Method for forming concentric drilling of steel anchor holes on the bending surface of tension clamp body
By employing a positioning method using clamping and pressing components on a drilling machine, combined with a conical head support, self-centering drilling of the tension clamp body is achieved, solving the problems of high labor intensity and low efficiency in existing technologies, and realizing high-precision and low-cost steel anchor hole processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU JK ELECTRICAL EQUIP CO LTD
- Filing Date
- 2024-07-26
- Publication Date
- 2026-06-30
AI Technical Summary
Existing technologies suffer from high labor intensity, low production efficiency, and high cost when machining steel anchor holes for tension clamp bodies, and it is difficult to achieve self-centering and high-precision machining.
The method of initial positioning operation and batch processing operation is adopted. The coaxial positioning and self-centering of the tension clamp body are achieved on the drilling machine by using clamping parts and clamping components. The stability of the drilling process is ensured by the conical head support, and the processing is carried out in conjunction with the drilling machine equipment.
It significantly reduces the labor intensity of workers, improves production efficiency, reduces production costs, ensures the processing accuracy and product quality of steel anchor holes, and has a fast processing speed, resulting in a substantial increase in production volume.
Smart Images
Figure CN118635936B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of power fitting manufacturing technology. Specifically, it relates to a unique and ingenious method for drilling and forming concentric steel anchor holes on the curved surface of a tension clamp body, which significantly reduces the labor intensity of workers, makes rational and efficient use of existing workshop resources, significantly reduces production costs, enables self-centering during the drilling process, ensures stable operation, achieves high precision in steel anchor hole processing, produces high-quality products, is simple to operate, saves time, effort, and labor, has a fast processing speed, and significantly increases production output. It also relates to the tension clamp body manufactured by this method. Background Technology
[0002] The tension clamp body is an important component of the tension clamp. Figure 1 The diagram shown is a schematic of the tension clamp body structure before the steel anchor holes on the curved surface of the tension clamp body are drilled. Figure 2 A schematic diagram of the tension clamp body structure after drilling and forming the steel anchor holes on the curved surface of the tension clamp body. Machining the steel anchor holes in the tension clamp body is challenging because they differ from conventional round holes. The steel anchor holes are located on the curved surface of the tension clamp body, and their centers must lie on the central axis of the tension clamp body. This unique characteristic makes the machining process more complex than that of ordinary round holes. Currently, the machining of steel anchor holes is mainly accomplished using a horizontal lathe. This is because a horizontal lathe can ensure that the lathe drill bit and the tension clamp body on the chuck remain coaxial, effectively guaranteeing machining accuracy. However, the horizontal lathe machining method is extremely labor-intensive, specifically in the following ways: 1. The tension clamp body is held in place by a chuck disc, and the loading and unloading of each workpiece involves adjusting the tightness of the chuck disc; 2. The drill bit is mounted on the lathe tailstock, requiring manual dragging of the tailstock, which weighs tens of kilograms, to the workpiece during drilling. After drilling the current workpiece, to ensure safety and provide sufficient space for disassembly and assembly, the tailstock, weighing tens of kilograms, needs to be dragged back and forth to the lathe again. This requires manual dragging of the tailstock at least once per workpiece; 3. During drilling, the operator needs to simultaneously rotate the handwheel on the tailstock to manually adjust its movement along the lathe guide rails. As can be seen, the labor intensity is extremely high, leaving workers exhausted, and generally requiring a replacement the next day. Moreover, this traditional machining method is slow, has low output, and low production efficiency. On average, it takes 1.5 minutes to process one workpiece, and based on a 7-hour workday, each person can only process a maximum of 300 pieces per lathe.
[0003] In addition, traditional lathe machining is complex to operate, requires certified lathe operators, resulting in high labor costs, and the purchase cost of the lathe is also high. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a unique and ingenious method for drilling and forming concentric steel anchor holes on the curved surface of a tension clamp body. This method significantly reduces the labor intensity of workers, makes rational and efficient use of existing workshop resources, significantly reduces production costs, enables self-centering during the drilling process, ensures stable operation, achieves high precision in steel anchor hole processing, produces high-quality products, is simple to operate, saves time, effort, and labor, has a fast processing speed, and significantly increases production output. The invention also provides a tension clamp body manufactured by this method.
[0005] This invention is achieved through the following technical solution:
[0006] A method for forming concentrically drilled steel anchor holes on the curved surface of a tension clamp body includes an initial positioning operation and a batch processing operation.
