Anti-vibration tool for processing flake graphite electrode

Abstract

The utility model relates to the technical field of machining process equipment, in particular to an anti-vibration tool for machining a flake graphite electrode. Comprising a base, a clamping device arranged on the base and used for clamping a flake graphite electrode, a pair of telescopic mechanisms arranged on the base and arranged on the left side and the right side of the clamping device respectively, telescopic rods arranged on the telescopic mechanisms, and ejector pin seat plates arranged at the front ends of the telescopic rods of the telescopic mechanisms. The elastic ejector pins are elastically arranged on the ejector pin base plate and used for elastically abutting against one face of the flake graphite electrode, and the ejector pin fixing and locking device is used for fixing and locking the elastic ejector pins after the elastic ejector pins elastically abut against one face of the flake graphite electrode. The processing vibration of the flake graphite electrode can be reduced, and the processing quality and the production efficiency of the flake graphite electrode are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing process equipment technical field, concretely relates to a kind of anti-vibration tooling for sheet graphite electrode processing. BACKGROUND

[0002] In the manufacturing process of injection mold, the processing of injection mold cavity surface is involved. Due to the particularity of the shape of the injection mold cavity surface, graphite electrodes are usually used for electrical discharge machining of the injection mold cavity surface. In order to ensure the machining accuracy of the injection mold cavity surface, the graphite electrode needs to be pre-processed into a special sheet shape. Therefore, the machining of the graphite electrode needs to be carried out on a numerical control machining machine.

[0003] However, for the sheet-shaped graphite electrode, due to the thin thickness of the graphite electrode, vibration is easily caused during cutting machining, which affects the roughness of the graphite electrode and ultimately affects the quality of the electrical discharge machining of the injection mold cavity surface. In addition, if the cutting force is too large during the machining of the graphite electrode, it may cause the fracture of the sheet graphite electrode; if a very small cutting amount is used, the production efficiency of the graphite electrode machining will be greatly reduced. SUMMARY

[0004] To solve the above problems, the utility model provides an anti-vibration tooling for sheet graphite electrode machining, which aims to reduce the machining vibration of the sheet graphite electrode and improve the quality and production efficiency of the sheet graphite electrode machining. The specific technical solution is as follows:

[0005] An anti-vibration tooling for sheet graphite electrode machining, comprising a base, a clamping device for clamping the sheet graphite electrode arranged on the base, a pair of extension mechanisms arranged on the base and positioned on the left and right sides of the clamping device, an extension rod arranged on the extension mechanism, a thimble seat plate arranged at the front end of the extension rod of the extension mechanism, a plurality of elastic thimbles arranged on the thimble seat plate for elastically abutting against one side of the sheet graphite electrode, and a thimble fixing and locking device for fixing and locking the elastic thimbles after they elastically abut against the one side of the sheet graphite electrode.

[0006] As one of the preferred solutions of the extension mechanism in the utility model, the extension mechanism is a gas cylinder, and the thimble seat plate is fixedly arranged at the front end of the extension rod of the gas cylinder.

[0007] As the second preferred solution of the extension mechanism in the utility model, the extension mechanism is a servo cylinder, and the thimble seat plate is fixedly arranged at the front end of the extension rod of the servo cylinder.

[0008] The utility model discloses a plurality of elastic ejector pins are arranged on the ejector pin seat plate, and the elastic ejector pin is arranged on the ejector pin positioning hole of the ejector pin seat plate.

[0009] Preferably, the rear end of the ejector pin seat plate is provided with a limiting plate, a plurality of limiting holes are arranged on the limiting plate, the rear end of the elastic ejector pin is provided with a guide rod, the guide rod passes through the limiting hole on the limiting plate and is connected with a limiting screw, and the top pressing spring is arranged on the outer circle of the guide rod.

