Cold and hot impact test box for automobile part detection

Abstract

The invention discloses a cold and hot impact test box for automobile part detection, which comprises a cold and hot impact box body, the inner side of the cold and hot impact box body is provided with a part hanging basket for placing a detection part, and one side of the inner wall of the cold and hot impact box body is also provided with a current conversion assembly for gas exchange. Comprising a cold and heat exchange box fixed to the inner wall of a cold and heat impact box body, and an airflow channel for airflow to pass through is formed in the inner side of the cold and heat exchange box; through the arrangement of the structure with the cold and heat exchange box, when the test box is used for cold and heat detection, after the device is used for carrying out a cold and heat impact test, in order to quickly cool the temperature in the box body to normal temperature, air flow in the cold and heat cavity can be exchanged through the arrangement of the cold and heat exchange box structure; through interaction and mixing of cold air flow and hot air flow, the temperature can be quickly increased to a normal temperature state, a workpiece subjected to impact detection can be taken out more quickly, and the practicability and functionality of the device are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of thermal shock test chambers, and in particular relates to a thermal shock test chamber for detecting automobile parts. Background Art

[0002] Thermal shock test chamber, also known as thermal test chamber, is a kind of testing equipment that can switch from high temperature to low temperature instantly. Thermal shock test chamber is used to test the degree to which material structure or composite material can endure the continuous environment of extremely high temperature and extremely low temperature in an instant, as well as the chemical changes or physical damage caused by thermal expansion and contraction of the test specimen. It is widely used in many industries such as electronics, electrical appliances, automobiles, aerospace, military industry, new energy, medical equipment, etc. to conduct high and low temperature reliability tests on components and materials of various products.

[0003] The patent application number 202011333218.0 discloses a hot and cold shock test chamber and a test method thereof. The application fills the test space with water through a water circulation system, controls the pressure on the tested rubber ring by pressing two pistons through a driving device, and heats the tested rubber ring by heating the water in the test space. After the water in the test space is discharged, liquid nitrogen is injected into the test space through a liquid nitrogen circulation system to cool the tested rubber ring. The distance between the two pistons is adjusted through a driving device to control the pressure in the test space, thereby simulating various pressure environments. The device can perform non-contact heating on the tested rubber ring, and the microwave heating efficiency is high; in combination with the above application, and in comparison with the existing hot and cold shock test chamber structure, during use, the workpiece needs to be alternately placed in extremely cold and extremely hot spaces. When the test is completed, it is necessary to wait for the device to cool down naturally and then take out the tested product. Since the interior of the device is in an extremely hot and extremely cold environment, the natural cooling time is long, and the parts cannot be taken out in time, which affects the test efficiency and reduces the practicability of the device. For this reason, we propose a hot and cold shock test chamber for automotive parts testing. Summary of the invention

[0004] The purpose of the present invention is to provide a hot and cold shock test chamber for automobile parts testing, so as to solve the problem that the existing hot and cold shock test chamber structure proposed in the above-mentioned background technology requires that the workpiece be placed alternately in extremely cold and extremely hot spaces during use. After the test is completed, it is necessary to wait for the device to cool down naturally and then take out the tested product. Since the interior of the device is in an extremely hot and extremely cold environment, the natural cooling time is relatively long and the parts cannot be taken out in time, which affects the test efficiency and reduces the practicality of the device.

[0005] To achieve the above object, the present invention provides the following technical solution: a hot and cold shock test box for automobile parts testing, comprising a hot and cold shock box body, a part hanging basket for placing the test parts is arranged on the inner side of the hot and cold shock box body, and a flow conversion component for gas exchange is also arranged on one side of the inner wall of the hot and cold shock box body; The flow conversion assembly comprises a cold and hot exchange box fixed on the inner wall of the cold and hot shock box, wherein an air flow channel for air flow is provided inside the cold and hot exchange box; The opening and closing assembly comprises a lifting and adjusting seat arranged outside the cold and hot shock box, the lifting and adjusting seat is provided with a lifting motor for driving, and the inner side of the cold and hot shock box is provided with a closing baffle driven by the lifting motor on the surface of the cold and hot exchange box, and the closing baffle is installed on the surface of the cold and hot exchange box for opening and closing; The buffer assembly comprises a buffer seat, on which a buffer support plate is provided for supporting the parts hanging basket for buffering when it descends; The clamping assembly includes a part stabilizing clamp installed on the inner side of the part hanging basket, and also includes an adjustment assembly for adjusting the part stabilizing clamp.

