Automatic tapping and thread returning device

Abstract

The utility model relates to an automatic tapping and thread returning device, and relates to the technical field of tapping machines. The device comprises a frame body; the workpiece moving assembly comprises at least one base table used for placing nuts, and the base table is movably arranged on the frame body; and the tapping assembly is movably arranged on the frame body through a lifting assembly corresponding to the base table, the lifting assembly drives the tapping assembly to be close to or away from the base table, and the tapping assembly is used for tapping a threaded hole in the nut. The thread returning and tapping device has the effect of improving the machining efficiency of thread returning and tapping of the nut with the multiple threaded holes.

Description

Technical Field

[0001] The present application relates to the technical field of tapping machines, and in particular to an automatic tapping and threading device. Background Art

[0002] Sensor bracket nuts are mainly used to install and fix sensors. Common sensor bracket nuts have many specifications. For example, refer to Figure 1 The sensor bracket nut 100 is provided with an opening 101, and threaded holes 102 are provided on opposite sides of the opening 101. A mounting ear 103 is also provided on one side of the sensor bracket nut 100, and a mounting hole 104 is provided on the mounting ear 103.

[0003] In practical applications, projection welding needs to be performed on the position of the sensor support frame nut near the threaded hole, and then the threaded hole is manually tapped after electrophoresis. The existing tapping machine can solve the problems of low efficiency and unstable processing quality caused by manual processing, but the existing tapping machine is mainly suitable for workpieces that only need one threaded hole to be tapped. Processing workpieces with multiple threaded holes to be tapped requires manual adjustment of the position of the workpiece, which affects work efficiency. Utility Model Content

[0004] In order to improve the processing efficiency of back-tapping of a nut with multiple threaded holes, the present application provides an automatic back-tapping device.

[0005] The automatic tapping device provided in this application adopts the following technical solution:

[0006] An automatic tapping and threading device comprises a frame; a workpiece moving assembly, comprising at least one base for placing a nut, and the base is movably arranged on the frame; a tapping assembly, corresponding to the base and movably arranged on the frame via a lifting assembly, the lifting assembly is used to drive the tapping assembly to approach or move away from the base, and the tapping assembly is used to tap the threaded hole on the nut.

[0007] By adopting the above technical solution, the nut is first placed on the base before tapping, and by moving the base, one of the threaded holes of the nut is located directly below the tapping component, and then the lifting component is used to drive the tapping component close to the base, so that the tapping component can tap the threaded hole; by repeating the above steps, the tapping component can complete the tapping of all the threaded holes on the nut in turn, thereby realizing automatic tapping of nuts with multiple threaded holes, thereby improving work efficiency.

[0008] Preferably, the workpiece moving assembly further comprises a fixed moving driving member, one end of the base is connected to an output end of the moving driving member, and the other end of the base is used for placing the nut.

[0009] By adopting the above technical solution, the mobile driving member is used to drive the base to achieve movement based on the frame.

[0010] Preferably, a positioning piece is provided on the base, and the nut is placed above the positioning piece away from the base.

[0011] By adopting the above technical solution, the position of the nut on the base can be limited by using the positioning piece.

[0012] Preferably, a positioning pin is provided on the base, and a positioning hole which is plugged into and cooperates with the positioning pin is provided on the base near the positioning piece, and the positioning pin is inserted into the mounting hole and the positioning hole of the nut in sequence.

[0013] By adopting the above technical solution and setting the positioning pin, the specific position of the nut on the positioning member can be limited, so that the multiple threaded holes can correspond to the tapping components in sequence by moving the base.

[0014] Preferably, a clamping assembly is provided on the base, and the clamping assembly includes a clamping drive and a clamping member, one end of the clamping member is connected to the output end of the clamping drive via a connecting rod, and the other end of the clamping member is arranged close to the base, and the clamping drive is used to drive the clamping member to approach or move away from the base.

[0015] By adopting the above technical solution, when the nut is placed on the base, the clamping drive member drives the clamping member close to the base, thereby achieving the clamping positioning of the nut and avoiding displacement of the nut during the tapping process as much as possible.

[0016] Preferably, a through hole is provided on the connecting rod, and the through hole and the pressing member are slidingly matched.

[0017] By adopting the above technical solution and utilizing the through hole and the pressing piece with sliding fit, the distance between the pressing piece and the base can be adjusted to accommodate nuts of different specifications.

[0018] Preferably, the tapping assembly comprises a tapping drive and a tap, one end of the tap is connected to an output end of the tapping drive; the other end of the tap faces the base, and the tapping drive is used to drive the tap to rotate.

