Grinding head and grinding machine

Abstract

The utility model relates to a grinding head and a grinding machine, and relates to the technical field of turnout grinding. The grinding head is used for being assembled in the grinding machine and comprises a base used for being connected with a grinding driving piece, a first connecting piece, a second connecting piece and a third connecting piece, and the base is provided with a mounting cavity and a first opening; the adjusting part is mounted on the base; the grinding block is used for grinding the workpiece and connected with the adjusting part, one part of the grinding block is contained in the mounting cavity, and the other part of the grinding block penetrates through the first opening and extends out of the base; the adjusting piece is configured to drive the grinding block to move in the axis direction of the first opening. And when the part, extending out of the base, of the grinding head is excessively abraded and cannot meet normal grinding work, the grinding head can be driven by the adjusting piece to move along the first outlet, so that more grinding heads extend out of the base. The base is prevented from making contact with the turnout, and the grinding head can be more fully utilized.

Description

Technical Field

[0001] The utility model relates to the technical field of switch grinding, and particularly relates to a grinding head and a grinding machine. Background Art

[0002] In order to ensure the safe operation of trains, it is necessary to repair the railway switches. Especially when defects such as vertical wear, pitting, chipping, and fish scale patterns appear on the switches, it is necessary to use a grinding machine to grind the switches. In order to facilitate the grinding of switches, a variety of grinding machines for switches have been designed currently.

[0003] Some grinding machines will install the grinding head on the base. When installing the grinding head on the base, part of the grinding head will be accommodated in the base. When the worn part of the grinding head exposed from the base approaches the surface of the base, it is necessary to replace the grinding head to avoid the base contacting the switch during the grinding process and damaging the switch. However, this also results in the waste of the grinding material accommodated in the base, and the grinding material of the grinding head cannot be fully utilized. Summary of the Utility Model

[0004] The utility model provides a grinding head and a grinding machine, which are used to provide a grinding head and a grinding machine that can improve the utilization rate of grinding materials.

[0005] In a first aspect, the utility model provides a grinding head, which is used to be assembled in a grinding machine. The grinding head includes: a base for connecting with a grinding driving member, the base has an installation cavity, and the base is provided with a first opening; an adjusting member installed on the base; and a grinding block for grinding a workpiece, which is connected with the adjusting member. A part of the grinding block is accommodated in the installation cavity, and another part of the grinding block passes through the first opening and extends out of the base; the adjusting member is configured to be able to drive the grinding block to move along the axis direction of the first opening.

[0006] In an embodiment, the base is provided with a first threaded hole, and the adjusting member is threadedly connected to the first threaded hole. The axis direction of the first threaded hole is the same as the axis direction of the first opening.

[0007] In an embodiment, the base is provided with a guiding groove in the installation cavity, and the extending direction of the guiding groove is the same as the axis direction of the first opening; a guiding block slidably installed in the guiding groove is further provided in the accommodation cavity, and the guiding block is connected with the grinding block.

[0008] In an embodiment, at least two guiding grooves are provided in the installation cavity, and the at least two guiding grooves are slidably connected with the guiding block.

[0009] In an embodiment, the guiding block is detachably connected with the grinding block through a connecting member, and the maximum outer diameter of the grinding block is less than or equal to the inner diameter of the first opening.

[0010] In one embodiment, the guiding block and the grinding block are arranged at intervals, and an elastic buffer is clamped between the guiding block and the grinding block.

[0011] In one embodiment, the grinding block is provided with a second threaded hole, one end of the connecting piece is threadedly connected to the second threaded hole, the other end of the connecting piece extends out of the guiding block and is connected to a locking nut, and the locking nut locks the connecting piece and the guiding block.

[0012] In one embodiment, a plurality of heat dissipation holes are formed in the outer surface of the base, and the heat dissipation holes communicate with the installation cavity.

