Heat treatment device for automobile fasteners

Abstract

The present invention provides a heat treatment device for automobile fasteners, which relates to the technical field of fastener processing and comprises a heat treatment box; a group of long gears are rotatably installed at the rear end of the interior of the heat treatment box, and a telescopic heating cylinder is placed inside the heat treatment box, a group of fasteners are respectively plugged and installed on the mounting seats, and the mounting seats are respectively meshed and transmission-connected with the inner ends of the mounting plates; the present invention has a better uniformity effect on the heat treatment of the fasteners, improves the heat treatment effect of the device on the fasteners, and the device is convenient for adjusting the spacing between the mounting plates on two adjacent groups of mounting frames according to the different specifications and lengths of the fasteners, so that the device has better adjustability, improves the installation adaptability of the device to fasteners of different specifications and lengths and the space utilization rate of the internal heat treatment when the device is in use; solves the problems that the uniformity of the heat treatment of the fasteners by the device is poor, which easily affects the heat treatment effect of the device on the fasteners, and the adjustability of the device is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of fastener processing, in particular to a heat treatment device for automobile fasteners. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening connections and are extremely widely used. Fasteners are used in a wide range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, molds, and hydraulics. They are used in various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, meters, and supplies. You can see a variety of fasteners. They are the most widely used mechanical basic parts. Fasteners are needed in the production process of automobiles. Generally, heat treatment is required in the production process of automobile fasteners. Heat treatment is one of the important processes in the production of automobile fasteners. Heat treatment refers to a metal heat processing process in which the material is heated, kept warm, and cooled in a solid state to obtain the expected structure and performance. Compared with other processing technologies, heat treatment can improve the intrinsic quality of automobile fasteners during production.

[0003] A heat treatment device for automotive fasteners can refer to Patent No. CN202122727155.3, which mainly includes a base and a mesh belt furnace. The base is equipped with a material guide table on the left side of the mesh belt furnace, a material guide trough is provided on the top of the material guide table, and a plurality of installation openings are spaced apart at the inner bottom of the material guide trough. A feed pipe is installed in each installation opening, and a mesh belt on the base is provided below the horizontal ends of the multiple feed pipes. An intermittent material blocking mechanism matching the multiple feed pipes is installed on the left side of the material guide table, and a material distribution mechanism is installed above the horizontal ends of the multiple feed pipes. The present application can separate and disperse the fasteners on the mesh belt through two-stage screening and distribution, greatly reducing the stacking of fasteners on the mesh belt, ensuring that the fasteners fed into the mesh belt furnace via the mesh belt can be heated evenly, thereby ensuring that the quality of fasteners in the same batch can be maintained at a high level.

[0004] As for the existing heat treatment devices for automotive fasteners, the devices do not perform heat treatment uniformly on the fasteners, which easily affects the heat treatment effect of the devices on the fasteners. In addition, the devices are not adjustable, making it difficult to adjust the distance between adjacent upper and lower groups of fasteners according to the different specifications and lengths of the fasteners. This also leads to poor space utilization for internal heat treatment when the devices are in use. Summary of the Invention

[0005] In view of this, the present invention provides a heat treatment device for automotive fasteners, which has an annular frame and a mounting seat, so that the device has a better uniformity in the heat treatment of the fasteners, effectively improving the heat treatment effect of the device on the fasteners. When the annular frame of the device moves up and down driven by the mounting frame, the external gears on the top of different annular frames are always engaged and connected with the long gears at the rear end of the heat treatment box, so that the device has better linkage.

