An online monitoring device for detecting the outer diameter of finished internal thread products

Abstract

The present invention discloses an online monitoring device for detecting the outer diameter of a finished internal thread product, comprising a monitoring platform, wherein a monitoring box and a pipe reversing assembly are arranged on one side of an upper surface of the monitoring platform, the monitoring box is slidably connected to the monitoring platform, a first screw rod and a second screw rod are rotatably installed in the monitoring box, the first screw rod and the second screw rod are fixedly connected by a coupling, the first screw rod and the second screw rod are respectively transmission-connected to a first motor at one end away from the coupling, and two groups of monitoring plates are slidably installed on the surfaces of the first screw rod and the second screw rod, touch switches are symmetrically installed on one side of the two groups of monitoring plates, the touch switches are electrically connected to the first motor, and the pipe reversing assembly comprises a turntable, and two groups of first cylinders are symmetrically installed on the upper surface of the turntable, and clamping assemblies are arranged on the output shaft ends of the two groups of the first cylinders, so as to reduce the monitoring error and the cost of enterprise procurement and repair and maintenance.

Description

Technical Field

[0001] The invention belongs to the technical field of external diameter monitoring of internal threaded pipes, and in particular relates to an online monitoring device used for external diameter detection of internal threaded finished products. Background Art

[0002] The finished products of internal threads include internal threaded pipes. Online measurement of the dimensions of internal threaded pipes is very important, as it will determine whether the product production meets the standards. Through precise measuring equipment and online measurement technology, stable and continuous production can be ensured. The outer diameter of the pipe is one of the most important quality requirements for internal threaded pipes. Too large an outer diameter deviation not only makes installation inconvenient, but also causes waste of materials if the size is too large. According to relevant statistics, in the production process of internal threaded pipes, due to the deviation of the outer diameter dimension, the product quality does not meet the standards, resulting in very serious waste and economic losses. Therefore, real-time online measurement of the outer diameter dimension during production will help improve product quality and reduce production waste.

[0003] At present, there are two main test methods for measuring the outer diameter of internal threaded pipes: laser scanning and photoelectric photography. The laser scanning method has good accuracy for static size testing, but its accuracy is very poor when testing dynamic internal threaded pipes produced online. If the measured pipe shakes laterally, the beam blocking time will be compressed or expanded, which will introduce a large error, so it is not suitable for real-time online monitoring methods. Photoelectric photography can well monitor the current internal threaded pipes in real time, but the test equipment is expensive and the test instrument is too large to be used in situations where workshop space is limited. Moreover, non-contact test methods such as laser scanning and photoelectric photography have relatively high requirements for the pipe production environment. For example, water droplets of coolant on the surface of the pipe, pipe vibration, etc. may cause measurement errors, which reduces the practicality of the instrument; at the same time, non-contact instruments are composed of highly integrated components, and the maintenance cost is high.

[0004] To this end, we propose an online monitoring device for the outer diameter detection of finished internal thread products. A group of monitoring stations are set up so that when all internal threaded pipes pass through the detection station, the internal threaded pipes to be detected are rotated 90° by a turntable and then enter the detection cabinet. When the monitored target outer diameter is the set value, it is transported back to the production line, otherwise it is recycled as waste. This solves the problems existing in the existing technology, reduces monitoring errors, and reduces the cost of enterprise procurement and repair and maintenance. Summary of the invention

[0005] The purpose of the present invention is to provide an online monitoring device for detecting the outer diameter of an internal thread finished product, so as to solve the problem in the prior art mentioned in the above background technology that the working efficiency is low and a large amount of manpower is wasted.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an online monitoring device for detecting the outer diameter of an internal thread finished product, comprising a monitoring platform, a monitoring box and a pipe reversing assembly are arranged on one side of the upper surface of the monitoring platform, and the monitoring box is slidably connected to the monitoring platform;

[0007] A first screw rod and a second screw rod are rotatably installed in the monitoring box, the first screw rod and the second screw rod are fixedly connected by a coupling, the first screw rod and the second screw rod are respectively connected to a first motor at one end away from the coupling, and two groups of monitoring plates are slidably installed on the surfaces of the first screw rod and the second screw rod, and touch switches are symmetrically installed on one side of the two groups of monitoring plates, and the touch switches are electrically connected to the first motor;

[0008] The pipe reversing assembly includes a turntable, two groups of first cylinders are symmetrically installed on the upper surface of the turntable, and the output shaft ends of the two groups of the first cylinders are both provided with clamping assemblies, and the clamping assembly includes two groups of second cylinders and a fixed bracket, the second cylinders are symmetrically installed on both sides of the fixed bracket, and the output shaft ends of the second cylinders are fixedly installed with clamping plates;

[0009] A driving assembly is fixedly installed on the bottom surface of the turntable, and the driving assembly includes a second motor and a first gear. The first gear is fixedly installed on the lower surface of the turntable, and a second gear is fixedly installed on the output shaft end of the second motor. The first gear and the second gear are meshed for transmission.

