Wire tightening mechanism of linear cutting machine tool
By designing a wire tightening mechanism in an online cutting machine tool, the tightness of the metal wire is adjusted by using the return spring and gear tooth rod structure, the problem of changing the tightness of the metal wire under the action of external forces is solved, ensuring the cutting effect and equipment safety.
Patent Information
- Application Number
- CN202422123391.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In online cutting machine tools, the tightness of the metal wire is easily changed under the action of external forces, affecting the cutting effect and even causing the metal wire to break.
The wire tightening mechanism is adopted, and the return spring and gear tooth rod structure is used to drive the tooth rod movement by rotating the drum and gear, adjusting the tightness of the metal wire to ensure that the tightness of the metal wire remains unchanged under the action of external forces.
Effectively maintain the tightness of the metal wires, avoid breaking of the metal wires during the cutting process, and ensure safe operation of the equipment.
Smart Images
Figure CN223185672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wire cutting machine tools, in particular to a wire tightening mechanism of a wire cutting machine tool. Background Art
[0002] The wire cutting machine uses the electrode wire to perform pulse spark discharge on the workpiece, melt and erode the material, and the cutting fluid washes away the erosion products. Since the diameter of the electrode wire is relatively small, the electrode wire will be contaminated when cutting different materials. The electrode wire can be adjusted and replaced through the wire tightening mechanism.
[0003] After the tightness of the metal wire is adjusted, when the metal wire is subjected to external force during operation, the tightness of the metal wire will change, which may affect the cutting effect during operation. In severe cases, the metal wire may break. Utility Model Content
[0004] In view of this, the purpose of the present invention is to propose a wire tightening mechanism for a wire cutting machine tool to solve the problem that after the tightness of the metal wire is adjusted, when the metal wire is subjected to external force during operation, the tightness of the metal wire will change, which may affect the cutting effect during operation, and in severe cases, cause the metal wire to break.
[0005] Based on the above purpose, the utility model provides a wire-tightening mechanism for a wire-cutting machine tool, comprising a support base, a wire roller fixedly connected to the right side of the front end of the support base, a plurality of wire rollers having metal wires commonly connected to their outer sides, and a wire-tightening mechanism provided inside the support base for adjusting the tightness of the metal wire;
[0006] The wire tightening mechanism includes a slide groove opened at the front end of the support seat, a slider is slidably connected inside the slide groove, the front end of the slider is fixedly connected to a bracket, the right side of the bracket is fixedly connected to a contact roller, the left side of the bracket is fixedly connected to a gear rod, the interior of the support seat is rotatably connected to a rotating drum, the interior of the rotating drum is fixedly connected to a return spring, the interior of the rotating drum is rotatably connected to a rotating rod, the rod wall of the rotating rod is fixedly connected to the return spring, the front end of the rotating rod is fixedly connected to a gear, and the gear is meshed with the upper end of the gear rod.
[0007] Preferably, a transverse plate is fixedly connected to the front end of the support seat, and the upper end of the transverse plate is in contact with the lower end of the gear rod.
[0008] Preferably, the rear end of the rotating drum is fixedly connected to a rod, a rectangular groove is provided inside the rod, a rectangular block is slidably connected inside the rectangular groove, the rear end of the rectangular block is fixedly connected to a tooth block, the rear end of the support seat is fixedly connected to a limiting block, and the inside of the limiting block is slidably connected to the outside of the tooth block.
[0009] Preferably, a first spring is fixedly connected to the front end of the rectangular block, and a front end of the first spring is fixedly connected to the front end of the rectangular slot.
[0010] Preferably, the rear end of the tooth block is fixedly connected to a pulling block, and the outer side of the pulling block is arranged in an arc shape.
