High-precision jig convenient to clamp

Abstract

The utility model relates to the technical field of jigs, and discloses a high-precision jig convenient to clamp, which comprises a base, a fixing ring is arranged at the top end of the base, a plurality of arc-shaped clamping plates are symmetrically arranged on the inner side of the fixing ring, connecting rods are arranged on the outer side surfaces of the arc-shaped clamping plates, and the connecting rods penetrate through the fixing ring. The outer side of the fixing ring is sleeved with an adjusting ring, a shuttle-shaped body is arranged on the inner side face of the adjusting ring, the outer side face of the shuttle-shaped body is an inclined cambered surface and abuts against the rolling wheel, an annular groove is formed in the adjusting ring, and a plurality of limiting frames are evenly distributed in the annular groove; and a locking insert matched with the limiting frame is arranged on the base. Through cooperative arrangement of the fixing ring, the arc-shaped clamping plate and the adjusting ring, positioning and clamping of workpieces are achieved, the fixture can adapt to workpieces of different sizes, the fixture does not need to be replaced, machining is facilitated, and meanwhile the production cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to a high-precision jig which is convenient for clamping. Background Technique

[0002] In the prior art, in order to improve the processing efficiency and quality of workpieces, production enterprises will design special jigs for workpieces to position and clamp the workpieces. Most traditional jigs are of fixed structures and have relatively single functions. They can only be used for specific workpieces. When processing workpieces of different sizes, the jigs need to be replaced, which not only causes certain inconvenience to production and processing, but also excessive jigs will increase production costs. Content of the Utility Model

[0003] The purpose of the utility model is to provide a high-precision jig which is convenient for clamping, so as to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a high-precision jig which is convenient for clamping, including a base, a fixing ring is arranged at the top end of the base, a plurality of arc-shaped clamping plates are symmetrically arranged inside the fixing ring, a connecting rod is arranged on the outer side surface of the arc-shaped clamping plate, the connecting rod penetrates through the fixing ring, and a roller is embedded at one end of the connecting rod far away from the arc-shaped clamping plate. An adjusting ring is sleeved outside the fixing ring, a prism body is arranged on the inner side surface of the adjusting ring, the outer side surface of the prism body is an inclined arc surface and abuts against the roller, a ring groove is opened on the adjusting ring, a plurality of limiting frames are uniformly distributed in the ring groove, and a locking plug-in which is matched with the limiting frame is arranged on the base.

[0005] The following improvements are made in the application scheme: the locking plug-in includes a support plate, a driving motor, a connecting seat and a plug block which is correspondingly matched with the limiting frame. The support plate is installed on the base, the driving motor is installed at the top end of the support plate, the connecting seat is arranged at the end of the output shaft of the driving motor, and the plug block is installed at the bottom of the outer end of the connecting seat.

[0006] The following improvements are made in the application scheme: a limiting groove is opened on the side of the support plate below the driving motor, the output shaft of the driving motor penetrates through the support plate and extends into the limiting groove, and the connecting seat is slidably installed in the limiting groove.

[0007] The following improvements are made in the application scheme: a guiding hole corresponding to the connecting rod is opened on the fixing ring, and a wear-resistant bushing is arranged on the inner wall of the guiding hole.

[0008] The following improvements are made in the application scheme: a rubber cushion layer is arranged on one side of the arc-shaped clamping plate far away from the connecting rod.

[0009] The following improvements are made in the application scheme: a handle is arranged on the side of the adjusting ring, and the handle is arranged in an L-shaped structure.

[0010] Compared with the prior art, the utility model provides a high-precision jig that is convenient to clamp, and has the following beneficial effects:

[0011] Through the cooperative setting among the fixed ring, the arc-shaped clamping plate and the adjusting ring, the utility model realizes the positioning and clamping of the workpiece, and can adapt to workpieces of different sizes without replacing the jig, which is convenient for processing and effectively reduces the production cost. When in use, first place the workpiece in the middle of the arc-shaped clamping plate, push the handle to rotate the adjusting ring, so that a relative displacement occurs between the roller and the inclined arc surface of the spindle body, squeeze the roller to move towards the fixed ring, thereby pushing the connecting rod and the arc-shaped clamping plate towards the workpiece to position and clamp the workpiece. At this time, there is a limit frame corresponding to the lower part of the insertion block. Start the driving motor, and the output shaft drives the connecting seat to move downward along the limit groove, and insert the insertion block into the limit frame to fix the position of the adjusting ring. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the utility model;

[0013] Figure 2 is a schematic connection diagram of the fixed ring and the adjusting ring.

