Prism fixing device for milling and grinding machine

Abstract

The utility model discloses a prism fixing device for a milling and grinding machine, relates to the technical field of prism fixing, and aims to solve the problems that most of prisms are fixed by the conventional milling and grinding machine through single air suction adsorption, the central position is determined inaccurately during fixing, multiple times of adjustment are needed, time and labor are wasted, and the milling and grinding effect is poor easily. An upper top seat is arranged at the upper end of the fixing column, an extension ring is arranged at the lower end of the fixing column, a connecting seat is arranged at the lower end of the extension ring, and the connecting seat and the extension ring are of an integrated structure; the mounting base is arranged on the upper surface of the upper top base, the mounting base and the upper top base are of an integrated structure, an adsorption hole is formed in the mounting base, and the adsorption hole penetrates through the mounting base, the upper top base, the fixing column, the extension ring and the connecting base; and the positioning frames are arranged on the periphery of the upper end face of the upper top base, the number of the positioning frames is four, and positioning blocks are arranged at the upper ends of the positioning frames.

Description

Technical Field

[0001] The utility model relates to the technical field of prism fixing, in particular to a prism fixing device for a milling machine. Background Art

[0002] Prism, a transparent object surrounded by two intersecting but non-parallel planes, used to split or disperse light beams. During processing, a milling machine is used to process the surface into the required shape;

[0003] For example, the Chinese authorized patent with announcement number CN217648123U (a fixing device, fixture and milling machine for processing optical ball covers): includes a base, one side of which forms a bearing surface adapted to the inner hemispherical surface of the ball cover blank; an exhaust component, on which an air suction end is formed, and the air suction end is used to communicate with the space between the ball cover blank and the bearing surface. The fixing device for processing optical ball covers of the present application enables the ball cover blank to be stably fixed on the base, thereby reducing the possibility of the ball cover blank falling, breaking, deflecting or breaking the edge during the milling process, thereby improving the milling yield of the ball cover blank.

[0004] However, most of the existing milling machines fix the prism through a single vacuum adsorption method. The center position is not accurately determined during fixation, and multiple adjustments are required. This is time-consuming and labor-intensive, and can easily result in poor milling results. Therefore, it does not meet existing needs. We have proposed a prism fixing device for a milling machine. Utility Model Content

[0005] The purpose of the utility model is to provide a prism fixing device for a milling machine, so as to solve the problem proposed in the above background technology that the existing milling machines mostly fix the prisms by a single vacuum adsorption, the center position is not accurately determined during fixation, multiple adjustments are required, which is time-consuming and labor-intensive, and is also prone to poor milling effect.

[0006] To achieve the above object, the utility model provides the following technical solution: a prism fixing device for a milling machine, comprising: a fixing column, the upper end of which is provided with an upper top seat, the lower end of which is provided with an extension ring, the lower end of which is provided with a connecting seat, and the connecting seat and the extending ring are an integrated structure;

[0007] Also includes:

[0008] A mounting seat, which is arranged on the upper surface of the upper top seat, and the mounting seat and the upper top seat are an integrated structure, and an adsorption hole is arranged inside the mounting seat, and the adsorption hole runs through the mounting seat, the upper top seat, the fixing column, the extension ring and the connecting seat;

[0009] A positioning frame is arranged around the upper end surface of the upper top seat, and there are four positioning frames. A positioning block is arranged at the upper end of the positioning frame, a moving column is arranged at the lower surface of the positioning block, and a compression spring is arranged at one end of the moving column.

[0010] Preferably, a movable groove is provided on the upper surface of the positioning frame, and the movable column moves along the movable groove, and an installation groove is provided inside the positioning frame, and the compression spring moves along the installation groove, and the installation groove is interconnected with the movable groove.

[0011] Preferably, a rotating sleeve is provided on the outside of the upper top seat, an external thread is provided on the outer surface of the upper top seat, and the rotating sleeve is rotatably connected to the upper top seat via the external thread.

[0012] Preferably, a first limiting outer ring is provided on the outer wall of the lower end of the upper seat, and the first limiting outer ring and the upper seat are an integral structure.

[0013] Preferably, a rotating connection piece is provided at one end of the positioning frame, and the positioning frame is rotatably connected to the upper seat via the rotating connection piece.

[0014] Preferably, a second limiting outer ring is provided at the center of the outer wall of the extension ring, and the second limiting outer ring and the extension ring are an integral structure.

