Clamp for machining stainless steel pipe of water pump

Abstract

The utility model provides a clamp for machining a stainless steel pipe of a water pump, and relates to the technical field of pipe clamps, the clamp comprises a positioning structure and an anti-skid structure, a seat frame is arranged at one end of the positioning structure, an internal thread sleeve is machined on the surface of one side of the top of the seat frame, and a guide sleeve is machined on the surface of the other side of the top of the seat frame; the positioning structure comprises a control main rod, an external thread sleeve, a plurality of wheel carriers, a roller, a supporting rod and a pressing sleeve A; according to the technical key points, a pressing sleeve A is controlled to rotate, an external thread sleeve outside one end of a main control rod is driven to rotate in an internal thread sleeve, the threaded connection condition of the external thread sleeve and the internal thread sleeve is adjusted, the main control rod is made to move in the axis direction, and a plurality of wheel carriers are pulled to rotate outside corresponding supporting rods; and the roller at one end is supported on the inner wall of the stainless steel pipe, so that the stainless steel pipe can conveniently move outside the control main rod in the axis direction of the control main rod, and proper adjustment can be made according to actual machining requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe clamps, and specifically relates to a clamp for processing stainless steel pipes of water pumps. Background Art

[0002] A clamp refers to a device used in the mechanical manufacturing process to fix the processing object, make it occupy the correct position, and accept construction or inspection, also known as a fixture. Generally speaking, in any process of the technological process, a device used to quickly, conveniently, and safely install a workpiece can be called a clamp.

[0003] A clamp usually consists of positioning elements (to determine the correct position of the workpiece in the clamp), a clamping device, tool setting and guiding elements (to determine the relative position between the tool and the workpiece or guide the tool direction), indexing devices (to enable the workpiece to complete the processing of several stations in one installation, including rotary indexing devices and linear moving indexing devices), connecting elements, and a clamp body (the base of the clamp), etc.

[0004] As a hollow long round steel, stainless steel pipes are mainly widely used in industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, and mechanical instruments, as well as mechanical structure components, etc. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. When applying stainless steel pipes to water pumps as connecting components or conveying pipelines, in addition to welding them, it is also necessary to polish them and even perform cutting work.

[0005] In a patent document with the publication number of CN220362267U, a stainless steel pipe processing clamp makes the first threaded rod and the second threaded rod rotate by starting a servo motor. As the first threaded rod and the second threaded rod rotate, the support plate moves towards or away from each other, and a slider is set to limit the support plate to prevent it from rotating. In this way, the distance between the support plates can be adjusted according to the length of the stainless steel pipe, and then in cooperation with the clamping assembly, the clamping position can be adjusted according to the length of the stainless steel pipe, improving the clamping effect.

[0006] However, in the process of implementing the above technical solution, it is found that the above technical solution has the following technical problems:

[0007] This stainless steel pipe processing clamp is assembled and fixed by two semi-circular arc clamping plates symmetrically arranged up and down. When supporting the processing and fixing of stainless steel pipes, the distance between the two clamping parts can be adjusted to support the clamping work of different pipes. However, in the actual application process, limited by the fixed clamping position of the clamping plate, it is difficult to process the clamping contact area, and position adjustment is required during actual operation, which is rather troublesome. Content of the Utility Model

[0008] To overcome the existing deficiencies, an embodiment of the present application provides a fixture for processing stainless steel pipes of water pumps. By controlling the rotation of the pressure sleeve A, the external threaded sleeve outside one end of the control main rod rotates inside the internal threaded sleeve, adjusting the threaded connection between the external threaded sleeve and the internal threaded sleeve, so that the control main rod moves along the axis direction, facilitating the simultaneous pulling of multiple wheel frames to rotate outside the corresponding support rods. With the rollers at one end of the wheel frames supporting against the inner wall of the stainless steel pipe, it is convenient to support the stainless steel pipe during any processing method, enabling the stainless steel pipe to move along its axis direction outside the control main rod, which is conducive to making appropriate adjustments according to actual processing requirements;

[0009] Meanwhile, by adjusting the threaded connection between the pressure sleeve B and the internal control long rod, when one end of the pressure sleeve B supports against the surface of the pressure sleeve A, the internal control long rod can be pulled to slide inside the control main rod, making one end of the limit long rod support inside the stainless steel pipe, facilitating the restriction of the rolling of the wheel frame at the inner wall of the stainless steel pipe, so as to fix the stainless steel pipe to the outside of the positioning structure.

