CN211248439U

CN211248439U - Special high-precision drilling machine for conical surface workpiece

Info

Publication number: CN211248439U
Application number: CN201922325503.7U
Authority: CN
Inventors: 陶继超; 陈雨
Original assignee: Wuxi Aierxin Precision Machinery Manufacturing Co ltd
Current assignee: Wuxi Aierxin Precision Machinery Manufacturing Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-08-14
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to a special high accuracy drilling machine of conical surface work piece, it includes headstock, the drill bit that is connected with headstock internal drive mechanism and the workstation that is located directly below the drill bit, the slope is equipped with a reference column on the workstation, the acute angle that presss from both sides between the axis direction of reference column and the workstation plane equals the contained angle between generating line and the axis of round platform portion; one end, far away from the workbench, of the positioning column is provided with a clamping block capable of being clamped and embedded with the U-shaped groove, and the side face of one side of the clamping block in the length direction is perpendicular to or parallel to the plane of the workbench. The utility model has the advantages of be applicable to at the drilling of part conical surface and drilling high efficiency, accurate.

Description

Special high-precision drilling machine for conical surface workpiece

Technical Field

The utility model relates to a machine tool especially relates to a special high accuracy drilling machine of conical surface work piece.

Background

Fig. 1 shows a plastic part including a cylindrical main body 1 and a boss 11 coaxially provided at one end of the main body 1, wherein a U-shaped groove 12 is formed in one side of the main body 1 in a longitudinal direction, and a through hole 14 deviating from an axial direction of the boss 11 is formed in the boss 11. The through hole 14 communicates with the U-shaped groove 12 and is offset from the axial direction of the circular table portion 11. The conical surface of the circular truncated cone portion 11 and the circumferential side surface of the main body 1 are both provided with mounting holes 13, and the axial direction of the mounting holes 13 on the main body 1 is perpendicular to the axial direction of the main body 1. The sum of an acute angle between the axis of the mounting hole 13 on the circular table portion 11 and the axis of the circular table portion 11 and an included angle between the generatrix and the axis of the circular table portion 11 is equal to 90 °. Therefore, the difficulty of drilling the parts is increased, especially the difficulty of forming the mounting hole 13 on the circular table portion 11: 1. the fixing difficulty of the cylindrical part is increased, and the drilling position deviation caused by the looseness is easy to occur in the drilling process; 2. when drilling, the end part of the drill bit is easy to deflect to one side due to the conical surface; 3. the sum of the included angle between the axial direction of the drill and the axial direction of the circular table part 11 and the inclination of the side surface of the circular table part 11 of the part is equal to 90 degrees, and the mounting hole 13 related to the requirement cannot be accurately obtained.

The conventional drilling machine, such as the drilling machine disclosed in chinese patent nos. CN200963699Y and CN101168200B, is not suitable for drilling the above-mentioned parts because the axial direction of the drill cannot be changed, the relative position between the drill and the part can be adjusted only by moving the spindle head or the table for fixing the workpiece, and the sum of the included angle between the axial direction of the drill and the axial direction of the table portion and the inclination of the side face of the table portion of the part cannot be adjusted to 90 °.

Therefore, it is necessary to design a special high-precision drilling machine for the above parts.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a special high accuracy drilling machine of circular conical surface work piece, it is applicable to and has the high advantage of drilling precision in part circular conical surface drilling.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a high-precision drilling machine special for conical surface workpieces comprises a spindle box, a drill bit connected with a driving mechanism in the spindle box and a workbench located right below the drill bit, wherein a positioning column is obliquely arranged on the workbench, and an acute angle formed between the axis direction of the positioning column and the plane of the workbench is equal to an included angle formed between a bus of the circular table part and the axis; one end, far away from the workbench, of the positioning column is provided with a clamping block capable of being clamped and embedded with the U-shaped groove, and the side face of one side of the clamping block in the length direction is perpendicular to or parallel to the plane of the workbench.

