Non-magnetic aluminum alloy screw heat treatment metallographic inspection sample piece linear cutting device

Abstract

The utility model provides a non-magnetic aluminum alloy screw heat treatment metallographic inspection sample linear cutting device, which belongs to the field of heat treatment clamps and comprises a clamping plate group, the clamping plate group is positioned at a step groove of a workbench A of a linear cutting machine and is used for clamping the head of a screw to enable a screw rod to be perpendicular to the workbench A, the screw rod is exposed out of the clamping plate group, and the clamping plate group is used for clamping the head of the screw rod. A supporting plate is arranged between the clamping plate set and a step groove of a workbench of the wire cutting machine B in a clamped mode, and the supporting plate abuts against the clamping plate set so that the position of the clamping plate set can be fixed. The screw cutting device has the advantages that a plurality of screws can be clamped and cut at the same time, the cutting precision and the consistency of cut finished products are guaranteed, convenience is provided for subsequent sample piece preparation, the clamping procedure is simplified, and the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of heat treatment fixtures, and in particular relates to a wire cutting fixture for metallographic inspection of non-magnetic aluminum alloy screw heat treatment samples. Background Technology

[0002] After solution treatment and aging, the internal hardness of aluminum alloy screws must be tested to confirm whether it meets technical requirements. When preparing a screw sample, it needs to be cut vertically from the screw section, and then the cut portion is embedded in the sample.

[0003] Because the screws are small, they cannot be clamped using a metallographic cutting machine, nor can they be directly clamped on the worktable of a wire cutting machine. Furthermore, aluminum alloy screws are conductive but not magnetic, so they cannot be directly attracted to the worktable of a wire cutting machine using a magnet. The only option is to cut the screw head manually using a grinding wheel, leaving the screw head intact for mounting and sample making. This method is inefficient, dangerous due to manual operation, and does not meet the requirements of modern production. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wire cutting fixture for metallographic inspection of heat-treated non-magnetic aluminum alloy screws. This fixture can simultaneously clamp and cut multiple screws, ensuring the cutting accuracy and consistency of the finished product. It also facilitates subsequent sample preparation, simplifies the clamping process, and greatly improves production efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a wire cutting fixture for metallographic inspection of heat-treated non-magnetic aluminum alloy screws, including a clamping plate assembly. The clamping plate assembly is located at the stepped groove of the A worktable of the wire cutting machine and is used to clamp the head of the screw so that the screw is perpendicular to the A worktable. The screw protrudes from the clamping plate assembly. A support plate is clamped between the clamping plate assembly and the stepped groove of the B worktable of the wire cutting machine. The position of the clamping plate assembly is fixed by the support plate abutting against the clamping plate assembly.

[0006] Furthermore, the clamping plate assembly includes a base plate and a plug plate, with multiple insertion holes staggered on the plug plate for the screw to pass through.

[0007] Furthermore, a magnetic adsorption part is attached to the workbench A, which is used to adsorb the reference plate.

[0008] Furthermore, there are two support plates, which respectively press against both sides of the front end face of the clamping plate assembly.

[0009] Furthermore, the height of the clamping plate assembly is slightly higher than the depth of the step groove of the A workbench.

[0010] Furthermore, the socket is provided in two sets, and the two sets of sockets are arranged alternately vertically.

[0011] Furthermore, the clamping plate assembly is made of ferromagnetic material.

[0012] The advantages and positive effects of this utility model are:

[0013] 1. Due to the adoption of the above technical solution, it can be used in conjunction with a wire EDM machine. The cut of the wire EDM machine is more precise than manual cutting and grinding, avoiding the generation of defective parts. The clamping plate assembly can clamp multiple screws at the same time and complete the cutting in one go. The staggered insertion holes make reasonable use of the available space, reduce the number of clamping times for a single screw, improve work efficiency, and meet the needs of modern production.

[0014] 2. Through three-point positioning, namely, the support plate makes the clamping plate assembly parallel to the worktable and close to the inner wall of the stepped groove, the clamping plate assembly makes the position of the screw perpendicular to the worktable, and the magnetic suction part further prevents the clamping plate assembly from loosening and shaking, the screw can be clamped quickly, effectively avoiding the wire cutting section deviation caused by the screw clamping loosening. Moreover, the fixture is easy to clamp and accurately positioned, which facilitates the subsequent cutting of the electrode wire. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the clamping plate assembly according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of a clamping plate assembly according to another embodiment of the present invention.