[0010] The technical solution adopted by the embodiment of the present application to solve its technical problems is:

[0011] A fixture for processing stainless steel pipes of water pumps, including a positioning structure and an anti-slip structure. The positioning structure is integrally sleeved outside the stainless steel pipe;

[0012] The anti-slip structure is arranged inside the stainless steel pipe;

[0013] One end of the positioning structure is provided with a seat frame. The surface on one side of the top of the seat frame is processed with an internal threaded sleeve, and the surface on the other side of the top of the seat frame is processed with a guide sleeve. The positioning structure extends from the inside of the stainless steel pipe to the surroundings, correcting the stainless steel pipe at the center in the horizontal plane. The anti-slip structure is loaded inside the positioning structure and restricts the stainless steel pipe from moving along the horizontal direction; the positioning structure includes a control main rod. One end of the control main rod is provided with an external threaded sleeve. The surface of the control main rod is hinged with multiple wheel frames, and one end of each of the multiple wheel frames is connected in a rolling manner with a roller. The middle of the wheel frame is hinged with a support rod; the anti-slip structure includes an internal control long rod. One end of the internal control long rod is hinged with two limit long rods, and the other end of the internal control long rod is connected in a threaded manner with a pressure sleeve B.

[0014] In a possible implementation manner, the multiple wheel frames are divided into multiple groups and are equally spaced along the axis of the control main rod. Each group has three, and the three wheel frames are equally spaced around the control main rod. The support rods are provided with three, and respectively pass through the interiors of multiple wheel frames at the same angle.

[0015] In a possible implementation, one end of each of the three support rods is assembled on one side of the seat frame. The three support rods are evenly spaced around the periphery of the guide sleeve. The control main rod is slidably connected inside the guide sleeve, and the external thread sleeve is threadedly connected inside the internal thread sleeve.

[0016] In a possible implementation, a straight cut surface is machined on the surface of one end of the control main rod. The external thread sleeve is sleeved and adaptively connected to the outside of this end of the control main rod. A pressure sleeve A is sleeved on one end of the internal control long rod. A same pin rod is pin-connected between the outside of one end of the pressure sleeve A and the control main rod, and the external thread sleeve is fixed to the outside of the control main rod by means of the pressure sleeve A.

[0017] In a possible implementation, two control rods B are machined on the outer wall of one end of the pressure sleeve A. The two control rods B control the pressure sleeve A to drive the external thread sleeve to rotate inside the internal thread sleeve, so that the control main rod moves along the axial direction, pulling the wheel frame to rotate on the outside of the support rod, and making the roller support on the inner wall of the stainless steel pipe.

[0018] In a possible implementation, a notch is machined at one end of the control main rod, and a strip-shaped groove is machined at one end of the internal control long rod. The strip-shaped groove extends from the end surface of the internal control long rod towards the inside. The limit long rod is movably connected inside the strip-shaped groove.

[0019] In a possible implementation, an adaptation chute is machined inside one end of the internal control long rod, and the pin rod pin-connected to the pressure sleeve A and the inside of the control main rod moves into the inside of the adaptation chute.

[0020] In a possible implementation, two control rods A are machined on the outer wall of one end of the pressure sleeve B. The two control rods A control the pressure sleeve B to rotate outside the internal control long rod, so that the other end of the pressure sleeve B supports on the surface of the pressure sleeve A, pulling the internal control long rod to slide inside the control main rod, and making the two limit long rods respectively rotate and extend from the top and bottom of the notch on the control main rod, and with the inner wall of one end of the notch as a fulcrum, abut against the inner wall of the stainless steel pipe.

[0021] The beneficial effects of this application are as follows:

[0022] First, in this solution, by controlling the rotation of the pressure sleeve A, the external thread sleeve outside one end of the control main rod is driven to rotate inside the internal thread sleeve, adjusting the threaded connection situation between the external thread sleeve and the internal thread sleeve, so that the control main rod moves along the axial direction, which is convenient for simultaneously pulling multiple wheel frames to rotate on the outside of the corresponding support rods. With the rollers at one end of the wheel frame supporting on the inner wall of the stainless steel pipe, it is convenient to support the stainless steel pipe during any processing method, enabling the stainless steel pipe to move along its axial direction outside the control main rod, which is beneficial for making appropriate adjustments according to actual processing requirements;

[0023] Second, in this solution, by adjusting the threaded connection between the bushing B and the internal control long rod, when one end of the bushing B supports on the surface of the bushing A, the internal control long rod can be pulled to slide inside the control main rod, so that one end of the limit long rod supports inside the stainless steel pipe, facilitating the restriction of the wheel frame from rolling on the inner wall of the stainless steel pipe, so as to fix the stainless steel pipe to the outside of the positioning structure. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the connection structure between the present invention and the stainless steel pipe;

[0025] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 For the present invention Figure 2 An enlarged schematic diagram of part A in it;

[0027] Figure 4 For the present invention Figure 2 An enlarged schematic diagram of part B in it;

[0028] Figure 5 It is a right view of the present invention.