Through adopting above-mentioned technical scheme, when carrying out drilling and processing, locate fixture block department with the part cover for the fixture block card is gone into in the U type inslot in the part main part, accomplishes the fixed of work piece promptly. Because the included angle between the axis direction of the positioning column and the plane of the workbench is equal to the included angle between the generatrix and the axis of the circular table part, the drill bit can be fed along the axis of the drill bit to finish the arrangement of the mounting hole on the side surface of the circular table part, the sum of the included angle between the acute angle clamped between the axis of the arranged mounting hole and the axis of the circular table part and the included angle between the generatrix and the axis of the circular table part is equal to 90 degrees, and the deviation is not. The utility model is suitable for a drilling processing on the circular conical surface work piece, fixed work piece is convenient and the drilling degree of accuracy is high, the deviation is little.

Furthermore, one end of the clamping block, which is far away from the positioning column, is provided with a positioning rod which can be inserted and embedded with the through hole.

Through adopting above-mentioned technical scheme, when clamping the part for the locating lever inserts the through hole, has further increased the installation stability of part.

Further, the length of the positioning rod is greater than or equal to the depth of the through hole.

Through adopting above-mentioned technical scheme for the difficult pine of following the locating lever of part takes off in the drilling process, has improved the drilling precision.

Furthermore, the positioning column comprises a first column body fixed on the workbench and a second column body detachably connected to one end, far away from the workbench, of the first column body, and the fixture block is arranged on the second column body; the end face of the second cylinder is provided with a plurality of inserting rods which are distributed around the axis of the second cylinder at equal intervals, and the end face of the first cylinder is provided with a plurality of inserting holes for the inserting rods to insert.

Through adopting above-mentioned technical scheme, accomplish the back of seting up of a mounting hole, separate first cylinder and second cylinder, after 360 minutes of circumferential rotation second cylinder N, insert the jack with the inserted bar again. At the moment, a second mounting hole can be formed in the part, and the forming of the plurality of mounting holes in the conical surface of the circular table part can be rapidly completed by repeating the steps, and the spaces among the formed mounting holes are the same.

Furthermore, a turntable is rotatably arranged on the workbench, and the positioning column is fixed on the turntable; the positioning columns are arranged in a plurality and are distributed at equal intervals along the circumferential direction of the rotary table, and the end part of each positioning column is provided with a clamping block; and the workbench is provided with a fixing mechanism for fixing the position of the turntable.

Through adopting above-mentioned technical scheme, can set up reference column and the fixture block that is used for fixed not unidimensional part on the carousel, can the not unidimensional part drilling processing requirement of adaptation. The machining position can be switched by rotating the turntable as required, and the position of the turntable is locked by the fixing mechanism after the machining position is switched.

Furthermore, the fixing mechanism comprises a positioning block and a push-pull component, wherein the positioning block is movably arranged, the push-pull component is used for generating push-pull power to drive the positioning block to move along the radial direction of the rotary table, and a plurality of positioning grooves for clamping and embedding the positioning block are formed in the periphery of the rotary table at equal intervals.

Through adopting above-mentioned technical scheme, the push-and-pull part produces the pulling force and orders about the locating piece and moves back to break away from the constant head tank, the carousel can the free rotation this moment, can conveniently switch the processing station. After the machining positions are switched, the push-pull component generates thrust to drive the positioning block to be clamped into the positioning groove, and therefore the position of the rotary table is locked. When necessary, a driving device, such as a stepping motor, can be arranged on the turntable, and the stepping motor can automatically drive the turntable to rotate to complete the switching of the processing positions.

Further, the push-pull member is a pneumatic cylinder or a hydraulic cylinder provided to the table.

Pneumatic cylinder and pneumatic cylinder are installed and control easily, make the utility model discloses the scheme is realized easily.

Furthermore, a base plate is arranged at one end, away from the clamping block, of the positioning column, and the base plate is connected with the rotary table through a bolt.

Through adopting above-mentioned technical scheme, the backing plate has increased the area of contact between reference column and the carousel for it is firm to be connected between reference column and the carousel. Meanwhile, the base plate with the proper thickness is selected, so that the part cannot touch the table top or the turntable of the workbench after being installed, and the interference problem cannot occur.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the clamping block at the end part of the positioning column which is obliquely arranged at a specific angle is in clamping and embedding fit with the U-shaped groove on the part, so that the part can be quickly fixed, the part is not easy to deflect during drilling, the inclination angle of the part also meets the drilling requirement, and the drilling tool has the advantages of high drilling efficiency and accurate drilling;

2. the positioning column comprises a first column body and a second column body which are detachably arranged, after one mounting hole is formed, the second column body is detached, the first column body and the second column body are assembled after rotating for a certain angle in the circumferential direction, the second mounting hole can be formed, so that a plurality of mounting holes can be formed on the conical surface at equal intervals repeatedly, and the hole forming position is accurate;

3. set up the reference column that the multiunit is used for fixed part on the carousel, set up fixed establishment simultaneously, can switch as required and add the station, can satisfy not unidimensional part drilling processing demand.

