Hot plate uniformity detection device

Abstract

The invention belongs to the technical field of hot plate detection equipment. The hot plate uniformity detection device comprises a pair of detection plates; the temperature detection assembly comprises a plurality of detection units and a driving unit, the plurality of detection units are circumferentially and uniformly arranged on the end surface of the detection plate and are in sliding fit with the detection plate, and the driving unit is in transmission connection with the plurality of detection units so as to drive the plurality of detection units to synchronously move on the detection plate; and the positioning unit is arranged above the position between the pair of detection plates, the clamping end of the positioning unit clamps a hot plate, and the hot plate is located in the middle of the pair of detection plates. According to the invention, the hot plate can be positioned by using the positioning unit, so that the hot plate is located at the middle position of the pair of detection plates, the driving unit is matched with the plurality of detection units, the temperature detection of different positions of the hot plate is realized, manual point-by-point measurement is not needed in the process, the measurement speed is high, and the measurement accuracy is high; and the measurement efficiency is improved on the basis of ensuring normal measurement of the hot plate.

Description

Technical Field

[0001] The invention belongs to the technical field of hot plate detection equipment, and in particular relates to a hot plate uniformity detection device. Background Art

[0002] Butt fusion welding machine is a special welding equipment that uses hot-melt butt technology to weld thermoplastic pipes and fittings. It consists of a hydraulic operating console, welding frame and fixture, electric heating plate, electric milling cutter, etc. The production of hot-melt butt welding machines needs to be tested in accordance with the standards.

[0003] When testing the uniformity of the hot plate, the temperature of 48 points on the two sides of the hot plate is measured under three environmental conditions according to the standard requirements. Currently, most of the measurements on the market are performed point by point using contact thermometers, which are slow and inefficient and cannot adapt to mass production. In addition, point-by-point measurement requires manual measurement at the points specified by the standard, and these points also need to be drawn in advance according to the standard requirements, which undoubtedly further reduces the measurement efficiency. At the same time, there are errors in manual measurement, which ultimately affects the measurement results of the hot plate. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a hot plate uniformity detection device, which can use a positioning unit to position the hot plate so that the hot plate is located in the middle position of a pair of detection plates, and then use a driving unit to cooperate with multiple detection units to realize temperature detection of different positions of the hot plate. In this process, no manual point-by-point measurement is required, the measurement speed is fast, and the measurement accuracy is high, which improves the measurement efficiency while ensuring normal measurement of the hot plate.

[0005] To achieve the above object, the present invention provides a hot plate uniformity detection device, comprising:

[0006] A pair of detection plates;

[0007] The temperature detection assembly comprises a plurality of detection units and a driving unit, wherein the plurality of detection units are evenly arranged on the end surface of the detection plate in the circumferential direction and are slidably matched with the detection plate, and the driving unit is transmission-connected with the plurality of detection units to drive the plurality of detection units to move synchronously on the detection plate;

[0008] The positioning unit is arranged above the pair of detection plates, and the clamping end of the positioning unit clamps a hot plate, and the hot plate is located in the middle of the pair of detection plates. Both sides of the hot plate are respectively matched with the multiple detection units on the pair of detection plates.

[0009] Furthermore, it also includes a lifting unit, which is arranged above a pair of the detection plates, and the movable end of the lifting unit is connected to the positioning unit. The movable end of the lifting unit is configured to drive the positioning unit to move in a vertical direction so that the hot plate is located between the pair of the detection plates.

[0010] Furthermore, it also includes a hoisting unit, which is arranged above the positioning unit, and the hoisting end of the hoisting unit is connected to the positioning unit. The hoisting unit is configured to hoist the positioning unit to the movable end of the lifting unit.

[0011] Further, the positioning unit comprises: a centering fixing bracket, and two centering fixing blocks are fixed on one side wall;

[0012] A cross-shaped slide rail, with the vertical support end located between the two centering fixed blocks;

[0013] A pair of clamps are connected to the bottom of the vertical support end of the cross-shaped slide rail, and the pair of clamps are configured to clamp and fix the top of the hot plate.

[0014] Further, it also includes: a pair of racks;

[0015] A pair of polished rods are arranged between the pair of frames and the two ends are respectively fixed to the pair of frames, and the pair of detection plates are penetrated and slidably matched on the polished rods;

[0016] A pair of horizontal lead screws are arranged between the pair of frames and the two ends are respectively connected to the pair of frames for rotation. A pair of detection plates are sleeved on the horizontal lead screws. The horizontal lead screws are connected to the detection plates for rotation. The pair of detection plates move in opposite directions through the horizontal lead screws.