[0019] By adopting the above technical solution, when the tapping drive member is close to the nut on the base, the tapping drive member can drive the tap to rotate, thereby tapping the projection-welded nut.

[0020] Preferably, the lifting assembly includes a lifting drive and a lifting plate, the lifting drive is installed on the frame, the lifting plate is installed at the output end of the lifting drive, the tapping assembly is installed on the lifting plate, and the lifting drive is used to drive the lifting plate to approach or move away from the base.

[0021] By adopting the above technical solution, the lifting plate is driven by the lifting drive member to perform lifting motion, thereby driving the tapping assembly to achieve lifting motion.

[0022] Preferably, the lifting drive component further comprises a guide rail and a slider that are slidably matched, the guide rail is arranged on the frame, and the length direction of the guide rail is parallel to the moving direction of the lifting plate, and the slider is connected to the lifting plate.

[0023] By adopting the above technical solution, the slidingly matched guide rail and slider can improve the stability of the movement of the lifting plate, thereby improving the stability of the movement of the tapping assembly.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By setting a workpiece moving component, the moving driving component can drive the base to move, thereby driving the nut to move, so that the tapping component can tap multiple threaded holes on the nut to improve work efficiency;

[0026] 2. By setting the positioning piece and the positioning pin, the position of the nut based on the base can be limited. Combined with the clamping assembly, the nut can be kept as stable as possible during the tapping process, thereby improving the quality of the tapping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the structure of the nut in this embodiment;

[0028] Figure 2 It is a schematic diagram of the overall structure of this embodiment;

[0029] Figure 3 It is a schematic diagram of the exploded structure mainly used to show the lifting assembly and the tapping assembly in this embodiment;

[0030] Figure 4 It is a schematic diagram of the exploded structure mainly used to show the workpiece moving component and the clamping component in this embodiment.

[0031] 1. nut; 101. opening; 102. threaded hole; 103. mounting ear; 104. mounting hole; 1. frame; 11. base; 12. support plate; 2. lifting assembly; 21. lifting drive member; 22. fixing plate; 23. lifting plate; 24. connecting block; 25. plug-in hole; 26. guide rail; 27. slider; 3. tapping assembly; 31. tapping drive member; 32. tap; 33. mounting member; 34. mounting rod; 4. workpiece moving assembly; 41. base; 42. moving drive member; 43. positioning member; 431. positioning protrusion; 44. positioning hole; 45. positioning pin; 5. clamping assembly; 51. clamping drive member; 52. clamping member; 53. mounting plate; 54. connecting rod; 541. through hole. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-4 This application is described in further detail.

[0033] Reference Figure 1 The sensor bracket nut 100 is provided with an opening 101, and threaded holes 102 are provided on opposite sides of the opening 101, and the centers of the threaded holes 102 are located on the same diameter of the nut 100. A mounting ear 103 is also provided on one side of the nut 100, and a mounting hole 104 is provided on the mounting ear 103.

[0034] The embodiment of the present application discloses an automatic tapping device.

[0035] Reference Figure 1 and Figure 2 An automatic tapping and re-threading device includes a frame 1, and the frame 1 includes at least one support plate 12, taking two support plates 12 as an example. A lifting assembly 2, a tapping assembly 3 and a workpiece moving assembly 4 are arranged on each support plate 12. The workpiece moving assembly 4 includes a plurality of bases 41 for placing nuts 100, and the bases 41 are movably arranged on the support plates 12, so that the plurality of threaded holes 102 on the nuts 100 can be moved in sequence close to the output end of the tapping assembly 3. The lifting assembly 2, the tapping assembly 3 and the base 41 are all located on the same side of the support plate 12, and the lifting assembly 2 is used to drive the tapping assembly 3 to approach or move away from the base 41, and when the tapping assembly 3 approaches the base 41, the nut 100 can be tapped, thereby realizing the work of automatic re-threading and improving work efficiency. A clamping assembly 5 for clamping the limit nut 100 is also provided on the base 41 to avoid displacement of the nut 100 as much as possible during the tapping process.

[0036] refer to Figure 2The frame 1 further includes a base 11, which is in the shape of a rectangular plate as a whole. A plurality of support plates 12 are arranged on the length direction surface of the base 11 along the length direction of the base 11, and a plurality of support plates 12 are arranged near the length direction side edge of the base 11. The support plates 12 are in the shape of a rectangular plate as a whole, the plate surface of the support plates 12 is perpendicular to the plate surface of the base 11, and the side edges of the support plates 12 near the base 11 are parallel to the length direction of the base 11.

