Positioning structure for numerical control cutter handle production

By introducing a multi-point clamping and tightening structure in CNC toolholder processing, the problem of insufficient stability in the existing technology is solved, and a toolholder processing effect with high precision and strong adaptability is achieved.

CN223326179UActive Publication Date: 2025-09-12JIANGSU SHUANGYANG MASCH TECH CO LTD
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Patent Information

Application Number
CN202422066156.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-26
Publication Date
2025-09-12
Estimated Expiration
2034-08-26

AI Technical Summary

Technical Problem

In the existing CNC toolholder processing process, the method of clamping at both ends is relied upon, which is not stable enough when handling heavy or high cutting forces, causing tool deviation and affecting processing accuracy.

Method used

The positioning structure includes a base, a clamping block, a slide, a slider, a right-angle frame and a drive assembly. The motor drives the bidirectional screw to move the clamping block. Combined with the composite guide plate and slide, multi-point clamping and tightening of the CNC tool holder can be achieved to enhance stability.

Benefits of technology

The machining stability of the CNC tool holder is improved, tool offset is reduced, machining accuracy is guaranteed, and the adjustable structure adapts to tool holders of different lengths, increasing versatility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a positioning structure for numerical control knife handle production, which relates to the technical field of numerical control knife handle production and comprises a base, two clamping blocks are movably arranged on the upper surface of the base, sliding grooves are formed in the surfaces of the opposite sides of the two clamping blocks, and two sliding blocks are arranged in the two sliding grooves in a sliding mode. A worker starts the first motor, the two-way lead screw rotates and drives the two moving blocks and the clamping blocks to move in the direction of the moving groove in a thread screwing-in mode, the two clamping blocks move relatively and clamp the numerical control cutter handle, and in the moving process of the two clamping blocks, under the pushing effect of the composite type guide plate, the two clamping blocks are clamped by the two clamping blocks, so that the numerical control cutter handle is clamped. The right-angle frame and the sliding block move in the direction of the sliding groove, so that the jacking block can jack the inner wall of the numerical control cutter handle while the clamping block clamps the numerical control cutter handle, the stability is high, the cutter is not prone to deviation, and the machining precision is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of CNC tool handle production, in particular to a positioning structure for CNC tool handle production. Background Art

[0002] A CNC toolholder is part of the tool holder on a CNC machine tool. It's primarily used to connect the tool to the machine spindle, transmitting the spindle's torque and rotational moment while ensuring tool stability and accuracy during machine operation. Existing CNC toolholder machining processes require a positioning mechanism. Workers control the relative movement of two clamping plates to clamp the CNC toolholder. However, relying solely on this two-end clamping method can be insecure when handling heavy or high-cutting-force toolholders, leading to tool deviation and significant reductions in machining accuracy. Utility Model Content

[0003] The main purpose of the utility model is to provide a positioning structure for the production of CNC tool holders, which can effectively solve the problem in the background technology that during the processing of CNC tool holders, a positioning structure is needed to position them, and the staff controls the relative movement of two clamping plates to clamp the CNC tool holder. However, relying solely on this two-end clamping method, the stability is insufficient when the processing equipment handles heavy or high-cutting force tool holders, and the tool is easily offset, resulting in a significant reduction in processing accuracy.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A positioning structure for producing CNC tool handles, comprising a base, wherein two clamping blocks are movably provided on the upper surface of the base, and slide grooves are provided on the surfaces of the two clamping blocks on opposite sides thereof, and two sliders are slidably provided in the two slide grooves, and a top block is fixedly installed on the side of each slider away from the clamping block, and right-angle brackets are fixedly installed on the sides of adjacent sliders away from each other, and the sides of adjacent right-angle brackets away from each other respectively pass through the corresponding clamping blocks;

[0006] The upper surface of the base is provided with a driving assembly for driving the clamping block to move

[0007] The upper surface of the base is provided with a guide component for guiding the movement of the right-angle frame.