[0029] Reference numerals: 1, stainless steel pipe; 2, roller; 3, wheel frame; 4, control main rod; 5, support rod; 6, guide sleeve; 7, control rod A; 8, bushing A; 9, bushing B; 10, internal thread sleeve; 11, control rod B; 12, seat frame; 13, external thread sleeve; 14, internal control long rod; 15, strip groove; 16, pin rod; 17, limit long rod. Detailed Embodiment

[0030] The technical solution in the embodiment of the present application is to solve the problems in the above background technology, and the general idea is as follows:

[0031] Embodiment 1:

[0032] This embodiment introduces the specific structure of a fixture for processing the stainless steel pipe of a water pump. Specifically, referring to Figures 1 - 3 as shown, it includes a positioning structure and an anti-slip structure that are integrally sleeved outside the stainless steel pipe 1. One end of the positioning structure is provided with a seat frame 12. An internal thread sleeve 10 is machined on the surface of one side of the top of the seat frame 12, and a guide sleeve 6 is machined on the surface of the other side of the top of the seat frame 12;

[0033] As Figure 1 , Figure 2 and Figure 4As shown in the figure, the positioning structure includes a control main rod 4, which is slidably connected inside a guide sleeve 6. An external thread sleeve 13 is threadedly connected inside an internal thread sleeve 10. One end of the control main rod 4 is provided with the external thread sleeve 13. A plurality of wheel frames 3 are hinged on the surface of the control main rod 4. One end of each of the plurality of wheel frames 3 is rotatably connected with a roller 2. The middle of the wheel frame 3 is hinged with a support rod 5 (there is a clearance between the hinge points of the wheel frame 3 and the support rod 5 to support the wheel frame 3 to move linearly when rotating outside the support rod 5 to avoid interference).

[0034] Among them, the plurality of wheel frames 3 are divided into multiple groups and are equally spaced along the axis of the control main rod 4. Each group has three. The three wheel frames 3 are equally spaced around the control main rod 4. And there are three support rods 5 (one end of each of the three support rods 5 is assembled on one side of the seat frame 12 and is equally spaced around the guide sleeve 6). By passing through the inside of the plurality of wheel frames 3 at the same angle respectively and ensuring that the plurality of wheel frames 3 are hinged outside the support rod 5, the same support rod 5 can be used to support the plurality of wheel frames 3 to support the control main rod 4 to move horizontally, control the plurality of wheel frames 3 to rotate synchronously around their hinge points with the support rod 5, and ensure that one end of the plurality of wheel frames 3 is synchronously supported on the inner wall of the stainless steel pipe 1.

[0035] Secondly, by machining a straight section on the surface of one end of the control main rod 4, the external thread sleeve 13 is sleeved and adaptively connected outside this end of the control main rod 4 (restricting the rotation of the external thread sleeve 13 outside the control main rod 4). When a pressure sleeve A8 is sleeved on one end of the internal control long rod 14 and the same pin rod 16 is pin-connected between the outside of one end of the pressure sleeve A8 and the control main rod 4, the external thread sleeve 13 can be fixed outside the control main rod 4 by means of the pressure sleeve A8 to ensure that by controlling the rotation of the pressure sleeve A8, the threaded connection between the external thread sleeve 13 and the internal thread sleeve 10 is adjusted, so as to push and pull the internal control long rod 14 to slide inside the guide sleeve 6.

[0036] Furthermore, in order to facilitate the pressure sleeve A8 to drive the external thread sleeve 13 outside the control main rod 4 to rotate with the control main rod 4, as Figure 1 and Figure 4 shown, two control rods B11 are machined on the outer wall of one end of the pressure sleeve A8. By using the two control rods B11 to control the pressure sleeve A8 to drive the external thread sleeve 13 to rotate inside the internal thread sleeve 10, the control main rod 4 can be moved along the axis direction, pulling the wheel frame 3 to rotate outside the support rod 5, and making the roller 2 support on the inner wall of the stainless steel pipe 1, so that the support positioning structure can extend from the inside of the stainless steel pipe 1 to the surroundings, correct the stainless steel pipe 1 at the center in the horizontal plane, and facilitate the clamping work of stainless steel pipes with different diameters.

