Device for changing sample in free falling body mode in alloy heat treatment equipment
By designing a free-fall sample replacement device, the problem of low sample replacement efficiency in existing vacuum heat treatment equipment is solved, and the rapid replacement of multiple samples and heat treatment is achieved, which improves experimental efficiency and reduces costs.
Patent Information
- Application Number
- CN202420941904.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The sample replacement device of existing vacuum heat treatment equipment can only replace one sample at a time, resulting in low experimental efficiency and requiring repeated vacuum extraction and inert gas filling.
A free-fall sample replacement device is designed, including a propulsion rod, an L-shaped sample support rod, a clamping mechanism and a transmission spring, and the rapid and accurate replacement and heating of samples are achieved through a stepper motor and gear set.
The sample replacement and heat treatment experiments of multiple samples can be completed by vacuuming and inert gas at one time, which greatly improves the experimental efficiency, simplifies operations, and reduces equipment updates and manufacturing costs.
Smart Images
Figure CN222613434U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of alloy heat treatment equipment, and in particular relates to a device for changing samples in a free-falling manner in alloy heat treatment equipment. Background Art
[0002] Heat treatment refers to a metal heat processing process in which materials are heated, kept warm and cooled in a solid state to obtain the expected structure and performance. Heat treatment generally does not change the shape and overall chemical composition of the workpiece, but rather changes the microstructure inside the workpiece or the chemical composition on the surface of the workpiece to give or improve the performance of the workpiece. In practice, aluminum, copper, magnesium, titanium and their alloys usually need to be heat treated to change their mechanical, physical and chemical properties to obtain different performance. Heat treatment experiments on small alloy samples are generally completed in vacuum heat treatment equipment. Before each experiment, there will be a long pre-vacuuming and inert gas filling process. The sample changing device in the existing vacuum heat treatment equipment can only replace one sample at a time. Therefore, each time the sample is replaced, the vacuuming and inert gas filling process needs to be repeated before the heat treatment experiment. Therefore, repeated vacuuming and inert gas filling operations are required during an experiment, which greatly reduces the efficiency of the experiment. Utility Model Content
[0003] The utility model aims to provide a device for changing samples in a free-falling manner in alloy heat treatment equipment, which solves the problem that the existing sample changing device can only change one sample at a time, resulting in low experimental efficiency.
[0004] The technical scheme adopted by the utility model is a device for changing samples in a free-fall manner in alloy heat treatment equipment, comprising a push rod and an L-shaped sample support rod, one end of the push rod is connected to a sample push mechanism, the other end of the push rod is sleeved with the bottom end of a transmission pipe, a clamping mechanism is arranged at the top end of the transmission pipe, the clamping mechanism is arranged vertically with the transmission pipe, a transmission spring is arranged in the transmission pipe, the bottom end of the transmission spring is connected to the push rod, the top end of the transmission spring is arranged in the clamping mechanism, a high-frequency induction heating coil is arranged below the outlet of the clamping mechanism, one end of the sample support rod is arranged in the high-frequency induction heating coil, the other end of the sample support rod is connected to the sample support rod push mechanism through a horizontal rotation control gear set, and a sample quenching collection mechanism is arranged below the high-frequency induction heating coil.
[0005] The utility model is also characterized in that:
[0006] The sample advancing mechanism comprises a first rack, which is arranged at one end of the advancing rod away from the transmission pipe, and a first gear is meshed on the first rack, and the first gear is connected to the output end of the first stepper motor.
[0007] The clamping mechanism includes a sample clip, which is arranged on one side of the top of the transmission pipeline. The sample clip is arranged vertically to the transmission pipeline. A second rack is arranged at the bottom of the sample clip, and a second gear is meshed on the second rack. The second gear is connected to the output end of the second stepper motor, and a transmission spring is arranged in the sample clip.
[0008] The side wall of the sample clip at the bottom is tilted, and the tilt angle is no greater than 45°.
[0009] The sample support rod advancing mechanism comprises a vertically arranged sample support rod advancing rod, on which a third rack is arranged, a fifth gear is meshed on the third rack, and the fifth gear is connected to a fourth stepping motor.
