Automatic drilling and tapping machine for wire box

Abstract

The invention relates to the technical field of casting machining, in particular to an automatic wire box drilling and tapping machine which comprises a supporting frame, a feeding mechanism, a rotating mechanism, a positioning mechanism, a drilling mechanism, a tapping mechanism and a discharging mechanism, and the feeding mechanism, the rotating mechanism, the positioning mechanism, the drilling mechanism, the tapping mechanism and the discharging mechanism are fixed to the supporting frame. A positioning mechanism, a drilling mechanism and a tapping mechanism are arranged on one side of the rotating mechanism, a discharging mechanism is arranged at the discharging position of the rotating mechanism, a wire box is driven to move through a conveying motor and a conveying belt of the feeding mechanism, then the wire box is pushed into a wire box groove in the workbench through a feeding air cylinder and a feeding push plate, the wire box is driven to rotate to different stations through the workbench, and then the wire box is driven to rotate. The wire box is clamped by the jacking block and the movable clamp of the positioning mechanism, then the lug part and the bottom plate of the wire box are drilled or tapped at the same time through the drilling part and the tapping part which are arranged on the upper side and the lower side of the wire box respectively, the working efficiency is improved, and after tapping is completed, the wire box is pushed out of the workbench through the discharging push plate of the discharging mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of casting processing, and particularly relates to an automatic wire box drilling and tapping machine. Background Art

[0002] A drilling and tapping machine is used to drill holes or threaded holes on a surface. It is a machine tool that combines a drilling and tapping machine and a tapping machine. It is the most widely used internal thread processing machine tool and is often used for internal thread processing of wire boxes. A wire box is generally a box body with one open side, and the edge of the box opening has ears. It is necessary to tap the bottom holes on the ears and the box bottom to form threaded holes. However, when a general drilling and tapping machine processes the threaded holes on the ears and the box bottom, it is necessary to change the workpiece direction to cooperate with tapping, resulting in low work efficiency.

[0003] Chinese Patent CN108994619A discloses a multi-station rotary transfer drilling and tapping machine. The driving mechanism provided in the rotating mechanism drives the turntable to rotate, so that the workpiece body fixed on the holders around the turntable sequentially passes through the first tapping mechanism, the second tapping mechanism and the third tapping mechanism for processing the workpiece body. Three workpiece bodies can be processed synchronously at the same time, which is beneficial to improving work efficiency. When the turntable rotates, the first tapping mechanism, the second tapping mechanism and the third tapping mechanism can respectively process three surfaces of the workpiece body. However, the above device does not include a workpiece loading and unloading mechanism, and each tapping mechanism can only process one surface of the workpiece, so the work efficiency still needs to be improved. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the present invention provides an automatic wire box drilling and tapping machine, which can automatically load and unload materials, and can simultaneously drill or tap the upper and lower surfaces of the wire box.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An automatic drilling and tapping machine for wire boxes, comprising a support frame and a feeding mechanism, a rotating mechanism, a positioning mechanism, a drilling mechanism, a tapping mechanism and a discharging mechanism fixed on the support frame. The discharging end of the feeding mechanism corresponds to the feeding position of the rotating mechanism. A positioning mechanism, a drilling mechanism and a tapping mechanism are arranged on one side of the rotating mechanism, and a discharging mechanism is arranged at its discharging position. The drilling mechanism includes an upper drilling part and a lower drilling part which are symmetrically arranged up and down, and can drill the upper and lower surfaces of the wire box simultaneously. The upper drilling part includes a moving component, a drilling motor, a drill shaft seat sleeve, a guiding block and a drill bit. The moving component is connected to the drill shaft seat sleeve and drives it to move up and down. The cross-section of the drill shaft seat sleeve is in a "convex" shape, and the middle convex part is clamped between two vertical guiding blocks. The upper end of the drill shaft seat sleeve is connected to the drilling motor, and the lower end is connected to the drill bit. The moving component drives the drill shaft seat sleeve to move down along the guiding block, and then the drilling motor drives the drill bit to drill. The lower drilling mechanism has the same structure as the upper drilling mechanism.