[0006] The present invention provides a heat treatment device for automobile fasteners, which specifically includes a heat treatment box;

[0007] The rear end of the heat treatment box is rotatably installed with a group of long gears, and the top of the heat treatment box is fixedly installed with a group of driving motors, and positioning slots are equidistantly provided in the vertical directions at both ends of the inner side of the heat treatment box, and a box door is rotatably installed at the front side of the heat treatment box, and a group of heaters are fixedly installed on the top of the heat treatment box, and a group of telescopic heating cylinders are installed at the bottom of the heater, and the telescopic heating cylinders are placed inside the heat treatment box. A mounting bracket is slidably installed inside the heat treatment box, and a group of mounting plates are slidably installed on the mounting bracket, and a group of pulling grooves are respectively opened at both ends of the outer side of the mounting bracket, and a group of positioning blocks are respectively slidably installed on the two side ends of the mounting bracket, and the positioning blocks on the two side ends of the mounting bracket are respectively plugged into the positioning slots at both ends of the inner side of the heat treatment box, and a group of annular frames are rotatably installed on the mounting plate, and six groups of mounting seats are rotatably installed on the annular frames in a circular array, and a group of fasteners are respectively plugged into the mounting seats, and the mounting seats are respectively meshed and connected with the inner ends of the mounting plates.

[0008] Furthermore, a group of inner sliders are fixedly installed on both sides of the inner end of the mounting frame, a group of outer slide grooves are opened on both sides of the mounting plate, and the outer slide grooves on both sides of the mounting plate are slidably installed on the inner sliders on both sides of the inner end of the mounting frame.

[0009] Furthermore, a group of connecting blocks are fixedly connected to both ends of the mounting frame, and a group of sliding holes are opened on the connecting blocks. A group of guide rods are fixedly installed at both ends of the interior of the heat treatment box, and the sliding holes on the connecting blocks at both ends of the mounting frame are slidably installed on the guide rods at both ends of the interior of the heat treatment box.

[0010] Furthermore, a group of rotating rings are fixedly installed on the bottom of the mounting seat, and six groups of connecting ring grooves are opened in a circular array inside the annular frame, and the rotating rings at the bottom of the mounting seat are rotatably installed on the connecting ring grooves inside the annular frame.

[0011] Furthermore, a group of lower brackets are fixedly installed at both ends of the front side of the mounting frame, a group of sliding holes are opened on the lower brackets, the outer ends of the positioning blocks are fixedly connected to a group of connecting rods, and the connecting rods at the outer ends of the positioning blocks are slidably installed on the sliding holes of the lower brackets.

[0012] Furthermore, a group of driving gears are fixedly connected to the mounting seat, a group of inner gear rings are fixedly connected to the inner top of the mounting plate, and the inner gear rings at the inner top of the mounting plate are respectively engaged with the driving gears on the six groups of mounting seats.

[0013] Furthermore, a group of hexagonal slots are provided on the top of the mounting seat, the top of the fastener is a hexagonal head, and the hexagonal head on the top of the fastener is plugged and installed on the hexagonal slots provided on the top of the mounting seat.

[0014] Furthermore, a group of inner ring grooves are opened at the inner end of the mounting plate, a group of lower limit rings are fixedly connected to the bottom of the annular frame, and the lower limit rings fixed at the bottom of the annular frame are rotatably mounted on the inner ring grooves at the inner end of the mounting plate.

[0015] Furthermore, a group of limiting columns are fixedly installed on the connecting rod at the outer end of the positioning block, and a group of elastic members are sleeved on the connecting rod, and the inner ends of the elastic members are in contact with the outer end surfaces of the limiting columns on the connecting rod.

[0016] Furthermore, the top of the long gear is fixedly mounted on the transmission shaft of the drive motor, a group of external gears are fixedly mounted on the top of the annular frame, and the external gears on the top of the annular frame are meshed and connected to the long gears at the rear end of the heat treatment box.

[0017] Compared with the prior art, the heat treatment device for automobile fasteners of the present invention has the following beneficial effects:

[0018] The annular frame cooperates with the mounting seat to make the device have a better uniformity in the heat treatment of fasteners, effectively improving the heat treatment effect of the device on the fasteners, and when the annular frame of the device moves up and down under the drive of the mounting frame, the external gears on the top of different annular frames are always engaged with the long gears at the rear end of the heat treatment box body, so that the device has better linkage; the mounting frame makes it easy to adjust the spacing between the mounting plates on the two adjacent groups of mounting frames according to the different specifications and lengths of the fasteners, so that the device has better adjustability, effectively improving the installation adaptability of the device to fasteners of different specifications and lengths and the space utilization rate of the internal heat treatment when the device is in use.

