Positioning clamp for spherical mirror production

Abstract

The utility model relates to the technical field of positioning clamps, in particular to a positioning clamp for spherical mirror production, which comprises a shell and a straight rod, the straight rod is fixedly connected to the inner surface of the shell, a clamping device is arranged in the shell, an auxiliary positioning device is arranged in the shell, and a plurality of groups of slide ways are arranged on the surface of the shell. According to the positioning clamp for spherical mirror production, through cooperation of the clamping devices and the clamping plates, a spherical mirror is placed among the three clamping plates, the rotating rods on the two sides can pull the triangular block to move downwards, the triangular block can drive the three clamping plates to move at the same time, the clamping plates are clamped through the sliding ways, and therefore the spherical mirror production efficiency is improved. The three sets of clamping plates move towards the center, the three sets of clamping plates can clamp the spherical mirror, the three sets of clamping plates move at the same time, centering clamping can be conducted on the spherical mirror, and the clamping position is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of positioning fixtures, in particular to a positioning fixture for producing spherical mirrors. Background Art

[0002] In each processing process of mechanical manufacturing, the workpiece must be in a suitable and correct position in the process system to ensure processing quality and improve production efficiency. The various process equipment used to put the workpiece in a suitable and correct position are collectively referred to as fixtures.

[0003] For example, the application publication number "CN112171347A" is a positioning fixture for processing spherical parts. The locking sleeve is threadedly mounted on the outside of the positioning sleeve to achieve the positioning of the processed spherical part. Due to the role of the positioning pin and the positioning groove, the positioning sleeve will not rotate during the screwing process of the locking sleeve, thus avoiding damage to the outer spherical surface of the processed spherical part. However, the device only clamps and fixes the spherical mirror by pressing, so that when the device clamps and positions the spherical mirror, the clamping position of the device cannot be guaranteed. After the device is clamped and positioned, the device is not convenient for processing, which reduces the practicality of the device. At the same time, the device cannot guarantee the stability of the clamping, so that when the clamping is unstable, there will be certain safety hazards. Utility Model Content

[0004] The utility model aims to solve the problem that the clamping position of the device cannot be guaranteed and there are potential safety hazards, and proposes a positioning fixture for spherical mirror production.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning fixture for spherical mirror production is designed, including an outer shell and a straight rod, the inner surface of the outer shell is fixedly connected to the straight rod, the inner part of the outer shell is provided with a clamping device, the inner part of the outer shell is provided with an auxiliary positioning device, a plurality of groups of slideways are provided on the surface of the outer shell, the outer shell is slidably engaged with a plurality of groups of clamping plates through the plurality of groups of slideways provided on the surface, the surfaces of the plurality of groups of clamping plates are provided with rubber pads, and one end of the plurality of groups of clamping plates passes through the surface of the outer shell.

[0007] Preferably, the clamping device includes a fixed box and a first motor, the fixed box is fixedly connected to the surface of the outer shell, the inner surface of the fixed box is fixedly connected to the first motor through a bracket, the output shaft of the first motor is fixedly connected to one end of a stud through a reduction gear box, both ends of the stud are rotatably connected to the inner surface of the outer shell through bearings, the surface of the stud is threadedly connected to threaded holes opened on the surfaces of two groups of threaded blocks, the threaded blocks on both sides are movably connected to one end of a rotating rod through a rotating shaft, one end of the rotating rod on both sides is movably connected to the surface of the connecting block through a rotating shaft, and the surface of the connecting block on both sides is fixedly connected to the surface of the triangular block.

[0008] Preferably, the auxiliary positioning device includes a support box and a second motor, the support box is fixedly connected to the inner surface of the outer shell, the inner surface of the support box is fixedly connected to the second motor through a bracket, the output shaft of the second motor is fixedly connected to a first rotating shaft rod, one end of the first rotating shaft rod is movably connected to one end of the second rotating shaft rod through a rotating shaft, one end of the second rotating shaft rod is movably connected to a protruding part of the surface of the connecting arm through a rotating shaft, one end of the connecting arm passes through the surface of the support box, the inner surface of the connecting arm is fixedly connected to a spring, one end of the spring is fixedly connected to the surface of the clamping block, and the surface of the clamping block is slidably clamped with a slideway provided on the surface of the connecting arm.

