High-precision thin-walled part machining clamp

Abstract

The utility model aims at providing a kind of high-precision thin-walled part machining clamp for thin-walled part by elastic clamping, reduce thin-walled part deformation, can be compatible with the processing of multiple sizes thin-walled part.The utility model includes bottom plate, limit ring, several adjusting components and several clamping blocks, the limit ring is detachably installed on the bottom plate, each adjusting component is set on the bottom plate at equal intervals, one end of each clamping block is correspondingly guidedly connected with the adjusting component, the other end of each clamping block is formed with the upper part of the limit ring to form a clamping space for clamping thin-walled parts, and the middle part of each clamping block is limitedly matched with the bottom plate by floating support rod.The utility model is applied to the technical field of thin-walled part clamp.

Description

Technical Field

[0001] This utility model relates to the technical field of fixtures for thin-walled parts, and in particular to a high-precision fixture for machining thin-walled parts. Background Technology

[0002] When machining thin-walled parts with high precision, special fixtures are needed to clamp the workpiece tightly to avoid slight vibration or metal resonance, thus preventing accidents such as tool collision.

[0003] As a type of precision component, thin-walled ring parts are typically manufactured using rigid tooling fixtures to position their thin-walled portions before cutting. However, this workpiece clamping method has drawbacks: the rigid tooling makes rigid contact with the thin-walled portion of the workpiece during clamping, causing deformation of the thin-walled ring part; custom-made tooling for thin-walled parts is costly, and different sizes of thin-walled parts require custom-made fixtures of corresponding sizes, leading to increased processing costs. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-precision thin-walled part processing fixture that can reduce the deformation of thin-walled parts by elastically clamping them and can be compatible with the processing of thin-walled parts of various sizes.

[0005] The technical solution adopted by this utility model is as follows: This utility model includes a base plate, a limiting ring, several adjusting components, and several clamping blocks. The limiting ring is detachably installed on the base plate. Each adjusting component is equally spaced on the base plate. One end of each clamping block is guided and connected to the corresponding adjusting component. The other end of each clamping block forms a clamping space with the upper part of the limiting ring for clamping thin-walled parts. The middle part of each clamping block is limited and cooperated with the base plate through a floating support rod.

[0006] Furthermore, a positioning seat is provided in the middle of the base plate, which is fixedly connected to the corresponding adjustment component. Positioning plates are provided on both sides of each positioning seat. The positioning plates are guided and cooperate with the adjustment components. Each positioning plate has at least two positioning holes.

[0007] Furthermore, the base plate is provided with several guide columns at equal intervals.

[0008] Furthermore, an installation platform is formed on the inner side of the limiting ring. The installation platform is provided with guide holes that correspond to and cooperate with the guide posts. A plurality of locking screws are provided between each guide hole. Each locking screw passes through the installation platform and is detachably connected to the base plate.

[0009] Furthermore, the adjustment assembly includes a micro-adjustment seat fixedly connected to the base plate, a limiting plate fixedly connected to the micro-adjustment seat, and a positioning slider detachably connected to the limiting plate; the limiting plate forms a groove for guiding and engaging the positioning slider, a guide protrusion for limiting and engaging the positioning slider is provided above the groove, and a guide rod for guiding and engaging the clamping block is formed on the upper surface of the positioning slider.

[0010] Furthermore, a connecting groove is formed on the rear side of the positioning slider, and the connecting groove is detachably connected to the limiting plate through a locking member.

[0011] Furthermore, a slot is formed in the middle of the clamping block for sliding engagement with the floating support rod, a mounting hole is formed at one end of the clamping block, the mounting hole is guided and engaged with the adjustment component, and a clamping head is formed at the other end of the clamping block, the clamping head having a locking step that engages with the limiting ring.

[0012] Furthermore, the floating support rod includes a support rod and a tension spring. One end of the support rod is fixedly connected to the base plate. The tension spring is sleeved on the support rod and disposed between the clamping block and the base plate. The upper part of the support rod is provided with a pressure plate that cooperates with the clamping block for limiting.

