CN211464889U - Multi-station drilling tool - Google Patents

Abstract

The utility model belongs to the technical field of machining, a frock is used in multistation drilling is disclosed, a plurality of holes are processed out on treating the drilling part for the solid of revolution, a plurality of holes are along the circumference interval distribution of treating the drilling part, which comprises a base, bushing plate and locating component, the locating hole has been seted up on the bushing plate, the locating hole is configured to hold the part of treating drilling, locating component locates on the bushing plate, and treat the drilling part location, the circumference interval distribution of bushing plate has a plurality of drilling hole portions, all be equipped with the drill bushing with the locating hole intercommunication on every drilling hole portion, treat on the drilling part every and treat that the drilling position all corresponds a drill bushing, be equipped with a plurality of installation departments on the bushing plate, but every installation department selectivity and base cooperation, in order to make one of them drill bushing can be aligned with the broach. The utility model discloses need not to relapse the clamping and treat the drilling part, only need adjust the position of bushing plate on the base, can accomplish a plurality of hole sites of treating the circumference of drilling part and process, the size and the position precision in hole are high.

Description

Multi-station drilling tool

Technical Field

The utility model relates to the technical field of machining, especially, relate to a frock is used in multistation drilling.

Background

For a circular tube part, thin-walled holes (which do not penetrate through the inner and outer walls of the circular tube) which are uniformly distributed along the circumferential direction and have a requirement on position accuracy are processed on the outer side surface of the circular tube part, and a vertical drilling machine is generally used for processing.

The existing drilling tool for the vertical drilling machine needs to have the bottom surface of a base as a reference, a hole of a drill bushing assembled on a drill plate is perpendicular to the lower bottom surface to be matched with the vertical drilling machine for drilling, hole sites uniformly distributed in 360 degrees on a cylindrical surface need to be drilled, in order to have a bottom surface reference, a hole on a part is generally drilled first, other holes on the part are drilled by taking the drilled hole as the reference, the part needs to be clamped repeatedly, the positioning is not accurate, the position of the part can be changed by repositioning every time, the drilling precision is not high, and under the condition that the size of the part is small, a drill cutter is easy to deviate during drilling to drill through the inner wall and the outer wall of the part, and the positioning part needs a special positioning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a multistation is frock for drilling need not to relapse the clamping and treats the drilling part, and the machining precision of hole site is high.

In order to realize the purpose, the following technical scheme is provided:

a multi-station drilling tool is used for processing a plurality of holes on a part to be drilled, the part to be drilled is a revolving body, the holes are distributed at intervals along the circumferential direction of the part to be drilled, and the tool comprises a base, a drilling template and a positioning assembly, the drill jig plate is provided with a positioning hole which is configured to accommodate the part to be drilled, the positioning assembly is arranged on the drill jig plate, and positioning the part to be drilled, wherein a plurality of drilling holes are distributed at intervals in the circumferential direction of the drilling template, each drilling hole is provided with a drilling sleeve communicated with the positioning hole, treat that every on the part of driling waits that the hole position all corresponds one the drill bushing, be equipped with a plurality of installation departments on the bushing board, every the installation department selectively with the base cooperation makes one of them the drill bushing can with the drill cutter alignment selectively.

Further, still include mistake proofing piece, at least one be equipped with first mistake proofing structure on the drilling portion, treat to be equipped with second mistake proofing structure on the drilling part, mistake proofing piece be configured into simultaneously with second mistake proofing structure with the cooperation of first mistake proofing structure, so that treat on the drilling part drill hole position with drill bushing one-to-one on the bushing plate.

Furthermore, the mounting portion is a positioning imaginary part formed between two adjacent drilling portions, and a positioning convex part is arranged on the base and can be selectively matched with the positioning imaginary part formed by any two adjacent drilling portions.

Further, the positioning assembly comprises a first positioning assembly and a second positioning assembly, the first positioning assembly is configured to position the part to be drilled in the axial direction, and the second positioning assembly is configured to position the part to be drilled in the circumferential direction.

