CN215616578U - Support rotary positioning device - Google Patents
Support rotary positioning device Download PDFInfo
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- CN215616578U CN215616578U CN202121913478.5U CN202121913478U CN215616578U CN 215616578 U CN215616578 U CN 215616578U CN 202121913478 U CN202121913478 U CN 202121913478U CN 215616578 U CN215616578 U CN 215616578U
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Abstract
The utility model discloses a bracket rotary positioning device, which comprises a clamp main body, a positioning element, a clamping element and a mounting element, wherein the clamp main body is provided with a clamping groove; a plurality of pressing plate grooves are formed in the outer peripheral side of the clamp body; the positioning element comprises a positioning boss arranged in the middle of the clamp body and a plurality of groups of pin positioning components arranged on the periphery of the positioning boss; the periphery of the positioning boss is provided with a yielding groove, and the pin positioning component is positioned in the yielding groove; a plurality of groups of clamping elements; each group of clamping elements comprises a screw, a pressing plate, a cushion block and a standard block; a plurality of sets of mounting elements; each set of mounting elements includes a screw and a pressure plate. The utility model uses a three-dimensional rotation positioning mode to replace a multi-process processing method, ensures the consistency of products, solves the problem of actual production and realizes the purposes of cost reduction and efficiency improvement.
Description
Technical Field
The utility model relates to a machining device, in particular to a bracket rotating and positioning device.
Background
A certain type of military equipment antenna support is used for fixedly supporting the multi-type antenna line feed assembly. The equipment support is more, and product machining precision and uniformity require more. The original processing technological process of the support adopts a common milling machine, lines, holes and tapping, the processing efficiency is low, the clamping is time-consuming and labor-consuming, the consistency of products is difficult to guarantee, the difficulty is brought to subsequent antenna assembly, assembly and debugging, and the bottleneck influencing the production progress of enterprises is formed. To solve the practical production problems, an effective solution must be sought.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art, and provides a bracket rotary positioning device which is fixed on the table surface of a machine tool of small numerical control equipment, so that the product is quickly clamped and positioned, the product consistency is improved, and the production requirements of enterprises are met.
In order to achieve the purpose, the utility model adopts the following specific technical scheme:
a bracket rotary positioning device comprises a clamp main body, a positioning element, a clamping element and a mounting element;
a plurality of pressing plate grooves are formed in the outer peripheral side of the clamp body;
the positioning element comprises a positioning boss arranged in the middle of the clamp body and a plurality of groups of pin positioning components arranged on the periphery of the positioning boss; the periphery of the positioning boss is provided with a yielding groove, and the pin positioning component is positioned in the yielding groove;
a plurality of groups of clamping elements; each group of clamping elements comprises a screw, a pressing plate, a cushion block and a standard block; the pressing plate is connected with a sliding block in a corresponding sliding rail of the machine tool workbench in a clamping manner through a screw, the pressing plate and the machine tool workbench clamp a bracket to be processed, a cushion block is fixed at the bottom of the pressing plate, and a standard block is arranged between the bracket to be processed and the machine tool workbench;
a plurality of sets of mounting elements; each group of mounting elements comprises a screw and a pressing plate; one end of the pressing plate is located in a corresponding pressing plate groove of the clamp main body, a cushion block is fixedly arranged below the other end of the pressing plate, the pressing plate and a sliding block arranged in a corresponding sliding rail on the machine tool workbench are connected in a clamping mode through screws, and the clamp main body and the machine tool workbench are fixed.
The utility model uses the positioning boss as a rotation center to carry out rotation processing on the bracket; the positioning element and the clamping element are used for realizing the processing, positioning and clamping of the bracket, and the device is integrally fixed on a machine tool workbench through the mounting element, so that the clamping and positioning are simple. The utility model uses a three-dimensional rotation positioning mode to replace a multi-process processing method, ensures the consistency of products, solves the problem of actual production and realizes the purposes of cost reduction and efficiency improvement.
Furthermore, the pin locating components are three groups, one group is arranged on one side above the locating boss, and the other two groups are arranged below the locating boss.
