Fixing device for heat treatment processes
By cooperating with the compression spring and telescopic block of the main clamping assembly, and by adjusting the adjustment frame and threaded rod, dynamic compensation for thermal expansion and multi-point fixation are achieved, solving the problem of fixture positioning offset at high temperatures and improving the stability and accuracy of heat treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞市同运热处理有限公司
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-29
AI Technical Summary
Existing fixtures are prone to thermal expansion or creep in high-temperature environments, which can cause part positioning misalignment that cannot be compensated for, affecting the accuracy and stability of heat treatment.
The compression spring in the main clamping assembly works in conjunction with the telescopic block to achieve dynamic compensation for thermal expansion through the principle of mechanical energy storage. The height of the secondary clamping assembly is adapted by adjusting the adjusting frame and the threaded rod, forming multi-point fixation for stable clamping.
It effectively avoids positioning failure of rigid fixtures due to thermal expansion, ensures stable clamping and precise alignment in high-temperature environments, suppresses creep, and improves the processing accuracy and reliability of heat treatment.
Smart Images

Figure CN224299274U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of heat treatment processing equipment, and specifically to a fixing device for heat treatment processing. Background Technology
[0002] In the high-end manufacturing sector, the mechanical properties and service life of metal parts are highly dependent on the precision of heat treatment processes. Traditional heat treatment technologies in the automotive, hardware, mold, and high-end machinery manufacturing industries encompass processes such as vacuum carburizing and quenching, vacuum nitriding, high-frequency quenching, and deep cryogenic tempering. These technologies are mainly applied to precision parts such as automotive mold steels (e.g., H13, Cr12MoV), high-speed steel cutting tools, and magnetic material components. For example, H13 mold steel requires vacuum carburizing and quenching to improve surface hardness and wear resistance while maintaining core toughness. High-speed steel cutting tools rely on vacuum nitriding to enhance corrosion resistance and service life.
[0003] Existing fixtures mostly use rigid structures, which are prone to thermal expansion or creep in high-temperature environments, causing part positioning to shift, and the shift cannot be compensated for and restored. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a fixing device for heat treatment processing. Through the combined action of the compression spring and the telescopic block in the main clamping assembly, when the workpiece deforms due to heat, the telescopic block undergoes a slight displacement along the concave telescopic groove of the clamping part. The protruding post compresses the compression spring, causing it to deform and store energy. The rebound force of the compression spring acts in the opposite direction on the workpiece through the telescopic block, forming adaptive compensation and forcing the workpiece to return to its original deformation state. This achieves dynamic compensation for thermal expansion through the mechanical energy storage principle, avoiding positioning failure caused by the rigid clamp's inability to deform. The adjustment frame... The threaded rod and nut seat enable vertical height adjustment of the secondary clamping assembly. When the handle at the top of the threaded rod is rotated, the nut seat drives the secondary clamping assembly connected to the threaded rod to move vertically along the sliding part of the support frame, thereby adapting to the clamping requirements of workpieces of different specifications and ensuring that the clamping points of the secondary clamping assembly and the main clamping assembly are precisely aligned. Even if the main clamping fixture experiences slight displacement due to thermal expansion, the adjustment shaft of the secondary clamping assembly drives the clamping part to cooperate with the limiting plate to form a second fixed point. The secondary clamping fixture can still maintain stable clamping of the workpiece to be processed, dispersing the force on the main clamping fixture and further suppressing the creep of the workpiece to be processed during heat treatment.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fixing device for heat treatment includes a mounting base. One end of the mounting base is provided with a main clamping and fixing unit for clamping, fixing, and transferring the workpiece to be processed. A secondary clamping and fixing unit is provided at the feed end of the main clamping and fixing unit for assisting the main clamping and fixing unit in fixing the workpiece to be processed for heat treatment. The secondary clamping and fixing unit includes a support frame on the mounting base, a heat flow sensor on the support frame, a secondary clamping assembly slidably connected to the support frame via an adjusting frame, and a support guide frame on one side of the adjusting frame. The support frame provides a stable support base, the heat flow sensor monitors the quenching intensity, the adjusting frame adjusts the vertical height of the secondary clamping assembly, the support guide frame supports the translation of the workpiece to be processed, and the secondary clamping assembly clamps and fixes the workpiece to be processed.
[0007] The support frame includes a crossbeam and a support column at each end of the crossbeam. The support column is connected to the adjustment frame via a sliding part.
