Columnar forge piece inner hole grinding device

Abstract

The utility model discloses a cylindrical forge piece inner hole polishing device which comprises an outer layer fixing ring and an inner layer polishing mechanism. The outer layer fixing ring comprises an outer ring and a fixing plate, the fixing plate is connected with the outer ring through a sliding rod, one end of the sliding rod penetrates through the outer ring, and fixing nuts are arranged on the sliding rod on the two sides of the outer ring; a spring is arranged between the fixing plate and the outer ring; the outer ring is connected with the fixed disc through a connecting bracket; the inner-layer grinding mechanism comprises a hydraulic rod, a motor and a fixing disc, the bottom of the hydraulic rod is perpendicularly fixed to the center of the fixing disc, the other end of the hydraulic rod is connected with the motor, the output end of the motor is connected with a grinding disc, the grinding disc extends outwards from the inner side to be provided with supporting rods, and one end of the supporting rod located on the outer side of the grinding disc is connected with a grinding wheel. A clamping structure and a grinding structure are combined, the overall size is smaller, meanwhile, the grinding outer diameter of the grinding wheel can be adjusted, inner holes of columnar forgings of different sizes can be ground, and use is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the field of forging grinding, in particular to a columnar forging inner hole grinding device. Background Art

[0002] The working principle of forging grinding equipment is to continuously grind the surface of the forging through a rotating grinding wheel to make it smooth and flat.

[0003] Traditional grinding mechanisms generally need to work with clamps, and the clamps use mechanisms such as robots, which occupy a large area; the grinding mechanism is a handheld or automated device, and it is difficult to use a handheld device to grind a cylindrical inner hole. It cannot accurately adapt to the diameter surface of inner holes of different diameters, and the grinding angle needs to be constantly adjusted to complete the grinding of the entire inner diameter surface. The overall efficiency is not high. Utility Model Content

[0004] The utility model aims to provide a columnar forging inner hole grinding device which has small volume, high efficiency and can adapt to different diameters.

[0005] The purpose of the utility model is achieved as follows: A cylindrical forging inner hole grinding device includes an outer fixed ring and an inner grinding mechanism;

[0006] The outer fixed ring includes an outer ring and a fixed plate, the fixed plate and the outer ring are connected by a sliding rod, one end of the sliding rod passes through the outer ring and fixed nuts are arranged on the sliding rods located on both sides of the outer ring; a spring is arranged between the fixed plate and the outer ring; the outer ring is connected to the fixed plate through a connecting bracket;

[0007] The inner layer grinding mechanism includes a hydraulic rod, a motor, and a fixed plate. The bottom of the hydraulic rod is vertically fixed to the center of the fixed plate. The other end of the hydraulic rod is connected to the motor. The output end of the motor is connected to the grinding plate. The grinding plate is provided with a support rod extending from the inside to the outside, and one end of the support rod located on the outside of the grinding plate is connected to a grinding wheel.

[0008] Preferably, the inner and outer sides of the connection between the outer ring and the sliding rod are designed to be flat, and the sliding rod is provided with an external thread.

[0009] Preferably, a rubber pad is provided on the side of the fixing plate facing the forging.

[0010] Preferably, two groups of springs are provided between each group of the fixing plates and the outer ring, and the springs are symmetrically arranged along the central axis of the sliding rod.

[0011] Preferably, there are two support rods, which are symmetrically arranged in the diameter direction of the grinding disc; one end of the support rod located in the grinding disc is connected to the multi-link mechanism.

[0012] Preferably, the multi-link mechanism consists of two groups of short rods, a connecting rod and a rotating rod. One end of the two groups of short rods are hinged and then hinged to one end of the connecting rod to form a Y-shaped structure; the other end of the short rod is hinged to one end of the support rod, the connecting rod and the rotating rod are connected through a bearing, and the rotating rod is provided with an external thread and passes through the grinding disc to form a threaded connection.

[0013] Preferably, a slide groove is provided on the support rod body located in the grinding disc, and a fixing column is arranged in the grinding disc, and the fixing column is placed in the slide groove to form a sliding fit.

