;

[0007] The buffer assembly unit is used to assemble the spring compressed in the spring compression unit outside the piston rod of the buffer, and the buffer assembly unit is located outside the annular base.

[0008] Preferably, the spring compression unit includes four assembly plates fixedly mounted on the upper end surface of the rotating disk and distributed at equal distances from the circumference. The upper end surface of each assembly plate is slidably mounted with two symmetrically distributed Y-shaped slides. A synchronization component is provided between the two Y-shaped slides. The synchronization component can allow the two Y-shaped slides to move synchronously. A semicircular plate is fixedly provided on the outer end surface of one of the Y-shaped slides close to the cam and away from the other Y-shaped slide, and a first dome block is concentrically fixedly mounted on the other end of the semicircular plate. The arc surface of the first dome block slides with the outer surface of the cam. The two Y-shaped slides are fitted together, an assembly spring is placed between the two Y-shaped slides, and a limiting plunger is placed inside each semicircular plate. An arc support plate is fixedly provided on one end face of the two Y-shaped slides close to each other, and the arc support plate is concentrically assembled with the center notches of the semicircular plate and the Y-shaped slide. The two arc support plates simultaneously lift the assembly spring, and an arc limit plate is fixedly mounted on the outer surface of the positioning column, and the arc limit plate is located on the upper end face of the cam. The arc limit plate is a quarter circle, and the two ends of the arc limit plate start from the proximal end of the cam and end at the distal end.

[0009] Preferably, the synchronization component includes a sleeve column fixedly assembled inside the assembly plate, and the sleeve column is located at the symmetrical center of the two Y-shaped slides. The outer surface of the sleeve column is rotatably sleeved with a transmission gear, and the transmission gear is located inside the loading frame. Each of the Y-shaped slides is fixedly assembled with a rack on one end face close to the transmission gear, and the two racks are equidistantly distributed around the transmission gear. The two racks are engaged with the transmission gear at the same time. A reset spring is sleeved on the outer surface of each rack, and the two ends of the reset spring are respectively fixed to the Y-shaped slide and the assembly plate.

[0010] Preferably, the buffer assembly unit includes a cylinder push rod fixedly mounted on the upper end surface of the workbench, and the output end of the cylinder push rod is opposite to the distal end of the cam, and a loading frame is further provided between the cylinder push rod and the rotating disk, and the loading frame is fixed to the upper end surface of the workbench in an inclined state, and the top of the loading frame and the end surface of the loading frame close to the cam are both open, and the end surface of the loading frame away from the cam is fixedly provided with a magnetic baffle, and a straight groove is provided inside the magnetic baffle, and the output end of the cylinder push rod can pass through the straight groove, and a number of hydraulic buffers distributed in a straight line and equidistantly are stacked inside the loading frame, and the piston rod of the hydraulic buffer faces the cam, and the hydraulic buffer located at the bottom is coaxial with the output end of the cylinder push rod and the semicircular plate, and a docking component is also provided between the piston rod of the hydraulic buffer and the limit plunger.

[0011] Preferably, the docking component includes an annular groove provided on the inner wall of the limit plunger, the piston rod end of the hydraulic buffer is fixedly equipped with a docking joint, a limit block is fixedly provided at the inner center of the docking joint, and a plurality of trapezoidal blocks equidistantly distributed around the circumference are slidably mounted on the outer wall of the docking joint, a second spring is fixedly provided between the trapezoidal block and the limit block, the trapezoidal block is movably engaged with the annular groove, the trapezoidal block is in the shape of a right-angled trapezoid, and the inclined surface of the trapezoidal block faces the limit plunger.

[0012] Preferably, a carbon alloy sheet is fixedly attached to one end of the hydraulic buffer away from the cam, and the carbon alloy sheet can be magnetically attracted by the straight slot.

[0013] Preferably, a unloading unit is further provided between each of the assembly plates and the annular base, and the unloading unit includes a connecting block fixedly mounted on each of the assembly plates away from an end face of the cam, and a second column and a first column are slidably inserted into the interior of the connecting block and the interior of the casing column, respectively, and the first column and the second column can only slide up and down, and an arc guide plate and a second dome block are fixedly provided at the upper and lower ends of the first column and the second column, and the distance between the two arc guide plates and the hydraulic buffer and the assembly spring is consistent, and a first spring is distributed on the outside of the first column and the second column, and the two ends of the first spring are respectively fixed to the second dome block and the assembly plate / the connecting block, and a lifting component is provided on the upper end face of the annular base, and the lifting component is located below the distal end of the cam, and the lifting component is used to synchronously lift the first column and the second column, and make the second column reset downward at a speed greater than the speed of the first column reset downward.

