Straightness detection device for pipe fitting

Abstract

The utility model relates to the technical field of pipe fitting straightness detection, in particular to a straightness detection device for a pipe fitting. The device comprises a workbench and a detection assembly used for detecting the straightness of a pipe fitting, the detection assembly is arranged at the end of a connecting rod, the connecting rod is connected to a supporting plate in a sliding mode, the connecting rod is fixedly connected with a positioning column, the positioning column is arranged on a limiting disc in a penetrating mode, and the limiting disc is provided with an arc-shaped sliding way matched with the positioning column. Passing openings are formed in the center of the supporting plate and the center of the limiting disc, the limiting disc is rotationally connected to the supporting plate, and a driving assembly used for driving the limiting disc to rotate is arranged on the supporting plate; a supporting assembly used for supporting a pipe fitting is arranged on the workbench. The device can be adjusted adaptively according to the models of the steel pipe fittings so as to be suitable for the steel pipe fittings of different models; according to the device, the change of the straightness of the pipe fitting is converted into a numerical value of pressure change, and a detection result can be visually presented, so that an operator can know the detection result conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipe straightness detection technical field, specifically be used for pipe straightness detection device. BACKGROUND

[0002] At present, in the production enterprise of steel pipe, generally adopt hot rolling piercing, continuous pipe rolling and tension reducing pipe making process, in order to improve the comprehensive performance of steel pipe, steel pipe also needs to carry out relevant heat treatment, is influenced by own gravity, rolling force, uneven cooling or transportation knock, steel pipe will produce similar bending, oval or collapse quality problem along the axial direction, this will directly influence the shape size precision of steel pipe, and then influence the use performance and processing performance of steel pipe.

[0003] The steel pipe straightness detection method currently adopted is generally the line pulling method for measuring the straightness of steel pipe, that is, a tight thin rope is pulled along the surface of steel pipe from one end to the other end, and the maximum distance of the tight thin rope to the surface of steel pipe is measured, that is, the straightness. This method needs 3 operators to cooperate with each other, two of which pull a thin rope at both ends of the steel pipe, and the third measures the maximum distance of the thin rope to the surface of the steel pipe. However, the line pulling method is too time-consuming and affects work efficiency.

[0004] Chinese patent CN202321351009.8 discloses a straightness detection device for steel pipe production, and the publication number is CN219694151U. The device includes a workbench, an adjusting groove is formed in one side outer wall of the workbench, a threaded rod is installed on the inner wall of the adjusting groove, a motor one is installed on one end side wall of the workbench, a positioning frame is fixedly connected to one end outer wall of the workbench; a driving frame is fixedly connected to the outer wall of the driving frame and slidably connected to the inner wall of the adjusting groove, a motor two is installed on the inner wall of the driving frame, a clamping sleeve is rotatably connected to the inner wall of the driving frame through a rotating shaft; a detection seat is fixedly connected to one side outer wall of the workbench and one side outer wall of the detection seat, a spring one is fixedly connected to one side outer wall of the detection seat, a fixed plate is fixedly connected to one end side wall of the spring one, a pressure sensor is installed on one side outer wall of the fixed plate; and an adjusting sleeve is fixedly connected to one end side wall of the detection seat and one side outer wall of the adjusting sleeve, a sliding groove is formed in one side of the adjusting sleeve, a spring two is fixedly connected to one side inner wall of the adjusting sleeve, a bottom plate is arranged on the other end side wall of the spring two, the outer wall of the bottom plate is fixedly connected to an extrusion plate in close contact with the pressure sensor, and a detection rod is fixedly connected to one side outer wall of the bottom plate. However, the device has some defects: the device can only be used for the same type of steel pipe, and when the diameter of the steel pipe changes, the device cannot be used. UTILITY MODEL CONTENTS

[0005] In order to solve the above prior art problems, the utility model provides a straightness detection device for pipe fittings, when the model of steel pipe fittings changes, the device can make adjustment to the model of steel pipe fittings to be suitable for different models of steel pipe fittings.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a straightness detection device for pipe fittings, including workbench, the detection component for detecting the straightness of pipe fittings, the detection component is arranged at the end of connecting rod, the connecting rod is slidingly connected on the support plate, the connecting rod is fixedly connected with the positioning column, the positioning column is arranged on the limiting disc, the arc slide of the positioning column is opened on the limiting disc, the through -hole is opened in the center of the support plate and the limiting disc, the limiting disc is rotatably connected on the support plate, the support plate is provided with the drive assembly for driving the rotation of limiting disc, the support assembly for supporting pipe fittings is arranged on the workbench.

[0007] Adopt the above structure design, when the model of steel pipe fittings changes, rotate the limiting disc, the positioning column slides in the arc slide, and then the connecting rod slides on the support plate, so that the length of the connecting rod can be adjusted according to the model of steel pipe fittings to be suitable for different models of steel pipe fittings.

[0008] Preferably, a plurality of arc positioning grooves with the same center are opened on the limiting disc, the limiting rod is slidably arranged in the arc positioning groove, and the limiting rod is fixedly connected to the support plate.

