Electric spark multi-workpiece machining tool

Abstract

The utility model relates to an electric spark multi-piece machining tool which comprises a base, connecting bodies arranged on the base and assembling holes formed in the connecting bodies. The base is integrally borne and connected with a machine tool; the connecting body comprises a first boss and a second boss; the first boss is connected to the upper end face of the base. The second boss is connected to the upper end face of the first boss. The area of the orthographic projection of the side wall contour of the connector in the assembling direction is smaller than that of the orthographic projection of the side wall contour of the special-shaped PIN top cover in the assembling direction; the outer diameter of the assembly hole is smaller than that of the special-shaped PIN connecting pin, so that the connecting pin can penetrate through the assembly hole for assembly. The connecting bodies for assembling the special-shaped PIN semi-finished products are arranged, and the side walls of the connecting bodies are consistent in machining clearance size and workpiece assembling direction, so that the equipment can carry out batch electric spark wire cutting machining on the semi-finished products on the connecting bodies in the same direction, and compared with a previous CNC one-by-one machining mode, the machining efficiency is improved, and the machining cost is reduced. And the processing efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric spark tooling, in particular to an electric spark multi-piece processing tooling. Background Art

[0002] like Figure 1 As shown, a special-shaped PIN needs to be processed in batches, and the dimensional accuracy and geometric tolerance requirements are relatively high (0.01mm). The structure of the special-shaped PIN includes a connecting pin 1 and a top cover 2. In the existing processing procedures, it is necessary to prepare cylindrical raw materials first. Then the cylindrical raw materials are placed in a lathe to turn the connecting pin, and the outer peripheral contour and inner groove 3 of the connecting pin are processed to obtain a semi-finished product. Finally, the semi-finished product is placed in a three-axis CNC machining machine, and the semi-finished product is milled, and the outer contour of the top cover is milled; then the semi-finished product is turned over and loaded, and the step 4 on the end face of the top cover adjacent to the connecting pin is processed. The semi-finished product can also be directly placed in a four-axis CNC machining machine to continuously process the outer contour and end face steps of the top cover. The processing process of the second half of the above-mentioned processing procedure is complicated, and batch loading and unloading is required, the production efficiency is low, and the production capacity cannot meet the delivery date required by the customer. If you want to further improve the production efficiency, you need to operate a four-axis machine tool, which requires high operator operation. Therefore, it is necessary to develop a batch production tool suitable for electric spark wire cutting to solve the above problems. Utility Model Content

[0003] Based on this, the utility model provides an electrospark multi-piece machining tool to solve the above problems.

[0004] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0005] An electrospark multi-piece machining tool comprises: a base, a connector arranged on the base, and an assembly hole arranged on the connector;

[0006] The base is used for overall bearing and connection with the machine tool;

[0007] The connector includes a first boss and a second boss; the first boss is connected to the upper end surface of the base; the second boss is connected to the upper end surface of the first boss; the area of ​​the positive projection of the side wall profile of the connector in the assembly direction is smaller than the area of ​​the positive projection of the side wall profile of the special-shaped PIN top cover in the assembly direction;

[0008] The outer diameter of the assembly hole is smaller than the outer diameter of the special-shaped PIN connecting pin, so that the connecting pin can pass through for assembly.

[0009] Furthermore, the connectors are arranged in a linear array on the base, and the assembly directions of the special-shaped PINs are consistent.

[0010] Furthermore, the connectors are symmetrically distributed on the base, and the assembly directions of the special-shaped PINs on both sides of the symmetry line are opposite, and the connecting pins of the special-shaped PINs are located on the inner side of the base.

[0011] Furthermore, the second boss is connected to the upper portion of the first boss along the center line of the first boss; and the width of the second boss is smaller than the width of the first boss.

[0012] Furthermore, it also includes a limiting component; the limiting component includes a limiting plate; the limiting plate has a limiting portion that allows it to be inserted into the groove in the special-shaped PIN connecting pin.

[0013] Furthermore, the center line of the limiting portion is aligned with the center line of the connecting body; and the width of the limiting portion is smaller than the width of the second boss.

