Inverted lathe for ceramic tube

Abstract

The utility model discloses an inverted lathe for a ceramic tube, and relates to the technical field of machining, the inverted lathe comprises a multi-axis driving device, a workpiece shaft device, a reducing device and a cutter device, the multi-axis driving device has X-axis and Z-axis moving strokes, the X-axis is in the horizontal direction, and the Z-axis is in the vertical direction; the workpiece shaft device is connected to the multi-axis driving device, the multi-axis driving device is used for driving the workpiece shaft device to move along the X axis and the Z axis, and the workpiece shaft device has a driving stroke rotating around the Z axis; the variable-diameter device is connected to the workpiece shaft device, the axial direction of the variable-diameter device is parallel to the Z axis, and the variable-diameter device can adjust the radial size of the variable-diameter device; and the cutter device is arranged on the moving path of the reducing device. According to the inverted lathe for the ceramic tube, the stress of the ceramic tube during machining is uniform, and the machining of the outer circular surface of the ceramic tube can be completed at a time.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, and particularly relates to an inverted lathe for ceramic tubes. Background Art

[0002] When manufacturing ceramic tubes, the die-cast blanks need to be further finely processed to meet the usage requirements. For example, turning the outer circular surface of the ceramic tube to make its diameter and roundness meet the design standards. Generally, a general-purpose lathe can be used to complete the cutting of the outer circular surface of the ceramic tube. However, there will be interference between the clamping part of the ceramic tube by the chuck of the lathe and the turning tool. Therefore, if the entire outer circular surface of the ceramic tube needs to be processed, at least one clamping commutation is required, which increases the processing operation process and affects the efficiency.

[0003] When manufacturing a ceramic tube with a central through hole, if the size of the ceramic tube is long, on a general-purpose lathe, the unclamped side of the ceramic tube will droop due to gravity, affecting the machining accuracy. Because the ceramic tube has a through hole in the center, it is also difficult to add a center drill for support on the unclamped side. Further, when the turning tool processes the unclamped side of the ceramic tube, the stress exerted by the turning tool on the ceramic tube will also cause the ceramic tube to deflect. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides an inverted lathe for ceramic tubes, in which the ceramic tube is uniformly stressed during processing and the outer circular surface of the ceramic tube can be processed in one go.

[0005] The inverted lathe for ceramic tubes according to an embodiment of the utility model includes: a multi-axis drive device having a moving stroke in the X-axis and Z-axis directions, the X-axis being in the horizontal direction and the Z-axis being in the vertical direction;

[0006] A workpiece shaft device connected to the multi-axis drive device, the multi-axis drive device being used to drive the workpiece shaft device to move along the X-axis and Z-axis, and the workpiece shaft device having a driving stroke of rotating around the Z-axis;

[0007] A diameter-changing device connected to the workpiece shaft device, the axial direction of the diameter-changing device being parallel to the Z-axis, and the diameter-changing device being capable of adjusting its own radial dimension;

[0008] A tool device arranged on the moving path of the diameter-changing device.

[0009] The inverted lathe for ceramic tubes according to the embodiments of the present utility model has at least the following beneficial effects: The diameter-changing device is used to fix the ceramic tube, and the diameter-changing device extends into the interior of the ceramic tube, and the support position of the diameter-changing device for the ceramic tube can be controlled to be in the middle of the ceramic tube. When the ceramic tube rotates around the Z-axis, that is, when the ceramic tube is placed vertically and rotates, the gravity of the ceramic tube is parallel to the rotation axis of the ceramic tube, and the ceramic tube will not deflect due to its own gravity, and the machining accuracy can be improved. Moreover, the diameter-changing device supports the ceramic tube inside the ceramic tube, and the outer cylindrical surface of the ceramic tube can be machined in one go without the need for clamping and commutation adjustment, and the machining efficiency is high.

[0010] According to some embodiments of the present utility model, the diameter-changing device includes a shaft rod and an airbag, the airbag is sleeved on the shaft rod, a gas guiding channel is arranged inside the shaft rod, and the airbag is communicated with the gas guiding channel.