[0007] The initial positioning operation steps include the following:
[0008] S1: Place the tension clamp body in the first position; that is, place the tension clamp body vertically with the round hole end of the tension clamp body facing upward;
[0009] S2: Clamp the tension clamp body from step S1 using a clamping component; the clamping component includes a positioning component that serves as a reference and a clamping component that serves as a clamping component; the clamping component is pre-positioned in the Y-axis direction during installation and placement so that the clamped tension clamp body is aligned with the drilling bit in the Y-axis direction.
[0010] S3: Use a drill bit that can move up and down to calibrate the coaxiality of the tension clamp body and the drill bit; if they are not coaxial, move the position of the tension clamp body in the X-axis direction until the central axis of the tension clamp body is collinear with the central axis of the drill bit.
[0011] S4: After the tension clamp body and the drilling bit are coaxial, lock the position of the positioning component, loosen the clamping component, and take out the tension clamp body; in this way, the position of the positioning component is determined.
[0012] The batch processing operation steps include the following:
[0013] P1: Place the tension clamp body in the second posture; that is, place the tension clamp body vertically with the flat end of the tension clamp body facing upward;
[0014] P2: In step P1, the tension clamp body is based on the positioning component, and the round hole end of the tension clamp body is supported on the conical head; after the tension clamp body is placed, the tension clamp body is pressed with the clamping component.
[0015] P3: Use a drilling bit to drill steel anchor holes on the curved surface of the tension clamp body; the center of the steel anchor holes thus formed is on the axis of the tension clamp body.
[0016] Preferably, in step P1, when placing the tension clamp body, the flat end is brought into contact with the anti-rotation post; the fixed anti-rotation post is used to eliminate the circumferential rotational force generated by the drilling bit on the tension clamp body.
[0017] Preferably, the drilling bit is a drill bit from a drilling machine;
[0018] Both the positioning and clamping components are fixed on the worktable of the drilling machine;
[0019] The positioning component includes a reference slide rail fixed on the worktable. The reference slider slides along the reference slide rail under the action of the lead screw transmission component. A V-shaped workpiece groove is formed on the free end face of the reference slider.
[0020] The clamping assembly includes a clamping slide rail fixed on the worktable, and a clamping slider slidably connected to the clamping slide rail. One end face of the clamping slider is used to clamp the workpiece, and the other end face is fixedly connected to the piston rod of a cylinder fixed on the worktable.
[0021] Preferably, the lead screw drive assembly includes a lead screw with a handwheel, the lead screw is threadedly connected to a nut seat fixed on the worktable, the end of the lead screw is T-shaped and a T-shaped bushing adapted to the end of the lead screw is fitted to the end of the lead screw, and the T-shaped bushing is fixedly connected to the reference slider.
[0022] Preferably, a limiting ring that is threadedly connected to the lead screw is also provided between the handwheel and the nut seat.
[0023] Preferably, the anti-rotation column is fixedly connected to the reference slide rail by welding.
[0024] Preferably, a long rod clamping bolt that serves to lock the reference slider is provided through the reference slider.
[0025] Preferably, a copper gasket is fixedly installed on the groove surface of the V-shaped workpiece groove to protect the workpiece.
[0026] Preferably, the tapered head is fixedly integrated with the threaded rod, and the threaded rod is threadedly connected to a nut sleeve fixedly supported on the base of the drilling machine. The nut sleeve has a small clamping bolt on its side that acts to clamp the threaded rod.
[0027] A tension clamp body, wherein the steel anchor holes on the curved surface of the tension clamp body are manufactured by the above-described method of forming the steel anchor holes on the curved surface of the tension clamp body by drilling them in a concentric circle.
[0028] Compared with the prior art, the beneficial effects of the present invention are:
[0029] 1. The method of this invention is very unique and ingenious. When processing the new model of tension clamp body, the product and the drilling bit are quickly located and fixed in a "first posture" to keep them coaxial. When drilling, the tension clamp body is placed in a "second posture" and supported by a conical head. This allows the tension clamp body to self-center during drilling. The real-time automatic centering function gives the tension clamp body extremely strong stability during drilling, thereby effectively ensuring the processing accuracy of the steel anchor hole and the product quality of the tension clamp body.