[0015] Preferably, a limiting sleeve is arranged outside the extension ring, a connecting opening is arranged at the center of the limiting sleeve, and the connecting opening passes through the limiting sleeve, an inner connecting ring seat is arranged on the upper surface of the connecting opening, and a limiting cavity is arranged between the inner connecting ring seat and the inner wall of the limiting sleeve.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model arranges positioning frames around the edge of the upper surface of the upper top seat, and the positioning frames rotate with the upper top seat through a rotating connecting piece, and the rotating sleeve is rotated. The rotating sleeve is rotatably connected with the upper top seat through an external thread, so as to move upward, and four positioning frames are squeezed from bottom to top. One end of the positioning frame is rotated through the rotating connecting piece until the positioning frame and the upper top seat are kept horizontal and then stop rotating. Then, the prism to be processed is placed on the mounting seat, and the four positioning blocks are squeezed. Relying on the resilience of the compression spring, the four positioning blocks squeeze the prism, so that the center of the prism is aligned with the center of the mounting seat, so as to solve the problem that most of the existing milling machines fix the prism by a single vacuum adsorption, the center position is not accurately determined when fixing, and multiple adjustments are required, which is time-consuming and labor-intensive, and is also prone to poor milling effect.

[0018] 2. By setting a limit sleeve on the outside of the extension ring, and the outer surface of the extension ring has a thread, the limit sleeve is rotated, and the limit sleeve moves upward, relying on the second limit outer ring to achieve a rotation limit effect. At this time, the lower ends of the four positioning frames are wrapped by the limit sleeve, so that when the fixed column is rotated, it will not expand to the surroundings due to centrifugal force, thereby improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall front view structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the positioning frame structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the limit sleeve structure of the utility model;

[0023] In the figure: 1. fixed column; 2. upper seat; 3. mounting seat; 4. connecting seat; 5. adsorption hole; 6. positioning frame; 7. movable groove; 8. positioning block; 9. movable column; 10. first limiting outer ring; 11. rotating sleeve; 12. external thread; 13. second limiting outer ring; 14. limiting sleeve; 15. extension ring; 16. mounting groove; 17. compression spring; 18. rotating connecting piece; 19. connecting opening; 20. inner connecting ring seat; 21. limiting cavity. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a prism fixing device for a milling machine, comprising: a fixing column 1, an upper top seat 2 is arranged at the upper end of the fixing column 1, an extension ring 15 is arranged at the lower end of the fixing column 1, a connecting seat 4 is arranged at the lower end of the extension ring 15, and the connecting seat 4 and the extension ring 15 are an integrated structure;

[0026] Also includes:

[0027] The mounting seat 3 is arranged on the upper surface of the upper seat 2, and the mounting seat 3 and the upper seat 2 are an integral structure, and an adsorption hole 5 is arranged inside the mounting seat 3, and the adsorption hole 5 passes through the mounting seat 3, the upper seat 2, the fixing column 1, the extension ring 15 and the connecting seat 4;

[0028] The positioning frame 6 is arranged around the upper end surface of the upper top seat 2, and there are four positioning frames 6. A positioning block 8 is arranged at the upper end of the positioning frame 6, and a moving column 9 is arranged on the lower surface of the positioning block 8. A compression spring 17 is arranged at one end of the moving column 9.

[0029] Place the prism to be processed on the mounting seat 3, squeeze the four positioning blocks 8, and rely on the resilience of the compression spring 17 to squeeze the prism so that the center of the prism is aligned with the center of the mounting seat 3. There is no need to adjust back and forth, saving time and effort.

[0030] See also Figure 2 , 3 A moving groove 7 is provided on the upper surface of the positioning frame 6, and the moving column 9 moves along the moving groove 7. A mounting groove 16 is provided inside the positioning frame 6, and the compression spring 17 moves along the mounting groove 16. The mounting groove 16 is interconnected with the moving groove 7 to facilitate the movement of the moving column 9 and the compression spring 17.

[0031] See also Figure 1 , 2 A rotating sleeve 11 is provided on the outside of the upper top seat 2, and an external thread 12 is provided on the outer surface of the upper top seat 2, and the rotating sleeve 11 is rotatably connected to the upper top seat 2 through the external thread 12. The rotating sleeve 11 is rotated, and the rotating sleeve 11 is rotatably connected to the upper top seat 2 through the external thread 12, so that it moves upward, squeezing the four positioning frames 6 from bottom to top, and one end of the positioning frame 6 is rotated through the rotating connecting piece 18. The rotating sleeve 11 is rotated downward, and the four positioning frames 6 lose their supporting force and rotate to their initial positions.

[0032] See also Figure 1 , 2 A first limiting outer ring 10 is provided on the outer wall of the lower end of the upper top seat 2, and the first limiting outer ring 10 and the upper top seat 2 are an integral structure, which supports the rotating sleeve 11 to prevent it from falling.

[0033] See also Figure 1 , 3 A rotating connection member 18 is provided at one end of the positioning frame 6, and the positioning frame 6 is rotatably connected to the upper top seat 2 through the rotating connection member 18. The rotating connection member 18 is mainly composed of a fixed frame, a rotating frame and a rotating shaft. The rotating frame and the rotating shaft are fixed to the positioning frame 6, and the fixed frame is fixed to the upper top seat 2, thereby realizing the rotation of the positioning frame 6.

[0034] See also Figure 1A second limiting outer ring 13 is provided at the center of the outer wall of the extension ring 15, and the second limiting outer ring 13 and the extension ring 15 are an integrated structure. The limiting sleeve 14 is rotated, and the limiting sleeve 14 moves upward, relying on the second limiting outer ring 13 to achieve a rotation limiting effect. At this time, the lower ends of the four positioning frames 6 are wrapped by the limiting sleeve 14, so that when the fixed column 1 is rotated, the centrifugal force will not cause the effect of expanding to the surroundings, thereby improving stability.

[0035] See also Figure 1 , 4 A limiting sleeve 14 is arranged outside the extension ring 15, a connecting opening 19 is arranged at the center of the limiting sleeve 14, and the connecting opening 19 passes through the limiting sleeve 14, an inner connecting ring seat 20 is arranged on the upper surface of the connecting opening 19, and a limiting cavity 21 is arranged between the inner connecting ring seat 20 and the inner wall of the limiting sleeve 14, through which one end of the positioning frame 6 can enter to achieve a limiting effect.

[0036] Working principle: When in use, rotate the rotating sleeve 11, and the rotating sleeve 11 is rotatably connected to the upper top seat 2 through the external thread 12, so as to move upward, and squeeze the four positioning frames 6 from bottom to top. One end of the positioning frame 6 is rotated through the rotating connecting piece 18 until the positioning frame 6 and the upper top seat 2 are kept horizontal and then stop rotating. Then put the prism to be processed on the mounting seat 3, squeeze the four positioning blocks 8, and rely on the resilience of the compression spring 17. The four positioning blocks 8 squeeze the prism so that the center of the prism is aligned with the center of the mounting seat 3, and then use the adsorption hole 5 to connect the existing exhaust device to perform exhaust adsorption and fixation. This is a commonly used fixing method for existing milling machines. After fixing, rotate the rotating sleeve 11 downward, the four positioning frames 6 lose their supporting force and rotate to the initial position, and then rotate the limit sleeve 14. The limit sleeve 14 moves upward, relying on the second limit outer ring 13 to play a rotation limiting effect. At this time, the lower ends of the four positioning frames 6 are wrapped by the limit sleeve 14, so that when the fixed column 1 is rotated, the centrifugal force will not cause the effect of spreading to the surroundings, thereby improving stability.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A prism fixing device for a milling machine, comprising a fixing column (1), wherein an upper top seat (2) is arranged at the upper end of the fixing column (1), an extension ring (15) is arranged at the lower end of the fixing column (1), and a connecting seat (4) is arranged at the lower end of the extension ring (15), and the connecting seat (4) and the extension ring (15) are an integral structure; Features: Also includes: A mounting seat (3) is arranged on the upper surface of the upper seat (2), and the mounting seat (3) and the upper seat (2) are an integral structure, and an adsorption hole (5) is arranged inside the mounting seat (3), and the adsorption hole (5) passes through the mounting seat (3), the upper seat (2), the fixing column (1), the extension ring (15) and the connecting seat (4); A positioning frame (6) is arranged around the upper end surface of the upper top seat (2), and four positioning frames (6) are provided. A positioning block (8) is provided at the upper end of the positioning frame (6), a moving column (9) is provided on the lower surface of the positioning block (8), and a compression spring (17) is provided at one end of the moving column (9).

2. A prism fixing device for a milling machine according to claim 1, characterized in that: The upper surface of the positioning frame (6) is provided with a moving groove (7), and the moving column (9) moves along the moving groove (7); the interior of the positioning frame (6) is provided with a mounting groove (16), and the compression spring (17) moves along the mounting groove (16); the mounting groove (16) and the moving groove (7) are interconnected.

3. The prism fixing device for a milling machine according to claim 1, characterized in that: A rotating sleeve (11) is arranged outside the upper seat (2), an external thread (12) is arranged on the outer surface of the upper seat (2), and the rotating sleeve (11) is rotatably connected to the upper seat (2) via the external thread (12).

4. The prism fixing device for a milling machine according to claim 1, characterized in that: A first limiting outer ring (10) is provided on the outer wall of the lower end of the upper top seat (2), and the first limiting outer ring (10) and the upper top seat (2) are an integral structure.

5. The prism fixing device for a milling machine according to claim 1, characterized in that: A rotating connection piece (18) is provided at one end of the positioning frame (6), and the positioning frame (6) is rotatably connected to the upper seat (2) via the rotating connection piece (18).

6. The prism fixing device for a milling machine according to claim 1, characterized in that: A second limiting outer ring (13) is provided at the centre of the outer wall of the extension ring (15), and the second limiting outer ring (13) and the extension ring (15) are an integral structure.

7. The prism fixing device for a milling machine according to claim 1, characterized in that: A limiting sleeve (14) is arranged outside the extension ring (15), a connecting opening (19) is arranged at the center of the limiting sleeve (14), and the connecting opening (19) passes through the limiting sleeve (14), an inner connecting ring seat (20) is arranged on the upper surface of the connecting opening (19), and a limiting cavity (21) is arranged between the inner connecting ring seat (20) and the inner wall of the limiting sleeve (14).

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