[0006] Preferably, four airflow channels are equidistantly arranged on the inner side of the cold and hot exchange box, and one end of the airflow channel is at the inner top of the cold and hot shock box, and the other end of the airflow channel is at the inner bottom of the cold and hot shock box.

[0007] Preferably, the air flow channel includes a hot flow channel and a cold flow channel, and the hot flow channel and the cold flow channel are symmetrically arranged. An exchange fan is arranged in the air flow channel, and the exchange fan is arranged at the top of the air flow channel to form a hot flow channel, and the exchange fan is arranged at the bottom of the air flow channel to form a cold flow channel.

[0008] Preferably, a sealed bearing is installed on the inner side of the lifting adjustment seat, and a lifting threaded rod is provided on the inner side of the lifting adjustment seat at one end of the lifting motor, and the lifting threaded rod passes through the sealed bearing. At the same time, a lifting limit groove is provided on the inner wall of the hot and cold shock box at the lifting adjustment seat, and a lifting block driven by a thread is installed in the lifting limit groove on the lifting threaded rod.

[0009] Preferably, a closing baffle is provided on the lifting block on the front surface of the cold and heat exchange box, and the closing baffle is driven to rise and fall by a lifting motor, and the cold and heat exchange box is opened and closed by the closing baffle.

[0010] Preferably, a buffer seat is installed at the inner bottom of the cold and hot shock box, a buffer spring is provided at the inner bottom of the buffer seat, a spiral rod is installed at the inner top of the buffer seat, and a buffer support plate is installed at the top of the spiral rod.

[0011] Preferably, a spiral protrusion is provided on the surface of the spiral rod, a spiral groove is provided on the inner surface of the buffer seat, and the spiral rod and the buffer seat are limitedly assembled by the spiral protrusion and the spiral groove.

[0012] Preferably, a parts placement partition is provided on the inner side of the parts hanging basket, a clamping limit groove is provided on the surface of the parts placement partition, a clamping screw is installed on the inner side of the clamping limit groove, and a rotating rod is provided on one end of the clamping screw on one side of the parts placement partition.

[0013] Preferably, two part stabilizing clamps are symmetrically installed on the top of the part placing partition, and a threaded moving block is arranged at the bottom of the part stabilizing clamp, and the threaded moving block is arranged in the clamping limit groove and is screwed through by the clamping screw.