[0009] Preferably, the surface of the straight rod is slidably engaged with a through hole provided on the surface of the triangular block, and the triangular block is slidably engaged with one end of multiple groups of clamping plates through multiple groups of slideways provided on the surface.

[0010] Preferably, a groove plate is fixedly connected to the inner surface of the support box, a groove is provided on the surface of the groove plate, and the groove plate is slidably connected to the telescopic end of the hydraulic cylinder via a through hole provided on the surface.

[0011] Preferably, the hydraulic cylinder is fixedly connected to the protruding part of the inner surface of the support box, a bending block is fixedly connected to the inner surface of the support box, the surface of the bending block is slidably engaged with a slideway provided on the surface of the connecting arm, and one end of the connecting arm passes through the surface of the support box and is fixedly connected to the surface of the rubber plate.

[0012] The utility model proposes a positioning fixture for spherical mirror production, which has the beneficial effects of: through the cooperation of the clamping device and the clamping plate, the spherical mirror is placed between the three groups of clamping plates, the output shaft of the first motor rotates to drive the double-headed stud to rotate, so that the rotating rods on both sides can pull the triangular block to move downward, so that the triangular block can simultaneously drive the three groups of clamping plates to move, so that the three groups of clamping plates move toward the center, so that the three groups of clamping plates can clamp the spherical mirror, and through the simultaneous movement of the three groups of clamping plates, the spherical mirror can be clamped for centering to ensure the clamping position.

[0013] Through the cooperation of the auxiliary positioning device and the shell, the output shaft of the second motor rotates to drive the first rotating shaft rod to rotate, so that the first rotating shaft rod can drive the second rotating shaft rod to move, and under the action of the first rotating shaft rod and the second rotating shaft rod, the connecting arm can be pushed to move downward, so that the connecting arm can drive the clamping block to move, and at the same time, the rubber plate can be pressed against the surface of the threaded block on one side, so that when an unexpected situation occurs, the position of the three groups of clamping plates can still be stabilized, and the transmission assembly can be auxiliary limited, so that when an unexpected situation occurs, the stability of the device can still be guaranteed, thereby improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A top view of

[0016] Figure 3 for Figure 1 A front cross-sectional view of

[0017] Figure 4 for Figure 1 A partial top view of a cross-sectional view;

[0018] Figure 5 It is the top view of the triangle block;

[0019] Figure 6 for Figure 3 Schematic diagram of part A.

[0020] In the figure: 1, housing, 2, clamping device, 201, fixing box, 202, first motor, 203, threaded block, 204, rotating rod, 205, connecting block, 206, triangular block, 207, stud, 3, clamping plate, 4, straight rod, 5, auxiliary positioning device, 501, supporting box, 502, second motor, 503, first rotating shaft rod, 504, second rotating shaft rod, 505, connecting arm, 506, spring, 507, clamping block, 6, bending block, 7, groove plate, 8, hydraulic cylinder, 9, rubber plate. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Refer to the attached Figure 1-6In the present embodiment, a positioning fixture for producing spherical mirrors comprises a shell 1 and a straight rod 4, the inner surface of the shell 1 is fixedly connected with the straight rod 4, a clamping device 2 is arranged inside the shell 1, an auxiliary positioning device 5 is arranged inside the shell 1, a plurality of slideways are arranged on the surface of the shell 1, the shell 1 is slidably engaged with a plurality of clamping plates 3 through the plurality of slideways arranged on the surface, the three clamping plates 3 can perform centering clamping on the spherical mirror, the surfaces of the plurality of clamping plates 3 are all provided with rubber pads, the rubber pads can prevent damage to the workpiece during clamping, one end of the plurality of clamping plates 3 passes through the surface of the shell 1, the surface of the straight rod 4 is slidably engaged with the through hole arranged on the surface of the triangular block 206, the straight rod 4 can fix the position and movement track of the triangular block 206, the triangular block 206 is slidably engaged with one end of the plurality of clamping plates 3 through the plurality of slideways arranged on the surface, and the movement of the triangular block 206 can drive the three groups The clamping plate 3 moves, and a groove plate 7 is fixedly connected to the inner surface of the support box 501. A groove is provided on the surface of the groove plate 7. The groove plate 7 can be clamped with the surface of the clamping block 507 through the groove on the surface. The groove plate 7 is slidably connected to the telescopic end of the hydraulic cylinder 8 through the through hole provided on the surface. The hydraulic cylinder 8 can meet the working needs according to actual needs. The hydraulic cylinder 8 can push the clamping block 507 back to its original position. The hydraulic cylinder 8 is fixedly connected to the protruding part of the inner surface of the support box 501. A bending block 6 is fixedly connected to the inner surface of the support box 501. The bending block 6 can fix the position and movement track of the connecting arm 505. The surface of the bending block 6 is slidably clamped with the slideway provided on the surface of the connecting arm 505. One end of the connecting arm 505 passes through the surface of the support box 501 and is fixedly connected to the surface of the rubber plate 9. The connecting arm 505 can drive the rubber plate 9 to move synchronously.