[0008] The adjusting frame also includes a connecting shaft on one side of the sliding part, an adjusting threaded rod connected to the connecting shaft via a nut seat, and a shaft seat at one end of the adjusting threaded rod. The shaft seat is fixedly connected to the mounting base, and the nut seat is connected to the secondary clamping assembly via a threaded screw.
[0009] The auxiliary clamping assembly further includes a side connecting plate at one end of the threaded screw, a mounting plate at one end of the side connecting plate, a limiting plate at the other end of the side connecting plate, an adjusting shaft passing through the mounting plate via a threaded bushing, and a clamping part at one end of the adjusting shaft.
[0010] The secondary clamping and fixing unit further includes at least one sliding support frame disposed on one side of the secondary clamping assembly, which is used to support the translation of the workpiece to be processed.
[0011] The sliding support frame includes a first support seat disposed on the mounting base and a first guide roller rotatably connected to the first support seat via a first ball bearing.
[0012] The main clamping and fixing unit includes a linear drive module mounted on a mounting base, a support and guide assembly mounted on the sliding side of the linear drive module, and a clamping and fixing mechanism mounted on the support and guide assembly. The linear drive module is used to drive the support and guide assembly to move horizontally, the support and guide assembly is used to support the translation of the workpiece to be processed, and the clamping and fixing mechanism is used to clamp and fix the workpiece to be processed.
[0013] The support and guide assembly includes a guide rail on each side of the mounting base, a support plate slidably connected to the guide rail via at least one slider, at least one second support seat on the support plate, and a second guide roller rotatably connected to the second support seat via a second ball bearing.
[0014] The clamping and fixing mechanism includes a fixed seat on each side of the second support seat, a telescopic cylinder passing through the fixed seat, and a main clamping assembly at the output end of the telescopic cylinder. The fixed seat is used to provide a stable support base for the installation of the telescopic cylinder, the telescopic cylinder is used to drive the main clamping assembly to move, and the main clamping assembly is used to clamp and fix the workpiece to be processed by driving the telescopic cylinder.
[0015] The main clamping assembly includes a clamping chamber fixedly connected to the second support base via a hollow connecting pipe, and a clamping part on each side of the clamping chamber. One end of the clamping part is rigidly connected to the output end of the telescopic cylinder. A telescopic block is provided on the clamping part via at least one compression spring. The telescopic block is used to assist the clamping part in clamping the workpiece to be processed.
[0016] The beneficial effects of this utility model are as follows:
[0017] 1. Through the combined action of the compression spring and the telescopic block in the main clamping assembly, when the workpiece to be processed is heated and deformed, the telescopic block generates a small displacement along the concave telescopic groove of the clamping part. The protrusion squeezes the compression spring to deform and store energy. The rebound force of the compression spring acts in the opposite direction on the workpiece to be processed through the telescopic block, forming adaptive compensation and forcing the workpiece to be processed to reset its deformation. The dynamic compensation for thermal expansion is realized through the mechanical energy storage principle, avoiding the positioning failure caused by the rigid fixture's inability to deform.
[0018] 2. The vertical height of the secondary clamping assembly is adjusted by the threaded rod and nut seat of the adjusting frame. When the handle at the top of the adjusting threaded rod is rotated, the nut seat drives the secondary clamping assembly connected to the threaded rod to move vertically along the sliding part of the support frame, thereby adapting to the clamping requirements of workpieces of different specifications and ensuring that the clamping points of the secondary clamping assembly and the main clamping assembly are precisely aligned. Even if the main clamping fixture undergoes slight displacement due to thermal expansion, the adjusting shaft of the secondary clamping assembly drives the clamping part to cooperate with the limiting plate to form a second fixed point. The secondary clamping fixture can still maintain stable clamping of the workpiece to be processed, dispersing the force on the main clamping fixture and further suppressing the creep of the workpiece to be processed during heat treatment. Attached Figure Description
[0019] Figure 1 This is a perspective view of the present invention.
[0020] Figure 2 This is a three-dimensional secondary clamping and fixing unit of the present invention. Figure 1 .
[0021] Figure 3 This is a three-dimensional secondary clamping and fixing unit of the present invention. Figure 2 .
[0022] Figure 4 This is a three-dimensional main clamping and fixing unit of the present invention. Figure 1 .
[0023] Figure 5 This is a three-dimensional main clamping and fixing unit of the present invention. Figure 2 .
[0024] Figure 6 This is a cross-sectional view of the main clamping and fixing unit of this utility model.