[0014] Furthermore, the limiting assembly also includes a quick-release gasket; the quick-release gasket is connected to a buckle; the base is provided with a limiting groove that matches the quick-release gasket, and when the limiting plate is placed in the groove corresponding to the special-shaped PIN connecting pin, the quick-release gasket is inserted between the limiting plate and the limiting groove, thereby completing the rapid assembly of the limiting plate.

[0015] The beneficial effects of the utility model are:

[0016] The utility model arranges connectors for assembling special-shaped PIN semi-finished products, and the side walls of the connectors are processed to avoid air gaps. The assembly directions of the workpieces are consistent, so that the equipment can perform batch electric spark wire cutting processing on the semi-finished products on multiple connectors along the same direction. Compared with the previous CNC processing method one by one, the processing efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the special-shaped PIN in the background technology;

[0018] Figure 2 It is a schematic diagram of the overall structure of Example 1;

[0019] Figure 3 This is a schematic diagram of the structure of Example 1 after being equipped with a special-shaped PIN;

[0020] Figure 4 for Figure 3 A side view structural schematic diagram of;

[0021] Figure 5 It is a schematic diagram of the orthographic projection structure in the assembly surface direction of Example 1;

[0022] Figure 6 It is a schematic diagram of the overall structure of Example 2;

[0023] Figure 7 This is a schematic diagram of the explosion structure of Example 2.

[0024] 1. Connecting pin; 2. Top cover; 3. Inner groove; 4. Step; 10. Base; 11. Limiting groove; 20. Connecting body; 21. First boss; 22. Second boss; 30. Assembly hole; 40. Limiting assembly; 41. Limiting plate; 42. Limiting part; 43. Quick-release gasket; 44. Buckle. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0028] Embodiment 1:

[0029] like Figure 2-Figure 5 As shown, an electrospark multi-piece machining tool comprises a base 10, a connector 20 arranged on the base 10, and an assembly hole 30 arranged on the connector 20;

[0030] The base 10 is used for overall bearing and connection with the machine tool;

[0031] The connector 20 includes a first boss 21 and a second boss 22; the first boss 21 is connected to the upper end surface of the base 10; the second boss 22 is connected to the upper end surface of the first boss 21; the area of ​​the positive projection of the side wall profile of the connector 20 in the assembly direction is smaller than the area of ​​the positive projection of the side wall profile of the special-shaped PIN top cover 2 in the assembly direction; in this embodiment, the connector 20 is linearly arrayed on the base 10, and the assembly directions of the special-shaped PINs are consistent; the second boss 22 is connected to the upper part of the first boss 21 along the center line of the first boss 21; the width of the second boss 22 is smaller than the width of the first boss 21; specifically, the linear array is arranged in two rows and four columns; during processing, the equipment can perform batch electric spark wire cutting along the column number direction, process the side wall profile of the top cover 2 of all the special-shaped PINs on the column number, and then perform batch cutting processing on the steps 4 on the end surface of the top cover 2 of all the special-shaped PINs adjacent to the connecting pin 1 along the row number direction, which greatly increases the processing efficiency;

[0032] The outer diameter of the assembly hole 30 is smaller than the outer diameter of the special-shaped PIN connecting pin 1 , so that the connecting pin 1 can pass through for assembly.

[0033] The above-mentioned processing tooling is provided with connectors 20 for assembling special-shaped PIN semi-finished products, and the side walls of the connectors 20 are processed to avoid air gaps. The assembly directions of the workpieces are consistent, so that the equipment can perform batch electric spark wire cutting processing on the semi-finished products on multiple connectors 20 along the same direction. Compared with the previous CNC processing method one by one, the processing efficiency is greatly improved.