[0017] Furthermore, it also includes a displacement sensor fixed on one end of the detection plate close to the hot plate, and the displacement sensor is configured to obtain the distance between the detection unit and the hot plate.

[0018] Further, a plurality of first through slots are formed on the end surface of the detection plate, and the detection unit comprises: a first sensor slider, which is arranged in the first through slot and slidably cooperates with the detection plate through the first through slot;

[0019] A first temperature sensor is fixed on a side of the first sensor slider close to the hot plate.

[0020] Further, the driving unit includes: a servo electric cylinder, fixed to a side of the detection plate away from the hot plate through a first electric cylinder bracket;

[0021] The sensor main push rod has one end hinged to the telescopic end of the servo electric cylinder and the other end hinged to the first sensor slider.

[0022] Further, a plurality of second through grooves are formed in the end face of the detection plate, and the detection unit includes: a second sensor slider disposed in the second through groove and slidably engaged with the detection plate through the second through groove;

[0023] Three second temperature sensors are fixed to one side of the second sensor slider close to the hot plate.

[0024] Further, the driving unit includes: a servo motor fixed to one side of the detection plate away from the hot plate through a second electric cylinder bracket;

[0025] An Archimedes spiral disk is fixed to the output end of the servo motor. A slide rail is fixed to the end face of the second sensor slider close to the Archimedes spiral disk, and the slide rail is slidably engaged with the Archimedes spiral disk.

[0026] Compared with the prior art, the present invention has the following advantages and technical effects:

[0027] The positioning unit is used to position the hot plate so that the hot plate is located at the middle position between a pair of detection plates. Then, the driving unit is used in cooperation with a plurality of detection units to realize temperature detection at different positions of the hot plate. During this process, it is not necessary to measure point by point manually, and the measurement speed is fast and the measurement accuracy is high, which improves the measurement efficiency on the basis of ensuring the normal measurement of the hot plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings:

[0029] Figure 1 is a perspective view of the detection device;

[0030] Figure 2 is a schematic diagram of the positional relationship between the first sensor slider and the detection plate;

[0031] Figure 3 is a schematic diagram of the structure of the positioning unit;

[0032] Figure 4 is a perspective view of the positional relationship between the cross-shaped slide rail and the centering fixing block;

[0033] Figure 5 is a perspective view of the clamping pliers;

[0034] Figure 6 is a perspective view of the connection relationship between the Archimedes spiral disk and the servo motor;

[0035] Figure 7 is a schematic diagram of the positional relationship between the slide rail and the second sensor slider;

[0036] Figure 8 It is a stereogram of the Archimedean spiral;

[0037] Among them, 1-detection plate, 2-positioning unit, 201-centering fixed bracket, 202-centering fixed block, 203-cross slide rail, 204-clamping clamp, 205-ring, 206-cross plate, 3-hot plate, 4-lifting unit, 401-frame, 402-lifting motor, 403-vertical screw, 404-lifting plate, 405-rack, 5-hoisting unit, 501-hoisting frame, 502-electric hoist bracket, 503-electric hoist, 5 04-hook, 6-frame, 7-light rod, 8-horizontal screw, 9-displacement sensor, 10-first through slot, 11-first sensor slider, 12-first temperature sensor, 13-servo electric cylinder, 14-first electric cylinder bracket, 15-sensor main push rod, 17-second through slot, 18-second sensor slider, 19-second temperature sensor, 20-servo motor, 21-second electric cylinder bracket, 22-Archimedes spiral coil, 23-slide rail. DETAILED DESCRIPTION

[0038] 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.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Reference Figures 1 - 8 The present invention provides a hot plate uniformity detection device, comprising: a pair of detection plates 1; a temperature detection assembly, comprising a plurality of detection units and a driving unit, wherein the plurality of detection units are uniformly arranged on the end surface of the detection plate 1 in a circumferential direction and slidably cooperate with the detection plate 1, and the driving unit is transmission-connected with the plurality of detection units to drive the plurality of detection units to move synchronously on the detection plate 1.

[0041] Specifically, a plurality of detection units are arranged on the detection plate 1, and the plurality of detection units are circumferentially evenly arranged and distributed in the same circumferential direction. The detection units are slidably matched with the detection plate 1. Driven by the driving unit, the plurality of detection units can move synchronously on the detection plate 1 and the movement distance is equal, thereby ensuring that different positions of the hot plate 3 are measured.

