Graphite crucible inner hole cutting mechanism

Abstract

The utility model belongs to the field of graphite crucible machining equipment, and particularly relates to a graphite crucible inner hole cutting mechanism which comprises a clamping mechanism and a boring mechanism, the boring mechanism comprises a boring seat and a boring cutter shaft, a crucible is clamped by means of the clamping mechanism, and the machining end of the boring cutter shaft extends into the crucible. The device further comprises a machining chamber located between the clamping mechanism and the boring seat, the to-be-machined end of the crucible and the machining end of the boring cutter shaft are both located in the machining chamber, the two ends of the machining chamber are provided with a first receding hole and a second receding hole which are matched with the crucible and the boring cutter shaft correspondingly, and the machining chamber is further provided with a shielding curtain located at the second receding hole. The machining chamber is connected with the dust remover through the negative pressure machine, dust generated in the machining process can be prevented from flying into the working environment, and the working environment is kept clean and tidy.

Description

Technical Field

[0001] The utility model belongs to the field of graphite crucible processing equipment, and in particular relates to a graphite crucible inner hole cutting mechanism. Background Art

[0002] Graphite crucible has good thermal conductivity and high temperature resistance, and is often used in the processing of negative electrode powder for lithium batteries. After the graphite crucible is made, it is also necessary to bore the inner cavity of the graphite crucible so that the aperture of the graphite crucible meets the standard and the surface roughness is reduced to prevent the negative electrode powder from hiding on the rough cavity wall of the graphite crucible when it is used for negative electrode powder processing. The existing boring method is to connect the graphite crucible with the clamping part of the boring machine, and the boring cutter is inserted into the graphite crucible for boring and trimming. The debris generated by cutting during the processing, especially dust, is very easy to fly into the air and pollute the working environment. How to prevent the dust in the boring and cutting process from polluting the working environment and keep the environment clean is a problem that technicians in this field need to solve. Utility Model Content

[0003] In order to solve the above problems existing in the prior art, the utility model provides a graphite crucible inner hole cutting mechanism, which can prevent the dust generated during the processing from scattering into the working environment and keep the working environment clean.

[0004] The specific technical solution adopted by the utility model is:

[0005] A graphite crucible inner hole cutting mechanism comprises a clamping mechanism and a boring mechanism, wherein the boring mechanism comprises a boring seat and a boring cutter shaft, the crucible is clamped by means of the clamping mechanism, and the processing end of the boring cutter shaft extends into the crucible. The key point is that it also comprises a processing chamber located between the clamping mechanism and the boring seat, the end of the crucible to be processed and the processing end of the boring cutter shaft are both located in the processing chamber, a first avoidance hole and a second avoidance hole matching the crucible and the boring cutter shaft are respectively provided at both ends of the processing chamber, a shielding curtain located at the second avoidance hole is also provided on the processing chamber, and the processing chamber is connected to a dust collector by means of a negative pressure machine.

[0006] The boring seat is provided with a first X-axis guide rail and a first Y-axis guide rail, the first Y-axis guide rail is parallel to the axis of the crucible, the boring tool shaft has the freedom of translation with the help of the first X-axis guide rail and the first Y-axis guide rail, the crucible has the freedom of rotation along its own axis with the help of the clamping mechanism, the second avoidance hole is a long hole, and the long direction of the second avoidance hole is arranged parallel to the first X-axis guide rail.

[0007] The shielding curtain is movably connected to the processing room by means of a driving component, and avoids the boring cutter shaft moving along the X-axis track.

[0008] The shielding curtain is a shielding plate with a third avoidance hole on it, the boring tool shaft is located in the third avoidance hole, the driving assembly includes a driving shaft, a slider and a first hinge rod and a second hinge rod which are sequentially arranged between the driving shaft and the slider, the slider is connected to the shielding plate, and the processing chamber is provided with a second X-axis track matching the slider, and the axial direction of the driving shaft is arranged parallel to the axial direction of the crucible.

[0009] The clamping mechanism includes a machine base and a three-jaw chuck connected to the machine base. A second Y-axis guide rail is arranged under the machine base. The machine base has the freedom to move toward the boring tool shaft with the help of the second Y-axis guide rail. The crucible is connected to the machine base with the help of the three-jaw chuck and has the freedom to rotate on the machine base.

