Height adjusting structure of spark machine chuck

Abstract

The utility model discloses a spark machine chuck height adjusting structure, which is characterized in that one side of an annular mounting block is provided with a notch along the radial direction, the annular mounting block is respectively provided with a locking hole and a locking screw hole at two sides of the notch, one side of the annular mounting block far away from the notch is provided with a positioning groove, and the annular mounting block is also provided with a jackscrew thread hole along the radial direction; the extension rod is arranged on the annular installation block in a penetrating mode, a groove is formed in one side of the outer surface of the extension rod and in the length direction of the extension rod, the groove corresponds to the jackscrew threaded hole, and the positioning protrusion on one side of the extension rod is matched with the positioning groove. And on the other hand, after the jackscrew is matched with the groove, the extension rod is prevented from rotating through the matching of the positioning bulge and the positioning groove, and the annular mounting block is positioned on the two sides of the notch and is respectively provided with the locking hole and the screw hole so as to be fastened and matched with the screw, so that double fastening is realized, and the stability of the extension rod is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical field especially, and it is spark machine tool, concretely is a spark machine chuck height adjusting structure. BACKGROUND

[0002] Spark machine is also called electric spark machine, and is abbreviated as EDM, and it is a kind of machining equipment, is widely used in the manufacture of various metal moulds, mechanical equipment.Electric spark machine utilizes the electric erosion of the pulse discharge between two poles immersed in working fluid to erode conductive material.

[0003] The chuck of spark machine is used to hold electrode, and the top of chuck is connected with the height adjusting assembly of the bottom of main shaft through threaded connecting rod.In prior art, height adjusting assembly adopts a ring seat and an extension rod cooperation, and the top of chuck is connected with extension rod through threaded connecting rod, and extension rod is fastened with ring seat through jackscrew, and in long-term use, jackscrew is prone to loosen, and extension rod is prone to self-rotation, which affects the stability of chuck.Therefore, an improved technology is urgently needed to solve the above problems in prior art. UTILITY MODEL CONTENT

[0004] The utility model discloses a spark machine chuck height adjusting structure, and the extension rod is positioned and cooperates with the positioning groove of ring mounting block through positioning protrusion, so that the jackscrew threaded hole corresponds with the recess of extension rod, on the one hand, jackscrew is directly matched with recess after being screwed into jackscrew threaded hole, and on the other hand, after jackscrew is matched with recess, positioning protrusion and positioning groove are further matched, the self-rotation of extension rod is prevented, so that the stability of chuck is greatly improved, and the locking hole and the screw hole are arranged on both sides of the gap of ring mounting block respectively to realize fastening cooperation with screw, jackscrew is fastened, and bolt is also fastened, double fastening, further guarantee the stability of extension rod, to solve the problems in the above background.

[0005] To realize the above object, the utility model provides the following technical scheme: a spark machine chuck height adjusting structure, including ring mounting block and extension rod,

[0006] The side of ring mounting block is provided with gap along radial direction, and the locking hole and locking screw hole are arranged on both sides of ring mounting block, the positioning groove is arranged on the side of ring mounting block away from gap, and jackscrew threaded hole is further arranged along radial direction in ring mounting block,

[0007] The prolongation rod is arranged in the annular mounting block, a groove is arranged on one side of the outer surface of the prolongation rod along the length direction, the groove arranged on the prolongation rod corresponds to the position of the top screw thread hole, a cavity is arranged in the prolongation rod, a chuck connecting rod connecting hole is arranged on the lower part of the prolongation rod along the axial direction, the chuck connecting rod connecting hole and the cavity are communicated with each other, and the positioning protrusion is arranged on one side of the prolongation rod.

[0008] Preferably, the annular mounting block is provided with mounting holes on both sides and in the axial direction.

[0009] Preferably, the annular mounting block is provided with mounting holes on both sides and in the axial direction.

[0010] Preferably, the annular mounting block is provided with mounting holes on both sides and in the axial direction.