[0010] Preferably, two sets of electric slides are symmetrically installed on the upper surface of the monitoring platform away from the turntable, and the monitoring box is fixedly installed on the slider of the resistance electric slide.

[0011] Preferably, the first screw rod and the second screw rod are rotatably mounted in the monitoring box via seat bearings at one end away from the coupling, and the first screw rod and the second screw rod are respectively remote from the coupling. The ends thereof pass through the monitoring box and extend to the outside of the monitoring box.

[0012] Preferably, the first screw rod and the second screw rod are both fixedly mounted with a first pulley at one end outside the monitoring box, the output shaft end of the first motor is fixedly mounted with a second pulley, and the first pulley is transmission-connected with the second pulley.

[0013] Preferably, a rotating shaft is fixedly mounted on the lower surface of the turntable, and the rotating shaft is rotatably mounted in the monitoring platform.

[0014] Preferably, a shaft sleeve is fixedly mounted on one side of the fixing bracket, and the shaft sleeve is threadedly connected to the output shaft end of the first cylinder.

[0015] Preferably, an arc-shaped groove is formed on one side of the clamping plate, and a rubber pad is fixedly installed in the arc-shaped groove.

[0016] Preferably, a rotating shaft is also fixedly mounted on the lower surface of the second gear, the rotating shaft is rotatably mounted in the monitoring platform and extends to the bottom of the monitoring platform, and one end of the rotating shaft away from the second gear is fixedly connected to the output shaft end of the second motor.

[0017] Preferably, an electric door is fixedly installed on one side of the monitoring box close to the turntable.

[0018] Technical effects and advantages of the present invention: Compared with the prior art, the online monitoring device for detecting the outer diameter of the finished internal thread product proposed by the present invention has the following advantages:

[0019] A set of monitoring platforms is set up so that when all the internally threaded pipes pass through the testing platform, the turntable is used to rotate the internally threaded pipes to be tested 90° and then enter the testing cabinet. When the monitoring target outer diameter is the set value, it will be transported back to the production line, otherwise it will be recycled as waste, thereby reducing monitoring errors and reducing the cost of enterprise procurement and repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial three-dimensional structural schematic diagram of an online monitoring device used for detecting the outer diameter of an internal thread finished product according to the present invention;

[0021] Figure 2 It is a schematic diagram of the main structure of an online monitoring device used for detecting the outer diameter of an internal thread finished product according to the present invention;

[0022] Figure 3 It is a side view structural schematic diagram of an online monitoring device used for detecting the outer diameter of an internal thread finished product of the present invention;

[0023] Figure 4 It is a schematic diagram of a top view of the structure of an online monitoring device used for detecting the outer diameter of an internal thread finished product according to the present invention;

[0024] Figure 5 This is a schematic diagram of a first gear transmission structure of an online monitoring device for detecting the outer diameter of an internal thread finished product according to the present invention;

[0025] Figure 6 The invention is an online monitoring device for detecting the outer diameter of an internal thread finished product. Figure 4 A schematic diagram of the enlarged structure of part A.

[0026] In the figure: 1. monitoring platform; 2. monitoring box; 201. first screw rod; 202. second screw rod; 203. coupling; 204. first motor; 205. monitoring board; 206. touch switch; 207. first pulley; 208. second pulley; 209. screw sleeve; 3. pipe reversing assembly; 301. turntable; 302. first cylinder; 303. rotating shaft; 4. clamping assembly; 401. second cylinder; 402. fixing bracket; 403. clamping plate; 404. bushing; 405. arc groove; 406. rubber pad; 5. driving assembly; 501. second motor; 502. first gear; 503. second gear; 6. electric slide; 7. electric door. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying 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, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] The present invention provides Figure 1-6 An online monitoring device for detecting the outer diameter of an internal threaded finished product is shown, comprising a monitoring platform 1, a monitoring box 2 and a pipe reversing assembly 3 are arranged on one side of the upper surface of the monitoring platform 1, the monitoring box 2 is slidably connected to the monitoring platform 1, and an electric door 7 is fixedly installed on the side of the monitoring box 2 close to the turntable 301.

