A buffer type clamping tool for oil pipe machining

Abstract

This utility model discloses a buffer-type clamping fixture for oil pipe processing, belonging to the field of oil pipe processing technology. It includes a machine base, a top plate, a fixed sleeve, a slider, a support base, a clamping base, and an elastic element. The top plate is fixedly mounted above the machine base, and the fixed sleeve is fixedly connected to the top plate. The slider is slidably mounted on the fixed sleeve along the longitudinal direction. A driving component for driving the slider's movement is mounted on the top plate. The support base is fixedly mounted on the machine base, and the clamping base is slidably disposed on the fixed sleeve along the longitudinal direction, with the clamping base and support base facing each other. The elastic element is longitudinally telescopically disposed between the slider and the clamping base. The upper end of the elastic element is fixedly connected to the slider, and the lower end of the elastic element is fixedly connected to the clamping base. This buffer-type clamping fixture for oil pipe processing uses the movement of the slider to deform the elastic element, thereby clamping the oil pipe. The elastic element buffers the movement of the slider, preventing excessive wear or even deformation of the oil pipe and ensuring the processing quality of the oil pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pipe processing technical field, especially, relate to a buffer type clamping tool for oil pipe processing. BACKGROUND

[0002] Oil pipe is the important carrier of oil delivery, plays the important role in the oil exploration and mining field. The processing of oil pipe generally includes the preparation, the forming processing of pipe blank, heat treatment, butt joint and performance detection steps, wherein, the forming processing of pipe blank includes cutting, punching, welding and other processing technology, the above-mentioned each process needs to adopt the clamping tool to clamp and fix the oil pipe in the processing, and the reliable clamping can directly determine the quality of subsequent forming processing.

[0003] For the clamping mode of oil pipe, the most commonly used is to adopt V-shaped block clamping, namely, the lower V-shaped block is fixedly installed on the base, the upper V-shaped block is movably installed on the upper support plate along the longitudinal direction, the upper V-shaped block is generally driven by the air cylinder, when clamping, first, the oil pipe is placed on the lower V-shaped block, then the air cylinder is started, the upper V-shaped block moves downward under the driving of the air cylinder, so as to clamp and fix the oil pipe between the two V-shaped blocks. The inventor found that the above-mentioned clamping mode has certain disadvantages after using it for a long time, for example, the moving distance of the upper V-shaped block is completely determined by the air cylinder, when the extension end of the air cylinder extends for a small distance, the V-shaped block cannot reliably clamp and fix the oil pipe, and when the extension end of the air cylinder extends for a large distance, the excessive downward movement of the V-shaped block can cause serious abrasion to the surface of the oil pipe, even cause the deformation of the oil pipe, thereby affecting the quality of subsequent processing, therefore, it is necessary to improve the clamping tool of the oil pipe to overcome the above-mentioned defects. SUMMARY

[0004] The technical problem to be solved by the utility model is: in order to overcome the above-mentioned defects in the prior art, the utility model provides a buffer type clamping tool for oil pipe processing, which can realize stable clamping and avoid serious abrasion or deformation of the oil pipe caused by the movement of the upper V-shaped block.

[0005] The utility model adopts the technical scheme that: a buffer type clamping tool for oil pipe processing, including machine table, roof, fixed sleeve, sliding block, support seat, clamping seat and elastic piece, the roof is fixedly arranged on the top of machine table, the fixed sleeve is fixedly connected with the roof, the sliding block is slidably installed on the fixed sleeve along the longitudinal direction, the roof is installed with the driving assembly for driving the sliding block to move, the support seat is fixedly installed on the machine table, the clamping seat is slidably arranged on the fixed sleeve along the longitudinal direction, the clamping seat is oppositely arranged with the support seat, the elastic piece is telescopically arranged between the sliding block and the clamping seat along the longitudinal direction, the upper end of the elastic piece is fixedly connected with the sliding block, and the lower end of the elastic piece is fixedly connected with the clamping seat.

[0006] Furthermore, the upper end of the fixing sleeve is fixedly connected to the top plate, and the upper surface of the clamping seat is provided with a groove. The clamping seat is sleeved on the outside of the fixing sleeve through the groove, and the bottom of the fixing sleeve is longitudinally and movably inserted into the groove.

