Electric file

Abstract

An electric file comprises a file body, wherein the file body is provided with a driving assembly and a transmission assembly, the transmission assembly is provided with a plurality of first file blades and a plurality of second file blades, the first file blades and the second file blades are arranged alternately, the first file blades and the second file blades move in opposite directions under the drive of the transmission assembly, the file body is covered with a cover plate on the first file blade and the second file blade, the cover plate is provided with a first pressing block abutting against the side wall of the first file blade or the second file blade, and the file body is provided with a second pressing block abutting against the side wall of the first file blade or the second file blade at a position opposite to the first pressing block. The present invention has the advantages of simple structure, reasonable design, convenient use, safety and reliability, high filing efficiency, etc.

Description

Technical Field

[0001] The invention relates to a file, in particular to an electric file. Background Art

[0002] In the process of metal processing, the application of files is very common. When trimming small errors of metal workpieces, manual files are often used for grinding and processing, which inevitably doubles the processing workload and consumes a lot of time. At the same time, the accuracy requirements when manually grinding and filing cannot be well guaranteed. In order to solve this problem, electric files driven by motors have appeared on the market, but the working directions of the file blades of the electric files currently used are all in the same direction, so when using the file, special tooling or manual work is required to fix the workpiece to avoid the workpiece being offset by the force of the file blade when the file is filed; and in order to ensure the efficiency of the file, multiple synchronous file blades are installed on the electric file, and the blades are easily elastically deformed when subjected to force during the grinding and filing, resulting in gaps between the blades, causing the debris generated during the grinding and filing to enter the gaps between the blades, thereby affecting the grinding and filing effect. When the force is too large during the grinding and filing, the blade will also break, which will not only cause the blade to be scrapped, but also cause damage to the operator. Summary of the invention

[0003] The purpose of the present invention is to solve the deficiencies of the prior art. The present invention provides an electric file which has a simple structure, reasonable design, convenient use, safety and reliability, and high grinding and filing efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an electric file, including a file main body, the file main body is provided with a driving assembly and a transmission assembly, the transmission assembly is provided with a plurality of first file blades and a plurality of second file blades, the first file blades and the second file blades are arranged alternately, the first file blade and the second file blade move in opposite directions under the drive of the transmission assembly, the file main body is covered with a cover plate on the first file blade and the second file blade, the cover plate is provided with a first pressing block abutting against the side wall of the first file blade or the second file blade, and the file main body is provided with a second pressing block abutting against the side wall of the first file blade or the second file blade relative to the first pressing block.

[0005] Preferably, the driving assembly includes a transmission motor and an intermediate gear group, the transmission motor is transmission-connected to the intermediate gear group, the intermediate gear group includes a driven gear and a reduction gear coaxially arranged, the first transmission gear is meshed with the reduction gear of the intermediate gear group, the transmission motor is arranged on the back of the file body, and the output gear of the transmission motor extends through the file body to the front of the file body and meshes with the driven gear.

[0006] Preferably, the transmission assembly comprises a first transmission gear and a second transmission gear, the first transmission gear and the second transmission gear are respectively arranged on both sides of the intermediate gear group, the first transmission gear is meshed with the intermediate gear group, and the second transmission gear is meshed with the first transmission gear, and a plurality of first swing arms and second swing arms are provided on both sides of the file body, the first swing arm is transmission-connected with the first transmission gear, and the second swing arm is transmission-connected with the second transmission gear; a first file blade is fixed between two adjacent first swing arms, and a second file blade is fixed between two adjacent second swing arms.

[0007] Preferably, the tail ends of the first swing arm and the second swing arm are staggered and riveted to the bottom of the file body by rivets; the first swing arm is provided with a first swing hole, the second swing arm is provided with a second swing hole, and the first swing hole and the second swing hole are both long holes; the first transmission gear is provided with a first eccentric column, the first eccentric column is provided with a first swing bearing matching the first swing hole, the second transmission gear is provided with a second eccentric column, the second eccentric column is provided with a second swing bearing matching the second swing hole.

[0008] Preferably, a first limit plate is fixed between two adjacent first swing arms, the first limit plate is provided with a first auxiliary hole having the same structure as the first swing hole, the first swing bearing is located in the first swing hole and the first auxiliary hole, the top end of the first limit plate is provided with a first V-shaped groove, and the tail end of the first file blade is provided with a first V-shaped block matching the first V-shaped groove.

