Length adjusting device and method for numerical control tool
By designing an automated CNC tool length adjustment device, using technical means such as adjustment links, sliders and telescopic hydraulic cylinders, the problems of poor adjustment accuracy and insufficient stability in the existing technology are solved, and the rapid and accurate CNC tool length is achieved. and automatic adjustment.
Patent Information
- Application Number
- CN202510058586.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-02-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing CNC tool length adjustment devices rely on manual or mechanical manual adjustment, resulting in poor adjustment accuracy, prone to artificial errors, poor stability of tool length, and affecting processing quality and efficiency.
A length adjustment device including a CNC frame and moving parts is designed. By adjusting the coordination of the connecting rod and the slide, the fixing device is driven to clamp and length adjustment of the tool, and the telescopic hydraulic cylinder and driving worm gear are used to achieve automatic adjustment. .
It realizes fast, accurate and automatic adjustment of CNC tool length, reduces manual investment, improves tool length stability and machining accuracy, and reduces machining error and time consumption.
Smart Images
Figure CN119457909A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of numerical control tools, and in particular to a length adjustment device and an adjustment method for a numerical control tool. Background Art
[0002] CNC tools are tools used for cutting processing in mechanical manufacturing, also known as cutting tools. In a broad sense, cutting tools include both cutting tools and grinding tools. At the same time, "CNC tools" include accessories such as tool rods and tool handles in addition to cutting blades.
[0003] In CNC machining, precise adjustment of tool length is the key to ensuring machining accuracy and tool life. Existing tool length adjustment devices mostly rely on manual adjustment or mechanical manual adjustment. This method not only has poor adjustment accuracy, but is also prone to human errors, affecting machining quality. Especially in the case of long-term machining or multiple tool changes, the tool length has poor stability and is prone to errors, resulting in machining errors or reduced machining efficiency. The steps for adjusting the length are relatively cumbersome, which consumes a lot of time during the length adjustment process, resulting in inconvenience in the use of CNC tools, greatly reducing the practicality of CNC tools. Summary of the invention
[0004] Based on the fact that most existing tool length adjustment devices rely on manual adjustment or mechanical manual adjustment, have poor adjustment accuracy and are prone to human errors, poor tool length stability, resulting in processing errors or reduced processing efficiency, and cumbersome length adjustment steps, which consumes a lot of time during the length adjustment process, resulting in the problem of inconvenience in using the CNC tool, which greatly reduces the practicality of the CNC tool. The present invention proposes a length adjustment device and an adjustment method for a CNC tool.
[0005] The invention provides a length adjustment device for a numerically controlled tool, comprising a numerically controlled frame and a moving component, wherein the moving component is arranged on the inner wall of the numerically controlled frame, and an adjustment device and a fixing device are arranged on the upper surface of the moving component.
[0006] The adjusting device is located on the upper surface of the movable component and adjusts the position of the fixing device. The adjusting device includes an adjusting connecting rod and a sliding block. The deflection of the adjusting connecting rod drives the sliding block to move and adjust the position of the tool on the fixing device.
[0007] The fixing device is located on the outer surface of the adjusting device and clamps the CNC tool. The fixing device includes a clamping mechanism, a locking mechanism and a driving mechanism. The clamping mechanism includes a clamping block and a clamping rotating rod. The movement of the clamping rotating rod drives the relative movement of the two clamping blocks to clamp the CNC tool. The locking mechanism includes a locking block. The relative movement of the locking block limits the clamping block. The driving mechanism includes a driving worm gear. The rotation of the driving worm gear can drive the clamping rotating rod to move.
[0008] Preferably, the adjusting device also includes an adjusting shell, the inner wall of which is fixedly installed with a limiting slot plate, the lower surface of the limiting slot plate is rotatably connected to a rotating plate via a bearing, one end of the rotating plate is hinged to one end of the adjusting connecting rod via a pin, the outer surface of the slider is slidably inserted into the inner wall of the groove of the limiting slot plate, and the other end of the adjusting connecting rod is hinged to the outer surface of the slider via a pin.
