Tool for symmetrically machining holes and grooves in sleeve part through wire cutting

Abstract

The utility model relates to a sleeve type part wire cutting symmetrical hole groove machining tool which comprises a base, a transverse insertion groove is formed in the base, an installation block capable of being inserted into the transverse insertion groove after rotating by 90 degrees is installed in the transverse insertion groove, and a positioning locking structure of the installation block is arranged on the base. And a pair of clamping blocks which can slide oppositely and are locked are arranged at the front end of the mounting block. The tool is suitable for clamping sleeve type workpieces for side wall grooving machining.

Description

Technical Field

[0001] The utility model relates to a tool for symmetrically processing hole grooves of sleeve parts through line cutting. Background Art

[0002] Currently, glass lenses generally require a sleeve to hold the mold core in place for production. Exhaust grooves must be machined symmetrically at 90 degrees on the sleeve to ensure stable exhaust and, consequently, stable lens formation.

[0003] Because rod-shaped workpieces are difficult to clamp and symmetry must be ensured, traditional vise clamps or three-jaw indexing plate clamps cannot meet the requirements of light and convenient clamping of wire cutting machines, and excessively large clamps are extremely detrimental to the processing and tooling of workpieces. Utility Model Content

[0004] The utility model aims to provide a tool for line cutting symmetrically processing hole grooves of sleeve-type parts. The tool is suitable for clamping sleeve-type workpieces for side wall groove processing.

[0005] The technical solution of the present utility model is: a tool for wire cutting symmetrical hole groove processing of sleeve-type parts, comprising a base, a transverse slot is provided on the base, a mounting block is installed in the transverse slot and can be rotated 90° and then inserted into the transverse slot, a positioning and locking structure of the mounting block is provided on the base, and a pair of clamping blocks that can slide towards each other and be locked are provided at the front end of the mounting block.

[0006] Furthermore, a connecting portion extending backward is provided at the lower portion of the rear end of the base, and a longitudinal slot for passing a fixing bolt is provided on the connecting portion.

[0007] Furthermore, the positioning locking structure includes a positioning plate fixed on the base and located at the rear end of the transverse slot, a longitudinal positioning hole is provided at the rear of the mounting block, a longitudinal pin hole corresponding to the longitudinal positioning hole and for the positioning pin to pass through is provided on the base, and a vertical pin hole corresponding to the longitudinal positioning hole after the mounting block is rotated 90° is provided on the base.

[0008] Furthermore, a pair of longitudinal positioning holes is provided on the rear portion of the mounting block, and a pair of longitudinal latch holes and a pair of vertical latch holes are provided on the base.

[0009] Furthermore, the positioning locking structure includes a positioning plate fixed on the base and located at the rear end of the transverse slot, the rear part of the mounting block is provided with a longitudinal positioning hole and a vertical positioning hole, the base is penetrated by a longitudinal pin hole, and a positioning pin is installed that passes through the longitudinal positioning hole or passes through the vertical positioning hole after the mounting block is rotated 90°.

[0010] Furthermore, a pair of longitudinal pin holes are formed through the base, and a pair of longitudinal positioning holes and a pair of vertical positioning holes are provided at the rear of the mounting block.

[0011] Furthermore, the cross-sectional surfaces of the transverse slot and the mounting block are both square, and chamfers are provided at the four corners of the mounting block.

[0012] Furthermore, the upper and lower parts of the front end of the mounting block are vertically provided with T-slots, a limiting portion is provided between the two T-slots, and both sides of the clamping block are provided with sliding portions that cooperate with the T-slots.

[0013] Furthermore, a pair of vertical long slots are provided in the longitudinal direction of the clamping block, and locking bolts threadedly connected to the mounting block are passed through the vertical long slots in the transverse direction.

[0014] Furthermore, matching trapezoidal recesses are provided on adjacent end faces of a pair of clamping blocks, V-shaped grooves are provided on end faces of the clamping blocks away from the trapezoidal recesses, and avoidance through holes are provided between the trapezoidal recesses and the V-shaped grooves.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] This compact fixture can be used as a fixture for securing sleeve-type parts with diameters between 10 and 40 mm on wire-cut and fine-hole EDM machines, facilitating sidewall grooving of sleeve-type parts. It also enables repeated positioning and 90-degree rotation of the workpiece, while being easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 (Large sleeve clamping);

[0018] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0019] Figure 3 It is a top view schematic diagram of the utility model;

[0020] Figure 4 This is a schematic structural diagram of a small sleeve of the utility model being clamped on a pair of clamping blocks;

[0021] In the figure: 1-workpiece 10-base 11-transverse slot 12-connecting part 13-longitudinal long slot 14-positioning plate 15-longitudinal pin hole 16-vertical pin hole 20-mounting block 21-T-slot 22-limiting part 23-longitudinal positioning hole 30-clamping block 31-sliding part 32-vertical long slot 33-locking bolt 34-trapezoidal recess 35-V-slot 36-avoidance through hole 40-positioning pin. DETAILED DESCRIPTION

[0022] To make the above features and advantages of the present invention more clearly understood, embodiments are given below with reference to the accompanying drawings for detailed description, but the present invention is not limited thereto.

