CN211639141U - Outer disc processing frock of valve body - Google Patents
Outer disc processing frock of valve body Download PDFInfo
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- CN211639141U CN211639141U CN201922354663.4U CN201922354663U CN211639141U CN 211639141 U CN211639141 U CN 211639141U CN 201922354663 U CN201922354663 U CN 201922354663U CN 211639141 U CN211639141 U CN 211639141U
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- valve body
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- shaft
- connecting disc
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- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000003754 machining Methods 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a processing tool for the outer circular surface of a valve body, which comprises an installation seat, wherein a positioning piece is detachably fixed on the installation seat; the positioning piece is matched with the central through hole of the valve body; the positioning piece comprises a connecting disc, a positioning shaft is coaxially arranged on the connecting disc, and the positioning shaft and the connecting disc are integrally processed and formed; the positioning shaft is sequentially provided with a first shaft section, a second shaft section, a third shaft section and a screw rod part, and the first shaft section, the second shaft section and the third shaft section are respectively matched with a first hole, a second hole and a third hole in the valve body; the screw rod part extends out of the round shaft part, a pressing block is sleeved on the screw rod part, and the pressing block is pressed and fixed on the end face of the round shaft part through a pressing nut; the utility model can ensure the coaxiality of the outer circular surface of the valve body round shaft part and the central through hole, ensure the processing precision of the subsequent valve body characteristics, improve the processing quality of the valve body and improve the valve assembly precision; the reworking and reworking of the workpiece can be reduced, and the production efficiency is improved; the rejection rate can be reduced, the waste of raw materials is reduced, and the production cost is reduced.
Description
Technical Field
The utility model relates to an outer disc processing frock of valve body belongs to machine tooling fixture technical field.
Background
Please refer to fig. 2 and fig. 3 together. Fig. 2 and 3 are schematic structural views of a conventional valve body, the valve body is composed of a square head portion 200 and a round shaft portion 300, the square head portion 200 and the round shaft portion 300 are coaxially arranged, a central through hole 400 is further arranged inside the valve body, the central through hole 400 is a stepped hole, and the central through hole 400 is provided with a first hole 401, a second hole 402 and a third hole 403, the hole diameters of which are sequentially reduced; the valve body is of an integrated structure; in order to improve the precision of later-stage valve assembly and the matching among various parts of the valve, the coaxiality of the central through hole 400 of the valve body and the outer circular surface of the round shaft part 300 is required to be ensured, the valve body is usually obtained by machining round steel in the prior art, and in actual production, the central through hole 400 is generally machined firstly, then the round shaft part 300 and the square head part 200 are machined in sequence, and then other characteristics are machined.
When the round shaft part 300 is machined, in the prior art, a workpiece is generally directly clamped by a chuck on a lathe to machine the round shaft part 300, and after the round shaft part 300 is machined by the machining method, the coaxiality error between the outer circular surface and the central through hole 400 is large, so that the machining of the subsequent valve body characteristics is influenced, the machining quality of the whole valve body is influenced, the assembly precision of the valve at the later stage is low, and the product quality is poor; some of the products need to be reworked and repaired, so that the time and the labor are wasted, and the production efficiency is low; the error is large, the product can only be treated as a waste product, the rejection rate is high, the waste of raw materials is serious, and the production cost is high.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a processing tool for the outer circular surface of the valve body, which can ensure the coaxiality of the outer circular surface of the circular shaft part of the valve body and the central through hole, ensure the processing precision of the subsequent valve body characteristics, improve the processing quality of the valve body and improve the valve assembly precision; the reworking and reworking of the workpiece can be reduced, and the production efficiency is improved; the rejection rate can be reduced, the waste of raw materials is reduced, and the production cost is reduced.
For solving the technical problem, the utility model discloses a following technical scheme: a valve body outer circular surface machining tool comprises an installation base, wherein a positioning piece is detachably fixed on the installation base; the positioning piece is used for positioning the valve body and matched with the central through hole of the valve body; the positioning piece comprises a connecting disc, and the connecting disc is circular; the connecting disc is coaxially provided with a positioning shaft, and the positioning shaft and the connecting disc are integrally processed and formed; the positioning shaft is sequentially provided with a first shaft section, a second shaft section, a third shaft section and a screw part, and the first shaft section is arranged close to one end of the connecting disc; the first shaft section, the second shaft section and the third shaft section are respectively matched with a first hole, a second hole and a third hole in the valve body;
the screw rod portion stretches out outside the round shaft portion, the cover is equipped with the compact heap in the screw rod portion, the compact heap is circular, the compact heap compresses tightly through gland nut and fixes on the terminal surface of round shaft portion.