[0042] The positioning unit 2 is arranged above the space between a pair of detection plates 1. The clamping end of the positioning unit 2 clamps a hot plate 3. The hot plate 3 is located at the middle position between the pair of detection plates 1. The two sides of the hot plate 3 respectively correspond and match with a plurality of detection units on the pair of detection plates 1.

[0043] Specifically, the positioning unit 2 is used to clamp the hot plate 3 and position the hot plate 3 so that the hot plate 3 is located at the middle position between the pair of detection plates 1, making the distances between the hot plate 3 and the detection units on the pair of detection plates 1 equal, thus ensuring the measurement accuracy.

[0044] In this embodiment, referring to Figure 1 , Figure 3 , it further includes a lifting unit 4, which is arranged above the space between the pair of detection plates 1. The movable end of the lifting unit 4 is connected to the positioning unit 2. The movable end of the lifting unit 4 is configured to drive the positioning unit 2 to move in the vertical direction so that the hot plate 3 is located between the pair of detection plates 1.

[0045] Specifically, the movable end of the lifting unit 4 is connected to the positioning unit 2. By lifting and lowering the movable end of the lifting unit 4 in the vertical direction, the positioning unit 2 is driven to lift and lower, so that the hot plate 3 is located between the pair of detection plates 1 or moves away from between the detection plates 1. When measuring the hot plate 3, the movable end of the lifting unit 4 descends, driving the hot plate 3 to descend so that the hot plate 3 is located between the pair of detection plates 1. After the measurement of the hot plate 3 is completed, the movable end of the lifting unit 4 ascends, driving the hot plate 3 to ascend so that the hot plate 3 moves away from between the pair of detection plates 1 and is located above the space between the pair of detection plates 1. Then, another hot plate 3 can be replaced.

[0046] In a specific embodiment of the present invention, the lifting unit 4 includes a frame 401 fixed on the centering fixed bracket 201. A lifting motor 402 is fixed at the top end of the frame 401. The output end of the lifting motor 402 is connected to a vertical lead screw 403. The vertical lead screw 403 passes through the frame 401 and is rotatably connected to the frame 401. A lifting plate 404 is sleeved on the vertical lead screw 403. The lifting plate 404 is threadedly connected to the vertical lead screw 403 and is in limit sliding connection with the frame 401. A pair of support rods 405 are fixed on the end face of the lifting plate 404. The vertical support end of the cross-shaped slide rail 203 is located between the pair of support rods 405, and the horizontal support end of the cross-shaped slide rail 203 is erected on the top surfaces of the pair of support rods 405.

[0047] Under the above structural arrangement, the lifting plate 404 ascends and descends along the frame 401 under the action of the vertical lead screw 403. The cross-shaped slide rail 203 is erected on the support rods 405. The cross-shaped slide rail 203 and the hot plate 3 can be driven to ascend and descend through the lifting plate 404.

[0048] Alternatively, the lifting unit 4 is a conventional cylinder structure. A pair of support rods 405 are fixed on the telescopic end of the cylinder, which can drive the positioning unit 2 and the hot plate 3 to ascend and descend.

[0049] In this embodiment, with reference to Figure 1 and Figure 3 , it further includes a hoisting unit 5, which is arranged above the positioning unit 2. The hoisting end of the hoisting unit 5 is connected to the positioning unit 2, and the hoisting unit 5 is configured to hoist the positioning unit 2 to the movable end of the lifting unit 4.

[0050] Specifically, the hoisting unit 5 is used to hoist and move the positioning unit 2, thereby driving the hot plate 3 to move.

[0051] In a specific embodiment of the present invention, the hoisting unit 5 includes a hoisting frame 501. The centering and fixing bracket 201 is fixed in the middle of the hoisting frame 501. An electric hoist bracket 502 is fixed at the top of the hoisting frame 501. An electric hoist 503 is connected to the electric hoist bracket 502. The end of the electric hoist 503 is connected to a hook 504. The hook 504 cooperates with the collar 205 at the top of the cross-shaped slide rail 203 to realize the hoisting of the cross-shaped slide rail 203.

[0052] Alternatively, the hoisting unit 5 is other types of lifting tools that can hoist the cross-shaped slide rail 203.

