High-precision blade grinding machine component

Abstract

The high-precision blade grinding machine component comprises a grinding machine body, a transmission structure is arranged on the rear side of the upper end of the grinding machine body and comprises a transmission plate, a transmission shaft is arranged on the left side of the front end of the transmission plate, and a limiting piece is arranged on the rear side of the outer surface of the transmission shaft. A grinding wheel is arranged in the middle of the outer surface of the transmission shaft, the front end of the transmission shaft is connected with a buffering fixing cap, a pressing plate is arranged between the buffering fixing cap and the grinding wheel, the grinding wheel comprises a core body, and rectangular grooves are formed in the front end of the core body in a bilateral symmetry mode. Through the arrangement of the protruding block and the rectangular groove, the pressing plate and the core body of the grinding wheel are fixed, the pressing plate and the grinding wheel cannot be separated immediately even if threads of a nut are removed, and time is provided for personnel to perceive problems; and by arranging the annular buffer pad and the second elastic piece, the extrusion force between the buffer fixing cap and the grinding wheel is buffered, and potential safety hazards or quality risks caused by the fact that the extrusion force on the grinding wheel is too large or too small are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blade grinding machines, in particular to a high-precision blade grinding machine component. Background Art

[0002] When the blade grinding machine is working, the grinding wheel is constantly grinding the tool and is in a continuous wear state. When the grinding wheel wears to a certain extent, in order to ensure the grinding quality of the blade and the safety during the grinding process, it is necessary to replace the grinding wheel in time. When the existing grinding wheel is replaced, a pressing plate is used to limit the grinding wheel, and a nut is used to fix the pressing plate. In the actual use process, it is not easy to control the rotation tightness of the nut. If it is too tight, it is easy to cause cracks in the grinding wheel due to force extrusion. If it is too loose, it is easy to cause the grinding wheel to shake during the blade grinding, and the high-speed rotation of the grinding wheel may cause the nut to come off the thread, making the pressing plate separate from the grinding wheel, and the grinding wheel may shake. In order to improve safety and facilitate the fixing of the nut, we have designed a high-precision blade grinding machine component.

[0003] A Chinese utility model patent with the patent number CN202223605029.1 discloses a blade grinding machine, which solves the technical problems such as slow grinding speed of the existing blade grinding machine. In this blade grinding machine, a first rotary driving member capable of vertically reciprocating is provided on the driving frame, the grinding disc is arranged below the first rotary driving member, and the grinding disc is fixedly connected to the driving shaft of the first rotary driving member. A workbench is rotatably arranged on the base, and a second rotary driving member for driving the workbench to rotate is arranged below the base. A plurality of positioning blocks are arranged on the workbench, and the positioning blocks are arranged in a circular array centered on the central axis of the workbench. The positioning blocks are provided with a first mounting surface for fixing the fixed blade and a second mounting surface for fixing the moving blade. The grinding disc of this utility model can grind all the fixed blades and moving blades on the workbench at one time, and the grinding speed of the moving blade and the fixed blade is faster. However, this utility model has the following problems: firstly, it does not have an automatic control for improving the extrusion force on the grinding wheel, and it is not easy to control the rotation tightness of the nut. If it is too tight, it is easy to cause cracks in the grinding wheel due to force extrusion. If it is too loose, it is easy to cause the grinding wheel to shake during the blade grinding. Secondly, the pressure between the pressing plate and the grinding wheel decreases and it is easy to separate, and the high-speed rotation of the grinding wheel may cause the nut to come off the thread, resulting in the separation of the pressing plate and the grinding wheel and causing the grinding wheel to shake, with low safety. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the technical problems of the existing blade grinding machine that when the nut comes off the thread during the grinding process, the pressing plate is separated from the grinding wheel, causing the grinding wheel to shake, affecting the grinding effect, and it is not easy to control the extrusion force generated on the grinding wheel during the tightening process of the buffer fixing cap. Only relying on personal experience, if it is too tight, it is easy to cause cracks in the grinding wheel due to force extrusion. If it is too loose, it is easy to cause the grinding wheel to shake during the blade grinding, by setting convex blocks, rectangular grooves and buffer fixing caps.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A high-precision blade grinding machine component, including a grinding machine body, a transmission structure is provided at the rear side of the upper end of the grinding machine body, the transmission structure includes a transmission plate, a transmission shaft is provided at the left side of the front end of the transmission plate, a limiting member is provided at the rear side position of the outer surface of the transmission shaft, a grinding wheel is provided at the middle position of the outer surface of the transmission shaft, and the front end of the transmission shaft is connected to a buffer fixing cap, a pressing plate is provided between the buffer fixing cap and the grinding wheel, the grinding wheel includes a core body, rectangular grooves are symmetrically provided at the left and right sides of the front end of the core body, and trapezoidal grooves are symmetrically provided at the left and right sides of the inner part of the rectangular grooves.

