Clamp for wedge-shaped workpiece

Abstract

The utility model relates to the technical field of mechanical part machining, in particular to a wedge-shaped workpiece clamp which comprises a base, a supporting table, a clamping mechanism and a positioning supporting mechanism, and the clamping mechanism comprises a first clamping assembly and a second clamping assembly which are each provided with two clamping pieces; two first clamping pieces of the first clamping assembly are both installed on the base and located on the two sides of the gravity center concentration end of a workpiece correspondingly to clamp the workpiece. Two second clamping pieces of the second clamping assembly are both installed on the table top of the supporting table and located on the two sides of the non-gravity-center-concentration end of the workpiece correspondingly to clamp the workpiece. The positioning and supporting mechanism comprises a positioning and supporting air cylinder and a positioning and supporting block, the positioning and supporting air cylinder is arranged on the table top of the supporting table, and a piston rod of the positioning and supporting air cylinder is connected with the positioning and supporting block and abuts against the bottom of the non-gravity-center-concentration end of the workpiece. By means of the structure, the clamping stability of the clamp on the wedge-shaped workpiece is improved, and the problems that the wedge-shaped workpiece is prone to deviating towards the center-of-gravity concentration end in the machining process, and even the workpiece is loosened and broken are solved.

Description

Technical Field

[0001] This application relates to the field of machining, and in particular to a clamping device for a wedge-shaped workpiece. Background Technology

[0002] Fixtures play a crucial role in modern manufacturing, serving as key devices for fixing, positioning, clamping, or supporting workpieces and semi-finished products. Their applications are extremely wide-ranging, from automotive manufacturing to aerospace. With the continuous development of machining technology, fixture design is constantly innovating to adapt to increasingly complex and diverse machining needs. Especially in multi-axis CNC machining, the need to handle workpieces of various shapes and sizes places higher demands on the versatility, stability, and flexibility of fixtures, making them one of the core tools for improving machining quality and efficiency. Currently, to meet different machining needs, the industry typically employs the following conventional methods. For example, for machining simple workpieces, the fixture simply fixes the workpiece directly to the worktable using bolts; a further improvement is to equip it with a pressing mechanism and a supporting mechanism. The pressing mechanism typically includes an elastic element and a clamping plate; by adjusting the elastic element, the clamping plate presses against the workpiece, thereby fixing the workpiece; for situations requiring multi-angle machining, a rotating mechanism is also added to the fixture, allowing the workpiece to be adjusted at multiple angles during machining.

[0003] Even if the above methods can solve some of the machining problems of workpieces, in existing workpiece machining, there is a type of wedge-shaped workpiece with significant dimensional differences along its length. Due to the center of gravity being biased towards the larger end and the small contact area at the smaller end, the structure is unstable and prone to tipping over. Existing fixtures still have significant shortcomings when machining such unstable wedge-shaped workpieces, especially when the center of gravity of the two ends of the wedge-shaped workpiece is significantly different. Existing fixtures have difficulty ensuring the clamping stability of the workpiece, and during rotational machining, the workpiece is prone to shifting towards the end with the concentrated center of gravity, further increasing the risk of workpiece loosening or breakage. This problem becomes more prominent as the dimensional differences of the wedge-shaped workpiece become more obvious, seriously affecting machining accuracy and safety. Utility Model Content

[0004] In order to improve the clamping stability of the fixture for the wedge-shaped workpiece and avoid the wedge-shaped workpiece from easily shifting towards the center of gravity during the processing, or even causing the workpiece to loosen or break, this application provides a fixture for the wedge-shaped workpiece.