[0010] Preferably, the ejector pin fixing and locking device comprises a guide sleeve arranged in the limiting hole of the limiting plate, an annular groove is arranged on the outer circle of the guide sleeve, thereby forming an annular oil storage cavity between the limiting hole of the limiting plate and the outer circle of the annular groove of the guide sleeve, and forming an elastic thin wall between the inner hole of the guide sleeve and the outer circle of the annular groove, oil inlet channels are arranged on the limiting plate and are connected with the annular oil storage cavity, each oil inlet channel is connected with an oil supply main pipe through a high-pressure hose, and the oil supply main pipe is connected with an oil pressure system.

[0011] Preferably, the two ends of the guide sleeve are sealingly welded with the hole openings of the limiting holes of the limiting plate.

[0012] In the utility model, the telescopic rod on the telescopic mechanism is fixedly connected with the limiting plate at the rear end of the ejector pin seat plate.

[0013] Preferably, the telescopic rod on the telescopic mechanism is a horizontal telescopic rod.

[0014] Preferably, the ejector pin positioning holes are arranged on the ejector pin seat plate.

[0015] In the utility model, the clamping device comprises a clamping seat fixed on the base, a positioning groove arranged on the clamping seat, and a clamping screw arranged on the side of the positioning groove of the clamping seat.

[0016] In the utility model, the base is fixedly provided with a height block, and the telescopic mechanism is integrally installed on the height block.

[0017] The typical use method of the utility model is as follows:

[0018] (1) fixed installation of the tooling: install and fix the anti-vibration tooling for processing the flaky graphite electrode on the workbench of the electric spark numerical control processing machine tool;

[0019] (2) initial position setting of the telescopic mechanism: open a pair of telescopic mechanisms, so that the telescopic rods of the pair of telescopic mechanisms are all retreated to the initial limit position.

[0020] (3) Workpiece installation: install the sheet graphite electrode into the positioning groove of the clamping seat, and fix it using the clamping screw;

[0021] (4) Auxiliary reinforcement: open the left telescopic mechanism in the pair of telescopic mechanisms, the telescopic rod of the left telescopic mechanism moves forward by a certain distance, so that the front ends of the elastic pins on the pin seat plate elastically abut on the left side of the sheet graphite electrode, after being in place, the oil pressure system is opened, the high-pressure oil of the oil pressure system pressurizes the hydraulic oil in the annular oil storage cavity through the oil supply manifold, the high-pressure hose and the oil inlet channel in turn, under the action of the high-pressure oil, the elastic thin wall of the guide sleeve elastically deforms, clamps and fixes the guide rod at the rear end of the elastic pin, and locking of the elastic pin is realized;

[0022] (5) Right side surface machining of the electrode: the electric spark numerical control machining tool is opened, and the cutting tool is used to machine the right side surface of the sheet graphite electrode;

[0023] (6) Telescopic mechanism reversing: after the right side surface machining of the sheet graphite electrode is completed, the telescopic rod reversing of the pair of telescopic mechanisms is driven to make the telescopic rod of the left telescopic mechanism retreat to leave space for left machining, and the telescopic rod of the right telescopic mechanism advances, so that the front ends of the elastic pins on the pin seat plate of the right telescopic mechanism elastically abut on the right side of the sheet graphite electrode, after being in place, the oil pressure system is driven, the high-pressure oil of the oil pressure system pressurizes the hydraulic oil in the annular oil storage cavity through the oil supply manifold, the high-pressure hose and the oil inlet channel in turn, under the action of the high-pressure oil, the elastic thin wall of the guide sleeve elastically deforms, clamps and fixes the guide rod at the rear end of the elastic pin, and locking of the elastic pin is realized;

[0024] (7) Left side surface machining of the electrode: the electric spark numerical control machining tool is opened, and the cutting tool is used to machine the left side surface of the sheet graphite electrode.

[0025] The steps (4) to (7) can be circularly executed to realize rough machining, semi-finishing and finishing of the two side surfaces of the sheet graphite electrode.