[0053] In this embodiment, with reference to Figure 3 and Figure 4 , the positioning unit 2 includes: a centering and fixing bracket 201, with two centering and fixing blocks 202 fixed on one side wall; a cross-shaped slide rail 203, whose vertical support end is located between the two centering and fixing blocks 202; a pair of clamping pliers 204, connected to the bottom of the vertical support end of the cross-shaped slide rail 203, and the pair of clamping pliers 204 are configured to clamp and fix the top of the hot plate 3.

[0054] Specifically, the centering and fixing bracket 201 is used to fix the two centering and fixing blocks 202. The space between the two centering and fixing blocks 202 corresponds to and matches with a pair of detection plates 1. Therefore, the cross-shaped slide rail 203 is hoisted to the space between the two centering and fixing blocks 202 by using the electric hoist 503. Then, the cross-shaped slide rail 203 is lowered. With the cooperation of the two centering and fixing blocks 202, the positioning of the hot plate 3 can be realized, thereby achieving the left-right centering of the hot plate 3. When the cross-shaped slide rail 203 continues to descend, the cross brace end of the cross-shaped slide rail 203 contacts a pair of support rods 405, and then the movement of the hot plate 3 is controlled by the vertical lead screw 403.

[0055] Among them, after the cross brace end of the cross-shaped slide rail 203 contacts a pair of support rods 405, the electric hoist 503 can continue to move down a certain distance to facilitate the separation of the hook 504 from the collar 205.

[0056] In a specific embodiment of the present invention, a cross plate 206 is fixed to the bottom of the vertical support end of the cross-shaped slide rail 203, and a pair of clamping pliers 204 are slidably fitted on the cross plate 206. Two telescopic cylinders can be arranged on the cross plate 206, and one telescopic cylinder is connected to one clamping plier 204 to realize the clamping and fixing of the hot plate 3.

[0057] Alternatively, bolt holes are provided on the two clamping pliers 204. Bolts are inserted into the two bolt holes manually, and the distance between the two clamping pliers 204 is adjusted by the bolts to realize the clamping and fixing of the hot plate 3 by the two clamping pliers 204.

[0058] In this embodiment, referring to Figure 1 , it further includes: a pair of frames 6; a pair of optical rods 7, arranged between the pair of frames 6 and fixed to the pair of frames 6 at both ends respectively, and a pair of detection plates 1 are slidably fitted through the optical rods 7; a pair of horizontal lead screws 8, arranged between the pair of frames 6 and rotatably connected to the pair of frames 6 at both ends respectively, the pair of detection plates 1 are sleeved on the horizontal lead screws 8, the horizontal lead screws 8 are rotatably connected to the detection plates 1, and the pair of detection plates 1 move in opposite directions through the horizontal lead screws 8.

[0059] Specifically, the frames 6 and the optical rods 7 cooperate to support the pair of detection plates 1. A horizontal lead screw 8 is arranged through the detection plates 1. By driving the horizontal lead screw 8 to rotate through an external sprocket, the pair of detection plates 1 can be moved closer to or away from each other, and thus the distance between the detection unit and the hot plate 3 can be changed to be applicable to different working conditions for measurement.

[0060] In this embodiment, referring to Figure 2 , it further includes a displacement sensor 9, fixed to one end of the detection plate 1 close to the hot plate 3, and the displacement sensor 9 is configured to obtain the distance between the detection unit and the hot plate 3.

[0061] Specifically, the displacement sensor 9 is used to measure the distance between the detection unit and the hot plate 3, and the distance between the detection end of the displacement sensor 9 and the hot plate 3 should be equal to the distance between the detection end of the detection unit and the hot plate 3.

[0062] In this embodiment, referring to Figure 2 , a plurality of first through grooves 10 are provided on the end face of the detection plate 1, and the detection unit includes: a first sensor slider 11, arranged in the first through grooves 10 and slidably fitted with the detection plate 1 through the first through grooves 10; a first temperature sensor 12, fixed to the side of the first sensor slider 11 close to the hot plate 3.

[0063] In this embodiment, referring to Figure 2 , the driving unit includes: a servo electric cylinder 13, fixed to the side of the detection plate 1 away from the hot plate 3 through a first electric cylinder bracket 14; a sensor main push rod 15, with one end hinged to the telescopic end of the servo electric cylinder 13 and the other end hinged to the first sensor slider 11.

