Polishing equipment for graphite pipe

Abstract

The utility model discloses grinding equipment for a graphite pipe, relates to the technical field of grinding equipment, and solves the problems that in the prior art, grinding is not uniform easily due to mechanical grinding, and the precision is affected. Comprising a machine body, a first abrasive flow device and a second abrasive flow device are oppositely arranged on the upper portion and the lower portion of the machine body, the first abrasive flow device comprises a pressure sensor and a discharging pipeline, and the end of the discharging pipeline is fixedly connected to a movable frame; a discharging hole is formed in the position, corresponding to the discharging pipeline, of the bottom of the movable frame, and a first positioning mechanism is arranged at the lower end of the discharging hole. The second abrasive flow device comprises a material suction pipeline, a vacuum pump and an abrasive recovery tank; a second positioning mechanism is arranged at the top of the material suction pipeline; an operation panel is arranged on the machine body, and the operation panel is electrically connected with the pressure sensor and the vacuum pump. The graphite pipe grinding device has the advantages that grinding material flow can evenly act on the inner surface of a graphite pipe, uneven grinding is avoided, and the surface precision of the graphite pipe is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing equipment technical field, concretely speaking is a kind of polishing equipment for graphite tube. BACKGROUND

[0002] Graphite tube is the graphite product by high-purity graphite powder is pressed into by specific process, is divided into longitudinal and transverse heating graphite tube according to heating mode, is divided into ordinary, pyrolytic and platform graphite tube according to performance, has high temperature resistance, good chemical stability, high thermal conductivity, large surface area, good mechanical property and other characteristics.Graphite tube is widely used, is used for atomic absorption spectrometer analysis element content in analysis detection field;It is used for crystal growth furnace and manufacturing fixture etc. in semiconductor industry;It is used as heat exchanger etc. in metallurgy and chemical industry;It is used for manufacturing key components in aerospace field;It is used as electrode material in energy storage field;It is used for drug transport and biosensing etc. in biomedical field.

[0003] The flatness, roughness and finish degree of graphite tube inner surface and other indexes are directly related to the service life, performance and quality of final product of graphite tube, and the graphite tube polishing in the prior art is mainly mechanical polishing.Mechanical polishing mainly rubs and polishes graphite tube inner surface by rotating grinding wheel, and compared with manual polishing, mechanical polishing has certain improvement in efficiency, and can process larger size graphite tube, but mechanical polishing tool and graphite tube inner surface are rigid contact, difficult to uniformly act on each part in graphite tube, and uneven polishing easily occurs, so that surface roughness is inconsistent, and precision is affected.

[0004] Therefore, the utility model provides a kind of polishing equipment for graphite tube, to solve the generation of the above problems. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of polishing equipment for graphite tube, to solve the problem that mechanical polishing is difficult to uniformly act on each part in graphite tube, and uneven polishing easily occurs, and precision is affected in prior art.

[0006] The technical scheme adopted by the utility model to solve its technical problems is:

[0007] The polishing equipment for graphite pipe comprises a machine body, a first abrasive flow device and a second abrasive flow device which are oppositely arranged on the upper and lower portions of the machine body, the first abrasive flow device comprises a pressure sensor and a discharge pipeline, the pressure sensor is connected to the discharge pipeline, the end of the discharge pipeline is fixedly connected to a moving frame, the moving frame is longitudinally and slidingly connected to the inside of the machine body, the upper end of the machine body is connected with a driving cylinder, the driving shaft of the driving cylinder is connected with the moving frame, the bottom of the moving frame is provided with a discharging hole corresponding to the discharge pipeline, the lower end of the discharging hole is provided with a first positioning mechanism which is detachably connected with the moving frame, the second abrasive flow device comprises a suction pipeline, a vacuum pump and an abrasive recovery tank, the vacuum pump is connected to the suction pipeline, the top of the suction pipeline is provided with a second positioning mechanism which is detachably connected with the machine body, and an operation panel is arranged on the machine body and electrically connected with the pressure sensor and the vacuum pump.

[0008] By adopting the above technical scheme, the graphite pipe can be polished by the abrasive flow, the graphite pipe is uniformly acted on from all directions, the uneven polishing caused by uneven force is avoided, and the precision of the inner surface of the graphite pipe is ensured.