Furthermore, the first positioning assembly comprises a fixing plate and a fastening piece, the end face of the flange plate of the part to be drilled is attached to one side of the drilling template, one end of the fastening piece extends into and penetrates through the part to be drilled from one end of the flange plate of the part to be drilled and is connected with the fixing plate, the other end of the fastening piece is attached to the end face of the flange plate, and the fixing plate is locked to the other side of the drilling template by the fastening piece.

Furthermore, the second positioning assemblies are arranged on at least two of the drilling parts, and one ends of the second positioning assemblies are configured to extend into the positioning holes and abut against the peripheral wall of the part to be drilled.

Furthermore, the second positioning component is a screw rod, the drilling sleeve is provided with a threaded hole communicated with the positioning hole, and the screw rod is matched with the screw rod.

Furthermore, at least one through avoidance imaginary part is arranged on the fixing plate, and the avoidance imaginary part is communicated with the positioning hole.

Furthermore, an avoidance groove corresponding to the avoidance imaginary part is formed in the inner wall of the positioning hole at one end, close to the fixing plate, of the positioning hole.

Furthermore, the number of the drilling hole parts is three, and the three drilling hole parts are uniformly distributed along the circumferential direction of the drilling template.

Compared with the prior art, the utility model provides an in the frock is used in multistation drilling, treat during the drilling part locates the locating hole, the axial and the circumference location of drilling part are treated to locating component, there are a plurality of drilling parts along the circumference interval distribution of bushing plate, all be equipped with the drill bushing with the locating hole intercommunication on every drilling part, the work end of boring cutter can stretch into the locating hole by the drill bushing, in order to drill on treating the drilling part, treat that every on the drilling part treats that the drilling position all corresponds a drill bushing, be equipped with a plurality of installation departments on the bushing plate simultaneously, every installation department selectively cooperates with the base, thereby selectively make one of them drill bushing can with the boring cutter alignment. Through the position of adjusting the bushing plate, make every installation department cooperate with the base in proper order, can make the drill cutter align with each drill bushing respectively to in proper order in the circumference drilling of waiting to drill the part, need not to relapse the clamping and wait to drill the part, only need the position of adjustment bushing plate on the base, can accomplish a plurality of hole sites of waiting to drill the circumference of part and process, the size and the position precision in hole are high, simple structure, convenient operation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a first perspective view of a multi-station drilling tool according to an embodiment of the present invention;

fig. 2 is a second axial view of the multi-station drilling tool according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a drilling template provided by an embodiment of the present invention.

Reference numerals:

1-a base; 2, drilling a template; 3-a positioning assembly; 4-error prevention; 5, drilling a sleeve;

11-a positioning boss;

21-positioning holes; 22-a drilling section; 23-locating the imaginary part;

211-avoiding the groove;

221-a first surface; 222-a second surface; 223-a third surface; 224-a fourth surface; 225-first error-proofing structure;

31-a first positioning assembly; 32-a second positioning assembly;

311-fasteners; 312-a fixed plate;

3121-avoid imaginary part.

Detailed Description

In order to make the technical problems, technical solutions adopted and technical effects achieved by the present invention clearer, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the present embodiment provides a multi-station drilling tool, which can machine a plurality of holes on a to-be-drilled part of a revolving body, wherein the plurality of holes are distributed at intervals in the circumferential direction of the to-be-drilled part, and the position accuracy of the machined holes is high.

In this embodiment, the part of waiting to drill connects for the pipe that is used for on the solenoid valve, and a plurality of hole sites equipartition are located the circumference of pipe structure, and the hole does not pierce through the interior outer wall that the pipe connects. Of course, the part to be drilled can also be other revolving body parts in a sleeve shape, a cylindrical shape or a conical shape, and the hole to be machined can also penetrate through the inner wall and the outer wall of the part to be drilled or not.