[0064] Specifically, the servo electric cylinder 13 is fixed on the detection plate 1 through the first electric cylinder bracket 14. The servo electric cylinder 13 moves along the optical rod 7 following the detection plate 1. The first through groove 10 is used to limit the first sensor slider 11, so that the first sensor slider 11 can only move along the extension direction of the first through groove 10 under the action of the servo electric cylinder 13 and the sensor main push rod 15, thereby changing the position of the first temperature sensor 12.

[0065] Among them, there are eight first through grooves 10, and each first through groove 10 is provided with a first sensor slider 11. Therefore, with this structural arrangement, a total of 16 points on both end faces of the hot plate 3 can be measured at one time. After the first batch of measurements is completed, the servo electric cylinder 13 is started. The telescopic end of the servo electric cylinder 13 expands and contracts to drive the sensor main push rod 15 to move, and the sensor main push rod 15 drives the first sensor slider 11 to move, thereby changing the corresponding position between the first temperature sensor 12 and the hot plate 3. Subsequently, the second batch of 16-point measurements is carried out. After the measurements are completed, the servo electric cylinder 13 is started again to change the corresponding position between the first temperature sensor 12 and the hot plate 3, and the third batch of 16-point measurements is carried out.

[0066] Among them, the model structure of the servo electric cylinder 13 is not limited, that is, it can be the electric cylinder structure shown in Figure 1 or the electric cylinder structure shown in Figure 2 .

[0067] In this embodiment, referring to Figure 6 , Figure 7 , Figure 8 , a plurality of second through grooves 17 are formed on the end face of the detection plate 1. The detection unit includes: a second sensor slider 18, which is arranged in the second through groove 17 and is slidably matched with the detection plate 1 through the second through groove 17; three second temperature sensors 19, which are fixed on the side of the second sensor slider 18 close to the hot plate 3.

[0068] In this embodiment, referring to Figure 6 , Figure 7 , Figure 8 , the driving unit includes: a servo motor 20, which is fixed on the side of the detection plate 1 far from the hot plate 3 through the second electric cylinder bracket 21; an Archimedes spiral disk 22, which is fixed on the output end of the servo motor 20. A slide rail 23 is fixed on the end face of the second sensor slider 18 close to the Archimedes spiral disk 22, and the slide rail 23 is slidably matched with the Archimedes spiral disk 22.

[0069] Specifically, the servo motor 20 is fixed on the detection board 1 through the second cylinder bracket 21. The servo motor 20 moves along the optical rod 7 following the detection board 1. The second through groove 17 is used to limit the second sensor slider 18, so that the second sensor slider 18 can only move along the extension direction of the second through groove 17 under the action of the servo motor 20 and the Archimedes spiral disk 22, thereby changing the position of the second temperature sensor 19.

[0070] Among them, there are eight second through grooves 17. Each second through groove 17 has a second sensor slider 18, and each second sensor slider 18 has three second temperature sensors 19. With this structure, 48 points on the hot plate 3 can be measured at one time.

[0071] Among them, an Archimedes spiral is arranged on the end face of the Archimedes spiral disk 22, and the slide rail 23 is used in cooperation with the Archimedes spiral. Therefore, when the servo motor 20 drives the Archimedes spiral disk 22 to rotate, the second sensor slider 18 moves along the second through groove 17, thereby changing the position of the second temperature sensor 19. With this structure, when the size of the hot plate 3 changes, on the basis of improving the measurement efficiency, the effective measurement of the hot plate 3 can be ensured.

[0072] Furthermore, the peripheral sprocket drives the horizontal lead screw 8 to rotate, and the operation of the servo cylinder 13 is controlled by the PLC control system. The detected temperatures of the first temperature sensor 12 and the second temperature sensor 19 are displayed digitally on the display screen of the computer control terminal. At the same time, the computer control terminal has a database to compare the detected temperature with the preset temperature in the database. When the comparison result shows that there is a defect in the hot plate 3, an alarm such as a sound and light alarm can be issued to remind the operator.

[0073] Furthermore, a ccd camera detection mechanism is provided corresponding to the hot plate 3. Its function is to judge the model of the hot plate 3 and feedback the model of the hot plate 3 to the PLC control system to control the distance between the first temperature sensor 12 and the second temperature sensor 19 and the hot plate 3. The reason is that when the model of the hot plate 3 changes, its size and thickness may change. Therefore, a ccd camera detection mechanism is set up to meet the detection of hot plates 3 of different models.

[0074] Furthermore, during the detection process, the data of the hot plate 3 is automatically recorded and an inspection report is automatically generated to reduce the deviation caused by human factors.