[0010] The horizontal rotation control gear set includes a rotating shaft, one end of which is connected to an end of the sample support rod away from the high-frequency induction heating coil, and the other end of the rotating shaft is rotatably connected to the top end of the sample support rod pushing rod. A third gear is sleeved on the rotating shaft, the third gear is meshed with a fourth gear, and the fourth gear is connected to a third stepping motor.
[0011] The sample quenching and collecting mechanism comprises a funnel-shaped liquid quenching pool, which is arranged directly below the high-frequency induction heating coil, and a tubular sample collector is connected to the bottom of the liquid quenching pool.
[0012] The diameter of the tubular sample collector is not less than the diameter of the alloy sample after heat treatment and is not greater than twice the diameter of the alloy sample after heat treatment.
[0013] The beneficial effects of the utility model are:
[0014] (1) The device for changing samples by free fall in the alloy heat treatment equipment of the utility model is provided with a sample clip, which can load multiple alloy samples at one time, so that multiple alloy samples can be changed by one vacuum pumping and one inert filling, and heat treatment experiments can be performed on multiple samples, which greatly improves the experimental efficiency;
[0015] (2) The device for changing samples by free fall in the alloy heat treatment equipment of the utility model delivers the sample metal by free fall, and can accurately and quickly place the alloy sample at a predetermined position;
[0016] (3) The device for changing samples by free fall in the alloy heat treatment equipment of the utility model can adjust the horizontal position of the sample clip 6 by setting a second stepping motor, a second gear 5, and a second rack 18, so that it can be kept away from the top of the high-frequency induction heating coil 8 to avoid affecting the collection of alloy sample parameters by the sensing device on the upper part of the vacuum chamber, and after the experiment, a tubular sample collector is used to accurately distinguish the order of the processed alloy samples;
[0017] (4) The device for changing samples by free fall in the alloy heat treatment equipment of the utility model makes it possible to change alloy samples in a narrow space by setting a stepping motor and a transmission spring, making it suitable for equipment with a small vacuum heat treatment chamber;
[0018] (5) The device for changing samples by free fall in the alloy heat treatment equipment of the utility model is easy to operate and load and unload, and is low in price, which effectively reduces the updating and manufacturing costs of the experimental equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the sample loading process structure of the device for changing samples by free fall in the alloy heat treatment equipment of the utility model;
[0020] Figure 2 It is a structural schematic diagram of a horizontal rotation control gear set in a device for changing samples in a free-fall manner in the alloy heat treatment equipment of the utility model;
[0021] Figure 3 The present invention is a schematic diagram of the structure of the sample collection process of the device for changing samples by free fall in the alloy heat treatment equipment of the present invention.
[0022] In the figure, 1. first gear, 2. push rod, 3. transmission pipe, 4. transmission spring, 5. second gear, 6. sample clip, 7. alloy sample before heat treatment, 8. high-frequency induction heating coil, 9. liquid quenching pool, 10. tubular sample collector, 11. room temperature liquid metal, 12. sample support rod, 13. third gear, 14. fourth gear, 15. sample support rod push rod, 16. fifth gear, 17. first rack, 18. second rack, 19. third rack, 20. rotating shaft, 21. alloy sample after heat treatment, 22. sample loading and falling trajectory. DETAILED DESCRIPTION
[0023] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.