[0009] Through the above technical solution, the slider can be limited by the limiting groove plate so that the slider can only move horizontally. The movement of the slider can drive the clamped tool to move and adjust the position of the tool close to the processing tool. The slider can be driven to move by adjusting the deflection of the connecting rod.
[0010] Preferably, a telescopic hydraulic cylinder is fixedly mounted on the outer surface of one of the sliders via a connecting frame, one end of the telescopic rod of the telescopic hydraulic cylinder is fixedly mounted on the outer surface of the other slider, and the outer surface of the telescopic hydraulic cylinder is slidably plugged into the inner wall of the adjusting shell.
[0011] Through the above technical scheme, the two sliders can be driven to move relative to or oppositely by the push of the telescopic hydraulic cylinder. The movement of the slider drives the adjusting link hinged thereto to deflect, and then drives the rotating plate to rotate, and then drives the other two adjusting links to deflect. The other two sliders are adjusted in the same way, which can automatically complete the compensation of the tool length without disassembling the tool to adjust the tool.
[0012] Preferably, the clamping mechanism also includes a clamping shell, which is fixedly mounted on the upper surface of the adjusting shell, a movable shell is slidably inserted into the inner wall of the clamping shell, the lower surface of the movable shell is fixedly mounted on the upper surface of the slider, a limiting guide rail is fixedly mounted on the inner wall of the movable shell, and the outer surface of the limiting guide rail is slidably inserted into the outer surface of the clamping block.
[0013] Through the above technical solution, the position of the CNC tool in the moving shell can be adjusted by sliding the moving shell in the clamping shell, and the limiting guide rail is slidably connected with the clamping block to limit the clamping block.
[0014] Preferably, a deflection link is hinged to the outer surface of the clamping block via a pin, a movable sleeve is hinged to one end of the deflection link via a pin, and the outer surface of the movable sleeve is rotatably connected to the outer surface of the clamping rotating rod via a bearing.
[0015] Through the above technical scheme, the deflection of the deflection connecting rod can pull the clamping block on the limit guide rail, so that the clamping block can move relatively or oppositely to complete the clamping work of the CNC tool. The deflection of the clamping rotating rod can drive the movable sleeve to move, thereby driving the deflection of the deflection connecting rod.
[0016] Preferably, a positioning plate is slidably inserted into the inner wall of the movable housing, a positioning sleeve is slidably sleeved on the outer surface of the clamping rotating rod, and the outer surface of the positioning sleeve is threadedly connected to the inner wall of the positioning plate.
[0017] Through the above technical solution, the depth of the CNC tool inserted into the movable housing can be limited by moving the positioning plate, thereby facilitating accurate positioning of the CNC tool and adjusting the length of the CNC tool.
[0018] Preferably, the locking mechanism includes a locking screw, which is rotatably connected to the inner wall of the movable shell through a bearing, and a limit rod is fixedly installed on the inner wall of the movable shell, both ends of the locking screw are threadedly connected to the inner wall of the locking block, and the locking block is slidably inserted into the outer surface of the limit rod, a support frame is fixedly installed at one end of the movable shell, and a locking motor is fixedly installed on the outer surface of the support frame, and one end of the output shaft of the locking motor drives the rotation of the locking screw through the cooperation of a synchronous belt and a synchronous wheel.
[0019] Through the above technical scheme, the locking block can be driven to move relative to each other through the rotation of the locking screw, thereby completing the limitation of the clamping block. The clamping block cannot move after clamping the CNC tool. The threads at both ends of the locking screw are symmetrically distributed, thereby being able to drive the locking block to move relative or oppositely. The locking motor drives the movement of the locking block through the cooperation of the synchronous belt and the synchronous wheel, thereby automatically completing the limitation of the clamping block.
