CN113352121A - Use method of floating ball drilling tool for vertical machining - Google Patents
Use method of floating ball drilling tool for vertical machining Download PDFInfo
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- CN113352121A CN113352121A CN202110723483.8A CN202110723483A CN113352121A CN 113352121 A CN113352121 A CN 113352121A CN 202110723483 A CN202110723483 A CN 202110723483A CN 113352121 A CN113352121 A CN 113352121A
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- pressing plate
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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
- B23Q3/066—Bench vices
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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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Abstract
The invention provides a using method of a floating ball drilling tool for vertical machining, which comprises a flat-nose pliers main body, a fixed jaw and a movable jaw, wherein the fixed jaw is fixedly arranged on the flat-nose pliers main body, the movable jaw is arranged on a rail surface and can move in a direction close to or far from the fixed jaw, a handle assembly is arranged at one end of the movable jaw far from the fixed jaw and drives the movable jaw to move through a transmission rod, a first pressing plate is arranged on one side of the fixed jaw, facing the movable jaw, a second pressing plate parallel to the first pressing plate is arranged on one side of the movable jaw, facing the fixed jaw, a positioning block parallel to the first pressing plate is arranged on the flat-nose pliers main body between the first pressing plate and the second pressing plate, and the width D2 of the positioning block is slightly smaller than the width D1 of a crescent groove. Through the mode, the problem that the drilling precision of the existing ball valve ball body is poor can be solved.
Description
Technical Field
The invention relates to the field of ball valve manufacturing, in particular to a use method of a floating ball drilling tool for vertical machining.
Background
In the production process of the ball valve, through holes are generally drilled on a floating ball body, some holes are drilled at the bottom of a valve rod groove, some holes are drilled at the ball bottom corresponding to the valve rod groove, and some holes are drilled at the side spherical surface of the ball. As shown in fig. 1 and fig. 2, the floating ball body 13 has side holes 1301 on both sides, a crescent groove 1303 on the bottom, and a small through hole 1302 drilled in the center of the top. During normal machining, workers typically align the centers by eye or manually scribe the centers and then drill holes with a rocker drill. And due to the adoption of the drilling of the machining center, proper tooling is also needed, and only one product can be drilled at one time in the conventional method. Moreover, the versatility is poor when different specifications are used or when the same specification is processed again. In a word, the traditional method is adopted to process the through hole, so that the problem of low processing precision exists, the labor intensity is high, the production efficiency is low, the universality is poor, and the production cost is high.
Disclosure of Invention
In order to solve the problems, the invention provides a using method of a floating ball drilling tool for vertical machining, which can solve the problem that the drilling precision of the existing ball valve ball body is poor.
The main content of the invention comprises: a using method of a floating ball drilling tool for vertical machining comprises a flat-nose pliers body, a fixed jaw, a movable jaw, a rail surface, a handle assembly and a transmission rod, wherein the fixed jaw is fixedly arranged on the flat-nose pliers body, the movable jaw is arranged on the rail surface and can move in a direction close to or far from the fixed jaw, the handle assembly is arranged at one end, away from the fixed jaw, of the movable jaw and drives the movable jaw to move through the transmission rod, a first pressing plate is arranged on one side, facing the movable jaw, of the fixed jaw, a second pressing plate parallel to the first pressing plate is arranged on one side, facing the fixed jaw, of the movable jaw, a positioning block parallel to the first pressing plate is arranged on the flat-nose pliers body between the first pressing plate and the second pressing plate, the width D2 of the positioning block is slightly smaller than the width D1 of a crescent groove, and the thickness H1 of the positioning block is larger than the distance H2 from the edge of the intersection of the crescent groove and a spherical surface to the highest point of the spherical surface, a plurality of calibration blocks with the same length are arranged between the positioning block and the first pressing plate in parallel, one end of each calibration block is perpendicular to the first pressing plate, and the other end of each calibration block is perpendicular to the positioning block.
