Multi-drill-bit numerical control drilling machine for automobile plate spring
By introducing an adjustment mechanism into a multi-drill CNC drilling machine for automotive leaf springs, and utilizing the cooperation of a threaded rod and a hand crank, the problem of reduced clamping effect caused by loose bolts and nuts is solved, achieving stable clamping and precise position adjustment during the drilling process, thus improving processing quality.
Patent Information
- Application Number
- CN202520390600.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The bolts and nuts of existing CNC drilling machines with multiple drill bits for automotive leaf springs loosen after prolonged use, resulting in reduced clamping effectiveness.
An adjustment mechanism, including a threaded rod and a hand crank, is adopted. Through the cooperation of the hand crank and the hand crank, the drilling table and the drill bit can be finely adjusted and clamped to ensure a stable fixation.
It improves the clamping stability and drill bit positioning accuracy during the drilling process, avoids wear problems caused by loose bolts and nuts, and ensures processing accuracy and efficiency.
Smart Images

Figure CN223789579U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to numerical control drilling technical field especially, relates to a kind of automobile leaf spring multi-drill numerical control drilling machine. BACKGROUND
[0002] Numerical control drilling machine is a kind of automatic mechanical equipment using digital control technology to accurately control drilling operation, it is mainly composed of mechanical body, numerical control system, driving device and auxiliary device, and the mechanical body provides support and movement basis for drilling operation, including workbench, column and main shaft component, through the program instruction of good pre-writing, the rotational speed, feed speed, drilling depth and the position parameter of drill bit on workbench are accurately controlled, to realize the accurate control of drilling process.Driving device is responsible for the instruction of numerical control system into actual mechanical movement, drives main shaft rotation and workbench movement, automobile leaf spring multi-drill numerical control drilling machine is designed specially for automobile leaf spring drilling, it takes solid machine bed as basic framework, carries each key component, but needs to be clamped during use.
[0003] The clamping mechanism of existing automobile leaf spring multi-drill numerical control drilling machine is exquisite and solid, it is usually composed of multiple adjustable clamp assemblies, bolts and nuts, these components are arranged around work area, can adapt to automobile leaf spring of different specifications and sizes, clamp body is generally made of high-strength alloy material, has excellent rigidity and wear resistance, ensures not to be deformed in long-time, high-frequency operation, clamp surface is often covered with anti-skid texture and rubber pad to enhance the friction force with leaf spring, at the same time, equipped with fine adjusting screw and nut, through manual or electric mode, the accurate fine adjustment of clamp position, clamping force can be realized, ensure that leaf spring is stably fixed in ideal position, but bolt nut loosening will occur under long-time use, produce abrasion, lead to clamping effect reduces. UTILITY MODEL CONTENTS
[0004] In order to make up for the above shortcomings, the utility model provides a kind of automobile leaf spring multi-drill numerical control drilling machine, aims at improving the problem that bolt nut loosening will occur under long-time use in prior art, produce abrasion, lead to clamping effect reduces.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-drill CNC drilling machine for automotive leaf springs, comprising a machine tool, a base plate fixedly connected to the top of the machine tool near the center, multiple side baffles fixedly connected to the left and right sides of the base plate, a movable clamp slidably connected between adjacent side baffles, the bottom of the movable clamp slidably connected to the top of the base plate, a threaded rod fixedly connected to the front side of the movable clamp near the center, a threaded sleeve threadedly connected to the outer wall of the threaded rod, multiple connecting blocks fixedly connected to the front side of the outer wall of the threaded sleeve, a collar fixedly connected to the front side of the connecting blocks, a hand crank fixedly connected to the front side of the collar, a fixed ring rotatably connected to the outer wall of the threaded sleeve, and an adjustment mechanism provided on the top right side of the machine tool, the adjustment mechanism being used for fine-tuning left and right.
