Self-locking type conical surface positioning quick-change tool QPQ clamp

Abstract

The utility model relates to the technical field of clamps, in particular to a self-locking type conical surface positioning quick-change tool QPQ clamp which comprises a groove block, the upper end and the lower end of the groove block are both fixedly connected with connecting devices, and the right sides of the two connecting devices are fixedly connected with a fixing device. The connecting device comprises a connecting plate, a diagonal plane is arranged on the right side of the connecting plate, an adjusting groove is formed in the right portion of the upper end of the connecting plate, and the connecting plate is fixedly connected to the upper end of the groove block. According to the self-locking type conical surface positioning quick-change tool QPQ clamp, the fixing device and the connecting device are arranged, flexible adaptation is achieved, an up-down symmetrical structure is evenly stressed, efficient and accurate clamping of a workpiece is achieved, and the machining efficiency and precision are improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a self-locking conical surface positioning quick-change tooling fixture (QPQ fixture). Background Technology

[0002] Tooling fixtures are devices used to fix workpieces in the correct position for construction or inspection. Suitable tooling fixtures can improve processing efficiency, ensure processing accuracy, and reduce production costs. For workpieces with conical surface features, traditional planar positioning methods cannot achieve precise positioning, which can easily cause displacement and deviation of the workpiece during processing, affecting processing accuracy. Uneven clamping force can easily lead to local deformation of the workpiece, and the clamping force has poor stability, which may loosen during processing and reduce processing accuracy. Therefore, we have introduced a self-locking conical surface positioning quick-change tooling fixture, QPQ fixture. Utility Model Content

[0003] The main purpose of this utility model is to provide a self-locking conical surface positioning quick-change tooling fixture (QPQ fixture), which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A self-locking conical surface positioning quick-change tooling fixture (QPQ) includes a groove block, with connecting devices fixedly connected to the upper and lower ends of the groove block, and fixing devices fixedly connected to the right sides of the two connecting devices.

[0006] The connecting device includes a connecting plate with a beveled surface on its right side and an adjustment groove on the upper right side of the connecting plate. The connecting plate is fixedly connected to the upper end of the groove block.

[0007] Preferably, the fixing device includes a compression spring, a telescopic cylinder is sleeved inside the compression spring, a clamping plate is fixedly connected to one end of the telescopic cylinder, a plurality of rubber strips are fixedly connected to the upper end of the clamping plate, a connecting shaft is inserted through the middle of the front end of the clamping plate, and the other end of the compression spring is fixedly installed on the surface of the beveled surface.

[0008] Preferably, the rubber strips are evenly distributed along the upper surface of the clamping plate, and the spacing between adjacent rubber strips is 5mm.

[0009] The above solution ensures uniform friction between the clamping plate and the workpiece surface, preventing uneven force distribution that could cause workpiece tilting or slippage. A 5mm spacing ensures sufficient friction from the rubber strips to prevent slippage, while avoiding material waste and installation difficulties due to too small a spacing, or insufficient friction due to too large a spacing. Simultaneously, appropriate elastic cushioning prevents damage to the workpiece surface, ensuring stable workpiece clamping and machining quality.

[0010] Preferably, the inclination angle of the beveled surface is 30°.

[0011] The above solution ensures that when the compression spring is compressed, it effectively converts the elastic force into a clamping force on the workpiece, guaranteeing that the clamping force is of appropriate magnitude.

[0012] Preferably, the length of the extended portion of the compression spring does not exceed one-half of the free length of the compression spring.

[0013] By controlling the length of the extended portion to within half of the free length, the spring can provide a stable and uniform elastic force, enabling the clamping plate to stably clamp the workpiece and improve machining accuracy and quality.