[0007] As a preference, the inner surface of the pressing plate is connected to the transmission shaft, and convex blocks are symmetrically provided at the left and right sides of the rear end of the pressing plate, receiving grooves are symmetrically provided at the left and right ends of the convex blocks, and elastic members are provided in the receiving grooves.

[0008] As a preference, one end of the elastic member away from the receiving groove is provided with a movable block, the movable block is adaptively connected to the trapezoidal groove, and the convex block is adaptively connected to the rectangular groove.

[0009] As a preference, a threaded port is provided at the front end of the buffer fixing cap, the rear end of the threaded port is connected to an inner cavity, and an annular buffer pad is provided on the front surface of the inner cavity.

[0010] As a preference, a cavity is provided inside the annular buffer pad, elastic balls are evenly distributed in the cavity, an annular plate is provided at the rear end of the annular buffer pad, and hollow cylinders are evenly distributed at the rear end of the annular plate.

[0011] As a preference, a sleeve is sleeved on the outer surface of the hollow cylinder, a second elastic member is provided in the sleeve, the lower end of the second elastic member is located on the inner surface of the hollow cylinder, a movable plate is provided at the rear end of the sleeve, and the rear end of the movable plate abuts against the pressing plate.

[0012] The beneficial effects of the utility model:

[0013] (1) In the utility model, by setting the convex block and the rectangular groove, during the process that the convex block gradually inserts into the rectangular groove, the elastic member is compressed to drive the movable block to contract in the receiving groove, but when it moves to the trapezoidal groove, the space becomes larger, so that the pressure on the elastic member is reduced and it extends, driving the movable block to extend into the trapezoidal groove, thereby realizing the fixation of the pressing plate and the core body of the grinding wheel. Even if the buffer fixing cap backs off the thread during long-term work, the pressing plate and the grinding wheel will not immediately come off, providing time for personnel to detect problems, thereby increasing safety.

[0014] (2) In the present utility model, by providing an annular buffer pad and a second elastic member, a double buffering is formed. When the buffer fixing cap is threadedly connected to the transmission shaft, the buffer fixing cap gradually approaches the pressing plate, causing the movable plate to transmit the pressure to the second elastic member. The second elastic member contracts and the sleeve gradually coincides with the hollow cylinder. Part of the pressure continues to be transmitted downward to the annular buffer pad, and the annular buffer pad deforms to form a second buffer, thereby buffering the extrusion force generated on the grinding wheel during the tightening process of the buffer fixing cap, achieving automatic control of the extrusion force on the grinding wheel, and avoiding potential safety hazards or quality risks caused by excessive or insufficient extrusion force on the grinding wheel, thus ensuring the safety and quality of blade grinding.

[0015] In summary, the utility model has the advantages of simple structure and high safety, and is particularly suitable for the technical field of blade grinding machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic structural diagram of a component of a high-precision blade grinding machine.

[0018] Figure 2 It is a schematic front axle-side structural diagram of the core part.

[0019] Figure 3 It is a schematic rear axle-side structural diagram of the transmission shaft part and the pressing plate part.

[0020] Figure 4 It is a schematic sectional structural diagram of the buffer fixing cap part. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings.

