Spring wire clamping assembly

Abstract

The utility model discloses a spring wire clamping assembly which comprises a wire cylinder and a wire clamping piece, the wire clamping piece is arranged outside the wire cylinder, the wire clamping piece comprises an installation assembly, clamping assemblies are arranged on the outer wall of one side of the installation assembly, the clamping assemblies are divided into the first clamping assembly and the second clamping assembly, the first clamping assembly comprises a first installation base, and the second clamping assembly comprises a second installation base. The outer wall of one side of the first mounting base is in threaded connection with a first mounting pin rod, one end of the first mounting pin rod is sleeved with a first pressing plate, the outer wall of one side of the top of the first mounting base is in threaded connection with a limiting bolt, a pressure spring is mounted at the bottom end of the limiting bolt through a bolt, and the bottom end of the pressure spring makes contact with the first pressing plate. The clamping assembly is divided into the first clamping assembly and the second clamping assembly, the first clamping assembly and the second clamping assembly are both matched with bolts through springs, continuous adjustment of linear clamping force is achieved, the clamping assembly can be matched with molybdenum wires or copper wires of different diameters, compared with a traditional structure, the vibration resistance is high, the pre-tightening force is dynamically adjusted according to the diameter of an electrode wire, and the clamping assembly is convenient to use. And wire breakage or slipping is not easily caused.

Description

Technical Field

[0001] This utility model relates to the field of wire clamping technology for wire EDM machine tool spools, specifically to a spring-loaded wire clamping assembly. Background Technology

[0002] A wire EDM machine is a special processing equipment that uses the principle of electric spark discharge to cut metal materials. Its core technology uses pulsed current to generate high-temperature plasma between two electrodes to erode the material surface and form a cutting path. The electrode wire (such as molybdenum wire, tungsten wire, or copper wire) serves as the tool electrode, forming a discharge channel between itself and the workpiece in a dielectric environment. The cutting path is precisely controlled by a CNC system.

[0003] For example, patent application CN202321866582.2, with authorization announcement date 20240213, discloses an automatic wire clamping device for a wire spool and a medium-speed wire EDM machine. The automatic wire clamping device includes: a first drive mechanism; a trigger mechanism; a wire spool, connected to the first drive mechanism for transmission, the first drive mechanism being configured to drive the wire spool to rotate, the circumferential wall of the wire spool having a through hole; a telescopic mechanism passing through the through hole, the trigger mechanism being configured to drive the telescopic mechanism to move from the wire clamping position along the through hole towards the outside of the wire spool to an open position; and a wire pressing element located outside the wire spool and fixed to the telescopic mechanism; when the telescopic mechanism is in the wire clamping position, the trigger mechanism is separated from the telescopic mechanism, and the wire pressing element abuts against the outer circumferential surface of the wire spool; when the telescopic mechanism is in the open position, the trigger mechanism cooperates with the telescopic mechanism, and the wire pressing element is spaced apart from the outer circumferential surface of the wire spool. This automatic wire clamping device is simple to operate and has high wire clamping efficiency.

[0004] The existing wire clamping structure on the wire spool uses rigid contact, which cannot dynamically adjust the preload according to the diameter of the electrode wire. This can easily lead to wire breakage or slippage, and the vibration resistance is weak. Traditional threaded locking structures are prone to loosening in high-frequency vibration environments, affecting the accuracy of the cutting path. Therefore, it is urgent to design a spring-loaded wire clamping assembly to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a spring clamp assembly to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A spring-loaded wire clamping assembly includes a wire spool and a wire clamping component. The wire clamping component is disposed outside the wire spool. The wire clamping component includes a mounting assembly. A clamping component is provided on one outer wall of the mounting assembly. The clamping assembly is divided into a clamping component one and a clamping component two. The clamping component one includes a mounting base one. A mounting pin one is threadedly connected to one outer wall of the mounting base one, and a pressure plate one is sleeved on one end of the mounting pin one. A limit bolt is threadedly connected to one outer wall of the top side of the mounting base one, and a compression spring is installed at the bottom end of the limit bolt through a bolt. The bottom end of the compression spring is in contact with the pressure plate one.

