Electric shock prevention electric angle grinder with multidirectional positioning function

Abstract

The invention discloses a multi-directional positioning electric shock prevention electric angle grinder, and particularly relates to the technical field of angle grinding devices.The multi-directional positioning electric shock prevention electric angle grinder comprises an insulating shell, an angle adjusting piece rotationally connected with the front end of the insulating shell is arranged in an inner cavity of a mounting chamber, and an angle grinding structure slidably connected with an inner cavity of a processing chamber is arranged on the outer surface of the angle adjusting piece; a driving structure in transmission connection with the angle grinding structure is arranged on the rear portion of the left end of the insulating shell, and a positioning adjusting structure fixedly connected with the top wall of the inner cavity of the shielding door is arranged on the bottom wall of the inner cavity of the processing chamber. According to the electric angle grinder with the multi-directional positioning and electric shock prevention functions, the action angle of the angle grinding structure can be adjusted through the angle adjusting part, so that the angle grinding structure is switched between cutting and grinding at different angles, a workpiece needing to be machined can be clamped and positioned by synchronously utilizing the action of the positioning adjusting structure, and the machining efficiency is improved. And workpiece loss caused by influence on cutting precision due to deviation of the workpiece in the treatment process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of angle grinding devices, and in particular to an electric angle grinder with multi-directional positioning and electric shock protection. Background Art

[0002] In the field of modern industrial production and construction, electric angle grinders are an important power tool that is widely used and indispensable. However, with the increase in frequency of use, traditional electric angle grinders have gradually exposed some problems in terms of safety.

[0003] Angle grinders generally rely on mains electricity. If a short circuit or line damage occurs, there is a risk of electric shock. Moreover, the existing angle grinding devices can basically only rely on grinding wheels for grinding, and are less applicable to other operations and have a smaller scope of application; During the grinding process, it is generally fixed manually or by a vise, and the fixing operation is cumbersome and has poor stability, and it is not easy to position and adjust. Summary of the invention

[0004] The main purpose of the present invention is to provide an electric angle grinder with multi-directional positioning to prevent electric shock, which can effectively solve the problems of small application range and inconvenient adjustment and positioning of existing angle grinding devices.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: An electric angle grinder with multi-directional positioning and electric shock protection, comprising an insulating shell, the inner cavity of the insulating shell being divided into a processing chamber and an installation chamber by a partition, the front portion of the inner surface of the processing chamber being rotatably connected to a shielding door, the lower portion of the front end of the shielding door being fixedly connected to a control terminal, the inner cavity of the installation chamber being provided with an angle adjustment member rotatably connected to the front end of the insulating shell, the outer surface of the angle adjustment member being provided with an angle grinding structure slidably connected to the inner cavity of the processing chamber, the rear portion of the left end of the insulating shell being provided with a driving structure transmission-connected to the angle grinding structure, and the bottom wall of the inner cavity of the processing chamber being provided with a positioning adjustment structure fixedly connected to the inner cavity top wall of the shielding door.

[0006] Preferably, the angle adjustment member includes a hand-cranked wheel rotatably connected to the front end of the insulating shell, the rear end of the hand-cranked wheel is fixedly connected to a transmission shaft 2, an end of the transmission shaft 2 away from the hand-cranked wheel passes through the front end of the insulating shell, extends to the inner cavity of the installation chamber and is fixedly connected to a bevel gear set 1, the inner surface of the output wheel of the bevel gear set 1 is fixedly connected to a threaded rod 1 threadedly connected to the angle grinding structure, and the lower part of the outer surface of the threaded rod 1 is rotatably connected to a load-bearing bearing fixedly connected to the bottom wall of the inner cavity of the installation chamber.

[0007] Preferably, the driving structure includes a limiting groove symmetrically opened at the front and rear end of the left end of the insulating shell and a shielding box fixedly connected to the left end of the insulating shell. The inner surfaces of the two limiting grooves are commonly connected with a U-shaped bracket through a pulley sliding connection. The end of the U-shaped bracket away from the insulating shell is fixedly connected with a driving motor. The output end of the driving motor passes through the left end of the insulating shell and extends to the inner cavity of the processing chamber and is transmission-connected to the angle grinding structure.

[0008] Preferably, the angle grinding structure includes a base threadedly connected to the outer surface of a threaded rod, a vertical slide groove 2 and a horizontal slide groove 1 are symmetrically provided on the left and right sides of the inner cavity of the processing chamber, and the slide groove 1 and the slide groove 2 on the same side are distributed in an L shape, and the inner surface of the base, the inner surface of the slide groove 1 and the inner surface of the slide groove 2 are jointly provided with a driving member connected to the driving motor 1, and the output end of the driving member is fixedly connected to a grinding wheel, and the slide groove 2 located on the left is connected to the outer surface of the insulating shell.