[0014] Preferably, the lifting component includes a first oblique arc block, a second oblique arc block, and a third oblique arc block. The arc surface strokes of the first oblique arc block and the second oblique arc block are both quarter-circular, and the two are distributed oppositely. The second oblique arc block is fixedly provided with a third oblique arc block on an end face away from the cam. The arc surface stroke of the third oblique arc block is smaller than the arc surface stroke of the second oblique arc block. The widths of the second oblique arc block and the third oblique arc block are both half of the first oblique arc block, and the heights of the first oblique arc block, the second oblique arc block, and the third oblique arc block are consistent.

[0015] Preferably, a flexible blanking bag is fixedly extended from the bottom of the workbench, and the flexible blanking bag is tilted downward, and the flexible blanking bag is distributed below the first oblique arc block and the second oblique arc block.

[0016] Preferably, the bottom of the loading frame is elastically hingedly assembled with an opening and closing frame plate through a latch and a torsion spring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] When the rotary disk is driven by an electric motor to rotate intermittently, the present invention performs a stable compression process on the spring through the spring compression unit. After the compression is completed, the piston rod end of the buffer can be directly passed through the center of the compressed spring through the buffer assembly unit and fixed to the plunger at the same time. The compressed spring is automatically assembled on the buffer without the need for manual assembly of the plunger, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic structural diagram of the present invention from another perspective;

[0021] Figure 3 A top view of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the magnetic baffle and the opening and closing frame plate of the present invention;

[0023] Figure 5 This is a schematic diagram of the bottom structure of the rotating disk of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the assembly board of the present invention;

[0025] Figure 7 This is a structural schematic diagram of the assembly state of the butt joint and the plunger of the present invention;

[0026] Figure 8 This is a schematic diagram of the lifting component structure of the present invention;

[0027] Figure 9 For the present invention Figure 8 Enlarged view of point A in the middle.

[0028] Figure 1: Workbench; 2: Ring base; 3: Positioning column; 4: Rotating disk; 5: Cam; 6: Arc stop plate; 7: Cylinder push rod; 8: Loading frame; 9: Hydraulic buffer; 10: Flexible unloading bag; 11: Motor; 12: First gear; 13: Second gear; 14: Magnetic baffle; 15: Straight groove; 16: Butt joint; 17: Opening and closing frame plate; 18: Assembly plate; 19: Y-shaped slide plate; 20: Rack; 21: Transmission gear Wheel; 22. Casing column; 23. First dome block; 24. Assembly spring; 25. Connecting block; 26. First column; 27. Second column; 28. First spring; 29. ​​Second dome block; 30. Arc guide plate; 31. Limit plunger; 32. Ring groove; 33. Limit block; 34. Trapezoidal block; 35. Second spring; 36. Semicircular plate; 37. Second oblique arc block; 38. Second oblique arc block; 39. Third oblique arc block; 40. Return spring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figures 1-9, the figure shows an elevator hydraulic buffer spring pressing device based on an assembly robot, comprising: a workbench 1 and an annular base 2 fixedly mounted on the upper end surface of the workbench 1, a positioning column 3 fixedly mounted concentrically on the center position of the annular base 2, and a cam 5 fixedly sleeved on the outer surface of the positioning column 3, a rotating disk 4 rotatably mounted on the outer surface of the positioning column 3, and the rotating disk 4 is located between the cam 5 and the annular base 2, a motor 11 fixedly mounted on the outer surface of the positioning column 3, the output end of the motor 11 facing upward, and a first gear 12 fixedly sleeved on the output end of the motor 11, a second gear 13 meshing with the first gear 12 fixedly mounted concentrically on the lower end surface of the rotating disk 4, the motor 11 can intermittently drive the rotating disk 4 to rotate through the meshing of the first gear 12 and the second gear 13, and the angle of rotation of the rotating disk 4 driven each time is ninety degrees;

[0031] It also includes: a spring compression unit for compressing the spring to be assembled, and the spring compression unit is arranged on the upper end surface of the rotating disk 4;

[0032] The buffer assembly unit is used to assemble the compressed spring in the spring compression unit outside the piston rod of the buffer. The buffer assembly unit is located outside the annular base 2.