[0022] Embodiment 1

[0023] As Figures 1 to 4As shown in the figure, the utility model provides a component of a high-precision blade grinding machine, including a grinding machine body 1. A transmission structure 2 is provided at the rear side of the upper end of the grinding machine body 1, which includes components such as a motor, a chain, and a gear, providing power support for the rotation of a transmission shaft 22. The transmission structure 2 includes a transmission plate 21. The interior of the transmission plate 21 is hollow, and a chain and a gear are arranged inside, playing a role in protecting the internal components and increasing the aesthetic degree. On the left side of the front end of the transmission plate 21, there is a transmission shaft 22, which rotates at a high speed driven by the transmission structure 2, thereby driving a grinding wheel 3 to perform grinding work. A limiting member 23 is arranged at the rear side position of the outer surface of the transmission shaft 22, limiting the position where the grinding wheel 3 is installed backward. The limiting member 23 cooperates with a pressing plate 5 and a buffer fixing cap 4 to clamp the grinding wheel 3. And a grinding wheel 3 is arranged at the middle position of the outer surface of the transmission shaft 22. The front end of the transmission shaft 22 is connected to the buffer fixing cap 4. Compared with a conventional fixing nut, the extrusion force of the buffer fixing cap 4 on the grinding wheel 3 has buffering properties, avoiding safety hazards or quality risks caused by excessive or too small extrusion force on the grinding wheel 3, thereby ensuring the safety and quality of blade grinding. A pressing plate 5 is arranged between the buffer fixing cap 4 and the grinding wheel 3. The grinding wheel 3 includes a core body 31. Rectangular grooves 311 are symmetrically arranged on the left and right sides of the front end of the core body 31. Trapezoidal grooves 312 are symmetrically arranged in the grooves of the rectangular grooves 311. The inclined surfaces of the trapezoidal grooves 312 face forward, providing a good transition between the rectangular grooves 311 and the trapezoidal grooves 312, enabling the movable block 54 to smoothly escape from the rectangular grooves 311 when the grinding wheel 3 is replaced.

[0024] Further, as Figure 3 shown, the inner surface of the pressing plate 5 is connected to the transmission shaft 22. And convex blocks 51 are symmetrically arranged at the rear end of the pressing plate 5. Receiving grooves 52 are symmetrically arranged at the left and right ends of the convex blocks 51, providing a displacement space for an elastic member 53 and a movable block 54. An elastic member 53 is arranged in the grooves of the receiving grooves 52, which can be a spring assembly, and its self-extending and contracting characteristics can drive the movable block 54 to displace.

[0025] Further, one end of the elastic member 53 away from the receiving groove 52 is provided with a movable block 54. The movable block 54 is adaptively connected to the trapezoidal groove 312, and the convex block 51 is adaptively connected to the rectangular groove 311. During the process of the convex block 51 gradually inserting into the rectangular groove 311, the elastic member 53 is compressed to drive the movable block 54 to contract in the receiving groove 52. However, when the convex block 51 moves to the trapezoidal groove 312, the space becomes larger, causing the elastic member 53 to be less compressed and thus extend, driving the movable block 54 to extend into the trapezoidal groove 312, thereby realizing the fixation of the pressing plate 5 and the core body 31 of the grinding wheel 3. Even if the buffer fixing cap 4 backs off the thread during long-term operation, the pressing plate 5 and the grinding wheel 3 will not immediately come apart, providing time for personnel to detect problems, thereby increasing safety.

[0026] Further, as Figure 4As shown, a threaded port 41 is provided at the front end of the buffer fixing cap 4 for threaded connection with the front end of the transmission shaft 22. The rear end of the threaded port 41 is connected to an inner cavity 42. An annular buffer pad 43 is provided on the front surface of the inner cavity 42. Its outer part is made of rubber and has the ability to deform under pressure.

[0027] Furthermore, a cavity 44 is provided inside the annular buffer pad 43. Elastic balls 45 are evenly distributed in the cavity 44 of the cavity 44. When pressure is applied to the annular buffer pad 43, its outer shell and the elastic balls 45 deform simultaneously, thereby increasing the telescopic deformation amount. An annular plate 46 is provided at the rear end of the annular buffer pad 43. Hollow cylinders 47 are evenly distributed at the rear end of the annular plate 46, providing a displacement space for the second elastic member 49 and defining the displacement direction of the sleeve 48.

[0028] Furthermore, as Figure 4 shown, a sleeve 48 is sleeved on the outer surface of the hollow cylinder 47. A second elastic member 49, which can be a spring assembly, is provided inside the barrel of the sleeve 48. The lower end of the second elastic member 49 is located on the inner surface of the hollow cylinder 47. A movable plate 410 is provided at the rear end of the sleeve 48. The rear end of the movable plate 410 abuts against the pressing plate 5. When the buffer fixing cap 4 is threadedly connected to the transmission shaft 22, the buffer fixing cap 4 gradually approaches the pressing plate 5, causing the movable plate 410 to transfer the pressure to the second elastic member 49. The second elastic member 49 contracts and the sleeve 48 gradually coincides with the hollow cylinder 47. Part of the pressure continues to be transmitted downward to the annular buffer pad 43, and the annular buffer pad 43 deforms for the second buffer, thereby buffering the extrusion force generated on the grinding wheel 3 during the tightening process of the buffer fixing cap 4, realizing the automatic control of the extrusion force on the grinding wheel 3, avoiding potential safety hazards or quality risks caused by excessive or too small extrusion force on the grinding wheel 3, and thus ensuring the safety and quality of blade grinding.

