Thin-wall cylindrical workpiece heat treatment carrier and heat treatment operation method thereof

Abstract

The invention discloses a thin-wall cylindrical workpiece heat treatment carrier and a heat treatment operation method thereof, and belongs to the technical field of heat treatment carriers. A cylindrical workpiece is conveyed into a furnace body through a chain belt type conveying structure to be subjected to heat treatment, and meanwhile gas in a piston assembly is heated by heat in the furnace body to generate expansion; when the transmission gear is in meshed transmission with the toothed bar, the reciprocating motion assembly drives the piston assembly to move up and down, so that the piston assembly drives the transmission drum and the bevel strip to move downwards, the bevel strip drives the roller structure to roll, the cylindrical workpiece can be lifted to be separated from the limiting bracket, the shielding surface is reduced, and heat treatment operation of the cylindrical workpiece is facilitated; the transmission drum drives the roller structure to roll through the oblique angle strip, so that the roller structure rolls to drive the cylindrical workpiece to move up and down, and the contact point of the roller structure and the cylindrical workpiece can be changed, so that the cylindrical workpiece can be subjected to sufficient heat treatment operation, the cylindrical workpiece is directly put on the limiting bracket to be limited, and the feeding and discharging operation is convenient and rapid.

Description

Technical Field

[0001] The present invention relates to the technical field of heat treatment carriers, and in particular to a heat treatment carrier for thin-walled cylindrical workpieces and a heat treatment operation method therefor. Background Art

[0002] The heat treatment of metal materials is a process of heating metal or alloy workpieces to an appropriate temperature, holding them at this temperature for a certain period of time, and then cooling them at different speeds in different media to control their properties by changing the microscopic structure on the surface or inside of the metal materials. Thin-walled cylindrical workpieces are widely used in components such as high-performance machine tool guides, and their heat treatment quality directly affects the mechanical properties and service life of the components.

[0003] During the heat treatment process, the workpiece is subjected to a complex stress process, and under the combined action of multiple stress fields such as thermal stress, phase transformation stress, and tissue stress, the workpiece deforms. When heat-treating the workpiece, it is generally directly fixed by a fixture or directly placed on the surface of the carrier. Fixing with a fixture requires manual operation, which is not convenient for rapid loading and unloading. Moreover, the parts in contact with the carrier or fixture are in contact for a long time, which easily leads to uneven heating. In addition, the position of the workpiece is generally fixed, and there will be a large difference in the heating effect at different positions. Especially for thin-walled cylindrical workpieces, due to their thin walls or uneven heating, heat treatment deformation is extremely likely to occur, and subsequent processing and adjustment are required. If it cannot be adjusted, it can only be scrapped.

[0004] In view of the above problems, the present invention proposes a heat treatment carrier for thin-walled cylindrical workpieces and a heat treatment operation method therefor. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages that when heat-treating thin-walled cylindrical workpieces, it is generally directly fixed by a fixture or directly placed on the surface of the carrier. Fixing with a fixture requires manual operation, which is not convenient for rapid loading and unloading. Moreover, the parts in contact with the carrier or fixture are in contact for a long time, which easily leads to uneven heating. In addition, the position of the workpiece is generally fixed, and there will be a large difference in the heating effect at different positions. Especially for thin-walled cylindrical workpieces, due to their thin walls or uneven heating, heat treatment deformation is extremely likely to occur, and subsequent processing and adjustment are required. If it cannot be adjusted, it can only be scrapped, and a heat treatment carrier for thin-walled cylindrical workpieces and a heat treatment operation method therefor are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A heat treatment carrier for thin-walled cylindrical workpieces includes a conveying carrier and two transmission components. The conveying carrier is located below the transmission components, and the two transmission components are assembled in a furnace body. A plurality of adjustable heat treatment auxiliary mechanisms are provided on the conveying carrier; The adjustable heat treatment auxiliary mechanism includes a support assembly and a transmission rotating cylinder. The support assembly holds the cylindrical workpiece. A reciprocating motion assembly and a fixed column are connected to the support assembly. The reciprocating motion assembly is transmitted through a conveying carrier and is in transmission connection with two transmission assemblies. The fixed column extends into the transmission rotating cylinder. A spiral groove is formed on the fixed column, and two ball screws are slidably connected in the spiral groove. The two ball screws are fixedly connected to the inner wall of the transmission rotating cylinder. A telescopic assembly is connected below the transmission rotating cylinder. The bottom of the telescopic assembly is connected to the support assembly, and two piston assemblies are connected above the telescopic assembly. The two piston assemblies are connected to the reciprocating motion assembly; Four angled strips are fixedly connected to the outside of the transmission rotating cylinder. Four guiding assemblies are connected to the outside of the transmission rotating cylinder. Four groups of roller structures are connected between the four guiding assemblies. The roller structures correspond to the angled strips in the up and down positions, and the roller structures are attached to the inner wall of the cylindrical workpiece.

[0007] Preferably, the conveying carrier includes a carrier conveying frame, and a chain belt type conveying structure is fixedly installed on the carrier conveying frame.

