Product screw and nut automatic assembling device

Abstract

The utility model discloses an automatic product screw and nut assembling device which comprises a working table, a vibration feeding disc, a feeding track, a feeding positioning assembly, a nut assembling assembly and an assembling positioning assembly, the vibration feeding disc is fixedly installed on the working table, a discharging port of the vibration feeding disc is connected with the feeding track, a discharging port of the feeding track is connected with the feeding positioning assembly, and a discharging port of the nut assembling assembly is connected with the assembling positioning assembly. A nut assembling assembly is erected above the feeding positioning assembly, an assembling positioning assembly is arranged in the moving stroke coverage range of the nut assembling assembly, the assembling positioning assembly comprises a rotating power device, a rotating table, a clamping air cylinder and an assembling jig, and the rotating output end of the rotating power device is fixedly connected with the rotating table; two opposite clamping air cylinders are fixedly installed at the center of the upper end face of the rotating table, cylinder heads of the clamping air cylinders are connected with an assembling jig, the assembling jig is fixedly installed on the rotating table, the nut and screw assembling machine is simple in structure, two nuts and two screws can be assembled at the same time, and working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of automated assembly equipment, and more particularly to an automatic assembly device for product screws and nuts. Background Technology

[0002] There is a product whose two sides need to be fixed to the corresponding main body with screws. During the production of this product, the main body of the product needs to be matched with the screws on both sides. In order to facilitate the matching, nuts and screws need to be locked on both sides of the product to achieve the effect of packaged kit. The existing technical solution is to assemble manually, which is a cumbersome process and has low work efficiency. In order to achieve the effect of rapid assembly, an automated assembly device needs to be designed. To achieve the automated assembly structure, firstly, a fixture is needed to fix the screws and the product, so as to facilitate the positioning and installation of nuts. Secondly, an automated structure for automatic nut feeding and locking is needed, which works in conjunction with the fixture for fixing screws and the product to assemble, in order to improve work efficiency and reduce labor costs. Summary of the Invention

[0003] The main objective of this invention is to provide an automatic assembly device for product screws and nuts, including a fixture for positioning screws and product assembly, and an automatic nut feeding and assembly structure that cooperates with the fixture, so as to achieve the effect of automated product assembly and improve work efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an automatic assembly device for product screws and nuts, comprising a worktable, a vibrating feeding plate fixedly installed on the worktable, a feeding track, a feeding positioning component, a nut assembly component, and an assembly positioning component. The discharge port of the vibrating feeding plate is connected to the feeding track, and the discharge port of the feeding track is connected to the feeding positioning component. The nut assembly component is mounted above the feeding positioning component. The assembly positioning component is located within the travel range of the nut assembly component. The assembly positioning component includes a rotary power device, a rotary table, a clamping cylinder, and an assembly fixture. The rotary output end of the rotary power device is fixedly connected to the rotary table. Two opposing clamping cylinders are fixedly installed at the center of the upper end face of the rotary table. The cylinder head of the clamping cylinder is connected to the assembly fixture, and the assembly fixture is fixedly mounted on the rotary table.

[0005] Furthermore, the loading and positioning assembly includes a transfer fixing frame, a transfer linear module, and a loading fixture. The transfer fixing frame is fixedly mounted with the transfer linear module, and the loading fixture is connected to the transfer linear module.

[0006] Furthermore, the feeding fixture includes a fixture housing, a contoured fixture plate, and an elastic connecting assembly. The upper surface of the fixture housing has two symmetrical limiting connecting grooves. The contoured fixture plate is elastically raised and lowered within the limiting connecting grooves via the elastic connecting assembly. The upper surface of the contoured fixture plate is fixedly provided with a nut contoured groove.

[0007] Furthermore, the nut assembly includes a linear reciprocating module, a lifting module, a fixed connecting plate, a locking motor, and a nut locking head. The linear reciprocating module is connected to the lifting module, and the lifting module is connected to the fixed connecting plate. Two locking motors are fixedly installed on the fixed connecting plate, and the power heads of the locking motors pass through the fixed connecting plate and are fixedly connected to the nut locking heads.

[0008] Furthermore, the nut locking head includes an upper connecting part and a lower connecting part. The upper connecting part has a first connecting hole at its upper end that is fixedly connected to the output end of the locking motor. The lower end face of the upper connecting part has a connecting boss at its center. A magnetic suction part is fixedly installed on the lower end face of the connecting boss. The upper end face of the lower connecting part has a locking hole that matches the connecting boss. The lower end face of the lower connecting part has a nut-shaped hole that communicates with the locking hole.

