Diamond wire spool clamping structure

Abstract

A kind of diamond wire H-shaped wheel clamping structure, including first clamping arm and second clamping arm rotatably connected by pivot;First clamping arm is bent and includes first bent upper portion and first bent lower portion, first shaft hole and first connecting slot;Second clamping arm is bent and includes second bent upper portion and second bent lower portion, second shaft hole and second connecting slot;First connecting slot and second connecting slot are inserted into each other, pivot is connected first clamping arm and second clamping arm after passing through first shaft hole and second shaft hole, first bent upper portion and second bent lower portion are connected by tension spring, second bent upper portion and first bent lower portion are connected by tension spring.The utility model solves the problem that existing diamond wire H-shaped wheel clamping tool needs two hands to operate cooperatively under high-temperature environment of annealing process, is easy to cause personnel scald and low in operating efficiency, and affects product quality and H-shaped wheel service life.

Description

Technical Field

[0001] This utility model belongs to the field of diamond wire manufacturing, and in particular relates to a diamond wire I-beam wheel clamping structure. Background Technology

[0002] In high-precision machining fields such as photovoltaics and semiconductors, diamond wire, as a core cutting consumable, boasts advantages such as high hardness, high cutting efficiency, and low loss due to the diamond microparticles fixed on its surface. It is widely used in the cutting and processing of hard and brittle materials such as monocrystalline silicon, polycrystalline silicon, and sapphire. The preparation process of diamond wire involves several key processes, including electroplating, wire drawing, and annealing. Among these, the annealing process, as the core step in ensuring the mechanical properties of the diamond wire, requires feeding the diamond wire-wound spool (i.e., the cylindrical winding component used to load, unload, and support the diamond wire) into an annealing furnace. Through heat treatment at specific temperatures and times, the internal stress of the diamond wire is eliminated, improving its toughness and fatigue strength. This ensures that the diamond wire is not easily broken during subsequent cutting, guaranteeing processing accuracy and stability.

[0003] In the actual operation of the annealing process, the handling of the I-beams directly affects production efficiency and product quality. Since the annealing furnace typically operates at temperatures reaching several hundred degrees Celsius, the I-beams and the wound diamond wire remain at high temperatures after annealing. Operators must use specialized clamping tools to remove the I-beams from the furnace and transfer them to a cooling station or the next processing stage. Simultaneously, before annealing, the I-beams to be processed must be precisely placed into the designated position in the annealing furnace using clamping tools. Therefore, the rationality and reliability of the clamping tools are key factors restricting the continuity, safety, and product yield of the diamond wire production process.

[0004] However, the diamond wire I-beam clamping tools commonly used in the industry are not easy to operate and have low safety in high-temperature environments. Traditional clamping tools mostly adopt a structure design that requires two-handed operation. For example, both hands are needed to control the opening and closing of the clamping arms or to hold both ends of the tool for positioning. However, there is significant heat radiation around the annealing furnace. Operators' hands are exposed to high-temperature environments for a long time, which not only increases the labor intensity but also makes them very prone to safety accidents such as hand burns, seriously affecting the safety and efficiency of production operations. Utility Model Content

[0005] The purpose of this utility model is to provide a diamond wire I-beam wheel clamping structure to solve the technical problem.

[0006] To achieve the above objectives, the specific technical solution of the diamond wire I-beam wheel clamping structure of this utility model is as follows:

[0007] A diamond wire I-beam clamping structure includes a first clamping arm and a second clamping arm that are rotatably connected via a rotating shaft;

[0008] The first clamping arm is bent and includes a first upper bend and a first lower bend located on both sides of the bend, a first shaft hole provided at the bend for the rotating shaft to pass through, and a first connecting groove provided at the bend along the axial direction of the first shaft hole; the second clamping arm is bent and includes a second upper bend and a second lower bend located on both sides of the bend, a second shaft hole provided at the bend for the rotating shaft to pass through, and a second connecting groove provided at the bend along the axial direction of the second shaft hole.

[0009] The first connecting groove and the second connecting groove are inserted into each other. The rotating shaft passes through the first shaft hole and the second shaft hole and then connects the first clamping arm and the second clamping arm. The upper part of the first bend and the lower part of the second bend are connected by a tension spring. The upper part of the second bend and the lower part of the first bend are connected by a tension spring.

[0010] The lower end of the first bend is provided with a first clamping end that matches the side guard of the I-beam wheel, the upper end of the first bend is provided with a first gripping end, the lower end of the second bend is provided with a second clamping end that matches the side guard of the I-beam wheel, and the upper end of the second bend is provided with a second gripping end. The I-beam wheel is clamped by adjusting the distance between the first clamping end and the second clamping end by operating the first gripping end and the second gripping end.