[0024] Example 1
[0025] The utility model discloses a device for changing samples by free fall in alloy heat treatment equipment, the structure of which is as follows Figure 1As shown, it includes a push rod 2 and an L-shaped sample support rod 12, one end of the push rod 2 is connected to a sample push mechanism, the sample push mechanism is used to make the push rod 2 move up and down, the other end of the push rod 2 is sleeved with the bottom end of the transmission pipe 3, the push rod 2 can move up and down in the transmission pipe 3, the transmission pipe 3 is used to limit the moving route of the push rod 2, avoid the push rod 2 from tilting, and increase stability, a clamping mechanism is arranged at the top of the transmission pipe 3, the clamping mechanism is used to hold the alloy sample 7 before heat treatment, and multiple alloy samples before heat treatment can be held at one time, the clamping mechanism is arranged vertically to the transmission pipe 3, a transmission spring 4 is arranged in the transmission pipe 3, the bottom end of the transmission spring 4 is connected to the push rod 2, and the top end of the transmission spring 4 is arranged in the clamping mechanism, the sample push mechanism pushes the push rod 2 to move upward in the transmission pipe 3, thereby pushing the transmission spring 4, and the other end of the transmission spring 4 pushes the alloy sample 7 before heat treatment, and the alloy sample 7 before heat treatment is closed. The gold sample 7 is moved out of the clamping mechanism for free fall. A high-frequency induction heating coil 8 is arranged below the outlet of the clamping mechanism. One end of the sample support rod 12 is arranged in the high-frequency induction heating coil 8. The other end of the sample support rod 12 is arranged horizontally and the other end of the sample support rod 12 is connected to the sample support rod propulsion mechanism through a horizontal rotation control gear set. The sample support rod 12 is used to receive the pre-heat-treated alloy sample 7 that freely falls from the clamping mechanism. The high-frequency induction heating coil 8 is used to heat-treat the pre-heat-treated alloy sample 7. The horizontal rotation control gear set is used to control the sample support rod 12 to rotate in the horizontal direction. The sample support rod propulsion mechanism is used to move the sample support rod 12 up and down. A sample quenching collection mechanism is arranged directly below the high-frequency induction heating coil 8. The sample support rod 12 is arranged between the high-frequency induction heating coil 8 and the sample quenching collection mechanism. The sample quenching collection mechanism is used to collect the alloy sample 21 after heat treatment.
[0026] Example 2
[0027] The sample advancing mechanism includes a first rack 17, which is arranged at one end of the advancing rod 2 away from the transmission pipe 3, and a first gear 1 is meshed on the first rack 17, and the first gear 1 is connected to the output end of the first stepper motor. When the first stepper motor is started, the first stepper motor drives the first rack 17 to rotate, and the first rack 17 drives the first rack 17 to move up and down, and the first rack 17 drives the advancing rod 2 to move up and down.
[0028] The clamping mechanism includes a sample clip 6, which is arranged on one side of the top of the transmission pipe 3. The sample clip 6 is arranged vertically to the transmission pipe 3. A second rack 18 is arranged at the bottom of the sample clip 6, and a second gear 5 is meshed on the second rack 18. The second gear 5 is connected to the output end of the second stepper motor. The end of the transmission spring 4 away from the propulsion rod 2 is arranged in the sample clip 6. The side wall of the sample clip 6 at the bottom is inclined, and the inclination angle is not greater than 45°. This can prevent the sample clip 6 from being moved by the transmission spring 4 after a plurality of pre-heat-treated alloy samples 7 are installed in the sample clip 6. The second stepper motor is started, and the second stepper motor drives the second gear 5 to rotate. The second gear 5 drives the second rack 18 to move left and right. The second rack 18 drives the sample clip 6 to move left and right, thereby adjusting the left and right positions of the sample clip 6 to ensure that the pre-heat-treated alloy sample 7 falls freely on the sample support rod 12 after being removed.
[0029] The sample support rod advancing mechanism includes a vertically arranged sample support rod advancing rod 15, on which a third rack 19 is arranged, on which a fifth gear 16 is meshed, and the fifth gear 16 is connected to a fourth stepping motor. When the fourth stepping motor is started, the fourth stepping motor drives the fifth gear 16 to rotate, and the fifth gear 16 drives the third rack 19 to move up and down, and the third rack 19 drives the sample support rod advancing rod 15 to move up and down, thereby driving the sample support rod 12 to move up and down, so as to control whether the end of the sample support rod 12 away from the sample support rod advancing rod 15 is located in the high-frequency induction heating coil 8 or moves out of the high-frequency induction heating coil 8.
[0030] like Figure 2 As shown, the horizontal rotation control gear set includes a rotating shaft 20, one end of the rotating shaft 20 is fixedly connected to the end of the sample support rod 12 away from the high-frequency induction heating coil 8, and the other end of the rotating shaft 20 is rotatably connected to the top end of the sample support rod pushing rod 15. A third gear 13 is sleeved on the rotating shaft 20, and the third gear 13 is meshed with a fourth gear 14. The fourth gear 14 is connected to a third stepping motor. When the third stepping motor is started, the third stepping motor drives the fourth gear 14 to rotate, the fourth gear 14 drives the third gear 13 to rotate, and the third gear 13 drives the rotating shaft 20 to rotate, and the rotating shaft 20 drives the sample support rod 12 to rotate in the horizontal direction.