[0025] Figure 7 This is an exploded view of the main clamping component of this utility model.
[0026] Explanation of icon numbers:
[0027] 1-Mounting base, 2-Main clamping and fixing unit, 20-Linear drive module, 21-Support guide assembly, 210-Guide rail, 211-Slider, 212-Support plate, 213-Second support base, 214-Second ball bearing, 215-Second guide roller, 22-Clamping and fixing mechanism, 220-Fixing base, 221-Telescopic cylinder, 222-Main clamping assembly, 2220-Hollow connecting pipe, 2221-Clamping chamber, 2222-Clamping part, 22220-Telescopic groove, 22221-Mounting hole, 2223-Compression spring, 2224-Telescopic block, 22240-Protruding post, 3-Secondary clamping and fixing unit. 30-Support frame, 300-Crossbeam, 301-Support column, 31-Heat flow sensor, 32-Adjusting frame, 320-Sliding part, 321-Connecting shaft, 322-Nut seat, 323-Adjusting threaded rod, 324-Shaft seat, 33-Secondary clamping assembly, 330-Threaded screw, 331-Side connecting plate, 332-Mounting plate, 333-Limiting plate, 334-Threaded bushing, 335-Adjusting shaft, 336-Clamping part, 34-Supporting guide frame, 340-Guide support plate, 341-Guide part, 35-Sliding support frame, 350-First support seat, 351-First ball bearing, 352-First guide roller. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings:
[0029] like Figure 1-7As shown, this utility model relates to a fixing device for heat treatment processing, including a mounting base 1. One end of the mounting base 1 is provided with a main clamping and fixing unit 2, which is used to clamp and fix the workpiece to be processed and transfer the workpiece. A secondary clamping and fixing unit 3 is provided at the feed end of the main clamping and fixing unit 2. The secondary clamping and fixing unit 3 is used to assist the main clamping and fixing unit 2 in fixing the workpiece to be processed for heat treatment processing. The secondary clamping and fixing unit 3 includes a support frame 30 provided on the mounting base 1, a heat flow sensor 31 provided on the support frame 30, a secondary clamping assembly 33 slidably connected to the support frame 30 through an adjusting frame 32, and a secondary clamping assembly 33 provided on the adjusting frame 32. The support guide frame 34 on one side provides a stable support base. The heat flow sensor 31 monitors the quenching intensity. The adjustment frame 32 adjusts the vertical height of the secondary clamping assembly 33. The support guide frame 34 supports the translation of the workpiece to be processed. The secondary clamping assembly 33 clamps and fixes the workpiece to be processed. In use, the mounting base 1 is the basic bearing component. The main clamping and fixing unit 2 at its upper end can realize the clamping, fixing and transfer of the workpiece to be processed. The secondary clamping and fixing unit 3 at the feed end of the main clamping and fixing unit 2 plays a key auxiliary fixing role. The support frame 30 in the secondary clamping and fixing unit 3 is mounted on the mounting base 1, which is the main clamping and fixing unit for the entire secondary clamping and fixing unit. The support frame 30 provides a stable foundation; the heat flow sensor 31 is mounted on the support frame 30 to monitor the quenching intensity in real time, providing data support for the heat treatment process and ensuring processing quality. By providing real-time feedback on the flow state and energy input of the quenching medium, the heating power or cooling rate can be dynamically adjusted to avoid excessive expansion or uneven stress in the workpiece due to process fluctuations. By ensuring the stability of heat treatment quality, it indirectly reduces workpiece deformation caused by process malfunction, forming a synergistic effect with the clamping mechanism; the adjusting frame 32 is slidably connected to the support frame 30, allowing for flexible adjustment of the vertical height of the secondary clamping assembly 33 to accommodate workpieces of different specifications; the support guide frame... The auxiliary clamping assembly 33 is located on one side of the adjusting frame 32 to provide stable support for the translation of the workpiece to be processed, ensuring the smoothness of the workpiece transfer process; the auxiliary clamping assembly 33 precisely clamps and fixes the workpiece to be processed, the main clamping and fixing unit 2 transfers the workpiece to be processed to the auxiliary clamping and fixing unit 3, the workpiece to be processed slides along the upper surface of the support guide frame 34, passes through the auxiliary clamping assembly 33 and passes directly below the heat flow sensor 31, when the workpiece to be processed reaches the heat treatment station, the auxiliary clamping assembly 33 quickly fixes it, which not only ensures the stability of the workpiece to be processed during the heat treatment process, but also improves the accuracy and reliability of the processing through the monitoring of the heat flow sensor 31 and the flexible adjustment of the adjusting frame 32.
