Clamping device of die linear cutting machine tool

By introducing a combination of arc clamps and rectangular clamps into the clamping device of the mold wire cutting machine tool, combining the multi-axis linkage system driven by the ring gear and the motor, the problem of insolid clamping is solved, and the firm clamping and central positioning of workpieces of different shapes is achieved, which improves the applicability and stability of the device.

CN223250725UActive Publication Date: 2025-08-22QINGDAO MAOCHUAN MOLD CO LTD
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Patent Information

Application Number
CN202422551455.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-22
Publication Date
2025-08-22
Estimated Expiration
2034-10-22

AI Technical Summary

Technical Problem

The clamping devices of existing mold wire cutting machines cannot effectively deal with flat surfaces and curved surface workpieces, resulting in unsolid clamping and increasing waste rate.

Method used

The positioning components consisting of arc-shaped clamps and rectangular clamps are adopted, combined with a multi-axis linkage system driven by ring gears, rotating gears and motors, to achieve flexible positioning and stable clamping of workpieces of different shapes.

Benefits of technology

It improves the applicability and stability of the clamping device, and can flexibly adjust the height of the positioning assembly, ensure the center positioning of the workpiece, and reduce the scrap rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamping device of a die linear cutting machine tool, which comprises a base and a product to be processed, a cavity is arranged in the base, a transverse screw is arranged in the cavity through a supporting mechanism, an inner motor is arranged in the cavity, the transverse screw is connected with the inner motor through a rotating mechanism, and the transverse screw is connected with the inner motor through a clamping mechanism. A transverse screw rod is arranged on the base, a movable frame is arranged on the transverse screw rod in a threaded sleeving mode through a first limiting mechanism, a vertical screw rod is rotationally arranged on the movable frame, a positioning assembly is arranged on the vertical screw rod in a threaded sleeving mode through a second limiting mechanism, the positioning assembly is composed of an arc-shaped clamping block and a rectangular clamping block, and a gear ring is rotationally arranged on the base. The rotary frame and the positioning assembly are arranged, and the positioning assembly is composed of the arc-shaped clamping block and the rectangular clamping block, so that the device has the capability of clamping and positioning workpieces with flat surfaces and arc-shaped surfaces, the applicability of the device is ensured, the device can be flexibly adjusted, and the use convenience of the device is ensured.
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Description

Technical Field

[0001] The utility model relates to the technical field of positioning, in particular to a clamping device of a mold wire cutting machine tool. Background Art

[0002] Wire EDM machines remove metal material by generating pulsed spark discharges between an electrode wire (usually molybdenum or copper) and the workpiece. Controlled by a numerical control system, the electrode wire moves along a predetermined trajectory, precisely cutting the workpiece. During the discharge process, a working fluid (usually deionized water or a specialized cutting fluid) provides cooling, chip removal, and insulation.

[0003] A prominent issue currently exists in the clamping devices of wire-cut die cutting machines: most clamping and positioning systems utilize a single fixture, which limits their applicability to a certain extent. This single fixture is limited in its inability to effectively handle workpieces with flat or curved surfaces. For example, if only one rectangular fixture is used, it is difficult to achieve stable clamping for cylindrical workpieces, resulting in a loose clamp and the workpiece easily falling off during positioning, increasing scrap rates. To address this issue, a clamping device for wire-cut die cutting machines is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a clamping device for a mold wire cutting machine.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A clamping device for a mold wire cutting machine comprises a base and a product to be processed, a cavity being provided inside the base, a horizontal screw being provided in the cavity through a supporting mechanism, an inner motor being provided in the cavity, the horizontal screw being connected to the inner motor through a rotating mechanism, a movable frame being provided on the horizontal screw through a threaded sleeve of a first limiting mechanism, a vertical screw being rotatably provided on the movable frame, a positioning assembly being provided on the vertical screw through a threaded sleeve of a second limiting mechanism, the positioning assembly being composed of an arc-shaped clamping block and a rectangular clamping block, a gear ring being rotatably provided on the base, the vertical screw being connected to the gear ring through a rotating mechanism, an outer motor being provided on the base, and the outer motor being connected to the gear ring through a meshing mechanism.

[0007] Preferably, the support mechanism includes a support plate arranged in the cavity, the transverse screw rotates through the support plate, and one end of the transverse screw is rotatably connected to the inner wall of the cavity.

[0008] Preferably, the rotating mechanism includes a transmission gear mounted on the transverse screw, and the output shaft of the inner motor is equipped with a driving gear meshing with the transmission gear.

[0009] Preferably, the first limiting mechanism includes a cross bar installed in the cavity, with both ends of the cross bar fixedly connected to the inner wall of the cavity and the outer wall of the support plate respectively, the cross bar is parallel to the cross screw, and the cross bar slides through the movable frame.

[0010] Preferably, the second limiting mechanism includes a vertical rod arranged in the movable frame, the vertical rod is parallel to the vertical screw, and the vertical screw slides through the positioning assembly.

[0011] Preferably, the rotating mechanism includes a lifting gear mounted on the moving frame and connected to the vertical screw, the moving frame is provided with a rotating opening, and the lifting gear is mounted in the rotating opening.