[0008] Preferably, the transmission assembly includes a mounting frame. A plurality of mounting rods are fixedly connected to one side of the mounting frame, and a toothed rod is fixedly connected to one end of the plurality of mounting rods.

[0009] Preferably, the guiding assembly includes an arc-shaped plate. The same annular plate is fixedly connected to the bottoms of a plurality of arc-shaped plates. A T-shaped sliding groove is formed on the arc-shaped plate, and a T-shaped sliding bar is slidably connected in the T-shaped sliding groove. The T-shaped sliding bar is fixedly connected to the transmission rotating cylinder; The number of each group of roller structures is two, and the two roller structures are rotatably connected between the two arc-shaped plates.

[0010] Preferably, the support assembly includes a mounting base frame. The mounting base frame is installed on the chain belt type conveying structure. The mounting base frame is fixedly connected to the fixed column. Four limiting brackets are fixedly connected to the mounting base frame. The annular plate is rotatably installed on the four limiting brackets through bearings.

[0011] Preferably, the telescopic assembly includes a fixed disk. The transmission rotating cylinder is rotatably installed on the fixed disk through a bearing. A plurality of telescopic rods are fixedly connected to the fixed disk, and one end of the plurality of telescopic rods is fixedly connected to the mounting base frame.

[0012] Preferably, the piston assembly includes a piston cylinder. A sealing plug is arranged inside the piston cylinder. A piston rod is fixedly connected to the sealing plug. The two piston rods penetrate out of the piston cylinder and are fixedly connected to the fixed disk. A return spring is fixedly connected to the sealing plug, and one end of the return spring is fixedly connected to the inner wall of the piston cylinder.

[0013] Preferably, the reciprocating motion component includes a transmission crankshaft, the middle part of the transmission crankshaft is rotatably mounted on a fixed column through a bearing, both ends of the transmission crankshaft are rotatably mounted on two limit brackets through bearings, and both ends of the transmission crankshaft are fixedly connected with transmission gears, which are meshed with the gear rod.

[0014] Preferably, the transmission crankshaft is slidably arranged in two rounded corner frames, and the rounded corner frames are fixedly connected to the piston cylinder.

[0015] A heat treatment operation method of a thin-walled cylindrical workpiece heat treatment carrier comprises the following steps: S1. When heat treating a cylindrical workpiece, the cylindrical workpiece is placed on a limiting bracket, and then the cylindrical workpiece is transported into the furnace body by a chain-belt conveying structure to perform heat treatment on the cylindrical workpiece; S2. After the cylindrical workpiece enters the furnace body, the piston cylinder also enters the furnace body. At this time, the heat of the furnace body heats the gas in the upper cavity of the piston cylinder. The gas expands due to the heat and drives the sealing plug to move downward. The sealing plug drives the piston rod to move downward. The piston rod drives the fixed plate and the transmission drum to move downward, so that the transmission drum drives the bevel bar to move downward. The bevel bar contacts the roller structure downward, so that the roller structure rolls and drives the cylindrical workpiece to move upward and leave the limit bracket. S3. After the cylindrical workpiece is separated from the limiting bracket, the cylindrical workpiece continues to be transported, so that the transmission gear is meshed with the gear rod, the transmission gear drives the transmission crankshaft to rotate, and the transmission crankshaft moves up and down through the rounded frame, so that the rounded frame drives the telescopic assembly to move up and down through the piston assembly, and the telescopic assembly drives the transmission drum to move up and down, so that the transmission drum drives the cylindrical workpiece to move up and down through the bevel bar and the roller structure, and the transmission drum drives the ball rod to move up and down, so that the ball rod slides in the spiral groove, and through the arc surface design of the spiral groove, the ball rod drives the transmission drum to rotate, and at this time the cylindrical workpiece rotates to perform heat treatment operations; S4. After the cylindrical workpiece is output from the furnace body, the heat-treated cylindrical workpiece is taken out, and the adjustable heat treatment auxiliary mechanism is then transported to the bottom of the chain-belt conveying structure and refluxed to the initial position, and then the cylindrical workpiece is continuously put in, and the heat treatment operation of the cylindrical workpiece is circulated.

[0016] Compared with the prior art, the present invention provides a thin-walled cylindrical workpiece heat treatment carrier and a heat treatment operation method thereof, which has the following beneficial effects: 1. The heat treatment carrier for thin-walled cylindrical workpieces and the heat treatment operation method thereof use a chain-belt conveying structure to convey the cylindrical workpiece into the furnace body for heat treatment. At the same time, the gas inside the piston assembly is heated by the heat inside the furnace body to expand, so that the piston assembly drives the transmission drum and the bevel bar to move downward, and the bevel bar drives the roller structure to roll, which can lift the cylindrical workpiece out of the limit bracket, reduce the obstruction surface, and facilitate the heat treatment operation of the cylindrical workpiece. When the transmission gear and the gear rod are meshed for transmission, the reciprocating motion assembly drives the piston assembly and the transmission drum to move up and down, and the transmission drum drives the roller structure to roll through the bevel bar, so that the roller structure drives the cylindrical workpiece to move up and down by rolling, which can change the contact point between the roller structure and the cylindrical workpiece, so that the cylindrical workpiece can be fully heat treated, and the cylindrical workpiece is directly placed on the upper limit of the limit bracket, making the loading and unloading operations convenient and fast.

