Wire guide wheel of electric spark cutting machine

Abstract

A wire guide wheel of an electric spark cutting machine is arranged on a machine body of the electric spark cutting machine and comprises a supporting shaft and a supporting body rotatably arranged on the supporting shaft, the supporting body comprises a base sleeve body and an outer lining spirally arranged on the outer surface of the base sleeve body in a sleeving mode, a plurality of axial through holes are formed in the outer lining at equal intervals, and recognition insertion rods are inserted into the axial through holes; a limiting baffle is arranged at the limiting end of the recognition insertion rod, the limiting baffle and the recognition insertion rod form an L-shaped structure, the far end of the limiting baffle is axially embedded into the anti-rotation notch in the end face of the base sleeve body, a fixing nut is arranged on the outer thread of the fixing end of the recognition insertion rod in a matched mode, and a plurality of annular guide grooves are formed in the outer circumferential surface of the outer lining. The wire guide wheel has the advantages that the base sleeve body and the outer lining are firmly fixed and convenient to disassemble, assemble and maintain, a new annular guide groove can be always kept at the optimal guide position, and the wire guide wheel has outstanding practicability.

Description

Technical Field

[0001] The utility model relates to a wire wheel for an electric spark cutting machine, belonging to the technical field of components provided for the electric spark cutting machine. Background Art

[0002] The existing wire wheel of the electric spark cutting machine is as follows: 208696496U; Authorization announcement date: April 5, 2019; Name: A guide wheel for an electric spark wire cutting machine tool, including a guide wheel body, a guide groove is arranged on the outer ring of the guide wheel body, and a plurality of reinforcing steel pipes for identification are arranged on the guide wheel body inside the guide groove. The guide wheel body is fixedly mounted on the body of the electric spark machine through the rotating shafts at both end faces of its central axis hole. The guide wheel has the following defects: 1. When all the guide grooves on the outer side of the guide wheel body are worn and cannot be used, the guide wheel body needs to be replaced as a whole. The mass volume of the guide wheel body accounts for more than 80% of the guide wheel, which not only causes a lot of waste, but also causes inconvenience in disassembly; 2. When one guide groove is worn, when the cutting wire is replaced to other guide grooves, the cutting wire will be stretched laterally, resulting in a change in the tightness of the wire pulling, and the cutting wire after the lateral deflection is easy to rub against the side wall of the guide groove, which is easy to accelerate the wear of the cutting wire and shorten the service life of the cutting wire. Utility Model Content

[0003] The purpose of the utility model is to provide a wire wheel for an electric spark cutting machine in view of the above-mentioned defects of the prior art. The wire wheel has the advantages that the base sleeve body and the outer sleeve are not only firmly fixed, but also easy to disassemble and maintain, and the new annular guide groove can always be kept in the best guiding position, and has outstanding practicality.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A wire wheel for an electric spark cutting machine is arranged on the body of the electric spark machine, comprising a support shaft and a support body rotatably arranged on the support shaft, the support body comprising a base sleeve body and an outer sleeve spirally sleeved on the outer surface of the base sleeve body, a plurality of axial through holes are equidistantly arranged inside the outer sleeve, an identification plug rod is inserted in the axial through hole, a limit baffle is arranged at the limit end of the identification plug rod, the limit baffle and the identification plug rod form an L-shaped structure, the distal end of the limit baffle is axially embedded in the anti-rotation notch of the end face of the base sleeve body, a fixing nut is arranged on the external thread of the fixed end of the identification plug rod, and a plurality of annular guide grooves are arranged on the outer circumferential surface of the outer sleeve.

[0006] By adopting the above technical solution, a wire wheel for an electric spark cutting machine is provided, the wire wheel comprises a support shaft, a base sleeve body fixed on a bearing, and an outer sleeve detachably mounted on the outside of the base sleeve body, and an identification plug rod is arranged in the outer sleeve, and the limiting end of the identification plug rod is used to prevent rotation positioning between the base sleeve body and the outer sleeve. During use, when an annular guide groove is worn to expose the identification plug rod (the identification plug rod and the outer sleeve have different colors for easy identification), the cutting wire can be switched to another annular guide groove for continued use. When all the annular guide grooves are worn, the guide wheel can be repaired by replacing the outer sleeve. The wire wheel has the advantages of reliable cooperation between the base sleeve body and the outer sleeve, easy maintenance, and outstanding practicality. In addition to the above advantages, the wire wheel can also adjust the position of the outer sleeve on the base sleeve body by rotating the outer sleeve, so that the annular guide groove is always in the best position to guide the cutting wire.