[0029] See also Figure 1 and Figure 3The monitoring box 2 has a first screw rod 201 and a second screw rod 202 rotatably installed therein. The first screw rod 201 and the second screw rod 202 are fixedly connected via a coupling 203. The first screw rod 201 and the second screw rod 202 are respectively connected to a first motor 204 at one end away from the coupling 203. Two groups of monitoring plates 205 are threadedly connected to the surfaces of the first screw rod 201 and the second screw rod 202 via a screw sleeve 209. The two groups of monitoring plates 205 are slidably installed in the monitoring box 2. Touch switches 206 are symmetrically installed on one side of the two groups of monitoring plates 205. The touch switches 206 It is electrically connected to the first motor 204, and the first screw rod 201 and the second screw rod 202 are respectively rotatably installed in the monitoring box 2 at one end away from the coupling 203 through a seat bearing, and the first screw rod 201 and the second screw rod 202 are respectively away from the one end of the coupling 203 and penetrate the monitoring box 2 and extend to the outside of the monitoring box 2, and the first screw rod 201 and the second screw rod 202 are located at one end outside the monitoring box 2. The first pulley 207 is fixedly installed at the output shaft end of the first motor 204, and the first pulley 207 and the second pulley 208 are transmission connected.

[0030] See also Figure 1-Figure 5 The pipe reversing assembly 3 includes a turntable 301, a rotating shaft 303 is fixedly installed on the lower surface of the turntable 301, and the rotating shaft 303 is rotatably installed in the monitoring platform 1. Two groups of electric slides 6 are symmetrically installed on the upper surface of the monitoring platform 1 away from the turntable 301. The monitoring box 2 is fixedly installed on the slider of the resistance electric slide 6. Two groups of first cylinders 302 are symmetrically installed on the upper surface of the turntable 301. The output shaft ends of the two groups of the first cylinders 302 are both provided with a clamping assembly 4. The clamping assembly 4 includes two groups of second cylinders 401 and a fixed bracket 402. The second cylinders 401 are symmetrically installed on both sides of the fixed bracket 402, and a clamping plate 403 is fixedly installed on the output shaft end of the second cylinder 401. A shaft sleeve 404 is fixedly installed on one side of the fixed bracket 402. The shaft sleeve 404 is threadedly connected to the output shaft end of the first cylinder 302. An arc-shaped groove 405 is opened on one side of the clamping plate 403, and a rubber pad 406 is fixedly installed in the arc-shaped groove 405.

[0031] See also Figure 2 and Figure 3A driving assembly 5 is fixedly installed on the bottom surface of the turntable 301, and the driving assembly 5 includes a second motor 501 and a first gear 502. The first gear 502 is fixedly installed on the lower surface of the turntable 301, and a second gear 503 is fixedly installed on the output shaft end of the second motor 501. The first gear 502 and the second gear 503 are meshed for transmission. A rotating shaft 303 is also fixedly installed on the lower surface of the second gear 503. The rotating shaft 303 is rotatably installed in the monitoring platform 1 and extends to the bottom of the monitoring platform 1. The rotating shaft 303 is fixedly connected to the output shaft end of the second motor 501 at one end away from the second gear 503.