Drawings

FIG. 1 is a first schematic structural diagram of a part in the background art;

FIG. 2 is a schematic structural diagram II of a part in the background art;

FIG. 3 is a side view of the special high-precision drilling machine for conical surface workpieces in the embodiment;

FIG. 4 is a schematic structural diagram of a special high-precision drilling machine for conical surface workpieces in the embodiment;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is an exploded view of the locating post of the embodiment;

FIG. 7 is a diagram illustrating the operation conditions of the positioning post, the fixture block and the positioning post.

In the figure, 1, main body; 11. a circular table portion; 12. a U-shaped groove; 13. mounting holes; 14. a through hole; 2. a frame; 21. a main spindle box; 22. a drill bit; 3. a work table; 31. a push-pull member; 32. positioning blocks; 4. a turntable; 41. positioning a groove; 5. a positioning column; 51. a first column; 511. a jack; 52. a second cylinder; 521. inserting a rod; 6. a clamping block; 7. positioning a rod; 8. a base plate; 81. and (5) fixing the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A special high-precision drilling machine for conical surface workpieces refers to fig. 3 and 4 and comprises a machine frame 2, a main spindle box 21 arranged on the machine frame 2 and a drill bit 22 connected with a driving mechanism in the main spindle box 21. The frame 2 is provided with a workbench 3 right below the drill 22, and the workbench 3 is rotatably provided with a circular turntable 4. The turntable 4 is provided with a clamp for fixing a workpiece to be processed.

Referring to fig. 4 and 5, the fixture comprises a positioning column 5 fixedly connected to the turntable 4, the positioning column 5 is arranged obliquely, and an acute angle between the axial direction of the positioning column 5 and the plane of the worktable 3 is equal to an included angle between a generatrix of the circular table portion 11 and the axial direction. One end of the positioning column 5, which is far away from the turntable 4, is fixedly connected with a fixture block 6, and the shape of the fixture block 6 is matched with the U-shaped groove 12 on the part. When the parts need to be drilled, the parts are sleeved at the clamping block 6, so that the clamping block 6 is clamped and embedded with the U-shaped groove 12. At this time, the sum of the acute angle between the axis of the drill 22 and the axis of the part and the acute angle between the generatrix of the circular truncated cone portion 11 and the axis is equal to 90 °, and the drill 22 is fed to complete drilling.

Referring to fig. 4 and 5, in order to increase the fixing stability of the components, a positioning rod 7 is disposed at one end of the fixture block 6 away from the positioning column 5. The diameter of the positioning rod 7 is equal to that of the through hole 14 on the part, and the length of the positioning rod is larger than the depth of the through hole 14. When the part is fixed, the clamping block 6 is clamped into the U-shaped groove 12, and the positioning rod 7 is inserted into the through hole 14, so that the part is firmly fixed.

Referring to fig. 5 and 6, in order to facilitate the rotational adjustment of the position of the component, mounting holes 13 are uniformly formed in the component along the axial direction of the circular table portion 11. In this embodiment, the positioning column 5 includes a first column body 51 and a second column body 52 which are detachably connected. The end surface of the first column 51 far away from the turntable 4 is provided with four insertion holes 511, and the four insertion holes 511 are distributed at equal intervals around the axis of the first column 51. Four inserting rods 521 are arranged on the end face of the second column 52, and the four inserting rods 521 are distributed at equal intervals around the axis of the second column 52. The insertion rod 521 on the second cylinder 52 is inserted into the insertion hole 511 at the end of the first cylinder 51, so that the connection between the first cylinder 51 and the second cylinder 52 is completed. And (3) processing the part, wherein the part and the second cylinder 52 can be rotated in the circumferential direction by a certain angle, and then the inserted rod 521 is inserted into the insertion hole 511, so that the angle of the part is adjusted to complete the opening of the plurality of mounting holes 13. In this embodiment, four insertion rods 521 are provided, and four mounting holes 13 can be drilled at four times after rotating 90 degrees each time, so that four mounting holes 13 can be formed on the conical surface of the part at equal intervals.