[0030] 2. This invention only requires sequential operation of the initial positioning and batch processing steps when processing new product models. Once the fixed position is found using the first workpiece, subsequent workpieces can be directly processed using the batch processing steps, making production very convenient and fast, saving time, effort, and labor, and significantly reducing the labor intensity of workers. Moreover, the drilling speed is very fast, with an average time of 20 seconds per workpiece. Based on a 7-hour workday, each person and each lathe can process 1260 pieces, greatly increasing production output and achieving high production efficiency.
[0031] 3. This invention makes reasonable and efficient use of existing workshop resources, and makes full use of drilling equipment commonly found in workshops, which has a procurement cost far lower than that of lathes. Moreover, the device structure used in this invention is simple, easy to implement, and low in cost. The cost of the entire device is very low, which greatly reduces the manufacturing cost of enterprises and creates considerable economic benefits for enterprises.
[0032] 4. The drilling device of the present invention is simple to operate, requires low professional skills, does not rely on the high skills and rich experience of machinists, further reducing the production costs of enterprises; and the recruitment and training process is also more economical and convenient.
[0033] 5. This invention is highly practical and has significant practical application value. It has important guiding significance in the field of power fittings, especially in the field of processing steel anchor holes for tension clamp bodies. Attached Figure Description
[0034] Figure 1 This is a schematic diagram of the tension clamp body structure before the steel anchor holes on the curved surface of the tension clamp body are drilled.
[0035] Figure 2 This is a schematic diagram of the tension clamp body structure after the steel anchor holes on the curved surface of the tension clamp body have been drilled and formed.
[0036] Figure 3 This is a schematic diagram of the drilling and forming method of the present invention.
[0037] Figure 4 This is a schematic diagram of the drilling device structure of the present invention. Figure 1 .
[0038] Figure 5 This is a schematic diagram of the drilling device structure of the present invention. Figure 2 .
[0039] Figure 6 This is the present invention. Figure 5 Local magnification Figure 1 .
[0040] Figure 7 This is the present invention. Figure 5 Local magnification Figure 2 .
[0041] Figure 8 This is a cross-sectional view of the positioning component of the present invention.
[0042] In the diagram: 1. Tension clamp body; 11. Round hole end; 12. Flat head end; 13. Bending surface; 14. Steel anchor hole; 2. Drill press; 21. Drill bit; 22. Worktable; 23. Base; 31. Conical head; 32. Nut sleeve; 33. Threaded rod; 34. Small clamping bolt; 41. Positioning assembly; 410. Limiting ring; 411. Reference slide rail; 412. Reference slider; 413. Handwheel; 414. Lead screw; 415. Nut seat; 416. V-shaped workpiece groove; 417. Copper washer; 418. Long rod clamping bolt; 419. T-shaped bushing; 42. Clamping assembly; 421. Clamping slide rail; 422. Clamping slider; 423. Cylinder; 5. Anti-rotation column. Detailed Implementation
[0043] To enable readers to better understand the design intent of this invention, the technical solutions described below are further described in conjunction with embodiments. It should be noted that the directional terms that may appear in the following paragraphs, including but not limited to "up," "down," "left," "right," "front," and "back," are based on the visual orientation shown in the accompanying drawings and should not be considered as limitations on the scope of protection or technical solutions of this invention. Their purpose is merely to facilitate a better understanding of the technical solutions described in this invention by those skilled in the art.
[0044] In the description of this specification, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0045] Example 1
[0046] like Figure 3As shown, a method for forming concentrically drilled steel anchor holes on the curved surface of a tension clamp body includes an initial positioning operation step and a batch processing operation step.
[0047] The initial positioning operation steps include the following:
[0048] S1: Place the tension clamp body 1 in the first posture; that is, place the tension clamp body 1 vertically with the round hole end 11 of the tension clamp body 1 facing upward.
[0049] S2: The tension clamp body 1 from step S1 is clamped using clamping components. The clamping components include a positioning component 41 that serves as a reference and a clamping component 42 that provides pressure. The clamping components are pre-positioned in the Y-axis direction during installation, aligning the clamped tension clamp body 1 with the drilling bit 21 in the Y-axis direction. The tension clamp body 1 is clamped by the clamping component 42 with the positioning component 41 as a reference. At this time, the positioning component 41, the clamping component 42, and the tension clamp body 1 can be considered as a whole. When the position of the tension clamp body 1 needs to be changed, the positioning component 41, the clamping component 42, and the tension clamp body 1 are moved as a whole in the X-axis direction.
