Four-axis machining tooling
By designing a limiting component in the four-axis machining fixture, and utilizing the combination of the limiting groove, fiber rod, and return spring, the problem of unstable clamping force caused by loose bolts was solved, thus achieving the stability of the clamping plate and improving machining accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KAIJIELONG MASCH CO LTD
- Filing Date
- 2025-09-08
- Publication Date
- 2026-08-04
AI Technical Summary
In existing four-axis machining fixtures, bolts are prone to loosening during long-term use, which reduces the fixing force of the pressure plate and affects machining accuracy.
The design includes a limiting component, a limiting groove, a fiber rod, and a return spring. The elasticity of the return spring keeps the pressure plate stable before the bolt loosens, thus preventing the bolt from becoming loose.
It effectively prevents bolts from loosening, ensures consistent clamping force of the pressure plate, improves processing accuracy and ease of operation, and increases work efficiency.
Smart Images
Figure CN224587892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor processing technology, and in particular to a four-axis machining tooling. Background Technology
[0002] The four-axis machining fixture for compressors is mainly used for the precision machining of compressor parts. Its design ensures stability and accuracy during the machining process. The base plate is the basic support platform of the entire fixture, which is usually made of sturdy metal materials and can withstand the forces generated during the machining process. The working principle of the entire four-axis machining fixture is to ensure the precise positioning and stability of the workpiece during the machining process through the synergistic action of the base plate, pressure plate, circumferential limit rod and pressure plate limit plate.
[0003] In existing four-axis machining fixtures, the pressure plate is fixedly connected to the entire device by bolts. Although this design is common, it also has certain drawbacks. In particular, during long-term use, the bolts may loosen, leading to a decrease in firmness. The specific drawbacks are as follows: As the machining process proceeds, especially under high load and high vibration conditions, the bolts are easily subjected to periodic stress. This repeated stress will cause the friction between the bolt threads and the fixture or pressure plate to gradually decrease, resulting in loosening. After the bolts loosen, the fixing force of the pressure plate will be significantly reduced, which may cause the pressure plate to be unable to evenly press the workpiece, thereby affecting the machining accuracy. Utility Model Content
[0004] To overcome the shortcomings of the prior art, this utility model provides a four-axis machining fixture. The limiting component of the device is designed with a unique limiting groove and a fiber rod around the nut of the fixing bolt. Through the elastic action of the return spring, the pressure plate is automatically kept stable before the bolt loosens. This design can effectively prevent the bolt from loosening due to long-term periodic stress, thereby ensuring that the fixing force of the pressure plate remains consistent during the machining process.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a four-axis machining fixture, including a machining fixture base plate, a fixing bolt provided on the machining fixture base plate, the fixing bolt including a nut and a screw, a machining fixture pressure plate installed on the top of the machining fixture base plate by the fixing bolt, a limit component provided on the outer wall of the machining fixture pressure plate, the limit component limiting the nut of the fixing bolt, a circumferential limit rod provided between the machining fixture base plate and the machining fixture pressure plate, and a pressure plate limit rod also provided between the machining fixture base plate and the machining fixture pressure plate.
[0006] As a preferred technical solution of this utility model, the circumferential limiting rod is arranged on the front and rear sides of the machining fixture base plate, and the circumferential limiting rod is used to restrict the movement of the workpiece along the circumferential direction during the machining process.
[0007] As a preferred embodiment of this utility model, the pressure plate limiting rod is disposed on the left and right sides of the base plate of the processing fixture, and the pressure plate limiting rod is used to limit the movement range of the pressure plate of the processing fixture.
[0008] As a preferred technical solution of this utility model, the limiting component includes a groove formed on the inner wall of the processing tooling pressure plate, a slider slidably connected in the groove, a return spring set in the groove, a connecting plate fixed on the outer wall of the top of the slider, a pull ring set on the side wall of the connecting plate, a fiber rod fixed on the other side wall of the connecting plate, and a limiting groove formed on the side wall of the nut on the fixing bolt.
[0009] In a preferred embodiment of this utility model, one end of the reset spring is connected to the outer wall of the slider, and the other end of the reset spring is connected to the inner wall of the groove.
[0010] As a preferred embodiment of this utility model, the outer wall of the pull ring is provided with anti-slip texture, and the pull ring is shaped as a circular ring.
