Special wire cutting tool clamp for gasket cutting

Abstract

The utility model relates to a special wire cutting tool clamp for gasket cutting, which comprises a bottom plate and is technically characterized in that a blank supporting block is arranged on the front portion of the upper surface of the bottom plate, two ends of the upper surface of the blank supporting block are fixedly connected with the bottom plate, and a plurality of circular placing grooves are formed in the middle of the upper surface of the blank supporting block at intervals along the Y direction. A transmission mechanism is arranged on the rear portion of the upper surface of the bottom plate, a left transmission plate and a right transmission plate which relatively move in the X direction are connected to the upper portion of the transmission mechanism, the left transmission plate and the right transmission plate are provided with a left chuck and a right chuck, the left chuck is provided with a plurality of continuous first trough-shaped half clamping grooves, and the right chuck is provided with second trough-shaped half clamping grooves in one-to-one correspondence with the first trough-shaped half clamping grooves. The first trough-shaped half clamping groove and the second trough-shaped half clamping groove are buckled oppositely to form clamping and positioning spaces, and the clamping and positioning spaces correspond to the circular containing grooves one to one and are located over the circular containing grooves. According to the clamp, the problem of poor positioning performance of blanks is solved, and rotation displacement in the machining process is avoided, so that the machining precision and the product quality are guaranteed, and meanwhile, the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerospace parts processing and manufacturing technology, specifically to a wire EDM fixture for gasket cutting. Background Technology

[0002] The gasket is a structural component with a hexagonal inner contour, used in aero engines. It has strict requirements for machining accuracy, so direct molding is difficult and the part cannot meet the requirements for the inner hexagonal dimensions. Therefore, it is generally necessary to first make a blank, and then form the hexagonal inner contour at the center of the blank by wire cutting. However, the positioning of the blank is not good, which can easily cause the blank to rotate and shift, which is not conducive to ensuring machining accuracy. It also requires a high level of operator skill and has low processing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a reasonably structured and reliable wire EDM fixture for gasket cutting, which solves the problem of poor positioning of the blank, avoids rotational displacement during processing, thereby ensuring processing accuracy and product quality, and improving processing efficiency.

[0004] The technical solution of this utility model is:

[0005] A wire EDM fixture for washer cutting includes a base plate. The key technical features are: a blank support block is provided at the front of the upper surface of the base plate; the upper surfaces of the blank support block are fixed to the base plate at both ends; a plurality of circular placement grooves are spaced apart along the Y direction at the center of the upper surface; a transmission mechanism is provided at the rear of the upper surface of the base plate, and a left transmission plate and a right transmission plate that move relative to each other along the X direction are connected above the transmission mechanism; a left chuck and a right chuck are provided on the side of the left and right transmission plates facing the blank support block; the lower surfaces of the left and right chucks are in contact with the upper surface of the blank support block; a plurality of consecutive first trough-shaped semi-clamping grooves are provided on the side of the left chuck facing the right chuck; and a second trough-shaped semi-clamping groove is provided on the right chuck, corresponding one-to-one with each of the first trough-shaped semi-clamping grooves. The first and second trough-shaped semi-clamping grooves interlock to form a clamping and positioning space, which corresponds one-to-one with the circular placement grooves and is located directly above them.

[0006] The aforementioned wire EDM fixture for washer cutting includes a mounting groove at the rear of the base plate. The transmission mechanism includes an X-axis transmission screw supported in the mounting groove, a left helical segment and a right helical segment on the X-axis transmission screw, a left thread sleeve on the left helical segment, and a right thread sleeve on the right helical segment. The left and right helical segments rotate in opposite directions. The left transmission plate is fixedly connected to the left thread sleeve, and the right transmission plate is fixedly connected to the right thread sleeve.

[0007] The aforementioned wire EDM fixture for washer cutting has guide rails on the front and rear side walls of the mounting groove that cooperate with the left and right transmission plates.

[0008] The aforementioned wire EDM fixture for washer cutting has a cutting clearance hole concentric with the bottom surface of the circular placement groove.

[0009] The beneficial effects of this utility model are:

[0010] 1. When using, place the washer blank in the circular placement groove, and use the transmission mechanism to drive the left and right chucks to move towards each other, so that the first and second trough-shaped semi-clamping grooves of the left and right chucks interlock and clamp the outer circumference of the washer blank. The positioning speed is fast and the positioning effect is good, which solves the problem of poor positioning of the blank and avoids rotational displacement during processing, thereby ensuring processing accuracy and product quality.

[0011] 2. Multiple washer blanks can be clamped at once, which significantly improves processing efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Base plate, 2. X-axis transmission screw, 3. Guide rail, 4. Left transmission plate, 5. Right transmission plate, 6. Blank support block, 7. Left chuck, 8. First trough-shaped semi-clamping groove, 9. Circular placement groove, 10. Second trough-shaped semi-clamping groove, 11. Right chuck. Detailed Implementation

[0014] The present invention will be described in detail with reference to the accompanying drawings.

