Special-shaped ejector pin machining jig

Abstract

The utility model relates to the technical field of electrical discharge machine jigs, in particular to a special-shaped ejector pin machining jig which comprises a bottom plate fixed on an electrical discharge machine table top, and a lower fixing plate and an upper fixing plate are sequentially arranged above the bottom plate. Wherein the bottom plate is detachably connected with the lower fixing plate, and a supporting structure is arranged between the lower fixing plate and the upper fixing plate; when in use, the machining jig can be directly mounted on the spark machine and can be repeatedly used. After the upper fixing plate and the lower fixing plate are used for positioning and supporting, the machining precision is improved, meanwhile, a plurality of mounting holes are formed in the whole jig so that special-shaped ejector pins of different sizes and shapes can be machined together, the machining number can be increased, and the machining time is greatly shortened; the supporting columns are detachably connected, so that the supporting columns with different heights can be replaced for special-shaped ejector pins with different heights, and the distance between the upper fixing plate and the lower fixing plate can be changed.

Description

Technical Field

[0001] The utility model relates to the technical field of spark machine jigs, in particular to a special-shaped ejector pin processing jig. Background Art

[0002] Spark machine is a kind of mechanical processing equipment, mainly used for electric spark machining. It is widely used in the manufacture of various metal molds and mechanical equipment. It is a special processing method that uses the electro-erosion effect generated by pulse discharge between two electrodes immersed in the working fluid to erode the conductive material, also known as discharge machining or electro-erosion machining.

[0003] In the prior art, when the spark machine is processing, a disk is generally placed on the machine table, and the parts to be processed are fixed and processed by magnetically sucking them on the disk, such as a precision metal mirror spark machine disclosed in Chinese patent announcement number "CN210306114U", which involves the field of mechanical manufacturing. The utility model includes a main body, a controller is arranged at one end of the main body, a disk is installed on the upper surface of the main body, a limit plate is installed on the upper end of the main body, side plates are installed at both ends of the limit plate, a back plate is installed on one side of the side plate, a cushion block is installed on the upper end of the back plate, and a first fixed block is installed on the upper end of the cushion block.

[0004] The special-shaped ejectors commonly used in spark machines are processed by attaching a single magnetic disk to the spark machine. Due to inaccurate fixation, low processing accuracy is easily caused. In addition, multiple different types of special-shaped ejectors can be processed at one time, so the processing efficiency is low. Utility Model Content

[0005] The utility model aims to solve the disadvantages of low processing precision due to inaccurate fixation when processing magnetic disks on a fireworks machine in the prior art, and proposes a special-shaped ejector pin processing jig.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A special-shaped ejector processing jig is designed, comprising a bottom plate fixed on a spark machine table, and a lower fixing plate and an upper fixing plate are sequentially arranged above the bottom plate;

[0008] Wherein, the bottom plate is detachably connected to the lower fixing plate, and a supporting structure is provided between the lower fixing plate and the upper fixing plate;

[0009] Mounting holes which are opposite to each other up and down are formed on the end surfaces of the lower fixing plate and the upper fixing plate, and the mounting holes are used for placing special-shaped ejector pins.

[0010] Furthermore, at least two insertion rods are provided at the diagonal sides of the bottom of the lower fixing plate, and a step hole is provided on the end surface of the bottom plate, and the insertion rods are inserted into the step hole.

[0011] Furthermore, a bolt is placed in the step hole, and the bolt is threadedly connected to the bottom of the insertion rod.

[0012] Furthermore, the support structure includes four support columns distributed between the lower fixed plate and the upper fixed plate, the bottom of the support column is connected to the lower fixed plate through a connecting structure, and the upper fixed plate is also provided with a fixing bolt, and the fixing bolt is threadedly connected to the top of the support column.

[0013] Furthermore, the connecting structure includes a positioning rod fixed to the lower fixed plate, and at least one positioning glass bead is embedded on the outer side of the positioning rod, wherein the bottom of the support column is plugged into the positioning rod, and a positioning hole for placing the telescopic end of the positioning glass bead is provided on the outer side of the support column.

[0014] Furthermore, it also includes a guide rod, wherein a plurality of guide rods are provided, and the bottom of the guide rod is threadedly connected to the bottom plate, and the top of the guide rod is sequentially penetrated by the lower fixing plate and the upper fixing plate.

[0015] Furthermore, the plurality of mounting holes are arranged in a plurality of rows of spaced portions, and the diameters of the plurality of mounting holes in each row are the same.

