Fixture special for spring steel wire size machining

Abstract

The utility model relates to a special fixture for processing the size of a spring steel wire, which comprises a base and a pressing structure, and is technically characterized in that a long positioning seat is arranged on the upper surface of the base, a long straight-through groove is arranged on the upper surface of the long positioning seat, and a linear module perpendicular to the long straight-through groove is arranged on the base on one side of the long positioning seat. A lifting structure is fixed to the upper portion of a sliding block of the linear module, the pressing structure comprises a pressing block fixed to the top of the lifting structure, a right-angle notch matched with the long fixed base is formed in the lower surface of the pressing block, a roller structure is embedded in the top face of the right-angle notch and located above the long straight-through groove, and the roller structure comprises a roller frame and a plurality of rollers arranged on the bottom face of the roller frame. The rollers are arranged at intervals in the length direction of the long straight-through groove. The fixture solves the problem of low milling precision in the width direction of the spring steel wire, is convenient to clamp and ensures the accuracy of the width size of a product, so that the consistency of the product is improved, the percent of pass is high, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of spring wire part processing and manufacturing, and particularly relates to a special fixture for spring wire size processing. Background Art

[0002] The processing requirements of aviation parts are strictly precise. To ensure product quality, special fixtures are required to clamp and position parts during part processing.

[0003] For spring series parts in the aviation field, precise control of the width dimension of spring wire is required. However, due to the particularity of spring wire, when milling the width direction of spring wire, it is difficult to control the wire position accuracy, which requires high work experience of operators, has high processing difficulty, low milling accuracy, and high scrap rate. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a special fixture for spring wire size processing with reasonable structure and reliable use, to solve the problem of low milling accuracy in the width direction of spring wire, which is convenient for clamping and ensures the accuracy of the product width dimension, thereby improving product consistency, having a high qualified rate, and reducing production costs.

[0005] The technical solution of the utility model is as follows:

[0006] A special fixture for spring wire size processing includes a base and a pressing structure. The technical key points are: a long positioning seat is arranged on the upper surface of the base, a long through groove is arranged on the upper surface of the long positioning seat, a linear module perpendicular to the long through groove is arranged on one side of the long positioning seat on the base, a lifting structure is fixed above the slider of the linear module, the pressing structure includes a pressing block fixed to the top of the lifting structure, a right-angle notch cooperating with the long positioning seat is arranged on the lower surface of the pressing block, a roller structure is embedded on the top surface of the right-angle notch, the roller structure is located above the long through groove, and the roller structure includes a wheel frame and a plurality of rollers arranged on the bottom surface of the wheel frame, and each roller is arranged at intervals along the length direction of the long through groove.

[0007] For the above-mentioned special fixture for spring wire size processing, the long positioning seat includes a main support and an L-shaped baffle arranged on the side of the main support facing away from the pressing block. The long through groove is formed by the combination of the main support and the L-shaped baffle, and it is composed of a right-angle groove body at the edge of the main support and the side wall of the L-shaped baffle. The upper surface of the horizontal section of the L-shaped baffle is flush with the upper surface of the main support.

[0008] For the above-mentioned special fixture for spring wire size processing, a proximity switch is fixed to the top of the vertical section of the L-shaped baffle, and an induction part cooperating with the proximity switch is arranged on the side of the pressing block close to the L-shaped baffle.

[0009] The above-mentioned special fixture for spring wire size processing, the number of the linear modules is two and they are arranged at intervals. The sliders of the two linear modules are connected together by a linkage plate. The lifting structure includes two lifting cylinders fixed on the upper surface of the linkage plate and a lifting plate connected to the tops of the cylinder rods of the two lifting cylinders. The lifting plate is fixedly connected to the lower surface of the pressing block.

[0010] The above-mentioned special fixture for spring wire size processing, another first connecting ear is fixedly arranged at the top of the vertical section of the L-shaped baffle. A second connecting ear matching with the first connecting ear is arranged on the side of the pressing block close to the L-shaped baffle. The first connecting ear and the second connecting ear can be connected together by a bolt pair. A round hole corresponding to the bolt pair is arranged on the first connecting ear, and a vertical long hole corresponding to the bolt pair is arranged on the second connecting ear.