[0019] The cam is secured to the upper edge of the gear train by means of a pinion gear, and the cam is secured to the lower edge of the gear train by means of a pinion gear, so that the cam can be secured to the upper edge of the gear train when the cam is secured.

[0020] In addition, by pulling the two groups of positioning blocks inward, the positioning blocks are disengaged from the positioning grooves at both ends of the inner side of the heat treatment box. After adjusting the mounting frame and the mounting plate thereon up and down to the desired position, the positioning blocks are loosened. Under the action of the elastic parts sleeved on the connecting rod, the positioning blocks at both ends of the mounting frame are respectively inserted and installed in the positioning grooves at both ends of the inner side of the heat treatment box. This makes it easy for the device to adjust the spacing distance between the mounting plates on the two adjacent groups of mounting frames according to the different specifications and lengths of the fasteners, so that the device has better adjustability, effectively improving the installation adaptability of the device to fasteners of different specifications and lengths and the space utilization rate of the internal heat treatment when the device is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0022] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0023] In the attached figure:

[0024] Figure 1 The figure is a front axial schematic diagram of a heat treatment device for automobile fasteners according to the present invention.

[0025] Figure 2 The figure is a front end cross-sectional schematic diagram of the heat treatment device for automobile fasteners of the present invention.

[0026] Figure 3 The present invention is a schematic diagram of the installation of a positioning block of a heat treatment device for automobile fasteners.

[0027] Figure 4 The figure is a side cross-sectional schematic diagram of a heat treatment device for automobile fasteners according to the present invention.

[0028] Figure 5 The present invention is a schematic diagram of the installation of a ring frame of a heat treatment device for automobile fasteners.

[0029] Figure 6 The present invention is a schematic diagram of the assembly and disassembly of a mounting frame of a heat treatment device for automobile fasteners.

[0030] Figure 7 The present invention is a schematic diagram of disassembling and assembling a mounting plate of a heat treatment device for automobile fasteners.

[0031] Figure 8 The present invention is a schematic diagram of the assembly and disassembly of a mounting base of a heat treatment device for automobile fasteners.

[0032] Figure 9 The present invention is a schematic cross-sectional view of a ring frame of a heat treatment device for automobile fasteners.

[0033] Figure 10 The present invention is a schematic cross-sectional view of the installation of a mounting plate of a heat treatment device for automotive fasteners.

[0034] Reference Signs List

[0035] 1. Heat treatment box; 101. Long gear; 1011. Drive motor; 102. Guide rod; 103. Positioning groove; 2. Heater; 201. Telescopic heating tube; 3. Mounting frame; 301. Connecting block; 302. Lower bracket; 303. Positioning block; 3031. Connecting rod; 3032. Limiting column; 304. Elastic member; 305. Inner slider; 4. Mounting plate; 401. Outer slide groove; 402. Inner ring groove; 403. Inner gear ring; 5. Ring frame; 501. Outer gear; 502. Mounting seat; 5021. Hexagonal groove; 5022. Rotating ring; 5023. Drive gear; 503. Connecting ring groove; 504. Lower limit ring; 6. Fasteners. DETAILED DESCRIPTION

[0036] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0037] Please refer to Figures 1 to 10 As shown:

[0038] Embodiment 1: The present invention provides a heat treatment device for automobile fasteners, comprising a heat treatment box 1;

