A spindle device for machining inner hole of ceramic ferrule

Abstract

The present invention belongs to the technical field of spindles, and discloses a spindle device for processing inner holes of ceramic ferrules, including a spindle body, and also including: a protection mechanism, which includes a protective sleeve and a positioning sleeve, the protective sleeve is fixedly connected to the surface of the spindle body shaft core, and the positioning sleeve is set at the right end of the spindle body shaft core and the right end of the protective sleeve. The present invention can make the protective sleeve and the positioning sleeve protect the spindle shaft core by setting the protection mechanism, thereby avoiding the spindle wear and scrap caused by frequent disassembly between the spindle nut and the spindle, effectively reducing the maintenance cost of the equipment, and the positioning sleeve has the characteristic of being easy to disassemble, so as to facilitate the replacement of the positioning sleeve. Through the setting of the anti-slip mechanism, the positioning sleeve can be fixed on the protective sleeve, thereby ensuring the stability of the positioning sleeve, preventing the positioning sleeve from easily falling off the shaft core of the spindle body, and through the nut positioning mechanism, the spindle nut and the spindle can be kept accurately positioned when they are frequently disassembled.

Description

Technical Field

[0001] The invention belongs to the technical field of spindles, in particular to a spindle device for processing inner holes of a ceramic insert. Background Art

[0002] The fiber optic ceramic ferrule is a high-precision cylindrical special ceramic component that is precisely centered in the fiber optic connector plug. It has a micro hole in the center with an aperture and roundness error of 0.5 microns, which is used to fix the optical fiber. The center inner hole of this type of fiber optic ceramic ferrule has very high machining accuracy requirements and also very high requirements for machining machinery and equipment. The inner hole needs to be precisely machined by a grinder to meet the use requirements.

[0003] In the prior art, when the spindle processes the inner hole of the ceramic ferrule, the nut is frequently disassembled and replaced. However, the spindle nut is easily worn out and scrapped due to frequent disassembly and assembly with the spindle, and the traditional nut is difficult to disassemble and assemble quickly and accurately, thereby reducing the processing efficiency. To this end, we provide a spindle device for processing the inner hole of a ceramic ferrule to solve the above problems. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a spindle device for machining inner holes of ceramic ferrules.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a ceramic ferrule inner hole processing spindle device, comprising a spindle body, and also comprising:

[0006] The protection mechanism comprises a protection sleeve and a positioning sleeve, wherein the protection sleeve is fixedly connected to the surface of the main shaft body shaft core, the positioning sleeve is arranged at the right end of the main shaft body shaft core and the right end of the protection sleeve, the left end of the positioning sleeve is fixedly connected to a third fixing ring, the surface of the protection sleeve is fixedly connected to a first fixing ring, and an anti-slip mechanism is arranged between the third fixing ring and the first fixing ring;

[0007] A nut positioning mechanism, comprising a nut sleeve and a nut end cover, wherein the nut sleeve is sleeved on the surfaces of the positioning sleeve and the protective sleeve, a limiting mechanism is provided on the surface of the nut sleeve, and the nut sleeve is clamped on the surface of the protective sleeve through the limiting mechanism, a mounting ring is fixedly connected to the right end of the nut sleeve, and the nut end cover is sleeved on the mounting ring and the right end of the positioning sleeve, and the mounting ring is connected to the nut end cover;

[0008] A nut handle is sleeved on the surfaces of the nut end cover and the nut middle sleeve, and the inner wall of the nut handle is in contact with the limiting mechanism.

[0009] Preferably, the limiting mechanism includes a slot and a plurality of clamping plates, the slot is opened on the surface of the first fixing ring, the surface of the nut sleeve is opened with a plurality of through holes, each of the clamping plates is hinged to the surface of the nut sleeve, one end of each of the clamping plates passes through the corresponding through holes and is clamped into the slot, the other end of each of the clamping plates is fixedly connected to a second spring, and the second spring is fixedly connected to the surface of the nut sleeve.

[0010] Preferably, a first positioning ring and a second positioning ring are fixedly connected to the inner wall of the nut handle, and the second positioning ring is arranged on the left side of the first positioning ring, and the right side edge of the second positioning ring contacts the surface of each clamping plate.

[0011] Preferably, a second fixing ring is fixedly connected to the left end of the nut sleeve, a plurality of balls are inlaid on the surface of the second fixing ring, a snap groove is opened on the inner wall of the second positioning ring, and each ball is snapped into the snap groove, and the second fixing ring is arranged on the left side of the clamping plate.

