Device for detecting inner diameter and outer diameter of automobile cooling pipeline

Abstract

The utility model discloses an automobile cooling pipeline internal and external diameter detection device, and relates to the automobile cooling pipe processing technology field, the automobile cooling pipeline internal and external diameter detection device comprises a fixed detection rod and an adjusting detection rod, one end of the fixed detection rod is symmetrically provided with first detection heads, one end of the adjusting detection rod is provided with a second detection head, and one side of a moving plate is provided with an adjusting assembly. A conveying belt is rotationally arranged on the inner side of the mounting box, a plurality of bearing plates are arranged on the conveying belt, a correcting mechanism is arranged at one end of the inner side of the mounting box, and a clamping mechanism is arranged between the two fixing boxes. The first detection head and the second detection head are arranged at one end of the fixed detection rod and one end of the adjusting detection rod respectively, so that cooling pipes with different diameters can be detected conveniently, the bearing plates are arranged on the conveying belt at equal intervals, continuous detection of the inner diameter and the outer diameter of the automobile cooling pipe is facilitated, and the detection accuracy is improved through the correction mechanism. The position of the cooling pipe in the bearing groove can be conveniently corrected, and the cooling pipe is located in the middle of the bearing groove.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile cooling pipe processing, in particular to an inner and outer diameter detection device for automobile cooling pipes. Background Art

[0002] Cooling pipes play a vital role in the automotive cooling system. Their main functions are to condense, reflux, and transmit coolant to ensure that the engine is adequately cooled. In the production and processing of automotive cooling pipes, the inner diameter and outer diameter are important indicators of whether the automotive cooling pipes meet production requirements. Therefore, after the production of automotive cooling pipes is completed, the inner and outer diameters of the cooling pipes need to be tested. However, most existing testing devices are set on a measuring table. When measuring, the staff is required to manually place the cooling pipe to be tested on the measuring table. After the measurement is completed, the staff needs to remove the cooling pipe before the next workpiece can be tested, which makes it time-consuming and labor-intensive in actual use.

[0003] Based on this, a device for detecting the inner and outer diameters of automobile cooling pipes is now provided, which can eliminate the disadvantages of existing devices. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting the inner and outer diameters of automobile cooling pipes, so as to solve the problem in the background art that it is inconvenient to perform continuous detection on the cooling pipes.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The device for detecting the inner and outer diameters of automobile cooling ducts includes a fixed detection rod and an adjustable detection rod. The two fixed detection rods are symmetrically arranged. One end of each fixed detection rod is symmetrically provided with a first detection head. The fixed detection rod is fixedly arranged on one side of the adjustment tube. Adjustment detection rods are provided on both sides of the fixed detection rod. A second detection head is fixedly provided on one end of the adjustment detection rod near the first detection head. One end of each adjustment detection rod is provided with a threaded plate. The threaded plates are slidably arranged inside the adjustment tube. The adjustment tube is slidably arranged on one side of a movable plate. The two movable plates are respectively arranged inside two fixed boxes. The fixed boxes are respectively arranged on both sides of an installation box. One side of the movable plate is provided with an adjustment assembly for adjusting the detection position of the first detection head and the second detection head. A conveyor belt is rotatably provided inside the installation box. A plurality of bearing plates are arranged in an evenly spaced array on the conveyor belt. The upper ends of the bearing plates are each provided with a bearing slot. One side of the installation box is provided with a drive assembly for driving the conveyor belt to rotate. One end of the installation box is provided with a correction mechanism for correcting the position of the cooling duct in the bearing slot. A clamping mechanism for fixing the cooling duct is provided between the two fixed boxes.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional scheme: the adjusting assembly includes a first bidirectional screw and a first electric push rod, each of the threaded plates is provided with a first threaded hole on one side, and the two threaded plates are symmetrically arranged on the first bidirectional screw, the first bidirectional screw is rotatably arranged inside the adjusting tube, the upper end of the adjusting tube is fixedly connected to the output end of the first electric push rod, the first electric push rod is fixedly arranged on one side of the movable plate, two first sliding holes and a second threaded hole are provided on one side of the movable plate, the two movable plates are arranged on the second bidirectional screw through the second threaded hole, the second bidirectional screw is rotatably arranged on the inner sides of the two fixed boxes, one end of the second bidirectional screw is fixedly connected to the output end of the first motor, the first motor is fixed on one side of a fixed box, a first guide slide rod is slidably provided in the first sliding hole, the first guide slide rods are fixedly arranged on the inner sides of the two fixed boxes, and a controller is provided on the upper end of the fixed box.