[0013] The beneficial effects of this utility model are as follows: the adjustment component, through the micro-adjustment seat structure with bidirectional XY micro-adjustment stroke, can adjust the position of the clamping block according to the size of the thin-walled part. At the same time, the detachable limiting ring structure allows for quick replacement of the corresponding limiting ring according to the size of the thin-walled part. The limiting ring, in conjunction with the clamping block structure, positions and clamps the annular thin-walled part. Meanwhile, the clamping block is limited by the floating support rod and the base plate. The tension spring of the floating support rod provides downward tension to the clamping block, improving the clamping and fixing stability. The tension spring provides downward tension to the clamping block. When multiple clamping blocks clamp the thin-walled part, it effectively avoids the situation where the clamping block and the thin-walled part are in rigid contact, which could lead to deformation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the high-precision thin-walled part processing fixture of this utility model;

[0015] Figure 2 This is an exploded view of the fit between the base plate and the limiting ring of the high-precision thin-walled part processing fixture of this utility model.

[0016] Figure 3 yes Figure 2 A magnified view of part A in the middle;

[0017] Figure 4 This is an exploded view of the adjustment assembly of the high-precision thin-walled part machining fixture of this utility model;

[0018] Figure 5 yes Figure 4 A magnified view of part B in the middle section;

[0019] Figure 6 This is a schematic diagram of the first structure of the high-precision thin-walled part processing fixture of this utility model, showing the cooperation between the clamping block and the limiting block.

[0020] Figure 7 This is a second structural diagram of the clamping block and the limiting block of the high-precision thin-walled part processing fixture of this utility model.

[0021] In the diagram: 1. Base plate; 11. Positioning seat; 12. Positioning plate; 13. Positioning hole; 14. Guide post;

[0022] 2. Limiting ring; 21. Mounting platform; 22. Guide hole; 23. Locking screw;

[0023] 3. Adjustment components; 31. Micro-adjustment seat; 32. Limiting plate; 33. Positioning slider; 331. Connecting groove; 332. Locking element; 34. Slide groove; 35. Guide flange; 36. Guide rod;

[0024] 4. Clamping block; 41. Slot; 42. Mounting hole; 43. Clamp head; 44. Clamping step;

[0025] 5. Floating strut; 51. Support rod; 52. Tension spring; 53. Pressure plate. Detailed Implementation

[0026] like Figure 1 As shown, in this embodiment, the present invention includes a base plate 1, a limiting ring 2, a plurality of adjusting components 3, and a plurality of clamping blocks 4. The limiting ring 2 is detachably installed on the base plate 1. Each of the adjusting components 3 is equally spaced on the base plate 1. One end of each clamping block 4 is guided and connected to the corresponding adjusting component 3. The other end of each clamping block 4 forms a clamping space with the upper part of the limiting ring 2 for clamping thin-walled parts. The middle part of each clamping block 4 is limited and cooperated with the base plate 1 through a floating support rod 5.

[0027] Specifically, the edge of the base plate 1 has multiple bayonets, which can be fixedly installed on the tool table with bolts and nuts to improve stability during the processing of thin-walled parts. The adjustment component 3, through the micro-adjustment seat 31 structure with XY bidirectional micro-adjustment stroke, can adjust the position of the clamping block 4 according to the size of the thin-walled part. At the same time, the detachable limiting ring 2 structure can quickly replace the corresponding limiting ring 2 according to the size of the thin-walled part. The limiting ring 2, together with the clamping block 4 structure, positions and clamps the annular thin-walled part. Meanwhile, the clamping block 4 is limited and cooperates with the base plate 1 through the floating support rod 5. The tension spring 52 of the floating support rod 5 provides downward tension to the clamping block 4, improving the clamping and fixing stability. At the same time, the tension spring 52 provides downward tension to the clamping block 4. While multiple clamping blocks 4 clamp the thin-walled part, it effectively avoids the situation where the clamping block 4 and the thin-walled part are in rigid contact, which would cause deformation.

[0028] like Figures 2 to 3 As shown, in this embodiment, the base plate 1 is provided with a positioning seat 11 in the middle, which is fixedly connected to the corresponding adjustment component 3. Each positioning seat 11 is provided with a positioning plate 12 on both sides. The positioning plate 12 is guided and cooperated with the adjustment component 3. Each positioning plate 12 is formed with at least two positioning holes 13.

