CN216913583U - Compact type porous positioning tool - Google Patents
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- CN216913583U CN216913583U CN202220800029.8U CN202220800029U CN216913583U CN 216913583 U CN216913583 U CN 216913583U CN 202220800029 U CN202220800029 U CN 202220800029U CN 216913583 U CN216913583 U CN 216913583U
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Abstract
The utility model relates to the field of machinery, and discloses a compact multi-hole positioning tool, which comprises a plurality of positioning pin shafts, wherein the outer diameters of the positioning pin shafts are matched with an inner hole of a conical cylinder structure of an upper-layer workpiece; the shaft hole, the shaft hole is followed the axis direction of positioning pin axle runs through the positioning pin axle sets up, just the internal diameter in shaft hole matches with the diameter that sets up at the positive pole post of lower floor's work piece, the height of positive pole post is not less than all work pieces pile up the height. According to the assembly precision of the large structural member, the utility model designs a proper fit clearance for the positioning tool, and can meet the micron-order or millimeter-order coaxiality assembly precision requirement of the large structural member.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a compact type porous positioning tool.
Background
A large magnetic insulation transmission line consists of 5 workpieces, each workpiece is of a stainless steel thin-wall cone structure, inner holes are formed in the stainless steel thin-wall cones which penetrate through the workpieces from top to bottom, the diameter of the bottom of each cone is about 3 meters, the height (0.5-1.8 meters) is different, the weight of each workpiece is about 1 ton, an anode column which is connected through threads is arranged on the workpiece at the lowest layer in the vertical direction, the anode column sequentially penetrates through the inner hole of a second layer of workpieces, the inner hole of a third layer of workpieces, the inner hole of a fourth layer of workpieces and the inner hole of a fifth layer of workpieces from bottom to top, and finally the anode column and the fifth layer of workpieces are fixed through threaded connection of a nut and the anode column at the top of the fifth layer of workpieces, in the workpieces forming the magnetic insulation transmission line, the fit clearance between the inner holes of the first layer, the third layer and the fifth layer of workpieces and the anode post is smaller, and the fit clearance between the inner holes of the second layer and the fourth layer of workpieces and the anode post is larger. Because the working field intensity of the magnetic insulation transmission line is higher, the working stability of the 'column-hole' structure (namely the combined structure formed by the anode column and the second layer and the fourth layer respectively) is closely related to the coaxiality of 5 workpieces, and the electric field distortion and even the great loss of transmission current can be caused by overlarge deviation of the coaxiality. Therefore, the coaxiality of the 5 workpieces has high requirement on the installation precision, and thus the coaxiality precision of the anode column and the workpieces on the second layer and the fourth layer is required to reach a certain standard. The magnetic insulation transmission line has larger weight, and can finish the assembly of all workpieces in the vertical direction only by means of a travelling crane, and the coaxiality of the column-hole structure is required to be less than 0.5 mm. Because the size of the workpiece is large, personnel cannot reach the central area to confirm the installation accuracy in time, after the first workpiece is installed in place, the second workpiece is inserted into the first workpiece in the vertical direction by means of the guide of a travelling crane, the trial assembly of the second workpiece is completed on the premise of not taking a lifting appliance, then a single sleeve is adopted to be inserted into a plurality of column-hole structures between the upper workpiece and the lower workpiece one by one, repeated comparison, adjustment and comparison are carried out, the coaxiality and the overall assembly accuracy of the upper workpiece and the lower workpiece are determined, the positioning sleeve can be used twice in the whole assembly process, the method is long in time consumption, the labor intensity is high, and the positioning accuracy is not ideal enough.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a compact porous positioning tool which can finish high-precision assembly between an upper workpiece and a lower workpiece under the condition of one-time trial assembly.
The utility model is realized by the following technical scheme:
a compact porous positioning tool comprises:
the outer diameter of each positioning pin shaft is matched with the inner hole of the upper-layer workpiece, a plurality of positioning pin shafts are arranged, the positioning pin shafts are connected to the positioning mounting ring together, and the axial length of each positioning pin shaft is not less than the stacking height of the upper-layer workpiece and the lower-layer workpiece;
the shaft hole is followed the axis direction of positioning pin axle runs through the positioning pin axle sets up, just the internal diameter in shaft hole matches with the diameter that sets up the positive pole post at the lower floor work piece.
