Novel grinding disc

Abstract

The utility model discloses a novel grinding disc, which belongs to the technical field of grinding discs, and comprises a grinding disc main body and a main shaft arranged on the grinding disc main body, the main shaft is vertically arranged on the upper end surface of the grinding disc main body, the lower end surface of the grinding disc main body is provided with a mounting groove, and a grinding sheet is assembled in the mounting groove; an inner cooling hole is formed in the upper end face of the main shaft in an inward concave mode, an inner cooling flow guide groove is formed in the position, close to and located on the inner side of the mounting groove, of the lower end face of the grinding disc body, and the inner cooling flow guide groove communicates with the lower end of the inner cooling hole. An outer cooling flow guide groove is formed in the position, close to and located on the outer side of the mounting groove, of the grinding disc body. The grinding disc solves the problems that in the machining process of the grinding disc, grinding fluid cannot cool and lubricate the contact face between the grinding disc and a workpiece in time, and dry grinding and knife vibration lines are caused.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding discs, in particular to a new type of grinding disc. Background Art

[0002] Grinding discs are mainly used for polishing objects and are commonly used in industrial production, maintenance and daily life. Grinding discs serve as carriers for coated or embedded abrasives, allowing the abrasive grains to perform cutting functions. They also serve as shaping tools for the grinding surface. However, during the machining process, the grinding fluid of existing grinding discs cannot timely cool and lubricate the contact surface between the grinding disc and the workpiece, resulting in dry grinding and chatter marks. Multiple repeated machining is required to remove chatter marks and workpiece surface roughness, affecting machining efficiency. Utility Model Content

[0003] The main purpose of the present invention is to solve the above-mentioned technical problems to a certain extent, and to propose a new type of grinding disc, which solves the problem that the grinding fluid cannot cool and lubricate the contact surface between the grinding disc and the workpiece in time during the processing, resulting in dry grinding and chatter marks.

[0004] The above-mentioned problem to be solved by the present invention is achieved through the following technical solutions:

[0005] A new type of grinding disc is proposed, including a grinding disc body and a main shaft arranged on the grinding disc body, the main shaft is arranged perpendicularly to the upper end surface of the grinding disc body, the lower end surface of the grinding disc body is provided with a mounting groove, and a grinding disc is installed in the mounting groove; the upper end surface of the main shaft is recessed inwardly and provided with an internal cooling hole, the lower end surface of the grinding disc body is close to and located on the inner side of the mounting groove and is provided with an internal cooling guide groove, the internal cooling guide groove is connected with the lower end of the internal cooling hole; the grinding disc body is close to and located on the outer side of the mounting groove and is provided with an external cooling guide groove.

[0006] In some embodiments, the lower end surface of the grinding wheel body is provided with four mounting grooves in an array with the main shaft as the axis, wherein the inner side of each mounting groove is provided with the inner cooling guide groove, and the outer side of each mounting groove is provided with the outer cooling guide groove.

[0007] In some embodiments, the inner cooling guide groove is arranged at an angle of 30 degrees to the lower end surface of the grinding wheel body.

[0008] In some embodiments, the external cooling guide groove is arranged at an angle of 45 degrees to the lower end surface of the grinding wheel body.

[0009] In some embodiments, the aperture of the inner cooling guide groove is larger than the aperture of the inner cooling hole.

[0010] In some embodiments, the aperture of the external cooling guide groove is larger than the aperture of the internal cooling guide groove.

[0011] In some embodiments, a reinforcing rib is provided between the upper end surface of the grinding disc body and the main shaft, and a reinforcing protrusion is provided between the two reinforcing ribs.

[0012] The above technical solution provided by this application has the following advantages compared with the existing technology:

[0013] The utility model is provided with a main shaft integrally formed on the grinding disc body, which is clamped on the rotating shaft of the machine tool through the main shaft to drive the grinding disc body to work, and the coolant supplied by the machine tool is injected from the inner cooling hole of the main shaft and flows through the inner cooling guide groove, thereby cooling the inner side of the grinding disc and the contact area with the workpiece. At the same time, when the grinding disc body rotates clockwise, the swirling wind generated by the external cooling guide groove causes the cutting fluid to be re-introduced into the grinding block processing area to better cool the clockwise forward direction area of ​​the grinding block, thereby cooling the outer side of the grinding disc and the contact area with the workpiece, and finally cooling the outermost side of the grinding disc body by the large flow of cutting fluid, thereby solving the problem that the grinding fluid cannot cool and lubricate the contact surface between the grinding disc and the workpiece in time during the processing of the grinding disc, resulting in dry grinding and vibration marks, thereby improving the service life of the grinding disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 This is a structural diagram of the grinding disc of the utility model;

[0016] Figure 2 This is a structural diagram of the grinding disc of the utility model;

[0017] Figure 3 It is a cross-sectional view of the grinding disc of the utility model.