[0007] For the above-mentioned automatic drilling and tapping machine for wire boxes, the moving component includes a moving motor, a trapezoidal lead screw and a lead screw slider. The moving motor is assembled on the support frame, and its output end is connected to the trapezoidal lead screw. Both ends of the trapezoidal lead screw are fixed on the support frame through bearing brackets, and a lead screw slider is arranged thereon. The lead screw slider is fixedly connected to the drill shaft seat sleeve.

[0008] For the above-mentioned automatic drilling and tapping machine for wire boxes, the positioning mechanism includes a lifting cylinder, a lifting connecting piece, a lifting block, a positioning cylinder, a fixture connecting plate and a movable fixture. The lifting cylinder is located below the top plate of the support frame, and its output end is connected to the lifting connecting piece. The upper end of the lifting connecting piece passes through the top plate of the support frame and is connected to the lifting block. When the wire box rotates to the drilling mechanism, the wire box is driven to rise or fall by the lifting block. The positioning cylinder is a two-way cylinder and is located above the top plate of the support frame. Its output ends are respectively connected to the fixture connecting pieces, and the other ends of the fixture connecting pieces are connected to the movable fixtures. The two movable fixtures are driven to move towards or away from each other by the positioning cylinder, so as to loosen or clamp the wire box.

[0009] For the above-mentioned automatic drilling and tapping machine for wire boxes, the lifting block is an electromagnet and can adsorb the wire box.

[0010] For the above-mentioned automatic drilling and tapping machine for wire boxes, a tapping hole is provided at one end of the movable fixture far away from the fixture connecting piece, and a positioning block is provided at its lower end. A V-shaped groove is provided on the positioning block for clamping the ear part of the wire box.

[0011] For the above-mentioned automatic drilling and tapping machine for wire boxes, a tap is provided in the tapping mechanism for tapping the bottom hole, and the rest of the structure is the same as that of the drilling mechanism. A broken tap sensor is provided in both the tapping mechanism and the drilling mechanism. The broken tap sensor is arranged on one side of the movable fixture to judge whether the tap or the drill bit is broken.

[0012] The above-mentioned automatic drilling and tapping machine for wire boxes, wherein the feeding mechanism includes a conveyor belt, a conveyor motor, a feeding cylinder, a feeding push plate and conveyor belt baffles. The conveyor motor drives the conveyor belt to rotate. The two sides of the conveyor belt are provided with conveyor belt baffles. The distance between the two conveyor belt baffles matches the width of the wire box. The discharging end of the conveyor belt is provided with a feeding cylinder. The output end of the feeding cylinder is connected to the feeding push plate. The moving direction of the feeding push plate is perpendicular to the moving direction of the conveyor belt. One end of the feeding push plate in contact with the wire box is provided with a semi-circular groove, and the semi-circular groove matches the outer contour of the wire box. The conveyor belt baffle is provided with an avoidance hole at a position corresponding to the feeding push plate.

[0013] The above-mentioned automatic drilling and tapping machine for wire boxes, wherein the rotating mechanism includes a rotating motor, a first gear, a second gear and a workbench. The rotating motor is assembled on the support frame, and its output end passes through the top plate of the support frame and is connected to the first gear. The first gear meshes with the second gear, and the second gear is fixedly connected to the workbench. By driving the first gear and the second gear to rotate through the rotating motor, the workbench is driven to rotate, and wire box grooves are evenly distributed on the workbench.

[0014] The above-mentioned automatic drilling and tapping machine for wire boxes, wherein a through hole is provided at the center of the wire box groove, and the through hole penetrates through the upper and lower sides of the workbench, allowing the lifting block and the drill bit or tap to pass through. The inner contour of the wire box groove is consistent with the outer contour of the wire box. One side of it at the edge of the workbench is an open end, and the other side is provided with an avoidance groove.