[0009] Furthermore, the assembly fixture includes a lower fixture plate, an upper fixture plate, and a limiting clamping plate. The upper fixture plate is fixedly installed on the upper surface of the lower fixture plate. A sliding connection groove is provided on the upper fixture plate, and the limiting clamping plate is slidably installed in the sliding connection groove. A screw-shaped hole is fixedly provided on the clamping surface of the limiting clamping plate and the upper fixture plate. A connecting post is also connected to the limiting clamping plate, and the other end of the connecting post is connected to the output end of the clamping cylinder. A limiting post is also fixedly provided on the upper surface of the upper fixture plate, and a screw head-shaped groove is provided on the lower fixture plate below the screw-shaped hole.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] This invention achieves automated assembly while improving the assembly efficiency of screws and the product body through a dual-station assembly fixture. It also enables the simultaneous assembly of two nuts through a double-headed nut assembly component, and the nut feeding fixture is a single fixture that can feed two nuts at the same time, reducing equipment costs and improving the compactness of the equipment. Attached Figure Description

[0012] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0013] Figure 2 This is a three-dimensional schematic diagram of the feeding fixture of this utility model;

[0014] Figure 3 This is a three-dimensional schematic diagram of the assembly fixture of this utility model;

[0015] Figure 4 This is a three-dimensional schematic diagram of the nut locking head of this utility model;

[0016] Figure 5 This is a three-dimensional schematic diagram of the assembly fixture and the product after assembly.

[0017] Reference numerals: 1. Workbench; 2. Feeding rail; 3. Feeding positioning assembly; 4. Nut assembly assembly; 5. Assembly positioning assembly; 6. Rotary power unit; 7. Rotary table; 8. Clamping cylinder; 9. Assembly fixture; 10. Transfer fixing frame; 11. Transfer linear module; 12. Feeding fixture; 13. Fixture outer shell; 14. Contouring fixture plate; 16. Limiting connecting groove; 17. Nut contouring groove; 18. Linear reciprocating module; 19. Lifting module; 20. Fixed connecting plate; 21. Locking motor; 22. Nut locking head; 23. Upper connecting part; 24. Lower connecting part; 25. Lower fixture plate; 26. Upper fixture plate; 27. Limiting clamping plate; 28. Sliding connecting groove; 29. ​​Screw contouring hole; 30. Connecting column; 31. Support column; 32. Elastic connecting hole; 33. Product body; 34. Product screw; 35. Product nut. Detailed Implementation

[0018] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0019] See Figure 1 As shown, an automatic product screw and nut assembly device includes a worktable 1, a nut assembly structure fixedly mounted on the worktable 1, and an assembly structure for product screws 34 and product body 33. The assembly structure for product screws 34 and product body 33 is an assembly positioning component 5, combined with... Figure 3 and Figure 5As shown, the assembly positioning component 5 includes a rotary power device 6 (the rotary power device is an existing power module of the type of rotary motor that can drive the rotary table to rotate), a rotary table 7, a clamping cylinder 8, and an assembly fixture 9. The rotary output end of the rotary power device 6 is fixedly connected to the rotary table 7. The rotation of the rotary power device 6 drives the rotary table 7 connected above it to rotate. The rotary power device 6 realizes the rotational displacement of the two-station fixtures (two assembly fixtures 9), thereby realizing that the two assembly fixtures 9 are respectively positioned at the loading and unloading station of the product screws 34 and the product, and at the assembly station of the nut and the product screws 34. In order to achieve precise positioning, those skilled in the art can easily imagine that: a photoelectric sensor or other sensor for rotational positioning, as well as a positioning component that cooperates with the sensor, can be installed on the bottom of the assembly fixture 9 to achieve precise rotational positioning of the assembly fixture. Two opposing clamping cylinders 8 are fixedly installed at the center of the upper end face of the rotary table 7. The cylinder head of the clamping cylinder 8 is connected to an assembly fixture 9, which is fixedly installed on the rotary table 7. The assembly fixture 9 includes a lower fixture plate 25, an upper fixture plate 26, and a limiting clamping plate 27. The upper fixture plate 26 is fixedly installed on the upper end face of the lower fixture plate 25. A sliding connecting groove 28 is provided on the upper fixture plate 26. The limiting clamping plate 27 is slidably installed in the sliding connecting groove 28. A screw-shaped hole 29 is provided on the opening and closing clamping surface of the limiting clamping plate 27 and the upper fixture plate 26. A connecting post 30 is also connected to the limiting clamping plate 27. The other end of the connecting post 30 passes through the upper fixture plate and is connected to the output end of the clamping cylinder 8. A limiting post is also fixedly provided on the upper end face of the upper fixture plate 26. A screw head shaping groove is also provided on the lower fixture plate below the screw shaping hole.