[0009] Further, the first positioning mechanism comprises a discharge plate and a first positioning plate, a first sealing sheet is connected between the discharge plate and the first positioning plate, a sealing strip is connected to the inner wall of the first positioning plate, and the discharge plate and the first positioning plate are detachably connected with the moving frame through bolts.

[0010] By adopting the above technical scheme, the first sealing sheet and the sealing strip can prevent the abrasive from leaking, the discharge plate and the first positioning plate are detachably connected with the moving frame through bolts, the discharge plate and the first positioning plate can be replaced according to the size of the graphite pipe, and the versatility of the whole equipment is improved.

[0011] Further, the second positioning mechanism comprises a suction plate and a second positioning plate, a second sealing sheet is connected between the suction plate and the second positioning plate, a plurality of elastic clamping pieces are arranged on the inner wall of the second positioning plate along the circumferential side, and the suction plate and the second positioning plate are detachably connected with the machine body through bolts.

[0012] By adopting the above technical scheme, the second sealing sheet ensures the sealing property of the suction process, the elastic clamping pieces on the circumferential side of the inner wall of the second positioning plate can stably position the outer wall of the graphite pipe, the stability of the graphite pipe during the polishing process is ensured, the elastic clamping pieces can adapt to graphite pipes with different outer diameters, the suction plate and the second positioning plate can be replaced according to the size of the graphite pipe, and the versatility of the equipment is improved.

[0013] Further, a circulating pipeline is connected between the abrasive recovery tank and the discharge pipeline, and a pressure pump is connected to the circulating pipeline and electrically connected to the operation panel.

[0014] By adopting the above technical scheme, the abrasive can circulate between the first abrasive flow device, the graphite pipe, the second abrasive flow device and the circulating pipeline, and continuously circulate to polish the graphite pipe.

[0015] Further, the abrasive recovery tank is connected with a filter screen corresponding to the circulating pipeline.

[0016] By adopting the above technical scheme, the filter screen can filter impurities during the circulation of the abrasive flow, prevent the impurities from entering the circulating pipeline again, and ensure stable polishing effect.

[0017] Further, the machine body is rotatably connected with a plurality of cabinet doors corresponding to the abrasive recovery tank, and a plurality of heat dissipation holes are uniformly formed in the cabinet doors.

[0018] By adopting the above technical scheme, the abrasive recovery tank can be conveniently maintained and cleaned through the cabinet doors, and the heat dissipation holes in the cabinet doors can dissipate heat to prevent the equipment from overheating and affecting operation.

[0019] Further, the machine body is connected with an alarm device and a pressure gauge, and the pressure sensor is electrically connected to the alarm device and the pressure gauge.

[0020] By adopting the above technical scheme, when the pressure exceeds or is lower than the set normal range, the pressure sensor transmits a signal to the alarm device, and the alarm device issues an alarm, so that the equipment can be adjusted in time according to the situation, and the normal polishing process is ensured.

[0021] In summary, compared with the prior art, the present application has the following advantages:

[0022] The present application polishes the inside of the graphite pipe by using abrasive flow, and the abrasive flow can flow in the graphite pipe under certain pressure and uniformly act on the inner surface of the graphite pipe in all directions, so that uneven polishing caused by uneven local stress is avoided, the roughness of the inner surface of the graphite pipe is consistent, the inner surface precision of the graphite pipe is improved, and the stability and consistency of the polishing quality are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a perspective view of the present application;

[0024] Figure 2 is a front view of the present application;

[0025] Figure 3 is a partial sectional view of the front view of the present application;

[0026] Figure 4 It is the right view of the utility model;

[0027] Figure 5 It is the right view of the utility model and is the partial section schematic view;

[0028] In the figure: 1, machine body;2, pressure sensor;3, alarm device;4, pressure gauge;5, discharge pipeline;6, moving frame;7, drive cylinder;8, discharge plate;9, first positioning plate;10, first sealing piece;11, sealing strip;12, suction pipeline;13, vacuum pump;14, abrasive recycling tank;15, suction plate;16, second positioning plate;17, second sealing piece;18, elastic clamping piece;19, operation panel;20, circulating pipeline;21, pressure pump;22, filter screen;23, box door;24, heat dissipation hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in combination with the drawings in the utility model embodiment. Obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0030] In the present application, the orientation or position relationship indicated by the terms "upper", "inner", "outer", "middle" and the like is based on the orientation or position relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation.

