Portable micro straight and bevel chamfering machine

Abstract

The utility model discloses a portable miniature curve straight chamfering machine, including the shell, the shell inside rotation is connected with the rotor, and the rotor one end is connected with the cutter bar output shaft, and the rotor surface is equipped with the vane, and the rotor and vane outside is equipped with the cylinder, and the cylinder is installed in the shell, the shell one end is equipped with the fixed base of thread, and the fixed base is equipped in the cutter bar output shaft outside, and the fixed base one end is equipped with the guide fitting of thread, and the guide fitting is pasted on the workpiece surface and carries out the orientation to the cutter bar output shaft. The utility model has the advantages of being convenient to use, solves the single function of the existing programming chamfering machine in the process of using, is inconvenient to replace the guide fitting, carries out the chamfering to the straight line and curve position, reduces the application range of the chamfering machine problem.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, specifically a portable miniature beveling machine. Background Technology

[0002] A pneumatic grinder is a tool that uses compressed air as a power source to drive a grinding head or grinding wheel at high speed to perform grinding, polishing, deburring, and finishing operations on the surface of a workpiece. It is widely used in metal processing, automotive repair, mold making, woodworking, and stone processing. A chamfering machine can perform chamfering on both curves and straight lines. By simply changing different guide accessories, it can handle various edge shapes such as straight lines, arcs, and irregular contours.

[0003] Existing chamfering machines have limited functionality and are not convenient for changing guide parts, thus limiting their application range for chamfering straight and curved lines. Utility Model Content

[0004] The purpose of this invention is to provide a portable miniature chamfering machine that is easy to use and solves the problems of existing chamfering machines having limited functionality, difficulty in replacing guide parts, and limited application range when chamfering straight and curved lines.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a portable miniature beveling and straightening machine, comprising a housing, a rotor rotatably connected inside the housing, a tool bar output shaft threadedly connected to one end of the rotor, blades mounted on the surface of the rotor, and a cylinder provided on the outside of the rotor and the blades, the cylinder being installed inside the housing;

[0006] One end of the outer shell is threaded with a fixing seat, which is sleeved on the outside of the tool bar output shaft. One end of the fixing seat is threaded with a guide accessory, which fits against the workpiece surface to guide the tool bar output shaft.

[0007] The guide fittings are either arc-shaped guide plates or straight-edge guide plates. Arc-shaped guide plates fit into curved workpieces, while straight-edge guide plates fit into flat workpieces.

[0008] As a preferred embodiment of this portable miniature chamfering machine, one end of the tool bar output shaft is fitted with a guide bearing. During chamfering, the guide bearing moves on the workpiece surface to guide the tool bar output shaft.

[0009] In a preferred embodiment of this portable miniature beveling and straightening machine, the output shaft of the tool holder has a mounting groove on its surface, and a cutting edge is provided inside the mounting groove. The beveling tool is installed in the mounting groove, and the cutting edge fixes the beveling tool.

[0010] In a preferred embodiment of this utility model, a first bearing is fitted on the left side of the rotor surface. The first bearing is installed inside the housing. A first washer and a second washer are fitted on the rotor surface. The first washer and the second washer are located on the opposite side of the first bearing and the cylinder. The surfaces of the first washer and the second washer are connected to the inner wall of the housing.

[0011] As a preferred embodiment of this portable miniature beveling and straightening machine, a second bearing is fitted on the right side of the rotor surface, a bearing seat is fitted on the surface of the second bearing, and the bearing seat is installed inside the outer casing.

[0012] As a preferred embodiment of this utility model of a portable miniature beveling and straightening machine, the cylinder surface is provided with air holes, and compressed air enters the cylinder through the air holes to drive the blades and rotor to rotate.

[0013] As a preferred embodiment of this portable miniature beveling and straightening machine, the other end of the outer casing is threaded with an air intake shaft.

[0014] As a preferred embodiment of this portable miniature beveling and straightening machine, the air intake shaft and the cylinder are provided with an air guide seat at opposite ends, and the air guide seat guides the air output from the air intake shaft into the surface of the cylinder.

[0015] As a preferred embodiment of this utility model of a portable miniature beveling and straightening machine, the surface of the air intake shaft is threaded with a switch valve body, and the surface of the air intake shaft and the inner wall of the switch valve body are provided with sealing rings.

[0016] As a preferred embodiment of this utility model of a portable miniature beveling and straightening machine, the air inlet at the right end of the air inlet shaft is threaded with an air inlet screw, and the air outlet at the right end of the air inlet shaft is equipped with a sound-absorbing mesh.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model employs a pneumatic motor system composed of a cylinder and a blade rotor. Compressed air drives the rotor to rotate at high speed, thereby driving the tool bar output shaft and the chamfering tool to work. It has the inherent advantages of pneumatic tools, such as smooth start-up, no burnout under overload, and explosion-proof safety. In particular, the whole machine integrates guide bearings and replaceable arc guide plates or straight edge guide plates, which can respectively conform to the edges of curved or flat workpieces, providing dual guidance support during the chamfering process. This significantly improves processing stability and chamfering accuracy, effectively solving the problems of easy shaking and inconsistent angles in traditional manual grinding. It is suitable for the fine chamfering requirements of complex contour workpieces.

