Heat treatment clamp

Abstract

The utility model discloses a heat treatment clamp which comprises a clamping lower plate, a clamping upper plate and a connecting rod, one end of the connecting rod is connected to the clamping lower plate, the other end of the connecting rod penetrates out of the clamping upper plate, the end, penetrating out of the clamping upper plate, of the connecting rod is matched with a fastening nut in a threaded mode, and the fastening nut abuts against the end face of the clamping upper plate. A clamping groove for containing a heat treatment workpiece is formed between the upper clamping plate and the lower clamping plate, and a positioning assembly is further arranged between the upper clamping plate and the lower clamping plate. The positioning device is simple in structure, can effectively position a heat treatment workpiece, avoids deformation of the workpiece, and has a good using effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of heat treatment fixtures. BACKGROUND

[0002] In the production and manufacturing process of bearing parts, the heat treatment process in the quenching and tempering process is crucial. Through accurate heat treatment, the hardness, toughness and wear resistance of bearing parts can be effectively improved, so as to ensure stable operation under various complex conditions. However, the heat treatment fixture currently used has many problems in actual operation. First, the contact area between the fixture and the part is small, and the part cannot be uniformly forced during heat transfer. This makes the part deform after heat treatment, seriously affecting the dimensional accuracy and shape accuracy of the part, increasing the difficulty and cost of subsequent processing. Second, the fixture itself is also prone to deformation under high-temperature heat treatment environment. This deformation not only interferes with the normal heating of the part, but also causes the cooling speed of each part of the part to be inconsistent during quenching, greatly affecting the quenching quality and making the performance of the part unable to meet the expected standard. Finally, the existing fixture can handle a small number of parts at the same time, which undoubtedly greatly reduces the heat treatment efficiency in mass production, lengthens the production cycle, and is not conducive to improving production efficiency and market competitiveness. SUMMARY

[0003] To overcome the shortcomings of the prior art, the utility model provides a heat treatment fixture, which has a simple structure and can effectively position the heat treatment workpiece, avoiding deformation of the workpiece and having good use effect.

[0004] To achieve the above purpose, the utility model provides a heat treatment fixture, which comprises a clamping lower plate, a clamping upper plate and a connecting rod. One end of the connecting rod is connected to the clamping lower plate, and the other end passes through the clamping upper plate. A threaded nut is screwed onto one end of the connecting rod that passes through the clamping upper plate. The threaded nut abuts against the end face of the clamping upper plate. A clamping groove for accommodating the heat treatment workpiece is formed between the clamping upper plate and the clamping lower plate. A positioning assembly is further provided between the clamping upper plate and the clamping lower plate.

[0005] The beneficial effect of such an arrangement is that in the heat treatment process, the accurate positioning of the workpiece is a key prerequisite to ensure the heat treatment effect. The traditional heat treatment fixture has obvious shortcomings in positioning and cannot effectively ensure the stability of the workpiece in all directions, resulting in uneven quality of the workpiece after heat treatment. The positioning assembly can accurately position the workpiece in the horizontal direction, i.e., the left-right direction, to avoid displacement of the workpiece during heat treatment and ensure uniform heat transfer. At the same time, through the ingenious combination of the clamping lower plate, the clamping upper plate, and the connecting rod and the fastening nut, the workpiece is stably clamped and positioned in the vertical direction, i.e., the up-down direction. When the fastening nut is tightened to tightly press the clamping upper plate against the clamping lower plate, the workpiece in the clamping groove is firmly fixed, eliminating the problem of uneven heating due to up-down movement. This comprehensive and convenient positioning method in the up-down and left-right directions enables the workpiece to be uniformly heated and cooled during heat treatment, greatly improving the heat treatment effect. Not only can the dimensional accuracy and shape accuracy of the workpiece be ensured, but also the stability of product quality can be effectively improved, and the rate of defective products can be reduced.

[0006] As a further arrangement of the utility model, the positioning assembly comprises a positioning plate, a positioning cylinder and an L-shaped fixing plate, the positioning plate is connected to the output end of the positioning cylinder, and the L-shaped fixing plate of the positioning adjusting cylinder is connected to the clamping lower plate.

[0007] The beneficial effect of such an arrangement is that the positioning cylinder serves as a power source to provide stable and controllable driving force for the entire positioning action. When positioning the workpiece, the positioning cylinder can be started to quickly push the positioning plate connected to the output end towards the workpiece. The positioning plate can accurately fit the side surface of the workpiece under the action of the positioning cylinder to position the workpiece in the horizontal direction. The L-shaped fixing plate is connected to the clamping lower plate to provide a stable mounting base for the positioning cylinder, ensuring that the positioning assembly does not shift or shake during operation. This structural design enables the operator to easily complete the positioning work of the workpiece without complex operation procedures. The entire positioning process is smooth, which not only improves work efficiency but also reduces positioning errors caused by improper operation.