[0014] In the figure: 1, base; 2, fixed ring; 3, arc-shaped clamping plate; 31, connecting rod; 32, roller; 33, rubber cushion layer; 4, adjusting rod; 41, spindle body; 42, ring groove; 43, limit frame; 44, handle; 5, support plate; 51, driving motor; 52, connecting seat; 53, insertion block; 54, limit groove. Specific Embodiments

[0015] The following will describe the technical solutions in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model:

[0016] Such as Figure 1-2As shown in the figure, a high-precision fixture that is convenient for clamping mainly consists of a base 1, a fixed ring 2, and an adjusting ring 4. The fixed ring 2 is fixedly installed at the top of the base 1. Four arc-shaped clamping plates 3 are symmetrically arranged inside the fixed ring 2. A connecting rod 31 is fixedly connected to the outer side of the arc-shaped clamping plate 3. A guiding hole corresponding to the connecting rod 31 is provided on the fixed ring 2. A wear-resistant bushing is provided on the inner wall of the guiding hole. The connecting rod 31 passes through the fixed ring 2 through the guiding hole. At the same time, a roller 32 is embedded at one end of the connecting rod 31 away from the arc-shaped clamping plate 3. An adjusting ring 4 is sleeved outside the fixed ring 2. A spindle body 41 is provided on the inner side of the adjusting ring 4. A handle 44 is provided on the side of the adjusting ring 4. The handle 44 is arranged in an L-shaped structure. The outer side of the spindle body 41 is an inclined arc surface and abuts against the roller 32. The inclined arc surface slopes from the upper left to the lower right. A ring groove 42 is provided on the adjusting ring 4. A number of limiting frames 43 are evenly distributed in the ring groove 42. A locking plug-in piece that cooperates with the limiting frame 43 is provided on the base 1. The locking plug-in piece includes a support plate 5, a driving motor 51, a connecting seat 52, and a plug 53 that corresponds to and cooperates with the limiting frame 43. The support plate 5 is installed on the base 1. The driving motor 51 is installed at the top of the support plate 5. A limiting groove 54 is provided on the side of the support plate 5 below the driving motor 51. The output shaft of the driving motor 51 passes through the support plate 5 and extends into the limiting groove 54. The connecting seat 52 is slidably installed in the limiting groove 54. The connecting seat 52 is connected to the end of the output shaft of the driving motor 51. The plug 53 is fixedly installed at the bottom of the outer end of the connecting seat 52.

[0017] To reduce the frictional damage of the arc-shaped clamping plate 3 to the workpiece, a rubber cushion layer 33 is provided on the side of the arc-shaped clamping plate 3 away from the connecting rod 31.

[0018] During use, first place the workpiece in the middle of the arc-shaped clamping plate 3. Push the handle 44 to rotate the adjusting ring 4 counterclockwise, so that a relative displacement occurs between the roller 32 and the inclined arc surface of the spindle body 41, squeezing the roller 32 to move towards the fixed ring 2, thereby pushing the connecting rod 31 and the arc-shaped clamping plate 3 towards the workpiece to position and clamp the workpiece. At this time, there is a limiting frame 43 corresponding to the lower part of the plug 53. Start the driving motor 51, and drive the connecting seat 52 to move downward along the limiting groove 54 by the output shaft, and insert the plug 53 into the limiting frame 43 to fix the position of the adjusting ring 4.

[0019] The above embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Claims

1. A high-precision fixture for easy clamping, comprising a base (1), characterized in that: A fixing ring (2) is provided at the top of the base (1), a plurality of arc-shaped clamping plates (3) are symmetrically arranged on the inner side of the fixing ring (2), a connecting rod (31) is provided on the outer side of the arc-shaped clamping plate (3), the connecting rod (31) passes through the fixing ring (2), and a roller (32) is embedded at one end of the connecting rod (31) away from the arc-shaped clamping plate (3), an adjusting ring (4) is sleeved on the outer side of the fixing ring (2), a shuttle-shaped body (41) is provided on the inner side of the adjusting ring (4), the outer side of the shuttle-shaped body (41) is an inclined arc surface and abuts against the roller (32), an annular groove (42) is provided on the adjusting ring (4), a plurality of limit frames (43) are evenly distributed in the annular groove (42), and a locking plug-in matching with the limit frame (43) is provided on the base (1).

2. A high-precision fixture for easy clamping according to claim 1, characterized in that: The locking plug-in comprises a support plate (5), a drive motor (51), a connecting seat (52), and an insert block (53) corresponding to the limit frame (43); the support plate (5) is mounted on the base (1); the drive motor (51) is mounted on the top of the support plate (5); the connecting seat (52) is arranged at the end of the output shaft of the drive motor (51); and the insert block (53) is mounted on the bottom of the outer end of the connecting seat (52).

3. A high-precision fixture for easy clamping according to claim 2, characterized in that: A limiting groove (54) is provided on the side of the support plate (5) below the drive motor (51); an output shaft of the drive motor (51) passes through the support plate (5) and extends into the limiting groove (54); and the connecting seat (52) is slidably mounted in the limiting groove (54).

4. The high-precision fixture for easy clamping according to claim 1, characterized in that: The fixing ring (2) is provided with a guide hole corresponding to the connecting rod (31), and the inner wall of the guide hole is provided with a wear-resistant bushing.

5. The high-precision fixture for easy clamping according to claim 1, characterized in that: A rubber cushion layer (33) is provided on one side of the arc-shaped clamping plate (3) away from the connecting rod (31).

6. The high-precision fixture for easy clamping according to claim 1, characterized in that: A handle (44) is provided on the side of the adjustment ring (4), and the handle (44) is arranged in an L-shaped structure.

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