[0020] Preferably, the driving mechanism also includes a driving motor, which is fixedly mounted on the outer surface of the support frame, and the outer surface of the support frame is rotatably connected to a worm via a bearing, one end of the output shaft of the driving motor is fixedly mounted on one end of the worm, and the worm is meshed with the driving worm wheel, and the driving worm wheel is rotatably connected to the inner wall of the movable housing via a bearing seat, one end of the driving worm wheel is rotatably connected to one end of the positioning sleeve via a bearing, and the inner wall of the driving worm wheel is threadedly connected to the outer surface of the clamping rotating rod.
[0021] Through the above technical solution, the driving motor is started to drive the worm to rotate, and the worm drives the driving worm wheel to rotate, which can drive the limited clamping rotating rod to move and drive the released clamping rotating rod to rotate.
[0022] Preferably, a control shell is fixedly installed on the inner wall of the movable shell, and a plug-in electromagnet is slidably inserted into the inner wall of the control shell, one end of the plug-in electromagnet is slidably inserted into the inner wall of the clamping rotating rod to be magnetically connected, and a return spring is fixedly installed on the outer surface of the plug-in electromagnet, and one end of the return spring is fixedly installed on the inner wall of the control shell.
[0023] Through the above technical scheme, after the plug-in electromagnet is energized, it can be plugged into the clamping rotating rod to limit the clamping rotating rod, so that the rotation of the driving worm gear drives the clamping rotating rod to move. After pulling the movable sleeve to move, the clamping block can clamp the CNC tool.
[0024] The present invention provides a method for adjusting the length of a numerically controlled tool, comprising the following steps: S1: When the CNC tool needs to be fixed, the CNC tool is inserted between the two clamping blocks in the mobile housing. When the clamping length of the CNC tool needs to be limited, the driving motor is controlled to start, and the driving motor drives the worm to rotate. The worm drives the driving worm wheel meshing with it to rotate, and then drives the clamping rotating rod threadedly connected with it to rotate. The clamping rotating rod drives the positioning sleeve slidably sleeved with it to rotate. After the positioning sleeve drives the positioning plate to move, the position of the positioning plate is adjusted, so that the position of the CNC tool inserted into the mobile housing can be limited, and the horizontal movement of the CNC tool is limited to prevent the CNC tool from moving due to force during processing, thereby affecting the processing accuracy.
[0025] S2: After the plug-in electromagnet in the control housing is energized, it can be plugged into the inner wall of the groove of the clamping rotating rod to limit the clamping rotating rod, and the rotation of the driving worm gear drives the clamping rotating rod to move. The movement of the clamping rotating rod pulls the movable sleeve to move, and after driving the deflection connecting rod to deflect, the clamping block is pulled to move relatively on the limit guide rail. After the clamping of the CNC tool is completed, the CNC tool is fixed in the movable housing.
[0026] S3: When the length of the CNC tool needs to be adjusted, the slider is pushed to move by the telescopic hydraulic cylinder, and the slider drives the adjustment link hinged to it to deflect, which drives the rotating plate to deflect, and the rotating plate drives the remaining adjustment links to deflect, which drives the slider to move in the limit slot plate, and the slider drives the moving housing to move in the clamping housing, so that the length of the tool can be adjusted.
[0027] The beneficial effects of the present invention are: 1. By setting an adjustment device, the length of the CNC tool can be adjusted to reduce labor input. The push of the telescopic hydraulic cylinder can drive the two slide blocks to move relative or oppositely. The movement of the slide block drives the adjustment link hinged thereto to deflect and then drives the rotating plate to rotate, which drives the other two adjustment links to deflect. The other two slide blocks are adjusted in the same way, which can automatically complete the compensation of the tool length. There is no need to disassemble the tool to adjust the tool, so that the length of the CNC tool can be quickly adjusted, which solves the problem that most of the existing tool length adjustment devices rely on manual adjustment or mechanical manual adjustment, have poor adjustment accuracy, and are prone to human errors. The stability of the tool length is poor, resulting in processing errors or reduced processing efficiency. The steps for adjusting the length are relatively cumbersome, which greatly reduces the practicality of the CNC tool.