Further, pin locating component includes the cylinder pin and locates the cylinder locating hole of anchor clamps main part corresponding position department. Wherein, the cylinder pin adopts sliding fit mode with the cylinder locating hole.
The positioning mode meets the six-point positioning principle.
Furthermore, the abdicating groove is a major arc groove, and the circle center of the major arc is positioned at the position of the positioning boss. And when the three-dimensional rotating machining is carried out, the product is effectively avoided.
The three pressing plate grooves are distributed on the lower periphery of the left end surface and the right end surface and the lower periphery of the rear end surface of the clamp body; the mounting elements are three groups and correspond to the pressure plate grooves one by one. And fixing the rest three side surfaces except the bracket mounting surface (the front end surface of the clamp main body) on the machine tool workbench.
Furthermore, the clamp main body and the cylindrical pin are made of 40Cr alloy steel.
Compared with the prior art, the utility model has the following advantages:
1. the utility model uses the positioning boss as a rotation center to carry out rotation processing on the bracket; the positioning element and the clamping element are used for realizing the processing, positioning and clamping of the bracket, and the device is integrally fixed on a machine tool workbench through the mounting element, so that the clamping and positioning are simple.
2. The bracket rotating and positioning device has the advantages of simple structure, small volume and high processing efficiency.
3. The utility model adopts a three-dimensional rotation positioning mode to replace a multi-process processing method, ensures the consistency of products, solves the problem of actual production and realizes the purposes of cost reduction and efficiency improvement.
4. The relative positions of the positioning element of the device, the machine tool and the cutter are adjusted in advance, so that the supports do not need to be adjusted one by one during rotary positioning, and the device is convenient and fast to operate, high in efficiency and high in positioning accuracy and can be used for batch production and machining of the supports.
Drawings
FIG. 1 is a schematic perspective view of a rotational positioning apparatus for a stand according to the present invention;
FIG. 2 is a positioning view of the rotational positioning apparatus of the stand of FIG. 1;
FIG. 3 is a tooling diagram of the stand rotating and positioning apparatus of the present invention;
FIG. 4 is a left side view of FIG. 3;
FIG. 5 is a detail view of the cylindrical pin of FIG. 1;
FIG. 6 is a drawing of a part of a support to be machined;
FIG. 7 is a view for processing and positioning the mounting surface of the bracket to be processed;
FIG. 8 is a view of step one rotational positioning;
FIG. 9 is a view of the rotational positioning of step two;
FIG. 10 is a rotational positioning diagram of step three.
In the drawings, 1-the clamp body; 2-positioning the boss; 3-cylindrical positioning holes; 4-cylindrical positioning hole, 5-cylindrical positioning hole; 6-a yielding groove; 7-a platen slot; 8-cylindrical pins; 9-a screw; 10-pressing a plate; 11-a slide block; 12-cushion blocks; 13-a machine tool table; 14-a cushion block; 15-long screw; 16-standard block;
in fig. 6, a is a front view, b is a left side view, c is a top view, and d is a bottom view.
Detailed Description
The utility model is described in detail below with reference to the figures and the specific embodiments.
As shown in FIG. 1, the bracket rotating device of the utility model comprises a clamp main body, a mounting element, a positioning element and a clamping element. The material of the clamp body and the positioning element is 40Cr alloy steel. The clamp body is provided with a pressure plate groove 7 for fixing devices, a positioning boss 2 and cylindrical positioning holes 3, 4 and 5 for rotary positioning, and a yielding groove 6 for yielding products. Wherein, the top left side of location boss 2 is located to cylinder locating hole 3, and cylinder locating hole 4 is located the below of location boss 2, and cylinder locating hole 5 is located the below rear side of location boss 2, and the groove of stepping down 6 is the major arc bow groove, and the centre of a circle is located the position department of location boss 2 to location boss 2 carries out the product as rotation center and adds man-hour, dodges the product.