[0015] The above-mentioned automatic drilling and tapping machine for wire boxes, wherein the discharging mechanism includes a discharging cylinder and a discharging push plate. The output end of the discharging cylinder is connected to the discharging push plate. The bottom end of the discharging push plate is provided with a push plate protrusion. The discharging cylinder drives the discharging push plate to move towards the edge of the workbench, and the push plate protrusion passes through the avoidance groove to push the wire box in the wire box groove out of the workbench.

[0016] The beneficial effects produced by adopting the above technical solutions are as follows:

[0017] The present invention drives the wire box to move by a conveying motor and a conveyor belt, and conveyor belt baffles are arranged on both sides of the conveyor belt, which can ensure that the posture of the wire box remains unchanged during the movement process, and then the feeding cylinder and the feeding pushing plate push the wire box into the wire box slot on the workbench, and the workbench drives the wire box to rotate to different working positions; the jacking block of the positioning mechanism passes through the through hole of the workbench to drive the wire box to rise and resist the lower end surface of the movable clamp, and the positioning cylinder drives the movable clamp to clamp the wire box, and the movable clamp is provided with a positioning block, and the V-shaped grooves of the two positioning blocks are respectively clamped with the ears of the wire box, on the one hand, the stability of the wire box during the processing is ensured, and on the other hand, the wire box is positioned, and then the drilling part and the tapping part respectively arranged on the upper and lower sides of the wire box are used to drill or tap the ears and the bottom plate of the wire box at the same time, thereby increasing the working efficiency, and the jacking block is an electromagnet, which ensures that after the drilling or tapping is completed, the wire box can be smoothly detached from the drill bit or the tap; after the tapping is completed, the unloading pushing plate pushes the wire box out of the workbench.

[0018] The invention has a simple structure, can not only realize automatic loading and unloading, but also can realize drilling or tapping of the upper and lower surfaces of the wiring box at one work station, has high working efficiency and accurate positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention (not drawn to scale);

[0021] Figure 2 It is a structural schematic diagram of the feeding mechanism of the present invention (not drawn to scale);

[0022] Figure 3 It is a structural schematic diagram of the rotating mechanism of the present invention (not drawn to scale);

[0023] Figure 4 It is a schematic diagram of the structure of the positioning mechanism and the drilling mechanism of the present invention (not drawn to scale);

[0024] Figure 5 It is a structural schematic diagram of the positioning cylinder of the present invention (not drawn to scale);

[0025] Figure 6 It is a structural schematic diagram of the movable clamp of the present invention (not drawn to scale);

[0026] Figure 7 It is a structural schematic diagram of the material unloading mechanism of the present invention (not drawn to scale).

[0027] In the figure: 1. Support frame; 11. Top plate; 2. Feeding mechanism; 21. Conveyor belt; 22. Conveyor motor; 23. Feeding cylinder; 24. Feeding push plate; 241. Semi-circular groove; 25. Conveyor belt baffle; 3. Rotating mechanism; 31. Rotating motor; 32. First gear; 33. Second gear; 34. Workbench; 35. Wire box groove; 351. Through hole; 352. Avoidance groove; 4. Positioning mechanism; 41. Lifting cylinder; 42. Lifting connecting piece; 43. Lifting block; 44. Positioning cylinder; 45. Clamp connecting piece; 46. Movable clamp; 461. Tap through hole; 462. Positioning block; 5. Drilling mechanism; 51. Moving motor; 52. Trapezoidal lead screw; 53. Lead screw slider; 54. Drilling motor; 55. Drill shaft seat sleeve; 56. Guide block; 57. Drill bit; 58. Broken tap sensor; 6. Thread tapping mechanism; 61. Tap; 7. Discharging mechanism; 71. Discharging cylinder; 72. Discharging push plate; 721. Push plate protrusion; 8. Wire box. Detailed implementation mode