[0028] 2. By setting a fixing device, a variety of CNC tools can be clamped automatically without manual clamping. By deflecting the deflection connecting rod, the clamping block on the limit guide rail is pulled so that the clamping block can move relatively or oppositely to complete the clamping of the CNC tool. By moving the positioning plate, the depth of the CNC tool inserted into the mobile housing can be limited, so that the position of the CNC tool can be accurately positioned and the length of the CNC tool can be adjusted. At the same time, the positioning plate can limit the horizontal movement of the CNC tool to prevent the CNC tool from being offset when in use, affecting the processing accuracy. The relative movement of the locking block can limit the clamping block to prevent the clamping block from moving when the CNC tool is in use. This solves the problem that most of the existing tool length adjustment devices rely on manual adjustment or mechanical manual adjustment, have poor adjustment accuracy, and are prone to human errors. The tool length is poorly stable, resulting in processing errors or reduced processing efficiency. The length adjustment steps are relatively cumbersome, which greatly reduces the practicality of the CNC tool.
[0029] 3. By setting up a driving mechanism, the rotation of the driving worm wheel can drive the clamping rotating rod to move or rotate, thereby completing the adjustment of the clamping block or the positioning plate and reducing the input of the driving source. After the clamping rotating rod is limited, the rotation of the driving worm wheel can drive the clamping rotating rod to move, thereby driving the clamping block to move relative or oppositely. After the clamping rotating rod is released from the limit, the rotation of the driving worm wheel can drive the positioning sleeve on the positioning plate to rotate, thereby driving the positioning plate to move. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 A schematic diagram of a length adjustment device for a numerically controlled tool proposed by the present invention; Figure 2 A three-dimensional diagram of an adjusting housing structure of a length adjusting device for a numerically controlled tool proposed by the present invention; Figure 3 A three-dimensional diagram of a movable housing structure of a length adjustment device for a numerically controlled tool proposed by the present invention; Figure 4 A three-dimensional diagram of a limit slot plate structure of a length adjustment device for a numerical control tool proposed by the present invention; Figure 5 A three-dimensional diagram of a rotating plate structure of a length adjustment device for a numerically controlled tool proposed by the present invention; Figure 6 A three-dimensional diagram of a limit guide rail structure of a length adjustment device for a numerically controlled tool proposed by the present invention; Figure 7 A three-dimensional diagram of a clamping block structure of a length adjustment device for a numerically controlled tool proposed by the present invention; Figure 8 A three-dimensional diagram of a positioning sleeve structure of a length adjustment device for a numerically controlled tool proposed by the present invention; Fig. 9 A three-dimensional diagram of a worm structure of a length adjustment device for a numerically controlled tool proposed by the present invention; Fig.10 A three-dimensional diagram of the plug-in electromagnet structure of a length adjustment device for a numerically controlled tool proposed by the present invention.
[0031] In the figure: 1. CNC frame; 11. Moving parts; 2. Adjusting shell; 21. Limiting slot plate; 22. Rotating plate; 23. Adjusting connecting rod; 24. Sliding block; 25. Telescopic hydraulic cylinder; 3. Clamping shell; 31. Moving shell; 32. Limiting guide rail; 33. Clamping block; 34. Deflection connecting rod; 35. Moving sleeve; 36. Clamping rotating rod; 37. Positioning plate; 38. Positioning sleeve; 4. Locking screw; 41. Limiting rod; 42. Locking block; 43. Support frame; 44. Locking motor; 5. Driving motor; 51. Worm; 52. Driving worm gear; 6. Control shell; 61. Plug-in electromagnet; 62. Reset spring. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0033] Reference Figure 1-Figure 10 A length adjustment device for a numerically controlled tool comprises a numerically controlled frame 1 and a moving component 11. The moving component 11 is arranged on the inner wall of the numerically controlled frame 1, and an adjusting device and a fixing device are arranged on the upper surface of the moving component 11.
