Cambered surface fine polishing equipment based on eyepiece of sighting telescope

Abstract

The invention relates to the technical field of eyepiece production equipment, and discloses sighting telescope eyepiece cambered surface fine polishing equipment which comprises a workbench, a base table is fixedly mounted on the upper surface of the workbench, a mounting frame is fixedly mounted on the side wall of the base table, and an air cylinder is fixedly mounted on the upper surface of the mounting frame; the output end of the air cylinder is provided with an attaching and polishing module for improving the polishing and attaching stability of the device and the surface of the arc eyepiece. Through arrangement of an attaching grinding module, no matter a grinding wheel is in contact with an arc-shaped surface with any radian, a swing arm can deflect along with a bracket by taking a rotating rod as a rotating center, meanwhile, along with downward pushing of an air cylinder, under the elastic force effect of an attaching spring, the outer surface of the grinding wheel is tightly attached to the outer wall of the eyepiece, and at the moment, a motor is started; and under the transmission cooperation of the transmission wheel II, the transmission wheel III and the transmission wheel I, the polishing wheel at the center of the bracket is driven to rotate at a high speed, so that the arc-shaped outer surface of the eyepiece is polished.

Description

Technical Field

[0001] This invention relates to the field of eyepiece manufacturing equipment technology, specifically to a precision polishing device for the curved surface of a sight eyepiece. Background Technology

[0002] Sights typically have matching lenses, and the production process involves continuous grinding and polishing of these lenses. The raw materials undergo coarse grinding, fine grinding, and polishing in sequence to achieve high clarity in the finished lenses.

[0003] According to a public notice (Announcement No.: CN115042047A) regarding a precision polishing device for the curved surface of a sight eyepiece, the above application describes a process where a second and third cylinder drive a clamp to move to one side of the eyepiece to be processed. A second motor drives a bidirectional lead screw to rotate, and under the constraint of a sliding pin, a pair of nuts move closer or further apart on the bidirectional lead screw. This allows the eyepiece to be clamped and fixed by an L-shaped clamping arm, reducing eyepiece slippage. The output end of the first cylinder drives a sliding plate to move up and down between a pair of support shafts, causing the polishing layer on the polishing wheel to adhere tightly to the eyepiece. Because the deformable layer has a certain deformation capacity, it can contact the curved surface of the eyepiece under pressure, achieving surface-to-surface contact and improving the polishing area and efficiency of the eyepiece.

[0004] Because the eyepiece surface is curved, existing polishing structures have poor fit with it. Usually, an elastic fitting structure is set on the polishing structure, but it is difficult for the elastic fitting mechanism to apply pressure perpendicular to the current polishing position of the eyepiece. This results in a certain angle between the polishing wheel and the curved surface of the eyepiece, which can easily lead to polishing defects on the eyepiece surface and also increase the wear and tear of the eyepiece. In view of this, we propose a fine polishing device for the curved surface of a sight eyepiece. Summary of the Invention

[0005] The purpose of this invention is to provide a precision polishing device for the curved surface of a sight eyepiece, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precision polishing device for the curved surface of a sight eyepiece, comprising a worktable, a linear motor fixedly mounted on the side wall of the worktable, a tray fixedly connected to the output end of the linear motor, a base fixedly mounted on the upper surface of the worktable, a mounting frame fixedly mounted on the side wall of the base, a cylinder fixedly mounted on the upper surface of the mounting frame, and an attachment and polishing module provided at the output end of the cylinder to improve the adhesion stability of the device to the curved eyepiece surface during polishing; The attachment and polishing module includes a U-shaped frame, which is fixedly connected to the output end of a cylinder. A rotating rod is rotatably mounted on the inner wall of the U-shaped frame, and a swing arm is fixedly mounted through and on the outer wall of the rotating rod. A coil spring is sleeved on the outer wall of the end of the rotating rod. A pressing spring is fixedly connected to the bottom end of the swing arm, and a bracket is fixedly connected to the bottom end of the pressing spring. A polishing wheel is rotatably mounted on the inner surface of the bracket, and a transmission wheel one is coaxially fixedly mounted on the polishing wheel. A motor is fixedly mounted on the side wall of the swing arm, and a transmission wheel two is fixedly mounted on the output end of the motor. A slider is slidably mounted on the inner side wall of the swing arm, and a tension spring is fixedly connected between the end of the slider and the inner wall of the swing arm. A transmission wheel three is fixedly and rotatably mounted on the side wall of the slider, and a transmission belt is drivingly connected to the outer surfaces of the transmission wheels one, two, and three.

[0007] Optionally, the bottom inner wall of the U-shaped frame is provided with a circular hole with a diameter larger than the outer diameter of the coil spring, and the two ends of the coil spring are respectively fixedly connected to the arc-shaped outer wall of the rotating rod and the inner wall of the end of the circular hole, so that the rotating rod always has a tendency to rotate in the opposite direction and achieve reset when it rotates.

[0008] Optionally, the second and third transmission wheels are kept flush in the horizontal direction, and the inner wall of the side of the swing arm is provided with a rectangular groove with a width adapted to the slider to ensure the relative stability of the movement of the slider and the third transmission wheel installed on the side of the slider.

[0009] Optionally, the bracket is internally provided with a deflection module to facilitate the deflection of the grinding wheel to cooperate with the rotating eyepiece surface of the sight. The deflection module includes a central shaft, which is inserted through and fixedly installed at the axis of the grinding wheel. A rotating seat is inserted through and rotatably installed on the inner wall of the bracket. A deflection groove is formed on the inner wall of the rotating seat. An arc-shaped rod is inserted through and slidably installed on the inner wall of the end of the central shaft. An arc-shaped spring is fixedly installed on the side wall of the end of the central shaft. An arc-shaped groove is formed on the inner wall of the end of the deflection groove. A convex ball is fixedly installed on the outer wall of the end of the central shaft. The convex ball slides in cooperation with the arc-shaped groove.

[0010] Optionally, the deflection groove is fan-shaped to allow the end of the central shaft to rotate within the deflection groove. The inner wall of the end of the central shaft is provided with a sliding hole that matches the arc-shaped rod, and the arc-shaped spring is sleeved on the outside of the arc-shaped rod.

[0011] Optionally, the arc groove is a semi-circular arc with high ends and low center, and the convex ball is initially located at the lowest point of the center of the arc groove. Through the setting of the arc groove and the convex ball, the central shaft will drive the grinding wheel to rise a small distance in the deflection groove, reducing the direct contact of the grinding wheel when adjusting the grinding position by rotating the eyepiece.

[0012] Optionally, a clamping module is provided between the bracket and the swing arm. The clamping module includes a rotating cylinder, which is rotatably mounted on the top inner wall of the bracket. A contact rod is fixedly mounted on the bottom inner wall of the rotating cylinder. A spiral groove is formed on the arc-shaped inner wall of the rotating cylinder. A sleeve is fixedly mounted on the bottom end face of the swing arm. A contact ball is fixedly mounted on the arc-shaped outer wall of the sleeve. A top rod is slidably mounted on the inner wall of the swing arm. A round rod is rotatably mounted on the top inner wall of the top rod. Limiting arc grooves are formed on the inner walls of both sides of the U-shaped frame. Several limiting teeth are fixedly mounted on the top arc-shaped inner surface of the limiting arc groove. A toothed ring is fixedly mounted on the end of the round rod.

[0013] Optionally, a limiting plate is provided at the bottom of the rotating cylinder, and a limiting hole adapted to the rotating cylinder is provided on the inner wall of the top of the bracket, so as to ensure that the rotating cylinder can only rotate on the inner wall of the top of the bracket and will not disengage. The outer diameter of the sleeve is adapted to the inner diameter of the rotating cylinder, and the inner diameter of the sleeve is adapted to the outer diameter of the contact rod.

[0014] Optionally, the top rod includes a bottom cylinder and a square rod at the top of the cylinder. The inner wall of the swing arm is provided with a square groove that matches the square rod, so that the top rod will not detach from the inner wall of the swing arm and will move upward when it is touched by the bottom contact rod.

[0015] Optionally, the arc-shaped outer surface of the toothed ring is provided with several tooth grooves that are adapted to the limiting tooth pattern. When the top rod is lifted upward, the toothed rings set at both ends of the round rod, in conjunction with the rotatability of the round rod and the top of the top rod, can better adapt to the deflection of the swing arm at different angles.

[0016] Compared with the prior art, the present invention provides a precision polishing device for the curved surface of a sight eyepiece, which has the following advantages: 1. This precision polishing equipment for the curved surface of a sight eyepiece, by setting up an attachment polishing module, allows the swing arm to deflect around the rotating rod as the center of rotation of the bracket, regardless of the curvature of the polishing wheel contacting the curved surface. At the same time, as the cylinder pushes downward, the outer surface of the polishing wheel remains in close contact with the outer wall of the eyepiece under the elastic force of the clamping spring. At this time, the motor is started, and under the transmission cooperation of transmission wheel two, transmission wheel three and transmission wheel one, the polishing wheel at the center of the bracket is driven to rotate at high speed, thereby polishing the curved outer surface of the eyepiece. This solves the problem of the large angle between the polishing wheel force surface and the curved eyepiece surface when polishing curved eyepieces, which easily leads to polishing defects. 2. This precision polishing equipment for the curved surface of a sight eyepiece incorporates a deflection module. During the polishing process, when the eyepiece's polishing position needs to be changed, the polishing wheel tilts and rotates slightly due to the rotatability of the central shaft within the deflection groove. This reduces the contact area between the polishing surface and the eyepiece surface, allowing for polishing to resume without needing to disengage and reposition, thus improving polishing efficiency. Simultaneously, the curved groove and convex ball design cause the central shaft to lift the polishing wheel slightly upwards within the deflection groove. This reduces direct contact between the polishing wheel and the eyepiece surface when adjusting the polishing position by rotating the eyepiece, preventing damage during position changes. This solves the problems of slow adjustment of the polishing wheel's fit during eyepiece position changes and the risk of eyepiece wear due to lateral displacement of the polishing wheel. 3. This precision polishing device for the curved surface of a sight eyepiece, equipped with a clamping module, allows the contact rod to enter the cavity inside the sleeve when the support and the swing arm approach each other. As the swing arm and the support continue to approach, the top of the contact rod contacts the bottom of the push rod, pushing the push rod upward along the inner wall of the swing arm. Furthermore, two sets of toothed rings at both ends of the round rod, combined with the rotatability of the top of the round rod and the push rod, better adapt to the different angles of the swing arm's deflection, ensuring the device's adaptability to polishing eyepieces of different curvatures. This solves the problem of maintaining a close fit while ensuring stability during continuous operation of the polishing wheel in the polishing process of curved eyepieces. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the mounting bracket, cylinder, and attachment grinding module of the present invention; Figure 3 This is a partial three-dimensional structural diagram of the attachment and polishing module of the present invention; Figure 4 This is a schematic cross-sectional view of the swing arm structure of the present invention; Figure 5 This is a schematic cross-sectional view of the support structure of the present invention; Figure 6 This is an exploded view of the rotating cylinder, sleeve, and top rod of the present invention; Figure 7 This is a schematic cross-sectional view of the rotating seat structure of the present invention; Figure 8 This is an exploded view of the rotating base and central shaft of the present invention.

[0018] In the diagram: 1. Worktable; 2. Linear motor; 3. Tray; 4. Base; 5. Mounting bracket; 6. Cylinder; 7. Grinding module attachment; 71. U-shaped frame; 72. Rotary rod; 73. Swing arm; 74. Coil spring; 75. Contact spring; 76. Bracket; 77. Grinding wheel; 78. Drive wheel one; 79. Motor; 710. Drive wheel two; 711. Slider; 712. Tension spring; 713. Drive wheel three 714. Transmission belt; 8. Deflection module; 81. Central shaft; 82. Rotating seat; 83. Deflection groove; 84. Arc rod; 85. Arc spring; 86. Arc groove; 87. Convex ball; 9. Clamping module; 91. Rotary drum; 92. Contact rod; 93. Spiral chute; 94. Sleeve; 95. Contact ball; 96. Top rod; 97. Round rod; 98. Limiting arc groove; 99. Toothed ring; 910. Limiting tooth pattern. Detailed Implementation

[0019] like Figures 1-8 As shown, the present invention provides a technical solution: a precision polishing device for the curved surface of a sight eyepiece, comprising a worktable 1, a linear motor 2 fixedly mounted on the side wall of the worktable 1, a tray 3 fixedly connected to the output end of the linear motor 2, a base 4 fixedly mounted on the upper surface of the worktable 1, a mounting frame 5 fixedly mounted on the side wall of the base 4, a cylinder 6 fixedly mounted on the upper surface of the mounting frame 5, and an attachment and polishing module 7 provided at the output end of the cylinder 6 to improve the stability of the device in polishing and adhering to the curved eyepiece surface. The attachment and polishing module 7 includes a U-shaped frame 71, a rotating rod 72, a swing arm 73, a coil spring 74, a pressing spring 75, a bracket 76, a polishing wheel 77, a first transmission wheel 78, a motor 79, a second transmission wheel 710, a slider 711, a tension spring 712, a third transmission wheel 713, and a transmission belt 714.

[0020] In one embodiment of the present invention, a U-shaped frame 71 is fixedly connected to the output end of a cylinder 6. A rotating rod 72 is rotatably mounted on the inner wall of the U-shaped frame 71. A swing arm 73 is fixedly mounted through the outer wall of the rotating rod 72. A coil spring 74 is sleeved on the outer wall of the end of the rotating rod 72. A retaining spring 75 is fixedly connected to the bottom end of the swing arm 73. A bracket 76 is fixedly connected to the bottom end of the retaining spring 75. A grinding wheel 77 is rotatably mounted on the inner surface of the bracket 76. A transmission wheel 78 is coaxially fixedly mounted on the grinding wheel 77. A motor 79 is fixedly mounted on the side wall of the swing arm 73. A transmission wheel 710 is fixedly mounted on the output end of the motor 79. A slider 711 is slidably mounted on the inner side wall of the swing arm 73. A tension spring 712 is fixedly connected between the end of the slider 711 and the inner wall of the swing arm 73. A transmission wheel 713 is fixedly rotatably mounted on the side wall of the slider 711. A transmission belt 714 is connected to the outer surfaces of the transmission wheel 78, the transmission wheel 710, and the transmission wheel 713.

[0021] Specifically, the upper surface of the tray 3 is provided with a clamping fixture to clamp and position the eyepiece of the sight from the side. The linear motor 2 is fixedly connected to the side wall of the base at the bottom of the tray 3. Meanwhile, the upper surface of the worktable 1 is provided with a sliding groove that matches the base. The base of the tray 3 is provided with a drive device to drive the tray 3 to rotate, so that the eyepiece can be rotated during the grinding process.

[0022] In this embodiment, the bottom inner wall of the U-shaped frame 71 has a circular hole with a diameter larger than the outer diameter of the coil spring 74, and the two ends of the coil spring 74 are fixedly connected to the arc-shaped outer wall of the rotating rod 72 and the inner wall of the end of the circular hole, respectively. This makes the rotating rod 72 always have a tendency to rotate in the opposite direction and achieve a reset when it rotates. Specifically, the swing arm 73 is vertical in the initial state. In addition, the center surface of the grinding wheel 77 is set to coincide with the vertical center surface of the tray 3, so that the grinding wheel 77 can move downward under the drive of the cylinder 6 until it is in contact with the arc-shaped surface of the eyepiece. At this time, the grinding wheel 77 and the eyepiece are perpendicular to each other. After the motor 79 is started, the grinding wheel 77 is driven to rotate at high speed to achieve the grinding work on the surface of the eyepiece. Since the two are perpendicular to each other, the downward drive of the grinding wheel 77 will not deflect with the eyepiece and affect the grinding effect.

[0023] Meanwhile, the housing of motor 79 is fixedly connected to the side surface of swing arm 73 via a frame, which provides sufficient installation space for transmission wheel 710. Furthermore, transmission wheel 710 and transmission wheel 713 are flush in the horizontal direction. Specifically, the inner wall of the side of swing arm 73 has a rectangular groove with a width matching that of slider 711 to ensure the relative stability of the movement of slider 711 and transmission wheel 713 mounted on the side of slider 711. Simultaneously, tension spring 712 is initially in a taut state, at which point slider 711 tends to slide towards the base 4. Specifically, due to the setting of the spring 75, the bracket 76 and the swing arm 73 are in a movable state in the vertical direction. At the same time, since the transmission belt 714 is connected to the transmission wheel 78, the transmission wheel 710 and the transmission wheel 713, even if the bracket 76 and the transmission wheel 78 move closer or further away from the swing arm 73 in the vertical direction, the transmission belt 714 is kept taut by adjusting the slider 711 and the transmission wheel 713. This ensures that the motor 79 can always drive the transmission wheel 78 and the grinding wheel 77 to rotate at high speed when it starts.

[0024] First, place the eyepiece of the sight on the tray 3. Then, control the clamping fixture on the tray 3 to position the eyepiece. Finally, start the linear motor 2 to push the tray 3 to one side of the base 4. When the tray 3 moves to the target position, start the cylinder 6 to control the U-shaped frame 71 to move downward until the surface of the grinding wheel 77 is in contact with the arc-shaped outer wall of the eyepiece. At this time, no matter what arc surface the grinding wheel 77 contacts, the swing arm 73 will deflect with the bracket 76 around the rotating rod 72 as the rotation center. At the same time, with the downward push of the cylinder 6, under the elastic force of the spring 75, the outer surface of the grinding wheel 77 remains in contact with the outer wall of the eyepiece. At this time, start the motor 79. With the transmission cooperation of the second transmission wheel 710, the third transmission wheel 713 and the first transmission wheel 78, the grinding wheel 77 at the center of the bracket 76 will rotate at high speed, thereby grinding the arc-shaped outer surface of the eyepiece.

[0025] Please see Figure 5 as well as Figures 7-8 The bracket 76 has a deflection module 8 inside, which facilitates the deflection of the grinding wheel 77 to match the rotating eyepiece surface of the sight. The deflection module 8 includes a central shaft 81, which is fixedly installed through and fixed at the axis of the grinding wheel 77. A rotating seat 82 is rotatably installed through and through the inner wall of the bracket 76. A deflection groove 83 is opened in the inner wall of the rotating seat 82. An arc-shaped rod 84 is slidably installed through and through the inner wall of the end of the central shaft 81. An arc-shaped spring 85 is fixedly installed on the side wall of the end of the central shaft 81. An arc-shaped groove 86 is opened in the inner wall of the end of the deflection groove 83. A convex ball 87 is fixedly installed on the outer wall of the end of the central shaft 81. The convex ball 87 slides in cooperation with the arc-shaped groove 86.

[0026] Specifically, the rotating seat 82 passes through the bracket 76, and the outer wall of the end of the rotating seat 82 is fixedly connected to the side wall of the transmission wheel 78. Thus, when the transmission wheel 78 outputs power outward, it can drive the rotating seat 82 and the central shaft 81 to rotate, so as to realize the high-speed rotation and grinding of the grinding wheel 77. Furthermore, the deflection groove 83 is arranged in a fan shape so that the end of the central shaft 81 can rotate in the deflection groove 83. In addition, the inner wall of the end of the central shaft 81 is provided with a sliding hole that matches the arc rod 84, and the arc spring 85 is sleeved on the outside of the arc rod 84. In the initial state, the end of the central shaft 81 is located at the center of the deflection groove 83, so that when the central shaft 81 deflects, in conjunction with the elastic force of the arc spring 85, the central shaft 81 always has a tendency to deflect in the opposite direction. At the same time, there are two sets of arc springs 85, which are mirror images of each other on both sides of the end of the central shaft 81 to ensure the balance of the force on the central shaft 81.

[0027] In addition, the arc groove 86 is a semi-circular arc with high ends and low center, and the convex ball 87 is initially located at the lowest point of the center of the arc groove 86. Therefore, when it is necessary to change the grinding position of the eyepiece during the grinding process, the drive device in the bottom base of the tray 3 is controlled to make the tray 3 rotate. At this time, due to the rotatability of the central shaft 81 in the deflection groove 83, the grinding wheel 77 will tilt and rotate to a certain extent, reducing the contact area between the grinding contact surface and the eyepiece surface. It can be ground again without disengaging and repositioning, thus improving grinding efficiency. At the same time, through the setting of the arc groove 86 and the convex ball 87, the central shaft 81 will drive the grinding wheel 77 to rise a small distance in the deflection groove 83, reducing the direct contact of the grinding wheel 77 when rotating the eyepiece to adjust the grinding position, and avoiding damage to the eyepiece surface when the grinding wheel 77 changes position.

[0028] Please see Figures 4-6 A clamping module 9 is provided between the bracket 76 and the swing arm 73. The clamping module 9 includes a rotating cylinder 91, which is rotatably mounted on the top inner wall of the bracket 76. A contact rod 92 is fixedly mounted on the bottom inner wall of the rotating cylinder 91. A spiral groove 93 is opened on the arc-shaped inner wall of the rotating cylinder 91. A sleeve 94 is fixedly mounted on the bottom end face of the swing arm 73. A contact ball 95 is fixedly mounted on the arc-shaped outer wall of the sleeve 94. A top rod 96 is slidably mounted on the inner wall of the swing arm 73. A round rod 97 is rotatably mounted on the top inner wall of the top rod 96. Limiting arc grooves 98 are opened on the inner walls of both sides of the U-shaped frame 71. Several limiting teeth 910 are fixedly mounted on the top arc-shaped inner surface of the limiting arc groove 98. A toothed ring 99 is fixedly mounted on the end of the round rod 97.

[0029] In an embodiment of the present invention, a limiting plate is provided at the bottom end of the rotating cylinder 91, and a limiting hole adapted to the rotating cylinder 91 is provided on the inner wall of the top end of the bracket 76, ensuring that the rotating cylinder 91 can only rotate on the inner wall of the top end of the bracket 76 and will not disengage. At the same time, the outer diameter of the sleeve 94 is adapted to the inner diameter of the rotating cylinder 91, and the inner diameter of the sleeve 94 is adapted to the outer diameter of the contact rod 92. When the swing arm 73 and the bracket 76 approach each other, the contact rod 92 will enter the cavity inside the sleeve 94, and as the swing arm 73 and the bracket 76 continue to approach each other, the top end of the contact rod 92 will contact the bottom end of the push rod 96 and push the push rod 96 along the swing arm. The inner wall of 73 moves upward. Specifically, the top rod 96 includes a bottom cylinder and a square rod at the top of the cylinder. The inner wall of the swing arm 73 is provided with a square groove that matches the square rod, so that the top rod 96 will not detach from the inner wall of the swing arm 73. It moves upward by being touched by the bottom contact rod 92. Furthermore, the end of the round rod 97 is set in the limiting arc groove 98. When the top rod 96 is pushed upward, the round rod 97 will eventually abut against the top inner surface of the limiting arc groove 98. By setting a number of limiting teeth 910, the end of the round rod 97 is limited and abutted, ensuring the stability of the entire bracket 76 during the grinding process.

[0030] It is worth noting that the inner walls on both sides of the swing arm 73 are provided with straight grooves whose width matches the outer diameter of the round rod 97, so that the round rod 97 can slide vertically when the push rod 96 moves upward. Furthermore, the arc-shaped outer surface of the toothed ring 99 is provided with several toothed grooves that match the limiting tooth pattern 910. When the push rod 96 is lifted upward, the two sets of toothed rings 99 set at both ends of the round rod 97, together with the rotatability of the round rod 97 and the top of the push rod 96, can better adapt to the deflection of the swing arm 73 at different angles, ensuring the device's adaptability to the polishing requirements of eyepieces with different curvatures.

[0031] In this invention, during use, the eyepiece of the sight is first placed on the tray 3. Then, the clamping fixture on the tray 3 is controlled to position the eyepiece. The linear motor 2 is started to push the tray 3 to the polishing position. At this time, the cylinder 6 is started to control the U-shaped frame 71 to move downward until the surface of the polishing wheel 77 is in contact with the arc-shaped outer wall of the eyepiece. At the same time, the bracket 76 and the swing arm 73 move closer to each other, and the contact rod 92 enters the cavity inside the sleeve 94. As the swing arm 73 and the bracket 76 continue to move closer, the top end of the contact rod 92 contacts the bottom end of the push rod 96 and pushes the push rod 96 to move upward along the inner wall of the swing arm 73. Finally, through the two sets of toothed rings 99 set at both ends of the round rod 97, the round rod moves upward. The rotatability of the top of rod 97 and top rod 96 is designed to better accommodate the deflection of the swing arm 73 at different angles. The round rod 97 restricts the position of the swing arm 73 to keep it stable after deflection. Then, the motor 79 is started. With the transmission cooperation of transmission wheel 2 710, transmission wheel 3 713 and transmission wheel 1 78, the grinding wheel 77 at the center of the bracket 76 is driven to rotate at high speed, thereby grinding the arc-shaped outer surface of the eyepiece. After grinding for a period of time, the motor 79 is turned off and the drive device in the base of the tray 3 is controlled to make the tray 3 rotate. At this time, due to the rotatability of the central shaft 81 in the deflection groove 83, the grinding wheel 77 itself will tilt and rotate to a certain extent, reducing the contact area between the grinding contact surface and the eyepiece surface.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A precision polishing device for the curved surface of a sight eyepiece, comprising a worktable (1), wherein a linear motor (2) is fixedly mounted on the side wall of the worktable (1), a tray (3) is fixedly connected to the output end of the linear motor (2), a base (4) is fixedly mounted on the upper surface of the worktable (1), a mounting bracket (5) is fixedly mounted on the side wall of the base (4), and a cylinder (6) is fixedly mounted on the upper surface of the mounting bracket (5), characterized in that: The output end of the cylinder (6) is provided with an attachment and polishing module (7) to improve the stability of the device and the surface of the curved eyepiece during polishing. The attachment and polishing module (7) includes a U-shaped frame (71), which is fixedly connected to the output end of the cylinder (6). A rotating rod (72) is rotatably mounted on the inner wall of the U-shaped frame (71). A swing arm (73) is fixedly mounted through the outer wall of the rotating rod (72). A coil spring (74) is sleeved on the outer wall of the end of the rotating rod (72). A pressing spring (75) is fixedly connected to the bottom end of the swing arm (73). A bracket (76) is fixedly connected to the bottom end of the pressing spring (75). A polishing wheel (77) is rotatably mounted on the inner surface of the bracket (76). A transmission wheel 1 (78) is coaxially fixedly installed. A motor (79) is fixedly installed on the side wall of the swing arm (73). A transmission wheel 2 (710) is fixedly installed at the output end of the motor (79). A slider (711) is slidably installed on the inner side wall of the swing arm (73). A tension spring (712) is fixedly connected between the end of the slider (711) and the inner wall of the swing arm (73). A transmission wheel 3 (713) is fixedly rotatably installed on the side wall of the slider (711). A transmission belt (714) is connected to the outer surfaces of the transmission wheel 1 (78), the transmission wheel 2 (710), and the transmission wheel 3 (713).

2. The precision polishing equipment for the curved surface of a sight eyepiece according to claim 1, characterized in that: The bottom inner wall of the U-shaped frame (71) has a circular hole with a diameter larger than the outer diameter of the coil spring (74), and the two ends of the coil spring (74) are fixedly connected to the arc-shaped outer wall of the rotating rod (72) and the inner wall of the end of the circular hole, respectively.

3. The precision polishing equipment for the curved surface of a sight eyepiece according to claim 2, characterized in that: The second transmission wheel (710) and the third transmission wheel (713) are kept flush in the horizontal direction, and the inner side wall of the swing arm (73) is provided with a rectangular groove whose width is adapted to the slider (711).

4. The precision polishing equipment for the curved surface of a sight eyepiece according to claim 3, characterized in that: The bracket (76) is provided with a deflection module (8) inside, which facilitates the deflection of the grinding wheel (77) to cooperate with the rotating eyepiece surface of the sight. The deflection module (8) includes a central shaft (81), which is fixedly installed through and fixed at the axis of the grinding wheel (77). A rotating seat (82) is rotatably installed through and through the inner wall of the bracket (76). A deflection groove (83) is opened on the inner wall of the rotating seat (82). An arc rod (84) is slidably installed through and through the inner wall of the end of the central shaft (81). An arc spring (85) is fixedly installed on the side wall of the end of the central shaft (81). An arc groove (86) is opened on the inner wall of the end of the deflection groove (83). A convex ball (87) is fixedly installed on the outer wall of the end of the central shaft (81). The convex ball (87) slides in cooperation with the arc groove (86).

5. The precision polishing equipment based on the curved surface of a sight eyepiece according to claim 4, characterized in that: The deflection groove (83) is fan-shaped, and the inner wall of the end of the central shaft (81) is provided with a sliding hole that matches the arc rod (84), and the arc spring (85) is sleeved on the outside of the arc rod (84).

6. The precision polishing equipment for the curved surface of a sight eyepiece according to claim 5, characterized in that: The arc groove (86) is a semi-circular arc with high ends and low center.

7. The precision polishing equipment for the curved surface of a sight eyepiece according to claim 6, characterized in that: A clamping module (9) is provided between the bracket (76) and the swing arm (73). The clamping module (9) includes a rotating cylinder (91). The rotating cylinder (91) is rotatably installed on the top inner wall of the bracket (76). A contact rod (92) is fixedly installed on the bottom inner wall of the rotating cylinder (91). A spiral groove (93) is opened on the arc-shaped inner wall of the rotating cylinder (91). A sleeve (94) is fixedly installed on the bottom end face of the swing arm (73). A contact ball (95) is fixedly installed on the arc-shaped outer wall of the sleeve (94). A top rod (96) is slidably installed on the inner wall of the swing arm (73). A round rod (97) is rotatably installed on the top inner wall of the top rod (96). Limiting arc grooves (98) are opened on both sides of the inner wall of the U-shaped frame (71). Several limiting teeth (910) are fixedly installed on the top arc-shaped inner surface of the limiting arc groove (98). A toothed ring (99) is fixedly installed at the end of the round rod (97).

8. The precision polishing equipment for the curved surface of a sight eyepiece according to claim 7, characterized in that: The bottom end of the rotating cylinder (91) is provided with a limiting plate, and the inner wall of the top end of the bracket (76) is provided with a limiting hole that is compatible with the rotating cylinder (91). The outer diameter of the sleeve (94) is compatible with the inner diameter of the rotating cylinder (91), and the inner diameter of the sleeve (94) is compatible with the outer diameter of the contact rod (92).

9. The precision polishing equipment for the curved surface of a sight eyepiece according to claim 8, characterized in that: The top rod (96) includes a bottom cylinder and a square rod at the top of the cylinder, and the inner wall of the swing arm (73) is provided with a square groove that matches the square rod.

10. A precision polishing device for the curved surface of a sight eyepiece according to claim 9, characterized in that: The arc-shaped outer surface of the toothed ring (99) has several tooth grooves that are adapted to the limiting tooth pattern (910).

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