[0012] Preferably, the surface sliding sleeve of the nut sleeve is provided with an extrusion ring, the extrusion ring is arranged on the right side of the first positioning ring, the right side surface of the extrusion ring is fixedly connected with a second compression spring, the right end of the second compression spring is fixedly connected to the left side surface of the mounting ring, and the second compression spring sleeve is arranged on the surface of the nut sleeve.

[0013] Preferably, a first compression spring is fixedly connected to the right side surface of the third fixing ring, and the right end of the first compression spring is in contact with the inner wall of the nut end cover.

[0014] Preferably, the anti-slip mechanism includes a limiting groove and an installation groove, the limiting groove is arranged on the right side of the first fixing ring, and the installation groove is arranged on the left side of the third fixing ring, the inner wall of the installation groove is fixedly connected with a guide rod and two opposite insertion rods are slidably arranged, and the two insertion rods are slidably sleeved on the guide rod, the surface of the guide rod is sleeved with a first spring, and the two ends of the first spring are respectively fixedly connected to the two insertion rods, the left ends of the two insertion rods are inserted into the limiting groove, and there are two limiting grooves and two installation grooves.

[0015] Preferably, a block for limiting the displacement of the extrusion ring is fixedly connected to the surface of the nut sleeve, and the block is arranged on the right side of the clamping plate.

[0016] Preferably, the surface of the nut end cover is detachably connected to the surface of the mounting ring by a plurality of bolts.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention can make the protective sleeve and the positioning sleeve protect the spindle core through the protection mechanism, thereby avoiding the spindle wear and scrapping caused by frequent disassembly and assembly between the spindle nut and the spindle, effectively reducing the maintenance cost of the equipment, and the positioning sleeve has the characteristic of being easy to disassemble, so as to facilitate the replacement of the positioning sleeve. Through the setting of the anti-slip mechanism, the positioning sleeve can be fixed on the protective sleeve, thereby ensuring the use stability of the positioning sleeve and preventing the positioning sleeve from easily falling off the spindle core of the spindle body. Through the nut positioning mechanism, the spindle nut and the spindle can be kept accurately positioned when they are frequently disassembled and assembled, so as to facilitate the subsequent accurate installation of the nut handle. And its dynamic balance is maintained within the effective range. Through the setting of the nut handle, the traditional nut disassembly and assembly method can be changed, and it has a fast and accurate disassembly and assembly effect, which effectively improves the processing efficiency. During the specific operation, it is only necessary to put the nut handle on the surface of the nut sleeve, and then put the nut sleeve on the protective sleeve, and fix the nut sleeve on the protective sleeve through the limiting mechanism to complete the installation of the nut handle. When the nut handle is removed subsequently, it is only necessary to slide the nut handle to the right to release the limit between the nut sleeve and the protective sleeve. The operation is more convenient and is conducive to the replacement of the nut handle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the split structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the front cross-section structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the connection between the protective sleeve and the positioning sleeve of the present invention;

[0023] Figure 5 A partial cross-sectional view of the protective cover of the present invention;

[0024] Figure 6 is a cross-sectional view of a positioning sleeve of the present invention;

[0025] Figure 7 It is a cross-sectional view of the sleeve in the nut of the present invention;

[0026] Figure 8 is a cross-sectional view of the nut handle of the present invention;

[0027] Fig. 9 For the present invention Figure 3 A magnified schematic diagram of the structure in the middle.

[0028] In the figure: 1. spindle body; 2. nut end cover; 3. nut handle; 4. positioning sleeve; 5. protective sleeve; 6. limiting groove; 7. clamping groove; 8. first fixing ring; 9. insertion rod; 10. first compression spring; 11. second fixing ring; 12. ball; 13. extrusion ring; 14. mounting ring; 15. second compression spring; 16. clamping plate; 17. perforation; 18. nut middle sleeve; 19. mounting groove; 20. guide rod; 21. first spring; 22. third fixing ring; 23. first positioning ring; 24. second positioning ring; 25. buckle groove; 26. second spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 9 As shown, the present invention provides a ceramic ferrule inner hole processing spindle device, including a spindle body 1, and also includes:

[0031] The protection mechanism includes a protection sleeve 5 and a positioning sleeve 4. The protection sleeve 5 is fixedly connected to the surface of the main shaft body 1 shaft core. The positioning sleeve 4 is sleeved on the right end of the main shaft body 1 shaft core and the right end of the protection sleeve 5. The left end of the positioning sleeve 4 is fixedly connected to a third fixing ring 22. The surface of the protection sleeve 5 is fixedly connected to a first fixing ring 8. An anti-slip mechanism is provided between the third fixing ring 22 and the first fixing ring 8.

