CN216138545U - Processing and positioning fixture for inner cavity surface of communication box - Google Patents
Processing and positioning fixture for inner cavity surface of communication box Download PDFInfo
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- CN216138545U CN216138545U CN202121911268.2U CN202121911268U CN216138545U CN 216138545 U CN216138545 U CN 216138545U CN 202121911268 U CN202121911268 U CN 202121911268U CN 216138545 U CN216138545 U CN 216138545U
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Abstract
The utility model discloses a positioning fixture for processing the inner cavity surface of a communication box, which comprises a base, a telescopic positioning pin, a telescopic lifting column, a heightening block and a pneumatic pressing assembly, wherein the telescopic positioning pin comprises a plurality of groups of telescopic cylinders, an air jacking seat and a positioning pin, the telescopic lifting column comprises a plurality of groups of telescopic cylinders, air jacking seats and lifting columns, the heightening block is arranged corresponding to the vertical wall of the periphery of a shrinkage-proof hole at the four corners of the communication box, the pneumatic pressing assembly comprises a pressing cylinder, a positioning seat and a pressing rod, the fixture adopts the positioning hole arranged on the base corresponding to the outer wall of the communication box to mount the telescopic positioning pin, the positioning accuracy is ensured, the heightening block is arranged on the vertical wall of the periphery of the mounting hole at the four corners of the communication box, the vertical wall of the periphery of the mounting hole is pressed and clamped by combining the pneumatic pressing assembly, the clamping is ensured to be firm, and the positioning pin at the same time is retracted, so that a heat radiation fin of the communication box is not contacted with the base or other clamping assemblies, the radiating fins are not clamping stress points, and the appearance is protected.
Description
Technical Field
The utility model relates to the technical field of clamp equipment, in particular to a positioning clamp for processing an inner cavity surface of a communication box.
Background
The prior communication box needs to finish and finish the local structure of an inner cavity after being formed and finish a sealing frame around the box, the outer wall surface of the formed communication box is provided with a plurality of layers of radiating fins, because the wall thickness is thin, the radiating fins can not be touched in the clamping and positioning process or can not become direct stress points of clamping acting force, therefore, under the condition of fully combining the product structure, a positioning clamp needs to be specially designed, so that the radiating fins can not directly become the clamping stress points, the positioning is accurate, the clamping is firm, if the communication box which is just demoulded is clamped by the traditional positioning clamp, the radiating fin structure can be damaged, the appearance of the product is damaged, even if the internal structure of the product is finished by finish machining, the appearance damage also becomes a defective product, therefore, a positioning clamp special for the communication box needs to be specially designed, the clamping device has the advantages of ensuring that the appearance of a product is not damaged, being accurate in positioning and firm in clamping, and being beneficial to improving the production efficiency.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: in view of the technical requirements in the background art, a communication box inner cavity surface processing positioning fixture is designed, a base is provided with a positioning hole corresponding to the outer wall of a communication box, a telescopic positioning pin is installed, accurate positioning is guaranteed, then a block is arranged on a vertical wall corresponding to the periphery of a four-corner mounting hole of the communication box on the base, the vertical wall of the periphery of the four-corner mounting hole of the communication box is pressed and clamped tightly by a pneumatic pressing assembly combined with four corners, clamping is guaranteed to be firm, the telescopic positioning pin at the bottom is withdrawn simultaneously, heat dissipation fins on the outer wall of the communication box are prevented from contacting the base or other clamping assemblies, the heat dissipation fins are prevented from becoming clamping stress points, and the structure is simple and practical.
The technical scheme adopted for solving the problems is as follows:
a positioning fixture for processing an inner cavity surface of a communication box comprises a base, a telescopic positioning pin, a telescopic lifting column, a block for elevating and a pneumatic pressing assembly.