[0037] refer to Figure 3 The lifting assembly 2 includes a lifting drive 21, a fixed plate 22 and a lifting plate 23. In this embodiment, the lifting drive 21 is set as a lifting cylinder. The fixed plate 22 is in the shape of a rectangular plate. The fixed plate 22 is vertically arranged on the end surface of the support plate 12 away from the base 11, and one end of the fixed plate 22 in the length direction is connected to the support plate 12. The lifting drive 21 is installed above the fixed plate 22. The piston rod of the lifting drive 21 passes through the fixed plate 22 and is arranged downward, and the end of the piston rod close to the base 41 is provided with a connecting block 24 for connecting with the lifting plate 23. The length direction surface of the lifting plate 23 is parallel to the length direction surface of the support plate 12. The end of the lifting plate 23 away from the base 11 is provided with a plug hole 25 for plugging and matching with the connecting block 24, and the connecting block 24 is installed on the lifting plate 23 through a threaded structure. The side of the lifting plate 23 away from the support plate 12 is used to install the tapping assembly 3. The lifting drive 21 drives the connecting block 24 to move up and down, thereby driving the lifting plate 23 to move up and down, and then driving the tapping assembly 3 to move up and down.

[0038] In addition, the lifting drive 21 also includes a guide rail 26 disposed on the support plate 12, and a slider 27 that slides with the guide rail 26. The guide rail 26 and the slider 27 are both located between the support plate 12 and the lifting plate 23, the length direction of the guide rail 26 is parallel to the lifting direction of the lifting plate 23, the slider 27 is slidably connected to the side of the guide rail 26 away from the support plate 12, and the side of the slider 27 away from the support plate 12 is connected to the side of the lifting plate 23 close to the support plate 12, and the slider 27 is installed at one end of the lifting plate 23 close to the base 11. By providing the guide rail 26 and the slider 27, the tapping assembly 3 can achieve stable lifting and lowering movement, and the accuracy of tapping the threaded hole 102 can be improved.

[0039] The tapping assembly 3 includes a tapping drive 31, a tap 32, and a mounting member 33 and a mounting rod 34 for fixing the tapping drive 31, and the mounting member 33 and the mounting rod 34 are arranged on the side of the lifting plate 23 away from the support plate 12. In this embodiment, the tapping drive 31 is set as a motor, and the tapping drive 31 is used to drive the tap 32 to rotate, so that the nut 100 can be tapped back. The tapping drive 31 is cylindrical as a whole, and the length direction of the tapping drive 31 is parallel to the lifting direction of the lifting plate 23. The tapping drive 31 is installed on the lifting plate 23 through the mounting member 33 and the mounting rod 34, and the mounting rod 34 is located above the mounting member 33. The tap 32 is arranged below the tapping drive 31 close to the base 11, one end of the tap 32 is connected to the output end of the tapping drive 31, and the length direction of the tap 32 is parallel to the length direction of the tapping drive 31.

[0040] refer to Figure 3 and Figure 4 , the workpiece moving assembly 4 also includes a moving driving member 42 for moving the base 41. The moving driving member 42 is located on the side of the support plate 12 away from the nut 100, and the moving driving member 42 is installed on other external devices. In this embodiment, the moving driving member 42 is set as a cylinder. The base 41 is in the shape of a rectangular plate as a whole, and the length direction surface of the base 41 is parallel to the length direction surface of the base 11. One end of the base 41 in the length direction slides through the support plate 12 and is connected to the output end of the moving driving member 42, so that the moving driving member 42 can drive the base 41 to move closer to or away from the support plate 12; the other end of the base 41 in the length direction is away from the base 11. A positioning member 43 is arranged above. The positioning member 43 is cylindrical as a whole, and the shape of the positioning member 43 matches the shape of the nut 100, and a positioning protrusion 431 is arranged above the positioning member 43 corresponding to the opening 101. Two positioning holes 44 are arranged on the base 41 perpendicular to its length direction and in parallel with the mounting holes 104. Positioning pins 45 are arranged in the positioning holes 44, and the positioning pins 45 are plugged into the mounting holes 104. When the nut 100 is placed on the positioning member 43, the positioning pins 45 are inserted into the mounting holes 104 and the positioning holes 44 in sequence, so that the straight line where the two threaded holes 102 on the nut 100 are located is parallel to the length direction of the base 41.