[0008] The clamping assembly 2 includes a mounting base 2, a mounting pin 2 is threadedly connected to one side of the outer wall of the mounting base 2, and a pressure plate 2 is sleeved on one end of the mounting pin 2. A coil spring is sleeved on the outside of the mounting pin 2, and one end of the coil spring is in contact with the pressure plate 2.

[0009] Furthermore, the mounting assembly includes a mounting ring, with an annular mounting groove on one outer wall and multiple limiting grooves on one inner wall of the mounting groove.

[0010] Furthermore, a limiting ring is integrally formed on one side of the outer wall of the mounting ring, and insertion holes are provided on both sides of the inner wall of the limiting ring, with fixing bolts inserted into the insertion holes.

[0011] Furthermore, a second mounting bolt is inserted into the outer wall of one side of the top of the second mounting base, and the bottom end of the second mounting bolt is threaded into one of the limiting grooves.

[0012] Furthermore, mounting bolts are inserted into the outer walls of both sides of the top of the mounting base, and the bottom ends of the two mounting bolts are respectively inserted into the two adjacent limiting grooves.

[0013] In the above technical solution, the spring clip assembly provided by this utility model has the following advantages:

[0014] (1) The clamping assembly designed in this utility model is divided into two types: clamping assembly one and clamping assembly two. Both clamping assembly one and clamping assembly two achieve continuous adjustment of linear clamping force through the cooperation of spring and bolt. They can be adapted to molybdenum wire or copper wire of different diameters. Compared with the traditional rigid structure, they have strong vibration resistance and can dynamically adjust the preload according to the diameter of the electrode wire, which is not easy to cause wire breakage or slippage.

[0015] (2) The installation component designed in this utility model has a limiting groove distributed in a ring array, which allows clamping component one or clamping component two to freely adjust the angle within a certain range through mounting bolt one and mounting bolt two, so as to meet the positioning requirements of complex cutting trajectories. Furthermore, the integrally formed limiting ring and the plug hole are used in conjunction with the fixing bolt to facilitate the adjustment of the position of the device on the wire drum. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a spring clamp wire assembly according to the present invention.

[0018] Figure 2 This is a schematic diagram of the clamping component structure provided in an embodiment of the spring clamp wire assembly of this utility model.

[0019] Figure 3 This is a schematic diagram of the installation component and clamping component II provided in an embodiment of the spring clip wire assembly of this utility model.

[0020] Figure 4 This is a schematic diagram of the installation component structure provided for an embodiment of the spring clip wire assembly of this utility model.

[0021] Figure 5 This is a schematic diagram of the mounting ring structure provided in an embodiment of the spring clamp wire assembly of this utility model.

[0022] Figure 6 This is a schematic diagram of a clamping component provided in an embodiment of the spring clamping wire assembly of this utility model.

[0023] Figure 7 This is a schematic diagram of the clamping component two provided in an embodiment of the spring clamping wire assembly of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Mounting assembly; 2. Clamping assembly; 4a. Clamping assembly one; 4b. Clamping assembly two; 3. Mounting ring; 4. Mounting groove; 5. Limiting ring; 6. Insertion hole; 7. Fixing bolt; 8. Limiting groove; 9. Mounting seat one; 10. Mounting bolt one; 11. Limiting bolt; 12. Compression spring; 13. Mounting pin one; 14. Pressure plate one; 15. Mounting seat two; 16. Mounting bolt two; 17. Mounting pin two; 18. Pressure plate two; 19. Coil spring. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-7As shown, the present invention provides a spring wire clamping assembly, including a wire spool 1 and a wire clamping component 2. The wire clamping component 2 is disposed outside the wire spool 1. The wire clamping component 2 includes a mounting component 3. A clamping component 4 is provided on one side of the outer wall of the mounting component 3. The clamping component 4 is divided into a clamping component 4a and a clamping component 4b. The clamping component 4a includes a mounting base 11. A mounting pin 15 is threadedly connected to one side of the outer wall of the mounting base 11, and a pressure plate 16 is sleeved on one end of the mounting pin 15. A limit bolt 13 is threadedly connected to one side of the outer wall of the top of the mounting base 11, and a compression spring 14 is installed at the bottom end of the limit bolt 13 by a bolt. The bottom end of the compression spring 14 is in contact with the pressure plate 16.