[0039] A set of long gears 101 are rotatably mounted on the rear end of the heat treatment box 1, a set of drive motors 1011 are fixedly mounted on the top of the heat treatment box 1, positioning grooves 103 are equidistantly provided on the vertical directions of the two ends of the inner side of the heat treatment box 1, a box door is rotatably mounted on the front side of the heat treatment box 1, a set of heaters 2 are fixedly mounted on the top of the heat treatment box 1, a set of telescopic heating cylinders 201 are mounted on the bottom of the heater 2, and the telescopic heating cylinders 201 are placed inside the heat treatment box 1, a mounting bracket 3 is slidably mounted inside the heat treatment box 1, and the mounting bracket 3 slides up. A group of mounting plates 4 are rotatably installed, a group of grooves are respectively opened at both ends of the outer side of the mounting frame 3, a group of positioning blocks 303 are respectively slidably installed on both sides of the mounting frame 3, and the positioning blocks 303 on both sides of the mounting frame 3 are respectively plugged and installed on the positioning grooves 103 at both ends of the inner side of the heat treatment box 1, a group of annular frames 5 are rotatably installed on the mounting plate 4, and six groups of mounting seats 502 are rotatably installed on the annular frames 5 in a circular array, and a group of fasteners 6 are respectively plugged and installed on the mounting seats 502, and the mounting seats 502 are respectively engaged and connected with the inner ends of the mounting plate 4.

[0040] Among them, Figures 4 to 10As shown, the top of the long gear 101 is fixedly mounted on the transmission shaft of the drive motor 1011, a group of external gears 501 are fixedly mounted on the top of the annular frame 5, and the external gears 501 at the top of the annular frame 5 are meshed and transmission-connected with the long gear 101 at the rear end of the heat treatment box 1, and a group of rotating rings 5022 are fixedly mounted on the bottom of the mounting seat 502, and the interior of the annular frame 5 is provided with six groups of connecting ring grooves 503 in a circular array, and the rotating rings 5022 at the bottom of the mounting seat 502 are respectively rotatably mounted on the connecting ring grooves 503 inside the annular frame 5, and a group of driving gears 5023 are fixedly connected to the mounting seat 502, and the inner top of the mounting plate 4 is fixedly connected to a group of internal gear rings 403, and the inner gear rings 403 at the inner top of the mounting plate 4 are respectively connected to the six groups of mounting seats The driving gear 5023 on 502 is engaged in transmission connection, the inner end of the mounting plate 4 is provided with a group of inner ring grooves 402, the bottom of the annular frame 5 is fixedly connected with a group of lower limit rings 504, and the lower limit ring 504 fixed at the bottom of the annular frame 5 is rotatably installed on the inner ring groove 402 at the inner end of the mounting plate 4, a group of inner sliders 305 are fixedly installed on both sides of the inner end of the mounting frame 3, and a group of outer slide grooves 401 are respectively provided on both sides of the mounting plate 4, and the outer slide grooves 401 on both sides of the mounting plate 4 are respectively slidably installed on the inner sliders 305 on both sides of the inner end of the mounting frame 3, a group of hexagonal grooves 5021 are provided on the top of the mounting seat 502, the top of the fastener 6 is a hexagonal head, and the hexagonal head on the top of the fastener 6 is plugged and installed on the hexagonal groove 5021 opened on the top of the mounting seat 502;The specific function is that the hexagonal head at the top of the fastener 6 is plugged into the hexagonal groove 5021 opened at the top of the mounting seat 502, and the outer slide grooves 401 on both sides of the mounting plate 4 are slidably installed on the inner sliders 305 on both sides of the inner end of the mounting frame 3, so that the mounting plate 4 of this device and the fastener 6 thereon are easy to disassemble and assemble quickly after the heat treatment is completed, and the lower limit ring 504 fixed at the bottom of the annular frame 5 is rotatably installed on the inner ring groove 402 at the inner end of the mounting plate 4, and after the mounting plate 4 is pushed inward to the inner end of the mounting frame 3, the outer gear 501 at the top of the annular frame 5 is meshed with the long gear 101 at the rear end of the heat treatment box 1. The driving motor 1011 drives the long gear 101 to rotate, which can drive the annular frame 5 and the fastener 6 thereon to rotate, and the rotating ring 5022 at the bottom of the mounting seat 502 The internal gear rings 403 on the top of the mounting plate 4 are respectively rotatably mounted on the connecting ring grooves 503 inside the annular frame 5. The internal gear rings 403 on the top of the mounting plate 4 are meshed and transmission-connected with the drive gears 5023 on the six sets of mounting seats 502. This allows the annular frame 5 to drive the six sets of fasteners 6 to rotate while the mounting seats 502 drive the fasteners 6 to rotate synchronously about their axes. This ensures that the device achieves a more uniform heat treatment effect on the fasteners 6, effectively improving the device's heat treatment effect on the fasteners 6 and preventing uneven heating of the fasteners 6 during heat treatment that affects the device's performance. Furthermore, when the annular frame 5 of the device moves up and down driven by the mounting frame 3, the external gears 501 on the tops of the different annular frames 5 are always meshed and transmission-connected with the long gears 101 at the rear end of the heat treatment chamber 1, providing the device with better linkage.

