Electric tool support

Abstract

The utility model discloses an electric tool support. Comprising a support, the support is provided with a rotating part capable of rotating relative to the support, the rotating part is provided with a first machine shell synchronously rotating with the rotating part, the first machine shell is rotationally connected with a first transmission shaft, and the first transmission shaft is provided with a cutting blade synchronously rotating with the first transmission shaft; the first driving unit is mounted on the bracket, is in transmission connection with the first transmission shaft through a transmission part, and is used for controlling the cutting blade to start and stop; and the second driving unit is installed on the support and is in transmission connection with the rotating piece through a transmission assembly so as to control the cutting blade to swing. The swing type cutting machine adopts a swing mode to feed, is higher in cutting efficiency, is favorable for prolonging the service life of a cutting blade, can be suitable for a cutting blade with a larger size, and is simple in overall structure and convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of power tool auxiliary tools technology, and in particular to a power tool bracket. Background Technology

[0002] In the prior art, wall cutting auxiliary devices generally include a track, a frame that can move on the track, and a cutting blade mounted on the frame. The movement of the frame on the track is generally controlled by a motor and related transmission components, while the angle adjustment of the cutting blade is controlled by a motor or a manual crank. For example, the published patent document CN219132809U is an electric type, and the published patent document CN218892085U is a manual type.

[0003] Whether electric or manual, the cutting disc rotates with the rotation of the shaft mounted on the frame, resulting in a small feed radius and low actual cutting efficiency. Therefore, the applicant has filed this application. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a power tool holder that uses a swing-type feed method, resulting in higher cutting efficiency.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A power tool holder, comprising

[0007] A bracket is provided with a rotating component that can rotate relative to it. A first housing that rotates synchronously with the rotating component is provided with the rotating component. A first drive shaft is rotatably connected to the first housing. A cutting blade that rotates synchronously with the first drive shaft is mounted on the first drive shaft.

[0008] A first drive unit, mounted on the bracket and connected to the first drive shaft via a transmission component, is used to control the start and stop of the cutting blade; and

[0009] The second drive unit is mounted on the bracket and is connected to the rotating component via a transmission assembly to control the oscillation of the cutting blade.

[0010] In the above technical solution, preferably, a circular connector is fixed on the bracket, and the rotating component is a ring gear, the inner ring of which is adapted to the outer ring wall of the circular connector to rotate along the outer ring wall of the circular connector.

[0011] In the above technical solution, preferably, the circular connecting member is a bearing.

[0012] In the above technical solution, preferably, the output shaft of the first drive unit passes through the circular connector and extends into the first housing, and the transmission component is a belt or chain.

[0013] In the above technical solution, preferably, a tensioning wheel for tensioning the transmission component is also provided inside the first housing.

[0014] In the above technical solution, preferably, the first housing includes a protruding edge that fits against the side wall of the rotating component, and the protruding edge is fixed to the rotating component by fasteners.

[0015] In the above technical solution, preferably, the transmission component includes a first worm gear, a first worm, and a pinion that rotate synchronously with the first worm gear. The pinion is rotatably mounted on the bracket and is connected to the rotating component in a transmission manner.

[0016] In the above technical solution, preferably, a second housing is fixed on the bracket, the first worm gear and the first worm are arranged inside the second housing, and the first worm is connected to the output shaft of the second drive unit for transmission.

[0017] A second drive shaft is rotatably mounted on the second housing, with one end extending outside the second housing. The first worm gear is arranged on the part of the second drive shaft located inside the second housing, and the pinion is arranged on the part of the second drive shaft located outside the second housing.

[0018] In the above technical solution, preferably, it further includes a guide rail and a third housing that is slidably disposed on the guide rail, and the bracket is fixedly disposed on the third housing.

[0019] In the above technical solution, preferably, a third drive unit and a fourth housing are installed on the third housing. The third drive unit is connected to a second worm gear arranged inside the fourth housing. The second worm gear is connected to a second worm wheel arranged inside the fourth housing. A third drive shaft is rotatably arranged on the fourth housing. The second worm wheel is fixed on the third drive shaft. One end of the third drive shaft extending outside the fourth housing includes a gear that meshes with a rack on the guide rail, so as to drive the cutting blade forward or backward through the third drive unit.

[0020] The beneficial effects of this utility model are:

[0021] This invention employs a swing-type feed method, resulting in higher cutting efficiency, which helps extend the service life of the cutting disc. It is also suitable for larger cutting discs and features a simple overall structure and convenient operation. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the transmission cooperation between the third drive unit and the guide rail of this utility model.

[0024] Figure 3 This is a schematic diagram showing the cooperation between the second drive unit and the transmission assembly of this utility model.

[0025] Figure 4 This is a schematic diagram of the transmission and cooperation between the first drive unit and the cutting blade of this utility model.