[0005] The clamping device for a wedge-shaped workpiece provided in this application adopts the following technical solution:

[0006] A clamp for a wedge-shaped workpiece includes a base for placing the workpiece, a support platform for supporting the workpiece, a clamping mechanism for holding the workpiece, and a positioning support mechanism. The support platform is mounted on the base, and the positioning support mechanism is mounted on the platform surface of the support platform. The clamping mechanism includes at least one first clamping component and a second clamping component. The first clamping component includes two first clamping members, both of which are mounted on the base and are respectively located on both sides of the non-center-of-gravity end of the workpiece, clamping the workpiece. The second clamping component includes two second clamping members, both of which are mounted on the platform surface of the support platform and are respectively located on both sides of the center-of-gravity end of the workpiece, clamping the workpiece. The positioning support mechanism includes at least one positioning support cylinder and a positioning support block. The positioning support cylinder is disposed on the platform surface of the support platform and located between the two second clamping members. The piston rod of the positioning support cylinder is connected to the positioning support block and abuts against the bottom of the center-of-gravity end of the workpiece. The piston rod of the positioning support cylinder passes through the platform surface of the support platform and slides with the support platform. By adopting the above technical solution, firstly, the combination of the base and support platform provides a stable foundation for placing the wedge-shaped workpiece. Because the center of gravity of the wedge-shaped workpiece is biased towards the larger end, and the contact surface at the smaller end is small, existing fixtures struggle to ensure its stability. In this solution, the two first clamping members of the first clamping assembly are located on both sides of the workpiece's center of gravity, effectively clamping the larger end and preventing it from tipping over due to the shift in the center of gravity. Simultaneously, the two second clamping members of the second clamping assembly are located on both sides of the workpiece's center of gravity, clamping the smaller end and further enhancing overall clamping stability. Furthermore, the design of the positioning support cylinder and positioning support block in the positioning support mechanism plays a crucial role. The positioning support cylinder pushes the positioning support block upwards via its piston rod, bringing it into contact with the bottom of the workpiece's center of gravity, thus compensating for the small contact surface at the smaller end and significantly improving the workpiece's resistance to shifting during processing. The sliding cooperation design between the piston rod of the positioning support cylinder and the support platform allows the positioning support block to be flexibly adjusted according to the specific dimensions of the workpiece, adapting to wedge-shaped workpieces of different specifications. In summary, this fixture not only effectively solves the problem of unstable clamping of wedge-shaped workpieces, but also maintains workpiece stability during multi-angle machining, thereby improving machining accuracy and safety. Preferably, the positioning support block is a frustum structure. By adopting the above technical solution, the positioning support block is designed as a frustum structure, which effectively increases the contact area with the bottom of the workpiece's center of gravity. Because the frustum structure gradually expands from top to bottom, its smaller top section can accurately align with the bottom center area of ​​the workpiece's center of gravity, while the larger bottom section can disperse pressure under stress, preventing excessive local pressure from damaging the workpiece surface. Furthermore, the inclined surface design of the frustum structure can guide the workpiece when it slightly shifts, allowing it to automatically reset, thereby improving the stability of the fixture for the wedge-shaped workpiece.This design not only ensures reliable fixation of the workpiece during processing but also improves the adaptability of the fixture and the processing accuracy. Preferably, there are two positioning support cylinders and two positioning support blocks, with each cylinder and block corresponding to the other. By adopting the above technical solution, two positioning support cylinders and two positioning support blocks are provided, and they are arranged in a one-to-one correspondence. This design can support the workpiece's center of gravity from multiple angles. Specifically, the two positioning support cylinders drive the corresponding positioning support blocks to move upwards, so that the two positioning support blocks simultaneously contact the bottom of the workpiece's center of gravity and form a stable support point. Since the center of gravity of the wedge-shaped workpiece is biased towards the larger end, the smaller end has a smaller contact surface and is prone to tipping over. The two positioning support blocks can effectively disperse the pressure at the smaller end, avoiding workpiece tilting or sliding due to uneven force at a single point. At the same time, the combined use of the two positioning support blocks can also enhance the positioning accuracy of the workpiece, ensuring that the workpiece remains stable during processing, thereby improving processing accuracy and safety. Preferably, the positioning support cylinder is slidably mounted on the support table surface. By adopting the above technical solution, the positioning support cylinder can be slidably mounted on the support table surface. This design allows for flexible adjustment of the positioning support cylinder's position according to the specific size and shape of the workpiece. In practical applications, wedge-shaped workpieces, due to the significant difference in size between their two ends, may have a non-fixed force point at the center of gravity. By making the positioning support cylinder slidable, it can be precisely aligned with the bottom contact area of ​​the workpiece's center of gravity, ensuring stable contact between the positioning support block and the workpiece. Furthermore, this adjustability can adapt to wedge-shaped workpieces of different specifications, avoiding compatibility issues caused by a fixed cylinder position. Therefore, this design not only improves the versatility of the fixture but also enhances the clamping stability of wedge-shaped workpieces, effectively preventing workpiece displacement or tipping during processing, thereby improving processing accuracy