[0006] As a further description of the above technical solution:
[0007] The adjustment mechanism includes a threaded rod, a hand crank fixedly connected to the rear end of the threaded rod, a drilling platform threadedly connected to the front side of the threaded rod, and multiple threaded holes 1 opened at the bottom of the drilling platform. The inner wall of each threaded hole 1 is slidably connected to the outer wall of the threaded rod 1. A support ring 1 is fixedly connected to the front side of the outer wall of the threaded rod 1, and the bottom of the support ring 1 is fixedly connected to the top right side of the machine tool. A support ring 2 is fixedly connected to the rear side of the outer wall of the threaded rod 1, and the bottom of the support ring 2 is fixedly connected to the top of the machine tool.
[0008] As a further description of the above technical solution:
[0009] A threaded ring is fixedly connected to the outer wall of the second threaded rod near the middle, and the bottom of the threaded ring is fixedly connected to the top front side of the machine tool.
[0010] As a further description of the above technical solution:
[0011] A protective sleeve is fixedly connected to the front side of the threaded rod 2, and a fixing clamp is fixedly connected to the top rear end of the machine tool.
[0012] As a further description of the above technical solution:
[0013] Multiple drill bits are fixedly connected to the top of the drilling platform, and multiple side baffles are fixedly connected to the left and right sides of the top of the machine tool.
[0014] As a further description of the above technical solution:
[0015] A rear baffle is fixedly connected to the top rear end of the machine tool near the edge, and a fixing block is fixedly connected to the top left side of the machine tool.
[0016] As a further description of the above technical solution:
[0017] The top of the machine tool is fixedly connected to a storage platform, and the bottom of the machine tool is fixedly connected to multiple table legs around its perimeter.
[0018] As a further description of the above technical solution:
[0019] The threaded ring has a threaded hole two inside, and the inner wall of the threaded hole two is threadedly connected to the outer wall of the threaded rod two.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, rotating the hand handle will cause the collar to rotate, which in turn will cause the connecting block to rotate, and then the threaded sleeve to rotate. Because the threaded sleeve is fixed to the machine tool by the fixed ring, the connecting block will rotate but will not move. At this time, the threaded sleeve will push the threaded rod two forward, and the threaded rod two will push the moving clamp to move inward on the base plate until it cooperates with the fixed clamp to hold the object to be drilled, thus achieving the effect of clamping it during the drilling process.
[0022] 2. In this utility model, rotating the hand crank will cause the threaded rod to rotate. At the same time, the support ring 1 and the support ring 2 will lock the position of the threaded rod, so that the threaded rod can only rotate. At this time, the threaded hole 1 in the drilling table will rotate on the surface of the threaded rod. The drilling table will then rotate left and right until the drill bit moves to the designated position, thus achieving the effect of fine adjustment of the position of the drilling table and the drill bit. Attached Figure Description
[0023] Figure 1 This is a front perspective view of a multi-drill CNC drilling machine for automotive leaf springs proposed in this utility model;
[0024] Figure 2 This is a top view of a multi-drill CNC drilling machine for automotive leaf springs proposed in this utility model;
[0025] Figure 3 This is a partial structural exploded view of the threaded rod of a multi-drill CNC drilling machine for automotive leaf springs proposed in this utility model;
[0026] Figure 4 This is a partial structural exploded view of the moving fixture of a multi-drill CNC drilling machine for automotive leaf springs proposed in this utility model;
[0027] Figure 5 This is a partial structural disassembly diagram of the threaded sleeve of a multi-drill CNC drilling machine for automotive leaf springs proposed in this utility model.