[0009] Preferably, a second limit plate is fixed between two adjacent second swing arms, the second limit plate is provided with a second auxiliary hole having the same structure as the second swing hole, the second swing bearing is located in the second swing hole and the second auxiliary hole, a second V-shaped groove is provided at the top end of the second limit plate, and a second V-shaped block matching the second V-shaped groove is provided at the tail end of the second file blade.

[0010] Preferably, the file body is provided with an auxiliary seat recessed toward the first file blade or the second file blade relative to the first file blade or the second file blade, the cover plate is arranged on the auxiliary seat, a first mounting shaft is arranged on the cover plate, the first clamping block is arranged on the first mounting shaft, a second mounting shaft is arranged on the auxiliary seat, the second clamping block is arranged on the second mounting shaft, and the first clamping block and the second clamping block are bearings.

[0011] Preferably, the contour of the top end face of the auxiliary seat and the contours of the cutting edges of the first file blade and the second file blade are both arc-shaped structures with the rivet as the center, the contours of the end faces on both sides of the top end of the cover plate are the same as the contours of the cutting edges of the first file blade and the second file blade, and the height of the end face in the middle position of the top end of the cover plate relative to the rivet is less than the height of the cutting edge end faces of the first file blade and the second file blade relative to the rivet.

[0012] The present invention outputs power through a transmission motor, and transmits it to the first transmission gear and the second transmission gear after deceleration through an intermediate gear set, and then the first transmission gear and the second transmission gear drive the first swing arm and the second swing arm respectively connected thereto. Since the first transmission gear and the second transmission gear are meshed, the first swing arm and the second swing arm swing in opposite directions during operation, so the first swing arm and the second swing arm respectively drive the first file blade and the second file blade to move in opposite directions. Since the movement directions of the first file blade and the second file blade are opposite, two opposite directions can be generated during file grinding. The present invention also provides a second pressing block and a second pressing block on the file body and the cover plate respectively, and the first file blade and the second file blade are pressed by the second pressing block and the second pressing block to avoid the blades being elastically deformed and broken due to the force applied to the blades during filing, and also avoid the blades being elastically deformed and generating gaps between the blades due to the force applied to the blades during filing, so that the debris generated during filing enters the gaps between the blades, thereby affecting the filing effect. The present invention has the advantages of simple structure, reasonable design, convenient use, safety and reliability, high filing efficiency, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0014] Figure 2 is a side view of an embodiment of the present invention;

[0015] Figure 3 The present invention Figure 2 A magnified image of point A;

[0016] Figure 4 is an exploded view of a local structure of an embodiment of the present invention;

[0017] Figure 5 The present invention Figure 4 The enlarged view of point B;

[0018] Figure 6 The present invention Figure 4 Enlarged view of point C;

[0019] Figure 7 It is a top view of an embodiment of the present invention.

[0020] In the figure: 1. file body; 2. transmission motor; 3. intermediate gear set; 4. first transmission gear; 5. second transmission gear; 6. first swing arm; 7. second swing arm; 8. first file blade; 9. second file blade; 10. cover plate; 11. first clamping block; 12. second clamping block; 13. driven gear; 14. reduction gear; 15. output gear; 16. rivet; 17. first swing hole; 18. second swing hole; 19. first eccentric column; 20. first swing bearing; 21. second eccentric column; 22. second swing bearing; 23. first limit plate; 24. first auxiliary hole; 25. first V-shaped groove; 26. first V-shaped block; 27. second limit plate; 28. second auxiliary hole; 29. ​​second V-shaped groove; 30. second V-shaped block; 31. auxiliary seat; 32. first mounting shaft; 33. second mounting shaft. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0022] Example:

[0023] like Figures 1 to 7 An electric file shown includes a file body 1, the file body 1 is provided with a driving assembly and a transmission assembly, the transmission assembly is provided with a plurality of first file blades 8 and a plurality of second file blades 9, the first file blades 8 and the second file blades 9 are arranged alternately, the first file blades 8 and the second file blades 9 move in opposite directions under the drive of the transmission assembly, the file body 1 is covered with a cover plate 10 on the first file blade 8 and the second file blade 9, the cover plate 10 is provided with a first pressing block 11 abutting against the side wall of the first file blade 8 or the second file blade 9, and the file body 1 is provided with a second pressing block 12 abutting against the side wall of the first file blade 8 or the second file blade 9 relative to the first pressing block 11.