[0013] In one embodiment, a maintenance opening window is further formed in the outer surface of the base, the maintenance opening window communicates with the installation cavity, and a cover plate is detachably connected to the base, and the cover plate is used to close the maintenance opening window.

[0014] In a second aspect, the present utility model further provides a grinding machine, which includes: a grinding driving member; and a grinding head as described above, and the grinding head is connected to the grinding driving member.

[0015] Compared with the prior art, the advantages of the present utility model are that by accommodating part of the grinding head in the base and connecting the grinding head through an adjusting member installed on the base. When the worn part of the grinding head extending out of the base is too much to meet the normal grinding work, the grinding head can be driven by the adjusting member to move along the first outlet, so that the grinding head extends out of the base more, avoiding the contact between the base and the turnout. And the grinding head can be utilized more fully. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Hereinafter, the present utility model will be described in more detail based on embodiments and with reference to the drawings.

[0017] Figure 1 is a schematic cross-sectional structure view of the grinding head in an embodiment of the present utility model;

[0018] Figure 2 is a schematic front view structure view of the grinding head in an embodiment of the present utility model.

[0019] REFERENCE MARKS:

[0020] 1. Base; 11. Installation cavity; 12. Guide groove; 13. Heat dissipation hole; 14. Connecting flange; 2. Adjusting member; 3. Grinding block; 4. Guiding block; 5. Connecting piece; 6. Elastic buffer; 7. Cover plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below with reference to the drawings.

[0022] As Figure 1 and Figure 2As shown in the figure, the present utility model provides a grinding head for being assembled in a grinding machine, which includes: a base 1, an adjusting member 2, and a grinding block 3. The adjusting member 2 is installed on the base 1, and the grinding block 3 is connected to the adjusting member 2.

[0023] The base 1 is provided with an installation cavity 11 and a first opening, and the first opening communicates the installation cavity 11 with the outside. During use, the base 1 is installed on the grinding driving member of the grinding machine. For example, the base 1 is installed on the driving motor of the grinding machine, and the driving motor drives the base 1 to rotate, and the grinding work of the grinding block 3 is realized.

[0024] A part of the grinding block 3 is received in the installation cavity 11, and another part of the grinding block 3 passes through the first opening and extends out of the base 1. When the grinding block 3 is not severely worn, the grinding block 3 can be adjusted without passing through the adjusting member 2, and the grinding of the turnout is directly realized through the part of the grinding block 3 extending out of the base 1.

[0025] When the grinding block 3 is severely worn, the adjusting member 2 can be used to drive the grinding block 3 to move along the axis direction of the first opening, so that the grinding block 3 extends out of the base 1 more. While avoiding the base 1 from wearing the turnout, the grinding material of the grinding block 3 is more fully utilized.

[0026] In some embodiments, the base 1 is in a turntable shape structure, and the axis direction of the first opening is the same as the axis direction of the base 1. In other embodiments, the base 1 can also be set to other shapes.

[0027] As Figure 1 shown, in some embodiments, the base 1 is provided with a first threaded hole, and the adjusting member 2 is threadedly connected to the first threaded hole, and the axis direction of the first threaded hole is the same as the axis direction of the first opening.

[0028] That is to say, the adjusting member 2 is provided with an external thread at least at the connection with the base 1, and the adjusting member 2 can be moved along the axis direction of the first threaded hole by rotating the adjusting member 2. Since the adjusting member 2 is also connected to the grinding block 3, the grinding block 3 can be driven to move along the axis direction of the first threaded hole. Since the axis direction of the first threaded hole is the same as the axis direction of the first opening, that is to say, by screwing the adjusting member 2, the grinding block 3 can be driven to extend out of the first opening.

[0029] In some other embodiments, the adjusting member 2 can also adopt a telescopic cylinder structure, and the grinding block 3 is moved along the first opening by the elongation and shortening of the adjusting member 2.

