Metal block chamfering jig

Abstract

The utility model discloses a metal block chamfering jig which comprises a base and a workpiece. A mounting base is rotationally arranged on the base; a fixing assembly is arranged on the mounting base and comprises a stand column, a mounting groove is formed in the stand column, a driving motor is arranged in the mounting groove, a transmission shaft is arranged at the output end of the driving motor, and a gear is arranged at the upper end of the transmission shaft; two sliding strips are arranged at the upper end of the stand column in a sliding mode, sliding limiting structures are arranged between the sliding strips and the stand column, and tooth grooves capable of being meshed with the gears are formed in the opposite side faces of the sliding strips. The ends, away from each other, of the sliding strips are provided with extrusion strips. The tool can be fixed from the inner side of a workpiece, the external space is saved, and chamfering tools such as a milling cutter can work conveniently; the metal pipe fitting with any inner diameter can be limited and fixed, and the applicability is high; the base can be fixed to machining parts such as a lathe and can also be directly detached, maintained and replaced, and the flexibility is high.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, and specifically refers to a chamfering fixture for metal blocks. Background Technique

[0002] Chamfering refers to the machining of cutting the edges of a workpiece into a certain inclined plane in metal processing. It is to remove the burrs generated by machining on the part and also to facilitate the assembly of the part. Generally, chamfers are made at the ends of the workpiece. In addition to removing burrs and facilitating assembly, it can also reduce the harm of sharp edges, improve the appearance, and enhance the durability of the object.

[0003] The chamfer can be a right-angled inclined plane, or a semi-circular or other curved chamfer, depending on the design requirements and application scenarios. In the prior art, common metal chamfering devices generally fix and drive rotation or linear motion on the outside of the metal part, and then use tools such as rotating milling cutters to grind the chamfer. However, for hollow metal pipe fittings, it is inconvenient to apply force to clamp from the outside. When the force is too small, the metal pipe fitting is likely to slip off, and when the force is too large, the pipe fitting is likely to be deformed, so there is room for improvement. Content of the Utility Model

[0004] The utility model aims to solve the technical problem of the inconvenience in chamfering hollow metal pipe fittings existing in the above prior art, and provides a chamfering fixture for metal blocks.

[0005] To solve the above technical problem, the technical solution provided by the utility model is: a chamfering fixture for metal blocks, including a base and a workpiece; a mounting base is rotatably arranged on the base, and a rotating structure is arranged between the mounting base and the base;

[0006] A fixing component is arranged on the mounting base. The fixing component includes a column. An installation groove is arranged on the column. A driving motor is arranged in the installation groove. A transmission shaft is arranged at the output end of the driving motor. A gear is arranged at the upper end of the transmission shaft. Two sliding bars are slidably arranged at the upper end of the column. Sliding limit structures are arranged between the sliding bars and the column. Tooth grooves capable of meshing with the gear are arranged on the opposite sides of the sliding bars. Extrusion bars are arranged at the mutually remote ends of the sliding bars. The extrusion bars are all arc-shaped and are all in contact with the inner side surface of the workpiece.

[0007] Preferably, the rotating structure includes a motor arranged at the middle end of the lower surface of the base. A rotating shaft is arranged at the output end of the motor. A mounting plate is arranged at the upper end of the rotating shaft. The mounting plate is detachably connected to the mounting base through bolts.

[0008] Preferably, a plurality of supports are arranged on the base. Spherical grooves are arranged at the upper ends of the supports. Ball bearings are rotatably arranged in the spherical grooves. The upper ends of the ball bearings are all tangent to the mounting base.

[0009] Preferably, threaded mounting holes are provided at all four corners of the base.

[0010] Preferably, rubber pads are provided on the sides of the extrusion strips that are away from each other.

[0011] Preferably, the sliding limit structure includes limit sliders provided at the lower ends of the sliding strips, and limit sliding grooves capable of slidingly connecting with the limit sliders are provided on the columns; the cross-sections of the limit sliders and the limit sliding grooves are both T-shaped.

[0012] The advantages of the present utility model compared with the prior art are as follows: It can be fixed from the inside of the workpiece, saving external space and facilitating the operation of chamfering tools such as milling cutters; it can limit and fix metal pipe fittings with any inner diameter, with strong applicability; the base can be fixed at the processing parts such as lathes, or can be directly disassembled for maintenance and replacement, with high flexibility. Description of the Drawings

[0013] Figure 1 is a structural schematic diagram of the present utility model.

[0014] Figure 2 is an exploded view of the structure of the present utility model.

[0015] Figure 3 is a top view of the present utility model.

[0016] Figure 4 is a structural schematic diagram of the fixing component of the present utility model.

[0017] As shown in the figure: 1. Base, 2. Workpiece, 3. Mounting base, 4. Rotating shaft, 5. Mounting plate, 6. Support, 7. Ball, 8. Threaded mounting hole, 9. Column, 10. Mounting groove, 11. Driving motor, 12. Gear, 13. Sliding strip, 14. Extrusion strip, 15. Rubber pad, 16. Limit slider, 17. Limit sliding groove. Detailed Description of the Embodiment

[0018] The following further describes the present utility model in detail with reference to the drawings.