[0014] Preferably, a cavity partition is installed on the inner side of the cold and hot shock box, a cold shock cavity is provided on the inner top of the cold and hot shock box, a hot shock cavity is provided on the inner bottom of the cold and hot shock box, and the cold shock cavity is separated from the hot shock cavity by the cavity partition, a lifting groove is opened on the cavity partition, the parts hanging basket passes through the lifting groove, and a lifting chain for lifting is also provided on the top of the parts hanging basket, a box cover is installed on one side of the front surface of the cold and hot shock box, and an operation box is installed on the top of the other side of the front surface of the cold and hot shock box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting the structure with the cold and hot exchange box, when the test box in the application is used for cold and hot testing, after the device performs the cold and hot shock test, in order to quickly cool the temperature inside the box to normal temperature, the cold and hot exchange box structure can be used to exchange the airflow in the cold and hot cavities, thereby accelerating the temperature to normal temperature through the interaction and mixing of the cold and hot airflows, and more quickly taking out the workpiece for the shock test, thereby improving the practicality and functionality of the device; 2. A closing structure is also provided on the outside of the cold and hot exchange box. During the cold and hot shock process of the device, in order to prevent the alternation of cold and hot, which causes the temperature in the device to fail to meet the standard, the closed baffle can be closed during the experiment, thereby preventing the cold and hot airflow from exchanging heat through the cold and hot exchange box during the test. After use, the closed baffle can be opened, thereby improving the practicality of the device; 3. In addition, a buffer structure is provided at the bottom of the device. During the lifting process of the parts hanging basket, it is hoisted by a lifting chain. When the parts hanging basket drops to the limit position, it is easy to collide with the cavity partition. The buffer structure can play a buffering role when the parts hanging basket drops, thereby avoiding the collision of the parts hanging basket and better ensuring the stability of the device; 4. At the same time, the device is also provided with a part stabilizing clamp for clamping. When the parts are placed on the part placing partition and as the part basket is lifted and lowered back and forth between the cold shock chamber and the hot shock chamber, the parts are prone to shaking, which may cause them to fall and bump. The part stabilizing clamp provided on the part placing partition can clamp the placed parts to avoid unstable placement of the parts during the lifting and lowering of the part basket, or the occurrence of falling and bumping, thereby ensuring the stability and functionality of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the hot and cold shock box of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the cold and hot exchange box of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the buffer seat of the present invention; Figure 5 It is a structural schematic diagram of the parts hanging basket of the present invention; Figure 6 A schematic diagram of the structure of placing a partition for a part of the present invention; In the figure: 100, cold and hot shock box; 101, operation box; 102, box cover; 103, cold shock chamber; 104, hot shock chamber; 105, parts hanging basket; 106, chamber partition; 107, lifting chain; 200, cold and hot exchange box; 201, air flow channel; 202, hot flow channel; 203, cold flow channel; 204, exchange fan; 205, lifting adjustment seat; 206, sealed bearing; 207 , lifting motor; 208, lifting threaded rod; 209, lifting limit groove; 210, lifting block; 211, closing baffle; 300, buffer seat; 301, buffer support plate; 302, spiral rod; 303, spiral protrusion; 304, buffer spring; 400, part placement partition; 401, part stabilizing clamp; 402, clamping limit groove; 403, clamping screw; 404, threaded moving block; 405, rotating rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1 See also Figure 1 , Figure 2 and Figure 3 The present invention provides a technical solution: a hot and cold shock test box for automobile parts inspection, comprising a hot and cold shock box body 100, a cavity partition 106 is installed on the inner side of the hot and cold shock box body 100, a hot and cold shock chamber 103 is arranged on the inner top of the hot and cold shock box body 100, a hot and cold shock chamber 104 is arranged on the inner bottom of the hot and cold shock box body 100, and the hot and cold shock chamber 103 is separated from the hot and cold shock chamber 104 by the cavity partition 106, a lifting groove is opened on the cavity partition 106, a parts hanging basket 105 passes through the lifting groove, and a lifting chain 107 for lifting is also arranged on the top of the parts hanging basket 105, a box cover plate 102 is installed on one side of the front surface of the hot and cold shock box body 100, an operation box 101 is installed on the top of the other side of the front surface of the hot and cold shock box body 100, and a parts hanging basket 103 for placing the inspection parts is arranged on the inner side of the hot and cold shock box body 100. 05. A flow conversion component for gas exchange is also provided on one side of the inner wall of the cold and hot shock box 100. The flow conversion component includes a cold and hot exchange box 200 fixed on the inner wall of the cold and hot shock box 100. An airflow channel 201 for airflow is provided on the inner side of the cold and hot exchange box 200. When the cold and hot shock test box in the application is used to test automotive parts, the box cover 102 is opened before the test, and the test sample is placed on the part placement partition 400 of the part hanging basket 105. At the same time, the part hanging basket 105 is hoisted by the lifting chain 107 to move up and down between the cold shock chamber 103 and the hot shock chamber 104. Before the test, energy needs to be stored in the cold shock chamber 103 and the hot shock chamber 104. After the energy storage is completed, the temperature shock of the tested component between the high and low chambers is realized by moving the position of the part hanging basket 105. After the detection is completed, the part can be taken out.

