Centerless grinding machine

Abstract

The centerless grinding machine comprises a rack, a grinding wheel, a guide wheel and a supporting block. The grinding wheel and the guide wheel are rotatably arranged on the rack around the axes of the grinding wheel and the guide wheel. The supporting block is arranged on the rack and located between the grinding wheel and the guide wheel, a supporting part is arranged at the top of the supporting block, the horizontal height of the supporting part gradually rises from the feeding end to the discharging end, and the horizontal height of the discharging end of the supporting part is lower than the horizontal height of the axis of the grinding wheel by a preset distance. Due to the fact that the height of the feeding end of the supporting part is lower than that of the discharging end, the feeding opening space of the feeding end can be enlarged, square strips can enter conveniently, the feeding end of the supporting part sinks, the supporting part, the grinding wheel and the guide wheel form a clamping space at the feeding end, and a certain clamping effect exists between the grinding wheel and the supporting part to a workpiece to be ground. And therefore, the grinding force of the grinding wheel on the workpiece to be ground is improved, and the corners of the square strip can be ground away quickly. In this way, barreling of the square bars by the centerless grinding machine can be achieved, meanwhile, the barreling speed can be ensured, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of mechanical processing technology, and in particular to a centerless grinder. Background Art

[0002] Existing centerless grinders are used to process round bars. For infrared material bars, usually small round bars are put on large crystals, and then the small round bars are rolled by centerless grinders. This method is easy to break when taking long bars, and there are more scraps, and the material utilization rate is low. At present, large crystals can be cut into small-sized bars by cutting square bars, which has a high material utilization rate, but the existing centerless grinders are not convenient for rolling square bars. Utility Model Content

[0003] Based on the above problems, the present application provides a centerless grinder that is convenient for rolling and grinding square bars.

[0004] The technical solution proposed in this application is:

[0005] A centerless grinding machine, comprising:

[0006] frame;

[0007] A grinding wheel is rotatably arranged on the frame around its own axis;

[0008] A guide wheel is rotatably arranged on the frame around its own axis;

[0009] A support block is arranged on the frame and located between the grinding wheel and the guide wheel. A support portion is provided on the top of the support block. The horizontal height of the support portion gradually increases from the feeding end to the discharging end, and the horizontal height of the discharging end of the support portion is lower than the horizontal height of the grinding wheel axis by a preset distance.

[0010] Furthermore, the grinding wheel and the guide wheel are arranged to be relatively inclined in the horizontal direction, and the distance between the feeding ends of the grinding wheel and the guide wheel is greater than the distance between the discharging ends of the two.

[0011] Furthermore, an angle α between the axis line of the grinding wheel and the axis line of the guide wheel is 0°<α≤5°.

[0012] Furthermore, it also includes a rotating seat, which is rotatably arranged on the frame around an axis in the vertical direction, and the guide wheel is rotatably arranged on the rotating seat around its own axis.

[0013] Furthermore, the support portion has an inclination angle of 3° to 6° in the vertical direction relative to the axis of the grinding wheel.

[0014] Furthermore, the supporting portion is an arc-shaped groove.

[0015] Furthermore, it also includes a first driving member, which is arranged on the frame and connected to the grinding wheel.

[0016] Furthermore, it also includes a second driving member, which is arranged on the frame and connected to the guide wheel.

[0017] Furthermore, it also includes a dust cover, which is arranged on the frame and covers the guide wheel and the grinding wheel.

[0018] Furthermore, it also includes a material unloading mechanism, which is arranged on the frame and corresponds to the discharge ends of the grinding wheel and the guide wheel.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] Taking the above-mentioned centerless grinder as an example, since the height of the feed end of the support part is lower than that of the discharge end, the feed port space of the feed end can be increased to facilitate the entry of the square bar. At the same time, the feed end of the support part sinks, so that the support part, the grinding wheel and the guide wheel form a clamping space at the feed end. After the workpiece to be ground enters the clamping space, there is a certain clamping effect between the grinding wheel and the support part on the workpiece to be ground, thereby increasing the grinding force of the grinding wheel on the workpiece to be ground, and then the edges and corners of the square bar can be quickly ground off. At the same time, the horizontal height of the discharge end of the support part is a preset distance lower than the axis of the grinding wheel, ensuring that the workpiece is rolled into a bar of a preset size. In this way, the rolling of the square bar by the centerless grinder can be realized, and at the same time, the rolling speed can be ensured, and the processing efficiency can be improved.