[0028] Legend:
[0029] 1. Machine tool; 2. Adjustment mechanism; 201. Threaded rod one; 202. Hand crank; 203. Drilling table; 204. Threaded hole one; 205. Support ring one; 206. Support ring two; 3. Base plate; 4. Side baffle one; 5. Moving fixture; 6. Threaded rod two; 7. Threaded sleeve; 8. Connecting block; 9. Collar; 10. Hand crank; 11. Fixing ring; 12. Threaded ring; 13. Protective sleeve; 14. Fixing fixture; 15. Drill bit; 16. Side baffle two; 17. Rear baffle; 18. Fixing block; 19. Storage platform; 20. Table leg; 21. Threaded hole two. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 This utility model provides an embodiment of a multi-drill CNC drilling machine for automotive leaf springs, comprising a machine tool 1. A base plate 3 is fixedly connected to the top of the machine tool 1 near the middle, making the whole more stable. Multiple side baffles 4 are fixedly connected to the left and right sides of the base plate 3. A movable clamp 5 is slidably connected between adjacent side baffles 4, enabling clamping. The bottom of the movable clamp 5 is slidably connected to the top of the base plate 3. A threaded rod 6 is fixedly connected to the front side of the movable clamp 5 near the middle, enabling movement. A threaded sleeve 7 is threadedly connected to the front side of the outer wall of the threaded rod 6. Multiple connecting blocks 8 are fixedly connected to the front side of the outer wall of the threaded sleeve 7, serving as a connecting and rotating mechanism. A collar 9 is fixedly connected to the front side of the connecting block 8. A hand handle 10 is fixedly connected to the front side of the collar 9, enabling rotation via the hand handle 10. A fixing ring 11 is rotatably connected to the outer wall of the threaded sleeve 7, providing a fixed support effect. An adjustment mechanism 2 is provided on the top right side of the machine tool 1, which is used for fine-tuning left and right.
[0032] Specifically, a base plate 3 is fixedly connected to the top of the machine tool 1 near the center. Multiple side baffles 4 are fixedly connected to the left and right sides of the base plate 3. A movable clamp 5 is slidably connected between these side baffles 4, allowing the movable clamp 5 to slide on the top of the base plate 3. The bottom of the movable clamp 5 is slidably connected to the top of the base plate 3 to ensure the flexible movement of the movable clamp 5. A threaded rod 6 is fixedly connected to the front side of the movable clamp 5 near the center. A threaded sleeve 7 is threadedly connected to the front side of the outer wall of the threaded rod 6. Multiple connecting blocks 8 are fixedly connected to the front side of the outer wall of the threaded sleeve 7. A collar 9 is fixedly connected to the front side of these connecting blocks 8. A hand crank 10 is fixedly connected to the front side of the collar 9, allowing the rotation of the threaded sleeve 7 to be controlled by the hand crank 10. To ensure the stability of the threaded sleeve 7, a retaining ring 11 is rotatably connected to its outer wall to prevent the threaded sleeve 7 from shifting during rotation.
[0033] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 The adjustment mechanism 2 includes a threaded rod 201, a hand crank 202 fixedly connected to the rear end of the threaded rod 201, and a drilling table 203 threadedly connected to the front side of the threaded rod 201 to make the whole more stable. The bottom of the drilling table 203 is provided with multiple threaded holes 204. The inner wall of the threaded holes 204 is slidably connected to the outer wall of the threaded rod 201 to make the overall connection more stable. A support ring 205 is fixedly connected to the front side of the outer wall of the threaded rod 201. The bottom of the support ring 205 is fixedly connected to the top right side of the machine tool 1 to provide support. A support ring 206 is fixedly connected to the rear side of the outer wall of the threaded rod 201. The bottom of the support ring 206 is fixedly connected to the top of the machine tool 1 to make the overall connection more stable.
[0034] Specifically, the adjusting mechanism 2 includes a threaded rod 201, the rear end of which is fixedly connected to a hand crank 202, allowing manual adjustment of the position of the threaded rod 201 via the hand crank 202. The front side of the threaded rod 201 is threadedly connected to a drilling table 203, a key component for supporting the workpiece and performing drilling operations. To ensure the stability and accuracy of the drilling table 203, multiple threaded holes 204 are evenly distributed on its bottom. The inner walls of these threaded holes 204 are connected to the threaded rod... A sliding connection can be achieved between the outer walls of the threaded rod 201, allowing the drilling table 203 to move precisely back and forth on the threaded rod 201. In addition, a support ring 205 is fixedly connected to the front side of the outer wall of the threaded rod 201. The bottom of the support ring 205 is firmly fixedly connected to the top right side of the machine tool 1 to provide additional support and stability. A support ring 206 is also fixedly connected to the rear side of the outer wall of the threaded rod 201, and its bottom is fixedly connected to the top of the machine tool 1, further ensuring the stability and durability of the entire adjustment mechanism 2.