[0031] As Figures 1-5 shown, a kind of polishing equipment for graphite tube, including machine body 1, first abrasive flow device and second abrasive flow device are oppositely arranged in machine body 1, first abrasive flow device includes pressure sensor 2 and discharge pipeline 5, pressure sensor 2 is connected on discharge pipeline 5, the end of discharge pipeline 5 is fixedly connected on moving frame 6, moving frame 6 is longitudinally slidingly connected in machine body 1, the upper end of machine body 1 is connected with drive cylinder 7, the driving shaft of drive cylinder 7 is connected with moving frame 6;First positioning mechanism includes discharge plate 8 and first positioning plate 9, first sealing piece 10 is connected between discharge plate 8 and first positioning plate 9, the inner wall circumferential side of first positioning plate 9 is connected with sealing strip 11, discharge plate 8 and first positioning plate 9 are detachably connected with moving frame 6 by bolt.Machine body 1 is connected with alarm device 3 and pressure gauge 4, pressure sensor 2 is electrically connected with alarm device 3 and pressure gauge 4.

[0032] The bottom of the moving frame 6 is provided with a discharging hole corresponding to the discharging pipe 5, and the lower end of the discharging hole is provided with a first positioning mechanism which is detachably connected with the moving frame 6; the second abrasive flow device comprises a suction pipe 12, a vacuum pump 13 and an abrasive recovery tank 14, the vacuum pump 13 is connected with the suction pipe 12, and the top of the suction pipe 12 is provided with a second positioning mechanism which is detachably connected with the machine body 1; the machine body 1 is provided with an operation panel 19 which is electrically connected with the pressure sensor 2 and the vacuum pump 13; the second positioning mechanism comprises a suction plate 15 and a second positioning plate 16, and a second sealing sheet 17 is connected between the suction plate 15 and the second positioning plate 16; the inner wall of the second positioning plate 16 is provided with a plurality of elastic clamping pieces 18 along the circumferential side, and the suction plate 15 and the second positioning plate 16 are detachably connected with the machine body 1 through bolts.

[0033] The abrasive recovery tank 14 is connected with the discharging pipe 5 through a circulating pipe 20, the circulating pipe 20 is connected with a pressure pump 21, the pressure pump 21 is electrically connected with the operation panel 19; the abrasive recovery tank 14 is connected with a filter screen 22 corresponding to the circulating pipe 20; the machine body 1 is rotatably connected with a plurality of tank doors 23 corresponding to the abrasive recovery tank 14, and a plurality of heat dissipation holes 24 are uniformly formed in the tank doors 23.

[0034] The working process of the utility model is as follows:

[0035] Firstly, the graphite pipe to be polished is placed between the first positioning mechanism and the second positioning mechanism, the outer side wall of the graphite pipe is stably positioned through the sealing strip 11 on the inner wall circumferential side of the first positioning plate 9 and the elastic clamping pieces 18 on the inner wall circumferential side of the second positioning plate 16, and the stability of the graphite pipe in the polishing process is guaranteed, wherein the elastic clamping pieces 18 can adapt to graphite pipes of different outer diameter sizes, and the versatility of the equipment is enhanced.

[0036] Further, the operation panel 19 transmits instructions to the driving cylinder 7, the driving shaft of the driving cylinder 7 pushes the moving frame 6 to longitudinally slide downwards, then the first positioning mechanism closely fits the upper end of the graphite pipe, then the abrasive is conveyed from the abrasive storage tank to the discharging pipe 5, the abrasive enters the graphite pipe through the first positioning mechanism from the discharging pipe 5 and the discharging hole in the bottom of the moving frame 6, the first positioning mechanism is connected with the discharging plate 8 and the first positioning plate 9, the inner wall of the first positioning plate 9 is provided with a sealing strip 11, which can prevent the abrasive from leaking, then the vacuum pump 13 is started, a negative pressure is formed in the suction pipe 12, the abrasive in the graphite pipe is sucked into the suction pipe 12 through the second positioning mechanism, and then enters the abrasive recovery tank 14, the second sealing sheet 17 between the suction plate 15 and the second positioning plate 16 in the second positioning mechanism guarantees the sealing property of the suction process, and in the process of flowing in the graphite pipe, the grinding particles in the abrasive fully contact and rub with the inner wall of the graphite pipe, so as to polish the inner wall of the graphite pipe.

