CN211029046U - Frock clamp is used in processing of low temperature ball valve main valve body - Google Patents
Frock clamp is used in processing of low temperature ball valve main valve body Download PDFInfo
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- CN211029046U CN211029046U CN201921994123.6U CN201921994123U CN211029046U CN 211029046 U CN211029046 U CN 211029046U CN 201921994123 U CN201921994123 U CN 201921994123U CN 211029046 U CN211029046 U CN 211029046U
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- shaped positioning
- positioning seat
- valve body
- main valve
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Abstract
A tooling fixture for machining a main valve body of a low-temperature ball valve comprises a fixture base, a lower V-shaped positioning seat, a threaded upright post, an upper V-shaped positioning seat, a cross beam, a middle lower V-shaped positioning seat, a middle positioning upright post, a middle upper V-shaped positioning seat and a locking device; the two lower V-shaped positioning seats are symmetrically arranged on the clamp base, two threaded stand columns are symmetrically and vertically arranged on each lower V-shaped positioning seat, a cross beam is sleeved between the two threaded stand columns on the same side, the lower surface of the cross beam is provided with the upper V-shaped positioning seat through a locking device, and the locking device penetrates through the cross beam; the middle lower V-shaped positioning seat is arranged on the clamp base between the two lower V-shaped positioning seats, the two middle positioning upright columns are symmetrically and vertically arranged on the middle lower V-shaped positioning seat, and the middle upper V-shaped positioning seat is arranged at the top ends of the two middle positioning upright columns. The processing efficiency is improved, the overall weight of the tool is low, the valve body can be conveniently clamped and disassembled, and the physical output and labor cost of processing workers are greatly reduced.
Description
Technical Field
The utility model belongs to the technical field of the anchor clamps frock, in particular to frock clamp is used in processing of low temperature ball valve main valve body.
Background
In the digital production today, reasonable processing and product measurement greatly help to improve the processing precision. The internal structure of the main valve body of the low-temperature ball valve is complex, the requirements on the sealing performance of the valve body and the coaxiality of a valve body hole are high, great difficulty is brought to actual processing, a processing worker is required to guarantee the precision of the main valve body when processing is carried out, and the processing process and the measurement are carried out in time when the precision is required to be guaranteed when each process is finished. The existing machining process is basically finished on an automatic lathe and a boring machine, so that the improvement of the machining precision needs two aspects of guarantee. On the one hand, the processing personnel is required to have good processing experience and skilled processing skills: on the other hand, the method is also important, and a process designer is required to design a reasonable processing process and design tooling equipment which is convenient for processing and measuring products. Some enterprises specially manufacturing the cryogenic valve can design and produce the cryogenic valve according to various international standards, have detection levels and technologies meeting the international standards, and still have the phenomenon that the product quality is unstable during mass production. Therefore, the flange of the main valve body of the ball valve is structurally designed and improved, and the requirement of meeting the working condition is met.
The defects and shortcomings of the prior art are as follows:
a low-temperature upper-mounted ball valve main valve body is composed of an upper flange, a left flange, a right flange, a hole in the flange and each flow channel hole in the valve body are difficult to machine, required machining precision is high, however, a tool clamp for machining the main valve body of the upper-mounted low-temperature ball valve at present adopts simple double-V-shaped iron to clamp and finish machine the outer flange of a valve body blank, however, two simple V-shaped irons are used for clamping the left flange and the right flange of the valve body, positioning and reference finding are difficult to achieve in the machining process, clamping and repositioning are needed once a flange hole is machined, great troubles are brought in the machining process, particularly on a modern precision machine tool with an indexing device, the tool clamp does not well utilize the indexing device, machining efficiency and machining precision are greatly influenced, and a large amount of labor cost can be consumed in actual machining.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frock clamp is used in processing of low temperature ball valve main valve body to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tooling fixture for machining a main valve body of a low-temperature ball valve comprises a fixture base, a lower V-shaped positioning seat, a threaded upright post, an upper V-shaped positioning seat, a cross beam, a middle lower V-shaped positioning seat, a middle positioning upright post, a middle upper V-shaped positioning seat and a locking device; the two lower V-shaped positioning seats are symmetrically arranged on the clamp base, two threaded stand columns are symmetrically and vertically arranged on each lower V-shaped positioning seat, a cross beam is sleeved between the two threaded stand columns on the same side, the lower surface of the cross beam is provided with the upper V-shaped positioning seat through a locking device, and the locking device penetrates through the cross beam; a middle lower V-shaped positioning seat is arranged on the clamp base between the two lower V-shaped positioning seats, two middle positioning upright columns are symmetrically and vertically arranged on the middle lower V-shaped positioning seat, and middle upper V-shaped positioning seats are arranged at the top ends of the two middle positioning upright columns; the main valve body is arranged in a space enclosed by the lower V-shaped positioning seat, the middle lower V-shaped positioning seat, the upper V-shaped positioning seat and the middle upper V-shaped positioning seat.