[0017] 2. The heat treatment carrier for thin-walled cylindrical workpieces and the heat treatment operation method thereof, through the meshing transmission of the reciprocating motion component and the gear rod, the reciprocating motion component drives the piston component and the telescopic component to move up and down, and the transmission drum moves up and down, and then the transmission drum can drive the cylindrical workpiece to move up and down through the cooperation of the bevel bar and the roller structure, and at the same time, the transmission drum drives the ball rod to slide in the spiral groove, and the ball rod drives the transmission drum to rotate through the arc surface of the spiral groove, and then the cylindrical workpiece can be rotated and moved up and down, and then the position of the cylindrical workpiece can be changed, so that the cylindrical workpiece is heated evenly, and the heat treatment effect of the cylindrical workpiece is improved.

[0018] 3. The heat treatment carrier for thin-walled cylindrical workpieces and the heat treatment operation method thereof heat the gas inside the piston assembly through the heat inside the furnace body, so that the gas expansion can drive the transmission drum to move through the piston assembly and the telescopic assembly, so that the transmission drum drives the cylindrical workpiece to separate from the limiting bracket through the bevel bar and the roller structure. After the reciprocating motion assembly and the transmission assembly are transmitted, the piston assembly drives the telescopic assembly and the transmission drum to move up and down, so that the roller structure rolls and drives the cylindrical workpiece to move up and down, and the transmission drum drives the ball rod to move up and down. The arc surface of the ball rod and the spiral groove can drive the transmission drum to rotate, thereby causing the cylindrical workpiece to rotate. This method can change the contact position between the roller structure and the cylindrical workpiece, and at the same time realize the up and down movement and rotation of the cylindrical workpiece, so that the heating of the cylindrical workpiece is more uniform, there is no heating shielding point or dead angle, it is not easy to deform, and the processing quality of the cylindrical workpiece is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional view of a heat treatment carrier for a thin-walled cylindrical workpiece proposed by the present invention; Figure 2 A three-dimensional view of a conveying carrier of a thin-walled cylindrical workpiece heat treatment carrier proposed by the present invention; Figure 3Stereoscopic view of an adjustable heat treatment auxiliary mechanism for a heat treatment carrier of a thin-walled cylindrical workpiece proposed by the present invention; Figure 4 Stereoscopic view of the connection between the transmission component and the reciprocating motion component of a heat treatment carrier for a thin-walled cylindrical workpiece proposed by the present invention; Figure 5 Stereoscopic view of the cross-section of an adjustable heat treatment auxiliary mechanism for a heat treatment carrier of a thin-walled cylindrical workpiece proposed by the present invention; Figure 6 Stereoscopic view of the top view of the guiding component of a heat treatment carrier for a thin-walled cylindrical workpiece proposed by the present invention; Figure 7 Stereoscopic view of the cross-section of the supporting component of a heat treatment carrier for a thin-walled cylindrical workpiece proposed by the present invention; Figure 8 Stereoscopic cross-sectional view of the connection between the transmission rotating cylinder and the telescopic component of a heat treatment carrier for a thin-walled cylindrical workpiece proposed by the present invention; Figure 9 In the present invention Figure 8 Enlarged view of part A; Figure 10 Stereoscopic cross-sectional view of the connection between the reciprocating motion component and the piston component of a heat treatment carrier for a thin-walled cylindrical workpiece proposed by the present invention.