[0009] In an optional solution: the driving assembly includes a driving roller and a transmission roller, and the driving roller and the transmission tube are cooperatively arranged at both ends of the transmission belt. The rotating shafts at both ends of the driving roller and the transmission tube are respectively rotated in the rotating holes at both ends of the two retaining plates, and the retaining plates are fixed on the inside of the installation box. The rotating shaft at one end of the driving roller is fixedly connected to the output end of the second motor, and the second motor is fixed on one side of the installation box.

[0010] In an optional scheme: the correction mechanism includes two symmetrically arranged correction plates, one end of each correction plate is inclined, one side of each correction plate is fixed with a first fixing plate, one side of each first fixing plate is provided with a third threaded hole, the first fixing plate is arranged on a third bidirectional screw through the third threaded hole, the third bidirectional screw is rotatably arranged in the mounting hole inside the mounting box, one end of the third bidirectional screw is provided with a rotating handle, second fixing plates are provided on both sides of the first fixing plate, the second fixing plate is fixed on one side of the correction plate, one end of the second fixing plate is provided with a second sliding hole, the coaxial second sliding hole is slidably arranged on a second guide slide rod, the second guide slide rods are fixed on the inside of the mounting box, and the bottom end of the correction plate is at the same height as the upper end of the carrier plate.

[0011] In an optional solution: an anti-slip plate is provided between the two correction plates, one end of the anti-slip plate is tilted, the upper end of the anti-slip plate is fixedly connected to the output ends of the two second electric push rods, the second electric push rods are fixed at the bottom end of the third fixed plate, and the third fixed plates are all fixed on the inner side of the fixed tube.

[0012] In an optional solution: the clamping mechanism includes an extrusion rod, which is arranged under the second bidirectional screw, and both ends of the extrusion rod are fixed with a fourth fixing plate, the upper end of the fourth fixing plate is fixed with a sliding rod, one end of the sliding rod is fixed with a fixing tube, one end of the fixing tube is connected with a mounting tube, a stop plate is sliding in the mounting tube, the stop plate is tightly arranged with the sliding rod, an anti-slip layer is provided on one side of the stop plate, the stop plate is rotatably arranged at one end of the screw, and the screw is rotatably arranged in the fourth threaded hole at one end of the mounting tube, a first support frame is slidably provided on the fixing tube, and the first A support bracket is fixed to the bottom end of the fifth fixed plate, and the fifth fixed plate is fixed to the inside of the mounting box, one end of the fixed tube is fixed with a connecting plate, and the other end of the connecting plate is fixed with a sliding bracket, and the sliding bracket is arranged in an L shape, and a circular plate is fixed on the sliding bracket, and the circular plate is slidably arranged inside the fixed mounting tube, and a return spring is provided between the bottom end of the circular plate and the bottom end of the fixed mounting tube, and a second support bracket is fixed on the fixed mounting tube, and the second support bracket is fixed to the bottom end of the fifth fixed plate, and one end of the sliding bracket is in close contact with the inclined surface of the guide plate, and the guide plate is fixed on one side of the movable plate.

