A clamping tool for a metal process tube bending device

Abstract

This utility model discloses a clamping fixture for a metal process tube bending device, relating to the field of clamping fixture technology. It includes a mounting base, with an adaptation and adjustment component connected to the front of the mounting base. The adaptation and adjustment component is used to adjust the clamping position according to metal process tubes of different diameters. The adaptation and adjustment component includes a fixing block connected to the front of the mounting base. The fixing block has symmetrically arranged mounting grooves inside. A sliding block is installed at the bottom of the mounting groove, and a gripper is connected to the front of the sliding block. An electric actuator is connected to the top of the sliding block, and a second sliding block is connected to the top of the electric actuator. The second sliding block is installed inside the mounting groove, and a second gripper is connected to the front of the second sliding block, positioned above the first gripper. This utility model, by setting an adaptation and adjustment component on the front of the mounting base, solves the problem that existing clamping fixtures are difficult to adapt to metal process tubes of various diameters, resulting in significant limitations in their use.

Description

Technical Field

[0001] This utility model relates to the field of clamping fixture technology, specifically a clamping fixture for a metal process tube bending device. Background Technology

[0002] The clamping fixture used in the metal process tube bending device is used to firmly fix the process tube on the bending device by clamping and positioning during the bending process. It controls the position and angle of the process tube to prevent deviation, shaking or deformation during bending. At the same time, it helps to adapt the clamping to process tubes of different specifications, ensures bending accuracy and quality, improves the efficiency and stability of bending operations, reduces scrap rate, and ensures the smooth completion of metal process tube bending processing.

[0003] Patent document CN220611810U discloses a clamping fixture for a bending machine. This document mainly considers that in existing equipment, before the bending machine presses down, the angle is usually adjusted by the operator holding the material plate. The manual operation has a large error and cannot guarantee that the part of the material plate being processed is the preset part. Moreover, the material plate is mostly metal. Due to the rigidity of metal, the material plate is prone to displacement during the bending process due to the force, which affects the processing accuracy. It does not take into account the problem that the existing clamping fixture is difficult to adapt to metal process pipes of various diameters and has great limitations in use. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping fixture for a metal process tube bending device, so as to solve the problem mentioned in the background art that the existing clamping fixtures are difficult to adapt to metal process tubes of various diameters and have great limitations in use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clamping fixture for a metal process tube bending device, including a mounting base, wherein an adapter adjustment component is connected to the front side of the mounting base, and the adapter adjustment component is used to adjust the clamping position according to metal process tubes of different diameters.

[0006] The adapter adjustment component includes a fixing block connected to the front of the mounting base. The fixing block has symmetrically arranged mounting slots inside. A sliding block is installed at the bottom of the mounting slot, and a gripper is connected to the front of the sliding block.

[0007] The top of the sliding block one is connected to an electric actuator, the top of the electric actuator is connected to a sliding block two, and the sliding block two is installed inside the mounting groove.

[0008] Preferably, the front of the sliding block two is connected to the gripper two, and the gripper two is located above the gripper one.

[0009] Preferably, the gripping surface of the first gripper is provided with a first anti-slip protrusion, which is serrated.

[0010] Preferably, the clamping surface of the second gripper is provided with a second anti-slip protrusion, which is a hemispherical rubber protrusion;

[0011] The surfaces of the first and second anti-slip protrusions are coated with a wear-resistant coating.

[0012] Preferably, the wear-resistant coating is a ceramic coating, which is applied by a thermal spraying process.

[0013] Preferably, the pipe is clamped between the first gripper and the second gripper.

[0014] Preferably, the top of the mounting base is connected to a fixed end cap, and the bottom of the fixed end cap is provided with a sealing ring, which is embedded in the mounting groove. The sealing ring is used to prevent dust and debris from entering the mounting groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model achieves adaptive clamping of metal process tubes of different diameters by setting an adaptation adjustment component on the front of the mounting base. The symmetrically arranged mounting grooves inside the fixed block provide a stable sliding track for sliding block one and sliding block two. The extension and retraction of the electric push rod can control the distance between sliding block two and sliding block one. When the metal process tube is placed between clamp one and clamp two, the electric push rod automatically adjusts its stroke according to the tube diameter, so that clamp one and clamp two fit against the tube wall from below and above, respectively. This coordinated adjustment mechanism of double slider and double clamp, compared with the traditional single clamp structure, can adapt to metal process tubes of different diameters in a wider range. Compared with the prior art, it can improve the applicability of the clamping fixture to metal process tubes of different diameters. Therefore, it can solve the problem that the existing clamping fixture is difficult to adapt to metal process tubes of various diameters and has great limitations in use.