[0011] As a further improvement of this utility model, the smaller included angle between the upper part of the first bend and the lower part of the first bend is the first bend angle, and the smaller included angle between the upper part of the second bend and the lower part of the second bend is the second bend angle. After the first connecting groove and the second connecting groove are inserted into each other, the upper part of the first bend is located within the second bend angle, and the upper part of the second bend is located within the first bend angle.

[0012] As a further improvement of this utility model, the lower part of the first bend is located on one side inside the first bend angle, the lower part of the second bend is located on one side inside the second bend angle, the upper part of the first bend is opposite to the outer side of the first bend angle, and the upper part of the second bend is opposite to the outer side of the second bend angle, respectively, and a lug for connecting the tension spring is provided.

[0013] As a further improvement of this utility model, the first clamping end and the second clamping end protrude relative to the first bent upper part and the second bent upper part, respectively, to facilitate gripping.

[0014] As a further improvement of this utility model, the first clamping end and the second clamping end are matched with the side blocks at both ends of the I-beam wheel, and extend to both sides along the outer periphery of the side blocks of the I-beam wheel, respectively, relative to the lower part of the first bend and the lower part of the second bend.

[0015] As a further improvement of this utility model, the first clamping end is bent and includes a first clamping part connected to the lower part of the first bend for abutting against the side stop of the I-beam wheel, and a first support part extending from the first clamping part to the cylinder of the I-beam wheel when clamping; the second clamping end is bent and includes a second clamping part connected to the lower part of the second bend for abutting against the side stop of the I-beam wheel, and a second support part extending from the second clamping part to the cylinder of the I-beam wheel when clamping.

[0016] As a further improvement of this utility model, the first bending angle and the second bending angle are greater than or equal to 100° and less than or equal to 150°.

[0017] As a further improvement of this utility model, the first clamping end and the second clamping end are made of copper alloy.

[0018] As a further improvement of this utility model, the tension spring is in a stretched state when clamping the I-beam wheel.

[0019] As a further improvement of this utility model, the first clamping arm and the second clamping arm are limited at both ends of the rotating shaft by shaft end retaining rings.

[0020] Beneficial effects:

[0021] The first and second clamping arms are rotatably connected via a pivot, and both arms are bent. The first and second shaft holes at the bends provide precise assembly channels for the pivot, ensuring high coaxiality and no jamming during rotation. Compared to traditional fixed or multi-part assembled clamping tools, this rotary connection method allows the opening and closing of the clamping ends to be achieved simply by the relative rotation of the two arms around the pivot. There is no need for complicated disassembly or positioning steps. Operators do not need to repeatedly adjust the tool angle to align with the I-beams; they only need to drive the two arms to rotate by the gripping end to quickly open and close the clamping ends, significantly reducing the operational threshold. This is especially suitable for high-frequency I-beam loading and unloading scenarios in annealing processes.

[0022] The upper part of the first bend and the lower part of the second bend, as well as the upper part of the second bend and the lower part of the first bend, are connected by tension springs, forming a symmetrical elastic constraint structure. When the operator applies opposing forces to the first and second gripping ends, the two arms rotate around the pivot, the tension springs are stretched, and the clamping ends open to grip the I-beam. After gripping, the external force is removed, and the return force of the tension springs drives the two arms to rotate in the opposite direction, causing the clamping ends to automatically close and clamp the I-beam. This elastic linkage mechanism avoids the drawback of traditional tools that require continuous force to maintain the clamping state, reducing operator hand fatigue. On the other hand, the continuous clamping force provided by the tension springs can adapt to the side stops of I-beams of different diameters (as long as the side stop dimensions are within the deformation range of the tension springs), eliminating the need for manual adjustment of the clamping force. This ensures that the I-beam will not slip due to insufficient force or be damaged due to excessive force during clamping, improving clamping reliability.

[0023] The bent design of the first and second clamping arms places the clamping end and the gripping end on opposite sides of the bend, creating a reasonable lever arm length. When the operator applies force to the gripping end, the lever arm amplification effect allows for sufficient opening and closing of the clamping end with relatively little hand force, achieving labor-saving operation—especially for the I-beams whose weight increases after annealing. This labor-saving design effectively reduces the physical exertion of the operator per operation and improves continuous work capability. At the same time, the bent structure creates a certain angle between the clamping end and the gripping end. When the operator is operating in front of the annealing furnace, the gripping end can be kept away from the high-temperature area of ​​the furnace opening, allowing only the clamping end to reach into the furnace to retrieve or place the I-beams, reducing contact between the hand and the high-temperature environment and lowering the risk of burns.