[0020] In the figure: 100, conveying carrier; 101, carrier conveying frame; 102, chain belt conveying structure; 200, adjustable heat treatment auxiliary mechanism; 201, supporting component; 2011, installation base frame; 2012, limiting bracket; 202, reciprocating motion component; 2021, transmission crankshaft; 2022, rounded frame; 2023, transmission gear; 203, guiding component; 2031, arc plate; 2032, T-shaped sliding groove; 2033, T-shaped sliding bar; 204, transmission rotating cylinder; 205, bevel bar; 206, piston component; 2061, piston cylinder; 2062, sealing plug; 2063, return spring; 2064, piston rod; 207, ball screw; 208, telescopic component; 2081, telescopic rod; 2082, fixed disk; 209, spiral groove; 210, fixed column; 211, roller structure; 212, annular plate; 300, transmission component; 301, installation frame; 302, installation rod; 303, toothed rod; 400, cylindrical workpiece. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0023] Embodiment 1: Refer to Figures 1 - 10 , a heat treatment carrier for thin-walled cylindrical workpieces, comprising a conveying carrier 100 and two transmission components 300. The conveying carrier 100 is located below the transmission components 300. The conveying carrier 100 includes a carrier conveying frame 101, and a chain belt conveying structure 102 is fixedly installed on the carrier conveying frame 101. The position of the chain belt conveying structure 102 can be fixed through the carrier conveying frame 101, so that the chain belt conveying structure 102 can convey the cylindrical workpiece 400 into the furnace body, thereby facilitating the heat treatment of the cylindrical workpiece 400. At the same time, the adjustable heat treatment auxiliary mechanism 200 is circulated and refluxed through the chain belt conveying structure 102, so as to meet the cyclic heat treatment operation of the cylindrical workpiece 400, and at the same time, the continuous processing operation of the cylindrical workpiece 400 can be realized. And the two transmission components 300 are assembled in the furnace body. The transmission component 300 includes a mounting frame 301. One side of the mounting frame 301 is fixedly connected with a plurality of mounting rods 302. The mounting frame 301 is installed in the furnace body, and the rack 303 is connected through the mounting rods 302, so that the position of the rack 303 is given to you at the bottom of the valley, and the rack 303 corresponds to the transmission gear 2023. One end of the plurality of mounting rods 302 is fixedly connected with the rack 303. A plurality of adjustable heat treatment auxiliary mechanisms 200 are arranged on the conveying carrier 100; The adjustable heat treatment auxiliary mechanism 200 includes a support assembly 201 and a transmission drum 204. The support assembly 201 holds the cylindrical workpiece 400. The support assembly 201 includes a mounting base frame 2011 which is mounted on the chain belt type conveying structure 102. The mounting base frame 2011 is fixedly connected to the fixed column 210. Four limit brackets 2012 are fixedly connected to the mounting base frame 2011. The cylindrical workpiece 400 can be placed through the limit brackets 2012 to keep the cylindrical workpiece 400 stable. The annular plate 212 is rotatably mounted on the four limit brackets 2012 through bearings. The annular plate 212 can rotate smoothly through the bearings, so that the arc-shaped plate 2031 can maintain stable rotation. A reciprocating motion assembly 202 and a fixed column 210 are connected to the support assembly 201. The reciprocating motion assembly 202 is transmitted with two transmission assemblies 300 through the conveying carrier 100. The fixed column 210 extends into the transmission drum 204. A spiral groove 209 is formed on the fixed column 210. Two ball screw rods 207 are slidably connected in the spiral groove 209. The two ball screw rods 207 are fixedly connected to the inner wall of the transmission drum 204. A telescopic assembly 208 is connected below the transmission drum 204. The telescopic assembly 208 includes a fixed disk 2082. The transmission drum 204 is rotatably mounted on the fixed disk 2082 through bearings. The transmission drum 204 can be connected to the fixed disk 2082 through bearings to ensure the stability of the transmission drum 204. At the same time, the transmission drum 204 can rotate smoothly through the bearings. A plurality of telescopic rods 2081 are fixedly connected to the fixed disk 2082. The telescopic rods 2081 can perform telescopic motion smoothly, so that the fixed disk 2082 and the transmission drum 204 can move up and down smoothly. One end of the plurality of telescopic rods 2081 is fixedly connected to the mounting base frame 2011. The bottom of the telescopic assembly 208 is connected to the support assembly 201. And two piston assemblies 206 are connected above the telescopic assembly 208. The piston assembly 206 includes a piston cylinder 2061. A sealing plug 2062 is arranged inside the piston cylinder 2061. The upper cavity of the piston cylinder 2061 is filled with gas. And the part of the piston rod 2064 passing through the piston cylinder 2061 is sealed to prevent gas leakage. And the gas can drive the sealing plug 2062 to move smoothly when heated. A piston rod 2064 is fixedly connected to the sealing plug 2062. The two piston rods 2064 pass through the piston cylinder 2061 and are fixedly connected to the fixed disk 2082. A return spring 2063 is fixedly connected to the sealing plug 2062. The sealing plug 2062 can be driven to complete reset smoothly through the return force. One end of the return spring 2063 is fixedly connected to the inner wall of the piston cylinder 2061. The two piston assemblies 206 are connected to the reciprocating motion assembly 202. The reciprocating motion assembly 202 includes a transmission crankshaft 2021. The middle part of the transmission crankshaft 2021 is rotatably mounted on the fixed column 210 through bearings. The transmission crankshaft 2021 can rotate smoothly through the bearings. Both ends of the transmission crankshaft 2021 are rotatably mounted on the two limit brackets 2012 through bearings,Both ends of the transmission crankshaft 2021 are fixedly connected with transmission gears 2023. The transmission gears 2023 are engaged with the toothed rod 303. By walking on the toothed rod 303 and engaging with the toothed rod 303, the transmission gears 2023 can drive the transmission crankshaft 2021 to achieve rotational motion. The transmission crankshaft 2021 is slidably arranged in two rounded frames 2022. The openings on the rounded frames 2022 can provide a moving space for the transmission crankshaft 2021, enabling the transmission crankshaft 2021 to rotate smoothly. At the same time, the transmission crankshaft 2021 can smoothly drive the rounded frames 2022 to move up and down. The rounded frames 2022 are fixedly connected with the piston cylinder 2061; Four bevel strips 205 are fixedly connected to the outside of the transmission rotating cylinder 204. Four guiding components 203 are connected to the outside of the transmission rotating cylinder 204. The guiding component 203 includes an arc-shaped plate 2031. The bottoms of a plurality of arc-shaped plates 2031 are fixedly connected with the same annular plate 212. A T-shaped sliding groove 2032 is formed in the arc-shaped plate 2031. The T-shaped sliding bar 2033 can be guided through the T-shaped sliding groove 2032, enabling the T-shaped sliding bar 2033 to slide smoothly up and down along the T-shaped sliding groove 2032, so that the transmission rotating cylinder 204 moves smoothly up and down. The T-shaped sliding bar 2033 is slidably connected in the T-shaped sliding groove 2032, and the T-shaped sliding bar 2033 is fixedly connected with the transmission rotating cylinder 204. The number of each group of roller structures 211 is two. The roller structures 211 can roll on the arc-shaped plate 2031. The rolling of the roller structures 211 can drive the cylindrical workpiece 400 to move up and down. And the two roller structures 211 are rotatably connected between the two arc-shaped plates 2031. The four guiding components 203 are connected by four groups of roller structures 211. The roller structures 211 and the bevel strips 205 are corresponding in the up and down positions. The bevel surface of the bevel strip 205 is arranged so that the roller structures 211 can smoothly walk onto the bevel strip 205. And the up and down movement of the bevel strip 205 can drive the cylindrical workpiece 400 to move up and down through the roller structures 211. And when the transmission rotating cylinder 204 rotates, the cylindrical workpiece 400 can be indirectly rotated. The roller structures 211 are attached to the inner wall of the cylindrical workpiece 400.