[0028] As Figure 1-7 shown, the present invention includes a support frame 1 and a feeding mechanism 2, a rotating mechanism 3, a positioning mechanism 4, a drilling mechanism 5, a thread tapping mechanism 6 and a discharging mechanism 7 fixed on the support frame. The discharging end of the feeding mechanism 2 corresponds to the feeding position of the rotating mechanism 3. A drilling mechanism 5, a thread tapping mechanism 6 and a positioning mechanism 4 are arranged on one side of the rotating mechanism 3, and a discharging mechanism 7 is arranged at its discharging position. The positioning mechanism 4 includes a lifting cylinder 41, a lifting connecting piece 42, a lifting block 43, a positioning cylinder 44, a clamp connecting piece 45 and a movable clamp 46. The lifting cylinder 41 is located below the top plate 11 of the support frame 1, and its output end is connected to the lifting connecting piece 42. The upper end of the lifting connecting piece 42 passes through the top plate 11 of the support frame and is connected to the lifting block 43. When the wire box 8 rotates to the drilling mechanism 5, the lifting cylinder 41 drives the lifting block 43 to rise, and drives the wire box 8 to rise through the lifting block 43. The positioning cylinder 44 is a two-way cylinder, assembled above the top plate 11 of the support frame, and its output ends are respectively connected to the clamp connecting pieces 45. The other ends of the clamp connecting pieces 45 are connected to the movable clamps 46. The positioning cylinder 44 drives the two movable clamps 46 to move towards or away from each other, so as to loosen or clamp the wire box 8.

[0029] In the present invention, the lifting block 43 is an electromagnet. After thread tapping is completed, the lifting block 43 can adsorb the wire box 8 to avoid the wire box 8 being hooked by the tap or drill bit.

[0030] As Figure 5-6As shown in the figure, a tapping hole 461 is provided at one end of the movable fixture 46 away from the fixture connecting member 45, and a positioning block 462 is provided at its lower end. A V-shaped groove is provided on the positioning block 462 for engaging with the ear part of the junction box 8. The upper and lower ends of the junction box 8 are clamped by the lifting block 43 and the movable fixture 46, and the two ear parts are clamped by the V-shaped groove of the movable fixture 46 to ensure the stability of the junction box 8 during the tapping process. At the same time, the junction box 8 is positioned by the two V-shaped grooves to ensure that the bottom hole positions of each junction box 8 are consistent after processing.

[0031] As Figure 4 As shown in the figure, the drilling mechanism 5 is arranged on one side of the rotating mechanism 3. The drilling mechanism 5 includes an upper drilling part and a lower drilling part, which are symmetrically arranged with the top plate 11 of the support frame as the symmetry plane, and can drill the upper and lower surfaces of the junction box 8 at the same time. The upper drilling part is used for drilling the ear part of the junction box and includes a moving motor 51, a trapezoidal lead screw 52, a lead screw slider 53, a drilling motor 54, a drill shaft seat sleeve 55, a guide block 56 and a drill bit 57. The moving motor 51 is assembled on the support frame 1, and its output end is connected to the trapezoidal lead screw 52. The two ends of the trapezoidal lead screw 52 are fixed on the support frame 1 through bearing brackets, and a lead screw slider 53 is arranged thereon. The lead screw slider 53 is fixedly connected to the drill shaft seat sleeve 55. The cross-section of the drill shaft seat sleeve 55 is "convex" shaped, and the middle convex part is clamped between two vertical guide blocks 56. The upper end of the drill shaft seat sleeve 55 is connected to the drilling motor 54, and the lower end is connected to the drill bit 57. The moving motor 51 drives the lead screw slider 53 and the drill shaft seat sleeve 55 to move downward along the trapezoidal lead screw 52, and then the drilling motor 54 drives the drill bit 57 to drill. The feeding distance of the drill bit 57 can be accurately controlled by the trapezoidal lead screw 52. The lower drilling part is used for drilling the bottom plate of the junction box 8, and its structure is the same as that of the upper drilling part.