and safety. Preferably, the positioning support cylinder is rotatably connected to the positioning support block. By adopting the above technical solution, the design of the rotatably connected positioning support cylinder and positioning support block can effectively adapt to the irregular shape of the bottom of the workpiece's center of gravity. In practical applications of fixtures, due to the small contact area and potentially uneven shape of the small end of a wedge-shaped workpiece, traditional fixed connection methods can easily lead to poor contact between the positioning support block and the bottom of the workpiece, thus affecting clamping stability. However, by setting the positioning support cylinder and the positioning support block as a rotatable connection, the positioning support block can be angled according to the specific shape of the workpiece bottom, ensuring that its contact surface tightly fits the bottom of the workpiece. This design not only improves the fixture's adaptability to wedge-shaped workpieces of different shapes but also reduces the risk of workpiece displacement or loosening due to poor contact during processing, thereby improving processing accuracy and safety. Furthermore, the rotatable connection simplifies the fixture's adjustment process and improves production efficiency. Preferably, the contact surface between the positioning support block and the bottom of the workpiece's center of gravity is provided with an anti-slip coating.By adopting the above technical solution, the friction between the positioning support block and the bottom of the workpiece's center of gravity is significantly improved after applying an anti-slip coating to their contact surfaces. This is because the anti-slip coating has a special surface structure and material properties, which can form a tighter interlocking effect on the contact surface, thereby effectively preventing the workpiece from sliding or shifting during processing. Specifically, when the positioning support cylinder pushes the positioning support block to abut against the bottom of the workpiece's center of gravity, the presence of the anti-slip coating allows the positioning support block to support the workpiece more stably, preventing the workpiece from loosening due to processing vibration or rotational torque. In addition, this design can reduce the relative movement between the workpiece and the positioning support block, further improving the clamping stability of the fixture for wedge-shaped workpieces and ensuring processing accuracy and safety. Preferably, the support platform is provided with an adjusting member, which adjusts the distance between the platform surface and the base. By adopting the above technical solution, the distance between the platform surface and the base can be flexibly adjusted after the support platform is equipped with the adjusting member. This design makes the fixture more adaptable to wedge-shaped workpieces of different sizes. Specifically, when the height of the wedge-shaped workpiece changes, the height of the support platform can be adjusted by the adjusting component, thereby allowing the center of gravity of the workpiece to better align with the positioning support mechanism. This height adjustability not only ensures the stability of the workpiece during clamping but also avoids problems such as insecure clamping or uneven force due to differences in workpiece size. Furthermore, by precisely adjusting the height of the support platform, the clamping angles of the first and second clamping components on both ends of the workpiece can be optimized, further improving clamping reliability and machining accuracy. Therefore, this design significantly improves the compatibility and clamping effect of the fixture on wedge-shaped workpieces of different specifications. Preferably, both first clamping components include a first clamping block and a first cylinder. The first cylinder is mounted on the base, and the first clamping block is fixedly connected to the piston rod of the first cylinder. The first cylinder drives the lifting and lowering of the first clamping block. When the first cylinder drives the first clamping block to descend, the first clamping block presses down on the non-center of gravity end of the workpiece. By adopting the above technical solution, the first clamping block is fixedly connected to the piston rod of the first cylinder, and the first cylinder drives the first clamping block to move up and down. When the first cylinder drives the first clamping block to descend, the first clamping block can precisely align with the non-center-of-gravity end of the workpiece and apply downward pressure to it. This design fully utilizes the non-center-of-gravity characteristic of the workpiece, effectively preventing the workpiece from tipping over or loosening during processing due to a shift in the center of gravity. Simultaneously, because the movement of the first clamping block is precisely controlled by the first cylinder, the downward pressure can be adjusted according to the specific size and shape of the workpiece, thus ensuring clamping stability. Furthermore, by firmly clamping the non-center-of-gravity end of the workpiece, vibration and displacement of the workpiece during multi-angle processing can be reduced, further improving processing accuracy and safety.Preferably, each of the two second clamping components includes a second clamping block and a second cylinder. The second cylinder is mounted on the support platform, and the second clamping block is fixedly connected to the piston rod of the second cylinder. The second cylinder drives the second clamping block to rise and fall. When the second cylinder drives the second clamping block to fall, the second clamping block presses down on the workpiece's center of gravity. By adopting the above technical solution, the second clamping block is fixedly connected to the piston rod of the second cylinder, and the second cylinder drives the second clamping block to rise and fall. When the second cylinder drives the second clamping block to fall, the second clamping block can accurately act on the position of the workpiece's center of gravity, applying downward pressure to the workpiece. This design fully utilizes the controllability and precision of the cylinder, ensuring a uniform distribution of clamping force. At the same time, since the second clamping block is specifically designed to press against the workpiece's center of gravity, it effectively compensates for the problem of small contact surface and easy tipping of the wedge-shaped workpiece. In actual processing, this method not only prevents the workpiece from shifting towards the center of gravity, but also significantly improves the overall stability of the workpiece, thereby reducing the risk of loosening or breakage and improving processing accuracy and safety.

