Sample double-end-face grinding device

Abstract

The utility model relates to the technical field of test instruments, and discloses a sample double-end-face grinding device which comprises a rack, a positioning table arranged on the rack in a sliding mode, a fixing device arranged on the positioning table and grinding heads arranged on the two sides of the rack and further comprises a dust cover rotationally arranged on the positioning table. The dustproof cover can rotate to cover the outer side of the fixing device, receding grooves allowing the grinding head to pass through are formed in the two side walls, facing the grinding head, of the dustproof cover, and the receding grooves penetrate to the lower surface of the dustproof cover in the direction facing the positioning table. And the polishing head can slide in the receding groove. The dust pollution can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of testing instruments, and in particular to a double-end surface grinding device for a specimen. Background Art

[0002] The double-end surface grinding device is a machine used for grinding non-metallic solids such as rocks, ores, concrete, etc. after rough cutting, so as to process the required high-precision cubic or cylindrical test specimens.

[0003] Reference Figure 1 The double-end surface grinding device generally includes a frame 1, a positioning table 2 that can be reciprocated and slidably arranged thereon, a fixing device 3 arranged on the positioning table 2 for fixing the sample, and two grinding heads 4 arranged on the frame 1. The grinding heads 4 are respectively located on both sides of the positioning table 2, and are each provided with a corresponding driving device to drive the grinding heads 4 to move toward or away from the grinding heads 4, and can be rotated to grind the sample. The fixing device 3 includes a bottom plate 31 fixed on the positioning table 2, a vertical rod 32, a screw 33 and a top plate 34. The top plate 34 is slidably arranged on the vertical rod 32, and the test edge is placed on the bottom plate 31, and is locked between the top plate 34 and the bottom plate 31 by the screw 33, so that the sample is fixed, and then the positions of the grinding heads 4 on both sides are adjusted, and finally the positioning table 2 is driven to slide along the length direction of the frame 1, driving the sample to move and pass through the grinding head 4, so that the sample can be polished.

[0004] Regarding the above-mentioned related technologies, a lot of dust will be generated when the test block is polished. After it is scattered onto the equipment, it is not only difficult to clean up, but also the dust pollutes the environment and may affect the use of the double-end surface grinding device. Utility Model Content

[0005] In order to reduce dust pollution, the present application provides a double-end surface grinding device for a specimen.

[0006] The present application provides a specimen double end surface grinding device, which adopts the following technical solution:

[0007] A double-end surface grinding device for a specimen comprises a frame, a positioning platform slidably arranged on the frame, a fixing device arranged on the positioning platform, and grinding heads arranged on both sides of the frame, and also comprises a dust cover rotatably arranged on the positioning platform, the dust cover can be rotated to cover the outside of the fixing device, and both side walls of the dust cover facing the grinding head are provided with clearance grooves for the grinding head to pass through, the clearance grooves pass through the lower surface of the dust cover in the direction of the positioning platform, and when the positioning platform slides, the grinding head can slide in the clearance grooves.

[0008] By adopting the above technical solution, when the dust cover is rotated and opened, the sample can be fixed on the fixing device; when the dust cover is closed on the outside of the fixing device, it can play a dust-proof effect and reduce the pollution of dust to the surrounding environment.

[0009] Optionally, the positioning platform is further provided with two side baffles, the two side baffles are respectively located on both sides of the fixing device, and the grinding head can pass over the side baffles.

[0010] By adopting the above technical solution, the side plate baffle can further reduce the space in the clearance groove, thereby improving the dust prevention effect while ensuring that the grinding head can pass through the clearance groove.

[0011] Optionally, accordion curtains are provided on both sides of each grinding head on the dust cover, and positioning pieces for connecting the accordion curtains are provided on both sides of the grinding head on the frame, and the side of the accordion curtain away from the grinding head is connected to the dust cover, and when the dust cover is closed outside the fixing device, the end of the accordion curtain facing the grinding head can be connected to the positioning piece, and when the dust cover is rotated away from the outside of the fixing device, the accordion curtain can be unlocked from the positioning piece.