[0033] The spring compression unit includes four assembly plates 18 fixedly mounted on the upper end surface of the rotating disk 4 and distributed equidistantly around the circumference. The upper end surface of each assembly plate 18 is slidably mounted with two symmetrically distributed Y-shaped slides 19. A synchronization component is provided between the two Y-shaped slides 19. The synchronization component enables the two Y-shaped slides 19 to move synchronously. A semicircular plate 36 is fixedly provided on the outer end surface of a Y-shaped slide 19 close to the cam 5 and away from the other Y-shaped slide 19, and the other end of the semicircular plate 36 is concentrically fixedly mounted with a first dome block 23. The arc surface of the first dome block 23 slides in contact with the outer surface of the cam 5. An assembly spring 24 is placed between the two Y-shaped slides 19, and a limiting plunger 31 is placed inside each semicircular plate 36. An arc support plate is also fixed on the end surfaces of the two Y-shaped slides 19 that are close to each other. , and the arc support plate is concentrically assembled with the center notches of the semicircular plate 36 and the Y-shaped slide plate 19. The two arc support plates lift the assembly spring 24 at the same time. The outer surface of the positioning column 3 is also fixed with an arc limit plate 6, and the arc limit plate 6 is located at the upper end surface of the cam 5. The arc limit plate 6 is a quarter circle, and the two ends of the arc limit plate 6 start from the proximal end of the cam 5 and end at the distal end. When the rotating disk 4 rotates with the feeding frame 8, the outer wall of the cam 5 will push the first dome block 23 to displace, so that the two Y-shaped slides 19 can move toward each other under the action of the synchronization component, compressing the assembly spring 24. During the compression process, the arc limit plate 6 is pressed on the top center of the assembly spring 24, which can prevent the assembly spring 24 from bulging in the middle during the compression process and eventually popping out.

[0034] The synchronization component includes a sleeve column 22 fixedly assembled inside the assembly plate 18, and the sleeve column 22 is located at the symmetrical center of the two Y-shaped slides 19. The outer surface of the sleeve column 22 is rotatably sleeved with a transmission gear 21, and the transmission gear 21 is located inside the loading frame 8. Each Y-shaped slide 19 is fixedly assembled with a rack 20 on one end face close to the transmission gear 21, and the two racks 20 are equidistantly distributed around the transmission gear 21. The two racks 20 are engaged with the transmission gear 21 at the same time. A return spring 40 is sleeved on the outer surface of each rack 20, and the two ends of the return spring 40 are respectively fixed to the Y-shaped slide 19 and the assembly plate 18. Since the position of the transmission gear 21 is fixed, when one of the Y-shaped slides 19 changes position with the rack 20, the engagement of the rack 20 with the transmission gear 21 can make the other Y-shaped slide 19 move synchronously.

[0035] The buffer assembly unit includes a cylinder push rod 7 fixedly mounted on the upper end surface of the workbench 1, and the output end of the cylinder push rod 7 is opposite to the distal end of the cam 5. A feeding frame 8 is also provided between the cylinder push rod 7 and the rotating disk 4, and the feeding frame 8 is fixed on the upper end surface of the workbench 1 in an inclined shape. The top of the feeding frame 8 and the end surface of the feeding frame 8 close to the cam 5 are both open. A magnetic baffle 14 is fixedly provided on the end surface of the feeding frame 8 away from the cam 5, and a straight groove 15 is provided inside the magnetic baffle 14. The output end of the cylinder push rod 7 can pass through the straight groove 15, and the interior of the feeding frame 8 is stacked. There are several hydraulic buffers 9 distributed in a straight line and at equal intervals, and the piston rods of the hydraulic buffers 9 are facing the cam 5. The hydraulic buffer 9 located at the bottom and the output end of the cylinder push rod 7 and the semicircular plate 36 are all coaxially arranged. A docking component is also provided between the piston rod of the hydraulic buffer 9 and the limit plunger 31. Whenever the compressed assembly spring 24 stops at the distal end of the cam 5, the output end of the cylinder push rod 7 will push the hydraulic buffer 9 toward the direction of the cam 5, so that the piston rod of the hydraulic buffer 9 passes through the center of the assembly spring 24 and is assembled with the limit plunger 31 through the docking component.