[0011] According to some embodiments of the present utility model, at least two of the airbags are sleeved on the shaft rod, and the multiple airbags are spaced apart along the axial direction of the shaft rod.

[0012] According to some embodiments of the present utility model, the wall surface of the airbag is an elastic wall surface.

[0013] According to some embodiments of the present utility model, there is an aggregate chute, the aggregate chute is located below the moving area of the diameter-changing device, and the cutting tool device is located in the aggregate chute.

[0014] According to some embodiments of the present utility model, a discharge port is arranged at the bottom of the aggregate chute, and a material conveying device is arranged below the discharge port.

[0015] According to some embodiments of the present utility model, a conveyor belt assembly is arranged below the discharge port, the conveyor belt assembly serves as the material conveying device, the conveyor belt assembly has a horizontally arranged belt, a plurality of partition plates are arranged on the surface of the belt, the plurality of partition plates are spaced apart along the conveying direction of the belt, and the plate surface of the partition plate is perpendicular to the conveying direction of the belt.

[0016] According to some embodiments of the present utility model, there is also a feeding device, the feeding device is arranged on the moving path of the diameter-changing device, and the feeding device has a first carrying position and a second carrying position.

[0017] According to some embodiments of the present utility model, the feeding device includes a turntable and a driving mechanism, the driving mechanism is in transmission connection with the turntable to drive the turntable to rotate in the horizontal plane, the turntable is provided with the first carrying position and the second carrying position, and the connection line of the first carrying position and the second carrying position passes through the rotation center of the turntable.

[0018] According to some embodiments of the present utility model, a gantry is provided, the gantry is disposed above the feeding device, the gantry is provided with a driving rail assembly, the driving rail assembly is connected with a clamping claw, and the driving rail assembly can drive the clamping claw to move in the horizontal direction and the vertical direction.

[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0021] Figure 1 is a schematic structural view of an inverted lathe for ceramic tubes according to an embodiment of the present utility model;

[0022] Figure 2 is a schematic structural view of a diameter-changing device according to an embodiment of the present utility model;

[0023] Figure 3 is a schematic structural view of an aggregate chute according to an embodiment of the present utility model;

[0024] Figure 4 is a schematic structural view of a material conveying device according to an embodiment of the present utility model;

[0025] Figure 5 is a schematic structural view of a gantry according to an embodiment of the present utility model;

[0026] Figure 6 is a schematic structural view of a feeding device according to an embodiment of the present utility model.

[0027] Reference Numerals in the Drawings:

[0028] Multi-axis driving device 100, workpiece shaft device 200, diameter-changing device 300, shaft rod 310, airbag 320, tool device 400, aggregate chute 500, material conveying device 600, conveyor belt assembly 610, belt 611, partition plate 612, feeding device 700, first bearing position 701, second bearing position 702, turntable 710, driving mechanism 720, gantry 800, driving rail assembly 810, clamping claw 820. Detailed Embodiments

[0029] The following details the embodiments of the present utility model. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0030] In the description of the present utility model, it should be understood that for the orientation description, such as the upper and lower directions, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0031] In the description of the present utility model, "a plurality" refers to more than two. If there is a description of the first and the second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0032] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0033] The ceramic tube has the characteristics of corrosion resistance and wear resistance, and is commonly used for the transportation of positive and negative electrode materials in the lithium battery industry, or as a chemical pipeline transportation, powder material transportation, etc.

[0034] After die-casting, the outer circular surface of the ceramic tube needs to be finely processed before it can be used. Generally, a general-purpose lathe can complete the cutting of the outer circular surface of the ceramic tube. However, there will be interference between the clamping part of the ceramic tube by the chuck of the lathe and the turning tool. Therefore, if the entire outer circular surface of the ceramic tube needs to be processed, at least one clamping commutation is required, which increases the processing operation process and affects the efficiency.

[0035] If the size of the ceramic tube is relatively long, on a general-purpose lathe, the unclamped side of the ceramic tube will sag due to gravity, affecting the processing accuracy. Because there is a through hole in the center of the ceramic tube, it is also difficult to add a center drill for support on the unclamped side. Further, when the turning tool processes the unclamped side of the ceramic tube, the stress exerted by the turning tool on the ceramic tube will also cause the ceramic tube to deflect, resulting in a decrease in processing accuracy.

