Columnar metal machining clamping device

Abstract

The utility model relates to the technical field of machining, in particular to a columnar metal machining clamping device which comprises at least three table bodies, the table bodies are connected in a sliding mode through guide rods in the linear direction, table legs of the two table bodies located at the two ends are supported on the ground, and table legs of the table body located in the middle are supported on the ground through idler wheels. Each table body is provided with at least one cross clamping assembly, each cross clamping assembly is provided with a clamping space, and columnar metal can be clamped in the clamping spaces of the at least two cross clamping assemblies in a top-to-bottom pressing mode. According to the device, the clamping position can be flexibly adjusted according to the length of a columnar workpiece, the adaptability of the clamping device to workpieces with different length specifications is improved, the middle table body supported by the rolling wheels is more labor-saving during sliding adjustment, rapid deployment and movement are facilitated, the whole device is modularized in structure and convenient to expand, combine or disassemble and assemble, and the working efficiency is improved. And the machining requirements of multi-specification, small-batch and non-standard columnar workpieces are met.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a clamping device for processing columnar metal. Background Technology

[0002] Cylindrical metal workpieces (such as metal tubes and rods) are widely used in various fields such as machinery manufacturing, construction, transportation, and home assembly. In actual processing, these workpieces often require surface grinding and polishing to improve surface quality or meet subsequent processing requirements. During these processes, reliable clamping and fixing of the workpiece are necessary to ensure operational safety and processing accuracy.

[0003] Currently, common clamping devices on the market typically employ mechanical jaws, fixtures, or fixed bases. These devices mostly use pre-set, fixed clamping positions, making them only suitable for workpieces of standard length or specific dimensions. When machining short or excessively long cylindrical workpieces, the fixed structure often cannot adapt, leading to risks of insecure clamping, displacement, or even workpiece falling.

[0004] Especially in multi-specification, small-batch customized processing scenarios, the existing clamping methods are particularly inconvenient due to the wide variety of sizes of columnar metal workpieces.

[0005] Therefore, there is an urgent need to design a flexible, adjustable clamping position cylindrical metal workpiece clamping device to solve the problems of adaptability and ease of operation of existing technologies, and to improve the stability and efficiency of workpiece processing. Utility Model Content

[0006] The purpose of this invention is to solve the problems of existing clamping structures for grinding the ends of metal tubes, which are costly, complex, and require separate electrical control, making them inconvenient to use. Therefore, this invention proposes a columnar metal processing clamping device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A columnar metal processing clamping device includes at least three tables, which are slidably connected in a straight line via guide rods. The legs of the two tables at both ends are supported on the ground, and the legs of the table in the middle are supported on the ground via rollers. Each table is equipped with at least one cross clamping assembly, and each cross clamping assembly has a clamping space. The columnar metal can be clamped in the clamping space of at least two cross clamping assemblies by pressing from top to bottom.

[0009] The table body has through holes, and the guide rod slides through multiple through holes in the table body.

[0010] The table body is fixed to a linear bearing with a horizontally arranged axis on its side, and the guide rod slides through multiple linear bearings of the table body.

[0011] A locking bolt is provided between the table body and the guide rod to lock their positions.

[0012] The cross clamping assembly includes two clamping rods arranged crosswise. The two clamping rods are rotatably connected at their junction by a pin. The pin is fixed to the table body. The bottom ends of the two clamping rods are connected by a tension spring. The clamping space is located at the end of the two clamping rods away from the tension spring.

[0013] The clamping rod includes a main rod body, a second clamping rod part, and a first clamping rod part. The main rod bodies of the two clamping rods are rotatably connected by the pin. The second clamping rod part is fixedly connected to or integrally formed with the end of the main rod body away from the tension spring. The first clamping rod part is located at the end of the second clamping rod part away from the main rod body. The second clamping rod part and the first clamping rod part are arranged in a V shape. The end of the first clamping rod part away from the second clamping rod part is fixedly connected to or integrally formed with an outwardly folded inclined rod part. The clamping space is located between the two first clamping rod parts and the two second clamping rod parts.

[0014] The first clamping rod and the second clamping rod are adjustablely assembled via a locking bolt assembly, and the opening size of the first clamping rod and the second clamping rod can be adjusted via the locking bolt assembly.

[0015] The first clamping rod portion and the second clamping rod portion have extension plates extending along the length direction of the guide rod.

[0016] The present invention provides a columnar metal processing clamping device with the following advantages: the table body of the device is slidably connected along the guide rod, and the clamping position can be flexibly adjusted according to the length of the columnar workpiece, which improves the adaptability of the clamping device to workpieces of different lengths and specifications. The middle table body supported by rollers is more labor-saving when sliding and adjusting, and is easy to deploy and move quickly. The overall device has a modular structure, which is easy to expand, combine or disassemble, and is suitable for the processing needs of multi-specification, small batch and non-standard columnar workpieces. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 A schematic diagram of the linear bearing connection structure of the table body of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the cross-clamping component of this utility model;

[0020] Figure 4 This is a schematic diagram of the main structure of the cross clamping component of this utility model.

