Stress relieving mechanism for rod stem shrinking processing

Abstract

The utility model relates to the technical field of stem shrinking processing, in particular to a stress relieving mechanism for bar stem shrinking processing, which comprises a transmission part, a connecting part and a connecting part, the conveying device is used for conveying bars; the stress relieving part is used for heating the shrunk stem end of the bar to relieve stress; the motor is arranged on the transmission part, and the transmission part comprises a rack; the transmission chain structure is arranged on the machine frame and comprises at least one group of chains; the vertical lugs are arranged along the two sides of the periphery of the chain; the partition plates are arranged on the vertical lugs; the chain wheel is connected with the chain; the rotating shaft is connected with the chain wheel. By means of an assembly composed of the transmission part, the stress relieving part and the motor, a set of end stress relieving mechanism is provided after stem shrinking machining of the metal bar, stress at the end of the bar or the pipe subjected to cold compression diameter reducing treatment is released, residual stress generated by cold compression stem shrinking of the end of the bar or the pipe is reduced, and the use performance and stability of materials are improved.

Description

Technical Field

[0001] This utility model relates to the field of bar reduction processing technology, specifically to a stress relief mechanism for bar reduction processing. Background Technology

[0002] Before use, metal bars and tubes are compressed and straightened using a shrinking machine to achieve the required dimensions and specifications. At the same time, excess parts are cut off to achieve the required length and specifications.

[0003] In the current process of bar end shrinking, the bar is subjected to uneven compressive stress, which generates residual stress. This residual stress accumulates in the material, easily leading to material deformation and affecting its performance. Therefore, a stress relief mechanism for bar shrinking is proposed to provide a set of end stress relief mechanisms after the metal bar shrinking process. This mechanism releases the stress at the end of the bar or tube after cold compression shrinking, reduces the residual stress generated by the cold compression shrinking at the end of the bar or tube, and improves the performance and stability of the material. Summary of the Invention

[0004] To address the problems in the existing technology, this utility model provides a stress relief mechanism for bar shrinkage processing. After the metal bar shrinkage processing, a set of end stress relief mechanism is provided to release the stress at the end of the bar or tube after cold compression processing, reduce the residual stress generated by the cold compression at the end of the bar or tube, and improve the performance and stability of the material.

[0005] The technical solution adopted by this utility model to solve its technical problem is a stress relief mechanism for bar wire shrinkage processing, comprising:

[0006] Transmission unit; used for conveying bars;

[0007] The stress relief section is used to heat the constricted ends of the bar to relieve stress.

[0008] The motor is mounted on the transmission unit.

[0009] By adopting the above technical solution, a stress relief mechanism is provided for the end of metal bars after the bar or tube is shaped into a diameter-reducing part. This mechanism releases the stress at the end of the bar or tube after the cold compression process, reduces the residual stress generated by the cold compression at the end of the bar or tube, and improves the performance and stability of the material.

[0010] Specifically, the transmission unit includes:

[0011] frame;

[0012] The transmission chain structure is mounted on the frame.

[0013] Specifically, the transmission chain structure includes:

[0014] At least one set of chains should be installed;

[0015] Eaves are set along both sides of the outer perimeter of the chain;

[0016] A partition is installed on the upright lugs;

[0017] Sprockets are connected to the chain;

[0018] Rotating shaft, connected to sprocket.

[0019] By adopting the above technical solution and through the transmission chain structure with partitions, the ends of bars or tubes can pass through the stress relief section at equal intervals under the drive of the motor.

[0020] Specifically, the stress relief unit includes:

[0021] High-frequency furnace;

[0022] A heating bath is installed on a high-frequency furnace;

[0023] U-shaped induction coils are arranged at equal intervals along the heating tank.

[0024] By adopting the above technical solution, the stress is released by heating the end of the bar's shrinkage section through the stress relief section.

[0025] Specifically, the height of the U-shaped induction coil is the same as the height of the top partition of the chain.

[0026] Specifically, the sprocket meshes with the chain, the rotating shaft is inserted into the center of the sprocket via a key pin, and the drive end of the motor is connected to the rotating shaft at the corresponding position.

[0027] The beneficial effects of this utility model are as follows: Through the assembly consisting of a transmission unit, a stress relief unit, and a motor, a set of end stress relief mechanism is provided for metal rods after the end-shrinking process. This releases the stress at the end of the rod or tube after cold compression, reduces the residual stress generated by the cold compression at the end of the rod or tube, improves the performance and stability of the material, and solves the problem that in the existing rod end-shrinking process, the rod is subjected to uneven extrusion stress, which generates residual stress. This residual stress accumulates in the material, easily leading to material deformation and affecting its performance. Attached Figure Description

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0030] Figure 2This is a schematic diagram of the transmission chain structure of this utility model;

[0031] Figure 3 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0032] Figure 4 For the present utility model Figure 2 Enlarged diagram of point B in the middle.