In the technical scheme, the positioning hole tool is an integrated structure consisting of a plurality of positioning pin shafts and positioning mounting rings, the positioning pin shafts are provided with shaft holes, the positioning pin shafts are provided with hole-column structures, after a lower-layer workpiece is mounted in place, an upper-layer workpiece is stacked and mounted on a lower-layer workpiece (not temporarily placed in place), the positioning hole tool is integrally inserted into an inner hole of the upper-layer workpiece, the shaft holes of the positioning pin shafts are inserted into an anode column arranged on the lowest-layer workpiece, and the anode column penetrates through the whole stacked workpiece, so that the integral assembly precision formed by the plurality of column-hole structures can be achieved through one-time positioning and trial assembly, the working efficiency and the mounting precision are greatly improved, namely, the positioning pin shafts in the positioning hole tool penetrate through the inner hole of the upper-layer workpiece and are inserted into the anode column of the lower-layer workpiece. According to the utility model, a plurality of positioning tool hole sites can be designed according to the structure and the weight of a large-sized workpiece, the structural strength and the positioning precision of the workpiece can be ensured, and the positioning mounting ring is arranged in a ring shape, so that the positioning tool can be conveniently taken down after subsequent positioning.
And as optimization, a threaded hole is formed in the positioning mounting ring in a vertically penetrating mode, an external thread matched with the internal thread of the threaded hole is arranged above the periphery of the positioning pin shaft, and the positioning pin shaft is in threaded connection with the threaded hole.
Like this, at the trial-assembly in-process, if assembly problem appears in certain round pin axle, conveniently dismantle and detect alone and modify, simultaneously, if still need improve the assembly precision, then can carry out the promotion of precision alone to a plurality of positioning pin axles to this satisfies higher required precision, practices thrift the cost more
Preferably, the handle is arranged on the positioning and mounting ring.
Like this, design the handle, the locating hole frock of being convenient for take.
Preferably, the number of the handles is two, and the two handles are symmetrically arranged at two ends of the positioning mounting ring in the radial direction parallel to the positioning pin shaft.
Like this, be convenient for hold the handle, take the locating hole frock.
As optimization, the handles are U-shaped, and the openings of the two U-shaped handles are oppositely arranged.
Preferably, one end of the positioning pin shaft, which is far away from the positioning mounting ring, is in a shape of a circular truncated cone with a large top and a small bottom.
Therefore, the lower end of the positioning pin shaft is designed into a round table shape serving as a guide structure, so that the insertion and taking-out processes of the positioning hole tool are easy and convenient.
Preferably, the lower end of the shaft hole is provided with an outward inclined chamfer.
Therefore, the guide function can be achieved, and the insertion of each anode post during assembly is convenient.
As optimization, the positioning pin shaft comprises a vertical part and a circular table part, and the position of the intersection of the vertical part and the circular table part is in a smooth circular arc shape.
Therefore, the vertical part and the circular table part of the positioning pin shaft can be prevented from scratching the hole wall of the inner hole by the sharp corner at the intersection of the vertical part and the circular table part of the positioning pin shaft.
Preferably, 12 threaded holes are formed in the base.
Preferably, the angular distribution between the threaded holes is 30 ° ± 5'.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the utility model designs a proper fit clearance for the positioning tool according to the assembly precision of a large-scale structural member, and can meet the micron-scale or millimeter-scale concentricity assembly precision requirement of the large-scale structural member, the positioning hole tool is an integrated structure of 12 positioning pin shafts, a guide structure and a special handle are designed on the hole-column (provided with a shaft hole in the positioning pin shaft) part of the positioning pin shaft, so that the inserting and taking-out processes are easy and convenient, after a lower-layer workpiece is installed in place, before an upper-layer workpiece is installed in place, the positioning hole tool is integrally inserted into 12 column-hole structures which are already installed in place, the overall assembly precision formed by the 12 column-hole structures can be achieved through one-time positioning and trial assembly, the working efficiency and the installation precision are greatly improved, and the hole-column structure of the positioning hole tool and the previous column-hole structure can form a cooperative and complementary fit clearance, the positioning accuracy after the comprehensive action is far higher than that after the repeated comparison and adjustment of a single sleeve, the concentricity of a column-hole structure can be ensured to be less than 0.5mm by the currently adopted positioning tool, a proper fit clearance is designed for the positioning tool according to the assembly accuracy of a large structural member, and the micron-scale concentricity assembly accuracy requirement of the large structural member can be met.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort. In the drawings:
FIG. 1 is a schematic structural view of a compact multi-hole positioning tool according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is an assembly view of a compact multi-hole positioning tool and two workpieces therein according to the present invention;
FIG. 4 is an assembly view of a compact multi-hole positioning tool of the present invention with two other workpieces;
fig. 5 is a schematic partial structure diagram of a magnetic isolation transmission line stacked by 5 workpieces according to the background of the utility model.