[0021] In the diagram: 1. Table body; 2. Roller; 3. Cross clamping assembly; 4. Guide rod; 5. Clamping rod; 6. Main rod body; 7. Locking bolt assembly; 8. First clamping rod; 9. Inclined rod; 10. Tension spring; 11. Pin; 12. Clamping space; 13. Second clamping rod; 14. Linear bearing; 15. Locking bolt; 16. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A columnar metal processing clamping device includes at least three table bodies 1. The table bodies 1 are slidably connected in a straight line by guide rods 4. The legs of the two table bodies 1 located at both ends are supported on the ground, and the legs of the table body 1 located in the middle are supported on the ground by rollers 2. Each table body 1 is equipped with at least one cross clamping component 3. Each cross clamping component 3 has a clamping space 12. The columnar metal can be clamped in the clamping space 12 of at least two cross clamping components 3 by pressing from top to bottom.

[0024] Multiple tables are slidably connected via guide rods to form a clamping platform whose length can be adjusted according to actual needs. The tables at both ends are directly supported on the ground, providing overall structural stability; the middle table is supported by rollers, allowing for some mobility and facilitating flexible adjustment of the intermediate clamping position according to the length of the cylindrical metal workpiece. Each table is equipped with a cross-clamping assembly, each with clamping space. The cylindrical metal workpiece can be clamped in the clamping space of at least two cross-clamping assemblies by pressing it from top to bottom, for positioning and fixing the workpiece. After the cylindrical metal workpiece is placed between multiple cross-clamping assemblies, it can be pressed down manually or mechanically from top to bottom to press the workpiece into multiple clamping spaces.

[0025] The table of this device is slidably connected along the guide rod, and the clamping position can be flexibly adjusted according to the length of the columnar workpiece, which improves the adaptability of the clamping device to workpieces of different lengths and specifications. The central table supported by rollers is more labor-saving when sliding and adjusting, and is easy to deploy and move quickly. The overall device has a modular structure, which is easy to expand, combine or disassemble, and is suitable for the processing needs of multi-specification, small batch and non-standard columnar workpieces.

[0026] As a sliding connection method, the table body 1 has through holes 16, and the guide rod 4 slides through multiple through holes 16 of the table body 1.

[0027] As another sliding connection method, a linear bearing 14 with a horizontally arranged axis is fixed to the side of the table body 1. The guide rod 4 slides through multiple linear bearings 14 of the table body 1. The linear bearing 14 can reduce the friction between itself and the guide rod.

[0028] A locking bolt 15 is provided between the table body 1 and the guide rod 4 to lock their positions. According to the working conditions, the positions between the table body 1 and the guide rod 4 can be fixed by the locking bolt 15.

[0029] As one embodiment of the cross clamping assembly 3, the cross clamping assembly 3 includes two clamping rods 5 arranged crosswise. The two clamping rods 5 are rotatably connected at their junction by a pin 11. The pin 11 is fixed to the table body 1. The bottom ends of the two clamping rods 5 are connected by a tension spring 10. The clamping space 12 is located at the end of the two clamping rods 5 away from the tension spring 10.

[0030] Two clamping rods are arranged in a crossed configuration and connected by a pin at the intersection. The pin is fixed to the table, allowing the clamping rods to open and close around the pin. The bottom end of the clamping rods is connected by a tension spring, allowing them to close naturally when no external force is applied, creating a clamping space. In use, when a cylindrical metal workpiece is pressed into the clamping space from top to bottom, the workpiece pushes the two clamping rods outward. After the workpiece is fully inside the clamping space, the clamping rods spring back and clamp tightly, thus securing the workpiece. The clamping process is fast and can accommodate cylindrical workpieces of different diameters, better meeting the needs of workers for polishing and grinding workpieces.

[0031] The clamping rod 5 includes a main rod body 6, a second clamping rod 13, and a first clamping rod 8. The main rod bodies 6 of the two clamping rods 5 are rotatably connected by a pin 11. The second clamping rod 13 is fixed to or integrally formed with the end of the main rod body 6 away from the tension spring 10. The first clamping rod 8 is located at the end of the second clamping rod 13 away from the main rod body 6. The second clamping rod 13 and the first clamping rod 8 are arranged in a V-shape. The end of the first clamping rod 8 away from the second clamping rod 13 is fixed to or integrally formed with an outwardly folded inclined rod 9. The clamping space 12 is located between the two first clamping rods 8 and the two second clamping rods 13.

[0032] The main body of each of the two clamping rods is connected to the table body via a pin, acting as a fulcrum and allowing the entire clamping rod assembly to rotate around this point. The second clamping rod is located at the end furthest from the spring and is fixedly connected to or integrally formed with the main body, providing a basic extension structure for clamping. The first clamping rod connects to the end of the second clamping rod, forming a further extension. The two are arranged in a V-shape, which helps to form a stable clamping geometry. The end of the first clamping rod has an outwardly extending inclined rod. This outward-facing structure makes it easier to guide the workpiece into the clamping space from top to bottom, preventing jamming. After clamping, it provides a wrapping support, preventing lateral slippage of the workpiece. The entire clamping space is located between the two first and second clamping rods, structurally forming a conical or grooved area, which can better accommodate and position cylindrical workpieces.