[0011] As a preferred embodiment of this utility model, the diameter of the fiber rod is set to be equal to the diameter of the limiting groove, and a rubber pad is provided on the inner wall of the fiber rod.
[0012] Compared with the prior art, the beneficial effects that this utility model can achieve are:
[0013] 1. Prevent bolts from loosening and ensure the stability of the pressure plate: The limiting component of this device is designed with a unique limiting groove and fiber rod around the nut of the fixing bolt. Through the elastic action of the return spring, the pressure plate is automatically kept stable before the bolt loosens. This design can effectively prevent the bolt from loosening due to long-term periodic stress, thereby ensuring that the fixing force of the pressure plate remains consistent during the processing.
[0014] 2. Simple operation and improved work efficiency: The design of the limit component allows users to pull the connecting plate in advance by pulling the pull ring before fixing the nut of the bolt, so as to easily fix the tooling pressure plate. The whole process is simple and efficient to operate through the cooperation of components such as slider and return spring, without too much manual adjustment, thereby improving work efficiency. Attached Figure Description
[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a top view schematic diagram of the structure of this utility model;
[0017] Figure 3This is a top view of the connection structure between the fixing bolt and the limiting component of this utility model;
[0018] Figure 4 For the present utility model Figure 1 A schematic diagram of the enlarged cross-sectional view of the structure at point A in the middle.
[0019] The components are labeled as follows: 1. Machining fixture base plate; 2. Machining fixture pressure plate; 3. Fixing bolt; 4. Limiting component; 41. Slide groove; 42. Slider; 43. Return spring; 44. Connecting plate; 45. Pull ring; 46. Limiting rod; 47. Limiting groove; 5. Circumferential limiting rod; 6. Pressure plate limiting rod. Detailed Implementation
[0020] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this utility model. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.
[0021] Example:
[0022] like Figure 1-4 As shown, a four-axis machining fixture includes a machining fixture base plate 1, a fixing bolt 3 on the machining fixture base plate 1, the fixing bolt 3 including a nut and a screw, a machining fixture pressure plate 2 installed on the top of the machining fixture base plate 1 through the fixing bolt 3, a limit component 4 on the outer wall of the machining fixture pressure plate 2, the limit component 4 limiting the nut of the fixing bolt 3, a circumferential limit rod 5 between the machining fixture base plate 1 and the machining fixture pressure plate 2, and a pressure plate limit rod 6 between the machining fixture base plate 1 and the machining fixture pressure plate 2.
[0023] The machining fixture pressure plate 2 is used to clamp the workpiece, ensuring that the workpiece will not move or vibrate during processing. The machining fixture pressure plate 2 can provide uniform pressure to prevent the workpiece from deforming or loosening. The circumferential limit rod 5 is set on the front and rear sides of the machining fixture base plate 1. The circumferential limit rod 5 is used to limit the movement of the workpiece in the circumferential direction during processing, preventing the workpiece from rotating or laterally displacing during processing, thereby ensuring processing accuracy. The circumferential limit rod 5 is fixed on the machining fixture base plate 1 through precise design. After the workpiece is installed, the circumferential limit rod 5 contacts the workpiece or is close to the edge of the workpiece, restricting the movement of the workpiece. This component ensures that in four-axis machining, the workpiece will not be processed inaccurately due to rotational errors.
[0024] The pressure plate limiting rod 6 is set on the left and right sides of the base plate 1 of the processing fixture. The pressure plate limiting rod 6 is used to limit the movement range of the pressure plate 2 of the processing fixture, to ensure that the pressure applied by the pressure plate 2 of the processing fixture is always uniform, and to prevent the workpiece from deforming due to excessive or insufficient pressure during the processing.