[0032] Working principle: a monitoring platform 1 is set up, so that when all the internally threaded pipes pass through the monitoring platform 1, the internally threaded pipes to be tested are rotated 90 degrees by the turntable 301 and then enter the monitoring box 2. When in use, after the monitoring platform 1 is connected to the conveying device, when the internally threaded pipe fittings enter the turntable 301, the first cylinder 302 is started to push the clamping assembly 4 to the center of the turntable 301, and then the second cylinder 401 is started to drive the clamping plates 403 to align with each other to clamp and tighten the internally threaded pipe fittings, and then the second motor 501 is started, and the first gear 5 02 and the second gear 503 engage in transmission to drive the turntable 301 to rotate 90°, then start the electric slide 6 to drive the monitoring box 2 to move above the turntable 301, start the first motor 204 to drive the first screw rod 201 and the second screw rod 202 to rotate, thereby driving the monitoring plate 205 to approach the pipe fitting. When the trigger switch 206 touches the pipe fitting, the first motor 204 stops running. When the monitored target outer diameter is the set value, the operation of the above structure is reversed to transport it back to the production line, otherwise it will be recycled as waste.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An online monitoring device for detecting the outer diameter of an internal thread finished product, comprising a monitoring platform (1), characterized in that: A monitoring box (2) and a pipe reversing assembly (3) are provided on one side of the upper surface of the monitoring platform (1); the monitoring box (2) is slidably connected to the monitoring platform (1); A first screw rod (201) and a second screw rod (202) are rotatably mounted in the monitoring box (2), the first screw rod (201) and the second screw rod (202) are fixedly connected via a coupling (203), one end of the first screw rod (201) and the second screw rod (202) away from the coupling (203) are both drivingly connected to a first motor (204), and two groups of monitoring plates (205) are threadedly connected to the surfaces of the first screw rod (201) and the second screw rod (202) via a screw sleeve (209), the two groups of monitoring plates (205) are slidably mounted in the monitoring box (2), and a touch switch (206) is symmetrically mounted on one side of the two groups of monitoring plates (205), and the touch switch (206) is electrically connected to the first motor (204); The pipe reversing assembly (3) comprises a rotating disk (301), two groups of first cylinders (302) are symmetrically mounted on the upper surface of the rotating disk (301), the output shaft ends of the two groups of first cylinders (302) are both provided with a clamping assembly (4), the clamping assembly (4) comprises two groups of second cylinders (401) and a fixed bracket (402), the second cylinders (401) are symmetrically mounted on both sides of the fixed bracket (402), and a clamping plate (403) is fixedly mounted on the output shaft ends of the second cylinders (401); A driving assembly (5) is fixedly mounted on the bottom surface of the rotating disk (301), and the driving assembly (5) comprises a second motor (501) and a first gear (502), the first gear (502) is fixedly mounted on the bottom surface of the rotating disk (301), a second gear (503) is fixedly mounted on the output shaft end of the second motor (501), and the first gear (502) and the second gear (503) are meshed for transmission; The internally threaded pipe to be inspected is rotated 90 degrees by using the turntable (301) and then enters the monitoring box (2). When in use, after the monitoring platform (1) is connected to the conveying device, when the internally threaded pipe fitting enters the turntable (301), the first cylinder (302) is started to push the clamping assembly (4) toward the center of the turntable (301), and then the second cylinder (401) is started to drive the clamping plates (403) to align with each other to clamp and tighten the internally threaded pipe fitting, and then the second motor (501) is started to drive the turntable (301) to rotate 90 degrees through the meshing transmission of the first gear (502) and the second gear (503), and then the electric slide (6) is started to drive the monitoring box (2) to move above the turntable (301), and the first motor (204) is started to drive the first screw rod (201) and the second screw rod (202) to rotate, thereby driving the monitoring plate (205) to approach the pipe fitting, and when the trigger switch (206) touches the pipe fitting, the first motor (204) stops running.

2. The online monitoring device for detecting the outer diameter of the finished internal thread product according to claim 1 is characterized in that: Two sets of electric slides (6) are symmetrically mounted on a side of the upper surface of the monitoring platform (1) away from the turntable (301), and the monitoring box (2) is fixedly mounted on the sliders of the resistance electric slides (6).

3. The online monitoring device for detecting the outer diameter of the finished internal thread product according to claim 1 is characterized in that: The first screw rod (201) and the second screw rod (202) are rotatably mounted in the monitoring box (2) via seat bearings at their ends away from the coupling (203), and the first screw rod (201) and the second screw rod (202) are respectively disposed at their ends away from the coupling (203) through the monitoring box (2) and extend to the outside of the monitoring box (2).

4. The online monitoring device for detecting the outer diameter of an internal thread product according to claim 1 is characterized in that: A first pulley (207) is fixedly mounted on one end of the first screw rod (201) and the second screw rod (202) located outside the monitoring box (2); a second pulley (208) is fixedly mounted on the output shaft end of the first motor (204); and the first pulley (207) and the second pulley (208) are transmission-connected.

5. The online monitoring device for detecting the outer diameter of the finished internal thread product according to claim 1 is characterized in that: A rotating shaft (303) is fixedly mounted on the lower surface of the rotating disk (301), and the rotating shaft (303) is rotatably mounted in the monitoring platform (1).

6. The online monitoring device for detecting the outer diameter of the finished internal thread product according to claim 1 is characterized in that: A shaft sleeve (404) is fixedly mounted on one side of the fixed bracket (402), and the shaft sleeve (404) is threadedly connected to the output shaft end of the first cylinder (302).

7. The online monitoring device for detecting the outer diameter of an internal thread product according to claim 1, characterized in that: An arc-shaped groove (405) is provided on one side of the clamping plate (403), and a rubber pad (406) is fixedly installed in each of the arc-shaped grooves (405).

8. The online monitoring device for detecting the outer diameter of a finished internal thread product according to claim 5, characterized in that: A rotating shaft (303) is also fixedly mounted on the lower surface of the second gear (503); the rotating shaft (303) is rotatably mounted in the monitoring platform (1) and extends to the bottom of the monitoring platform (1); and one end of the rotating shaft (303) away from the second gear (503) is fixedly connected to the output shaft end of the second motor (501).

9. The online monitoring device for detecting the outer diameter of an internal thread product according to claim 1, characterized in that: An electric door (7) is fixedly mounted on one side of the monitoring box (2) close to the turntable (301).

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