Precision welding cold-drawn steel pipe diameter linear inspection device

Abstract

The utility model relates to the technical field of cold-drawn steel pipes, in particular to a precision welding cold-drawn steel pipe diameter linear inspection device which comprises a bearing plate, a rotary driving mechanism and a pipe body inspection mechanism, the pipe body inspection mechanism comprises two fixing plates and a guide rod, the guide rod is arranged between the two fixing plates and used for connecting the fixing plates, and the bearing plate is arranged on the guide rod. The guide rod penetrates through the two detection pressing plates at the same time so that the detection pressing plates can move in the axial direction of the guide rod, the two fixing plates are correspondingly connected with the two detection pressing plates through telescopic units so that the two detection pressing plates can be opened and closed, and one detection pressing plate is provided with a detection unit used for detecting the distance between the detection pressing plates. According to the utility model, distance measurement of the outer diameter of the cold-drawn steel pipe is realized through the pipe body detection mechanism, and the rotation driving mechanism is arranged to enable the pipe body detection mechanism to rotate, so that multi-point detection is realized, the labor cost and the processing cost are reduced, and waste of raw materials, processing and detection caused by processing of unqualified pipe fittings is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-drawn steel pipes, in particular to a linear inspection device for the diameter of a precision welded cold-drawn steel pipe. Background Art

[0002] When the fully automatic cutting machine processes cold-drawn steel pipes, it is impossible to track and monitor the pipe diameter in real time. The outer diameter of the whole pipe is often too large or partially deformed. This will cause multiple wastes in processing, inspection, and materials. In order to avoid the waste of raw materials, a large number of workers need to be arranged to use calipers to check the outer diameter of each round pipe that needs to be cut, which increases the processing cost. Utility Model Content

[0003] The utility model aims to solve the above defects and provides a linear inspection device for the diameter of a precision welded cold-drawn steel pipe.

[0004] In order to overcome the defects existing in the background technology, the technical solution adopted by the utility model to solve its technical problems is: a precision welded cold-drawn steel pipe diameter linear inspection device, including a bearing plate and a rotating drive mechanism arranged on the bearing plate, a feed channel for passing the cold-drawn steel pipe is provided on the bearing plate, a tube body detection mechanism is arranged on the rotating drive mechanism to drive the tube body detection mechanism to rotate about the central axis of the feed channel; the tube body detection mechanism includes two fixed plates and a guide rod, the guide rod is arranged between the two fixed plates for connecting the fixed plates, the guide rod is simultaneously penetrated by two detection pressure plates to enable the detection pressure plates to move axially along the guide rod, the two fixed plates are respectively connected to the two detection pressure plates through telescopic units to open and close the two detection pressure plates, and one of the detection pressure plates is provided with a detection unit for detecting the spacing between the detection pressure plates.

[0005] A further improvement includes that the detection unit includes a mounting bracket and a distance measuring sensor disposed on the mounting bracket.

[0006] A further improvement includes that a return spring is sleeved on the guide rod, and the return spring is located between the detection pressure plates.

[0007] Further improvements include that the rotary drive mechanism includes a guide rail and a gear ring arranged in a circular structure on the supporting plate, a slider mounted on the fixed plate and slidingly arranged on the guide rail, a motor is arranged on one of the fixed plates, and a gear connected to the output end of the motor is meshed with the gear ring.

[0008] A further improvement includes providing a support on the bearing plate.

[0009] A further improvement includes that the telescopic unit adopts a pneumatic rod or an electric push rod.

[0010] The beneficial effects of the utility model are as follows: the design realizes the distance measurement of the outer diameter of the cold-drawn steel pipe through the pipe body detection mechanism, and arranges a rotating drive mechanism to rotate the pipe body detection mechanism to realize multi-point detection, thereby reducing labor costs and processing costs, and avoiding the waste of raw materials, processing, and detection caused by processing unqualified pipe fittings. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a left view of the utility model;

[0014] In the figure, 1-mounting bracket, 2-bearing plate, 3-detection pressure plate, 4-gear ring, 5-telescopic unit, 6-motor, 7-fixing plate, 8-feeding channel, 9-reset spring, 10-distance measuring sensor, 11-guide rod, 12-guide rail, 13-support, 14-gear, 15-slider. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The embodiments in the basic utility model and all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] according to Figure 1 and Figure 2 As shown, a precision welded cold-drawn steel pipe diameter linear inspection device comprises a bearing plate 2 and a rotary drive mechanism arranged on the bearing plate 2, wherein a feed channel 8 for passing the cold-drawn steel pipe is provided on the bearing plate 2, and a pipe body detection mechanism is arranged on the rotary drive mechanism so as to drive the pipe body detection mechanism to rotate about the central axis of the feed channel 8;

