An automatic riveting jig for producing medical parts

Abstract

The present invention relates to the technical field of medical parts production, and in particular to an automatic riveting jig for medical parts production, comprising a base, a placement table and a fixed frame fixedly connected to the top of the base, and a linear slide fixedly installed on the fixed frame, the bottom of the linear slide fixedly connected to a riveting seat through an electric push rod, and a clamping assembly is arranged on the placement table; the present invention drives the riveting seat to move by the linear slide and the electric push rod, and uses the clamping assembly to combine the guide plate and the clamping assembly to realize automatic clamping of the rivet, and first accurately assembles the rivet into the riveting hole of the clamped and fixed stapler, and then performs the riveting operation, thereby improving the riveting efficiency; and when riveting is performed by descending the riveting seat, the fixation of the movable plate in the clamping assembly is first automatically released, and then the riveting head is driven to rotate eccentrically by the movement of the movable plate and the rotating rod, so as to realize the circumferential rolling of the top of the rivet, thereby further improving the riveting quality.

Description

Technical Field

[0001] The invention relates to the technical field of medical parts production, and in particular to an automatic riveting jig for medical parts production. Background Art

[0002] A stapler is a medical device that replaces manual suturing. Its main working principle is to use titanium staples and a cutting knife to staple and separate tissues. The stapler's staple principle is similar to that of a stapler, while the stapler's cutting is to use a cutting knife hidden in a sleeve to cut tissues while stapleing them. The cutting knife cuts as the push rod pushes it and moves in the middle groove between the staple magazine and the staple anvil. Currently, in the assembly process of the stapler, in order to ensure the firmness of the assembly of the staple magazine assembly and the abutment assembly, a riveting connection method is often used.

[0003] In the prior art, the assembled stapler is usually clamped by a riveting jig, and then the rivet is manually inserted into the riveting hole on the stapler, and finally the riveting operation is completed by riveting with a riveting machine. For example, a stapler riveting device with a publication number of CN217749204U in the prior art can achieve the concentricity of the riveting points of the staplers on both sides to improve the accuracy and efficiency of assembly. However, during the assembly process, the rivets are still assembled manually, which makes the labor intensity high and the assembly and riveting efficiency of the rivets cannot be further improved, resulting in the inability to quickly complete the riveting operation, thereby reducing the overall assembly efficiency of the stapler.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic riveting jig for the production of medical parts to solve the above-mentioned technical defects. The riveting seat is driven to move by a linear slide and an electric push rod, and the rivet is automatically clamped by means of a clamping assembly in combination with a guide plate and a clamping assembly. The rivet is first accurately assembled into the riveting hole of the clamped and fixed stapler, and then the riveting operation is performed, thereby improving the riveting efficiency; and when the riveting seat is lowered for riveting, the fixation of the movable plate in the clamping assembly is automatically released first, and then the eccentric rotation of the riveting head is driven by the movement of the movable plate in conjunction with the rotating rod, thereby realizing the circumferential rolling of the top of the rivet, further improving the riveting quality.

[0006] The purpose of the present invention can be achieved through the following technical solutions: an automatic riveting jig for medical parts production, comprising a base, the top of the base is fixedly connected to a placing table, and the top of the placing table is provided with a placing groove, the top of the base is located on one side of the placing table and is fixedly connected to a fixing frame, and a linear slide is fixedly installed on the fixing frame, the bottom of the linear slide is bolted to an electric push rod, the end of the telescopic rod of the electric push rod is fixedly connected to a riveting seat, and the bottom of the riveting seat is located on both sides of the placing table and is symmetrically fixedly connected to guide plates;

[0007] The placement table is provided with a clamping assembly, and the clamping assembly includes elastic clamping plates symmetrically arranged on both sides of the placement groove, and the back sides of the elastic clamping plates are provided with abutment seats matched with corresponding guide plates;

[0008] The riveting seat is provided with a clamping assembly, which includes a movable plate, the bottom of which is provided with clamping claws distributed in a circular array with three groups of relative electric push rods, and the top side of the base is provided with a rivet conveying pipeline matched with the clamping assembly.

[0009] Preferably, accommodating grooves are symmetrically provided on both sides of the placement groove, a mounting plate fixedly connected to the elastic clamp is provided in the accommodating groove, and a plurality of sliding rods fixedly connected to the corresponding abutment seats are equidistantly fixedly connected to one side of the mounting plate, the sliding rods are slidably connected to the placement table, a return spring is fixedly connected between the abutment seat and the placement table and located on the outside of the corresponding sliding rod, and an abutment roller is rotatably connected to the abutment seat.

