Casting tube outer diameter detection device for casting processing

Abstract

The present invention discloses a casting pipe outer diameter detection device for casting processing, which relates to the field of pipe detection technology, including a detection platform and a transmission assembly, wherein a support block is arranged above the left side of the detection platform surface, and a base plate is arranged in the middle above the surface of the detection platform, and laser distance measuring sensors are arranged on both sides of the base plate, and the transmission assembly is arranged at the front end of the support block. The casting pipe outer diameter detection device for casting processing drives the positive and negative threaded screw 1 and gear 1 to rotate through the operation of a servo motor, and the gear 1 drives the toothed belt transmission to rotate the gear 2 and gear 3, and during the displacement of the positive and negative threaded screw 1 and the positive and negative threaded screw 2 on the screw nut 2 in opposite directions, the bevel gear 1 that follows the rotation of the gear 3 and the transmission rod drives the bevel gear 2 to rotate, and the mounting plate follows the screw nut 1 to move vertically upward relative to the outside of the reciprocating screw, thereby shortening the distance between the casting pipe and the conveyor belt, and actively receiving and conveying the casting pipe that has completed the outer diameter detection.

Description

Technical Field

[0001] The invention relates to the technical field of pipe material detection, in particular to a casting pipe outer diameter detection device for casting processing. Background Art

[0002] Castings are metal shaped objects obtained by various casting methods, that is, the smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods, and after cooling and subsequent processing such as grinding, the resulting object has a certain shape, size and performance. The outer diameter of the casting tube needs to be detected by a detection device after it is manufactured.

[0003] For example, the patent with application number CN202111563535.6 discloses a device for detecting the outer diameter of a casting pipe for casting processing. The invention enables two sets of top pieces to clamp the outside of the casting pipe through the cooperation of a bidirectional threaded rod, a connecting plate, a bottom plate, a slide groove, a movable plate, a top piece and a slide plate, and then detect the outer diameter of the casting pipe. The detection is highly accurate and easy to operate. Through the cooperation of a soft ruler, a mounting plate, a magnifying glass and a connecting ring, while detecting the diameter of the casting pipe, the circumference of other positions of the casting pipe can also be detected, so as to facilitate the comparison of data at various positions of the casting pipe. However, only one casting pipe can be detected at a time, the detection efficiency is low, and the workload of manual operation is large. There are interference factors such as human error, and it is difficult to ensure the accuracy of the test results.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a casting pipe outer diameter detection device for casting processing is proposed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a casting pipe outer diameter detection device for casting processing, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical scheme: a casting pipe outer diameter detection device for casting processing, including a detection platform and a transmission assembly, a support block is arranged above the left side of the surface of the detection platform, and a substrate is arranged in the middle above the surface of the detection platform, laser ranging sensors are arranged on both sides of the substrate, the transmission assembly is arranged at the front end of the support block, and the transmission assembly includes a servo motor, a positive and negative threaded screw rod, a screw nut, a connecting plate, a compression spring, a movable seat, a rotating shaft, a clamping plate, a sliding rod and a pressure sensor, a positive and negative threaded screw rod is arranged at the output end of the servo motor, and the positive and negative threaded screw rod is connected to the outside of the positive and negative threaded screw rod, a screw nut is connected to the second, a connecting plate is arranged at the rear end of the screw nut, and a compression spring is arranged on a side of the connecting plate close to the substrate, the other end of the compression spring is connected to the movable seat, and a rotating shaft is passed through the middle of the movable seat, the outside of the rotating shaft is connected to the clamping plate, a sliding rod is passed through the inside of the compression spring laterally, and a pressure sensor is installed in the middle of a side of the connecting plate close to the movable seat.

[0007] Furthermore, legs are installed on both sides of the bottom of the detection platform, and support vertical plates are arranged on both sides of the surface of the detection platform. The sides of the detection platform and the support vertical plates are both in a right-angle structure.

[0008] Furthermore, the transmission assembly also includes gear one, a toothed belt, gear two and gear three, and gear one is sleeved on the outer left side of the positive and negative screw rod one, the outside of gear one is connected to a toothed belt, and gear two and gear three are also arranged inside the toothed belt.