[0032] The nut positioning mechanism comprises a nut middle sleeve 18 and a nut end cover 2. The nut middle sleeve 18 is sleeved on the surfaces of the positioning sleeve 4 and the protective sleeve 5. A limiting mechanism is provided on the surface of the nut middle sleeve 18, and the nut middle sleeve 18 is clamped on the surface of the protective sleeve 5 through the limiting mechanism. The right end of the nut middle sleeve 18 is fixedly connected with a mounting ring 14. The nut end cover 2 is sleeved on the mounting ring 14 and the right end of the positioning sleeve 4, and the mounting ring 14 is connected to the nut end cover 2.

[0033] The nut handle 3 is sleeved on the surfaces of the nut end cover 2 and the nut middle sleeve 18, and the inner wall of the nut handle 3 is in contact with the limiting mechanism.

[0034] The above scheme is adopted: through the protection mechanism, the protective sleeve 5 and the positioning sleeve 4 can protect the spindle from wear and scrapping caused by frequent disassembly and assembly between the spindle nut and the spindle, effectively reducing the maintenance cost of the equipment, and the positioning sleeve 4 has the characteristic of being easy to disassemble, so that the positioning sleeve 4 can be replaced. Through the setting of the anti-slip mechanism, the positioning sleeve 4 can be fixed on the protective sleeve 5, thereby ensuring the use stability of the positioning sleeve 4 and preventing the positioning sleeve 4 from easily falling off the shaft core of the spindle body 1. Through the nut positioning mechanism, the spindle nut and the spindle can maintain accurate positioning when they are frequently disassembled and assembled, so as to facilitate the subsequent accurate installation of the nut handle 3 and make it dynamically balanced. Keeping it within the effective range, through the setting of the nut handle 3, the traditional nut disassembly and assembly method can be changed, and it has a fast and accurate disassembly and assembly effect, which effectively improves the processing efficiency. During the specific operation, it is only necessary to sleeve the nut handle 3 on the surface of the nut middle sleeve 18, and then sleeve the nut middle sleeve 18 on the protective sleeve 5, and fix the nut middle sleeve 18 on the protective sleeve 5 through the limiting mechanism, and the installation of the nut handle 3 can be completed. When the nut handle 3 is removed subsequently, it is only necessary to slide the nut handle 3 to the right to release the limit between the nut middle sleeve 18 and the protective sleeve 5. The operation is more convenient, which is conducive to the replacement of the nut handle 3.

[0035] like Figures 1 to 9 As shown, the limiting mechanism includes a slot 7 and a plurality of clamping plates 16. The slot 7 is provided on the surface of the first fixing ring 8. A plurality of through holes 17 are provided on the surface of the nut sleeve 18. Each clamping plate 16 is hinged to the surface of the nut sleeve 18. One end of each clamping plate 16 passes through the corresponding through hole 17 and is clamped into the slot 7. The other end of each clamping plate 16 is fixedly connected to a second spring 26, and the second spring 26 is fixedly connected to the surface of the nut sleeve 18.

[0036] The above scheme is adopted: when the nut handle 3 is sleeved on the nut middle sleeve 18, the nut middle sleeve 18 can be sleeved on the protective sleeve 5. During this process, the left end of the clamping plate 16 will be squeezed and swung by the right side of the first fixing ring 8 until the left end of the clamping plate 16 reaches the clamping groove 7. The left end of the clamping plate 16 is automatically inserted into the clamping groove 7 by using the second spring 26, thereby completing the limit fixation of the nut middle sleeve 18, preventing the nut middle sleeve 18 from sliding out to the right, and fixing the nut handle 3. Only when the left end of the clamping plate 16 is away from the clamping groove 7, the nut middle sleeve 18 can be normally removed from the right side of the protective sleeve 5, and when the nut handle 3 slides to the right, the limit of the clamping plate 16 on the clamping groove 7 can be released, which makes the operation more convenient and is conducive to the replacement of the nut handle 3.