[0008] Preferably, the driving assembly includes a moving groove, the moving groove is opened on the upper surface of the base, and two moving blocks are slidably provided in the moving groove, and the upper surfaces of the two moving blocks are respectively fixedly connected to corresponding clamping blocks;

[0009] A bidirectional screw is rotatably installed between the two sides of the inner wall of the movable groove, and the two movable blocks are respectively threaded on both sides of the bidirectional screw rod body. One end of the bidirectional screw passes through the base and is provided with a first motor. The first motor is fixedly installed on one side of the base, and the output shaft end of the first motor is fixedly connected to the bidirectional screw.

[0010] Preferably, the guide assembly includes a plurality of support columns, each of which is movably arranged on a corresponding side of the upper surface of the base, and a composite guide plate is fixedly mounted on the upper end of each support column.

[0011] Preferably, the upper surface of the base is provided with a moving component for a worker to control the movement of the composite guide plate;

[0012] The movable assembly includes two connecting grooves, and connecting blocks are slidably arranged in the two connecting grooves. The upper surface of each connecting block is fixedly connected to the corresponding support column. Bidirectional studs are rotatably installed between the two sides of the inner walls of the two connecting grooves, and the adjacent connecting blocks are threadedly arranged on both sides of the corresponding bidirectional stud rod body.

[0013] Preferably, one end of the two bidirectional stud rods passes through the base and is sleeved with a gear, and a toothed chain is sleeved on the surfaces of the two gears. The toothed chain is engaged with the two gears, and a handwheel is fixedly installed on one end of one of the bidirectional studs.

[0014] Preferably, support blocks are fixedly mounted on opposite sides of adjacent right-angle frames, and a rolling ball is movably provided on the opposite side of each support block.

[0015] Preferably, a slide bar is fixedly installed between the inner walls of the two slide grooves, and the adjacent slide blocks are slidably arranged on both sides of the corresponding slide bar body;

[0016] Springs are sleeved on both sides of the two slide rod bodies.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The staff starts the first motor, and the bidirectional screw rotates and drives the two moving blocks and the clamping block to move along the moving groove by screwing in the thread, so that the two clamping blocks move relative to each other and clamp the CNC tool holder. During the movement of the two clamping blocks, under the push of the composite guide plate, the right-angle frame and the slider move along the slide groove, so that the clamping block clamps the CNC tool holder while the top block can tighten the inner wall of the CNC tool holder. The stability is high, the tool is not easy to deviate, and the processing accuracy is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of a positioning structure for CNC tool holder production according to the present invention;

[0020] Figure 2 This is a front view structural diagram of a positioning structure for CNC tool holder production according to the present invention;

[0021] Figure 3 This utility model is a positioning structure for the production of CNC tool handles Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0022] Figure 4 This utility model is a positioning structure for the production of CNC tool handles Figure 3 A magnified schematic diagram of the structure at center A.

[0023] In the figure: 1. Base; 2. Clamping block; 3. Slide groove; 4. Slider; 5. Top block; 6. Right-angle bracket; 7. Drive assembly; 701. Moving groove; 702. Moving block; 703. Bidirectional screw rod; 704. First motor; 8. Guide assembly; 801. Support column; 802. Composite guide plate; 9. Moving assembly; 901. Connecting groove; 902. Connecting block; 903. Bidirectional stud; 10. Gear; 11. Toothed chain; 12. Handwheel; 13. Support block; 14. Rolling ball; 15. Slide rod; 16. Spring. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figures 1-4 As shown, a positioning structure for CNC tool handle production includes a base 1, two clamping blocks 2 are movably provided on the upper surface of the base 1, and a slide groove 3 is provided on the surface of the two clamping blocks 2 on opposite sides. Two sliders 4 are slidably provided in the two slide grooves 3, and each slider 4 is fixedly installed with a top block 5 on the side away from the clamping block 2. Adjacent sliders 4 are fixedly installed with right-angle brackets 6 on the sides away from each other, and adjacent right-angle brackets 6 respectively penetrate the corresponding clamping blocks 2 on the sides away from each other;

[0026] The upper surface of the base 1 is provided with a driving assembly 7 for driving the clamping block 2 to move.

[0027] A guide assembly 8 for guiding the movement of the right-angle frame 6 is provided on the upper surface of the base 1 .

