Positioning clamp

Abstract

The utility model relates to the technical field of positioning clamps, in particular to a positioning clamp which comprises a straight cylinder, the inner wall of one end of the straight cylinder is rotatably connected with a threaded rod through a bearing, one end of the threaded rod is fixedly connected with the output end of a motor, one end of the motor is fixedly connected with one end of the straight cylinder, and the outer wall of the threaded rod is in threaded connection with a block. The upper portion of the outer wall of the block body is in clearance fit with a through groove in one side of the top of a straight cylinder. Through cooperation of a straight cylinder, a threaded rod, a block body, a motor, a vertical plate and a measuring structure, when the device is used, the motor drives the threaded rod to rotate, the threaded rod drives the block body to move left and right, and the block body drives the vertical plate on one side to move left and right, so that the calibrated scale moves left and right; the distance between the clamping plates on the two sides can be known, a worker can accurately adjust the distance between the clamping plates on the two sides conveniently, reciprocating adjustment of the worker is not needed, and operation is easy.

Description

Technical Field

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

[0002] In the process of mechanical parts processing, in order to increase the accuracy of processing, the mechanical parts need to be kept in a stable state during the processing, and keeping the parts in a stable state requires the use of relevant positioning fixtures to achieve this.

[0003] There is a positioning fixture (application number: 202321978349.3) that can use a driving structure to drive the linkage mechanism to operate, so that the processing angle of the mechanical parts can be changed without re-fixing. The above problem still exists. When processing the workpiece, it is often necessary to clamp and position the workpiece, and then a positioning fixture will be used. Due to different production requirements, it is often necessary to process workpieces of different sizes, and then it is necessary to adjust the distance between the two side clamps. It is not convenient for the staff to accurately adjust the distance between the two side clamps, and the staff needs to adjust reciprocatingly, which is inconvenient to operate. When the workpiece is fixed, the shape of the workpiece will also be different. In the above device, the clamps on both sides can only be on the same horizontal line, which is not convenient for adjusting the clamps on both sides to different heights, and then it is not convenient to clamp and position the workpiece with a bend, and the scope of application is small. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that it is inconvenient for workers to accurately adjust the distance between the clamps on both sides, and the workers need to make reciprocating adjustments, which is inconvenient to operate, and it is not convenient to adjust the clamps on both sides to different heights, and it is not convenient to clamp and position the workpiece with a bend, and the scope of application is small. A positioning clamp is proposed to solve the shortcomings of the prior art that it is inconvenient for workers to accurately adjust the distance between the clamps on both sides, and the workers need to make reciprocating adjustments, which is inconvenient to operate, and it is not convenient to adjust the clamps on both sides to different heights, and it is not convenient to clamp and position the workpiece with a bend, and the scope of application is small.

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

[0006] A positioning fixture is designed, including a straight cylinder, wherein the inner wall of one end of the straight cylinder is rotatably connected to a threaded rod through a bearing, one end of the threaded rod is fixedly connected to the output end of the motor, one end of the motor is fixedly connected to one end of the straight cylinder, the outer wall of the threaded rod is threadedly connected to a block, the upper part of the outer wall of the block is gap-matched with a through groove on one side of the top of the straight cylinder, two vertical plates are provided on the upper part of the block, the bottom of the vertical plate on one side is fixedly connected to the top of the block, and the bottom of the vertical plate on the other side is fixedly connected to one side of the top of the straight cylinder, a clamping plate is provided on one side of the vertical plate, a shell is fixedly connected to the upper part of one side of the vertical plate, a measuring structure is provided on one side of the vertical plate, and an adjustment structure is provided on one side of the shell.

[0007] Preferably, the measuring structure includes a scale, an inner wall on one side of the scale is threadedly connected to the inner wall below the front end surface of the vertical plate on one side by bolts, an inclined block is provided below the scale, a straight block is fixedly connected to the bottom of the inclined block, and the rear end of the straight block is fixedly connected to the bottom of the front end surface of the vertical plate on the other side.

[0008] Preferably, a sliding rod is fixedly connected to the upper inner wall of the vertical plate.