[0034] like Figure 2-Figure 5As shown, in order to quickly adjust the position of the CNC tool, thereby being able to adjust the length of the CNC tool, the adjusting device is located on the upper surface of the movable component 11, and adjusts the position of the fixing device. The adjusting device includes an adjusting connecting rod 23 and a slider 24. The deflection of the adjusting connecting rod 23 drives the slider 24 to move and adjust the position of the tool on the fixing device.
[0035] Specifically, in order to automatically drive the slider 24 to move, the adjusting device also includes an adjusting shell 2, and a limiting slot plate 21 is fixedly installed on the inner wall of the adjusting shell 2. The lower surface of the limiting slot plate 21 is rotatably connected to a rotating plate 22 through a bearing. One end of the rotating plate 22 is hinged to one end of the adjusting connecting rod 23 through a pin shaft. The outer surface of the slider 24 is slidably inserted into the inner wall of the groove of the limiting slot plate 21, and the other end of the adjusting connecting rod 23 is hinged to the outer surface of the slider 24 through a pin shaft.
[0036] Specifically, in order to drive the adjustment link 23 to deflect, a telescopic hydraulic cylinder 25 is fixedly installed on the outer surface of a slider 24 through a connecting frame, and one end of the telescopic rod of the telescopic hydraulic cylinder 25 is fixedly installed on the outer surface of the other slider 24. The outer surface of the telescopic hydraulic cylinder 25 is slidably plugged into the inner wall of the adjustment housing 2. Through the extension and retraction of the telescopic hydraulic cylinder 25, the slider 24 fixed thereto can be driven to move relative or oppositely, so that the other two sliders 24 can be driven to move synchronously through the adjustment link 23.
[0037] like Figure 6-Figure 10 As shown, in order to automatically clamp the CNC tool, the fixing device is located on the outer surface of the adjusting device and clamps the CNC tool. The fixing device includes a clamping mechanism, a locking mechanism and a driving mechanism. The clamping mechanism includes a clamping block 33 and a clamping rotating rod 36. The movement of the clamping rotating rod 36 drives the relative movement of the two clamping blocks 33 to clamp the CNC tool. The locking mechanism includes a locking block 42. The relative movement of the locking block 42 limits the clamping block 33. The driving mechanism includes a driving worm gear 52. The rotation of the driving worm gear 52 can drive the clamping rotating rod 36 to move.
[0038] Specifically, in order to drive the clamping block 33 to move relative or oppositely, the clamping mechanism also includes a clamping shell 3, which is fixedly mounted on the upper surface of the adjusting shell 2, and a movable shell 31 is slidably inserted into the inner wall of the clamping shell 3, and the lower surface of the movable shell 31 is fixedly mounted on the upper surface of the slider 24, and a limiting guide rail 32 is fixedly mounted on the inner wall of the movable shell 31, and the outer surface of the limiting guide rail 32 is slidably inserted into the outer surface of the clamping block 33, and a tooth groove can be provided on the outer surface of the clamping block 33 that contacts the CNC tool to increase friction.
[0039] Specifically, in order to pull the clamping block 33 to move, the outer surface of the clamping block 33 is hinged with a deflection link 34 through a pin shaft, one end of the deflection link 34 is hinged with a moving sleeve 35 through a pin shaft, and the outer surface of the moving sleeve 35 is rotatably connected to the outer surface of the clamping rotating rod 36 through a bearing.
[0040] Specifically, in order to position the CNC tool, a positioning plate 37 is slidably inserted into the inner wall of the movable housing 31 , a positioning sleeve 38 is slidably sleeved on the outer surface of the clamping rotating rod 36 , and the outer surface of the positioning sleeve 38 is threadedly connected to the inner wall of the positioning plate 37 .