[0013] In an optional solution: auxiliary support rods are symmetrically provided at the bottom end of the supporting plate, and the cross-sections of the auxiliary support rods are T-shaped. The auxiliary support rods are not fixedly connected to the conveyor belt. Fixed shafts are symmetrically provided on both sides of the supporting plate, and rollers are rotatably provided on the fixed shafts. A support plate is fixed on the inner side of the installation box at a position corresponding to the position of the roller at the upper end of the conveyor belt, and the roller at the upper end of the conveyor belt is rolled on the upper end of the support plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model arranges two adjustment detection rods on the first bidirectional screw, so that it is convenient to adjust the distance between the two adjustment detection rods according to the different outer diameters of the cooling pipe. At the same time, the first detection head and the second detection head are both conventional components and will not be described in detail here. At the same time, the first electric push rod drives the first detection head and the second detection head to move so that the fixed detection rod is always in the center of the cooling pipe, and the bearing groove at the upper end of the bearing plate is V-shaped, which makes it convenient to place cooling pipes of various diameters, thereby facilitating the detection of cooling pipes of different diameters, and several bearing plates are arranged at equal intervals on the conveyor belt, and the second motor drives the conveyor belt to rotate intermittently, which makes it convenient to continuously detect the inner and outer diameters of the automobile cooling pipe, and through the correction mechanism, it is convenient to correct the position of the cooling pipe in the bearing groove, so that the cooling pipe is in the middle of the bearing groove, which makes it convenient to detect the inner and outer diameters of the cooling pipe, thereby increasing the practicality of the automobile cooling pipe inner and outer diameter detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present utility model.

[0017] Figure 2 This is a schematic diagram of the installation of the load-bearing plate of the utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the fixing box and the installation box of the utility model.

[0019] Figure 4 This is a schematic diagram of the correction plate and anti-slip plate structure of the utility model.

[0020] Figure 5 This is a schematic diagram of the installation of the third bidirectional screw of the present utility model.

[0021] Figure 6 This is a schematic diagram of the installation of the first detection head and the second detection head of the utility model.

[0022] Figure 7 This is a structural diagram of the sliding frame of the utility model.

[0023] Figure 8 This is a schematic diagram of the installation of the stop plate of the utility model.

[0024] Notes on figure numbers: 11 fixed detection rod, 12 first detection head, 13 adjustment detection rod, 14 second detection head, 15 adjustment tube, 16 first bidirectional screw, 17 first electric push rod, 18 moving plate, 19 second bidirectional screw, 20 first guide slide rod, 21 first motor, 22 fixed box, 23 load-bearing plate, 24 conveyor belt, 25 holding plate, 26 second motor, 27 mounting box, 28 roller, 29 support plate, 30 correction plate, 31 second guide slide rod, 32 third bidirectional screw, 33 anti-slip plate, 34 second electric push rod, 35 extrusion rod, 36 sliding rod, 37 fixed tube, 38 stop plate, 39 sliding frame, 40 return spring, 41 guide plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0026] Example 1

[0027] In one embodiment, Figures 1-8As shown, the inner and outer diameter detection device of the automobile cooling pipe includes a fixed detection rod 11 and an adjustable detection rod 13. The two fixed detection rods 11 are symmetrically arranged. One end of the fixed detection rod 11 is symmetrically provided with a first detection head 12. The fixed detection rod 11 is fixedly arranged on one side of the adjusting tube 15. Adjustment detection rods 13 are provided on both sides of the fixed detection rod 11. A second detection head 14 is fixedly provided at one end of the adjusting detection rod 13 near the first detection head 12. One end of the adjusting detection rod 13 is provided with a threaded plate, and the threaded plates are slidably arranged inside the adjusting tube 15. The adjusting tube 15 is slidably arranged on one side of a movable plate 18. The two movable plates 18 are respectively arranged in two fixed boxes 22. The fixed boxes 22 are respectively arranged on both sides of the installation box 27. One side of the movable plate 18 is provided with a An adjusting component for adjusting the detection position of the measuring head 12 and the second detection head 14, a conveyor belt 24 is rotatably provided inside the installation box 27, a number of carrying plates 23 are arranged in an evenly spaced array on the conveyor belt 24, and a carrying groove is provided on the upper end of each carrying plate 23, and a driving component for driving the conveyor belt 24 to rotate is provided on one side of the installation box 27, and a correction mechanism for correcting the position of the cooling pipe in the carrying groove is provided at one end of the inner side of the installation box 27, and a clamping mechanism for fixing the cooling pipe is provided between the two fixed boxes 22, and the correction mechanism facilitates the correction of the position of the cooling pipe at the upper end of the carrying plate 23, so that the first detection head 12 and the second detection head 14 can be detected, and the clamping mechanism facilitates the clamping and fixing of the cooling pipe when the first detection head 12 and the second detection head 14 detect the cooling pipe;