[0010] Preferably, an adjusting frame is fixedly connected to the side of the placement table away from the rivet conveying pipe, a screw rod is rotatably connected inside the adjusting frame, and a movable seat slidably connected to the adjusting frame is threadedly connected to the screw rod, a positioning block is bolted to the top of the movable seat, and a positioning groove matching the end of the rivet seat is opened on the side of the positioning block close to the placement table.

[0011] Preferably, a cavity is provided inside the riveting seat and is slidably connected to the movable plate, a limiting slider is fixedly connected to the top of each clamping jaw, a limiting groove is provided at the bottom of the movable plate and is slidably connected to the corresponding limiting slider, and a through groove is provided at the bottom of the cavity for the corresponding clamping jaw to pass through.

[0012] Preferably, a guiding slope 1 is provided on the bottom of the guide plate near the placing table, a clamping tension spring is fixedly connected between the limiting sliding block and the limiting sliding groove, and a guiding slope 2 is provided on the bottom of the opposite side of each clamping claw.

[0013] Preferably, a rotating rod that passes through the outside of the riveting seat is rotatably connected to the top of the cavity and located between multiple groups of jaws, and the free end of the rotating rod is fixedly connected to a riveting head, and a through hole is penetrated on the movable plate for the rotating rod to pass through.

[0014] Preferably, a guide pin is fixedly connected to the annular inner wall of the through hole, a threaded guide groove matching the corresponding guide pin is opened on the annular outer wall of the rotating rod, and a plurality of reset springs distributed in a rectangular array are fixedly connected between the top of the movable plate and the cavity.

[0015] Preferably, a mounting groove connected to the cavity is provided inside the guide plate, a guide block is slidably connected in the mounting groove, and one side of the guide block extends to the outside of the guide plate, a limiting block is fixedly connected to the top of the guide block, a limiting slot matched with the corresponding limiting block is provided on the movable plate, a return spring three is symmetrically fixedly connected between the guide block and the mounting groove, and a guiding inclined surface three is provided on the bottom of one side of the guide block located outside the mounting groove.

[0016] Preferably, a limiting rod is fixedly connected to one side of the riveting seat, and a sliding seat is slidably connected to the limiting rod, and a sliding rail slidably connected to the sliding seat is fixedly connected to the fixing frame.

[0017] The beneficial effects of the present invention are as follows:

[0018] (1) When the present invention is in use, the linear slide combined with the electric push rod drives the riveting seat to move, and with the help of multiple clamping claws on the movable plate inside the riveting seat, the rivets on the rivet conveying pipe are automatically clamped before riveting; and during the descending process of the riveting seat, the guide plates on both sides of the bottom of the riveting seat are first used to synchronously drive the corresponding abutment seat to move, forcing the elastic clamping plates on both sides to clamp and fix the placed stapler, so that the rivet can be accurately assembled into the riveting hole on the stapler, and the riveting work after the rivet assembly is synchronously completed by the continuous descending of the riveting seat and the abutment of the riveting head on the internal rotating rod against the rivet, thereby effectively improving the riveting efficiency;

[0019] (2) The rivet pressing seat of the present invention descends to force the abutting seats on both sides to abut against the corresponding guide plates, first completing the clamping and fixing of the stapler, and then using the abutting seat to abut against the guide block on the guide plate to move it into the corresponding installation groove, forcing the limit block to separate from the corresponding limit groove on the movable plate, ensuring that when the rivet pressing seat is pressed down to rivet the rivet, the clamping claws are automatically retracted to avoid extrusion damage to the stapler; and when the rivet pressing seat rises, the movable plate and the clamping claws are reset first under the cooperation of the reset spring 2, and then the guide block is separated from the abutting seat, and combined with the reset spring 3, the limit block is engaged with the corresponding limit groove, thereby ensuring the effective clamping of the rivet by the clamping claws and the clamping stability;

[0020] (3) When the riveting seat of the present invention presses down to rivet the rivet, the clamping jaws of the stapler are used to push the movable plate to move upward in the riveting seat, and the guide pin on the movable plate cooperates with the threaded guide groove to drive the rotating rod to rotate, forcing the riveting head on the rotating rod to press down and rotate eccentrically at the same time, so as to achieve circumferential rolling of the top of the rivet, thereby further improving the riveting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings;

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a structural schematic diagram of the placement table of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the clamping assembly of the present invention;

[0025] Figure 4 It is a schematic diagram of the connection between the riveting seat and the fixing frame of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the riveting seat of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the clamping assembly of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the guide block of the present invention;

[0029] Figure 8 It is a schematic diagram of the cooperation between the clamping assembly and the riveting seat of the present invention.