[0041] Specifically, in order to limit the clamping block 33, the locking mechanism includes a locking screw 4, which is rotatably connected to the inner wall of the mobile housing 31 through a bearing, and a limiting rod 41 is fixedly installed on the inner wall of the mobile housing 31. Both ends of the locking screw 4 are threadedly connected to the inner wall of the locking block 42, and the locking block 42 is slidably inserted on the outer surface of the limiting rod 41. A support frame 43 is fixedly installed at one end of the mobile housing 31, and a locking motor 44 is fixedly installed on the outer surface of the support frame 43. The output shaft of the locking motor 44 One end drives the locking screw 4 to rotate through the cooperation of the synchronous belt and the synchronous wheel; through the rotation of the locking screw 4, the locking block 42 can be driven to move relatively, thereby completing the limitation of the clamping block 33. The clamping block 33 cannot move after clamping the CNC tool. The threads at both ends of the locking screw 4 are symmetrically distributed, thereby being able to drive the locking block 42 to move relatively or oppositely. The locking motor 44 drives the movement of the locking block 42 through the cooperation of the synchronous belt and the synchronous wheel, thereby automatically completing the limitation of the clamping block 33.
[0042] Specifically, in order to drive the clamping block 33 and the positioning plate 37 to move, the driving mechanism also includes a driving motor 5, which is fixedly mounted on the outer surface of the support frame 43, and the outer surface of the support frame 43 is rotatably connected to a worm 51 through a bearing, one end of the output shaft of the driving motor 5 is fixedly mounted on one end of the worm 51, and the worm 51 is meshed with a driving worm wheel 52, and the driving worm wheel 52 is rotatably connected to the inner wall of the movable housing 31 through a bearing seat, one end of the driving worm wheel 52 is rotatably connected to one end of the positioning sleeve 38 through a bearing, and the inner wall of the driving worm wheel 52 is threadedly connected to the outer surface of the clamping rotating rod 36.
[0043] Specifically, in order to limit the clamping rotating rod 36, a control shell 6 is fixedly installed on the inner wall of the movable shell 31, and an insertion electromagnet 61 is slidably inserted into the inner wall of the control shell 6. One end of the insertion electromagnet 61 is slidably inserted into the inner wall of the clamping rotating rod 36 to be magnetically connected. A return spring 62 is fixedly installed on the outer surface of the insertion electromagnet 61, and one end of the return spring 62 is fixedly installed on the inner wall of the control shell 6.
[0044] like Figure 1-Figure 10As shown, a method for adjusting the length adjustment device of a numerically controlled tool proposed by the present invention comprises the following steps: S1: When the CNC tool needs to be fixed, the CNC tool is inserted between the two clamping blocks 33 in the movable housing 31. When the clamping length of the CNC tool needs to be limited, the driving motor 5 is controlled to start, and the driving motor 5 drives the worm 51 to rotate. After the worm 51 drives the driving worm wheel 52 meshing with it to rotate, it drives the clamping rotating rod 36 threadedly connected with it to rotate. The clamping rotating rod 36 drives the positioning sleeve 38 slidably sleeved with it to rotate. After the positioning sleeve 38 drives the positioning plate 37 to move, the position of the positioning plate 37 is adjusted, so that the position of the CNC tool inserted into the movable housing 31 can be limited, and at the same time, the horizontal movement of the CNC tool is limited to prevent the CNC tool from moving due to force during processing, thereby affecting the processing accuracy.
[0045] S2: After the plug-in electromagnet 61 in the control housing 6 is energized, it can be plugged into the inner wall of the groove of the clamping rotating rod 36 to limit the clamping rotating rod 36, and the rotation of the driving worm gear 52 drives the clamping rotating rod 36 to move. The movement of the clamping rotating rod 36 pulls the movable sleeve 35 to move, and after driving the deflection connecting rod 34 to deflect, the clamping block 33 is pulled to move relatively on the limiting guide rail 32. After completing the clamping of the CNC tool, the CNC tool is fixed in the movable housing 31.