[0028] The clamping assembly 2 4b includes a mounting base 2 17. A mounting pin 2 19 is threadedly connected to the outer wall of one side of the mounting base 2 17. A pressure plate 20 is sleeved on one end of the mounting pin 2 19. A coil spring 21 is sleeved on the outside of the mounting pin 2 19, and one end of the coil spring 21 is in contact with the pressure plate 20.

[0029] Specifically, in this embodiment, the device includes a wire spool 1 and a wire clamping component 2. The wire clamping component 2 is disposed outside the wire spool 1. The wire clamping component 2 includes a mounting assembly 3. A clamping assembly 4 is provided on one side of the outer wall of the mounting assembly 3. The clamping assembly 4 is divided into a clamping assembly 4a and a clamping assembly 4b. The clamping assembly 4a includes a mounting base 11. A mounting pin 15 is threadedly connected to one side of the outer wall of the mounting base 11. A pressure plate 16 is sleeved on one end of the mounting pin 15. A limit bolt 13 is threadedly connected to one side of the outer wall of the top of the mounting base 11. Rotating the limit bolt 13 changes the compression amount of the compression spring 14. The compression spring 14 pushes the pressure plate 16 downward, so that the pressure plate 16 contacts the electrode wire and applies an adjustable clamping force of 5-20N. The bottom end of the limit bolt 13 is bolted with a compression spring 14, and the bottom end of the compression spring 14 contacts the pressure plate 16.

[0030] Clamping assembly 2b includes mounting base 217. Mounting pin 29 is threadedly connected to the outer wall of one side of mounting base 217. One end of mounting pin 219 is sleeved with pressure plate 20. A coil spring 21 is sleeved on the outside of mounting pin 219. When pressure plate 20 clamps the electrode wire, the coil spring 21 on the outside of mounting pin 219 generates radial elastic deformation, forming bidirectional damping and suppressing the lateral swing of the electrode wire. One end of coil spring 21 is in contact with pressure plate 20. By rotating the threaded connection of mounting pin 15 or mounting pin 29, the contact distance between pressure plate 16, pressure plate 20 and electrode wire can be finely adjusted to adapt to molybdenum wire or copper wire with different diameters of 0.1-0.3mm.

[0031] This utility model provides a spring-loaded wire clamping assembly. The clamping assembly 4 is divided into two types: clamping assembly 1 4a and clamping assembly 2 4b. Both clamping assembly 1 4a and clamping assembly 2 4b achieve continuous adjustment of linear clamping force through the cooperation of spring and bolt. They can be adapted to molybdenum wire or copper wire of different diameters. Compared with the traditional rigid structure, they have strong vibration resistance and can dynamically adjust the preload according to the diameter of the electrode wire, making it less likely to cause wire breakage or slippage.