[0020] The product screw 34 and the product body are clamped by an external robotic arm. First, the product screw 34 is loaded by the robotic arm. The product screw 34 is loaded upside down, that is, the starting head of the product screw 34 is placed in the screw head contour groove. Then, the screw shank of the product screw 34 is clamped by the limiting clamp 27, so that the screw shank of the product screw 34 is fixed in the screw contour hole 29, thereby achieving the positioning of the screw. Then, the product body is loaded. The product body is clamped by the robotic arm and matched with the two screws, so that the screw passes through the through hole of the product body. The limiting post is used to limit the product body and prevent the product body from tilting.

[0021] Combination Figure 1-2 and Figure 4As shown, the nut assembly structure includes a vibrating feeding plate (not shown), a feeding track 2, a feeding positioning component 3, and a nut assembly component 4. The outlet of the vibrating feeding plate is connected to the feeding track 2, and the vibrating feeding plate realizes the vibration feeding of the nuts, that is, the vibrating feeding plate realizes the single-channel arrangement of the nuts to be fed into the feeding track 2. The outlet of the feeding track 2 is connected to the feeding positioning component 3, and the nuts enter the nut contour groove of the feeding positioning component 3 through the feeding track 2. In order to make it easier for the nuts to enter the nut contour groove, those skilled in the art will know that a feeding device is set above the feeding track 2. The feeding device pushes the nuts one by one into the nut contour groove. The feeding device can be a mechanical structure in the prior art. This structure is not the main technical point of this application, so the applicant has not described the structure.

[0022] A nut assembly assembly 4 is mounted above the feeding and positioning assembly 3. An assembly positioning assembly 5 is located within the travel range of the nut assembly assembly 4. The nut assembly assembly 4 picks up the nut from the feeding and positioning assembly 3 and transfers it to the assembly fixture 9, which has already been assembled with the screw and the main body of the product, for the assembly of the nut and the screw.

[0023] The loading and positioning assembly 3 includes a transfer fixing frame 10, a transfer linear module 11, and a loading fixture 12. The transfer fixing frame 10 is fixedly installed with the transfer linear module 11, and the loading fixture 12 is connected to the transfer linear module 11.

[0024] The feeding fixture 12 includes a fixture housing 13, a contoured fixture plate 14, and an elastic connecting assembly. The upper end face of the fixture housing 13 has two symmetrical limiting connecting grooves 16. The contoured fixture plate 14 is elastically raised and lowered within the limiting connecting grooves 16 via the elastic connecting assembly. The upper end face of the contoured fixture plate 14 is fixedly provided with a nut contoured groove 17.

[0025] The elastic connection assembly may include a spring and a linear guide rod. Two or more elastic connection holes 32 are opened in the limiting connection groove 16. The linear guide rod is slidably installed in the elastic connection hole 32, and a spring is fitted on the linear guide rod. The spring is located between the lower end face of the contour jig plate and the bottom of the limiting connection groove, that is, the contour jig plate 14 can be pressed down and then return to its original position. Of course, the stroke of the linear guide rod can be controlled by limiting blocks or other means.

[0026] A through support hole can be made at the bottom of the nut contour groove 17, and a support column 31 can be slidably connected in the support hole. When the contour jig plate 14 falls, the support column 31 supports the nut and prevents it from falling, so that the nut can better enter the nut locking head 22.

[0027] The nut assembly 4 includes a linear reciprocating module 18, a lifting module 19, a fixed connecting plate 20, a locking motor 21, and a nut locking head 22. The linear reciprocating module is connected to the lifting module 19, and the lifting module 19 is connected to the fixed connecting plate 20. Two locking motors 21 are fixedly installed on the fixed connecting plate 20, and the power heads of the locking motors 21 pass through the fixed connecting plate 20 and are fixedly connected to the nut locking heads 22.

