Annealing method and device for copper workpiece

Abstract

The invention relates to the field of metal processing, in particular to an annealing method and device for a copper workpiece. Existing equipment is not uniform enough in heating of copper alloy parts, so that the annealing effect of the copper alloy parts is not good enough. The invention discloses an annealing method and device for a copper workpiece. The device comprises a shell, an annealing furnace, a high-temperature exhaust valve HE top cover and the like. An annealing furnace is fixedly connected to the shell, a high-temperature exhaust valve is fixedly connected to the bottom of the annealing furnace, and a top cover is clamped to the top of the annealing furnace. The pressing frame is pressed downwards to extrude the heating guns and clamp the heating guns together with the moving frame, the moving frame continues to drive the heating guns to move, the distances between the heating guns and the parts are the same, workers start the heating guns and the high-temperature exhaust valve, the heating guns spray high-temperature flames after being started, and due to the fact that the distances between the heating guns and the parts are the same, the heating guns can be heated. And high-temperature flames of the heating guns enable the parts to be uniformly heated, so that the annealing effect of the parts is better.

Description

Technical Field

[0001] The invention relates to the field of metal processing, and in particular to an annealing method and device for a copper workpiece. Background Art

[0002] Some copper alloy parts are non-standard products. Non-standard products refer to products or equipment that are not manufactured in accordance with the unified industry standards and specifications promulgated by the state, but are designed and manufactured by themselves according to their own needs, and their appearance or performance is not included in the national equipment product catalog.

[0003] The copper alloy parts of non-standard products have different shapes, resulting in different distances between the copper alloy parts and the heat source in different directions, which in turn causes the heat source to heat the copper alloy parts unevenly, and the heating of some copper alloy parts with more prominent anisotropic characteristics is even more uneven. Furthermore, the copper alloy parts are placed on the bottom plate, which easily causes the bottom of the copper alloy parts to heat slowly, which in turn causes the copper alloy parts to heat even less evenly, resulting in poor annealing effect of the copper alloy parts. Summary of the invention

[0004] In order to overcome the shortcomings of existing equipment that the copper alloy parts are not heated uniformly, resulting in poor annealing effect of the copper alloy parts, the present invention provides a method and device for annealing copper workpieces, which can make the distance between each heat source and the copper alloy parts the same, and quickly heat the bottom of the copper alloy parts, so that the copper alloy parts are heated uniformly as a whole, thereby achieving better annealing effect of the copper alloy parts.

[0005] The technical solution of the present invention is: an annealing method and device for a copper workpiece, comprising a shell, an annealing furnace, a high-temperature exhaust valve, a top cover, a thermal sensor, a bottom plate, a guide mechanism, a moving mechanism and a retracting mechanism, the shell being fixedly connected to the annealing furnace, the bottom of the annealing furnace being fixedly connected to the high-temperature exhaust valve, the top cover being clamped on the top of the annealing furnace, a plurality of thermal sensors being fixedly connected inside the annealing furnace, a bottom plate being placed in the annealing furnace, air guide holes being opened on the bottom plate, parts being placed on the bottom plate, a guide mechanism being provided on the annealing furnace, the guide mechanism being used to limit the movement of a heat source, a moving mechanism being provided on the annealing furnace and the guide mechanism, the moving mechanism being used to drive the guide mechanism to move, a retracting mechanism being provided on the guide mechanism and the moving mechanism, the retracting mechanism being used to drive the heat source to retract.

[0006] Furthermore, a plurality of hooks are provided on the bottom plate.

[0007] Furthermore, the guiding mechanism includes a fixed rod, a movable frame, a heating gun and a connecting block. Six fixed rods are fixedly connected to the outside of the annealing furnace, and the six fixed rods are evenly distributed. Each fixed rod is slidably connected to a movable frame, and each movable frame has six guide grooves. Three heating guns are slidably connected to the six guide grooves of each movable frame, and each heating gun is fixedly connected to a connecting block.

[0008] Furthermore, the moving mechanism includes a fixed frame, an electric push rod, a lower pressure ring, a guide frame, a driving frame and a connecting spring. Two fixed frames are fixedly connected to the annealing furnace, and an electric push rod is fixedly connected to each fixed frame. A lower pressure ring is fixedly connected between the telescopic rods of the two electric push rods, and six guide frames are fixedly connected to the lower pressure ring. Each guide frame has a guide groove, and each fixed rod is slidably connected to a driving frame, and each driving frame is slidably connected to the guide groove of each guide frame, and each driving frame is fixedly connected to three connecting blocks on the same moving frame with a connecting spring.