[0029] Working process: First, the grinding wheel 3 is pushed along the transmission shaft 22 until it contacts the limiter 23; further, the protrusion 51 on the pressure plate 5 is aligned with the rectangular groove 311 and pushed toward the grinding wheel 3 along the transmission shaft 22, so that the protrusion 51 is gradually inserted into the rectangular groove 311; further, the elastic member 53 is compressed to drive the movable block 54 to shrink in the storage groove 52, but when the protrusion 51 moves to the trapezoidal groove 312, the space becomes larger, so that the elastic member 53 is compressed less and stretches, driving the movable block 54 to extend into the trapezoidal groove 312 , thereby achieving the fixation of the pressure plate 5 and the core 31 of the grinding wheel 3; further, the buffer fixing cap 4 is threadedly connected to the transmission shaft 22, so that the pressure on the movable plate 410 becomes larger and moves into the inner cavity 42, so that the sleeve 48 and the hollow cylinder 47 gradually overlap, and the second elastic member 49 contracts; further, part of the pressure is continuously transmitted downward to the annular buffer pad 43, and the annular buffer pad 43 is deformed into a second buffer, thereby buffering the extrusion force generated on the grinding wheel 3 during the tightening process of the buffer fixing cap 4.

[0030] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0031] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0032] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high-precision blade grinding machine component, characterized in that: It includes a grinding machine body (1), a transmission structure (2) is provided at the rear side of the upper end of the grinding machine body (1), the transmission structure (2) includes a transmission plate (21), a transmission shaft (22) is provided at the left side of the front end of the transmission plate (21), a limiting member (23) is provided at the rear side position of the outer surface of the transmission shaft (22), a grinding wheel (3) is provided at the middle position of the outer surface of the transmission shaft (22), the front end of the transmission shaft (22) is connected to a buffer fixing cap (4), a pressing plate (5) is provided between the buffer fixing cap (4) and the grinding wheel (3), the grinding wheel (3) includes a core body (31), rectangular grooves (311) are symmetrically provided at the left and right sides of the front end of the core body (31), and trapezoidal grooves (312) are symmetrically provided in the grooves of the rectangular grooves (311).

2. The high-precision blade grinding machine component according to claim 1, characterized in that The inner surface of the pressing plate (5) is connected to the transmission shaft (22), and convex blocks (51) are symmetrically provided at the left and right sides of the rear end of the pressing plate (5), receiving grooves (52) are symmetrically provided at the left and right ends of the convex blocks (51), and elastic members (53) are provided in the grooves of the receiving grooves (52).

3. The high-precision blade grinding machine component according to claim 2, characterized in that, One end of the elastic member (53) away from the receiving groove (52) is provided with a movable block (54), the movable block (54) is adaptively connected to the trapezoidal groove (312), and the convex block (51) is adaptively connected to the rectangular groove (311).

4. A high-precision blade grinding machine component according to claim 1, characterized in that The front end of the buffer fixing cap (4) is provided with a threaded port (41), the rear end of the threaded port (41) is connected to an inner cavity (42), and an annular buffer pad (43) is provided on the front surface of the inner cavity (42).

5. A high-precision blade grinding machine component according to claim 4, characterized in that, A cavity (44) is provided inside the annular buffer pad (43), elastic balls (45) are evenly distributed in the cavity of the cavity (44), an annular plate (46) is provided at the rear end of the annular buffer pad (43), and hollow cylinders (47) are evenly distributed at the rear end of the annular plate (46).

6. A high-precision blade grinding machine component according to claim 5, characterized in that, A sleeve (48) is sleeved on the outer surface of the hollow cylinder (47), a second elastic member (49) is provided inside the sleeve of the sleeve (48), the lower end of the second elastic member (49) is located on the inner surface of the hollow cylinder (47), a movable plate (410) is provided at the rear end of the sleeve (48), and the rear end of the movable plate (410) abuts against the pressing plate (5).

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