[0026] Figure 5 This is a schematic diagram showing the fit between the rotating component and the first housing of this utility model.

[0027] Figure 6 This is a schematic diagram showing the fit between the rotating component and the circular connecting component of this utility model.

[0028] Figure 7 This is a schematic diagram of the bracket of this utility model. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:

[0030] See Figures 1-7 A power tool bracket includes a bracket 1, the bracket 1 having a vertical wall 11, a through hole 111 on the vertical wall 11, and a first drive unit 2 mounted on one side of the vertical wall 11. In one embodiment, the first drive unit 2 is a motor, which is fixed to one side of the vertical wall 11 of the bracket 1 by fasteners, and its output shaft passes through the through hole 111 and extends to the other side of the bracket 1.

[0031] In this embodiment, a circular connector 3 is installed on the other side of the facade wall 11. As one implementation, the circular connector 3 is fixed to the other side of the facade wall 11 of the bracket 1 by fasteners. Of course, the output shaft of the first drive unit 2 also passes through the circular connector 3, that is, the circular connector 3 also has a hole for the output shaft of the first drive unit 2 to pass through.

[0032] In this embodiment, a rotating member 4 is fitted on the circular connector 3. The rotating member 4 can rotate along the outer ring wall of the circular connector 3. As one implementation, the rotating member 4 is a ring gear, and its inner ring is adapted to the outer ring wall of the circular connector 3 so as to rotate along the outer ring wall of the circular connector 3.

[0033] The circular connector 3 only needs to enable the rotating part 4 to rotate on it. Specifically, it can be a common component in the prior art, such as a bearing for the circular connector 3.

[0034] In this embodiment, a first housing 5 that rotates synchronously with the rotating component 4 is mounted on the rotating component 4. As one implementation, the first housing 5 includes a protruding edge 51 that fits against the side wall of the rotating component 4. The protruding edge 51 is fixed to the rotating component 4 by fasteners.

[0035] The first housing 5 includes an inner cavity. The output shaft of the first drive unit 2 extends to the lower part of the inner cavity of the first housing 5. A first transmission shaft 52 is rotatably arranged at the upper part of the inner cavity of the first housing 5. The first transmission shaft 52 and the output shaft of the first drive unit 2 are connected by a transmission component (not shown in the figure). The transmission component can be a belt or a chain, so that the first drive unit 2 can control the rotation of the first transmission shaft 52.

[0036] Furthermore, one end of the drive shaft passes through the wall of the first housing 5 and extends to the outside of the first housing 5. A cutting blade 53 that rotates synchronously with it is installed on the part located outside the first housing 5. Thus, after the first drive unit 2 is started, the cutting blade 53 rotates and works. That is, the first drive unit 2 is used to control the start and stop of the cutting blade 53.

[0037] Of course, pulleys or sprockets 54 can be further provided on the output shaft of the first drive unit 2 and the first transmission shaft 52 to adapt to belts or chains, so as to improve the stability of transmission.

[0038] Furthermore, a tensioning wheel 55 for tensioning transmission components can be provided inside the first housing 5. The tensioning wheel 55 abuts against the inside of the belt or chain to prevent it from loosening or to adjust the tension as needed. For the specific adjustment method of the tensioning wheel 55, please refer to the existing design, which will not be elaborated further.

[0039] The above text describes the start and stop components of the cutting disc 53. The specific details of how the cutting disc 53 oscillates and feeds are explained below.

[0040] In this embodiment, a second drive unit 61 and a second housing 62 are installed on the bracket 1. The second drive unit 61 may be a motor, which may be fixed on the bracket 1 or fixed on the second housing 62. An extension wall 13 may be formed on one side of the vertical wall 11 of the bracket 1. The second housing 62 is fixed on the extension wall 13 to avoid the first drive unit 2 and to place it on one side of the first drive unit 2.

[0041] In this embodiment, the second drive unit 61 is connected to the rotating part 4 (ring gear) through a transmission assembly, driving the rotating part 4 to rotate. Since the first housing 5 is fixed on the rotating part 4, the first housing 5 and the cutting blade 53 swing when the rotating part 4 rotates. That is, the first housing 5 can be understood as a swing arm, which controls the cutting blade 53 to feed with a large swing motion. This feeding angle has higher cutting efficiency.

[0042] The transmission assembly includes a first worm gear 63, a first worm 64, and a pinion 65 that rotates synchronously with the first worm gear 63. The pinion 65 is connected to the rotating component 4 (ring gear).

[0043] Specifically, the second housing 62 has an inner cavity, and the first worm gear 63 and the first worm 64 are both arranged inside the second housing 62. If the first worm 64 is arranged longitudinally inside the second housing 62, its lower end cooperates with the bearing provided on the second housing 62 so that it can rotate inside the second housing 62, and its upper end is connected to the output shaft of the second drive unit 61 for transmission. If it is directly fixed to the output shaft of the second drive unit 61 or connected through a keyway or other means, it is sufficient that the second drive unit 61 can drive the first worm 64 to rotate.