The multi-station drilling tool can selectively comprise a base 1, a drilling template 2 and a positioning assembly 3. The base 1 is fixed on the workbench, the drill jig plate 2 is arranged on the base 1, the part to be drilled is arranged on the drill jig plate 2, and the positioning assembly 3 is used for fixing the part to be drilled.

Specifically, the drilling template 2 is provided with a positioning hole 21, and the part to be drilled is arranged in the positioning hole 21. Optionally, the aperture precision of the positioning hole 21 is controlled within a range 0-0.05mm larger than the tolerance of the excircle of the part to be drilled, so that a certain positioning effect is achieved. The part to be drilled is placed into the positioning hole 21, and the end face of the flange of the part to be drilled is attached to the side face of the drilling template 2. The positioning assembly 3 is arranged on the drill jig plate 2 and used for axially and axially positioning the part to be drilled, and moving and dislocation in the drilling process are prevented.

Furthermore, the drilling template 2 is windmill-shaped, a plurality of drilling parts 22 are distributed at intervals along the circumferential direction of the drilling template 2, each drilling part 22 is provided with a drilling sleeve 5 communicated with the positioning hole 21, and the working end of the drilling tool can extend into the positioning hole 21 from the drilling sleeve 5 so as to drill holes on the parts to be drilled. The drilling template 2 is provided with a plurality of mounting portions, each of which can be selectively matched with the base 1, so that one of the drill sleeves 5 can be selectively aligned with the drill bit. Through adjusting the position of bushing plate 2, can make the drill jig align with each drill bushing 5 respectively, in the circumference drilling of waiting to drill the part in proper order, need not to clamp repeatedly and wait to drill the part, only need adjust the position of bushing plate 2 on base 1, can accomplish a plurality of hole sites processing of ascending circumference, the size and the position precision of hole site are high.

In order to realize the installation and positioning of the part to be drilled and improve the position precision of the processed hole, the multi-station drilling tool further comprises an error-proofing piece 4, a first error-proofing structure 225 is arranged on at least one drilling part 22, a second error-proofing structure is arranged on the part to be drilled, and the error-proofing piece 4 is simultaneously matched with the second error-proofing structure and the first error-proofing structure 225 so that the part to be drilled on the part to be drilled corresponds to the drill bushings 5 on the drill jig plate 2 one to one.

Alternatively, the first error-proofing structure 225 is an error-proofing hole provided on the drilling portion 22, the second error-proofing structure is an error-proofing groove provided on the flange of the part to be drilled, and the error-proofing member 4 is an error-proofing rod. And determining the processing position of the second error-proofing structure on the part to be drilled according to the preset processing position of each hole position on the part to be drilled and the relative position of the first error-proofing structure 225 and the drill bushing 5.

In this embodiment, three hole sites which are uniformly distributed at intervals need to be processed in the circumferential direction of the part to be drilled, so that the drilling portions 22 are provided with three hole sites which are uniformly distributed at intervals in the circumferential direction of the drilling template 2, and the three drilling portions 22 correspond to the three hole sites to be drilled one by one. The number of the drilling holes 22 and the distribution mode thereof in the circumferential direction of the drilling template 2 correspond to the number and the distribution mode of the parts to be drilled on the part to be drilled. For example, if the number of positions to be drilled is six, the number of the drill portions 22 is six; the included angles between adjacent drilling sites are different, and the included angles of the corresponding adjacent drilling portions 22 are also different. In addition, the drilling template 2 with six uniformly distributed drilling parts 22 is also suitable for machining parts to be drilled, wherein the positions to be drilled are three and are uniformly distributed.

In the present embodiment, each of the drill portions 22 includes a first surface 221, a second surface 222, a third surface 223, and a fourth surface 224 which are adjacent in this order. The imaginary positioning parts 23 are formed between the first surface 221 and the fourth surface 224 of two adjacent drilling parts 22, and the imaginary positioning parts 23 are the mounting parts. The base 1 is provided with a positioning convex part 11, and the positioning convex part 11 can be selectively matched with the positioning imaginary parts 23 of any two adjacent drilling hole parts 22 so as to realize adjustable installation and positioning of the drilling template 2 on the base 1.