[0010] The beneficial effects of the utility model are:

[0011] The utility model adopts a method of arranging a processing chamber between a clamping mechanism and a boring seat, and by means of a first avoidance hole and a second avoidance hole, the end of the crucible to be processed and the processing end of the boring cutter shaft are both located in the processing chamber, and powder generated in the boring and cutting process is scattered into the processing chamber and blocked by the processing chamber; the second avoidance hole is located in front of the end of the crucible to be processed, and a shielding curtain is arranged at the second avoidance hole to shield the part other than the position of the boring cutter shaft in the second avoidance hole, so as to ensure that the boring cutter shaft can rotate normally, reduce the exchange channel between the processing chamber and the outside world, and reduce the possibility of dust overflow and residue splashing; the air in the processing chamber is pumped into a dust collector by a negative pressure machine for dust removal, so as to prevent powder from being scattered into the external working environment, reduce pollution, and keep the working environment clean and tidy at all times. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 for Figure 1 A cross-sectional view along the AA axis after the clamping mechanism is omitted;

[0014] Figure 3 It is a structural schematic diagram of the processing room;

[0015] In the accompanying drawings, 1. boring seat, 2. boring tool shaft, 3. crucible, 4. processing chamber, 5. first avoidance hole, 6. second avoidance hole, 7. shielding curtain, 8. dust collector, 9. negative pressure machine, 10. first X-axis guide rail, 11. first Y-axis guide rail, 12. third avoidance hole, 13. drive shaft, 14. slider, 15. first hinged rod, 16. machine base, 17. three-jaw chuck, 18. second Y-axis track, 19. second hinged rod, 20. second X-axis track. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0017] Specific implementation examples Figure 1-3 As shown, a graphite crucible inner hole cutting mechanism includes a clamping mechanism and a boring mechanism, the boring mechanism includes a boring seat 1 and a boring cutter shaft 2, the crucible 3 is clamped by the clamping mechanism, and the processing end of the boring cutter shaft 2 extends into the crucible 3. The key is that it also includes a processing chamber 4 located between the clamping mechanism and the boring seat 1, and the end of the crucible 3 to be processed and the processing end of the boring cutter shaft 2 are both located in the processing chamber 4; Figure 3 As shown, the two ends of the processing chamber 4 are respectively provided with a first avoidance hole 5 and a second avoidance hole 6 which are matched with the crucible 3 and the boring cutter shaft 2; the processing chamber 4 is also provided with a shielding curtain 7 located at the second avoidance hole 6, and the processing chamber 4 is connected to the dust collector 8 by means of a negative pressure machine 9, and the processing chamber 4 and the negative pressure machine 9 are connected by means of a pipeline, and the negative pressure machine 9 and the dust collector 8 are connected by means of a pipeline; the end to be processed of the crucible 3 is arranged in the processing chamber 4, and the processing end of the boring cutter shaft 2 is located in the processing chamber 4 and extends into the crucible 3 for boring and cutting processing; the processing chamber 4 blocks the dust generated in the processing process, and at the same time, the negative pressure machine 9 draws the air containing dust in the processing chamber 4 into the dust collector 8 for dust removal, and then discharges the clean air, effectively preventing the dust from flying outside the processing chamber 4 to pollute the working environment; the setting of the processing chamber 4 has a gathering effect on the dust generated in the processing process, so that the negative pressure machine 9 can fully and effectively extract the dust.

[0018] The boring seat 1 is provided with a first X-axis guide rail 10 and a first Y-axis guide rail 11, and the first Y-axis guide rail 11 is parallel to the axis of the crucible 3. The boring cutter shaft 2 has the freedom of translation with the help of the first X-axis guide rail 10 and the first Y-axis guide rail 11, and the crucible 3 has the freedom of rotation along its own axis with the help of the clamping mechanism. The second avoidance hole 6 is a long hole, and the long direction of the second avoidance hole 6 is arranged parallel to the first X-axis guide rail 10. The boring seat 1 drives the boring cutter shaft 2 to approach and move away from the crucible 3 along the first X-axis guide rail 10, and move along the radial direction of the crucible 3 along the first Y-axis guide rail 11, so that the end face of the crucible 3 can be flattened, flattened, and the inner hole of the crucible 3 can be bored; the processing end of the boring cutter shaft 2 extends into the crucible 3 and rotates, and the crucible 3 rotates along its own axis with the help of the clamping mechanism, and the boring cutting of the inner hole side wall of the crucible 3 can be quickly completed.

[0019] The shielding curtain 7 is movably connected to the processing chamber 4 by means of a driving assembly, and avoids the boring cutter shaft 2 moving along the first X-axis track 10. When the boring cutter shaft 2 moves along the first X-axis track 10 during processing, the shielding curtain 7 moves on the processing chamber 4 by means of a driving assembly to shield the second avoidance hole 6 around the boring cutter shaft 2, and minimizes the exposed second avoidance hole 6, so that the processing chamber 4 and the external working environment maintain a small air exchange channel, further preventing dust from flying out of the processing chamber 4. On the other hand, when processing crucibles 3 of different sizes, the shielding curtain 7 can adjust its position synchronously with the boring cutter shaft 2, thereby meeting the requirement of keeping the environment clean when processing crucibles of different sizes.