[0014] Compared with the prior art, the utility model is beneficial in that:

[0015] 1. The traditional forging clamping mechanism includes a hydraulic rod and a fixed clamping rod, which is relatively large in size. The positioning mechanism and the grinding mechanism are combined into one, avoiding the use of a forging clamping device, which is smaller in size.

[0016] 2. The multi-link structure and outer ring fixing mechanism are adopted. Through the initial positioning of the multi-link structure and the final positioning of the outer ring fixing mechanism, the grinding device can be fixed more efficiently;

[0017] 3. The outer diameter of the grinding wheel can be adjusted through the multi-link mechanism, so it can adapt to the inner hole grinding of columnar forgings of different sizes. There is no need to customize multiple sets of grinding wheels of different sizes like traditional grinding mechanisms, which greatly reduces costs and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the outer ring and the grinding disc of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the multi-link mechanism of the utility model.

[0021] Among them, 1 outer ring, 2 fixed plate, 3 sliding rod, 4 fixed nut, 5 spring, 6 connecting bracket, 7 fixed disk, 8 hydraulic rod, 9 motor, 10 grinding disk, 1001 fixed column, 11 support rod, 1101 slide groove, 12 grinding wheel, 13 multi-link mechanism, 1301 short rod, 1302 connecting rod, 1303 rotating rod, 14 rubber pad. DETAILED DESCRIPTION

[0022] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0023] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1-3 As shown, a cylindrical forging inner hole grinding device includes an outer fixing ring and an inner grinding mechanism;

[0026] The outer fixed ring includes an outer ring 1 and a fixed plate 2. The fixed plate 2 and the outer ring 1 are connected by a sliding rod 3. One end of the sliding rod 3 passes through the outer ring 1 and a fixing nut 4 is provided on the sliding rod 3 located on both sides of the outer ring 1. A spring 5 is provided between the fixed plate 2 and the outer ring 1. The outer ring 1 is connected to the fixed plate 7 through a connecting bracket 6. When the outer ring is fixed, the fixing of the entire device is completed.

[0027] The inner layer grinding mechanism includes a hydraulic rod 8, a motor 9, and a grinding disc 10. The bottom of the hydraulic rod 8 is vertically fixed on the center of the fixed disc 7. The other end of the hydraulic rod 8 is connected to the motor 9. The output end of the motor 9 is connected to the grinding disc 10. The grinding disc 10 is extended from the inside to the outside and is provided with a support rod 11. One end of the support rod 11 located on the outside of the grinding disc 10 is connected to a grinding wheel 12. The grinding wheel 12 is used for grinding the inner aperture surface; the grinding wheel is selected to have a narrow width and a circular arc top surface structure to adapt to inner holes of different diameters.

[0028] like Figure 2As shown, the inner and outer sides of the connection between the outer ring 1 and the sliding rod 3 are set to be flat, and the sliding rod 3 is provided with an external thread to ensure that the fixing nut can fit the outer ring and ensure that the sliding rod is more stable after the nut is stable.

[0029] like Figure 2 As shown, a rubber pad 14 is provided on the side of the fixing plate 2 facing the forging, and the fixing plate is configured as an arc-shaped surface. The rubber pad can increase the friction force to prevent the entire device from loosening.

[0030] like Figure 2 As shown, two groups of springs 5 ​​are provided between each group of fixing plates 2 and the outer ring 1. The springs 5 ​​are symmetrically arranged along the central axis of the sliding rod 3. By rotating the outer fixing nut, the springs push the fixing plate toward one side of the forging until the fixing plate contacts the outer surface of the forging, and then the fixing nut is rotated to fix the outer ring.

[0031] like Figure 3 As shown, there are two support rods 11 and they are symmetrically arranged in the diameter direction of the grinding disc 10; one end of the support rod 11 located in the grinding disc 10 is connected to the multi-link mechanism 13 to ensure that the grinding wheel is symmetrically arranged, and at the same time ensure that when the grinding wheel conflicts with the inner aperture surface, the center of the fixed disc and the grinding disc is located on the central axis of the inner hole of the forging, providing initial positioning for the outer ring fixation.