[0009] Preferably, the driving member includes a driving wheel 1 rotatably connected to the inner surface of the base, the left and right ends of the driving wheel 1 are fixedly connected with a transmission shaft 1 slidably connected to the inner surface of the second slide groove on the same side, the transmission shaft 1 located on the left is fixedly connected to the output end of the driving motor 1 through a coupling, the inner surfaces of the two slide grooves 1 are slidably connected with a limiting rod 1, the inner surface of the limiting rod 1 is rotatably connected with the driving wheel 2, the output end of the driving wheel 2 is fixedly connected to the grinding wheel, the outer surfaces of the driving wheel 1 and the driving wheel 2 are commonly wound with a cable, and the outer surface of the limiting rod 1 is rotatably connected to an L-shaped connecting rod rotatably connected to the outer surface of the driving shaft 1 on the same side on opposite sides.

[0010] Preferably, the positioning and adjustment structure comprises a lifting member fixedly connected to the top wall of the inner cavity of the installation chamber, the upper end of the lifting member is fixedly connected to a relay plate, the upper end of the relay plate is slidably connected to a supporting member, and the upper end of the supporting member is provided with a positioning member.

[0011] Preferably, the supporting member includes a supporting plate slidably connected to the upper end of the relay plate, a damping groove is symmetrically provided at the front end of the supporting plate, two limiting grooves are symmetrically provided at the upper end of the supporting plate, the inner surface of the two limiting grooves and the upper end of the supporting plate are both slidably connected to the positioning member, and a pull ring is symmetrically fixedly connected to the front end of the supporting plate.

[0012] Preferably, the positioning member includes limiting components symmetrically distributed frontward and rearward, two limiting components are fixedly connected with positioning plates on the left and right sides, two positioning plates on the same side have ends away from each other fixedly connected with connecting rods 1, two connecting rods 1 have ends away from the connected positioning plates fixedly connected with sliders 1 that are slidably connected to the inner surfaces of adjacent limiting grooves 2, and the inner surfaces of the four sliders 1 are commonly provided with adjustment components.

[0013] Preferably, the limiting component comprises an L-shaped base fixedly connected to one end of the two positioning plates close to each other through a fixing rod, a tension spring is fixedly connected to the upper end of the horizontal part of the base symmetrically, and the upper ends of the two tension springs are commonly fixedly connected to an L-shaped pressure plate, and a limiting groove three is symmetrically provided on the upper end of the vertical part of the base, the inner surfaces of the two limiting grooves three are both slidably connected to the limiting rod two, and the ends of the two limiting rods two away from the base are fixedly connected to the L-shaped pressure plate; The adjusting component includes a hand-cranked wheel 2 rotatably connected to the front end of the supporting plate, a bevel gear set 2 is fixedly connected to the rear end of the hand-cranked wheel 2, a transmission rod is fixedly connected to the inner surface of the output wheel of the bevel gear set 2, and the outer surface of the transmission rod is fixedly connected to bevel gear sets 3 on both the left and right sides, and the inner surfaces of the two output wheels of the two bevel gear sets 3 are fixedly connected to bidirectional threaded rods, and the outer surfaces of the two bidirectional threaded rods are respectively threadedly connected to the inner surfaces of the two sliders 1 on the same side.

[0014] Preferably, the lifting member includes a mounting plate fixedly connected to the top wall of the inner cavity of the mounting chamber, the front end of the mounting plate is fixedly connected to a driving motor 2, the output end of the driving motor 2 passes through the front end of the mounting plate, extends to the inner cavity of the mounting plate and is fixedly connected to a threaded rod 2, the outer surface of the threaded rod 2 is threadedly connected to a slider 2 that slides back and forth with the bottom wall of the inner cavity of the mounting plate, the upper end of the slider 2 is symmetrically connected to a connecting rod 2 that slides left and right with the bottom wall of the inner cavity of the mounting plate, the upper ends of the two connecting rods 2 are fixedly connected to a round rod on one side away from the slider 2, the outer surfaces of the two round rods are slidably connected to support rods, and the two support rods are linearly distributed and rotatably connected to a number of connecting rods 3 symmetrically distributed up and down on one side away from each other, the several connecting rods 3 located at the upper part are rotatably connected to the lower end of the relay plate, and the several connecting rods 3 located at the lower part are rotatably connected to the bottom wall of the inner cavity of the mounting plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention can adjust the working angle of the angle grinding structure through the angle adjustment piece, so that it can switch between cutting and grinding at different angles. The positioning adjustment structure can simultaneously be used to clamp and position the workpiece to be processed, avoiding the workpiece from being offset during the processing, affecting the cutting accuracy and causing workpiece loss.