[0036] The docking component includes an annular groove 32 provided on the inner wall of the limit plunger 31, and the piston rod end of the hydraulic buffer 9 is fixedly equipped with a docking joint 16. A limit block 33 is fixedly provided in the inner center of the docking joint 16, and a plurality of trapezoidal blocks 34 equidistantly distributed around the circumference are slidably installed on the outer wall of the docking joint 16. A second spring 35 is fixedly provided between the trapezoidal blocks 34 and the limit blocks 33. The trapezoidal blocks 34 are movably engaged with the annular groove 32. The trapezoidal blocks 34 are in the shape of a right-angled trapezoid, and the inclined surface of the trapezoidal blocks 34 faces the limit plunger 31. When the docking joint 16 extends into the interior of the limit plunger 31, the trapezoidal blocks 34 will first be squeezed and pushed into the interior of the docking joint 16 by the port of the limit plunger 31 until the trapezoidal blocks 34 contact the annular groove 32, and then elastically engaged under the action of the second spring 35.

[0037] The bottom of the loading frame 8 is elastically hinged with an opening and closing frame plate 17 through a latch and a torsion spring. The opening and closing frame plate 17 can be elastically flipped under force to allow the assembled hydraulic buffer 9 to be moved out from the interior of the loading frame 8.

[0038] Example 2: Please refer to Figure 4 This embodiment is a further explanation of the first embodiment. A carbon alloy sheet is fixedly attached to the end of the hydraulic buffer 9 away from the cam 5. The carbon alloy sheet can be magnetically attracted by the straight groove 15. The straight groove 15 exerts a certain magnetic attraction on the carbon alloy sheet, thereby ensuring the stability of the hydraulic buffer 9 when it slides down inside the loading frame 8.

[0039] Example 3: Please refer to Figure 6-Figure 8 , this embodiment is a further explanation of the first embodiment, and a discharge unit is further provided between each assembly plate 18 and the annular base 2, and the discharge unit includes a connecting block 25 fixedly mounted on an end face of each assembly plate 18 away from the cam 5, and a second column 27 and a first column 26 are slidably inserted into the interior of the connecting block 25 and the interior of the casing column 22, respectively. The first column 26 and the second column 27 can only slide up and down, and arc guide plates 30 and second dome blocks 29 are fixedly provided at the upper and lower ends of the first column 26 and the second column 27. The distance between the two arc guide plates 30 and the hydraulic buffer 9 and the assembly spring 24 is consistent, and a first spring 28 is distributed on the outside of the first column 26 and the second column 27, and the two ends of the first spring 28 are respectively connected to the second dome block 29 and the assembly plate 1 8 / The connecting block 25 is fixed, and a lifting component is provided on the upper end surface of the annular base 2. The lifting component is located below the distal end of the cam 5. The lifting component is used to synchronously lift the first column 26 and the second column 27, and make the second column 27 reset downward at a speed greater than the speed at which the first column 26 resets downward. When the rotating disk 4 rotates along the arc limit plate 6 with the first column 26 and the second column 27 at the same time, under the action of the lifting component, the first column 26 and the second column 27 can be synchronously raised, so that the assembled hydraulic buffer 9 and the assembly spring 24 can be lifted. When descending, the second column 27 descends faster and the first column 26 descends slower, thereby forming a height difference, which can allow the hydraulic buffer 9 and the first column 26 to automatically slide down along the two circular arc guide plates 30.

[0040] The lifting components include a first oblique arc block 37, a second oblique arc block 38, and a third oblique arc block 39. The arc surface strokes of the first oblique arc block 37 and the second oblique arc block 38 are both quarter-circular, and the two are distributed oppositely. The third oblique arc block 39 is fixedly provided on the end face of the second oblique arc block 38 away from the cam 5. The arc surface stroke of the third oblique arc block 39 is smaller than the arc surface stroke of the second oblique arc block 38. The widths of the second oblique arc block 38 and the third oblique arc block 39 are both half of the first oblique arc block 37, and the heights of the first oblique arc block 37, the second oblique arc block 38, and the third oblique arc block 39 are consistent. The first oblique arc block 37 can make the first column 26 and the second column 27 rise synchronously, and under the action of the second oblique arc block 38 and the third oblique arc block 39, the descending speed of the second column 27 can be much greater than the descending speed of the first column 26.

[0041] A flexible blanking bag 10 is fixedly extended from the bottom of the workbench 1, and the flexible blanking bag 10 is tilted downward. The flexible blanking bag 10 is distributed below the first bevel arc block 37 and the second bevel arc block 38. When the assembled hydraulic buffer 9 and the assembly spring 24 fall, they can be received and guided by the flexible blanking bag 10, thereby facilitating the collection of the assembled buffer.