[0036] Refer to Figure 1 As shown, an inverted lathe for a ceramic tube according to an embodiment of the present utility model includes a multi-axis drive device 100, a workpiece shaft device 200, a variable diameter device 300, and a tool device 400.

[0037] The multi-axis drive device 100 has a moving stroke in the X-axis and Z-axis directions. The X-axis is along the horizontal direction, and the Z-axis is along the vertical direction. The multi-axis drive device 100 is used to provide a processing stroke. The Z-axis is the rotation axis of the ceramic tube. Therefore, the moving stroke on the Z-axis can control the relative position of the tool device 400 and the ceramic tube in the axial direction to achieve the axial movement of the turning point.

[0038] Specifically, the tool device 400 first contacts the lower end of the ceramic tube. When the multi-axis driving device 100 moves along the Z-axis, correspondingly, the tool device 400 moves along the Z-axis towards the upper end of the ceramic tube, that is, the turning point moves from the lower end of the ceramic tube to the upper end, and the outer surface machining of the ceramic tube can be completed. The multi-axis driving device 100 moves along the X-axis, that is, drives the ceramic tube to move horizontally to approach the tool device 400. Further, the movement of the ceramic tube along the X-axis can control the feed amount of the tool device 400 for the ceramic tube.

[0039] It should be understood that when the tool device 400 contacts the ceramic tube, at this time, when the multi-axis driving device 100 moves along the Z-axis, the ceramic tube always maintains a state of rotating around the Z-axis. The Z-axis is along the vertical direction, so that the gravity of the ceramic tube can be kept parallel to the rotation axis of the ceramic tube. When the ceramic tube is rotationally processed, the ceramic tube and the rotation axis will not deflect due to the influence of gravity, and the machining accuracy is guaranteed.

[0040] It should be understood that the multi-axis driving device 100 can be composed of a first rail body and a second rail body. Among them, the first rail body is horizontally arranged to provide guidance for the X-axis, and the second rail body is vertically arranged to provide guidance for the Z-axis. The driving mechanism can be driven by a motor-driven lead screw assembly for transmission, and the lead screw transmission has high precision. Preferably, the first rail body is fixed, and the second rail body is slidably connected to the first rail body, that is, the second rail body can move along the first rail body in the X-axis direction.

[0041] The workpiece shaft device 200 is connected to the multi-axis driving device 100. The multi-axis driving device 100 is used to drive the workpiece shaft device 200 to move along the X-axis and the Z-axis. The workpiece shaft device 200 has a driving stroke of rotating around the Z-axis. The workpiece shaft device 200 is mainly used to drive the ceramic tube to rotate. The driving stroke of the workpiece shaft device 200 is a rotation stroke, and the rotation axis is parallel to the Z-axis, and it can drive the ceramic tube to rotate around the Z-axis. The workpiece shaft device 200 can be the same as a general-purpose lathe and use a motor to achieve the rotation driving function.

[0042] The diameter-changing device 300 is connected to the workpiece shaft device 200. The axial direction of the diameter-changing device 300 is parallel to the Z-axis, and the diameter-changing device 300 can adjust its own radial dimension. The diameter-changing device 300 is used to support and fix the ceramic tube. Specifically, the diameter-changing device 300 extends into the interior of the ceramic tube, and by changing the diameter of the diameter-changing device 300, contact and support for the ceramic tube can be realized from the inside of the ceramic tube.

[0043] Specifically, the diameter of the diameter-changing device 300 is smaller than the internal dimension of the ceramic tube, that is, smaller than the inner diameter of the ceramic tube. After the diameter-changing device 300 is inserted into the interior of the ceramic tube, the diameter of the diameter-changing device 300 is controlled to increase until the diameter-changing device 300 contacts the inner wall of the ceramic tube and generates pressure. At this time, a static friction force can be generated between the diameter-changing device 300 and the ceramic tube to achieve the support of the ceramic tube. It should be understood that the diameter of some parts of the diameter-changing device 300 can be changed. For example, in the axial direction of the diameter-changing device 300, the diameter of some shaft segments can be changed.