[0024] The driving assembly includes a transmission motor 2 and an intermediate gear set 3. The transmission motor 2 is transmission-connected to the intermediate gear set 3. The intermediate gear set 3 includes a driven gear 13 and a reduction gear 14 which are coaxially arranged for rotation. The transmission motor 2 is arranged on the back side of the file body 1. The output gear 15 of the transmission motor 2 extends through the file body 1 to the front side of the file body 1 and meshes with the driven gear 13.

[0025] The transmission assembly includes a first transmission gear 4 and a second transmission gear 5. The first transmission gear 4 and the second transmission gear 5 are respectively arranged on both sides of the intermediate gear set 3. The first transmission gear 4 is meshed with the reduction gear 14 of the intermediate gear set 3. The first transmission gear 4 is meshed with the intermediate gear set 3, and the second transmission gear 5 is meshed with the first transmission gear 4. Both sides of the file body 1 are provided with a plurality of first swing arms 6 and second swing arms 7. The tail ends of the first swing arms 6 and the second swing arms 7 are staggered and riveted to the bottom of the file body 1 by rivets 16. The first swing arms 6 is provided with a first swing hole 17, and the second swing hole 18 is provided on the second swing arm 7. The first swing hole 17 and the second swing hole 18 are both long holes. The first swing arm 6 is transmission-connected with the first transmission gear 4, and the second swing arm 7 is transmission-connected with the second transmission gear 5; the first transmission gear 4 is provided with a first eccentric column 19, and the first eccentric column 19 is provided with a first swing bearing 20 matching the first swing hole 17; the second transmission gear 5 is provided with a second eccentric column 21, and the second eccentric column 21 is provided with a second swing bearing 22 matching the second swing hole 18.

[0026] A first file blade 8 is fixed between two adjacent first swing arms 6, a first limiting plate 23 is fixed between two adjacent first swing arms 6, a first auxiliary hole 24 with the same structure as the first swing hole 17 is provided on the first limiting plate 23, the first swing bearing 20 is located in the first swing hole 17 and the first auxiliary hole 24, a first V-shaped groove 25 is provided at the top end of the first limiting plate 23, and a first V-shaped block 26 matching the first V-shaped groove 25 is provided at the tail end of the first file blade 8; a second file blade 9 is fixed between two adjacent second swing arms 7, a second limiting plate 27 is fixed between two adjacent second swing arms 7, a second auxiliary hole 28 with the same structure as the second swing hole 18 is provided on the second limiting plate 27, the second swing bearing 22 is located in the second swing hole 18 and the second auxiliary hole 28, a second V-shaped groove 29 is provided at the top end of the second limiting plate 27, and a second V-shaped block 30 matching the second V-shaped groove 29 is provided at the tail end of the second file blade 9; the first file blade 8 and the second file blade 9 are staggered with each other.

[0027] The file body 1 is provided with an auxiliary seat 31 which is recessed toward the first file blade 8 or the second file blade 9 relative to the first file blade 8 or the second file blade 9, the cover plate 10 is arranged on the auxiliary seat 31, the cover plate 10 is provided with a first mounting shaft 32, the first clamping block 11 is arranged on the first mounting shaft 32, the auxiliary seat 31 is provided with a second mounting shaft 33, the second clamping block 12 is arranged on the second mounting shaft 33, the first clamping block 11 and the second clamping block 12 are bearings; the contour of the top end face of the auxiliary seat 31 and the contour of the blade of the first file blade 8 and the second file blade 9 are both arc structures with the rivet 16 as the center of the circle, the contours of the end faces on both sides of the top end of the cover plate 10 are the same as the contours of the blade of the first file blade 8 and the second file blade 9, and the height of the end face at the middle position of the top end of the cover plate 10 relative to the rivet 16 is less than the height of the blade end faces of the first file blade 8 and the second file blade 9 relative to the rivet 16.