[0050] S3: Use the vertically movable drill bit 21 to calibrate the coaxiality of the tension clamp body 1 and the 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 collinear with the central axis of the drill bit 21. The diameter of the steel anchor hole is similar to the diameter of the round hole end 11, so select a drill bit 21 with a diameter similar to that of the round hole end 11. Move the drill bit 21 down and visually observe whether the drill bit 21 just enters the round hole end 11 of the tension clamp body 1. If it can enter, it means that the drill bit 21 and the tension clamp body 1 are coaxial; if not, continue to adjust the position of the tension clamp body 1. This coaxial calibration operation is simple and can be done by adjusting back and forth. The coaxial calibration is very fast.
[0051] S4: After the tension clamp body 1 is coaxial with the drilling bit 21, lock the position of the positioning component 41, release the clamping component 42, and remove the tension clamp body 1; thus, the position of the positioning component 41 is determined. The length, diameter, and other dimensions of the tension clamp body 1 will vary depending on the model. The initial positioning operation is only required when processing the first workpiece of a new model. After determining the position of the positioning component 41 using the first workpiece, subsequent workpieces can be processed directly according to the batch processing operation steps, saving time and effort, and making the operation convenient and quick.
[0052] Batch processing steps include the following:
[0053] P1: Place the tension clamp body 1 in the second posture; that is, place the tension clamp body 1 vertically with the flat end 12 of the tension clamp body 1 facing upward. For the first workpiece of the new model, it is rotated 180 degrees and placed; for subsequent workpieces, it is placed directly in the second posture.
[0054] P2: In step P1, the tension clamp body 1 is positioned with the positioning component 41 as the reference, 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 clamping component 42 is used to clamp the tension clamp body 1. After the initial positioning operation, when the tension clamp body 1 is placed against the positioning component 41, the position of the tension clamp body 1 in the X and Y axis directions is determined. As for the Z axis direction, the round hole end 11 of the tension clamp body 1 is supported on the conical head 31, and the height of the conical head 31 can be adjusted to determine the position. Then, the clamping component 42 is used to maintain the position of the tension clamp body 1. At this time, the tension clamp body 1 is coaxial with the drilling bit 21. If the position of the tension clamp body 1 is only maintained by the clamping component, then during the drilling process, due to the long size of the tension clamp body, the tail of the tension clamp body 1 will inevitably wobble, and once it wobbles, it will cause inaccurate drilling of the steel anchor hole. In this embodiment, a conical head is designed at the bottom of the circular hole end of the tension clamp body. When the circular hole end of the tension clamp body is supported on the cone, it will naturally move to the center position of the cone, thereby achieving real-time automatic centering during the drilling process. The cooperation of the conical head 31, the positioning component 41, and the clamping component 42 makes the tension clamp body 1 very stable during the drilling process, and the drilled steel anchor hole 14 has high accuracy.
[0055] P3: Use the drilling bit 21 to drill steel anchor holes 14 on the curved surface 13 of the tension clamp body 1; the center of the steel anchor holes 14 formed in this way is on the axis of the tension clamp body 1.
[0056] The method in this embodiment is very unique and ingenious. When processing the new model of tension clamp body, the product and the drilling bit are quickly located and fixed in a "first posture" to keep them coaxial. When drilling, the tension clamp body is placed in a "second posture" and supported by a conical head. This allows the tension clamp body to self-center during drilling. The real-time automatic centering function gives the tension clamp body extremely strong stability during drilling, thereby effectively ensuring the processing accuracy of the steel anchor hole and the product quality of the tension clamp body.
[0057] In this embodiment, the initial positioning operation and batch processing operation steps are only required when processing new product models. Once the fixed position point is found using the first workpiece, the subsequent workpieces can be directly processed using the batch processing operation steps. Production is very convenient and fast, saving time, effort and labor, and greatly reducing the labor intensity of workers. Moreover, the drilling speed is very fast, with an average time of 20 seconds per workpiece. Based on a 7-hour workday, each person and each lathe can process 1260 pieces, greatly increasing production output and achieving high production efficiency.
[0058] This embodiment is highly practical and has significant practical application value. It has important guiding significance in the field of power fittings, especially in the field of processing steel anchor holes for tension clamp bodies.
[0059] Example 2
[0060] Based on Example 1, this example continues to describe in detail the technical features involved and the functions and roles of these technical features in the present invention, so as to help those skilled in the art to fully understand the technical solution of the present invention and reproduce it.