[0016] The present invention utilizes a hand-cranked wheel 1 to drive a transmission shaft 2 to rotate, thereby driving a driving member to rise through the cooperation of a bevel gear set 1 and a threaded rod 1 and the interaction between the threaded rod 1 and a base, and limiting the driving member through slide grooves 1 and 2 allows the angle of the driving member to change during movement, thereby changing the angle of the grinding wheel disc and causing its edge to change from a vertical state to a horizontal state, thereby meeting the needs of different cutting angles or grinding and improving its scope of application.

[0017] The present invention drives the positioning plates and the limiting components on both sides to move inward to fix the workpiece on the upper side of the supporting plate through the action of the adjusting component, and because the positioning plates on both sides move synchronously under the action of the slider and the adjusting component, they can be positioned synchronously during the clamping process, which facilitates cutting or grinding operations during the processing, reduces workpiece loss, and improves processing efficiency.

[0018] The present invention drives the threaded rod 2 to rotate by driving the motor 2 and pushes the slide block 2 to move backward through the cooperation between the threaded rod 2 and the slide block 2, and at the same time, uses the action of the slide block 2 to push the rated round rods on both sides to slide along the left and right directions of the mounting plate, and pushes the upper and lower connecting rods 3 away from each other through the interaction between the support rod and the connecting rod 3, so that the workpiece on the supporting member is lifted through the relay plate, so that the grinding wheel can process it conveniently, and thus the processing depth can also be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic structural diagram of the angle grinding structure and the angle adjusting member of the present invention.

[0021] Figure 3 It is a schematic structural diagram of the driving structure of the present invention.

[0022] Figure 4 It is a structural schematic diagram of the angle adjustment member and the positioning adjustment structure of the present invention.

[0023] Figure 5 It is a schematic structural diagram of the driving member of the present invention.

[0024] Figure 6 For the present invention Figure 3 A schematic diagram of the enlarged local structure in the middle.

[0025] Figure 7 It is a schematic diagram of the structure and connection relationship of the supporting member and the positioning member of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the limiting component of the present invention.

[0027] Fig. 9 It is a schematic structural diagram of the regulating component of the present invention.

[0028] Fig.10 It is a structural schematic diagram of the lifting member of the present invention.

[0029] In the figure: 1. Insulating shell; 11. Processing chamber; 12. Installation chamber; 2. Shielding door; 3. Control terminal; 4. Angle grinding structure; 41. Base; 42. Driving member; 421. Driving wheel 1; 422. Transmission shaft 1; 423. Cable; 424. Driving wheel 2; 425. Limit rod 1; 426. L-shaped connecting rod; 43. Grinding wheel; 44. Slide 1; 45. Slide 2; 5. Driving structure; 51. Driving motor 1; 52. U-shaped bracket; 53. Limiting groove 1; 54. Shielding box; 6. Angle adjustment member; 61. Transmission shaft 2; 62. Bevel gear set 1; 63. Threaded rod 1; 64. Load bearing; 65. Hand wheel 1; 7. Positioning adjustment structure; 71. Support member; 711. Support plate; 712. Limiting groove 2; 713, pull ring; 714, damping groove; 72, positioning member; 721, limiting member; 7211, base; 7212, tension spring; 7213, L-shaped pressure plate; 7214, limiting groove three; 7215, limiting rod two; 722, positioning plate; 723, connecting rod one; 724, slider one; 725, adjustment member; 7251, hand wheel two; 7252, bevel gear set two; 7253, transmission rod; 7254, bevel gear set three; 7255, two-way threaded rod; 73, relay plate; 74, lifting member; 741, mounting plate; 742, drive motor two; 743, threaded rod two; 744, slider two; 745, connecting rod two; 746, round rod; 747, support rod; 748, connecting rod three. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0031] like Figure 1 and Figure 2 As shown, an electric angle grinder with multi-directional positioning and anti-electric shock function comprises an insulating shell 1, the inner cavity of the insulating shell 1 is divided into a processing chamber 11 and an installation chamber 12 by a partition, the front part of the inner surface of the processing chamber 11 is rotatably connected to a shielding door 2, the lower front end of the shielding door 2 is fixedly connected to a control terminal 3, the inner cavity of the installation chamber 12 is provided with an angle adjustment member 6 rotatably connected to the front end of the insulating shell 1, the outer surface of the angle adjustment member 6 is provided with an angle grinding structure 4 slidably connected to the inner cavity of the processing chamber 11, the rear part of the left end of the insulating shell 1 is provided with a driving structure 5 transmission-connected to the angle grinding structure 4, and the bottom wall of the inner cavity of the processing chamber 11 is provided with a positioning adjustment structure 7 fixedly connected to the top wall of the inner cavity of the shielding door 2.