The using method comprises the following steps:
firstly, contacting the bottom plane of a flat-nose pliers main body with a machine tool working table, and pressing the flat-nose pliers main body on the machine tool working table by utilizing a T-shaped block and a bolt in the machine tool working table through jaw ears on two sides of the flat-nose pliers main body;
secondly, respectively taking down the fixed jaw and the movable jaw, respectively drilling 2 threaded through holes at appropriate positions, and then reinstalling the flat tongs main body;
respectively processing two step holes at corresponding positions of the first pressing plate and the second pressing plate, respectively drilling 2 threaded blind holes at two side edges of the first pressing plate, and sticking a rubber pad on the second pressing plate;
fixing a first pressure plate and a second pressure plate on a fixed jaw and a movable jaw respectively by using 4 hexagon socket head cap screws B, and fixing two positioning plates on two sides of the first pressure plate by using 4 hexagon socket head cap screws A;
placing two correcting blocks on the plane of the flat tongs main body track according to the size of the sphere, contacting one end face of each correcting block with a first pressing plate, enabling the two correcting blocks to be perpendicular to the first pressing plate, then taking positioning blocks, uniformly placing the positioning blocks on the plane of the flat tongs main body track, pushing forwards along the plane, and vertically contacting the other end faces of the two correcting blocks with the same size;
taking a to-be-processed ball body (the end of the crescent groove faces downwards), ensuring that a side hole at one end of the ball body is attached to the surface of the first pressing plate, and the maximum outer diameter of the spherical surface is attached to the positioning plate, so that the ball body is put down, the two ends of the processed crescent groove of the ball body are in contact with the plane of the positioning block, and the ball body is automatically corrected under the action of self weight, and the highest point of the spherical surface on the ball body is concentric with the crescent groove (the positioning block cannot move under the self weight);
seventhly, two balls are all placed in proper order, and one is leaned on left and put, and one is leaned on the right and put, then through handle assembly, will move about vice jaw and forward push to drive the second clamp plate and be close to spheroidal other end side opening, finally press rubber to the side opening, finally fix two spheroids well.
Preferably, a gap is formed between the first pressing plate, the second pressing plate and the track surface.
Preferably, a pair of positioning plates is symmetrically arranged on two sides of the first pressure plate.
Preferably, the width of the second pressure plate is smaller than the distance between the two positioning plates.
Preferably, a layer of rubber pad is arranged on one side, close to the first pressing plate, of the second pressing plate, the size of the rubber pad is smaller than that of the second pressing plate, and each edge of the rubber pad does not exceed the edge of the second pressing plate.
Preferably, the thickness of the calibration block is smaller than that of the positioning block.
Preferably, counter bores are formed in the side walls of the first pressing plate and the second pressing plate, and bolts are arranged in the counter bores, so that the first pressing plate is fixed on the fixed jaw, and the second pressing plate is fixed on the movable jaw.
Preferably, the transmission rod adopts a screw rod, and a threaded hole matched with the screw rod is arranged in the movable jaw.
The invention has the beneficial effects that:
1. by adopting the structure, the mounting precision of the ball body is improved, so that the small through hole has better concentricity with the crescent groove after being processed;
2. the processing efficiency is improved, and the productivity and the output value are further improved;
3. the universal ball valve is good in universality and suitable for machining small through holes of various ball valve spheres.
Drawings
FIG. 1 is a schematic perspective view of a ball valve body in the prior art;
FIG. 2 is a schematic perspective view of the sphere at another angle;
FIG. 3 is a schematic perspective view of a floating ball drilling tool for vertical processing according to a preferred embodiment of the present invention;
FIG. 4 is a schematic perspective view of another angle of the floating ball drilling tool for vertical machining;
FIG. 5 is a top view of the ball after being loaded into the tooling;
FIG. 6 is a schematic perspective view of a sphere after being loaded into the tooling;
FIG. 7 is a schematic view of the assembly of the positioning block and the crescent groove;
reference numerals: 1-flat-nose pliers body, 2-fixed pliers mouth, 3-movable pliers mouth, 4-first pressing plate, 5-second pressing plate, 6-positioning plate, 7-bolt A, 8-bolt B, 9-rubber pad, 10-calibration block, 11-positioning block, 12-handle component, 13-sphere, 14-transmission rod, 101-pliers mouth ear, 102-track surface, 1301-side hole, 1302-small through hole and 1303-crescent groove.
Detailed Description
The technical scheme protected by the invention is specifically explained in the following by combining the attached drawings.
