Machining device for cabinet grounding terminal copper bar thread array bottom holes

Abstract

The utility model relates to a processing device for cabinet grounding terminal copper bar thread array bottom holes, and belongs to the technical field of grounding accessory processing equipment. The device comprises a C-shaped rack, an upper oil cylinder is fixedly connected to the top of the C-shaped rack, a lower oil cylinder is fixedly connected to the bottom of the C-shaped rack, and the upper oil cylinder and the lower oil cylinder are both connected with a hydraulic station; an upper piston rod is vertically and downwards arranged in the upper oil cylinder, an upper die is matched with the bottom of the upper piston rod, a lower piston rod is vertically and downwards arranged in the lower oil cylinder, and a first convex cutting edge is arranged on the bottom face of the lower piston rod. A lower die is arranged under the upper die in a matched mode, the lower die structurally comprises a second convex cutting edge matched with the first convex cutting edge, a waste discharge hole is formed below the second convex cutting edge in the vertical direction of the upper die, and a receding groove is formed in one side of the waste discharge hole. According to the utility model, through the design of the convex cutting edges which are opposite up and down, a workpiece is subjected to cold extrusion thinning and chamfering, and batch punching of the grounding terminal row can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of grounding accessory processing equipment, in particular to a processing device for bottom holes of a threaded array of a copper bar of a cabinet grounding terminal. Background Art

[0002] In the communication control cabinets and IT data cabinets of rail transit, the grounding terminal copper bar in each cabinet is used in large quantities, and is arranged in the width, height, and depth of the cabinet cavity; and the grounding terminal bar is made of red copper, which has a high copper content and is relatively soft; in the factory, the traditional processing process is: marking, punching, drilling bottom holes, chamfering the hole ends, and tapping, a total of 5 processes. In the case of small batches, the above traditional processing methods can meet the production rhythm of cabinet assembly; but in the case of large batches and customer delivery deadlines, according to the traditional processing flow, each process needs to be equipped with a worker to maintain continuous and smooth processing. This processing layout is obviously high-cost and inefficient; if overtime work still cannot meet the progress rhythm of cabinet assembly, it will have to be outsourced, which will increase the hidden cost of the product.

[0003] In view of the above situation, the only option to improve the processing efficiency of the array holes on the grounding busbar is the stamping process. However, there is another dilemma in the stamping process: the material thickness of the grounding terminal block is greater than the bottom diameter of the screw hole on the grounding terminal block, which makes it impossible to use a mold to punch the bottom hole on a general mechanical press; and the grounding terminal block is made of copper, which has a high copper content and is relatively soft, while the stamping slider speed of the general mechanical press is relatively high, which also limits the possibility of using a general mechanical press, and other methods need to be found. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides a processing device for the bottom holes of the threaded array of the cabinet grounding terminal copper bar, thereby solving the stamping problem with adjustable speed in the low-speed area, and enabling efficient batch punching of the grounding terminal bar.

[0005] The technical scheme adopted by the utility model is as follows: a processing device for the bottom hole of the threaded array of the copper bar of the cabinet grounding terminal, comprising a C-shaped frame, an upper oil cylinder fixedly connected to the top of the C-shaped frame, and a lower oil cylinder fixedly connected to the bottom of the C-shaped frame, wherein the upper oil cylinder and the lower oil cylinder are both connected to the hydraulic station; an upper piston rod is vertically arranged downward in the upper oil cylinder, and an upper die is matched at the bottom of the upper piston rod, a lower piston rod is vertically arranged downward in the lower oil cylinder, and a first convex cutting edge is arranged on the bottom surface of the lower piston rod; a lower die is matched and arranged directly below the upper die, and the lower die is embedded in the lower table of the C-shaped frame, and the structure of the lower die is as follows: it comprises a second convex cutting edge matched with the first convex cutting edge, a waste discharge hole is arranged below the second convex cutting edge along the vertical direction of the upper die, and an avoidance groove is arranged on one side of the waste discharge hole.

[0006] As a further improvement of the above technical solution:

[0007] Preferably, the structure of the C-shaped frame is: including an upper end face, a lower end face, a lower table, a right side face and a left side face to form a "C"-shaped frame body, and guide holes for the upper cylinder and the lower cylinder are also arranged on the top of the frame body, and a light hole is arranged at the bottom of the frame body, and the guide hole is coaxially connected with the light hole under the lower table.