[0009] Furthermore, the transmission assembly also includes two forward and reverse screw rods, a transmission rod and one bevel gear, and the middle part of the gear two is horizontally penetrated by the two forward and reverse screw rods, the middle part of the gear three is horizontally penetrated by the transmission rod, and the left end of the transmission rod is connected to the bevel gear one.

[0010] Furthermore, the transmission assembly also includes bevel gear 2, a reciprocating screw, a screw nut 1 and a mounting plate, and bevel gear 2 is arranged on the left side of bevel gear 1, a reciprocating screw is vertically penetrated through the middle of bevel gear 2, and the outside of the reciprocating screw is connected to screw nut 1, and a mounting plate is installed at the front end of screw nut 1.

[0011] Furthermore, the transmission assembly also includes a driving motor, a driving roller, a conveyor belt and a driven roller, and a driving motor is arranged at the front end of the mounting plate, the output end of the driving motor passes through the mounting plate and is connected to the driving roller, and the outside of the driving roller is connected to the conveyor belt, and a driven roller is also arranged inside the conveyor belt.

[0012] Furthermore, the forward and reverse screw rods 1, 2 and the transmission rod are parallel to each other, and two screw nuts 2 are respectively arranged on the outside of the forward and reverse screw rods 1 and 2, and the ratio of the number of screw nuts 2 to the number of connecting plates is 2:1.

[0013] Furthermore, the diameters of gear one, gear two and gear three are consistent, bevel gear one and bevel gear two are meshingly connected, the transmission rod and the reciprocating screw are perpendicular to each other, and the bottom end of the reciprocating screw is rotatably connected to the detection platform.

[0014] Furthermore, the driving roller and the driven roller are parallel to each other, the sliding rod passes through the sliding groove on the surface of the connecting plate, and the connecting plate is elastically connected to the moving seat through a compression spring, and the clamping plate occupies half of the internal space of the moving seat.

[0015] Furthermore, the laser ranging sensor is electrically connected to a single-chip microcomputer, and the single-chip microcomputer is electrically connected to a display screen, and the display screen is arranged above the right side of the surface of the detection platform.

[0016] The present invention provides a casting pipe outer diameter detection device for casting processing, which has the following beneficial effects:

[0017] 1. The casting tube outer diameter detection device for casting processing, the servo motor provides rotational force for the positive and negative threaded screw rod 1, so that the positive and negative threaded screw rod 1 has the ability to convert the rotational force into the displacement of the screw nut 2 in the linear direction, and the four screw nuts 2 can respectively move linearly in opposite directions about the positive and negative threaded screw rod 1 and the screw nut 2, until the casting tube is restricted in the clamping area jointly surrounded by the clamping plate and the base plate. Since the compression spring has a large elastic deformation capacity, the moving seat and the pressure sensor are kept at a certain distance under the support of the compression spring. As the screw nut 2 continues to move, the spacing between the moving seat and the connecting plate gradually decreases. When the single-chip microcomputer obtains the pressure sensor and detects that the pressure value is equal to the pressure threshold, the servo motor is controlled to be turned off at the first time to avoid the casting tube from being damaged after being subjected to a large pressure. Casting tubes of different specifications can be placed between the clamping plate and the base plate, which are not limited by the outer diameter of the casting tube, greatly increasing the application range of the detection device.

[0018] 2. The casting tube outer diameter detection device for casting processing drives the driving motor to rotate the driving roller, so that the conveyor belt outside the driving roller and the driven roller is driven and has the ability to convey the casting tube in the horizontal direction until it is far away from the detection area, saving the operation of manual unloading, so that the staff can concentrate on adding the casting tube to be tested to the detection area, and determine whether the casting tube at the station in the detection area is qualified according to the detection results. The staff does not need to be distracted, and the work efficiency will be improved.