[0034] Embodiment 2:

[0035] like Figure 6-Figure 7 As shown, this embodiment is substantially the same as the embodiment 1, except that, since the hole position is positioned only by the assembly hole 30 and the connecting pin 1 of the special-shaped PIN, during the electric spark wire cutting process, the vibration caused by the processing will cause the positioning to loosen, thereby affecting the processing accuracy. For this reason, in this embodiment, a limiting component 40 is also included; the limiting component 40 includes a limiting plate 41; the limiting plate 41 has a limiting portion 42 that allows it to be inserted into the groove 3 in the special-shaped PIN connecting pin 1, and after assembly, the special-shaped PIN can be axially positioned, thereby ensuring that the workpiece is stationary during processing; in order to achieve processing avoidance, the center line of the limiting portion 42 is aligned with the center line of the connecting body 20; the width of the limiting portion 42 is less than the width of the second boss 22, which plays a role in processing avoidance;

[0036] In order to achieve processing avoidance, the limiting part 42 is inserted from bottom to top into the inner groove 3 of the connecting pin 1 for fixing. Since the special-shaped PINs are all assembled axially, the limiting component 40 must be staggered first during insertion. After the special-shaped PIN is fully inserted into the connector 20, the limiting piece 41 is raised upward to improve assembly efficiency. Furthermore, the limiting component 40 also includes a quick-release gasket 43; a buckle 44 is connected to the quick-release gasket 43; a limiting groove 11 matching the quick-release gasket 43 is provided on the base 10. When the limiting piece 41 is placed in correspondence with the inner groove 3 of the special-shaped PIN connecting pin 1, the quick-release gasket 43 is inserted between the limiting piece 41 and the limiting groove 11, thereby completing the quick assembly of the limiting piece 41;

[0037] Since loading the limit assembly 40 requires digging out corresponding supporting grooves on the base 10, the overall volume of the tooling will be increased. When the top cover 2 of the special-shaped PIN is symmetrical around the center, the space can be further reduced. At this time, the connector 20 is symmetrically distributed on the base 10, and the assembly directions of the special-shaped PINs on both sides of the symmetry line are opposite. The connecting pin 1 of the special-shaped PIN is located on the inner side of the base 10, so that the inner groove 3 of the connecting pin 1 of the special-shaped PIN is set in the middle of the base 10, which can save the setting space of the limit assembly 40.

[0038] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An electrospark multi-piece machining tool, characterized in that: include: A base, a connector arranged on the base, and an assembly hole arranged on the connector; The base is used for overall bearing and connection with the machine tool; The connector includes a first boss and a second boss; the first boss is connected to the upper end surface of the base; the second boss is connected to the upper end surface of the first boss; the area of ​​the positive projection of the side wall profile of the connector in the assembly direction is smaller than the area of ​​the positive projection of the side wall profile of the special-shaped PIN top cover in the assembly direction; The outer diameter of the assembly hole is smaller than the outer diameter of the special-shaped PIN connecting pin, so that the connecting pin can pass through for assembly.

2. The multi-piece EDM tooling according to claim 1, characterized in that: The connectors are arranged in a linear array on the base, and the assembly directions of the special-shaped PINs are consistent.

3. The multi-piece EDM tooling according to claim 1, characterized in that: The connectors are symmetrically distributed on the base, and the assembly directions of the special-shaped PINs on both sides of the symmetry line are opposite, and the connecting pins of the special-shaped PINs are located on the inner side of the base.

4. The multi-piece EDM tooling according to claim 1, characterized in that: The second boss is connected to the upper portion of the first boss along the center line of the first boss; and the width of the second boss is smaller than the width of the first boss.

5. An electrospark multi-piece machining tool according to any one of claims 1, 2 or 3, characterized in that: It also includes a limiting component; the limiting component includes a limiting plate; the limiting plate has a limiting portion that allows it to be snapped into the groove in the special-shaped PIN connecting pin.

6. The multi-piece EDM tooling according to claim 5, characterized in that: The center line of the limiting portion is aligned with the center line of the connecting body; and the width of the limiting portion is smaller than the width of the second boss.

7. The multi-piece EDM tooling according to claim 5, characterized in that: The limiting assembly also includes a quick-release gasket; a buckle is connected to the quick-release gasket; a limiting groove that matches the quick-release gasket is provided on the base, and when the limiting piece is placed in the groove corresponding to the special-shaped PIN connecting pin, the quick-release gasket is inserted between the limiting piece and the limiting groove, thereby completing the rapid assembly of the limiting piece.

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