[0028] The driving assembly 7 includes a moving groove 701, which is provided on the upper surface of the base 1. The moving groove 701 is slidably provided with two moving blocks 702. The upper surfaces of the two moving blocks 702 are respectively fixedly connected to the corresponding clamping blocks 2;

[0029] A bidirectional screw rod 703 is rotatably installed between the two sides of the inner wall of the movable groove 701, and two movable blocks 702 are respectively threadedly arranged on both sides of the rod body of the bidirectional screw rod 703. One end of the bidirectional screw rod 703 passes through the base 1 and is provided with a first motor 704. The first motor 704 is fixedly installed on one side of the base 1, and the output shaft end of the first motor 704 is fixedly connected to the bidirectional screw rod 703.

[0030] The guide assembly 8 includes a plurality of support columns 801 , each of which is movably arranged on a corresponding side of the upper surface of the base 1 , and a composite guide plate 802 is fixedly mounted on the upper end of each support column 801 .

[0031] The staff starts the first motor 704, and the bidirectional screw 703 rotates and drives the two moving blocks 702 and the clamping block 2 to move along the moving groove 701 by screwing in the thread, so that the two clamping blocks 2 move relative to each other and clamp the CNC tool holder. During the movement of the two clamping blocks 2, under the push of the composite guide plate 802, the right-angle frame 6 and the slider 4 move along the slide groove 3, so that the clamping block 2 clamps the CNC tool holder while the top block 5 can tighten the inner wall of the CNC tool holder, with high stability, and the tool is not easy to deviate, thereby ensuring the processing accuracy.

[0032] In another embodiment of the present invention, a moving assembly 9 for a worker to control the movement of the composite guide plate 802 is provided on the upper surface of the base 1;

[0033] The movable component 9 includes two connecting grooves 901, and connecting blocks 902 are slidingly arranged in the two connecting grooves 901. The upper surface of each connecting block 902 is fixedly connected to the corresponding support column 801. Two-way studs 903 are rotatably installed between the two sides of the inner walls of the two connecting grooves 901, and adjacent connecting blocks 902 are threadedly arranged on both sides of the corresponding two-way stud 903 rod.

[0034] The staff rotates the two-way stud 903, which drives the support column 801 and the composite guide plate 802 to move along the direction of the connecting groove 901 by screwing in the thread. When the length of the CNC tool holder is different, the distance moved by the clamping block 2 is different. The staff controls the movement of the composite guide plate 802, which is convenient for the staff to adjust the distance between the inclined surface of the composite guide plate 802 and the right-angle frame 6 according to the distance moved by the clamping block 2, so that the top block 5 can tighten the inner wall of the CNC tool holder of different lengths, increasing versatility.

[0035] In another embodiment of the present invention, one end of the rod of the two bidirectional studs 903 passes through the base 1 and is sleeved with a gear 10, and a toothed chain 11 is sleeved on the surface of the two gears 10. The toothed chain 11 is engaged with the two gears 10, and a handwheel 12 is fixedly installed on one end of one of the bidirectional studs 903.

[0036] The staff rotates the hand wheel 12 , and under the meshing action of the toothed chain 11 and the gear 10 , the staff can simultaneously control the rotation of the two bidirectional studs 903 , thereby improving the movement accuracy of each composite guide plate 802 .

[0037] In another embodiment of the present invention, adjacent right-angle brackets 6 are fixedly mounted with support blocks 13 on opposite sides thereof, and each support block 13 is movably provided with a rolling ball 14 on the opposite side thereof.

[0038] By providing the rolling ball 14, the friction force experienced by the right-angle frame 6 when moving along the composite guide plate 802 is greatly reduced under the rolling action of the rolling ball 14, thereby avoiding excessive wear of the right-angle frame 6 and the composite guide plate 802 and extending their service life.

[0039] In another embodiment of the present invention, a slide bar 15 is fixedly installed between the inner walls of the two slide grooves 3, and the adjacent sliders 4 are slidably arranged on both sides of the corresponding slide bar 15;

[0040] Springs 16 are sleeved on both sides of the two slide bars 15 .

[0041] By setting the spring 16, when the composite guide plate 802 no longer pushes the right-angle frame 6, the top block 5 is automatically reset under the elastic force of the compressed spring 16, and there is no need for the staff to manually reset it, thereby reducing the workload of the staff.