[0021] In addition, since the centerless grinder can directly roll grind the square bar, there is no need to put small round bars on the large crystal, which improves the material utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present application and constitute a part of the specification. They are used together with the embodiments of the present application to explain the present application and do not constitute a limitation of the present application.

[0023] Figure 1 A schematic diagram of the structure of a centerless grinder provided in one embodiment of the present application;

[0024] Figure 2 for Figure 1 The schematic diagram of the structure of some mechanisms in the centerless grinder shown;

[0025] Figure 3 for Figure 2 A schematic diagram of a top view of a part of the mechanism shown;

[0026] Figure 4 for Figure 1The schematic diagram of the layout structure of the feeding end of the grinding wheel, guide wheel and support block in the centerless grinder shown;

[0027] Figure 5 for Figure 2 The schematic diagram of the layout structure of the grinding wheel, guide wheel and support block in the centerless grinder is shown.

[0028] Description of labels:

[0029] 100. Centerless grinder; 110. Frame; 120. Grinding wheel; 130. Guide wheel; 140. Support block; 141. Support part; 150. Rotating seat; 161. First driving member; 162. Second driving member; 170. Dust cover; 180. Unloading mechanism; 190. Material guiding structure. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In order to facilitate understanding of the technical solution of the present application, the reasons why the existing centerless grinder is not convenient for rolling square bars are explained: since rolling square bars into round bars requires grinding more edges and corners, it takes a long time for the existing centerless grinder to directly roll the square bars. Therefore, it is usually necessary to rough-grind the edges and corners of the square bars first to form a quasi-round bar, and then place it on the centerless grinder for rolling. The process is also more numerous and cumbersome, and the processing efficiency is low.

[0033] Please refer to Figures 1 to 3An embodiment of the present application provides a centerless grinder, comprising a frame 110, a grinding wheel 120, a guide wheel 130 and a support block 140. The grinding wheel 120 and the guide wheel 130 are both rotatably arranged on the frame 110 around their own axes. The support block 140 is arranged on the frame 110 and is located between the grinding wheel 120 and the guide wheel 130, and is used to support a workpiece to be ground, so that the workpiece to be ground is rolled between the grinding wheel 120 and the guide wheel 130.

[0034] Further, please also refer to Figure 4 A support portion 141 for supporting the workpiece to be ground is provided on the top of the support block 140. The horizontal height of the support portion 141 gradually increases from the feeding end to the discharging end, and the horizontal height of the discharging end of the support portion 141 is lower than the horizontal height of the axis of the grinding wheel 120 by a preset distance.

[0035] It is understandable that the horizontal heights of the axes of the grinding wheel 120 and the guide wheel 130 are the same, so as to facilitate the rolling of the workpiece to be ground. In addition, it should be explained that the above-mentioned preset distance is determined according to the size of the finished bar. The workpiece to be ground is transported from the feed end to the discharge end, and the grinding wheel 120 rolls the workpiece to be ground. When it is transported to the discharge end for discharge, the workpiece has been rolled to form a finished bar. At this time, the axis of the finished bar is at the same height as the axis of the grinding wheel 120, so the preset distance is determined according to the size of the finished bar and is the radius of the finished bar.