[0032] In one embodiment provided by this utility model, such as Figure 4-5 As shown, the mounting component 3 includes a mounting ring 5. The outer wall of one side of the mounting ring 5 has a mounting groove 6 with an annular structure, and the inner wall of the mounting groove 6 has a plurality of limiting grooves 10. The limiting grooves 10 in the mounting groove 6 are distributed in a ring array. The clamping component 4a is inserted into two adjacent limiting grooves 10 by mounting bolt 12, and the clamping component 4b is inserted into a single limiting groove 10 by mounting bolt 18. By adjusting the position of the bolts in the annular groove, the angle adjustment of the clamping assembly can be achieved by 4±15° to meet the positioning requirements of complex cutting paths. One side of the outer wall of the mounting ring 5 is integrally formed with a limiting ring 7, and both sides of the inner wall of the limiting ring 7 are provided with insertion holes 8. Fixing bolts 9 are inserted into the insertion holes 8. One side of the top outer wall of the mounting base 17 is fitted with a mounting bolt 18, and the bottom end of the mounting bolt 18 is threaded into one of the limiting grooves 10. Both sides of the top outer wall of the mounting base 11 are fitted with mounting bolts 12. The mounting bolts 12 facilitate the fixing of the mounting base 11 to the mounting ring 5, and the bottom ends of the two mounting bolts 12 are respectively inserted into the two adjacent limiting grooves 10.

[0033] Example 1

[0034] A spring-loaded wire clamping assembly includes a mounting assembly 3. A clamping assembly 4 is provided on one outer wall of the mounting assembly 3. The clamping assembly 4 is divided into a clamping assembly 4a and a clamping assembly 4b. The clamping assembly 4a includes a mounting base 11. A mounting pin 15 is threadedly connected to one outer wall of the mounting base 11, and a pressure plate 16 is sleeved on one end of the mounting pin 15. A limit bolt 13 is threadedly connected to one outer wall of the top of the mounting base 11. Rotating the limit bolt 13 changes the compression amount of the compression spring 14. The compression spring 14 pushes the pressure plate 16 downward, so that the pressure plate 16 contacts the electrode wire and applies an adjustable clamping force of 5-20N. The bottom end of the limit bolt 13 is bolted to the compression spring 14, and the bottom end of the compression spring 14 contacts the pressure plate 16.

[0035] Clamping assembly 2b includes mounting base 217. Mounting pin 29 is threadedly connected to the outer wall of one side of mounting base 217. One end of mounting pin 219 is sleeved with pressure plate 20. A coil spring 21 is sleeved on the outside of mounting pin 219. When pressure plate 20 clamps the electrode wire, the coil spring 21 on the outside of mounting pin 219 generates radial elastic deformation, forming bidirectional damping and suppressing the lateral swing of the electrode wire. One end of coil spring 21 is in contact with pressure plate 20. By rotating the threaded connection of mounting pin 15 or mounting pin 29, the contact distance between pressure plate 16, pressure plate 20 and electrode wire can be finely adjusted to adapt to molybdenum wire or copper wire with different diameters of 0.1-0.3mm.

[0036] Example 2

[0037] This embodiment further defines the features of Embodiment 1. The mounting component 3 includes a mounting ring 5. One outer wall of the mounting ring 5 has an annular mounting groove 6, and one inner wall of the mounting groove 6 has multiple limiting grooves 10 arranged in a circular array. Clamping component 4a is inserted into two adjacent limiting grooves 10 via mounting bolt 12, and clamping component 4b is inserted into a single limiting groove 10 via mounting bolt 18. The angle of the clamping component 4b can be adjusted by ±15° by adjusting the position of the bolts within the annular groove. Figure 1 To meet the positioning requirements of complex cutting paths; the outer wall of the mounting ring 5 is integrally formed with a limiting ring 7, and the inner wall of the limiting ring 7 is provided with insertion holes 8 on both sides. The insertion holes 8 are filled with fixing bolts 9. The outer wall of the top side of the mounting base 17 is filled with mounting bolts 18, and the bottom end of the mounting bolts 18 is threaded into one of the limiting grooves 10. The outer walls of the top sides of the mounting base 11 are filled with mounting bolts 12. The mounting bolts 12 facilitate the fixing of the mounting base 11 to the mounting ring 5, and the bottom ends of the two mounting bolts 12 are respectively inserted into the two adjacent limiting grooves 10.