[0044] Since the diameter-changing device 300 fixedly supports the ceramic tube from the inside of the ceramic tube, there are no clamping objects on the outer circumferential surface of the ceramic tube. During the turning operation, the entire outer circumferential surface of the ceramic tube can be machined in one go, without the need to clamp and reverse the ceramic tube again, improving the processing efficiency.

[0045] The tool device 400 is arranged on the moving path of the diameter-changing device 300. Since the ceramic tube is sleeved on the diameter-changing device 300 and fixedly supported by the diameter-changing device 300, the moving path of the diameter-changing device 300 is the moving path of the ceramic tube. The tool device 400 arranged on the moving path of the diameter-changing device 300 can contact the ceramic tube to complete the turning of the outer circumferential surface of the ceramic tube. It should be understood that if the structure of the tool device 400 is changed, specifically the turning tool structure, the turning processing of the inner wall surface of the lower end of the ceramic tube can also be achieved. To achieve the turning processing of the inner wall surface of the lower end of the ceramic tube, it is only necessary to control the position of the diameter-changing device 300 supporting inside the ceramic tube to be in the middle or upper side of the ceramic tube. As long as the diameter-changing device 300 does not cause interference in the lower end area of the ceramic tube, the turning tool can extend into the lower end of the ceramic tube to achieve the turning of the inner wall surface.

[0046] Refer to Figure 2 As shown, it can be understood that the diameter-changing device 300 includes a shaft rod 310 and an airbag 320. The airbag 320 is sleeved on the shaft rod 310. An air guide channel is provided inside the shaft rod 310, and the airbag 320 is communicated with the air guide channel.

[0047] The shaft rod 310 is arranged along the Z-axis direction and is used to connect with the workpiece shaft device 200. Specifically, the shaft rod 310 can be directly fixed on the workpiece shaft device 200, and the workpiece shaft device 200 drives the shaft rod 310 to rotate. Or the shaft rod 310 can be detachably connected to the workpiece shaft device 200 through a clamping mechanism such as a chuck. An air guide channel is provided inside the shaft rod 310. Specifically, the air inlet of the shaft rod 310 can be arranged at the end where the shaft rod 310 is connected to the workpiece shaft device 200. The air inlet is docked with the workpiece shaft device 200, and a rotary joint can be provided inside the workpiece shaft device 200 to facilitate the external connection of a gas supply device.

[0048] Before the diameter-changing device 300 supports the ceramic tube, the airbag 320 is not filled with gas, and the shaft rod 310 can be inserted into the interior of the ceramic tube. Together with the airbag 320, they are located inside the ceramic tube. Then, gas is pressed into the airbag 320 through the gas supply device, increasing the volume of the airbag 320, that is, increasing the external dimension of the airbag 320 to achieve the diameter-changing effect. The airbag 320 contacts the inner wall of the ceramic tube to achieve fixed support for the ceramic tube.

[0049] After the processing is completed, the gas supply device no longer presses gas into the airbag 320. After the airbag 320 is depressurized, its volume will decrease, and the supporting force of the airbag 320 on the ceramic tube will decrease until it disappears, or it cannot overcome the self-weight of the ceramic tube, and the ceramic tube will separate from the diameter-changing device 300.

[0050] Preferably, the wall surface of the airbag 320 is an elastic wall surface, that is, the airbag 320 is made of an elastic material. The elastic airbag 320 has a greater volume change when filled with gas and when not filled with gas. Therefore, when the gas filling into the airbag 320 stops, the airbag 320 can quickly contract and separate from the support of the ceramic tube, which can accelerate the speed of taking and placing the ceramic tube.

[0051] It can be understood that at least two airbags 320 are sleeved on the shaft rod 310, and the multiple airbags 320 are spaced apart along the axial direction of the shaft rod 310.

[0052] The multiple airbags 320 can increase the supporting points of the diameter-changing device 300 on the ceramic tube, and increase the contact area to improve the static friction force, making the ceramic tube more reliably fixed and supported on the diameter-changing device 300. Further, the multiple airbags 320 are spaced apart along the axial direction of the shaft rod 310, so the airbags 320 are distributed along the axial direction of the ceramic tube, and the support for the ceramic tube is more uniform. When the tool device 400 moves along the axial direction of the ceramic tube, the ceramic tube is more stable with a small offset and higher processing accuracy.