[0028] The adjusting assembly includes a first bidirectional screw 16 and a first electric push rod 17, one side of the threaded plate is provided with a first threaded hole, the two threaded plates are symmetrically arranged on the first bidirectional screw 16, the first bidirectional screw 16 is rotatably arranged inside the adjusting tube 15, the upper end of the adjusting tube 15 is fixedly connected to the output end of the first electric push rod 17, the first electric push rod 17 is fixedly arranged on one side of the movable plate 18, one side of the movable plate 18 is provided with two first sliding holes and a second threaded hole, the two movable plates 18 are arranged on the second bidirectional screw 19 through the second threaded hole, the second bidirectional screw 19 is rotatably arranged on the inner sides of the two fixed boxes 22, one end of the second bidirectional screw 19 is fixedly connected to the output end of the first motor 21, the first motor 21 is fixedly arranged on one side of a fixed box 22, the first sliding hole is slidably provided with a first guide slide 20, the first guide slide 20 is fixedly arranged on the inner sides of the two fixed boxes 22, the fixed box 22 are provided with a controller at the upper end. During use, when the cooling pipe needs to be inspected, the cooling pipe is placed in the carrying groove, and then the conveyor belt 24 drives the carrying plate 23 to move to the bottom of the second bidirectional screw 19 and then stops, and then the first motor 21 is started, and the output end of the first motor 21 drives the second bidirectional screw 19 to rotate. Under the action of the thread, the second bidirectional screw 19 drives the two movable plates 18 to move at the same time, and the moving directions are opposite. The movable plates 18 drive the fixed detection rod 11 and the adjustment detection rod 13 to move, and then the fixed detection rod 11 moves along the axis of the cooling pipe, and the two first detection heads 12 at one end of the fixed detection rod 11 detect the inner diameter of the cooling pipe, and the second detection heads 14 at one end of the two adjustment detection rods 13 detect the outer diameter of the cooling pipe, and then the first detection head 12 and the second detection head 14 transmit the detection results to the controller. It is worth noting that in this application, the first detection head 12 and the second detection head 14 both use existing components, and the controller belongs to the existing components.

[0029] The driving assembly includes a driving roller and a transmission roller, and the driving roller and the transmission tube are cooperatively arranged at both ends of the conveyor belt 24, and the rotating shafts at both ends of the driving roller and the transmission tube are respectively rotatably arranged in the rotating holes at both ends of the two holding plates 25, and the holding plates 25 are fixedly arranged on the inside of the installation box 27, and the rotating shaft at one end of the driving roller is fixedly connected to the output end of the second motor 26, and the second motor 26 is fixedly arranged on one side of the installation box 27. During use, when the cooling pipe needs to be inspected and transmitted, the second motor 26 drives the conveyor belt 24 to rotate intermittently. When a carrying plate 23 rotates to the loading position and stops, the staff places the cooling pipe to be inspected in the carrying groove at the upper end of the carrying plate 23, and then the second motor 26 drives the conveyor belt 24 to rotate intermittently for multiple times, so that the cooling pipe moves to one end of the fixed detection rod 11, so that the cooling pipe can be inspected.

