Automatic grinding mechanism for triangular prism

Abstract

The utility model discloses an automatic grinding mechanism of triangular prism, including shell, jig and triaxial mobile frame, the shell is equipped with base, the base is equipped with the sink that concaves downward, the jig includes the rotary shaft that is rotatingly installed in the sink, the locating seat that is fixed at the upper end of rotary shaft and is used for placing the triangular prism, and the triaxial mobile frame is equipped with the three-axis mobile frame. The lower end of the rotating shaft extends out of the driving part of the base, a driving device connected with the driving part is arranged on the bottom wall of the base and can drive the rotating shaft to rotate, the three-axis moving frame is arranged on the upper wall, away from the water tank, of the base and provided with a driven shaft, and the driven shaft is provided with a grinding disc in a pivoted mode. The grinding disc is in a circular shape, and the three-axis moving frame can drive the grinding disc to move in the longitudinal direction, the transverse direction and the vertical direction and enable the grinding disc to abut against the upper wall of the triangular prism and deviate from the axis position of the positioning base. The three-axis moving frame drives the grinding disc to move along the periphery of the positioning base, and then grinding of the triangular prism is achieved.

Description

Technical Field

[0001] The utility model relates to the field of triangular prism processing equipment, in particular to an automatic grinding mechanism for a triangular prism. Background Art

[0002] In order to process the glass column to a predetermined optical degree, it is generally necessary to grind the triangular prism and then cut the triangular prism into a single prism. However, the existing triangular prism grinding generally adopts an active rotation grinding structure, such as Chinese patent CN202021122617.8, which adopts the active rotation of the grinding part to achieve the grinding of the predetermined surface of the triangular prism. However, this grinding method has the following problems: 1. The grinding surface is in active contact with the triangular prism, and when there is a large deviation in the axis, it is easy to scratch the predetermined surface; 2. Generally, the grinding part is moved for grinding, so when the grinding part is displaced, it is easy to cause the uniformity of the plane grinding to have a predetermined range of defects (within the tolerance, but the smaller the tolerance, the better the fineness and the better the optical effect). Utility Model Content

[0003] The main purpose of the utility model is to provide an automatic grinding mechanism for a triangular prism, which aims to adopt a passive rotation grinding method to reduce the grinding damage of the triangular prism and to achieve higher grinding uniformity and flatness.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes an automatic grinding mechanism for a triangular prism, comprising:

[0005] A shell, wherein the shell is provided with a base, and the base is provided with a water tank recessed downwards;

[0006] A fixture, the fixture comprising a rotating shaft rotatably mounted on the water tank, a positioning seat fixedly mounted on the upper end of the rotating shaft, and a slot for placing a triangular prism, the lower end of the rotating shaft extending out of the driving part of the base, the bottom wall of the base is provided with a driving device connected to the driving part, and the driving device can drive the rotating shaft to rotate;

[0007] A three-axis movable frame is arranged on the upper wall of the base away from the water tank. The three-axis movable frame is provided with a passive shaft. A grinding disc is pivotally mounted on the passive shaft. The grinding disc is circular in shape. The diameter of the grinding disc is larger than the radius of the positioning seat. The three-axis movable frame can move the grinding disc longitudinally, transversely and vertically, and make the grinding disc abut against the upper wall of the triangular prism and deviate from the axial position of the positioning seat.

[0008] In actual work, the slots of the fixture can be customized according to actual requirements to place triangular prisms of different diameters, and the upper wall of the triangular prism is exposed to facilitate grinding. In the actual grinding process, the structure of the existing active rotation of the grinding disc is changed, and the positioning seat is driven to rotate by the rotating device, thereby forcing the eccentrically set grinding disc to rotate, thereby avoiding rigid contact. At the same time, the three-axis moving frame drives the grinding disc to move along the outer periphery of the positioning seat, thereby realizing the grinding of the triangular prism. The grinding is relatively stable, avoiding scratches on the grinding disc, and effectively improving the grinding accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A three-dimensional diagram of the utility model Figure 1 ;

[0010] Figure 2 A three-dimensional diagram of the utility model Figure 2 ;

[0011] Figure 3 This is a three-dimensional schematic diagram of the utility model with the grinding disc hidden behind;

[0012] Figure 4 It is a cross-sectional view of the utility model.