[0024] In this embodiment: The cylindrical workpiece 400 is conveyed into the furnace body by the chain belt conveying structure 102 for heat treatment operations. At the same time, the gas inside the piston cylinder 2061 is heated by the heat inside the furnace body and expands, causing the sealing plug 2062 to drive the piston rod 2064 to move. The piston rod 2064 drives the transmission rotating cylinder 204 to move downward through the telescopic assembly 208, causing the transmission rotating cylinder 204 to drive the bevel bar 205 to move downward, and the bevel bar 205 drives the roller structure 211 to roll, which can lift the cylindrical workpiece 400 off the limit bracket 2012, reducing the shielding area and facilitating the heat treatment operation of the cylindrical workpiece 400. And when the transmission gear 2023 meshes with the toothed rod 303 for transmission, at this time, the transmission gear 2023 drives the transmission crankshaft 2021 to rotate, and the transmission crankshaft 2021 drives the rounded corner frame 2022 to move up and down. The rounded corner frame 2022 drives the piston assembly 206 and the telescopic assembly 208 to move up and down, causing the transmission rotating cylinder 204 to move up and down. The transmission rotating cylinder 204 drives the roller structure 211 to roll through the bevel bar 205, and the roller structure 211 drives the cylindrical workpiece 400 to move up and down, thereby changing the contact point between the roller structure 211 and the cylindrical workpiece 400, so that the cylindrical workpiece 400 can be fully heat-treated. Moreover, the cylindrical workpiece 400 is directly placed on the limit bracket 2012 for limiting, making the loading and unloading operations convenient and fast.