[0030] like Figure 2-3As shown, the support frame 30 includes a crossbeam 300 and a support column 301 at each end of the crossbeam 300. The support column 301 is connected to the adjustment frame 32 through a sliding part 320. The support guide frame 34 includes a guide plate 340 and a guide part 341 on the guide plate 340. The upper surface of the guide part 341 is concave to form an arc surface. A limiting protrusion is provided on the arc surface. When the workpiece to be processed moves to the support guide frame 34, it is laterally limited by the arc surface and slidably supported by the limiting protrusion.
[0031] like Figure 3 As shown, the adjusting frame 32 also includes a connecting shaft 321 disposed on one side of the sliding part 320, an adjusting threaded rod 323 connected to the connecting shaft 321 via a nut seat 322, and a bearing seat 324 disposed at one end of the adjusting threaded rod 323. The bearing seat 324 is fixedly connected to the mounting base 1. One adjusting frame 32 is installed on each of the two side support columns 301 of the support frame 30. In use, the handles at the upper ends of the adjusting threaded rods 323 on both sides are rotated simultaneously, causing the adjusting threaded rods 323 to rotate around the bearing seat 324. At the same time, the external thread of the adjusting threaded rod 323 and the internal thread of the nut seat 322 are screwed together, and the nut seat 322 is vertically displaced accordingly.
[0032] like Figure 3 As shown, the aforementioned nut seat 322 is connected to both sides of the auxiliary clamping assembly 33 via a threaded screw 330, thereby adjusting the height of the auxiliary clamping assembly 33 according to production needs, and cooperating with the main clamping unit 2 to clamp and fix the workpiece to be processed. The auxiliary clamping assembly 33 also includes a side connecting plate 331 at one end of the threaded screw 330, a mounting plate 332 at one end of the side connecting plate 331, a limiting plate 333 at the other end of the side connecting plate 331, an adjusting shaft 335 passing through the mounting plate 332 via a threaded bushing 334, and a clamping part 336 at one end of the adjusting shaft 335. The two side connecting plates 331, mounting plate 332, and limiting plate 333 are assembled to form the outer frame structure of the auxiliary clamping assembly 33. In use, the handle at one end of the adjusting shaft 335 is rotated to move the adjusting shaft 335 down along the threaded bushing 334, and the workpiece to be processed is fixed by the clamping part 336 cooperating with the limiting plate 333.
[0033] like Figure 2-3 As shown, the secondary clamping and fixing unit 3 also includes at least one sliding support frame 35 disposed on one side of the secondary clamping assembly 33. The sliding support frame 35 is used to support the translation of the workpiece to be processed. The sliding support frame 35 includes a first support seat 350 disposed on the mounting base 1 and a first guide roller 352 rotatably connected to the first support seat 350 via a first ball bearing 351.
[0034] like Figure 1-2As shown in Figures 4-7, the main clamping and fixing unit 2 includes a linear drive module 20 mounted on the mounting base 1, a support guide assembly 21 mounted on the sliding side of the linear drive module 20, and a clamping and fixing mechanism 22 mounted on the support guide assembly 21. The linear drive module 20 is used to drive the support guide assembly 21 to move horizontally, the support guide assembly 21 is used to support the translation of the workpiece to be processed, and the clamping and fixing mechanism 22 is used to clamp and fix the workpiece to be processed.
[0035] like Figure 4-5 As shown, the support guide assembly 21 includes a guide rail 210 on each side of the mounting base 1, a support plate 212 slidably connected to the guide rail 210 via at least one slider 211, at least one second support seat 213 on the support plate 212, and a second guide roller 215 rotatably connected to the second support seat 213 via a second ball bearing 214.
[0036] like Figure 4-5 As shown, the clamping and fixing mechanism 22 includes a fixed base 220 on each side of the second support base 213, a telescopic cylinder 221 passing through the fixed base 220, and a main clamping assembly 222 located at the output end of the telescopic cylinder 221. The fixed base 220 is used to provide a stable support base for the installation of the telescopic cylinder 221. The telescopic cylinder 221 is used to drive the main clamping assembly 222 to move. The main clamping assembly 222 is used to clamp and fix the workpiece to be processed by driving the telescopic cylinder 221.