[0012] Preferably, the engagement mechanism comprises a rotating gear mounted on the output shaft of the external motor, and the rotating gear is engaged with the ring gear.

[0013] Beneficial effects of the utility model:

[0014] 1. By setting up a rotating frame and a positioning component, and the positioning component is composed of an arc-shaped clamping block and a rectangular clamping block, it has the ability to clamp and position workpieces on flat surfaces and arc-shaped surfaces, ensuring the applicability of the device and flexible adjustment, ensuring the convenience of use of the device.

[0015] 2. Through the vertical screw, gear ring, rotating gear, external motor and lifting gear, the height of the positioning component in this solution can be flexibly changed, so that it can be located at the center of the product to be processed during positioning and clamping, ensuring the stability of clamping and positioning. In addition, the height changes of multiple positioning components are adjusted synchronously, ensuring the linkage of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a clamping device for a mold wire cutting machine tool proposed in the present invention;

[0017] Figure 2 for Figure 1 A magnified schematic diagram of the structure at A;

[0018] Figure 3 for Figure 1 Schematic diagram of the vertical cross-section structure;

[0019] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B.

[0020] In the figure: 1 base, 2 product to be processed, 3 moving port, 4 moving frame, 5 vertical screw, 6 vertical rod, 7 positioning assembly, 8 rotating port, 9 lifting gear, 10 ring gear, 11 external motor, 12 rotating gear, 13 cavity, 14 support plate, 15 horizontal screw, 16 horizontal rod, 17 internal motor, 18 driving gear, 19 transmission gear. DETAILED DESCRIPTION

[0021] 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.

[0022] Reference Figure 1-4 A clamping device for a mold wire cutting machine tool includes a base 1 and a product to be processed 2. A cavity 13 is provided inside the base 1. A horizontal screw 15 is provided in the cavity 13 through a supporting mechanism. An internal motor 17 is provided in the cavity 13. The horizontal screw 15 is connected to the internal motor 17 through a rotating mechanism. A movable frame 4 is threadedly sleeved on the horizontal screw 15 through a first limiting mechanism. The movable frame 4 is designed in two sections and the upper and lower sections are rotatably connected. Since the lower section is threadedly sleeved on the horizontal screw 15, it cannot rotate. Therefore, only the upper section movable frame 4 can rotate.

[0023] A vertical screw 5 is rotatably provided on the movable frame 4, and a positioning assembly 7 is provided on the vertical screw 5 through a threaded sleeve of a second limiting mechanism. The positioning assembly 7 is composed of an arc-shaped clamping block and a rectangular clamping block. A gear ring 10 is rotatably provided on the base 1, and the vertical screw 5 is connected to the gear ring 10 through a rotating mechanism. An external motor 11 is provided on the base 1, and the external motor 11 is connected to the gear ring 10 through an engagement mechanism.

[0024] The support mechanism includes a support plate 14 arranged in the cavity 13, and the cross screw 15 rotates through the support plate 14. One end of the cross screw 15 is rotatably connected to the inner wall of the cavity 13. The support plate 14 plays a role in stabilizing the cross screw 15. One end of the cross screw 15 is rotatably connected to the inner wall of the cavity 13, and the other end relies on the support plate 14 to ensure the stability of the cross screw 15 when rotating in the cavity 13, and no threads are set on the outer wall of the part connected to the support plate 14.

[0025] The rotating mechanism includes a transmission gear 19 installed on the horizontal screw 15. The output shaft of the inner motor 17 is equipped with a driving gear 18 that meshes with the transmission gear 19. The driving gear 18 is tightly meshed with the transmission gear 19. When the inner motor 17 is started, the driving gear 18 of its output shaft will rotate with the operation of the inner motor 17, and the power will be transmitted to the horizontal screw 15 through the transmission gear 19, thereby realizing the rotation of the horizontal screw 15.

[0026] The first limiting mechanism includes a cross bar 16 installed in the cavity 13, and the two ends of the cross bar 16 are fixedly connected to the inner wall of the cavity 13 and the outer wall of the support plate 14 respectively. The cross bar 16 is parallel to the cross screw 15. The cross bar 16 slides through the moving frame 4, and the movement of the moving frame 4 is limited by the cross bar 16 to ensure that it is firmly connected in a specific direction. Since the cross bar 16 is parallel to the cross screw 15, when the moving frame 4 moves under the drive of the cross screw 15, the cross bar 16 can prevent the moving frame 4 from deviating or shaking during movement, thereby ensuring the accuracy and stability of the operation.

[0027] The second limiting mechanism includes a vertical rod 6 arranged in the movable frame 4. The vertical rod 6 is parallel to the vertical screw 5. The vertical screw 5 slides through the positioning assembly 7. The movement of the positioning assembly 7 is limited by the vertical screw 5 to ensure that it is stably connected in a specific direction. Since the vertical screw 5 is parallel to the vertical rod 6, the vertical rod 6 can prevent the positioning assembly 7 from deviating or shaking when the positioning assembly 7 is raised or lowered.