[0041] Example 2: Based on Example 1, Figure 2 and Figure 3When the handle 302 is unlocked, the handle 303 is unlocked, and the lock 301 is unlocked, so that the handle 3031 can be unlocked. When the fixing plate 303 is in the fixed position, the fixing plate 303 of the fixing plate 303 is locked and the fixing plate 303 is locked.

[0042] Embodiment 3: On the basis of embodiment 1 and embodiment 2, a group of cover plates are further installed on the top of the heat treatment box 1, and the top cover plate of the heat treatment box 1 is fixedly installed on the top of the heat treatment box 1 by four groups of bolts, so that when the device needs to add or maintain the mounting frame 3, it is convenient to quickly disassemble and install the cover plate by removing the bolts on the cover plate, and the sliding holes on the connecting blocks 301 at both ends of the mounting frame 3 are slidably installed on the guide rods 102 at both ends inside the heat treatment box 1, so as to facilitate the installation or maintenance of the mounting frame 3 in the heat treatment box 1, further improving the efficiency of the device in disassembly and maintenance of its internal components, and making it convenient for the device to disassemble and maintain the heater 2 and the telescopic heating tube 201. The telescopic heating tube 201 can also be replaced with a heating nozzle, and the heating nozzle is externally connected to a connecting pipe. A group of electric telescopic rods are installed on the top of the heat treatment box 1, and the heating nozzle is fixedly installed at the bottom of the transmission shaft of the electric telescopic rod.

[0043] Embodiment 4: On the basis of embodiments 1, 2 and 3, the sliding holes on the connecting blocks 301 at both ends of the mounting frame 3 are respectively slidably mounted on the guide rods 102 at both ends of the interior of the heat treatment box 1, and the inner ends of the sliding holes on the connecting blocks 301 can be mounted with balls in a circular array, and the inner ends of the balls are in contact with the outer end surfaces of the guide rods 102 at both ends of the interior of the heat treatment box 1, further improving the smoothness of the mounting frame 3 sliding on the guide rods 102 inside the heat treatment box 1. The rotating ring 5022 at the bottom of the mounting seat 502 is divided into The ring 5022 and the lower limit ring 504 are respectively rotatably mounted on the connecting ring groove 503 inside the ring frame 5, and the lower limit ring 504 fixed at the bottom of the ring frame 5 is rotatably mounted on the inner ring groove 402 at the inner end of the mounting plate 4. The outer walls of the rotating ring 5022 and the lower limit ring 504 can be respectively clamped and mounted with balls, and the outer ends of the balls are respectively in contact with the connecting ring groove 503 inside the ring frame 5 and the inner wall of the inner ring groove 402 at the inner end of the mounting plate 4, effectively improving the smoothness of the rotation of the mounting seat 502 on the ring frame 5 and the ring frame 5 on the mounting plate 4.

