Ejector pin fixing and machining jig

Abstract

The utility model relates to the technical field of ejector pin machining, in particular to an ejector pin fixing and machining jig which comprises a base, an upper fixing plate and a lower fixing plate are sequentially arranged on the top of the base, and a supporting piece is arranged between the upper fixing plate and the lower fixing plate. Wherein the end face of the upper fixing plate and the end face of the lower fixing plate are provided with corresponding inserting holes used for containing the ejector pin, a fastening piece used for fixing is arranged between the lower fixing plate and the base, more stable supporting can be provided for the ejector pin, the length of the supporting piece and the length of the adjusting rod can be selected according to the requirement of the ejector pin, and therefore the ejector pin can be more stably supported. The lower fixing plate and the base can be quickly fixed under the action of the clamping part after the ejector pin is fixed, so that the replacement speed of the ejector pin can be increased, normal use of the spark machine cannot be affected by a tedious replacement mode, and the spark machine is simple in structure, easy and convenient to operate and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of thimble processing, in particular to a thimble fixing and processing fixture. Background Technique

[0002] A spark machine, also known as an electric discharge machining tool or an electric discharge forming machine, is a device that uses the principle of electric discharge to machine metals. Its thimble is one of the key components connecting the high-voltage coil and the spark plug. The main function of the thimble of the spark machine is to transfer the high-voltage current to the central electrode of the spark plug, generate a spark to ignite the combustible mixture, and thus drive the normal operation of the automobile engine.

[0003] Therefore, in order to facilitate the processing and production of thimbles for spark machines, it is necessary to fix the thimbles with the help of a thimble fixing and processing fixture. For example, the Chinese patent publication number "CN110900247A" in the prior art discloses a processing method for simultaneous processing of multiple thimbles. The method includes: fixing a number of thimble processing materials to the fixture lock through the first through hole, the second through hole and the bottom plate; positioning the fixture lock; generating an XYZ three-axis coordinate system in the numerical control machine tool control system, and generating a three-dimensional form of the fixture lock and the thimble processing material in the XYZ three-axis coordinate system; assembling the three-dimensional form generated in the numerical control machine tool control system, and at the same time moving the assembled three-dimensional form of the fixture lock and the thimble processing material to the initial processing position; importing the thimble finished product parameters into the numerical control machine tool control system, and the control system controls the numerical control machine tool to sequentially process each thimble processing material on the fixture lock starting from the initial processing position. The present invention adopts the above design, enabling multiple thimbles to be processed at one time, extending the one-time processing cycle, and enabling one technician to operate multiple devices simultaneously, greatly improving the production efficiency.

[0004] The fixture for fixing the thimble usually has a base for fixing the whole, and a mounting plate is provided on the top of the base. However, in specific operations, considering that it is not convenient to disassemble and assemble between most mounting plates and the base, this will cause great inconvenience in replacing thimbles of different lengths, and then will also affect the normal use of the spark machine, with poor practicability. Content of the Utility Model

[0005] The purpose of the present utility model is to solve the above-mentioned disadvantages in the prior art that the base and the mounting plate are not convenient for disassembly and assembly, which affects the thimble replacement efficiency, and to propose a thimble fixing and processing fixture.

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

[0007] Design a thimble fixing and processing fixture, including a base, an upper fixing plate and a lower fixing plate are sequentially arranged on the top of the base, and a support member is arranged between the upper fixing plate and the lower fixing plate;

[0008] Among them, corresponding jacks for accommodating the ejector pins are provided on the end faces of the upper fixing plate and the lower fixing plate, and fasteners for fixing are provided between the lower fixing plate and the base.

[0009] Further, the support member includes an adjusting rod. Step holes are provided in a vertically opposite manner at the corners between the upper fixing plate and the lower fixing plate, and a locking bolt is movably connected in the step holes. Both ends of the adjusting rod are respectively arranged in the step holes on both sides and are threadedly connected to the locking bolt.

[0010] Further, positioning grooves are provided on the end faces of the upper fixing plate and the lower fixing plate between the step holes on adjacent sides, and positioning columns are provided in the positioning grooves. The bottom of the positioning column is threadedly connected to the positioning groove, and its top is slidably connected to another positioning groove.

[0011] Further, the fastener includes a plug-in portion fixedly installed on one side of the top of the base. A plug-in groove is provided on the side surface of the lower fixing plate, and the plug-in portion and the plug-in groove are slidably connected.

