OK clamp spring support clamp

CN224713446UActive Publication Date: 2026-09-04CHENGDU ALD AVIATION MFG CORP
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Patent Information

Application Number
CN202521764219.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-09-04
Estimated Expiration
2035-08-19

AI Technical Summary

Technical Problem

[0003]本实用新型的目的在于克服现有技术的缺点,提供一种OK夹弹簧支撑夹具,可用于加工过程中加强产品刚性,减少因产品自身刚性不足而引起的弹刀等问题

Benefits of technology

本实用新型通过定位块、夹块、弹簧销、压板、锁紧螺栓、第一橡胶垫和顶块的设置,将C型构件两侧缘条内壁的筋板分别卡入夹块与定位块之间的两个夹持口,并使两个顶块分别与两侧缘条内壁抵接,然后拧紧锁紧螺钉将压板顶向定位块,使弹簧销向沉孔内收缩且第一橡胶垫与筋板抵接,直至弹簧销和第一橡胶垫同时顶紧筋板,进而将两侧缘条夹持连接在一起,以此防止深腔加工过程中因C型构件的缘条刚性不足造成弹刀等问题,进而保证加工质量。

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Abstract

The utility model relates to a kind of OK clamps spring support clamps, including locating block, detachable clamping block is equipped in the top surface both ends of locating block, clamping opening is formed between clamping block and locating block, locating block top surface is located at clamping opening and is equipped with counterbore, retractable spring pin is equipped in counterbore, clamping block bottom is equipped with the pressing plate corresponding with spring pin, locking screw is threadedly connected in the top of pressing block, locking screw passes through pressing block and is fixedly connected in pressing plate, the bottom surface of pressing plate is equipped with first rubber pad, the side of two clamping blocks opposite detachable is equipped with top block.The utility model has the beneficial effect that it can be used to strengthen the rigidity of the product during processing, reducing the problem of spring knife caused by insufficient rigidity of the product itself.
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Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for parts processing, and specifically relates to an OK clamp spring support fixture. Background Technology

[0002] In the aerospace field, there are various irregularly shaped structural parts, such as C-shaped ones. These irregularly shaped components often present numerous machining challenges. For C-shaped structural parts, when machining their deep cavities, fixtures are used to fix the product on the worktable. However, existing fixtures can only increase the rigidity of the web plate of the product. Due to the insufficient rigidity of the side flanges, problems such as tool ejection are prone to occur during machining, which can lead to the scrapping of the product in severe cases. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an OK clamp spring support fixture, which can be used to strengthen the rigidity of the product during the processing and reduce problems such as tool ejection caused by insufficient rigidity of the product itself.

[0004] The objective of this utility model is achieved through the following technical solution: An OK clamp spring support clamp includes a positioning block, with clamping blocks detachably mounted at both ends of the top surface of the positioning block, forming a clamping opening between the clamping block and the positioning block. A countersunk hole is provided on the top surface of the positioning block at the clamping opening, and a spring pin is retractably mounted in the countersunk hole. A pressure plate corresponding to the spring pin is provided at the bottom of the clamping block, and a locking screw is threadedly connected to the top of the pressure block. The locking screw passes through the pressure block and is fixed to the pressure plate. A first rubber pad is provided on the bottom surface of the pressure plate, and a top block is detachably mounted on one side of the two clamping blocks facing away from each other.

[0005] Furthermore, a connecting block is provided at one end of each of the two clamping blocks facing each other, and the connecting block is fixed to the top surface of the positioning block by bolts.

[0006] Furthermore, the spring pin includes a pin head, a pin rod, and a spring. One end of the pin rod is inserted into the countersunk hole, and the other end of the pin rod is fixed with the pin head. The spring is sleeved on the pin rod, and both ends of the spring are fixedly connected to the bottom of the countersunk hole and the pin head, respectively.