[0032] The drilling mechanism 5 of the present invention further includes a broken tap sensor 58. The broken tap sensor 58 is a sensor with a built-in transmitter and receiver, and is arranged on one side of the movable fixture 46. When the drill bit 57 descends to the upper surface of the junction box 8, it is judged whether the drill bit 57 is broken through the broken tap sensor 58.

[0033] The tapping mechanism 6 is provided with a tap 61. After the drilling mechanism drills the bottom hole, the tapping mechanism 6 taps the bottom hole, and the remaining structure is the same as that of the drilling mechanism 5.

[0034] As Figure 2As shown in the figure, the feeding mechanism 2 includes a conveyor belt 21, a conveyor motor 22, a feeding cylinder 23, a feeding push plate 24 and conveyor belt baffles 25. The conveyor motor 22 drives the conveyor belt 21 to rotate through a belt. The conveyor belt baffles 25 are arranged on both sides of the conveyor belt 21. The distance between the two conveyor belt baffles 25 matches the width of the wire box 8, which can ensure the consistent attitude of the wire boxes on the conveyor belt 21 during the conveying process. The discharging end of the conveyor belt 21 is provided with a feeding cylinder 23. The output end of the feeding cylinder 23 is connected to the feeding push plate 24. The moving direction of the feeding push plate 24 is perpendicular to the moving direction of the conveyor belt 21. One end of the feeding push plate 24 in contact with the wire box is provided with a semi-circular groove 241, and the semi-circular groove 241 matches the outer contour of the wire box 8. The wire box 8 on the conveyor belt 21 is pushed into the rotating mechanism 3 by the feeding push plate 24. Avoidance holes are provided at the positions of the conveyor belt baffles 25 corresponding to the feeding push plate 24, so that the feeding push plate 24 can pass through the two conveyor belt baffles and push the wire box 8 into the rotating mechanism 3.

[0035] As Figure 3 shown in the figure, the rotating mechanism 3 includes a rotating motor 31, a first gear 32, a second gear 33 and a workbench 34. The rotating motor 31 is assembled on the top plate of the support frame 1 through a connecting plate, and its output end passes through the top plate 11 of the support frame and then connects to the first gear 32. The first gear 32 meshes with the second gear 33, and the second gear 33 is fixedly connected to the workbench 34. The rotating motor 31 drives the first gear 32 and the second gear 33 to rotate, and then drives the workbench 34 to rotate. Six wire box grooves 35 are evenly distributed on the workbench 34.

[0036] As Figure 3 shown in the figure, a through hole 351 is provided at the center of the wire box groove 35. The through hole 351 penetrates through the upper and lower sides of the workbench 34, and can be passed through by the lifting block 43, and can also be passed through by the drill bit 57 of the lower drilling part or the tap 61 of the lower tapping part. The inner contour of the wire box groove 35 is consistent with the outer contour of the wire box 8. One side of it located at the edge of the workbench 34 is an open end, which is convenient for loading and unloading of the wire box 8, and the other side is provided with an avoidance groove 352.

[0037] The discharging mechanism 7 includes a discharging cylinder 71 and a discharging push plate 72. The output end of the discharging cylinder 71 is connected to the discharging push plate 72. A push plate protrusion 721 is provided at the bottom end of the discharging push plate 72. The discharging cylinder 71 drives the discharging push plate 72 to move towards the edge of the workbench 34. Among them, the push plate protrusion 721 passes through the avoidance groove 352 to push the wire box 8 in the wire box groove 35 out of the workbench 34 and make it enter the next process.

[0038] Working process:

[0039] 1. The conveyor motor 22 drives the conveyor belt 21 to convey the wire box 8. The feeding cylinder 23 pushes the wire box 8 into the wire box groove 35 of the workbench 34 through the feeding push plate 24, and the rotating motor 31 drives the workbench 34 to rotate;

[0040] 2. When the wire box 8 rotates to one side of the drilling mechanism 5, the rod of the lifting cylinder 41 extends. The lifting block 43 passes through the through hole 351 of the workbench 34, then drives the wire box 8 to rise, and abuts against the lower end surface of the movable fixture 46. Then the rod of the positioning cylinder 44 extends, driving the two movable fixtures 46 to move away from each other, and the two V-shaped grooves respectively clamp the ears of the wire box 8;

