Machining grinding device

Abstract

The utility model relates to the technical field of handheld polishing equipment, in particular to a machining polishing device which comprises a polishing machine, a plurality of supporting rods are fixed to one side of the polishing machine, a supporting plate is fixed to one end of each supporting rod, a lead screw is rotationally arranged on one side of the polishing machine, one end of the lead screw penetrates through the supporting plate to be fixedly provided with an adjusting knob, and the outer side of the lead screw is in threaded connection with a sliding plate. Connecting plates are fixed to the two ends of the sliding plate through screws, connecting rods are fixed to the two ends of the connecting plates through screws, arc-shaped blocking tables are fixed to the bottom ends of the connecting rods, baffles are fixed to the side faces of a pair of connecting rods, protective plates are slidably arranged between the baffles and the arc-shaped blocking tables, and compression springs are clamped between the protective plates and the baffles and located on the outer sides of the connecting rods. The handheld grinding machine solves the problems that an existing handheld grinding machine is not provided with a positioning structure, when a plane is ground, shaking or inclined cutting is often generated, the machining precision of a grinding face is reduced, ground sparks can be sputtered to other positions, and other objects are damaged.

Description

Technical Field

[0001] This utility model relates to the technical field of handheld polishing equipment, specifically to a mechanical processing and polishing device. Background Technology

[0002] Traditional sanding relies heavily on manual hand-held pneumatic tools, which is inefficient, difficult to guarantee quality, and prone to generating dust that is harmful to health. With industrial development, hand-held sanders have emerged, which are electrically driven and equipped with a variety of grinding heads to meet the sanding needs of different materials and shapes, improving processing efficiency and precision. They are widely used in the processing of materials such as metal, wood, and plastic.

[0003] Handheld grinders generally lack a positioning structure. When performing fine grinding on a flat surface, even if the grinder is positioned by hand, it will inevitably tilt or shake at a certain angle, affecting the processing quality of the ground surface. Furthermore, the sparks generated during grinding can scatter over a long distance, sometimes causing damage to other items. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing handheld grinders lack a positioning structure, which often causes shaking or skew during surface grinding, resulting in reduced grinding surface accuracy. Furthermore, the grinding sparks can splash to other locations, causing damage to other items.

[0005] To solve the above problems, the technical solution adopted by this utility model is a machining and grinding device, including a grinding machine. Several support rods are fixed on one side of the grinding machine, and a support plate is fixed to one end of each support rod. A lead screw is rotatably provided on one side of the grinding machine. An adjustment knob is fixed to one end of the lead screw through the support plate. A sliding plate is threaded to the outside of the lead screw. Connecting plates are fixed to both ends of the sliding plate by screws. Connecting rods are fixed to both ends of the connecting plates by screws. An arc-shaped stop is fixed to the bottom of the connecting rod. A baffle is fixed to the side of a pair of connecting rods. A protective plate is slidably provided between the baffle and the arc-shaped stop. A compression spring is sandwiched between the protective plate and the baffle on the outside of the connecting rod.

[0006] As a further embodiment of this utility model: one end of the grinding machine is equipped with a grinding wheel, and the bottom end of the arc-shaped stop extends beyond the bottom end of the grinding wheel by a certain distance. This distance is set according to the height of the protrusion to be ground on the plane. For example, when grinding the weld, the arc-shaped stop generally needs to extend beyond the grinding wheel by 1mm for pre-grinding, and then the arc-shaped stop is made flush with the grinding wheel for the remaining grinding.

[0007] As a further embodiment of this utility model: the bottom end of the protective plate is located below the bottom end of the arc-shaped baffle. When it comes into contact with the grinding surface, the grinding surface will push the protective plate upward, so that the protective plate can provide complete protection.

[0008] As a further embodiment of this invention, the width of the sliding plate is equal to the distance between a pair of support rods, which can limit the position of the sliding plate and prevent it from rotating.

[0009] As a further embodiment of this utility model: an auxiliary handle is fixed on one side of the grinder to facilitate left-hand gripping and maintain machine stability; the grinder is electrically connected to an external power source.

[0010] Compared with the prior art, the advantages of this utility model are as follows: This application adds a pair of arc-shaped baffle structures, whose positions can be adjusted by screw rods, so as to achieve planar support when the grinding machine is grinding, making the grinding more stable and precise. The addition of a protective plate can prevent sparks from splashing and causing damage to the surrounding environment and objects. Attached Figure Description

[0011] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0012] Figure 1 This utility model relates to an integral three-dimensional structure of a machining and grinding device. Figure 1 .

[0013] Figure 2 This utility model relates to an integral three-dimensional structure of a machining and grinding device. Figure 2 .

[0014] Figure 3 This is a partial structural cross-sectional view of a machining and grinding device according to the present invention.

[0015] Figure 4 This is an enlarged view of part A of the machining and grinding device of this utility model.