[0014] Preferably, the two connecting devices have the same structure and are symmetrically distributed vertically.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, the 30° inclined cut surface on the connecting plate provides an installation surface and force guide for the fixing device, realizing self-locking conical positioning of the workpiece. It can accurately fit the conical surface of the workpiece, effectively avoiding displacement and deviation of the workpiece during processing. At the same time, the clamping plate is pressed tightly on the workpiece under the action of the compression spring, and the length of the extended part of the compression spring does not exceed half of the free length, ensuring that the spring plays a stable role within a reasonable working stroke, ensuring the uniformity and stability of the clamping force, avoiding local deformation of the workpiece and loosening during processing, significantly improving processing accuracy, and ensuring the processing quality of the workpiece.

[0017] 2. In this utility model, the connecting plate of the fixture is provided with an adjustment groove, which allows for fine adjustment of the fixture position. This enables it to adapt to workpieces of different sizes and shapes, enhancing the versatility of the fixture and reducing the number of fixture replacements. In addition, the symmetrically distributed connecting devices ensure uniform force distribution on the fixture. The overall structural design makes the fixture easy to operate, enabling quick clamping and disassembly of workpieces and realizing a quick-change function. At the same time, the rubber strips evenly distributed at 5mm intervals on the clamping plate increase the friction with the workpiece, preventing the workpiece from sliding and avoiding damage to the workpiece surface, thus ensuring the quality of the workpiece. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a self-locking conical surface positioning quick-change tooling QPQ fixture according to the present invention;

[0019] Figure 2 This is a partial structural diagram of a self-locking conical surface positioning quick-change tooling QPQ fixture according to the present invention;

[0020] Figure 3This is a schematic diagram of the fixing device structure of a self-locking conical surface positioning quick-change tooling QPQ fixture according to the present invention;

[0021] Figure 4 This is a detailed enlarged structural diagram of section A of the self-locking conical surface positioning quick-change tooling QPQ fixture of this utility model.

[0022] In the diagram: 1. Groove block; 2. Connecting device; 3. Fixing device; 21. Connecting plate; 22. Beveled surface; 23. Adjusting groove; 31. Compression spring; 32. Telescopic cylinder; 33. Clamping plate; 34. Connecting shaft; 35. Rubber strip. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] A self-locking conical surface positioning quick-change tooling fixture (QPQ) includes a groove block 1, with connecting devices 2 fixedly connected to the upper and lower ends of the groove block 1, and fixing devices 3 fixedly connected to the right sides of the two connecting devices 2.

[0028] The two connecting devices 2 have the same structure and are symmetrically distributed vertically.

[0029] In this embodiment, the connecting device 2 includes a connecting plate 21, with a beveled surface 22 on the right side of the connecting plate 21 and an adjustment groove 23 on the upper right side of the connecting plate 21. The connecting plate 21 is fixedly connected to the upper end of the groove block 1. The fixing device 3 includes a compression spring 31, with a telescopic cylinder 32 sleeved inside the compression spring 31. One end of the telescopic cylinder 32 is fixedly connected to a clamping plate 33, and several rubber strips 35 are fixedly connected to the upper end of the clamping plate 33. A connecting shaft 34 is inserted through the middle of the front end of the clamping plate 33. The other end of the compression spring 31 is fixedly installed on the surface of the beveled surface 22. The rubber strips 35 are evenly distributed along the upper surface of the clamping plate 33, with a spacing of 5 mm between adjacent rubber strips 35. The inclination angle of the beveled surface 22 is 30°, and the length of the extended part of the compression spring 31 does not exceed half of the free length of the compression spring 31.

