CN112091669B - Positioning fixture for processing water meter cover - Google Patents
Positioning fixture for processing water meter cover Download PDFInfo
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- CN112091669B CN112091669B CN202010960401.7A CN202010960401A CN112091669B CN 112091669 B CN112091669 B CN 112091669B CN 202010960401 A CN202010960401 A CN 202010960401A CN 112091669 B CN112091669 B CN 112091669B
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- pull rod
- water meter
- jacket
- meter cover
- bolt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Mechanical Engineering (AREA)
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Abstract
The invention provides a positioning fixture for machining a water meter cover, and belongs to the technical field of machinery. It has solved the not good problem of current anchor clamps clamping precision. The positioning fixture for processing the water meter cover comprises an annular base and a pull rod arranged in the base in a sliding manner, wherein a mandrel is vertically fixed on the base, an elastic clamping sleeve is sleeved outside the mandrel, the outer wall of the upper end of the mandrel is a first conical surface with the diameter gradually increasing downwards, the inner wall of the upper end of the clamping sleeve is a second conical surface matched with the first conical surface, and the first conical surface is in close contact with the second conical surface; the side wall of the jacket is provided with a strip-shaped gap in a penetrating way, the length of the gap extends along the axial direction of the jacket, the upper end of the gap extends to the top wall of the jacket, and a plurality of gaps are uniformly distributed along the circumferential direction of the jacket; there is the clearance between cover diapire and the pull rod roof, presss from both sides the cover and passes through the bolt with the pull rod and link firmly, and both axes of bolt and pull rod are parallel, and the bolt has a plurality ofly and along pull rod circumference equipartition, and bolt rod portion all overlaps outward has the body, and body both ends face sticiss respectively on pull rod roof and the cover diapire that presss from both sides. The invention has high clamping precision.
Description
Technical Field
The invention belongs to the technical field of machinery, relates to a positioning fixture, and particularly relates to a positioning fixture for processing a water meter cover.
Background
The water meter cover is a cover of the water meter, and the structure of the water meter cover is shown in figure 1, and the water meter cover comprises a ring body 1a, and a circle of blocky backer 1b is arranged on the outer wall of the ring body 1 a.
When the existing water meter cover is milled or drilled, a three-jaw chuck or a hydraulic cylinder clamp is generally adopted for positioning, but the shell of the water meter cover is thin and is easy to deform, so that the clamping and positioning are inaccurate, and the subsequent processing precision is influenced.
Disclosure of Invention
The invention aims to provide a positioning clamp for processing a water meter cover, which has high positioning precision and aims to solve the problems in the prior art.
The purpose of the invention can be realized by the following technical scheme: the positioning fixture for processing the water meter cover comprises an annular base and a pull rod arranged in the base in a vertically sliding manner, and is characterized in that a mandrel is vertically fixed on the base, the mandrel and the pull rod are coaxial, an elastic jacket is sleeved outside the mandrel, the outer wall of the upper end of the mandrel is a first conical surface with the diameter gradually increasing downwards, the inner wall of the upper end of the jacket is a second conical surface matched with the first conical surface, and the first conical surface is in close contact with the second conical surface; the side wall of the jacket is provided with a strip-shaped gap in a penetrating way, the length of the gap extends along the axial direction of the jacket, the upper end of the gap extends to the top wall of the jacket, and the gap is provided with a plurality of gaps which are uniformly distributed along the circumferential direction of the jacket; there is the clearance between cover diapire and the pull rod roof, and press from both sides the cover and pass through the bolt to link firmly with the pull rod, and both axes of bolt and pull rod are parallel, and the bolt has a plurality ofly and along pull rod circumference equipartition, and the pole portion of every bolt all overlaps outward has the body, and body both ends face sticiss respectively on pull rod roof and the cover diapire that presss from both sides, and body and pull rod contact and body and the contact of pressing from both sides the cover all adopt plane contact.