Referring to fig. 3 and 4, a floating ball drilling tool for vertical processing comprises a flat tongs main body 1, a fixed tongs 2, a movable tongs 3, a track surface 102, a handle assembly 12 and a transmission rod 14, wherein the fixed tongs 2 is fixedly arranged on the flat tongs main body 1, the movable tongs 3 is arranged on the track surface 102 and can move in a direction close to or far from the fixed tongs 2, the handle assembly 12 is arranged at one end of the movable tongs 3 far from the fixed tongs 2 and drives the movable tongs 3 to move through the transmission rod 14, a first pressing plate 4 is arranged at one side of the fixed tongs 2 facing the movable tongs 3, a second pressing plate 5 parallel to the first pressing plate 4 is arranged at one side of the movable tongs 3 facing the fixed tongs 2, a positioning block 11 parallel to the first pressing plate is arranged on the flat tongs main body 1 between the first pressing plate 4 and the second pressing plate 5, the width D2 of locating piece 11 slightly is less than the width D1 of crescent 1303, the thickness H1 of locating piece 11 is greater than crescent 1303 and the crossing sideline of sphere to the peak distance H2 (as shown in figure 7) of spheroid sphere, the height guarantees when the spheroid that matches is placed that the peak of spheroid can not contact flat-nose pliers main part 1 (because locating piece 11 is with waiting to process the contact of the both ends notch of crescent of ball), parallel arrangement has two piece of school 10 of the same length between locating piece 11 and the first clamp plate 4, piece of school 10 adopts the cuboid, and evenly distributed between first clamp plate 4 and locating piece 11, one end of piece of school 10 is perpendicular with first clamp plate 4, the other end is perpendicular with locating piece 11.
Further, in order to avoid interference between the first pressing plate 4 and the second pressing plate 5 and the track surface 102, a gap is formed between the first pressing plate 4 and the track surface 102 and between the second pressing plate 5 and the track surface 102.
In order to improve the application range of the present invention and facilitate positioning, a pair of positioning plates 6 are symmetrically disposed on both sides of the first pressing plate 4, and the positioning plates 6 are fixed at the side wall of the first pressing plate 4 by bolts a 7.
When processing the spheroid of minor diameter, second clamp plate 5 needs to be closer to first clamp plate 4, in order to prevent to take place to interfere between second clamp plate 5 and the locating plate 6, the width of first clamp plate 4 is greater than the width of fixed keeping silent 2, and the width of second clamp plate 5 is greater than the width of activity keeping silent 3, and the width of second clamp plate 5 is less than the interval between two locating plates 6. The first pressing plate 4 and the second pressing plate 5 are the same in height, and the length of the second pressing plate 5 is smaller than that of the first pressing plate 4, so that when a ball with a smaller specification is pressed, the movable jaw 3 can push the second pressing plate 5 to enter the area of the two positioning plates 6, and the ball is tightly pressed without interference.
Because the ball body has a large size, the heights of the first pressure plate 4 and the second pressure plate 5 are determined by the height of the small through hole 1302, as long as the height is larger than the height of the hole when the hole of the maximum specification ball is placed; the length and height of the positioning plate 6 are only required to exceed the maximum outer diameter of the spherical surface of the maximum-sized ball, and the lower edge of the positioning plate 6 does not need to reach the bottom and is not in contact with the track surface (in principle, the length and height of the positioning plate 6 are lower than the maximum outer diameter of the spherical surface of the minimum-sized ball), so that the height direction of the positioning plate 6 is only the partial length of the first presser plate 4.
One side of the second pressing plate 5, which is close to the first pressing plate 4, is provided with a layer of rubber pad 9, the size of the rubber pad 9 is smaller than that of the second pressing plate 5, and each edge of the rubber pad 9 does not exceed the edge of the second pressing plate 5. Because the chamfer of every spheroid will have the tolerance more or less, because rubber pad 9 can compress, can have certain compensation function, just so can guarantee that second clamp plate 5 can both compress tightly two spheroids 13.
When the ball 13 is installed and positioned, the positioning block 11 needs to be clamped into the tooth pressing groove 1303, so that the thickness H1 of the positioning block 11 is greater than the distance H2 from the side line of the intersection of the crescent groove 1303 and the spherical surface to the highest point of the spherical surface of the ball. In order to avoid interference between the calibration block 10 and the sphere 13, the thickness of the calibration block 10 needs to be smaller than that of the positioning block 11.
The normal positioning block 11 only needs one specification, and can be processed by one positioning block for larger width and height deviation, and in any case, one positioning block 11 can meet the requirements of various sizes.
Counter bores are formed in the side walls of the first pressing plate 4 and the second pressing plate 5, and bolts are arranged in the counter bores, so that the first pressing plate 4 is fixed on the fixed jaw 2, and the second pressing plate 5 is fixed on the movable jaw 2. The design of the counter bore is adopted, so that the outer ends of the bolts can be lower than the side faces of the first pressure plate 4 and the second pressure plate 5.
The transmission rod 14 in the invention adopts a screw rod, and when the movable jaw 3 is moved, only the handle assembly 12 needs to be rotated. Of course, other transmission members such as a cylinder or a push rod may be used in addition to the screw rod.