[0030] Legend:

[0031] 1. Base; 11. Placement table; 12. Placement slot; 13. Rivet delivery pipe; 14. Accommodation slot; 15. Adjustment frame; 16. Screw rod; 17. Moving seat; 18. Positioning block; 19. Positioning slot;

[0032] 2. Fixed frame; 21. Linear slide; 22. Electric push rod; 23. Riveting seat; 24. Guide plate; 25. Cavity; 26. Through slot; 27. Rotating rod; 28. Riveting head; 29. ​​Threaded guide slot; 210. Mounting slot; 211. Guide block; 212. Limiting block; 213. Return spring three; 214. Limiting rod; 215. Sliding seat; 216. Sliding rail;

[0033] 3. Clamping assembly; 31. Elastic clamping plate; 32. Abutment seat; 33. Mounting plate; 34. Sliding rod; 35. Return spring 1; 36. Abutment roller;

[0034] 4. Clamping assembly; 41. Movable plate; 42. Clamping claw; 43. Limiting slider; 44. Limiting slide groove; 45. Clamping tension spring; 46. Through hole; 47. Guide pin; 48. Reset spring 2; 49. Limiting slot. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0036] Embodiment 1: The problem that the prior art still uses the method of manually assembling rivets, which cannot further improve the assembly and riveting efficiency of rivets and thus reduces the overall assembly efficiency of the stapler, can be solved by the following solution;

[0037] See also Figure 1-Figure 6 As shown, in this embodiment, an automatic riveting jig for producing medical parts includes a base 1, a placement table 11 is fixedly connected to the top of the base 1, and a placement groove 12 is provided on the top of the placement table 11 for placing the stapler and the stapler seat after the stapler is assembled;

[0038] The top of the base 1 is located on one side of the placement table 11 and is fixedly connected with a fixing frame 2. The fixing frame 2 is an inverted L-shaped structure and is used to drive the riveting seat 23 to install components that move in the horizontal and vertical directions. A linear slide 21 is fixedly installed on the fixing frame 2. The bottom of the linear slide 21 is bolted with an electric push rod 22. The end of the telescopic rod of the electric push rod 22 is fixedly connected with the riveting seat 23. The linear slide 21 is used to drive the riveting seat 23 to accurately adjust its position in the horizontal direction. The electric push rod 22 is used to drive the riveting seat 23 to accurately adjust its position in the vertical direction. The rivets are riveted by cooperating with the placement slot 12 through the descending movement of the riveting seat 23, and the bottom of the riveting seat 23 is located on both sides of the placement table 11 and is symmetrically fixedly connected with guide plates 24.

[0039] The placement table 11 is provided with a clamping assembly 3 for clamping and fixing the stapler assembled in the placement slot 12. The clamping assembly 3 includes elastic clamping plates 31 symmetrically arranged on both sides of the placement slot 12. One side of the elastic clamping plate 31 is provided with a clamping groove adapted to the stapler to increase the clamping and fixing effect of the stapler. The opposite side of the elastic clamping plate 31 is provided with an abutment seat 32 matched with the corresponding guide plate 24.

[0040] A clamping assembly 4 is provided on the riveting seat 23 for clamping the rivet and accurately plugging it into the riveting hole on the assembled anastomosis device, so as to realize automatic assembly and improve the assembly efficiency. The clamping assembly 4 includes a movable plate 41. The bottom of the movable plate 41 is provided with clamping claws 42 distributed in a circular array with three groups of relative electric push rods 22. The rivets placed therein are clamped and grasped by the three groups of clamping claws 42. A rivet conveying pipe 13 cooperating with the clamping assembly 4 is provided on one side of the top of the base 1. The rivet conveying pipe 13 is connected to the vibration plate for vertically conveying the rivets one by one, and a clearance groove is provided on the side of the rivet conveying pipe 13 close to the placement table 11, which is used to increase the clearance area when the clamping claw 42 is lowered, thereby increasing the contact surface between the clamping claw 42 and the rivet, improving the clamping stability, and an arc groove is provided on the opposite side of the clamping claw 42 to further increase the clamping contact surface.