[0009] Preferably, a square rod is fixedly connected to the top of the upper clamping plate, and the lower part of the outer wall of the square rod is gap-matched with the bottom inner wall of the vertical tube.

[0010] Preferably, a screw rod is threadedly connected to the top inner wall of the square rod, and the upper part of the outer wall of the screw rod is rotatably connected to the top inner wall of the vertical cylinder through a bearing.

[0011] Preferably, the adjusting structure includes a cross bar, one side of the outer wall of the cross bar is clearance-matched with the inner wall of one end of the shell, one end of the cross bar is fixedly connected to a square plate, the outer side of one end of the square plate is fixedly connected to a spring, one end of the spring is fixedly connected to the outer side of one end of the inner wall of the shell, the other end of the square plate is fixedly connected to an insertion rod, the outer wall gap of the insertion rod is fitted with a cross block, one side of the outer wall of the cross block is clearance-matched with the upper inner wall of the vertical plate, one side of the inner wall of the cross block is slidably engaged with the outer wall of the sliding rod, one end of the cross block is fixedly connected to a plate body, the lower side of the plate body is fixedly connected to one end of the lower clamping plate, and the upper side of the plate body is fixedly connected to one end of the vertical cylinder.

[0012] The positioning fixture proposed by the utility model has the beneficial effect that: through the cooperation of the straight tube, the threaded rod, the block, the motor, the vertical plate and the measuring structure, when the device is in use, the motor can drive the threaded rod to rotate, the threaded rod drives the block to move left and right, the block drives the vertical plate on one side to move left and right, and then the scale moves left and right, and the distance between the two side clamps can be understood according to the position of the inclined block pointing to the scale, so that the staff can accurately adjust the distance between the two side clamps without the need for reciprocating adjustment, and the operation is simple;

[0013] Through the coordination of the vertical plate, the outer shell, the sliding rod, the clamping plate and the adjustment structure, the device can be used to move the plate body up and down, the plate body drives the clamping plate to move up and down, the spring drives the square plate to move inward, the square plate drives the insertion rod to move inward, and the insertion rod is inserted into the groove of the horizontal block, thereby facilitating the adjustment of the clamping plates on both sides to different heights, facilitating the clamping and positioning of bent workpieces, and improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 This is a schematic diagram of the straight tube, vertical plate and straight block structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the crossbar, spring and square plate of the utility model;

[0017] Figure 4 It is a schematic diagram of the structure of the scale, straight block and inclined block of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the vertical cylinder, screw rod and square rod of the utility model;

[0019] Figure 6 It is a schematic diagram of the straight tube, threaded rod and block structure of the utility model.

[0020] In the figure: 1. straight cylinder, 2. adjusting structure, 2a1. cross bar, 2a2. spring, 2a3. square plate, 2a4. plate body, 2a5. cross block, 2a6. plug rod, 2b1. rubber pad, 3. measuring structure, 301. scale, 302. straight block, 303. oblique block, 4. threaded rod, 5. block body, 6. motor, 7. vertical plate, 8. housing, 9. vertical cylinder, 10. screw rod, 11. square rod, 12. splint, 13. sliding rod. DETAILED DESCRIPTION

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

[0022] Embodiment 1:

[0023] See attached Figure 1-6 : In this embodiment, a positioning fixture includes a straight cylinder 1, the inner wall of one end of the straight cylinder 1 is rotatably connected with a threaded rod 4 through a bearing, one end of the threaded rod 4 is fixedly connected to the output end of a motor 6, the model of the motor 6 is determined according to the actual usage, one end of the motor 6 is fixedly connected to one end of the straight cylinder 1, the outer wall of the threaded rod 4 is threadedly connected with a block 5, the upper part of the outer wall of the block 5 is gap-matched with the through groove on one side of the top of the straight cylinder 1, the through groove on one side of the top of the straight cylinder 1 plays a limiting role when the block 5 is subjected to force and moves left and right, two vertical plates 7 are arranged above the block 5, the bottom of the vertical plate 7 on one side is fixedly connected to the top of the block 5, and the bottom of the vertical plate 7 on the other side is fixedly connected to one side of the top of the straight cylinder 1, a clamping plate 12 is arranged on one side of the vertical plate 7, a shell 8 is fixedly connected to the upper part of one side of the vertical plate 7, and a sliding rod 13 is fixedly connected to the upper inner wall of the vertical plate 7;