[0012] By adopting the above technical solution, one side of the accordion curtain is fixed on the side wall of the dust cover, and the other side is connected to the positioning piece. Therefore, when the positioning platform slides, the accordion curtain is compressed or pulled accordingly, so that the accordion curtain can always cover the space between the positioning piece and the side wall of the dust cover, thereby further improving the dustproof effect through the accordion curtain.

[0013] Optionally, the positioning member includes a positioning rod disposed on the frame, a positioning bolt threaded on the upper end of the positioning rod, and a positioning ring disposed on the accordion curtain, and the positioning bolt can move toward the fixing device and pass through the positioning ring.

[0014] By adopting the above technical solution, the accordion curtain can be quickly connected to the positioning rod or the accordion curtain can be quickly unlocked by passing the positioning bolt through the positioning ring.

[0015] Optionally, a guide rod is provided at one end of the accordion curtain close to the grinding head, and a guide groove for inserting the upper end of the guide rod is opened on the upper side wall of the yield groove of the dust cover, and the guide groove extends along the sliding direction of the positioning platform.

[0016] By adopting the above technical solution, the guide rod slides along the guide groove, so that the accordion curtain is more stable during the stretching or contraction process.

[0017] Optionally, a limiting block is arranged on the side wall of the guide rod, and a limiting groove for the limiting block to slide is opened on the dust cover, and the limiting groove is connected to the guide groove.

[0018] By adopting the above technical solution, the stability of the accordion curtain can be further increased, and at the same time, the limiting block slides in the limiting groove, which can limit the guide rod from escaping from the guide groove.

[0019] Optionally, the fixing device includes a base plate, a vertical pole arranged at one end of the base plate, a screw arranged at the other end of the base plate, and a top plate slidably arranged on the vertical pole, the top plate is connected to a water inlet pipe, a water guide groove is provided inside the top plate, a water outlet hole is provided on the side wall of the top plate, a plurality of water outlet holes are spaced apart along the length direction of the top plate, and the water inlet pipe, the water guide groove and the water outlet hole are connected to each other.

[0020] By adopting the above technical solution, during grinding, water flows through the water inlet pipe and flows out from the water outlet on the top plate, and flows to the sample under the top plate to wet the surface of the sample, so that during the grinding process, the grinding surface can be continuously flushed with water to reduce dust.

[0021] Optionally, the water outlet holes are respectively opened on two side walls of the top plate facing the grinding head.

[0022] Optionally, a handle is provided on the outer side wall of the dust cover to facilitate the rotation of the dust cover.

[0023] By adopting the above technical solution, it is convenient to turn the handle.

[0024] In summary, the present application includes at least one of the following beneficial effects:

[0025] 1. By setting up dust cover, side baffles and accordion curtains, the dust generated during the grinding of the sample can be better intercepted in the dust cover to reduce dust pollution;

[0026] 2. By setting up a water inlet pipe and using the water outlet hole on the positioning plate, the polished surface of the test block can be continuously flushed with water, thereby reducing dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the related technology;

[0028] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the cross-sectional structure of the dust cover;

[0030] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 5 It is a schematic diagram of the exploded structure of the positioning part;

[0032] Figure 6 It is a schematic diagram of the structure of the fixing device.