[0029] Specifically, the angle between two adjacent positioning seats 11 is preferably 45 degrees. The positioning seats 11 are evenly spaced and, together with the adjustment component 3, clamp and fix the thin-walled part at multiple angles, thereby improving clamping stability. The multi-point clamping limit reduces the situation where the force on a single clamping positioning position is too large.

[0030] In this embodiment, the base plate 1 is provided with a plurality of guide posts 14 at equal intervals.

[0031] Specifically, the base plate 1 has openings that cooperate with the guide post 14, allowing the guide post 14 to be quickly disassembled and assembled, making it convenient for staff to replace the limit ring 2.

[0032] In this embodiment, a mounting platform 21 is formed on the inner side of the limiting ring 2. The mounting platform 21 is provided with guide holes 22 that correspond to and cooperate with the guide posts 14. A plurality of locking screws 23 are provided between each guide hole 22. Each locking screw 23 passes through the mounting platform 21 and is detachably connected to the base plate 1.

[0033] Specifically, the mounting platform 21 is detachably mounted to the base plate 1 using multiple locking screws 23, which makes disassembly and assembly simple and convenient, improving the replacement efficiency of the limit ring 2. A limit step is formed between the upper edge of the mounting platform 21 and the limit ring 2, and the limit step is used to control the maximum extension of the clamping block 4.

[0034] like Figures 4 to 5As shown, in this embodiment, the adjustment component 3 includes a micro-adjustment seat 31 fixedly connected to the base plate 1, a limiting plate 32 fixedly connected to the micro-adjustment seat 31, and a positioning slider 33 detachably connected to the limiting plate 32; the limiting plate 32 forms a groove 34 for guiding and engaging the positioning slider 33, and a guide flange 35 for limiting and engaging the positioning slider 33 is provided above the groove 34; the upper surface of the positioning slider 33 forms a guide rod 36 for guiding and engaging the clamping block 4.

[0035] Specifically, the micro-adjustment seat 31 is used to adjust the displacement in both the X and Y axes. The operator adjusts the displacement in the X or Y axis direction by turning the knob adjustment rod, thereby adjusting the position of the clamping block 4 so that the end of the clamping block 4 is in complete contact with the thin-walled part, avoiding the formation of an angle between the end of the clamping block 4 and the thin-walled part, which would cause uneven force on the local area of ​​the thin-walled part during processing and lead to deformation.

[0036] The limiting plate 32 is fixedly installed at the movable end of the adjusting component 3 by screws. It is used to guide the installation of the positioning slider 33. The guide flange 35 is used to limit the displacement of the positioning slider 33 in the Z-axis direction after it is engaged, thereby improving the stability of the fixture.

[0037] In this embodiment, a connecting groove 331 is formed on the rear side of the positioning slider 33, and the connecting groove 331 is detachably connected to the limiting plate 32 through a locking member 332.

[0038] Specifically, the locking element 332 is a bolt or screw, and the limiting plate 32 has a threaded hole for the detachable installation of the positioning slider 33.

[0039] like Figures 6 to 7 As shown, in this embodiment, the middle part of the clamping block 4 has a slot 41 for sliding engagement with the floating support rod 5, one end of the clamping block 4 has a mounting hole 42, the mounting hole 42 is guided and engaged with the adjustment component 3, and the other end of the clamping block 4 has a clamping head 43, the clamping head 43 has a clamping step 44 that is engaged with the limiting ring 2.

[0040] Specifically, the slot 41 ensures that the limit effect of the floating support rod 5 on the clamping block 4 is not affected when the travel of the clamping block 4 is adjusted in the X-axis and Y-axis directions. The clamp 43 is used to press the end of the thin-walled part, and the clamping step 44 is set at the lower part of the clamp 43 for clamping and fixing the thin-walled part.

[0041] In this embodiment, the floating support rod 5 includes a support rod 51 and a tension spring 52. One end of the support rod 51 is fixedly connected to the base plate 1. The tension spring 52 is sleeved on the support rod 51 and is disposed between the clamping block 4 and the base plate 1. The upper part of the support rod 51 is provided with a pressure plate 53 that cooperates with the clamping block 4 for limiting.