[0061] like Figures 4 to 8 As shown, the drilling bit 21 in this embodiment is a drill bit from a drilling machine. The procurement cost of a drilling machine is much lower than that of a lathe, and almost every power fittings manufacturer has a drilling machine. This embodiment cleverly combines an existing drilling machine, making reasonable use of workshop resources on the one hand, and significantly reducing the processing cost of the steel anchor hole 14 on the other.
[0062] In step P1, when placing the tension clamp body 1, the flat end 12 is brought into contact with the anti-rotation post 5; the stationary anti-rotation post 5 eliminates the circumferential rotational force generated by the drill bit 21 on the tension clamp body 1. During drilling, the drill bit 21 will inevitably exert a rotational force on the tension clamp body 1. To prevent the tension clamp body 1 from rotating, a stationary anti-rotation post 5 is directly installed relative to the worktable 22. The anti-rotation post 5 eliminates the rotational force, which is simple, practical, and low-cost.
[0063] The drilling device used in this embodiment includes a positioning component 41, a clamping component 42, and a conical head 31. Both the positioning component 41 and the clamping component 42 are fixed on the worktable 22 of the drilling machine 2. The positioning component 41 includes a reference slide rail 411 fixed on the worktable 22. A reference slider 412 slides along the reference slide rail 411 under the action of a lead screw drive assembly. A V-shaped workpiece groove 416 is formed on the free end face of the reference slider 412. The clamping component 42 includes a clamping slide rail 421 fixed on the worktable 22. One end face of the clamping slider 422, which is slidably connected to the clamping slide rail 421, is used to clamp the workpiece, and the other end face is fixedly connected to the piston rod of a cylinder 423 fixed on the worktable 22. In this embodiment, the anti-heel rotation column 5 is fixedly connected to the reference slide rail 411 by welding.
[0064] This embodiment describes a method for forming the steel anchor holes on the curved surface of the tension clamp body using concentric drilling, including initial positioning and batch processing steps.
[0065] The initial positioning operation steps include the following:
[0066] S1: Place the tension clamp body 1 in the first posture; that is, place the tension clamp body 1 vertically with the round hole end 11 of the tension clamp body 1 facing upward;
[0067] S2: The tension clamp body 1 from step S1 is clamped using clamping components. The clamping components include a positioning component 41 that serves as a reference and a clamping component 42 that provides pressure. The clamping components are pre-positioned in the Y-axis direction during installation, aligning the clamped tension clamp body 1 with the drilling bit 21 in the Y-axis direction. The V-shaped workpiece groove 416 is V-shaped, providing greater versatility and compatibility when dealing with tension clamp bodies 1 of different pipe diameters. The tension clamp body 1 is placed into the V-shaped workpiece groove 416 according to the posture in S1. Then, the cylinder 423 is activated, and the piston rod of the cylinder 423 pushes the clamping component 42 to slide along the clamping slide rail 421 until the tension clamp body 1 is clamped.
[0068] S3: Use the vertically movable drill bit 21 to calibrate the coaxiality of the tension clamp body 1 and the 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 collinear with the central axis of the drill bit 21. Rotate the manual adjustment wheel on the drill press 2 to move the drill bit 21 downwards. Visually observe whether the drill bit 21 can enter the round hole end 11. The diameter of the drill bit 21 is similar to the diameter of the round hole end 11, so if the drill bit 21 can enter the round hole end 11, it means that the drill bit 21 is coaxial with the round hole end 11. If the drill bit 21 cannot enter the round hole end 11, use the lead screw drive assembly to drive the reference slider 412 to slide along the reference slide rail 411. The force setting of the cylinder 423 does not need to be very large. Under the action of the cylinder 423, the pressing slider 422 only needs to provide 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 extend and retract in coordination. During this process, the clamping slider 422 will always dynamically fit against 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, synchronously changing their positions in the X-axis direction (when the positioning component 41 and the clamping component 42 are installed on the worktable, their positions in the Y-axis direction are already accurate) until the tension clamp body 1 is coaxial with the drilling bit 21.
[0069] S4: After the tension clamp body 1 and the drilling bit 21 are coaxial, lock the position of the positioning component 41, release the clamping component 42, and remove the tension clamp body 1; thus, 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 in place by the locking component. Then, the piston rod of the cylinder 423 retracts, pressing the slider 422 away from the tension clamp body 1, and the first workpiece is removed. For the first workpiece, it is then rotated 180°, and the steel anchor hole 14 can be machined according to the batch processing operation steps. Subsequent workpieces can be processed directly according to the batch processing operation steps.