[0019] 3. The casting tube outer diameter detection device for casting processing drives the positive and negative threaded screw 1 and gear 1 to rotate through the operation of the servo motor, and the gear 1 drives the toothed belt transmission to rotate the gear 2 and gear 3. When the positive and negative threaded screw 1 and the positive and negative threaded screw 2 move in opposite directions, the bevel gear 1 that follows the rotation of the gear 3 and the transmission rod drives the bevel gear 2 to rotate, and the mounting plate follows the screw nut 1 to move vertically upward relative to the outside of the reciprocating screw, thereby shortening the distance between the casting tube and the conveyor belt, and actively receiving and conveying the casting tube that has completed the outer diameter detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall front view structure of the casting tube outer diameter detection device for casting processing of the present invention;

[0021] Figure 2 It is a schematic diagram of the top view of the structure of the positive and negative threaded rods 1 and 2 of the casting tube outer diameter detection device for casting processing of the present invention;

[0022] Figure 3 It is a front view structural schematic diagram of bevel gear 1 and bevel gear 2 of the casting pipe outer diameter detection device for casting processing of the present invention;

[0023] Figure 4 It is a schematic side view of the structure of the positive and negative threaded rods 1 and 2 of the casting tube outer diameter detection device for casting processing of the present invention;

[0024] Figure 5 It is a schematic diagram of the top view of the conveyor belt of the casting pipe outer diameter detection device for casting processing of the present invention;

[0025] Figure 6 The figure is a schematic diagram of the circuit principle of the device for detecting the outer diameter of a casting tube for casting processing of the present invention.

[0026] In the figure: 1. detection platform; 2. support foot; 3. support vertical plate; 4. transmission assembly; 401. servo motor; 402. positive and negative threaded screw rod 1; 403. gear 1; 404. toothed belt; 405. gear 2; 406. gear 3; 407. positive and negative threaded screw rod 2; 408. transmission rod; 409. bevel gear 1; 410. bevel gear 2; 411. reciprocating screw rod; 412. screw nut 1; 413. mounting plate; 414. drive motor; 415. drive roller; 416. conveyor belt; 417. driven roller; 418. screw nut 2; 419. connecting plate; 420. compression spring; 421. moving seat; 422. rotating shaft; 423. clamping plate; 424. sliding rod; 425. pressure sensor; 5. substrate; 6. laser ranging sensor; 7. display screen; 8. single chip microcomputer; 9. support block. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] See also Figure 1 , Figure 2 ,and Figure 6 As shown, the present invention provides a technical solution: a casting pipe outer diameter detection device for casting processing, comprising a detection platform 1 and a transmission assembly 4, legs 2 are installed on both sides of the bottom of the detection platform 1, and support vertical plates 3 are arranged on both sides of the surface of the detection platform 1, the sides of the detection platform 1 and the support vertical plates 3 are both in a right-angle structure, a support block 9 is arranged on the upper left side of the surface of the detection platform 1, and a base plate 5 is arranged in the middle above the surface of the detection platform 1, laser distance measuring sensors 6 are arranged on both sides of the base plate 5, and the transmission assembly 4 is arranged on the support block 9. The front end, and the transmission assembly 4 includes a servo motor 401, a positive and negative threaded screw rod 1 402, a screw nut 2 418, a connecting plate 419, a compression spring 420, a moving seat 421, a rotating shaft 422, a clamping plate 423, a sliding rod 424 and a pressure sensor 425. The output end of the servo motor 401 is provided with a positive and negative threaded screw rod 1 402, and the outside of the positive and negative threaded screw rod 1 402 is connected with a screw nut 2 418, and the rear end of the screw nut 2 418 is provided with a connecting plate 419, and the connecting plate 419 is close to the substrate 5. A compression spring 420 is provided on one side, and the other end of the compression spring 420 is connected to a moving seat 421, and a rotating shaft 422 is passed through the middle of the moving seat 421, and the outside of the rotating shaft 422 is connected to a clamping plate 423, and a sliding rod 424 is passed through the inside of the compression spring 420 in a horizontal direction, and a pressure sensor 425 is installed in the middle of one side of the connecting plate 419 close to the moving seat 421, and the positive and negative threaded rods 402, the positive and negative threaded rods 407 and the transmission rod 408 are parallel to each other, and the positive and negative threaded rods 402, the positive and negative threaded rods 407 and the transmission rod 408 are parallel to each other. Two screw nuts 418 are provided on the outside of 407, and the ratio of the number of screw nuts 418 and connecting plates 419 is 2:1. The sliding rod 424 runs through the sliding groove on the surface of the connecting plate 419, and the connecting plate 419 is elastically connected to the moving seat 421 through the compression spring 420. The clamping plate 423 occupies half of the internal space of the moving seat 421. The laser ranging sensor 6 is electrically connected to the single-chip microcomputer 8, and the single-chip microcomputer 8 is electrically connected to the display screen 7. The display screen 7 is arranged on the upper right side of the surface of the detection platform 1.