[0042] Specifically, the lower end of the support rod 51 is threadedly connected and fixed to the base plate 1, and the tension spring 52 provides a downward pulling force to the clamping block 4. During the process of clamping and positioning the thin-walled part, the clamping block 4 has a certain amount of floating, which ensures that the clamping block 4 is fully positioned on the thin-walled part and avoids deformation caused by rigid clamping.

[0043] The working principle of this utility model:

[0044] Replace the corresponding size limit ring 2 with the thin-walled part to be processed and fix it with locking screw 23. Fix the micro-adjustment seat 31 on the positioning seat 11. Fix the limit plate 32 on the limit plate 32 with screws. Then guide the positioning slider 33 into the limit plate 32. After adjusting the position of the positioning slider 33, position it by locking part 332. Install the clamping block 4 on the positioning slider 33. Then insert the floating slide rod at the slot 41 to restrict the Z-axis freedom of the clamping block 4. The operator adjusts the displacement in the X-axis or Y-axis direction by adjusting the knob adjustment rod, thereby adjusting the position of the clamping block 4 so that the end of the clamping block 4 is in complete contact with the thin-walled part.

[0045] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.

Claims

1. A high-precision machining fixture for thin-walled parts, characterized in that: The device includes a base plate (1), a limiting ring (2), several adjusting components (3), and several clamping blocks (4). The limiting ring (2) is detachably installed on the base plate (1). Each adjusting component (3) is equally spaced on the base plate (1). One end of each clamping block (4) is guided and connected to the corresponding adjusting component (3). The other end of each clamping block (4) forms a clamping space with the upper part of the limiting ring (2) for clamping thin-walled parts. The middle part of each clamping block (4) is limited and cooperated with the base plate (1) through a floating support rod (5).

2. The high-precision thin-walled part machining fixture according to claim 1, characterized in that: The base plate (1) is provided with a positioning seat (11) in the middle, which is fixedly connected to the corresponding adjustment component (3). Each positioning seat (11) is provided with a positioning plate (12) on both sides. The positioning plate (12) is guided and cooperated with the adjustment component (3). Each positioning plate (12) has at least two positioning holes (13).

3. A high-precision thin-walled part machining fixture according to claim 2, characterized in that: The base plate (1) is provided with several guide columns (14) at equal intervals.

4. A high-precision thin-walled part machining fixture according to claim 3, characterized in that: The inner side of the limiting ring (2) is formed with a mounting platform (21). The mounting platform (21) is provided with guide holes (22) that correspond to and cooperate with the guide posts (14). A plurality of locking screws (23) are provided between each guide hole (22). Each locking screw (23) passes through the mounting platform (21) and is detachably connected to the base plate (1).

5. A high-precision thin-walled part machining fixture according to claim 1, characterized in that: The adjustment assembly (3) includes a micro-adjustment seat (31) fixedly connected to the base plate (1), a limiting plate (32) fixedly connected to the micro-adjustment seat (31), and a positioning slider (33) detachably connected to the limiting plate (32); the limiting plate (32) forms a groove (34) for guiding the positioning slider (33), and a guide flange (35) for limiting the positioning slider (33) is provided above the groove (34), and a guide rod (36) for guiding the clamp (4) is formed on the upper surface of the positioning slider (33).

6. A high-precision thin-walled part machining fixture according to claim 5, characterized in that: A connecting groove (331) is formed on the rear side of the positioning slider (33), and the connecting groove (331) is detachably connected to the limiting plate (32) by a locking member (332).

7. A high-precision thin-walled part machining fixture according to claim 1, characterized in that: The middle part of the clamping block (4) has a slot (41) for sliding engagement with the floating support rod (5). One end of the clamping block (4) has a mounting hole (42) which engages with the adjusting component (3). The other end of the clamping block (4) has a clamp (43) which has a locking step (44) that engages with the limiting ring (2).

8. A high-precision thin-walled part machining fixture according to claim 7, characterized in that: The floating support rod (5) includes a support rod (51) and a tension spring (52). One end of the support rod (51) is fixedly connected to the base plate (1). The tension spring (52) is sleeved on the support rod (51) and is located between the clamping block (4) and the base plate (1). The upper part of the support rod (51) is provided with a pressure plate (53) that limits the clamping block (4).

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