[0024] The top of the upper clamping plate 12 is fixedly connected with a square rod 11, and the bottom of the outer wall of the square rod 11 is clearance-matched with the bottom inner wall of the vertical tube 9. The bottom inner wall of the vertical tube 9 plays a limiting role when the square rod 11 moves up and down under force. The top inner wall of the square rod 11 is threadedly connected with a screw rod 10, and the top of the outer wall of the screw rod 10 is rotatably connected to the top inner wall of the vertical tube 9 through a bearing. The bearing allows the screw rod 10 to rotate on the top inner wall of the vertical tube 9 when force is applied. A measuring structure 3 is provided on one side of the vertical plate 7, and an adjusting structure 2 is provided on one side of the outer shell 8. The measuring structure 3 is convenient for the staff to accurately adjust the distance between the clamping plates 12 on both sides, without the need for the staff to make reciprocating adjustments, and the operation is simple. The adjusting structure 2 is convenient for clamping and positioning workpieces with bends, thereby improving the scope of application.

[0025] The measuring structure 2 includes a scale 301, an inner wall of one side of the scale 301 is threadedly connected to the inner wall below the front end surface of the vertical plate 7 on one side by bolts. The scale 301 is fixed by bolts, which is convenient for the staff to replace the scales 301 of different precisions. An inclined block 303 is provided below the scale 301, and a straight block 302 is fixedly connected to the bottom of the inclined block 303. The rear end of the straight block 302 is fixedly connected to the bottom of the front end surface of the vertical plate 7 on the other side, which is convenient for the staff to accurately adjust the distance between the two side clamps without the need for reciprocating adjustment by the staff, and the operation is simple.

[0026] The adjustment structure 2 includes a cross bar 2a1, one side of the outer wall of the cross bar 2a1 is in clearance with the inner wall of one end of the housing 8, one end of the cross bar 2a1 is fixedly connected to a square plate 2a3, one end of the square plate 2a3 is fixedly connected to the outer side of a spring 2a2, the spring 2a2 applies an inward force to the square plate 2a3, one end of the spring 2a2 is fixedly connected to the outer side of one end of the inner wall of the housing 8, the other end of the square plate 2a3 is fixedly connected to a plug rod 2a6, the outer wall gap of the plug rod 2a6 is in clearance with a cross block 2a5, the cross block One side of the outer wall of 2a5 is gap-fitted with the upper inner wall of the vertical plate 7, and one side inner wall of the cross block 2a5 is slidably engaged with the outer wall of the slide rod 13. The slide rod 13 limits the cross block 2a5 when it moves up and down under force. One end of the cross block 2a5 is fixedly connected to the plate body 2a4, and the lower side of one side of the plate body 2a4 is fixedly connected to one end of the lower clamping plate 12, and the upper side of one side of the plate body 2a4 is fixedly connected to one end of the vertical tube 9, which is convenient for clamping and positioning workpieces with bends and improves the scope of application.

[0027] Working principle:

[0028] When fixing workpieces of different sizes:

[0029] The motor 6 starts to work, the motor 6 drives the threaded rod 4 to rotate, the threaded rod 4 drives the block 5 to move left and right, the block 5 drives the vertical plate 7 on one side to move left and right, and then the scale 301 moves left and right, according to the position of the inclined block 303 pointing to the scale 301, the distance between the clamping plates 12 on both sides is understood, the clamping plate 12 on one side is adjusted to a suitable position, the screw rod 10 is rotated, the screw rod 10 drives the square rod 11 to move downward, the square rod 11 drives the upper clamping plate 12 to move downward, and then the workpiece is fixed;

[0030] When fixing the bent workpiece:

[0031] The plate body 2a4 is moved up and down, the plate body 2a4 drives the clamping plate 12 to move up and down, the spring 2a2 drives the square plate 2a3 to move inward, the square plate 2a3 drives the insertion rod 2a6 to move inward, so that the insertion rod 2a6 is inserted into the groove of the horizontal block 2a5, and then the clamping plates 12 on both sides are adjusted to different heights, and the screw rod 10 is rotated to make the clamping plate 12 fix the bent workpiece.