When the device is used, the lower end of the pull rod is connected with a driving source, so that the pull rod automatically moves up and down along the axis; the water meter cover is sleeved at the upper end of the jacket, the driving source drives the pull rod to move downwards to drive the jacket to move downwards, and the side wall of the jacket is expanded outwards to fix the water meter cover by utilizing the matching of the first conical surface and the second conical surface; after the water meter cover is machined, the driving source drives the pull rod to move upwards to drive the jacket to move upwards, the shape of the jacket is restored under the action of self elasticity, and the machined water meter cover can be easily taken down.
The pipe body is vertically arranged between the pull rod and the clamping sleeve, the pipe body is in contact with the pull rod, and the pipe body is in contact with the clamping sleeve through a plane, so that stable pushing and pulling acting forces are formed between the pull rod and the clamping sleeve, the stability of the clamping sleeve in moving is ensured, and the water meter cover is clamped and positioned more accurately, and the processing precision is ensured.
In the positioning fixture for processing the water meter cover, the base is further fixed with the positioning sleeve, the clamping sleeve is positioned in the positioning sleeve, the upper end of the clamping sleeve extends out of the positioning sleeve, and the top wall of the positioning sleeve is a plane. During the installation, water gauge cover diapire pastes on the position sleeve roof to support the water gauge cover, improve the stability of water gauge cover location, thereby improve the machining precision.
In foretell positioning fixture for processing of water meter cover, be fixed with the block on the position sleeve outer wall, have on the block and be the protruding portion of pressing of strip, the portion length of pressing extends along the position sleeve axial, and the portion upper end of pressing is just to pressing the cover upper end, and the water meter cover location back, the distance between portion of pressing and the water meter cover lateral wall is less than the backer length of water meter cover to make the water meter cover backer can press on the portion of pressing, further fix a position the water meter cover through increasing area of contact, thereby improve the machining precision.
In foretell positioning fixture for processing of water meter cover, be equipped with the recess that matches with the block on the position sleeve lateral wall, the block slides and sets up in the recess, and the block links firmly with the position sleeve through the screw. By adopting the design, the block body is convenient to mount.
In foretell positioning fixture is used in processing of water gauge cover, the breach comprises along pressing from both sides strip hole and the cell body that the cover axial distributes, and the strip hole is located between cell body and the pull rod, and the cell body is the slim strip, and cell body lower extreme intercommunication strip hole, and the cell body upper end extends to pressing from both sides the cover roof. By adopting the design, the jacket can be more easily deformed to clamp the water meter cover on the premise of ensuring the strength of the jacket, so that the strength of positioning the water meter cover is improved.
In foretell positioning fixture for processing of water meter cover, form one between body, the bolt that corresponds with the body, press from both sides the cover and the pull rod and be annular closed cavity, the closed cavity intussuseption is filled with compressed gas to form a structure similar to pneumatic spring between body and bolt, be used for buffering the shake that the water meter cover produced when pressing from both sides tightly, make the cover that presss from both sides more stable and the tight water meter cover of accurate clamp, further improve the machining precision.
In the positioning fixture for processing the water meter cover, the end face of the bolt rod is provided with a blind hole arranged along the axial direction of the bolt, the side wall of the bolt rod is provided with a gas injection hole which enables the blind hole to be communicated with the closed cavity, and the bolt rod is detachably and fixedly provided with a plugging piece for plugging a lower orifice of the blind hole. Compressed gas is injected into the closed cavity through the gas injection hole in the bolt rod part, so that the whole structure becomes compact while an additional gas injection structure is omitted, and the occupied space is reduced.
In the positioning fixture for processing the water meter cover, the plugging piece is a stud screwed in the blind hole, and the side wall of the stud forms sealing with the wall of the blind hole through an o-shaped ring.
As another scheme, in the positioning fixture for processing the water meter cover, the plugging piece is a rubber plug inserted into the blind hole, and the side wall of the rubber plug is in close contact with the wall of the blind hole to form sealing.
In foretell positioning fixture for processing of water meter cover, the ring channel has all been seted up on the both ends face of body, and the ring channel sets up with the body is coaxial, is equipped with to be annular rubber pad in the ring channel, and one of them terminal surface of rubber pad is pressed on the ring channel diapire, and another terminal surface of the rubber pad that is in the upside is pressed on pressing from both sides the cover diapire, and another terminal surface of the rubber pad that is in the downside is pressed on the pull rod roof. The rubber pad both is used for strengthening the sealed effect between body and the clamp cover and the pull rod, and the shake that produces when can further cushion the tight water meter lid of clamp again further improves the precision and the stability of water meter lid location.