[0019] Specifically, four air flow channels 201 are equidistantly arranged on the inner side of the hot and cold exchange box 200, and one end of the air flow channel 201 is at the inner top of the hot and cold shock box 100, and the other end of the air flow channel 201 is located at the inner bottom of the hot and cold shock box 100. The air flow channel 201 includes a hot flow channel 202 and a cold flow channel 203, and the hot flow channel 202 and the cold flow channel 203 are symmetrically arranged. An exchange fan 204 is fixedly installed in the air flow channel 201, and the exchange fan 204 is arranged at the top of the air flow channel 201 to form the hot flow channel 202, and the exchange fan 204 is arranged at the bottom of the air flow channel 201 to form the cold flow channel 203. After the detection of the device is completed, the device needs to manually or automatically restore the temperature in the cold shock chamber 103 and the hot shock chamber 104 to be stable. Since this process is slow, in order to speed up the temperature return to normal temperature, the hot and cold exchange box 200 can be started. The exchange fan 204 is located in the convection channel, and the airflow channel 201 is set in the convection channel, and the two ends of the airflow channel 201 are respectively connected to the cold shock chamber 103 and the hot shock chamber 104. At the same time, the exchange fans 204 are installed on one side of the cold shock chamber 103 and the hot shock chamber 104 in the convection channel. The exchange fans 204 can pump the cold and hot airflows to the cavity on the other side through the airflow channel 201 when working. At the same time, the exchange fan 204 is set on one side of the cold shock chamber 103 to form a hot flow channel 202. When the exchange fan 204 is set in the airflow channel 201 on one side of the hot shock chamber 104, a cold flow channel 203 is formed. The cold flow channel 203 and the hot flow channel 202 can accelerate the airflow communication in the cold shock chamber 103 and the hot shock chamber 104, thereby mixing the cold and hot airflows, accelerating the temperature stabilization, and further improving the practicality of the device.

[0020] Embodiment 2 See also Figure 1 and Figure 2 The present invention provides a technical solution: a hot and cold shock test box for automobile parts inspection, the opening and closing assembly includes a lifting and adjusting seat 205 arranged on the outside of the hot and cold shock box body 100, the lifting and adjusting seat 205 is provided with a lifting motor 207 for driving, and the inner side of the hot and cold shock box body 100 is located on the surface of the hot and cold exchange box 200 and is provided with a closing baffle 211 driven to lift by the lifting motor 207, the closing baffle 211 is installed on the surface of the hot and cold exchange box 200 for opening and closing, and a sealing bearing 206 is installed on the inner side of the lifting and adjusting seat 205, one end of the lifting motor 207 is located on the inner side of the lifting and adjusting seat 205 and is provided with a lifting threaded rod 208, the lifting threaded rod 208 penetrates the sealing bearing 206, and at the same time, a lifting limit groove 209 is opened on the inner wall of the hot and cold shock box body 100 at the lifting and adjusting seat 205, and a lifting block 210 driven by a thread is installed in the lifting limit groove 209 on the lifting threaded rod 208.

[0021] Specifically, a closing baffle 211 is provided on the front surface of the lifting block 210 located on the cold and hot exchange box 200, and the closing baffle 211 is driven to rise and fall by the lifting motor 207, and the cold and hot exchange box 200 is opened and closed by the closing baffle 211. At the same time, during the impact test of the device, in order to prevent the cold and hot air flows from being exchanged through the air flow channel 201, the lifting motor 207 on the lifting adjustment seat 205 can drive the inner lifting threaded rod 208 to rotate during operation. When the lifting threaded rod 208 rotates, the lifting block 210 is driven to rise and fall in the lifting limit groove 209 through the thread. At the same time, when the lifting block 210 is lifted and lowered, it drives the closing baffle 211 to block the two ends of the heat flow channel 202 on the cold and hot exchange box 200 to avoid air flow exchange during the impact test. After the impact test, the lifting motor 207 can drive the closing baffle 211 to open, so as to exchange the cold and hot air flows, thereby better ensuring the stability and practicality of the device.

