Clamping device

Abstract

The embodiment of the utility model provides a clamping device, and relates to the technical field of workpiece clamping structures. The clamping device comprises a mounting base, a deformable block, a driving part and a pressing block, the deformable block is arranged on the mounting base and used for being arranged on a workpiece to be machined in a sleeving mode, and the inner wall of the workpiece to be machined makes contact with the deformable block; the driving piece is connected with the mounting seat; the lower pressing block is in transmission connection with the driving piece, and the driving piece can drive the lower pressing block to extrude the deformable block so that the deformable block can tightly support the workpiece to be machined. The deformation block is arranged, the workpiece to be machined is arranged on the deformation block in a sleeving mode, the driving piece drives the pressing block to extrude the deformation block, and the deformation block can deform so as to tightly support the workpiece to be machined. And the lower pressing block is not in contact with the to-be-machined workpiece, so that the surface of the to-be-machined workpiece is prevented from being crushed. And the workpiece is tightly supported through deformation of the deformable block, so that the workpiece to be machined is prevented from being seriously deformed due to excessive compression. In addition, the clamping device can rapidly support the workpiece, and the pressing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of workpiece clamping structures, and more specifically, to a clamping device. Background Art

[0002] A pressing tooling fixture refers to all equipment used to apply an external force to a part during the mechanical assembly process to enable the part to obtain correct positioning. These equipment ensure the correct position of the part during the assembly process by means of clamping, pressing, tensioning, and jacking (or spreading). Pressing tooling fixtures are indispensable tools in the mechanical assembly process. They ensure the correct position of the part by applying an external force, thereby improving the assembly quality and efficiency.

[0003] However, when the current clamping tooling presses a workpiece, it is easy to cause serious deformation or surface damage to the pressed position of the workpiece, the workpiece is not properly supported, and most of the clamping methods are manual, resulting in a long clamping time and low efficiency. Summary of the Utility Model

[0004] The utility model provides a clamping device which can quickly tighten a workpiece, prevent damage to the workpiece, reduce the clamping time, and improve the efficiency.

[0005] The embodiments of the utility model can be implemented as follows:

[0006] The embodiments of the utility model provide a clamping device, which includes:

[0007] A mounting seat;

[0008] A deformable block, which is arranged on the mounting seat and is used for sleeving a workpiece to be processed, and the inner wall of the workpiece to be processed is in contact with the deformable block;

[0009] A driving member, which is connected to the mounting seat;

[0010] A pressing block, which is in transmission connection with the driving member, and the driving member can drive the pressing block to squeeze the deformable block so that the deformable block tightens the workpiece to be processed.

[0011] In an optional embodiment, the pressing block includes a pressing top block and a pressing sliding block. The pressing top block is connected to the driving member. The pressing sliding block is located between the pressing top block and the deformable block, and the pressing sliding block is in sliding fit with the driving member. The driving member can drive the pressing top block to move to drive the pressing sliding block to squeeze the deformable block so that the deformable block tightens the workpiece to be processed.

[0012] In an alternative embodiment, the clamping device further includes a positioning component, the positioning component is connected to the mounting base, the deformable block is connected to the positioning component, and the positioning component is used to limit the deformable block.

[0013] In an alternative embodiment, the positioning component includes a positioning block and a positioning post. The positioning block is connected to the mounting base, and the deformable block is sleeved on the positioning block. The positioning block is provided with a mounting hole along the extrusion direction, the positioning post is installed in the mounting hole, and the positioning post is connected to the pressing block.

[0014] In an alternative embodiment, the positioning block includes a connecting seat and a limiting block. The connecting seat is connected to the limiting block, the connecting seat is connected to the mounting base, and the deformable block is sleeved on the limiting block. The limiting block is provided with a mounting hole along the extrusion direction.

[0015] In an alternative embodiment, the shape of the positioning block is "T" shaped.