Reference numbers and corresponding zero workpiece names in the drawings:
1-a positioning pin shaft, 1 a-a vertical part, 1 b-a circular table part, 2-an upper workpiece, 2 a-a lower workpiece, 2 b-an anode column, 2 c-a sleeve, 3-a positioning mounting ring, 4-an axle hole and 5-a handle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1-5, a compact multi-hole positioning tool comprises:
the outer diameter of each positioning pin shaft 1 is matched with an inner hole of a conical cylinder structure of an upper-layer workpiece 2, a plurality of positioning pin shafts 1 are arranged, the positioning pin shafts 1 are connected to a positioning mounting ring 3 together, and the axial length of each positioning pin shaft 1 is not less than the stacking height of the upper-layer workpiece 2 and the lower-layer workpiece 2a in a stacking mode;
the shaft hole 4, the shaft hole 4 is followed the axis direction of positioning pin axle 1 runs through positioning pin axle 1 sets up, just the internal diameter in shaft hole 4 matches with the diameter that sets up the anode column 2b at the lower floor work piece.
The anode column can be screwed into an inner cylinder of the workpiece at the lowest layer through threads, and finally, a nut is installed on an external thread arranged at the top of the anode column to fix a plurality of stacked workpieces.
In this technical solution, as shown in fig. 3 to 5, the upper layer workpieces in this embodiment are a second layer workpiece (the second layer workpiece is an upper layer workpiece with respect to the first layer workpiece) and a fourth layer workpiece (the fourth layer workpiece is an upper layer workpiece with respect to the third layer workpiece). The positioning hole tool is an integrated structure consisting of a plurality of positioning pin shafts and positioning mounting rings, the positioning pin shafts are provided with shaft holes, the positioning pin shafts are provided with hole-column structures, after a lower-layer workpiece is mounted in place, an upper-layer workpiece is stacked and mounted on a lower-layer workpiece (not temporarily placed in place), the positioning hole tool is integrally inserted into an inner cylinder of the upper-layer workpiece, the shaft holes of the positioning pin shafts are inserted into an anode column arranged on the lowest-layer workpiece, and the anode column penetrates through the whole stacked workpiece, so that the integral assembly precision formed by the plurality of column-hole structures can be achieved through one-time positioning and trial assembly, the working efficiency and the mounting precision are greatly improved, namely, the positioning pin shafts in the positioning hole tool penetrate through inner holes of conical cylinders of the upper-layer workpiece and are inserted into anode columns of the lower-layer workpiece. According to the utility model, a plurality of positioning tool hole sites can be designed according to the structure and the weight of a large-sized workpiece, the structural strength and the positioning precision of the workpiece can be ensured, and the positioning mounting ring is arranged in a ring shape, so that the positioning tool can be conveniently taken down after subsequent positioning. And 2c in the figure is a sleeve, and after the positioning hole tool is positioned and taken out, the sleeve is sleeved on the anode post, so that the electric potentials of the first part, the third part and the fifth part are the same.
Specifically, after the first layer (the bottommost layer and the bottommost layer) of workpieces and the second layer of workpieces are positioned, the porous positioning tool is drawn out, then the sleeve penetrates through the anode column to be installed on the first layer of workpieces, and the upper surface of the inner hole of the first layer of workpieces is provided with a groove matched with the sleeve; similarly, grooves matched with the sleeves are formed in the lower surface and the upper surface of an inner hole of the third-layer workpiece, and grooves matched with the sleeves are also formed in the lower surface of an inner hole of the fifth-layer workpiece, so that after the inner hole of the third-layer workpiece penetrates through the anode post, the error between the axis of the inner hole of the third-layer workpiece and the axis of the anode post is small due to small clearance fit between the inner hole of the third-layer workpiece and the anode post, then the inner hole of the fourth-layer workpiece penetrates through the anode post and is installed above the third-layer workpiece, positioning is carried out through the porous positioning tool, after positioning is finished, the porous positioning tool is drawn out, another sleeve penetrates through the anode post and is installed on the third-layer workpiece, and the lower portion of the sleeve is inserted into the grooves in the upper surface of the third-layer workpiece, so that the third-layer workpiece and the fifth-layer workpiece can be positioned.