[0023] refer to Figures 1 to 4

[0024] A tool for symmetrically machining slots in sleeve-like parts using wire cutting includes a base 10 with a transverse slot 11. A mounting block 20 is mounted within the slot. The mounting block can be removed from the slot and rotated 90° before being reinserted. The base includes a positioning and locking mechanism for the mounting block, thereby achieving positional locking. A pair of clamping blocks 30 are provided at the front end of the mounting block, which can slide toward each other and lock together, thereby clamping the sleeve.

[0025] In this embodiment, in order to facilitate the installation of the base on the processing machine, a connecting portion 12 extending backward is provided at the lower rear end of the base, and a longitudinal long groove 13 for passing a fixing bolt is provided on the connecting portion so that it can be fixed on the processing machine by the fixing bolt.

[0026] In this embodiment, in order to achieve the positioning and locking of the mounting block, the positioning and locking structure includes a positioning plate 14 fixed on the base, and the positioning plate is located at the rear end of the transverse slot for abutting against the rear end of the mounting block. Both side ends of the positioning plate are penetrated by locking bolts screwed to the base to achieve locking; a pair of longitudinal positioning holes 23 are provided at the rear of the mounting block, and a pair of longitudinal pin holes 15 corresponding to the longitudinal positioning holes are provided on the base, so that the positioning pin 40 passes through the longitudinal pin hole 15 and the longitudinal positioning hole 21; a pair of vertical pin holes 16 are also provided on the base, so that after the mounting block is rotated 90°, it corresponds to the longitudinal positioning hole and penetrates the positioning pin 30 to achieve the positioning and locking of the mounting block.

[0027] In another embodiment, in order to achieve positioning locking of the mounting block, the positioning locking structure includes a positioning plate 14 fixed on the base, and the positioning plate is located at the rear end of the transverse slot for abutting against the rear end of the mounting block. Both side ends of the positioning plate are penetrated by locking bolts screwed to the base to achieve locking; the rear part of the mounting block is provided with a pair of longitudinal positioning holes and a pair of vertical positioning holes, and the base is penetrated by a pair of longitudinal pin holes, and positioning pins passing through the longitudinal positioning holes are installed in the longitudinal pin holes, or the positioning pins pass through the longitudinal pin holes and the vertical positioning holes after the mounting block is rotated 90°, thereby achieving positioning locking of the mounting block.

[0028] In this embodiment, the cross-sectional surfaces of the transverse slot and the mounting block are both square, so that the mounting block can be reinserted into the transverse slot after being rotated 90°; chamfers are provided at the four corners of the mounting block to better insert the mounting block into the transverse slot.

[0029] In this embodiment, a hollow portion is provided on the mounting block, thereby reducing the weight of the mounting block.

[0030] In this embodiment, in order to adjust the spacing between the clamping blocks, T-slots 21 are vertically provided on the upper and lower parts of the front end of the mounting block, and a limiting portion 22 is provided between the two T-slots. Both sides of the clamping block are provided with sliding portions 31 that protrude outward and cooperate with the T-slots.

[0031] In this embodiment, to lock the clamping block, a pair of vertical slots 32 are provided along the longitudinal direction of the clamping block. Locking bolts 33 are passed through the slots and are threaded into the mounting block. After the clamping block is clamped against the sleeve, the locking bolts are rotated to lock the clamping block and the mounting block.

[0032] In this embodiment, matching trapezoidal recesses 34 are provided on the adjacent end faces of a pair of clamping blocks for clamping sleeves with larger diameters; V-grooves 35 are provided on the end faces of the clamping blocks away from the trapezoidal recesses so that the clamping blocks can be rotated 180° and installed back into the T-grooves for clamping sleeves with smaller diameters.

[0033] In this embodiment, in order to allow the fine-hole discharge machine to vertically process the clamped portion of the sleeve after the mounting block rotates 90°, a vertical through-hole evasion hole 36 is provided on the clamping block between the trapezoidal recess and the V-shaped groove.