[0022] Embodiment 3 See also Figure 1 and Figure 3 The present invention provides a technical solution: a hot and cold shock test box for automobile parts testing, wherein the buffer assembly comprises a buffer seat 300, on which a buffer support plate 301 for supporting the parts hanging basket 105 for buffering when the parts hanging basket 105 descends is arranged; the buffer seat 300 is installed at the inner bottom of the hot and cold shock box body 100, a buffer spring 304 is arranged at the inner bottom of the buffer seat 300, a spiral rod 302 is installed at the inner top of the buffer seat 300, and a buffer support plate 301 is installed at the top of the spiral rod 302, specifically, a spiral protrusion 303 is arranged on the surface of the spiral rod 302, a spiral groove is opened on the inner surface of the buffer seat 300, and the spiral rod 302 and the buffer seat 300 are limitedly assembled by the spiral protrusion 303 and the spiral groove. During the impact test, the parts hanging basket 105 is lifted and hoisted by the lifting chain 107. When the parts hanging basket 105 is lifted and hoisted, the lifting chain 107 is used to lift and hoist the parts. When the basket 105 falls into the heat shock chamber 104, a certain impact will be generated when the top of the part basket 105 contacts the cavity partition 106. By setting a buffer seat 300 at the bottom of the heat shock chamber 104, when the part basket 105 drops to a predetermined height, the bottom of the part basket 105 contacts the buffer support plate 301. The buffer support plate 301 is subjected to pressure after contact and transmits the pressure to the spiral protrusion 303. The spiral protrusion 303 spirally descends in the buffer seat 300 through the spiral rod 302. At the same time, during the spiral descent, the buffer spring 304 is squeezed to deform and generate a push-back force, so that the bottom of the part basket 105 is supported by the buffer support plate 301, so that the part basket 105 slowly descends, avoiding the collision of the part basket 105 with the cavity partition 106 when it descends, thereby ensuring the stability and safety of the device during the experiment.

[0023] Embodiment 4 See also Figure 1 , Figure 5 and Figure 6 The present invention provides a technical solution: a hot and cold shock test box for automobile parts testing, the clamping assembly includes a part stabilizing clamp 401 installed on the inner side of the part hanging basket 105, and also includes an adjustment assembly for adjusting the part stabilizing clamp 401. A part placing partition 400 is arranged on the inner side of the part hanging basket 105, and a clamping limit groove 402 is opened on the surface of the part placing partition 400. A clamping screw 403 is installed on the inner side of the clamping limit groove 402, and one end of the clamping screw 403 is located on one side of the part placing partition 400 and a rotating rod 405 is arranged.

[0024] Specifically, two part stabilizing clamps 401 are symmetrically installed on the top of the part placement partition 400, and a threaded moving block 404 is arranged at the bottom of the part stabilizing clamp 401, and the threaded moving block 404 is arranged in the clamping limit groove 402 and is screwed through by the clamping screw 403. In addition, when the experimental parts are placed on the part placement partition 400 inside the part hanging basket 105, during the lifting process of the part hanging basket 105, the parts may shake and deviate or fall off the part placement partition 400 and collide. By setting the part stabilizing clamp 401 on the part placement partition 400, when After the parts are prevented, the rotating rod 405 can be rotated, and the rotating rod 405 drives the clamping screw 403 in the clamping limit groove 402 to rotate. When the clamping screw 403 rotates, the threaded moving block 404 at the bottom of the part stabilizing clamp 401 is driven to move through the thread. At the same time, the threaded moving block 404 will also drive the part stabilizing clamp 401 to clamp the parts placed on the top of the part placement partition 400, thereby ensuring the stability of the part placement of the part hanging basket 105 during the lifting process, avoiding parts from being damaged by bumps due to instability, and better performing experiments, further improving the practicability of the device.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal shock test chamber for automobile parts testing, characterized in that: It comprises a cold and hot shock box (100), wherein a parts hanging basket (105) for placing test parts is arranged on the inner side of the cold and hot shock box (100), and a flow conversion component for gas exchange is also arranged on one side of the inner wall of the cold and hot shock box (100); A flow conversion component comprising a cold and hot exchange box (200) fixed on the inner wall of a cold and hot shock box (100), wherein an air flow channel (201) through which air flows is provided inside the cold and hot exchange box (200); An opening and closing component; comprising a lifting and adjusting seat (205) arranged outside a cold and hot shock box (100); a lifting and adjusting seat (205) is provided with a lifting motor (207) for driving; and a closing baffle (211) driven to rise and fall by the lifting motor (207) is provided on the inner side of the cold and hot shock box (100) and on the surface of the cold and hot exchange box (200); the closing baffle (211) is installed on the surface of the cold and hot exchange box (200) for opening and closing; Buffer components; It comprises a buffer seat (300), on which a buffer support plate (301) is provided for supporting the parts hanging basket (105) to provide buffering when the parts hanging basket (105) descends; Clamping assembly; It comprises a part stabilizing clamping plate (401) installed inside a part hanging basket (105), and also comprises an adjusting component for adjusting the part stabilizing clamping plate (401).

