Concentric drilling and forming device for steel anchor holes in bending surface of strain clamp body
By designing a drilling forming device for processing steel anchor holes on the curved surface of the tension clamp body, the positioning components and the compression components are used to achieve self-centering and stability of the tension clamp body, the problems of high labor intensity and low production efficiency in the prior art are solved, and efficient and accurate steel anchor hole processing is achieved, which reduces production costs.
Patent Information
- Application Number
- CN202421785004.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-23
- Estimated Expiration
- 2034-07-26
AI Technical Summary
In the prior art, when processing curved steel anchor holes of tension-resistant wire clip body, the labor intensity is high, the production efficiency is low, and the processing speed is slow, resulting in unstable product quality and high production costs.
A concentric drilling forming device for the curved surface of the tension-resistant wire clip body is designed, including a drilling drill bit, a positioning assembly and a pressing assembly driven by a drilling equipment. Through the coordination of the positioning assembly and the compression assembly, the self-centering and stability of the tension clamp body is achieved, manual operation is reduced, and processing accuracy is improved.
It greatly reduces the labor intensity of workers, improves production efficiency and product quality, shortens processing time, improves production output, and reduces production costs.
Smart Images
Figure CN222890913U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of electric power fittings production and manufacturing, and more specifically, it particularly relates to a device for drilling and forming steel anchor holes coaxially on the curved surface of a tension clamp body, which has a unique and ingenious conception, greatly reduces the labor intensity of workers, reasonably and efficiently utilizes existing resources in a workshop, greatly reduces production costs, is self-centering during the drilling process, operates stably, has high steel anchor hole processing precision, has high product quality, is simple to operate, saves time, trouble, and labor, has a fast processing speed, and greatly increases production output. Background Art
[0002] The tension clamp body is an important component of the tension clamp. Figure 1 The diagram shows the structure of the tension clamp body before the steel anchor holes on the curved surface of the tension clamp body are drilled. Figure 2 Schematic diagram of the structure of the tension clamp body after the steel anchor hole on the curved surface of the tension clamp body is drilled and formed. The processing of the steel anchor hole of the tension clamp body is difficult because it is different from conventional round holes. The steel anchor hole is located on the curved surface of the tension clamp body, and its center must be on the central axis of the tension clamp body. This particularity makes its processing more complicated than that of ordinary round holes. At present, the processing of steel anchor holes is mainly completed by horizontal lathes. Because the horizontal lathe can ensure that the lathe drill bit and the tension clamp body on the claw disk remain coaxial, the processing accuracy can be effectively guaranteed. However, the horizontal lathe processing method is very labor-intensive, which is specifically reflected in the following aspects: 1. The tension wire clamp body is clamped by a claw plate, and the loading and unloading of each workpiece involves the adjustment of the looseness and tightness of the claw plate; 2. The drill bit is installed on the tailstock of the lathe. When drilling, it is necessary to manually drag the tailstock, which weighs dozens of kilograms, located at the tail to the workpiece. After drilling the current workpiece, in order to ensure safety and provide enough space for disassembling and assembling the workpiece, it is necessary to drag the tailstock weighing dozens of kilograms to the tail of the lathe. The tailstock weighing dozens of kilograms needs to be manually dragged back and forth at least once to drill a workpiece; 3. During the drilling operation, the operator needs to rotate the handwheel on the tailstock at the same time to manually adjust the tailstock to move forward and backward along the lathe guide rail. It can be seen that the labor intensity is very high, the workers are exhausted, and generally need to be replaced the next day. Moreover, this traditional processing method has slow processing speed, low output, and low production efficiency. It takes an average of 1.5 minutes to process a workpiece. Calculated based on a workload of 7 hours a day, each person can process a maximum of 300 pieces per lathe.
[0003] In addition, traditional lathe processing methods are complicated to operate and must be operated by certified lathe operators. The labor cost is high, and the purchase cost of the lathe is also high. Utility Model Content
[0004] The purpose of the utility model is to provide a device for drilling and forming steel anchor holes on the curved surface of a tension clamp body, which is unique and ingenious in conception, greatly reduces the labor intensity of workers, reasonably and efficiently utilizes existing resources in a workshop, greatly reduces production costs, has self-centering in the drilling process, stable operation, high steel anchor hole processing accuracy, high product quality, simple operation, saves time, trouble and labor, has a fast processing speed, and greatly improves production output.