In this embodiment, run through from top to bottom location collar 3 is equipped with the screw hole, the periphery top of positioning pin 1 be provided with the external screw thread that the internal thread of screw hole matches, positioning pin 1 with screw hole threaded connection.
Like this, at the trial-assembly in-process, if assembly problem appears in certain round pin axle, conveniently dismantle and detect alone and modify, simultaneously, if still need improve the assembly precision, then can carry out the promotion of precision to a plurality of positioning pin axles alone to this satisfies higher required precision, practices thrift the cost more.
In this embodiment, the device further comprises a handle 5, and the handle 5 is mounted on the positioning and mounting ring 3.
Like this, the design handle, the locating hole frock of being convenient for take.
In this embodiment, there are two handles 5, and the two handles 5 are symmetrically disposed at two ends of the positioning mounting ring 3 in a radial direction parallel to the positioning pin 1.
Like this, be convenient for hold the handle, take the locating hole frock.
In this embodiment, the handle 5 is U-shaped, and the openings of the two U-shaped handles 5 are disposed opposite to each other.
In this embodiment, one end of the positioning pin shaft 1, which is far away from the positioning mounting ring, is in a circular truncated cone shape with a large top and a small bottom.
Therefore, the lower end of the positioning pin shaft is designed into a round table shape serving as a guide structure, so that the insertion and taking-out processes of the positioning hole tool are easy and convenient.
In this embodiment, the lower end of the shaft hole 4 is provided with an outward-inclined chamfer.
Therefore, the guide function can be achieved, and the insertion of each anode post during assembly is convenient.
In this embodiment, the positioning pin 1 includes a vertical portion 1a and a circular truncated cone portion 1b, and a position where the vertical portion 1a contacts the circular truncated cone portion 1b is in a smooth arc shape.
Therefore, the hole wall of the inner hole can be prevented from being scratched by sharp edges and corners at the intersection of the vertical part and the circular table part of the positioning pin shaft.
In this embodiment, there are 12 threaded holes.
In this embodiment, the angular distribution between the threaded holes is 30 ° ± 5'.
Of course, here can set for the error size in the clearance between the diameter of locating pin axle and the inner tube diameter of the awl section of thick bamboo structure of upper work piece, and the clearance between the internal diameter of shaft hole and the diameter of the positive pole post of lower floor's work piece according to the precision of concentricity, simultaneously, it needs to explain here that, the diameter of locating pin axle is less than the inner tube diameter of the awl section of thick bamboo structure of upper work piece, the internal diameter of shaft hole is greater than the diameter of the positive pole post of lower floor's work piece, simultaneously, the length of locating pin axle is greater than the height after upper work piece and lower floor's work piece pile, just so can make porous location frock can pass upper work piece and peg graft in lower floor's work piece.
The utility model relates to a porous positioning tool with a compact structure, which can be used for high-precision assembly scenes of large-size structural members with high weight and high manual assistance difficulty. The large-size stainless steel workpiece is in a cone-shaped and multi-layer stacked structure, the diameter of each workpiece is about 3 meters, the weight of each workpiece is about 1 ton, and all the workpieces are assembled layer by layer in the vertical direction through travelling crane matching. Before the multi-hole positioning tool is designed, after trial assembly of an upper workpiece and a lower workpiece is completed, the coaxiality uniformity and the overall assembly accuracy of 12 column-hole structures are determined by adopting a method of inserting a single sleeve into the column-hole structures one by one for repeated comparison and readjustment. Compared with the prior art, the positioning hole tool is an integrated structure with 12 positioning pin shafts, and the 'guide' structure (in a round table shape with a large upper part and a small lower part) and the special handle are designed on the 'hole-column' part of the positioning pin shaft, so that the inserting and taking-out processes are easy and efficient, the whole assembly precision can be achieved through one-time positioning and trial assembly, and the working efficiency and the installation precision are greatly improved. Before the upper layer workpiece is installed in place, the positioning hole tool is integrally inserted into 12 column-hole structures of the lower layer workpiece from the upper layer workpiece so as to align the upper layer workpiece and the lower layer workpiece. The hole-column structure of the positioning hole tool and the column-hole structure of the lower-layer workpiece can form a cooperative and complementary fit clearance, the positioning precision after the comprehensive action is far higher than that after the repeated comparison and adjustment of a single sleeve, and the concentricity of the column-hole structure can be ensured to be less than 0.5mm by the currently adopted positioning hole tool. According to the assembly precision of the large-scale structural part, a proper fit clearance is designed for the positioning tool, and the micron-scale coaxiality assembly precision requirement of the large-scale structural part can be met.