[0041] Receiving grooves 14 are symmetrically provided on both sides of the placement groove 12 for receiving the elastic clamping plate 31, so as to facilitate the rapid placement of the assembled stapler. A mounting plate 33 fixedly connected to the elastic clamping plate 31 is provided in the receiving groove 14, and a plurality of slide bars 34 fixedly connected to the corresponding abutment seats 32 are equidistantly fixedly connected to one side of the mounting plate 33. The slide bars 34 are slidably connected to the placement platform 11. A return spring 35 is fixedly connected between the abutment seat 32 and the placement platform 11 and on the outer side of the corresponding slide bar 34. An abutment roller 36 is rotatably connected to the abutment seat 32.

[0042] By pushing the abutment seats 32 on both sides to move relative to each other and driving the corresponding elastic clamps 31 through the slide rod 34 to clamp and fix the two sides of the assembled stapler, stability is achieved during rivet assembly and riveting. After the riveting is completed, under the compression of the reset spring 35, the elastic clamps 31 on both sides are driven to reset, which is convenient for taking out and placing the stapler.

[0043] An adjusting frame 15 is fixedly connected to one side of the placing table 11 away from the rivet conveying pipe 13, a screw rod 16 is rotatably connected inside the adjusting frame 15, one end of the screw rod 16 passes through the adjusting frame 15 and is fixedly connected to a torsion wheel for rotating the screw rod 16, and a moving seat 17 slidably connected to the adjusting frame 15 is threadedly connected to the screw rod 16, a positioning block 18 is bolted to the top of the moving seat 17, and a positioning groove 19 adapted to the end of the anvil seat is provided on the side of the positioning block 18 close to the placing table 11;

[0044] The positioning block 18 and the positioning groove 19 are used to position and place the stapler placed in the placement groove 12, thereby improving the positioning effect after clamping, and cooperating with the precise adjustment of the position of the riveting seat 23 to achieve the effect of precise assembly, and by rotating the screw rod 16 to drive the moving seat 17 to move, thereby changing the position of the positioning block 18 to achieve the positioning and placement of staplers of different lengths, and through the bolt connection between the positioning block 18 and the moving seat 17, the positioning block 18 with different positioning grooves 19 can be replaced to achieve the use of different types of nail seats.

[0045] A cavity 25 is provided inside the riveting seat 23 which is slidably connected to the movable plate 41. The top of each clamping claw 42 is fixedly connected to a limiting slider 43. A limiting slide groove 44 is provided at the bottom of the movable plate 41 which is slidably connected to the corresponding limiting slider 43. A through groove 26 is provided at the bottom of the cavity 25 for the corresponding clamping claw 42 to pass through. The limiting slider 43 and the limiting slide groove 44 are arranged to clamp pins of different sizes. The movable plate 41 is slidably arranged in the riveting seat 23 so that during the riveting process of the riveting seat 23 continuously descending, the rivet is first inserted into the riveting hole on the stapler, and then the clamping claw 42 contacts the stapler. Under the abutment of the stapler, the movable plate 41 is pushed to move upward in the riveting seat 23, and the clamping claw 42 is automatically stored to avoid extrusion damage to the stapler. When the electric push rod 22 is continuously pressed downward, the riveting head 28 abuts against the rivet to complete the riveting operation.

[0046] A guiding slope 1 is provided at the bottom of the guide plate 24 on one side close to the placement table 11. The clamping assembly 4 clamps the rivet, and the rivet pressing seat 23 drives the rivet to move downward. The guiding slope 1 on the guide plate 24 contacts the abutment roller 36, forcing the two groups of abutment seats 32 to move relative to each other and compressing the reset spring 1 35. The two groups of elastic clamps 31 are pushed by the slide bar 34 to complete the positioning and clamping of the stapler in the placement groove 12. A clamping tension spring 45 is fixedly connected between the limiting slide block 43 and the limiting slide groove 44. A guiding slope 2 is provided at the bottom of the opposite side of each clamping claw 42.