[0018] In the picture:

[0019] 1. Workbench A; 11. Workbench B;

[0020] 2. Magnetic suction part; 3. Base plate; 31. Connecting plate; 311. Socket;

[0021] 4. Support plate;

[0022] 5. Upper pressure plate; 501. Pressure block; 51. Lower card holder; 511. Card slot; 512. Slot. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0024] like Figures 1 to 3 As shown, this embodiment provides a wire cutting fixture for metallographic inspection of heat-treated non-magnetic aluminum alloy screws, including a clamping plate assembly located in the stepped groove of the wire cutting machine's worktable;

[0025] The wire cutting machine is an existing technology, which includes a moving table, a worktable and an electrode wire. The worktable consists of a worktable A 1 and a worktable B 11 that can slide longitudinally relative to each other. Each worktable has a stepped groove on its opposite side. The electrode wire is located between worktable A 1 and worktable B 11. The moving table can drive the worktable to move laterally. Through the lateral and longitudinal movement of the moving table and the worktable, the worktable can move within the stroke range of the electrode wire in the front, back and left and right directions.

[0026] The clamping plate assembly is located at the stepped groove of workbench A 1. It is used to clamp the head of the screw and make the screw shank perpendicular to workbench A 1. The screw shank protrudes from the clamping plate assembly to facilitate the cutting of the electrode wire. In order to fill the gap between the clamping plate assembly and workbench B 11, the position of the clamping plate assembly is clamped and fixed. A support plate 4 is provided between the clamping plate assembly and the stepped groove of workbench B 11. The position of the clamping plate assembly is fixed by the support plate 4 abutting against the outer end face of the clamping plate assembly.

[0027] The height of the clamping plate assembly is slightly higher than the depth of the stepped groove of workbench A 1, so that the pressure applied by the support plate 4 can be evenly transmitted to the clamping plate assembly. There are two support plates 4, which press against the two ends of the clamping plate assembly respectively.

[0028] The clamping plate assembly includes a reference plate 3 and a plug plate 31 with matching external dimensions. The reference plate 3 is used to unify the reference surfaces where the screw heads abut, so that the basic positions of their head end faces are consistent. Multiple plug holes 311 are staggered on the plug plate 31. The diameter of the plug holes 311 matches the diameter of the screw, and is used for the screw to pass through. There are two sets of plug holes 311, which are staggered vertically to effectively utilize the remaining space of the plug plate 31 and press in more screws.

[0029] In another embodiment, the clamping plate assembly includes an upper pressure plate 5 and a lower clamping seat 51. The lower clamping seat 51 is used to clamp the screw head and expose the screw. Multiple engagement grooves 511 matching the width of the screw head are provided at equal intervals on the lower clamping seat 51. A slot 512 matching the diameter of the screw is provided through the end face of the engagement groove 511 along the screw insertion path. The upper pressure plate 5 is used to prevent the screw head from coming out. Multiple pressure blocks 501 matching the engagement grooves 511 are provided at equal intervals on the lower end face of the upper pressure plate 5. The pressure blocks 501 are used to press down the screw head. Both ends of the upper pressure plate 5 and both ends of the lower clamping seat 51 are provided with lugs. The position can be fixed by passing a steel wire through the lug on the same side and wrapping it around, or by passing a bolt through the lug on the same side and connecting a nut at its bottom.

[0030] A magnetic suction part 2 is attached to the workbench 1. The magnetic suction part 2 is used to attach the clamping plate assembly. The magnetic suction part 2 is used to attach the reference plate 3. In another embodiment, the magnetic suction part 2 is used to attach the lower card holder 51 and the upper pressure plate 5.

[0031] The magnetic suction part 2 uses a magnet. In order for the clamping plate assembly to be attracted, the clamping plate assembly is made of ferromagnetic material, that is, carbon steel or alloy steel plate.

[0032] The working process of this example:

[0033] Insert the screws into the sockets 311 of the connector plate 31 in sequence, so that the screw protrudes from the sockets 311. Press the reference plate 3 and the screw head together so that they are parallel to the connector plate 31, so that the screw head is clamped between the reference plate 3 and the connector plate 31 to complete the fixing.