[0023] Refer to the attached Figure 1-6 The clamping device 2 includes a fixed box 201 and a first motor 202. The fixed box 201 is fixedly connected to the surface of the housing 1. The inner surface of the fixed box 201 is fixedly connected to the first motor 202 through a bracket. The first motor 202 can meet the working needs according to actual needs. The first motor 202 can drive the stud 207 to rotate. The output shaft of the first motor 202 is fixedly connected to one end of the stud 207 through a reduction box. Both ends of the stud 207 are rotatably connected to the inner surface of the housing 1 through bearings. The surface of the stud 207 is connected to the surfaces of the two sets of threaded blocks 203. The threaded holes are threadedly connected, and the studs 207 can drive the threaded blocks 203 on both sides to move synchronously. The threaded blocks 203 on both sides are movably connected to one end of the rotating rod 204 through a rotating shaft. The threaded blocks 203 on both sides can drive the rotating rods 204 on both sides to move, so that the rotating rods 204 on both sides can drive the connecting blocks 205 on both sides to rise and fall. One end of the rotating rods 204 on both sides is movably connected to the surface of the connecting block 205 through a rotating shaft. The connecting blocks 205 on both sides can drive the triangular blocks 206 to move synchronously, and the surfaces of the connecting blocks 205 on both sides are fixedly connected to the surfaces of the triangular blocks 206.

[0024] Refer to the attached Figure 3 and 6 : The auxiliary positioning device 5 includes a support box 501 and a second motor 502. The support box 501 is fixedly connected to the inner surface of the shell 1. The inner surface of the support box 501 is fixedly connected to the second motor 502 through a bracket. The second motor 502 can meet the working needs according to actual needs. The output shaft of the second motor 502 is fixedly connected to the first rotating shaft rod 503. The second motor 502 can drive the first rotating shaft rod 503 to rotate. One end of the first rotating shaft rod 503 is movably connected to one end of the second rotating shaft rod 504 through a rotating shaft. The first rotating shaft rod 503 can drive the second rotating shaft rod 504 to move. The second rotating shaft rod 504 is The first end is movably connected to the protruding part of the surface of the connecting arm 505 through a rotating shaft, and the second rotating shaft rod 503 and the second rotating shaft rod 504 can push the connecting arm 505 to move. One end of the connecting arm 505 passes through the surface of the supporting box 501, and the inner surface of the connecting arm 505 is fixedly connected with a spring 506. The elastic coefficient of the spring 506 can be determined according to actual needs to meet the working needs. The spring 506 can allow the clamping block 507 to have movement space. One end of the spring 506 is fixedly connected to the surface of the clamping block 507. The surface of the clamping block 507 is slidably clamped with the slideway opened on the surface of the connecting arm 505 to fix the position and movement track of the clamping block 507.

[0025] Working principle:

[0026] When clamping the spherical mirror, place the spherical mirror between the three groups of clamping plates 3, connect the external power supply of the first motor 202, start the output shaft of the first motor 202 to rotate and drive the stud 207 to rotate, so that the stud 207 can drive the threaded blocks 203 on both sides to move synchronously, so that the threaded blocks 203 on both sides can drive the rotating rods 204 on both sides to move synchronously, so that the rotating rods 204 on both sides can pull the rotating rods 204 on both sides to move, so that the rotating rods 204 on both sides can pull the triangular block 206 to move downward, so that the triangular block 306 can simultaneously drive the three groups of clamping plates 3 to move, so that the three groups of clamping plates 3 move toward the center, so that the three groups of clamping plates 3 can clamp the spherical mirror.