[0044] The first worm gear 63 is arranged laterally inside the second housing 62. A second drive shaft 66 is rotatably mounted inside the second housing 62. One end of the second drive shaft 66 is engaged with a second bearing mounted on the second housing 62, and the other end is engaged with a third bearing mounted on the second housing 62 and extends outside the second housing 62. The first worm gear 63 is mounted on the second drive shaft 66 and rotates synchronously with it, such as by means of a keyway.

[0045] The pinion 65 is mounted on the part of the second drive shaft 66 located outside the second housing 62 and rotates synchronously with the second drive shaft 62, such as by means of a keyway.

[0046] Therefore, after the second drive unit 61 is started, the rotating part 4 (ring gear) can be controlled to rotate so that the cutting disc 53 swings and feeds.

[0047] For the forward and backward movement of the cutting blade 53, this embodiment also includes a guide rail 7 and a third housing 8 slidably disposed on the guide rail 7. The horizontal wall 12 of the bracket 1 is fixed on the third housing 8. For the sliding cooperation relationship between the third housing 8 and the guide rail 7, please refer to the published patent document CN 222079194 U.

[0048] Specifically, a third drive unit 81 and a fourth housing 82 are installed on the third housing 8. The third drive unit 81 is connected to a second worm gear 83 arranged inside the fourth housing 82. The second worm gear 83 is connected to a second worm wheel 84 arranged inside the fourth housing 82. A third drive shaft 85 is rotatably mounted on the fourth housing 82. The second worm wheel 84 is fixed on the third drive shaft 85. One end of the third drive shaft 85 extending outside the fourth housing 82 includes a gear 86 that meshes with a rack 71 on the guide rail 7, so as to drive the cutting blade 53 forward or backward through the third drive unit 81.

[0049] For the specific cooperation relationship between the second worm gear 84, the second worm 83, the third drive shaft 85 and the fourth housing 82, please refer to the cooperation relationship between the first worm gear 63, the first worm 64, the second drive shaft 66 and the second housing 62 mentioned above.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A power tool stand, characterized by: include A bracket is provided with a rotating component that can rotate relative to it. A first housing that rotates synchronously with the rotating component is provided with the rotating component. A first drive shaft is rotatably connected to the first housing. A cutting blade that rotates synchronously with the first drive shaft is mounted on the first drive shaft. A first drive unit, mounted on the bracket and connected to the first drive shaft via a transmission component, is used to control the start and stop of the cutting blade. as well as The second drive unit is mounted on the bracket and is connected to the rotating component via a transmission assembly to control the oscillation of the cutting blade.

2. The power tool holder according to claim 1, characterized in that: A circular connector is fixed on the bracket, and the rotating component is a ring gear, the inner ring of which is adapted to the outer ring wall of the circular connector to rotate along the outer ring wall of the circular connector.

3. A power tool holder according to claim 2, characterized in that: The circular connector is a bearing.

4. A power tool holder according to claim 2 or 3, characterized in that: The output shaft of the first drive unit passes through the circular connector and extends into the first housing, and the transmission component is a belt or chain.

5. A power tool holder according to claim 4, characterized in that: The first housing is also equipped with a tensioning wheel for tensioning the transmission component.

6. A power tool holder according to claim 1, characterized in that: The first housing includes a protruding edge that fits against the side wall of the rotating component, and the protruding edge is fixed to the rotating component by fasteners.

7. A power tool holder according to claim 2 or 3, characterized in that: The transmission assembly includes a first worm gear, a first worm, and a pinion that rotate synchronously with the first worm gear. The pinion is rotatably mounted on the bracket and is connected to the rotating component.

8. A power tool holder according to claim 7, characterized in that: A second housing is fixed on the bracket, and the first worm gear and the first worm are arranged inside the second housing. The first worm is connected to the output shaft of the second drive unit. A second drive shaft is rotatably mounted on the second housing, with one end extending outside the second housing. The first worm gear is arranged on the part of the second drive shaft located inside the second housing, and the pinion is arranged on the part of the second drive shaft located outside the second housing.

9. A power tool holder according to claim 1, characterized in that: It also includes a guide rail and a third housing that is slidably disposed on the guide rail, and the bracket is fixed to the third housing.

10. A power tool holder according to claim 9, characterized in that: A third drive unit and a fourth housing are mounted on the third housing. The third drive unit is connected to a second worm gear arranged inside the fourth housing. The second worm gear is connected to a second worm wheel arranged inside the fourth housing. A third drive shaft is rotatably mounted on the fourth housing. The second worm wheel is fixed on the third drive shaft. One end of the third drive shaft extending outside the fourth housing includes a gear that meshes with a rack on the guide rail, so as to drive the cutting blade forward or backward through the third drive unit.

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