CN215967636U - Accurate hardware processing splint positioner - Google Patents
Accurate hardware processing splint positioner Download PDFInfo
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- CN215967636U CN215967636U CN202122652901.7U CN202122652901U CN215967636U CN 215967636 U CN215967636 U CN 215967636U CN 202122652901 U CN202122652901 U CN 202122652901U CN 215967636 U CN215967636 U CN 215967636U
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- annular gasket
- circular groove
- clamping plate
- groove
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Abstract
A clamping plate positioning device for precision hardware machining comprises a horizontal base and a horizontal clamping plate, wherein a groove is formed in the upper surface of the base, a vertically arranged air cylinder is arranged in the groove, the upper surface of the base is fixedly connected with a flange, a first circular groove concentric with the flange is formed between the lower surface of the flange and the upper surface of the air cylinder, a vertically arranged positioning pin is fixedly connected with the lower surface of the clamping plate, an annular accommodating groove is formed in the outer edge of one end, away from the clamping plate, of the positioning pin, the positioning pin penetrates through the center of the flange to be embedded into the first circular groove, a plurality of steel balls arranged along the circumferential direction of the first circular groove are arranged in the first circular groove, the air cylinder comprises an air cylinder rod and a horn-shaped annular gasket concentric with the first circular groove and having elasticity, the outer edge of the annular gasket is higher than the inner edge, and the annular gasket is pressed against the bottom of the steel balls, the cylinder rod is supported at the position close to the inner edge of the bottom of the annular gasket.
Description
Technical Field
The utility model belongs to the field of machining, and particularly relates to a precise hardware machining clamping plate positioning device.
Background
In machining, because workpieces are various in types and shapes and sizes and are difficult to directly fix on a machine tool workbench, a clamping plate is frequently used as a connecting piece, the workpieces are firstly fixed on the clamping plate, then a clamping plate base is fixed on the machine tool workbench, and finally the clamping plate is fixed on the clamping plate base, so that the workpieces are machined on the machine tool workbench.
In order to facilitate the installation and disassembly, the lower surface of the existing clamping plate is connected with a cylindrical positioning pin, a cylindrical groove corresponding to the cylindrical positioning pin is formed in the clamping plate base, when the clamping plate is required to be installed on the clamping plate base, the cylindrical positioning pin is inserted into the cylindrical groove to complete the installation, and when the clamping plate is required to be disassembled, the positioning pin is pulled out.
However, in order to facilitate the insertion and extraction, the cylindrical groove walls on the cylindrical positioning pin and the clamping plate base cannot be completely attached, a certain gap needs to exist between the cylindrical positioning pin and the clamping plate base, the positioning pin is easy to shake after being inserted into the groove, and the clamping plate cannot be completely fixed, so that the workpiece machining precision is influenced, and the requirement of precise hardware machining cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a clamping plate positioning device for precise hardware processing.
2. The utility model is realized in this way, a precise hardware processing clamping plate positioning device, which is characterized by comprising a horizontal base and a horizontal clamping plate arranged on the base;
the upper surface of the base is provided with a groove, a vertically arranged air cylinder is arranged in the groove, the upper surface of the base is fixedly connected with a flange, and a first circular groove concentric with the flange is formed on the lower surface of the flange and the upper surface of the air cylinder;
the lower surface of the clamping plate is fixedly connected with a vertically arranged positioning pin, the outer edge of one end, away from the clamping plate, of the positioning pin is provided with an annular accommodating groove, the center of the flange is provided with a through round hole, the inner diameter of the round hole is larger than the outer diameter of the positioning pin, the positioning pin penetrates through the round hole and is embedded into the middle of the first round groove, and the edge, close to the round hole, of the flange extends downwards to form an annular bulge;
an elastic annular gasket concentric with the first circular groove is arranged in the first circular groove, a plurality of steel balls arranged along the circumferential direction of the first circular groove are arranged between the annular gasket and the positioning pin, and the positioning pin is limited to be separated from the first circular groove when the steel balls enter the annular accommodating groove;
the cylinder comprises a cylinder rod and an elastic horn-shaped annular gasket which is concentric with the first circular groove, the upper end and the lower end of the annular gasket are both provided with openings, the upper end of the annular gasket is provided with a large opening, the lower end of the annular gasket is provided with a small opening, the outer edge of the annular gasket is higher than the inner edge of the annular gasket, the annular gasket is propped against the bottom of the steel ball, and the cylinder rod is propped against the bottom of the annular gasket at a position close to the inner edge;
when the cylinder rod is contracted, the annular gasket limits the steel balls to be separated from the annular accommodating groove;
when the cylinder rod extends, the outer edge of the annular gasket is lower than or equal to the inner edge, and the steel balls are separated from the annular accommodating groove;
the bottom of the first circular groove is provided with a second circular groove which is concentric with the first circular groove, and the diameter of the second circular groove is smaller than that of the first circular groove;
the base is provided with a positioning hole for connecting with a machine tool workbench;
the clamping plate is provided with a bolt hole for connecting with a workpiece;
the two ends of the clamping plate along the width direction are respectively and fixedly connected with a hanging ring.