[0025] Embodiment 2: Refer to Figure 4 and Figures 8 - 10 , a heat treatment carrier for thin-walled cylindrical workpieces, including a reciprocating motion assembly 202. The reciprocating motion assembly 202 includes a transmission crankshaft 2021. The middle of the transmission crankshaft 2021 is rotatably installed on the fixed column 210 through a bearing. Both ends of the transmission crankshaft 2021 are rotatably installed on two limit brackets 2012 through bearings. Both ends of the transmission crankshaft 2021 are fixedly connected with transmission gears 2023. The transmission gears 2023 are meshed with the toothed rod 303. The transmission crankshaft 2021 is slidably arranged in two rounded corner frames 2022. The rounded corner frames 2022 are fixedly connected with the piston cylinder 2061; The piston assembly 206 includes a piston cylinder 2061. A sealing plug 2062 is arranged inside the piston cylinder 2061. A piston rod 2064 is fixedly connected to the sealing plug 2062. Two piston rods 2064 pass through the piston cylinder 2061 and are fixedly connected to the fixed disk 2082. A return spring 2063 is fixedly connected to the sealing plug 2062. One end of the return spring 2063 is fixedly connected to the inner wall of the piston cylinder 2061; The transmission assembly 300 includes a mounting frame 301. One side of the mounting frame 301 is fixedly connected with a plurality of mounting rods 302. One ends of the plurality of mounting rods 302 are fixedly connected with a toothed rod 303. A reciprocating motion assembly 202 and a fixed column 210 are connected to the support assembly 201. A spiral groove 209 is formed in the fixed column 210. Two ball rods 207 are slidably connected in the spiral groove 209. By the rolling of the ball rods 207, the resistance between the ball rods 207 and the spiral groove 209 can be reduced. At the same time, due to the arc surface design of the spiral groove 209, the ball rods 207 can move along the arc surface and rotate, and thus the rotating cylinder 204 can be made to rotate. The two ball rods 207 are fixedly connected to the inner wall of the transmission rotating cylinder 204. Four bevel strips 205 are fixedly connected to the outside of the transmission rotating cylinder 204; In this embodiment: The cylindrical workpiece 400 is conveyed into the furnace body through the chain belt type conveying structure 102, so that the heat inside the furnace body heats the gas inside the piston cylinder 2061. The heated and expanded gas can drive the sealing plug 2062 and the piston rod 2064 to move downward, so that the telescopic assembly 208 drives the transmission rotating cylinder 204 to move downward. The bevel strip 205 drives the roller structure 211 to roll, and lifts the cylindrical workpiece 400 away from the limit bracket 2012. When the transmission gear 2023 meshes with the toothed rod 303 for transmission, the transmission gear 2023 drives the transmission crankshaft 2021 to rotate. The transmission crankshaft 2021 drives the movable frame and the piston cylinder 2061 to move up and down. The piston cylinder 2061 drives the telescopic assembly 208 and the transmission rotating cylinder 204 to move up and down through the piston rod 2064. Furthermore, the transmission rotating cylinder 204 can drive the cylindrical workpiece 400 to move up and down through the cooperation of the bevel strip 205 and the roller structure 211. At the same time, the transmission rotating cylinder 204 drives the ball rods 207 to slide in the spiral groove 209. Then, through the arc surface of the spiral groove 209, the ball rods 207 drive the transmission rotating cylinder 204 to rotate. Thus, the cylindrical workpiece 400 can rotate and move up and down, and further the position of the cylindrical workpiece 400 can be changed, so that the cylindrical workpiece 400 is heated evenly and the heat treatment effect of the cylindrical workpiece 400 is improved.

[0026] Embodiment 3: Refer to Figures 2 - 5 and Figures 7 - 9 A heat treatment carrier for a thin-walled cylindrical workpiece, comprising a conveying carrier 100. The conveying carrier 100 is located below the transmission assembly 300, and two transmission assemblies 300 are assembled in the furnace body. A plurality of adjustable heat treatment auxiliary mechanisms 200 are arranged on the conveying carrier 100; The adjustable heat treatment auxiliary mechanism 200 includes a support assembly 201 and a transmission drum 204. The support assembly 201 lifts the cylindrical workpiece 400. The support assembly 201 is connected with a reciprocating assembly 202 and a fixed column 210. The reciprocating assembly 202 is transmitted by the conveying carrier 100 and the two transmission assemblies 300. The fixed column 210 extends into the transmission drum 204. A spiral groove 209 is provided on the fixed column 210. Two ball rods 207 are slidably connected in the spiral groove 209. The two ball rods 207 are fixedly connected to the inner wall of the transmission drum 204. A telescopic assembly 208 is connected below the transmission drum 204. The bottom of the telescopic assembly 208 is connected to the support assembly 201, and two piston assemblies 206 are connected above the telescopic assembly 208. The two piston assemblies 206 are connected to the reciprocating assembly 202. The transmission drum 204 is fixedly connected to four bevel bars 205 on the outside, and is also connected to four guide assemblies 203 on the outside. The four guide assemblies 203 are connected by four groups of roller structures 211 . The roller structures 211 correspond to the bevel bars 205 in upper and lower positions, and the roller structures 211 are attached to the inner wall of the cylindrical workpiece 400 .

[0027] In this embodiment, the cylindrical workpiece 400 is transported into the furnace body by the transport carrier 100, and the heat inside the furnace body heats the gas inside the piston assembly 206, so that the gas expands and can drive the transmission drum 204 to move through the piston assembly 206 and the telescopic assembly 208, so that the transmission drum 204 drives the cylindrical workpiece 400 to separate from the limiting bracket 2012 through the bevel bar 205 and the roller structure 211. After the reciprocating motion assembly 202 and the transmission assembly 300 are driven, the piston assembly 206 drives the telescopic assembly 208 and the transmission drum 204 to move up and down, so that the roller structure 211 drives the cylindrical workpiece 400 to move up and down. The rolling of the substructure 211 drives the cylindrical workpiece 400 to move up and down, and the transmission drum 204 drives the ball rod 207 to move up and down. The cooperation between the ball rod 207 and the arc surface of the spiral groove 209 can drive the transmission drum 204 to rotate, thereby causing the cylindrical workpiece 400 to rotate. This method can change the contact position between the roller structure 211 and the cylindrical workpiece 400, and at the same time realize the up and down movement and rotation of the cylindrical workpiece 400, so that the cylindrical workpiece 400 is heated more evenly, there is no heating obstruction point or dead angle, it is not easy to deform, and the processing quality of the cylindrical workpiece 400 is improved.