[0036] Taking the above-mentioned centerless grinder as an example, since the height of the feeding end of the support part 141 is lower than the height of the discharging end, the feeding port space of the feeding end can be increased, which is convenient for the square bar to enter. At the same time, the feeding end of the support part 141 sinks, so that the support part 141, the grinding wheel 120 and the guide wheel 130 form a clamping space at the feeding end. After the workpiece to be ground enters the clamping space, there is a certain clamping effect between the grinding wheel 120 and the support part 141 on the workpiece to be ground, thereby increasing the grinding force of the grinding wheel 120 on the workpiece to be ground, and then the edges and corners of the square bar can be quickly ground off. At the same time, the horizontal height of the discharging end of the support part 141 is a preset distance lower than the axis of the grinding wheel 120, ensuring that the workpiece is rolled into a bar of a preset size. In this way, the rolling of the square bar by the centerless grinder can be realized, and the rolling speed can be ensured at the same time, improving the processing efficiency.

[0037] In addition, since the centerless grinder can directly roll grind the square bar, there is no need to put small round bars on the large crystal, which improves the material utilization rate.

[0038] It should be explained that the feeding end of the support portion 141 is sunken compared to the discharging end thereof, so that at the feeding end, a larger space can be formed between the grinding wheel 120, the guide wheel 130 and the support portion 141, and after the workpiece to be ground reaches the feeding end, the center of the workpiece to be ground is located below the axis of the grinding wheel 120 and the guide wheel 130, and Figure 4In the illustrated embodiment, the grinding wheel 120 rotates clockwise, so the grinding wheel 120 and the support portion 141 can have a certain clamping effect on the workpiece to be ground, thereby increasing the grinding force.

[0039] Furthermore, the inclination angle of the support portion 141 in the vertical direction relative to the axis of the grinding wheel 120 is 3°~6°. For example, when the axial length of the support portion 141 along the grinding wheel 120 is 260 mm, the height of the feed end of the support portion 141 is 15~26 mm lower than the height of the discharge end of the support portion 141.

[0040] In one embodiment, the support portion 141 is an arc-shaped groove. Figure 4 As shown, an arc groove is provided on the top of the support block 140. In this way, when the square bar is tumbled, the square bar can rotate in the arc groove to avoid the situation of material jamming during the rotation of the square bar.

[0041] It should be noted that, in other embodiments, when the workpiece to be ground is a quasi-circular bar, the support portion 141 may also be configured as an arc-shaped protrusion or other shapes, which is not limited here.

[0042] Please also see Figure 5 In one embodiment, the grinding wheel 120 and the guide wheel 130 are tilted in the horizontal direction, and the distance between the feeding ends of the grinding wheel 120 and the guide wheel 130 is greater than the distance between the discharging ends of the two. In this way, the feeding port space can be further increased to facilitate the entry of square-shaped workpieces to be ground.

[0043] Specifically, the angle between the axis of the grinding wheel 120 and the axis of the guide wheel 130 is α, and 0°<α≤5°.

[0044] See also Figures 1 to 3 In one embodiment, the centerless grinder further includes a rotating seat 150, which is rotatably disposed on the frame 110 around a vertical axis, and the guide wheel 130 is rotatably disposed on the rotating seat 150 around its own axis, thereby adjusting the angle of the guide wheel 130 so that the guide wheel 130 and the grinding wheel 120 are tilted in the horizontal direction.

[0045] Of course, in other embodiments, the grinding wheel 120 may be rotatably disposed on the rotating seat 150 around its own axis to adjust the angle of the grinding wheel 120 so that the grinding wheel 120 and the guide wheel 130 are tilted in the horizontal direction. Since the volume and mass of the grinding wheel 120 are greater than those of the guide wheel 130, it is preferred to adjust the angle of the guide wheel 130 through the rotating seat 150.

[0046] In one embodiment, the centerless grinder includes a first driving member 161 and a second driving member 162, both of which are disposed on the frame 110, and the first driving member 161 is connected to the grinding wheel 120 to drive the grinding wheel 120 to rotate, and the second driving member 162 is connected to the guide wheel 130 to drive the guide wheel 130 to rotate.

[0047] Specifically in this embodiment, the first driving member 161 and the second driving member 162 are respectively connected to the grinding wheel 120 and the guide wheel 130 through a synchronous belt structure.