[0046] S3: When the length of the CNC tool needs to be adjusted, the slider 24 is pushed to move by the telescopic hydraulic cylinder 25, and the slider 24 drives the adjustment link 23 hinged thereto to deflect, and then drives the rotating plate 22 to deflect. After the rotating plate 22 drives the remaining adjustment links 23 to deflect, it drives the slider 24 to move in the limit slot plate 21. After the slider 24 drives the moving shell 31 to move in the clamping shell 3, the length of the tool can be adjusted.
[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A length adjustment device for a numerically controlled tool, comprising a numerically controlled frame (1) and a moving part (11), characterized in that: The moving component (11) is arranged on the inner wall of the CNC frame (1), and an adjusting device and a fixing device are arranged on the upper surface of the moving component (11); The adjusting device is located on the upper surface of the movable component (11) and adjusts the position of the fixing device. The adjusting device comprises an adjusting connecting rod (23) and a sliding block (24). The deflection of the adjusting connecting rod (23) drives the sliding block (24) to move and adjust the position of the tool on the fixing device. The fixing device is located on the outer surface of the adjusting device and clamps the CNC tool. The fixing device comprises a clamping mechanism, a locking mechanism and a driving mechanism. The clamping mechanism comprises a clamping block (33) and a clamping rotating rod (36). The movement of the clamping rotating rod (36) drives the two clamping blocks (33) to move relative to each other to clamp the CNC tool. The locking mechanism comprises a locking block (42). The relative movement of the locking block (42) limits the position of the clamping block (33). The driving mechanism comprises a driving worm gear (52). The rotation of the driving worm gear (52) can drive the clamping rotating rod (36) to move.
2. The length adjustment device for a numerically controlled tool according to claim 1, characterized in that: The adjusting device further comprises an adjusting housing (2), the inner wall of which is fixedly mounted a limit slot plate (21), the lower surface of which is rotatably connected to a rotating plate (22) via a bearing, one end of which is hinged to one end of the adjusting connecting rod (23) via a pin, the outer surface of the sliding block (24) is slidably plugged into the inner wall of the groove of the limit slot plate (21), and the other end of the adjusting connecting rod (23) is hinged to the outer surface of the sliding block (24) via a pin.
3. The length adjustment device for a numerically controlled tool according to claim 2, characterized in that: A telescopic hydraulic cylinder (25) is fixedly mounted on the outer surface of one of the sliders (24) via a connecting frame, one end of a telescopic rod of the telescopic hydraulic cylinder (25) is fixedly mounted on the outer surface of the other slider (24), and the outer surface of the telescopic hydraulic cylinder (25) is slidably plugged into the inner wall of the adjustment housing (2).
4. The length adjustment device for a numerically controlled tool according to claim 3, characterized in that: The clamping mechanism further comprises a clamping shell (3), the clamping shell (3) being fixedly mounted on the upper surface of the adjusting shell (2), a movable shell (31) being slidably inserted into the inner wall of the clamping shell (3), the lower surface of the movable shell (31) being fixedly mounted on the upper surface of the sliding block (24), a limiting guide rail (32) being fixedly mounted on the inner wall of the movable shell (31), and the outer surface of the limiting guide rail (32) being slidably inserted into the outer surface of the clamping block (33).
5. The length adjustment device for a numerically controlled tool according to claim 4, characterized in that: The outer surface of the clamping block (33) is hingedly connected to a deflection link (34) via a pin, one end of the deflection link (34) is hingedly connected to a moving sleeve (35) via a pin, and the outer surface of the moving sleeve (35) is rotatably connected to the outer surface of the clamping rotating rod (36) via a bearing.
6. The length adjustment device for a numerically controlled tool according to claim 5, characterized in that: A positioning plate (37) is slidably inserted into the inner wall of the movable housing (31), a positioning sleeve (38) is slidably sleeved on the outer surface of the clamping rotating rod (36), and the outer surface of the positioning sleeve (38) is threadedly connected to the inner wall of the positioning plate (37).