Furthermore, the locking device comprises a mounting shaft, a compression bolt, a compression nut and a locking rod; the compression bolt penetrates through the cross beam and is propped against the upper V-shaped positioning seat; the top end of the compression bolt is vertically fixed with a locking rod, the compression bolt is sleeved with a compression nut, and the compression nut is provided with a plurality of mounting shafts.
Furthermore, a compression block is arranged between the compression bolt and the upper V-shaped positioning seat; a guide rod is arranged on the upper V-shaped positioning seat and penetrates through the cross beam; the cross beam is connected with the threaded upright post through a bolt.
Furthermore, positioning blocks are arranged between the main valve body and the lower V-shaped positioning seat, between the main valve body and the upper V-shaped positioning seat, between the main valve body and the middle lower V-shaped positioning seat, and between the main valve body and the middle upper V-shaped positioning seat.
Furthermore, a flat key is arranged between the clamp base and the lower V-shaped positioning seat.
Further, the clamp base is connected with the lower V-shaped positioning seat through a T-shaped groove bolt matched with a nut.
Furthermore, the middle upper V-shaped positioning seat is in threaded fit connection with the middle positioning upright post.
Compared with the prior art, the utility model discloses there is following technological effect:
the adjustable clamping structure is adopted, the base capable of adjusting the clamping position is utilized, and three pairs of V-shaped irons capable of adjusting the clamping force by utilizing the screw devices are matched, so that the three flange plates of the valve body blank are simultaneously clamped, the clamping and positioning can be conveniently carried out, the condition that a machining worker only needs to clamp once without dismounting is ensured, the three flange holes and the internal flowing holes can be sequentially machined by utilizing the dividing device of a machine tool, scrap iron is conveniently removed during machining, the requirements on machining precision such as coaxiality, position degree, parallelism and the like of all the holes are ensured, the machining efficiency is further improved, the overall weight of the tool is lower, the clamping and dismounting of the valve body are facilitated, and the physical output and labor cost of the machining worker are greatly reduced.
Compared with the prior art, the invention has the following technical effects:
(A) the invention utilizes the T-shaped hole on the bottom plate of the clamp to adjust the clamping position, and the bottom plate is convenient for the fixing device on the machine tool to fix.
(B) The invention utilizes the spiral clamping device for clamping, not only provides large clamping force through large moment and saves physical strength of workers, but also has adjustable height and convenient positioning and clamping.
(C) All parts of the clamp body are connected by screws and nuts, the clamp body can be detached, the whole mass is greatly reduced, and the clamp is convenient for workers to process, clean and maintain.
(D) And the column part only needs to unscrew the nut on one side, so that the column part can be rotated out, and a worker can conveniently detach the processed valve body to measure in the processing.
(E) The invention adopts three pairs of V-shaped irons to simultaneously cooperate with three flange plates of the clamping valve body, and can process three flange holes in sequence only by clamping once, thereby greatly improving the processing precision and bringing great convenience compared with the prior double V-shaped irons.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a right-view structural diagram of the present invention.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is a schematic perspective view of the present invention.