[0016] In an alternative embodiment, the mounting base includes a main fixing plate and a base vertical plate. The main fixing plate is perpendicularly connected to the base vertical plate. The main fixing plate is provided with a mounting groove, and the positioning component is arranged in the mounting groove. The main fixing plate is connected to the driving member.

[0017] In an alternative embodiment, the main fixing plate and the base vertical plate are detachably connected.

[0018] In an alternative embodiment, the driving member is a cylinder. The cylinder includes a cylinder body and a cylinder pull rod. One end of the cylinder pull rod is movably connected to the cylinder body, and the other end of the cylinder pull rod is connected to the pressing block. The cylinder body can be used to drive the cylinder pull rod to drive the pressing block to extrude the deformable block, so that the deformable block tightens the workpiece to be processed.

[0019] In an alternative embodiment, the deformable block is made of polyurethane rubber.

[0020] The beneficial effects of the clamping device according to the embodiment of the present invention include:

[0021] The clamping device includes a mounting base, a deformable block, a driving member, and a pressing block. The deformable block is arranged on the mounting base and is used to sleeved the workpiece to be machined, and the inner wall of the workpiece to be machined contacts the deformable block; the driving member is connected to the mounting base; the pressing block is in transmission connection with the driving member, and the driving member can drive the pressing block to squeeze the deformable block so that the deformable block tightly holds the workpiece to be machined. By providing the deformable block, the workpiece to be machined is sleeved on the deformable block, and the driving member drives the pressing block to squeeze the deformable block, so that the deformable block can be deformed to tightly hold the workpiece to be machined. The pressing block does not contact the workpiece to be machined and will not cause damage to the surface of the workpiece to be machined. And by the deformation of the deformable block to tightly hold the workpiece, the workpiece to be machined will not be severely deformed due to excessive pressing, which affects the quality of the workpiece. In addition, the clamping device can quickly tighten the workpiece, improving the pressing efficiency and thus the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic diagram of the clamping device provided in the embodiment of the present invention;

[0024] Figure 2 It is an exploded schematic diagram of the clamping device provided in the embodiment of the present invention.

[0025] Reference numerals: 1000 - clamping device; 100 - mounting base; 110 - main fixing plate; 111 - mounting groove; 120 - base vertical plate; 200 - deformable block; 300 - driving member; 310 - cylinder body; 320 - cylinder pull rod; 400 - pressing block; 410 - pressing top block; 420 - pressing slider; 500 - positioning component; 510 - positioning block; 511 - connecting seat; 512 - limiting block; 5121 - mounting hole; 520 - positioning post; 2000 - workpiece to be machined. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0028] It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0029] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0030] In addition, if terms such as "first", "second", etc. are used only for distinguishing descriptions, they cannot be understood as indicating or implying relative importance.

[0031] It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0032] A pressing tooling fixture refers to all equipment used to apply an external force to a part during the mechanical assembly process to enable the part to obtain correct positioning. These equipments ensure the correct position of the part during the assembly process through clamping, pressing, tensioning, jacking (or spreading), etc. Pressing tooling fixtures are indispensable tools in the mechanical assembly process. They ensure the correct position of the part by applying an external force, thereby improving the assembly quality and efficiency. However, when the current clamping tooling presses the workpiece, it is easy to cause serious deformation or surface damage to the pressed position of the workpiece, the workpiece is not properly supported, and most of the clamping methods are manual, with a long clamping time and low efficiency.

[0033] Based on this, please refer to Figure 1 and Figure 2 , the clamping device 1000 provided in the embodiments of the present invention can effectively improve the above-mentioned technical problems. The clamping device 1000 can quickly tighten the workpiece, prevent damage to the workpiece, reduce the clamping time, and improve the efficiency.

[0034] Figure 1 is a schematic diagram of the clamping device 1000 provided in the embodiments of the present invention; Figure 2The following is an exploded view of the clamping device 1000 provided in the embodiment of the present utility model. As Figure 1 and Figure 2 shown, the clamping device 1000 provided in this embodiment includes a mounting base 100, a deformable block 200, a driving member 300, and a pressing block 400. The deformable block 200 is disposed on the mounting base 100. The deformable block 200 is used to sleeved the workpiece to be processed 2000, and the inner wall of the workpiece to be processed 2000 contacts the deformable block 200. The driving member 300 is connected to the mounting base 100. The pressing block 400 is in transmission connection with the driving member 300. The driving member 300 can drive the pressing block 400 to squeeze the deformable block 200, so that the deformable block 200 tightens the workpiece to be processed 2000. When it is necessary to perform internal support clamping on the workpiece to be processed 2000, the workpiece to be processed 2000 is sleeved outside the deformable block, and the inner wall of the workpiece to be processed 2000 is in close contact with the deformable block 200. Then, the driving member 300 drives the pressing block 400 to move, squeezing the deformable block 200. The deformable block 200 deforms due to the extrusion, and the workpiece to be processed 2000 sleeved outside the deformable block 200 is tightened due to the deformation of the deformable block 200 for subsequent processing. When it is not necessary to tighten the workpiece, the driving member 300 drives the pressing block 400 to move away from the deformable block. The extrusion force of the pressing block 400 on the deformable block 200 gradually decreases, and the deformable block 200 slowly retracts. After the deformable block 200 is not extruded, it returns to its initial state.

[0035] By setting the deformable block, the workpiece to be processed 2000 is sleeved on the deformable block 200. The driving member 300 drives the pressing block 400 to squeeze the deformable block 200, which can cause the deformable block 200 to deform to tighten the workpiece to be processed 2000. The pressing block 400 does not contact the workpiece to be processed 2000, and will not cause damage to the surface of the workpiece to be processed 2000. And by the deformation of the deformable block 200 to tighten the workpiece, the workpiece to be processed 2000 will not be severely deformed due to excessive pressing, affecting the quality of the workpiece. In addition, the clamping device 1000 can quickly tighten the workpiece, improving the pressing efficiency and thus the production efficiency. Since the deformable block 200 is made of a soft material and the contact with the workpiece to be processed 2000 is a flexible contact, it can avoid the problem of damaging the workpiece to be processed 2000 to a certain extent during the clamping process.

[0036] The deformable block 200 in this embodiment is made of urethane rubber. Urethane rubber has the advantages of chemical corrosion resistance, oil resistance, high elasticity, high pressure load resistance, abrasion resistance, strong shock absorption, tear resistance, radiation resistance, high strength, high load-bearing capacity, and shock absorption and buffering. Urethane rubber can maintain high elasticity within a wide hardness range and has the characteristics of buffering, noise reduction, shock absorption, abrasion resistance, and high temperature resistance. It is suitable for the protective treatment of the surface of equipment in strong acid and strong alkali working environments, while improving the abrasion resistance of the equipment and reducing noise. Urethane rubber also has excellent tensile strength and tear resistance, and is easy to process such as cutting, grinding, and drilling. It is suitable for mechanical buffer materials, punching dies, counterblow pads, bending forming, and seals and toothed couplings used on industrial mechanical equipment. In addition, urethane rubber has excellent pressure resistance, shock resistance, oil resistance, acid and alkali resistance, and abrasion resistance, and has good aging resistance, long service life, and a wide variety of product specifications and varieties. Of course, the deformable block 200 can also be made of shape memory alloys such as nickel-titanium-based and copper-based, and elastic materials with recovery properties such as polyurethane, which is determined according to actual cost requirements and specific usage conditions and is not limited here.

[0037] Please continue to refer to Figure 2 , in order to simplify the operation, save energy and protect the environment, the driving member 300 provided in this embodiment is a cylinder, which includes a cylinder body 310 and a cylinder pull rod 320. One end of the cylinder pull rod 320 is movably connected to the cylinder body 310, and the other end of the cylinder pull rod 320 is connected to the pressing block 400; the cylinder body 310 can be used to drive the cylinder pull rod 320 to drive the pressing block 400 to squeeze the deformable block 200, so that the deformable block 200 clamps the workpiece 2000 to be processed. The cylinder is simple to use, easy to maintain, and has strong adaptability, and can quickly respond to various work requirements. The cylinder is safe and reliable in operation, fast in speed, has strong adaptability and operation flexibility, and can work safely and reliably in various environments, especially in harsh environments such as flammable, explosive, dusty, radioactive, strong vibration and impact. Moreover, the cylinder has a simple structure, and the used gas can be directly discharged without polluting the environment, and the maintenance cost is low, reducing the operating cost of the enterprise. The cylinder uses compressed air as the working medium, which is convenient to obtain, and the used gas can be directly discharged without polluting the environment, meeting the requirements of green manufacturing. In addition, the cylinder has lower energy consumption and lower operating cost, and has higher economy. Of course, the driving member 300 can also be a motor or the like, which is determined according to the actual situation and is not limited here.

[0038] To facilitate the installation of the cylinder, the clamping device 1000 in this embodiment further includes a heightening block, and a plurality of heightening blocks are provided between the cylinder body 310 and the mounting seat 100. Of course, other mounting structures can also be provided to realize the connection and fixation of the cylinder body 310 and the mounting seat 100, which is not limited here.

[0039] In this embodiment, the pressing block 400 includes a pressing top block 410 and a pressing slider 420. The pressing top block 410 is in transmission connection with the driving member 300. The pressing slider 420 is located between the pressing top block 410 and the deformable block 200, and the pressing slider 420 is in sliding fit with the driving member 300. The driving member 300 can drive the pressing top block 410 to move so as to drive the pressing slider 420 to squeeze the deformable block 200, so that the deformable block 200 clamps the workpiece 2000 to be processed tightly. Specifically, in this embodiment, the pressing top block 410 is fixedly connected to the top end of the cylinder pull rod 320 by screws, and the pressing slider 420 is sleeved on the cylinder pull rod 320. The pressing slider 420 can move along with the cylinder pull rod 320 when the driving member 300 drives the pressing top block 410 to move. Of course, the pressing block 400 can also be set in other structural forms, such as only including the pressing top block 410, which is not limited herein and is determined according to specific usage situations.

[0040] To facilitate the positioning of the deformable block 200 and prevent the deformable block 200 from moving relative to the mounting base 100 during the pressing process, please continue to refer to Figure 2 , in this embodiment, the clamping device 1000 further includes a positioning assembly 500. The positioning assembly 500 is connected to the mounting base 100, the deformable block 200 is connected to the positioning assembly 500, and the positioning assembly 500 is used to position the deformable block 200. Specifically, in this embodiment, the positioning assembly 500 includes a positioning block 510 and a positioning post 520. The positioning block 510 is connected to the mounting base 100, and the deformable block 200 is sleeved on the positioning block 510. The positioning block 510 is provided with a mounting hole 5121 along the extrusion direction, the positioning post 520 is installed in the mounting hole 5121, and the positioning post 520 is connected to the pressing block 400. In this embodiment, the mounting hole 5121 opened in the positioning block 510 is a through hole, and the positioning post 520 can pass through the positioning block 510 and be connected to the mounting base 100. Of course, the mounting hole 5121 opened in the positioning block 510 can also be designed as a blind hole as long as it can be used to install the positioning post 520. By providing the positioning post 520, the pressing block 400 can be positioned. The pressing slider 420 is sleeved on the positioning post 520. During the process of the driving member 300 driving the pressing top plate to move downward, the pressing slider 420 can move along the positioning post 520, which can prevent the pressing slider 420 from shifting left and right, playing a role of positioning and movement guiding.

[0041] To prevent the deformable block 200 from moving relative to the mounting base 100, please refer to Figure 2, in this embodiment, the positioning block 510 includes a connecting seat 511 and a limiting block 512. The connecting seat 511 is connected to the limiting block 512, the connecting seat 511 is connected to the mounting seat 100, and the deformable block 200 is sleeved on the limiting block 512; the limiting block 512 is provided with a mounting hole 5121 along the extrusion direction. Specifically, the shape of the positioning block 510 in this embodiment is "T" shaped. The positioning block 510 is designed to be "T" shaped, and the inverted "T" shaped positioning block 510 is connected to the mounting seat 100, that is, the horizontal large surface of the positioning block 510 is in contact connection with the mounting seat 100, and the vertical part is used for mounting the deformable block 200. Of course, the positioning block 510 can also be designed to be "I" shaped or other structural shapes, as long as it can limit the deformable block 200 to prevent it from moving relative to the mounting seat 100. The specific shape and structure of the positioning block 510 are not limited herein.

[0042] Please continue to refer to Figure 2 , in this embodiment, the mounting seat 100 includes a main fixing plate 110 and a base vertical plate 120. The main fixing plate 110 is vertically connected to the base vertical plate 120; the main fixing plate 110 is provided with a mounting groove 111, and the positioning assembly 500 is arranged in the mounting groove 111; the main fixing plate 110 is connected to the driving member 300. By providing the base vertical plate 120, the height of the mounting seat 100 can be increased. In order to facilitate adaptation to various processing equipment, the main fixing plate 110 and the base vertical plate 120 in this embodiment are detachably connected. Specifically, threaded fasteners such as bolts can be used for connection. Of course, the main fixing plate 110 and the base vertical plate 120 can also be connected by other detachable connection methods such as snap connection, which are not limited herein. By connecting the main fixing plate 110 and the base vertical plate 120 in a detachable connection manner, different height base vertical plates 120 can be replaced to adapt to the distance between different processing equipment and the workpiece 2000 to be processed for processing. Of course, the main fixing plate 110 and the base vertical plate 120 can also be connected by welding or other methods, which are not limited herein. In addition, the mounting seat 100 can also be designed into other structural shapes according to actual processing requirements, which are not limited herein.

[0043] According to a clamping device 1000 provided by this embodiment, its working principle is as follows:

[0044] When it is necessary to internally support and clamp the workpiece 2000 to be processed, the workpiece 2000 to be processed is sleeved outside the deformable block, and the inner wall of the workpiece 2000 to be processed is in close contact with the deformable block 200. Then the driving member 300 drives the lower pressing block 400 to move and squeeze the deformable block 200. The deformable block 200 expands and deforms due to the squeezing, and the workpiece 2000 to be processed sleeved outside the deformable block 200 is supported due to the deformation of the deformable block 200 for subsequent processing. When it is not necessary to support the workpiece, the driving member 300 drives the lower pressing block 400 to move away from the deformable block, and the squeezing force of the lower pressing block 400 on the deformable block 200 gradually decreases, and the deformable block 200 slowly retracts. After not being squeezed, the deformable block 200 returns to its initial state. The clamping device 1000 can quickly support the workpiece, prevent damage to the workpiece, reduce clamping time, and improve efficiency.

[0045] In summary, the clamping device 1000 includes a mounting seat 100, a deformable block 200, a driving member 300 and a pressing block 400. The deformable block 200 is arranged on the mounting seat 100. The deformable block 200 is used to sleeve the workpiece 2000 to be processed, and the inner wall of the workpiece 2000 to be processed is in contact with the deformable block 200. The driving member 300 is connected to the mounting seat 100. The pressing block 400 is in transmission connection with the driving member 300. The driving member 300 can drive the pressing block 400 to squeeze the deformable block 200, so that the deformable block 200 can hold the workpiece 2000 to be processed tightly. By setting the deformable block, the workpiece 2000 to be processed is sleeved on the deformable block 200. The driving member 300 drives the pressing block 400 to squeeze the deformable block 200, so that the deformable block 200 can be deformed to hold the workpiece 2000 to be processed tightly. The lower pressing block 400 does not contact the workpiece 2000 to be processed, and the surface of the workpiece 2000 to be processed will not be crushed. Moreover, the workpiece is supported by the deformation of the deformable block 200, and the workpiece 2000 to be processed will not be severely deformed due to excessive compression, which will affect the quality of the workpiece. In addition, the clamping device 1000 can quickly support the workpiece, improve the compression efficiency, and thus improve the production efficiency.

[0046] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping device, characterized in that, Comprising: Mounting base (100); Deformable block (200), the deformable block (200) is arranged on the mounting base (100), the deformable block (200) is used for sleeving the workpiece to be processed (2000), and the inner wall of the workpiece to be processed (2000) contacts the deformable block (200); Driver (300), the driver (300) is connected to the mounting base (100); Pressing block (400), the pressing block (400) is in transmission connection with the driver (300), and the driver (300) can drive the pressing block (400) to squeeze the deformable block (200) so that the deformable block (200) tightly holds the workpiece to be processed (2000).

2. The clamping device according to claim 1, characterized in that, The pressing block (400) includes a pressing top block (410) and a pressing slider (420), the pressing top block (410) is connected to the driver (300), the pressing slider (420) is located between the pressing top block (410) and the deformable block (200), and the pressing slider (420) is in sliding fit with the driver (300); the driver (300) can drive the pressing top block (410) to move to drive the pressing slider (420) to squeeze the deformable block (200) so that the deformable block (200) tightly holds the workpiece to be processed (2000).

3. The clamping device according to claim 1, characterized in that, The clamping device (1000) further includes a positioning assembly (500), the positioning assembly (500) is connected to the mounting base (100), the deformable block (200) is connected to the positioning assembly (500), and the positioning assembly (500) is used for limiting the deformable block (200).

4. The clamping device according to claim 3, characterized in that, The positioning assembly (500) includes a positioning block (510) and a positioning post (520), the positioning block (510) is connected to the mounting base (100), and the deformable block (200) is sleeved on the positioning block (510); the positioning block (510) is provided with a mounting hole (5121) along the extrusion direction, the positioning post (520) is installed in the mounting hole (5121), and the positioning post (520) is connected to the pressing block (400).

5. The clamping device according to claim 4, characterized in that, The positioning block (510) includes a connecting seat (511) and a limiting block (512), the connecting seat (511) is connected to the limiting block (512), the connecting seat (511) is connected to the mounting base (100), and the deformable block (200) is sleeved on the limiting block (512); the limiting block (512) is provided with a mounting hole (5121) along the extrusion direction.

6. The clamping device according to claim 5, characterized in that, The shape of the positioning block (510) is "T" shaped.

7. The clamping device according to claim 3, characterized in that, The mounting base (100) includes a main fixing plate (110) and a base vertical plate (120), the main fixing plate (110) is vertically connected to the base vertical plate (120); the main fixing plate (110) is provided with a mounting groove (111), and the positioning assembly (500) is arranged in the mounting groove (111); the main fixing plate (110) is connected to the driver (300).

8. The clamping device according to claim 7, wherein, The main fixing plate (110) is detachably connected to the base vertical plate (120).

9. The clamping device according to claim 1, characterized in that, The driving member (300) is a cylinder, the cylinder includes a cylinder body (310) and a cylinder pull rod (320), one end of the cylinder pull rod (320) is movably connected to the cylinder body (310), and the other end of the cylinder pull rod (320) is connected to the pressing block (400); the cylinder body (310) can be used to drive the cylinder pull rod (320) to drive the pressing block (400) to extrude the deformable block (200), so that the deformable block (200) tightens the workpiece to be processed (2000).

10. The clamping device according to claim 1, characterized in that, The deformable block (200) is made of polyurethane rubber.

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