[0053] Refer to Figure 3 As shown, it can be understood that an aggregate chute 500 is provided. The aggregate chute 500 is located below the moving area of the diameter-changing device 300, and the tool device 400 is located in the aggregate chute 500.

[0054] Due to the material characteristics of the ceramic tube, dust is easily generated during turning processing. Therefore, the tool device 400 is preferably arranged in the aggregate chute 500, that is, the dust generated by the tool device 400 during the processing of the ceramic tube directly falls into the aggregate chute 500. It can be understood that a discharge port is provided at the bottom of the aggregate chute 500, and a conveying device 600 is provided below the discharge port. The conveying device 600 can continuously discharge dust and turning chips to avoid the accumulation of dust and turning chips affecting the processing of the ceramic tube.

[0055] Refer to Figure 4As shown, it can be understood that a conveyor belt assembly 610 is provided below the discharge port, and the conveyor belt assembly 610 serves as a feeding device 600. The conveyor belt assembly 610 has a horizontally arranged belt 611, and a plurality of partition plates 612 are provided on the surface of the belt 611. The plurality of partition plates 612 are distributed at intervals along the transmission direction of the belt 611, and the plate surface of the partition plate 612 is perpendicular to the transmission direction of the belt 611.

[0056] The conveyor belt assembly 610 is a relatively simple structure of a feeding device 600, which is reliable and stable. A plurality of partition plates 612 are arranged on the belt 611, which can improve the conveying capacity of the belt 611 for dust and turning chips, which is equivalent to forming a material storage space between two adjacent partition plates 612.

[0057] Reference Figure 5 As shown, it can be understood that a feeding device 700 is further provided. The feeding device 700 is arranged on the moving path of the diameter-changing device 300 . The feeding device 700 has a first bearing position 701 and a second bearing position 702 .

[0058] The feeding device 700 may provide a first loading position 701 on which the ceramic tube to be turned may be placed; the feeding device 700 may also provide a second loading position 702 on which the processed ceramic tube may be placed.

[0059] Reference Figure 6 As shown, it can be understood that the feeding device 700 includes a turntable 710 and a driving mechanism 720, and the driving mechanism 720 is connected to the turntable 710 in a transmission manner to drive the turntable 710 to rotate in a horizontal plane. The turntable 710 is provided with a first bearing position 701 and a second bearing position 702, and the line connecting the first bearing position 701 and the second bearing position 702 passes through the rotation center of the turntable 710.

[0060] Furthermore, by driving the turntable 710 to rotate through the driving mechanism 720, the positions of the first carrying position 701 and the second carrying position 702 can be interchanged, that is, the taking and placing positions of the diameter-changing device 300 can be fixed, and the first carrying position 701 carries the ceramic tube to be processed to the designated position and is taken away by the diameter-changing device 300, and then the driving mechanism 720 drives the turntable 710 to rotate, and moves the second carrying position 702 to the designated position, and the diameter-changing device 300 places the processed ceramic tube on the second carrying position 702.

[0061] Among them, the driving mechanism 720 can be a linear cylinder. The cylinder is connected with a rack, and the cylinder can drive the rack to move linearly. Correspondingly, a gear is coaxially arranged at the rotation center of the turntable 710. The gear is fixedly connected to the turntable 710, and the rack and the gear mesh with each other, and the rotation of the turntable 710 can be periodically controlled by the reciprocating movement of the linear cylinder. It should be understood that the turntable 710 only needs to complete the position exchange between the first carrying position 701 and the second carrying position 702, without considering the rotation of the entire circumference. Therefore, using a linear cylinder to drive the rack to control the rotation of the gear saves more installation space.

[0062] It can be understood that a gantry 800 is provided. The gantry 800 is arranged above the feeding device 700. The gantry 800 is provided with a driving rail assembly 810. The driving rail assembly 810 is connected with a clamping jaw 820, and the driving rail assembly 810 can drive the clamping jaw 820 to move in the horizontal and vertical directions.