[0032] It should be noted that the control terminal 3 is a conventional controller, which is mainly used to control the start and stop of the internal motor. At the same time, a leakage protector is also provided inside the controller, which is a conventional technical means in the prior art. In the present invention, the controller is only used to control the operation of the device, and the internal wiring method and control method are not elaborated in detail. Simultaneously, the insulating shell 1 and the shell of the driving structure 5 are both made of insulating materials. When a short circuit or leakage occurs inside, the shell is not energized. At the same time, the leakage protection in the control terminal 3 will also be activated to disconnect the power supply to avoid personal injury and reduce safety hazards.

[0033] Specifically, to provide power for the angle grinding process, see Figure 3 The driving structure 5 includes a limiting groove 53 symmetrically opened at the front and rear end of the left end of the insulating shell 1 and a shielding box 54 fixedly connected to the left end of the insulating shell 1. The inner surfaces of the two limiting grooves 53 are slidably connected to a U-shaped bracket 52 through a pulley. The end of the U-shaped bracket 52 away from the insulating shell 1 is fixedly connected to a driving motor 51. The output end of the driving motor 51 passes through the left end of the insulating shell 1 and extends to the inner cavity of the processing chamber 11 and is transmission-connected to the angle grinding structure 4.

[0034] The driving motor 51 can slide up and down in the limiting groove 53 through the U-shaped bracket 52, and will be simultaneously limited by the U-shaped bracket 52 and the limiting groove 53 to keep it fixed relative to the output end rotation axis.

[0035] During the operation of this embodiment, the working angle of the angle grinding structure 4 can be adjusted by the angle adjustment member 6, so that it can switch between cutting and grinding at different angles. The positioning adjustment structure 7 can be used to clamp and position the workpiece to be processed, thereby avoiding the workpiece from being offset during the processing, affecting the cutting accuracy and causing workpiece loss. Embodiment 2

[0036] On the basis of the first embodiment, the present embodiment utilizes the hand-cranked wheel 1 65 to drive the transmission shaft 2 61 to rotate, thereby driving the driving member 42 to rise through the cooperation between the bevel gear set 1 62 and the threaded rod 1 63 and the interaction between the threaded rod 1 63 and the base 41, and limiting the driving member 42 through the slide groove 1 44 and the slide groove 2 45 so that the angle of the driving member 42 changes during the movement, thereby changing the angle of the grinding wheel 43, so that its edge changes from a vertical state to a horizontal state, thereby meeting the needs of different cutting angles or grinding, and improving its scope of application.

[0037] Specifically, to adjust the angle of angular grinding and cutting, refer to Figure 2 and Figure 4The angle adjustment member 6 includes a hand-cranked wheel 65 rotatably connected to the front end of the insulating shell 1, and a transmission shaft 61 is fixedly connected to the rear end of the hand-cranked wheel 65. The end of the transmission shaft 61 away from the hand-cranked wheel 65 passes through the front end of the insulating shell 1 and extends to the inner cavity of the installation chamber 12 and is fixedly connected to a bevel gear set 62. The inner surface of the output wheel of the bevel gear set 62 is fixedly connected to a threaded rod 63 threadedly connected to the angle grinding structure 4, and the lower part of the outer surface of the threaded rod 63 is rotatably connected to a load-bearing bearing 64 fixedly connected to the bottom wall of the inner cavity of the installation chamber 12.

[0038] Rotating the hand-cranked wheel 1 65 drives the transmission shaft 2 61 to rotate, and the transmission shaft 2 61 drives the input gear of the bevel gear set 1 62 to rotate. The output gear and the output gear in the bevel gear set 1 62 mesh with each other to change the direction of the power, thereby driving the threaded rod 1 63 to rotate in the bevel gear set 1 62, thereby driving the angle grinding structure 4 to move through the cooperation between the threaded rod 1 63 and the angle grinding structure 4.

[0039] Further, to avoid the change in the direction of power transmission after the angle changes, refer to Figure 2 and Figure 3 The angle grinding structure 4 includes a base 41 threadedly connected to the outer surface of the threaded rod 63, and a vertical slide groove 45 and a horizontal slide groove 44 are symmetrically provided on the left and right sides of the inner cavity of the processing chamber 11. The slide groove 44 and the slide groove 45 on the same side are L-shaped. The inner surfaces of the base 41, the inner surfaces of the slide groove 44 and the inner surfaces of the slide groove 45 are jointly provided with a driving member 42 transmission-connected to the driving motor 51, and the output end of the driving member 42 is fixedly connected to the grinding wheel 43, and the slide groove 2 45 located on the left is connected to the outer surface of the insulating shell 1.