[0015] like Figure 1 As shown, the wire EDM fixture for washer cutting includes a base plate 1.

[0016] The upper surface of the base plate 1 is provided with a blank support block 6 at the front. The two ends of the upper surface of the blank support block 6 are connected and fixed to the base plate 1. The middle of the upper surface is provided with a plurality of circular placement grooves 9 arranged at intervals along the Y direction.

[0017] The rear part of the upper surface of the base plate 1 is provided with a transmission mechanism, and a left transmission plate 4 and a right transmission plate 5 that move relative to each other in the X direction are connected above the transmission mechanism. In this embodiment, the rear part of the base plate 1 is provided with a mounting groove. The transmission mechanism includes an X-direction transmission screw 2 supported in the mounting groove, a left helical segment and a right helical segment provided on the X-direction transmission screw 2, a left threaded sleeve provided on the left helical segment, and a right threaded sleeve provided on the right helical segment. The left and right helical segments rotate in opposite directions. The left transmission plate 4 is connected and fixed to the left threaded sleeve, and the right transmission plate 5 is connected and fixed to the right threaded sleeve. The front and rear sidewalls of the mounting groove are provided with guide rails 3 that cooperate with the left transmission plate 4 and the right transmission plate 5.

[0018] The left transmission plate 4 and right transmission plate 5 are provided with a left chuck 7 and a right chuck 11 facing the blank support block 6. The lower surfaces of the left chuck 7 and right chuck 11 are in contact with the upper surface of the blank support block 6. The left chuck 7 has a series of first trough-shaped semi-clamping grooves 8 facing the right chuck. The right chuck 11 has second trough-shaped semi-clamping grooves 10 that correspond one-to-one with each of the first trough-shaped semi-clamping grooves 8. The first trough-shaped semi-clamping grooves 8 and the second trough-shaped semi-clamping grooves 10 interlock to form a clamping and positioning space. The clamping and positioning space corresponds one-to-one with the circular placement groove 9 and is located directly above the circular placement groove 9. The bottom surface of the circular placement groove 9 has a cutting avoidance hole concentric with it.

[0019] Operation process:

[0020] In use, multiple gasket blanks to be processed are placed in each of the circular placement slots 9.

[0021] Rotating the X-axis drive screw 2 causes the left and right threaded sleeves to move the left and right drive plates towards each other, thereby causing the left chuck 7 and right chuck 11 to move towards each other. This causes the first and second trough-shaped semi-clamping grooves 8 and 10 of the left and right chucks to interlock and clamp the gasket blanks on their outer periphery, achieving rapid positioning. After positioning, each gasket blank is wire-cut.

[0022] After cutting, rotate the X-axis drive screw 2 in the opposite direction so that the left chuck 7 and the right chuck 11 move in opposite directions, releasing the positioning of the part and allowing it to be quickly removed.

[0023] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A gasket cutting special line cutting tooling fixture comprising a base plate, characterized by: The upper surface of the base plate is provided with a blank support block at the front. The upper surface of the blank support block is fixed to the base plate at both ends. The middle of the upper surface is provided with a plurality of circular placement slots arranged at intervals along the Y direction. The upper surface of the base plate is provided with a transmission mechanism, and a left transmission plate and a right transmission plate that move relative to each other along the X direction are connected above the transmission mechanism. The left transmission plate and the right transmission plate are provided with a left chuck and a right chuck facing the blank support block. The lower surfaces of the left chuck and the right chuck are in contact with the upper surface of the blank support block. The left chuck is provided with a plurality of continuous first trough-shaped semi-clamping slots facing the right chuck. The right chuck is provided with a second trough-shaped semi-clamping slot that corresponds one-to-one with each of the first trough-shaped semi-clamping slots. The first trough-shaped semi-clamping slots and the second trough-shaped semi-clamping slots interlock to form a clamping and positioning space. The clamping and positioning space corresponds one-to-one with the circular placement slots and is located directly above the circular placement slots.

2. The gasket cutting tooling fixture for gasket cutting specific to a part as claimed in claim 1, wherein: The base plate has a mounting groove at the rear. The transmission mechanism includes an X-direction transmission screw supported in the mounting groove, a left helical segment and a right helical segment on the X-direction transmission screw, a left threaded sleeve on the left helical segment, and a right threaded sleeve on the right helical segment. The left and right helical segments rotate in opposite directions. The left transmission plate is connected and fixed to the left threaded sleeve, and the right transmission plate is connected and fixed to the right threaded sleeve.

3. The gasket cutting tooling fixture for gasket cutting specific to a part as claimed in claim 2, wherein: The front and rear sidewalls of the mounting groove are provided with guide rails that cooperate with the left and right transmission plates.

4. The gasket cutting tooling fixture of claim 1, wherein: The bottom surface of the circular placement slot is provided with a cutting avoidance hole concentric with it.

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