[0007] In summary, this application includes at least one of the following beneficial technical effects:

[0008] 1. The first clamping assembly uses two first clamping members to clamp the workpiece from both sides of the non-center-of-gravity end, while the second clamping assembly uses two second clamping members to apply pressure to both sides of the center-of-gravity end of the workpiece, forming a multi-point force distribution. The positioning support cylinder in the positioning support mechanism drives the positioning support block to move upward and abut against the bottom of the center-of-gravity end of the workpiece. This design can effectively balance the unstable placement state of the wedge-shaped workpiece caused by the center-of-gravity shift, thereby significantly improving clamping stability.

[0009] 2. The coordinated design of the support platform and base provides a stable structural foundation for the entire fixture. Meanwhile, the synergistic effect of the first and second clamping components further enhances the fixture's adaptability to wedge-shaped workpieces. By rationally distributing clamping and supporting forces, high precision and safety are ensured during the machining process, meeting complex machining requirements. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a clamp for a wedge-shaped workpiece according to this application.

[0011] Figure 2 This is a schematic diagram of the structure of a wedge-shaped workpiece after the workpiece is installed in a fixture according to this application.

[0012] Explanation of reference numerals in the attached figures:

[0013] 1. Base; 2. Support platform; 3. Clamping mechanism; 4. Positioning support mechanism; 31. First clamping assembly; 32. Second clamping assembly; 41. Positioning support cylinder; 42. Positioning support block; 311. First clamping block; 312. First cylinder; 321. Second clamping block; 322. Second cylinder; A. Center of gravity concentration end; B. Non-center of gravity concentration end. Detailed Implementation

[0014] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0015] Example 1

[0016] This application provides a wedge-shaped workpiece clamp, comprising a base 1, a support platform 2, a clamping mechanism 3, and a positioning support mechanism 4. The support platform 2 is mounted on the base 1 to support the workpiece's center of gravity (A). The clamping mechanism 3 clamps the workpiece. The positioning support mechanism 4 is mounted on the platform of the support platform 2 and abuts against the bottom of the workpiece's center of gravity (A). The base 1 and the positioning support mechanism 4 work together to ensure stable placement of the workpiece, and the clamping mechanism 3 provides initial fixation. It is worth noting that the non-center of gravity (B) end of the workpiece refers to the end where the workpiece's mass distribution is relatively concentrated and the center of gravity is close to the workpiece, while the center of gravity (A) end refers to the end where the mass distribution is relatively small and the center of gravity is far away. Figure 2 As shown.