[0033] In the diagram: 1. Frame; 2. Transmission chain structure; 201. Chain; 202. Lug; 203. Partition; 204. Sprocket; 205. Rotating shaft; 3. Motor; 4. Stress relief section; 401. High frequency furnace; 402. Heating tank; 403. U-shaped induction coil. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0035] To improve the stability of the use of stem-reducing rods, such as Figure 1-3 As shown, the stress relief mechanism for bar wire shrinkage processing according to this utility model includes:

[0036] Transmission unit; used for conveying bars;

[0037] Stress relief section 4 is used to heat the constricted end of the bar to relieve stress;

[0038] Motor 3 is mounted on the transmission unit.

[0039] During use, the stress is released after the metal rod is shrunken through the transmission part, stress relief part 4 and motor 3, which reduces deformation in later use and improves the stability of use.

[0040] For example, such as Figure 1 , 2 As shown, the present invention also includes, the transmission part comprising:

[0041] Rack 1;

[0042] The transmission chain structure 2 is mounted on the frame 1.

[0043] For conveying bars, exemplarily, such as Figure 1 , 2 As shown in Figure 4, this utility model also includes, the transmission chain structure 2 includes:

[0044] Chain 201, at least one set shall be installed;

[0045] Ears 202 are provided along both sides of the outer periphery of chain 201;

[0046] Partition 203 is disposed on the lug 202;

[0047] Sprocket 204 is connected to chain 201;

[0048] Rotating shaft 205 is connected to sprocket 204.

[0049] In use, the rods or tubes that need stress relief treatment after shrinkage are placed on the chain 201 in sequence. The rods are separated at equal distances by the partition 203. After the chain 201 is driven, the ends of the rods pass through the stress relief section 4 in sequence.

[0050] To relieve stress, for example, such as Figure 1 , 3 As shown, the present invention also includes, the stress relief part 4 comprises:

[0051] High-frequency furnace 401;

[0052] Heating tank 402 is mounted on high-frequency furnace 401;

[0053] U-shaped induction coils 403 are arranged at equal intervals along the heating groove 402.

[0054] During use, the U-shaped induction coil 403 sequentially heats the ends of the passing rods rapidly, releasing the residual stress on the rods after cold compression, thereby eliminating or reducing the tendency of the rods to deform and crack.

[0055] For example, such as Figure 3 , 4 As shown, the present invention also includes a U-shaped induction coil 403 whose height is the same as the height of the top partition 203 of the chain 201.

[0056] For active delivery, for example, such as Figure 1 , 2 As shown in Figure 4, the present invention also includes a sprocket 204 meshing with a chain 201, a rotating shaft 205 being inserted into the center of the sprocket 204 via a key pin, and the driving end of the motor 3 being connected to the rotating shaft 205 at the corresponding position.

[0057] In use, the motor 3 drives the rotating shaft 205 at the corresponding position to rotate, causing the sprocket 204 to rotate, thereby enabling the chain 201 that meshes with the sprocket 204 to achieve transmission.

[0058] In use, the rods or tubes that require stress relief after compression are placed sequentially on the chain 201. The rods are separated at equal intervals by the partition 203. The motor 3 drives the rotating shaft 205 at the corresponding position to rotate, causing the sprocket 204 to rotate. The chain 201, which meshes with the sprocket 204, then transmits power. After the chain 201 transmits power, the ends of the rods pass through the stress relief section 4 in sequence. The U-shaped induction coil 403 in the stress relief section 4 rapidly heats the ends of the rods that pass through, releasing the residual stress on the rods after cold compression. This can eliminate or reduce the tendency of the rods to deform and crack.

[0059] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stress relief mechanism for bar stock necking processing, characterized in that, include: Transmission unit; used for conveying bars; The stress relief section (4) is used to heat the constricted end of the bar to relieve stress. The motor (3) is mounted on the transmission unit.

2. The stress relief mechanism for bar wire necking processing according to claim 1, characterized in that, The transmission unit includes: Rack (1); The transmission chain structure (2) is mounted on the frame (1).

3. A stress relief mechanism for bar wire necking processing according to claim 2, characterized in that, The transmission chain structure (2) includes: Chain (201), at least one set; Eaves (202) are provided on both sides of the outer periphery of the chain (201); A partition (203) is provided on the lug (202); A sprocket (204) is connected to a chain (201); The rotating shaft (205) is connected to the sprocket (204).

4. A stress relief mechanism for bar wire necking processing according to claim 3, characterized in that, The stress relief part (4) includes: High-frequency furnace (401); A heating tank (402) is mounted on a high-frequency furnace (401); U-shaped induction coils (403) are arranged at equal intervals along the heating groove (402).

5. A stress relief mechanism for bar sheet shrinkage processing according to claim 4, characterized in that, The height of the U-shaped induction coil (403) is the same as the height of the top partition (203) of the chain (201).

6. A stress relief mechanism for bar sheet shrinkage processing according to claim 5, characterized in that, The sprocket (204) meshes with the chain (201), the rotating shaft (205) is inserted into the center of the sprocket (204) by a key pin, and the drive end of the motor (3) is connected to the rotating shaft (205) at the corresponding position.

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