[0024] The first connecting groove is axially arranged along the first shaft hole, and the second connecting groove is axially arranged along the second shaft hole. The two connecting grooves are inserted into each other and then connected by a rotating shaft. This groove and shaft mating structure can, on the one hand, form a radial limit during the rotation of the two arms, preventing axial misalignment of the two arms due to uneven force (such as the vertical displacement of the two arms that is prone to occur in traditional rotating shaft connections); on the other hand, the insertion depth of the connecting groove can control the fit of the two arms, reduce the gap between the two arms, avoid shaking or abnormal noise during rotation, and extend the service life of the rotating shaft and shaft hole (reducing wear caused by gaps). Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a diamond wire I-beam wheel clamping structure according to the present invention;

[0026] Figure 2 This is a cross-sectional view of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the first clamping arm and the second clamping arm;

[0028] Explanation of markings in the diagram: 1. First clamping arm; 11. Upper part of the first bend; 111. First gripping end; 12. Lower part of the first bend; 121. First clamping end; 1211. First clamping part; 1212. First support part; 13. First shaft hole; 14. First connecting groove; 2. Second clamping arm; 21. Upper part of the second bend; 211. Second gripping end; 22. Lower part of the second bend; 221. Second clamping end; 23. Second shaft hole; 24. Second connecting groove; 3. Rotary shaft; 31. Rotary shaft retaining ring; 4. Tension spring; 41. Hanging lug; 5. I-beam wheel; 51. Side stop; 52. Cylinder body. Detailed Implementation

[0029] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0030] Implementation example:

[0031] like Figure 1 The diagram illustrates a diamond wire I-beam wheel clamping structure, comprising a first clamping arm 1 and a second clamping arm 2 symmetrically arranged. The two clamping arms are connected at a bend by a pivot 3. The I-beam wheel 5 includes a cylindrical body 52 for collecting diamond wire and side stops 51 disposed on both sides of the cylindrical body 52. ​​The two clamping arms rotate relative to the pivot 3, thereby clamping and releasing the side stops 51 of the I-beam wheel.

[0032] The first clamping arm 1 is bent, and a first shaft hole 13 is provided through the bend along the width direction of the first clamping arm 1. A recessed first connecting groove 14 is formed on the first clamping arm 1 along the axial direction of the first shaft hole 13. The depth of the first connecting groove 14 is half the width of the first clamping arm 1, and it is used to interlock with the second connecting groove 24 to achieve radial limiting of the two clamping arms. Extending from the bend to both sides, a first bend upper part 11 and a first bend lower part 12 are formed, forming a first bend angle of 120°. The bend angle design can ensure that a reasonable lever arm length is formed between the gripping end and the clamping end, making operation easier, and can also avoid stress concentration caused by an excessively small bend angle, thereby improving the structural strength of the clamping arm and preventing breakage after long-term use. After the two clamping arms are connected, the upper part 11 of the first bend is located within the second bend angle, and the upper part 21 of the second bend is located within the first bend angle. The upper part 11 of the first bend and the lower part 22 of the second bend are connected to the upper part 21 of the second bend and the lower part 12 of the first bend by a tension spring. The surface is provided with corresponding lugs 41 for fixing the tension spring 4. The tension spring 4 is made of stainless steel. The two sets of tension springs 4 are the same size. The free length and elastic coefficient can provide sufficient restoring force to ensure that the clamping end can reliably clamp the I-beam wheel, while avoiding excessive elasticity that would cause difficulty in operation. After assembly, the two sets of tension springs 4 are symmetrically distributed on both sides of the rotating shaft. In the natural state, when the I-beam wheel is not clamped, they are in a slightly stretched state, so that the first clamping end 121 and the second clamping end 221 keep the closing tendency. When clamping the I-beam wheel 5, they are in a tensile state, which avoids interference between the tension spring 4 and other parts during deformation, reduces wear, and extends the service life of the tension spring 4.

[0033] The upper part 11 of the first bend is elongated, long enough to ensure that the clamping end can penetrate deep into the annealing furnace. The end away from the bend is the first gripping end 111, which is a hollow rectangle that protrudes to both sides in the width direction relative to the upper part 11 of the first bend. The surface is provided with anti-slip texture to increase the friction between the hand and the gripping end, preventing slippage during high-temperature operation. It is also wrapped with a high-temperature resistant silicone sleeve, which can cover the ambient temperature around the annealing furnace, improving grip comfort and isolating some heat.

