Electric spark perforation equipment

Abstract

The utility model discloses an electric spark perforating device which comprises a machine body, a first working table is connected to the machine body in a sliding mode, a second working table is connected to the first working table in a sliding mode, a plurality of supporting columns and a positioning assembly are fixedly connected to the second working table, and workpieces needing to be machined are placed on the supporting columns. The positioning assembly is used for clamping a workpiece on the supporting column and comprises a positioning block, the positioning block is fixedly connected to the second workbench, the positioning block is in threaded connection with a screw rod, the positioning block is provided with an internal thread matched with the screw rod, the end face, away from the fixing block, of the screw rod is fixedly connected with a connecting column, and the connecting column is rotationally connected with a pressing plate; an opening is formed in the pressing plate. Compared with the prior art, the electric spark perforation equipment has the advantages that a workpiece needing to be machined can be clamped, displacement of the position of the workpiece can be effectively prevented, the machining precision can be guaranteed to a certain extent, and the yield is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electric spark perforating equipment technical field, concretely relates to a kind of electric spark perforating equipment. BACKGROUND

[0002] The working principle of electric spark perforating machine is realized based on electric spark discharge corrosion principle, mainly used for machining the hole less than 5mm in size, suitable for the die machining of workpiece.

[0003] Electric spark perforating machine uses continuously up and down vertical movement thin metal copper pipe as electrode, and carries out pulse spark discharge to workpiece, to etch away metal forming.In actual production, since electric spark perforating equipment will vibrate when working, the vibration can cause the displacement of the workpiece to be processed, so as to guarantee the machining precision, resulting in the decline of good product rate.

[0004] Therefore, in view of the above technical problems, it is necessary to provide an electric spark perforating equipment.

[0005] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general context in which the present utility model is made and should not be taken as an acknowledgement or any form of suggestion that this information forms prior art that is publicly known. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing an electric spark perforating equipment, which can clamp the workpiece to be processed, effectively prevent the displacement of the workpiece, guarantee the machining precision to some extent, and improve the good product rate.

[0007] In order to achieve the above purpose, the utility model provides an electric spark perforating equipment in one specific embodiment, which comprises a machine body, a first workbench is slidably connected to the machine body, a second workbench is slidably connected to the first workbench, a supporting column and a positioning assembly are fixedly connected to the second workbench, the supporting column is multiple, the workpiece to be processed is placed on the multiple supporting columns, and the positioning assembly is used for clamping the workpiece on the supporting column.

[0008] In one or more embodiments of the utility model, the positioning assembly comprises a positioning block, the positioning block is fixedly connected to the second workbench, a screw rod is threadedly connected to the positioning block, an inner thread matched with the screw rod is formed in the positioning block, a connecting column is fixedly connected to the end face of the screw rod away from the fixed block, a pressing plate is rotatably connected to the connecting column, and an opening is formed in the pressing plate.

[0009] In one or more embodiments of the utility model, the connecting column is fixedly connected with a hand wheel at the end away from the screw rod.

[0010] In one or more embodiments of the utility model, the lower panel of the pressing plate is fixedly connected with elastic blocks matched with the supporting columns.

[0011] In one or more embodiments of the utility model, the supporting columns are four.

[0012] In one or more embodiments of the utility model, the pressing plate is fixedly connected with a roller bearing, and the connecting column penetrates the rotating inner ring of the roller bearing.

[0013] In one or more embodiments of the utility model, the connecting column is fixedly connected with a first limiting ring and a second limiting ring matched with the roller bearing.

[0014] In one or more embodiments of the utility model, the supporting column is fixedly connected with an anti-skid block on the end face away from the second workbench.

[0015] In one or more embodiments of the utility model, the anti-skid block is provided with a plurality of grooves on the end face away from the supporting column.

[0016] In one or more embodiments of the utility model, the anti-skid block is a rubber block.

[0017] Compared with the prior art, the electric spark perforating equipment can clamp the workpiece to be processed, can effectively prevent the position of the workpiece from being displaced, can guarantee the machining precision to a certain extent, and can improve the yield. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0019] Figure 1 It is an embodiment of the utility model electric spark perforating equipment structure schematic view;

[0020] Figure 2 It is an embodiment of the utility model electric spark perforating equipment positioning assembly structure schematic Figure 1 ;

[0021] Figure 3 It is an embodiment of the utility model electric spark perforating equipment positioning assembly partial sectional view;

[0022] Figure 4 It is Figure 3 structure schematic view;

[0023] Figure 5 It is the structure diagram of the pressing plate of the positioning assembly of the electric spark perforating equipment in an embodiment of the present application.