The positioning element selects three cylindrical pins 8 which are respectively matched with the cylindrical positioning holes 3, 4 and 5 on the clamp body, so that the positioning of the device is realized, and the product can obtain the correct position. The mounting elements comprise screws 9 and slides which are fixedly connected to a machine table 13. The clamping element comprises a screw, a pressing plate and a cushion block which clamp and fix a product in the numerical control machining process.
The structure of the device is shown in figure 1, three cylindrical positioning holes 3, 4 and 5 are arranged on a clamp main body 1, a rotary positioning boss 2 is arranged at one position, and a product abdicating groove 6 is arranged at the other position; three pressure plate grooves 7; the positioning element comprises three cylindrical pins 8; the positioning mode adopts the mode that the cylindrical pin 8 is in sliding fit with the cylindrical positioning holes 3, 4 and 5, and meets the six-point positioning principle.
The device shown in fig. 2 is positioned and fixed by four pressure plates 10 and three pressure plate grooves 7 on the left side, the right side and the rear side, and the pressure plates are clamped and connected by screws 9, cushion blocks 12 and sliding blocks 11, so that the device is fixed with an equipment workbench 13.
The device of the utility model is adopted to process the bracket as follows:
during machining, the shape of the support part is analyzed (as shown in fig. 6), and the position sizes of each rotary positioning boss, each cylindrical positioning hole, each abdicating groove and each pressing plate groove of the clamp body are determined. The positioning is considered to be positioning in a cylinder with a cylindrical surface. Because the positioning hole and the positioning element have manufacturing errors and installation errors, the center line varies in the horizontal direction and the vertical direction, the positioning center shifts, and a reference displacement error, namely delta Y is 0.01mm/2 is 0.005mm, and delta d is the tolerance (mm) of the outer circle of the positioning hole. Since the process reference is the axial line and the positioning reference coincides with the process reference, the positioning error Δ D of the machining dimension is 0.005mm, that is, the positioning error is 0.005 mm. Since the tolerance of the positioning element is 0mm, and other errors can be made by 0.005mm, the scheme is judged to be feasible, so that the matching tolerance of the positioning hole of the device and the positioning element is determined.
As shown in fig. 3 and 4, the holder main body 1 of the stand rotation positioning device has the following specifications: 200X 123X 80mm, is made of 40Cr alloy steel, and is processed on the clamp body 1 at three positions with diameters
Cylindrical positioning holes 3, 4 and 5 with the depth of 20 mm; machining a diameter
The height of the positioning boss 2 is 5 mm; processing an avoidance groove 6 with the diameter of 180mm and the depth of 1 mm; milling three pressure plate grooves 7 with the depth of 8 mm;
cylindrical pin as shown in fig. 5, one diameter is made
The length of the cylindrical pin 8 is 40 mm.
FIG. 7 shows a positioning diagram for processing a mounting surface of a bracket, and a positioning mode of the device is realized by clamping and positioning an existing three-dimensional template and processing a diameter at one position on the mounting surface
Diameter at 8 position
4 holes with the diameter of 7mm are formed, so that the bracket can be positioned by rotating the mounting surface subsequently.
Fig. 8 is a rotary positioning mode of step one, a cavity on the front surface of the bracket is processed, a hole with the diameter of 18mm on the mounting surface is matched and positioned with the positioning boss 2, and the cylindrical pin 8 is matched and positioned with the cylindrical positioning hole 3 in a sliding manner, and the rotary positioning device comprises four groups of clamping elements arranged on two sides of the clamp body and used for clamping the bracket, wherein each group of clamping elements comprises a long screw 15, a pressing plate 10, a cushion block 14 and a standard block 16.
And FIG. 9 is a rotary positioning mode in the second step, holes in one side face of the bracket are machined, holes with the diameter of 18mm in the installation face are in rotary matching positioning with the bosses 2, and the cylindrical pins 8 are in sliding matching positioning with the cylindrical positioning holes 4, and the rotary positioning device comprises two groups of clamping elements arranged on the right side of the clamp body and used for clamping the bracket, wherein each group of clamping elements comprises a long screw 15, a pressing plate 10, a cushion block 14 and a standard block 16.