[0029] The specific operation is as follows: the servo motor 401 provides a rotational force for the positive and negative threaded screw rod 1 402, so that the positive and negative threaded screw rod 1 402 has the ability to convert the rotational force into a displacement of the screw nut 2 418 in a linear direction, and the four screw nuts 2 418 can respectively move linearly in opposite directions about the positive and negative threaded screw rod 1 402 and the screw nut 2 418, until the casting tube is restricted in the clamping area jointly enclosed by the clamping plate 423 and the base plate 5. Since the compression spring 420 has a large elastic deformation capacity, the compression spring 420 supports the Under the action of the support, the moving seat 421 maintains a certain distance from the pressure sensor 425. As the screw nut 418 continues to move, the distance between the moving seat 421 and the connecting plate 419 gradually decreases. When the single-chip microcomputer 8 obtains the pressure value detected by the pressure sensor 425 and is equal to the pressure threshold, it immediately controls the servo motor 401 to turn off to prevent the casting tube from being damaged after being subjected to a large pressure. Casting tubes of different specifications can be placed between the clamping plate 423 and the base plate 5, without being limited by the outer diameter of the casting tube, which greatly increases the scope of application of the detection device.

[0030] See also Figure 5 As shown, the transmission assembly 4 also includes a driving motor 414, a driving roller 415, a conveyor belt 416 and a driven roller 417, and the driving motor 414 is arranged at the front end of the mounting plate 413, the output end of the driving motor 414 passes through the mounting plate 413 and is connected to the driving roller 415, and the outside of the driving roller 415 is connected to the conveyor belt 416, and the inside of the conveyor belt 416 is also provided with a driven roller 417, and the driving roller 415 and the driven roller 417 are parallel to each other.

[0031] The specific operation is as follows: the driving motor 414 drives the driving roller 415 to rotate, so that the conveyor belt 416 outside the driving roller 415 and the driven roller 417 is transmitted and has the ability to convey the casting pipe in the horizontal direction until it is away from the detection area, saving the operation of manual unloading, so that the staff can concentrate on adding the casting pipe to be tested to the detection area, and determine whether the casting pipe at the workstation in the detection area is qualified according to the detection results. The staff does not need to be distracted and the work efficiency will be improved.

[0032] See also Figure 3 and Figure 4As shown, the transmission assembly 4 also includes a gear 1 403, a toothed belt 404, a gear 2 405 and a gear 3 406, and the gear 1 403 is sleeved on the left side of the outer side of the forward and reverse screw rod 1 402, the outer side of the gear 1 403 is connected with the toothed belt 404, and the inner side of the toothed belt 404 is also provided with a gear 2 405 and a gear 3 406, the transmission assembly 4 also includes a forward and reverse screw rod 2 407, a transmission rod 408 and a bevel gear 1 409, and the forward and reverse screw rod 2 407 is horizontally penetrated in the middle part of the gear 2 405, the transmission rod 408 is horizontally penetrated in the middle part of the gear 3 406, and the left end of the transmission rod 408 is connected to the bevel gear 1 409, The transmission assembly 4 also includes a bevel gear 2 410, a reciprocating screw 411, a screw nut 1 412 and a mounting plate 413, and a bevel gear 2 410 is arranged on the left side of the bevel gear 1 409, a reciprocating screw 411 is vertically penetrated through the middle of the bevel gear 2 410, and the outside of the reciprocating screw 411 is connected to the screw nut 1 412, and the front end of the screw nut 1 412 is installed with a mounting plate 413, the gear 1 403, the gear 2 405 and the gear 3 406 have the same diameter, the bevel gear 1 409 and the bevel gear 2 410 are meshed and connected, the transmission rod 408 and the reciprocating screw 411 are perpendicular to each other, and the bottom end of the reciprocating screw 411 is rotatably connected to the detection platform 1.