[0037] like Figure 2 , Figure 8 and Fig. 9As shown, the inner wall of the nut handle 3 is fixedly connected with a first positioning ring 23 and a second positioning ring 24 , and the second positioning ring 24 is arranged on the left side of the first positioning ring 23 , and the right side of the second positioning ring 24 contacts the surface of each clamping plate 16 .

[0038] Adopting the above scheme: when it is necessary to release the limit between the nut middle sleeve 18 and the protective sleeve 5, the nut handle 3 is directly slid to the right, so that the right side of the second positioning ring 24 can squeeze each clamping plate 16 to swing, so that each clamping plate 16 releases the limit on the clamping slot 7, and the nut handle 3 and the nut end cover 2 can be pulled to the right to remove the nut middle sleeve 18 from the protective sleeve 5, and then the nut handle 3 is removed from the left side of the nut middle sleeve 18. The operation is more convenient, and only by sliding the nut handle 3 to the right can the nut middle sleeve 18 and the protective sleeve 5 be released from the limit.

[0039] like Figure 2 , Figure 3 , Figures 7 to 9 As shown, the left end of the nut sleeve 18 is fixedly connected with a second fixing ring 11, and a plurality of balls 12 are inlaid on the surface of the second fixing ring 11. A snap groove 25 is provided on the inner wall of the second positioning ring 24, and each ball 12 is snapped into the snap groove 25. The second fixing ring 11 is arranged on the left side of the clamping plate 16.

[0040] The above scheme is adopted: when the nut handle 3 is sleeved on the nut middle sleeve 18, the ball 12 will be snapped into the snap groove 25, thereby positioning the nut handle 3, ensuring the stability of the nut handle 3 in normal use, and when the nut handle 3 slides to the right, the ball 12 will not hinder the movement of the nut handle 3.

[0041] like Figure 2 , Figure 3 , Figure 7 and Fig. 9 As shown, the surface sliding sleeve of the nut sleeve 18 is provided with an extrusion ring 13, and the extrusion ring 13 can be combined into a circular ring through two semicircular rings and sleeved on the nut sleeve 18. The extrusion ring 13 is arranged on the right side of the first positioning ring 23, and the right side surface of the extrusion ring 13 is fixedly connected with a second compression spring 15. The right end of the second compression spring 15 is fixedly connected to the left side surface of the mounting ring 14, and the second compression spring 15 is sleeved on the surface of the nut sleeve 18.

[0042] The above scheme is adopted: the extrusion ring 13 is able to squeeze the right side of the first positioning ring 23 under the elastic force of the second compression spring 15, thereby ensuring the stability of the nut handle 3 after installation and preventing it from sliding at will, and when the nut handle 3 slides to the right, it will squeeze the extrusion ring 13 to slide to the right and squeeze the second compression spring 15. When the nut handle 3 and the nut middle sleeve 18 are removed from the protective sleeve 5, the nut handle 3 can be directly pulled out from the left side of the extrusion ring 13 and removed.

[0043] like Figures 2 to 4 and Figure 6 As shown, the first compression spring 10 is fixedly connected to the right side surface of the third fixing ring 22 , and the right end of the first compression spring 10 is in contact with the inner wall of the nut end cover 2 .

[0044] By adopting the above scheme, the elastic force of the first compression spring 10 can be used to strengthen the clamping stability of the nut middle sleeve 18 on the protective sleeve 5, and when the nut middle sleeve 18 is released from the limit between the protective sleeve 5, it can also be more easily detached from the protective sleeve 5. When the nut middle sleeve 18 is sleeved on the protective sleeve 5, the inner wall of the nut end cover 2 will squeeze the first compression spring 10 for compression.

[0045] like Figure 2 , Figure 3 , Figure 7 and Fig. 9 As shown, the anti-slip mechanism includes a limiting groove 6 and a mounting groove 19. The limiting groove 6 is arranged on the right side of the first fixing ring 8, and the mounting groove 19 is arranged on the left side of the third fixing ring 22. The inner wall of the mounting groove 19 is fixedly connected with a guide rod 20 and two opposite plug rods 9 are slidably arranged, and the two plug rods 9 are slidably sleeved on the guide rod 20. The surface of the guide rod 20 is sleeved with a first spring 21, and the two ends of the first spring 21 are respectively fixedly connected to the two plug rods 9. The left ends of the two plug rods 9 are both inserted into the limiting groove 6, and the left ends of the two plug rods 9 will respectively hook the inner top wall and the inner bottom wall of the limiting groove 6. The limiting groove 6 and the mounting groove 19 are both set in two.