[0017] 2. This utility model improves both clamping stability and durability by setting a serrated first anti-slip protrusion on the clamping surface of the first gripper and a hemispherical rubber protrusion on the clamping surface of the second gripper, and coating both surfaces with a ceramic wear-resistant coating. The serrated first anti-slip protrusion can embed into the micro-pits on the surface of the metal process tube during clamping, forming a mechanical interlocking effect, effectively preventing the tube from sliding axially during bending. The hemispherical rubber protrusion increases the contact area with the tube through elastic deformation, while providing a buffering effect to avoid indentation on the tube surface. Compared with the prior art, it can improve the clamping stability and the service life of the grippers, thus solving the problems of existing clamping fixtures being unstable and prone to slippage, and the grippers being easily worn and requiring frequent replacement. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the top structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the mounting groove structure of this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the present invention.

[0023] In the diagram: 1. Mounting base; 2. Fixing block; 3. Mounting groove; 4. Sliding block one; 5. Grip clamp one; 6. Electric actuator; 7. Grip clamp two; 8. Sliding block two; 9. First anti-slip protrusion; 10. Second anti-slip protrusion; 11. Pipe; 12. Fixing end cap; 13. Sealing ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The present invention provides an embodiment of a clamping fixture for a metal process tube bending device, comprising a mounting base 1, wherein the front side of the mounting base 1 is connected to an adapter adjustment component, the adapter adjustment component being used to adjust the clamping position according to metal process tubes of different diameters.

[0027] The adapter adjustment component includes a fixing block 2 connected to the front of the mounting base 1. The fixing block 2 has symmetrically arranged mounting grooves 3 inside. A sliding block 4 is installed at the bottom of the mounting groove 3. A gripper 5 is connected to the front of the sliding block 4.

[0028] The top of the sliding block 4 is connected to the electric push rod 6, the top of the electric push rod 6 is connected to the sliding block 8, and the sliding block 8 is installed inside the mounting groove 3.

[0029] The front of the sliding block 2 8 is connected to the gripper 2 7, and the gripper 2 7 is located above the gripper 1 5.

[0030] The gripping surface of the gripper 5 is provided with a first anti-slip protrusion 9, which is serrated.

[0031] The clamping surface of the second gripper 7 is provided with a second anti-slip protrusion 10, which is a hemispherical rubber protrusion.

[0032] The surfaces of the first anti-slip protrusion 9 and the second anti-slip protrusion 10 are coated with a wear-resistant coating.

[0033] The wear-resistant coating is a ceramic coating, which is applied using a thermal spraying process.

[0034] The pipe 11 is held between the first clamp 5 and the second clamp 7.

[0035] Furthermore, the clamping fixture used in the metal process pipe bending device mainly consists of a mounting base 1 and an adapter adjustment component. The mounting base 1 serves as the basic support structure of the entire fixture. Its back side can be securely connected to the main frame of the bending device by bolts or welding, while its front side provides an installation interface for the adapter adjustment component. The core function of the adapter adjustment component is to automatically adjust the clamping position according to the metal process pipes of different diameters to ensure that the pipe remains stable during the bending process.

[0036] The fixing block 2 serves as the main body of the adapter adjustment component and is tightly connected to the front of the mounting base 1 by high-strength bolts. The mounting grooves 3 symmetrically opened inside the fixing block 2 adopt a T-shaped groove structure design. This design not only provides precise sliding guidance for sliding block 1 4 and sliding block 2 8, but also effectively prevents the slider from shifting laterally during the force process. The gripper 1 5 is vertically connected to the front of sliding block 1 4 by welding. Its clamping surface contacts the outer surface of the metal process tube, providing lower support for the tube.