[0034] The lower part 12 of the first bend is located on the other side of the bend, and the end away from the bend is the first clamping end 121. The first clamping end 121 has an arc-shaped structure, and the radius of the arc is adapted to the radius of the common diamond wire I-beam wheel side guard 51. The inner surface of the arc is smooth, and the two ends of the arc extend outwards by a certain length relative to the width of the lower part 12 of the first bend, increasing the contact area with the I-beam wheel side guard 51 and dispersing the clamping force. The first clamping end 121 is also bent, consisting of a first clamping part 1211 and a first support part 1212 connected to the lower part 12 of the first bend. The first clamping part 1211 fits and clamps the I-beam wheel side guard 51 through the arc-shaped structure, and the first support part 1212 extends inwards along the arc-shaped side to provide support below the I-beam wheel side guard 51 and stabilize the clamping.

[0035] The second clamping arm 2 has the same structure as the first clamping arm 1. After the first connecting groove 14 and the second connecting groove 24 are fitted together, the rotating shaft passes through the first shaft hole 13 and the second shaft hole 23. The rotating shaft 3 has a cylindrical structure, and its length is adapted to the total width of the two clamping arms, ensuring that after the rotating shaft passes through the two shaft holes, both ends can extend out of the outside of the clamping arms. Both ends of the rotating shaft 3 are provided with annular grooves for installing shaft end retaining rings 31. After the shaft end retaining rings 31 are inserted into the annular grooves, they can restrict the movement of the first clamping arm 1 and the second clamping arm 2 along the axial direction of the rotating shaft 3, preventing the two arms from falling off. The first clamping end 121 and the second clamping end 221 are symmetrically distributed. When the two clamping ends are clamped, they are located in the same circular clamping space, which fits perfectly against the side stop of the I-beam wheel 5. The first clamping end 121 and the second clamping end 221 are made of copper alloy. Compared with traditional high-hardness steel jaws, copper alloy has lower hardness and good ductility. When in contact with the I-beam 5, it can buffer the clamping force through slight deformation, reducing the scratching of the I-beam 5 surface by rigid friction. Especially for I-beams with a protective coating, the copper alloy clamping end can effectively protect the integrity of the coating, avoid corrosion or structural strength reduction caused by coating peeling, extend the service life of the I-beam, and prevent the scraped coating particles from adhering to the diamond wire and affecting the cutting performance.

[0036] In use, the operator holds the first gripping end 111 and the second gripping end 211 with one hand, applying opposing forces to both sides. At this time, the first clamping arm 1 and the second clamping arm 2 rotate relative to each other around the pivot 3. The upper part of the first bend 11 and the upper part of the second bend 21 gradually close, while the lower part of the first bend 12 and the lower part of the second bend 22 simultaneously separate to both sides. The two sets of tension springs 4 contract, and the first clamping end 121 and the second clamping end 221 gradually open. The opening range can be adjusted according to the diameter of the I-beam wheel side guard 51. Align the opened first clamping end 121 and the second clamping end 221 with the I-beam wheel 5 inside the annealing furnace, so that the two clamping ends are respectively attached to the outer side of the I-beam wheel side guard 51, ensuring that the center of the I-beam wheel side guard 51 coincides with the center of symmetry of the two clamping ends. The operator gradually removes the external force applied to the gripping end. The two sets of tension springs 4 release their elastic potential energy, generating a restoring force that drives the first clamping arm 1 and the second clamping arm 2 to rotate in opposite directions around the pivot 3. The first clamping end 121 and the second clamping end 221 close towards the center until they are tightly against the side guard of the I-beam wheel. At this time, the tension springs 4 are still under slight tension, providing continuous clamping force to complete the clamping of the I-beam wheel 5. When releasing the I-beam wheel 5, after transferring it to the cooling station or a designated position, the operator applies opposing forces to the gripping end again, causing the clamping end to open and disengage from the side guard of the I-beam wheel. After removing the external force from both sides of the I-beam wheel 5, the clamping end returns to its original state, ready for the next clamping operation.