[0025] The limiting component 4 includes a slide groove 41 formed on the inner wall of the processing tooling pressure plate 2, a slider 42 slidably connected in the slide groove 41, a return spring 43 set in the slide groove 41, a connecting plate 44 fixed on the outer wall of the top of the slider 42, a pull ring 45 set on the side wall of the connecting plate 44, a fiber rod 46 fixed on the other side wall of the connecting plate 44, and a limiting groove 47 formed on the side wall of the nut on the fixing bolt 3;
[0026] Before installing the nut on the fixing bolt 3, pull the pull rings 45 at both ends outward, causing the pull rings 45 to move the connecting plate 44 outward. The connecting plate 44 slides outward in the slide groove 41 through the slider 42. During the sliding process, the return spring 43 is squeezed and deformed until the connecting plate 44 moves the fiber rod 46 outward to the outermost end. Then, the nut on the fixing bolt 3 can be turned to fix the tooling pressure plate 2. At this time, the pull rings 45 are loosened. The restoring force generated by the elasticity of the return spring 43 pushes the slider 42 to return to its original position, thereby driving the fiber rod 46 on the connecting plate 44 to return to its original position. Finally, the fiber rod 46 is inserted and engaged with the limiting groove 47 in the nut to form a limiting position.
[0027] It is worth noting that one end of the return spring 43 is connected to the outer wall of the slider 42, and the other end of the return spring 43 is connected to the inner wall of the slide groove 41. The function of the return spring 43 is to provide restoring force so that the slider 42 and the connecting plate 44 can automatically return to their original positions after the pull ring 45 is loosened. Through this design, the operation of the limit component 4 can be ensured to be smooth and the inaccurate limit can be avoided due to external force interference.
[0028] The outer wall of the pull ring 45 is provided with anti-slip texture. The anti-slip texture can increase the operator's grip on the pull ring and prevent the hand from slipping due to excessive pulling force or slippage during operation, thereby improving the safety and convenience of use. The pull ring 45 is designed in the shape of a ring, which is more ergonomic and easy for the fingers to grip, increasing the comfort and efficiency during operation.
[0029] The diameter of the fiber rod 46 is set to be equal to the diameter of the limiting groove 47. The inner wall of the fiber rod 46 is provided with a rubber pad. The fiber rod 46 and the limiting groove 47 are precisely matched to ensure that the engagement process is tight and stable. This helps to form a firm fixing effect when installing or loosening, thereby preventing the workpiece from moving.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] 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 preferred examples and are not intended to limit the 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 utility model as defined by the appended claims and their equivalents.
Claims
1. A four-axis machining tool comprising a machining tool base plate (1), characterized in that: The base plate (1) of the machining fixture is provided with fixing bolts (3), the fixing bolts (3) include nuts and screws, the top of the base plate (1) of the machining fixture is installed with a machining fixture pressure plate (2) by fixing bolts (3), the outer wall of the machining fixture pressure plate (2) is provided with a limiting component (4), the limiting component (4) limits the nut of the fixing bolt (3), a circumferential limiting rod (5) is provided between the base plate (1) of the machining fixture and the machining fixture pressure plate (2), and a pressure plate limiting rod (6) is also provided between the base plate (1) of the machining fixture and the machining fixture pressure plate (2).
2. A four-axis machining tooling attachment according to claim 1, wherein: The circumferential limiting rod (5) is set on the front and rear sides of the machining fixture base plate (1). The circumferential limiting rod (5) is used to restrict the movement of the workpiece along the circumferential direction during the machining process.
3. A four-axis machining fixture according to claim 2, wherein: The pressure plate limiting rod (6) is set on the left and right sides of the base plate (1) of the processing fixture, and the pressure plate limiting rod (6) is used to limit the movement range of the pressure plate (2) of the processing fixture.
4. A four-axis machining fixture according to claim 1, wherein: The limiting component (4) includes a slide groove (41) opened on the inner wall of the processing tooling pressure plate (2), a slider (42) slidably connected in the slide groove (41), a return spring (43) set in the slide groove (41), a connecting plate (44) fixed on the outer wall of the top of the slider (42), a pull ring (45) set on the side wall of the connecting plate (44), a fiber rod (46) fixed on the other side wall of the connecting plate (44), and a limiting groove (47) opened on the nut side wall of the fixing bolt (3).
5. A four-axis machining fixture according to claim 4, wherein: One end of the reset spring (43) is connected to the outer wall of the slider (42), and the other end of the reset spring (43) is connected to the inner wall of the groove (41).
6. A four-axis machining fixture according to claim 4, wherein: The outer wall of the pull ring (45) is provided with anti-slip texture, and the shape of the pull ring (45) is set as a ring.
7. A four-axis machining fixture according to claim 4, wherein: The diameter of the fiber rod (46) is set to be equal to the diameter of the limiting groove (47), and the inner wall of the fiber rod (46) is provided with a rubber pad.