Tungsten needle sharpening machine with grinding wheel convenient to disassemble and assemble

Abstract

The utility model belongs to the technical field of tungsten needle sharpening machines, and particularly discloses a tungsten needle sharpening machine with a grinding wheel convenient to disassemble and assemble, which comprises a machine body component, a positioning seat is overlapped at the output end of the machine body component, the grinding wheel is arranged at the top of the positioning seat, and a rotating shaft of the grinding wheel penetrates through the positioning seat and is rotatably connected with the machine body component. A locking hole is formed in the rotating shaft in the radial direction, an inserting hole corresponding to the locking hole in position is formed in the side wall of the positioning base in the radial direction in a penetrating mode, and a dismounting groove is formed in the top of the positioning base and located outside the grinding wheel. According to the tungsten needle sharpening machine with the grinding wheel convenient to disassemble and assemble, the locking hole is formed in the rotating shaft of the grinding wheel, and the inserting hole corresponding to the locking hole in position is formed in the side wall of the positioning seat in a penetrating mode, so that the disassembling rod can be inserted into the inserting hole and the locking hole only by rotating the rotating shaft to enable the locking hole to be aligned with the inserting hole, and the rotating shaft is prevented from rotating; and the grinding wheel can be conveniently, quickly and simply disassembled and assembled by matching with the disassembling groove for prying up the grinding wheel.

Description

Technical Field

[0001] The utility model belongs to the technical field of tungsten needle sharpening machines, and particularly relates to a tungsten needle sharpening machine which is convenient for disassembling and assembling a grinding wheel. Background Art

[0002] The grinding of tungsten electrodes (i.e. tungsten needles) is usually performed using a tungsten needle sharpening machine, such as sharpening, flattening and cutting.

[0003] Tungsten needle sharpening machine is a high-precision, automated, multi-functional equipment widely used in factories or laboratories that manufacture tungsten needles. Tungsten needle sharpening machine is a device used to grind and polish tungsten needles. It is usually driven by a motor and equipped with a grinding wheel or grinding wheel, which can accurately grind the tip of the tungsten needle to achieve the desired shape and size. Tungsten needle sharpening machine is usually used in factories or laboratories that manufacture tungsten needles and is one of the important equipment for manufacturing tungsten needles.

[0004] During the disassembly and installation process of the existing tungsten needle magic tip machine, the grinding wheel will rotate with the shaft. Therefore, the disassembly and installation of the grinding wheel is difficult and requires professionals with certain skills and experience to complete.

[0005] Therefore, the inventor is committed to designing a sharpening machine to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a tungsten needle sharpening machine which is convenient for disassembling and assembling a grinding wheel, and can disassemble and assemble the grinding wheel quickly and simply.

[0007] In order to achieve the above object, a technical solution adopted by the utility model is:

[0008] A tungsten needle sharpening machine for convenient disassembly and assembly of a grinding wheel comprises a body assembly, a positioning seat is superimposed on the output end of the body assembly, a grinding wheel is arranged on the top of the positioning seat, a rotating shaft of the grinding wheel passes through the positioning seat and is rotatably connected to the body assembly, a locking hole is arranged along its radial direction, a plug-in hole corresponding to the position of the locking hole is penetrated on the side wall of the positioning seat along its radial direction, a disassembly groove is arranged on the top of the positioning seat, and the disassembly groove is located outside the grinding wheel.

[0009] As an improvement of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel, a screw plug is connected to the inner thread of the plug-in hole.

[0010] As an improvement of the tungsten needle sharpening machine for convenient disassembly and assembly of the grinding wheel of the utility model, a processing groove is provided on the top of the positioning seat, the grinding wheel is located in the processing groove, and the disassembly groove is inclined and located at the edge of the processing groove.

[0011] As an improvement of the tungsten needle sharpening machine of the utility model which facilitates the disassembly and assembly of the grinding wheel, the processing end cover of the positioning seat is provided with an angle disk and forms a grinding chamber, the grinding wheel is accommodated in the grinding chamber, and the angle disk is provided with a variety of processing holes, and the various processing holes are connected to the grinding chamber.

[0012] As an improvement of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel, the positioning seat and the angle disk are covered together with a dust cover, and the positioning seat is sealed and connected to the dust cover via an O-ring.