[0033] The specific operation is as follows: the servo motor 401 drives the forward and reverse screw rod 1 402 and the gear 1 403 to rotate, and the gear 1 403 drives the toothed belt 404 to drive the gear 2 405 and the gear 3 406 to rotate. When the forward and reverse screw rod 1 402 and the forward and reverse screw rod 2 407 are displaced in opposite directions, the bevel gear 1 409 that follows the rotation of the gear 3 406 and the transmission rod 408 drives the bevel gear 2 410 to rotate, and the mounting plate 413 follows the screw nut 1 412 to move vertically upward about the outside of the reciprocating screw rod 411, thereby shortening the distance between the casting tube and the conveyor belt 416, and actively receiving and conveying the casting tube that has completed the outer diameter detection.

[0034] In summary, when the casting tube outer diameter detection device for casting processing is used, firstly, two casting tubes are placed on both sides of the base plate 5, and then the servo motor 401 supported by the upper support block 9 on the left side of the detection platform 1 surface is turned on, and the servo motor 401 drives the positive and negative threaded screw 1 402 to transmit, and the external gear 1 403 of the positive and negative threaded screw 1 402 drives the toothed belt 404 to transmit so that the gear 2 405 and the gear 3 406 rotate, so that the four screw nuts 2 418 are respectively moved linearly in opposite directions about the external parts of the positive and negative threaded screw 1 402 and the screw nuts 2 418, until the casting tube is restricted in the clamping area jointly enclosed by the clamping plate 423 and the base plate 5, and because the compression spring 420 has The larger elastic deformation capacity enables the moving seat 421 to maintain a certain distance from the pressure sensor 425 under the support of the compression spring 420. As the screw nut 418 continues to move, the distance between the moving seat 421 and the connecting plate 419 gradually decreases. When the single-chip microcomputer 8 obtains the pressure value detected by the pressure sensor 425 and the pressure threshold is equal, the servo motor 401 is immediately controlled to be turned off to avoid the casting tube from being damaged after being subjected to a large pressure. Since the clamping plate 423 and the rotating shaft 422 are rotatably connected, the clamping plate 423 can adapt to the outer structure of the casting tube and keep a close fit with the casting tube. At this time, the staff can compare the clamping plate 423 detected by the front and rear groups of laser distance sensors 6 on the display screen 7. 3. The distance between the substrates 5 (i.e., the outer diameter detection result of the casting tube) determines whether the outer diameters of the front and rear ends of the casting tube are uniform. When the outer diameter detection of the casting tube in the detection area is completed, the servo motor 401 is started, so that during the displacement of the positive and negative threaded screw 1 402 and the positive and negative threaded screw 2 407, the bevel gear 1 409 that follows the rotation of the gear 3 406 and the transmission rod 408 can drive the bevel gear 2 410 to rotate, and the mounting plate 413 follows the screw nut 1 412 to move vertically upward about the outside of the reciprocating screw 411, and actively receives the casting tube that has completed the outer diameter detection by shortening the distance between the casting tube and the conveyor belt 416. At the same time, the driving motor 414 works to drive the driving The roller 415 rotates, so that the conveyor belt 416 outside the driving roller 415 and the driven roller 417 is driven and has the ability to convey the casting pipe in the horizontal direction until it is away from the detection area, saving the operation of manual unloading, so that the staff can concentrate on adding the casting pipe to be tested to the detection area, and determine whether the casting pipe at the station in the detection area is qualified according to the test results. The staff does not need to be distracted, and the work efficiency will be improved. Since the position of the clamping plate 423 is adjustable, casting pipes of different specifications can be placed between the clamping plate 423 and the base plate 5, which is not limited by the outer diameter of the casting pipe, which greatly increases the application range of the detection device. At the same time, the setting of double detection stations improves the detection efficiency.