[0048] In one embodiment, the centerless grinder further includes a dust cover 170, which is disposed on the frame 110 and covers the grinding wheel 120 and the guide wheel 130 to prevent a large amount of dust generated during the rolling grinding process from entering the external space and affecting the external environment.

[0049] In one embodiment, the centerless grinder further includes a feeding mechanism 180 , which is disposed on the frame 110 and arranged corresponding to the discharge ends of the grinding wheel 120 and the guide wheel 130 , and is used for feeding the finished bar stock after rolling.

[0050] It should be noted that the feeding structure includes a conventional conveyor belt structure, which will not be described in detail. At the same time, in order to facilitate loading, a loading mechanism can be arranged at the feeding end of the grinding wheel 120 and the guide wheel 130 to realize automatic loading.

[0051] Furthermore, the centerless grinder also includes a material guide structure 190. The material guide structure 190 is provided at the feeding end and the discharging end of the grinding wheel 120 and the guide wheel 130 to facilitate the feeding of the workpiece to be ground and the discharging of the finished bar material.

[0052] In summary, the centerless grinder provided by the present application has at least the following advantages:

[0053] 1. The feeding end of the support part 141 is lower than the height of the discharging end thereof, thereby increasing the feeding port space and facilitating the feeding of the workpiece to be ground; at the same time, the support part 141, the grinding wheel 120 and the guide wheel 130 can form a clamping space at the feeding end, increase the grinding force, and can quickly grind off the edges and corners of the square strip, thereby improving the rolling efficiency;

[0054] 2. Since the centerless grinder can quickly roll and grind square bars, there is no need to roll and grind small round bars on large crystals, which improves material utilization;

[0055] 3. The guide wheel 130 and the grinding wheel 120 are tilted in the horizontal direction, and the distance between the feeding ends of the two is larger, which further increases the feeding port space and facilitates the feeding of square bars.

[0056] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A centerless grinder, characterized in that: include: frame; A grinding wheel is rotatably arranged on the frame around its own axis; A guide wheel is rotatably arranged on the frame around its own axis; A support block is arranged on the frame and located between the grinding wheel and the guide wheel. A support portion is provided on the top of the support block. The horizontal height of the support portion gradually increases from the feeding end to the discharging end. The horizontal height of the discharging end of the support portion is lower than the horizontal height of the grinding wheel axis by a preset distance.

2. The centerless grinding machine according to claim 1, characterized in that: The grinding wheel and the guide wheel are arranged to be relatively inclined in the horizontal direction, and the distance between the feeding ends of the grinding wheel and the guide wheel is greater than the distance between the discharging ends thereof.

3. The centerless grinding machine according to claim 2, characterized in that: The angle α between the axis line of the grinding wheel and the axis line of the guide wheel is 0°<α≤5°.

4. The centerless grinding machine according to claim 2, characterized in that: It also includes a rotating seat, which is rotatably arranged on the frame around an axis in the vertical direction; the guide wheel is rotatably arranged on the rotating seat around its own axis.

5. The centerless grinding machine according to claim 1, characterized in that: The support portion has an inclination angle of 3° to 6° in the vertical direction relative to the axis of the grinding wheel.

6. The centerless grinding machine according to claim 1, characterized in that: The supporting portion is an arc-shaped groove.

7. The centerless grinder according to any one of claims 1 to 6, characterized in that: It also includes a first driving member, which is arranged on the frame and connected to the grinding wheel.

8. The centerless grinder according to any one of claims 1 to 6, characterized in that: It also includes a second driving member, which is arranged on the frame and connected to the guide wheel.

9. The centerless grinding machine according to any one of claims 1 to 6, characterized in that: It also includes a dust cover, which is arranged on the frame and covers the guide wheel and the grinding wheel.

10. The centerless grinding machine according to any one of claims 1 to 6, characterized in that: It also includes a material unloading mechanism, which is arranged on the frame and corresponds to the discharge ends of the grinding wheel and the guide wheel.

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