[0013] In the figure, 1 is a shell, 11 is a base, 12 is a water tank, 2 is a rotating shaft, 21 is a first sleeve shaft, 22 is a second sleeve shaft, 20 is a hollow hole, 3 is a driving part, 30 is a rotating motor, 31 is an intermediate part, 4 is a passive shaft, 40 is a grinding disc, 41 is a vertical rod, 42 is an eccentric rod, 51 is a longitudinal movable frame, 52 is a transverse movable frame, 53 is a vertical movable frame, and 6 is an L-shaped bracket. DETAILED DESCRIPTION

[0014] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0016] In addition, if there are descriptions involving "first" or "second" etc. in the embodiments of the utility model, the descriptions of "first" or "second" etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0017] like Figures 1 to 4 As shown, an automatic grinding mechanism for a triangular prism comprises:

[0018] A housing 1, wherein the housing 1 is provided with a base 11, and the base 11 is provided with a water tank 12 which is recessed downwards;

[0019] A fixture, the fixture comprising a rotating shaft 2 rotatably mounted on a water tank 12, a positioning seat 13 fixedly mounted on the upper end of the rotating shaft 2, and a slot for placing a triangular prism, the lower end of the rotating shaft 2 extends out of a driving portion 3 of a base 11, and a driving device connected to the driving portion 3 is provided on the bottom wall of the base 11, and the driving device can drive the rotating shaft 2 to rotate;

[0020] A three-axis movable frame is arranged on the upper wall of the base 11 away from the water tank 12. The three-axis movable frame is provided with a passive shaft 4, and a grinding disc 40 is pivotally mounted on the passive shaft 4. The grinding disc 40 is circular in shape, and the diameter of the grinding disc 40 is larger than the radius of the positioning seat. The three-axis movable frame can move the grinding disc 40 longitudinally, transversely and vertically, and make the grinding disc 40 abut against the upper wall of the triangular prism and deviate from the axial position of the positioning seat.

[0021] In actual work, the slots of the fixture can be customized according to actual requirements to place triangular prisms of different diameters, and the upper wall of the triangular prism is exposed to facilitate grinding. In the actual grinding process, the structure of the existing active rotation of the grinding disc 40 is changed, and the positioning seat is driven to rotate by a rotating device, thereby forcing the eccentrically set grinding disc 40 to rotate, thereby avoiding rigid contact. At the same time, the three-axis moving frame drives the grinding disc 40 to move along the outer periphery of the positioning seat, thereby realizing the grinding of the triangular prism, and the grinding is relatively stable, avoiding scratches on the grinding disc 40, and effectively improving the grinding accuracy and efficiency.

[0022] Specifically, the passive shaft 4 includes a vertical rod 41 and an eccentric rod 42 extending horizontally from the lower end of the vertical rod 41. The vertical rod can be adjusted and the relative position of the eccentric rod can be adjusted. The grinding disc 40 is pivotally mounted on the eccentric rod, thereby realizing the adjustment of its relative position.

[0023] In the embodiment of the utility model, the bottom wall and the top wall of the water tank 12 are provided with a first sleeve shaft 21 and a second sleeve shaft 22, the first sleeve shaft 21 and the second sleeve shaft 22 are fixed to the wall surface of the water tank 12, and a hollow hole 20 is formed in the first sleeve shaft 21 and the second sleeve shaft 22, and the rotating shaft 2 is pivotally installed in the hollow hole 20. Through the design of the first sleeve shaft 21 and the second sleeve shaft 22, the rotation stability of the rotating shaft 2 is guaranteed, and the water tightness of the water tank 12 is also guaranteed, and the wear caused by the penetration of the wall liquid or polishing liquid into the rotating shaft 2 is prevented.

[0024] Specifically, a bearing is provided between the hollow hole 20 and the rotating shaft 2 , thereby ensuring the installation and fixation of the rotating shaft 2 .

[0025] In the embodiment of the utility model, the driving device includes a rotating motor 30 and an intermediate component 31 connected to the rotating motor 30. The intermediate component 31 is connected to the driving part 3. The intermediate component 31 is a gear set and a belt structure, thereby driving the fixture to rotate.

[0026] Specifically, the three-axis moving frame includes a longitudinal moving frame 51 provided on the base 11, a transverse moving frame 52 provided on the longitudinal moving frame 51, and a vertical moving frame 53 provided on the transverse moving frame, the vertical moving frame is provided with an L-shaped bracket, and the passive shaft 4 is provided on the L-shaped bracket 6. The L-shaped bracket further realizes the position extension of the grinding disc 40, reducing the influence of foreign matter on the three-axis moving frame.