[0024] Figure 6 It is the structure diagram of the supporting column of the electric spark perforating equipment in an embodiment of the present application.

[0025] Main figure mark explanation:

[0026] 1, machine body; 11, first workbench; 12, second workbench; 13, drive assembly; 131, electrode; 2, supporting column; 21, anti-skid block; 211, groove; 3, positioning block; 31, internal thread; 32, screw rod; 33, first limiting ring; 34, connecting column; 35, second limiting ring; 36, hand wheel; 4, pressing plate; 401, opening; 41, elastic block; 42, roller bearing; 5, workpiece. Specific implementation

[0027] In order to make the personnel in the technical field better understand the technical scheme in the present application, the technical scheme in the embodiment of the present application will be described clearly and completely in combination with the drawings in the embodiment of the present application. Obviously, the described embodiment is only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the protection scope of the present application.

[0028] As shown in the figure, Figure 1 The electric spark perforating equipment in an embodiment of the present application includes a machine body 1, the machine body 1 is slidably connected with a first workbench 11 and a drive assembly 13, the first workbench 11 is slidably connected with a second workbench 12, and the drive assembly 13 is installed with an electrode 131. In normal use, the workpiece 5 is placed on the second workbench 12, the workpiece 5 is aligned with the electrode 131 by sliding the first workbench 11 and the second workbench 12, and the drive assembly 13 is slid downward to perforate the workpiece 5.

[0029] In order to fix the workpiece 5, as shown in the figure, Figures 1 to 5 The second workbench 12 is welded with a plurality of supporting columns 2 and a positioning assembly, the plurality of supporting columns 2 are placed with the workpiece 5, and the positioning assembly is used for fixing the workpiece 5 on the supporting column 2. Specifically, the positioning assembly includes a positioning block 3, the positioning block 3 is provided with an internal thread 31, the internal thread 31 is threadedly connected with a screw rod 32, the screw rod 32 is welded with a connecting column 34, the connecting column 34 is rotatably connected with a pressing plate 4, and the pressing plate 4 is provided with an opening 401 matched with the electrode 131.

[0030] Preferably, the supporting column 2 is four.

[0031] It is worth noting that the support column 2 can support the workpiece 5 so that the workpiece 5 is at a certain distance from the second workbench 12 . In this way, the electrode 131 does not contact the second workbench 12 after penetrating the workpiece 5 , thus avoiding accidental damage to the second workbench 12 .

[0032] When punching the workpiece 5, place the workpiece 5 on the support column 2, rotate the pressure plate 4 so that the pressure plate 4 is above the workpiece 5, and then rotate the screw 32 clockwise. The pressure plate 4 descends along with the screw 32, and can clamp the workpiece 5 on the support column 2.

[0033] Specifically, a roller bearing 42 is welded to the pressure plate 4. The rotating outer ring of the roller bearing 42 is welded to the pressure plate 4. The connecting column 34 extends through the rotating inner ring of the roller bearing 42. The outer wall of the connecting column 34 forms an interference fit with the rotating inner ring of the roller bearing 42. When the screw 32 is rotated, the rotating inner ring of the roller bearing 42 rotates, but the pressure plate 4 does not rotate with the screw 32, remaining above the workpiece 5. By continuously rotating the screw 32, the pressure plate 4 descends toward the support column 2, clamping the workpiece 5.

[0034] Furthermore, a hand wheel 36 is welded to one end of the connecting column 34 away from the screw rod 32 , which can save effort when rotating the screw rod 32 .

[0035] like Figure 1 As shown in the figure supporting column 2, an elastic block 41 matching the support column 2 is welded to the lower plate of the pressure plate 4. The elastic block 41 and the support column 2 cooperate to clamp the workpiece 5. The elastic force of the elastic block 41 can generate an upward force on the screw 32, which can increase the friction between the screw 32 and the internal thread 31, preventing the vibration generated by the EDM perforation equipment during operation from causing the screw 32 to rotate, and can better clamp the workpiece 5.