[0028] A heat treatment operation method for a thin-walled cylindrical workpiece heat treatment carrier comprises the following steps: S1. When performing heat treatment on the cylindrical workpiece 400, the cylindrical workpiece 400 is placed on the limiting bracket 2012, and then the cylindrical workpiece 400 is transported into the furnace body by the chain belt conveying structure 102, so that the cylindrical workpiece 400 is subjected to heat treatment; S2. After the cylindrical workpiece 400 enters the furnace body, the piston cylinder 2061 also enters the furnace body. At this time, the heat of the furnace body heats the gas in the upper cavity of the piston cylinder 2061. The gas expands due to the heat and drives the sealing plug 2062 to move downward. The sealing plug 2062 drives the piston rod 2064 to move downward. The piston rod 2064 drives the fixed plate 2082 and the transmission drum 204 to move downward, so that the transmission drum 204 drives the bevel bar 205 to move downward. The bevel bar 205 contacts the roller structure 211 downward, so that the roller structure 211 rolls and drives the cylindrical workpiece 400 to move upward and leave the limiting bracket 2012. S3. After the cylindrical workpiece 400 is separated from the limiting bracket 2012, the cylindrical workpiece 400 continues to be transported, so that the transmission gear 2023 is meshed with the gear rod 303, and the transmission gear 2023 drives the transmission crankshaft 2021 to rotate, and the transmission crankshaft 2021 moves up and down through the rounded frame 2022, so that the rounded frame 2022 drives the telescopic assembly 208 to move up and down through the piston assembly 206, and the telescopic assembly 208 drives the transmission drum 204 to move up and down, so that the transmission drum 204 drives the cylindrical workpiece 400 to move up and down through the bevel bar 205 and the roller structure 211, and the transmission drum 204 drives the ball rod 207 to move up and down, so that the ball rod 207 slides in the spiral groove 209, and through the arc surface design of the spiral groove 209, the ball rod 207 drives the transmission drum 204 to rotate, and at this time, the cylindrical workpiece 400 rotates to perform heat treatment operation; S4. After the cylindrical workpiece 400 is output from the furnace body, the heat-treated cylindrical workpiece 400 is taken out, and the adjustable heat treatment auxiliary mechanism 200 is then transported to the bottom of the chain-belt conveying structure 102, and flows back to the initial position, and then the cylindrical workpiece 400 continues to be put in, and the heat treatment operation of the cylindrical workpiece 400 is circulated.

Claims

1. A heat treatment carrier for thin-walled cylindrical workpieces, comprising a conveying carrier (100) and two transmission components (300), characterized in that, The conveying vehicle (100) is located below the transmission assembly (300), and two transmission assemblies (300) are assembled in the furnace body. A plurality of adjustable heat treatment auxiliary mechanisms (200) are arranged on the conveying vehicle (100); The adjustable heat treatment auxiliary mechanism (200) includes a support assembly (201) and a transmission rotating cylinder (204). The support assembly (201) lifts the cylindrical workpiece (400). A reciprocating motion assembly (202) and a fixed column (210) are connected to the support assembly (201). The reciprocating motion assembly (202) is transmitted through the conveying vehicle (100) and is in transmission connection with the two transmission assemblies (300). The fixed column (210) extends into the transmission rotating cylinder (204). A spiral groove (209) is formed on the fixed column (210). Two ball screws (207) are slidably connected in the spiral groove (209). The two ball screws (207) are fixedly connected to the inner wall of the transmission rotating cylinder (204). An expansion and contraction assembly (208) is connected below the transmission rotating cylinder (204). The bottom of the expansion and contraction assembly (208) is connected to the support assembly (201). And two piston assemblies (206) are connected above the expansion and contraction assembly (208). The two piston assemblies (206) are connected to the reciprocating motion assembly (202); Four bevel strips (205) are fixedly connected to the outside of the transmission rotating cylinder (204). Four guiding assemblies (203) are connected to the outside of the transmission rotating cylinder (204). The four guiding assemblies (203) are connected by four groups of roller structures (211). The roller structures (211) and the bevel strips (205) are corresponding in vertical position. The roller structures (211) are attached to the inner wall of the cylindrical workpiece (400).

2. The heat treatment carrier for a thin-walled cylindrical workpiece according to claim 1, characterized in that, The conveying vehicle (100) includes a vehicle conveying frame (101), and a chain belt type conveying structure (102) is fixedly installed on the vehicle conveying frame (101).

3. A heat treatment carrier for a thin-walled cylindrical workpiece according to claim 2, characterized in that, The transmission assembly (300) includes a mounting frame (301). A plurality of mounting rods (302) are fixedly connected to one side of the mounting frame (301). One ends of the plurality of mounting rods (302) are fixedly connected to a toothed rod (303).

4. A heat treatment carrier for a thin-walled cylindrical workpiece according to claim 3, wherein, The guiding assembly (203) includes an arc-shaped plate (2031). The bottoms of a plurality of arc-shaped plates (2031) are fixedly connected to the same annular plate (212). A T-shaped sliding groove (2032) is formed in the arc-shaped plate (2031). A T-shaped sliding strip (2033) is slidably connected in the T-shaped sliding groove (2032). The T-shaped sliding strip (2033) is fixedly connected to the transmission rotating cylinder (204); The number of each group of roller structures (211) is two, and the two roller structures (211) are rotatably connected between the two arc-shaped plates (2031).