Compared with the prior art, this positioning fixture for processing of water meter cover has following advantage:
1. the pipe body is vertically arranged between the pull rod and the clamping sleeve, the pipe body is in contact with the pull rod, and the pipe body is in contact with the clamping sleeve through a plane, so that stable pushing and pulling acting forces are formed between the pull rod and the clamping sleeve, the stability of the clamping sleeve in moving is ensured, and the water meter cover is clamped and positioned more accurately, and the processing precision is ensured.
2. During the installation, water gauge cover diapire pastes on the position sleeve roof to support the water gauge cover, improve the stability of water gauge cover location, thereby improve the machining precision.
3. A closed cavity is formed among the pipe body, the bolt corresponding to the pipe body, the clamping sleeve and the pull rod, and compressed gas is filled in the closed cavity to form a structure similar to a pneumatic spring between the pipe body and the bolt, so that the shaking generated when the water meter cover is clamped is buffered, the clamping sleeve clamps the water meter cover more stably and accurately, and the processing precision is further improved.
4. Compressed gas is injected into the closed cavity through the gas injection hole in the bolt rod part, so that the whole structure becomes compact while an additional gas injection structure is omitted, and the occupied space is reduced.
Drawings
Fig. 1 is a schematic structural view of a water meter cover.
Fig. 2 is a schematic perspective view of the positioning jig.
FIG. 3 is a schematic cross-sectional view of a positioning fixture according to an embodiment.
Fig. 4 is a schematic perspective view of the jacket.
FIG. 5 is a schematic view of the connection structure of the pipe, the bolt, the pull rod and the jacket according to the second embodiment.
In the figure, 1, a water meter cover; 1a, a ring body; 1b, backing a mountain; 2. a base; 3. a pull rod; 3a, a first convex ring; 4. a mandrel; 4a, annular flanging; 4b, a first conical surface; 5. a jacket; 5a, a second conical surface; 5b, a notch; 5b1, strip shaped holes; 5b2, a trough body; 6. a bolt; 6a, blind holes; 6b, gas injection holes; 7. a pipe body; 8. a positioning sleeve; 9. a block body; 9a, a pressing part; 10. a screw; 11. sealing the cavity; 12. a blocking member; 13. and (7) a rubber pad.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 2 and 3, the positioning fixture for processing the water meter cover comprises an annular base 2 and a pull rod 3 which is arranged in the base 2 in a vertical sliding manner, wherein the lower end of the pull rod 3 extends out of the base 2. In this embodiment, the upper end of the pull rod 3 is formed with a first protruding ring 3a, the shape and size of the first protruding ring 3a are matched with the inner wall of the upper end of the base 2, and the outer side wall of the first protruding ring 3a is attached to the inner side wall of the base 2, so that the pull rod 3 slides stably.
Wherein, a mandrel 4 is vertically fixed on the base 2, and the mandrel 4 and the pull rod 3 are coaxially arranged. The mandrel 4 is externally sleeved with an elastic jacket 5, and the jacket 5 can recover through self elasticity after elastic deformation. The jacket 5 may be made of spring steel or a plastic material, and in the present embodiment, the jacket 5 is made of spring steel. The side wall of the lower end of the mandrel 4 is provided with an annular flange 4a, the annular flange 4a is pressed on the top wall of the base 2, and the annular flange 4a is fixedly connected with the base 2 through a plurality of screws. As shown in fig. 3 and 4, the outer wall of the upper end of the mandrel 4 is a tapered surface one 4b with a diameter gradually increasing downwards, the inner wall of the upper end of the jacket 5 is a tapered surface two 5a matched with the tapered surface one 4b, and the tapered surface one 4b is in close contact with the tapered surface two 5 a. The side wall of the jacket 5 is provided with a strip-shaped gap 5b in a penetrating way, the length of the gap 5b extends along the axial direction of the jacket 5, and the upper end of the gap 5b extends to the top wall of the jacket 5. The notches 5b are plural and are uniformly distributed along the circumferential direction of the jacket 5. There is the clearance between 5 diapalls walls of clamp cover and the pull rod 3 roof, and clamp cover 5 and pull rod 3 link firmly through bolt 6, and both the axis of bolt 6 and pull rod 3 are parallel. The bolts 6 are distributed evenly along the circumference of the pull rod 3. The rod part of each bolt 6 is externally sleeved with a pipe body 7, two end faces of the pipe body 7 are respectively pressed on the top wall of the pull rod 3 and the bottom wall of the clamping sleeve 5, and the pipe body 7 is in contact with the pull rod 3 and the pipe body 7 is in contact with the clamping sleeve 5 by adopting plane contact.