[0011] Beneficial effects of the utility model:
[0012] By setting up a return spring, after adjusting the tightness of the metal wire, when the metal wire encounters external force, the gear rod drives the gear to rotate, thereby causing the return spring to deform slightly. Due to the characteristics of the return spring, the elastic force of the return spring remains almost unchanged. In this way, during operation, even if the metal wire is deformed, the device can still ensure that the tightness of the metal wire remains unchanged, thereby ensuring the safe operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;
[0015] Figure 2 This is a schematic cross-sectional view of the support base according to an embodiment of the present utility model;
[0016] Figure 3 For the embodiment of the utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0017] The following are marked in the figure:
[0018] 1. Support seat; 2. Metal wire; 3. Wire roller; 4. Slide groove; 5. Slider; 6. Bracket; 7. Contact roller; 8. Gear; 9. Gear rod; 10. Rotating rod; 11. Rotating drum; 12. Return spring; 13. Rod; 14. Rectangular block; 15. Rectangular groove; 16. First spring; 17. Limit block; 18. Gear block; 19. Cross plate. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0020] like Figure 1-3 As shown, the utility model provides a wire tightening mechanism of a wire cutting machine tool, including a support base 1, a wire roller 3 is fixedly connected to the right side of the front end of the support base 1, the wire roller 3 is used to limit the metal wire 2, and the outer sides of the multiple wire rollers 3 are commonly connected to the metal wire 2, and the metal wire 2 is used for cutting. The existing technology is not repeated here. A wire tightening mechanism is provided inside the support base 1, and the wire tightening mechanism is used to adjust the tightness of the metal wire 2;
[0021] The wire tightening mechanism includes a slide groove 4 opened at the front end of the support seat 1, and a slider 5 is slidably connected inside the slide groove 4. The slider 5 moves inside the slide groove 4, and the front end of the slider 5 is fixedly connected to a bracket 6. The slider 5 drives the bracket 6 to move. The right side of the bracket 6 is fixedly connected to a contact roller 7. The movement of the bracket 6 drives the contact roller 7 to move. The left side of the bracket 6 is fixedly connected to a gear rod 9. The internal rotation of the support seat 1 is connected to a rotating drum 11, and the internal fixed connection of the rotating drum 11 is a return spring 12. The internal rotation of the rotating drum 11 is connected to a rotating rod 10. The rod wall of the rotating rod 10 is fixedly connected to the return spring 12. The front end of the rotating rod 10 is fixedly connected to a gear 8. When the gear rod 9 moves, it drives the gear 8 to rotate, and the gear 8 is meshed with the upper end of the gear rod 9;
[0022] When adjusting the tension of the metal wire 2, the rotating drum 11 is rotated at this time, and the rotation of the rotating drum 11 causes the return spring 12 to deform. It should be noted here that since the deformation of the return spring 12 requires multiple rotations to change the elastic force of the return spring 12, and then after rotating the rotating drum 11 multiple times, the rotation force of the rotating rod 10 is changed under the action of the return spring 12, and then the rotating rod 10 drives the gear 8 to rotate, and the gear 8 rotates to drive the gear rod 9 to move, the gear rod 9 drives the bracket 6 to move, and the bracket 6 drives the contact roller 7 to move, thereby applying pressure to the metal wire 2, thereby changing the tightness of the metal wire 2. During operation, when the metal wire 2 is squeezed by the outside world, the metal wire 2 is 2's tightness will occur, at this time the reaction force of the metal wire 2 on the contact roller 7 increases, so that the contact roller 7 drives the bracket 6 to move, and the bracket 6 drives the gear rod 9 to move, the moving distance of the gear rod 9 is small, the gear rod 9 drives the gear 8 to rotate, and the rotation amplitude of the gear 8 is small, which can avoid the metal wire 2 from breaking. When the gear 8 rotates, it drives the rotating rod 10 to rotate. At this time, the rotating rod 10 rotates the return spring 12, and the deformation of the return spring 12 is very small, which almost does not affect the elastic force of the return spring 12, thereby keeping the pressure of the contact roller 7 on the metal wire 2 unchanged. In this way, during operation, even if the metal wire 2 is deformed, the device can still ensure that the tightness of the metal wire 2 remains unchanged, thereby ensuring the safe operation of the device.
[0023] like Figure 1 As shown, the front end of the support seat 1 is fixedly connected to a horizontal plate 19, and the upper end of the horizontal plate 19 is in contact with the lower end of the gear rod 9. The horizontal plate 19 can provide a certain supporting force when the gear rod 9 moves, thereby making the gear rod 9 move more stably.
[0024] like Figure 2 and Figure 3 As shown, the rear end of the rotating drum 11 is fixedly connected with a rod 13, and a rectangular groove 15 is opened inside the rod 13. A rectangular block 14 is slidably connected inside the rectangular groove 15. The rectangular block 14 moves left and right inside the rectangular groove 15. The rear end of the rectangular block 14 is fixedly connected with a tooth block 18. The rear end of the support seat 1 is fixedly connected with a limit block 17. The interior of the limit block 17 is slidably connected to the outer side of the tooth block 18. The limit block 17 can limit the rotation of the tooth block 18. The front end of the rectangular block 14 is fixedly connected with a first spring 16. The first spring 16 has a certain pulling force on the rectangular block 14, so that the tooth block 18 can enter the interior of the limit block 17 after adjustment. The front end of the first spring 16 is fixedly connected to the front end of the rectangular groove 15. The rear end of the tooth block 18 is fixedly connected with a pulling block. The outer side of the pulling block is arranged in an arc shape, and the tooth block 18 is easily pulled out by the provided pulling block.
[0025] When adjusting the tightness of the metal wire 2, the pulling block is pulled to disengage the tooth block 18 from the limit block 17. At this time, the pulling block is rotated to rotate the rectangular block 14, which drives the rod 13 to rotate, and the rod 13 drives the rotating drum 11 to rotate. After adjusting the metal wire 2, under the action of the first spring 16, the rectangular block 14 moves forward, and the rectangular block 14 drives the tooth block 18 to be stuck in the inside of the limit block 17, thereby limiting the rotation of the tooth block 18 and improving the convenience of adjustment.