[0034] In another embodiment, the head of the screw is aligned with the engagement groove 511 in the lower retainer 51, the screw slides into the slot 512 and protrudes from the slot 512, the upper pressure plate 5 is pressed down so that the pressure block 51 abuts against the head of the screw, and the head of the screw is fixed. The connection between the upper pressure plate 5 and the lower retainer 51 is achieved by wrapping the same side lug with steel wire.

[0035] Place the clamping plate assembly in the center of workbench A1 and keep it close to the inner wall of the stepped groove so that the clamping plate assembly is parallel to workbench A1 and the exposed screw is perpendicular to workbench A1.

[0036] The magnetic suction part 2 is magnetically attracted to the workbench A 1, and its end face coincides with the stepped groove surface;

[0037] The end face of the magnetic suction part 2 is attracted to the center of the reference plate 3 to fix the position of the reference plate 3 and prevent it from shifting.

[0038] In another embodiment, the end face of the magnetic suction part 2 is attracted to the center of the lower card seat 51 and the upper pressure plate 5 to fix its position.

[0039] In one embodiment, the two support plates 4 are aligned with the two sides of the front end face of the plug-in plate 31. In another embodiment, the two support plates 4 are aligned with the two sides of the front end face of the lower clamping seat 51. By moving the B worktable 11 longitudinally, it is brought closer to the clamping plate assembly. The rear end of the support plate 4 is in close contact with the inner wall of the stepped groove of the B worktable 11, and its front end abuts against the front end face of the clamping plate assembly, thus fixing the position of the clamping plate assembly.

[0040] The screw is transported to the cutting position by moving the moving stage laterally and the worktable longitudinally. The corresponding wire cutting program is started. As the moving stage moves laterally, the electrode wire cuts the screw in sequence. The screw end without the screw head is then embedded, and the initial sample preparation process is completed.

[0041] The foregoing has described one or more embodiments of the present utility model in detail. However, the description is only a preferred embodiment of the present utility model and should not be considered as limiting the scope of the present utility model. All equivalent changes and improvements made within the scope of the claims of the present utility model should still fall within the patent coverage of the present utility model.

Claims

1. A wire cutting fixture for metallographic inspection of heat-treated non-magnetic aluminum alloy screw samples, characterized in that: The clamping plate group is arranged at the stepped groove of the wire cutting machine A workbench (1), and is used for clamping the head of a screw to make the screw rod perpendicular to the A workbench (1), the screw rod is exposed from the clamping plate group, and the support plate (4) is clamped between the clamping plate group and the stepped groove of the wire cutting machine B workbench (11), the position of the clamping plate group is fixed by abutting the support plate (4) against the clamping plate group.

2. The non-magnetic aluminum alloy screw heat treatment metallographic test sample linear cutting device according to claim 1, wherein: The clamping plate group comprises a reference plate (3) and a plug-in plate (31), and a plurality of plug-in holes (311) are arranged on the plug-in plate (31) in an interlaced manner and used for the screw rod to pass through.

3. The non-magnetic aluminum alloy screw heat treatment metallographic test sample linear cutting device according to claim 2, characterized in that: A magnetic attraction part (2) is adsorbed on the A workbench (1), and the magnetic attraction part (2) is used for adsorbing the reference plate (3).

4. The non-magnetic aluminum alloy screw heat treatment metallographic test sample linear cutting device according to claim 1, wherein: The support plate (4) is provided with two, and is respectively pressed on both sides of the front end face of the clamping plate group.

5. The non-magnetic aluminum alloy screw heat treatment metallographic test sample linear cutting device according to claim 1, wherein: the linear cutting device comprises a linear cutting machine, a workbench, a workpiece fixing device, a workpiece clamping device and a workpiece cooling device. The height of the clamping plate group is slightly higher than the depth of the stepped groove of the A workbench (1).

6. The non-magnetic aluminum alloy screw heat treatment metallographic test sample linear cutting device according to claim 2, characterized in that: The plug-in holes (311) are provided with two groups, and the two groups of plug-in holes (311) are arranged in an interlaced manner.

7. The non-magnetic aluminum alloy screw heat treatment metallographic test sample linear cutting device according to claim 3, characterized in that: The clamping plate group adopts a ferromagnetic material.

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