[0032] Embodiment 2:

[0033] See attached Figure 1-6 In the present embodiment, a positioning fixture is provided, wherein the adjustment structure 2 may further include a rubber pad 2b1, one end of the rubber pad 2b1 is fixedly connected to one end of the clamping plate 12, and the other end of the rubber pad 2b1 is processed with wear patterns.

[0034] Working principle:

[0035] When the workpiece is clamped and fixed by the clamping plate 12, the rubber pad 2b1 can increase the friction force, thereby improving the stability of the fixation of the workpiece.

[0036] 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, comprising a straight cylinder (1), characterized in that: The inner wall of one end of the straight cylinder (1) is rotatably connected to a threaded rod (4) through a bearing, one end of the threaded rod (4) is fixedly connected to the output end of the motor (6), one end of the motor (6) is fixedly connected to one end of the straight cylinder (1), the outer wall of the threaded rod (4) is threadedly connected to a block (5), the upper part of the outer wall of the block (5) is gap-matched with a through groove on one side of the top of the straight cylinder (1), two vertical plates (7) are provided above the block (5), the bottom of the vertical plate (7) on one side is fixedly connected to the top of the block (5), and the bottom of the vertical plate (7) on the other side is fixedly connected to one side of the top of the straight cylinder (1), a clamping plate (12) is provided on one side of the vertical plate (7), a shell (8) is fixedly connected to the upper part of one side of the vertical plate (7), a measuring structure (3) is provided on one side of the vertical plate (7), and an adjustment structure (2) is provided on one side of the shell (8).

2. A positioning fixture according to claim 1, characterized in that: The measuring structure (3) comprises a scale (301), an inner wall of one side of the scale (301) being threadedly connected to the inner wall below the front end surface of a vertical plate (7) on one side through bolts, an inclined block (303) being provided below the scale (301), a straight block (302) being fixedly connected to the bottom of the inclined block (303), and a rear end of the straight block (302) being fixedly connected to the bottom of the front end surface of the vertical plate (7) on the other side.

3. A positioning fixture according to claim 1, characterized in that: A sliding rod (13) is fixedly connected to the upper inner wall of the vertical plate (7).

4. A positioning fixture according to claim 1, characterized in that: The top of the upper clamping plate (12) is fixedly connected to a square rod (11), and the lower part of the outer wall of the square rod (11) is gap-matched with the bottom inner wall of the vertical tube (9).

5. A positioning fixture according to claim 4, characterized in that: The top inner wall of the square rod (11) is threadedly connected with a screw rod (10), and the upper part of the outer wall of the screw rod (10) is rotatably connected to the top inner wall of the vertical cylinder (9) through a bearing.

6. A positioning fixture according to claim 1, characterized in that: The adjustment structure (2) comprises a cross bar (2a1), one side of the outer wall of the cross bar (2a1) is gap-matched with the inner wall of one end of the outer shell (8), one end of the cross bar (2a1) is fixedly connected to a square plate (2a3), the outer side of one end of the square plate (2a3) is fixedly connected to a spring (2a2), one end of the spring (2a2) is fixedly connected to the outer side of one end of the inner wall of the outer shell (8), the other end of the square plate (2a3) is fixedly connected to an insertion rod (2a6), and the insertion rod (2a6) is fixedly connected to the outer side of one end of the inner wall of the outer shell (8). a6) is provided with a horizontal block (2a5) in the outer wall gap, one side of the outer wall of the horizontal block (2a5) is provided with a gap with the upper inner wall of the vertical plate (7), one side of the inner wall of the horizontal block (2a5) is slidably engaged with the outer wall of the slide rod (13), one end of the horizontal block (2a5) is fixedly connected with a plate body (2a4), one side of the plate body (2a4) is fixedly connected with one end of the lower clamping plate (12), and one side of the plate body (2a4) is fixedly connected with one end of the vertical tube (9) at the top.

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