[0030] As Figure 1 shown, in some implementation manners, the base 1 is provided with a guiding groove 12 in the installation cavity 11, the extending direction of the guiding groove 12 is the same as the axis direction of the first opening, and a guiding block 4 slidably installed in the guiding groove 12 is further provided in the accommodating cavity, and the guiding block 4 is connected to the grinding block 3.

[0031] The moving direction of the grinding block 3 can be limited by the guiding block 4 slidably installed in the guiding groove 12 when the grinding block 3 moves, avoiding the deviation of the grinding block 3 during movement.

[0032] Such as Figure 1 As shown, in some embodiments, the guiding block 4 is arranged between the adjusting member 2 and the grinding block 3, preventing the direct connection between the adjusting member 2 and the grinding block 3. The moving direction of the adjusting member 2 can be limited by the guiding block 4. Among them, the end of the adjusting member 2 can be embedded in the guiding block 4 and rotatably connected to the guiding block 4. The movement of the guiding block 4 along the axis direction of the first opening can be realized on the premise of avoiding the rotation of the guiding block 4 when the adjusting member 2 is screwed.

[0033] In some other embodiments, the adjusting member 2 can also be directly connected to the grinding block 3, and only the guiding block 4 is connected around the grinding block 3 to limit the moving direction of the grinding block 3.

[0034] Among them, the guiding block 4 is made of a heat-dissipating alloy plate.

[0035] Such as Figure 1 As shown, in some implementation manners, at least two guiding grooves 12 are provided in the installation cavity 11, and the at least two guiding grooves 12 are slidably connected to the guiding block 4. Through the cooperation of the multiple guiding grooves 12 and the guiding block 4, the deflection of the guiding block 4 during sliding can be avoided, and the sliding accuracy of the guiding block 4 is further improved. Such as Figure 1 As shown, guiding grooves 12 are provided on both the left and right sides of the grinding block 3 to realize the limitation of the guiding directions on both sides of the guiding block 4.

[0036] Such as Figure 1 As shown, in some embodiments, the guiding grooves 12 in the installation cavity 11 are symmetrically arranged.

[0037] Such as Figure 1 As shown, in some embodiments, the guiding block 4 is detachably connected to the grinding block 3 through the connecting member 5, and the maximum outer diameter of the grinding block 3 is less than or equal to the inner diameter of the first opening. When the grinding block 3 is worn to the point where it needs to be replaced, the grinding block 3 can be separated from the guiding block 4 by adjusting the connecting member 5, and then the grinding block 3 can be removed from the installation cavity 11 through the first opening, realizing the disassembly of the grinding block 3. Subsequently, the newly replaced grinding block 3 can be connected by using the connecting member 5 to realize the replacement of the grinding block 3. During the process of replacing the grinding head, there is no need to replace the base 1 and the adjusting member 2, reducing the replacement cost of the grinding head.

[0038] Such as Figure 1 As shown, in some embodiments, the guiding block 4 and the grinding block 3 are arranged at intervals, and an elastic buffer member 6 is clamped between the guiding block 4 and the grinding block 3. When the grinding block 3 grinds the turnout, the vibration can be absorbed through the elastic buffer member 6. Avoid damaging the grinding block 3 or the grinding machine when the grinding force is too large.

[0039] Among them, the elastic buffer 6 can be made of high-temperature resistant and heat-conducting silicone material.

[0040] As Figure 1 shown, in some embodiments, the grinding block 3 is provided with a second threaded hole, one end of the connecting piece 5 is threadedly connected to the second threaded hole, and the other end of the connecting piece 5 extends out of the guiding block 4 and is connected to a locking nut, and the locking nut locks the connecting piece 5 and the guiding block 4. That is to say, a bolt structure is used as the connecting piece 5 to connect the guiding block 4 and the grinding block 3. As Figure 1 shown, the grinding block 3 is connected with at least two connecting pieces 5 to improve the stability of the grinding block 3.