The positioning device for the precise hardware processing clamping plate can lock or unlock the positioning pin through the matching of the cylinder, the steel ball and the positioning pin; when the air cylinder rod contracts, the outer edge of the annular gasket is higher than the inner edge of the annular gasket and limits the steel balls to be separated from the annular accommodating groove, so that the positioning pin is firmly locked in the first circular groove, the clamping plate is prevented from shaking during workpiece processing, and the processing precision is effectively improved; when the cylinder rod extends, the outer edge of the annular gasket is lower than the inner edge of the annular gasket or the heights of the outer edge and the inner edge are equal, and the steel balls can be separated from the annular accommodating groove, so that the positioning pin can be unlocked from the first circular groove, and the clamping plate and the base can be quickly detached.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a perspective view of a precise hardware machining cleat positioning device provided by an embodiment of the utility model;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken along the line A-A in FIG. 2;
FIG. 4 is an enlarged view at C in FIG. 3;
FIG. 5 is a schematic view of the precision hardware machined cleat retainer of FIG. 3 with the retainer pins disengaged;
FIG. 6 is a cross-sectional view taken along the line B-B in FIG. 3;
fig. 7 is an exploded view of fig. 1.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 7, a precise hardware processing clamp plate positioning device provided by an embodiment of the present invention includes a horizontal base 1 and a horizontal clamp plate 2 disposed on the base 1;
a groove (not shown) is formed in the upper surface of the base 1, a vertically arranged cylinder 3 is arranged in the groove, the upper surface of the base 1 is fixedly connected with a flange 4, and a first circular groove 11 concentric with the flange 4 is formed between the lower surface of the flange 4 and the upper surface of the cylinder 3;
the lower surface of the clamping plate 2 is fixedly connected with a vertically arranged positioning pin 21, the outer edge of one end, away from the clamping plate 2, of the positioning pin 21 is provided with an annular accommodating groove 211, the center of the flange 4 is provided with a through round hole (not shown), the inner diameter of the round hole is larger than the outer diameter of the positioning pin 21, the positioning pin 21 penetrates through the round hole and is embedded into the middle of the first round groove 11, and the edge, close to the round hole, of the flange 4 extends downwards to form an annular bulge 41;
an elastic annular gasket 5 which is concentric with the first circular groove 11 is arranged in the first circular groove 11, a plurality of steel balls 6 which are arranged along the circumference of the first circular groove 11 are arranged between the annular gasket 5 and the positioning pin 21, and the positioning pin 21 is separated from the first circular groove 11 when the steel balls 6 enter the annular accommodating groove 211;
the cylinder 3 comprises a cylinder rod (not shown) and a horn-shaped annular gasket 31 which is concentric with the first circular groove 11 and has elasticity, the upper end and the lower end of the annular gasket 31 are both open, the upper end opening of the annular gasket 31 is large, the lower end opening of the annular gasket 31 is small, the outer edge of the annular gasket 31 is higher than the inner edge, the annular gasket 31 is propped against the bottom of the steel ball 6, and the cylinder rod is propped against the bottom of the annular gasket 31 at a position close to the inner edge;
when the cylinder rod is contracted, the annular gasket 31 limits the steel balls 6 from separating from the annular accommodating groove 211;
when the cylinder rod extends, the outer edge of the annular gasket 31 is lower than or equal to the inner edge, and the steel ball 6 is separated from the annular accommodating groove 211.
As shown in fig. 3 to 5, further, the bottom of the first circular groove 11 is opened with a second circular groove 12 concentric with the first circular groove 11, the diameter of the second circular groove 12 is smaller than that of the first circular groove 11, and the second circular groove 12 forms a space for accommodating the positioning pin 21.
As shown in fig. 6 and 7, the base 1 is further provided with a positioning hole 13 for connection to a machine tool table.
Further, the clamp plate 2 is provided with a bolt hole (not shown) for connecting with a workpiece.
As shown in fig. 1 and 2, two ends of the clamping plate 2 in the width direction are fixedly connected with a hanging ring 8 respectively.
The working principle of the precise hardware processing clamping plate positioning device provided by the utility model is as follows:
as shown in fig. 3, 4, 6, and 7, when a workpiece needs to be fixed to a machine tool for machining: firstly, fixing a base 1 on a machine tool workbench by using bolts, and fixing a workpiece on a clamping plate 2; then starting the cylinder 3 to extend the cylinder rod, enabling the cylinder rod to push the annular gasket 31 to move upwards to enable the annular gasket 31 to generate elastic deformation, stopping the operation of the cylinder 3 when the outer edge and the inner edge of the annular gasket 31 are equal in height, and limiting the radial movement of the steel ball 6 along the first circular groove 11 only by the annular gasket 5 and the annular protrusion 41; then the positioning pin 21 is completely inserted into the circular hole of the flange 4; and finally, starting the cylinder 3 to enable the cylinder rod to contract, gradually restoring the annular gasket 31 under the action of self elasticity, enabling the steel balls 6 to gradually move downwards along the inclined plane of the annular gasket 31, and when the steel balls 6 enter the annular accommodating groove 211, stopping the operation of the cylinder 3. As the outer edge of the annular gasket 31 is higher than the inner edge, the annular gasket 31 can tightly fix the steel balls 6 in the annular accommodating groove 211, so that the positioning pin 21 is clamped and fixed by the annular gasket 31, at the moment, the clamping plate 2 is completely fixed on the base 1, and the workpiece on the clamping plate 2 can be machined.