[0009] Adopt the above structure design, limit the limiting disc, so that the limiting disc can rotate smoothly on the support plate without deviation.

[0010] Preferably, the drive assembly comprises a turbine sleeved on the limiting disc, a worm engaged with the turbine, the worm is rotatably connected to the protection shell, the protection shell is fixedly connected to the support plate, and the end of the worm is fixedly connected with a hexagonal rotating head.

[0011] Adopt the above structure design, the worm and the worm wheel have the characteristics of self-locking, after the rotation of the limiting disc, the limiting disc can be fixed, and then the connecting rod is fixed, so that the connecting rod is prevented from moving under the influence of external force, and the pipe fitting detection is not accurate.

[0012] Preferably, the support assembly comprises a horizontal plate for supporting the pipe, a first sliding block slidingly connected to the lower surface of the horizontal plate, a first scissor lever hingedly connected to the upper end of the first sliding block, a second scissor lever rotatably connected to the first scissor lever, a second sliding block hingedly connected to the lower end of the first scissor lever, a driving screw threadedly penetrating the second sliding block, the upper end of the second scissor lever being hingedly connected to the horizontal plate, the lower end of the second scissor lever being hingedly connected to the upper end of a fixed plate, the fixed plate being fixedly connected to the workbench, and the driving screw being rotatably connected to the fixed plate.

[0013] With the above structure, when the type of the pipe changes, the diameter of the pipe changes accordingly, and the height of the support assembly should be adjusted accordingly.

[0014] Preferably, the detection assembly comprises a mounting hole formed in the end of the connecting rod, a pressure sensor fixedly connected to the bottom of the mounting hole, a transmission spring fixedly connected to the tail end of the pressure sensor, and a sliding rod fixedly connected to the head end of the transmission spring, the sliding rod penetrating the mounting hole, and the end of the sliding rod being fixedly connected to an arc-shaped rod.

[0015] With the above structure, when the shape of the pipe changes, the pressure of the outer wall of the pipe on the pressure sensor also changes greatly, and the change in the pressure is converted into the change in the straightness of the pipe, and the detection result can be directly presented, which is convenient for the operator to know the detection result.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] 1) The device can be adjusted according to the type of the steel pipe, and is suitable for different types of steel pipes.

[0018] 2) The device converts the change in the straightness of the pipe into the value of the change in the pressure, and the detection result can be directly presented, which is convenient for the operator to know the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the utility model;

[0020] Figure 2 is a structural schematic view of the utility model from the front;

[0021] Figure 3 is a structural schematic view of the utility model from the right;

[0022] Figure 4 is a structural schematic view of the utility model from the left; Figure 2An enlarged structural schematic view at A;

[0023] Figure 5 For the utility model Figure 2 An enlarged structural schematic view at B; Specific implementation

[0024] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 The utility model provides a technical scheme: a straightness detection device for pipe fitting, including workbench 1, detection assembly for detecting the straightness of pipe fitting, detection assembly sets up at the end of connecting rod 2, connecting rod sets up three and presents annular arrangement, connecting rod 2 is connected on support plate 21 slidingly, support plate 21 is fixedly connected on workbench 1, the fixed connection of connecting rod 2 is positioned on the column 22, the positioning column 22 is equipped with the arc slide 24 of matching the positioning column 22 on the limiting disc 23, the arc slide 24 of the first end of support plate 21 and limiting disc 23 center all sets up through the mouth 25, the edge of arc slide 24 is close to the edge of limiting disc 23, the tail end of arc slide 24, limiting disc 23 is rotatably connected on support plate 21, support plate 21 is provided for driving the rotation of limiting disc 23 drive assembly, workbench 1 is provided for supporting pipe fitting support assembly.

[0025] A plurality of arc positioning grooves 31 with the same center are formed on the limiting disc 23, a limiting rod 32 is slidably arranged in the arc positioning groove 31, and the limiting rod 32 is fixedly connected to the support plate 21.

[0026] The drive assembly comprises a turbine 41 sleeved on the limiting disc 23, and a worm 42 engaged with the turbine 41, the worm 42 is rotatably connected to a protection shell 43, the protection shell 43 is fixedly connected to the support plate 21, and the end of the worm 42 is fixedly connected to a hexagonal rotating head 44.

[0027] The support assembly comprises a horizontal plate 51 for supporting the pipe, a first sliding block 52 connected to the lower surface of the horizontal plate 51, a first scissor lever 53 hingedly connected to the first sliding block 52, a second scissor lever 54 rotatably connected to the first scissor lever 53, a second sliding block 55 hingedly connected to the lower end of the first scissor lever 53, a driving screw 56 threaded through the second sliding block 55, the upper end of the second scissor lever 54 being hingedly connected to the horizontal plate 51, the lower end of the second scissor lever 54 being hingedly connected to the upper end of a fixed plate 57, the fixed plate 57 being fixedly connected to the workbench 1, and the driving screw 56 being rotatably connected to the fixed plate 57. The end of the driving screw 56 is fixedly connected to a hexagonal rotary joint, so that the worker can rotate the driving screw 56 by using a wrench.