[0035] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A casting tube outer diameter detection device for casting processing, comprising a detection platform (1) and a transmission assembly (4), characterized in that: A support block (9) is arranged above the left side of the surface of the detection platform (1), and a base plate (5) is arranged in the middle of the upper part of the surface of the detection platform (1), and laser distance measuring sensors (6) are arranged on both sides of the base plate (5). The transmission assembly (4) is arranged at the front end of the support block (9), and the transmission assembly (4) comprises a servo motor (401), a first positive and negative threaded screw (402), a second screw nut (418), a connecting plate (419), a compression spring (420), a moving seat (421), a rotating shaft (422), a clamping plate (423), a sliding rod (424) and a pressure sensor (425). The output end of the servo motor (401) is provided with a first positive and negative threaded screw (402). 2), and the outside of the positive and negative threaded screw rod 1 (402) is connected to the screw nut 2 (418), the rear end of the screw nut 2 (418) is provided with a connecting plate (419), and a compression spring (420) is provided on a side of the connecting plate (419) close to the base plate (5), the other end of the compression spring (420) is connected to a moving seat (421), and a rotating shaft (422) is passed through the middle of the moving seat (421), the outside of the rotating shaft (422) is connected to a clamping plate (423), a sliding rod (424) is passed through the inside of the compression spring (420), and a pressure sensor (425) is installed in the middle of a side of the connecting plate (419) close to the moving seat (421); The transmission assembly (4) further comprises a gear 1 (403), a toothed belt (404), a gear 2 (405) and a gear 3 (406), wherein the gear 1 (403) is sleeved on the left side of the outer side of the positive and negative threaded rod 1 (402), the outer side of the gear 1 (403) is connected to the toothed belt (404), and the inner side of the toothed belt (404) is further provided with a gear 2 (405) and a gear 3 (406); The transmission assembly (4) further comprises a second positive and negative threaded rod (407), a transmission rod (408) and a bevel gear (409), wherein the second positive and negative threaded rod (407) is transversely passed through the middle of the second gear (405), the transmission rod (408) is transversely passed through the middle of the third gear (406), and the left end of the transmission rod (408) is connected to the bevel gear (409); The transmission assembly (4) further comprises a second bevel gear (410), a reciprocating screw (411), a screw nut (412) and a mounting plate (413), wherein the second bevel gear (410) is arranged on the left side of the first bevel gear (409), a reciprocating screw (411) is vertically penetrated through the middle of the second bevel gear (410), and the outside of the reciprocating screw (411) is connected to the screw nut (412), and the front end of the screw nut (412) is mounted with the mounting plate (413); The transmission assembly (4) further comprises a driving motor (414), a driving roller (415), a conveyor belt (416) and a driven roller (417); the driving motor (414) is disposed at the front end of the mounting plate (413); the output end of the driving motor (414) passes through the mounting plate (413) and is connected to the driving roller (415); the outside of the driving roller (415) is connected to the conveyor belt (416); and the inside of the conveyor belt (416) is further provided with a driven roller (417); The forward and reverse threaded screw rods 1 (402), the forward and reverse threaded screw rods 2 (407) and the transmission rod (408) are parallel to each other, and two of the forward and reverse threaded screw rods 1 (402) and the forward and reverse threaded screw rods 2 (407) are respectively provided with two of the second threaded screw nuts (418), and the ratio of the number of the second threaded screw nuts (418) and the number of the connecting plates (419) is 2:

1.

2. The casting tube outer diameter detection device for casting processing according to claim 1, characterized in that: Support legs (2) are installed on both sides of the bottom of the detection platform (1), and support vertical plates (3) are arranged on both sides of the surface of the detection platform (1). The side surfaces of the detection platform (1) and the support vertical plates (3) are both in a right-angled structure.

3. The casting tube outer diameter detection device for casting processing according to claim 2, characterized in that: The diameters of gear one (403), gear two (405) and gear three (406) are consistent, the bevel gear one (409) and bevel gear two (410) are meshingly connected, the transmission rod (408) and the reciprocating screw rod (411) are perpendicular to each other, and the bottom end of the reciprocating screw rod (411) is rotatably connected to the detection platform (1).

4. The casting tube outer diameter detection device for casting processing according to claim 3, characterized in that: The driving roller (415) and the driven roller (417) are parallel to each other, the sliding rod (424) passes through a sliding groove on the surface of the connecting plate (419), and the connecting plate (419) is elastically connected to the moving seat (421) via a compression spring (420), and the clamping plate (423) occupies one half of the internal space of the moving seat (421).

5. The casting tube outer diameter detection device for casting processing according to claim 1, characterized in that: The laser distance measuring sensor (6) is electrically connected to a single chip computer (8), and the single chip computer (8) is electrically connected to a display screen (7), wherein the display screen (7) is arranged above the right side of the surface of the detection platform (1).

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