As shown in fig. 5, when the clamping plate 2 needs to be removed from the base 1: firstly, driving the cylinder 3 to extend a cylinder rod, enabling the cylinder rod to prop against the annular gasket 31 to move upwards to enable the annular gasket 31 to generate elastic deformation, and stopping the operation of the cylinder 3 when the outer edge and the inner edge of the annular gasket 31 are equal in height; then, the clamping plate 2 is moved upwards by the hanging frame through the hanging ring 8 of the clamping plate 2, and at the moment, the steel balls 6 are pushed by the side wall of the annular accommodating groove 211 to move outwards along the radial direction of the first circular groove 11; until the steel ball 6 is separated from the annular accommodating groove 211, the clamping plate 2 continues to move upwards until the steel ball is completely pulled out of the base 1, the disassembly is completed, meanwhile, the annular gasket 5 and the annular protrusion 41 limit the radial movement of the steel ball 6 along the first circular groove 11, and the steel ball 6 is guaranteed to stop on the annular gasket 31 to prepare for the next installation.
The positioning device for the precise hardware processing clamping plate can lock or unlock the positioning pin through the matching of the cylinder 3, the steel ball 6 and the positioning pin 21; when the cylinder rod is contracted, the outer edge of the annular gasket 31 is higher than the inner edge thereof and limits the steel balls 6 to be separated from the annular accommodating groove 211, so that the positioning pin 21 is firmly locked in the first circular groove 11, the clamping plate 2 is prevented from shaking during workpiece processing, and the processing precision is effectively improved; when the cylinder rod extends, the outer edge of the annular gasket 31 is lower than the inner edge thereof or the heights of the outer edge and the inner edge are equal, and the steel ball 6 can be separated from the annular accommodating groove 211, so that the positioning pin 21 can be unlocked from the first circular groove 11, and the clamping plate 2 and the base 1 can be quickly detached.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.
Claims (1)
1. A precise hardware processing clamping plate positioning device is characterized by comprising a horizontal base and a horizontal clamping plate arranged on the base;
the upper surface of the base is provided with a groove, a vertically arranged air cylinder is arranged in the groove, the upper surface of the base is fixedly connected with a flange, and a first circular groove concentric with the flange is formed on the lower surface of the flange and the upper surface of the air cylinder;
the lower surface of the clamping plate is fixedly connected with a vertically arranged positioning pin, the outer edge of one end, away from the clamping plate, of the positioning pin is provided with an annular accommodating groove, the center of the flange is provided with a through round hole, the inner diameter of the round hole is larger than the outer diameter of the positioning pin, the positioning pin penetrates through the round hole and is embedded into the middle of the first round groove, and the edge, close to the round hole, of the flange extends downwards to form an annular bulge;
an elastic annular gasket concentric with the first circular groove is arranged in the first circular groove, a plurality of steel balls arranged along the circumferential direction of the first circular groove are arranged between the annular gasket and the positioning pin, and the positioning pin is limited to be separated from the first circular groove when the steel balls enter the annular accommodating groove;
the cylinder comprises a cylinder rod and an elastic horn-shaped annular gasket which is concentric with the first circular groove, the upper end and the lower end of the annular gasket are both provided with openings, the upper end of the annular gasket is provided with a large opening, the lower end of the annular gasket is provided with a small opening, the outer edge of the annular gasket is higher than the inner edge of the annular gasket, the annular gasket is propped against the bottom of the steel ball, and the cylinder rod is propped against the bottom of the annular gasket at a position close to the inner edge;
when the cylinder rod is contracted, the annular gasket limits the steel balls to be separated from the annular accommodating groove;
when the cylinder rod extends, the outer edge of the annular gasket is lower than or equal to the inner edge, and the steel balls are separated from the annular accommodating groove;
the bottom of the first circular groove is provided with a second circular groove which is concentric with the first circular groove, and the diameter of the second circular groove is smaller than that of the first circular groove;
the base is provided with a positioning hole for connecting with a machine tool workbench;
the clamping plate is provided with a bolt hole for connecting with a workpiece;
the two ends of the clamping plate along the width direction are respectively and fixedly connected with a hanging ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122652901.7U CN215967636U (en) | 2021-11-02 | 2021-11-02 | Accurate hardware processing splint positioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122652901.7U CN215967636U (en) | 2021-11-02 | 2021-11-02 | Accurate hardware processing splint positioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215967636U true CN215967636U (en) | 2022-03-08 |
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ID=80572776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122652901.7U Active CN215967636U (en) | 2021-11-02 | 2021-11-02 | Accurate hardware processing splint positioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215967636U (en) |
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2021
- 2021-11-02 CN CN202122652901.7U patent/CN215967636U/en active Active
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