[0034] When using this tool:

[0035] 1. The distance between the clamping blocks 30 can be adjusted to clamp sleeve-type workpieces of different diameters (for smaller diameters, the clamping blocks 30 can be rotated 180° to position the workpiece using the V-groove);

[0036] 2. Then use locking bolts 33 to lock the workpiece and clamping block 30 to the mounting block 20 (if the clamping is not secure, you can reinforce it by gluing points 502 in the V-groove);

[0037] 3. Install the mounting block 20 onto the base 10 fixed to the machine tool. After the rear end of the mounting block 20 contacts the positioning plate 14 and stops moving, insert the positioning pin 40 into the base 10. This allows you to start machining in one direction.

[0038] 4. After processing in one direction, pull out the positioning pin 40, pull out the mounting block 20 that fixes the workpiece, rotate it 90 degrees and then insert the mounting block 20 into the base 10. After the rear end of the mounting block 20 hits the positioning plate 14 and cannot be pushed, insert the positioning pin 40. In this way, the workpiece can be rotated 90 degrees and positioned vertically again based on the previous processing.

[0039] Because of the presence of the positioning plate 14 and the positioning pin 40 , as long as the multiple mounting blocks 20 are at the same height, the base 10 can be fixed on the machine tool, and the mounting blocks 20 that fix the workpiece can be repeatedly switched to continue working.

[0040] Unless otherwise stated, any numerical range disclosed for any technical solution disclosed in the present invention is a preferred numerical range. Those skilled in the art should understand that a preferred numerical range is merely a numerical range that provides a more significant or representative technical effect among a wide range of practicable values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, only some numerical values ​​are disclosed in the present invention to illustrate the technical solution of the present invention. Furthermore, the numerical values ​​listed above should not be construed as limiting the scope of protection of the present invention.

[0041] If words such as "first" and "second" are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of description to distinguish between components. Unless otherwise stated, the above words have no special meaning.

[0042] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0043] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0044] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0045] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A tool for symmetrically machining holes and grooves in sleeve-type parts by wire cutting, comprising a base, characterized in that: The base is provided with a transverse slot, in which a mounting block is installed that can be rotated 90° and then inserted into the transverse slot. The base is provided with a positioning and locking structure for the mounting block, and the front end of the mounting block is provided with a pair of clamping blocks that can slide toward each other and be locked.

2. The tooling for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 1 is characterized in that: A connecting portion extending backward is provided at the lower portion of the rear end of the base, and a longitudinal long slot for passing a fixing bolt is provided on the connecting portion.

3. The tooling for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 1 or 2, characterized in that: The positioning and locking structure includes a positioning plate fixed on the base and located at the rear end of the transverse slot, a longitudinal positioning hole is provided at the rear of the mounting block, a longitudinal latch hole corresponding to the longitudinal positioning hole and for the positioning pin to pass through is provided on the base, and a vertical latch hole corresponding to the longitudinal positioning hole after the mounting block is rotated 90° is provided on the base.

4. The tooling for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 3 is characterized in that: A pair of longitudinal positioning holes is provided on the rear portion of the mounting block, and a pair of longitudinal latch holes and a pair of vertical latch holes are provided on the base.

5. The tool for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 1 or 2, characterized in that: The positioning and locking structure includes a positioning plate fixed on the base and located at the rear end of the transverse slot. A longitudinal positioning hole and a vertical positioning hole are provided at the rear of the mounting block. A longitudinal pin hole is penetrated on the base, and a positioning pin is installed that passes through the longitudinal positioning hole or passes through the vertical positioning hole after the mounting block is rotated 90°.

6. The tooling for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 5, characterized in that: A pair of longitudinal pin holes are passed through the base, and a pair of longitudinal positioning holes and a pair of vertical positioning holes are arranged at the rear of the mounting block.

7. The tool for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 1, 2, 4 or 6, characterized in that: The cross-sectional surfaces of the transverse slot and the mounting block are both square, and chamfers are provided at the four corners of the mounting block.

8. The tooling for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 1, characterized in that: The upper and lower parts of the front end of the mounting block are vertically provided with T-slots, a limiting part is provided between the two T-slots, and both sides of the clamping block are provided with sliding parts that match the T-slots.

9. The tool for symmetrically machining holes and grooves of sleeve-type parts by wire cutting according to claim 1 or 8, characterized in that: A pair of vertical long slots are arranged in the longitudinal direction of the clamping block, and locking bolts threadedly connected with the mounting block are passed through the vertical long slots in the transverse direction.

10. The tool for symmetrically machining holes and grooves of sleeve parts by wire cutting according to claim 1, characterized in that: Matching trapezoidal recesses are provided on adjacent end surfaces of a pair of clamping blocks, V-shaped grooves are provided on end surfaces of the clamping blocks away from the trapezoidal recesses, and avoidance through holes are provided between the trapezoidal recesses and the V-shaped grooves.

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