[0041] As Figure 1 shown, in some embodiments, the outer surface of the base 1 is provided with heat dissipation holes 13, and the heat dissipation holes 13 are all communicated with the installation cavity 11. The heat in the installation cavity 11 can be dissipated through the heat dissipation holes 13, improving the heat dissipation efficiency and prolonging the service life of the grinding head.

[0042] As Figure 1 and Figure 2 shown, the outer surface of the base 1 is provided with a plurality of heat dissipation holes 13, and the heat dissipation holes 13 are arranged around the grinding block 3. When the base 1 rotates, the heat dissipation holes 13 rotate synchronously, having a high heat dissipation efficiency.

[0043] As Figure 1 shown, in some embodiments, the outer surface of the base 1 is further provided with a maintenance window, the maintenance window is communicated with the installation cavity 11, and the base 1 is detachably connected with a cover plate 7, and the cover plate 7 is used to close the maintenance window. When there is a problem with the grinding head or the grinding block 3 is worn too much, the cover plate 7 can be separated from the base 1, and the internal situation of the installation cavity 11 can be observed through the maintenance window, so as to reasonably adjust the grinding block 3 through the adjusting member 2. The cover plate 7 is detachably installed on the base 1 by screws.

[0044] A connecting flange 14 is provided on the base 1, and the connecting flange 14 is used for fixedly connecting the drive shaft of the drive motor.

[0045] The present utility model also provides a grinding machine, which includes a grinding driving member and the above-mentioned grinding head, wherein the grinding head is connected to the grinding driving member. It can make more full use of the grinding block 3 and reduce the waste of grinding materials.

[0046] Although the present utility model has been described with reference to the preferred embodiments, various modifications thereof can be made and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any manner. The present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A grinding head, which is used to be assembled in a grinding machine, is characterized in that It includes: A base for connecting with a grinding driving member, the base having an installation cavity and the base being provided with a first opening; An adjusting member installed on the base; And A grinding block for grinding a workpiece, which is connected to the adjusting member, a part of the grinding block is received in the installation cavity, and another part of the grinding block passes through the first opening and extends out of the base; The adjusting member is configured to be able to drive the grinding block to move along the axis direction of the first opening.

2. The grinding head according to claim 1, characterized in that, The base is provided with a first threaded hole, the adjusting member is threadedly connected to the first threaded hole, and the axis direction of the first threaded hole is the same as the axis direction of the first opening.

3. The grinding head according to claim 1, wherein The base is provided with a guiding groove in the installation cavity, and the extending direction of the guiding groove is the same as the axis direction of the first opening; A guiding block slidably installed in the guiding groove is further provided in the installation cavity, and the guiding block is connected to the grinding block.

4. The grinding head according to claim 3, wherein At least two guiding grooves are provided in the installation cavity, and at least two of the guiding grooves are slidably connected to the guiding block.

5. The grinding head according to claim 3, characterized in that, The guiding block is detachably connected to the grinding block through a connecting member, and the maximum outer diameter of the grinding block is less than or equal to the inner diameter of the first opening.

6. The grinding head according to claim 3, wherein The guiding block and the grinding block are arranged at intervals, and an elastic buffer member is clamped between the guiding block and the grinding block.

7. The grinding head according to claim 5, characterized in that, The grinding block is provided with a second threaded hole, one end of the connecting member is threadedly connected to the second threaded hole, the other end of the connecting member extends out of the guiding block and is connected to a locking nut, and the locking nut locks the connecting member and the guiding block.

8. The grinding head according to claim 1, characterized in that A plurality of heat dissipation holes are provided on the outer surface of the base, and the heat dissipation holes are all communicated with the installation cavity.

9. The grinding head according to claim 1, characterized in that, An inspection opening window is further provided on the outer surface of the base, the inspection opening window communicates with the installation cavity, and a cover plate is detachably connected to the base, and the cover plate is used to close the inspection opening window.

10. A grinding machine, characterized in that, It includes: A grinding driving member; And The grinding head according to any one of claims 1-9, the grinding head is connected to the grinding driving member.

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