[0030] The correction mechanism includes two symmetrically arranged correction plates 30, one end of each of the correction plates 30 is tilted, one side of each of the correction plates 30 is fixed with a first fixing plate, one side of each of the first fixing plates is provided with a third threaded hole, the first fixing plate is arranged on a third bidirectional screw 32 through the third threaded hole, the third bidirectional screw 32 is rotatably arranged in the mounting hole inside the mounting box 27, one end of the third bidirectional screw 32 is provided with a rotating handle, both sides of the first fixing plate are provided with a second fixing plate, the second fixing plate is fixedly arranged on one side of the correction plate 30, one end of the second fixing plate is provided with a second sliding hole, and the coaxial second sliding hole is slidably arranged on a second guide slide 31 On the top, the second guide slide bar 31 is fixedly arranged on the inner side of the installation box 27, and the bottom end of the correction plate 30 is at the same height as the upper end of the supporting plate 23. During use, when it is necessary to correct the position of the cooling pipe, the third bidirectional screw 32 is rotated according to the spacing between the cooling pipes. Under the action of the thread, the two first fixed plates move at the same time, and the moving directions are opposite, so that the spacing between the two correction plates 30 is adjusted. When the conveyor belt 24 drives the cooling to pass between the two correction plates 30, since one end of the correction plate 30 is tilted, the correction plate 30 can guide the cooling pipe so that the cooling pipe is between the two correction plates 30, so that the cooling pipe is in the middle position of the supporting plate 23.

[0031] An anti-slip plate 33 is provided between the two correction plates 30. One end of the anti-slip plate 33 is tilted. The upper end of the anti-slip plate 33 is fixedly connected to the output ends of two second electric push rods 34. The second electric push rods 34 are fixedly arranged at the bottom end of the third fixed plate. The third fixed plates are all fixedly arranged on the inner side of the fixed tube 37. During use, when the correction plate 30 is correcting the position of the cooling tube, the output end of the second electric push rod 34 drives the anti-slip plate 33 to move above the cooling tube to prevent the cooling tube from falling out of the bearing groove.

[0032] The first support frame 38 is fixed to the bottom end of the fifth fixing plate, and the fifth fixing plate is fixed to the inner side of the mounting box 27. One end of the fixing tube 37 is fixed to the fourth fixing plate, and one end of the fourth fixing plate is fixed to the upper end of the fourth fixing plate. When the second stop plate 19 is in contact with the second support frame 39, the first stop plate 19 is in contact with the second support frame 39, and the second stop plate 19 is in contact with the second support frame 39.

[0033] Example 2

[0034] The difference from Example 1 is that auxiliary support rods are symmetrically provided at the bottom end of the carrying plate 23, and the cross-section of the auxiliary support rods is T-shaped. The auxiliary support rods are not fixedly connected to the conveyor belt 24. Fixed shafts are symmetrically provided on both sides of the carrying plate 23, and rollers 28 are rotatably provided on the fixed shafts. A support plate 29 is fixed on the inner side of the installation box 27 at a position corresponding to the position of the roller 28 at the upper end of the conveyor belt 24. The roller 28 at the upper end of the conveyor belt 24 is rolled on the upper end of the support plate 29. When in use, it is convenient to support the carrying plate 23 and prevent the conveyor belt 24 from causing large deformation during operation.

[0035] The above embodiment discloses a device for detecting the inner and outer diameters of automobile cooling pipes, wherein when the cooling pipe needs to be inspected and transmitted, the second motor 26 drives the conveyor belt 24 to rotate intermittently. When a carrier plate 23 rotates to the loading position and stops, the staff places the cooling pipe to be inspected in the bearing groove at the upper end of the carrier plate 23. When the conveyor belt 24 drives the cooling to pass between the two correction plates 30, since one end of the correction plate 30 is inclined, the correction plate 30 can guide the cooling pipe so that the cooling pipe is between the two correction plates 30, so that the cooling pipe is in the middle position of the carrier plate 23. After the second motor 26 drives the conveyor belt 24 to rotate intermittently for multiple times, the cooling pipe moves to the bottom of the second bidirectional screw 19, and the first motor 21 drives the second bidirectional screw 19 to rotate. The two movable plates 18 move simultaneously under the action of the thread, and the moving directions are opposite. When the movable plate 18 moves, it drives the guide plate 41 to move. Before the fixed detection rod 11 and one end of the adjustment detection rod 13 move to the inside of the cooling pipe, the guide plate 41 guides the sliding frame 39 at an angle at one end, so that the sliding frame 39 drives the fixed tube 37 to move, and the fixed tube 37 drives the sliding rod 36 to move. The sliding rod 36 drives the retaining plate 25 to move through the fourth fixed plate, so that the extrusion rod 35 squeezes the cooling tube, thereby fixing the cooling tube. Then the fixed detection rod 11 moves along the axis of the cooling tube, and the two first detection heads 12 at one end of the fixed detection rod 11 detect the inner diameter of the cooling tube, and the second detection head 14 at one end of the two adjustment detection rods 13 detects the outer diameter of the cooling tube.