[0037] like Figure 4-7As shown, the main clamping assembly 222 includes a clamping chamber 2221 fixedly connected to the second support base 213 via a hollow connecting pipe 2220, and a clamping part 2222 on each side of the clamping chamber 2221. One end of the clamping part 2222 is rigidly connected to the output end of the telescopic cylinder 221. A telescopic block 2224 is provided on the clamping part 2222 via at least one compression spring 2223. The telescopic block 2224 is used to assist the clamping part 2222 in clamping the workpiece to be processed. One side of the clamping part 2222 has an inwardly recessed telescopic groove 22220. At least two mounting holes 22221 are provided in the telescopic groove 22220, and the compression spring 2223 is installed in the mounting holes 22221. The side of the telescopic block 2224 that mates with the telescopic groove 22220 has a protrusion 22240 corresponding to the mounting hole 22221. One end of the protrusion 22240 is connected to the telescopic groove 22220. When the compression spring 2223 is in contact with the workpiece, in the relaxed state, the outer side of the telescopic block 2224 that contacts the workpiece should protrude from the surface of the clamping part 2222. When the workpiece is clamped, the telescopic block 2224 slides inward along the telescopic groove 22220 and presses against the compression spring 2223 through the protrusion 22240. The compression spring 2223 deforms, causing the telescopic block 2224 to fit tightly against the workpiece. When the workpiece undergoes thermal expansion or creep due to heat treatment, the workpiece undergoes a slight deformation, causing the workpiece to shift in position. This causes the telescopic block 2224 to also shift, thus forcing the compression spring 2223 to change its deformation. The compression spring 2223 has a self-restoring property. The rebound force of the compression spring 2223 resets the slight deformation, and the shifted workpiece is compensated and restored under the action of the compression spring 2223.
[0038] like Figure 1-7 As shown, the second guide roller 215 of the support guide assembly 21 of the main clamping and fixing unit 2 rolls in contact with the workpiece to be processed. The sliding support frame 35 of the auxiliary clamping and fixing unit 3 is equipped with the first guide roller 352, which transforms the traditional sliding friction into rolling friction, significantly reducing the frictional resistance during the transfer of the workpiece to be processed. The rolling support reduces the local stress concentration caused by friction on the workpiece to be processed, avoiding deformation caused by uneven stress. The low friction environment makes the movement of the workpiece to be processed more stable, suppresses the influence of vibration on the positioning accuracy, and provides a more stable initial state for fixing the workpiece to be processed before heat treatment.
[0039] Working principle: The mounting base 1 serves as a basic support platform. The main clamping and fixing unit 2 mounted on it drives the support guide assembly 21 to move horizontally along the guide rail 210 via the linear drive module 20. The second guide roller 215 mounted on the second support seat 213 of the support guide assembly 21 forms rolling contact with the workpiece to be processed. This, in conjunction with the telescopic cylinder 221 of the clamping and fixing mechanism 22, drives the main clamping assembly 222 to initially clamp and fix the workpiece to be processed. When it is necessary to transfer the workpiece to be processed for heat treatment, The hollow connecting pipe 2220 of the main clamping assembly 222 maintains a rigid connection with the second support base 213. The telescopic cylinder 221 drives the clamping part 2222 to press against the workpiece to be processed. The telescopic block 2224, which is pre-tightened by the compression spring 2223, is in close contact with the surface of the workpiece to be processed. When the workpiece to be processed is heated and undergoes thermal expansion or creep, the telescopic block 2224 generates a small displacement along the telescopic groove 22220 concave in the clamping part 2222. The protrusion 22240 compresses the compression spring 2223 to generate deformation, thereby utilizing... The spring energy storage characteristic is used to achieve adaptive compensation for the deformation of the workpiece to be processed; during the transfer of the workpiece to be processed, the support frame 30 of the secondary clamping and fixing unit 3 forms a stable support frame with the support column 301 through the crossbeam 300. The heat flow sensor 31 set on it monitors the quenching intensity parameters in real time. The connecting shaft 321 of the adjusting frame 32 cooperates with the sliding part 320 of the support column 301; the workpiece to be processed slides smoothly along the first guide roller 352 of the support guide frame 34 and the sliding support frame 35. When it passes through the working area of the secondary clamping assembly 33, a standardized monitoring section is formed directly below the heat flow sensor 31. After reaching the heat treatment station, the nut seat 322 is vertically displaced by rotating the handle at the top of the adjusting threaded rod 323, which drives the secondary clamping assembly 33 connected to the threaded screw 330 to adjust to the height position that matches the specifications of the workpiece to be processed. The adjusting shaft 335 drives the clamping part 336 to feed vertically through the threaded bushing 334, which cooperates with the limiting plate 333 to form a clamping force. The secondary clamping assembly 33 and the main clamping assembly 222 form a cooperative fixation.