[0033] Explanation of the accompanying drawings: 1. Frame; 2. Positioning platform; 3. Fixing device; 31. Bottom plate; 32. Vertical pole; 33. Screw; 34. Top plate; 341. Water outlet; 4. Grinding head; 5. Dust cover; 51. Make way groove; 52. Guide groove; 53. Limit groove; 54. Handle; 6. Side baffle; 7. Organ curtain; 71. Guide rod; 72. Limit block; 8. Positioning piece; 81. Positioning rod; 82. Positioning bolt; 83. Positioning ring; 9. Water inlet pipe. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a double-end surface grinding device for a specimen. Figure 1 The double-end grinding device includes a frame 1, a positioning platform 2 that can reciprocate on the frame 1, a fixing device 3 arranged on the positioning platform 2 for fixing the sample, and a grinding head 4 arranged on both sides of the frame 1. The grinding head 4 can move in a direction close to or away from the fixing device 3, so as to grind the sample into different sizes; when using the grinding device, first fix the sample on the positioning platform 2 through the fixing device 3, then adjust the position of the grinding head 4 as needed, then start the grinding head 4 to make the grinding head 4 rotate continuously, and then drive the positioning platform 2 to slide, so as to drive the sample to slide along with the positioning platform 2, and when passing through the grinding head 4, both sides of the sample can be ground.

[0036] Reference Figure 1 and Figure 2 In this embodiment, the double-end flattening device also includes a dust cover 5 rotatably arranged on the positioning platform 2. The dust cover 5 is a rectangular cover body with a hollow interior and an open lower end. The dust cover 5 has two side walls along the sliding direction of the positioning platform 2, and the lower end of one of the side walls can be rotatably connected to the upper surface of the positioning platform 2 by means of a hinge or the like. Thus, by applying force to the dust cover 5, the dust cover 5 can be rotated so that the dust cover 5 covers the outside of the sample and the fixing device 3 to prevent dust; or the dust cover 5 can be flipped open to facilitate fixing or removing the sample. In order to facilitate flipping the dust cover 5, a handle 54 can be fixed on the outer side wall of the dust cover 5 by means of bolts or the like. The position of the handle 54 is not limited, and it can preferably be arranged on a side wall away from the hinge of the dust cover 5.

[0037] Reference Figure 1 and Figure 2In this embodiment, the two side walls of the dust cover 5 facing the grinding head 4 are provided with clearance grooves 51, which extend along the sliding direction of the positioning platform 2, and at the same time extend toward the positioning platform 2 and penetrate to the lower surface, so that when the positioning platform 2 slides to any position, or when the dust cover 5 is flipped open, the grinding head 4 can pass through the clearance grooves 51, and the grinding head 4 can slide relatively in the clearance grooves 51. Furthermore, the upper surface of the positioning platform 2 can also be fixed with side baffles 6 by welding or the like, and the side baffles are respectively provided on both sides of the positioning device, and the side baffles 6 are correspondingly located below the clearance grooves 51, and the grinding head 4 can pass above the side baffles, thereby further increasing the dust shielding effect.

[0038] Reference Figure 2 and Figure 3 In the present embodiment, optionally, in order to further enhance the dustproof effect, an accordion curtain 7 can be provided on the dust cover 5, and the accordion curtain 7 is respectively provided on both sides of the grinding head 4. The accordion curtain 7 is also called a honeycomb curtain, and its cross section is formed by a plurality of hexagons connected to each other, and the material of the accordion curtain 7 can be the same as that of the organ pipe, such as PVC or rubber; one side of the accordion curtain 7 is fixed to the side wall of the dust cover 5 on one side of the clearance groove 51, and the other side of the accordion curtain 7 is movably provided, and the accordion curtain 7 can be pulled toward the grinding head 4, so that the accordion curtain 7 blocks part of the space of the clearance groove 51.

[0039] Reference Figure 2 and Figure 3 In this embodiment, a positioning piece 8 is provided on the frame 1. The positioning pieces 8 are respectively provided on both sides of the grinding head 4 and correspond one-to-one to the accordion curtain 7. The positioning pieces 8 can be connected to the side of the accordion curtain 7 close to the grinding head 4, so that when the positioning platform 2 slides, the end of the accordion curtain 7 close to the grinding head 4 is fixed by the positioning piece 8, and the end of the accordion curtain 7 fixed to the side wall of the dust cover 5 slides with the positioning platform 2, driving the accordion curtain 7 to shrink or expand, so that it can always cover the space between the grinding head 4 and the side wall of the dust cover 5.