Wherein the content of the first and second substances,
the bolt 6 is mounted as follows: and a second convex ring is formed on the outer side wall of the lower end of the jacket 5 and is coaxial with the jacket 5. The second convex ring is provided with through holes which penetrate along the axial direction, and the number of the through holes is the same as that of the bolts 6; the annular flanging 4a is provided with abdicating holes for the pipe bodies 7 to pass through, the abdicating holes and the pipe bodies 7 have the same number and are in one-to-one correspondence with each other in position; the top wall of the first convex ring 3a is provided with threaded holes arranged along the axial direction, and the number of the threaded holes is the same as that of the bolts 6; the bolt 6 passes through the corresponding through hole and the pipe body 7 in sequence and is in threaded connection with the corresponding threaded hole. Further, a positioning sleeve 8 is fixed on the base 2, the clamping sleeve 5 is positioned in the positioning sleeve 8, the upper end of the clamping sleeve 5 extends out of the positioning sleeve 8, and the top wall of the positioning sleeve 8 is a plane. During the installation, 1 diapire of water gauge cover is pasted on 8 roof of position sleeve to support water gauge cover 1, improve the stability of 1 location of water gauge cover, thereby improve the machining precision. In this embodiment, the lower end of the positioning sleeve 8 is fixedly connected with the annular flange 4a through a screw, so as to be connected with the base 2.
The specific structure of the notch 5b is as follows: as shown in fig. 4, the notch 5b is composed of a strip-shaped hole 5b1 and a groove body 5b2 which are distributed along the axial direction of the jacket 5, the strip-shaped hole 5b1 is positioned between the groove body 5b2 and the pull rod 3, the groove body 5b2 is in a thin strip shape, the lower end of the groove body 5b2 is communicated with the strip-shaped hole 5b1, and the upper end of the groove body 5b2 extends to the top wall of the jacket 5. By adopting the design, the jacket 5 can be more easily deformed to clamp the water meter cover 1 on the premise of ensuring the strength of the jacket 5, so that the strength of positioning the water meter cover 1 is improved.
As shown in fig. 2 and 3, a block 9 is fixed on the outer wall of the positioning sleeve 8, a strip-shaped protruding pressing portion 9a is arranged on the block 9, the length of the pressing portion 9a extends along the axial direction of the positioning sleeve 8, the upper end of the pressing portion 9a is opposite to the upper end of the jacket 5, and after the water meter cover 1 is positioned, the distance between the pressing portion 9a and the outer side wall of the water meter cover 1 is smaller than the length of the backer 1b of the water meter cover 1, so that the backer 1b of the water meter cover 1 can be pressed on the pressing portion 9a, the water meter cover 1 is further positioned by increasing the contact area, and the processing precision is improved. In this embodiment, the block 9 is mounted as follows: be equipped with the recess that matches with block 9 on the 8 lateral walls of position sleeve, block 9 slides and sets up in the recess, and block 9 links firmly with position sleeve 8 through screw 10.