[0008] Preferably, a third guide rod is installed on the left side of the C-shaped frame, and a third clamping plate is installed on the end of the third guide rod. The third screw passes through the third clamping plate and rotates in the hole of the third clamping plate, the threaded portion of the third screw is connected to the second slider, and the positioning block is attached to the second slider; a scale is also provided on the positioning surface of the positioning block; the second guide rod is connected to the positioning block by a thread, and the second guide rod vertically passes through the second slider and a pressure block is provided above the second guide rod, the rod end of the second guide rod is fixedly connected to the second clamping plate, the second screw rotates in the hole of the second clamping plate, and the threaded portion of the second screw is connected to the second slider.

[0009] Preferably, a first guide rod is installed on the right side of the C-shaped frame, a first clamping plate is fixed to the end of the first guide rod, a first screw passes through the first clamping plate and rotates in the hole of the first clamping plate, a threaded portion of the first screw is connected to the first slider, the slider is attached to the first slider through a slide groove and fixed in the slide groove by a fastener; a locating pin is hoisted at the end of the slider.

[0010] Preferably, a spring is provided at the bottom of the positioning pin and the positioning pin is hoisted to the end of the skateboard by a hoisting screw.

[0011] Preferably, the structure of the upper die is: comprising a screw head assembled with a screw hole at the bottom of the upper piston rod and a punch for punching the workpiece.

[0012] Preferably, the structure of the upper oil cylinder is: it includes an upper cylinder body, in which an upper piston rod moving vertically is arranged, a screw hole is provided at the bottom of the upper piston rod and is assembled with the upper mold through the screw hole; one side of the upper cylinder body is connected to the hydraulic station through an upper oil pipe.

[0013] Preferably, the structure of the lower oil cylinder is as follows: it includes a lower cylinder body, in which a lower piston rod moving vertically is arranged, and the upper mold penetrates the tail rod of the lower piston rod from the top; a step hole for matching with the upper mold is opened inside the lower piston rod; a first convex cutting edge is arranged at the bottom of the lower piston rod, and the first convex cutting edge is vertically opposite to the second convex cutting edge on the lower mold; one side of the lower cylinder body is connected to the hydraulic station through a lower oil pipe.

[0014] Preferably, the structure of the hydraulic station is as follows: it includes an oil tank, an oil pump unit is arranged on the oil tank, and an oil pressure sensor is also arranged on one side of the oil pump unit; a first solenoid valve and a second solenoid valve are arranged in parallel at the oil outlet end of the oil tank, the first solenoid valve is connected to the lower oil cylinder through a pipeline, and the second solenoid valve is connected to the upper oil cylinder through a pipeline; the first solenoid valve and the second solenoid valve are both electrically connected to the controller, and the other side of the controller is also electrically connected to the foot switch.

[0015] The beneficial effects of the utility model are as follows:

[0016] The utility model has a compact structure and convenient operation and punching process. The first convex cutting edge and the second convex cutting edge are opposite to each other in the vertical direction, and a circular chamfered thinning groove is formed after coaxial cold extrusion in the thickness direction of the workpiece. The actual thickness of the workpiece after thinning is less than the original thickness of the material and can meet the process requirements of the punching. Finally, the punching and waste removal action is completed by the cooperation of the upper die and the lower die, so that batch punching of the grounding terminal row is realized, with high work efficiency and high degree of automation.

[0017] The utility model also has the following advantages:

[0018] The utility model can be operated by one person, and the flow rate of the motor and the oil pump unit can be changed through the setting of the controller and the foot switch to realize the conversion between fast flushing and slow flushing, thereby saving labor and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the state of the utility model at the upper limit of the no-load stroke.

[0021] Figure 3 It is a schematic diagram of the state of the utility model being located at the lower limit of the no-load stroke.

[0022] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0023] Figure 5 It is a schematic diagram of the upper mold structure of the utility model.