[0070] Batch processing steps include the following:
[0071] P1: Place the tension clamp body 1 in the second posture; that is, place the tension clamp body 1 vertically with the flat end 12 of the tension clamp body 1 facing upward.
[0072] P2: In step P1, the tension clamp body 1 is positioned with the positioning component 41 as the reference, 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 clamping component 42 is used to clamp the tension clamp body 1. After the initial positioning operation, the positioning component 41 becomes the reference. 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 drilling bit 21 remain coaxial. The cylinder 423 is activated, and the clamping slider 422 applies a certain compressive force to the tension clamp body 1, thus maintaining the coaxial state of the tension clamp body 1.
[0073] P3: Using the drilling bit 21, steel anchor holes 14 are drilled on the curved surface 13 of the tension clamp body 1; the center of the steel anchor holes 14 formed in this way is on the axis of the tension clamp body 1. During the drilling process, the anti-rotation column 5 eliminates the circumferential rotational force exerted by the drilling bit 21 on the tension clamp body 1. Under the combined 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 steadily maintains its coaxial relationship with the drilling bit 21.
[0074] This embodiment of the lead screw drive assembly specifically includes a lead screw 414 equipped with a handwheel 413. The lead screw 414 is threadedly connected to a nut seat 415 fixed on the worktable 22. The end of the lead screw 414 is T-shaped, and a matching T-shaped bushing 419 is fitted to the end of the lead screw 414. The T-shaped bushing 419 is fixedly connected to the reference slider 412. Rotating the handwheel 413 causes the end of the lead screw 414 to rotate within the T-shaped bushing 419. The lead screw 414 and the nut seat 415 convert the rotational motion of the handwheel 413 into linear motion of the lead screw 414 on the X-axis, thereby causing the reference slider 412 to slide along the reference slide rail 411. This embodiment has a simple structural design, is easy to implement, and has low cost.
[0075] In this embodiment, a limiting ring 410 is also provided between the handwheel 413 and the nut seat 415, and is threadedly connected to the lead screw 414. The limiting ring 410 plays a limiting role. It is connected to the nut of the lead screw 414. Rotation can change the position of the limiting ring 410 on the lead screw 414, thereby indirectly changing the linear motion stroke of the lead screw 414.
[0076] In this embodiment, a long rod clamping bolt 418 is provided through the reference slider 412 to lock the reference slider 412. The friction between the long rod clamping bolt 418 and the worktable 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 handwheel 413. The vibration of the drilling machine 2 needs to overcome the resistance of the lead screw 414 to change the position of the reference slider 412. Since the lead screw 414 is difficult to turn without the assistance of the handwheel 413, the vibration generated by the drilling machine 2 during operation will not affect the position of the reference slider 412.
[0077] In this embodiment, a copper gasket 417 is fixedly installed on the groove surface of the V-shaped workpiece groove 416 to protect the workpiece. The copper gasket 417 is to protect the tension clamp body 1 and prevent the surface of the tension clamp body 1 from being worn.
[0078] In this embodiment, the tapered head 31 and the threaded rod 33 are fixedly integrated. The threaded rod 33 is threadedly connected to the nut sleeve 32, which is fixedly supported on the base 23 of the drilling machine 2. The nut sleeve 32 has a small clamping bolt 34 on its side, which serves to tighten the threaded rod 33. Different types of tension clamp bodies 1 have different lengths, so the height of the tapered head 31 is designed to be adjustable to accommodate different models of products. It has strong versatility and practicality.
[0079] In addition to the advantages of Embodiment 1, this embodiment also has the following advantages:
[0080] This embodiment makes reasonable and efficient use of existing workshop resources, making full use of drilling equipment commonly found in the workshop with procurement costs far lower than lathes. Furthermore, the device used in this embodiment has a simple structural design, is easy to implement, and has low cost. The overall cost of the device is very low, significantly reducing the enterprise's manufacturing costs and creating considerable economic benefits for the enterprise.
[0081] The drilling device in this embodiment is simple to operate, requires low professional skills, and does not rely on the high skills and rich experience of machinists, further reducing the production costs of enterprises; moreover, the recruitment and training process is also more economical and convenient.