[0046] The above scheme is adopted: when the positioning sleeve 4 is installed, first press the left and right groups of insertion rods 9 to approach each other, and then insert the left ends of the two groups of insertion rods 9 into the two limiting grooves 6 respectively, and under the elastic force of the first spring 21, the two groups of insertion rods 9 can be firmly limited in the two limiting grooves 6, thereby preventing the positioning sleeve 4 from easily detaching from the protective sleeve 5, and the operation is also more convenient. When it is necessary to remove the positioning sleeve 4 from the right end of the protective sleeve 5, it is only necessary to press the left and right groups of insertion rods 9 to make the upper and lower insertion rods 9 approach each other, and then the two groups of insertion rods 9 can be pulled out from the two limiting grooves 6 respectively, and then the positioning sleeve 4 can be directly pulled out to the right.

[0047] like Figure 3 , Figure 7 and Fig. 9 As shown, a block for limiting the displacement of the extrusion ring 13 is fixedly connected to the surface of the nut middle sleeve 18 , and the block is arranged on the right side of the clamping plate 16 .

[0048] By adopting the above solution, the blocking block can be set to prevent the extrusion ring 13 from contacting the clamping plate 16 due to the elastic force of the second compression spring 15, thereby ensuring the subsequent normal swing of the clamping plate 16.

[0049] like Figures 1 to 3As shown, the surface of the nut end cover 2 is detachably connected to the surface of the mounting ring 14 via a plurality of bolts.

[0050] By adopting the above solution, the nut end cover 2 can be easily removed from the mounting ring 14, so as to replace the parts thereof.

[0051] The working principle and use process of the present invention are as follows: when the nut handle 3 is installed on the axis core of the spindle body 1, the positioning sleeve 4 is first sleeved on the right end of the protective sleeve 5, and two sets of insertion rods 9 are respectively inserted into the two limiting grooves 6 to fix the positioning sleeve 4, thereby preventing the positioning sleeve 4 from easily detaching from the protective sleeve 5, so that the positioning sleeve 4 and the protective sleeve 5 have a protective effect on the axis core of the spindle body 1, thereby avoiding the subsequent nut handle 3 from causing wear to the axis core of the spindle body 1 during disassembly and assembly, and then the nut middle sleeve 18 is sleeved on the protective sleeve 5. During this process, the left end of the clamping plate 16 will pass through the right side of the first fixing ring 8 to squeeze and swing until the left end of the clamping plate 16 reaches the clamping groove 7, and then the second spring 26 is used to automatically insert the left end of the clamping plate 16 into the clamping groove 7, thereby completing the limiting fixation of the nut middle sleeve 18, preventing the nut middle sleeve 18 from sliding out to the right, and fixing the nut handle 3. At the same time, the inner wall of the nut end cover 2 will also squeeze the first compression spring 10, thereby improving the limiting stability between the nut middle sleeve 18 and the protective sleeve 5, and finally completing the installation of the nut handle 3, thereby changing the traditional nut installation method. At this time, the right side edge of the second positioning ring 24 will contact the surface of each card plate 16, and the extrusion ring 13 will also abut against the right side edge of the first positioning ring 23, which prevents the nut handle 3 from sliding at will. When the nut handle 3 needs to be removed, it is only necessary to slide the nut handle 3 to the right. During this period, the right side edge of the second positioning ring 24 will squeeze each card plate 16 to swing around the corresponding hinge, so that each card plate 16 releases the limiting of the card slot 7, and the nut handle 3 and the nut end cover 2 can continue to be drawn to the right together, so that the nut middle sleeve 18 is removed from the protective sleeve 5, and then the nut handle 3 is removed from the left side of the nut middle sleeve 18, which is more convenient to operate.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ceramic ferrule inner hole machining spindle device, comprising a spindle body (1), characterized in that: Also includes: A protection mechanism, comprising a protection sleeve (5) and a positioning sleeve (4), wherein the protection sleeve (5) is fixedly connected to the surface of the shaft core of the main shaft body (1), the positioning sleeve (4) is sleeved on the right end of the shaft core of the main shaft body (1) and the right end of the protection sleeve (5), the left end of the positioning sleeve (4) is fixedly connected to a third fixing ring (22), the surface of the protection sleeve (5) is fixedly connected to a first fixing ring (8), and an anti-slip mechanism is provided between the third fixing ring (22) and the first fixing ring (8); A nut positioning mechanism, comprising a nut middle sleeve (18) and a nut end cover (2), wherein the nut middle sleeve (18) is sleeved on the surfaces of the positioning sleeve (4) and the protective sleeve (5), a limiting mechanism is provided on the surface of the nut middle sleeve (18), and the nut middle sleeve (18) is clamped on the surface of the protective sleeve (5) through the limiting mechanism, a mounting ring (14) is fixedly connected to the right end of the nut middle sleeve (18), the nut end cover (2) is sleeved on the mounting ring (14) and the right end of the positioning sleeve (4), and the mounting ring (14) is connected to the nut end cover (2); A nut handle (3) is sleeved on the surfaces of the nut end cover (2) and the nut middle sleeve (18), and the inner wall of the nut handle (3) is in contact with the limiting mechanism.