[0011] Preferably, the annular mounting block is provided with mounting holes on both sides and in the axial direction.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] (1) the prolongation rod is positioned and matched with the positioning groove of the annular mounting block through the positioning protrusion, so that the top screw thread hole corresponds to the groove of the prolongation rod, on the one hand, the top screw is matched with the groove after being screwed into the top screw thread hole, and on the other hand, the top screw is matched with the groove, and then the positioning protrusion is matched with the positioning groove, so that the self-rotation of the prolongation rod is prevented, and the stability of the chuck is greatly improved.

[0014] (2) the annular mounting block is provided with locking holes and screw holes on both sides of the notch to realize fastening and matching with the screw, the top screw is fastened, and the bolt is also fastened at the same time, so that the stability of the prolongation rod is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic diagram of the utility model;

[0016] Fig. 2 It is a sectional structure schematic diagram of the utility model;

[0017] Fig. 3 It is a top view structure schematic diagram of the utility model.

[0018] In the figure: annular mounting block 1, extension rod 2, notch 3, locking hole 4, locking screw hole 5, positioning groove 6, jackscrew threaded hole 7, groove 8, cavity 9, chuck connecting rod connecting hole 10, positioning protrusion 11, mounting hole 12, chuck fastening screw hole 13, jackscrew 14, screw 15. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described clearly and completely below in combination with the embodiments of the present application and the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] It should be noted that in the description of the present application, it should be noted that the terms "inner", "outer", "upper", "lower", "two sides", "one end", "the other end", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0021] Please refer to Figs. 1-3 The present application provides a technical solution: a spark machine chuck height adjusting structure, comprising an annular mounting block 1 and an extension rod 2;

[0022] The extension rod 2 is arranged in the annular mounting block 1, the outer surface of the extension rod 2 is provided with a groove 8, the extension rod 2 is internally provided with a cavity 9, the lower part of the extension rod 2 is axially provided with a chuck connecting rod connecting hole 10, the chuck connecting rod connecting hole 10 is communicated with the cavity 9, the extension rod 2 is provided with a positioning protrusion 11, the annular mounting block 1 is provided with a mounting hole 12 on both sides parallel to the axial direction, so as to be fastened and connected with the bottom of the spark machine spindle through bolts, the annular mounting block 1 is provided with a notch 3 on one side along the radial direction, the annular mounting block 1 is provided with a locking hole 4 and a locking screw hole 5 on both sides of the notch 3, the locking hole 4 is matched with a screw 15, the screw 15 passes through the locking hole 4 and is fastened and connected with the locking screw hole 5, the annular mounting block 1 is pulled on both ends of the notch 3 through the screw 15, so as to lock the extension rod 2, the annular mounting block 1 is provided with a positioning groove 6 on the side away from the notch 3, the annular mounting block 1 is also provided with a jackscrew threaded hole 7 along the radial direction, the inner diameter of the jackscrew threaded hole 7 matches the width of the groove 8 on the extension rod 2 and the positions correspond to each other, the jackscrew threaded hole 7 is matched with a jackscrew 14, the end of the jackscrew 14 is matched with the groove 8, so as to ensure that the end of the jackscrew 14 can smoothly enter the groove 8, and the groove 8 prevents the extension rod 2 from rotating, the positioning protrusion 11 on the extension rod 2 is matched with the positioning groove 6 of the annular mounting block 1, the bottom of the extension rod 2 is uniformly provided with a plurality of chuck fastening screw holes 13, which are matched with bolts, so as to further fasten and connect the chuck with the bottom of the extension rod 2.