[0026] The utility model discloses the beneficial effects are:

[0027] First, the utility model discloses a kind of anti-vibration tooling for sheet graphite electrode processing, using the elastic pin of special setting abuts on one side of sheet graphite electrode, can auxiliary reinforcement the deformation resistance of sheet graphite electrode, reduce the processing vibration of sheet graphite electrode, improve the quality and production efficiency of sheet graphite electrode processing.

[0028] Second, the utility model discloses a kind of anti-vibration tooling for sheet graphite electrode processing, a pair of telescopic mechanism is divided into the two sides of sheet graphite electrode, can realize the alternate machining of the two side surfaces of sheet graphite electrode, and its production efficiency is high, and processing quality is good.

[0029] Third, the utility model of a kind of anti-vibration tool for flaky graphite electrode processing, ejector pin fixed locking device can be disposable to realize the simultaneous locking of all elastic ejector pins, and its operating efficiency is high. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure schematic view of a kind of anti-vibration tool for flaky graphite electrode processing of the utility model;

[0031] Figure 2 It is Figure 1 Partial enlarged view.

[0032] In the drawing: 1, base, 2, flaky graphite electrode, 3, clamping device, 4, telescopic mechanism, 5, telescopic rod, 6, ejector pin base plate, 7, elastic ejector pin, 8, ejector pin fixed locking device, 9, ejector pin positioning hole, 10, ejector spring, 11, limit plate, 12, limit hole, 13, guide rod, 14, limit screw, 15, guide sleeve, 16, annular groove, 17, annular oil storage cavity, 18, elastic thin wall, 19, oil inlet channel, 20, high-pressure hose, 21, oil supply main pipe, 22, oil pressure system, 23, clamping seat, 24, positioning groove, 25, clamping screw, 26, height block, 27, cutting tool. DETAILED DESCRIPTION

[0033] The specific embodiments of the utility model are further described below in combination with the drawings and examples. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0034] As Figures 1 to 2 shown is an embodiment of a kind of anti-vibration tool for flaky graphite electrode processing of the utility model, including base 1, be set up on the base 1 for clamping flaky graphite electrode 2 clamping device 3, be set up on the base 1 and be divided into a pair of telescopic mechanism 4 in the clamping device 3 left and right two sides position, telescopic rod 5 is set up on the telescopic mechanism 4, ejector pin base plate 6 is set up in the telescopic mechanism 4 telescopic rod 5 front end, a plurality of number interval arrangement elastic ejector pin 7 is elastically set up in the ejector pin base plate 6 for elastically pushing flaky graphite electrode 2 one side, after the elastic ejector pin 7 elastically pushes flaky graphite electrode 2 one side, the elastic ejector pin 7 is fixed and locked by ejector pin fixed locking device 8.

[0035] As one of the preferred schemes of telescopic mechanism in the embodiment, the telescopic mechanism 4 is air cylinder, and the ejector pin base plate 6 is fixedly arranged at the front end of the telescopic rod of the air cylinder.

[0036] As the second preferred solution of the telescopic mechanism in the embodiment, the telescopic mechanism 4 is a servo cylinder, and the ejector seat plate 6 is fixedly arranged at the front end of the telescopic rod of the servo cylinder.

[0037] In the embodiment, a plurality of ejector pin positioning holes 9 are arranged on the ejector seat plate 6, and the elastic ejector pin 7 is movably arranged on the ejector pin positioning hole 9 and elastically abuts against one side of the flaky graphite electrode 2 through the abutting spring 10.

[0038] Preferably, a limiting plate 11 is arranged at the rear end of the ejector seat plate 6, a plurality of limiting holes 12 are arranged on the limiting plate 11, a guide rod 13 is arranged at the rear end of the elastic ejector pin 7, the guide rod 13 passes through the limiting hole of the limiting plate 11 and is connected with a limiting screw 14, and the abutting spring 10 is arranged on the outer circle of the guide rod 13 in the ejector pin positioning hole 9 of the ejector seat plate 6.