[0024] Figure 6 This is a schematic diagram of the hydraulic station structure of the utility model

[0025] Among them: 1. C-type frame; 2. upper oil cylinder; 3. lower oil cylinder; 4. lower mold; 5. hydraulic station; 6. upper mold; 7. slide plate; 8. first screw rod; 9. first clamping plate; 10. first guide rod; 11. fastener; 12. first slider; 13. slide groove; 14. positioning pin; 15. spring; 16. lifting screw; 17. second slider; 18. second clamping plate; 19. second screw rod; 20. second guide rod; 21. pressure plate; 22. positioning block; 23. third clamping plate; 24. third screw rod; 25. third guide rod;

[0026] 101, upper end surface; 102, lower end surface; 103, guide hole; 104, lower table surface; 105, light hole; 106, right side surface; 107, left side surface;

[0027] 201, upper cylinder body; 202, upper piston rod; 203, screw hole; 204, upper oil pipe;

[0028] 301, lower cylinder body; 302, lower piston rod; 303, step hole; 304, tail rod; 305, first convex cutting edge; 306, lower oil pipe;

[0029] 401, second convex cutting edge; 402, avoidance groove; 403, waste discharge hole;

[0030] 501, oil pressure sensor; 502, first solenoid valve; 503, second solenoid valve; 504, controller; 505, oil pump unit; 506, oil tank; 507, foot switch;

[0031] 601, screw head; 602, punch;

[0032] 2201. Ruler. 2202. Positioning surface. DETAILED DESCRIPTION

[0033] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0034] like Figure 1 to Figure 6 As shown, the processing device for the bottom hole of the threaded array of the copper bar of the cabinet grounding terminal of this embodiment includes a C-shaped frame 1, an upper oil cylinder 2 is fixedly connected to the top of the C-shaped frame, and a lower oil cylinder 3 is fixedly connected to the bottom of the C-shaped frame, and the upper oil cylinder 2 and the lower oil cylinder 3 are both connected to the hydraulic station 5; an upper piston rod 202 is vertically arranged downward in the upper oil cylinder 2, and an upper mold 6 is matched at the bottom of the upper piston rod 202, and a lower piston rod 301 is vertically arranged downward in the lower oil cylinder 3, and a first convex cutting edge 305 is arranged on the bottom surface of the lower piston rod 301; a lower mold 4 is matched and arranged directly below the upper mold 6, and the structure of the lower mold 4 is: it includes a second convex cutting edge 401 matched with the first convex cutting edge 305, a waste discharge hole 403 is arranged below the second convex cutting edge 401 along the vertical direction of the upper mold 6, and an avoidance groove 402 is arranged on one side of the waste discharge hole 403.

[0035] In this embodiment, the structure of the C-shaped frame 1 is as follows: the frame body is formed of an upper end surface 101, a lower end surface 102, a lower table surface 104, a right side surface 106 and a left side surface 107, and a guide hole 103 for the upper oil cylinder 2 and the lower oil cylinder 3 is provided at the top of the frame body, and a light hole 105 is provided at the bottom of the frame body;

[0036] The upper oil cylinder 2 is mounted on the end surface 101, the lower oil cylinder 3 is mounted on the lower end surface 102, and the lower die 4 is embedded in the lower table 104; the guide hole 103 of the C-shaped frame 1 is coaxially connected with the light hole 105 under the lower table 104; since the piston rod 302 of the lower oil cylinder 3 is a hollow structure with a step hole 303, the upper die 6 mounted on the upper piston rod 202 can slide through the step hole 303, forming a coaxial dynamic fit relationship between each other.

[0037] In this embodiment, a third guide rod 25 is installed on the left side 107 of the C-shaped frame 1, and a third clamping plate 23 is installed at the end of the third guide rod 25. The third screw rod 24 passes through the detachable third clamping plate 23 and rotates in the hole of the third clamping plate 23. The threaded portion of the third screw rod 24 is connected to the second slider 17, and the positioning block 22 is attached to the second slider 17; a scale 2202 is also provided on the positioning surface 2201 of the positioning block 22, and the zero point of the scale 2201 on the positioning block 22 can be fine-tuned relative to the Y-axis direction. For the distance of the Z axis; the second guide rod 20 is connected to the positioning block 22 by a thread to form an integral structure, and the second guide rod 20 is perpendicular to the XZ plane and passes through the second slider 17, a pressure block 21 is arranged above the second guide rod 20, the rod end of the second guide rod 20 is fixedly connected to the second clamping plate 18, the second screw rod 19 rotates in the hole of the second clamping plate 18, the threaded part of the second screw rod 19 is connected to the second slider 17, and the positioning surface 2202 of the positioning block 22 can be adjusted relative to the Z axis in the Y axis direction.