[0013] As an improvement of the tungsten needle sharpening machine for convenient disassembly and assembly of the grinding wheel of the utility model, a plug hole is provided on the dust cover, and the plug hole is communicated with the grinding chamber through the processing hole.

[0014] As an improvement of the tungsten needle sharpening machine for convenient disassembly and assembly of the grinding wheel of the utility model, the rotating shaft is sealed and connected to the positioning seat through a wool pad, and the wool pad is sleeved on the rotating shaft and located between the locking hole and the grinding wheel.

[0015] As an improvement of the tungsten needle sharpening machine for convenient disassembly and assembly of the grinding wheel of the utility model, the rotating shaft is rotatably connected with the positioning seat through a bearing, and the wool pad is located between the grinding wheel and the bearing.

[0016] As an improvement of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel, the body assembly includes a body and a bearing cover, the output end of the body extends outward to form a bearing seat, the bearing cover is arranged on the bearing seat to form the drive compartment, and the positioning seat is superimposed on the bearing cover.

[0017] As an improvement of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel, a plurality of exhaust holes are arranged on the bearing cover, and the plurality of exhaust holes are communicated with the driving chamber.

[0018] Compared with the prior art, the tungsten needle sharpening machine of the utility model is convenient for disassembling and assembling the grinding wheel. A locking hole is set on the rotating shaft of the grinding wheel, and a plug-in hole corresponding to the position of the locking hole is pierced on the side wall of the positioning seat. It is only necessary to rotate the rotating shaft to align the locking hole with the plug-in hole, and then the disassembly rod can be inserted into the plug-in hole and the locking hole to prevent the rotating shaft from rotating. In combination with the disassembly groove for prying open the grinding wheel, the grinding wheel can be conveniently, quickly and simply disassembled and assembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional enlarged view of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel;

[0020] Figure 2 It is a three-dimensional enlarged view of the tungsten needle sharpening machine of the utility model, which is convenient for disassembling and assembling the grinding wheel, with the dust cover in the open state;

[0021] Figure 3 It is a three-dimensional exploded view of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel;

[0022] Figure 4 This is another three-dimensional exploded view of the convenient disassembly and assembly of the grinding wheel of the utility model;

[0023] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0024] Figure 6 It is a three-dimensional enlarged view of the angle plate of the utility model;

[0025] Figure 7 It is a main view and a partially cutaway enlarged view of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel;

[0026] Figure 8 It is a partial cross-sectional enlarged view of the tungsten needle sharpening machine of the utility model which is convenient for disassembling and assembling the grinding wheel.

[0027] Illustration Description:

[0028] 1. Body; 11. Bearing seat; 111. Body assembly; 12. Cooling fan; 13. Rotating shaft; 131. Bearing; 132. Wool pad; 133. Locking hole; 2. Grinding wheel; 21. Locking screw; 3. Bearing cover; 31. Exhaust hole; 32. Disassembly slot; 4. Positioning seat; 41. Plug hole; 42. Screw plug; 43. Processing slot; 5. O-ring; 6. Angle plate; 61. Sharpened processing hole; 62. Ground processing hole; 63. Cutting slot; 7. Dust cover; 71. Sharpened socket; 72. Ground socket; 8. Grinding chamber; 81. Drive chamber. DETAILED DESCRIPTION

[0029] The following is a detailed explanation of the implementation of the present invention in conjunction with the accompanying drawings. The accompanying drawings are for reference and illustration only and do not constitute a limitation on the scope of patent protection of the present invention.

[0030] Reference Figures 1 to 8 A tungsten needle sharpening machine for convenient disassembly and assembly of a grinding wheel comprises a body assembly 111, a positioning seat 4 and a grinding wheel 2. The positioning seat 4 is superimposed on the output end of the body assembly 111, the grinding wheel 2 is arranged on the top of the positioning seat 4, the rotating shaft 13 of the grinding wheel 2 passes through the positioning seat 4 and is rotatably connected to the body assembly 111, the rotating shaft 13 is provided with a locking hole 133 along its radial direction, and the side wall of the positioning seat 4 is penetrated with a plug-in hole 41 corresponding to the position of the locking hole 133 along its radial direction.