[0039] Preferably, the ejector pin fixing and locking device 8 comprises a guide sleeve 15 arranged in the limiting hole 12 of the limiting plate 11, an annular groove 16 is arranged on the outer circle of the guide sleeve 15, thereby forming an annular oil storage cavity 17 between the limiting hole 12 of the limiting plate 11 and the outer circle of the annular groove 16 of the guide sleeve 15, and forming an elastic thin wall 18 between the inner hole of the guide sleeve 15 and the outer circle of the annular groove 16, an oil inlet channel 19 is arranged on the limiting plate 11 and is connected with the annular oil storage cavity 17, each oil inlet channel 19 is connected with an oil supply main pipe 21 through a high-pressure hose 20, and the oil supply main pipe 21 is connected with an oil pressure system 22.

[0040] Preferably, the two ends of the guide sleeve 15 are sealingly welded with the hole openings of the limiting hole 12 of the limiting plate 11.

[0041] In the embodiment, the telescopic rod 5 of the telescopic mechanism 4 is fixedly connected with the limiting plate 11 at the rear end of the ejector seat plate 6.

[0042] Preferably, the telescopic rod 5 of the telescopic mechanism 4 is a horizontal telescopic rod.

[0043] Preferably, the ejector pin positioning holes 9 are arranged on the ejector seat plate 6.

[0044] In the embodiment, the clamping device 3 comprises a clamping seat 23 fixed on the base 1, a positioning groove 24 arranged on the clamping seat 23, and a clamping screw 25 arranged on the side of the positioning groove 24 of the clamping seat 23.

[0045] In the embodiment, a height block 26 is fixedly arranged on the base 1, and the telescopic mechanism 4 is integrally mounted on the height block 26.

[0046] The typical use method of the embodiment is as follows:

[0047] (1) Fixed installation of the tooling: install and fix the anti-vibration tooling for processing the sheet graphite electrode to the worktable of the electric spark numerical control machining machine tool;

[0048] (2) Initial position setting of the telescopic mechanism: turn on the pair of telescopic mechanisms 4, so that the telescopic rods 5 of the pair of telescopic mechanisms 4 are all retreated to the initial limit position;

[0049] (3) Workpiece installation: install the sheet graphite electrode 2 to the positioning groove 24 of the clamping seat 23, and fix it using the clamping screw 25;

[0050] (4) Auxiliary reinforcement: turn on the left telescopic mechanism in the pair of telescopic mechanisms 4, and the telescopic rod of the left telescopic mechanism is moved forward by a certain distance, so that the front ends of the elastic pins 7 on the pin seat plate 6 are elastically attached to the left side of the sheet graphite electrode 2, and after being in place, turn on the oil pressure system 22, and the high-pressure oil of the oil pressure system 22 is sequentially added to the hydraulic oil in the annular oil storage cavity 17 through the oil supply main pipe 21, the high-pressure hose 20 and the oil inlet channel 19, and under the action of the high-pressure oil, the elastic thin wall 18 of the guide sleeve 15 is elastically deformed to clamp and fix the guide rod 13 at the rear end of the elastic pin 7, so as to realize the locking of the elastic pin 7;

[0051] (5) Right side surface processing of the electrode: turn on the electric spark numerical control machining machine tool, and use the cutting tool 27 to process the right side surface of the sheet graphite electrode 2;

[0052] (6) Telescopic mechanism reversing: after the right side surface processing of the sheet graphite electrode 2 is completed, drive the telescopic rods 5 of the pair of telescopic mechanisms 4 to reverse, so that the telescopic rod of the left telescopic mechanism is retreated to leave space for left side processing, and the telescopic rod of the right telescopic mechanism is advanced, so that the front ends of the elastic pins 7 on the pin seat plate 6 of the right telescopic mechanism are elastically attached to the right side of the sheet graphite electrode 2, and after being in place, drive the oil pressure system 22, and the high-pressure oil of the oil pressure system 22 is sequentially added to the hydraulic oil in the annular oil storage cavity 17 through the oil supply main pipe 21, the high-pressure hose 20 and the oil inlet channel 19, and under the action of the high-pressure oil, the elastic thin wall 18 of the guide sleeve 15 is elastically deformed to clamp and fix the guide rod 13 at the rear end of the elastic pin 7, so as to realize the locking of the elastic pin 7;

[0053] (7) Left side surface processing of the electrode: turn on the electric spark numerical control machining machine tool, and use the cutting tool to process the left side surface of the sheet graphite electrode 2.