[0036] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An internal and external diameter detection device for an automobile cooling pipe, comprising a fixed detection rod (11) and an adjustable detection rod (13), wherein the two fixed detection rods (11) are symmetrically arranged, and one end of each fixed detection rod (11) is symmetrically provided with a first detection head (12), the fixed detection rod (11) is fixedly arranged on one side of an adjustment pipe (15), and both sides of the fixed detection rod (11) are provided with an adjustable detection rod (13), characterized in that: The second detection head (14) is fixedly provided at one end of the adjustment detection rod (13) near the side of the first detection head (12), and a threaded plate is provided at one end of the adjustment detection rod (13). The threaded plate is slidably arranged inside the adjustment tube (15), and the adjustment tube (15) is slidably arranged on one side of the movable plate (18). The two movable plates (18) are respectively arranged inside two fixed boxes (22), and the fixed boxes (22) are respectively arranged on both sides of the installation box (27). One side of the movable plate (18) is provided with a tool for adjusting the first detection head (12) and the second detection head. (14) An adjusting component for adjusting the detection position, a conveyor belt (24) is rotatably provided inside the installation box (27), a plurality of bearing plates (23) are arranged in an array at equal intervals on the conveyor belt (24), and a bearing groove is provided at the upper end of each bearing plate (23), a driving component for driving the conveyor belt (24) to rotate is provided on one side of the installation box (27), a correction mechanism for correcting the position of the cooling pipe in the bearing groove is provided at one end of the inner side of the installation box (27), and a clamping mechanism for fixing the cooling pipe is provided between the two fixing boxes (22).

2. The device for detecting inner and outer diameters of automobile cooling pipes according to claim 1, characterized in that: The adjusting assembly includes a first bidirectional screw (16) and a first electric push rod (17), one side of the threaded plate is provided with a first threaded hole, the two threaded plates are symmetrically arranged on the first bidirectional screw (16), the first bidirectional screw (16) is rotatably arranged inside the adjusting tube (15), the upper end of the adjusting tube (15) is fixedly connected to the output end of the first electric push rod (17), the first electric push rod (17) is fixedly arranged on one side of the moving plate (18), one side of the moving plate (18) is provided with two first sliding holes and a second threaded hole, the two moving plates are fixedly connected to the output end of the first electric push rod (17), and the first two moving plates are fixedly connected to the output end of the first electric push rod (17). The movable plate (18) is arranged on the second bidirectional screw (19) through the second threaded hole. The second bidirectional screw (19) is rotatably arranged inside the two fixed boxes (22). One end of the second bidirectional screw (19) is fixedly connected to the output end of the first motor (21). The first motor (21) is fixedly arranged on one side of a fixed box (22). A first guide slide bar (20) is slidably arranged in the first sliding hole. The first guide slide bar (20) is fixedly arranged inside the two fixed boxes (22). A controller is provided at the upper end of the fixed box (22).

3. The device for detecting inner and outer diameters of automobile cooling pipes according to claim 1, characterized in that: The driving assembly includes a driving roller and a transmission roller. The driving roller and the transmission tube are cooperatively arranged at both ends of the transmission belt (24). The rotating shafts at both ends of the driving roller and the transmission tube are respectively rotatably arranged in the rotating holes at both ends of two retaining plates (25). The retaining plates (25) are fixedly arranged inside the installation box (27). The rotating shaft at one end of the driving roller is fixedly connected to the output end of the second motor (26). The second motor (26) is fixedly arranged on one side of the installation box (27).