5. The heat treatment carrier for a thin-walled cylindrical workpiece according to claim 4, characterized in that, The support assembly (201) comprises a mounting base (2011), the mounting base (2011) being mounted on the chain-belt conveying structure (102), the mounting base (2011) being fixedly connected to a fixed column (210), four limiting brackets (2012) being fixedly connected to the mounting base (2011), and the annular plate (212) being rotatably mounted on the four limiting brackets (2012) via bearings.

6. The heat treatment carrier for a thin-walled cylindrical workpiece according to claim 5, characterized in that, The telescopic assembly (208) comprises a fixed disk (2082), the driving drum (204) is rotatably mounted on the fixed disk (2082) via a bearing, a plurality of telescopic rods (2081) are fixedly connected to the fixed disk (2082), and one end of the plurality of telescopic rods (2081) is fixedly connected to the mounting base (211).

7. A heat treatment carrier for a thin-walled cylindrical workpiece according to claim 6, characterized in that, The piston assembly (206) comprises a piston cylinder (2061), a sealing plug (2062) is arranged inside the piston cylinder (2061), a piston rod (2064) is fixedly connected to the sealing plug (2062), two piston rods (2064) pass through the piston cylinder (2061) and are fixedly connected to the fixed plate (2082), a return spring (2063) is fixedly connected to the sealing plug (2062), and one end of the return spring (2063) is fixedly connected to the inner wall of the piston cylinder (2061).

8. A heat treatment carrier for a thin-walled cylindrical workpiece according to claim 7, characterized in that, The reciprocating motion component (202) comprises a transmission crankshaft (2021), the middle portion of the transmission crankshaft (2021) being rotatably mounted on a fixed column (210) via a bearing, both ends of the transmission crankshaft (2021) being rotatably mounted on two limit brackets (212) via bearings, and both ends of the transmission crankshaft (2021) being fixedly connected with a transmission gear (2023), which meshes with a gear rod (303).

9. A heat treatment carrier for a thin-walled cylindrical workpiece according to claim 8, characterized in that, The driving crankshaft (2021) is slidably disposed in two rounded corner frames (2022), and the rounded corner frames (2022) are fixedly connected to the piston cylinder (2061).

10. The heat treatment operation method of a heat treatment carrier for a thin-walled cylindrical workpiece according to claim 9, characterized in that, The following steps are involved: S1. When performing a heat treatment operation on a cylindrical workpiece (400), the cylindrical workpiece (400) is placed on a limiting bracket (2012), and then the cylindrical workpiece (400) is transported into a furnace body by a chain-belt conveying structure (102), so that the cylindrical workpiece (400) is subjected to a heat treatment operation; S2, after the cylindrical workpiece (400) enters the furnace body, the piston cylinder (2061) also enters the furnace body. At this time, the heat of the furnace body heats the gas in the upper chamber of the piston cylinder (2061). The gas expands due to the heat and drives the sealing plug (2062) to move downward. The sealing plug (2062) drives the piston rod (2064) to move downward. The piston rod (2064) drives the fixed plate (2082) and the transmission rotating cylinder (204) to move downward, so that the transmission rotating cylinder (204) drives the bevel bar (205) to move downward. The bevel bar (205) contacts the roller structure (211) downward, so that the roller structure (211) rolls and drives the cylindrical workpiece (400) to move upward and leave the limiting bracket (2012); S3. After the cylindrical workpiece (400) disengages from the limit bracket (2012), the cylindrical workpiece (400) continues to be conveyed, causing the transmission gear (2023) to engage with the rack (303). The transmission gear (2023) drives the transmission crankshaft (2021) to rotate. The transmission crankshaft (2021) moves up and down through the rounded corner frame (2022), causing the rounded corner frame (2022) to drive the telescopic assembly (208) to move up and down through the piston assembly (206). The telescopic assembly (208) drives the transmission drum (204) to move up and down, causing the transmission drum (204) to drive the cylindrical workpiece (400) to move up and down through the bevel strip (205) and the roller structure (211). Moreover, the transmission drum (204) drives the ball screw (207) to move up and down, causing the ball screw (207) to slide within the spiral groove (209). Due to the arc surface design of the spiral groove (209), the ball screw (207) drives the transmission drum (204) to rotate. At this time, the cylindrical workpiece (400) rotates for heat treatment operations; S4. When the cylindrical workpiece (400) is output from the furnace body, the heat-treated cylindrical workpiece (400) is removed. At this time, the adjustable heat treatment auxiliary mechanism (200) is conveyed to the lower part of the chain belt conveyor structure (102) and returns to the initial position, and then the cylindrical workpiece (400) is continuously placed, and the heat treatment operations of the cylindrical workpiece (400) are carried out in a cycle.

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