[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.
Claims
1. A fixing device for heat treatment processing, comprising a mounting base, characterized in that: One end of the mounting base is provided with a main clamping and fixing unit, which is used to clamp and fix the workpiece to be processed and transfer the workpiece to be processed. A secondary clamping and fixing unit is provided at the feed end of the main clamping and fixing unit. The secondary clamping and fixing unit is used to assist the main clamping and fixing unit in fixing the workpiece to be processed so as to facilitate the heat treatment of the workpiece. The secondary clamping and fixing unit includes a support frame on the mounting base, a heat flow sensor on the support frame, a secondary clamping assembly slidably connected to the support frame through an adjusting frame, and a support guide frame on one side of the adjusting frame. The support frame is used to provide a stable support base, the heat flow sensor is used to monitor the quenching intensity, the adjusting frame is used to adjust the vertical height of the secondary clamping assembly, the support guide frame is used to support the translation of the workpiece to be processed, and the secondary clamping assembly is used to clamp and fix the workpiece to be processed.
2. The fixing device for heat treatment processing according to claim 1, characterized in that: The support frame includes a crossbeam and a support column at each end of the crossbeam. The support column is connected to the adjustment frame via a sliding part.
3. The fixing device for heat treatment processing according to claim 2, characterized in that: The adjusting frame also includes a connecting shaft on one side of the sliding part, an adjusting threaded rod connected to the connecting shaft via a nut seat, and a shaft seat at one end of the adjusting threaded rod. The shaft seat is fixedly connected to the mounting base, and the nut seat is connected to the secondary clamping assembly via a threaded screw.
4. The fixing device for heat treatment processing according to claim 3, characterized in that: The auxiliary clamping assembly further includes a side connecting plate at one end of the threaded screw, a mounting plate at one end of the side connecting plate, a limiting plate at the other end of the side connecting plate, an adjusting shaft passing through the mounting plate via a threaded bushing, and a clamping part at one end of the adjusting shaft.
5. The fixing device for heat treatment processing according to claim 4, characterized in that: The secondary clamping and fixing unit further includes at least one sliding support frame disposed on one side of the secondary clamping assembly, which is used to support the translation of the workpiece to be processed.
6. The fixing device for heat treatment processing according to claim 5, characterized in that: The sliding support frame includes a first support seat disposed on the mounting base and a first guide roller rotatably connected to the first support seat via a first ball bearing.
7. The fixing device for heat treatment processing according to claim 1, characterized in that: The main clamping and fixing unit includes a linear drive module mounted on a mounting base, a support and guide assembly mounted on the sliding side of the linear drive module, and a clamping and fixing mechanism mounted on the support and guide assembly. The linear drive module is used to drive the support and guide assembly to move horizontally, the support and guide assembly is used to support the translation of the workpiece to be processed, and the clamping and fixing mechanism is used to clamp and fix the workpiece to be processed.
8. The fixing device for heat treatment processing according to claim 7, characterized in that: The support and guide assembly includes a guide rail on each side of the mounting base, a support plate slidably connected to the guide rail via at least one slider, at least one second support seat on the support plate, and a second guide roller rotatably connected to the second support seat via a second ball bearing.
9. The fixing device for heat treatment processing according to claim 8, characterized in that: The clamping and fixing mechanism includes a fixed seat on each side of the second support seat, a telescopic cylinder passing through the fixed seat, and a main clamping assembly at the output end of the telescopic cylinder. The fixed seat is used to provide a stable support base for the installation of the telescopic cylinder, the telescopic cylinder is used to drive the main clamping assembly to move, and the main clamping assembly is used to clamp and fix the workpiece to be processed by driving the telescopic cylinder.
10. The fixing device for heat treatment processing according to claim 9, characterized in that: The main clamping assembly includes a clamping chamber fixedly connected to the second support base via a hollow connecting pipe, and a clamping part on each side of the clamping chamber. One end of the clamping part is rigidly connected to the output end of the telescopic cylinder. A telescopic block is provided on the clamping part via at least one compression spring. The telescopic block is used to assist the clamping part in clamping the workpiece to be processed.