Preferably, the cross section of the positioning convex part 11 is V-shaped, the surfaces of the positioning convex part 11 respectively matched with the two adjacent drilling parts 22 are a first matching surface and a second matching surface, both the first matching surface and the second matching surface incline upwards and downwards, the vertical downward force applied by the drilling machine acts on the positioning convex part 11 through the two adjacent drilling parts 22 and is borne by the first matching surface and the second matching surface, the larger the vertical acting force applied by the drilling machine is, the more stable the installation of the drilling template 2 on the base 1 is, and thus the processing precision of hole sites is ensured.

The drill bushing 5 is processed on the first surface 221, the first surface 221 and the fourth surface 224 on two adjacent drill hole portions 22 are perpendicular, and the formed positioning imaginary part 23 plays a positioning role and is used for avoiding a drill press, so that the traveling path of the drill is shortest, the situation that the drill press is too long and has insufficient rigidity is avoided, and the drilling precision is improved.

The second surface 222 of the drilling portion 22 is attached to the horizontal surface of the base 1, and the first surface 221 of the drilling portion 22 and the fourth surface 224 of the adjacent drilling portion 22 are engaged with the positioning protrusion 11 of the base 1.

Further, the positioning assembly 3 includes a first positioning assembly 31 and a second positioning assembly 32, the first positioning assembly 31 axially positions the part to be drilled, and the second positioning assembly 32 circumferentially positions the part to be drilled.

The first positioning assembly 31 includes a fixing plate 312 and a fastening member 311. One end of the fastening piece 311 extends into and penetrates through one end of the flange of the part to be drilled and is connected with the fixing plate 312, the other end of the fastening piece 311 is attached to the end face of the flange, and the fixing plate 312 is locked on the other side of the drilling template 2 by the fastening piece 311, so that the axial fixation of the part to be drilled is realized. The fasteners 311 are preferably bolts and nuts.

The at least two drilling portions 22 are provided with second positioning assemblies 32, and one end of each second positioning assembly 32 extends into the positioning hole 21 and abuts against the peripheral wall of the part to be drilled so as to fix the part to be drilled in the circumferential direction. In this embodiment, the second positioning assembly 32 is disposed on two drilling portions 22 without the first error-proofing structure 225. The second positioning component 32 is preferably a screw, and a threaded hole communicated with the positioning hole 21 is formed in the corresponding drilling portion 22, and the screw is matched with the threaded hole, so that the assembly and disassembly are convenient. Preferably, a threaded hole opens in the third surface 223 of the drill portion 22, the axis of the threaded hole and the axis of the hole of the drill bushing 5 being non-interfering.

In order to conveniently observe the drilling condition and avoid the drill cutter from damaging the tool, at least one through avoidance imaginary part 3121 is arranged on the fixing plate 312, and the avoidance imaginary part 3121 is communicated with the positioning hole 21. Preferably, an avoidance imaginary part 3121 is provided corresponding to each drill bushing 5, and the avoidance imaginary part 3121 is an avoidance groove provided around the fixing plate 312. In order to increase the observation field range, an avoidance groove 211 corresponding to the avoidance imaginary part 3121 is formed on the inner wall of the positioning hole 21 at one end of the positioning hole 21 close to the fixing plate 312.

The use method of the tool for multi-station drilling provided by the embodiment is approximately as follows:

the part to be drilled is placed into the positioning hole 21, the flange end face of the part to be drilled is attached to the side face of the drilling template 2, and the error-proof part 4 is sequentially connected with the second error-proof structure and the first error-proof structure 225 so as to position the part to be drilled to a correct position, so that the positions to be drilled on the part to be drilled correspond to the drill bushings 5 on the drilling holes 22 one by one;

the part to be drilled is axially locked by a fastener 311 and a fixing plate 312;

and matching the positioning imaginary parts 23 between two adjacent drilling parts 22 with the positioning convex parts 11 on the base 1 to complete the positioning installation and drilling of the drilling template 2, rotating the drilling template 2 and matching the rest positioning imaginary parts 23 with the positioning convex parts 11 in sequence to complete the processing of all hole positions.