[0008] As a further arrangement of the utility model, the positioning assembly comprises a positioning frame and a movable frame, the positioning frame is fixedly connected to the clamping lower plate, the movable frame is in sliding cooperation with the clamping lower plate, a lead screw for driving the movable frame to approach or move away from the positioning frame is rotatably arranged on the clamping lower plate, the lead screw is in threaded cooperation with the movable frame, and a clamping groove for arranging and positioning the heat-treated workpiece is formed between the movable frame and the positioning frame.

[0009] The beneficial effect of such arrangement is that the positioning frame is fixedly connected with the clamping lower plate to form a stable positioning reference. The movable frame is in sliding fit with the clamping lower plate and cooperates with the driving mechanism of the lead screw to realize flexible position adjustment. When facing workpieces of different widths, the operator only needs to rotate the lead screw, and the movable frame will stably approach or move away from the positioning frame due to the threaded fit between the lead screw and the movable frame. In this way, the width of the clamping groove formed between the movable frame and the positioning frame can be accurately adjusted, so as to closely fit workpieces of different width sizes and realize accurate positioning. This design avoids the limitation that the previous clamp can only adapt to single-size workpieces, significantly improves the versatility and practicality of the clamp, greatly improves the work efficiency in actual production, and reduces the equipment replacement cost.

[0010] As a further arrangement of the utility model, the positioning frame and the movable frame are respectively provided with plug-in sockets, the plug-in sockets are provided with plug-in ports, the plug-in ports are provided with stop pieces for supporting the side walls of the heat-treated workpieces, the upper end surfaces of the stop pieces are provided with assembly ports for connecting adjacent stop pieces, and the lower end surfaces of the stop pieces are provided with lower plug-in blocks for plug-in cooperation with the plug-in ports or the assembly ports.

[0011] The beneficial effect of such arrangement is that the stop pieces can be plugged in and out, and when facing heat-treated workpieces of different heights, the operator can plug in and assemble multiple stop pieces according to actual needs, connect the multiple stop pieces in sequence, and increase the support height. This flexible splicing method enables the stop pieces to closely fit the side walls of workpieces of different heights, effectively prevents the workpieces from shaking or moving during heat treatment, greatly improves the stability of clamping and positioning, effectively enhances the adaptability of the clamp, ensures that various workpieces can be heat-treated in a stable clamping state, guarantees product quality, and improves production efficiency.

[0012] As a further arrangement of the utility model, the clamping upper plate is provided with two holding handles.

[0013] The beneficial effect of such arrangement is that when assembling the clamping upper plate, the operator only needs to easily hold the two handles to obtain a stable force application point. This not only makes the operation more convenient, but also effectively avoids installation errors caused by hand slipping, ensures the position stability of the upper plate during the installation process, accurately cooperates with the clamping lower plate, completes the stable clamping of the workpiece, and ensures the smooth progress of the subsequent heat treatment process. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the first embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the second embodiment of the present utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the second embodiment of the present invention. Detailed Implementation

[0018] This utility model provides a first embodiment of a heat treatment fixture, such as... Figures 1 to 2 As shown, the fixture includes a lower clamping plate 1, an upper clamping plate 2, and a connecting rod 3. One end of the connecting rod 3 is connected to the lower clamping plate 1, and the other end protrudes from the upper clamping plate 2. A fastening nut 31 is threaded onto the end of the connecting rod 3 protruding from the upper clamping plate 2, and the fastening nut 31 abuts against the end face of the upper clamping plate 2. A clamping groove for accommodating the heat-treated workpiece is formed between the upper clamping plate 2 and the lower clamping plate 1. A positioning component is also provided between the upper clamping plate 2 and the lower clamping plate 1. The beneficial effect of this design is that accurate workpiece positioning is a crucial prerequisite for ensuring the heat treatment effect in the heat treatment process. Traditional heat treatment fixtures have significant shortcomings in positioning, failing to effectively guarantee the stability of the workpiece in all directions, resulting in inconsistent workpiece quality after heat treatment. The positioning component can accurately position the workpiece in the horizontal direction, i.e., the left-right direction, preventing workpiece displacement during heat treatment and ensuring uniform heat transfer. Meanwhile, the ingenious combination of the lower clamping plate 1, the upper clamping plate 2, the connecting rod 3, and the fastening nut 31 achieves stable clamping and positioning of the workpiece in the vertical direction, i.e., the up-and-down direction. When the fastening nut 31 is tightened, pressing the upper clamping plate 2 firmly against the lower clamping plate 1, the workpiece in the clamping groove is firmly fixed, eliminating the problem of uneven heating caused by up-and-down shaking. This comprehensive and convenient positioning method in both the up-and-down and left-and-right directions allows the workpiece to be heated and cooled evenly during heat treatment, greatly improving the heat treatment effect. It not only ensures the dimensional and shape accuracy of the workpiece but also effectively improves the stability of product quality and reduces the defect rate.