When in use, the lower end of the pull rod 3 is connected with a driving source, so that the pull rod can automatically move up and down along the axis; the water meter cover 1 is sleeved at the upper end of the jacket 5, and at the moment, the bottom wall of the water meter cover 1 is attached to the top wall of the positioning sleeve 8; the driving source drives the pull rod 3 to move downwards to drive the jacket 5 to move downwards, and the side wall of the jacket 5 is expanded outwards to fix the water meter cover 1 by utilizing the matching of the conical surface I4 b and the conical surface II 5 a; after the water meter cover 1 is processed, the driving source drives the pull rod 3 to move upwards to drive the jacket 5 to move upwards, the shape of the jacket 5 is restored under the action of self elasticity, and the processed water meter cover 1 can be easily taken down.
Example two
The second embodiment is basically the same as the first embodiment in structure and principle, and the difference lies in: as shown in fig. 5, an annular closed cavity 11 is formed between the pipe body 7, the bolt 6 corresponding to the pipe body 7, the jacket 5, and the pull rod 3, and the closed cavity 11 is filled with compressed gas to form a structure similar to a pneumatic spring between the pipe body 7 and the bolt 6, so as to buffer the shaking generated when the water meter cover 1 is clamped, so that the jacket 5 clamps the water meter cover 1 more stably and accurately, thereby further improving the machining accuracy.
The compressed gas is injected into the closed cavity 11 in the following manner: the end face of the rod part of the bolt 6 is provided with a blind hole 6a arranged along the axial direction of the bolt 6, the side wall of the rod part of the bolt 6 is provided with a gas injection hole 6b which enables the blind hole 6a to be communicated with the closed cavity 11, and the rod part of the bolt 6 is detachably and fixedly provided with a plugging piece 12 used for plugging a lower orifice of the blind hole 6 a. Compressed gas is injected into the closed cavity 11 through the gas injection hole 6b arranged in the rod part of the bolt 6, so that the whole structure becomes compact while an additional gas injection structure is omitted, and the occupied space is reduced. In the present embodiment, the blocking member 12 is a stud screwed into the blind hole 6a, and a sidewall of the stud forms a seal with a wall of the blind hole 6a through an o-ring. Naturally, it is also possible to adopt a mode that the blocking piece 12 is a rubber plug inserted into the blind hole 6a, and the side wall of the rubber plug is in close contact with the wall of the blind hole 6a to form a seal.
Further, the two end faces of the pipe body 7 are respectively provided with an annular groove, and the annular grooves are coaxial with the pipe body 7. An annular rubber pad 13 is arranged in the annular groove, one end face of the rubber pad 13 is pressed on the bottom wall of the annular groove, the other end face of the rubber pad 13 on the upper side is pressed on the bottom wall of the clamping sleeve 5, and the other end face of the rubber pad 13 on the lower side is pressed on the top wall of the pull rod 3. The rubber pad 13 is used for enhancing the sealing effect between the pipe body 7 and the jacket 5 and the pull rod 3, and can further buffer the shake generated when the water meter cover 1 is clamped tightly, so that the positioning precision and stability of the water meter cover 1 are further improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. The positioning fixture for processing the water meter cover comprises an annular base (2) and a pull rod (3) which is arranged in the base (2) in a vertically sliding mode, and is characterized in that a mandrel (4) is vertically fixed on the base (2), the mandrel (4) and the pull rod (3) are coaxial, an elastic jacket (5) is sleeved outside the mandrel (4), the outer wall of the upper end of the mandrel (4) is a conical surface I (4b) with the diameter gradually increasing downwards, the inner wall of the upper end of the jacket (5) is a conical surface II (5a) matched with the conical surface I (4b), and the conical surface I (4b) is in close contact with the conical surface II (5 a); strip-shaped notches (5b) penetrate through the side wall of the jacket (5), the length of each notch (5b) extends along the axial direction of the jacket (5), the upper ends of the notches (5b) extend to the top wall of the jacket (5), and a plurality of notches (5b) are uniformly distributed along the circumferential direction of the jacket (5); a gap is reserved between the bottom wall of the clamping sleeve (5) and the top wall of the pull rod (3), the clamping sleeve (5) and the pull rod (3) are fixedly connected through a bolt (6), the axes of the bolt (6) and the pull rod (3) are parallel, the bolts (6) are multiple and uniformly distributed along the circumferential direction of the pull rod (3), a pipe body (7) is sleeved outside the rod part of each bolt (6), two end faces of the pipe body (7) are respectively tightly pressed on the top wall of the pull rod (3) and the bottom wall of the clamping sleeve (5), and the pipe body (7) is in contact with the pull rod (3) and the pipe body (7) is in contact with the clamping sleeve (5) in a plane contact manner; an annular closed cavity (11) is formed among the pipe body (7), the bolt (6) corresponding to the pipe body (7), the jacket (5) and the pull rod (3), and compressed gas is filled in the closed cavity (11); the end face of the rod part of the bolt (6) is provided with a blind hole (6a) which is axially arranged along the bolt (6), the side wall of the rod part of the bolt (6) is provided with a gas injection hole (6b) which enables the blind hole (6a) to be communicated with the closed cavity (11), and the rod part of the bolt (6) is detachably fixed with a plugging piece (12) which is used for plugging a lower orifice of the blind hole (6 a).
