Cutter holder electric spark tool

Abstract

The electric spark tool comprises a clamp base body, a positioning block and a pressing assembly, a plurality of arc-shaped grooves are formed in the upper end face of the clamp base body, and the cutter holders are arranged at the two ends of the arc-shaped grooves; positioning blocks are arranged on the two sides of the arc-shaped groove, and the edges of the inner sides of the positioning blocks are pressed above the cutter base. The pressing assembly comprises a wedge-shaped block and a jacking screw, a vertically-through guide hole is formed in the position, located at the rear end of the cutter holder, of the arc-shaped groove, the wedge-shaped block is slidably arranged in the guide hole, a screw hole is formed in the side wall of the clamp base body and communicates with the guide hole, the jacking screw is in threaded connection with the screw hole, and one end of the jacking screw stretches into the guide hole to abut against the inclined face of the wedge-shaped block. The puller screw is screwed inwards, the puller screw extrudes the inclined surface of the wedge block, and the wedge block is driven to ascend along the guide hole to flatten and press the cutter holder; after machining is completed, the puller screw is screwed outwards, the wave spring pushes the wedge-shaped block to descend along the guide hole, and then the cutter holder can be pulled out easily.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment processing; specifically, the utility model relates to a cutter seat electric spark tooling. Background Art

[0002] The cutter block is the main part connected to the CNC cutting machine. There are usually holes or slots on the cutter block for mounting and fixing it to the workbench of the machine. The main function of the cutter block is to fix and support the cutting tool to ensure the stability and accuracy of the tool during the cutting process.

[0003] At present, as the strength and hardness of the materials used for the cutter seat have been improved, and the processing of the cutter seat is relatively complicated, the existing basic lathe cannot process it, so the electric spark method is used for processing. Now, a tooling that can clamp the cutter seat and be used for electric spark processing is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a cutter seat electric spark tooling, which can solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a cutter block electric spark tool, wherein the cutter block electric spark tool comprises:

[0006] A fixture base, wherein the upper end surface of the fixture base is provided with a plurality of arc grooves, the two ends of the plurality of arc grooves are provided with the cutting seat, the rear end of the cutting seat is located in the arc groove, and the front end of the cutting seat extends out of the arc groove to the outside of the fixture base;

[0007] Positioning blocks, which are arranged on both sides of the arc-shaped groove, and the inner edges of the positioning blocks are pressed above the cutting seat;

[0008] A clamping assembly, the clamping assembly includes a wedge block and a tightening screw, the arc-shaped groove is located at the rear end of the cutting seat and is provided with a guide hole that passes through up and down, the wedge block is slidably arranged in the guide hole, the side wall of the clamp base is provided with a screw hole, the screw hole is connected to the guide hole, the tightening screw is threadedly connected to the screw hole, and one end extends into the guide hole to abut against the inclined surface of the wedge block.

[0009] In the cutter seat EDM tooling as described above, optionally, the guide hole is divided into an upper guide hole and a lower guide hole, the diameter of the upper guide hole is smaller than the diameter of the lower guide hole, a push rod is slidably arranged in the upper guide hole, and the upper end surface of the wedge block is fixedly connected to the lower end surface of the push rod.

[0010] In the aforementioned cutter block EDM tooling, optionally, the push rod and the wedge block are integrally formed.

[0011] In the aforementioned cutter block EDM tooling, optionally, a wave spring is provided between the upper end surface of the wedge block and the inner top wall of the lower guide hole.

[0012] In the aforementioned cutter block EDM tooling, optionally, a set screw is provided at the lower end portion of the lower guide hole.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] According to the electric spark tooling of the cutter seat of the utility model, the rear end of the cutter seat is placed in the arc groove of the fixture base, the positioning block is installed, and the tightening screw is screwed inward, the tightening screw squeezes the inclined surface of the wedge block, drives the wedge block to rise along the guide hole to flatten and tighten the cutter seat. After the processing is completed, the tightening screw is screwed outward, and the wave spring pushes the wedge block to descend along the guide hole, and the cutter seat can be easily pulled out. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the electric spark tooling of the cutting tool holder of the utility model;

[0016] Figure 2 It is a front view of the electric spark tooling of the cutting knife seat of the utility model;

[0017] Figure 3 for Figure 2 Sectional view of AA.

[0018] In the figure: 1. clamp base; 2. positioning block; 3. cutter seat; 4. arc groove; 5. wedge block; 6. tightening screw; 7. ejector rod; 8. wave spring; 9. set screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that, in the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. The terms "first", "second" and similar words used in the description of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components, and therefore cannot be understood as limitations on the present invention.

[0021] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0022] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0023] Figure 1 The three-dimensional diagram of the electric spark tooling of the cutting tool holder of the utility model is shown in the figure, which includes a cutting fixture base 1, a positioning block 2, a pressing assembly and a cutting tool holder 3, etc.