[0027] In the embodiment of the utility model, the L-shaped bracket is also provided with a polishing liquid delivery pipeline (not shown).

[0028] Specifically, the longitudinal movable frame 51 includes a longitudinal guide rail, a longitudinal slider slidably mounted on the longitudinal guide rail, and a longitudinal lead screw pair for driving the longitudinal slider. The transverse movable frame is arranged on the longitudinal slider, and the lead screw pair is a matching structure of a ball screw, a lead screw nut and a rotating device.

[0029] In an embodiment of the utility model, the transverse moving frame includes a transverse guide rail, a transverse slider slidably mounted on the transverse guide rail, and a transverse screw pair for driving the transverse slider, and the vertical moving frame is arranged on the transverse slider.

[0030] Specifically, the vertical moving frame includes a vertical guide rail, a vertical slider slidably mounted on the vertical guide rail, and a vertical lead screw pair for driving the vertical slider, and the L-shaped bracket is arranged on the vertical slider.

[0031] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. An automatic grinding mechanism for a triangular prism, characterized in that: include: A shell, wherein the shell is provided with a base, and the base is provided with a water tank recessed downwards; A fixture, the fixture comprising a rotating shaft rotatably mounted on the water tank, a positioning seat fixedly mounted on the upper end of the rotating shaft, and a slot for placing a triangular prism, the lower end of the rotating shaft extending out of the driving part of the base, the bottom wall of the base is provided with a driving device connected to the driving part, and the driving device can drive the rotating shaft to rotate; A three-axis movable frame is arranged on the upper wall of the base away from the water tank. The three-axis movable frame is provided with a passive shaft. A grinding disc is pivotally mounted on the passive shaft. The grinding disc is circular in shape. The diameter of the grinding disc is larger than the radius of the positioning seat. The three-axis movable frame can move the grinding disc longitudinally, transversely and vertically, and make the grinding disc abut against the upper wall of the triangular prism and deviate from the axial position of the positioning seat.

2. The automatic grinding mechanism for a triangular prism according to claim 1, characterized in that: The passive shaft comprises a vertical rod and an eccentric rod horizontally extending from the lower end of the vertical rod. The vertical rod can be adjustably installed and the relative position of the eccentric rod can be adjusted. The grinding disc is pivotally installed on the eccentric rod.

3. The automatic grinding mechanism for a triangular prism according to claim 1, characterized in that: The bottom wall and the top wall of the water tank are provided with a first sleeve shaft and a second sleeve shaft, the first sleeve shaft and the second sleeve shaft are fixed to the wall surface of the water tank, and hollow holes are formed in the first sleeve shaft and the second sleeve shaft, and the rotating shaft is pivotally installed in the hollow hole.

4. The automatic grinding mechanism for a triangular prism as claimed in claim 3, characterized in that: A bearing is arranged between the hollow hole and the rotating shaft.

5. The automatic grinding mechanism for a triangular prism according to claim 1, characterized in that: The driving device includes a rotating motor and an intermediate component connected to the rotating motor. The intermediate component is connected to the driving part and is a gear set and a belt structure.

6. The automatic grinding mechanism for a triangular prism according to claim 2, characterized in that: The three-axis moving frame comprises a longitudinal moving frame arranged on a base, a transverse moving frame arranged on the longitudinal moving frame and a vertical moving frame arranged on the transverse moving frame. The vertical moving frame is provided with an L-shaped bracket, and the passive axis is arranged on the L-shaped bracket.

7. The automatic grinding mechanism for a triangular prism according to claim 6, characterized in that: The L-shaped bracket is also provided with a polishing liquid delivery pipeline.

8. The automatic grinding mechanism for a triangular prism according to claim 6, characterized in that: The longitudinal moving frame comprises a longitudinal guide rail, a longitudinal slider slidably mounted on the longitudinal guide rail, and a longitudinal lead screw pair for driving the longitudinal slider, and the transverse moving frame is arranged on the longitudinal slider.

9. The automatic grinding mechanism for a triangular prism according to claim 8, characterized in that: The transverse moving frame comprises a transverse guide rail, a transverse slider slidably mounted on the transverse guide rail, and a transverse lead screw pair for driving the transverse slider, and the vertical moving frame is arranged on the transverse slider.

10. The automatic grinding mechanism for a triangular prism according to claim 9, characterized in that: The vertical moving frame comprises a vertical guide rail, a vertical slider slidably mounted on the vertical guide rail, and a vertical lead screw pair for driving the vertical slider, and the L-shaped bracket is arranged on the vertical slider.

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