The multistation frock for drilling that this embodiment provided, treat the drilling part carry on once fix a position the clamping can, need not to relapse the dismouting, positioning accuracy is high, the size and the position accuracy in the hole that process out are high, and overall structure is simple, convenient operation.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. The utility model provides a multistation is frock for drilling for process a plurality of holes on waiting to drill the part, wait to drill the part for the solid of revolution, a plurality of the hole is followed wait to drill the circumference interval distribution of part, its characterized in that includes base (1), bushing plate (2) and locating component (3), locating hole (21) have been seted up on bushing plate (2), locating hole (21) are configured to hold wait to drill the part, locating component (3) are located on bushing plate (2), and right wait to drill the part location, the circumference interval distribution of bushing plate (2) has a plurality of drilling portion (22), all be equipped with on every drilling portion (22) with drill bushing (5) of locating hole (21) intercommunication, wait to drill on the part every and all correspond one drill bushing (5), be equipped with a plurality of installation departments on bushing plate (2), each mounting portion is selectively engageable with the base (1) to selectively enable alignment of one of the drill sleeves (5) with a drill bit.

2. The multi-station drilling tool according to claim 1, further comprising an error prevention piece (4), wherein a first error prevention structure (225) is arranged on at least one of the drilling holes (22), a second error prevention structure is arranged on the part to be drilled, and the error prevention piece (4) is configured to be matched with the second error prevention structure and the first error prevention structure (225) simultaneously, so that the positions to be drilled on the part to be drilled correspond to the drill bushings (5) on the drilling template (2) in a one-to-one manner.

3. The tooling for multi-station drilling according to claim 1, wherein the mounting portion is an imaginary positioning part (23) formed between two adjacent drilling portions (22), a positioning convex portion (11) is arranged on the base (1), and the positioning convex portion (11) can be selectively matched with the imaginary positioning part (23) formed by any two adjacent drilling portions (22).

4. The tooling for multi-station drilling according to claim 1, wherein the positioning assembly (3) comprises a first positioning assembly (31) and a second positioning assembly (32), the first positioning assembly (31) is configured for axial positioning of the part to be drilled, and the second positioning assembly (32) is configured for circumferential positioning of the part to be drilled.

5. The tooling for multi-station drilling according to claim 4, wherein the first positioning assembly (31) comprises a fixing plate (312) and a fastening piece (311), the flange end face of the part to be drilled is attached to one side of the drilling template (2), one end of the fastening piece (311) extends into and penetrates through the part to be drilled from one end of the flange of the part to be drilled and is connected with the fixing plate (312), the other end of the fastening piece (311) is attached to the flange end face, and the fixing plate (312) is locked to the other side of the drilling template (2) by the fastening piece (311).

6. The tooling for multi-station drilling according to claim 4, wherein the second positioning assembly (32) is arranged on at least two of the drilling parts (22), and one end of the second positioning assembly (32) is configured to extend into the positioning hole (21) and abut against the peripheral wall of the part to be drilled.

7. The tool for multi-station drilling according to claim 6, wherein the second positioning component (32) is a screw, a threaded hole communicated with the positioning hole (21) is formed in the drilling portion (22), and the screw is matched with the screw.

8. The tooling for multi-station drilling according to claim 5, wherein the fixing plate (312) is provided with at least one through imaginary avoiding part (3121), and the imaginary avoiding part (3121) is communicated with the positioning hole (21).

9. The tooling for multi-station drilling according to claim 8, wherein an avoidance groove (211) corresponding to the avoidance imaginary part (3121) is formed on the inner wall of the positioning hole (21) at one end of the positioning hole (21) close to the fixing plate (312).

10. The tooling for multi-station drilling according to any one of claims 1 to 9, wherein the number of the drilling parts (22) is three, and the three drilling parts (22) are uniformly distributed along the circumferential direction of the drilling template (2).

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