[0047] The linear slide 21 drives the riveting seat 23 to move above the rivet conveying pipe 13, so that the three groups of jaws 42 are placed directly above the first rivet, and the electric push rod 22 drives the riveting seat 23 to descend. The three groups of jaws 42 contact the corresponding rivets and, under the guidance of the guiding slope 2, force the three groups of jaws 42 to move away from each other and stretch the clamping spring 45, forcing the first rivet to move between the three groups of jaws 42. With the help of the stretching elastic force of the corresponding clamping spring 45, the rivet placed between the three groups of jaws 42 is stably clamped, and then the riveting seat 23 is driven by the electric push rod 22 and the linear slide 21 to realize the assembly of the rivets.

[0048] A limiting rod 214 is fixedly connected to one side of the riveting seat 23, and a sliding seat 215 is slidably connected to the limiting rod 214. A sliding rail 216 slidably connected to the sliding seat 215 is fixedly connected to the fixed frame 2. The setting of the limiting rod 214, the sliding seat 215 and the sliding rail 216 enables the riveting seat 23 to move stably in the horizontal or vertical direction.

[0049] Embodiment 2: When the clamping claws clamp the rivets, the movable plate is prone to upward movement, which makes it difficult to achieve effective clamping and reduces the rivet clamping and feeding effect. The following solution can be used to solve the problem;

[0050] See also Figure 5-Figure 8 As shown, in this embodiment, a rotating rod 27 that penetrates to the outside of the riveting seat 23 is rotatably connected to the top of the cavity 25 and is located between multiple groups of clamps 42, and the free end of the rotating rod 27 is fixedly connected to a riveting head 28. A riveting block is provided in the placement groove 12 just below the riveting head 28. A through hole 46 for the rotating rod 27 to pass through is opened on the movable plate 41. The rivet is placed between the three groups of clamps 42, and its top abuts against the riveting head 28 above. As the riveting seat 23 continues to descend, the rivet is first inserted into the riveting hole on the anastomosis device under the abutment of the riveting head 28, and then the two ends of the rivet are riveted with the riveting block in the placement groove 12.

[0051] A guide pin 47 is fixedly connected to the annular inner wall of the through hole 46, and a threaded guide groove 29 corresponding to the guide pin 47 is opened on the annular outer wall of the rotating rod 27. A plurality of return springs 48 distributed in a rectangular array are fixedly connected between the top of the movable plate 41 and the cavity 25. During the riveting process of the rivet as the riveting seat 23 continues to descend, the clamping jaw 42 contacts the stapler, and under the abutment of the stapler, pushes the movable plate 41 to move upward in the riveting seat 23 and compresses the return spring 48. The upward movement of the movable plate 41 in the riveting seat 23 is utilized, and the rotating rod 27 is driven to rotate with the help of the guide pin 47 and the threaded guide groove 29, so that the rotating rod 27 is forced to drive the riveting head 28 to press down while rotating eccentrically, and the top of the rivet is rolled in a circular manner to improve the riveting effect.

[0052] The guide plate 24 is provided with a mounting groove 210 in communication with the cavity 25, a guide block 211 is slidably connected in the mounting groove 210, and one side of the guide block 211 extends through the outside of the guide plate 24, a limit block 212 is fixedly connected to the top of the guide block 211, and a limit groove 49 adapted to the corresponding limit block 212 is provided on the movable plate 41, and the limit block 212 is engaged with the corresponding limit groove 49, so as to ensure that when the riveting seat 23 moves downward, the movable plate 41 is prohibited from The upward movement is stopped, and the clamping claws 42 are forced to move away from each other, so as to effectively clamp the rivet, thereby improving the clamping stability. A return spring 3 213 is symmetrically fixedly connected between the guide block 211 and the mounting groove 210. A telescopic sleeve rod is fixedly connected between the guide block 211 and the mounting groove 210 and located inside the corresponding return spring 3 213, so as to increase the sliding stability of the guide block 211 in the mounting groove 210. A guide slope 3 is provided at the bottom of one side of the guide block 211 located outside the mounting groove 210;

[0053] The riveting seat 23 descends to force the abutting rollers 36 on both sides to abut against the corresponding guide plates 24, first completing the clamping and fixing of the stapler, and then using the abutting rollers 36 to contact the three guide bevels to abut against the guide blocks 211 on the guide plates 24, so that they move into the corresponding installation grooves 210, forcing the limit block 212 to separate from the corresponding limit grooves 49 on the movable plate 41, ensuring that when the riveting seat 23 is pressed down to rivet the rivet, the clamping claws 42 are automatically retracted and rise with the riveting seat 23. When the movable plate 41 is lowered and reset in the riveting seat 23 under the action of the compressive force of the reset spring 2 48, the movable plate 41 first descends and resets in the riveting seat 23 and pushes the clamping claw 42 to extend to the outside of the riveting seat 23, and then the abutment roller 36 is separated from the guide block 211, and under the action of the compressive force of the reset spring 3 213, the guide block 211 is pushed to drive the limit block 212 to engage with the corresponding limit groove 49, so as to limit the upward movement of the movable plate 41 in the riveting seat 23, so as to prepare for the clamping and feeding of the next rivet.