[0044] Specific usage and function of this embodiment: In the present invention, the hexagonal head at the top of the fastener 6 is plugged into the hexagonal groove 5021 opened at the top of the mounting seat 502, and the outer slide grooves 401 on both sides of the mounting plate 4 are slidably mounted on the inner sliders 305 on both sides of the inner end of the mounting frame 3, so that the mounting plate 4 of this device and the fastener 6 thereon can be quickly disassembled and assembled after the heat treatment is completed. The lower limit ring 504 fixed at the bottom of the annular frame 5 is rotatably mounted on the inner ring groove 402 at the inner end of the mounting plate 4, and after the mounting plate 4 is pushed inward to the inner end of the mounting frame 3, the outer gear 501 at the top of the annular frame 5 is engaged with the long gear 101 at the rear end of the heat treatment box 1 Transmission connection, the driving motor 1011 drives the long gear 101 to rotate, which can drive the annular frame 5 and the fasteners 6 thereon to rotate, and the rotating ring 5022 at the bottom of the mounting seat 502 is respectively rotatably mounted on the connecting ring groove 503 inside the annular frame 5, and the internal gear ring 403 at the top of the mounting plate 4 is respectively engaged with the driving gear 5023 on the six groups of mounting seats 502 for transmission connection, so that the annular frame 5 drives the six groups of fasteners 6 to rotate while the mounting seat 502 drives the fasteners 6 to rotate synchronously around its axis, so that the device has a better uniformity in the heat treatment of the fasteners 6, effectively improving the heat treatment effect of the device on the fasteners 6, and avoiding The non-device heat treatment of the fastener 6 does not affect the use effect of the device due to uneven heating, and when the annular frame 5 of the device moves up and down under the drive of the mounting frame 3, the outer gear 501 at the top of the different annular frames 5 is always meshed with the long gear 101 at the rear end of the heat treatment box 1, so that the device has better linkage; the sliding holes on the connecting blocks 301 at both ends of the mounting frame 3 are respectively slidably mounted on the guide rods 102 at both ends of the heat treatment box 1, and the connecting rods 3031 at the outer ends of the positioning blocks 303 are respectively slidably mounted on the sliding holes of the lower bracket 302, and the two sets of positioning blocks 303 are pulled inward so that the positioning blocks 303 are respectively engaged with the inner side of the heat treatment box 1. The positioning slots 103 at both ends are disengaged, and after the mounting frame 3 and the mounting plate 4 thereon are adjusted up and down to the desired position, the positioning blocks 303 are loosened. Under the action of the elastic member 304 sleeved and installed on the connecting rod 3031, the positioning blocks 303 at both ends of the mounting frame 3 are respectively inserted and installed on the positioning slots 103 at both ends of the inner side of the heat treatment box 1, so that the device can easily adjust the spacing distance of the mounting plates 4 on the two adjacent groups of mounting frames 3 according to the different specifications and lengths of the fasteners 6, so that the device has better adjustability, effectively improving the device's installation adaptability to fasteners 6 of different specifications and lengths and the space utilization rate of the internal heat treatment when the device is in use.