[0037] The electric actuator 6 serves as the power source for adjustment. Its cylinder bottom is fixedly connected to the top of the sliding block 4 via a flange, while the top of the piston rod is hinged to the bottom of the sliding block 8 via a spherical bearing. This hinged connection allows the electric actuator 6 to deflect at a certain angle during movement, avoiding jamming caused by installation errors. The sliding block 8 cooperates with the mounting groove 3, and the gripper 7 is connected to the sliding block 8 from the front and is located directly above the gripper 5. When the piston rod of the electric actuator 6 extends or retracts, the sliding block 8 will move up and down along the mounting groove 3, thereby adjusting the distance between the gripper 5 and the gripper 7 to accommodate metal process pipes of different diameters.

[0038] The first anti-slip protrusion 9 with serrated teeth on the clamping surface of the gripper 5 has an obtuse triangular structure. The serrated structure can effectively embed into the microscopic unevenness of the metal pipe surface during clamping, forming a mechanical interlocking effect and preventing the pipe from sliding axially during bending. The second anti-slip protrusion 10 with hemispherical rubber bumps on the clamping surface of the gripper 7 is made of nitrile rubber with a Shore hardness of 60-70. The diameter of the hemisphere is 3-5 mm and the distance between adjacent protrusions is 5-8 mm. The elastic deformation characteristics of the rubber material allow the second anti-slip protrusion 10 to fully fit with the pipe surface, increasing the contact area and providing a cushioning effect to avoid indentation or scratches on the pipe surface.

[0039] The surfaces of the first anti-slip protrusion 9 and the second anti-slip protrusion 10 are both coated with a ceramic wear-resistant coating. The ceramic coating not only has excellent wear resistance, but also effectively resists the wear of the anti-slip protrusion by the oxide scale and impurity particles on the surface of the metal pipe, extending the service life of the gripper. In practical applications, the wear resistance of the gripper coated with the ceramic coating is 4 to 6 times higher than that of the uncoated gripper.

[0040] The pipe 11 is held between the first clamp 5 and the second clamp 7. When the metal process pipe is placed between them, the electric actuator 6 automatically adjusts its stroke according to the pipe diameter, so that the first clamp 5 and the second clamp 7 tightly hold the pipe from below and above, respectively. At this time, the first anti-slip protrusion 9 and the second anti-slip protrusion 10 work together to ensure that the pipe will not slide or rotate during the bending process, thus ensuring bending accuracy and quality.

[0041] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 One embodiment of this utility model is a clamping fixture for a metal process tube bending device. The top of the mounting base 1 is connected to a fixed end cap 12, and the bottom of the fixed end cap 12 is provided with a sealing ring 13. The sealing ring 13 is embedded in the mounting groove 3 and is used to prevent dust and debris from entering the mounting groove 3.

[0042] Furthermore, a fixed end cap 12 is connected to the top of the mounting base 1. The fixed end cap 12 is tightly connected to the mounting base 1 by bolts. A sealing ring 13 is provided at the bottom of the fixed end cap 12. The sealing ring 13 is made of oil-resistant rubber and has a rectangular cross-section. Its size matches the top opening of the mounting groove 3. The sealing ring 13 is embedded inside the mounting groove 3 to form a sealing barrier, which can effectively prevent dust, debris and cutting fluid from entering the mounting groove 3. This avoids these contaminants from causing wear or corrosion to moving parts such as sliding block 1 4, sliding block 2 8 and electric push rod 6, thereby ensuring the normal operation and service life of the adapter adjustment component.

[0043] Working principle: First, the mounting base 1 is firmly installed on the main frame of the metal process tube bending device, serving as the basic support for the entire clamping fixture. When it is necessary to clamp metal process tubes of different diameters, the adaptation adjustment component is activated. The mounting block 2 connected to the front of the mounting base 1 has symmetrically arranged mounting grooves 3 inside, which provide precise guidance for the subsequent sliding components. The sliding block 4 at the bottom of the mounting groove 3 is connected to the gripper 5. The electric push rod 6 at the top of the sliding block 4 starts to operate. The electric push rod 6 drives the sliding block 8 connected to the top to slide up and down in the mounting groove 3 through the extension and retraction of the piston rod. Since the front of the sliding block 8 is connected to the gripper 7, the distance between the gripper 5 and the gripper 7 can be flexibly adjusted to adapt to metal process tubes of different diameters.