[0031] Reference Figure 2 , Figure 3 and Figure 8The body assembly 111 includes a body 1 and a bearing cover 3. The output end of the body 1 extends outward to form a bearing seat 11. The bearing cover 3 is covered on the bearing seat 11 to form a driving chamber 81. The positioning seat 4 is superimposed on the bearing cover 3.

[0032] Reference Figure 2 , Figure 3 and Figure 8 The top of the fuselage 1 is hollowed out, the fuselage 1 and the bearing seat 11 are coaxially arranged and the two are integrally formed, the top of the bearing seat 11 is hollowed out, a motor and a cooling fan 12 are arranged in the fuselage 1, the cooling fan 12 is located at the output end of the motor, the grinding wheel 2 and the cooling fan 12 are respectively located at both ends of the rotating shaft 13, the grinding wheel 2 and the cooling fan 12 are connected to the fuselage 1 synchronously through the rotating shaft 13, the motor can drive the rotating shaft 13 to rotate, and then drive the cooling fan 12 and the grinding wheel 2 to rotate synchronously, and the center of the grinding wheel 2 is fixed to the top of the rotating shaft 13 by a locking screw 21.

[0033] Reference Figures 1 to 3 The bearing cover 3 is provided with a plurality of exhaust holes 31 , which are connected to the driving chamber 81 . The top of the bearing cover 3 is hollowed out, and the rotating shaft 13 passes through the bearing cover 3 and is rotatably connected to the bearing cover 3 through a bearing 131 .

[0034] Reference Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 The positioning seat 4 is superimposed on the bearing cover 3. A processing groove 43 is provided on the top of the positioning seat 4. The grinding wheel 2 is located in the processing groove 43. Two disassembly grooves 32 are inclined at the edge of the processing groove 43. The two disassembly grooves 32 are arranged at intervals and are both located outside the grinding wheel 2. The problem that the grinding wheel 2 is locked and cannot be removed due to the long-term use of the sharpening machine is solved. The plug hole 41 on the side wall of the positioning seat 4 is threadedly connected with a screw plug 42 to prevent grinding powder from entering the positioning seat 4 from the plug hole 41, resulting in blockage of the bearing 131 on the rotating shaft 13. The rotating shaft 13 passes through the positioning seat 4. In this embodiment, two disassembly grooves 32 are preferably provided on the side wall of the positioning seat 4. The two plug-in holes 41 are coaxially arranged and correspond to the locking holes 133 on the rotating shaft 13, so that the disassembly of the grinding wheel 2 becomes simpler and faster. The rotating shaft 13 passes through the positioning seat 4 and is rotatably connected with the positioning seat 4 through two bearings 131. The locking hole 133 is located between the two bearings 131. In order to prevent the dust in the grinding chamber 8 from entering the driving chamber 81 from the rotating shaft 13, the rotating shaft 13 is sealed with the positioning seat 4 through a wool pad 132. The wool pad 132 is sleeved on the rotating shaft 13 and is located between the locking hole 133 and the grinding wheel 2. The wool pad 132 is located between the grinding wheel 2 and all the bearings 131.

[0035] Reference Figure 4 and Figure 6 The processing end of the positioning seat 4 is provided with an angle plate 6, and the angle plate 6 is covered on the positioning seat 4 to form a grinding chamber 8. The grinding wheel 2 is accommodated in the grinding chamber 8. The bottom of the angle plate 6 is hollowed out, and various processing holes are provided on the angle plate 6. The various processing holes are connected to the grinding chamber 8. The various processing holes are specifically multiple groups of sharpening processing holes 61 and multiple flattening processing holes 62, wherein the multiple groups of sharpening processing holes 61 are arranged at intervals on the side wall of the angle plate 6, and each group of sharpening processing holes 61 is arranged at intervals. In this embodiment, four groups of sharpening processing holes 61 are preferably used, and each group of sharpening processing holes 61 is preferably composed of four separate sharpening processing holes 61. The four groups of sharpening processing holes 61 can process 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 110°, 120°, 130°, 140°, 150°, 160°, 170°, 180°, 190°, 200°, 210°, 220°, 230°, 240°, 250°, 260°, 270°, 280°, 290°, 300°, 300°, 300°, 4 ... The angle disc 6 has sharp angles of 50°, 50° and 60°. The five sharpening processing holes 61 in the same group can be used to process tungsten needles with diameters of 2.4mm, 3.2mm, 4.0mm, 5.0mm and 6.0mm respectively. Each sharpening processing hole 61 is inclined. A plurality of flattening processing holes 62 are located on the top of the angle disc 6 and are arranged in a circle, which can be used to flatten tungsten needles with diameters of 2.4mm, 3.2mm, 4.0mm, 5.0mm and 6.0mm. In order to cut off the tungsten needle, the outer side walls of the angle disc 6 and the positioning seat 4 are also provided with notches and a certain cutting groove 63 is formed. The grinding wheel 2 is perpendicular to the cutting groove 63, and the tungsten needle extending into the cutting groove 63 can be cut off at the edge of the grinding wheel 2.