2. The positioning fixture for processing the water meter cover according to claim 1, wherein a positioning sleeve (8) is further fixed on the base (2), the clamping sleeve (5) is located in the positioning sleeve (8), the positioning sleeve (8) extends out of the upper end of the clamping sleeve (5), and the top wall of the positioning sleeve (8) is a plane.
3. The positioning fixture for processing the water meter cover according to claim 2, wherein a block (9) is fixed on the outer wall of the positioning sleeve (8), a pressing part (9a) protruding in a strip shape is arranged on the block (9), the length of the pressing part (9a) extends along the axial direction of the positioning sleeve (8), the upper end of the pressing part (9a) is opposite to the upper end of the clamping sleeve (5), and after the water meter cover (1) is positioned, the distance between the pressing part (9a) and the outer side wall of the water meter cover (1) is smaller than the length of the backer (1b) of the water meter cover (1).
4. The positioning fixture for processing the water meter cover according to claim 3, wherein a groove matched with the block (9) is formed in the outer side wall of the positioning sleeve (8), the block (9) is slidably arranged in the groove, and the block (9) is fixedly connected with the positioning sleeve (8) through a screw (10).
5. The positioning fixture for processing the water meter cover according to claim 1, 2, 3 or 4, wherein the notch (5b) is formed by a strip-shaped hole (5b1) and a groove body (5b2) which are axially distributed along the jacket (5), the strip-shaped hole (5b1) is positioned between the groove body (5b2) and the pull rod (3), the groove body (5b2) is in a thin strip shape, the lower end of the groove body (5b2) is communicated with the strip-shaped hole (5b1), and the upper end of the groove body (5b2) extends to the top wall of the jacket (5).
6. The positioning fixture for processing the water meter cover according to claim 1, wherein the blocking piece (12) is a stud screwed in the blind hole (6a), and the side wall of the stud forms a seal with the wall of the blind hole (6a) through an o-shaped ring.
7. The positioning fixture for processing the water meter cover according to claim 1, wherein the plugging member (12) is a rubber plug inserted into the blind hole (6a), and a side wall of the rubber plug is in close contact with a wall of the blind hole (6a) to form a seal.
8. The positioning fixture for processing the water meter cover according to claim 1, wherein annular grooves are formed in both end faces of the pipe body (7) and are coaxially arranged with the pipe body (7), an annular rubber pad (13) is arranged in each annular groove, one end face of each rubber pad (13) is pressed against the bottom wall of each annular groove, the other end face of each rubber pad (13) on the upper side is pressed against the bottom wall of the clamping sleeve (5), and the other end face of each rubber pad (13) on the lower side is pressed against the top wall of the pull rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960401.7A CN112091669B (en) | 2020-09-14 | 2020-09-14 | Positioning fixture for processing water meter cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960401.7A CN112091669B (en) | 2020-09-14 | 2020-09-14 | Positioning fixture for processing water meter cover |
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| Publication Number | Publication Date |
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| CN112091669A CN112091669A (en) | 2020-12-18 |
| CN112091669B true CN112091669B (en) | 2021-10-22 |
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| CN202010960401.7A Active CN112091669B (en) | 2020-09-14 | 2020-09-14 | Positioning fixture for processing water meter cover |
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| CN112091669A (en) | 2020-12-18 |
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