[0016] The utility model proposes a special-shaped ejector processing jig, which has the beneficial effect that the processing jig can be directly installed on the spark machine when in use and can be reused. The upper fixing plate and the lower fixing plate are used for positioning and supporting to improve the processing accuracy. At the same time, a plurality of mounting holes are provided on the entire jig so that special-shaped ejectors of different sizes and shapes can be processed together, which can increase the processing quantity and greatly reduce the processing time. In addition, the support column in the utility model adopts a detachable connection design. When it comes to special-shaped ejectors of different heights, the support columns of different heights can be replaced to change the spacing between the upper fixing plate and the lower fixing plate, complete the adaptation of the height of the special-shaped ejector, and improve the reliability and applicability of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

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

[0019] Figure 3 It is a top view of the utility model.

[0020] In the figure: 1. bottom plate; 11. step hole; 12. bolt; 2. lower fixing plate; 21. plug rod; 3. upper fixing plate; 4. supporting structure; 41. supporting column; 42. fixing bolt; 5. mounting hole; 6. connecting structure; 61. positioning rod; 62. positioning glass bead; 63. positioning hole; 7. guide rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-3 An embodiment of the utility model discloses a special-shaped ejector processing jig, which comprises a bottom plate 1 fixed on the spark machine table, and a lower fixing plate 2 and an upper fixing plate 3 are sequentially arranged above the bottom plate 1;

[0023] The bottom plate 1 is detachably connected to the lower fixing plate 2, and a supporting structure 4 is provided between the lower fixing plate 2 and the upper fixing plate 3;

[0024] Mounting holes 5 facing each other are formed on the end surfaces of the lower fixing plate 2 and the upper fixing plate 3 , and the mounting holes 5 are used to place special-shaped ejector pins.

[0025] In some embodiments, in the utility model, at least two insertion rods 21 are provided along the diagonals at the bottom of the lower fixed plate 2, and a step hole 11 is provided on the end face of the base plate 1. The insertion rods 21 are inserted into the step holes 11. The insertion rods 21 are used to provide a positioning function when the lower fixed plate 2 and the base plate 1 are aligned and connected. Of course, in order to improve the stability of positioning, in this embodiment, four matrixes of the above-mentioned insertion rods 21 can be set, and four step holes 11 are also adapted to be distributed.

[0026] Furthermore, in this embodiment, a bolt 12 is also placed in the step hole 11, and the bolt 12 is threadedly connected to the bottom of the insertion rod 21. That is, in this embodiment, the bolt 12 is used to fix the insertion rod 21 to complete the connection and fixation between the base plate 1 and the lower fixing plate 2.

[0027] In some embodiments, the support structure 4 includes four support columns 41 distributed between the lower fixed plate 2 and the upper fixed plate 3, the bottom of the support column 41 is connected to the lower fixed plate 2 through a connecting structure 6, and a fixing bolt 42 is also passed through the upper fixed plate 3, and the fixing bolt 42 is threadedly connected to the top of the support column 41.

[0028] The support column 41 is designed to form a certain distance between the upper fixing plate 3 and the lower fixing plate 2, so that the support of the special-shaped ejector pin can be achieved. Secondly, the support column 41 can be disassembled and replaced through the design of the fixing bolt 42 and the connecting structure 6, thereby improving the adaptability of the operation.

[0029] It should be noted that, in the above-mentioned embodiment, the length of the support column 41 can be adaptively changed by technicians in the relevant field, such as appropriately increasing or decreasing. The design purpose is to adapt to special-shaped ejectors of different lengths. In this way, the support column 41 is used to adjust the distance between the lower fixing plate 2 and the upper fixing plate 3 to complete the loading adaptation of the special-shaped ejector, ensuring that the top of the special-shaped ejector can protrude above the upper fixing plate 3 for easy processing.

[0030] On the basis of the above-mentioned embodiments, the connecting structure 6 in the utility model includes a positioning rod 61 fixed to the lower fixed plate 2, and at least one positioning glass bead 62 is embedded on the outer side of the positioning rod 61, wherein the bottom of the support column 41 is plugged into the positioning rod 61, and the outer side surface of the support column 41 has a positioning hole 63 for placing the telescopic end of the positioning glass bead 62, that is, in this embodiment, the support column 41 is fixed by snapping the positioning glass bead 62 with the positioning hole 63. The positioning glass bead 62 structure is a prior art and will not be described in detail here. When the support column 41 needs to be disassembled and replaced, the telescopic end of the positioning glass bead 62 can be pressed to disengage it from the positioning hole 63, and the disassembly and replacement of the support column 41 can be completed by removing the fixing bolt 42 on the upper fixed plate 3.