2. A ceramic ferrule inner hole machining spindle device according to claim 1, characterized in that: The limiting mechanism comprises a slot (7) and a plurality of clamping plates (16), wherein the slot (7) is formed on the surface of the first fixing ring (8), and a plurality of through holes (17) are formed on the surface of the nut sleeve (18), and each of the clamping plates (16) is hinged on the surface of the nut sleeve (18), and one end of each of the clamping plates (16) passes through the corresponding through hole (17) and is clamped into the slot (7), and the other end of each of the clamping plates (16) is fixedly connected to a second spring (26), and the second spring (26) is fixedly connected to the surface of the nut sleeve (18).

3. A ceramic ferrule inner hole machining spindle device according to claim 2, characterized in that: A first positioning ring (23) and a second positioning ring (24) are fixedly connected to the inner wall of the nut handle (3), and the second positioning ring (24) is arranged on the left side of the first positioning ring (23), and the right side edge of the second positioning ring (24) contacts the surface of each clamping plate (16).

4. A ceramic ferrule inner hole machining spindle device according to claim 3, characterized in that: A second fixing ring (11) is fixedly connected to the left end of the nut middle sleeve (18), a plurality of balls (12) are inlaid on the surface of the second fixing ring (11), a snap groove (25) is provided on the inner wall of the second positioning ring (24), and each ball (12) is snapped into the snap groove (25), and the second fixing ring (11) is arranged on the left side of the clamping plate (16).

5. A ceramic ferrule inner hole machining spindle device according to claim 3, characterized in that: The surface sliding sleeve of the nut middle sleeve (18) is provided with an extrusion ring (13), the extrusion ring (13) is arranged on the right side of the first positioning ring (23), the right side surface of the extrusion ring (13) is fixedly connected to a second compression spring (15), the right end of the second compression spring (15) is fixedly connected to the left side surface of the mounting ring (14), and the second compression spring (15) is sleeved on the surface of the nut middle sleeve (18).

6. A ceramic ferrule inner hole machining spindle device according to claim 1, characterized in that: A first compression spring (10) is fixedly connected to the right side surface of the third fixing ring (22), and the right end of the first compression spring (10) is in contact with the inner wall of the nut end cover (2).

7. A ceramic ferrule inner hole machining spindle device according to claim 1, characterized in that: The anti-slip mechanism comprises a limit groove (6) and a mounting groove (19), wherein the limit groove (6) is arranged on the right side of the first fixing ring (8), and the mounting groove (19) is arranged on the left side of the third fixing ring (22). The inner wall of the mounting groove (19) is fixedly connected with a guide rod (20) and two opposite insertion rods (9) are slidably arranged, and the two insertion rods (9) are slidably sleeved on the guide rod (20). The surface of the guide rod (20) is sleeved with a first spring (21), and the two ends of the first spring (21) are respectively fixedly connected to the two insertion rods (9). The left ends of the two insertion rods (9) are inserted into the limit groove (6), and the limit groove (6) and the mounting groove (19) are both arranged in two.

8. A ceramic ferrule inner hole machining spindle device according to claim 5, characterized in that: A blocking block for limiting the displacement of the extrusion ring (13) is fixedly connected to the surface of the nut middle sleeve (18), and the blocking block is arranged on the right side of the clamping plate (16).

9. A ceramic ferrule inner hole machining spindle device according to claim 1, characterized in that: The surface of the nut end cover (2) is detachably connected to the surface of the mounting ring (14) via a plurality of bolts.

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