[0028] The extension direction of the horizontal plate 51 is consistent with the direction in which the pipe enters the through port 25, and a pipe groove for placing the pipe is formed in the horizontal plate 51.

[0029] The detection assembly comprises a mounting hole formed in the end of the connecting rod 2, a pressure sensor 61 fixedly connected to the bottom of the mounting hole, a transmission spring 62 fixedly connected to the tail end of the pressure sensor 61, a sliding rod 63 fixedly connected to the head end of the transmission spring 62, the sliding rod 63 being threaded through the mounting hole, and an arc-shaped lever 64 fixedly connected to the end of the sliding rod 63.

[0030] When the device is in use, the batch of pipes is detected, and when the diameter of the pipe changes;

[0031] In the first step, the worker rotates the worm 42 by using a wrench, the turbine 41 cooperating with the worm 42 is rotated, the limiting disc 23 is further rotated, the positioning column 22 slides along the arc-shaped slide 24, the connecting rod 2 slides on the support plate 21, and the extension length of the connecting rod 2 in the through port 25 can be adjusted according to the diameter of the pipe.

[0032] In the second step, the worker rotates the driving screw 56 by using a wrench, the second sliding block 55 is moved, the first scissor lever 53 and the second scissor lever 54 are further stretched or contracted, the first sliding block 52 slides on the horizontal plate 51, the height of the horizontal plate 51 is changed accordingly, and the height of the horizontal plate 51 can be adjusted according to the change of the diameter of the pipe.

[0033] In the third step, the pipe is detected, the pipe is extended into the through port 25, the outer wall of the pipe is in contact with the arc-shaped lever 64, when the pipe is deformed or bent at a certain position, the arc-shaped lever 64 is compressed, the pressure value transmitted by the pressure sensor 61 is greatly changed through the transmission spring 62, the position of the pipe is detected, the pipe does not meet the straightness standard, and the next step is processed.

[0034] The structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and do not have technical substantial meaning, and any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" and the like cited in the specification are only for the convenience of clear description, and are not used to limit the scope of the utility model, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also regarded as the scope of the utility model.

[0035] The utility model has been described above with reference to the preferred embodiments, but the protection scope of the utility model is not limited thereto, and all the technical solutions falling within the scope of the claims are within the protection scope of the utility model. Various improvements can be made and the components therein can be replaced with equivalents without departing from the scope of the utility model. In particular, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any manner.

Claims

1. A straightness detection device for a pipe, comprising a worktable (1) and a detection assembly for detecting the straightness of the pipe, characterized in that: The detection assembly is arranged at the end of the connecting rod (2), the connecting rod (2) is slidingly connected on the support plate (21), the connecting rod (2) is fixedly connected with the positioning column (22), the positioning column (22) is arranged on the limiting disc (23), the arc-shaped sliding channel (24) matched with the positioning column (22) is formed on the limiting disc (23), the through hole (25) is formed in the center of the support plate (21) and the limiting disc (23), the limiting disc (23) is rotatably connected on the support plate (21), and the driving assembly for driving the limiting disc (23) to rotate is arranged on the support plate (21); the support assembly for supporting the pipe is arranged on the workbench (1).

2. A straightness detection device for a pipe according to claim 1, characterized in that: A plurality of arc-shaped positioning grooves (31) with the same center are formed on the limiting disc (23), and the limiting rod (32) is slidingly arranged in the arc-shaped positioning groove (31).

3. A straightness detection device for a pipe according to claim 1 or 2, characterized in that: The driving assembly comprises a turbine (41) arranged on the limiting disc (23), and a worm (42) engaged with the turbine (41), the worm (42) is rotatably connected on the protection shell (43), the protection shell (43) is fixedly connected on the support plate (21), and the hexagonal rotating head (44) is fixedly connected at the end of the worm (42).

4. A straightness detection device for a pipe according to claim 1 or 2, characterized in that: The support assembly comprises a horizontal plate (51) for supporting the pipe, a first sliding block (52) slidingly connected on the lower surface of the horizontal plate (51), a first scissor lever (53) hingedly connected on the upper end of the first sliding block (52), a second scissor lever (54) rotatably connected with the first scissor lever (53), a second sliding block (55) hingedly connected with the lower end of the first scissor lever (53), a driving screw (56) threadedly arranged on the second sliding block (55), the upper end of the second scissor lever (54) is hingedly connected on the horizontal plate (51), the lower end of the second scissor lever (54) is hingedly connected on the upper end of the fixed plate (57), the fixed plate (57) is fixedly connected on the workbench (1), and the driving screw (56) is rotatably connected on the fixed plate (57).

5. The straightness detection device for a pipe according to claim 1, wherein: The detection assembly comprises a mounting hole formed at the end of the connecting rod (2), a pressure sensor (61) fixedly connected on the bottom of the mounting hole, a transmission spring (62) fixedly connected on the tail end of the pressure sensor (61), and a sliding rod (63) fixedly connected with the head end of the transmission spring (62), the sliding rod (63) is arranged in the mounting hole, and the arc-shaped rod (64) is fixedly connected on the end of the sliding rod (63).

Images