[0054] Example 3: Please refer to Figure 1-Figure 8 As shown, the present invention also provides a method for using an automatic riveting jig for producing medical parts, comprising the following steps:

[0055] S1: Connect the rivet delivery pipe 13 through the vibration plate to feed the rivets. According to the riveting area of ​​the stapler, adjust the position of the positioning block 18. The positioning block 18 is driven to adjust the position by rotating the screw rod 16 and cooperating with the moving seat 17. Then, the stapler is placed in the placement slot 12 with the help of the feeding robot arm, and the end of the nail support seat is engaged with the positioning slot 19 on the positioning block 18.

[0056] S2: The linear slide 21 drives the riveting seat 23 to move above the rivet conveying pipe 13, so that the three groups of clamping jaws 42 are placed directly above the first rivet, and the electric push rod 22 drives the riveting seat 23 to descend, and the three groups of clamping jaws 42 contact the corresponding rivets, and under the guidance of the second guide slope, the three groups of clamping jaws 42 are forced to move away from each other and stretch the clamping tension spring 45, so that the first rivet is clamped between the three groups of clamping jaws 42, and then the riveting seat 23 and the clamped rivet are driven to move above the placement table 11 by the electric push rod 22 and the linear slide 21;

[0057] S3: The electric push rod 22 drives the riveting seat 23 to descend again, and uses the guide slope 1 on the guide plate 24 to contact the abutment roller 36, forcing the two sets of abutment seats 32 to move relative to each other and compress the return spring 1 35, and uses the slide rod 34 to push the two sets of elastic clamping plates 31 to position and clamp the stapler in the placement slot 12;

[0058] S4: After the contact roller 36 separates from the guide slope 1, it cooperates with the guide slope 3 to contact the guide block 211, forcing the guide block 211 to move to the installation groove 210 and compress the return spring 3 213, driving the limit block 212 to separate from the corresponding limit groove 49 on the movable plate 41;

[0059] S5: As the riveting seat 23 continues to descend, the rivet is first inserted into the riveting hole on the stapler under the contact of the riveting head 28, and the rear clamp 42 contacts the stapler. Under the contact of the stapler, the movable plate 41 is pushed to move upward in the riveting seat 23 and compress the return spring 2 48. Under the continuous downward pressure of the electric push rod 22, the riveting head 28 contacts the rivet to complete the riveting operation.

[0060] S6: During the upward movement of the movable plate 41 in the riveting seat 23, the guide pin 47 cooperates with the threaded guide groove 29 to drive the rotating rod 27 to rotate, forcing the rotating rod 27 to drive the riveting head 28 to press down and rotate eccentrically at the same time, so as to perform circumferential rolling on the top of the rivet, thereby improving the riveting effect;