[0009] Furthermore, the retraction mechanism includes a guide rod, a guide rod, a pressure frame, a contact block and an elastic plate. Each movable frame is fixedly connected to a guide rod, each guide frame is fixedly connected to a guide rod, each guide rod is provided with a guide groove, and the guide groove of each guide rod is slidingly connected to each guide rod respectively. Each movable frame is slidably connected to a pressure frame, each pressure frame is in contact with three heating guns on the same movable frame, each pressure frame is fixedly connected to a contact block, each contact block is provided with an inclined surface, and six elastic plates are fixedly connected to the outer wall of the annealing furnace.

[0010] Furthermore, the surface of the press frame is a rough surface.

[0011] Furthermore, it also includes a circulation mechanism, which is used for circulating hot air. The circulation mechanism includes a guide ring, a guide plate, a sealing ring, a rotating fan blade, a pushing fan blade and an air guide hood. The guide ring is fixedly connected to the inner wall of the annealing furnace, the guide plate is fixedly connected to the top cover, the guide plate is in contact with the guide ring, the sealing ring is fixedly connected to the bottom plate, the sealing ring is in contact with the guide ring, the rotating fan blade is rotatably connected to the top cover, the pushing fan blade is fixedly connected to the rotating fan blade, the air guide hood is fixedly connected to the top cover, two through holes are opened on the air guide hood, and the pushing fan blade is located in the air guide hood.

[0012] Furthermore, it also includes a rotating roller, and each elastic plate is rotatably connected to the rotating roller.

[0013] Furthermore, it also includes a nozzle, and each heating gun is fixedly connected to a nozzle.

[0014] A method for annealing a copper workpiece comprises the following steps:

[0015] Step 1: First, the staff starts the electric push rod. The telescopic rod of the electric push rod drives the spring to drive the connecting block, heating gun, guide rod, moving frame, pressing frame and contact block to move through the lower pressure ring, guide frame and guide rod. The heating gun moves closer to the part so that each heating gun is at the same distance from the part.

[0016] Step 2: When annealing is required, the staff turns off the electric push rod, and then starts the heating gun and the high-temperature exhaust valve. After the heating gun is started, a high-temperature flame is sprayed. Since each heating gun is at the same distance from the part, the high-temperature flame of the heating gun makes the part evenly heated;

[0017] Step 3: After the thermal sensor detects that the part has been heated to the appropriate temperature, the staff turns off the heating gun and allows the heated part to cool naturally in the annealing furnace. After the part has been annealed, the staff opens the top cover and takes out the bottom plate and the part.

[0018] The beneficial effect is: the pressing frame presses downward to squeeze the heating gun and clamps the heating gun together with the moving frame. The moving frame continues to drive the heating gun to move so that each heating gun is at the same distance from the part. The staff starts the heating gun and the high-temperature exhaust valve. After the heating gun is started, a high-temperature flame is sprayed. Since each heating gun is at the same distance from the part, the high-temperature flame of the heating gun makes the part evenly heated, thereby achieving a better annealing effect of the part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure in an embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of a local three-dimensional structure in an embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of a partially cutaway three-dimensional structure in an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the guiding mechanism and the moving mechanism in the embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the heating gun and the connecting block in the embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the partial three-dimensional structure of the moving mechanism and the retracting mechanism in the embodiment of the present invention.

[0025] Figure 7 It is a partial cross-sectional three-dimensional structural schematic diagram of the guide mechanism and the retracting mechanism in the embodiment of the present invention.

[0026] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the circulation mechanism in an embodiment of the present invention.

[0027] Fig. 9 It is a schematic diagram of a second partial three-dimensional structure of the circulation mechanism in an embodiment of the present invention.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the bottom plate, the guide ring and the sealing ring in an embodiment of the present invention.

[0029] Fig.11 It is a schematic diagram of a partial cross-sectional three-dimensional structure of the circulation mechanism in an embodiment of the present invention.