[0007] Furthermore, a T-shaped slide rail is provided on one side of the two clamping blocks facing away from each other, and a slide groove is provided at one end of the top block to slide in a sliding connection with the T-shaped slide rail. The bottom of the clamping block is fixedly connected to the top block by bolts.

[0008] Furthermore, a second rubber pad is provided on the side of the top block opposite to the clamping block.

[0009] Furthermore, a notch is provided on the bottom surface of the end of the clamping block that connects to the connecting block.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention, through the arrangement of a positioning block, a clamping block, a spring pin, a pressure plate, a locking bolt, a first rubber pad, and a top block, secures the inner walls of the C-shaped component's side flanges into the two clamping openings between the clamping block and the positioning block. The two top blocks then abut against the inner walls of the side flanges. Tightening the locking bolt pushes the pressure plate against the positioning block, causing the spring pin to retract into the countersunk hole and the first rubber pad to abut against the rib. This continues until the spring pin and the first rubber pad simultaneously tighten against the rib, thus clamping and connecting the two side flanges together. This prevents problems such as tool bounce caused by insufficient rigidity of the C-shaped component's flanges during deep cavity machining, thereby ensuring machining quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the assembly of the OK clip spring support clamp and the C-shaped component in this utility model; Figure 2 This is a three-dimensional structural diagram of the OK clip spring support clamp in this utility model; Figure 3 This is a front view schematic diagram of the OK clip spring support clamp in this utility model; Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the diagram; Figure 5 This is a top view of the OK clip spring support clamp in this utility model. Figure 6 This is a bottom view of the OK clip spring support clamp in this utility model.

[0012] In the diagram: 1. Positioning block; 2. Clamping block; 3. Spring pin; 4. Pressure plate; 5. Locking screw; 6. First rubber pad; 7. Top block; 8. Connecting block; 9. T-shaped slide rail; 10. Second rubber pad; 11. Notch; 12. Bolt. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0014] An OK clip spring support clamp, used to hold Figure 1 The two side flanges of the C-shaped component shown are clamped together to enhance the overall rigidity of the component and prevent problems such as tool ejection during deep cavity machining.

[0015] like Figures 2-4As shown, the OK clamp spring support clamp includes a positioning block 1. The top surface of the positioning block 1 is detachably provided with clamping blocks 2 at both ends. A clamping opening is formed between the clamping blocks 2 and the positioning block 1. The top surface of the positioning block 1 is provided with a countersunk hole at the clamping opening. A spring pin 3 is provided telescopically in the countersunk hole. The bottom of the clamping block 2 is provided with a pressure plate 4 corresponding to the spring pin 3. The top of the pressure block is threaded with a locking screw 5. The locking screw 5 passes through the pressure block and is fixed to the pressure plate 4. The bottom surface of the pressure plate 4 is provided with a first rubber pad 6. A top block 7 is detachably provided on the opposite side of the two clamping blocks 2.

[0016] like Figure 1 As shown, the stiffening plates on the inner walls of the two side flanges of the C-shaped component are respectively inserted into the two clamping holes, and the two top blocks 7 are respectively abutted against the inner walls of the two side flanges. Then, the locking screws 5 are tightened to push the pressure plate 4 against the positioning block 1, so that the spring pin 3 retracts into the countersunk hole and the first rubber pad 6 abuts against the stiffening plate until the spring pin 3 and the first rubber pad 6 simultaneously press against the stiffening plate, thereby clamping and connecting the two side flanges together, so as to prevent problems such as tool bounce caused by insufficient rigidity of the flanges during processing.