[0038] In this embodiment, a first guide rod 10 is installed on the right side 106 of the C-shaped frame 1, and a detachable first clamping plate 9 is fixed at the end of the first guide rod 10. The first screw rod 8 passes through the first clamping plate 9 and rotates in the hole of the first clamping plate 9. The threaded portion of the first screw rod 8 is connected to the first slider 12. The slider 7 is attached to the first slider 12 through the slide groove 13 and fixed in the slide groove 13 through the fastener 11; the locating pin 14 is hoisted at the end of the slider 7, and a spring 15 is provided at the bottom of the locating pin 14 and the locating pin 14 is hoisted by a hoisting screw 16. The first screw rod 8 can be rotated to adjust the distance of the axis of the locating pin 14 relative to the Z axis along the X-axis direction. This distance is the constant hole spacing of the bottom holes of the array in the length direction of the workpiece.

[0039] In this embodiment, the structure of the upper die 6 is as follows: it includes a screw head 601 assembled with the screw hole 203 at the bottom of the upper piston rod 202 and a punch 602 for punching the workpiece.

[0040] In this embodiment, the structure of the upper oil cylinder 2 is: it includes an upper cylinder body 201, in which an upper piston rod 202 that moves vertically is arranged, and a screw hole 203 is provided at the bottom of the upper piston rod 202 and is assembled with the upper mold 6 through the screw hole 203; one side of the upper cylinder body 201 is connected to the hydraulic station 5 through an upper oil pipe 204.

[0041] In this embodiment, the structure of the lower oil cylinder 3 is as follows: it includes a lower cylinder body 301, in which a lower piston rod 302 that moves vertically is arranged, and the upper mold 6 penetrates the tail rod 304 of the lower piston rod 302 from the top; a step hole 303 for matching with the upper mold 6 is opened inside the lower piston rod 302; a first convex cutting edge 305 is arranged at the bottom of the lower piston rod 302, and the first convex cutting edge 305 is vertically opposite to the second convex cutting edge 401 on the lower mold 4; one side of the lower cylinder body 301 is connected to the hydraulic station 5 through the lower oil pipe 306.

[0042] In this embodiment, the structure of the hydraulic station 5 is as follows: it includes an oil tank 506, an oil pump unit 505 is arranged on the oil tank 506, and an oil pressure sensor 501 is also arranged on one side of the oil pump unit 505; the first solenoid valve 502 and the second solenoid valve 503 are arranged in parallel at the oil outlet end of the oil tank 506, the first solenoid valve 502 is connected to the lower cylinder 3 through a pipeline, and the second solenoid valve 503 is connected to the upper cylinder 2 through a pipeline; the first solenoid valve 502 and the second solenoid valve 503 are both electrically connected to the controller 504, and the other side of the controller 504 is also electrically connected to the foot switch 507.

[0043] The utility model has a reasonable structure and convenient stamping operation. The first convex cutting edge 305 and the second convex cutting edge 401 are relative to each other in the vertical direction and are coaxially matched. When performing the stamping operation, the workpiece is first cold-extruded coaxially along its thickness direction to form a circular chamfered thinning groove. The actual thickness of the workpiece after thinning is less than the original thickness of the material, so that the stamping process requirements can be met. Finally, the upper die 6 cooperates with the lower die 4 to complete the punching and waste removal action, thereby realizing batch punching of the grounding terminal row, with high work efficiency and high degree of automation.

[0044] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. A processing device for the bottom hole of the threaded array of the copper bar of the cabinet grounding terminal, characterized in that: It comprises a C-shaped frame (1), an upper oil cylinder (2) is fixedly connected to the top of the C-shaped frame, and a lower oil cylinder (3) is fixedly connected to the bottom of the C-shaped frame, and both the upper oil cylinder (2) and the lower oil cylinder (3) are connected to a hydraulic station (5); An upper piston rod (202) is vertically arranged downward in the upper oil cylinder (2), and an upper mold (6) is matched at the bottom of the upper piston rod (202); a lower piston rod (302) is vertically arranged downward in the lower oil cylinder (3), and a first convex cutting edge (305) is arranged on the bottom surface of the lower piston rod (302); A lower die (4) is matched and arranged directly below the upper die (6), and the lower die (4) is embedded in the lower table (104) of the C-shaped frame (1). The structure of the lower die (4) is as follows: it includes a second convex cutting edge (401) matched with the first convex cutting edge (305), a waste discharge hole (403) is arranged below the second convex cutting edge (401) along the vertical direction of the upper die (6), and an avoidance groove (402) is arranged on one side of the waste discharge hole (403).

2. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 1, characterized in that: The structure of the C-shaped frame (1) is as follows: the frame body is formed of an upper end surface (101), a lower end surface (102), a lower table surface (104), a right side surface (106) and a left side surface (107), wherein a guide hole (103) for an upper oil cylinder (2) and a lower oil cylinder (3) is arranged at the top of the frame body, and a light hole (105) is arranged at the bottom of the frame body, wherein the guide hole (103) and the light hole (105) under the lower table surface (104) are coaxially connected.

3. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 2, characterized in that: A third guide rod (25) is mounted on the left side surface (107) of the C-shaped frame (1), a third clamping plate (23) is mounted on the end of the third guide rod (25), a third screw rod (24) passes through the third clamping plate (23) and rotates in a hole of the third clamping plate (23), a threaded portion of the third screw rod (24) is connected to the second slider (17), and a positioning block (22) is attached to the second slider (17); A scale (2202) is also provided on the positioning surface (2201) of the positioning block (22); The second guide rod (20) is connected to the positioning block (22) by means of a thread, and the second guide rod (20) vertically passes through the second slider (17) and a pressing block (21) is arranged above the second guide rod (20), the rod end of the second guide rod (20) is fixedly connected to the second clamping plate (18), the second screw rod (19) rotates in the hole of the second clamping plate (18), and the threaded part of the second screw rod (19) is connected to the second slider (17).

4. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 2, characterized in that: The right side (106) of the C-shaped frame (1) is provided with a first guide rod (10), the end of the first guide rod (10) is fixed with a first clamping plate (9), the first screw rod (8) passes through the first clamping plate (9) and rotates in the hole of the first clamping plate (9), the threaded portion of the first screw rod (8) is connected to the first slider (12), the slider (7) is attached to the first slider (12) through a sliding groove (13) and is fixed in the sliding groove (13) through a fastener (11); the positioning pin (14) is hoisted at the end of the slider (7).

5. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 4, characterized in that: A spring (15) is arranged at the bottom of the positioning pin (14) and the positioning pin (14) is hoisted to the end of the slide plate (7) by a hoisting screw (16).

6. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 1, characterized in that: The structure of the upper die (6) is as follows: it comprises a screw head (601) assembled with a screw hole (203) at the bottom of the upper piston rod (202) and a punch (602) for punching a workpiece.

7. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 1, characterized in that: The structure of the upper oil cylinder (2) is as follows: it comprises an upper cylinder body (201), an upper piston rod (202) which moves vertically is arranged inside the upper cylinder body (201), a screw hole (203) is arranged at the bottom of the upper piston rod (202) and the upper piston rod (202) is assembled with the upper mold (6) through the screw hole (203); One side of the upper cylinder body (201) is connected to the hydraulic station (5) via an upper oil pipe (204).

8. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 1, characterized in that: The structure of the lower oil cylinder (3) is as follows: it comprises a lower cylinder body (301), a lower piston rod (302) which moves vertically is arranged in the lower cylinder body (301), and an upper mold (6) penetrates a tail rod (304) of the lower piston rod (302) from the top; A stepped hole (303) for matching with the upper die (6) is provided inside the lower piston rod (302); A first convex cutting edge (305) is provided at the bottom of the lower piston rod (302), wherein the first convex cutting edge (305) is vertically opposite to the second convex cutting edge (401) on the lower die (4); One side of the lower cylinder body (301) is connected to the hydraulic station (5) via a lower oil pipe (306).

9. The processing device for the bottom hole of the threaded array of the cabinet grounding terminal copper bar according to claim 7 or 8, characterized in that: The structure of the hydraulic station (5) is as follows: it includes an oil tank (506), an oil pump unit (505) is arranged on the oil tank (506), and an oil pressure sensor (501) is also arranged on one side of the oil pump unit (505); A first solenoid valve (502) and a second solenoid valve (503) are arranged in parallel at the oil outlet end of the oil tank (506); the first solenoid valve (502) is connected to the lower oil cylinder (3) through a pipeline, and the second solenoid valve (503) is connected to the upper oil cylinder (2) through a pipeline; The first solenoid valve (502) and the second solenoid valve (503) are both electrically connected to the controller (504), and the other side of the controller (504) is also electrically connected to the foot switch (507).

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