[0038] Working principle: The mounting ring 5 is fixed to the surface of the wire drum through the insertion hole 8 on the limiting ring 7 and the fixing bolt 9, forming a rigid connection base. The integrally formed limiting ring 7 can disperse assembly stress and avoid local deformation. The limiting grooves 10 in the mounting groove 6 are distributed in a ring array. Clamping component 1 4a is inserted into two adjacent limiting grooves 10 through mounting bolt 12, and clamping component 2 4b is inserted into a single limiting groove 10 through mounting bolt 2 18. By adjusting the position of the bolts in the ring groove, the angle adjustment of clamping component 4 ± 15° can be achieved to meet the positioning requirements of complex cutting paths. The elastic clamping of clamping component 1 4a is adjusted by the preload of the compression spring 14: rotating the limiting bolt 13 changes the preload of the compression spring 14. The compression spring 14 pushes the pressure plate 16 downwards, causing the pressure plate 16 to contact the electrode wire and apply an adjustable clamping force of 5-20N. During high-frequency vibration, the pressure spring 14 absorbs vibration energy through elastic deformation, preventing loosening caused by rigid collision between the pressure plate 16 and the electrode wire. The coil spring 21 outside the mounting pin 19 in the clamping assembly 4b generates radial elastic deformation when the pressure plate 20 clamps the electrode wire, forming bidirectional damping and suppressing the lateral swing of the electrode wire. By rotating the threaded connection of the mounting pin 15 or the mounting pin 29, the contact distance between the pressure plate 16, the pressure plate 20 and the electrode wire can be finely adjusted to accommodate molybdenum or copper wires with different diameters of 0.1-0.3mm.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A spring-loaded wire clamping assembly, comprising a wire spool (1) and a wire clamping component (2), characterized in that, The wire clamp (2) is disposed outside the wire spool (1). The wire clamp (2) includes an installation component (3). The outer wall of one side of the installation component (3) is provided with a clamping component (4). The clamping component (4) is divided into a clamping component one (4a) and a clamping component two (4b). The clamping component one (4a) includes a mounting base one (11). The outer wall of one side of the mounting base one (11) is threaded with a mounting pin one (15), and a pressure plate one (16) is sleeved on one end of the mounting pin one (15). The outer wall of one side of the top of the mounting base one (11) is threaded with a limit bolt (13), and a compression spring (14) is installed at the bottom end of the limit bolt (13) through a bolt. The bottom end of the compression spring (14) is in contact with the pressure plate one (16). The clamping assembly 2 (4b) includes a mounting base 2 (17), on which a mounting pin 2 (19) is threadedly connected to one side of the outer wall of the mounting base 2 (17), and a pressure plate 2 (20) is sleeved on one end of the mounting pin 2 (19). A coil spring (21) is sleeved on the outside of the mounting pin 2 (19), and one end of the coil spring (21) is in contact with the pressure plate 2 (20).

2. The spring clamp wire assembly according to claim 1, characterized in that, The mounting component (3) includes a mounting ring (5), and a mounting groove (6) with an annular structure is provided on one side of the outer wall of the mounting ring (5), and a plurality of limiting grooves (10) are provided on one side of the inner wall of the mounting groove (6).

3. A spring-loaded wire clamp assembly according to claim 2, characterized in that, The mounting ring (5) has an integrally formed limiting ring (7) on one side of its outer wall, and the limiting ring (7) has insertion holes (8) on both sides of its inner wall, with fixing bolts (9) inserted into the insertion holes (8).

4. A spring-loaded wire clamp assembly according to claim 2, characterized in that, Mounting bolt 2 (18) is inserted into the outer wall of the top side of the mounting base 2 (17), and the bottom end of mounting bolt 2 (18) is threaded into one of the limiting grooves (10).

5. A spring-loaded wire clamp assembly according to claim 2, characterized in that, Mounting bolts (12) are inserted into the outer walls on both sides of the top of the mounting base (11), and the bottom ends of the two mounting bolts (12) are respectively inserted into the two adjacent limiting grooves (10).

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