[0031] Example 3
[0032] The sample quenching collection mechanism includes a funnel-shaped liquid quenching pool 9, which is arranged directly below the high-frequency induction heating coil 8. The inner diameter of the top of the liquid quenching pool 9 is larger than the inner diameter of the high-frequency induction heating coil 8 to ensure that the heat-treated alloy sample 21 can fall into the liquid quenching pool 9. The bottom of the liquid quenching pool 9 is connected to a tubular sample collector 10, and the bottom of the tubular sample collector 10 is in a closed state. The diameter of the tubular sample collector 10 is not less than the diameter of the heat-treated alloy sample 21 and not more than 2 times the diameter of the heat-treated alloy sample 21 to ensure that the heat-treated alloy sample 21 can be stored in the tubular sample collector 10 and arranged from bottom to top in sequence to avoid the situation where two heat-treated alloy samples 21 are arranged in parallel. After the heat-treated alloy sample 21 falls into the liquid quenching pool 9, it enters the tubular sample collector 10. The liquid quenching pool 9 and the tubular sample collector 10 are filled with room temperature liquid metal 11.
[0033] The working process of the device for changing samples by free fall in the alloy heat treatment equipment of the utility model is as follows: when in use, the device for changing samples of the utility model is arranged as a whole in the positive air heat treatment chamber, the second stepper motor is started, the second stepper motor drives the second gear 5 to rotate, the second gear 5 drives the second rack 18 to move left and right, the second rack 18 drives the sample clip 6 to move left and right, so as to adjust the position of the sample clip 6 laterally, so that the outlet of the sample clip 6 is located directly above the high-frequency induction heating coil 8, multiple alloy samples 7 before heat treatment are sequentially loaded into the sample clip 6, and the first stepper motor is started. A stepper motor is used. The first stepper motor electrically rotates the first rack 17, and the first rack 17 drives the first rack 17 to move upward. The first rack 17 drives the push rod 2 to move upward, thereby adjusting the position of the push rod 2 in the longitudinal direction, so that the push rod 2 pushes the transmission spring 4 to move, squeezes the alloy sample 7 before heat treatment in the sample clip 6, and pushes the alloy sample before heat treatment out of the sample clip 6. The alloy sample 7 before heat treatment falls into the high-frequency induction heating coil 8 in a free-fall manner along the sample loading falling trajectory 22, and falls onto the sample support rod 12, and is heated by the high-frequency induction heating coil 8. After the alloy sample 7 is heated before treatment, the fourth stepper motor is started, the fourth stepper motor drives the fifth gear 16 to rotate, the fifth gear 16 drives the third rack 19 to move downward, the third rack 19 drives the sample support rod pushing rod 15 to move downward, and drives the sample support rod 12 to move downward. When the sample support rod 12 is lowered below the bottom of the high-frequency induction heating coil 8 and a part of the alloy sample 21 after heat treatment is still located in the high-frequency induction heating coil 8, the third stepper motor is started, the third stepper motor drives the fourth gear 14 to rotate, the fourth gear 14 drives the third gear 13 to rotate, and the third stepper motor drives the fourth gear 14 to rotate. The gear 13 drives the rotating shaft 20 to rotate, and the rotating shaft 20 drives the sample support rod 12 to rotate in the horizontal direction. Then, the heat-treated alloy sample 21 is separated from the sample support rod 12 and falls into the room temperature liquid metal 11 in the liquid quenching pool 9 under the obstruction of the high-frequency induction heating coil 8. The heat-treated alloy sample 21 slides along the side wall of the liquid quenching pool 9 into the bottom tubular sample collector 10. After all the alloy samples 7 before heat treatment are heat-treated, the vacuum heat treatment chamber is opened, and the heat-treated alloy samples 21 are taken out in sequence, so that the processing order of the heat-treated alloy samples 21 can be clearly known; Figure 3 As shown, before the next sample change, the first stepper motor is started, the first stepper motor electrically rotates the first rack 17, the first rack 17 drives the first rack 17 to move downward, and the first rack 17 drives the push rod 2 to move downward, thereby adjusting the position of the push rod 2 in the longitudinal direction, so that the transmission spring 4 returns to its original position, that is, the sample clip 6 leaves space to hold the alloy sample 7 before heat treatment.