[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 4 A threaded ring 12 is fixedly connected to the outer wall of the threaded rod 6 near the middle. The bottom of the threaded ring 12 is fixedly connected to the front top of the machine tool 1, making the overall connection more stable. A protective sleeve 13 is fixedly connected to the front side of the threaded rod 6. A fixing clamp 14 is fixedly connected to the rear top of the machine tool 1, which plays a role in fixing and supporting. Multiple drill bits 15 are fixedly connected to the top of the drilling table 203. Multiple side baffles 16 are fixedly connected to the left and right sides of the top of the machine tool 1, which play a role in shielding.
[0036] Specifically, a threaded ring 12 is fixedly connected to the outer wall of the threaded rod 6 near its middle part. The bottom part of this threaded ring 12 is firmly fixed to the front part of the top of the machine tool 1. In addition, a protective sleeve 13 is fixedly connected to the front part of the threaded rod 6. The function of this protective sleeve 13 is to protect the threaded rod 6 from damage during operation. At the rear end of the top of the machine tool 1, a fixing fixture 14 is also fixedly connected. The main function of this fixing fixture 14 is to fix the workpiece for precise machining operations. On the top of the drilling table 203, multiple drill bits 15 are evenly fixedly connected. These drill bits 15 are used to drill holes in the workpiece. Finally, multiple side baffles 16 are fixedly connected to the left and right sides of the top of the machine tool 1. The function of these side baffles 16 is to prevent accidental movement of the workpiece and tools during machining, thereby ensuring the safety and accuracy of machining.
[0037] Please see the appendix Figure 1 Appendix Figure 2and attached Figure 3 A rear baffle 17 is fixedly connected to the top rear end of the machine tool 1 near the edge. A fixing block 18 is fixedly connected to the top left side of the machine tool 1, making the overall connection more stable. A storage platform 19 is fixedly connected to the top of the machine tool 1. Multiple table legs 20 are fixedly connected to the bottom of the machine tool 1 around the perimeter, making the overall connection more stable. A threaded hole 21 is opened inside the threaded ring 12. The inner wall of the threaded hole 21 is threadedly connected to the outer wall of the threaded rod 6, making the overall connection more stable.
[0038] Specifically, near the edge of the top rear end of machine tool 1, a fixing device is used to tightly connect it to the rear baffle 17, ensuring the stability of machine tool 1 during operation. In addition, a sturdy fixing block 18 is also fixedly connected to the top left side of machine tool 1, which not only enhances the overall structural strength of machine tool 1, but also provides additional support points for certain operations of machine tool 1. In order to facilitate the operator to place tools and parts, a storage platform 19 is designed on the top of machine tool 1. Its surface is flat and can safely store various items. It is placed at the bottom of machine tool 1. In order to provide sufficient support and keep machine tool 1 level, multiple table legs 20 are fixedly connected around the perimeter. The even distribution of these table legs 20 ensures the stability of machine tool 1 under different working conditions. In the threaded ring 12 part of machine tool 1, a threaded hole 21 is specially opened inside. The inner wall of this threaded hole 21 is connected to the outer wall of the threaded rod 6 by threads, ensuring the tightness of the connection and facilitating disassembly and maintenance, which greatly improves the efficiency and life of machine tool 1.
[0039] Working principle: When clamping is required, turn the hand handle 10. The hand handle 10 will drive the collar 9 to rotate, and the collar 9 will drive the connecting block 8 to rotate. Then the connecting block 8 will drive the threaded sleeve 7 to rotate. Because the threaded sleeve 7 is fixed to the machine tool 1 by the fixing ring 11, the connecting block 8 will rotate but will not move. At this time, the threaded sleeve 7 will push the threaded rod 6 forward. At the same time, the threaded rod 6 will push the moving clamp 5 to move inward on the base plate 3 until it cooperates with the fixed clamp 14 to clamp the object to be drilled. At this time, the drilling operation can be performed. After drilling is completed, turn the hand handle 10 in the opposite direction. The hand handle 10 will drive the threaded sleeve 7 to rotate in the opposite direction and then turn the threaded rod 6 out, thus achieving the effect of clamping it during the drilling process.