Further, the second shaft section is in clearance fit with the second hole, and the fit precision is 7 grades; the roughness of the circular surfaces of the second shaft section and the first hole is R1.6.
Further, the mounting seat is integrally formed, the mounting seat comprises a clamping part, and the clamping part is of a cylindrical structure; one end of the clamping part is provided with a connecting flange, the connecting flange is circular, and a plurality of threaded holes are circumferentially formed in the connecting flange.
Furthermore, the connecting disc is fixedly connected with the connecting flange through a bolt; a plurality of bolt holes are formed in the connecting disc along the circumferential direction, and the diameter of the central circle of the bolt holes in the connecting disc is the same as that of the central circle of the threaded holes in the connecting flange; the number of the bolt holes on the connecting disc is the same as that of the threaded holes on the connecting flange.
Further, the outer diameter of the pressing block is smaller than the outer diameter of the round shaft portion and larger than the inner diameter of the third hole.
Further, a gap of 1-1.5mm is arranged between the first shaft section and the first hole; and a gap of 1-1.5mm is arranged between the third shaft section and the third hole.
The utility model adopts the above technical scheme after, compare with prior art, have following advantage:
the utility model can ensure the coaxiality of the outer circular surface of the valve body round shaft part and the central through hole, ensure the processing precision of the subsequent valve body characteristics, improve the processing quality of the valve body and improve the valve assembly precision; the reworking and reworking of the workpiece can be reduced, and the production efficiency is improved; the rejection rate can be reduced, the waste of raw materials is reduced, and the production cost is reduced.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of a valve body;
FIG. 3 is a cross-sectional view of the valve body;
in the figure, the position of the upper end of the main shaft,
1-mounting seat, 11-clamping part, 12-connecting flange, 2-positioning piece, 21-connecting disc, 22-positioning shaft, 221-first shaft section, 222-second shaft section, 223-third shaft section, 224-screw part, 3-pressing block, 4-locking nut, 5-bolt, 200-square head part, 300-round shaft part, 400-central through hole, 401-first hole, 402-second hole and 403-third hole.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
Embodiment 1 processing tool for outer circular surface of valve body
As shown in fig. 1, the utility model provides an outer disc processing frock of valve body, including mount pad 1, can dismantle on the mount pad 1 and be fixed with setting element 2.
The mounting seat 1 is integrally formed, the mounting seat 1 comprises a clamping part 11, and the clamping part 11 is of a cylindrical structure; when in processing, the three-jaw chuck of the machine tool clamps the clamping part 11; one end of the clamping portion 11 is provided with a connecting flange 12, the connecting flange 12 is circular, and a plurality of threaded holes are circumferentially formed in the connecting flange 12.
The positioning piece 2 is used for positioning the valve body, and the positioning piece 2 is matched with the central through hole 400 of the valve body so as to ensure the coaxiality of the central through hole 400 and the circular shaft part 300 during machining; the positioning piece 2 comprises a connecting disc 21, the connecting disc 21 is circular, a plurality of bolt holes are formed in the connecting disc 21 along the circumferential direction, and the diameter of the center circle of the bolt holes in the connecting disc 21 is the same as that of the center circle of the threaded holes in the connecting flange 12.
The number of the bolt holes on the connecting disc 21 is the same as that of the threaded holes on the connecting flange 12, and the bolt holes and the threaded holes are matched with each other.
The connecting disc 21 is fixedly connected with the connecting flange 12 through bolts 5.
A positioning shaft 22 is coaxially arranged at the side part of the connecting disc 21, and the connecting disc 21 and the positioning shaft 22 are integrally processed and formed; the positioning shaft 22 is sequentially provided with a first shaft section 221, a second shaft section 222, a third shaft section 223 and a screw part 224, wherein the first shaft section 221 is arranged close to one end of the connecting disc 21; the first 221, second 222 and third 223 shaft segments cooperate with first 401, second 402 and third 403 bores, respectively, in the valve body.
Wherein a gap of 1-1.5mm is arranged between the first shaft section 221 and the first hole 401; a gap of 1-1.5mm is arranged between the third shaft segment 223 and the third hole 403; the second shaft section 222 and the second hole 402 are in clearance fit, and the fit precision is 7 grades; the second shaft section 222 and the first hole 401 have a circular surface roughness of R1.6.
The screw rod part 224 extends out of the round shaft part 300, a pressing block 3 is sleeved on the screw rod part 224, the pressing block 3 is round, and the outer diameter of the pressing block 3 is smaller than the outer diameter of the round shaft part 300 and larger than the inner diameter of the third hole 403; the pressing block 3 is pressed and fixed on the end face of the round shaft part 300 through a pressing nut 4.