[0061] S7: After the riveting is completed, the electric push rod 22 drives the riveting seat 23 to rise and reset. Under the compression force of the reset spring 2 48, the movable plate 41 first descends and resets in the riveting seat 23 and pushes the clamping claw 42 to extend to the outside of the riveting seat 23. Then the abutment roller 36 is separated from the guide block 211. Under the compression force of the reset spring 3 213, the guide block 211 is pushed to drive the limiting block 212 to engage with the corresponding limiting groove 49 to limit the upward movement of the movable plate 41 in the riveting seat 23, so as to prepare for the clamping and feeding of the next rivet. Finally, the abutment roller 36 is separated from the guide plate 24, and the elastic clamping plate 31 is moved to the accommodating groove 14 under the compression force of the reset spring 1 35 to facilitate the removal and placement of the anastomosis device.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic riveting jig for producing medical parts, comprising a base (1), a placement table (11) being fixedly connected to the top of the base (1), and a placement groove (12) being provided on the top of the placement table (11), characterized in that: The top of the base (1) is located on one side of the placement table (11) and is fixedly connected to a fixing frame (2), and a linear slide (21) is fixedly installed on the fixing frame (2), the bottom of the linear slide (21) is bolted to an electric push rod (22), the end of the telescopic rod of the electric push rod (22) is fixedly connected to a riveting seat (23), and the bottom of the riveting seat (23) is located on both sides of the placement table (11) and is symmetrically fixedly connected to guide plates (24); A clamping assembly (3) is arranged on the placement table (11), and the clamping assembly (3) comprises elastic clamping plates (31) symmetrically arranged on both sides of the placement groove (12), and an abutment seat (32) matching with a corresponding guide plate (24) is arranged on the opposite side of the elastic clamping plates (31); The riveting seat (23) is provided with a gripping assembly (4), the gripping assembly (4) comprising a movable plate (41), the bottom of the movable plate (41) being provided with gripping claws (42) distributed in a circular array with three groups of relative electric push rods (22), and the top side of the base (1) being provided with a rivet conveying pipe (13) matched with the gripping assembly (4); The placement groove (12) has symmetrically arranged receiving grooves (14) on both sides, the receiving groove (14) has a mounting plate (33) fixedly connected to the elastic clamp (31), and one side of the mounting plate (33) has a plurality of slide bars (34) fixedly connected to the corresponding abutment seats (32) fixedly connected at equal intervals, the slide bars (34) are slidably connected to the placement platform (11), a return spring (35) is fixedly connected between the abutment seat (32) and the placement platform (11) and on the outside of the corresponding slide bar (34), and an abutment roller (36) is rotatably connected to the abutment seat (32); The riveting seat (23) has a cavity (25) inside thereof which is slidably connected to the movable plate (41); the top of each clamping jaw (42) is fixedly connected to a limit slider (43); the bottom of the movable plate (41) has a limit slide groove (44) which is slidably connected to the corresponding limit slider (43); and the bottom of the cavity (25) has a through groove (26) through which the corresponding clamping jaw (42) passes. A first guiding slope is provided at the bottom of one side of the guide plate (24) close to the placement table (11); a clamping tension spring (45) is fixedly connected between the limiting slide block (43) and the limiting slide groove (44); and a second guiding slope is provided at the bottom of the opposite side of each clamping claw (42); A rotating rod (27) is rotatably connected to the top of the cavity (25) and is located between the plurality of groups of clamping jaws (42). The rotating rod (27) extends to the outside of the riveting seat (23), and a riveting head (28) is fixedly connected to the free end of the rotating rod (27). A through hole (46) is formed on the movable plate (41) for the rotating rod (27) to pass through. A guide pin (47) is fixedly connected to the annular inner wall of the through hole (46), a threaded guide groove (29) matching the corresponding guide pin (47) is formed on the annular outer wall of the rotating rod (27), and a plurality of return springs (48) distributed in a rectangular array are fixedly connected between the top of the movable plate (41) and the cavity (25).

2. The automatic riveting jig for producing medical parts according to claim 1, characterized in that: An adjusting frame (15) is fixedly connected to a side of the placement table (11) away from the rivet conveying pipe (13); a screw rod (16) is rotatably connected to the inside of the adjusting frame (15); a movable seat (17) is threadedly connected to the screw rod (16) and is slidably connected to the adjusting frame (15); a positioning block (18) is bolted to the top of the movable seat (17); and a positioning groove (19) adapted to the end of the rivet support seat is provided on a side of the positioning block (18) close to the placement table (11).

3. The automatic riveting jig for producing medical parts according to claim 1, characterized in that: The guide plate (24) is provided with a mounting groove (210) in communication with the cavity (25), a guide block (211) is slidably connected in the mounting groove (210), and one side of the guide block (211) extends through and extends to the outside of the guide plate (24), a limit block (212) is fixedly connected to the top of the guide block (211), a limit groove (49) adapted to the corresponding limit block (212) is provided on the movable plate (41), a return spring three (213) is symmetrically fixedly connected between the guide block (211) and the mounting groove (210), and a guide inclined surface three is provided on the bottom of one side of the guide block (211) located outside the mounting groove (210).

4. The automatic riveting jig for producing medical parts according to claim 1, characterized in that: A limiting rod (214) is fixedly connected to one side of the riveting seat (23), and a sliding seat (215) is slidably connected to the limiting rod (214). A sliding rail (216) slidably connected to the sliding seat (215) is fixedly connected to the fixing frame (2).

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