[0017] Specifically, the clamping mechanism 3 consists of at least one first clamping component 31 and a second clamping component 32. The first clamping component 31 is mounted on the base 1, while the second clamping component 32 is mounted on the support platform 2. This structural design enables multi-directional clamping of the workpiece. Both the first clamping component 31 and the second clamping component 32 include two clamping members. The two first clamping members of the first clamping component 31 are mounted on the base 1 and are respectively located on both sides of the non-center-of-gravity end B of the workpiece, clamping the workpiece. The two second clamping members of the second clamping component 32 are mounted on the platform of the support platform 2 and are respectively located on both sides of the center-of-gravity end A of the workpiece, clamping the workpiece.

[0018] The first clamping component consists of a first clamping block 311 and a first cylinder 312. The first cylinder 312 is fixedly mounted on the base 1, and the first clamping block 311 is fixedly connected to the piston rod of the first cylinder 312. The first cylinder 312 drives the lifting and lowering of the first clamping block 311. The first clamping block 311 can be made of metal materials, such as aluminum alloy or stainless steel, to ensure its strength and wear resistance. The shape of the first clamping block 311 can be adjusted according to the specific shape of the non-center-of-gravity end B of the workpiece, for example, it can be designed as an arc or a plane to ensure good contact with the workpiece surface. In addition, the first clamping block 311 can also be wrapped with rubber pads or soft materials to reduce damage to the workpiece surface. When the two first cylinders 312 drive the corresponding first clamping blocks 311 to descend, the two first clamping blocks 311 are located on both sides of the non-center-of-gravity end B of the workpiece and press down to abut against the workpiece, thereby achieving effective clamping of the workpiece.

[0019] The second clamping component consists of a second clamping block 321 and a second cylinder 322. The second cylinder 322 is fixedly mounted on the support platform 2, and the second clamping block 321 is fixedly connected to the piston rod of the second cylinder 322. The second cylinder 322 drives the lifting and lowering of the second clamping block 321. The second clamping block 321 can also be made of metal materials, such as aluminum alloy or stainless steel, to ensure its strength and wear resistance. The shape of the second clamping block 321 can be adjusted according to the specific shape of the workpiece's center of gravity concentration end A, for example, it can be designed as an arc or a plane to ensure good contact with the workpiece surface. In addition, the second clamping block 321 can also be wrapped with rubber pads or soft materials to reduce damage to the workpiece surface. When the second cylinder 322 drives the second clamping block 321 to descend, the two second clamping blocks 321 are located on both sides of the workpiece's center of gravity concentration end A and press down to abut against the workpiece, thereby achieving effective clamping of the workpiece.

[0020] Specifically, the positioning support mechanism 4 consists of a positioning support cylinder 41 and a positioning support block 42. The number of positioning support cylinders 41 and positioning support blocks 42 can be one, two, three, etc., but in this embodiment, one is preferred. The positioning support cylinder 41 is disposed on the table surface of the support platform 2 and located between the two second clamping members. The piston rod of the positioning support cylinder 41 is connected to the positioning support block 42, which abuts against the bottom of the workpiece's center of gravity concentration end A. The piston rod of the positioning support cylinder 41 passes through the table surface of the support platform 2 and slides in cooperation with the support platform 2. Because the piston rod of the positioning support cylinder 41 has a certain range of extension and retraction, when the vertical height of the workpiece's center of gravity concentration end A is different, the piston rod of this positioning support cylinder 41 can achieve the positioning support function for the workpiece within a certain range of extension and retraction, which improves the versatility of the fixture to a certain extent and also improves the accuracy of the positioning support block 42. This design can effectively prevent the wedge-shaped workpiece from shifting towards the non-center of gravity concentration end B during processing, thus improving clamping stability.