[0019] 2. This utility model has optimized the structural layout and airflow path, and has good noise reduction and heat dissipation performance. After the compressed air is accurately guided into the cylinder through the air guide seat to do work, the exhaust gas is discharged in an orderly manner through the exhaust groove connected to the inner wall of the outer shell and the inside of the intake shaft, and finally released to the outside through the silencer, which greatly reduces the operating noise. At the same time, the switch valve body set on the intake shaft, together with the sealing ring and the air hole structure, can steplessly adjust the intake volume, thereby flexibly controlling the speed to adapt to different materials and chamfering requirements. The whole machine adopts a modular threaded connection design, which is easy to disassemble and maintain. It is small in size and light in weight, combining portability and professionalism. It is especially suitable for on-site maintenance, mold repair and high-precision chamfering operations in confined spaces. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ;

[0022] Figure 3 This is a cross-sectional view of the rotor of this utility model;

[0023] Figure 4 This is a schematic diagram of the straight-edge guide plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the intake shaft of this utility model.

[0025] In the diagram: 1. Guide bearing; 2. Arc guide plate; 3. Straight edge guide plate; 4. Positioning ring; 5. Fixing seat; 6. Housing; 7. Cutting insert; 8. Cutting bar output shaft; 9. First bearing; 10. First washer; 11. Second washer; 12. Cylinder; 13. Rotor; 14. Blade; 15. Second bearing; 16. Bearing housing; 17. Air guide seat; 18. Inlet shaft; 19. Sealing ring; 20. Switch valve body; 21. Silencing mesh; 22. Inlet screw; 23. Air vent. Detailed Implementation

[0026] Please see Figures 1-5 A portable miniature beveling machine includes a housing 6, a rotor 13 rotatably connected inside the housing 6, a tool bar output shaft 8 threadedly connected to one end of the rotor 13, blades 14 mounted on the surface of the rotor 13, and a cylinder 12 provided on the outside of the rotor 13 and the blades 14, the cylinder 12 being installed inside the housing 6.

[0027] Furthermore, a fixing seat 5 is threaded onto one end of the outer casing 6. The fixing seat 5 is fitted onto the outside of the tool bar output shaft 8. A guide accessory is threaded onto one end of the fixing seat 5. The guide accessory fits against the workpiece surface to guide the tool bar output shaft 8.

[0028] Furthermore, the guide fittings are either arc-shaped guide plates 2 or straight-edged guide plates 3. The arc-shaped guide plates 2 fit the curved workpiece, while the straight-edged guide plates 3 fit the flat workpiece.

[0029] Furthermore, a guide bearing 1 is fitted at one end of the tool bar output shaft 8. When chamfering is performed, the guide bearing 1 moves on the workpiece surface to guide the tool bar output shaft 8.

[0030] Furthermore, a mounting groove is provided on the surface of the tool bar output shaft 8, and a cutting insert 7 is provided inside the mounting groove. The chamfering tool is installed in the mounting groove, and the cutting insert 7 fixes the chamfering tool.

[0031] Furthermore, a first bearing 9 is fitted on the left side of the rotor 13 surface. The first bearing 9 is installed inside the housing 6. A first washer 10 and a second washer 11 are fitted on the surface of the rotor 13. The first washer 10 and the second washer 11 are located on the opposite side of the first bearing 9 and the cylinder 12. The surfaces of the first washer 10 and the second washer 11 are connected to the inner wall of the housing 6.

[0032] Furthermore, a second bearing 15 is fitted on the right side of the rotor 13 surface, and a bearing seat 16 is fitted on the surface of the second bearing 15. The bearing seat 16 is installed inside the housing 6.

[0033] Furthermore, the cylinder 12 has air holes on its surface, through which compressed air enters the cylinder 12 and drives the blades 14 and rotor 13 to rotate.

[0034] Furthermore, the other end of the housing 6 is threadedly connected to an air intake shaft 18.

[0035] Furthermore, an air guide seat 17 is provided at one end of the intake shaft 18 and the cylinder 12, which guides the air output from the intake shaft 18 into the surface of the cylinder 12.

[0036] Furthermore, a switch valve body 20 is threaded onto the surface of the intake shaft 18, and a sealing ring 19 is provided on the surface of the intake shaft 18 and the inner wall of the switch valve body 20.

[0037] Furthermore, an intake screw 22 is threadedly connected to the intake port on the right end of the intake shaft 18, and a silencer 21 is installed at the exhaust port on the right end of the intake shaft 18.

[0038] Furthermore, exhaust grooves are provided on the inner wall of the outer casing 6 and inside the intake shaft 18. After the compressed air inside the cylinder 12 drives the rotor 13 and blades 14, it is discharged through the air hole on the other side of the cylinder 12 surface. It first enters the exhaust groove on the inner wall of the outer casing 6, and then enters the exhaust groove inside the intake shaft 18. The exhaust groove inside the intake shaft 18 is connected to the silencer 21, and finally discharged to the outside through the silencer 21. The silencer 21 silences the discharged air and reduces the generation of noise.