Fig. 10 is a three-step rotary positioning mode, holes on the other side face of the bracket are machined, holes with the diameter of 18mm on the installation face are rotationally matched and positioned with the bosses 2, and the cylindrical pins 8 are slidably matched and positioned with the positioning holes 5.
The support is a support component of an antenna line feed unit of certain equipment, 450 pieces of equipment are needed for each equipment, and each set of processing period of the original process scheme is about 21 days, so that the subsequent assembly, debugging and delivery period are seriously influenced. By providing the support rotary positioning device, the processing process flow is improved, the production period of each set is about 10 days, the efficiency is improved by about 50 percent, and the annual economic benefit is about 15 ten thousand yuan.
Claims (7)
1. The bracket rotary positioning device is characterized by comprising a clamp main body, a positioning element, a clamping element and a mounting element;
a plurality of pressing plate grooves are formed in the outer peripheral side of the clamp body;
the positioning element comprises a positioning boss arranged in the middle of the front end face of the clamp main body and a plurality of groups of pin positioning assemblies arranged on the periphery of the positioning boss; the periphery of the positioning boss is provided with a yielding groove, and the pin positioning component is positioned in the yielding groove;
the clamping elements are provided with a plurality of groups; each group of clamping elements comprises a screw, a pressing plate, a cushion block and a standard block; the pressing plate is connected with a sliding block in a corresponding sliding rail of the machine tool workbench in a clamping manner through a screw, the pressing plate and the machine tool workbench clamp a bracket to be processed, a cushion block is fixed at the bottom of the pressing plate, and a standard block is arranged between the bracket to be processed and the machine tool workbench;
the mounting elements are provided with a plurality of groups; each group of mounting elements comprises a screw and a pressing plate; one end of the pressing plate is located in a corresponding pressing plate groove of the clamp main body, a cushion block is fixedly arranged below the other end of the pressing plate, and the pressing plate and a sliding block arranged in a corresponding sliding rail on the machine tool workbench are clamped and connected through the screw to fix the clamp main body and the machine tool workbench.
2. The rotational positioning apparatus for a stand according to claim 1, wherein the pin positioning members are provided in three groups, one group being provided above the positioning bosses and the other two groups being provided below the positioning bosses.
3. The rotary bracket positioning device according to claim 2, wherein the pin positioning assembly comprises a cylindrical pin and a cylindrical positioning hole provided at a corresponding position of the jig main body.
4. The rotational positioning apparatus for a rack as claimed in claim 3, wherein the cylindrical pin and the cylindrical positioning hole are slidably engaged.
5. The rotary bracket positioning device according to claim 4, wherein the receding groove is a major arc groove, and the center of the major arc is located at the position of the positioning boss.
6. The rotary positioning device for a bracket as set forth in claim 5, wherein the number of the platen grooves is three, and the platen grooves are respectively provided on the lower peripheral sides of the left and right end faces and the lower peripheral side of the rear end face of the jig main body; the mounting elements are three groups and correspond to the pressure plate grooves one by one.
7. The stent rotational positioning device of claim 5, wherein the clamp body and cylindrical pin are 40Cr alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121913478.5U CN215616578U (en) | 2021-08-16 | 2021-08-16 | Support rotary positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121913478.5U CN215616578U (en) | 2021-08-16 | 2021-08-16 | Support rotary positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215616578U true CN215616578U (en) | 2022-01-25 |
Family
ID=79898297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121913478.5U Active CN215616578U (en) | 2021-08-16 | 2021-08-16 | Support rotary positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215616578U (en) |
-
2021
- 2021-08-16 CN CN202121913478.5U patent/CN215616578U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 210038 No.9 Hengyi Road, Nanjing Economic and Technological Development Zone, Jiangsu Province Patentee after: NANJING CHANGJIANG ELECTRONICS GROUP Co.,Ltd. Address before: No. 9, Hengyi Road, Xingang Development Zone, Nanjing, Jiangsu 210038 Patentee before: NANJING CHANGJIANG ELECTRONICS GROUP Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |