Laser gyroscope cavity working face polishing device

Abstract

The utility model discloses a laser gyro cavity working face polishing device which comprises a multi-axis machine tool, a polishing pool, a cavity fixing mechanism and a polishing die, one end of the cavity fixing mechanism in the horizontal direction is installed on a rotary table of the multi-axis machine tool, and the other end of the cavity fixing mechanism in the horizontal direction extends into the polishing pool and is used for fixing a gyro cavity which is horizontally arranged in the axial direction. The upper end of the polishing die is installed on a main shaft of the multi-shaft machine tool, the bottom face of the polishing die forms a polishing face, the main shaft can move up and down till the polishing face is attached to a working face horizontally arranged in the circumferential direction of the gyroscope cavity, and the main shaft drives the polishing die to rotate in the circumferential direction when rotating. The polishing surface is used for polishing a plurality of working surfaces in the circumferential direction of the gyroscope cavity. According to the utility model, the use of two kinds of process equipment is avoided, so that the processing efficiency is improved, and the polishing mode not only can remove the damage caused by the cutting process to obtain better surface quality, but also can accurately control the surface type.

Description

Technical Field

[0001] The utility model relates to the technical field of laser gyroscope preparation, in particular to a laser gyroscope cavity working surface polishing device. Background Art

[0002] The laser gyro cavity is one of the important components of the laser gyro, and its main material is microcrystalline glass. The surface where the laser gyro cavity is connected to the reflective lens needs to be processed to an ultra-smooth level (Ra < 1nm) to facilitate optical bonding between the two. Traditional cavity connection surface processing is to obtain a flat surface through five-axis cutting, and then the flat surface obtained by cutting is ground and polished by a ring polishing machine to remove surface damage and sub-surface damage caused by the cutting process, while eliminating the residual stress introduced during the cutting process. This traditional processing method is divided into two steps, which is time-consuming and inefficient. Utility Model Content

[0003] In view of the problems in the background technology, the utility model proposes a laser gyroscope cavity working surface polishing device which improves processing efficiency and ensures the processing quality of the working surface.

[0004] The utility model adopts the following technical solutions:

[0005] A device for polishing the working surface of a laser gyroscope cavity comprises a multi-axis machine tool, a polishing pool, a cavity fixing mechanism and a polishing die. One horizontal end of the cavity fixing mechanism is mounted on a turntable of the multi-axis machine tool, and the other horizontal end extends into the polishing pool. The device is used to fix the gyroscope cavity arranged axially horizontally. When the turntable rotates, the gyroscope cavity is driven to rotate circumferentially. The upper end of the polishing die is mounted on the main shaft of the multi-axis machine tool, and the bottom surface of the polishing die forms a polishing surface. The main shaft can move up and down until the polishing surface is in contact with the horizontally arranged working surface of the gyroscope cavity. When the main shaft rotates, the polishing die is driven to rotate circumferentially, so that the polishing surface polishes multiple working surfaces circumferentially of the gyroscope cavity.

[0006] Preferably, the cavity fixing mechanism includes a horizontal shaft and a dynamic sealing ring.

[0007] The horizontal shaft cooperates with the center hole of the gyroscope cavity, one end of which is fixed on the turntable, and the other end of which passes through the side wall of the polishing pool and extends into the polishing pool. The gyroscope cavity is located in the polishing pool and is sleeved on the horizontal shaft; the dynamic sealing ring is sleeved on the horizontal shaft and is sealed between the horizontal shaft and the side wall of the polishing pool.

[0008] Preferably, one end of the side wall of the polishing pool facing the cavity fixing mechanism has a sleeve extending toward the cavity fixing mechanism, and the dynamic sealing ring is sealed between the horizontal shaft and the sleeve.

[0009] Preferably, a stop structure is provided on the horizontal shaft to prevent the gyro cavity from axially moving. The horizontal shaft includes a large shaft section, a middle shaft section and a small shaft section. The sleeve cooperates with the large shaft section, and the dynamic sealing ring is sleeved on the large shaft section. The gyro cavity cooperates with and sleeves the small shaft section. The end of the small shaft section is detachably connected to a locking bolt, and a gasket is passed through the locking bolt.

[0010] The stop structure includes a step surface formed between the middle shaft section and the small shaft section, a locking bolt detachably connected to the end of the small shaft section, and a gasket passing through the locking bolt.

[0011] Preferably, the polishing die is fixed to the spindle of the multi-axis machine tool through a clamping assembly. The polishing die includes a polishing die rod and a polishing die body. The clamping assembly includes a fixing seat, a pressure ring and a clamp. The top surface of the clamp is provided with a positioning through hole that cooperates with the polishing die rod. The side wall of the clamp is circumferentially spaced apart with a plurality of first side grooves that are connected to the positioning through hole. The first side grooves extend downward to penetrate the bottom surface of the clamp, so that the clamp forms a structure consisting of a plurality of clamping blocks connected at the top.

[0012] The lower part of the inner wall of the pressure ring forms a first conical surface that is larger at the top and smaller at the bottom, and the bottom end part of the outer wall of the clamp forms a second conical surface that cooperates with the first conical surface. The bottom end part of the clamp is crimped with the pressure ring through the cooperation of the first conical surface and the second conical surface, so that multiple clamping blocks are enclosed to form the positioning through hole; the bottom surface of the fixed seat is provided with a receiving groove that cooperates with the upper part of the clamp, and the upper part of the clamp is placed in the receiving groove, and the polishing mold rod is passed through the positioning through hole. The upper end thereof passes through the positioning through hole and is detachably connected to the fixed seat, and the lower end thereof extends out from the positioning through hole and is connected to the polishing mold body; the upper part of the pressure ring is detachably connected to the lower part of the fixed seat.

[0013] Preferably, a second side groove communicating with the positioning through hole is formed on the surface of the clamping block, the second side groove extends upward to the top surface of the penetrating clamp, and the second side groove extends downward to the middle of the second tapered surface.

[0014] Preferably, the portion of the outer wall of the clamp located above the second conical surface forms a third conical surface that is smaller at the top and larger at the bottom, and the outer wall of the clamp is provided with an annular groove, which is located between the second conical surface and the third conical surface; the inner wall of the pressure ring is located above the first conical surface and is provided with a stop ring, and after the clamp and the pressure ring are crimped, the stop ring is located in the annular groove.

[0015] Preferably, an internal thread is provided on the upper inner wall of the pressure ring, and a first external thread matching the internal thread is provided on the lower outer wall of the fixing seat. The upper part of the pressure ring is connected to the lower thread of the fixing seat through the matching of the internal thread and the first external thread.

[0016] Preferably, a threaded hole is provided on the top surface of the accommodating groove, a second external thread matching the threaded hole is provided on the upper part of the polishing mold rod, and the upper part of the polishing mold rod extends into the threaded hole to thread the polishing mold rod into the fixing seat.

[0017] Preferably, a stirrer is provided on the polishing pool for stirring the polishing medium in the polishing pool.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] The laser gyroscope cavity working surface polishing device of the present invention, by adding a polishing pool to the multi-axis machine and fixing a small grinding disc on the main shaft, can cleverly utilize the powerful processing capability of the multi-axis machine to polish the patch surface of the laser gyroscope cavity, avoiding the use of two process equipments and thus improving the processing efficiency. This polishing method can not only remove the damage caused by the cutting process to obtain better surface quality, but also can accurately control the surface shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to make the present invention more easily understood, the present invention will be described in more detail with reference to the specific embodiments shown in the accompanying drawings. These drawings only depict typical embodiments of the present invention and should not be considered as limiting the scope of protection of the present invention.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of a laser gyroscope cavity working surface polishing device according to an embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the main structure of the laser gyroscope cavity working surface polishing device according to an embodiment of the present utility model.

[0023] Figure 3 This is a structural schematic diagram of a gyro cavity fixed on a cavity fixing mechanism according to an embodiment of the utility model.

[0024] Figure 4 This is a structural diagram of the cavity fixing mechanism of an embodiment of the present utility model.

[0025] Figure 5 This is a structural diagram of the cavity fixing mechanism of an embodiment of the utility model (locking bolts and gaskets are not shown).

[0026] Figure 6 This is a cross-sectional view of a clamping assembly clamping a polishing mold according to an embodiment of the present invention.

[0027] Figure 7 This is a cross-sectional view of another aspect of the clamping assembly of the embodiment of the present invention clamping the polishing mold.

[0028] Figure 8Schematic diagram of the three-dimensional structure of the fixture.

[0029] Figure 9 Schematic diagram of the three-dimensional structure of the polishing pool.

[0030] Figure markings: 1. main shaft; 2. polishing pool; 21. sleeve; 22. mixer; 3. cavity fixing mechanism; 31. horizontal shaft; 32. dynamic sealing ring; 33. locking bolt; 34. gasket; 4. turntable; 5. gyroscope cavity; 51. working surface; 6. polishing mold; 61. polishing mold rod; 611. second external thread; 62. polishing mold body; 63. polishing surface; 7. clamping assembly; 71. fixing seat; 711. accommodating groove; 712. first external thread; 713. threaded hole; 72. pressure ring; 721. first conical surface; 722. stop ring; 723. internal thread; 73. clamp; 731. positioning through hole; 732. first side groove; 733. clamping block; 734. second conical surface; 735. second side groove; 73 third conical surface; 737. ring groove. DETAILED DESCRIPTION

[0031] The following describes the implementation methods of the present invention with reference to the accompanying drawings so that those skilled in the art can better understand the present invention and implement it. However, the enumerated embodiments are not intended to limit the present invention. Unless there is a conflict, the following embodiments and the technical features in the embodiments can be combined with each other, and the same components are represented by the same figure marks.

[0032] like Figure 1 and Figure 2 As shown, the laser gyroscope cavity working surface polishing device of this embodiment includes a multi-axis machine tool, a polishing pool 2, a cavity fixing mechanism 3 and a polishing mold 6. One end of the cavity fixing mechanism 3 in the horizontal direction is installed on the turntable 4 of the multi-axis machine tool, and the other end thereof in the horizontal direction extends into the polishing pool 2, and is used to fix the axially horizontally arranged gyroscope cavity 5. When the turntable 4 rotates, it drives the gyroscope cavity 5 to rotate circumferentially. The upper end of the polishing mold 6 is installed on the main shaft 1 of the multi-axis machine tool, and a polishing surface 63 is formed on the bottom surface thereof. The main shaft 1 can move up and down until the polishing surface 63 is in contact with the circumferentially horizontally arranged working surface 51 of the gyroscope cavity 5, and when the main shaft 1 rotates, it drives the polishing mold 6 to rotate circumferentially, so that the polishing surface 63 polishes the multiple circumferential working surfaces 51 of the gyroscope cavity 5.

[0033] Therefore, by adding a polishing pool 2 to the multi-axis machine tool and fixing a small grinding wheel on the main shaft 1, the powerful processing capability of the multi-axis machine can be cleverly utilized to polish the working surface of the laser gyroscope cavity, avoiding the use of two process equipments and thus improving the processing efficiency. This polishing method can not only remove the damage caused by the cutting process to obtain better surface quality, but also accurately control the surface shape.

[0034] In this embodiment, Figure 3-Figure 5 As shown, the cavity fixing mechanism 3 includes a horizontal shaft 31 and a dynamic sealing ring 32.

[0035] The horizontal shaft 31 cooperates with the center hole of the gyroscope cavity 5, one end of which is fixed on the turntable 4, and the other end of which passes through the side wall of the polishing pool 2 and extends into the polishing pool 2. The gyroscope cavity 5 is located in the polishing pool 2 and is sleeved on the horizontal shaft 31; the dynamic sealing ring 32 is sleeved on the horizontal shaft 31 and is sealed between the horizontal shaft 31 and the side wall of the polishing pool 2 to prevent polishing powder from leaking out during processing and contaminating the five-axis machine.

[0036] In this embodiment, one end of the side wall of the polishing pool 2 facing the cavity fixing mechanism 3 has a sleeve 21 extending toward the cavity fixing mechanism 3 , and a dynamic sealing ring 32 is sealed between the horizontal shaft 31 and the sleeve 21 .

[0037] In this embodiment, a stop structure is provided on the horizontal shaft 31 to prevent the gyro cavity 5 from axially moving. The horizontal shaft 31 includes a large shaft section, a middle shaft section and a small shaft section. The sleeve 21 cooperates with the large shaft section, and the dynamic seal ring 32 is sleeved on the large shaft section. The gyro cavity 5 cooperates with and sleeves on the small shaft section. The end of the small shaft section is detachably connected to a locking bolt 33, and a gasket 34 is passed through the locking bolt 33.

[0038] The stop structure includes a step surface formed between the middle shaft section and the small shaft section, a locking bolt 33 detachably connected to the end of the small shaft section, and a gasket 34 passing through the locking bolt 33 .

[0039] That is, one end of the gyro cavity 5 is stopped by the step surface, and the other end is stopped by the gasket 34 and the locking bolt 33 to prevent the gyro cavity 5 from sliding during the processing.

[0040] In this embodiment, Figure 6-Figure 8 As shown, the polishing die 6 is fixed on the spindle 1 of the multi-axis machine tool through the clamping assembly 7. The polishing die 6 includes a polishing die rod 61 and a polishing die body 62. The clamping assembly 7 includes a fixing seat 71, a pressure ring 72 and a clamp 73. The top surface of the clamp 73 is provided with a positioning through hole 731 that cooperates with the polishing die rod 61. The side wall of the clamp 73 is circumferentially spaced and provided with a plurality of first side grooves 732 that are connected to the positioning through hole 731. The first side grooves 732 extend downward to penetrate the bottom surface of the clamp 73, so that the clamp 73 forms a structure consisting of a plurality of clamping blocks 733 connected at the top.

[0041] The lower part of the inner wall of the pressure ring 72 forms a first conical surface 721 which is larger at the top and smaller at the bottom, and the bottom end of the outer wall of the clamp 73 forms a second conical surface 734 which cooperates with the first conical surface 721. The bottom end of the clamp 73 is press-connected with the pressure ring 72 through the cooperation of the first conical surface 721 and the second conical surface 734, so that a plurality of clamping blocks 733 are enclosed to form a positioning through hole 731; the bottom surface of the fixed seat 71 is provided with a receiving groove 711 which cooperates with the upper part of the clamp 73, and the upper part of the clamp 73 is placed in the receiving groove 711, and the polishing mold rod 61 is passed through the positioning through hole 731. After its upper end passes through the positioning through hole 731, it is detachably connected to the fixed seat 71, and its lower end extends out of the positioning through hole 731 and is connected to the polishing mold body 62; the upper part of the pressure ring 72 is detachably connected to the lower part of the fixed seat 71.

[0042] Since the fixture 73 is an elastic structure composed of clamping blocks 733 connected at the top, the size can be freely scaled, so that polishing molds 6 of different materials and sizes can be selected according to different polishing requirements.

[0043] In this embodiment, a second side groove 735 communicating with the positioning through hole 731 is formed on the surface of the clamping block 733 . The second side groove 735 extends upward to the top surface of the clamp 73 and extends downward to the middle of the second tapered surface 734 .

[0044] In this embodiment, the outer wall of the clamp 73 is located above the second conical surface 734 to form a third conical surface 736 that is smaller at the top and larger at the bottom. The outer wall of the clamp 73 is provided with an annular groove 737, and the annular groove 737 is located between the second conical surface 734 and the third conical surface 736; the inner wall of the pressure ring 72 is located above the first conical surface 721 and is provided with a stop ring 722. After the clamp 73 and the pressure ring 72 are crimped, the stop ring 722 is located in the annular groove 737.

[0045] In this embodiment, an internal thread 723 is provided on the upper portion of the inner wall of the pressure ring 72, and a first external thread 712 that cooperates with the internal thread 723 is provided on the lower outer wall of the fixing seat 71. The upper portion of the pressure ring 72 is threadably connected to the lower portion of the fixing seat 71 through the cooperation of the internal thread 723 and the first external thread 712.

[0046] In this embodiment, a threaded hole 713 is provided on the top surface of the accommodating groove 711, and a second external thread 611 is provided on the upper part of the polishing mold rod 61 to cooperate with the threaded hole 713. The upper part of the polishing mold rod 61 extends into the threaded hole 713 to thread the polishing mold rod 61 into the fixing seat 71.

[0047] In this embodiment, Figure 9 As shown, a stirrer 22 is provided on the polishing pool 2 for stirring the polishing medium in the polishing pool 2. Polishing powder solutions of different components can be added to the polishing pool 2 and rotated and stirred by the stirrer 22 to prevent the polishing powder particles from agglomerating and settling.

[0048] Compared with traditional cavity processing devices, this device has the following advantages:

[0049] The processing efficiency is improved, and one equipment process is directly used to reduce cost investment.

[0050] Not only can better surface quality be obtained, but also the surface shape can be precisely controlled.

[0051] The embodiments described above are merely preferred embodiments of the present invention. The phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments" used in this specification may refer to one or more of the same or different embodiments of the present disclosure. Any common changes and substitutions made by those skilled in the art within the scope of the present invention are intended to be encompassed within the scope of protection of the present invention.

Claims

1. A laser gyroscope cavity working surface polishing device, characterized in that: The invention comprises a multi-axis machine tool, a polishing pool (2), a cavity fixing mechanism (3) and a polishing die (6). One end of the cavity fixing mechanism (3) in the horizontal direction is mounted on a turntable (4) of the multi-axis machine tool, and the other end thereof in the horizontal direction extends into the polishing pool (2) and is used for fixing a gyro cavity (5) arranged axially horizontally. When the turntable (4) rotates, the gyro cavity (5) is driven to rotate circumferentially. The upper end of the polishing die (6) is mounted on a main shaft (1) of the multi-axis machine tool, and a polishing surface (63) is formed on the bottom surface of the polishing die (6). The main shaft (1) can move up and down until the polishing surface (63) is in contact with a working surface (51) arranged circumferentially horizontally of the gyro cavity (5). When the main shaft (1) rotates, the polishing die (6) is driven to rotate circumferentially, so that the polishing surface (63) polishes multiple working surfaces (51) circumferentially of the gyro cavity (5).

2. The laser gyro cavity working surface polishing device according to claim 1, characterized in that: The cavity fixing mechanism (3) comprises a horizontal shaft (31) and a dynamic sealing ring (32). The horizontal shaft (31) is matched with the center hole of the gyroscope cavity (5), one end of which is fixed on the turntable (4), and the other end of which passes through the side wall of the polishing pool (2) and extends into the polishing pool (2). The gyroscope cavity (5) is located in the polishing pool (2) and is sleeved on the horizontal shaft (31); the dynamic sealing ring (32) is sleeved on the horizontal shaft (31) and is sealed between the horizontal shaft (31) and the side wall of the polishing pool (2).

3. The laser gyro cavity working surface polishing device according to claim 2, characterized in that: One end of the side wall of the polishing pool (2) facing the cavity fixing mechanism (3) is provided with a sleeve (21) extending toward the cavity fixing mechanism (3), and a dynamic sealing ring (32) is sealingly connected between the horizontal shaft (31) and the sleeve (21).

4. The laser gyro cavity working surface polishing device according to claim 3, characterized in that: The horizontal shaft (31) is provided with a stop structure for preventing the gyro cavity (5) from axially moving. The horizontal shaft (31) includes a large shaft section, a middle shaft section and a small shaft section. The sleeve (21) cooperates with the large shaft section. The dynamic sealing ring (32) is sleeved on the large shaft section. The gyro cavity (5) cooperates with and sleeves on the small shaft section. The end of the small shaft section is detachably connected with a locking bolt (33). A gasket (34) is passed through the locking bolt (33). The stop structure comprises a step surface formed between the middle shaft section and the small shaft section, a locking bolt (33) detachably connected to the end of the small shaft section, and a washer (34) passing through the locking bolt (33).