[0037] By adopting the above technical solutions:

[0038] In the above design, a control main rod 4 is erected by arranging a guide sleeve 6 on one side of the seat frame 12. A plurality of wheel frames 3 are hinged on the surface of the control main rod 4. The plurality of wheel frames 3 are evenly distributed along the axis of the wheel frame 3 and are evenly surrounded around the center of the control main rod 4. When using two control rods B11 to control the rotation of the pressure sleeve A8 and drive the external thread sleeve 13 outside one end of the control main rod 4 to rotate inside the internal thread sleeve 10, the threaded connection between the external thread sleeve 13 and the internal thread sleeve 10 can be adjusted, so that the control main rod 4 moves along the axis direction, facilitating the simultaneous pulling of the plurality of wheel frames 3 to rotate at the hinge points on the corresponding support rods 5. When the rollers 2 at one end of the wheel frame 3 support on the inner wall of the stainless steel pipe 1, stainless steel pipes with different diameters are clamped, facilitating the support of the stainless steel pipe 1 during any processing method, enabling the stainless steel pipe 1 to move along its axis direction outside the control main rod 4 (in this state, the wheel frame 3 rolls on the inner wall of the stainless steel pipe 1), and making adaptive adjustments, which is simple and efficient.

[0039] Embodiment 2:

[0040] Based on Embodiment 1, this embodiment introduces the specific structure of the anti-slip structure arranged inside the stainless steel pipe 1, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 shown. The anti-slip structure includes an inner control long rod 14. Two limit long rods 17 are hinged at one end of the inner control long rod 14. A pressure sleeve B9 is connected to the other end of the inner control long rod 14 in a threaded manner. A notch is processed at one end of the control main rod 4. The anti-slip structure is loaded inside the positioning structure and restricts the stainless steel pipe 1 from moving along the horizontal direction;

[0041] Among them, by processing a strip-shaped groove at one end of the inner control long rod 14, the limit long rod 17 is movably connected inside the strip-shaped groove, and the strip-shaped groove extends from the end face of the inner control long rod 14 towards the inside, facilitating the rotation of the two limit long rods 17 to be parallel to the axis of the inner control long rod 14, so as to support the two limit long rods 17 to pass through the inside of the control main rod 4. When one end of the two limit long rods 17 is sent into the inside of the strip-shaped groove, both ends of the limit long rod 17 extend out from the bottom and top of the notch respectively;

[0042] Secondly, in order to facilitate the control of the sliding of the inner control long rod 14 inside the control main rod 4, such as Figure 4 and Figure 1As shown in the figure, two control rods A7 are machined on the outer wall at one end of the compression sleeve B9. The compression sleeve B9 is controlled to rotate outside the internal control long rod 14 through the two control rods A7, so that the other end of the compression sleeve B9 supports on the surface of the compression sleeve A8. The internal control long rod 14 can be pulled to slide inside the control main rod 4, and the limit long rod 17 is controlled to rotate around its hinge point with the internal control long rod 14. With the inner wall at one end of the notch as the fulcrum, it abuts against the inner wall of the stainless steel pipe 1, which is convenient for restricting the rolling of the wheel frame 3 on the inner wall of the stainless steel pipe 1 by means of the friction force generated by applying pressure to the inner wall of the stainless steel pipe 1 at one end of the limit long rod 17;

[0043] Furthermore, in order to facilitate the sliding of the internal control long rod 14 inside the control main rod 4 without affecting the pin connection of the pin rod 16 between the compression sleeve A8 and the control main rod 4, as Figure 4 shown in the figure, an adaptation chute 15 is machined inside one end of the internal control long rod 14. By moving the pin rod 16 pin-connected to the inside of the compression sleeve A8 and the control main rod 4 into the inside of the adaptation chute 15, the internal control long rod 14 and the control main rod 4 can be made independent of each other.

[0044] By adopting the above technical solutions:

[0045] In the above design, the internal control long rod 14 is arranged inside the control main rod 4, and the compression sleeve B9 is threadedly connected to one end of the internal control long rod 14, so that the two limit long rods 17 on the other end of the internal control long rod 14 extend out from the top and bottom of the notch on the control main rod 4 respectively. When adjusting the threaded connection between the compression sleeve B9 and the internal control long rod 14 so that one end of the compression sleeve B9 supports on the surface of the compression sleeve A8, the internal control long rod 14 can be pulled to slide inside the control main rod 4, and the limit long rod 17 takes the inner wall at one end of the notch on the control main rod 4 as the fulcrum, and one end of the limit long rod 17 supports inside the stainless steel pipe 1, which is convenient for restricting the rolling of the wheel frame 3 on the inner wall of the stainless steel pipe 1 by means of the friction force generated by applying pressure to the inner wall of the stainless steel pipe 1 at one end of the limit long rod 17, so as to fix the stainless steel pipe 1 to the outside of the positioning structure.