[0011] The above-mentioned special fixture for spring wire size processing, the center line of the roller is perpendicular to the long straight groove, and the length of the roller is greater than the width of the long straight groove.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. During use, the pressing block is lifted away from above the long positioning seat, the spring wire to be processed is introduced into the long straight groove, and then the pressing block is lowered and the roller structure is pressed above the spring wire to be processed. Driven by the traction mechanism, the spring wire is led out from the front end of the long straight groove and sent to the milling processing equipment. The present utility model uses the pressing block and the roller structure to clamp and straighten the spring wire. During the traction process, the roller of the roller structure and the spring wire are in rolling friction, reducing the friction force and avoiding serious wear on the surface of the spring wire. The straightened spring wire is beneficial to controlling the width dimension in the subsequent milling processing, solving the problem of low milling processing accuracy in the width direction of the spring wire, thereby ensuring the accuracy of the product width dimension, improving the consistency of the product, having a high qualified rate, and reducing the production cost.

[0014] 2. The lifting structure and the linear module are adopted to drive the pressing block and the roller structure to realize the position adjustment in the vertical and horizontal directions, which is convenient for clamping the spring wire to be processed and has a high clamping efficiency. Description of the Drawings

[0015] Figure 1 is the structural schematic diagram of the present utility model;

[0016] Figure 2 is Figure 1 the top view of

[0017] Figure 3 is Figure 1 the right view of the pressing block and the peripheral components in

[0018] Figure 4 is Figure 1 the enlarged view of part A in

[0019] In the figure: 1. Linear module, 2. Base, 3. Lifting plate, 4. Lifting cylinder, 5. Linkage plate, 6. Pressing block, 7. Inductive element, 8. First connecting ear, 9. Proximity switch, 10. L-shaped baffle, 11. Main support, 12. Second connecting ear, 13. Long straight through slot, 14. Vertical long hole, 15. Roller structure, 16. Roller. Detailed implementation mode

[0020] The present utility model will be described in detail according to the accompanying drawings of the specification.

[0021] As Figures 1 to 4 shown, the special fixture for spring wire size processing includes a base 2 and a pressing structure.

[0022] Among them, a long positioning seat is provided on the upper surface of the base 2, and a long straight through slot 13 is provided on the upper surface of the long positioning seat. A linear module 1 perpendicular to the long straight through slot 13 is provided on one side of the long positioning seat of the base 2, and a lifting structure is fixed above the slider of the linear module 1. The pressing structure includes a pressing block 6 fixed to the top of the lifting structure. A right-angle notch matching with the long positioning seat is provided on the lower surface of the pressing block 6. A roller structure 15 is embedded on the top surface of the right-angle notch. The roller structure 15 is located above the long straight through slot 13. The roller structure 15 includes a wheel frame and a plurality of rollers 16 provided on the bottom surface of the wheel frame. Each roller 16 is arranged at intervals along the length direction of the long straight through slot 13. The center line of the roller 16 is perpendicular to the long straight through slot 13, and the length of the roller 16 is greater than the width of the long straight through slot 13.

[0023] In this embodiment, the long positioning seat includes a main support 11 and an L-shaped baffle 10 provided on the side of the main support 11 facing away from the pressing block. The long straight through slot 13 is formed by the combination of the main support 11 and the L-shaped baffle 10, and is composed of a right-angle groove body at the edge of the main support 11 and the side wall of the L-shaped baffle 10. The upper surface of the horizontal section of the L-shaped baffle 10 is flush with the upper surface of the main support 11. A proximity switch 9 is fixed to the top of the vertical section of the L-shaped baffle 10, and an inductive element 7 matching with the proximity switch 9 is provided on the side of the pressing block 6 close to the L-shaped baffle 10. A first connecting ear 8 is further fixed to the top of the vertical section of the L-shaped baffle 10, and a second connecting ear 12 matching with the first connecting ear 8 is provided on the side of the pressing block 6 close to the L-shaped baffle. The first connecting ear 8 and the second connecting ear 12 can be connected together by a bolt pair. A round hole corresponding to the bolt pair is provided on the first connecting ear 8, and a vertical long hole 14 corresponding to the bolt pair is provided on the second connecting ear 12.