[0027] Assisted fixation process:

[0028] The external power supply of the second motor 502 is turned on, and the output shaft of the second motor 502 is started to rotate to drive the first rotating shaft rod 503 to rotate, so that the first rotating shaft rod 503 can drive the second rotating shaft rod 504 to move. Under the action of the first rotating shaft rod 503 and the second rotating shaft rod 504, the connecting arm 505 can be pushed to move downward, so that the connecting arm 505 can drive the clamping block 507 to move, and at the same time, the rubber plate 9 can be tightly pressed against the surface of the threaded block 203 on one side. At the same time, the clamping block 507 is clamped with the groove on the surface of the groove plate 7, so that the position of the rubber plate 9 can be fixed, so that the device can still stabilize the position of the three groups of clamping plates 3 when an unexpected situation occurs. The external power supply of the hydraulic cylinder 8 is turned on, and the telescopic end of the hydraulic cylinder 8 is started to extend to push the clamping block 507 to move out of the groove plate 7, so that the rubber plate 9 can no longer be tightly pressed against the surface of the threaded block 203 on one side.

[0029] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A positioning fixture for producing a spherical mirror, comprising a housing (1) and a straight rod (4), wherein the inner surface of the housing (1) is fixedly connected to the straight rod (4), and characterized in that: A clamping device (2) is provided inside the shell (1), an auxiliary positioning device (5) is provided inside the shell (1), a plurality of slideways are provided on the surface of the shell (1), the shell (1) is slidably engaged with a plurality of clamping plates (3) through the plurality of slideways provided on the surface, a rubber pad is provided on the surface of the plurality of clamping plates (3), one end of the plurality of clamping plates (3) passes through the surface of the shell (1), the clamping device (2) comprises a fixing box (201) and a first motor (202), the fixing box (201) is fixed to the surface of the shell (1), The inner surface of the fixed box (201) is fixedly connected to a first motor (202) via a bracket, the output shaft of the first motor (202) is fixedly connected to one end of a stud (207) via a reduction box, both ends of the stud (207) are rotatably connected to the inner surface of the housing (1) via bearings, the surface of the stud (207) is threadedly connected to threaded holes provided on the surfaces of two groups of threaded blocks (203), the threaded blocks (203) on both sides are movably connected to one end of a rotating rod (204) via a rotating shaft, and the rotating rods (204) on both sides are rotatably connected to one end of a rotating rod (204). 04) one end is movably connected to the surface of the connection block (205) through a rotating shaft, and the surfaces of the connection blocks (205) on both sides are fixedly connected to the surfaces of the triangular blocks (206), the auxiliary positioning device (5) includes a support box (501) and a second motor (502), the support box (501) is fixedly connected to the inner surface of the housing (1), the inner surface of the support box (501) is fixedly connected to the second motor (502) through a bracket, the output shaft of the second motor (502) is fixedly connected to the first rotating shaft rod (503), the first One end of the rotating shaft rod (503) is movably connected to one end of the second rotating shaft rod (504) through the rotating shaft, and one end of the second rotating shaft rod (504) is movably connected to a protruding portion of the surface of the connecting arm (505) through the rotating shaft. One end of the connecting arm (505) penetrates the surface of the supporting box (501), and a spring (506) is fixedly connected to the inner surface of the connecting arm (505). One end of the spring (506) is fixedly connected to the surface of a clamping block (507), and the surface of the clamping block (507) is slidably clamped to a slideway provided on the surface of the connecting arm (505).

2. A positioning fixture for spherical mirror production according to claim 1, characterized in that: The surface of the straight rod (4) is slidably engaged with a through hole provided on the surface of the triangular block (206), and the triangular block (206) is slidably engaged with one end of multiple groups of clamping plates (3) via multiple groups of slideways provided on the surface.

3. A positioning fixture for spherical mirror production according to claim 2, characterized in that: The inner surface of the support box (501) is fixedly connected to a groove plate (7), the surface of the groove plate (7) is provided with a groove, and the groove plate (7) is slidably connected to the telescopic end of the hydraulic cylinder (8) via a through hole provided on the surface.

4. A positioning fixture for producing a spherical mirror according to claim 3, characterized in that: The hydraulic cylinder (8) is fixedly connected to a protruding portion of the inner surface of the support box (501); a bending block (6) is fixedly connected to the inner surface of the support box (501); the surface of the bending block (6) is slidably engaged with a slideway provided on the surface of the connecting arm (505); one end of the connecting arm (505) penetrates the surface of the support box (501) and is fixedly connected to the surface of the rubber plate (9).

Images