The upper layer and the lower layer in the present invention are illustrated according to the directions of the specification such as fig. 1 and 3-5, for example, in the specification such as fig. 1, the positioning mounting ring is above the truncated cone-shaped positioning pin. Meanwhile, it should be noted that the shape of the positioning mounting ring is not necessarily circular, and the number of the positioning pin shafts is not necessarily 12, which can be set according to the specific situation of the workpiece, the gap error between the anode post and the shaft hole and the gap error between the positioning pin shaft and the inner diameter of the conical cylinder can be set according to the actual situation, if the precision requirement is high, the gap is small, the specific gap size is not repeated here, and the setting can be performed according to the actual situation.
Firstly, analyzing a part machining process:
1. the positioning and mounting ring processing technology comprises the following steps:
1.1, ensuring that the planeness of the lower end face of the positioning mounting ring is less than or equal to 0.02 mm.
1.2, use location collar lower extreme face as the reference surface, process 12 equipartition M16's screw hole, guarantee: the perpendicularity of 12 uniformly distributed M16 threaded holes and a reference plane is less than or equal to 0.02mm, the angle distribution among 12 uniformly distributed M16 threaded holes is 30 degrees +/-5', and the diameter of a circle formed by the centers of 12 uniformly distributed M16 threaded holes is the same as the diameter of a circle formed by the centers of 12M 6 anode post threaded holes, namely phi D +/-0.05 mm.
2. The positioning pin shaft processing technology comprises the following steps:
2.1 finish machining locating pin round pin axle excircle face guarantees: the cylindricity of the round surface is less than or equal to 0.02mm and is taken as a reference surface.
2.2, finish machining locating pin axle hole to phi 6.45 0.025, just fall an angle and be 5 inclined planes (play the guide effect, each male terminal post's when convenient the assembly inserts) at interior hole lower extreme department, guarantee: the coaxiality of the inner hole and the reference surface is less than or equal to 0.02 mm.
2.3, finish machining locating pin M12 screw thread and screw thread lower extreme bottom surface guarantee: the coaxiality of the M16 thread and a reference plane is less than or equal to 0.02 mm; and the verticality between the bottom surface of the lower end of the thread and the reference surface is less than or equal to 0.02 mm.
Second, part assembling process
1. And respectively assembling 12 positioning pin shafts to the welded positioning mounting rings in a threaded connection mode, screwing down and assembling into a positioning tool.
(1) Ensuring that: the lower end face of the thread of each positioning pin shaft is completely contacted with the lower end face of the positioning mounting ring, and the perpendicularity between the outer circular face of each positioning pin shaft and the lower end face of the positioning mounting ring is less than or equal to 0.04 mm.
(2) The diameter phi D of a circular ring formed by the centers of the 12 positioning pin shafts after the assembly is plus or minus 0.075 mm.
Thirdly, anode column: the diameter of the anode column is phi 6 +/-0.025.
And fourthly, during hoisting, when the anode column is inserted into the inner hole of the positioning pin, the clearance of the anode column in the inner hole of the positioning pin is less than 0.5 mm.
Fifthly, selecting a scheme of the positioning tool:
5.1, the positioning tool scheme can adopt two modes of welding and threaded connection.