[0030] Through the above scheme: In the connecting device 2, the 30° inclined chamfered surface 22 on the connecting plate 21 provides an installation surface and force guide for the fixing device 3. When the workpiece is placed, the clamping plate 33 is squeezed, pushing the telescopic cylinder 32 to compress the compression spring 31. The spring force makes the clamping plate 33 press tightly against the workpiece, and the length of the extended part of the compression spring 31 does not exceed half of the free length, ensuring that the spring plays a stable role within a reasonable working stroke. The rubber strips 35 evenly distributed at 5mm intervals on the clamping plate 33 increase the friction with the workpiece to prevent slippage and avoid damage. On the workpiece surface, the adjustment groove 23 on the connecting plate 21 allows for fine adjustment of the fixture position to adapt to different processing requirements. The symmetrically distributed connecting devices 2 ensure uniform force on the fixture. Thus, the fixture achieves self-locking conical surface positioning and rapid clamping of the workpiece. During operation, it improves processing efficiency and reduces workpiece clamping time. On the other hand, the precise positioning and stable clamping method improve processing accuracy. Meanwhile, the rubber strip 35 protects the workpiece surface, and the adjustment groove 23 enhances the applicability of the fixture, effectively reducing workpiece wear and expanding the application range of the fixture.

[0031] It should be noted that this utility model is a self-locking conical surface positioning quick-change tooling fixture (QPQ). When the workpiece to be processed is placed in a suitable position, the connecting device 2 plays a key role. The inclined angle of the beveled surface 22 on the connecting plate 21 is 30°, which provides an inclined mounting surface and force guide for the fixing device 3. The compression spring 31 is installed on the surface of the beveled surface 22. When the workpiece is placed, the clamping plate 33 is squeezed by the workpiece, which pushes the telescopic cylinder 32 to retract into the compression spring 31. The compression spring 31 is compressed and generates elastic force. The length of the extended part of the compression spring 31 does not exceed half of the free length, ensuring that the spring is in a reasonable working stroke. This elastic force is transmitted to the clamping plate 33 through the telescopic cylinder 32, so that the clamping plate 33 presses tightly on the workpiece. The rubber strip 35 fixed at the upper end of the clamping plate 33 is evenly distributed along the upper end surface of the clamping plate 33 with an adjacent spacing of 5mm, which increases the friction with the workpiece and prevents the workpiece from sliding. At the same time, the rubber strip 35 has a certain elasticity, which can avoid damaging the surface of the workpiece.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A self-locking conical surface positioning quick-change tooling fixture (QPQ), comprising a groove block (1), characterized in that: The upper and lower ends of the groove block (1) are fixedly connected to a connecting device (2), and a fixing device (3) is fixedly connected to the right side of the two connecting devices (2); The connecting device (2) includes a connecting plate (21), with a chamfered surface (22) on the right side of the connecting plate (21) and an adjustment groove (23) on the upper right side of the connecting plate (21). The connecting plate (21) is fixedly connected to the upper end of the groove block (1).

2. The self-locking conical surface positioning quick-change tooling fixture (QPQ) according to claim 1, characterized in that: The fixing device (3) includes a compression spring (31), a telescopic cylinder (32) is sleeved inside the compression spring (31), a clamping plate (33) is fixedly connected to one end of the telescopic cylinder (32), a number of rubber strips (35) are fixedly connected to the upper end of the clamping plate (33), a connecting shaft (34) is inserted through the middle of the front end of the clamping plate (33), and the other end of the compression spring (31) is fixedly installed on the surface of the oblique cut surface (22).

3. The self-locking conical surface positioning quick-change tooling fixture (QPQ) according to claim 2, characterized in that: The rubber strips (35) are evenly distributed along the upper surface of the clamp (33), and the distance between adjacent rubber strips (35) is 5mm.

4. The self-locking conical surface positioning quick-change tooling fixture (QPQ) according to claim 1, characterized in that: The inclination angle of the oblique cut surface (22) is 30°.

5. The self-locking conical surface positioning quick-change tooling fixture QPQ according to claim 2, characterized in that: The length of the extended portion of the compression spring (31) does not exceed one-half of the free length of the compression spring (31).

6. The self-locking conical surface positioning quick-change tooling fixture QPQ according to claim 1, characterized in that: The two connecting devices (2) have the same structure and are symmetrically distributed vertically.

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