[0024] like Figure 1-3 As shown, the rear end of the cutter seat 3 is semi-cylindrical. The upper end surface of the fixture base 1 is provided with a plurality of arc grooves 4, and the cutter seats 3 are provided at both ends of the plurality of arc grooves 4. The rear end of the cutter seat 3 is located in the arc groove 4, and the front end of the cutter seat 3 extends out of the arc groove 4 to the outside of the fixture base 1, that is, each arc groove 4 can hold two cutter seats 3. Positioning blocks 2 are provided on both sides of the arc groove 4, and the inner edge of the positioning block 2 is pressed on the top of the cutter seat 3. The clamping assembly includes a wedge block 5 and a tightening screw 6. The arc groove 4 is provided at the rear end of the cutter seat 3 with a guide hole that passes through from top to bottom, and a wedge block 5 is slidably provided in the guide hole. A screw hole is provided on the side wall of the fixture base 1, and the screw hole is connected to the guide hole. The tightening screw 6 is threadedly connected to the screw hole, and one end extends into the guide hole to abut against the inclined surface of the wedge block 5.

[0025] When in use, place the rear end of the cutter seat 3 in the arc groove 4 of the fixture base 1, install the positioning block 2, and screw the jacking screw 6 inwards. The jacking screw 6 squeezes the inclined surface of the wedge block 5, driving the wedge block 5 to rise along the guide hole to flatten and press the cutter seat 3. After the processing is completed, screw the jacking screw 6 outwards, and the wave spring 8 pushes the wedge block 5 down along the guide hole, and the cutter seat 3 can be easily pulled out.

[0026] Furthermore, the guide hole is divided into an upper guide hole and a lower guide hole. The diameter of the upper guide hole is smaller than that of the lower guide hole. A push rod 7 is slidably arranged in the upper guide hole. The upper end surface of the wedge block 5 is fixedly connected to the lower end surface of the push rod 7, and the push rod 7 and the wedge block 5 are integrally formed. In addition, a wave spring 8 is provided between the upper end surface of the wedge block 5 and the inner top wall of the lower guide hole.

[0027] Specifically, when the tightening screw 6 is screwed inward, the tightening screw 6 squeezes the inclined surface of the wedge block 5 and drives the wedge block 5 and the push rod 7 to rise, flatten and tighten the cutter seat 3, and the wave spring 8 contracts. When the tightening screw 6 is screwed outward, the wave spring 8 rebounds, driving the wedge block 5 and the push rod 7 to descend rapidly.

[0028] Furthermore, a set screw 9 is provided at the lower end of the lower guide hole to prevent the wedge block 5 from falling out of the lower guide hole. In addition, a weight-removing hole is provided on the fixture base 1 to reduce the weight of the entire fixture.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutter seat electric spark tool, the rear end of the cutter seat (3) is semi-cylindrical, characterized in that: The cutter block electric spark tooling comprises: A clamp base (1), wherein the upper end surface of the clamp base (1) is provided with a plurality of arc-shaped grooves (4), the two ends of the plurality of arc-shaped grooves (4) are provided with the cutter seats (3), the rear end of the cutter seat (3) is located in the arc-shaped groove (4), and the front end of the cutter seat (3) extends out of the arc-shaped groove (4) to the outside of the clamp base (1); Positioning blocks (2), the positioning blocks (2) being arranged on both sides of the arc-shaped groove (4), and the inner edges of the positioning blocks (2) being pressed on the top of the cutting seat (3); A clamping assembly, the clamping assembly includes a wedge block (5) and a clamping screw (6), the arc groove (4) is located at the rear end of the cutting seat (3) and is provided with a guide hole that passes through the upper and lower parts, the wedge block (5) is slidably arranged in the guide hole, the side wall of the clamp base (1) is provided with a screw hole, the screw hole is connected to the guide hole, the clamping screw (6) is threadedly connected to the screw hole, and one end of the screw extends into the guide hole to abut against the inclined surface of the wedge block (5).

2. The cutter stand EDM tooling according to claim 1, characterized in that: The guide hole is divided into an upper guide hole and a lower guide hole. The diameter of the upper guide hole is smaller than that of the lower guide hole. A push rod (7) is slidably arranged in the upper guide hole. The upper end surface of the wedge block (5) is fixedly connected to the lower end surface of the push rod (7).

3. The cutter head EDM tooling as claimed in claim 2, characterized in that: The push rod (7) and the wedge block (5) are integrally formed.

4. The cutter head EDM tooling as claimed in claim 2, characterized in that: A wave spring (8) is provided between the upper end surface of the wedge block (5) and the inner top wall of the lower guide hole.

5. The cutter head electric spark tooling as claimed in claim 4, characterized in that: A set screw (9) is arranged at the lower end of the lower guide hole.

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