[0033] The first clamping rod part 8 and the second clamping rod part 13 can be adjusted and assembled by the locking bolt assembly 7, and the opening size of the first clamping rod part 8 and the second clamping rod part 13 can be adjusted by the locking bolt assembly 7; the first clamping rod part 8 and the second clamping rod part 13 have extension plates extending along the length direction of the guide rod 4.

[0034] This structure achieves flexible adjustment of the clamping opening angle by setting a locking bolt assembly between the first and second clamping rods. In use, the locking bolt assembly can be loosened according to the diameter of the cylindrical metal workpiece, changing the included angle between the two clamping rods, thereby adjusting the opening size of the V-shaped structure. This better accommodates workpieces with large diameter differences, improving adaptability. Both the first and second clamping rods are equipped with extension plates extending along the length of the guide rod. This design significantly increases the contact area with the metal workpiece. During clamping, the extension plates provide a larger contact surface, which not only helps to distribute clamping pressure and reduce the risk of workpiece surface damage, but also improves clamping stability and anti-slip capability.

[0035] When using this device, firstly, adjust the distance between the tables along the guide rod according to the length of the cylindrical metal workpiece to be processed. This ensures that multiple cross-clamping components are distributed in appropriate positions on the workpiece, guaranteeing that the clamping points cover key parts of the workpiece for stability. After adjustment, fix the table positions on the guide rod using locking bolts. Then, press the cylindrical metal workpiece vertically downwards into the clamping space of the multiple cross-clamping components. During the workpiece pressing process, the clamping rods open around the pins due to compression. After the workpiece enters the clamping position, the clamping rods automatically spring back under the action of tension springs, clamping the workpiece. Finally, after confirming that the workpiece has been reliably fixed by the multiple cross-clamping components, subsequent grinding, polishing, or other processing operations can begin.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylindrical metal working clamp device characterized by comprising: It includes at least three table bodies (1), and the table bodies (1) are slidably connected in a straight line by guide rods (4). The legs of the two table bodies (1) at both ends are supported on the ground, and the legs of the table body (1) in the middle are supported on the ground by rollers (2). Each table body (1) is equipped with at least one cross clamping assembly (3), and each cross clamping assembly (3) has a clamping space (12). The columnar metal can be clamped in the clamping space (12) of at least two cross clamping assemblies (3) by pressing from top to bottom.

2. The columnar metal processing clamping device according to claim 1, characterized in that, The table body (1) has a through hole (16), and the guide rod (4) slides through multiple through holes (16) of the table body (1).

3. The columnar metal processing clamping device according to claim 1, characterized in that, The table body (1) is fixed to a linear bearing (14) with its axis horizontally arranged on the side, and the guide rod (4) slides through the linear bearings (14) of the table body (1).

4. The columnar metal processing clamping device according to claim 1, characterized in that, A locking bolt (15) is provided between the table body (1) and the guide rod (4) to lock their positions.

5. A columnar metal processing clamping device according to any one of claims 1-4, characterized in that, The cross clamping assembly (3) includes two cross-arranged clamping rods (5). The two clamping rods (5) are rotatably connected at their junction by a pin (11). The pin (11) is fixed to the table body (1). The bottom ends of the two clamping rods (5) are connected by a tension spring (10). The clamping space (12) is located at the end of the two clamping rods (5) away from the tension spring (10).

6. The columnar metal processing clamping device according to claim 5, characterized in that, The clamping rod (5) includes a main rod body (6), a second clamping rod (13), and a first clamping rod (8). The main rod bodies (6) of the two clamping rods (5) are rotatably connected by the pin (11). The second clamping rod (13) is fixedly connected to or integrally formed with the end of the main rod body (6) away from the tension spring (10). The first clamping rod (8) is located at the end of the second clamping rod (13) away from the main rod body (6). The second clamping rod (13) and the first clamping rod (8) are arranged in a V-shape. The end of the first clamping rod (8) away from the second clamping rod (13) is fixedly connected to or integrally formed with an outwardly folded inclined rod (9). The clamping space (12) is located between the two first clamping rods (8) and the two second clamping rods (13).

7. A columnar metal processing clamping device according to claim 6, characterized in that, The first clamping rod (8) and the second clamping rod (13) are adjustablely assembled by a locking bolt assembly (7), and the opening size of the first clamping rod (8) and the second clamping rod (13) can be adjusted by the locking bolt assembly (7).

8. A columnar metal processing clamping device according to claim 6, characterized in that, The first clamping rod portion (8) and the second clamping rod portion (13) have extension plates extending along the length direction of the guide rod (4).

Images