[0036] Reference Figure 2 and Figure 3 The positioning seat 4 and the angle disk 6 are jointly covered with a dust cover 7. The positioning seat 4 is sealed and connected to the dust cover 7 through an O-ring 5. The inner wall of the dust cover 7 presses against the O-ring 5 so that the dust cover 7 can be sealed and connected to the positioning seat 4. At the same time, the dust cover 7 is more firmly covered on the bearing cover 3. The dust cover 7 is provided with a socket, which is connected to the grinding chamber 8 through a processed hole. The socket of the dust cover 7 is specifically a flattened socket 72 and a sharpened socket 71. The flattened socket 72 is located at the top of the dust cover 7, and the sharpened socket 71 is located on the side wall of the dust cover 7. The upper end of the positioning seat 4 and the angle disk 6 are both located in the dust cover 7. The dust cover 7, the angle disk 6, the positioning seat 4, the bearing cover 3, the grinding wheel 2, the cooling fan 12 and the bearing seat 11 are all coaxially arranged with the fuselage 1.

[0037] Reference Figure 1 As for Figure 8 The method of using the tungsten needle sharpening machine for convenient disassembly and assembly of the grinding wheel is as follows:

[0038] The motor is started, and the motor drives the cooling fan 12 and the grinding wheel 2 to rotate synchronously. The heat generated in the driving chamber 81 is discharged to the outside of the sharpening machine through the exhaust hole 31 under the action of the cooling fan 12;

[0039] When sharpening is required, the dust cover 7 is rotated to align the sharpening insertion hole 71 of the dust cover 7 with a sharpening processing hole 61 of the angle plate 6, and the end of the tungsten needle to be processed is tilted through the sharpening insertion hole 71 and the sharpening processing hole 61 in sequence and extended into the grinding chamber 8, so that the end of the tungsten needle to be processed is tilted to press against the rotating grinding wheel 2, and the tungsten needle is rotated at the same time, so that the end of the tungsten needle to be ground can be sharpened;

[0040] When grinding is required, the dust cover 7 is rotated to align the grinding hole 72 of the dust cover 7 with one of the grinding holes 62 on the top of the angle plate 6, and the end of the tungsten needle to be processed is vertically passed through the grinding hole 72 and the grinding hole 62 in sequence and extended into the grinding chamber 8, so that the bottom of the tungsten needle is pressed against the rotating grinding wheel 2, and the bottom of the tungsten needle can be ground flat;

[0041] When cutting is required, open the dust cover 7, insert the tungsten needle to be cut into the cutting groove 63 on the side wall of the angle plate 6 and the positioning seat 4, and cut the tungsten needle by using the rotating grinding wheel 2;

[0042] When the grinding wheel 2 needs to be replaced, turn off the motor, remove the angle disk 6, rotate the grinding wheel 2 to align the locking hole 133 of the rotating shaft 13 with the plug-in hole 41, insert the disassembly rod (a long round rod) from the plug-in hole 41 into the locking hole 133 to prevent the rotating shaft 13 from rotating, unscrew the locking screw 21, and use the two disassembly grooves 32 on the positioning seat 4 to pry open the grinding wheel 2, so that the grinding wheel 2 can be taken out, and then a new grinding wheel 2 can be installed, and the locking screw 21 can be re-screwed, and the disassembly rod can be pulled out. The replacement of the grinding wheel 2 is completed, and the angle disk 6 can be re-installed for normal use.

