Gravity automatic constant-force grinding mechanism

Abstract

The utility model belongs to the technical field of engineering polishing equipment, and particularly relates to a gravity automatic constant force polishing mechanism which comprises a door frame, a plurality of sets of guide grooves are symmetrically formed in the inner side of the door frame, polishing components are connected to the door frame and freely move up and down in the vertical direction of the door frame, and the number of the gravity automatic constant force components is two. The two sets of gravity automatic constant force components are symmetrically arranged at the two ends of the grinding component and drive the grinding component to act synchronously, the grinding component comprises a supporting frame slidably connected into the portal, the bottom of the supporting frame is connected with a grinding mechanism, and the grinding component is connected with the portal through a guide structure so that the grinding component can move freely in the vertical direction. Positive pressure can be provided for the polishing brush through the dead weight of the polishing component, then the positive pressure of the polishing brush can be accurately controlled through the gravity automatic constant force device, the longitudinal gradient change of the polishing surface can be quickly responded, the mechanism does not depend on a complex sensor and a control device, and the mechanism is reliable and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering grinding equipment, in particular to a gravity automatic constant force grinding mechanism. Background Art

[0002] An important parameter of engineering grinding equipment is the pressure of the grinding brush. If the brush pressure is too high, the equipment is easily damaged and may also cause surface damage to the grinding target. If the brush pressure is too low, the grinding effect is not ideal. In engineering, the brush pressure is usually controlled manually or adjusted by a force sensor. If it is controlled by manual operation, the brush pressure cannot be accurately grasped, and it is not easy to quickly respond to the height changes of the grinding surface; if the brush pressure is adjusted by a force sensor, the cost is high and the failure points are increased. Therefore, it is necessary to design a low-cost mechanism that can quantitatively adjust the brush pressure and quickly respond to changes in the grinding surface to improve the economy and practicality of engineering grinding equipment. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0004] Therefore, the purpose of the utility model is to provide a gravity-based automatic constant-force grinding mechanism, in which the grinding components are connected to the door frame through a guide structure so that they can move freely vertically. The weight of the grinding components can provide positive pressure for the grinding brush, and then the positive pressure of the grinding brush can be accurately controlled by the gravity-based automatic constant-force device, and can also quickly respond to changes in the longitudinal slope of the grinding surface. It does not rely on complex sensors and control devices, and the mechanism is reliable and low-cost.

[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0006] A gravity automatic constant force grinding mechanism, comprising:

[0007] As a door frame connecting the base frame, the inner side of the door frame is symmetrically provided with multiple sets of guide grooves;

[0008] The grinding parts are connected to the door frame and can move freely up and down along the vertical direction of the door frame;

[0009] There are two groups of gravity automatic constant force components, which are symmetrically placed at both ends of the grinding component and drive the grinding component to move synchronously.

[0010] As a preferred solution of the gravity automatic constant force grinding mechanism described in the utility model, wherein: the grinding component includes a support frame slidably connected to the door frame, and the bottom of the support frame is connected to the grinding mechanism.

[0011] As a preferred solution of the gravity automatic constant force grinding mechanism described in the utility model, in order to balance the resistance generated by grinding and concentrate the grinding dust in the middle, the grinding mechanism structure adopts two groups of grinding brushes that rotate towards the middle.

[0012] As a preferred solution of the gravity automatic constant force grinding mechanism described in the utility model, wherein: the four end corners of the support frame are connected with guide wheels, and the guide wheels are arranged in a one-to-one correspondence with the guide grooves and slide in cooperation with the guide grooves.

[0013] As a preferred solution of the gravity automatic constant force grinding mechanism described in the utility model, the gravity automatic constant force component includes multiple groups of guide pulleys symmetrically connected to the inner side of the door frame, one end of the wire rope is connected to the grinding component, and the other end of the wire rope passes around the guide pulley and is led out downward and connected to the counterweight.

[0014] As a preferred solution of the gravity automatic constant force grinding mechanism described in the utility model, wherein: the four end corners of the bottom of the door frame are connected with a walking mechanism, the walking mechanism has its own power to move, and can be braked at any time.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The grinding component is connected to the door frame through a guide structure so that it can move freely vertically. The weight of the grinding component can provide positive pressure for the grinding brush, and then the positive pressure of the grinding brush can be accurately controlled by the gravity automatic constant force device. It can also quickly respond to changes in the longitudinal slope of the grinding surface. It does not rely on complex sensors and control devices, and the mechanism is reliable and low-cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the grinding component of the utility model;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0021] In the figure: 100 door frame; 110 guide groove; 200 grinding component; 210 support frame; 220 grinding mechanism; 230 guide wheel; 300 gravity automatic constant force component; 310 guide pulley; 320 wire rope; 330 counterweight; 400 walking mechanism. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides a gravity automatic constant force grinding mechanism, please refer to Figure 1-3 , including a door frame 100, a grinding component 200, a gravity automatic constant force component 300 and a walking mechanism 400;