[0040] During the rotation of the threaded rod 63, the base 41 is driven to slide upward on the processing chamber 11 through the action of the thread. During the upward movement of the base 41, the driving member 42 is driven to slide in the slide groove 1 44 and the slide groove 2 45, thereby changing the action angle of the grinding wheel 43 through the cooperation between the driving member 42 and the slide groove 1 44 and the slide groove 2 45.

[0041] Further, for smooth power transmission, see Figure 5 and Figure 6The driving member 42 includes a driving wheel 421 rotatably connected to the inner surface of the base 41, and the left and right ends of the driving wheel 421 are fixedly connected with a transmission shaft 422 slidably connected to the inner surface of the same-side slide groove 45, and the transmission shaft 422 located on the left is fixedly connected to the output end of the driving motor 51 through a coupling, and the inner surfaces of the two slide grooves 44 are slidably connected with a limiting rod 425, and the inner surface of the limiting rod 425 is rotatably connected with the driving wheel 424, and the output end of the driving wheel 424 is fixedly connected to the grinding wheel 43, and the outer surfaces of the driving wheel 421 and the driving wheel 424 are commonly wound with a cable 423, and the outer surface of the limiting rod 425 is rotatably connected to an L-shaped connecting rod 426 rotatably connected to the outer surface of the same-side transmission shaft 422 on the left and right opposite sides.

[0042] The driving wheel 421 is rotatably connected to the inner surface of the base 41 and is driven by the driving motor 51. When the driving motor 51 rotates, it will synchronously drive the driving wheel 421 to rotate. At the same time, the transmission shaft 422 on both sides of the driving wheel 421 slides in the second slide groove 45, and its sliding trajectory is limited by the second slide groove 45 to slide up and down. Synchronously, through the action of the L-shaped connecting rod 426, when the transmission shaft 422 moves upward, the limiting rod 425 is synchronously pushed to move forward along the trajectory of the slide groove 44, thereby changing the relative angle between the driving wheel 421 and the transmission shaft 422, while not affecting their relative spacing; When the driving wheel 1 421 is rotated by the transmission shaft 1 422 , the cable 423 is synchronously driven to rotate through the L-shaped connecting rod 426 , thereby driving the grinding wheel 43 to rotate, thereby driving the grinding wheel 43 to cut or grind. Embodiment 3

[0043] Based on the second embodiment, this embodiment drives the positioning plates 722 and the limiting components 721 on both sides to move inward to fix the workpiece on the upper side of the supporting plate 711 through the action of the adjusting component 725, and since the positioning plates 722 on both sides move synchronously under the action of the slider 724 and the adjusting component 725, they can be positioned synchronously during the clamping process, which facilitates cutting or grinding operations during the processing, reduces workpiece loss, and improves processing efficiency.

[0044] Specifically, to achieve positioning and clamping of the workpiece, refer to Figure 4 The positioning and adjusting structure 7 includes a lifting member 74 fixedly connected to the top wall of the inner cavity of the installation chamber 12, the upper end of the lifting member 74 is fixedly connected to a relay plate 73, the upper end of the relay plate 73 is slidably connected to a supporting member 71, and the upper end of the supporting member 71 is provided with a positioning member 72.

[0045] The cooperation between the relay plate 73 and the lifting member 74 has high resistance, and is limited in the left-right direction by the T-block on the relay plate 73, and will not be offset forward and backward due to the force generated by processing.

[0046] Further, to achieve the support of the workpiece, see Figure 7 The supporting member 71 includes a supporting plate 711 that is slidably connected to the upper end of the relay plate 73, a damping groove 714 is symmetrically provided at the front end of the supporting plate 711, a limiting groove 2 symmetrically provided at the upper end of the supporting plate 711, the inner surface of the limiting groove 2 712 and the upper end of the supporting plate 711 are both slidably connected to the positioning member 72, and a pull ring 713 is symmetrically fixedly connected to the front end of the supporting plate 711.

[0047] The inside of the damping groove 714 is a damping surface, and there is a strong mutual resistance between the damping groove 714 and the surface matching the relay plate 73, so that the supporting plate 711 can be pulled out while avoiding its displacement due to processing vibration.

[0048] Further, to achieve the positioning and clamping of the workpiece, refer to Figure 7 The positioning member 72 includes a limiting component 721 symmetrically distributed frontward and rearward, and the two limiting components 721 are fixedly connected with a positioning plate 722 on the left and right sides, and the ends of the two positioning plates 722 on the same side away from each other are fixedly connected with a connecting rod 1 723, and the ends of the two connecting rods 1 723 away from the connected positioning plates 722 are fixedly connected with a slider 1 724 slidably connected to the inner surface of the adjacent limiting groove 2 712, and the inner surfaces of the four sliders 1 724 are commonly provided with an adjusting component 725.