[0023] The assembling method and using principle are as follows: firstly, the positioning protrusion 11 of the extension rod 2 is corresponded with the positioning groove 6 of the annular mounting block 1, the extension rod 2 is passed through the annular mounting block 1, the jackscrew 14 is passed through the jackscrew threaded hole 7, the jackscrew 14 is screwed tightly, the jackscrew 14 is arranged in the recess 8 of the extension rod 2, the jackscrew 14 is preliminarily fastened and connected with the recess 8 of the extension rod 2, then the screw 15 is passed through the locking hole 4 and fastened and connected with the locking threaded hole 5, the annular mounting block 1 is further locked with the extension rod 2, and the assembling is completed. When in use, the threaded connecting rod of the chuck is passed through the chuck connecting hole 10 at the bottom of the extension rod 2, the nut is arranged in the cavity 9 of the extension rod 2 and fastened and connected with the threaded connecting rod of the chuck, so that the chuck is connected with the extension rod 2, then the annular mounting block 1 is arranged at the bottom of the main shaft of the spark machine, and the annular mounting block 1 is mounted at the bottom of the main shaft of the spark machine by cooperation of the mounting hole 12 of the annular mounting block 1 and the bolt, and the mounting is completed. When the height of the chuck needs to be adjusted, the jackscrew 14 and the screw 15 are loosened to adjust the height of the chuck, and after the height is adjusted, the jackscrew 14 and the screw 15 are locked again. The utility model has the advantages of reasonable structure, the positioning protrusion 11 of the extension rod 2 is positioned and matched with the positioning groove 6 of the annular mounting block 1, so that the jackscrew threaded hole 7 is corresponded with the recess 8 of the extension rod 2, on the one hand, the jackscrew 14 is directly corresponded and matched with the recess 8 after being screwed into the jackscrew threaded hole 7, and on the other hand, after the jackscrew 14 is matched with the recess 8, the positioning protrusion 11 and the positioning groove 6 are matched, the extension rod 2 is prevented from rotating, the stability of the chuck is greatly improved, and the annular mounting block 1 is provided with the locking hole 4 and the locking threaded hole 5 on the two sides of the notch 3 to realize fastening cooperation with the screw 15, the extension rod 2 is fastened by the jackscrew 14 and the bolt at the same time, the extension rod 2 is fastened in double ways, and the stability of the extension rod 2 is further ensured.

[0024] The parts not described in the utility model are the known technology of the person skilled in the art.

[0025] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the utility model and not to limit it. Although the utility model has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the utility model can be modified and replaced equivalently without departing from the spirit and scope of the technical solutions of the utility model, and they should be covered in the claim scope of the utility model.

Claims

1. A spark machine chuck height adjustment structure, characterized by: It comprises an annular mounting block (1) and an extension rod (2); A notch (3) is radially provided on one side of the annular mounting block (1); a locking hole (4) and a locking screw hole (5) are respectively provided on both sides of the notch (3); a positioning groove (6) is provided on the side of the annular mounting block (1) away from the notch (3); and a top screw thread hole (7) is further radially provided on the annular mounting block (1); The extension rod (2) is inserted into the annular mounting block (1), and a groove (8) is provided on one side of the outer surface of the extension rod (2) and along the length direction of the extension rod (2). The groove (8) provided on the extension rod (2) corresponds to the position of the top screw thread hole (7). A cavity (9) is provided inside the extension rod (2). A chuck connecting rod connecting hole (10) is provided at the lower part of the extension rod (2) and is axially passed through. The chuck connecting rod connecting hole (10) and the cavity (9) are communicated with each other. A positioning protrusion (11) is provided on one side of the extension rod (2), and the positioning protrusion (11) cooperates with the positioning groove (6) of the annular mounting block (1).

2. The spark machine chuck height adjustment structure according to claim 1, characterized in that: Mounting holes (12) are provided on both sides of the annular mounting block (1) and in the axial direction.

3. The spark machine chuck height adjustment structure according to claim 1, characterized in that: A plurality of clamp fastening screw holes (13) are evenly arranged on the bottom of the extension rod (2).

4. The spark machine chuck height adjustment structure according to claim 1, characterized in that: The inner diameter of the top screw thread hole (7) matches the width of the groove (8), the top screw thread hole (7) cooperates with the top screw (14), and the end of the top screw (14) cooperates with the groove (8).

5. The spark machine chuck height adjustment structure according to claim 1, characterized in that: The locking hole (4) cooperates with the screw (15), and the screw (15) passes through the locking hole (4) and is fastened to the locking screw hole (5).

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