[0018] Description of Figure Numbers:

[0019] 1- grinding disc body; 2- main shaft; 3- mounting groove; 4- grinding disc; 5- internal cooling hole; 6- internal cooling guide groove; 7- external cooling guide groove; 8- reinforcing rib; 9- reinforcing protrusion. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0023] like Figure 1-3As shown, the present invention proposes a new type of grinding disc, including a grinding disc body 1 and a main shaft 2 arranged on the grinding disc body 1, the main shaft 2 is vertically arranged on the upper end surface of the grinding disc body 1, and the lower end surface of the grinding disc body 1 is provided with a mounting groove 3, wherein the lower end surface of the grinding disc body 1 is arranged with four mounting grooves 3 arranged in an array with the main shaft 2 as the axis, and grinding discs 4 are respectively assembled in the mounting grooves 3, wherein the grinding discs 4 are fixed in the mounting grooves 3 by screws, and when the grinding discs 4 are worn to a certain extent, the grinding discs 4 can be directly replaced without adjusting the clamping position of the main shaft 2; the upper end surface of the main shaft 2 is recessed with an internal cooling hole 5, and the grinding disc An inner cooling guide groove 6 is provided on the lower end surface of the main body 1 and close to and located on the inner side of each mounting groove 3. The inner cooling guide groove 6 is connected to the lower end of the inner cooling hole 5, wherein the inner cooling guide groove 6 is set at an angle of 30 degrees to the lower end surface of the grinding wheel main body 1, and the aperture of the inner cooling guide groove 6 is larger than the aperture of the inner cooling hole 5; an outer cooling guide groove 7 is provided on the grinding wheel main body 1 near and located on the outer side of each mounting groove 3, wherein the outer cooling guide groove 7 is set along the rotation direction of the grinding wheel main body 1 and at an angle of 45 degrees to the lower end surface of the grinding wheel main body 1, and the aperture of the outer cooling guide groove 7 is larger than the aperture of the inner cooling guide groove 6.

[0024] In this embodiment, a main shaft 2 is integrally formed on the grinding disc body 1, and the main shaft 2 is clamped on the rotating axis of the machine tool to drive the grinding disc body 1 to work. By using the main shaft 2 clamping method, multi-directional mechanical movement can be achieved, reducing the number of corrections of the grinding disc 4 can save a lot of processing time and cost. No matter whether the processing is unidirectional processing or XY bidirectional processing, there will be no subsequent problems with the grinding wheel processing of the grinding machine; during processing, the coolant supplied by the machine tool is injected from the inner cooling hole 5 of the main shaft 2 and flows through the inner cooling guide groove 6 through the cooling method of the main shaft 2, thereby cooling the inner side of the grinding disc 4 and the contact area with the workpiece, and at the same time, when the grinding disc body 1 rotates clockwise, the outer cooling guide groove 7 generates The swirling wind causes the cutting fluid to be reintroduced into the grinding block processing area in order to better cool the clockwise moving area of ​​the grinding block, thereby cooling the outer side of the grinding disc 4 and the contact area with the workpiece, and finally cooling the outermost side of the grinding disc body 1 by the large flow of cutting fluid. The above structure cools and lubricates the inner and outer sides of the grinding disc 4, which can effectively penetrate the contact between the grinding disc 4 and the workpiece surface, more effectively reduce the friction between the grinding disc 4 and the workpiece, and increase the service life of the grinding disc 4, solving the problem of dry grinding and chatter marks caused by the inability of the grinding fluid to cool and lubricate the contact surface between the grinding disc 4 and the workpiece in time during the machining process.

[0025] Furthermore, a reinforcing rib 8 is provided between the upper end surface of the grinding disc body 1 and the main shaft 2, and a reinforcing protrusion 9 is provided between the two reinforcing ribs 8. This structure strengthens the overall installation and use strength.

[0026] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A new type of grinding disc, characterized in that: The machine comprises a grinding disc body and a main shaft provided on the grinding disc body, wherein the main shaft is vertically provided on the upper end surface of the grinding disc body, and a mounting groove is provided on the lower end surface of the grinding disc body, and a grinding disc is installed in the mounting groove; The upper end surface of the spindle is recessed inwardly and provided with an inner cooling hole, and the lower end surface of the grinding disc body is provided with an inner cooling guide groove close to and located inside the mounting groove, and the inner cooling guide groove is communicated with the lower end of the inner cooling hole; An external cooling guide groove is provided on the grinding disc body near and outside the mounting groove.

2. The new grinding disc according to claim 1, characterized in that: The lower end surface of the grinding wheel body is provided with four mounting grooves in an array with the main shaft as the axis center, wherein the inner side of each mounting groove is provided with the inner cooling guide groove, and the outer side of each mounting groove is provided with the outer cooling guide groove.

3. The new grinding disc according to claim 2, characterized in that: The inner cooling guide groove is arranged at an angle of 25-35 degrees to the lower end surface of the grinding disc body.

4. The new grinding disc according to claim 2, characterized in that: The external cooling guide groove is arranged at an angle of 40-50 degrees to the lower end surface of the grinding disc body.

5. The new grinding disc according to claim 1, characterized in that: The aperture of the inner cooling guide groove is larger than the aperture of the inner cooling hole.

6. The new grinding disc according to claim 1, characterized in that: The aperture of the external cooling guide groove is larger than the aperture of the internal cooling guide groove.

7. The new grinding disc according to claim 1, characterized in that: A reinforcing rib is provided between the upper end surface of the grinding disc body and the main shaft, and a reinforcing protrusion is provided between the two reinforcing ribs.

Images