[0024] The number of the linear modules 1 is two and they are arranged at intervals. The sliders of the two linear modules 1 are connected together by a linkage plate 5. The lifting structure includes two lifting cylinders 4 fixed on the upper surface of the linkage plate 5 and a lifting plate 3 connected to the tops of the cylinder rods of the two lifting cylinders 4. The lifting plate 3 is fixedly connected to the lower surface of the pressing block 6.

[0025] Working principle:

[0026] 1. During use, the pressing block 6 rises driven by the lifting structure and then moves away from the long positioning seat driven by the linear module 1. The staff introduces the spring wire to be processed into the long straight groove 13, and the front end of the spring wire is connected to the traction mechanism.

[0027] 2. The pressing block 6 reaches above the long positioning seat driven by the linear module 1 and then descends driven by the lifting structure, so that each roller 16 presses on the upper surface of the spring wire to be processed. During the above process, the horizontal position of the pressing block 6 can be slightly adjusted. When the proximity switch 9 detects the sensing part 7, the linear module 1 stops working. The first connecting ear 8 and the second connecting ear 12 are connected together by a bolt pair.

[0028] 3. Driven by the traction mechanism, the spring wire is led out from the front end of the long straight groove 13 and sent to the milling equipment. During the traction process, the spring wire is pressed and straightened by the pressing block 6 and the roller structure 15. The roller of the roller structure 15 has a rolling friction with the spring wire, and the friction force is small, which avoids serious wear on the surface of the spring wire. The straightened spring wire is beneficial to controlling the width dimension in the subsequent milling process and ensuring the product qualification rate.

[0029] The above has described the embodiments of the present invention in detail, but the content described is only the preferred embodiments of the present invention and cannot be considered as limiting the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the creation of the present invention shall still fall within the scope covered by this patent.

Claims

1. A special clamp for spring wire size processing, including a base and a clamping structure, characterized in that: A long positioning seat is provided on the upper surface of the base, and a long straight-through slot is provided on the upper surface of the long positioning seat. A linear module perpendicular to the long straight-through slot is provided on one side of the long positioning seat of the base. A lifting structure is fixed above the slider of the linear module. The clamping structure includes a pressing block fixed to the top of the lifting structure, and a right-angle notch matched with the long fixed seat is provided on the lower surface of the pressing block. A roller structure is embedded on the top surface of the right-angle notch. The roller structure is located above the long straight-through slot. The roller structure includes a wheel frame and a plurality of rollers provided on the bottom surface of the wheel frame, and the rollers are arranged at intervals along the length direction of the long straight-through slot.

2. The special fixture for spring wire size processing according to claim 1 is characterized in that: The long positioning seat includes a main support and an L-shaped baffle plate arranged on the side of the main support facing away from the pressure block. The long straight groove is composed of the main support and the L-shaped baffle plate, which is composed of a right-angle groove body located at the edge of the main support and the side baffle wall of the L-shaped baffle plate. The upper surface of the horizontal section of the L-shaped baffle plate is flush with the upper surface of the main support.

3. The special fixture for spring wire size processing according to claim 2 is characterized in that: A proximity switch is fixed on the top of the vertical section of the L-shaped baffle, and a sensing element cooperating with the proximity switch is provided on the side of the pressing block that is pulled close to the L-shaped baffle.

4. The special fixture for spring wire size processing according to claim 1 is characterized in that: There are two linear modules arranged at intervals, the sliders of the two linear modules are connected together by a linkage plate, the lifting structure includes two lifting cylinders fixed on the upper surface of the linkage plate, and a lifting plate connected to the tops of the cylinder rods of the two lifting cylinders, and the lifting plate is fixedly connected to the lower surface of the pressure block.

5. The special fixture for spring wire size processing according to claim 2 is characterized in that: A first connecting ear is fixed to the top of the vertical section of the L-shaped baffle, and a second connecting ear that cooperates with the first connecting ear is provided on the side of the pressure block pulled close to the L-shaped baffle. The first connecting ear and the second connecting ear can be connected together by a bolt pair, and the first connecting ear is provided with a circular hole corresponding to the bolt pair, and the second connecting ear is provided with a vertical long hole corresponding to the bolt pair.

6. The special fixture for spring wire size processing according to claim 1 is characterized in that: The center line of the roller is perpendicular to the long straight slot, and the length of the roller is greater than the width of the long straight slot.

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