[0039] Furthermore, two air holes 23 are opened on the surface of the intake shaft 18, and an air intake channel is opened at the right end of the intake shaft 18. The air intake channel is connected to the intake screw 22 and the air hole 23 at the right end. An air outlet channel is opened at the left end of the intake shaft 18. The air outlet channel is connected to the air guide seat 17 and the air hole 23 at the left end.

[0040] Furthermore, the sealing ring 19 is located between the two air holes 23 and fits against the inner wall of the switch valve body 20 to seal the passage between the two air holes 23.

[0041] When the intake air volume needs to be adjusted, the switch valve body 20 is rotated outward. The conical groove on the inner wall of the switch valve body 20 gradually disengages from the surface of the sealing ring 19, allowing the two air holes 23 to communicate and deliver compressed air.

[0042] During the operation, the guide bearing 1 is placed on the surface of the workpiece, and the arc guide plate 2 or the straight edge guide plate 3 is placed on the side of the workpiece to chamfer the surface of the workpiece.

[0043] After placement, compressed air enters the intake shaft 18 through the intake screw 22, and then enters the air guide seat 17 through the intake shaft 18. The air guide seat 17 guides the compressed air to the surface of the cylinder 12. The compressed air enters the cylinder 12 and drives the blade 14 and rotor 13 to rotate. The rotor 13 drives the tool bar output shaft 8 to rotate. The tool bar output shaft 8 drives the chamfering tool to rotate through the cutting edge 7. During the rotation of the chamfering tool, the edge of the workpiece is chamfered and ground.

[0044] The compressed air inside cylinder 12 is discharged through the exhaust port on the surface of cylinder 12 and enters the interior of intake shaft 18. It is then discharged into silencer 21 through intake shaft 18. Silencer 21 discharges the air to the outside, realizing the circulation of compressed air inside the chamfering machine.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable miniature beveling and straightening machine, comprising a housing (6), characterized in that: The outer shell (6) is rotatably connected to a rotor (13), one end of which is threaded to a tool bar output shaft (8). Blades (14) are mounted on the surface of the rotor (13), and a cylinder (12) is provided on the outside of the rotor (13) and the blades (14). The cylinder (12) is installed inside the outer shell (6). The outer shell (6) has a fixed seat (5) threaded on one end. The fixed seat (5) is sleeved on the outside of the tool bar output shaft (8). The fixed seat (5) has a guide accessory threaded on one end. The guide accessory fits against the workpiece surface to guide the tool bar output shaft (8). The guide fittings are either arc guide plates (2) or straight edge guide plates (3). The arc guide plates (2) fit the curved workpiece, and the straight edge guide plates (3) fit the flat workpiece.

2. The portable miniature chamfering machine according to claim 1, characterized in that: One end of the tool bar output shaft (8) is fitted with a guide bearing (1). When chamfering is performed, the guide bearing (1) moves on the workpiece surface to guide the tool bar output shaft (8).

3. A portable miniature chamfering machine according to claim 1, characterized in that: The output shaft (8) of the tool holder has an installation groove on its surface. The tool insert (7) is provided inside the installation groove. The chamfering tool is installed in the installation groove and the tool insert (7) fixes the chamfering tool.

4. A portable miniature chamfering machine according to claim 1, characterized in that: The rotor (13) is fitted with a first bearing (9) on the left side of its surface. The first bearing (9) is installed inside the housing (6). The rotor (13) is fitted with a first washer (10) and a second washer (11). The first washer (10) and the second washer (11) are located on the opposite side of the first bearing (9) and the cylinder (12). The surfaces of the first washer (10) and the second washer (11) are connected to the inner wall of the housing (6).

5. A portable miniature chamfering machine according to claim 1, characterized in that: The rotor (13) has a second bearing (15) fitted on the right side of its surface, and a bearing seat (16) is fitted on the surface of the second bearing (15). The bearing seat (16) is installed inside the outer casing (6).

6. A portable miniature chamfering machine according to claim 1, characterized in that: The cylinder (12) has air holes on its surface. Compressed air enters the cylinder (12) through the air holes and drives the blades (14) and rotor (13) to rotate.

7. A portable miniature chamfering machine according to claim 1, characterized in that: The other end of the outer casing (6) is threadedly connected to an air intake shaft (18).

8. A portable miniature chamfering machine according to claim 7, characterized in that: The intake shaft (18) and the cylinder (12) are provided with an air guide seat (17) at opposite ends. The air guide seat (17) guides the air output from the intake shaft (18) into the surface of the cylinder (12).

9. A portable miniature chamfering machine according to claim 8, characterized in that: The intake shaft (18) is threaded with a switch valve body (20), and a sealing ring (19) is provided on the surface of the intake shaft (18) and the inner wall of the switch valve body (20).

10. A portable miniature chamfering machine according to claim 9, characterized in that: The air intake port on the right end of the air intake shaft (18) is threaded with an air intake screw (22), and a silencer mesh (21) is installed on the air outlet on the right end of the air intake shaft (18).

Images