[0026] Working principle: When adjusting the tension of the metal wire 2, the rotating drum 11 is rotated at this time, and the rotation of the rotating drum 11 causes the return spring 12 to deform. It should be noted here that the deformation of the return spring 12 requires multiple rotations to change the elastic force of the return spring 12, and then after rotating the rotating drum 11 multiple times, the rotation force of the rotating rod 10 is changed under the action of the return spring 12, and then the rotating rod 10 drives the gear 8 to rotate, and the gear 8 rotates to drive the gear rod 9 to move, the gear rod 9 drives the bracket 6 to move, and the bracket 6 drives the contact roller 7 to move, thereby applying pressure to the metal wire 2, thereby changing the tightness of the metal wire 2. During operation, when the metal wire 2 is squeezed by the outside world, the metal wire 2 is The tightness of the metal wire 2 will change. At this time, the reaction force of the metal wire 2 on the contact roller 7 increases, so that the contact roller 7 drives the bracket 6 to move, and the bracket 6 drives the gear rod 9 to move. The moving distance of the gear rod 9 is small, and the gear rod 9 drives the gear 8 to rotate. The rotation amplitude of the gear 8 is small, which can avoid the metal wire 2 from breaking. When the gear 8 rotates, it drives the rotating rod 10 to rotate. At this time, the rotating rod 10 rotates the return spring 12. The deformation of the return spring 12 is very small, which almost does not affect the elastic force of the return spring 12, thereby keeping the pressure of the contact roller 7 on the metal wire 2 unchanged. In this way, during operation, even if the metal wire 2 is deformed, the device can still ensure that the tightness of the metal wire 2 remains unchanged, thereby ensuring the safe operation of the device.
[0027] Furthermore, when adjusting the tightness of the metal wire 2, the pull block is pulled to disengage the tooth block 18 from the limit block 17. At this time, the pull block is rotated to rotate the rectangular block 14, which drives the rod 13 to rotate, and the rod 13 drives the rotating drum 11 to rotate. After adjusting the metal wire 2, under the action of the first spring 16, the rectangular block 14 moves forward, and the rectangular block 14 drives the tooth block 18 to be stuck in the inside of the limit block 17, thereby limiting the rotation of the tooth block 18 and improving the convenience of adjustment.
[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0029] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A wire tightening mechanism for a wire cutting machine tool, comprising a support base (1), characterized in that: A wire roller (3) is fixedly connected to the right side of the front end of the support seat (1), and the outer sides of the plurality of wire rollers (3) are commonly connected to a metal wire (2). A wire tightening mechanism is provided inside the support seat (1), and the wire tightening mechanism is used to adjust the tightness of the metal wire (2); The tightening mechanism comprises a slide groove (4) provided at the front end of the support seat (1); a slider (5) is slidably connected inside the slide groove (4); a bracket (6) is fixedly connected to the front end of the slider (5); a contact roller (7) is fixedly connected to the right side of the bracket (6); a gear rod (9) is fixedly connected to the left side of the bracket (6); a rotating drum (11) is rotatably connected inside the support seat (1); a return spring (12) is fixedly connected inside the rotating drum (11); a rotating rod (10) is rotatably connected inside the rotating drum (11); a rod wall of the rotating rod (10) is fixedly connected to the return spring (12); a gear (8) is fixedly connected to the front end of the rotating rod (10); and the gear (8) is meshedly connected to the upper end of the gear rod (9).
2. The wire tightening mechanism of a wire cutting machine tool according to claim 1, characterized in that: The front end of the support seat (1) is fixedly connected to a transverse plate (19), and the upper end of the transverse plate (19) is in contact with the lower end of the gear rod (9).
3. The wire tightening mechanism of a wire cutting machine tool according to claim 1, characterized in that: The rear end of the rotating drum (11) is fixedly connected to a rod (13), a rectangular groove (15) is provided inside the rod (13), a rectangular block (14) is slidably connected inside the rectangular groove (15), a tooth block (18) is fixedly connected to the rear end of the rectangular block (14), and a limit block (17) is fixedly connected to the rear end of the support seat (1), and the interior of the limit block (17) is slidably connected to the outer side of the tooth block (18).
4. The wire tightening mechanism of a wire cutting machine tool according to claim 3, characterized in that: The front end of the rectangular block (14) is fixedly connected to a first spring (16), and the front end of the first spring (16) is fixedly connected to the front end of the rectangular slot (15).
5. The wire tightening mechanism of a wire cutting machine tool according to claim 3, characterized in that: The rear end of the tooth block (18) is fixedly connected to a pull block, and the outer side of the pull block is arranged in an arc shape.