[0017] The tube body detection mechanism includes two fixed plates 7 and a guide rod 11. The guide rod 11 is arranged between the two fixed plates 7 to connect the fixed plates 7. The guide rod 11 simultaneously passes through two detection pressure plates 3 to enable the detection pressure plates 3 to move axially along the guide rod 11. The guide rod 11 has the function of guiding the detection pressure plates 3 and keeping the two detection pressure plates 3 parallel. The two fixed plates 7 are respectively connected to the two detection pressure plates 3 through the telescopic unit 5 to enable the two detection pressure plates 3 to open and close. One of the detection pressure plates 3 is provided with a detection unit for detecting the distance between the detection pressure plates 3. When the two detection pressure plates 3 are closed, the cold-drawn steel tube can be clamped. At this time, the detection pressure plate 3 is in line contact with the surface of the cold-drawn steel tube. Thereafter, the distance between the detection pressure plates 3 is detected by the detection unit, so that the diameter of the cold-drawn steel tube can be calculated. The tube body detection mechanism is driven to rotate by the rotary drive mechanism to perform multi-point detection on the cold-drawn steel tube and detect the deformation of the cold-drawn steel tube.

[0018] The detection unit includes a mounting bracket 1 and a distance sensor 10 disposed on the mounting bracket 1. The distance sensor 10 is used to detect the distance between the detection pressing plates 3, thereby calculating the diameter of the cold-drawn steel pipe.

[0019] A return spring 9 is sleeved on the guide rod 11 and is located between the detection plates 3 . Under the elastic force of the return spring 9 , the two detection plates 3 can be separated when not in operation, so that the cold-drawn steel pipe can be extended between the two detection plates 3 .

[0020] The rotary drive mechanism includes a guide rail 12 and a gear ring 4 in a circular structure arranged on the supporting plate 2, a slider 15 slidably arranged on the guide rail 12 is installed on the fixed plate 7, a motor 6 is arranged on one of the fixed plates 7, and a gear 14 connected to the output end of the motor 6 is meshed with the gear ring 4 so that the gear 14 is driven to rotate by the motor 6, so that the tube body detection mechanism rotates around the center of the feed channel 8.

[0021] A support 13 is provided on the bearing plate 2, and the device can be installed on a machine tool through the support 13, so as to perform early detection of the cold-drawn steel pipes to be produced, and issue an alarm for unqualified pipe fittings, thereby avoiding waste of raw materials, processing, and testing caused by processing unqualified pipe fittings.

[0022] The telescopic unit 5 adopts a pneumatic rod or an electric push rod.

[0023] Working principle: The cold-drawn steel pipe passes through the feeding channel 8 and enters between the detection plates 3. At this time, the telescopic unit 5 starts to drive the detection plates 3 to fit the surface of the cold-drawn steel pipe. The distance sensor 10 measures the distance between the detection plates 3, thereby calculating the outer diameter of the cold-drawn steel pipe. After completion, the telescopic unit 5 stops working, and the detection plates 3 are separated under the elastic force of the reset spring 9.

[0024] At this time, after the cold-drawn steel pipe continues to move forward to a position, the motor 6 is started to drive the gear 14 to rotate so that the pipe body detection mechanism rotates as a whole, completing the above steps and performing detection again. In this way, multi-point detection is achieved.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A precision welded cold-drawn steel pipe diameter linear inspection device, characterized in that: It comprises a carrying plate (2) and a rotation drive mechanism arranged on the carrying plate (2), the carrying plate (2) being provided with a feed channel (8) for passing a cold-drawn steel tube, and the rotation drive mechanism being provided with a tube body detection mechanism so as to drive the tube body detection mechanism to rotate about the central axis of the feed channel (8); The tube body detection mechanism comprises two fixed plates (7) and a guide rod (11). The guide rod (11) is arranged between the two fixed plates (7) for connecting the fixed plates (7). The guide rod (11) simultaneously passes through two detection pressure plates (3) so that the detection pressure plates (3) can move axially along the guide rod (11). The two fixed plates (7) are respectively connected to the two detection pressure plates (3) via telescopic units (5) so that the two detection pressure plates (3) can be opened and closed. One of the detection pressure plates (3) is provided with a detection unit for detecting the distance between the detection pressure plates (3).

2. A precision welded cold-drawn steel pipe diameter linear inspection device as claimed in claim 1, characterized in that: The detection unit comprises a mounting bracket (1) and a distance measuring sensor (10) arranged on the mounting bracket (1).

3. A precision welded cold-drawn steel pipe diameter linear inspection device as claimed in claim 1, characterized in that: A return spring (9) is sleeved on the guide rod (11), and the return spring (9) is located between the detection pressure plates (3).

4. A precision welded cold-drawn steel pipe diameter linear inspection device as claimed in claim 1, characterized in that: The rotary drive mechanism comprises a circular guide rail (12) and a gear ring (4) arranged on the carrier plate (2); a slider (15) is mounted on the fixed plate (7) and is slidably arranged on the guide rail (12); a motor (6) is arranged on one of the fixed plates (7); a gear (14) connected to an output end of the motor (6) is meshed with the gear ring (4).

5. A precision welded cold-drawn steel pipe diameter linear inspection device as claimed in claim 1, characterized in that: A support (13) is provided on the bearing plate (2).

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