[0020] like Figure 2 As shown, the shielding curtain 7 is a shielding plate with a third avoidance hole 12 thereon, the driving assembly includes a driving shaft 13, a slider 14 and a first hinged rod 15 and a second hinged rod 19 which are sequentially arranged between the driving shaft 13 and the slider 14, the slider 14 is connected to the shielding plate, the processing chamber 4 is provided with a second X-axis track 20 matching the slider 14, and the axial direction of the driving shaft 13 is arranged parallel to the axial direction of the crucible 3. The boring cutter shaft 2 is located in the third avoidance hole 12. When the boring cutter shaft 2 moves along the X-axis track 10, the drive shaft 13 rotates, and the slider 14 connected to the shielding plate is driven to move along the second X-axis track 20 by means of the first hinge rod 16 and the second hinge rod 19, so that the boring cutter shaft 2 is always located in the third avoidance hole 12, and the shielding plate always shields other positions except the position of the boring cutter shaft 2 in the second avoidance hole 6, and prevents the boring cutter shaft 2 from colliding with the shielding plate during operation, causing damage to the shielding plate or scratches on the boring cutter shaft 2, thereby extending the service life of the boring cutter shaft 2 and the shielding plate. The drive shaft 13 is controlled by a motor.

[0021] The clamping mechanism includes a machine base 16 and a three-jaw chuck 17 connected to the machine base 16. The machine base 16, the boring cutter shaft 2 and the motor are all controlled by a controller. A second Y-axis guide rail 18 is arranged below the machine base 16. The machine base 16 has the freedom to move toward the boring cutter shaft 2 with the help of the second Y-axis guide rail 18. The crucible 3 is connected to the machine base 16 with the help of the three-jaw chuck 17 and has the freedom to rotate on the machine base 16. The three-jaw chuck 17 quickly clamps the crucible 3 in the center. The machine base 16 drives the three-jaw chuck 17 to drive the crucible 3 to approach the boring cutter shaft 2 along the second Y-axis track 18 until the end of the crucible 3 to be processed enters the processing chamber 4. The positioning is accurate and reliable. During the processing, the machine base 16 drives the three-jaw chuck 17 to drive the crucible 3 to rotate, so that the boring cutter shaft 2 processes the inner wall of the crucible 3 in a full circle. The processing speed is fast and the processing accuracy is high.

Claims

1. A graphite crucible inner hole cutting mechanism, comprising a clamping mechanism and a boring mechanism, wherein the boring mechanism comprises a boring seat (1) and a boring cutter shaft (2), the crucible (3) is clamped by means of the clamping mechanism, and the processing end of the boring cutter shaft (2) extends into the crucible (3), characterized in that: The invention also comprises a processing chamber (4) located between the clamping mechanism and the boring seat (1); the end to be processed of the crucible (3) and the processing end of the boring tool shaft (2) are both located in the processing chamber (4); the two ends of the processing chamber (4) are respectively provided with a first avoidance hole (5) and a second avoidance hole (6) matched with the crucible (3) and the boring tool shaft (2); the processing chamber (4) is also provided with a shielding curtain (7) located at the second avoidance hole (6); and the processing chamber (4) is connected to a dust collector (8) by means of a negative pressure machine (9).

2. The graphite crucible inner hole cutting mechanism according to claim 1, characterized in that: The boring seat (1) is provided with a first X-axis guide rail (10) and a first Y-axis guide rail (11); the first Y-axis guide rail (11) is parallel to the axis of the crucible (3); the boring tool shaft (2) has the freedom of translation with the help of the first X-axis guide rail (10) and the first Y-axis guide rail (11); the crucible (3) has the freedom of rotation along its own axis with the help of a clamping mechanism; the second avoidance hole (6) is a long hole; the long direction of the second avoidance hole (6) is arranged parallel to the first X-axis guide rail (10).

3. A graphite crucible inner hole cutting mechanism according to claim 2, characterized in that: The shielding curtain (7) is movably connected to the processing chamber (4) by means of a driving component, and avoids the boring tool shaft (2) moving along the first X-axis guide rail (10).

4. A graphite crucible inner hole cutting mechanism according to claim 3, characterized in that: The shielding curtain (7) is a shielding plate with a third avoidance hole (12) thereon, the boring tool shaft (2) is located in the third avoidance hole (12), the driving assembly comprises a driving shaft (13), a slider (14) and a first hinge rod (15) and a second hinge rod (19) which are sequentially arranged between the driving shaft (13) and the slider (14), the slider (14) is connected to the shielding plate, the processing chamber (4) is provided with a second X-axis track (20) which is matched with the slider (14), and the axial direction of the driving shaft (13) is arranged parallel to the axial direction of the crucible (3).

5. The graphite crucible inner hole cutting mechanism according to claim 1, characterized in that: The clamping mechanism comprises a machine base (16) and a three-jaw chuck (17) connected to the machine base (16); a second Y-axis guide rail (18) is arranged below the machine base (16); the machine base (16) has the freedom to move toward the boring tool shaft (2) by means of the second Y-axis guide rail (18); the crucible (3) is connected to the machine base (16) by means of the three-jaw chuck (17) and has the freedom to rotate on the machine base (16).

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