[0049] The cooperation between the slider 724 and the adjusting component 725 drives the positioning plates 722 on both sides to move closer to or away from each other. When the positioning plates 722 are in close contact with both sides of the workpiece, the workpiece can be positioned and the workpiece can be clamped and fixed by the limiting component 721.

[0050] For further information, see Figure 8 , in order to avoid deviation and jumping during the cutting angle grinding process, the limiting component 721 includes an L-shaped base 7211, which is fixedly connected to the two positioning plates 722 at one end thereof by a fixing rod, and the upper end of the horizontal part of the base 7211 is symmetrically fixedly connected with a tension spring 7212, and the upper ends of the two tension springs 7212 are commonly fixedly connected with an L-shaped pressure plate 7213, and the upper end of the vertical part of the base 7211 is symmetrically provided with a limiting groove three 7214, and the inner surfaces of the two limiting grooves three 7214 are both slidably connected with the limiting rod two 7215, and the ends of the two limiting rods two 7215 away from the base 7211 are fixedly connected to the L-shaped pressure plate 7213; Pull the L-shaped pressing plate 7213 so that its horizontal part is located on the upper side of the workpiece. At this time, under the action of the tension spring 7212, the L-shaped pressing plate 7213 moves downward and is tightly attached to the upper surface of the workpiece, pressing and fixing the upper surface of the workpiece.

[0051] Further, in order to drive the limiting component 721 and the positioning plate 722 to position and fix the workpiece, refer to Fig. 9 The adjusting component 725 includes a hand-cranked wheel 2 7251 rotatably connected to the front end of the supporting plate 711, a bevel gear set 2 7252 is fixedly connected to the rear end of the hand-cranked wheel 7251, a transmission rod 7253 is fixedly connected to the inner surface of the output wheel of the bevel gear set 2 7252, and a bevel gear set 3 7254 is fixedly connected to the left and right sides of the outer surface of the transmission rod 7253, and a bidirectional threaded rod 7255 is fixedly connected to the inner surfaces of the output wheels of the two bevel gear sets 3 7254, and the outer surfaces of the two bidirectional threaded rods 7255 are respectively threadedly connected to the inner surfaces of the two sliders 1 724 on the same side.

[0052] Turn the hand crank wheel 2 7251 and drive the transmission rod 7253 to rotate through the action of the two bevel gears in the bevel gear set 2 7252. The transmission rod 7253 drives the bidirectional threaded rod 7255 to rotate through the action of the bevel gear set 3 7254 on both sides. The threads on both sides of the bidirectional threaded rod 7255 are in opposite directions. During the rotation process, the slider 1 724 will be driven to move closer to or away from each other in the limit groove 2 712, thereby driving the positioning plate 722 to clamp or loosen the workpiece. Embodiment 4

[0053] On the basis of the third embodiment, the second threaded rod 743 is driven to rotate by the second driving motor 742, and the second threaded rod 743 and the second slider 744 are cooperated to push the second slider 744 to move backward, and the second slider 744 is used to push the rated round rods 746 on both sides to slide along the left and right directions of the mounting plate 741, and the upper and lower connecting rods 748 are pushed away from each other through the interaction of the supporting rod 747 and the connecting rod 3 748, so that the workpiece on the supporting member 71 is lifted through the relay plate 73, so that the grinding wheel 43 can process it conveniently, and thus the processing depth can also be controlled.

[0054] Specifically, to adjust the height of the workpiece, refer to Fig.10The lifting member 74 includes a mounting plate 741 fixedly connected to the top wall of the inner cavity of the mounting chamber 12, a driving motor 2 742 fixedly connected to the front end of the mounting plate 741, an output end of the driving motor 2 742 passes through the front end of the mounting plate 741 and extends to the inner cavity of the mounting plate 741 and is fixedly connected to a threaded rod 2 743, a slider 2 744 is threadedly connected to the outer surface of the threaded rod 2 743 and slides forward and backward with the bottom wall of the inner cavity of the mounting plate 741, and the upper end of the slider 2 744 is symmetrically connected to a connecting rod 2 745 that slides left and right with the bottom wall of the inner cavity of the mounting plate 741, and the upper end of the slider 2 744 is symmetrically connected to the upper end of the two connecting rods 2 745. The side away from the slider 2 744 is fixedly connected to a round rod 746, and the outer surfaces of the two round rods 746 are slidably connected to support rods 747, and the sides away from each other of the two support rods 747 are linearly distributed and rotatably connected to a plurality of connecting rods 3 748 symmetrically distributed up and down, and the plurality of connecting rods 3 748 located at the upper part are all rotatably connected to the lower end of the relay plate 73, and the plurality of connecting rods 3 located at the lower part. 748 are rotatably connected to the bottom wall of the inner cavity of the mounting plate 741.