2. The thermal shock test chamber for automobile parts testing according to claim 1, characterized in that: Four airflow channels (201) are equidistantly arranged on the inner side of the cold and hot exchange box (200), and one end of the airflow channel (201) is at the inner top of the cold and hot shock box (100), while the other end of the airflow channel (201) is at the inner bottom of the cold and hot shock box (100).

3. The thermal shock test chamber for automobile parts testing according to claim 2, characterized in that: The airflow channel (201) comprises a hot flow channel (202) and a cold flow channel (203), and the hot flow channel (202) and the cold flow channel (203) are symmetrically arranged. An exchange fan (204) is arranged in the airflow channel (201), and the exchange fan (204) is arranged at the top of the airflow channel (201) to form the hot flow channel (202), and the exchange fan (204) is arranged at the bottom of the airflow channel (201) to form the cold flow channel (203).

4. The thermal shock test chamber for automobile parts testing according to claim 1, characterized in that: A sealed bearing (206) is installed on the inner side of the lifting adjustment seat (205); one end of the lifting motor (207) is located on the inner side of the lifting adjustment seat (205) and is provided with a lifting threaded rod (208); the lifting threaded rod (208) penetrates the sealed bearing (206); and a lifting limit groove (209) is provided on the inner wall of the hot and cold shock box (100) at the lifting adjustment seat (205); and a lifting block (210) driven by a thread is installed on the lifting threaded rod (208) in the lifting limit groove (209).

5. The thermal shock test chamber for automobile parts testing according to claim 4, characterized in that: A closing baffle (211) is provided on the lifting block (210) on the front surface of the cold and heat exchange box (200), and the closing baffle (211) is driven to rise and fall by a lifting motor (207), and the cold and heat exchange box (200) is opened and closed by the closing baffle (211).

6. The thermal shock test chamber for automobile parts testing according to claim 1, characterized in that: A buffer seat (300) is installed at the inner bottom of the cold and hot shock box (100), a buffer spring (304) is provided at the inner bottom of the buffer seat (300), a spiral rod (302) is installed at the inner top of the buffer seat (300), and a buffer support plate (301) is installed at the top of the spiral rod (302).

7. A thermal shock test chamber for automobile parts testing according to claim 6, characterized in that: The surface of the spiral rod (302) is provided with a spiral protrusion (303), the inner surface of the buffer seat (300) is provided with a spiral groove, and the spiral rod (302) and the buffer seat (300) are limitedly assembled by the spiral protrusion (303) and the spiral groove.

8. The thermal shock test chamber for automobile parts testing according to claim 1, characterized in that: A part placement partition (400) is arranged on the inner side of the part hanging basket (105), a clamping limit groove (402) is provided on the surface of the part placement partition (400), a clamping screw (403) is installed on the inner side of the clamping limit groove (402), and a rotating rod (405) is arranged on one end of the clamping screw (403) and located on one side of the part placement partition (400).

9. The thermal shock test chamber for automobile parts testing according to claim 8, characterized in that: Two part stabilizing clamps (401) are symmetrically mounted on the top of the part placement partition (400), and a threaded moving block (404) is disposed at the bottom of the part stabilizing clamp (401). The threaded moving block (404) is disposed in the clamping limit groove (402) and is screwed through by the clamping screw (403).

10. The thermal shock test chamber for automobile parts testing according to claim 1, characterized in that: A cavity partition (106) is installed on the inner side of the cold and hot shock box (100); a cold shock chamber (103) is arranged on the inner top of the cold and hot shock box (100); a hot shock chamber (104) is arranged on the inner bottom of the cold and hot shock box (100); the cold shock chamber (103) is separated from the hot shock chamber (104) by the cavity partition (106); a lifting groove is provided on the cavity partition (106); the parts hanging basket (105) passes through the lifting groove; and a lifting chain (107) for lifting is also provided on the top of the parts hanging basket (105); a box cover plate (102) is installed on one side of the front surface of the cold and hot shock box (100); and an operation box (101) is installed on the top of the other side of the front surface of the cold and hot shock box (100).

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