[0040] When the drill bit 15 is not in the correct position, rotate the hand crank 202. The hand crank 202 will drive the threaded rod 201 to rotate. At the same time, the support ring 205 and the support ring 206 will hold the threaded rod 201 in place, allowing it to rotate. The threaded hole 204 in the drilling table 203 will then rotate on the surface of the threaded rod 201. The drilling table 203 will then rotate left and right until the drill bit 15 moves to the designated position, thus achieving the effect of fine-tuning the position of the drilling table 203 and the drill bit 15.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A multi-drill CNC drilling machine for automotive leaf springs, comprising a machine tool (1), characterized in that: A base plate (3) is fixedly connected to the top of the machine tool (1) near the middle. Multiple side baffles (4) are fixedly connected to the left and right sides of the base plate (3). A movable clamp (5) is slidably connected between adjacent side baffles (4). The bottom of the movable clamp (5) is slidably connected to the top of the base plate (3). A threaded rod (6) is fixedly connected to the front side of the movable clamp (5) near the middle. A threaded sleeve (7) is threadedly connected to the front side of the outer wall of the threaded rod (6). Multiple connecting blocks (8) are fixedly connected to the front side of the outer wall of the threaded sleeve (7). A collar (9) is fixedly connected to the front side of the connecting block (8). A hand crank (10) is fixedly connected to the front side of the collar (9). A fixed ring (11) is rotatably connected to the outer wall of the threaded sleeve (7). An adjustment mechanism (2) is provided on the top right side of the machine tool (1). The adjustment mechanism (2) is used for fine adjustment to the left and right.
2. The multi-drill CNC drilling machine for automotive leaf springs according to claim 1, characterized in that: The adjustment mechanism (2) includes a threaded rod (201), a hand crank (202) is fixedly connected to the rear end of the threaded rod (201), a drilling platform (203) is threadedly connected to the front side of the threaded rod (201), and a plurality of threaded holes (204) are opened at the bottom of the drilling platform (203). The inner wall of the threaded hole (204) is slidably connected to the outer wall of the threaded rod (201). A support ring (205) is fixedly connected to the front side of the outer wall of the threaded rod (201). The bottom of the support ring (205) is fixedly connected to the top right side of the machine tool (1). A support ring (206) is fixedly connected to the rear side of the outer wall of the threaded rod (201). The bottom of the support ring (206) is fixedly connected to the top of the machine tool (1).
3. The multi-drill CNC drilling machine for automotive leaf springs according to claim 1, characterized in that: A threaded ring (12) is fixedly connected to the outer wall of the threaded rod (6) near the middle, and the bottom of the threaded ring (12) is fixedly connected to the top front side of the machine tool (1).
4. The multi-drill CNC drilling machine for automotive leaf springs according to claim 1, characterized in that: The front side of the threaded rod (6) is fixedly connected to a protective sleeve (13), and the top rear end of the machine tool (1) is fixedly connected to a fixing clamp (14).
5. A multi-drill CNC drilling machine for automotive leaf springs according to claim 2, characterized in that: The top of the drilling platform (203) is fixedly connected with multiple drill bits (15), and the top left and right sides of the machine tool (1) are fixedly connected with multiple side baffles (16).
6. The multi-drill CNC drilling machine for automotive leaf springs according to claim 1, characterized in that: A rear baffle (17) is fixedly connected to the top rear end of the machine tool (1) near the edge, and a fixing block (18) is fixedly connected to the top left side of the machine tool (1).
7. A multi-drill CNC drilling machine for automotive leaf springs according to claim 1, characterized in that: The top of the machine tool (1) is fixedly connected to a storage platform (19), and the bottom of the machine tool (1) is fixedly connected to multiple table legs (20) around its perimeter.
8. A multi-drill CNC drilling machine for automotive leaf springs according to claim 3, characterized in that: The threaded ring (12) has a threaded hole (21) inside, and the inner wall of the threaded hole (21) is threadedly connected to the outer wall of the threaded rod (6).