[0007] Furthermore, the bottom of the outer surface of the fixed sleeve extends outward to form a limiting edge, and a limiting ring is fixedly installed on the upper surface of the clamping seat, the upper surface of the limiting ring abutting against the upper surface of the limiting edge.

[0008] Furthermore, the elastic element is located in the groove, and the lower end of the elastic element is fixedly connected to the bottom wall of the groove. The elastic element is a spring, and a telescopic rod is provided between the slider and the clamping seat.

[0009] Furthermore, the telescopic rod includes an inner tube and an outer tube. The lower end of the inner tube is fixedly connected to the bottom wall of the groove, and the upper end of the outer tube is fixedly connected to the bottom of the slider. The outer tube is slidably sleeved on the outside of the inner tube along the longitudinal direction.

[0010] Furthermore, both the upper surface of the support base and the lower surface of the clamping base are provided with V-shaped grooves.

[0011] Furthermore, the drive assembly includes a lead screw rotatably mounted on a top plate, the lower end of the lead screw extending into a fixed sleeve, the slider slidably disposed within the fixed sleeve, and the lead screw being threadedly connected to the slider.

[0012] Furthermore, the drive assembly preferably includes a drive gear, a driven gear, and a hand crank. The drive gear is rotatably connected to the top plate, the driven gear is fixedly connected to the upper end of the lead screw, and the hand crank is fixedly connected to the drive gear.

[0013] Furthermore, the outer diameter of the driving gear is larger than the outer diameter of the driven gear.

[0014] The beneficial effects of this utility model are as follows: The buffer-type clamping fixture for oil pipe processing of this utility model compresses the elastic element when the slider moves downward. The compression amount of the elastic element is adjusted to control the clamping force of the clamping seat on the oil pipe, which has a certain buffering effect on the movement of the slider. This avoids damage to the surface of the oil pipe or even deformation of the oil pipe caused by the large downward movement of the slider when the slider and the clamping seat are directly fixedly connected. This greatly improves the reliability of oil pipe clamping and ensures the processing quality of the oil pipe. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1This is a perspective view of the buffer-type clamping fixture for oil pipe processing according to this utility model;

[0017] Figure 2 yes Figure 1 The top view of the buffer-type clamping fixture for tubing processing shown.

[0018] Figure 3 yes Figure 2 The image shows a cross-sectional view of the buffer-type clamping fixture used for tubing processing along line AA.

[0019] In the diagram: 1. Machine base, 2. Top plate, 21. Support column, 3. Fixing sleeve, 31. Limiting edge, 4. Slider, 5. Support seat, 51. V-groove, 6. Clamping seat, 61. Groove, 62. Limiting ring, 7. Elastic element, 8. Drive assembly, 81. Lead screw, 82. Rotating gear, 83. Driven gear, 84. Hand crank, 9. Telescopic rod, 91. Inner tube, 92. Outer tube. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0021] Please see Figures 1-3 This utility model provides a buffer-type clamping fixture for oil pipe processing, including a machine base 1, a top plate 2, a fixed sleeve 3, a slider 4, a support base 5, a clamping base 6, and an elastic element 7. The top plate 2 is fixedly mounted above the machine base 1, the fixed sleeve 3 is fixedly connected to the top plate 2, the slider 4 is mounted on the fixed sleeve 3 and can slide relative to the fixed sleeve 3 in the longitudinal direction, the top plate 2 is equipped with a driving assembly 8 for driving the slider 4 to move, the support base 5 is fixedly mounted on the machine base 1, the clamping base 6 is slidably disposed on the fixed sleeve 3 in the longitudinal direction, the clamping base 6 is disposed opposite to the support base 5, and the elastic element 7 is longitudinally telescopically disposed between the slider 4 and the clamping base 6, wherein the upper end of the elastic element 7 is fixedly connected to the slider 4, and the other end of the elastic element 7 is fixedly connected to the clamping base 6.