[0032] like Figure 3 As shown, the multi-link mechanism 13 is composed of two groups of short rods 1301, a connecting rod 1302 and a rotating rod 1303. One end of the two groups of short rods 1301 is hinged and then hinged to one end of the connecting rod 1302 to form a Y-shaped structure; the other end of the short rod 1301 is hinged to one end of the support rod 11, the connecting rod 1302 and the rotating rod 1303 are connected by a bearing, and the rotating rod 1303 is provided with an external thread and passes through the grinding disc to form a threaded connection; when in use, the rotating rod rotates and moves inward, thereby driving the short rod and the support rod to extend to both sides, so that the grinding wheel can adapt to inner holes of different diameters.

[0033] like Figure 3 As shown, a slide groove 1101 is provided on the main body of the support rod 11 located in the grinding disc 10, and a fixed column 1001 is arranged in the grinding disc 10. The fixed column 1001 is placed in the slide groove 1101 to form a sliding fit. The fixed column cooperates with the support rod to further limit the support rod, avoid large displacement of the support rod, and improve the stability of the support rod in telescoping back and forth.

[0034] The working principle of the utility model is described as follows: when in use, first extend the grinding disc into the inner hole of the forging, then rotate the rotating rod, the rotating rod drives the support rod and the grinding wheel to extend outward, after the grinding wheel contacts the inner hole, the whole device can be initially fixed on the forging; then loosen the outer fixing nut until the fixing plate contacts the outer surface of the forging, then further lock and fix the sliding rod through the inner and outer fixing nuts, thus completing the overall fixation of the outer ring, and also completing the fixation of the whole device; finally, start the motor and the hydraulic rod to drive the grinding wheel to move and grind in the inner hole; the whole device combines the clamping part and the grinding part into one, has a small volume, and is convenient and quick to use.

[0035] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A cylindrical forging inner hole grinding device, characterized in that: It includes an outer fixing ring and an inner grinding mechanism; The outer fixed ring includes an outer ring and a fixed plate, the fixed plate and the outer ring are connected by a sliding rod, one end of the sliding rod passes through the outer ring and fixed nuts are arranged on the sliding rods located on both sides of the outer ring; a spring is arranged between the fixed plate and the outer ring; the outer ring is connected to the fixed plate through a connecting bracket; The inner layer grinding mechanism includes a hydraulic rod, a motor, and a fixed plate. The bottom of the hydraulic rod is vertically fixed to the center of the fixed plate. The other end of the hydraulic rod is connected to the motor. The output end of the motor is connected to the grinding plate. The grinding plate is provided with a support rod extending from the inside to the outside, and one end of the support rod located on the outside of the grinding plate is connected to a grinding wheel.

2. A cylindrical forging inner hole grinding device according to claim 1, characterized in that: The inner and outer sides of the connection between the outer ring and the sliding rod are designed to be flat, and the sliding rod is provided with an external thread.

3. A cylindrical forging inner hole grinding device according to claim 1, characterized in that: A rubber pad is provided on the side of the fixing plate facing the forging.

4. A cylindrical forging inner hole grinding device according to claim 1, characterized in that: Two groups of springs are arranged between each group of the fixing plates and the outer ring, and the springs are symmetrically arranged along the central axis of the sliding rod.

5. The cylindrical forging inner hole grinding device according to claim 1, characterized in that: There are two support rods, which are symmetrically arranged in the diameter direction of the grinding disc; one end of the support rod located in the grinding disc is connected to the multi-link mechanism.

6. A cylindrical forging inner hole grinding device according to claim 5, characterized in that: The multi-link mechanism consists of two groups of short rods, a connecting rod and a rotating rod. One end of the two groups of short rods is hinged and then hinged to one end of the connecting rod to form a Y-shaped structure; the other end of the short rod is hinged to one end of the support rod, the connecting rod and the rotating rod are connected through a bearing, and the rotating rod is provided with an external thread and passes through the grinding disc to form a threaded connection.

7. The cylindrical forging inner hole grinding device according to claim 1, characterized in that: A slide groove is provided on the support rod body located in the grinding disc, and a fixing column is arranged in the grinding disc, and the fixing column is placed in the slide groove to form a sliding fit.

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