[0017] like Figure 2 , Figure 3 , Figure 5 As shown, a connecting block 8 is provided at one end of each of the two clamping blocks 2. The connecting block 8 is integrally formed with the clamping block 2. The connecting block 8 is fixed to the top surface of the positioning block 1 by bolts 12. Before clamping the edge strip, the connecting block 8 is removed. When clamping, the top surface of the positioning block 1 is first brought close to one side of the stiffening plate. Then, the connecting block 8 is fixed to the positioning block 1 by bolts 12, so that the first rubber pad 6 is in contact with the other side of the stiffening plate. Then, the locking screw 5 is tightened to clamp the stiffening plate. In addition, a notch 11 is provided on the bottom surface of the end of the clamping block 2 that is connected to the connecting block 8, so as to facilitate the transition of the protruding structure of the outer edge of the stiffening plate when clamping the stiffening plate.

[0018] The spring pin 3 includes a pin head, a pin rod, and a spring. One end of the pin rod is inserted into the countersunk hole, and the other end of the pin rod is fixed with the pin head. The spring is sleeved on the pin rod, and both ends of the spring are fixedly connected to the bottom of the countersunk hole and the pin head, respectively. When clamping the flange, the pin head and the pin rod retract into the countersunk hole simultaneously, thereby squeezing the spring. After tightening the locking screw 5, the pin head is pressed against the flange under the elastic force of the spring.

[0019] like Figure 5 , Figure 6 As shown, in order for the clamp to abut against the inner walls of components of different thicknesses, a T-shaped slide rail 9 is provided on the opposite side of the two clamping blocks 2. The T-shaped slide rail 9 is integrally formed with the clamping blocks 2. One end of the top block 7 is provided with a slide groove that slides with the T-shaped slide rail 9. The bottom of the clamping block 2 is fixedly connected to the top block 7 by bolts 12. This facilitates the disassembly and assembly of the top block 7, and allows for the replacement of different top blocks 7 according to the different thicknesses of the components. Figure 3 As shown, in order to prevent the top block 7 from damaging the flange strip, a second rubber pad 10 is fixed on the side of the top block 7 opposite to the clamping block 2.

[0020] Finally, although embodiments of the present invention have been shown and described above, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring-supported clamp for OK clips, characterized in that: The positioning block (1) includes a positioning block (1), and clamping blocks (2) are detachably provided at both ends of the top surface of the positioning block (1). A clamping opening is formed between the clamping block (2) and the positioning block (1). A countersunk hole is provided on the top surface of the positioning block (1) at the clamping opening. A spring pin (3) is provided in the countersunk hole. A pressure plate (4) corresponding to the spring pin (3) is provided at the bottom of the clamping block (2). A locking screw (5) is threaded on the top of the pressure block. The locking screw (5) passes through the pressure block and is fixed to the pressure plate (4). A first rubber pad (6) is provided on the bottom surface of the pressure plate (4). A top block (7) is detachably provided on the opposite side of the two clamping blocks (2).

2. The OK clip spring support clamp according to claim 1, characterized in that: Two clamping blocks (2) are provided with a connecting block (8) at one end opposite to each other. The connecting block (8) is fixed to the top surface of the positioning block (1) by bolts (12).

3. The OK clip spring support clamp according to claim 2, characterized in that: The spring pin (3) includes a pin head, a pin rod and a spring. One end of the pin rod is inserted into the countersunk hole, and the other end of the pin rod is fixed with a pin head. The spring is sleeved on the pin rod, and the two ends of the spring are fixedly connected to the bottom of the countersunk hole and the pin head, respectively.

4. The OK clip spring support clamp according to claim 1, characterized in that: The two clamping blocks (2) are provided with a T-shaped slide rail (9) on one side facing away from each other. The top block (7) is provided with a slide groove that is slidably connected to the T-shaped slide rail (9) at one end. The bottom of the clamping block (2) is fixedly connected to the top block (7) by bolts (12).

5. The OK clip spring support clamp according to claim 1, characterized in that: A second rubber pad (10) is provided on the side of the top block (7) opposite to the clamping block (2).

6. The OK clip spring support clamp according to claim 2, characterized in that: A notch (11) is provided on the bottom surface of the end of the clamping block (2) that is connected to the connecting block (8).