The telescopic positioning pin comprises a plurality of groups of telescopic cylinders fixed on the lower end surface of the base, an air top seat and positioning pins, the lower ends of the positioning pins are in clearance fit with matching holes formed in the side wall of the air top seat, a piston is arranged at the front end of a telescopic rod of the telescopic cylinders and is tightly matched with a cylindrical cavity in the air top seat, the plurality of groups of positioning pins are jacked up and extended under the jacking action of the telescopic cylinders and are matched with positioning holes on the outer wall of a communication box arranged on the upper end surface of the base to perform positioning,
the retractable lifting column comprises a plurality of groups of retractable cylinders fixed on the lower end face of the base, a gas jacking seat and a lifting column, the lower end of the lifting column is in clearance fit with a matching hole arranged on the side wall of the gas jacking seat, a piston is arranged at the front end of a retractable rod of the retractable cylinder and is tightly matched with a cylindrical cavity in the gas jacking seat, under the pushing action of the retractable cylinders, the plurality of groups of lifting columns are jacked up and extended out to jointly lift the heat dissipation fins on the outer wall of the communication box arranged on the upper end face of the base so as to buffer the impact force of the communication box, and after the communication box is clamped by a heightening block and a pneumatic pressing component, the lifting rod retracts downwards,
the heightening block is fixed on the upper end surface of the base and arranged corresponding to the vertical walls at the periphery of the anti-shrinkage holes at the four corners of the communication box,
the pneumatic pressing assembly comprises a pressing cylinder, a positioning seat and a pressing rod, the pressing cylinder is fixed on the positioning seat, the positioning seat is fixed on the base, the pressing rod is fixedly connected with an ejector rod of the pressing cylinder, and the front end of the pressing rod presses and clamps the vertical wall corresponding to the periphery of the four-corner mounting hole.
Furthermore, the distance between the heightening block and the base is greater than the distance between the lowest end of the radiating fin of the communication box and the anti-shrinkage hole.
Furthermore, the positioning pin is matched with the sleeve to raise the positioning height, the sleeve is fixed on the base, and the sleeve is over against the reference positioning hole on one side of the shrinkage-proof hole of the communication box.
Furthermore, a positioning plate is connected between the radiating fins, and a positioning hole is formed in the positioning plate.
The utility model has the beneficial effects that:
this communication box inner chamber face processing positioning fixture adopts the locating hole installation retractable locating pin that sets up on the corresponding communication box outer wall on the base, guarantees that the location is accurate, sets up the bed hedgehopping piece by the upright wall that corresponds communication box four corners mounting hole periphery on the base again, and the pneumatic subassembly of pressing in combination four corners is pressed the upright wall of communication box four corners mounting hole periphery and is pressed from both sides tightly, guarantees that the clamping is firm, and withdraw bottom retractable locating pin simultaneously, does not let the heat radiation fins of communication box outer wall contact base or other clamping components, makes heat radiation fins not become the clamping stress point, the protection outward appearance.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic structural view of the clamping state of the positioning fixture for processing the inner cavity surface of the communication box in this embodiment;
FIG. 2 is a side bottom view of the clamping state of the positioning fixture for processing the inner cavity surface of the communication box in the embodiment;
FIG. 3 is a perspective view of the positioning fixture for processing the inner cavity surface of the communication box in the present embodiment;
FIG. 4 is a perspective view of the communication box of the present embodiment;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a side bottom view of the communication box of the present embodiment;
FIG. 7 is an enlarged view of a portion of FIG. 6 at B;
FIG. 8 is a sectional view of the retractable positioning pin according to the present embodiment;
the device comprises a base, a pressing cylinder, a threaded hole column, a communication box, a pressing rod, a heat dissipation fin, a telescopic cylinder, an air top seat, a lifting column, a positioning seat, a cushion block, a sleeve, a positioning pin, a communication box, a mounting hole, a first shrinkage hole, a sealing frame, a cavity box bottom, a positioning hole, a second shrinkage prevention hole, a datum positioning hole and a piston, wherein the base is 1-arranged, the pressing cylinder is 2-arranged, the threaded hole column is 3-arranged, the communication box is 4-arranged, the pressing rod is 5-arranged, the heat dissipation fin is 6-arranged, the telescopic cylinder is 8-arranged, the air top seat is 9-arranged, the positioning seat is 10-arranged, the cushion block is 11-arranged, the sleeve is 13-arranged, the positioning pin is 14-arranged, the inner cavity of the communication box is 15-arranged, the vertical wall is 16-arranged, the first shrinkage prevention hole is 17-arranged, the sealing frame is 19-arranged, the inner cavity box bottom is arranged, the positioning hole is 20-arranged, the second shrinkage prevention hole is 21-arranged, and the datum positioning hole is arranged.
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.
Referring to fig. 1-8, the present embodiment provides a positioning fixture for processing an inner cavity surface of a communication box, which includes a base 1, a retractable positioning pin 13, a retractable lifting column 9, a padding block 11, and a pneumatic pressing assembly.
Specifically, referring to fig. 8, the retractable positioning pin 13 includes a plurality of sets of retractable cylinders 7 fixed on the lower end surface of the base 1, a gas cap 8 and a positioning pin 13, the lower end of the positioning pin 13 is in clearance fit with a fitting hole formed in the side wall of the gas cap 8, a piston 23 is arranged at the front end of a retractable rod of the retractable cylinder 7, the piston 23 is in close fit with a cylindrical cavity inside the gas cap 8, and under the pushing action of the retractable cylinder 7, the plurality of sets of positioning pins 13 are pushed up and extended out to be matched with positioning holes 20 formed in the outer wall of the communication box 4 on the upper end surface of the base 1 to perform positioning.