[0022] This utility model discloses a buffer-type clamping fixture for oil pipe processing. In use, the clamping seat 6 is first pulled upward against the elastic force of the elastic element 7, so that the clamping seat 6 is away from the support seat 5, thus making room for the oil pipe to pass through. When the oil pipe passes through the gap between the support seat 5 and the clamping seat 6, the upward pulling force on the clamping seat 6 is released. At this time, the clamping seat 6 is pressed against the oil pipe under the action of gravity and the elastic force of the elastic element 7. Then, the drive assembly 8 is operated to drive the slider 4 to move downward. The downward movement of the slider 4 will compress the elastic element 7 downward, thereby increasing the downward pressure of the elastic element 7 on the clamping seat 6, thus realizing the clamping function of the clamping seat 6 in fixing the oil pipe.

[0023] During the above process, when the slider 4 moves downward, it does not directly drive the clamping seat 6 to move downward. Instead, it controls the clamping force of the clamping seat 6 on the oil pipe by compressing the elastic element 7 and adjusting the compression amount of the elastic element 7. This has a certain buffering effect on the movement of the slider 4, avoiding damage to the surface of the oil pipe or even deformation of the oil pipe due to the large downward movement of the slider 4 when the slider 4 and the clamping seat 6 are directly fixedly connected. This greatly improves the reliability of the oil pipe clamping and ensures the processing quality of the oil pipe.

[0024] The top plate 2 has a flat plate structure and is fixedly mounted on the upper surface of the machine base 1 by multiple support columns 21. The fixing sleeve 3 has a square sleeve structure with both ends through it. The upper end of the fixing sleeve 3 is fixedly connected to the top plate 2. The upper surface of the clamping seat 6 is recessed downward to form a groove 61. The clamping seat 6 is sleeved on the outside of the fixing sleeve 3 through the groove 61, and the bottom of the fixing sleeve 3 is movably inserted into the groove 61 longitudinally. In order to prevent the clamping seat 6 from separating from the fixing sleeve 3, the bottom of the outer surface of the fixing sleeve 3 extends outward to form a limiting edge 31. A limiting ring 62 is fixedly installed on the edge of the upper surface of the clamping seat 6. The limiting ring 62 has a ring structure and is arranged opposite to the limiting edge 31. The lower surface of the limiting ring 62 can abut against the upper surface of the limiting edge 31, thereby preventing the clamping seat 6 from falling off from below the fixing sleeve 3. Furthermore, the inner ring surface of the limiting ring 62 is in contact with the outer surface of the fixing sleeve 3. Since the fixing sleeve 3 is a square sleeve, the contact relationship between the two surfaces ensures that the clamping seat 6 cannot rotate relative to the fixing sleeve 3. The limiting ring 62 can be installed on the upper surface of the clamping seat 6 by fasteners such as bolts or screws.

[0025] The elastic element 7 is located within the groove 61, and its lower end is fixedly connected to the bottom wall of the groove 61. In this embodiment, the elastic element 7 is a spring. To prevent the spring from bending laterally during compression, a telescopic rod 9 is also provided between the slider 4 and the clamping seat 6. The spring is sleeved on the outside of the telescopic rod 9. In use, when the slider 4 moves longitudinally relative to the clamping seat 6, the telescopic rod 9 extends or shortens adaptively with the deformation of the spring, thereby limiting the spring and preventing it from bending laterally.

[0026] In one specific embodiment, the telescopic rod 9 includes an inner tube 91 and an outer tube 92. The lower end of the inner tube 91 is fixedly connected to the bottom wall of the groove 61, and the upper end of the outer tube 92 is fixedly connected to the bottom of the slider 4. The outer tube 92 is slidably sleeved on the outside of the inner tube 91 along the longitudinal direction. When the slider 4 moves relative to the clamping seat 6, the outer tube 92 slides relative to the inner tube 91.

[0027] Both the upper surface of the support base 5 and the lower surface of the clamping base 6 are provided with V-grooves 51. The V-grooves 51 can adapt to the clamping needs of oil pipes of different sizes and have wide versatility.

[0028] In this embodiment, the drive assembly 8 includes a lead screw 81, which is rotatably mounted on the top plate 2. The lower end of the lead screw 81 extends into the fixed sleeve 3. The slider 4 is slidably disposed within the fixed sleeve 3. The lead screw 81 and the slider 4 are threadedly connected. The inner cavity of the fixed sleeve 3 is a square chamber. The slider 4 engages with the inner cavity of the fixed sleeve 3, thus the slider 4 can only slide longitudinally within the fixed sleeve 3 and cannot rotate relative to the fixed sleeve 3. In use, rotating the lead screw 81, due to the threaded engagement, drives the slider 4 to move, thereby causing the elastic element 7 to deform longitudinally. Furthermore, the upper end of the lead screw 81 is a smooth section, and a bearing (not shown) is installed between the smooth section and the top plate 2 to support the lead screw 81, improving installation stability and reducing friction between the lead screw 81 and the top plate 2.