[0016] In the attached image:

[0017] 1. Grinding machine; 2. Support rod; 3. Support plate; 4. Lead screw; 5. Adjusting knob; 6. Sliding plate; 7. Connecting plate; 8. Connecting rod; 9. Arc-shaped stop; 10. Baffle; 11. Protective plate; 12. Compression spring; 13. Grinding wheel; 14. Auxiliary grip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0020] Combined with appendix Figure 1-3 It can be seen that the device includes a grinder 1, several support rods 2 are fixed on one side of the grinder 1, and a support plate 3 is fixed to one end of each support rod 2. A lead screw 4 is rotatably mounted on one side of the grinder 1. One end of the lead screw 4 passes through the support plate 3 and is fixed with an adjusting knob 5. A sliding plate 6 is threaded to the outside of the lead screw 4. Both ends of the sliding plate 6 are fixed with connecting plates 7 by screws. Both ends of the connecting plates 7 are fixed with connecting rods 8 by screws. An arc-shaped stop 9 is fixed to the bottom of the connecting rod 8. By rotating the adjusting knob 5, the lead screw 4 can be rotated, thereby adjusting the position of the sliding plate 6 for easy control. The position and height of the arc-shaped stop 9 are determined by the fact that one end of the grinding machine 1 is equipped with a grinding wheel 13, and the bottom of the arc-shaped stop 9 extends beyond the bottom of the grinding wheel 13 by a certain distance. This distance is set according to the height of the protrusion to be ground on the plane. For example, when grinding the weld, the arc-shaped stop 9 generally needs to extend beyond the grinding wheel 13 by 1mm for pre-grinding, and then the arc-shaped stop 9 is made flush with the grinding wheel 13 for the remaining grinding. The width of the sliding plate 6 is equal to the distance between a pair of support rods 2, which can restrict the position of the sliding plate 6 and prevent it from rotating.

[0021] Combined with appendix Figure 1 , 2 4. It can be seen that a pair of connecting rods 8 have baffles 10 fixed on their sides. A protective plate 11 is slidably provided between the baffles 10 and the arc-shaped baffle 9. A compression spring 12 is sandwiched between the protective plate 11 and the baffles 10 on the outside of the connecting rods 8, which can continuously push the protective plate 11 downward to ensure that there is no gap between it and the grinding surface. The bottom end of the protective plate 11 is located below the bottom end of the arc-shaped baffle 9. When it contacts the grinding surface, the grinding surface will push the protective plate 11 upward, so that the protective plate 11 can provide complete protection.

[0022] The working principle of this application is as follows: When grinding, the position of the arc-shaped stop 9 can be adjusted first according to the highest position to be ground. The sliding plate 6 is moved by rotating the lead screw 4 so that the bottom of the arc-shaped stop 9 extends 1~2mm beyond the grinding wheel, and then grinding can be performed.

[0023] During grinding, hold the grinder 1 with your right hand and the auxiliary handle 14 with your left hand, so that both of the arc-shaped stops 9 are in contact with the plane. Then, grinding can be performed through the grinding wheel 13. During grinding, the protective plate 11 will always be in contact with the grinding plane under the push of the compression spring 12 to prevent sparks from flying. After the pre-grinding is completed, the position of the arc-shaped stops 9 can be adjusted so that they are flush with the grinding wheel 13, and then the remaining grinding can be performed.

[0024] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A mechanical machining polishing device comprising a polishing machine (1), characterized in that: The grinding machine (1) has several support rods (2) fixed on one side. A support plate (3) is fixed at one end of the support rod (2). A lead screw (4) is rotatably provided on one side of the grinding machine (1). An adjustment knob (5) is fixed at one end of the lead screw (4) through the support plate (3). A sliding plate (6) is threaded to the outside of the lead screw (4). A connecting plate (7) is fixed to both ends of the sliding plate (6) by screws. A connecting rod (8) is fixed to both ends of the connecting plate (7) by screws. An arc-shaped baffle (9) is fixed to the bottom of the connecting rod (8). A baffle (10) is fixed to the side of a pair of connecting rods (8). A protective plate (11) is slidably provided between the baffle (10) and the arc-shaped baffle (9). A compression spring (12) is sandwiched between the protective plate (11) and the baffle (10) on the outside of the connecting rod (8).

2. A mechanical machining and polishing device according to claim 1, characterized in that: The grinding machine (1) has a grinding wheel (13) at one end, and the bottom of the arc-shaped baffle (9) extends a certain distance beyond the bottom of the grinding wheel (13).

3. A mechanical machining and polishing device according to claim 1, characterized in that: The bottom end of the protective plate (11) is located below the bottom end of the arc-shaped baffle (9).

4. The machining and grinding device according to claim 1, characterized in that: The width of the sliding plate (6) is equal to the distance between a pair of support rods (2).

5. A mechanical machining and polishing device according to claim 1, characterized in that: The grinder (1) has an auxiliary handle (14) fixed on one side, and the grinder (1) is electrically connected to an external power source.

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