[0012] Further, an installation groove is provided at the top of the inner wall of the plug-in groove. A connecting rod is slidably connected in the installation groove. One end of the bottom of the connecting rod is fixedly connected with a fixing column and is sleeved with a spring. Both ends of the spring are respectively fixedly connected with the installation groove and the side surface of the fixing column. A fixing hole is provided at the top of the plug-in portion, and the fixing column can be inserted into the fixing hole.

[0013] Further, an unlocking member is provided at the top of the connecting rod. A through groove is provided in the unlocking member and is rotatably connected to the connecting rod through the through groove. When the unlocking member rotates, one end close to the rotation axis can abut against the lower fixing plate.

[0014] The ejector pin fixing and processing jig proposed by the present utility model has the beneficial effects that: through the support member, the present utility model can provide more stable support for the ejector pin. The lengths of the support member and the adjusting rod can be selected according to the requirements of the ejector pin to ensure that sufficient supporting force can be provided. And by the action of the clamping portion, after the ejector pin is fixed, the lower fixing plate and the base can be quickly fixed, which can not only speed up the replacement speed of the ejector pin, but also not affect the normal use of the spark machine due to the cumbersome replacement method. The structure is simple, the operation is convenient, and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural view of the present utility model;

[0016] Figure 2 is a sectional view of the present utility model;

[0017] Figure 3 This is a schematic structural view of the fastener of the present utility model;

[0018] Figure 4 This is a sectional view of the fastener of the present utility model.

[0019] In the figure: 1, base; 2, upper fixing plate; 3, lower fixing plate; 4, support member; 41, adjusting rod; 42, stepped hole; 43, locking bolt; 44, positioning groove; 45, positioning post; 5, jack; 6, fastener; 61, insertion part; 62, insertion groove; 63, installation groove; 64, connecting rod; 65, fixing post; 66, spring; 67, fixing hole; 68, unlocking member. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0021] Referring to Figures 1-4 , the thimble fixing and processing jig includes a base 1, an upper fixing plate 2 and a lower fixing plate 3 are sequentially arranged on the top of the base 1, and a support member 4 is arranged between the upper fixing plate 2 and the lower fixing plate 3;

[0022] Among them, corresponding jacks 5 for accommodating thimbles are opened on the end faces of the upper fixing plate 2 and the lower fixing plate 3, and a fastener 6 for fixing is arranged between the lower fixing plate 3 and the base 1.

[0023] It should be added that there are several rows of the jacks 5, and several rows of the jacks 5 are arranged in alignment, and the diameter of each row of the jacks 5 increases or decreases row by row, so that different thimbles can be placed within the diameter range of the jacks 5.

[0024] Furthermore, the support member 4 includes an adjusting rod 41, stepped holes 42 are arranged oppositely up and down at the corners between the upper fixing plate 2 and the lower fixing plate 3, and a locking bolt 43 is movably connected in the stepped holes 42. The two ends of the adjusting rod 41 are respectively arranged in the stepped holes 42 on both sides and are threadedly connected with the locking bolt 43.

[0025] Still further, positioning grooves 44 are opened between the stepped holes 42 on the adjacent sides of the end faces of the upper fixing plate 2 and the lower fixing plate 3, and positioning posts 45 are arranged in the positioning grooves 44. The bottom of the positioning post 45 is threadedly connected with the positioning groove 44, and its top is slidably connected with another positioning groove 44.

[0026] It is worth mentioning that, through the stepped holes 42 on both sides arranged relatively up and down, the adjusting rod 41 can be fixed by the locking bolt 43. The advantage is that a certain distance is formed between the upper fixing plate 2 and the lower fixing plate 3, which is convenient for supporting the ejector pin.

[0027] Among them, the positioning post 45 provides a positioning function when the upper fixing plate 2 and the lower fixing plate 3 are connected in alignment.

[0028] More specifically, the fastener 6 includes a plug-in portion 61 fixedly installed on one side of the top of the base 1. A plug-in groove 62 is formed on the side surface of the lower fixing plate 3, and the plug-in portion 61 is slidably connected to the plug-in groove 62.

[0029] Generally speaking, a mounting groove 63 is formed at the top of the inner wall of the plug-in groove 62. A connecting rod 64 is slidably connected in the mounting groove 63. One end of the bottom of the connecting rod 64 is fixedly connected with a fixing column 65 and sleeved with a spring 66. The two ends of the spring 66 are respectively fixedly connected with the side surfaces of the mounting groove 63 and the fixing column 65. A fixing hole 67 is formed at the top of the plug-in portion 61, and the fixing column 65 can be inserted into the fixing hole 67.