[0037] This utility model features a clamping structure where the gripping end is wrapped with a high-temperature resistant silicone sleeve, and the bent arm structure creates an angle between the gripping end and the clamping end. During operation, the gripping end can be kept away from the annealing furnace opening, reducing hand contact with the high-temperature area. Simultaneously, the stainless steel clamping arms and tension springs can withstand the ambient temperature around the annealing furnace, adapting to the high-temperature environment of the I-beam wheel after annealing. The arc-shaped structure of the two clamping ends fits perfectly with the side guards of the I-beam wheel, providing a large contact area and uniform clamping force. Furthermore, the continuous clamping force provided by the tension springs can accommodate minor dimensional errors in the side guards of the I-beam wheel, preventing loosening. In addition, the interlocking design of the first and second connecting grooves prevents misalignment during rotation of the two arms, further improving clamping stability. The entire process of opening, clamping, and releasing can be completed with one hand, eliminating the need for two-handed operation, simplifying the steps, and significantly improving the transfer efficiency of the I-beam wheel in the annealing process.

[0038] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A diamond wire I-beam clamping structure, characterized in that, It includes a first clamping arm and a second clamping arm that are rotatably connected via a pivot. The first clamping arm is bent and includes a first upper bend and a first lower bend located on both sides of the bend, a first shaft hole provided at the bend for the rotating shaft to pass through, and a first connecting groove provided at the bend along the axial direction of the first shaft hole; the second clamping arm is bent and includes a second upper bend and a second lower bend located on both sides of the bend, a second shaft hole provided at the bend for the rotating shaft to pass through, and a second connecting groove provided at the bend along the axial direction of the second shaft hole. The first connecting groove and the second connecting groove are inserted into each other. The rotating shaft passes through the first shaft hole and the second shaft hole and then connects the first clamping arm and the second clamping arm. The upper part of the first bend and the lower part of the second bend are connected by a tension spring. The upper part of the second bend and the lower part of the first bend are connected by a tension spring. The lower end of the first bend is provided with a first clamping end that matches the side guard of the I-beam wheel, the upper end of the first bend is provided with a first gripping end, the lower end of the second bend is provided with a second clamping end that matches the side guard of the I-beam wheel, and the upper end of the second bend is provided with a second gripping end. The I-beam wheel is clamped by adjusting the distance between the first clamping end and the second clamping end by operating the first gripping end and the second gripping end.

2. The diamond wire I-beam clamping structure according to claim 1, characterized in that, The smaller angle between the upper part of the first bend and the lower part of the first bend is the first bend angle, and the smaller angle between the upper part of the second bend and the lower part of the second bend is the second bend angle. After the first connecting groove and the second connecting groove are inserted into each other, the upper part of the first bend is located within the second bend angle, and the upper part of the second bend is located within the first bend angle.

3. The diamond wire I-beam clamping structure according to claim 2, characterized in that, The lower part of the first bend is located on one side inside the first bend angle, the lower part of the second bend is located on one side inside the second bend angle, and the upper part of the first bend is provided with a lug for connecting the tension spring opposite to the outside of the first bend angle and the upper part of the second bend is provided opposite to the outside of the second bend angle.

4. The diamond wire I-beam clamping structure according to claim 1, characterized in that, The first clamping end and the second clamping end protrude relative to the upper part of the first bend and the upper part of the second bend, respectively, for easy gripping.

5. The diamond wire I-beam clamping structure according to claim 1, characterized in that, The first clamping end and the second clamping end are matched with the side blocks at both ends of the I-beam wheel, and extend to both sides along the outer periphery of the side blocks of the I-beam wheel, respectively, relative to the lower part of the first bend and the lower part of the second bend.

6. The diamond wire I-beam clamping structure according to claim 5 or 1, characterized in that, The first clamping end is bent and includes a first clamping part connected to the lower part of the first bend for abutting against the side stop of the I-beam wheel, and a first support part extending from the first clamping part to the cylinder of the I-beam wheel when clamping. The second clamping end is bent and includes a second clamping part connected to the lower part of the second bend for abutting against the side guard of the I-beam wheel, and a second support part extending from the second clamping part to the cylinder of the I-beam wheel when clamping.

7. The diamond wire I-beam clamping structure according to claim 2, characterized in that, The first bending angle and the second bending angle are greater than or equal to 100° and less than or equal to 150°.

8. The diamond wire I-beam clamping structure according to claim 1, characterized in that, The first clamping end and the second clamping end are made of copper alloy.

9. The diamond wire I-beam clamping structure according to claim 1, characterized in that, The tension spring is in a stretched state when clamping the I-beam wheel.

10. The diamond wire I-beam clamping structure according to claim 1, characterized in that, The first clamping arm and the second clamping arm are limited at both ends of the rotating shaft by shaft end retaining rings.

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