[0027] Please continue reading Figure 1 and Figure 3 , as a door frame 100 connected to the base frame, the inner side of the door frame 100 is symmetrically provided with multiple sets of guide grooves 110, and the guide grooves 110 guide the guide wheels 230;

[0028] Please continue reading Figure 1-3 , the grinding component 200 is connected to the door frame 100 and can move freely up and down along the vertical direction of the door frame 100;

[0029] The grinding component 200 includes a support frame 210 slidably connected to the door frame 100, a grinding mechanism 220 is threadedly connected to the bottom of the support frame 210, and guide wheels 230 are screwed to the four corners of the support frame 210 through positioning bolts. The guide wheels 230 are arranged in a one-to-one correspondence with the guide grooves 110 and slideably cooperate with the guide grooves 110;

[0030] Furthermore, in order to balance the resistance generated by grinding and to make the grinding dust concentrate in the middle, the grinding mechanism 220 structure adopts two sets of grinding brushes that rotate towards the middle.

[0031] Under the action of the guide wheel 230 and the guide groove 110, the support frame 210 freely moves up and down along the vertical direction of the door frame 100, and the grinding mechanism 220 moves synchronously with the support frame 210;

[0032] Please continue reading Figure 1 and Figure 3 There are two groups of gravity automatic constant force components 300, which are symmetrically placed at both ends of the grinding component 200 and drive the grinding component 200 to move synchronously;

[0033] The gravity automatic constant force component 300 includes a plurality of guide pulleys 310 symmetrically connected to the inner side of the gantry 100. One end of the steel wire rope 320 is connected to the grinding component 200. The other end of the steel wire rope 320 is led downward after passing around the guide pulley 310 and connected to the counterweight 330. The downward gravity of the counterweight 330 is converted into an upward pulling force on the grinding component 200 through the steel wire rope 320 and the guide pulley 310. The pressure of the grinding component 200 on the grinding target surface is constant and equal to the gravity of the grinding component 200 minus the gravity of the counterweight 330.

[0034] Please continue reading Figure 1 The four end corners at the bottom of the gantry 100 are all connected with a walking mechanism 400, and the walking mechanism 400 has its own power to move and can be braked at any time.

[0035] Working principle: When the utility model is in use, the grinding component 200 is installed in the middle of the leg of the door frame 100 and is connected and constrained by the guide wheel 230. The guide wheel 230 only allows the grinding component 200 to move up and down along the leg of the door frame 100. A steel wire rope 320 is connected to each end of the grinding component 200. After the steel wire rope 320 passes through two guide pulleys 310, it is led downward from the outside of the leg of the door frame 100 and connected to the counterweight weight 330. The positive pressure of the grinding mechanism 220 is the weight of the grinding component 200 minus the weight of the counterweight weight 330. By controlling the weight of the counterweight weight 330, the pressure of the grinding mechanism 220 can be accurately adjusted to achieve a better grinding effect. Then, through the movement of the walking mechanism 400, continuous long-distance grinding work can be achieved.

[0036] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A gravity automatic constant force grinding mechanism, characterized in that: include: A door frame (100) connected to the base frame, wherein a plurality of guide grooves (110) are symmetrically arranged on the inner side of the door frame (100); The grinding component (200) is connected to the door frame (100) and is freely movable up and down along the vertical direction of the door frame (100); The gravity automatic constant force components (300) are provided with two groups, and the two groups of gravity automatic constant force components (300) are symmetrically arranged at two ends of the grinding component (200), and drive the grinding component (200) to move synchronously.

2. The gravity automatic constant force grinding mechanism according to claim 1, characterized in that: The grinding component (200) comprises a support frame (210) slidably connected to the door frame (100), and a grinding mechanism (220) is connected to the bottom of the support frame (210).

3. The gravity automatic constant force grinding mechanism according to claim 2, characterized in that: In order to balance the resistance generated by grinding and to make the grinding dust concentrate in the middle, the grinding mechanism (220) structure adopts two groups of grinding brushes that are arranged to rotate towards the middle.

4. The gravity automatic constant force grinding mechanism according to claim 3, characterized in that: Guide wheels (230) are connected to the four end corners of the support frame (210), and the guide wheels (230) are arranged in a one-to-one correspondence with the guide grooves (110) and are slidably matched with the guide grooves (110).

5. The gravity automatic constant force grinding mechanism according to claim 4, characterized in that: The gravity automatic constant force component (300) comprises a plurality of guide pulleys (310) symmetrically connected to the inner side of the door frame (100); one end of a steel wire rope (320) is connected to the polishing component (200); and the other end of the steel wire rope (320) passes around the guide pulley (310) and is led downward and connected to a counterweight (330).

6. The gravity automatic constant force grinding mechanism according to claim 5, characterized in that: The four end corners of the bottom of the door frame (100) are all connected to a walking mechanism (400), and the walking mechanism (400) is self-powered for movement and can be braked at any time.

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