[0054] The above steps (4) to (7) can be executed in a loop to realize the rough machining, semi-finishing and finishing of the two side surfaces of the sheet graphite electrode 2.

[0055] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A vibration-resistant tooling for processing thin-film graphite electrodes, characterized in that, The utility model provides a graphite sheet electrode clamping device, including base, set up on the base for clamping graphite sheet electrode's clamping device, set up on the base and divide in the clamping device left and right side position a pair of telescopic mechanism, set up on the telescopic mechanism telescopic rod, set up in the telescopic mechanism telescopic rod front end's ejector pin seat board, the spring is set up on the ejector pin seat board for spring top one side of graphite sheet electrode a number of interval arrangement's spring ejector pin, be used for in spring top one side of the graphite sheet electrode after the spring ejector pin of the spring, the spring ejector pin fixed locking device.

2. The anti-vibration tooling for processing of sheet graphite electrodes according to claim 1, characterized in that, The telescopic mechanism is a pneumatic cylinder, and the ejector pin seat board is fixedly arranged at the front end of the telescopic rod of the pneumatic cylinder.

3. The anti-vibration tooling for processing of sheet graphite electrodes according to claim 1, characterized in that, The telescopic mechanism is a servo cylinder, and the ejector pin seat board is fixedly arranged at the front end of the telescopic rod of the servo cylinder.

4. The anti-vibration tooling apparatus for processing sheet graphite electrodes of claim 1, wherein, The ejector pin seat board is provided with a plurality of ejector pin positioning holes arranged at intervals, and the spring ejector pin is movably arranged in the ejector pin positioning hole and elastically abuts against one side of the graphite sheet electrode through a pressing spring.

5. The anti-vibration tooling apparatus for processing sheet graphite electrodes of claim 4, wherein, The rear end of the ejector pin seat board is provided with a limiting plate, the limiting plate is provided with a plurality of limiting holes, the rear end of the spring ejector pin is provided with a guide rod, the guide rod passes through the limiting hole of the limiting plate and is connected to a limiting screw, and the pressing spring is arranged outside the guide rod in the ejector pin positioning hole of the ejector pin seat board.

6. The anti-vibration tooling apparatus for processing sheet graphite electrodes of claim 5, wherein, The ejector pin fixed locking device comprises a guide sleeve arranged in the limiting hole of the limiting plate, an annular groove is formed in the outer circle of the guide sleeve, thereby forming an annular oil storage cavity between the limiting hole of the limiting plate and the outer circle of the annular groove of the guide sleeve, and an elastic thin wall is formed between the inner hole of the guide sleeve and the outer circle of the annular groove, an oil inlet channel is formed in the limiting plate and is connected to the annular oil storage cavity, each oil inlet channel is connected to an oil supply main pipe through a high-pressure hose, and the oil supply main pipe is connected to an oil pressure system.

7. The anti-vibration tooling apparatus for processing sheet graphite electrodes of claim 5, wherein, The telescopic rod of the telescopic mechanism is fixedly connected to the limiting plate at the rear end of the ejector pin seat board.

8. The anti-vibration tooling apparatus for processing sheet graphite electrodes of claim 1, wherein, The telescopic rod of the telescopic mechanism is a horizontal telescopic rod.

9. The anti-vibration tooling apparatus for processing sheet graphite electrodes of claim 4, wherein, The ejector pin positioning holes are arranged on the ejector pin seat board.

10. The anti-vibration tooling apparatus for processing sheet graphite electrodes of claim 1, wherein, The clamping device comprises a clamping seat fixed to the base, a positioning groove arranged on the clamping seat, and a clamping screw arranged on the side of the positioning groove of the clamping seat.

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