(1) The welding mode is as follows: if the welding mode is adopted, the following defects exist: firstly, because the diameter of the hoisted workpiece is larger and the weight of the hoisted workpiece is about 1 ton, the welding does not need to use laser welding, argon arc welding is used, the welding mode easily causes the local temperature rise, and further causes the serious over-difference of the verticality of the positioning pin shaft and the positioning mounting disc, so that the anode column can not be inserted into the inner hole of the positioning pin shaft more quickly and accurately when the workpiece is hoisted. Secondly, after welding, the positioning tool is integral, and if a certain pin shaft in the 12 positioning pin shafts has a problem, the whole positioning tool cannot be used.
(2) The threaded connection mode is as follows: in this way, the following advantages are obtained: firstly, the processing precision of a positioning pin shaft and a positioning mounting ring can be respectively controlled, so that the precision of the positioning tool after integral assembly is ensured; tensile strength of a positioning tool consisting of 12M 16 threads is higher; and thirdly, in the trial assembly process, if a certain pin shaft has assembly problems, the pin shaft is convenient to disassemble and carry out independent detection and modification. If the assembly precision needs to be improved, the precision of the 12 positioning pin shafts can be improved independently, so that the requirement of higher precision is met, and meanwhile, the cost is saved.
In order to meet the requirements of the embodiment, the above processing technology describes the detailed processing dimensions of the multi-hole positioning tool of the embodiment, and meanwhile, the general design criteria for similar positioning tools are as follows: the tool can meet the requirement of coaxiality of the whole insulated transmission line, namely, the design sizes of the hole-column structure of the positioning tool and the column-hole structure of the magnetic insulated transmission line are matched synchronously, so that the requirement is met, and other optional positioning tools can meet the required assembly precision.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a porous location frock of compact which characterized in that includes:
the outer diameter of each positioning pin shaft (1) is matched with an inner hole of an upper-layer workpiece (2), a plurality of positioning pin shafts (1) are arranged, the positioning pin shafts (1) are connected to a positioning mounting ring (3) together, and the axial length of each positioning pin shaft (1) is not less than the stacking height of the upper-layer workpiece (2) and the lower-layer workpiece (2a) in a stacking mode;
shaft hole (4), shaft hole (4) are followed the axis direction of locating pin axle (1) runs through locating pin axle (1) sets up, just the internal diameter in shaft hole (4) matches with the diameter that sets up at anode column (2b) of lower floor's work piece.
2. The compact type porous positioning tool according to claim 1, characterized in that a threaded hole is formed in the positioning mounting ring (3) in a vertically penetrating manner, an external thread matched with the internal thread of the threaded hole is arranged above the periphery of the positioning pin shaft (1), and the positioning pin shaft (1) is in threaded connection with the threaded hole.
3. The compact multihole positioning tool of claim 1, further comprising a handle (5), wherein the handle (5) is mounted on the positioning and mounting ring (3).
4. The compact type multi-hole positioning tool according to claim 3, characterized in that two handles (5) are provided, and the two handles (5) are symmetrically arranged at two ends of the positioning and mounting ring (3) in a radial direction parallel to the positioning pin shaft (1).
5. The compact multi-hole positioning tool according to claim 4, characterized in that the handles (5) are U-shaped, and openings of the two U-shaped handles (5) are arranged oppositely.
6. The compact type porous positioning tool according to claim 1, wherein one end of the positioning pin shaft (1) far away from the positioning mounting ring (3) is in a shape of a truncated cone with a large top and a small bottom.
7. The compact multi-hole positioning tool according to claim 1, characterized in that the lower end of the shaft hole (4) is provided with an outward-inclined chamfer.
8. The compact type porous positioning tool according to claim 6, wherein the positioning pin shaft (1) comprises a vertical part (1a) and a circular table part (1b), and the position of the intersection of the vertical part (1a) and the circular table part (1b) is in a smooth circular arc shape.
9. The compact multi-hole positioning tool according to claim 2, wherein 12 threaded holes are provided.
10. The compact multi-hole positioning tool of claim 9, wherein the angular distribution between the threaded holes is 30 ° ± 5'.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220800029.8U CN216913583U (en) | 2022-04-06 | 2022-04-06 | Compact type porous positioning tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220800029.8U CN216913583U (en) | 2022-04-06 | 2022-04-06 | Compact type porous positioning tool |
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| CN216913583U true CN216913583U (en) | 2022-07-08 |
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| CN202220800029.8U Active CN216913583U (en) | 2022-04-06 | 2022-04-06 | Compact type porous positioning tool |
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