[0029] Furthermore, in this embodiment, the drive assembly 8 also includes a drive gear 82, a driven gear 83, and a hand crank 84. The central shaft of the drive gear 82 is rotatably connected to the top plate 2, the center of the driven gear 83 is fixedly connected to the upper end of the lead screw 81, and the hand crank 84 is fixedly connected to the central shaft of the drive gear 82. In use, the user manually rotates the hand crank 84, causing the drive gear 82 to rotate, which in turn drives the driven gear 83 to rotate synchronously, further driving the lead screw 81 to rotate, and thus driving the slider 4 to move longitudinally.

[0030] In addition, the outer diameter of the driving gear 82 is larger than the outer diameter of the driven gear 83, so that when the driving gear 82 rotates, the driven gear 83 can obtain a higher speed, so that the slider 4 can move quickly.

[0031] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A buffer-type clamping fixture for oil pipe processing, characterized in that: The device includes a machine base, a top plate, a fixed sleeve, a slider, a support base, a clamping base, and an elastic element. The top plate is fixedly mounted above the machine base, and the fixed sleeve is fixedly connected to the top plate. The slider is slidably mounted on the fixed sleeve along the longitudinal direction. A drive assembly for driving the slider is mounted on the top plate. The support base is fixedly mounted on the machine base, and the clamping base is slidably disposed on the fixed sleeve along the longitudinal direction. The clamping base and the support base are arranged opposite to each other. The elastic element is longitudinally telescopically disposed between the slider and the clamping base. The upper end of the elastic element is fixedly connected to the slider, and the lower end of the elastic element is fixedly connected to the clamping base.

2. The buffer-type clamping fixture for tubing processing as described in claim 1, characterized in that: The upper end of the fixed sleeve is fixedly connected to the top plate. The upper surface of the clamping seat is provided with a groove. The clamping seat is sleeved on the outside of the fixed sleeve through the groove. The bottom of the fixed sleeve is longitudinally and movably inserted into the groove.

3. The buffer-type clamping fixture for tubing processing as described in claim 2, characterized in that: The bottom of the outer surface of the fixed sleeve extends outward to form a limiting edge, and a limiting ring is fixedly installed on the upper surface of the clamping seat. The upper surface of the limiting ring can abut against the upper surface of the limiting edge.

4. The buffer-type clamping fixture for tubing processing as described in claim 2, characterized in that: The elastic element is located in the groove, and the lower end of the elastic element is fixedly connected to the bottom wall of the groove. The elastic element is a spring, and a telescopic rod is provided between the slider and the clamping seat.

5. The buffer-type clamping fixture for tubing processing as described in claim 4, characterized in that: The telescopic rod includes an inner tube and an outer tube. The lower end of the inner tube is fixedly connected to the bottom wall of the groove, and the upper end of the outer tube is fixedly connected to the bottom of the slider. The outer tube is slidably sleeved on the outside of the inner tube along the longitudinal direction.

6. The buffer-type clamping fixture for tubing processing as described in claim 1, characterized in that: The upper surface of the support base and the lower surface of the clamping base are both provided with V-shaped grooves.

7. The buffer-type clamping fixture for tubing processing as described in claim 1, characterized in that: The drive assembly includes a lead screw rotatably mounted on a top plate, the lower end of the lead screw extending into a fixed sleeve, and a slider slidably disposed within the fixed sleeve. The lead screw and the slider are threadedly connected.

8. The buffer-type clamping fixture for tubing processing as described in claim 7, characterized in that: The drive assembly preferably includes a drive gear, a driven gear, and a hand crank. The drive gear is rotatably connected to the top plate, the driven gear is fixedly connected to the upper end of the lead screw, and the hand crank is fixedly connected to the drive gear.

9. The buffer-type clamping fixture for tubing processing as described in claim 8, characterized in that: The outer diameter of the driving gear is larger than the outer diameter of the driven gear.

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