5. The laser gyroscope cavity working surface polishing device according to any one of claims 1 to 4, characterized in that: The polishing die (6) is fixed on the main shaft (1) of the multi-axis machine tool through a clamping assembly (7). The polishing die (6) includes a polishing die rod (61) and a polishing die body (62). The clamping assembly (7) includes a fixing seat (71), a pressure ring (72) and a clamp (73). The top surface of the clamp (73) is provided with a positioning through hole (731) that matches the polishing die rod (61). The side wall of the clamp (73) is provided with a plurality of first side grooves (732) that are connected to the positioning through hole (731) at intervals in the circumferential direction. The first side grooves (732) extend downward to penetrate the bottom surface of the clamp (73), so that the clamp (73) forms a structure consisting of a plurality of clamping blocks (733) connected at the top. The lower portion of the inner wall of the pressure ring (72) forms a first conical surface (721) that is larger at the top and smaller at the bottom, and the bottom end portion of the outer wall of the clamp (73) forms a second conical surface (734) that matches the first conical surface (721). The bottom end portion of the clamp (73) is pressed against the pressure ring (72) through the matching of the first conical surface (721) and the second conical surface (734), so that the plurality of clamping blocks (733) enclose the positioning through hole (731); the bottom of the fixing seat (71) The surface is provided with a receiving groove (711) which cooperates with the upper part of the clamp (73); the upper part of the clamp (73) is placed in the receiving groove (711); the polishing mold rod (61) is passed through the positioning through hole (731); the upper end thereof passes through the positioning through hole (731) and is detachably connected to the fixing seat (71); the lower end thereof extends from the positioning through hole (731) and is connected to the polishing mold body (62); the upper part of the pressure ring (72) is detachably connected to the lower part of the fixing seat (71).

6. The laser gyro cavity working surface polishing device according to claim 5, characterized in that: The surface of the clamping block (733) is provided with a second side groove (735) connected to the positioning through hole (731), the second side groove (735) extends upward to the top surface of the clamp (73), and the second side groove (735) extends downward to the middle of the second tapered surface (734).

7. The laser gyro cavity working surface polishing device according to claim 5, characterized in that: The outer wall of the clamp (73) is located above the second conical surface (734) to form a third conical surface (736) that is smaller at the top and larger at the bottom. The outer wall of the clamp (73) is provided with an annular groove (737), and the annular groove (737) is located between the second conical surface (734) and the third conical surface (736). The inner wall of the pressure ring (72) is located above the first conical surface (721) and is provided with a stop ring (722). After the clamp (73) and the pressure ring (72) are crimped, the stop ring (722) is located in the annular groove (737).

8. The laser gyro cavity working surface polishing device according to claim 5, characterized in that: An internal thread (723) is provided on the upper portion of the inner side wall of the pressure ring (72), and a first external thread (712) that cooperates with the internal thread (723) is provided on the lower outer side wall of the fixing seat (71). The upper portion of the pressure ring (72) is threadably connected to the lower portion of the fixing seat (71) through the cooperation between the internal thread (723) and the first external thread (712).

9. The laser gyro cavity working surface polishing device according to claim 5, characterized in that: A threaded hole (713) is provided on the top surface of the accommodating groove (711), and a second external thread (611) matching the threaded hole (713) is provided on the upper portion of the polishing mold rod (61), and the upper portion of the polishing mold rod (61) extends into the threaded hole (713) so that the polishing mold rod (61) is threadedly connected to the fixing seat (71).

10. The laser gyroscope cavity working surface polishing device according to any one of claims 1 to 4, characterized in that: The polishing pool (2) is provided with a stirrer (22) for stirring the polishing medium in the polishing pool (2).

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