Claims

1. A heat treatment device for automobile fasteners, comprising a heat treatment box (1); A group of long gears (101) are rotatably mounted on the rear end of the heat treatment box (1), a group of driving motors (1011) are fixedly mounted on the top of the heat treatment box (1), positioning grooves (103) are equidistantly provided at both ends of the inner side of the heat treatment box (1) in the vertical direction, a box door is rotatably mounted on the front side of the heat treatment box (1), a group of heaters (2) are fixedly mounted on the top of the heat treatment box (1), a group of telescopic heating tubes (201) are mounted on the bottom of the heaters (2), and the telescopic heating tubes (201) are placed inside the heat treatment box (1), characterized in that: The interior of the heat treatment box (1) is slidably mounted with a mounting frame (3), a group of mounting plates (4) are slidably mounted on the mounting frame (3), a group of pull grooves are respectively opened at both ends of the outer side of the mounting frame (3), a group of positioning blocks (303) are slidably mounted on both sides of the mounting frame (3), and the positioning blocks (303) at both sides of the mounting frame (3) are respectively plugged and mounted on the positioning grooves (103) at both ends of the inner side of the heat treatment box (1), a group of annular frames (5) are rotatably mounted on the mounting plate (4), and the annular frames (5) are rotatably mounted on the mounting plate (4). Six groups of mounting seats (502) are rotatably mounted on the frame (5) in a circular array, and a group of fasteners (6) are respectively plugged and mounted on the mounting seats (502), and the mounting seats (502) are respectively meshed and connected with the inner ends of the mounting plates (4); the top of the long gear (101) is fixedly mounted on the transmission shaft of the drive motor (1011), and a group of external gears (501) are fixedly mounted on the top of the annular frame (5), and the external gears (501) on the top of the annular frame (5) are connected to the heat treatment box. (1) The long gear (101) at the rear end is meshed and connected to the transmission; a group of driving gears (5023) is fixedly connected to the mounting seat (502), and a group of internal gear rings (403) are fixedly connected to the top of the mounting plate (4), and the internal gear rings (403) at the top of the mounting plate (4) are respectively meshed and connected to the driving gears (5023) on the six groups of mounting seats (502); a group of hexagonal slots (5021) are opened on the top of the mounting seat (502), and the fastener (6) is fixedly connected to the mounting seat (502). The top is a hexagonal head, and the hexagonal head on the top of the fastener (6) is plugged into the hexagonal slot (5021) opened on the top of the mounting seat (502); a group of lower brackets (302) are fixedly installed at both ends of the front side of the mounting frame (3), and a group of sliding holes are opened on the lower bracket (302); the outer end of the positioning block (303) is fixedly connected to a group of connecting rods (3031), and the connecting rods (3031) at the outer end of the positioning block (303) are respectively slidably installed on the sliding holes of the lower bracket (302).

2. The heat treatment device for automotive fasteners according to claim 1, characterized in that: A group of rotating rings (5022) are fixedly mounted on the bottom of the mounting seat (502), and six groups of connecting ring grooves (503) are provided in a circular array inside the annular frame (5), and the rotating rings (5022) at the bottom of the mounting seat (502) are rotatably mounted on the connecting ring grooves (503) inside the annular frame (5).

3. The heat treatment device for automotive fasteners according to claim 1, characterized in that: A group of inner ring grooves (402) are formed at the inner end of the mounting plate (4), a group of lower limiting rings (504) are fixedly connected to the bottom of the annular frame (5), and the lower limiting rings (504) fixed at the bottom of the annular frame (5) are rotatably mounted on the inner ring grooves (402) at the inner end of the mounting plate (4).

4. The heat treatment device for automotive fasteners according to claim 1, characterized in that: A group of inner slide blocks (305) are fixedly mounted on both sides of the inner end of the mounting frame (3), and a group of outer slide grooves (401) are respectively opened on both sides of the mounting plate (4), and the outer slide grooves (401) on both sides of the mounting plate (4) are respectively slidably mounted on the inner slide blocks (305) on both sides of the inner end of the mounting frame (3).

5. The heat treatment device for automotive fasteners according to claim 1, characterized in that: A group of connecting blocks (301) are fixedly connected at both ends of the mounting frame (3), and a group of sliding holes are opened on the connecting blocks (301). A group of guide rods (102) are fixedly installed at both ends of the interior of the heat treatment box (1), and the sliding holes on the connecting blocks (301) at both ends of the mounting frame (3) are slidably installed on the guide rods (102) at both ends of the interior of the heat treatment box (1).

6. The heat treatment device for automotive fasteners according to claim 1, characterized in that: A group of limiting columns (3032) are fixedly mounted on the connecting rod (3031) at the outer end of the positioning block (303), and a group of elastic members (304) are sleeved and mounted on the connecting rod (3031), with the inner ends of the elastic members (304) contacting the outer end surfaces of the limiting columns (3032) of the connecting rod (3031).

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