Referring to fig. 3, the block 11 is fixed on the upper end surface of the base 1 and arranged corresponding to the vertical walls 15 on the periphery of the anti-shrinkage holes at the four corners of the communication box 4.
The pneumatic pressing assembly comprises a pressing cylinder 2, a positioning seat 10 and a pressing rod 5, the pressing cylinder 2 is fixed on the positioning seat 10, the positioning seat 10 is fixed on the base 1, the pressing rod 5 is fixedly connected with an ejector rod of the pressing cylinder 2, and the front end of the pressing rod 5 is pressed and clamped by a vertical wall 15 corresponding to the periphery of a four-corner mounting hole 16.
In a further embodiment, the height of the block 11 from the base 1 is greater than the height of the lowest end of the heat dissipation fins 6 of the communication box 4 from the anti-shrinkage hole.
In a further embodiment, the positioning pin 13 is further matched with the sleeve 12 to raise the positioning height, the sleeve 12 is fixed on the base 1, and the sleeve 12 faces the reference positioning hole 22 on the side of the anti-shrinkage hole of the communication box 4.
In a further embodiment, a positioning plate is further connected between the heat dissipation fins 6, and a positioning hole 20 is formed in the positioning plate.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, the scope of the present invention being defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a communication box inner chamber face processing positioning fixture which characterized in that: comprises a base, a telescopic positioning pin, a telescopic lifting column, a block for elevating and a pneumatic pressing component,
the telescopic positioning pin comprises a plurality of groups of telescopic cylinders fixed on the lower end surface of the base, an air top seat and positioning pins, the lower end of the positioning pin is in clearance fit with a matching hole arranged on the side wall of the air top seat, a piston is arranged at the front end of a telescopic rod of the telescopic cylinder and is tightly matched with a cylindrical cavity in the air top seat, the plurality of groups of positioning pins are matched with positioning holes arranged on the outer wall of the communication box on the upper end surface of the base to perform positioning,
the telescopic lifting column comprises a plurality of groups of telescopic cylinders fixed on the lower end surface of the base, a gas jacking seat and a lifting column, the lower end of the lifting column is in clearance fit with a matching hole arranged on the side wall of the gas jacking seat, the front end of a telescopic rod of the telescopic cylinder is provided with a piston, the piston is tightly matched with a cylindrical cavity in the gas jacking seat, the plurality of groups of lifting columns jointly lift heat dissipation fins arranged on the outer wall of a communication box on the upper end surface of the base, and after the communication box is clamped by a heightening block and a pneumatic pressing component, the lifting rod retracts downwards,
the heightening block is fixed on the upper end surface of the base and arranged corresponding to the vertical walls at the periphery of the anti-shrinkage holes at the four corners of the communication box,
the pneumatic pressing assembly comprises a pressing cylinder, a positioning seat and a pressing rod, the pressing cylinder is fixed on the positioning seat, the positioning seat is fixed on the base, the pressing rod is fixedly connected with an ejector rod of the pressing cylinder, and the front end of the pressing rod presses and clamps the vertical wall corresponding to the periphery of the four-corner mounting hole.
2. The communication box inner cavity surface machining positioning fixture as claimed in claim 1, wherein: the height of the padding block from the base is greater than the height of the lowest end of the heat dissipation fin of the communication box from the shrinkage-proof hole.
3. The communication box inner cavity surface processing positioning fixture of claim 2, characterized in that: and positioning plates are also connected among the radiating fins, and positioning holes are formed in the positioning plates.
4. The communication box inner cavity surface machining positioning fixture as claimed in claim 1, wherein: the positioning pin is further matched with the sleeve to raise the positioning height, the sleeve is fixed on the base, and the sleeve is over against the reference positioning hole on one side of the shrinkage-proof hole of the communication box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911268.2U CN216138545U (en) | 2021-08-16 | 2021-08-16 | Processing and positioning fixture for inner cavity surface of communication box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121911268.2U CN216138545U (en) | 2021-08-16 | 2021-08-16 | Processing and positioning fixture for inner cavity surface of communication box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216138545U true CN216138545U (en) | 2022-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121911268.2U Active CN216138545U (en) | 2021-08-16 | 2021-08-16 | Processing and positioning fixture for inner cavity surface of communication box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216138545U (en) |
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2021
- 2021-08-16 CN CN202121911268.2U patent/CN216138545U/en active Active
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