Wherein: 1-clamp base, 2-lower V-shaped positioning seat, 3-positioning block, 4-threaded upright post, 5-main valve body, 6-upper V-shaped positioning seat, 7-cross beam, 9-guide rod, 10-mounting shaft, 11-compression bolt, 12-compression nut, 13-locking rod, 15-compression block, 17-nut, 18-T-shaped groove bolt, 19-flat key, 20-middle lower V-shaped positioning seat, 21-middle positioning upright post and 22-middle upper V-shaped positioning seat.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1 to 4, a tooling fixture for machining a main valve body of a low-temperature ball valve comprises a fixture base 1, a lower V-shaped positioning seat 2, a threaded upright column 4, an upper V-shaped positioning seat 6, a cross beam 7, a middle lower V-shaped positioning seat 20, a middle positioning upright column 21, a middle upper V-shaped positioning seat 22 and a locking device; the two lower V-shaped positioning seats 2 are symmetrically arranged on the clamp base 1, two threaded upright columns 4 are symmetrically and vertically arranged on each lower V-shaped positioning seat 2, a cross beam 7 is sleeved between the two threaded upright columns 4 on the same side, an upper V-shaped positioning seat 6 is arranged on the lower surface of the cross beam 7 through a locking device, and the locking device penetrates through the cross beam 7; a middle lower V-shaped positioning seat 20 is arranged on the clamp base 1 between the two lower V-shaped positioning seats 2, two middle positioning upright columns 21 are symmetrically and vertically arranged on the middle lower V-shaped positioning seat 20, and middle upper V-shaped positioning seats 22 are arranged at the top ends of the two middle positioning upright columns 21; the main valve body is arranged in a space enclosed by the lower V-shaped positioning seat 2, the middle lower V-shaped positioning seat 20, the upper V-shaped positioning seat 6 and the middle upper V-shaped positioning seat 22.
The locking device comprises a mounting shaft 10, a compression bolt 11, a compression nut 12 and a locking rod 13; the compression bolt 11 penetrates through the cross beam 7 and is propped against the upper V-shaped positioning seat 6; the top end of the compression bolt 11 is vertically fixed with a locking rod 13, the compression bolt 11 is sleeved with a compression nut 12, and the compression nut 12 is provided with a plurality of mounting shafts 10.
A pressing block 15 is arranged between the pressing bolt 11 and the upper V-shaped positioning seat 6; a guide rod 9 is arranged on the upper V-shaped positioning seat 6, and the guide rod 9 penetrates through the cross beam 7; the cross beam 7 and the threaded upright 4 are connected through bolts.
The main valve body and the lower V-shaped positioning seat 2, the main valve body and the upper V-shaped positioning seat 6, the main valve body and the middle lower V-shaped positioning seat 20, and the main valve body and the middle upper V-shaped positioning seat 22 are all provided with positioning blocks 3.
A flat key 19 is arranged between the clamp base 1 and the lower V-shaped positioning seat 2.
The clamp base 1 and the lower V-shaped positioning seat 2 are connected through a T-shaped groove bolt 18 and a nut.
The middle upper V-shaped positioning seat 22 is in threaded fit connection with the middle positioning upright post 21.
The clamping shown in figure 1 is the upper flange of the valve body, and as the clamping force is mainly applied to the left flange and the right flange, the clamping device of the upper flange is relatively simple, the upper surface of the flange is pressed by the cooperation of the middle upper V-shaped positioning seat 22 and the pressing block, the openable middle positioning upright post 21 locked by the nut rotates around the middle positioning upright post, and the opening and closing of the upper V-shaped iron clamping plate can be adjusted, so that the valve body is convenient to disassemble. The middle lower V-shaped positioning seat bears the weight of the valve body and is clamped by the clamping force of the upper V-shaped block through the matching of the upper V-shaped iron and the lower V-shaped iron, and the position of the whole clamping mechanism is adjusted by utilizing the matching of the T-shaped guide rail and the T-shaped screw on the bottom plate 1 so as to facilitate the positioning before clamping.
The left side view shows the clamping condition of the left flange and the right flange, the clamping condition is realized by adopting a spiral clamping mode because the clamping force required by the left flange and the right flange is larger, the whole set of spiral device consists of a compression bolt 11, a locking rod 13, a compression nut 12, an installation shaft 10, a guide rod 9 and a compression block 15, a processing worker can apply force on the locking rod, the compression bolt is rotated to move downwards in the compression nut, and large torsion is applied to the compression block in the moving process and pushes an upper V-shaped positioning seat 6 to compress the upper surface of the left flange of the valve body.
The upper surface of the flange is pressed down by the cooperation of the pressing block of the upper V-shaped positioning seat 6, and the openable threaded upright post 4 locked by the nut winds the threaded upright post 4 at the other side, so that the opening and closing of the upper V-shaped iron clamping plate can be adjusted, and the valve body is convenient to disassemble. The lower V-shaped positioning seat 2 bears the weight of the valve body and is clamped by the clamping force of the upper V-shaped block through the matching of the upper V-shaped iron and the lower V-shaped iron, and the position of the whole clamping mechanism is adjusted by utilizing the matching of the T-shaped guide rail and the T-shaped screw on the clamp base 1 so as to be positioned before clamping. The cross beam 7 connects the whole screw device and the upright column, bears the force of the clamping mechanism of the upper half part, fastens the flange, is used for positioning the relative position of the cross beam 7 and the upright column, locks the whole upright column and the cross beam and reinforces the upper half part.