[0005] The utility model is realized by the following technical solutions:
[0006] A device for drilling and forming a concentric hole of a steel anchor hole on a curved surface of a tension clamp body, comprising a drilling drill driven by a drilling device, and a positioning component and a pressing component are fixedly installed on a workbench;
[0007] The positioning assembly includes a reference slide rail fixed on the workbench, the reference slider slides along the reference slide rail under the action of the screw transmission assembly, and a V-shaped workpiece groove for accommodating the tension clamp body is provided on the free end surface of the reference slider;
[0008] The clamping assembly comprises a clamping slide rail fixed on the workbench, one end surface of a clamping slider slidably connected to the clamping slide rail is used to clamp the tension clamp body, and the other end surface is fixedly connected to a piston rod of a cylinder fixed on the workbench;
[0009] The tension clamp body which is located in the V-shaped workpiece groove and is pressed by the pressing slide block is supported by a conical head arranged below the tension clamp body.
[0010] Preferably, the conical head is fixed integrally with the threaded rod, the threaded rod is threadedly connected to a nut sleeve fixedly supported on a base of the drilling device, and a small clamping bolt for clamping the threaded rod is provided on the side of the nut sleeve.
[0011] Preferably, the screw transmission assembly includes a screw with a handwheel, the screw is threadedly connected to a nut seat fixed on a workbench, the end of the screw is T-shaped, and the end of the screw is sleeved with a T-shaped shaft sleeve that matches it, and the T-shaped shaft sleeve is fixedly connected to the reference slider.
[0012] Preferably, a limiting ring threadably connected to the screw rod is provided between the hand wheel and the nut seat.
[0013] Preferably, an anti-rotation column is fixedly welded on the reference slide rail, and the anti-rotation column is used to eliminate the circumferential rotation force generated by the punching drill bit on the tension clamp body.
[0014] Preferably, a long-rod clamping bolt is provided through the reference slider for locking the reference slider.
[0015] Preferably, a copper gasket for protecting the workpiece is fixedly mounted on the notch surface of the V-shaped workpiece groove.
[0016] Preferably, the drilling equipment is a drilling machine.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] 1. The concept of the utility model is very unique and ingenious. When processing the new type of tension clamp body, the position fixing point where the product and the punching drill bit are coaxial is quickly found in the "first posture"; when drilling, the tension clamp body is placed in the "second posture", and the tension clamp body in the "second posture" is supported by the conical head, so that the tension clamp body can be self-centering during the drilling process. The real-time automatic centering function gives the tension clamp body extremely strong stability during the drilling process, thereby effectively ensuring the processing accuracy of the steel anchor hole and the product quality of the tension clamp body.
[0019] 2. The utility model only needs to sequentially perform the first positioning operation steps and the batch processing operation steps when processing new models of products. Once the first workpiece is used to find the position fixing point, the subsequent workpieces only need to directly perform the batch processing operation steps. The production is very convenient and fast, saving time, effort and labor, and greatly reducing the labor intensity of workers. The drilling processing speed is very fast, and it takes an average of 20 seconds to complete a workpiece. Calculated based on a workload of 7 hours a day, each person and each lathe can process 1,260 roots, which greatly improves the production output and has a very high production efficiency.
[0020] 3. The utility model reasonably and efficiently utilizes the existing resources of the workshop, and makes full use of the drilling machine equipment which is common in the workshop and has a procurement cost far lower than that of the lathe. The utility model has a simple structural design, is easy to implement and has low cost. The cost of the entire device is very low, which greatly reduces the manufacturing cost of the enterprise and creates considerable economic benefits for the enterprise.
[0021] 4. The utility model is easy to operate and has low requirements on professional skills. It does not need to rely on the high skills and rich experience of lathe operators, which further reduces the production costs of enterprises; and the recruitment and training process is also more economical and simple.
[0022] 5. The utility model is highly practical and has high practical application value. It has important guiding significance in the field of electric power hardware, especially in the technical field of processing steel anchor holes for tension clamp bodies. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the structure of the tension clamp body before the steel anchor holes on the curved surface of the tension clamp body are drilled.
[0024] Figure 2 It is a schematic diagram of the structure of the tension clamp body after the steel anchor holes on the curved surface of the tension clamp body are drilled and formed.
[0025] Figure 3 It is a schematic diagram of the operation flow of the drilling and forming method of the utility model.
[0026] Figure 4 This is a schematic diagram of the structure of the drilling device of the utility model. Figure 1 .
[0027] Figure 5 This is a schematic diagram of the structure of the drilling device of the utility model. Figure 2 .
[0028] Figure 6 This utility model Figure 5 Local zoom Figure 1 .
[0029] Figure 7 This utility model Figure 5 Local zoom Figure 2 .
[0030] Figure 8 It is a structural sectional view of the positioning component of the utility model.
[0031] In the figure: 1. tension clamp body; 11. round hole end; 12. flat head end; 13. curved surface; 14. steel anchor hole; 2. drilling machine; 21. punching drill bit; 22. workbench; 23. base; 31. conical head; 32. nut sleeve; 33. threaded rod; 34. small clamping bolt; 41. positioning assembly; 410. limit ring; 411. reference slide rail; 412. reference slider; 413. handwheel; 414. screw rod; 415. nut seat; 416. V-shaped workpiece groove; 417. copper gasket; 418. long rod clamping bolt; 419. T-type bushing; 42. clamping assembly; 421. clamping slide rail; 422. clamping slider; 423. cylinder; 5. anti-heeling column. DETAILED DESCRIPTION
[0032] In order to enable readers to better understand the design purpose of the utility model, the technical solution described in the utility model is further described in combination with the embodiments below. It should be noted that the directional nouns that may be involved in the following paragraphs, including but not limited to "up, down, left, right, front, back", etc., are based on the visual directions shown in the corresponding drawings of the specification, and they should not be and should not be regarded as limiting the protection scope or technical solution of the utility model. The purpose is only to facilitate technicians in this field to better understand the technical solution created by the utility model.
[0033] In the description of this specification, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0034] Embodiment 1
[0035] As Figure 3 shown, a concentric drilling forming device for the steel anchor hole on the bent surface of the strain clamp body includes a drilling bit 21 driven by a drilling device, and a positioning component 41 and a pressing component 42 are fixedly installed on a workbench 22. The positioning component 41 includes a reference slide rail 411 fixed on the workbench 22, a reference slider 412 slides along the reference slide rail 411 under the action of a screw drive assembly, and a V-shaped workpiece groove 416 for accommodating the strain clamp body 1 is formed on the free end surface of the reference slider 412. The pressing component 42 includes a pressing slide rail 421 fixed on the workbench 22, one end surface of a pressing slider 422 slidably connected to the pressing slide rail 421 is used to press the strain clamp body 1, and the other end surface is fixedly connected to the piston rod of a cylinder 423 fixed on the workbench 22; the strain clamp body 1 located in the V-shaped workpiece groove 416 and pressed by the pressing slider 422 is supported by a tapered head 31 arranged below the strain clamp body 1. In this embodiment, the drilling device is preferably a drill press 2.
[0036] The operation method of the concentric drilling forming device for the steel anchor hole on the bent surface of the strain clamp body in this embodiment includes a first positioning operation step and a batch processing operation step.
[0037] The first positioning operation step includes the following:
[0038] S1: Place the strain clamp body 1 in the first posture; that is, place the strain clamp body 1 vertically with the circular hole end 11 of the strain clamp body 1 facing upward.
[0039] S2: Use the positioning assembly 41 and the clamping assembly 42 fixed on the workbench 22 to clamp the tension clamp body 1 of step S1; the positioning assembly 41 acts as a reference, and the clamping assembly 42 acts as a clamping assembly; the positioning assembly 41 and the clamping assembly 42 are pre-positioned in the Y-axis direction during installation and placement, so that the clamped tension clamp body 1 is aligned with the punch drill 21 in the Y-axis direction. The V-shaped workpiece groove 416 is V-shaped, which is more inclusive and versatile when facing tension clamp bodies 1 of different diameters. Place the tension clamp body 1 into the V-shaped workpiece groove 416 according to the posture of S1, and then start the cylinder 423. The piston rod of the cylinder 423 pushes the clamping assembly 42 to slide along the clamping slide rail 421 until the tension clamp body 1 is clamped.
[0040] S3: Use the punching drill bit 21 that can move up and down to calibrate the coaxiality between the tension clamp body 1 and the punching drill bit 21; if they are not coaxial, move the position of the tension clamp body 1 in the X-axis direction until the central axis of the tension clamp body 1 is colinear with the central axis of the punching drill bit 21. Turn the manual adjustment wheel of the drilling machine 2 to move the punching drill bit 21 downward, and observe with the naked eye whether the punching drill bit 21 can enter the circular hole end 11. The diameter of the punching drill bit 21 is equivalent to the diameter of the circular hole end 11, so the fact that the punching drill bit 21 can enter the circular hole end 11 means that the punching drill bit 21 is already coaxial with the circular hole end 11. If the punching drill bit 21 cannot enter the circular hole end 11, use the screw transmission assembly to drive the reference slider 412 to slide along the reference slide rail 411. The force of the cylinder 423 does not need to be set very large. Under the action of the cylinder 423, the clamping slider 422 only needs to exert a certain gripping force. Therefore, when the reference slider 412 moves back and forth on the X-axis, the piston rod of the cylinder 423 will also move back and forth in coordination, that is, in this process, the clamping slider 422 will always dynamically fit the tension clamp body 1. In this way, the positioning component 41, the clamping component 42, and the tension clamp body 1 are equivalent to a whole, and the position in the X-axis direction is changed synchronously (when the positioning component 41 and the clamping component 42 are installed on the workbench, the position in the Y-axis direction has been found), until the tension clamp body 1 is coaxial with the punching drill 21.
[0041] S4: After the tension clamp body 1 is coaxial with the punching drill bit 21, lock the position of the positioning component 41, loosen the clamping component 42 of the clamping piece, and take out the tension clamp body 1; in this way, the position of the positioning component 41 is determined. That is, after the coaxial position is found, the position of the positioning component 41 is fixed by the locking piece, and then the piston rod of the cylinder 423 is retracted, and the slider 422 is pressed away from the tension clamp body 1, and the first workpiece is taken out. For the first workpiece, it is then turned 180°, and the steel anchor hole 14 can be processed according to the batch processing operation steps. The subsequent workpieces can be directly processed according to the batch processing operation steps.
[0042] The batch processing operation steps include the following:
[0043] P1: Place the tension clamp body 1 in a second posture; that is, place the tension clamp body 1 vertically with the flat head end 12 of the tension clamp body 1 facing upward.
[0044] P2: The tension clamp body 1 in step P1 is based on the positioning assembly 41, and the round hole end 11 of the tension clamp body 1 is supported on the conical head 31; after the tension clamp body 1 is placed, the tension clamp body 1 is pressed by the clamping assembly 42. After the first positioning operation step, the positioning assembly 41 is the reference, and the tension clamp body 1 is placed in the V-shaped workpiece groove 416 in the second posture, and the tension clamp body 1 is supported by the conical head 31. At this time, the position of the tension clamp body 1 on the X-axis, Y-axis, and Z-axis is determined, and the tension clamp body 1 and the punching drill 21 remain coaxial. Start the cylinder 423, and the clamping slider 422 applies a certain extrusion force to the tension clamp body 1, and the coaxial state of the tension clamp body 1 is maintained.
[0045] P3: Use the punching drill bit 21 to drill the steel anchor hole 14 on the curved surface 13 of the tension clamp body 1; the center of the steel anchor hole 14 thus formed is on the axis of the tension clamp body 1. During the drilling process, the anti-rotation column 5 eliminates the circumferential rotation force of the punching drill bit 21 on the tension clamp body 1. Under the joint action of the reference slider 412, the clamping slider 422, and the conical head 31, the tension clamp body 1 achieves real-time self-centering and stably maintains a coaxial relationship with the punching drill bit 21.
[0046] The method of this embodiment is very unique and ingenious. When processing a new type of tension clamp body, the position fixing point where the product and the punching drill bit are coaxial is quickly found in the "first posture"; when drilling, the tension clamp body is placed in the "second posture", and the tension clamp body in the "second posture" is supported by a conical head, so that the tension clamp body can be self-centering during the drilling process. The real-time automatic centering function gives the tension clamp body extremely strong stability during the drilling process, thereby effectively ensuring the processing accuracy of the steel anchor hole and the product quality of the tension clamp body.
[0047] In this embodiment, it is only necessary to perform the first positioning operation steps and the batch processing operation steps in sequence when processing new models of products. Once the position fixing point is found using the first workpiece, the subsequent workpieces only need to directly perform the batch processing operation steps. The production is very convenient and fast, saving time, effort and labor, and greatly reducing the labor intensity of workers. The drilling processing speed is very fast, and it takes an average of 20 seconds to complete a workpiece. Calculated based on a workload of 7 hours a day, each person and each lathe can process 1,260 roots, which greatly improves the production output and has a very high production efficiency.
[0048] This embodiment is highly practical and has high practical application value. It has important guiding significance in the field of power hardware, especially in the technical field of processing steel anchor holes for tension clamp bodies.
[0049] This embodiment reasonably and efficiently utilizes the existing resources of the workshop, and makes full use of the drilling machine equipment which is common in the workshop and has a procurement cost far lower than that of the lathe. In addition, the device structure used in the method of this embodiment is simple in design, easy to implement and low in cost. The cost of the entire device is very low, which greatly reduces the manufacturing cost of the enterprise and creates considerable economic benefits for the enterprise.
[0050] The drilling device of this embodiment is easy to operate, has low requirements for professional skills, does not need to rely on the high skills and rich experience of lathe operators, and further reduces the production cost of the enterprise; and the recruitment and training process is also more economical and simple.
[0051] Example 2
[0052] Based on Example 1, this example continues to describe in detail the technical features involved therein and the functions and roles played by the technical features in the utility model, so as to help technicians in this field fully understand the technical solution of the utility model and reproduce it.
[0053] In this embodiment, the conical head 31 is fixed integrally with the threaded rod 33, and the threaded rod 33 is threadedly connected with the nut sleeve 32 fixedly supported on the base 23 of the drilling equipment, and a small clamping bolt 34 is provided on the side of the nut sleeve 32 to clamp the threaded rod 33. Different types of tension clamp bodies 1 have different lengths, so the height of the conical head 31 is designed to be adjustable in order to be suitable for different models of products. It has strong versatility and practicality.
[0054] The screw drive assembly includes a screw 414 provided with a hand wheel 413, the screw 414 is threadedly connected to a nut seat 415 fixed on the workbench 22, the end of the screw 414 is T-shaped, and the end of the screw 414 is sleeved with a T-shaped shaft sleeve 419 adapted thereto, and the T-shaped shaft sleeve 419 is fixedly connected to the reference slider 412. When the hand wheel 413 is turned, the end of the screw 414 rotates in the T-shaped shaft sleeve 419, and the screw 414 and the nut seat 415 convert the rotational motion of the hand wheel 413 into a linear motion of the screw 414 on the X-axis, so that the reference slider 412 slides along the reference slide rail 411. This embodiment has a simple structural design, is easy to implement, and has low cost.
[0055] A limit ring 410 is also provided between the hand wheel 413 and the nut seat 415 and is threadedly connected to the screw rod 414. The limit ring 410 plays a limiting role and is connected to the screw rod 414 nut. Rotating the limit ring 410 can change the position of the limit ring 410 on the screw rod 414, thereby indirectly changing the linear motion stroke of the screw rod 414.
[0056] The reference slide rail 411 is also fixedly welded with an anti-rotation column 5, which is used to eliminate the circumferential rotation force generated by the punching drill bit 21 on the tension clamp body 1. In step P1, when the tension clamp body 1 is placed, the flat head end 12 is brought into contact with the anti-rotation column 5; the fixed anti-rotation column 5 is used to eliminate the circumferential rotation force generated by the punching drill bit 21 on the tension clamp body 1. The punching drill bit 21 will inevitably have a rotation force acting on the tension clamp body 1 during the drilling process. In order to prevent the tension clamp body 1 from rotating, a fixed anti-rotation column 5 is directly installed relative to the workbench 22, and the anti-rotation column 5 is used to eliminate the rotation force. It is simple, practical and low-cost.
[0057] The reference slider 412 is penetrated by a long rod clamping bolt 418 for locking the reference slider 412. The friction between the long rod clamping bolt 418 and the workbench 22 is used to lock the reference slider 412. The main function of the locking design is to prevent the operator from accidentally turning the hand wheel 413. The vibration of the drilling machine 2 needs to overcome the resistance of the screw rod 414 before changing the position of the reference slider 412. Since the screw rod 414 is difficult to be rotated without the assistance of the hand wheel 413, the vibration generated by the drilling machine 2 during operation will not affect the position of the reference slider 412.
[0058] A copper gasket 417 for protecting the workpiece is fixedly mounted on the notch surface of the V-shaped workpiece groove 416. The copper gasket 417 is used to protect the tension clamp body 1 and prevent the surface of the tension clamp body 1 from being worn.
[0059] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. All equivalent changes and modifications in shape, structure, features and spirit within the scope of the claims of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A device for drilling and forming a concentric hole for a steel anchor hole on a curved surface of a tension clamp body, comprising a drilling drill (21) driven by a drilling device, characterized in that: A positioning assembly (41) and a pressing assembly (42) are fixedly mounted on the workbench (22); The positioning assembly (41) comprises a reference slide rail (411) fixed on the workbench (22); a reference slider (412) slides along the reference slide rail (411) under the action of a screw drive assembly; a V-shaped workpiece groove (416) for accommodating the tension clamp body (1) is provided on a free end surface of the reference slider (412); The clamping assembly (42) comprises a clamping slide rail (421) fixed on the workbench (22); one end surface of a clamping slider (422) slidably connected to the clamping slide rail (421) is used to clamp the tension clamp body (1), and the other end surface is fixedly connected to a piston rod of a cylinder (423) fixed on the workbench (22); The tension clamp body (1) located in the V-shaped workpiece groove (416) and pressed by the pressing slide block (422) is supported by a conical head (31) arranged below the tension clamp body (1).
2. The device for co-centering the steel anchor hole of the curved surface of the tension clamp body according to claim 1 is characterized in that: The conical head (31) is fixed integrally with the threaded rod (33), and the threaded rod (33) is threadedly connected to a nut sleeve (32) fixedly supported on a base (23) of the drilling device, and a small clamping bolt (34) is provided on the side of the nut sleeve (32) for clamping the threaded rod (33).
3. The device for co-centering the steel anchor hole of the curved surface of the tension clamp body according to claim 1 is characterized in that: The screw drive assembly comprises a screw (414) provided with a hand wheel (413), the screw (414) being threadedly connected to a nut seat (415) fixed on a workbench (22), the end of the screw (414) being T-shaped, and the end of the screw (414) being sleeved with a T-shaped shaft sleeve (419) matching the end of the screw (414), and the T-shaped shaft sleeve (419) being fixedly connected to the reference slider (412).
4. The device for co-centering the steel anchor hole of the curved surface of the tension clamp body according to claim 3 is characterized in that: A limiting ring (410) threadedly connected to the screw rod (414) is also provided between the hand wheel (413) and the nut seat (415).
5. The device for co-centering the steel anchor hole of the curved surface of the tension clamp body according to claim 1 is characterized in that: An anti-rotation column (5) is also fixedly welded to the reference slide rail (411), and the anti-rotation column (5) is used to eliminate the circumferential rotation force generated by the punching drill bit (21) on the tension clamp body (1).
6. The device for co-centering the steel anchor hole of the curved surface of the tension clamp body according to claim 1 is characterized in that: The reference slider (412) is provided with a long rod clamping bolt (418) which is used to lock the reference slider (412).
7. The device for co-centering the steel anchor hole of the curved surface of the tension clamp body according to claim 1 is characterized in that: A copper gasket (417) for protecting the workpiece is fixedly mounted on the notch surface of the V-shaped workpiece groove (416).
8. The device for co-centering the steel anchor hole of the curved surface of the tension clamp body according to claim 1 is characterized in that: The drilling equipment is a drilling machine (2).