[0028] The nut locking head 22 includes an upper connecting part 23 and a lower connecting part 24. The upper connecting part 23 has a first connecting hole at its upper part that is fixedly connected to the output end of the locking motor 21. The lower end face of the upper connecting part 23 has a connecting boss at its center. A magnetic suction part is fixedly installed on the lower end face of the connecting boss. The upper end face of the lower connecting part 24 has a locking hole that matches the connecting boss. The lower end face of the lower connecting part 24 has a nut-shaped hole that communicates with the locking hole.

[0029] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. An automatic assembly device for product screws and nuts, comprising a worktable (1), a vibrating feeding plate fixedly mounted on the worktable (1), a feeding track (2), a feeding positioning component (3), a nut assembly component (4), and an assembly positioning component (5), wherein the discharge port of the vibrating feeding plate is connected to the feeding track (2), the discharge port of the feeding track (2) is connected to the feeding positioning component (3), the nut assembly component (4) is mounted above the feeding positioning component (3), and the assembly positioning component (5) is provided within the travel range of the nut assembly component (4), characterized in that: The assembly positioning component (5) includes a rotary power unit (6), a rotary table (7), a clamping cylinder (8), and an assembly fixture (9). The rotary output end of the rotary power unit (6) is fixedly connected to the rotary table (7). Two opposing clamping cylinders (8) are fixedly installed at the center of the upper end face of the rotary table (7). The cylinder head of the clamping cylinder (8) is connected to the assembly fixture (9), which is fixedly installed on the rotary table (7). The assembly fixture (9) includes a lower fixture plate (25), an upper fixture plate (26), and a limiting clamping plate (27). The upper end face of the lower fixture plate (25) is fixedly mounted with... The upper jig plate (26) is provided with a sliding connection groove (28). A limiting clamping plate (27) is slidably installed in the sliding connection groove (28). A screw profile hole (29) is fixedly opened on the clamping surface of the limiting clamping plate (27) and the upper jig plate (26). A connecting post (30) is also connected to the limiting clamping plate (27). The other end of the connecting post (30) is connected to the output end of the clamping cylinder (8). A limiting post is also fixedly provided on the upper end face of the upper jig plate (26). A screw head profile groove is also opened below the screw profile hole (29) on the lower jig plate (25).

2. The automatic assembly device for product screws and nuts according to claim 1, characterized in that: The loading and positioning assembly (3) includes a transfer fixing frame (10), a transfer linear module (11) and a loading fixture (12). The transfer fixing frame (10) is fixedly installed with the transfer linear module (11) and the loading fixture (12) is connected to the transfer linear module (11).

3. The automatic assembly device for product screws and nuts according to claim 2, characterized in that: The loading fixture (12) includes a fixture housing (13), a contoured fixture plate (14), and an elastic connecting assembly. The upper end face of the fixture housing (13) has two symmetrical limiting connecting grooves (16). The contoured fixture plate (14) is elastically raised and lowered in the limiting connecting grooves (16) through the elastic connecting assembly. The upper end face of the contoured fixture plate (14) is fixedly provided with a nut contoured groove (17).

4. The automatic assembly device for product screws and nuts according to claim 1, characterized in that: The nut assembly (4) includes a linear reciprocating module (18), a lifting module (19), a fixed connecting plate (20), a locking motor (21), and a nut locking head (22). The linear reciprocating module (18) is connected to the lifting module (19), and the lifting module (19) is connected to the fixed connecting plate (20). Two locking motors (21) are fixedly installed on the fixed connecting plate (20), and the power head of the locking motor (21) passes through the fixed connecting plate (20) and is fixedly connected to the nut locking head (22).

5. The automatic assembly device for product screws and nuts according to claim 4, characterized in that: The nut locking head (22) includes an upper connecting part (23) and a lower connecting part (24). The upper connecting part (23) has a first connecting hole at the top that is fixedly connected to the output end of the locking motor (21). The lower end face of the upper connecting part (23) has a connecting boss at the center. The lower end face of the connecting boss is fixedly installed with a magnetic suction part. The upper end face of the lower connecting part (24) has a locking hole that matches the connecting boss. The lower end face of the lower connecting part (24) has a nut-shaped hole that communicates with the locking hole.

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