[0030] The names and serial numbers of the parts in the figure are: 1_shell, 2_annealing furnace, 21_high temperature exhaust valve, 3_top cover, 4_thermal sensor, 5_bottom plate, 6_parts, 71_fixed rod, 72_moving frame, 73_heating gun, 74_connecting block, 801_fixed frame, 81_electric push rod, 82_lower pressure ring, 83_guide frame, 84_driving frame, 85_connecting spring, 91_guide rod, 92_guide rod, 93_pressing frame, 94_contact block, 95_elastic plate, 101_guide ring, 102_guide plate, 103_sealing ring, 104_rotating fan blade, 105_pushing fan blade, 106_wind guide cover, 11_rotating roller, 12_nozzle. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Embodiment 1: A method and device for annealing a copper workpiece, such as Figure 1-Figure 7 As shown, it includes a shell 1, an annealing furnace 2, a high-temperature exhaust valve 21, a top cover 3, a thermal sensor 4, a bottom plate 5, a guiding mechanism, a moving mechanism and a retracting mechanism. The shell 1 is connected to the annealing furnace 2 by bolts. The annealing furnace 2 is fixedly connected to the high-temperature exhaust valve 21 by reeds. The top cover 3 is clamped on the top of the annealing furnace 2. Several thermal sensors 4 are fixedly connected to the inside of the annealing furnace 2. A bottom plate 5 is placed in the annealing furnace 2. The bottom plate 5 is provided with air guide holes. Parts 6 are placed on the bottom plate 5. The annealing furnace 2 is provided with a guiding mechanism, which is used to limit the movement of the heat source. The annealing furnace 2 and the guiding mechanism are provided with a moving mechanism, which is used to drive the guiding mechanism to move. The guiding mechanism and the moving mechanism are provided with a retracting mechanism, which is used to drive the heat source to retract.

[0033] The bottom plate 5 is provided with a plurality of hooks.

[0034] The guide mechanism includes a fixed rod 71, a movable frame 72, a heating gun 73 and a connecting block 74. Six fixed rods 71 ​​are welded to the outside of the annealing furnace 2. The six fixed rods 71 ​​are evenly distributed. Each fixed rod 71 is slidably connected to a movable frame 72. Each movable frame 72 has six guide grooves. Three heating guns 73 are slidably connected to the six guide grooves of each movable frame 72. Each heating gun 73 is connected to a connecting block 74 by bolts.

[0035] The moving mechanism includes a fixed frame 801, an electric push rod 81, a lower pressure ring 82, a guide frame 83, a driving frame 84 and a connecting spring 85. Two fixed frames 801 are welded on the annealing furnace 2. Each fixed frame 801 is connected to an electric push rod 81 by bolts. A lower pressure ring 82 is fixedly connected between the telescopic rods of the two electric push rods 81. Six guide frames 83 are welded on the lower pressure ring 82. Each guide frame 83 has a guide groove. Each fixed rod 71 is slidably connected to a driving frame 84. Each driving frame 84 is slidably connected to the guide groove of each guide frame 83. Each driving frame 84 is fixedly connected to the three connecting blocks 74 on the same moving frame 72 with a connecting spring 85. The driving frame 84 is used to drive the heating gun 73 to move.

[0036] The retraction mechanism includes a guide rod 91, a guide rod 92, a pressure frame 93, a contact block 94 and an elastic plate 95. A guide rod 91 is welded on each movable frame 72, and a guide rod 92 is welded on each guide frame 83. The guide rod 92 is used to push the guide rod 91 and the movable frame 72. A guide groove is opened on each guide rod 92, and the guide groove of each guide rod 92 is respectively connected to each guide rod 91 in a sliding manner. A pressure frame 93 is slidably connected to each movable frame 72, and each pressure frame 93 contacts with three heating guns 73 on the same movable frame 72. A contact block 94 is welded on each pressure frame 93, and each contact block 94 is provided with an inclined surface. Six elastic plates 95 are welded on the outer wall of the annealing furnace 2.

[0037] The surface of the press frame 93 is a rough surface.