[0044] During the clamping stage, the pipe 11 is placed between clamp 5 and clamp 7. The clamping surface of clamp 5 is provided with a serrated first anti-slip protrusion 9, and the clamping surface of clamp 7 is equipped with a hemispherical rubber protrusion second anti-slip protrusion 10. When clamp 5 and clamp 7 approach and clamp the pipe, the first anti-slip protrusion 9 is embedded in the micro-pits on the surface of the pipe to form a mechanical engagement, and the second anti-slip protrusion 10 relies on the elastic deformation of the rubber to tightly adhere to the surface of the pipe. The two work together to firmly fix the pipe from both the top and bottom directions, preventing it from sliding or rotating axially during bending.

[0045] Meanwhile, to ensure the long-term stable operation of the adapter adjustment components, the fixed end cover 12 on the top of the mounting base 1 plays a role. The sealing ring 13 at the bottom of the fixed end cover 12 is embedded in the mounting groove 3 to form a sealing barrier. Throughout the working process, the sealing ring 13 continuously isolates external dust, debris and processing debris, etc., to prevent these contaminants from entering the mounting groove 3 and to prevent them from causing wear or affecting the normal operation of components such as sliding block 1 4, sliding block 2 8 and electric push rod 6, ensuring that all moving parts are always in good working condition.

[0046] After the metal process tube is clamped and fixed, the bending device begins to bend the tube. Grippers 5 and 7 maintain a stable clamping force to ensure the positional accuracy of the tube during the bending process until the bending operation is completed. Then, the gap between the grippers is adjusted by the electric push rod 6 to release the tube and complete a complete processing cycle.

[0047] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A clamping fixture for a metal process tube bending device, comprising a mounting base (1), characterized in that: The mounting base (1) is connected to an adapter adjustment component on its front side. The adapter adjustment component is used to adjust the clamping position according to the metal process tubes of different diameters. The adapter adjustment component includes a fixing block (2) connected to the front of the mounting base (1), and a symmetrically arranged mounting groove (3) is provided inside the fixing block (2). A sliding block (4) is installed at the bottom of the mounting groove (3), and a gripper (5) is connected to the front of the sliding block (4). The top of the sliding block 1 (4) is connected to the electric push rod (6), the top of the electric push rod (6) is connected to the sliding block 2 (8), and the sliding block 2 (8) is installed inside the mounting groove (3).

2. The clamping fixture for a metal process tube bending device according to claim 1, characterized in that: The front of the sliding block 2 (8) is connected to the gripper 2 (7), and the gripper 2 (7) is located above the gripper 1 (5).

3. The clamping fixture for a metal process tube bending device according to claim 1, characterized in that: The gripping surface of the gripper (5) is provided with a first anti-slip protrusion (9), which is serrated.

4. The clamping fixture for a metal process tube bending device according to claim 2, characterized in that: The gripping surface of the second gripper (7) is provided with a second anti-slip protrusion (10), which is a hemispherical rubber protrusion. The surfaces of the first anti-slip protrusion (9) and the second anti-slip protrusion (10) are coated with a wear-resistant coating.

5. The clamping fixture for a metal process tube bending device according to claim 4, characterized in that: The wear-resistant coating is a ceramic coating, which is applied using a thermal spraying process.

6. The clamping fixture for a metal process tube bending device according to claim 2, characterized in that: The pipe (11) is held between the first gripper (5) and the second gripper (7).

7. The clamping fixture for a metal process tube bending device according to claim 1, characterized in that: The top of the mounting base (1) is connected to a fixed end cap (12), and a sealing ring (13) is provided at the bottom of the fixed end cap (12). The sealing ring (13) is embedded in the mounting groove (3) and is used to prevent dust and debris from entering the mounting groove (3).

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