[0041] 3. The moving motor 51 of the upper drilling part is started, and the drill shaft seat sleeve 55 moves downward along the guide block 56 and the trapezoidal lead screw 52. The drill bit 57 passes through the tap through hole 461 and starts to drill a bottom hole in the ear of the wire box 8. At the same time, the drill bit 57 of the lower drilling part passes through the through hole 351 of the workbench 34 and starts to drill a bottom hole in the bottom of the wire box 8;

[0042] 4. When the wire box 8 rotates to one side of the tapping mechanism 6, the positioning mechanism 4 fixes the wire box 8, and then the tap 61 of the tapping mechanism 6 starts to tap at the position of the bottom hole;

[0043] 5. When the wire box 8 rotates to one side of the blanking mechanism 7, the blanking cylinder 71 drives the blanking push plate 72 to move towards the edge of the workbench 34. Among them, the push plate protrusion 721 passes through the avoidance groove 352 to push the wire box 8 that has been tapped out of the workbench 34.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A wire box automatic drilling and tapping machine, characterized in that: The invention comprises a support frame (1) and a feeding mechanism (2), a rotating mechanism (3), a positioning mechanism (4), a drilling mechanism (5), a tapping mechanism (6) and a blanking mechanism (7) fixed on the support frame (1); the discharge end of the feeding mechanism (2) corresponds to the feeding position of the rotating mechanism (3); a positioning mechanism (4), a drilling mechanism (5) and a tapping mechanism (6) are provided on one side of the rotating mechanism (3); and a blanking mechanism (7) is provided at the discharge position; the drilling mechanism (5) comprises an upper drilling part and a lower drilling part symmetrically arranged in the upper and lower parts, and can drill holes on the upper and lower surfaces of the wire box (8) at the same time; the upper drilling part comprises a movable The invention relates to a drilling shaft seat sleeve (55), a drilling motor (54), a drilling shaft seat sleeve (55), a guide block (56) and a drill bit (57). The movable assembly is connected to the drilling shaft seat sleeve (55) to drive it to move up and down. The cross section of the drilling shaft seat sleeve (55) is in the shape of a "convex" character, and the middle convex part is engaged between two vertical guide blocks (56). The upper end of the drilling shaft seat sleeve (55) is connected to the drilling motor (54), and the lower end is connected to the drill bit (57). The drilling shaft seat sleeve (55) is driven by the movable assembly to move downward along the guide block (56), and then the drilling motor (54) drives the drill bit (57) to drill a hole. The lower drilling mechanism and the upper drilling mechanism have the same structure.

2. The automatic drilling and tapping machine for wire boxes according to claim 1, characterized in that: The moving assembly comprises a moving motor (51), a trapezoidal lead screw (52) and a lead screw slider (53); the moving motor (51) is mounted on a support frame (1); an output end of the moving motor (51) is connected to the trapezoidal lead screw (52); both ends of the trapezoidal lead screw (52) are fixed to the support frame (1) via bearing brackets; a lead screw slider (53) is provided on the support frame; and the lead screw slider (53) is fixedly connected to a drill shaft seat sleeve (55).

3. The automatic drilling and tapping machine for wire boxes according to claim 1, characterized in that: The positioning mechanism (4) comprises a lifting cylinder (41), a lifting connection piece (42), a lifting block (43), a positioning cylinder (44), a clamp connection piece (45) and a movable clamp (46). The lifting cylinder (41) is located below the top plate (11) of the support frame, and its output end is connected to the lifting connection piece (42). The upper end of the lifting connection piece (42) passes through the top plate (11) of the support frame and is connected to the lifting block (43). When the wire box (8) rotates to the drilling mechanism (5), the lifting block (43) drives the wire box to rise or fall. The positioning cylinder (44) is a bidirectional cylinder, which is located above the top plate (11) of the support frame. Its output end is respectively connected to the clamp connection piece (45). The other end of the clamp connection piece (45) is connected to the movable clamp (46). The positioning cylinder (44) drives the two movable clamps (46) to move relative to or opposite to each other, thereby loosening or clamping the wire box (8).