[0019] Embodiment 1, in combination with the attached Figure 1 , 2 , a chamfering jig for metal blocks, including a base 1 and a workpiece 2. Threaded mounting holes 8 are provided at all four corners of the base 1, which is convenient for installation on an operating machine or other processing positions; a mounting base 3 is rotatably provided on the base 1, and a rotating structure is provided between the mounting base 3 and the base 1; the rotating structure includes a motor provided at the middle end of the lower surface of the base 1, the output end of the motor is provided with a rotating shaft 4, the upper end of the rotating shaft 4 is provided with a mounting plate 5, and the mounting plate 5 is detachably connected to the mounting base 3 through bolts; the workpiece 2 can be rotated for chamfering through the rotating structure.

[0020] In combination with the attached Figure 1 , 2, 3. There are several supports 6 provided on the base 1. The upper ends of the supports 6 are all provided with spherical grooves. Ball bearings 7 are rotatably arranged in the spherical grooves. The upper ends of the ball bearings 7 are all tangent to the mounting base 3. Thus, under the condition of not affecting the rotation of the mounting base 3, it can play a supporting role and make its rotation stable.

[0021] Combined with the attached Figure 1 , 2 , 3, 4. There is a fixing component provided on the mounting base 3. The fixing component includes a column 9. There is a mounting groove 10 provided on the column 9. A driving motor 11 is arranged in the mounting groove 10. A transmission shaft is provided at the output end of the driving motor 11. A gear 12 is provided at the upper end of the transmission shaft; Two sliding strips 13 are slidably arranged at the upper end of the column 9. Sliding limit structures are provided between the sliding strips 13 and the column 9. Tooth grooves capable of meshing with the gear 12 are provided on the opposite sides of the sliding strips 13. Thus, the gear 12 can drive the sliding strips 13 to move away from each other through the meshing tooth grooves; Extrusion strips 14 are provided at the mutually remote ends of the sliding strips 13. The extrusion strips 14 are all arc-shaped and are all in contact with the inner side surface of the workpiece 2, facilitating the extrusion of the workpiece 2; Rubber pads 15 are provided on the mutually remote sides of the extrusion strips 14 to increase the friction force and make the extrusion tighter.

[0022] Combined with the attached Figure 2 , the sliding limit structure includes limit sliders 16 provided at the lower ends of the sliding strips 13. Limit sliding grooves 17 capable of slidably connecting with the limit sliders 16 are provided on the column 9; The cross-sections of the limit sliders 16 and the limit sliding grooves 17 are both T-shaped, so that the sliding strips 13 can only move without coming off, and the moving path is restricted, thus the movement is more stable and not easy to deviate.

[0023] The working principle of the present utility model: During use, the base plate 1 can be installed at any required position through the threaded mounting holes 8, leaving an installation space for the motor at the lower end of the base plate 1 during installation; The metal pipe workpiece 2 to be processed is sleeved outside the column 9. The driving motor 11 drives the transmission shaft and the gear 12 to rotate, and drives the sliding strips 13 to move through the meshing tooth grooves. Thus, the extrusion strips 14 at both ends of the sliding strips 13 respectively press against two opposite positions on the inner side of the workpiece 2. The rubber pads 15 can increase the friction force during pressing, and the rubber pads 15 themselves can deform, making the pressing tighter; During operation, the workpiece 2 can rotate along with the mounting base 3. At this time, the motor drives the mounting base 3 to rotate through the rotating shaft 4 and the mounting plate 5. The ball bearings 7 can increase the supporting force under the condition of not affecting the rotation, making the rotation of the mounting base 3 more stable.

[0024] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A chamfering fixture for metal blocks, comprising a base (1) and a workpiece (2); characterized in that: A mounting base (3) is rotatably provided on the base (1), and a rotating structure is provided between the mounting base (3) and the base (1). A fixing component is provided on the mounting base (3). The fixing component includes a column (9). An installation groove (10) is provided on the column (9). A driving motor (11) is provided in the installation groove (10). A transmission shaft is provided at the output end of the driving motor (11). A gear (12) is provided at the upper end of the transmission shaft. Two sliding bars (13) are slidably provided at the upper end of the column (9). Sliding limiting structures are provided between the sliding bars (13) and the column (9). Tooth grooves capable of meshing with the gear (12) are provided on the opposite side surfaces of the sliding bars (13). Extrusion bars (14) are provided at the mutually remote ends of the sliding bars (13). The extrusion bars (14) are all arc-shaped and are all in contact with the inner side surface of the workpiece (2).

2. The chamfering fixture for metal blocks according to claim 1, wherein: The rotating structure includes a motor provided at the middle end of the lower surface of the base (1). A rotating shaft (4) is provided at the output end of the motor. A mounting plate (5) is provided at the upper end of the rotating shaft (4). The mounting plate (5) is detachably connected to the mounting base (3) by bolts.

3. The chamfering fixture for a metal block according to claim 1, characterized in that: A plurality of supports (6) are provided on the base (1). Spherical grooves are provided at the upper ends of the supports (6). Ball bearings (7) are rotatably provided in the spherical grooves. The upper ends of the ball bearings (7) are all tangent to the mounting base (3).

4. A chamfering fixture for a metal block according to claim 1, characterized in that: Threaded mounting holes (8) are provided at the four corners of the base (1).

5. A chamfering fixture for a metal block according to claim 1, characterized in that: Rubber pads (15) are provided on the mutually remote side surfaces of the extrusion bars (14).

6. The chamfering fixture for a metal block according to claim 1, wherein: The sliding limiting structure includes limiting sliders (16) provided at the lower ends of the sliding bars (13). Limiting sliding grooves (17) capable of slidingly connecting with the limiting sliders (16) are provided on the column (9). The cross sections of the limiting sliders (16) and the limiting sliding grooves (17) are both T-shaped.

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