[0075] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A hot plate uniformity detection device, characterized in that: Comprising: A pair of detection plates (1); A temperature detection assembly, including a plurality of detection units and a driving unit. The plurality of detection units are circumferentially and uniformly arranged on the end face of the detection plate (1) and are in sliding fit with the detection plate (1). The driving unit is in transmission connection with the plurality of detection units to drive the plurality of detection units to move synchronously on the detection plate (1); A positioning unit (2), arranged above between the pair of detection plates (1). The clamping end of the positioning unit (2) clamps a hot plate (3). The hot plate (3) is located at the middle position between the pair of detection plates (1). Both sides of the hot plate (3) respectively correspond and match with the plurality of detection units on the pair of detection plates (1).

2. The hot plate uniformity detection device according to claim 1, wherein: It further includes a lifting unit (4), arranged above between the pair of detection plates (1). The movable end of the lifting unit (4) is connected to the positioning unit (2). The movable end of the lifting unit (4) is configured to drive the positioning unit (2) to move in the vertical direction so that the hot plate (3) is located between the pair of detection plates (1).

3. The hot plate uniformity detection device according to claim 2, characterized in that: It further includes a hoisting unit (5), arranged above the positioning unit (2). The hoisting end of the hoisting unit (5) is connected to the positioning unit (2). The hoisting unit (5) is configured to hoist the positioning unit (2) to the movable end of the lifting unit (4).

4. The hot plate uniformity detection device according to claim 1, wherein: The positioning unit (2) includes: a centering fixed bracket (201), with two centering fixed blocks (202) fixed on one side wall; A cross-shaped slide rail (203), the vertical support end of which is located between the two centering fixed blocks (202); A pair of clamping pliers (204), connected to the bottom of the vertical support end of the cross-shaped slide rail (203). The pair of clamping pliers (204) are configured to clamp and fix the top of the hot plate (3).

5. The hot plate uniformity detection device according to claim 1, characterized in that: It further includes: A pair of frames (6); A pair of optical rods (7), arranged between the pair of frames (6) and fixed to the pair of frames (6) at both ends respectively. The pair of detection plates (1) are slidably fitted through the optical rods (7); A pair of horizontal lead screws (8), arranged between the pair of frames (6) and rotatably connected to the pair of frames (6) at both ends respectively. The pair of detection plates (1) are sleeved on the horizontal lead screws (8). The horizontal lead screws (8) are rotatably connected to the detection plates (1). The pair of detection plates (1) move in opposite directions through the horizontal lead screws (8).

6. The hot plate uniformity detection device according to claim 1, characterized in that: It further includes a displacement sensor (9), fixed to one end of the detection plate (1) close to the hot plate (3). The displacement sensor (9) is configured to obtain the distance between the detection unit and the hot plate (3).

7. The hot plate uniformity detection device according to claim 1, characterized in that: A plurality of first through grooves (10) are formed on the end face of the detection plate (1). The detection unit includes: a first sensor slider (11), arranged in the first through groove (10) and in sliding fit with the detection plate (1) through the first through groove (10); A first temperature sensor (12), fixed to the side of the first sensor slider (11) close to the hot plate (3).

8. The hot plate uniformity detection device according to claim 7, wherein: The driving unit includes: a servo electric cylinder (13), which is fixed to the side of the detection plate (1) away from the hot plate (3) through a first electric cylinder bracket (14); a sensor main push rod (15), one end of which is hinged to the telescopic end of the servo electric cylinder (13), and the other end of which is hinged to the first sensor slider (11).

9. The hot plate uniformity detection device according to claim 1, wherein: A plurality of second through grooves (17) are formed in the end surface of the detection plate (1). The detection unit includes: a second sensor slider (18), which is arranged in the second through groove (17) and is slidably matched with the detection plate (1) through the second through groove (17); three second temperature sensors (19), which are fixed to the side of the second sensor slider (18) close to the hot plate (3).

10. The hot plate uniformity detection device according to claim 9, wherein: The driving unit includes: a servo motor (20), which is fixed to the side of the detection plate (1) away from the hot plate (3) through a second electric cylinder bracket (21); an Archimedes spiral disc (22), which is fixed to the output end of the servo motor (20). A slide rail (23) is fixed to the end surface of the second sensor slider (18) close to the Archimedes spiral disc (22), and the slide rail (23) is slidably matched with the Archimedes spiral disc (22).

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