[0031] Furthermore, in the present embodiment, a guide rod 7 is also included, and a plurality of guide rods 7 are provided, and the bottom of the guide rod 7 is threadedly connected to the base plate 1, and the top thereof is sequentially penetrated by the lower fixed plate 2 and the upper fixed plate 3. Of course, in the present embodiment, the guide rod 7 and the support column 41 are matched, that is, when the support column 41 of the corresponding length is replaced, the corresponding guide rod 7 can also be replaced. The design purpose of the guide rod 7 is to install and align the lower fixed plate 2 and the upper fixed plate 3 to improve the convenience of installation.

[0032] Specifically, in the present embodiment, the plurality of mounting holes 5 are arranged in a plurality of rows of spaced portions, and the diameters of the plurality of mounting holes 5 in each row are the same. Special-shaped ejector pins of the same diameter can be installed in the mounting holes 5 in each row. Of course, in the present embodiment, some indication marks, such as diameter size marks, can also be provided on the lower fixing plate 2 and the upper fixing plate 3 for the convenience of users.

[0033] In summary, the processing jig can be directly installed on the spark machine when in use and can be reused. The upper fixing plate 3 and the lower fixing plate 2 are used for positioning and support to improve the processing accuracy. At the same time, a plurality of mounting holes 5 are provided on the entire jig so that various shaped ejectors of different sizes and shapes can be processed together, which can increase the processing quantity and greatly reduce the processing time. In addition, the support column 41 in the utility model adopts a detachable connection design. When it comes to shaped ejectors of different heights, the support columns 41 of different heights can be replaced to change the spacing between the upper fixing plate 3 and the lower fixing plate 2, complete the adaptation of the height of the shaped ejector, and improve the reliability and applicability of processing.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special-shaped ejector pin processing jig, comprising a bottom plate (1) fixed on a spark machine table, characterized in that: A lower fixing plate (2) and an upper fixing plate (3) are arranged in sequence above the bottom plate (1); Wherein, the bottom plate (1) and the lower fixing plate (2) are detachably connected, and a supporting structure (4) is provided between the lower fixing plate (2) and the upper fixing plate (3); Mounting holes (5) facing each other are provided on the end surfaces of the lower fixing plate (2) and the upper fixing plate (3), and the mounting holes (5) are used to place special-shaped ejector pins. Two insertion rods (21) are provided at least diagonally at the bottom of the lower fixing plate (2), and a step hole (11) is provided on the end surface of the bottom plate (1), and the insertion rod (21) is inserted into the step hole (11).

2. The special-shaped ejector pin processing jig according to claim 1, characterized in that: A bolt (12) is also placed in the step hole (11), and the bolt (12) is threadedly connected to the bottom of the insertion rod (21).

3. The special-shaped ejector pin processing tool according to claim 1, characterized in that: The support structure (4) comprises four support columns (41) distributed between the lower fixing plate (2) and the upper fixing plate (3); the bottom of the support column (41) is connected to the lower fixing plate (2) via a connecting structure (6); and fixing bolts (42) are also provided on the upper fixing plate (3); the fixing bolts (42) are threadedly connected to the tops of the support columns (41).

4. The special-shaped ejector pin processing jig according to claim 3, characterized in that: The connection structure (6) comprises a positioning rod (61) fixed to the lower fixing plate (2), and at least one positioning glass bead (62) is embedded on the outer side of the positioning rod (61), wherein the bottom of the support column (41) is plugged into the positioning rod (61), and a positioning hole (63) for accommodating the telescopic end of the positioning glass bead (62) is provided on the outer side surface of the support column (41).

5. The special-shaped ejector pin processing jig according to claim 1, characterized in that: It also comprises a guide rod (7), a plurality of the guide rods (7) are provided, the bottom of the guide rod (7) is threadedly connected to the bottom plate (1), and the top of the guide rod (7) is passed through the lower fixing plate (2) and the upper fixing plate (3) in sequence.

6. The special-shaped ejector pin processing jig according to claim 1, characterized in that: The plurality of mounting holes (5) are arranged in a plurality of rows of spaced portions, and the diameters of the plurality of mounting holes (5) in each row are the same.

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