[0019] As a further arrangement of the present embodiment, the positioning assembly comprises a positioning plate 41, a positioning cylinder 4 and an L-shaped fixing plate 42, the positioning plate 41 is connected to the output end of the positioning cylinder 4, and the L-shaped fixing plate 42 of the positioning adjusting cylinder is connected to the clamping lower plate 1. The beneficial effect of such an arrangement is that the positioning cylinder 4 serves as a power source to provide stable and controllable driving force for the entire positioning action. When positioning the workpiece is needed, the positioning cylinder 4 is started, which can quickly push the positioning plate 41 connected to the output end to move towards the workpiece. The positioning plate 41 can accurately fit the side surface of the workpiece under the action of the positioning cylinder 4, realizing the positioning of the workpiece in the horizontal direction. The L-shaped fixing plate 42 is connected to the clamping lower plate 1, providing a stable mounting base for the positioning cylinder 4, ensuring that the positioning assembly does not shift or shake during work. This structural design enables the operator to easily complete the positioning of the workpiece without complex operation procedures. The whole positioning process is completed in one go, which not only improves the work efficiency, but also reduces the positioning error caused by improper operation.

[0020] As a further arrangement of the present embodiment, the clamping upper plate 2 is provided with two holding handles 21. The beneficial effect of such an arrangement is that when assembling the clamping upper plate 2, the operator only needs to easily hold the two handles to obtain a stable force point. This not only makes the operation more convenient, but also effectively avoids installation errors caused by hand slipping, ensuring the position stability of the upper plate during installation, so as to accurately cooperate with the clamping lower plate 1 to complete the stable clamping of the workpiece and ensure the smooth progress of the subsequent heat treatment process.

[0021] The second embodiment of the heat treatment clamp provided by the present utility model comprises a clamping lower plate 1, a clamping upper plate 2 and a positioning assembly, the clamping lower plate 1 is provided with a clamping groove 11, the clamping upper plate 2 is provided with a clamping groove 22, and the clamping groove 11 and the clamping groove 22 are matched to form a clamping space for clamping the workpiece. Figures 3 to 4As shown, it comprises a clamping lower plate 1, a clamping upper plate 2 and a connecting rod 3, one end of which is connected to the clamping lower plate 1 and the other end passes through the clamping upper plate 2, the end of the connecting rod 3 passing through the clamping upper plate 2 is threadedly connected with a fastening nut 31, the fastening nut 31 abuts against the end face of the clamping upper plate 2, a clamping groove for accommodating the workpiece for heat treatment is formed between the clamping upper plate 2 and the clamping lower plate 1, and a positioning assembly is further arranged between the clamping upper plate 2 and the clamping lower plate 1. The beneficial effect of such arrangement is that in the heat treatment process, the accurate positioning of the workpiece is the key prerequisite to ensure the heat treatment effect. The traditional heat treatment fixture has obvious shortcomings in positioning, which cannot effectively ensure the stability of the workpiece in all directions, resulting in uneven quality of the workpiece after heat treatment. The positioning assembly can accurately position the workpiece in the horizontal direction, i.e. left and right direction, to avoid displacement of the workpiece during heat treatment and ensure uniform heat transfer. At the same time, through the ingenious combination of the clamping lower plate 1, the clamping upper plate 2, the connecting rod 3 and the fastening nut 31, the workpiece is stably clamped and positioned in the vertical direction, i.e. up and down direction. When the fastening nut 31 is tightened to tightly press the clamping upper plate 2 against the clamping lower plate 1, the workpiece in the clamping groove is firmly fixed, eliminating the problem of uneven heating due to up and down movement. This comprehensive and convenient positioning method in the up and down and left and right directions enables the workpiece to be uniformly heated and cooled during heat treatment, greatly improving the heat treatment effect. Not only can it ensure the dimensional accuracy and shape accuracy of the workpiece, but also can effectively improve the stability of product quality and reduce the rate of defective products.