[0030] Finally, an unlocking member 68 is arranged at the top of the connecting rod 64. A through groove is formed in the unlocking member 68 and the unlocking member 68 is rotatably connected to the connecting rod 64 through the through groove. When the unlocking member 68 rotates, one end close to the rotation axis can abut against the lower fixing plate 3.

[0031] It is worth mentioning that both the plug-in portion 61 and the plug-in groove 62 are in a T-shaped structure. By means of plug-in fixation, the clamping efficiency of the ejector pin is improved.

[0032] Among them, when the unlocking member 68 is in a flat state, the fixing column 65 is inserted into the fixing hole 67 under the support of the spring 66. The advantage is that after the upper fixing plate 2 and the lower fixing plate 3 clamp the ejector pin, they form an integral body by using the adjusting rod 41 and are disassembled and assembled with the base 1, which is convenient for replacing the ejector pin.

[0033] In addition, when the unlocking member 68 is flipped, the unlocking member 68 rotates in a circular motion with the rotation axis as the center. Due to the fact that one end close to the rotation axis abuts against the base 1, the connecting rod 64 is pulled up by the pulling force generated by the abutment and the top end of the connecting rod 64 is arranged in the through groove to avoid jamming, and then the fixing column 65 is driven to disengage from the fixing hole 67, achieving the function of disassembling the base 1.

[0034] Working mode; during operation, select a suitable adjusting rod 41 and positioning post 45 according to the length of the ejector pin to be processed. After fixing the positioning post 45, use the guiding function of the positioning post 45 to fix the adjusting rod 41 through the locking bolt 43;

[0035] Then push the base 1 so that the insertion part 61 is inserted into the insertion slot 62, and the fixing post 65 is inserted into the fixing hole 67 under the support of the spring 66 to achieve the fixing effect;

[0036] Finally, rotate the unlocking member 68. When the unlocking member 68 rotates, the end thereof abuts against the base 1, and the connecting rod 64 is pulled up by the pulling force generated by the abutment, so that the fixing post 65 is disengaged from the fixing hole 67 for unlocking.

[0037] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A pin fixing processing jig, comprising a base (1), characterized in that: An upper fixing plate (2) and a lower fixing plate (3) are sequentially arranged on the top of the base (1), and a support member (4) is arranged between the upper fixing plate (2) and the lower fixing plate (3); Wherein, the end surfaces of the upper fixing plate (2) and the lower fixing plate (3) are provided with corresponding insertion holes (5) for accommodating ejector pins, and a fastener (6) for fixing is provided between the lower fixing plate (3) and the base (1).

2. The ejector pin fixing processing jig according to claim 1, characterized in that: The support member (4) comprises an adjusting rod (41), a stepped hole (42) is provided at a corner between the upper fixing plate (2) and the lower fixing plate (3) in an upward and downward manner, and a locking bolt (43) is movably connected in the stepped hole (42), and two ends of the adjusting rod (41) are respectively arranged in the stepped holes (42) on both sides and are threadedly connected to the locking bolt (43).

3. The ejector pin fixing processing jig according to claim 2, characterized in that: The end surfaces of the upper fixing plate (2) and the lower fixing plate (3) are provided with positioning grooves (44) between the step holes (42) on the adjacent two sides, and positioning columns (45) are provided in the positioning grooves (44). The bottom of the positioning column (45) is threadedly connected to the positioning groove (44), and the top of the positioning column (45) is slidably connected to another positioning groove (44).

4. The ejector pin fixing processing jig according to claim 1, characterized in that: The fastener (6) comprises a plug-in portion (61) fixedly mounted on one side of the top of the base (1), a plug-in slot (62) is provided on the side of the lower fixing plate (3), and the plug-in portion (61) and the plug-in slot (62) are slidably connected.

5. The ejector pin fixing processing jig according to claim 4, characterized in that: The top of the inner wall of the plug-in slot (62) is provided with a mounting slot (63), a connecting rod (64) is slidably connected in the mounting slot (63), one end of the bottom of the connecting rod (64) is fixedly connected to a fixing column (65) and is sleeved with a spring (66), the two ends of the spring (66) are respectively fixedly connected to the side of the mounting slot (63) and the fixing column (65), and a fixing hole (67) is provided at the top of the plug-in portion (61), and the fixing column (65) can be plugged into the fixing hole (67).

6. The ejector pin fixing processing jig according to claim 5, characterized in that: A unlocking member (68) is provided at the top of the connecting rod (64), a through slot is provided in the unlocking member (68), and the unlocking member (68) is rotatably connected to the connecting rod (64) through the through slot. When the unlocking member (68) rotates, one end thereof close to the rotation axis can contact the lower fixing plate (3).

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