4. The device for detecting inner and outer diameters of automobile cooling pipes according to claim 1, characterized in that: The correction mechanism includes two symmetrically arranged correction plates (30), one end of each correction plate (30) is inclined, one side of each correction plate (30) is fixed with a first fixing plate, one side of each first fixing plate is provided with a third threaded hole, the first fixing plate is arranged on a third bidirectional screw (32) through the third threaded hole, the third bidirectional screw (32) is rotatably arranged in the mounting hole inside the mounting box (27), one end of the third bidirectional screw (32) is provided with a rotating handle, both sides of the first fixing plate are provided with a second fixing plate, the second fixing plate is fixedly arranged on one side of the correction plate (30), one end of the second fixing plate is provided with a second sliding hole, the coaxial second sliding hole is slidably arranged on a second guide slide rod (31), the second guide slide rod (31) is fixed on the inside of the mounting box (27), and the bottom end of the correction plate (30) is at the same height as the upper end of the carrier plate (23).

5. The device for detecting inner and outer diameters of automobile cooling pipes according to claim 4, characterized in that: An anti-slip plate (33) is provided between the two correction plates (30), one end of the anti-slip plate (33) is tilted, the upper end of the anti-slip plate (33) is fixedly connected to the output ends of two second electric push rods (34), the second electric push rods (34) are fixedly provided at the bottom end of the third fixed plate, and the third fixed plates are all fixedly provided inside the fixed tube (37).

6. The device for detecting inner and outer diameters of automobile cooling pipes according to claim 2, characterized in that: The clamping mechanism includes an extrusion rod (35), the extrusion rod (35) is arranged below the second bidirectional screw (19), both ends of the extrusion rod (35) are fixed with a fourth fixing plate, the upper end of the fourth fixing plate is fixed with a sliding rod (36), one end of the sliding rod (36) is fixed with a fixed tube (37), one end of the fixed tube (37) is connected with a mounting tube, a stop plate (38) is slidingly provided in the mounting tube, the stop plate (38) is tightly arranged with the sliding rod (36), one side of the stop plate (38) is provided with an anti-slip layer, the stop plate (38) is rotatably provided at one end of the screw, the screw is rotatably provided in the fourth threaded hole at one end of the mounting tube, and a first support frame is slidably provided on the fixed tube (37). The first support frame is fixed to the bottom end of the fifth fixed plate, and the fifth fixed plate is fixed to the inside of the installation box (27). A connecting plate is fixed to one end of the fixed tube (37), and a sliding frame (39) is fixed to the other end of the connecting plate. The sliding frame (39) is L-shaped. A circular plate is fixed on the sliding frame (39), and the circular plate is slidably arranged inside the fixed installation tube. A return spring (40) is provided between the bottom end of the circular plate and the bottom end of the fixed installation tube. A second support frame is fixed to the fixed installation tube, and the second support frame is fixed to the bottom end of the fifth fixed plate. One end of the sliding frame (39) is in close contact with the inclined surface of the guide plate (41), and the guide plate (41) is fixed to one side of the movable plate (18).

7. The device for detecting inner and outer diameters of automobile cooling pipes according to claim 1, characterized in that: Auxiliary support rods are symmetrically provided at the bottom ends of the carrier plates (23), and the cross sections of the auxiliary support rods are all T-shaped. The auxiliary support rods are not fixedly connected to the conveyor belt (24). Fixed shafts are symmetrically provided on both sides of the carrier plates (23), and rollers (28) are rotatably provided on the fixed shafts. A support plate (29) is fixedly provided at a position corresponding to the position of the roller (28) at the upper end of the conveyor belt (24) on the inner side of the installation box (27), and the roller (28) at the upper end of the conveyor belt (24) is rotatably provided on the upper end of the support plate (29).

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