[0038] First, the staff opens the top cover 3 and separates it from the annealing furnace 2, then the staff takes out the bottom plate 5 and the part 6 through the hook of the bottom plate 5, then the staff takes the annealed part 6 off the bottom plate 5, and puts a new part 6 on the bottom plate 5, then the staff puts the bottom plate 5 and the new part 6 back to the bottom of the annealing furnace 2, the staff covers the top cover 3 again, and then the staff starts the electric push rod 81, the telescopic rod of the electric push rod 81 contracts downward, which will drive the lower pressure ring 82, the guide frame 83 and the guide rod 92 to move downward together, the guide frame 83 moves downward, and the guide groove on the guide frame 83 squeezes the drive frame 84 to move, and the movement of the drive frame 84 drives the connecting block 74 and the heating gun 73 to move through the connecting spring 85, and the heating gun When the guide frame 83 moves, it will contact the part 6. After the heating gun 73 contacts the part 6, it will stop moving, so that multiple heating guns 73 fit the part 6. The driving frame 84 continues to move, which will stretch the connecting spring 85. The guide frame 83 continues to move downward, so that the driving frame 84 contacts the vertical part of the guide groove of the guide frame 83, and the driving frame 84 stops moving. At the same time, the guide rod 92 moves downward, which will make the guide rod 91 contact the bending part of the guide groove of the guide rod 92. The guide rod 92 continues to move downward, which will make the bending part of the guide groove of the guide rod 92 squeeze the guide rod 91 to move. The movement of the guide rod 91 will drive the moving frame 72 to move in the direction away from the annealing furnace 2. The movement of the moving frame 72 will drive the pressing frame 93 and the contact block 94 to move. The movement of the contact block 94 will make the contact The inclined surface of block 94 contacts with elastic plate 95. The contact block 94 continues to move, which causes the inclined surface of contact block 94 to squeeze elastic plate 95 and bend elastic plate 95. The bending of elastic plate 95 generates a downward force to squeeze press frame 93 and contact block 94 downward. Pressing press frame 93 downward squeezes heating gun 73 and clamps heating gun 73 together with moving frame 72. Moving frame 72 continues to drive heating gun 73, connecting block 74, press frame 93 and contact block 94 to move. The movement of connecting block 74 causes connecting spring 85 to continue to stretch. The movement of heating gun 73 will disengage from part 6, so that each heating gun 73 is at the same distance from part 6. Then the staff turns off electric push rod 81. The closing of electric push rod 81 causes lower pressure ring 82 and guide frame 83 to move. , moving frame 72, heating gun 73, connecting block 74, driving frame 84, connecting spring 85, guide rod 91, guide rod 92, pressing frame 93 and contact block 94 stop moving. Finally, the staff starts the heating gun 73 and the high-temperature exhaust valve 21. After the heating gun 73 is started, a high-temperature flame is sprayed. Since each heating gun 73 is at the same distance from the part 6, the high-temperature flame of the heating gun 73 makes the part 6 evenly heated, so that the annealing effect of the part 6 is better. The smoke generated by the high-temperature flame will pass through the air guide holes on the bottom plate 5 and be discharged through the high-temperature exhaust valve 21. The smoke generated by the high-temperature flame will heat the bottom plate 5 when passing through the air guide holes on the bottom plate 5. The heated bottom plate 5 will heat the part 6 from the bottom. After the thermal sensor 4 detects that the part 6 is heated to a suitable temperature,The staff turns off the heating gun 73 and the high-temperature exhaust valve 21, so that the heated part 6 is naturally cooled in the annealing furnace 2. After the part 6 is annealed, the staff starts the electric push rod 81. The telescopic rod of the electric push rod 81 extends to drive the lower pressure ring 82, the guide frame 83 and the guide rod 92 to reset. The reset of the guide rod 92 will drive the moving frame 72, the pressure frame 93 and the contact block 94 to reset. The reset of the contact block 94 will break away from the elastic plate 95. The elastic plate 95 rebounds to the initial state. The guide frame 83 will drive the driving frame 84 to reset. The reset of the driving frame 84 will reset the connecting spring 85. The continued reset of the driving frame 84 will drive the heating gun 73 and the connecting block 74 to reset through the connecting spring 85. After the reset is completed, the staff turns off the electric push rod 81, opens the top cover 3 to take out the bottom plate 5 and the part 6, and then repeats this process.

[0039] Embodiment 2: Based on embodiment 1, Figure 8-Figure 11 As shown, a circulation mechanism is also included, which is used to circulate hot air. The circulation mechanism includes a guide ring 101, a guide plate 102, a sealing ring 103, a rotating blade 104, a pushing blade 105 and an air guide cover 106. A guide ring 101 is welded on the inner wall of the annealing furnace 2, a guide plate 102 is welded on the top cover 3, the guide plate 102 is in contact with the guide ring 101, a sealing ring 103 is welded on the bottom plate 5, the sealing ring 103 is in contact with the guide ring 101, a rotating blade 104 is rotatably connected to the top cover 3, the rotating blade 104 is used to extract high-temperature flue gas, a pushing blade 105 is fixedly connected to the rotating blade 104, an air guide cover 106 is welded on the top cover 3, two through holes are opened on the air guide cover 106, and the pushing blade 105 is located in the air guide cover 106.