[0063] The gantry 800 is used to transport ceramic tubes. The driving rail assembly 810 provides the moving strokes in the horizontal and vertical directions. The ceramic tubes are clamped by the clamping jaw 820, and then the driving rail assembly 810 drives the clamping jaw 820 to move, and the ceramic tubes can be placed on the feeding device 700. Preferably, the clamping jaw 820 adopts a flexible jaw structure, which can protect the ceramic tubes from being damaged by the clamping jaw 820.

[0064] The embodiments of the present invention have been described in detail above with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. An inverted lathe for ceramic tubes, characterized in that: include: A multi-axis driving device (100), the multi-axis driving device (100) having a moving stroke of an X-axis and a Z-axis, the X-axis being along a horizontal direction, and the Z-axis being along a vertical direction; A workpiece axis device (200), the workpiece axis device (200) is connected to the multi-axis driving device (100), the multi-axis driving device (100) is used to drive the workpiece axis device (200) to move along the X-axis and the Z-axis, and the workpiece axis device (200) has a driving stroke for rotating around the Z-axis; A diameter reducing device (300), the diameter reducing device (300) is connected to the workpiece shaft device (200), the axial direction of the diameter reducing device (300) is parallel to the Z axis, and the diameter reducing device (300) can adjust its own radial dimension; A tool device (400), wherein the tool device (400) is arranged on a moving path of the diameter-changing device (300).

2. The inverted lathe for ceramic tubes according to claim 1, characterized in that: The diameter-changing device (300) comprises a shaft (310) and an airbag (320), wherein the airbag (320) is sleeved on the shaft (310), an air guide channel is provided on the inner side of the shaft (310), and the airbag (320) is in communication with the air guide channel.

3. The inverted lathe for ceramic tubes according to claim 2, characterized in that: The shaft (310) is provided with at least two airbags (320), and the plurality of airbags (320) are distributed at intervals along the axial direction of the shaft (310).

4. The inverted lathe for ceramic tubes according to claim 2, characterized in that: The wall surface of the airbag (320) is an elastic wall surface.

5. The inverted lathe for ceramic tubes according to claim 1, characterized in that: A material collecting trough (500) is provided, the material collecting trough (500) is located below the moving area of ​​the diameter-changing device (300), and the tool device (400) is located in the material collecting trough (500).

6. The inverted lathe for ceramic tubes according to claim 5, characterized in that: The bottom of the collecting trough (500) is provided with a discharge port, and a feeding device (600) is provided below the discharge port.

7. The inverted lathe for ceramic tubes according to claim 6, characterized in that: A conveyor belt assembly (610) is provided below the discharge port, and the conveyor belt assembly (610) serves as the feeding device (600). The conveyor belt assembly (610) has a horizontally arranged belt (611), and a plurality of partition plates (612) are provided on the surface of the belt (611). The plurality of partition plates (612) are distributed at intervals along the transmission direction of the belt (611), and the plate surface of the partition plates (612) is perpendicular to the transmission direction of the belt (611).

8. The inverted lathe for ceramic tubes according to claim 1, characterized in that: A feeding device (700) is also provided. The feeding device (700) is arranged on the moving path of the diameter-changing device (300). The feeding device (700) has a first bearing position (701) and a second bearing position (702).

9. The inverted lathe for ceramic tubes according to claim 8, characterized in that: The feeding device (700) comprises a turntable (710) and a driving mechanism (720), wherein the driving mechanism (720) is connected to the turntable (710) in a transmission manner so as to drive the turntable (710) to rotate in a horizontal plane, and the turntable (710) is provided with the first bearing position (701) and the second bearing position (702), and a line connecting the first bearing position (701) and the second bearing position (702) passes through the rotation center of the turntable (710).

10. The inverted lathe for ceramic tubes according to claim 8, characterized in that: A gantry (800) is provided, the gantry (800) being arranged above the feeding device (700), the gantry (800) being provided with a driving rail assembly (810), the driving rail assembly (810) being connected with a material clamping claw (820), and the driving rail assembly (810) being capable of driving the material clamping claw (820) to move in a horizontal direction and a vertical direction.

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