[0055] The control terminal 3 controls the start and stop and forward and reverse rotation of the second driving motor 742. The second driving motor 742 drives the second threaded rod 743 to rotate and drives the second slider 744 to slide forward and backward in the mounting plate 741 through the action of the thread. At this time, the second slider 744 can use the action on the second connecting rod 745 to push the round rod 746 to slide on the left and right track of the mounting plate 741. At this time, the round rods 746 on both sides drive the two supporting rods 747 to move away from each other. Since the mounting plate 741 is fixed on the mounting chamber 12, when the supporting rods 747 expand outward, they will push the connecting rods 3. 748 on both sides away from each other, thereby achieving the effect of pushing the relay plate 73 to move upward, thereby achieving the control of the rotation angle of the mounting plate 741 by the control terminal 3, and regulating the processing depth.

[0056] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An electric angle grinder with multi-directional positioning to prevent electric shock, comprising an insulating housing (1), characterized in that: The inner cavity of the insulating shell (1) is divided into a processing chamber (11) and an installation chamber (12) by a partition, the front portion of the inner surface of the processing chamber (11) is rotatably connected to a shielding door (2), the lower portion of the front end of the shielding door (2) is fixedly connected to a control terminal (3), the inner cavity of the installation chamber (12) is provided with an angle adjustment member (6) rotatably connected to the front end of the insulating shell (1), the outer surface of the angle adjustment member (6) is provided with an angle grinding structure (4) slidably connected to the inner cavity of the processing chamber (11), the rear portion of the left end of the insulating shell (1) is provided with a driving structure (5) transmission-connected to the angle grinding structure (4), and the bottom wall of the inner cavity of the processing chamber (11) is provided with a positioning adjustment structure (7) fixedly connected to the inner cavity top wall of the shielding door (2).

2. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 1, characterized in that: The angle adjustment member (6) comprises a hand-cranked wheel (65) rotatably connected to the front end of the insulating housing (1); a transmission shaft (61) is fixedly connected to the rear end of the hand-cranked wheel (65); an end of the transmission shaft (61) away from the hand-cranked wheel (65) passes through the front end of the insulating housing (1) and extends to the inner cavity of the installation chamber (12) and is fixedly connected to a bevel gear set (62); a threaded rod (63) threadedly connected to the angle grinding structure (4) is fixedly connected to the inner surface of the output wheel of the bevel gear set (62); and a load-bearing bearing (64) fixedly connected to the bottom wall of the inner cavity of the installation chamber (12) is rotatably connected to the lower part of the outer surface of the threaded rod (63).

3. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 2, characterized in that: The driving structure (5) comprises a limiting groove (53) symmetrically arranged at the front and rear ends of the left end of the insulating shell (1) and a shielding box (54) fixedly connected to the left end of the insulating shell (1); the inner surfaces of the two limiting grooves (53) are slidably connected to a U-shaped bracket (52) via a pulley; one end of the U-shaped bracket (52) away from the insulating shell (1) is fixedly connected to a driving motor (51); an output end of the driving motor (51) passes through the left end of the insulating shell (1) and extends to the inner cavity of the processing chamber (11) and is drivingly connected to the angle grinding structure (4).

4. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 3, characterized in that: The angle grinding structure (4) comprises a base (41) threadedly connected to the outer surface of the threaded rod (63); a vertical slide groove (45) and a horizontal slide groove (44) are symmetrically provided on the left and right sides of the inner cavity of the processing chamber (11); the slide groove (44) and the slide groove (45) on the same side are arranged in an L shape; the inner surfaces of the base (41), the slide groove (44) and the slide groove (45) are jointly provided with a driving member (42) drivingly connected to the driving motor (51); the output end of the driving member (42) is fixedly connected to the grinding wheel (43); the slide groove (45) on the left side is connected to the outer surface of the insulating shell (1).

5. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 4, characterized in that: The driving member (42) comprises a driving wheel (421) rotatably connected to the inner surface of the base (41); the left and right ends of the driving wheel (421) are fixedly connected to a transmission shaft (422) slidably connected to the inner surface of the second slide groove (45) on the same side; the transmission shaft (422) located on the left is fixedly connected to the output end of the driving motor (51) through a coupling; the inner surfaces of the two slide grooves (44) are slidably connected to a limit rod (425); the inner surface of the limit rod (425) is rotatably connected to the driving wheel (424); the output end of the driving wheel (424) is fixedly connected to the grinding wheel (43); the outer surfaces of the driving wheel (421) and the driving wheel (424) are commonly wound with a cable (423); the outer surface of the limit rod (425) is rotatably connected to an L-shaped connecting rod (426) rotatably connected to the outer surface of the driving shaft (422) on the same side on the left and right opposite sides.

6. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 1, characterized in that: The positioning and adjusting structure (7) comprises a lifting member (74) fixedly connected to the top wall of the inner cavity of the installation chamber (12); the upper end of the lifting member (74) is fixedly connected to a relay plate (73); the upper end of the relay plate (73) is slidably connected to a supporting member (71); and the upper end of the supporting member (71) is provided with a positioning member (72).

7. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 6, characterized in that: The supporting member (71) comprises a supporting plate (711) slidably connected to the upper end of the relay plate (73); a damping groove (714) is symmetrically provided at the front end of the supporting plate (711); a second limiting groove (712) is symmetrically provided at the upper end of the supporting plate (711); the inner surface of the second limiting groove (712) and the upper end of the supporting plate (711) are both slidably connected to the positioning member (72); and a pull ring (713) is symmetrically fixedly connected to the front end of the supporting plate (711).

8. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 7, characterized in that: The positioning member (72) comprises limiting components (721) symmetrically distributed frontward and rearward, the two limiting components (721) are fixedly connected to positioning plates (722) on both sides, the two positioning plates (722) on the same side are fixedly connected to connecting rods (723) at their ends away from each other, the two connecting rods (723) are fixedly connected to sliding blocks (724) slidably connected to the inner surfaces of adjacent limiting grooves (712) at their ends away from the connected positioning plates (722), and the inner surfaces of the four sliding blocks (724) are commonly provided with adjusting components (725).

9. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 8, characterized in that: The limiting component (721) comprises an L-shaped base (7211) whose end close to the two positioning plates (722) is fixedly connected by a fixing rod, the upper end of the horizontal part of the base (7211) is symmetrically fixedly connected with a tension spring (7212), the upper ends of the two tension springs (7212) are commonly fixedly connected with an L-shaped pressure plate (7213), and the upper end of the vertical part of the base (7211) is symmetrically provided with a limiting groove three (7214), the inner surfaces of the two limiting grooves three (7214) are both slidably connected with a limiting rod two (7215), and the ends of the two limiting rods two (7215) away from the base (7211) are both fixedly connected with the L-shaped pressure plate (72 13) fixedly connected; the adjustment component (725) comprises a hand-cranked wheel 2 (7251) rotatably connected to the front end of the support plate (711); the rear end of the hand-cranked wheel 2 (7251) is fixedly connected to a bevel gear set 2 (7252); the inner surface of the output wheel of the bevel gear set 2 (7252) is fixedly connected to a transmission rod (7253); the outer surface of the transmission rod (7253) is fixedly connected to a bevel gear set 3 (7254) on both sides; the inner surfaces of the output wheels of the two bevel gear sets 3 (7254) are fixedly connected to bidirectional threaded rods (7255); the outer surfaces of the two bidirectional threaded rods (7255) are respectively threadedly connected to the inner surfaces of the two sliders 1 (724) on the same side.

10. The electric angle grinder with multi-directional positioning and anti-electric shock function according to claim 6, characterized in that: The lifting member (74) comprises a mounting plate (741) fixedly connected to the top wall of the inner cavity of the mounting chamber (12); the front end of the mounting plate (741) is fixedly connected to a second driving motor (742); the output end of the second driving motor (742) passes through the front end of the mounting plate (741) and extends to the inner cavity of the mounting plate (741) and is fixedly connected to a second threaded rod (743); the outer surface of the second threaded rod (743) is threadedly connected to a second slider (744) that slides forward and backward with the bottom wall of the inner cavity of the mounting plate (741); the upper end of the second slider (744) is symmetrically connected to the left and right sides of the bottom wall of the inner cavity of the mounting plate (741) for rotation. A sliding connecting rod 2 (745), the upper ends of the two connecting rods 2 (745) are fixedly connected to a round rod (746) on one side away from the sliding block 2 (744), the outer surfaces of the two round rods (746) are slidably connected to a support rod (747), and the two support rods (747) are linearly and rotationally connected to a plurality of connecting rods 3 (748) symmetrically distributed up and down on one side away from each other, the plurality of connecting rods 3 (748) located at the upper part are rotationally connected to the lower end of the relay plate (73), and the plurality of connecting rods 3 (748) located at the lower part are rotationally connected to the bottom wall of the inner cavity of the mounting plate (741).

Images