[0028] The rotating mechanism includes a lifting gear 9 installed on the moving frame 4 and connected to the vertical screw 5. The moving frame 4 is provided with a rotating port 8, and the lifting gear 9 is installed in the rotating port 8. This connection method ensures that during operation, the vertical screw 5 can run with the rotation of the lifting gear 9, thereby realizing efficient operation of the entire rotating mechanism.

[0029] The meshing mechanism includes a rotating gear 12 mounted on the output shaft of the external motor 11. This gear 12 meshes with the ring gear 10. When the external motor 11 is started, the output shaft drives the rotating gear 12 to rotate. The rotating gear 12, in turn, meshes with the ring gear 10, transmitting power to the other connected components, thus achieving coordinated operation of the entire system. This meshing mechanism design ensures efficient and accurate power transmission, providing a solid foundation for the stable operation of the equipment.

[0030] When the present invention is used, the product to be processed 2 is placed on the base 1, and the product to be processed 2 is a square cylinder. At this time, the inner motor 17 is started, and the inner motor 17 drives the horizontal screw 15 to rotate with the help of the driving gear 18 and the transmission gear 19. When the horizontal screw 15 rotates, the movable frame 4 moves, and the movable frame 4 moves toward the direction of the ring gear 10, and then the rotating gear 12 is engaged with the ring gear 10, and the outer motor 11 is started again. At this time, the rotating gear 12 will rotate, and the rotating gear 12 will drive the ring gear 10 to rotate, and the ring gear 10 will drive the vertical screw 5 to rotate with the help of the lifting gear 9. As shown in the figure, both vertical screws 5 are rotated, and the height adjustment of the arc clamping block and the rectangular clamping block can be realized. Wait until they are adjusted to the center position of the product to be processed 2, and finally the inner motor 17 is reversed to move the movable frame 4 close to the product to be processed 2, and finally with the help of the rectangular clamping block, the positioning and clamping of the product to be processed 2 can be achieved.

[0031] When the product 2 to be processed becomes cylindrical, it is necessary to adjust the positions of the arc-shaped clamping block and the rectangular clamping block. At this time, the upper movable frame 4 rotates and rotates 180 degrees. At this time, the adjustment of the positions of the arc-shaped clamping block and the rectangular clamping block is completed. At this time, the device can adapt to the positioning and clamping of the cylindrical product 2 to be processed.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A clamping device for a mold wire cutting machine tool, comprising a base (1) and a product to be processed (2), characterized in that: A cavity (13) is provided inside the base (1), a horizontal screw (15) is provided in the cavity (13) through a supporting mechanism, an inner motor (17) is provided in the cavity (13), the horizontal screw (15) is connected to the inner motor (17) through a rotating mechanism, a moving frame (4) is provided on the horizontal screw (15) through a first limiting mechanism thread sleeve, a vertical screw (5) is rotatably provided on the moving frame (4), a positioning assembly (7) is provided on the vertical screw (5) through a second limiting mechanism thread sleeve, the positioning assembly (7) is composed of an arc-shaped clamping block and a rectangular clamping block, a gear ring (10) is rotatably provided on the base (1), the vertical screw (5) is connected to the gear ring (10) through a rotating mechanism, an outer motor (11) is provided on the base (1), and the outer motor (11) is connected to the gear ring (10) through a meshing mechanism.

2. The clamping device of a mold wire cutting machine according to claim 1, characterized in that: The support mechanism comprises a support plate (14) arranged in the cavity (13); the transverse screw (15) rotates through the support plate (14); and one end of the transverse screw (15) is rotatably connected to the inner wall of the cavity (13).

3. The clamping device of a mold wire cutting machine according to claim 2, characterized in that: The rotating mechanism comprises a transmission gear (19) mounted on the horizontal screw (15), and the output shaft of the inner motor (17) is mounted with a driving gear (18) meshing with the transmission gear (19).

4. The clamping device of a mold wire cutting machine according to claim 3, characterized in that: The first limiting mechanism comprises a cross bar (16) installed in the cavity (13), the two ends of the cross bar (16) are fixedly connected to the inner wall of the cavity (13) and the outer wall of the support plate (14), the cross bar (16) is parallel to the cross screw (15), and the cross bar (16) slides through the movable frame (4).

5. The clamping device of a mold wire cutting machine according to claim 4, characterized in that: The second limiting mechanism comprises a vertical rod (6) arranged in the movable frame (4), the vertical rod (6) is parallel to the vertical screw rod (5), and the vertical screw rod (5) slides through the positioning assembly (7).

6. The clamping device of a mold wire cutting machine according to claim 5, characterized in that: The rotating mechanism comprises a lifting gear (9) mounted on a moving frame (4) and connected to a vertical screw (5); a rotating opening (8) is provided on the moving frame (4), and the lifting gear (9) is mounted in the rotating opening (8).

7. The clamping device of a mold wire cutting machine according to claim 6, characterized in that: The meshing mechanism comprises a rotating gear (12) mounted on the output shaft of the external motor (11), and the rotating gear (12) meshes with the ring gear (10).