[0046] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A fixture for processing stainless steel pipes of a water pump, characterized in that, Including: A positioning structure which is integrally sleeved outside the stainless steel pipe (1); An anti-slip structure which is arranged inside the stainless steel pipe (1); One end of the positioning structure is provided with a seat frame (12). An internally threaded sleeve (10) is machined on the surface of one side at the top of the seat frame (12), and a guide sleeve (6) is machined on the surface of the other side at the top of the seat frame (12). The positioning structure extends around from the inside of the stainless steel pipe (1) to correct the stainless steel pipe (1) at the center in the horizontal plane. The anti-slip structure is loaded inside the positioning structure and restricts the stainless steel pipe (1) from moving along the horizontal direction; Wherein, the positioning structure includes a control main rod (4). One end of the control main rod (4) is provided with an externally threaded sleeve (13). A plurality of wheel frames (3) are hinged on the surface of the control main rod (4). One end of each of the plurality of wheel frames (3) is connected with a roller (2) in a rolling manner, and a support rod (5) is hinged in the middle of the wheel frame (3); The anti-slip structure includes an internally controlled long rod (14). Two limit long rods (17) are hinged at one end of the internally controlled long rod (14), and a compression sleeve B (9) is connected to the other end of the internally controlled long rod (14) in a threaded manner.

2. The fixture for processing the stainless steel pipe of a water pump according to claim 1, characterized in that: The plurality of wheel frames (3) are divided into multiple groups and are equally spaced along the axis of the control main rod (4). Each group has three. The three wheel frames (3) are equally spaced around the control main rod (4). There are three support rods (5) which respectively pass through the interiors of the plurality of wheel frames (3) at the same angle.

3. The fixture for processing the stainless steel pipe of the water pump according to claim 1, characterized in that: One end of each of the three support rods (5) is assembled on one side of the seat frame (12). The three support rods (5) are equally spaced around the guide sleeve (6). The control main rod (4) is connected to the inside of the guide sleeve (6) in a sliding manner, and the externally threaded sleeve (13) is connected to the inside of the internally threaded sleeve (10) in a threaded manner.

4. A fixture for processing a stainless steel pipe of a water pump according to claim 1, characterized in that: A straight cut surface is machined on the surface of one end of the control main rod (4). The externally threaded sleeve (13) is sleeved and adaptively connected to the outside of this end of the control main rod (4). A compression sleeve A (8) is sleeved on one end of the internally controlled long rod (14). The same pin rod (16) is pin-connected between the outside of one end of the compression sleeve A (8) and the control main rod (4). The externally threaded sleeve (13) is fixed to the outside of the control main rod (4) by means of the compression sleeve A (8).

5. A fixture for processing a stainless steel pipe of a water pump according to claim 4, characterized in that: Two control rods B (11) are machined on the outer wall at one end of the compression sleeve A (8). The compression sleeve A (8) is controlled by the two control rods B (11) to drive the externally threaded sleeve (13) to rotate inside the internally threaded sleeve (10), so that the control main rod (4) moves along the axial direction, pulling the wheel frame (3) to rotate outside the support rod (5) and making the roller (2) support on the inner wall of the stainless steel pipe (1).

6. The fixture for processing the stainless steel pipe of a water pump according to claim 1, characterized in that: A notch is machined at one end of the control main rod (4). A strip-shaped groove is machined at one end of the internally controlled long rod (14). The strip-shaped groove extends from the end face of the internally controlled long rod (14) towards the inside, and the limit long rod (17) is movably connected inside the strip-shaped groove.

7. The fixture for processing stainless steel pipes of a water pump according to claim 4, characterized in that: An adaptation chute (15) is machined inside one end of the internal control long rod (14), and a pin rod (16) that is pin-connected to the inside of the bushing A (8) and the control main rod (4) moves inside the adaptation chute (15).

8. The fixture for processing the stainless steel pipe of a water pump according to claim 6, wherein: Two control rods A (7) are machined on the outer wall at one end of the bushing B (9). The rotation of the bushing B (9) outside the internal control long rod (14) is controlled by the two control rods A (7), so that the other end of the bushing B (9) supports on the surface of the bushing A (8), pulling the internal control long rod (14) to slide inside the control main rod (4), causing the two limit long rods (17) to respectively rotate and extend from the top and bottom of the notch on the control main rod (4), and with the inner wall at one end of the notch as the fulcrum, abutting against the inner wall of the stainless steel pipe (1).

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