[0040] Before annealing, the staff first connects an air pipe to a through hole of the air guide cover 106. The movement of the top cover 3 will drive the guide plate 102, rotate the fan blade 104, push the fan blade 105 and the air guide cover 106 to move. The movement of the bottom plate 5 will drive the sealing ring 103 to move. When the bottom plate 5 is placed in the annealing furnace 2, the sealing ring 103 will contact the guide ring 101 and seal the joint between the guide ring 101 and the bottom plate 5. When the top cover 3 is placed on the annealing furnace 2, the guide plate 102 will contact the guide ring 101. After the heating gun 73 is started, a large amount of high-temperature flue gas is generated, and the high-temperature flue gas will accumulate under the top cover 3. At the same time, the high-pressure gas enters the air guide cover 106 through the air pipe and is discharged from another through hole. The gas entering the air guide cover 106 will drive the pushing blades 105 to rotate, and the rotation of the pushing blades 105 will drive the rotating blades 104 to rotate. The rotation of the rotating blades 104 will draw away the high-temperature flue gas under the top cover 3, and the drawn high-temperature flue gas will enter the air guide holes of the bottom plate 5 through the channel formed by the guide ring 101 and the annealing furnace 2, and then be discharged through the high-temperature exhaust valve 21. The high-temperature flue gas will quickly heat the bottom plate 5, and the heated bottom plate 5 will quickly heat the bottom of the part 6, so that the whole part 6 can be evenly heated, thereby further improving the annealing effect of the part 6. After the heating gun 73 is turned off, the high-pressure gas stops being injected into the air guide cover 106, and the rotating blades 104 and the pushing blades 105 stop rotating.

[0041] Embodiment 3: Based on embodiment 2, Figure 7 As shown, a rotating roller 11 is also included, and each elastic plate 95 is rotatably connected to the rotating roller 11.

[0042] The contact block 94 moves and contacts with the rotating roller 11. The contact block 94 continues to move and squeezes the rotating roller 11 to move upward along the inclined surface of the contact block 94. The upward movement of the rotating roller 11 causes the elastic plate 95 to bend. At the same time, the rotating roller 11 rotates, so that the movement between the contact block 94 and the elastic plate 95 is smoother, so that the elastic plate 95 can better squeeze the pressure frame 93 and the contact block 94. The contact block 94 is reset and disengaged from the rotating roller 11, and the elastic plate 95 drives the rotating roller 11 to reset.

[0043] Embodiment 4: Based on the embodiment 3, Figure 7 As shown, a nozzle 12 is also included, and each heating gun 73 is fixedly connected to a nozzle 12 .

[0044] The nozzle 12 can make the high-temperature flame sprayed from the heating gun 73 more concentrated on the part 6, so that the part 6 is heated more evenly.

[0045] The above is a detailed introduction to the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An annealing device for a copper workpiece, characterized in that: The invention comprises a shell (1), an annealing furnace (2), a high-temperature exhaust valve (21), a top cover (3), a thermal sensor (4), a bottom plate (5), a guide mechanism, a moving mechanism and a retracting mechanism. The shell (1) is fixedly connected to the annealing furnace (2), the bottom of the annealing furnace (2) is fixedly connected to the high-temperature exhaust valve (21), the top cover (3) is clamped on the top of the annealing furnace (2), a plurality of thermal sensors (4) are fixedly connected inside the annealing furnace (2), a bottom plate (5) is placed inside the annealing furnace (2), an air guide hole is opened on the bottom plate (5), parts (6) are placed on the bottom plate (5), the annealing furnace (2) is provided with a guide mechanism, the guide mechanism is used to limit the movement of the heat source, the annealing furnace (2) and the guide mechanism are provided with a moving mechanism, the moving mechanism is used to drive the guide mechanism to move, the guide mechanism and the moving mechanism are provided with a retracting mechanism, the retracting mechanism is used to drive the heat source to retract.

2. The annealing device for a copper workpiece according to claim 1, characterized in that: A plurality of hooks are arranged on the bottom plate (5).

3. The annealing device for a copper workpiece according to claim 1, characterized in that: The guide mechanism comprises a fixed rod (71), a movable frame (72), a heating gun (73) and a connecting block (74). Six fixed rods (71) are fixedly connected to the outer side of the annealing furnace (2). The six fixed rods (71) are evenly distributed. Each fixed rod (71) is slidably connected to a movable frame (72). Each movable frame (72) is provided with six guide grooves. Three heating guns (73) are slidably connected to the six guide grooves of each movable frame (72). Each heating gun (73) is fixedly connected to a connecting block (74).