[0042] The working principle of the positioning structure for CNC tool holder production:

[0043] During use, the staff rotates the two-way stud 903, causing it to rotate and then drive the support column 801 and the composite guide plate 802 to move along the direction of the connecting groove 901 by screwing in the thread. When the length of the CNC tool handle is different, the distance moved by the clamping block 2 is different. The staff controls the movement of the composite guide plate 802, which is convenient for the staff to adjust the distance between the inclined surface of the composite guide plate 802 and the right-angle frame 6 according to the distance moved by the clamping block 2, so that the top block 5 can tighten the inner wall of CNC tool handles of different lengths, increasing versatility.

[0044] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A positioning structure for producing a CNC tool handle, comprising a base (1), characterized in that: Two clamping blocks (2) are movably provided on the upper surface of the base (1), and a sliding groove (3) is provided on the surface of the two clamping blocks (2) on opposite sides. Two sliders (4) are slidably provided in the two sliding grooves (3), and a top block (5) is fixedly installed on the side of each slider (4) away from the clamping block (2). A right-angle bracket (6) is fixedly installed on the side of adjacent sliders (4) away from each other, and the sides of adjacent right-angle brackets (6) away from each other respectively penetrate the corresponding clamping blocks (2); The upper surface of the base (1) is provided with a driving component (7) for driving the clamping block (2) to move. The upper surface of the base (1) is provided with a guide assembly (8) for guiding the movement of the right-angle frame (6).

2. A positioning structure for CNC tool handle production according to claim 1, characterized in that: The driving assembly (7) comprises a moving groove (701), the moving groove (701) is provided on the upper surface of the base (1), two moving blocks (702) are slidably provided in the moving groove (701), and the upper surfaces of the two moving blocks (702) are respectively fixedly connected to the corresponding clamping blocks (2); A bidirectional screw rod (703) is rotatably mounted between the inner walls of the movable groove (701), and the two movable blocks (702) are respectively threadedly arranged on both sides of the rod body of the bidirectional screw rod (703). One end of the bidirectional screw rod (703) passes through the base (1) and is provided with a first motor (704). The first motor (704) is fixedly mounted on one side of the base (1), and the output shaft end of the first motor (704) is fixedly connected to the bidirectional screw rod (703).

3. The positioning structure for producing CNC tool handles according to claim 2, characterized in that: The guide assembly (8) comprises a plurality of support columns (801), each of the support columns (801) being movably arranged on a corresponding side of the upper surface of the base (1), and a composite guide plate (802) being fixedly mounted on the upper end of each support column (801).

4. The positioning structure for producing CNC tool handles according to claim 3, characterized in that: The upper surface of the base (1) is provided with a moving component (9) for a worker to control the movement of the composite guide plate (802); The moving assembly (9) comprises two connecting grooves (901), wherein a connecting block (902) is slidably arranged in each of the two connecting grooves (901), and the upper surface of each connecting block (902) is fixedly connected to the corresponding support column (801), and a bidirectional stud (903) is rotatably installed between the two sides of the inner wall of the two connecting grooves (901), and the adjacent connecting blocks (902) are respectively threadedly arranged on both sides of the rod body of the corresponding bidirectional stud (903).

5. The positioning structure for producing CNC tool handles according to claim 4, characterized in that: One end of the rod of the two bidirectional studs (903) passes through the base (1) and is sleeved with a gear (10), and a toothed chain (11) is sleeved on the surface of the two gears (10), and the toothed chain (11) is meshed with the two gears (10), and a hand wheel (12) is fixedly installed on one end of one of the bidirectional studs (903).

6. The positioning structure for producing CNC tool handles according to claim 1, characterized in that: A support block (13) is fixedly mounted on one opposite side of each of the adjacent right-angle frames (6), and a rolling ball (14) is movably arranged on one opposite side of each of the support blocks (13).

7. The positioning structure for producing CNC tool handles according to claim 1, characterized in that: A slide bar (15) is fixedly installed between the inner walls of the two slide grooves (3), and the adjacent sliders (4) are slidably arranged on both sides of the corresponding slide bar (15); Springs (16) are sleeved on both sides of the rod bodies of the two slide rods (15).