[0040] Reference Figure 2 and Figure 3 In this embodiment, a guide rod 71 is fixed on the side wall of one end of the accordion curtain 7 close to the grinding head 4. The guide rod 71 can be a rectangular rod. The upper end of the guide rod 71 extends upward from the upper surface of the accordion curtain 7. The dust cover 5 is provided with a guide groove 52 for inserting the guide rod 71 on the upper end side wall of the give way groove 51. The guide groove 52 extends along the sliding direction of the positioning platform 2, so that the accordion curtain 7 can be telescoped more stably.

[0041] Furthermore, a limit block 72 is fixed on the side wall of the upper end of the guide rod 71. The limit block 72 can be located on the two side walls of the guide rod 71 facing the grinding head 4 or away from the grinding head 4. The shape of the limit block 72 is not limited, and it can be a rectangular block, a T-shaped block, or a dovetail block, etc. In this embodiment, the limit block 72 is a rectangular block, and a limit groove 53 is provided on the dust cover 5 for the limit block 72 to slide. The limit groove 53 is connected to the guide groove 52, so that when the guide rod 71 slides in the guide groove 52, the limit block 72 slides in the limit groove 53, which can prevent the guide rod 71 from slipping out of the guide groove 52, so that the accordion curtain 7 is installed more stably.

[0042] Reference Figure 2 and Figure 3 In this embodiment, the positioning member 8 includes a positioning rod 81 arranged on the frame 1, a positioning bolt 82 threadedly connected to the upper end of the positioning rod 81, and a positioning ring 83 arranged on the accordion curtain 7. Specifically, the lower end of the positioning rod 81 is fixed on the frame 1, and the positioning bolt 82 is threadedly passed through the upper end of the positioning rod 81 along the horizontal direction, and the axial direction of the positioning bolt 82 is parallel to the sliding direction of the grinding head 4. The positioning ring 83 is semi-annular, and the positioning ring 83 can be fixed on the side wall of the guide rod 71 away from the accordion curtain 7. When the positioning bolt 82 slides toward the fixing device 3, the positioning ring 83 is passed through, and the end of the accordion curtain 7 facing the grinding head 4 can be fixed on the positioning bolt 82; when the positioning bolt 82 slides in the direction away from the fixing, the positioning ring 83 and the accordion curtain 7 can be unlocked.

[0043] Reference Figure 2 and Figure 4 In this embodiment, the fixing device 3 includes a bottom plate 31 fixed on the positioning platform 2, a vertical rod 32 fixed to one end of the bottom plate 31, a top plate 34 slidably arranged on the vertical rod 32, and a screw rod 33 arranged at the other end of the bottom plate 31. The vertical rod 32 is provided with a slot for the top plate 34 to slide up and down. When the sample is placed on the bottom plate 31, the top plate 34 slides to abut against the upper surface of the sample. At this time, the vertical rod 32 is provided with a screw rod 33 that can press against the upper surface of the sample. At the same time, a nut is threadedly connected to the screw rod 33 to press against the other end of the sample, so that the sample can be fixed on the positioning block.

[0044] In order to further reduce the impact of dust on the equipment, the top plate 34 can also be connected to the water inlet pipe 9. Specifically, a water guide groove is provided inside the top plate 34, and the water guide groove extends along the length direction of the top plate 34. The water inlet pipe 9 can be connected to one end of the top plate 34 close to the vertical rod 32. The water inlet pipe 9 is connected to the water guide groove. Water outlet holes 341 are provided on both side walls facing the grinding head 4. Multiple water outlet holes 341 are provided at intervals along the length direction of the top plate 34. When the sample needs to be polished, water flows out along the water outlet holes 341 and falls along the sample to flush the polished surface. The dust combines with water, which can reduce dust splashing. In order to facilitate the connection of the water inlet pipe 9, an opening for the water inlet pipe 9 to pass can be provided on the side wall at one end where the dust cover 5 is connected to the positioning platform 2.