7. The length adjustment device for a numerically controlled tool according to claim 6, characterized in that: The locking mechanism comprises a locking screw (4), the locking screw (4) being rotatably connected to the inner wall of the movable housing (31) via a bearing, a limiting rod (41) being fixedly mounted on the inner wall of the movable housing (31), both ends of the locking screw (4) being threadedly connected to the inner wall of the locking block (42), the locking block (42) being slidably plugged into the outer surface of the limiting rod (41), a support frame (43) being fixedly mounted on one end of the movable housing (31), a locking motor (44) being fixedly mounted on the outer surface of the support frame (43), and one end of an output shaft of the locking motor (44) driving the rotation of the locking screw (4) through the cooperation of a synchronous belt and a synchronous wheel.
8. The length adjustment device for a numerically controlled tool according to claim 7, characterized in that: The driving mechanism further comprises a driving motor (5), wherein the driving motor (5) is fixedly mounted on the outer surface of the support frame (43), the outer surface of the support frame (43) is rotatably connected to a worm (51) via a bearing, one end of an output shaft of the driving motor (5) is fixedly mounted to one end of the worm (51), the worm (51) is meshed with a driving worm wheel (52), the driving worm wheel (52) is rotatably connected to the inner wall of the movable housing (31) via a bearing seat, one end of the driving worm wheel (52) is rotatably connected to one end of the positioning sleeve (38) via a bearing, and the inner wall of the driving worm wheel (52) is threadedly connected to the outer surface of the clamping rotating rod (36).
9. The length adjustment device for a numerically controlled tool according to claim 8, characterized in that: A control housing (6) is fixedly mounted on the inner wall of the movable housing (31); a plug-in electromagnet (61) is slidably plugged into the inner wall of the control housing (6); one end of the plug-in electromagnet (61) is slidably plugged into the inner wall of the clamping rotating rod (36) to form a magnetic connection; a return spring (62) is fixedly mounted on the outer surface of the plug-in electromagnet (61); one end of the return spring (62) is fixedly mounted on the inner wall of the control housing (6).
10. A method for adjusting a length adjustment device of a numerically controlled tool, using the length adjustment device of a numerically controlled tool as claimed in any one of claims 1 to 9, characterized in that: S1: When it is necessary to fix the numerical control tool, the numerical control tool is inserted between the two clamping blocks (33) in the movable housing (31). When it is necessary to limit the clamping length of the numerical control tool, the driving motor (5) is controlled to start, and the driving motor (5) drives the worm (51) to rotate. The worm (51) drives the driving worm wheel (52) meshing therewith to rotate, and then drives the clamping rotating rod (36) threadedly connected thereto to rotate. The clamping rotating rod (36) drives the positioning sleeve (38) slidably sleeved therewith to rotate. After the positioning sleeve (38) drives the positioning plate (37) to move, the position of the positioning plate (37) is adjusted, so that the position of the numerical control tool inserted into the movable housing (31) can be limited, and at the same time, the horizontal movement of the numerical control tool is limited to prevent the numerical control tool from moving due to force during processing, thereby affecting the processing accuracy; S2: After the plug-in electromagnet (61) in the control housing (6) is energized, it can be plugged into the inner wall of the groove of the clamping rotating rod (36) to limit the clamping rotating rod (36), and the rotation of the driving worm gear (52) drives the clamping rotating rod (36) to move, and the movement of the clamping rotating rod (36) pulls the movable sleeve (35) to move, and after the deflection connecting rod (34) is deflected, the clamping block (33) is pulled to move relatively on the limiting guide rail (32), and after the clamping of the CNC tool is completed, the CNC tool is fixed in the movable housing (31); S3: When the length of the CNC tool needs to be adjusted, the slide block (24) is pushed to move by the telescopic hydraulic cylinder (25), and the slide block (24) drives the adjustment link (23) hinged thereto to deflect, and then drives the rotating plate (22) to deflect, and then drives the remaining adjustment links (23) to deflect, and then drives the slide block (24) to move in the limit slot plate (21), and then the slide block (24) drives the movable housing (31) to move in the clamping housing (3), so that the length of the tool can be adjusted.