4. The automatic drilling and tapping machine for wire boxes according to claim 3 is characterized in that: The lifting block (43) is an electromagnet capable of adsorbing the wire box (8).

5. The automatic drilling and tapping machine for wire boxes according to claim 4, characterized in that: The movable clamp (46) is provided with a tap through hole (461) at one end away from the clamp connecting piece (45), and a positioning block (462) is provided at the lower end thereof. The positioning block (462) is provided with a V-shaped groove for engaging the ear of the wire box (8).

6. The automatic drilling and tapping machine for wire boxes according to claim 1 or 3, characterized in that: The tapping mechanism (6) is provided with a tap (61) for tapping a bottom hole, and the remaining structure is the same as that of the drilling mechanism (5). Both the tapping mechanism (6) and the drilling mechanism (5) are provided with a broken taper sensor (58), and the broken taper sensor (58) is arranged on one side of the movable fixture (46). Whether the tap (61) or the drill bit (57) is broken is determined by the broken taper sensor (58).

7. The automatic drilling and tapping machine for wire boxes according to claim 6, characterized in that: The feeding mechanism (2) comprises a conveyor belt (21), a conveying motor (22), a feeding cylinder (23), a feeding push plate (24) and a conveyor belt baffle (25). The conveying motor (22) drives the conveyor belt (21) to rotate. Conveyor belt baffles (25) are provided on both sides of the conveyor belt (21). The distance between the two conveyor belt baffles (25) matches the width of the wire box (8). A feeding cylinder (23) is provided at the discharge end of the conveyor belt (21). The output end of the feeding cylinder (23) is connected to the feeding push plate (24). The moving direction of the feeding push plate (24) is perpendicular to the moving direction of the conveyor belt (21). A semi-arc groove (241) is provided at one end of the feeding push plate (24) contacting the wire box (8). The semi-arc groove (241) matches the outer contour of the wire box (8). Avoidance holes are provided at positions corresponding to the conveyor belt baffle (25) and the feeding push plate (24).

8. The automatic drilling and tapping machine for wire boxes according to claim 7, characterized in that: The rotating mechanism (3) comprises a rotating motor (31), a first gear (32), a second gear (33) and a workbench (34); the rotating motor (31) is mounted on the support frame (1); an output end of the rotating motor (31) passes through a top plate (11) of the support frame and is connected to the first gear (32); the first gear (32) and the second gear (33) are meshed with each other; the second gear (33) is fixedly connected to the workbench (34); the rotating motor (31) drives the first gear (32) and the second gear (33) to rotate, thereby driving the workbench (34) to rotate; and the workbench (34) is evenly distributed with wire box slots (35).

9. The automatic drilling and tapping machine for wire boxes according to claim 8, characterized in that: A through hole (351) is provided at the center of the wire box groove (35), and the through hole (351) passes through the upper and lower sides of the workbench (34) and can be used for a lifting block (43) and a drill bit (57) or a tap (61) to pass through. The inner contour of the wire box groove (35) is consistent with the outer contour of the wire box (8), and one side of the wire box groove (35) located at the edge of the workbench (34) is an open end, and the other side is provided with an avoidance groove (352).

10. The automatic drilling and tapping machine for wire boxes according to claim 9, characterized in that: The unloading mechanism (7) comprises an unloading cylinder (71) and an unloading push plate (72), wherein the output end of the unloading cylinder (71) is connected to the unloading push plate (72), and the bottom end of the unloading push plate (72) is provided with a push plate protrusion (721), and the unloading cylinder (71) drives the unloading push plate (72) to move toward the edge of the workbench (34), wherein the push plate protrusion (721) passes through the avoidance groove (352) to push the wire box (8) in the wire box slot (35) out of the workbench.

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