[0037] Further, the abrasive falls into the abrasive recovery tank 14, the pressure pump 21 is started, and the filtered abrasive in the abrasive recovery tank 14 is transported to the discharge pipeline 5 through the circulating pipeline 20, the pressure sensor 2 monitors the pressure in the discharge pipeline 5 in real time, and transmits the pressure data to the pressure gauge 4 for display, and also transmits to the operation panel 19, when the pressure exceeds or is lower than the set normal range, the pressure sensor 2 will transmit the signal to the alarm device 3, the alarm device 3 will alarm, and then the equipment can be adjusted in time according to the situation, to ensure the normal progress of the polishing process. Further, the abrasive circulates between the first abrasive flow device, the graphite pipe, the second abrasive flow device and the circulating pipeline 20, continuously polishing the graphite pipe until the preset polishing time is reached.

Claims

1. A grinding apparatus for graphite tubes comprising a machine body (1), characterised in that, The upper and lower opposite of the machine body (1) is provided with first abrasive flow device and second abrasive flow device, the first abrasive flow device includes pressure sensor (2) and discharge pipeline (5), the pressure sensor (2) is connected on the discharge pipeline (5), the end of the discharge pipeline (5) is fixedly connected on the moving frame (6), the moving frame (6) is longitudinally slidingly connected in the machine body (1), the upper end of the machine body (1) is connected with drive cylinder (7), the drive shaft of the drive cylinder (7) is connected with the moving frame (6);The bottom of the moving frame (6) is provided with a discharge hole corresponding to the discharge pipeline (5), the lower end of the discharge hole is provided with a first positioning mechanism, and the first positioning mechanism is detachably connected with the moving frame (6); The second abrasive flow device includes suction pipeline (12), vacuum pump (13) and abrasive recovery tank (14), the vacuum pump (13) is connected on the suction pipeline (12), the top of the suction pipeline (12) is provided with a second positioning mechanism, and the second positioning mechanism is detachably connected with the machine body (1); The machine body (1) is provided with an operation panel (19), and the operation panel (19) is electrically connected with the pressure sensor (2) and the vacuum pump (13).

2. The apparatus for polishing a graphite tube according to claim 1, wherein The first positioning mechanism includes discharge plate (8) and first positioning plate (9), the first sealing sheet (10) is connected between the discharge plate (8) and the first positioning plate (9), the sealing strip (11) is connected on the inner wall of the first positioning plate (9), and the discharge plate (8) and the first positioning plate (9) are detachably connected with the moving frame (6) through bolts.

3. An apparatus for polishing a graphite tube according to claim 2, wherein The second positioning mechanism includes suction plate (15) and second positioning plate (16), the second sealing sheet (17) is connected between the suction plate (15) and the second positioning plate (16), a plurality of elastic clamping pieces (18) are arranged on the inner wall of the second positioning plate (16) along the periphery, and the suction plate (15) and the second positioning plate (16) are detachably connected with the machine body (1) through bolts.

4. The apparatus for polishing a graphite tube according to claim 1, wherein The abrasive recovery tank (14) is connected with the discharge pipeline (5) through a circulating pipeline (20), a pressure pump (21) is connected on the circulating pipeline (20), and the pressure pump (21) is electrically connected with the operation panel (19).

5. An apparatus for polishing a graphite tube as defined in claim 4, wherein The abrasive recovery tank (14) is connected with the circulating pipeline (20) through a filter screen (22).

6. An apparatus for polishing a graphite tube as defined in claim 5, wherein The machine body (1) is rotatably connected with a plurality of box doors (23) corresponding to the abrasive recovery tank (14), and a plurality of heat dissipation holes (24) are uniformly formed in the box doors (23).

7. The apparatus for polishing a graphite tube according to claim 1, wherein The machine body (1) is connected with an alarm device (3) and a pressure gauge (4), and the pressure sensor (2) is electrically connected with the alarm device (3) and the pressure gauge (4).

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