Claims (7)
1. A tool clamp for machining a main valve body of a low-temperature ball valve is characterized by comprising a clamp base (1), a lower V-shaped positioning seat (2), a threaded upright post (4), an upper V-shaped positioning seat (6), a cross beam (7), a middle lower V-shaped positioning seat (20), a middle positioning upright post (21), a middle upper V-shaped positioning seat (22) and a locking device; the two lower V-shaped positioning seats (2) are symmetrically arranged on the clamp base (1), two threaded upright columns (4) are symmetrically and vertically arranged on each lower V-shaped positioning seat (2), a cross beam (7) is sleeved between the two threaded upright columns (4) on the same side, an upper V-shaped positioning seat (6) is arranged on the lower surface of the cross beam (7) through a locking device, and the locking device penetrates through the cross beam (7); a middle lower V-shaped positioning seat (20) is arranged on the clamp base (1) between the two lower V-shaped positioning seats (2), two middle positioning upright columns (21) are symmetrically and vertically arranged on the middle lower V-shaped positioning seat (20), and middle upper V-shaped positioning seats (22) are arranged at the top ends of the two middle positioning upright columns (21); the main valve body is arranged in a space enclosed by the lower V-shaped positioning seat (2), the middle lower V-shaped positioning seat (20), the upper V-shaped positioning seat (6) and the middle upper V-shaped positioning seat (22).
2. A tooling clamp for machining a main valve body of a low-temperature ball valve according to claim 1, wherein the locking device comprises a mounting shaft (10), a compression bolt (11), a compression nut (12) and a locking rod (13); a compression bolt (11) penetrates through the cross beam (7) and is propped against the upper V-shaped positioning seat (6); a locking rod (13) is vertically fixed at the top end of the compression bolt (11), a compression nut (12) is sleeved on the compression bolt (11), and a plurality of mounting shafts (10) are arranged on the compression nut (12).
3. The tooling clamp for machining the main valve body of the low-temperature ball valve as claimed in claim 2, wherein a compression block (15) is arranged between the compression bolt (11) and the upper V-shaped positioning seat (6); a guide rod (9) is arranged on the upper V-shaped positioning seat (6), and the guide rod (9) penetrates through the cross beam (7); the cross beam (7) is connected with the threaded upright post (4) through a bolt.
4. A tool clamp for machining a main valve body of a low-temperature ball valve according to claim 1, wherein positioning blocks (3) are arranged between the main valve body and the lower V-shaped positioning seat (2), the main valve body and the upper V-shaped positioning seat (6), the main valve body and the middle lower V-shaped positioning seat (20), and the main valve body and the middle upper V-shaped positioning seat (22).
5. A tool clamp for machining a main valve body of a low-temperature ball valve according to claim 1, wherein a flat key (19) is arranged between the clamp base (1) and the lower V-shaped positioning seat (2).
6. A tool clamp for machining a main valve body of a low-temperature ball valve according to claim 1, wherein the clamp base (1) and the lower V-shaped positioning seat (2) are connected through a T-shaped groove bolt (18) and a nut in a matched mode.
7. A tool clamp for machining a main valve body of a low-temperature ball valve according to claim 1, wherein the middle upper V-shaped positioning seat (22) is in threaded fit connection with the middle positioning column (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921994123.6U CN211029046U (en) | 2019-11-18 | 2019-11-18 | Frock clamp is used in processing of low temperature ball valve main valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921994123.6U CN211029046U (en) | 2019-11-18 | 2019-11-18 | Frock clamp is used in processing of low temperature ball valve main valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211029046U true CN211029046U (en) | 2020-07-17 |
Family
ID=71566912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921994123.6U Expired - Fee Related CN211029046U (en) | 2019-11-18 | 2019-11-18 | Frock clamp is used in processing of low temperature ball valve main valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211029046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695735A (en) * | 2019-11-18 | 2020-01-17 | 长安大学 | Work fixture |
-
2019
- 2019-11-18 CN CN201921994123.6U patent/CN211029046U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110695735A (en) * | 2019-11-18 | 2020-01-17 | 长安大学 | Work fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20201118 |
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| CF01 | Termination of patent right due to non-payment of annual fee |