[0007] The utility model is further configured as follows: a countersunk hole corresponding to the limit baffle is arranged on the end face of the outer bushing; when the outer bushing and the base sleeve body are installed, the countersunk hole corresponds to and is connected with the anti-rotation notch.

[0008] The utility model is further configured as follows: the side wall of the anti-rotation notch is in a matching relationship with the edge of the distal end of the limiting baffle.

[0009] By adopting the above technical solution, the anti-rotation notch and countersunk hole corresponding to the limit baffle are limited, and the rotation of the base sleeve body and the outer sleeve can be effectively avoided by the cooperation between the limit baffle and the anti-rotation notch and countersunk hole.

[0010] The utility model is further configured as follows: when the end face of the fixing nut is fitted on the end face of the axial through hole of the outer bushing, the end face of the fixing nut does not contact the end face of the base sleeve body.

[0011] By adopting the above technical solution, a gap is reserved between the end face of the fixing nut and the base sleeve body, which can avoid the situation where the fixing nut becomes loose due to slight rotation between the base sleeve body and the outer sleeve in the working state due to manufacturing defects, and can effectively ensure that the fixing nut is firmly fixed to the identification rod.

[0012] The utility model is further configured to: identify the inserted rod as a hollow rod.

[0013] By adopting the above technical solution, the identification rod is designed to be hollow, which can effectively save raw materials and achieve lightweight guide wheel, saving manufacturing costs on the one hand and transportation costs on the other.

[0014] The utility model is further configured as follows: the base sleeve body is arranged on the support shaft through a bearing.

[0015] The utility model is further configured as follows: the base sleeve body is arranged on the supporting shaft through two bearings at two ends of the shaft hole of the base sleeve body.

[0016] By adopting the above technical solution, the installation of the base sleeve body on the supporting shaft is limited, and this design effectively ensures the rotation stability of the base sleeve body.

[0017] The utility model is further configured as follows: the support shaft is fixedly mounted on the body of the electric spark machine through a base.

[0018] The utility model is further configured as follows: the base is detachably fixed on the body of the electric spark machine.

[0019] The utility model is further configured as follows: the base is detachably fixed on the body of the electric spark machine by bolts.

[0020] By adopting the above technical solution, the specific installation method of the support shaft on the EDM machine body is limited.

[0021] The main beneficial effects of the utility model are:

[0022] 1. This new guide wheel has the advantages of reliable matching between the base sleeve and the outer sleeve, and convenient disassembly, assembly and maintenance;

[0023] 2. The new wire wheel has a novel design, and the position of the outer sleeve on the base sleeve can be adjusted by rotating the outer sleeve, so that the annular guide groove is always in the best position to guide the wire;

[0024] 3. The new guide wheel reserves a gap between the end face of the fixing nut and the base sleeve body, which can avoid the loosening of the fixing nut due to slight rotation between the base sleeve body and the outer sleeve in the working state due to manufacturing defects, and can effectively ensure that the fixing nut is firmly fixed to the identification rod;

[0025] 4. The new guide wheel is designed to be hollow in the identification rod, which can effectively save raw materials and realize the lightweight of the guide wheel, saving manufacturing costs on the one hand and transportation costs on the other. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the appearance of the utility model;

[0028] Figure 2It is a schematic diagram of the internal structure of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the left side of the utility model;

[0030] Figure 4 yes Figure 2 Enlarged view of point A in the middle.

[0031] In the figure, 1, support shaft; 2, bearing; 3, base sleeve body; 31, anti-rotation notch; 4, outer bushing; 5, annular guide groove; 6, identification rod; 7, limit baffle; 8, fixing nut; 9, base. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Specific embodiment 1:

[0034] like Figures 1 to 4 As shown, a wire wheel for an electric spark cutting machine comprises a support shaft 1 and a support body rotatably arranged on the support shaft 1.

[0035] The wire wheel of the electric spark cutting machine is detachably mounted on the body of the electric spark cutting machine through a base 9 of the support shaft 1. The base 9 is detachably fixed on the body of the electric spark cutting machine by bolts.

[0036] The support body includes a base sleeve body 3 and an outer sleeve 4 spirally sleeved on the outer surface of the base sleeve body 3. The base sleeve body 3 is placed on the support shaft 1 through two bearings 2 at the two ends of its axial hole. The outer circumferential surface of the outer sleeve 4 is provided with a plurality of annular guide grooves 5. The interior of the outer sleeve 4 is equidistantly provided with a plurality of axial through holes, in which a hollow identification plug rod 6 (the color of the identification plug rod 6 is obviously different from that of the outer sleeve 4) is inserted. A limiting baffle 7 is provided at the limiting end of the identification plug rod 6. The limiting baffle 7 and the identification plug rod 6 form an L-shaped structure. The distal end of the limiting baffle 7 is axially embedded in the anti-rotation notch 31 on the end face of the base sleeve body 3. The end face of the outer sleeve 4 is provided with a countersunk hole corresponding to the limiting baffle 7. When the outer sleeve 4 and the base sleeve body 3 are installed, the countersunk hole corresponds to and is connected with the anti-rotation notch 31, and the side wall of the anti-rotation notch 31 is in a matching relationship with the edge of the distal end of the limiting baffle 7. A fixing nut 8 is provided on the external thread of the fixed end of the identification plug rod 6 . When the end face of the fixing nut 8 is fitted on the end face of the axial through hole of the outer bushing 4 , the end face of the fixing nut 8 does not contact the end face of the base sleeve body 3 .

[0037] Principle of use: When one annular guide groove 5 is worn out and the identification plug rod 6 is exposed, the worker can move the cutting wire horizontally to another intact annular guide groove 5 for use. At the same time, the fixing nut 8 can be loosened and the position of the outer bushing 4 on the base sleeve body 3 can be adjusted to move the annular guide groove 5 where the cutting wire is sleeved to a suitable position to avoid the cutting wire being broken due to excessive horizontal movement. When all the annular guide grooves 5 on the outer bushing 4 are worn out and the identification plug rod 6 is exposed, the wire wheel of the electric spark cutting machine can be replaced by replacing the outer bushing 4.

Claims

1. A wire wheel for an electric spark cutting machine, arranged on a body of the electric spark cutting machine, comprising a support shaft (1) and a support body rotatably arranged on the support shaft (1), characterized in that: The support body comprises a base sleeve body (3) and an outer sleeve (4) which is spirally sleeved on the outer surface of the base sleeve body (3). The inner part of the outer sleeve (4) is provided with a plurality of axial through holes at equal intervals. An identification plug rod (6) is inserted in the axial through holes. A limiting baffle (7) is provided at the limiting end of the identification plug rod (6). The limiting baffle (7) and the identification plug rod (6) form an L-shaped structure. The distal end of the limiting baffle (7) is axially embedded in the anti-rotation notch (31) on the end face of the base sleeve body (3). A fixing nut (8) is provided on the external thread of the fixed end of the identification plug rod (6). The outer circumferential surface of the outer sleeve (4) is provided with a plurality of annular guide grooves (5).

2. The wire wheel for an electric spark cutting machine according to claim 1, characterized in that: The end surface of the outer bushing (4) is provided with a countersunk hole corresponding to the limit baffle (7); when the outer bushing (4) and the base sleeve body (3) are installed, the countersunk hole corresponds to and is connected to the anti-rotation notch (31).

3. The wire wheel for an electric spark cutting machine according to claim 2, characterized in that: The side wall of the anti-rotation notch (31) is in a matching relationship with the edge of the distal end of the limiting baffle (7).

4. The wire wheel for an electric spark cutting machine according to claim 3, characterized in that: When the end face of the fixing nut (8) is in contact with the end face of the axial through hole of the outer bushing (4), the end face of the fixing nut (8) does not contact the end face of the base sleeve body (3).

5. The wire wheel for an electric spark cutting machine according to claim 1, characterized in that: The identification insertion rod (6) is a hollow rod.

6. The wire wheel for an electric spark cutting machine according to claim 1, characterized in that: The base sleeve body (3) is placed on the support shaft (1) via a bearing (2).

7. The wire wheel for an electric spark cutting machine according to claim 6, characterized in that: The base sleeve body (3) is placed on the supporting shaft (1) through two bearings (2) at two ends of its axial hole.

8. The wire wheel for an electric spark cutting machine according to claim 1, characterized in that: The support shaft (1) is fixedly mounted on the body of the electric spark machine via a base (9).

9. The wire wheel for an electric spark cutting machine according to claim 8, characterized in that: The base (9) is detachably fixed on the body of the electric spark machine.

10. The wire wheel for an electric spark cutting machine according to claim 9, characterized in that: The base (9) is detachably fixed to the body of the electric spark machine by bolts.

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