Referring to fig. 5 and 6, a method for using a floating ball drilling tool for vertical machining comprises the following steps:
firstly, contacting the bottom plane of a flat-nose pliers main body 1 with a machine tool working table, and pressing the flat-nose pliers main body 1 on the machine tool working table by utilizing a T-shaped block and a bolt in the machine tool working table through jaw ears at two sides of the flat-nose pliers main body 1;
secondly, the fixed jaw 2 and the movable jaw 3 are respectively taken down, 2 threaded through holes are respectively drilled at proper positions, and then the flat tongs body 1 is reinstalled;
thirdly, two step holes are respectively processed at the corresponding positions of the first pressing plate 4 and the second pressing plate 5, 2 threaded blind holes are respectively drilled at two side edges of the first pressing plate 4, and a rubber pad 9 is adhered to the second pressing plate 5;
fourthly, the first pressure plate 4 and the second pressure plate 5 are respectively fixed on the fixed jaw 2 and the movable jaw 3 by 4 hexagon socket head cap screws B8, and the two positioning plates 6 are fixed on two sides of the first pressure plate 4 by 4 hexagon socket head cap screws A7;
placing two correcting blocks 10 on the track plane of the flat-nose pliers main body 1 according to the size of the ball 13, contacting one end face of each correcting block 10 with the first pressing plate 4, enabling the two correcting blocks 10 to be perpendicular to the first pressing plate 4, then taking out the positioning blocks 11, uniformly placing the positioning blocks on the track plane of the flat-nose pliers main body 1, pushing forwards along the plane, and vertically contacting the other end faces of the two correcting blocks 10 with the same size;
taking a to-be-processed ball body 13 (with the end of the crescent groove facing downwards), ensuring that a side hole at one end of the ball body is attached to the surface of the first pressing plate 4, and the maximum outer diameter of the spherical surface is attached to the positioning plate, so that the ball body 13 is put down, the two ends of the processed crescent groove of the ball body 13 are in contact with the plane of the positioning block 11 at the moment, and automatically correcting under the action of self weight, and the highest point of the spherical surface on the ball body 13 is concentric with the crescent groove (the positioning block 11 cannot move under the action of self weight);
seventhly, two balls are all placed in proper order, and one is leaned on left and is put, and one is leaned on the right and put, then through handle component 12, will move about 3 forward pushes away of keeping silent to drive second clamp plate 5 and be close to spheroidal other end side opening, finally press rubber 9 to the side opening, finally fix two spheroids.
And after the placement of the ball is finished, drilling is carried out. During the first processing, workers need to respectively correct the centers of the two spheres and then program the centers. After the machining is finished, the handle assembly 12 is rotated in the opposite direction, the machined ball body 13 is taken down, when the ball body is placed at the back, the ball body is placed according to the same operation method (the side hole at one end of the ball body is ensured to be attached to the side surface of the first pressing plate 4, the position of the maximum outer diameter of the spherical surface is attached to the positioning plate 6, the positioning is successful in this way), and after the ball body is pressed, the machining is directly started, and the ball body is machined at the same position every time. When a sphere with a large deviation needs to be machined, the calibration block 10 and the positioning block 11 may need to be replaced. If the self-contained jaw of the flat-nose pliers is needed, the first pressing plate 4 and the second pressing plate 5 are only needed to be dismounted, and the original structure of the flat-nose pliers is not affected. Local modification of the tool can meet the requirement of machining through holes on the side edges of the ball body.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The use method of the floating ball drilling tool for vertical machining comprises the following steps: the improved flat-nose pliers comprise a flat-nose pliers body, a fixed jaw, a movable jaw, a rail surface, a handle assembly and a transmission rod, wherein the fixed jaw is fixedly arranged on the flat-nose pliers body, the movable jaw is arranged on the rail surface and can move along the direction close to or far away from the fixed jaw, the handle assembly is arranged at one end of the movable jaw far away from the fixed jaw and drives the movable jaw to move through the transmission rod, a first pressing plate is arranged on one side of the fixed jaw facing the movable jaw, a second pressing plate parallel to the first pressing plate is arranged on one side of the movable jaw facing the fixed jaw, a positioning block parallel to the first pressing plate is arranged on the flat-nose pliers body between the first pressing plate and the second pressing plate, the width D2 of the positioning block is slightly smaller than the width D1 of a crescent groove, the thickness H1 of the positioning block is larger than the distance H2 from the edge of the intersection of the crescent groove and the spherical surface to the highest point of the spherical surface of the sphere, the utility model discloses a positioning device, including locating piece, first clamp plate, locating piece, the locating piece is provided with the same piece of school of many lengths between locating piece and the first clamp plate in parallel, the one end of school piece is perpendicular with first clamp plate, and the other end is perpendicular with the locating piece, its characterized in that includes following step:
firstly, contacting the bottom plane of a flat-nose pliers main body with a machine tool working table, and pressing the flat-nose pliers main body on the machine tool working table by utilizing a T-shaped block and a bolt in the machine tool working table through jaw ears on two sides of the flat-nose pliers main body;
secondly, respectively taking down the fixed jaw and the movable jaw, respectively drilling 2 threaded through holes at appropriate positions, and then reinstalling the flat tongs main body;
respectively processing two step holes at corresponding positions of the first pressing plate and the second pressing plate, respectively drilling 2 threaded blind holes at two side edges of the first pressing plate, and sticking a rubber pad on the second pressing plate;
fixing a first pressure plate and a second pressure plate on a fixed jaw and a movable jaw respectively by using 4 hexagon socket head cap screws B, and fixing two positioning plates on two sides of the first pressure plate by using 4 hexagon socket head cap screws A;
placing two correcting blocks on the plane of the flat tongs main body track according to the size of the sphere, contacting one end face of each correcting block with a first pressing plate, enabling the two correcting blocks to be perpendicular to the first pressing plate, then taking positioning blocks, uniformly placing the positioning blocks on the plane of the flat tongs main body track, pushing forwards along the plane, and vertically contacting the other end faces of the two correcting blocks with the same size;
taking a ball to be processed, enabling the end of the crescent groove to face downwards, ensuring that a side hole at one end of the ball is attached to the surface of the first pressing plate, and ensuring that the maximum outer diameter of the spherical surface is attached to the positioning plate, putting down the ball, enabling the two ends of the processed crescent groove of the ball to be in contact with the plane of the positioning block, automatically correcting under the action of dead weight, and enabling the highest point of the spherical surface on the ball to be concentric with the crescent groove;
seventhly, two balls are all placed in proper order, and one is leaned on left and put, and one is leaned on the right and put, then through handle assembly, will move about vice jaw and forward push to drive the second clamp plate and be close to spheroidal other end side opening, finally press rubber to the side opening, finally fix two spheroids well.
2. The use method of the floating ball drilling tool for vertical machining is characterized in that gaps are reserved among the first pressing plate, the second pressing plate and the track surface.
3. The use method of the floating ball drilling tool for vertical machining is characterized in that a pair of positioning plates is symmetrically arranged on two sides of the first pressing plate.
4. The use method of the floating ball drilling tool for vertical machining is characterized in that the width of the second pressing plate is smaller than the distance between the two positioning plates.
5. The use method of the floating ball drilling tool for vertical machining is characterized in that a layer of rubber pad is arranged on one side, close to a first pressing plate, of a second pressing plate, the size of the rubber pad is smaller than that of the second pressing plate, and each edge of the rubber pad does not exceed the edge of the second pressing plate.
6. The use method of the floating ball drilling tool for vertical machining is characterized in that the thickness of the correcting block is smaller than that of the positioning block.
7. The use method of the floating ball drilling tool for vertical machining is characterized in that counter bores are formed in the side walls of the first pressing plate and the second pressing plate, bolts are arranged in the counter bores, the first pressing plate is fixed to a fixed jaw, and the second pressing plate is fixed to a movable jaw.
8. The use method of the floating ball drilling tool for vertical machining is characterized in that a screw rod is adopted as the transmission rod, and a threaded hole matched with the screw rod is formed in the movable jaw.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110723483.8A CN113352121B (en) | 2021-06-29 | 2021-06-29 | Use method of floating ball drilling tool for vertical machining |
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|---|---|---|---|
| CN202110723483.8A CN113352121B (en) | 2021-06-29 | 2021-06-29 | Use method of floating ball drilling tool for vertical machining |
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| CN113352121B CN113352121B (en) | 2022-04-19 |
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| CN211991898U (en) * | 2020-03-24 | 2020-11-24 | 苏州工业园区博斯塔机械有限公司 | Be used for spheroidal milling flutes frock of fixed ball valve |
| CN111571140A (en) * | 2020-05-26 | 2020-08-25 | 台州乐多阀门有限公司 | Ball valve core and machining method thereof |
| CN111992739A (en) * | 2020-08-27 | 2020-11-27 | 江特科技股份有限公司 | Plastic spherical surface polishing-free turning process |
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| CN113352121B (en) | 2022-04-19 |
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