[0021] The positioning support block 42 can be designed as a cylinder, cube, irregular shape, frustum, etc. However, in this embodiment, a frustum structure is preferred. This shape can better adapt to the bottom contour of the workpiece's center of gravity concentration end A, improving clamping stability. Furthermore, the positioning support block 42 can be made of a material with excellent wear resistance, such as cemented carbide or ceramic, to extend its service life. Specifically, the contact surface between the positioning support block 42 and the bottom of the workpiece's center of gravity concentration end A can be coated with an anti-slip coating, such as a polyurethane coating or a rubber coating, to increase friction and prevent workpiece slippage. In this embodiment, the piston rod of the positioning support cylinder 41 is vertically installed, passing through the support platform 2 and slidingly engaging with it. This design allows the positioning support block 42 to be conveniently and quickly adjusted in the vertical direction according to the specific position of the workpiece, further improving clamping accuracy. The implementation principle of this embodiment is as follows: It includes a base 1, a support platform 2, a clamping mechanism 3, and a positioning support mechanism 4. The support platform 2 is installed on the base 1 to support the workpiece's center of gravity concentration end A. The positioning support mechanism 4 is installed on the surface of the support platform 2 and abuts against the bottom of the workpiece's center of gravity concentration end A. The two work together to place the workpiece stably. The clamping mechanism 3 is used to clamp the workpiece to achieve initial fixation. The clamping mechanism 3 consists of at least one first clamping component 31 and a second clamping component 32. The first clamping component 31 is installed on the base 1, and the second clamping component 32 is installed on the support platform 2, which can achieve multi-directional clamping. Both components contain two clamping parts, which are located on both sides of the workpiece's non-center of gravity concentration end B and center of gravity concentration end A, respectively, to clamp the workpiece. The first clamping part consists of a first clamping block 311 and a first cylinder 312. The second clamping part consists of a second clamping block 321 and a second cylinder 322. The clamping blocks can be made of metal and adjusted according to the shape of the workpiece. They can also be wrapped with soft materials to reduce damage to the workpiece. The positioning support mechanism 4 consists of two positioning support cylinders 41 and a positioning support block 42. The positioning support cylinders 41 are set on the table surface of the support platform 2 and located between the two second clamping components. The piston rod is connected to the positioning support block 42 and slides through the table surface of the support platform 2. The piston rod has a certain range of extension and retraction, which improves the versatility of the fixture and the accuracy of the positioning support block 42, prevents the workpiece from shifting during processing, and improves the clamping stability. The positioning support block 42 is preferably a frustum structure, and the material can be a wear-resistant material. The contact surface can be coated with an anti-slip coating. The vertical installation design of the piston rod of the positioning support cylinder 41 facilitates quick adjustment according to the workpiece position and further improves the clamping accuracy.

[0022] Example 2 differs from Example 1 in that: the support platform 2 is equipped with an adjusting component, which adjusts the distance between the platform surface of the support platform 2 and the base 1. The positioning support cylinder 41 is slidably mounted on the platform surface of the support platform 2 and its position can be flexibly adjusted. The positioning support cylinder 41 is rotatably connected to the positioning support block 42. In this example, the positioning support block 42 is an irregularly shaped structure. This example is mainly for processing wedge-shaped workpieces with high processing precision. The outer contour of the positioning support block 42 is specially designed according to the bottom contour of the center of gravity A of the wedge-shaped workpiece to ensure that the positioning support block 42 achieves high-precision positioning of the workpiece. This design allows the fixture to adapt to wedge-shaped workpieces of different heights, further improving its versatility; it allows the positioning support block 42 to be precisely adjusted according to the specific position of the workpiece, further improving clamping accuracy; it allows the positioning support block 42 to adaptively adjust according to changes in the angle of the workpiece, ensuring a good fit with the bottom of the workpiece; the adjusting component can be adjusted by a threaded adjustment method, changing the height of the support platform 2 by rotating a screw; or it can be adjusted by a hydraulic or pneumatic adjustment method, adjusting the height of the support platform 2 by controlling the extension and retraction of a hydraulic cylinder or pneumatic cylinder. Regardless of the method used, the design of the adjusting component must ensure that the adjustment process is smooth and reliable, avoiding impact or damage to the workpiece. (Other aspects are the same as in Embodiment 1) The implementation principle of this embodiment is as follows: For applications requiring high machining accuracy, the support platform 2 of the fixture is equipped with an adjusting component. The distance between the support platform 2 and the base 1 can be adjusted by the adjusting component to adapt to wedge-shaped workpieces of different heights, improving the versatility of the fixture. The adjusting component can be adjusted by a threaded adjustment (changing the height by rotating a screw) or a hydraulic / pneumatic adjustment (adjusting the height by controlling the extension and retraction of a hydraulic cylinder or pneumatic cylinder), and it must ensure that the adjustment is smooth and reliable, avoiding impact or damage to the workpiece. The positioning support cylinder 41 is slidably mounted on the support platform 2, allowing for flexible position adjustment. It is rotatably connected to the positioning support block 42. The positioning support block 42 is an irregularly shaped structure specifically designed according to the bottom contour of the center of gravity concentration end A of the wedge-shaped workpiece. This design allows the positioning support block 42 to be precisely adjusted according to the specific position of the workpiece and to adaptively adjust according to changes in the workpiece angle, ensuring a good fit with the bottom of the workpiece, further improving clamping accuracy, and ensuring high-precision positioning of the workpiece. (Other aspects are the same as in Example 1)