[0045] The implementation principle of a double-end surface grinding device for a sample in an embodiment of the present application is as follows: before grinding the sample, the sample is first fixed by a fixing device 3, and then water is introduced through a water inlet pipe 9 to wet the surface of the test block, and then the dust cover can be covered and the double-end grinding device is started for grinding.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A specimen double end surface grinding device, comprising a frame (1), a positioning platform (2) slidably arranged on the frame (1), a fixing device (3) arranged on the positioning platform (2), and grinding heads (4) arranged on both sides of the frame (1), characterized in that: The invention also comprises a dust cover (5) rotatably arranged on the positioning platform (2), the dust cover (5) being capable of being rotated to cover the outside of the fixing device (3), and two side walls of the dust cover (5) facing the grinding head (4) being provided with a clearance groove (51) for the grinding head (4) to pass through, the clearance groove (51) extending in the direction of the positioning platform (2) to the lower surface of the dust cover (5), and when the positioning platform (2) slides, the grinding head (4) can slide in the clearance groove (51).

2. A specimen double end surface grinding device according to claim 1, characterized in that: The positioning platform (2) is also provided with two side baffles (6), the two side baffles (6) are respectively located on both sides of the fixing device (3), and the grinding head (4) can pass over the side baffles.

3. A specimen double end surface grinding device according to claim 2, characterized in that: The dust cover (5) is provided with an accordion curtain (7) on both sides of each grinding head (4); the frame (1) is provided with a positioning piece (8) for connecting the accordion curtain (7) on both sides of the grinding head (4); the side of the accordion curtain (7) away from the grinding head (4) is connected to the dust cover (5); when the dust cover (5) is covered outside the fixing device (3), the end of the accordion curtain (7) facing the grinding head (4) can be connected to the positioning piece (8); when the dust cover (5) is rotated away from the outside of the fixing device (3), the accordion curtain (7) can be unlocked from the positioning piece (8).

4. A specimen double end surface grinding device according to claim 3, characterized in that: The positioning member (8) comprises a positioning rod (81) arranged on the frame (1), a positioning bolt (82) threaded on the upper end of the positioning rod (81), and a positioning ring (83) arranged on the accordion curtain (7), wherein the positioning bolt (82) can move toward the fixing device (3) and pass through the positioning ring (83).

5. A specimen double end surface grinding device according to claim 3, characterized in that: A guide rod (71) is provided at one end of the accordion curtain (7) close to the grinding head (4); a guide groove (52) for inserting the upper end of the guide rod (71) is provided on the upper side wall of the clearance groove (51) of the dust cover (5); and the guide groove (52) extends along the sliding direction of the positioning platform (2).

6. A specimen double end surface grinding device according to claim 5, characterized in that: A limit block (72) is provided on the side wall of the guide rod (71), and a limit groove (53) for the limit block (72) to slide is provided on the dust cover (5), and the limit groove (53) is communicated with the guide groove (52).

7. A specimen double end surface grinding device according to any one of claims 1 to 6, characterized in that: The fixing device (3) comprises a bottom plate (31), a vertical rod (32) arranged at one end of the bottom plate (31), a screw rod (33) arranged at the other end of the bottom plate (31), and a top plate (34) slidably arranged on the vertical rod (32) up and down, the top plate (34) being connected to a water inlet pipe (9), a water guide groove being provided inside the top plate (34), a water outlet hole (341) being provided on a side wall of the top plate (34), a plurality of the water outlet holes (341) being spaced apart along the length direction of the top plate (34), and the water inlet pipe (9), the water guide groove and the water outlet hole (341) being connected to each other.

8. A specimen double end surface grinding device according to claim 7, characterized in that: The water outlet holes (341) are respectively opened on two side walls of the top plate (34) facing the grinding head (4).

9. A specimen double end surface grinding device according to claim 1, characterized in that: A handle (54) for facilitating the rotation of the dust cover (5) is provided on the outer side wall of the dust cover (5).

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