[0043] The utility model discloses a tungsten needle sharpening machine which is convenient for disassembling and assembling the grinding wheel. An O-ring 5 is designed between the dust cover 7 and the positioning seat 4 to seal the dust cover 7 and the positioning seat 4. A wool pad 132 is then combined to seal the rotating shaft 13 and the positioning seat 4, thereby achieving complete isolation between the grinding chamber 8 and the driving chamber 81. This solves the problem that dust after grinding the tungsten needle enters the body component 111, causing damage to the bearing 131 and further causing damage to the motor, thereby greatly improving the service life and stability of the product.

[0044] The tungsten needle sharpening machine for convenient disassembly and assembly of the grinding wheel of the utility model solves the problem of no locking position when disassembling the grinding wheel 2 by setting a locking hole 133 on the rotating shaft 13 and a plug-in hole 41 on the positioning seat 4, so that the disassembly of the grinding wheel 2 becomes simpler and faster. At the same time, a disassembly groove 32 is added on the positioning seat 4 to solve the problem that the grinding wheel 2 is locked and cannot be taken out for a long time.

[0045] The above disclosure is only a preferred embodiment of the present invention, which cannot be used to limit the scope of protection of the present invention. Therefore, equivalent changes made within the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A tungsten needle sharpening machine with convenient disassembly and assembly of grinding wheel, comprising a machine body assembly, characterized in that: A positioning seat is superimposed on the output end of the body assembly, a grinding wheel is provided on the top of the positioning seat, a rotating shaft of the grinding wheel passes through the positioning seat and is rotatably connected to the body assembly, a locking hole is provided along the radial direction of the rotating shaft, and plug-in holes corresponding to the positions of the locking holes are penetrated on the side walls of the positioning seat along the radial direction, a disassembly groove is provided on the top of the positioning seat, and the disassembly groove is located outside the grinding wheel.

2. The tungsten needle sharpening machine with convenient disassembly and assembly of the grinding wheel according to claim 1 is characterized in that: The plugging hole is threadedly connected with a screw plug.

3. The tungsten needle sharpening machine with convenient disassembly and assembly of grinding wheel according to claim 1 is characterized in that: A processing groove is arranged on the top of the positioning seat, the grinding wheel is located in the processing groove, and the disassembly groove is arranged obliquely and is located at the edge of the processing groove.

4. The tungsten needle sharpening machine with convenient disassembly and assembly of grinding wheel according to claim 1, characterized in that: The processing end cover of the positioning seat is provided with an angle disc and forms a grinding chamber, the grinding wheel is accommodated in the grinding chamber, and the angle disc is provided with a variety of processing holes, and the various processing holes are connected to the grinding chamber.

5. The tungsten needle sharpening machine with convenient disassembly and assembly of the grinding wheel according to claim 4 is characterized in that: The positioning seat and the angle plate are covered with a dust cover, and the positioning seat is sealed and connected to the dust cover via an O-ring.

6. The tungsten needle sharpening machine with convenient disassembly and assembly of the grinding wheel according to claim 5, characterized in that: The dust cover is provided with an insertion hole, and the insertion hole is communicated with the grinding chamber through the processing hole.

7. The tungsten needle sharpening machine with convenient disassembly and assembly of the grinding wheel according to claim 1, characterized in that: The rotating shaft is sealed and connected to the positioning seat through a wool pad, and the wool pad is sleeved on the rotating shaft and located between the locking hole and the grinding wheel.

8. The tungsten needle sharpening machine with convenient disassembly and assembly of the grinding wheel according to claim 7, characterized in that: The rotating shaft is rotatably connected to the positioning seat through a bearing, and the wool pad is located between the grinding wheel and the bearing.

9. The tungsten needle sharpening machine with convenient disassembly and assembly of grinding wheel according to claim 1, characterized in that: The body assembly includes a body and a bearing cover, the output end of the body extends outward to form a bearing seat, the bearing cover is arranged on the bearing seat to form a driving compartment, and the positioning seat is superimposed on the bearing cover.

10. The tungsten needle sharpening machine with convenient disassembly and assembly of the grinding wheel according to claim 9, characterized in that: The bearing cover is provided with a plurality of exhaust holes, and the plurality of exhaust holes are communicated with the driving compartment.

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