[0036] Since the working fluid is injected between the electrodes 131 and 6 during the operation of the electrospark perforation device, in order to prevent the working fluid from corroding the roller bearing 42 and causing damage to the roller bearing 42, such as Figures 2 to 4 The outer wall of the connecting column 34 is integrally formed with a first limiting ring 33 and a second limiting ring 35 that match the roller bearing 42 . The first limiting ring 33 and the second limiting ring 35 can shield the elastic block 41 to prevent the working fluid from entering the roller bearing 42 .

[0037] It is worth noting that since the surface of the workpiece 5 to be processed is relatively flat and smooth, the friction between the workpiece 5 and the support column 2 is small. In order to increase the friction between the workpiece 5 and the support column 2, as shown in FIG. Figure 6As shown, an anti-slip block 21 is bonded to the end surface of the support column 2 away from the second workbench 12, which can enhance the friction between the anti-slip block 21 and the workpiece 5. Furthermore, a plurality of grooves 211 are formed on the end surface of the anti-slip block 21 away from the support column 2. These grooves 211 can further increase the friction on the surface of the anti-slip block 21, making the workpiece 5 more stable on the support column 2.

[0038] Preferably, the anti-slip block 21 is a rubber block, and the surface of the anti-slip block 21 after the groove 211 is formed can be relatively rough, and can also generate greater friction when contacting the workpiece 5. Further, the anti-slip block 21 after the groove 211 increases the contact points with the workpiece 5, thereby increasing the friction.

[0039] When using, Figures 1 to 3 As shown, first place the workpiece 5 on the anti-slip block 21, rotate the pressure plate 4 so that the opening 401 is aligned with the electrode 131; then rotate the handwheel 36 clockwise, the screw 32 rotates along with the handwheel 36, and the screw 32 engages with the internal thread 31 and continues to move downward, the elastic block 41 and the anti-slip block 21 can clamp the workpiece 5, and the electrode 131 can then process the workpiece 5.

[0040] After the workpiece 5 is processed, the hand wheel 36 is rotated counterclockwise, the screw 32 moves upward, and the elastic block 41 is away from the workpiece 5. Then, the pressing plate 4 is rotated to remove the workpiece 5.

[0041] Compared with the prior art, the electric spark perforating equipment of the present invention can clamp the workpiece to be processed, effectively prevent the position of the workpiece from being displaced, and can ensure the processing accuracy to a certain extent and improve the yield rate.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0043] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An electric spark piercing device comprising a machine body, a first worktable is slidably connected on the machine body, and a second worktable is slidably connected on the first worktable, characterized in that, The second workbench is fixedly connected with supporting columns and a positioning assembly, the supporting columns are multiple, multiple workpieces to be machined are placed on the supporting columns, and the positioning assembly is used for clamping the workpieces on the supporting columns.

2. An electrical discharge perforating apparatus as defined in claim 1, wherein The positioning assembly comprises a positioning block fixedly connected to the second workbench, a screw rod threadedly connected to the positioning block, an inner thread matched with the screw rod formed in the positioning block, a connecting column fixedly connected to an end of the screw rod away from the positioning block, and a pressing plate rotatably connected to the connecting column, and an opening is formed in the pressing plate.

3. An electrical discharge perforating apparatus as defined in claim 2, wherein An end of the connecting column away from the screw rod is fixedly connected with a hand wheel.

4. An electrical discharge perforating apparatus as defined in claim 2, wherein An elastic block matched with the supporting column is fixedly connected to a lower panel of the pressing plate.

5. An electrical discharge perforating apparatus as defined in claim 2, wherein The supporting columns are four.

6. An electrical discharge perforating apparatus as defined in claim 2, wherein A roller bearing is fixedly connected to the pressing plate, and the connecting column penetrates a rotating inner ring of the roller bearing.

7. An electrical discharge perforating apparatus as defined in claim 6, wherein First and second limiting rings matched with the roller bearing are fixedly connected to the connecting column.

8. An electrical discharge perforating apparatus as defined in claim 1, wherein An anti-skid block is fixedly connected to an end of the supporting column away from the second workbench.

9. An electrical discharge perforating apparatus as defined in claim 8, wherein Multiple grooves are formed in an end of the anti-skid block away from the supporting column.

10. An electrical discharge perforating apparatus as defined in claim 9, wherein The anti-skid block is a rubber block.

Images