[0022] As a further arrangement of the present embodiment, the positioning assembly comprises a positioning frame 7 and a movable frame 6, the positioning frame 7 is fixedly connected with the clamping lower plate 1, the movable frame 6 is slidingly connected with the clamping lower plate 1, a lead screw 5 is rotatably arranged on the clamping lower plate 1 to drive the movable frame 6 to move towards or away from the positioning frame 7, the lead screw 5 is threadedly connected with the movable frame 6, and a clamping groove for arranging and positioning the workpiece for heat treatment is formed between the movable frame 6 and the positioning frame 7. The beneficial effect of such arrangement is that the positioning frame 7 is fixedly connected with the clamping lower plate 1, forming a stable positioning reference. The movable frame 6 is slidingly connected with the clamping lower plate 1 and cooperates with the driving mechanism of the lead screw 5 to realize flexible position adjustment. When facing workpieces of different widths, the operator only needs to rotate the lead screw 5, and due to the threaded connection between the lead screw 5 and the movable frame 6, the movable frame 6 will stably move towards or away from the positioning frame 7. In this way, the width of the clamping groove formed between the movable frame 6 and the positioning frame 7 can be accurately adjusted to closely fit workpieces of different widths, achieving accurate positioning. This design avoids the limitation of previous fixtures that can only adapt to single size workpieces, significantly improving the versatility and practicality of the fixture, greatly improving work efficiency in actual production and reducing equipment replacement costs.

[0023] As a further arrangement of the present embodiment, the positioning frame 7 and the movable frame 6 are respectively provided with a plug-in seat, the plug-in seat is provided with a plug-in port, the plug-in port is inserted with a stop piece 61 for supporting the side wall of the heat treatment workpiece, the upper end face of the stop piece 61 is provided with an assembly port for connecting adjacent stop pieces 61, and the lower end face of the stop piece 61 is provided with a lower plug-in block for plug-in cooperation with the plug-in port or the assembly port. The beneficial effect of such an arrangement is that the stop piece 61 can be plugged and assembled according to actual needs when facing heat treatment workpieces with different heights, and the operator can connect multiple stop pieces 61 in sequence to increase the support height. This flexible splicing method allows the stop piece 61 to closely fit the side wall of workpieces with different heights, effectively preventing the workpiece from shaking or shifting during heat treatment, and greatly improving the stability of clamping and positioning. This effectively enhances the adaptability of the clamp, ensures that various workpieces can be heat treated in a stable clamping state, guarantees product quality, and improves production efficiency.

[0024] As a further arrangement of the present embodiment, the clamping upper plate 2 is provided with two holding handles 21. The beneficial effect of such an arrangement is that when assembling the clamping upper plate 2, the operator only needs to easily hold the two handles to obtain a stable force application point. This not only makes the operation more convenient, but also effectively avoids installation errors caused by hand slipping, ensures the position stability of the upper plate during installation, and accurately cooperates with the clamping lower plate 1 to complete the stable clamping of the workpiece, ensuring the smooth progress of the subsequent heat treatment process.

[0025] The above examples are only one of the preferred specific examples of the present application, and the usual changes and replacements made by those skilled in the art within the scope of the technical solutions of the present application are included in the protection scope of the present application.

Claims

1. A heat treatment fixture, characterized by: The device comprises a clamping lower plate, a clamping upper plate and a connecting rod, one end of the connecting rod is connected to the clamping lower plate, the other end of the connecting rod is arranged through the clamping upper plate, one end of the connecting rod threaded with a fastening nut, the fastening nut is in contact with the end surface of the clamping upper plate, the clamping upper plate and the clamping lower plate form a clamping groove for accommodating the heat treatment workpiece, and a positioning assembly is arranged between the clamping upper plate and the clamping lower plate.

2. The heat treating clamp of claim 1, wherein: The positioning assembly comprises a positioning plate, a positioning cylinder and an L-shaped fixing plate, the positioning plate is connected to the output end of the positioning cylinder, and the L-shaped fixing plate of the positioning adjusting cylinder is connected to the clamping lower plate.

3. The heat treating clamp of claim 1, wherein: The positioning assembly comprises a positioning frame and a movable frame, the positioning frame is fixedly connected to the clamping lower plate, and the movable frame is slidingly connected to the clamping lower plate, a lead screw for driving the movable frame to move close to or away from the positioning frame is arranged on the clamping lower plate, the lead screw is threadedly connected to the movable frame, and a clamping groove for arranging and positioning the heat treatment workpiece is formed between the movable frame and the positioning frame.

4. The heat treating clamp of claim 3, wherein: The positioning frame and the movable frame are respectively provided with a plug-in seat, the plug-in seat is provided with a plug-in port, a stop piece for supporting the side wall of the heat treatment workpiece is inserted into the plug-in port, an assembly port for connecting adjacent stop pieces is arranged on the upper end surface of the stop piece, and a lower plug-in block for plug-in cooperation with the plug-in port or the assembly port is arranged on the lower end surface of the stop piece.

5. The heat treating clamp of claim 1, wherein: Two holding handles are arranged on the clamping upper plate.

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