Different specifications can be made to setting element 2 according to valve body specification and dimension's size, and when the valve body of different specifications is processed to needs, install the setting element 2 of required specification on fixing base 1, and this process fixing base 1 need not take off from the three-jaw chuck, and it is convenient to change the clamping.
The utility model discloses a theory of operation:
during the use, pass the central through-hole 400 of valve body with the location axle 22 of setting element 2 to compress tightly the compact heap 3 with lock nut 4 and fix on the terminal surface of round axle portion 300, in order to press from both sides the valve body and tightly fix on setting element 2, then fix setting element 2 on mount pad 1 through bolt 5, then press from both sides the clamping part 101 of fixed fixing base 1 with the three-jaw chuck of lathe, accomplish the clamping location of valve body.
The utility model can ensure the coaxiality of the outer circular surface of the valve body round shaft part and the central through hole, ensure the processing precision of the subsequent valve body characteristics, improve the processing quality of the valve body and improve the valve assembly precision; the reworking and reworking of the workpiece can be reduced, and the production efficiency is improved; the rejection rate can be reduced, the waste of raw materials is reduced, and the production cost is reduced.
The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.
Claims (6)
1. The utility model provides an outer disc processing frock of valve body which characterized in that: the device comprises a mounting seat (1), wherein a positioning piece (2) is detachably fixed on the mounting seat (1); the positioning piece (2) is used for positioning the valve body, and the positioning piece (2) is matched with a central through hole (400) of the valve body; the positioning piece (2) comprises a connecting disc (21), and the connecting disc (21) is circular; the connecting disc (21) is coaxially provided with a positioning shaft (22), and the positioning shaft (22) and the connecting disc (21) are integrally machined and formed; the positioning shaft (22) is sequentially provided with a first shaft section (221), a second shaft section (222), a third shaft section (223) and a screw part (224), and the first shaft section (221) is arranged close to one end of the connecting disc (21); the first shaft section (221), the second shaft section (222) and the third shaft section (223) are respectively matched with a first hole (401), a second hole (402) and a third hole (403) in the valve body;
screw rod portion (224) stretch out outside round shaft portion (300), the cover is equipped with compact heap (3) on screw rod portion (224), compact heap (3) are circular, compact heap (3) compress tightly through gland nut (4) and fix on the terminal surface of round shaft portion (300).
2. The valve body outer circular surface machining tool according to claim 1, characterized in that: the second shaft section (222) is in clearance fit with the second hole (402), and the fit precision is 7 grades; the second shaft section (222) and the first hole (401) have a circular surface roughness of R1.6.
3. The valve body outer circular surface machining tool according to claim 1, characterized in that: the mounting seat (1) is integrally formed, the mounting seat (1) comprises a clamping part (11), and the clamping part (11) is of a cylindrical structure; one end of the clamping part (11) is provided with a connecting flange (12), the connecting flange (12) is circular, and a plurality of threaded holes are circumferentially formed in the connecting flange (12).
4. The valve body outer circular surface machining tool according to claim 3, characterized in that: the connecting disc (21) is fixedly connected with the connecting flange (12) through a bolt (5); a plurality of bolt holes are formed in the connecting disc (21) along the circumferential direction, and the diameter of the central circle of the bolt holes in the connecting disc (21) is the same as that of the central circle of the threaded holes in the connecting flange (12); the number of the bolt holes in the connecting disc (21) is the same as that of the threaded holes in the connecting flange (12).
5. The valve body outer circular surface machining tool according to claim 1, characterized in that: the outer diameter of the pressing block (3) is smaller than the outer diameter of the round shaft part (300) and larger than the inner diameter of the third hole (403).
6. The valve body outer circular surface machining tool according to claim 1, characterized in that: a clearance of 1-1.5mm is arranged between the first shaft section (221) and the first hole (401); a gap of 1-1.5mm is arranged between the third shaft section (223) and the third hole (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922354663.4U CN211639141U (en) | 2019-12-25 | 2019-12-25 | Outer disc processing frock of valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922354663.4U CN211639141U (en) | 2019-12-25 | 2019-12-25 | Outer disc processing frock of valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211639141U true CN211639141U (en) | 2020-10-09 |
Family
ID=72698733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922354663.4U Active CN211639141U (en) | 2019-12-25 | 2019-12-25 | Outer disc processing frock of valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211639141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046986A (en) * | 2021-11-30 | 2022-02-15 | 上海中远海运重工有限公司 | Valve pump pressure test bed |
-
2019
- 2019-12-25 CN CN201922354663.4U patent/CN211639141U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046986A (en) * | 2021-11-30 | 2022-02-15 | 上海中远海运重工有限公司 | Valve pump pressure test bed |
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