[0082] Example 3
[0083] This embodiment provides a tension clamp body. The steel anchor hole 14 on the curved surface 13 of the tension clamp body 1 in this embodiment is manufactured by the concentric drilling method for the steel anchor hole on the curved surface of the tension clamp body described in Embodiment 1 or Embodiment 2.
[0084] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of the invention. All equivalent variations and modifications made in accordance with the shape, structure, features, and spirit of the claims of the present invention should be included within the scope of the claims of the present invention.
Claims
1. A method for forming concentrically drilled steel anchor holes on the bent surface of a tension clamp body, characterized in that... This includes initial positioning procedures and batch processing procedures. The initial positioning operation steps include the following: S1: Place the tension clamp body (1) in the first posture; that is, place the tension clamp body (1) vertically with the round hole end (11) of the tension clamp body (1) facing upward; S2: The tension clamp body (1) of step S1 is clamped by a clamping component; the clamping component includes a positioning component (41) that serves as a reference and a clamping component (42) that serves as a clamping component; the clamping component is pre-positioned in the Y-axis direction during installation and placement so that the clamped tension clamp body (1) is aligned with the drilling bit (21) in the Y-axis direction; S3: Use the up-and-down movable drilling bit (21) to calibrate the coaxiality of the tension clamp body (1) and the drilling 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 collinear with the central axis of the drilling bit (21). S4: After the tension clamp body (1) and the drilling bit (21) are coaxial, lock the position of the positioning component (41), release the clamping component (42) of the clamping part, and take out the tension clamp body (1); in this way, the position of the positioning component (41) is determined; The batch processing steps include the following: P1: Place the tension clamp body (1) in the second posture; that is, place the tension clamp body (1) vertically with the flat end (12) of the tension clamp body (1) facing upward; P2: In step P1, the tension clamp body (1) is based on the positioning component (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 component (42). P3: Use a drilling bit (21) to drill steel anchor holes (14) on the curved surface (13) of the tension clamp body (1); the center of the steel anchor holes (14) formed in this way is on the axis of the tension clamp body (1).
2. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 1, characterized in that: In step P1, when placing the tension clamp body (1), the flat end (12) is brought into contact with the anti-rotation post (5); the fixed anti-rotation post (5) is used to eliminate the circumferential rotation force generated by the drilling bit (21) on the tension clamp body (1).
3. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 2, characterized in that: The drilling bit (21) is a drill bit for a drilling machine; The positioning assembly (41) and the clamping assembly (42) are both fixed on the worktable (22) of the drilling machine (2); The positioning component (41) includes a reference slide rail (411) fixed on the worktable (22), and a reference slider (412) slides along the reference slide rail (411) under the action of the lead screw transmission component. A V-shaped workpiece groove (416) is provided on the free end face of the reference slider (412). The clamping assembly (42) includes a clamping slide rail (421) fixed on the worktable (22), and one end face of the clamping slider (422) slidably connected to the clamping slide rail (421) is used to clamp the workpiece, and the other end face is fixedly connected to the piston rod of the cylinder (423) fixed on the worktable (22).
4. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 3, characterized in that: The lead screw drive assembly includes a lead screw (414) with a handwheel (413). The lead screw (414) is threadedly connected to a nut seat (415) fixed on the worktable (22). The end of the lead screw (414) is T-shaped and a T-shaped bushing (419) is fitted to the end of the lead screw (414). The T-shaped bushing (419) is fixedly connected to the reference slider (412).
5. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 4, characterized in that: A limiting ring (410) that is threadedly connected to the lead screw (414) is also provided between the handwheel (413) and the nut seat (415).
6. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 3, characterized in that: The anti-rotation column (5) is fixedly connected to the reference slide rail (411) by welding.
7. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 3, characterized in that: The reference slider (412) is provided with a long rod clamping bolt (418) that serves to lock the reference slider (412).
8. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 3, characterized in that: A copper gasket (417) is fixedly installed on the groove surface of the V-shaped workpiece groove (416) to protect the workpiece.
9. The method for forming concentric drilling of steel anchor holes on the bent surface of the tension clamp body according to claim 3, characterized in that: The conical head (31) is fixed to the threaded rod (33). The threaded rod (33) is threadedly connected to the nut sleeve (32) fixedly supported on the base (23) of the drill press (2). The nut sleeve (32) has a small clamping bolt (34) on its side that clamps the threaded rod (33).