[0041] The clamping assembly 5 includes a clamping drive 51, a clamping member 52 and a mounting plate 53. In this embodiment, the clamping drive 51 is set as a cylinder. The mounting plate 53 is in the shape of a rectangular plate as a whole. The surface of the mounting plate 53 is parallel to the surface of the base 41, and the length direction of the mounting plate 53 is perpendicular to the length direction of the base 41. The mounting plate 53 is arranged below the base 41, and one end of the mounting plate 53 in the length direction is connected to the base 41 and the end away from the support plate 12. The clamping drive 51 is installed above the mounting plate 53, and the clamping drive 51 is arranged at the end of the mounting plate 53 away from the base 41, and the driving end of the clamping drive 51 is arranged upward. The clamping member 52 is in the shape of a cylinder as a whole, and the length direction of the clamping member 52 is perpendicular to the moving direction of the nut 100. One end of the clamping member 52 is connected to the output end of the clamping drive 51 through a connecting rod 54, and the other end of the clamping member 52 is arranged downward and used to press the nut 100 against the positioning member 43. When the workpiece moving assembly 4 moves the nut 100 to the designated position, the clamping driving member 51 drives the clamping member 52 to move downward, so that the clamping member 52 can clamp and position the nut 100, thereby avoiding as much as possible the unnecessary displacement of the nut 100 during the threading process, thereby improving the processing accuracy. Preferably, the connecting rod 54 is provided with a through hole 541 corresponding to the clamping member 52, and the through hole 541 and the clamping member 52 are slidably matched, and the distance between the clamping member 52 and the base 41 can be adjusted by using a bolt to adapt to nuts 100 of different sizes.

[0042] The implementation principle of an automatic tapping and threading device in the embodiment of the present application is as follows: before threading and threading, first place the nut 100 on the positioning member 43 and install the positioning pin 45; the moving driving member 42 drives the base 41 to move so that one of the threaded holes 102 of the nut 100 is located directly below the tap 32, and then the lifting component 2 drives the tapping component 3 to approach the base 41 so that the tap 32 can tap the threaded hole 102. After the tapping action is completed, the lifting component 2 drives the tapping component 3 away from the base 41; repeat the above process so that the tapping component 3 can complete the tapping of another threaded hole 102. Through the above structure, the threading work of the nut 100 with multiple threaded holes 102 can be automatically realized, thereby improving work efficiency.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic tapping device, characterized in that: include: Frame (1); A workpiece moving assembly (4) comprising at least one base (41) for placing a nut (100), wherein the base (41) is movably arranged on the frame (1); a tapping assembly (3), corresponding to the base (41) and movably arranged on the frame (1) via a lifting assembly (2), the lifting assembly (2) being used to drive the tapping assembly (3) to move closer to or away from the base (41), and the tapping assembly (3) being used to tap the threaded hole (102) on the nut (100); The workpiece moving assembly (4) further comprises a fixed moving driving member (42), one end of the base (41) is connected to the output end of the moving driving member (42), and the other end of the base (41) is used to place the nut (100); a positioning member (43) is arranged on the base (41), and the nut (100) is placed above the positioning member (43) away from the base (41); a positioning pin (45) is arranged on the base (41), and a positioning hole (44) which is plugged into and matched with the positioning pin (45) is arranged on the base (41) near the positioning member (43), and the positioning pin (45) is inserted into the mounting hole (104) and the positioning hole (44) of the nut (100) in sequence.

2. The automatic threading device according to claim 1, characterized in that: A clamping assembly (5) is arranged on the base (41), and the clamping assembly (5) comprises a clamping drive (51) and a clamping member (52), one end of the clamping member (52) is connected to the output end of the clamping drive (51) via a connecting rod (54), and the other end of the clamping member (52) is arranged close to the base (41), and the clamping drive (51) is used to drive the clamping member (52) to approach or move away from the base (41).

3. The automatic tapping device according to claim 2, characterized in that: A through hole (541) is provided on the connecting rod (54), and the through hole (541) and the pressing piece (52) are slidably matched.

4. The automatic tapping device according to claim 1, characterized in that: The tapping assembly (3) comprises a tapping drive (31) and a tap (32), one end of the tap (32) being connected to the output end of the tapping drive (31); the other end of the tap (32) is facing the base (41), and the tapping drive (31) is used to drive the tap (32) to rotate.

5. The automatic threading device according to claim 1, characterized in that: The lifting assembly (2) comprises a lifting drive member (21) and a lifting plate (23); the lifting drive member (21) is mounted on the frame (1); the lifting plate (23) is mounted on an output end of the lifting drive member (21); the tapping assembly (3) is mounted on the lifting plate (23); and the lifting drive member (21) is used to drive the lifting plate (23) to move closer to or away from the base (41).

6. The automatic threading device according to claim 5, characterized in that: The lifting drive member (21) further comprises a guide rail (26) and a slider (27) that are slidably matched, wherein the guide rail (26) is arranged on the frame (1), and the length direction of the guide rail (26) is parallel to the moving direction of the lifting plate (23), and the slider (27) is connected to the lifting plate (23).

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