4. The annealing device for a copper workpiece according to claim 3, characterized in that: The moving mechanism comprises a fixed frame (801), an electric push rod (81), a lower pressure ring (82), a guide frame (83), a driving frame (84) and a connecting spring (85). Two fixed frames (801) are fixedly connected to the annealing furnace (2). Each fixed frame (801) is fixedly connected to an electric push rod (81). A lower pressure ring (82) is fixedly connected between the telescopic rods of the two electric push rods (81). Six guide frames (83) are fixedly connected to the lower pressure ring (82). Each guide frame (83) is provided with a guide groove. Each fixed rod (71) is slidably connected to a driving frame (84). Each driving frame (84) is respectively slidably connected to the guide groove of each guide frame (83). Each driving frame (84) is respectively fixedly connected to three connecting blocks (74) on the same moving frame (72) with a connecting spring (85).

5. The annealing device for a copper workpiece according to claim 4, characterized in that: The retraction mechanism comprises a guide rod (91), a guide rod (92), a pressure frame (93), a contact block (94) and an elastic plate (95); each movable frame (72) is fixedly connected to a guide rod (91); each guide frame (83) is fixedly connected to a guide rod (92); each guide rod (92) is provided with a guide groove; the guide groove of each guide rod (92) is respectively connected to each guide rod (91) in a sliding manner; each movable frame (72) is connected to a pressure frame (93) in a sliding manner; each pressure frame (93) contacts three heating guns (73) on the same movable frame (72); each pressure frame (93) is fixedly connected to a contact block (94); each contact block (94) is provided with an inclined surface; and six elastic plates (95) are fixedly connected to the outer wall of the annealing furnace (2).

6. The annealing device for a copper workpiece according to claim 5, characterized in that: The surface of the pressing frame (93) is a rough surface.

7. The annealing device for a copper workpiece according to claim 5, characterized in that: The annealing furnace (2) also includes a circulation mechanism, which is used for circulating hot air. The circulation mechanism includes a guide ring (101), a guide plate (102), a sealing ring (103), a rotating fan blade (104), a pushing fan blade (105) and an air guide cover (106). The guide ring (101) is fixedly connected to the inner wall of the annealing furnace (2), and the guide plate (102) is fixedly connected to the top cover (3). The guide plate (102) is in contact with the guide ring (101). A sealing ring (103) is fixedly connected to the bottom plate (5), the sealing ring (103) is in contact with the guide ring (101), a rotating blade (104) is rotatably connected to the top cover (3), a pushing blade (105) is fixedly connected to the rotating blade (104), an air guide cover (106) is fixedly connected to the top cover (3), two through holes are formed on the air guide cover (106), and the pushing blade (105) is located inside the air guide cover (106).

8. The annealing device for a copper workpiece according to claim 7, characterized in that: It also includes a rotating roller (11), and each elastic plate (95) is rotatably connected to the rotating roller (11).

9. The annealing device for a copper workpiece according to claim 7, characterized in that: It also includes a nozzle (12), and each heating gun (73) is fixedly connected to a nozzle (12).

10. The annealing method of a copper workpiece according to claim 9, characterized in that: The following steps are involved: Step 1: First, the staff starts the electric push rod (81), and the telescopic rod of the electric push rod (81) drives the spring to drive the connecting block (74), the heating gun (73), the guide rod (91), the moving frame (72), the pressing frame (93) and the contact block (94) to move through the lower pressure ring (82), the guide frame (83) and the guide rod (92), so that the heating gun (73) moves closer to the part (6), so that each heating gun (73) is at the same distance from the part (6); Step 2: When annealing is required, the staff closes the electric push rod (81), and then starts the heating gun (73) and the high-temperature exhaust valve (21). After the heating gun (73) is started, a high-temperature flame is sprayed. Since each heating gun (73) is at the same distance from the part (6), the high-temperature flame of the heating gun (73) allows the part (6) to be heated evenly. Step 3: After the thermal sensor (4) detects that the part (6) is heated to a suitable temperature, the staff turns off the heating gun (73) to allow the heated part (6) to cool naturally in the annealing furnace (2). After the part (6) is annealed, the staff opens the top cover (3) to take out the bottom plate (5) and the part (6).

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