[0028] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. An electric file, comprising a file body (1), characterized in that: The file body (1) is provided with a driving assembly and a transmission assembly. The transmission assembly is provided with a plurality of first file blades (8) and a plurality of second file blades (9). The first file blades (8) and the second file blades (9) are arranged alternately. The first file blades (8) and the second file blades (9) move in opposite directions under the drive of the transmission assembly. The file body (1) is covered with a cover plate (10) on the first file blade (8) and the second file blade (9). The cover plate (10) is provided with a first pressing block (11) abutting against the side wall of the first file blade (8) or the second file blade (9). The file body (1) is provided with a second pressing block (12) abutting against the side wall of the first file blade (8) or the second file blade (9) at a position opposite to the first pressing block (11). The driving assembly comprises a transmission motor (2) and an intermediate gear set (3). The transmission motor (2) is transmission-connected to the intermediate gear set (3). The intermediate gear set (3) comprises a driven gear (13) and a reduction gear (14) coaxially arranged. The first transmission gear (4) The transmission motor (2) is arranged on the back of the file body (1); the output gear (15) of the transmission motor (2) passes through the file body (1) and extends to the front of the file body (1) to mesh with the driven gear (13); the transmission assembly comprises a first transmission gear (4) and a second transmission gear (5); the first transmission gear (4) and the second transmission gear (5) are arranged on both sides of the intermediate gear group (3); the first transmission gear (4) The first transmission gear (5) is meshed with the intermediate gear set (3); the second transmission gear (5) is meshed with the first transmission gear (4); a plurality of first swing arms (6) and second swing arms (7) are provided on both sides of the file body (1); the first swing arm (6) is transmission-connected to the first transmission gear (4); the second swing arm (7) is transmission-connected to the second transmission gear (5); a first file blade (8) is fixed between two adjacent first swing arms (6); and a second file blade (9) is fixed between two adjacent second swing arms (7).

2. The electric file according to claim 1, characterized in that: The tail ends of the first swing arm (6) and the second swing arm (7) are arranged alternately and are riveted to the bottom of the file body (1) by means of rivets (16); the first swing arm (6) is provided with a first swing hole (17); the second swing arm (7) is provided with a second swing hole (18); the first swing hole (17) and the second swing hole (18) are both long holes; the first transmission gear (4) is provided with a first eccentric column (19); the first eccentric column (19) is provided with a first swing bearing (20) matching the first swing hole (17); the second transmission gear (5) is provided with a second eccentric column (21); the second eccentric column (21) is provided with a second swing bearing (22) matching the second swing hole (18).

3. The electric file according to claim 2, characterized in that: A first limiting plate (23) is fixed between two adjacent first swing arms (6); a first auxiliary hole (24) having the same structure as the first swing hole (17) is provided on the first limiting plate (23); the first swing bearing (20) is located in the first swing hole (17) and the first auxiliary hole (24); a first V-shaped groove (25) is provided at the top end of the first limiting plate (23); and a first V-shaped block (26) matching the first V-shaped groove (25) is provided at the rear end of the first file blade (8).

4. The electric file according to claim 2, characterized in that: A second limiting plate (27) is fixed between two adjacent second swing arms (7); a second auxiliary hole (28) having the same structure as the second swing hole (18) is provided on the second limiting plate (27); the second swing bearing (22) is located in the second swing hole (18) and the second auxiliary hole (28); a second V-shaped groove (29) is provided at the top end of the second limiting plate (27); and a second V-shaped block (30) matching the second V-shaped groove (29) is provided at the rear end of the second file blade (9).

5. The electric file according to claim 1, characterized in that: The file body (1) is provided with an auxiliary seat (31) which is recessed in the direction of the first file blade (8) or the second file blade (9) relative to the first file blade (8) or the second file blade (9); the cover plate (10) is arranged on the auxiliary seat (31); the cover plate (10) is provided with a first mounting shaft (32); the first pressing block (11) is arranged on the first mounting shaft (32); the auxiliary seat (31) is provided with a second mounting shaft (33); the second pressing block (12) is arranged on the second mounting shaft (33); the first pressing block (11) and the second pressing block (12) are bearings.

6. The electric file according to claim 5, characterized in that: The contour of the top end surface of the auxiliary seat (31) and the contour of the blades of the first file blade (8) and the second file blade (9) are both arc-shaped structures with the rivet (16) as the center of the circle; the contours of the end surfaces on both sides of the top end of the cover plate (10) are the same as the contours of the blades of the first file blade (8) and the second file blade (9); the height of the end surface at the middle position of the top end of the cover plate (10) relative to the rivet (16) is less than the height of the blade end surfaces of the first file blade (8) and the second file blade (9) relative to the rivet (16).

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