[0042] Working principle: Please refer to Figure 3 The workstations marked in: loading workstation, compression workstation, assembly workstation, unloading workstation, the four are equidistantly distributed around the circumference, and correspond to the assembly plates 18 at four positions. The staff will place the assembly spring 24 and the limit plunger 31 that need to be assembled between the two Y-shaped slides 19 and inside the semicircular plate 36 in sequence at the loading workstation. As the motor 11 intermittently drives the rotating disk 4, the assembly plate 18 carrying the assembly spring 24 and the limit plunger 31 will be moved to the position of the compression workstation. With the rotation of the next stage, the first dome block 23 will move from the proximal end of the cam 5 to the distal end. As the cam 5 pushes the first dome block 23, the two Y-shaped slides 19 will move toward each other synchronously, thereby compressing the assembly spring 24. Since the arc-shaped limit plate 6 is restricted to the top of the assembly spring 24, when the two Y-shaped slides 19 compress the assembly spring 24, the assembly spring 24 will not be elastically bulged and deformed, thereby ensuring the stability of the assembly spring 24 during the compression process.

[0043] After the assembly plate 18 moves to the distal end of the cam 5, the assembly spring 24 is compressed. At this time, the output end of the cylinder push rod 7 is moved back and forth once to push the hydraulic buffer 9 at the bottom of the loading frame 8 toward the cam 5. It should be noted that the piston rod of the hydraulic buffer 9 is in the state of minimum extension during the whole process. Under the push of the cylinder push rod 7, the exposed part of the piston rod of the hydraulic buffer 9 can directly pass through the grooves of the two Y-shaped slides 19 and the interior of the assembly spring 24, and be embedded in the limit plunger 31. In the process of embedding the limit plunger 31, the trapezoidal block 34 can be elastically fastened to the outer surface of the docking joint 16, thereby limiting the limit plunger 31 to the end of the docking joint 16, completing the assembly of the buffer, spring and plunger.

[0044] After the assembly is completed, the motor 11 continues to drive the rotating disk 4 to perform the third and fourth intermittent rotations. During the third rotation, the sliding fit between the second dome block 29 and the first oblique arc block 37 allows the first column 26 and the second column 27 to rise synchronously, that is, the assembled hydraulic buffer 9 and the assembly spring 24 are lifted upward by the two circular arc guide plates 30 and separated from the Y-shaped slide plate 19.

[0045] During the fourth intermittent rotation, since the second dome block 29 at the bottom of the first column 26 contacts the second oblique arc block 38, and the second dome block 29 at the bottom of the second column 27 contacts the third oblique arc block 39, the second column 27 will descend earlier than the first column 26 with the fourth rotation, so that the two arc guide plates 30 are in a state of low outside and high inside, so that under the guidance of the two arc guide plates 30, the assembled hydraulic buffer 9, assembly spring 24, and limit plunger 31 slide downward and are received by the flexible blanking bag 10.

[0046] Through the above-mentioned assembly scheme, the staff only needs to place the limit plunger 31 and the assembly spring 24 at the loading station, which greatly reduces the staff's labor steps and can avoid direct contact with the compressed assembly spring 24. At the same time, it also reduces safety hazards and improves the installation efficiency of the buffer's spring and plunger.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An elevator hydraulic buffer spring press-fitting device based on an assembly robot, characterized in that: include: A workbench (1) and an annular base (2) fixedly mounted on the upper end surface of the workbench (1); a positioning column (3) is fixedly mounted at the center of the annular base (2); a cam (5) is fixedly mounted on the outer surface of the positioning column (3); a rotating disk (4) is rotatably mounted on the outer surface of the positioning column (3); a motor (11) is fixedly mounted on the outer surface of the positioning column (3); a first gear (12) is fixedly mounted on the output end of the motor (11); and a second gear (13) meshing with the first gear (12) is concentrically mounted on the lower end surface of the rotating disk (4); Also includes: A spring compression unit, used for compressing a spring to be assembled, wherein the spring compression unit is arranged on the upper end surface of the rotating disk (4); The buffer assembly unit is used for assembling the compressed spring in the spring compression unit on the outside of the piston rod of the buffer, and the buffer assembly unit is located outside the annular base (2).

2. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 1, characterized in that: The spring compression unit includes four circumferentially equidistantly distributed assembly plates (18) fixedly assembled on the upper end surface of the rotating disk (4), two symmetrically distributed Y-shaped slides (19) are slidably mounted on the upper end surface of each assembly plate (18), a synchronization component is arranged between the two Y-shaped slides (19), a semicircular plate (36) is fixedly arranged on the outer end surface of one of the Y-shaped slides (19) close to the cam (5), and the other end of the semicircular plate (36) is equipped with a first dome block (23), an assembly spring (24) is placed between the two Y-shaped slides (19), and a limiting plunger (31) is placed inside each semicircular plate (36), and an arc-shaped limiting plate (6) is fixedly mounted on the outer surface of the positioning column (3), and the arc-shaped limiting plate (6) is located on the upper end surface of the cam (5).

3. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 2, characterized in that: The synchronization component includes a sleeve column (22) fixedly assembled inside the assembly plate (18), the outer surface of the sleeve column (22) is rotatably sleeved with a transmission gear (21), the transmission gear (21) is located inside the loading frame (8), and each of the Y-shaped slides (19) is fixedly assembled with a rack (20) on one end face close to the transmission gear (21), and the two racks (20) are simultaneously engaged with the transmission gear (21), and the outer surface of each rack (20) is sleeved with a return spring (40), and the two ends of the return spring (40) are respectively fixed to the Y-shaped slide (19) and the assembly plate (18).

4. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 2, characterized in that: The buffer assembly unit includes a cylinder push rod (7) fixedly mounted on the upper end surface of the workbench (1); a feeding frame (8) is also provided between the cylinder push rod (7) and the rotating disk (4); the top of the feeding frame (8) and the end surface of the feeding frame (8) close to the cam (5) are both open; a magnetic baffle (14) is fixedly provided on the end surface of the feeding frame (8) away from the cam (5), and a straight groove (15) is provided inside the magnetic baffle (14); a plurality of hydraulic buffers (9) are stacked and placed inside the feeding frame (8) and distributed in a straight line and at equal distances, and the piston rods of the hydraulic buffers (9) face the cam (5); the hydraulic buffer (9) located at the bottom is coaxially arranged with the output end of the cylinder push rod (7) and the semicircular plate (36); and a docking component is also provided between the piston rod of the hydraulic buffer (9) and the limit plunger (31).

5. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 4, characterized in that: The docking component includes an annular groove (32) provided on the inner wall of the limiting plunger (31); a docking joint (16) is fixedly mounted on the piston rod end of the hydraulic buffer (9); a limiting block (33) is fixedly arranged at the inner center of the docking joint (16); a trapezoidal clamping block (34) is slidably mounted on the outer wall of the docking joint (16); a second spring (35) is fixedly arranged between the trapezoidal clamping block (34) and the limiting block (33); and the trapezoidal clamping block (34) is movably engaged with the annular groove (32).

6. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 5, characterized in that: A carbon alloy sheet is fixedly adhered to one end of the hydraulic buffer (9) away from the cam (5).

7. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 3, characterized in that: A discharge unit is also provided between each assembly plate (18) and the annular base (2), and the discharge unit includes a connecting block (25) fixedly mounted on an end face of each assembly plate (18) away from the cam (5), a second column (27) and a first column (26) are slidably inserted into the interior of the connecting block (25) and the interior of the casing column (22), and an arc guide plate (30) and a second dome block (29) are fixedly provided at the upper and lower ends of the first column (26) and the second column (27), a first spring (28) is distributed on the outside of the first column (26) and the second column (27), and the two ends of the first spring (28) are fixed to the second dome block (29) and the assembly plate (18) / the connecting block (25), respectively. A lifting component is provided on the upper end face of the annular base (2), and the lifting component is located below the distal end of the cam (5).

8. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 7, characterized in that: The lifting component comprises a first oblique arc block (37), a second oblique arc block (38), and a third oblique arc block (39); the arc surface strokes of the first oblique arc block (37) and the second oblique arc block (38) are both in the shape of a quarter circle, and the two are arranged oppositely; the third oblique arc block (39) is fixedly provided on an end surface of the second oblique arc block (38) away from the cam (5); and the arc surface stroke of the third oblique arc block (39) is smaller than the arc surface stroke of the second oblique arc block (38).

9. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 8, characterized in that: A flexible blanking bag (10) is also fixedly extended from the bottom of the workbench (1), and the flexible blanking bag (10) is tilted downward.

10. The elevator hydraulic buffer spring press-fitting device based on an assembly robot according to claim 4, characterized in that: The bottom of the feeding frame (8) is elastically hingedly assembled with an opening and closing frame plate (17) via a latch and a torsion spring.

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