Claims
1. A device for changing samples by free fall in an alloy heat treatment device, characterized in that: The invention comprises a pushing rod (2) and an L-shaped sample support rod (12), one end of the pushing rod (2) is connected to a sample pushing mechanism, the other end of the pushing rod (2) is sleeved with the bottom end of a transmission pipe (3), a clamping mechanism is arranged at the top end of the transmission pipe (3), the clamping mechanism is arranged vertically with the transmission pipe (3), a transmission spring (4) is arranged in the transmission pipe (3), the bottom end of the transmission spring (4) is connected to the pushing rod (2), the top end of the transmission spring (4) is arranged in the clamping mechanism, a high-frequency induction heating coil (8) is arranged below the outlet of the clamping mechanism, one end of the sample support rod (12) is arranged in the high-frequency induction heating coil (8), the other end of the sample support rod (12) is connected to the sample support rod pushing mechanism through a horizontal rotation control gear set, and a sample quenching collection mechanism is arranged below the high-frequency induction heating coil (8).
2. The device for changing samples by free fall in alloy heat treatment equipment according to claim 1, characterized in that: The sample advancing mechanism comprises a first rack (17), the first rack (17) being arranged at an end of the advancing rod (2) away from the transmission pipe (3), the first rack (17) being meshed with a first gear (1), and the first gear (1) being connected to an output end of a first stepper motor.
3. The device for changing samples by free fall in the alloy heat treatment equipment according to claim 1, characterized in that: The clamping mechanism comprises a sample clip (6), wherein the sample clip (6) is arranged on one side of the top of the transmission pipe (3), the sample clip (6) is arranged vertically with the transmission pipe (3), a second rack (18) is arranged at the bottom of the sample clip (6), a second gear (5) is meshed on the second rack (18), the second gear (5) is connected to the output end of the second stepping motor, and a transmission spring (4) is arranged in the sample clip (6).
4. The device for changing samples by free fall in alloy heat treatment equipment according to claim 3, characterized in that: The side wall of the sample clip (6) at the bottom is arranged to be inclined, and the inclination angle is not greater than 45°.
5. The device for changing samples by free fall in alloy heat treatment equipment according to claim 1, characterized in that: The sample support rod advancing mechanism comprises a vertically arranged sample support rod advancing rod (15), a third rack (19) is arranged on the sample support rod advancing rod (15), a fifth gear (16) is meshed on the third rack (19), and the fifth gear (16) is connected to a fourth stepping motor.
6. The device for changing samples by free fall in the alloy heat treatment equipment according to claim 5, characterized in that: The horizontal rotation control gear set comprises a rotating shaft (20), one end of the rotating shaft (20) is connected to an end of the sample support rod (12) away from the high-frequency induction heating coil (8), and the other end of the rotating shaft (20) is rotatably connected to the top end of the sample support rod pushing rod (15), a third gear (13) is sleeved on the rotating shaft (20), the third gear (13) is meshed with a fourth gear (14), and the fourth gear (14) is connected to a third stepping motor.
7. The device for changing samples by free fall in alloy heat treatment equipment according to claim 1, characterized in that: The sample quenching and collecting mechanism comprises a funnel-shaped liquid quenching pool (9), wherein the liquid quenching pool (9) is arranged directly below the high-frequency induction heating coil (8), and a tubular sample collector (10) is connected to the bottom of the liquid quenching pool (9).
8. The device for changing samples by free fall in alloy heat treatment equipment according to claim 7, characterized in that: The diameter of the tubular sample collector (10) is not less than the diameter of the alloy sample (21) after heat treatment and is not greater than twice the diameter of the alloy sample (21) after heat treatment.