[0023] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping device for a wedge-shaped workpiece, characterized in that, It includes a base (1) for placing a workpiece, a support platform (2) for supporting the workpiece, a clamping mechanism (3) for holding the workpiece, and a positioning support mechanism (4). The support platform (2) is mounted on the base (1), and the positioning support mechanism (4) is mounted on the table surface of the support platform (2). The clamping mechanism (3) includes: at least one first clamping component (31) and a second clamping component (32); The first clamping assembly (31) includes two first clamping members, both of which are mounted on the base (1) and are respectively located on both sides of the non-center of gravity concentration end (B) of the workpiece to clamp the workpiece. The second clamping assembly (32) includes two second clamping members, both of which are mounted on the table surface of the support platform (2) and are located on both sides of the workpiece center of gravity concentration end (A) to clamp the workpiece. The positioning support mechanism (4) includes at least one positioning support cylinder (41) and a positioning support block (42). The positioning support cylinder (41) is disposed on the table surface of the support platform (2) and located between the two second clamping members. The piston rod of the positioning support cylinder (41) is connected to the positioning support block (42). The positioning support block (42) abuts against the bottom of the workpiece center of gravity concentration end (A). The piston rod of the positioning support cylinder (41) passes through the table surface of the support platform (2) and slides with the support platform (2).

2. The clamping fixture for a wedge-shaped workpiece according to claim 1, characterized in that, The positioning support block (42) has a frustum structure.

3. The clamping fixture for a wedge-shaped workpiece according to claim 1, characterized in that, The number of the positioning support cylinder (41) and the positioning support block (42) are both two, and the positioning support cylinder (41) and the positioning support block (42) are set in a one-to-one correspondence.

4. The clamping fixture for a wedge-shaped workpiece according to claim 1, characterized in that, The positioning support cylinder (41) is slidably mounted on the surface of the support platform (2).

5. A clamping fixture for a wedge-shaped workpiece according to claim 1, characterized in that, The positioning support cylinder (41) is rotatably connected to the positioning support block (42).

6. A clamping fixture for a wedge-shaped workpiece according to claim 1, characterized in that, The contact surface between the positioning support block (42) and the bottom of the workpiece center of gravity concentration end (A) is provided with an anti-slip coating.

7. A clamping device for a wedge-shaped workpiece according to claim 1, characterized in that, The support platform (2) is provided with an adjustment component, and the distance between the platform surface of the support platform (2) and the base (1) is adjusted by the adjustment component.

8. The clamping fixture for a wedge-shaped workpiece according to claim 1, characterized in that: Both of the first clamping members include a first clamping block (311) and a first cylinder (312). The first cylinder (312) is disposed on the base (1). The first clamping block (311) is fixedly connected to the piston rod of the first cylinder (312). The first cylinder (312) drives the first clamping block (311) to rise and fall. When the first cylinder (312) drives the first clamping block (311) to fall, the first clamping block (311) presses down on the non-center-of-gravity end (B) of the workpiece.

9. A clamping device for a wedge-shaped workpiece according to claim 1, characterized in that: Both of the second clamping components include a second clamping block (321) and a second cylinder (322). The second cylinder (322) is mounted on the support platform (2). The second clamping block (321) is fixedly connected to the piston rod of the second cylinder (322). The second cylinder (322) drives the second clamping block (321) to rise and fall. When the second cylinder (322) drives the second clamping block (321) to fall, the second clamping block (321) presses down on the workpiece's center of gravity concentration end (A).

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