Referring to fig. 4 and 5, four positioning columns 5 are arranged on the turntable 4, and a clamping block 6 and a positioning rod 7 are arranged at the tail end of each positioning column 5. Every reference column 5 is kept away from fixture block 6 one end and all is provided with backing plate 8, and fixing bolt 81 has all been inserted in backing plate 8's four corners, can dismantle through fixing bolt 81 between backing plate 8 and the carousel 4 and be connected. According to needs, four groups of positioning columns 5 provided with clamping blocks 6 with different sizes can be arranged on the turntable 4, so that the positioning columns can be respectively used for drilling processing of parts with different sizes.

Referring to fig. 4 and 5, the periphery of the rotating disk 4 is provided with four positioning grooves 41, and the positioning grooves 41 are distributed at equal intervals along the circumferential direction of the rotating disk 4. A push-pull member 31 is provided on the table 3 in the radial direction of the turntable 4. In this embodiment, the push-pull member 31 is a pneumatic cylinder, and a positioning block 32 is provided at a driving end of the pneumatic cylinder. When the push-pull component 31 generates a pushing force, the positioning block 32 moves to be clamped into the positioning groove 41, so that the position of the rotary table 4 is fixed; when the push-pull member 31 generates a pulling force, the positioning block 32 is disengaged from the positioning groove 41, and the turntable 4 can be rotated to switch the processing positions.

The implementation principle of the embodiment is as follows:

the part is sleeved on the positioning rod 7, so that the positioning rod 7 penetrates through the through hole 14 on the part and the fixture block 6 to be clamped into the U-shaped groove 12, and the state is shown in fig. 7. At this time, the part cannot rotate circumferentially, and the included angle between the axis of the drill 22 and the axis of the circular table part 11 meets the drilling requirement. The spindle box 21 is utilized to drive the drill bit 22 to feed, so that the drilling is completed, and the drilling is efficient and accurate in position. After one drilling is completed, the first cylinder 51 and the second cylinder 52 are separated, so that after the second cylinder 52 rotates by 90 degrees along with the parts in the circumferential direction, the inserted rod 521 on the second cylinder 52 is inserted into the insertion hole 511 on the first cylinder 51, the assembly of the first cylinder 51 and the second cylinder 52 is completed, and then the second mounting hole 13 is processed. By repeating the above operation, four mounting holes 13 are formed in the conical surface of the circular truncated cone portion 11 at equal intervals. Adopt the utility model discloses a special high accuracy drilling machine of conical surface work piece carries out drilling processing, has the part that clamps convenience, easy operation, the high-efficient and accurate advantage of drilling processing.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a special high accuracy drilling machine of circular conical surface work piece, includes headstock (21), drill bit (22) and workstation (3) that are located directly below drill bit (22) that are connected with headstock (21) inside actuating mechanism, its characterized in that: a positioning column (5) is obliquely arranged on the workbench (3), and an acute angle formed between the axis direction of the positioning column (5) and the plane of the workbench (3) is equal to an included angle formed between a bus of the circular table part (11) and the axis; one end, far away from the workbench (3), of the positioning column (5) is provided with a clamping block (6) capable of being clamped and embedded with the U-shaped groove (12), and the side face of one side of the clamping block (6) in the length direction is perpendicular to or parallel to the plane of the workbench (3).

2. The special high-precision drilling machine for conical-surface workpieces as claimed in claim 1, wherein the special high-precision drilling machine comprises: and one end of the clamping block (6) far away from the positioning column (5) is provided with a positioning rod (7) which can be inserted and matched with the through hole (14).

3. The special high-precision drilling machine for conical-surface workpieces as claimed in claim 2, wherein the special high-precision drilling machine comprises: the length of the positioning rod (7) is more than or equal to the depth of the through hole (14).

4. The special high-precision drilling machine for conical-surface workpieces as claimed in any one of claims 1 to 3, wherein: the positioning column (5) comprises a first column body (51) fixed on the workbench (3) and a second column body (52) detachably connected to one end, far away from the workbench (3), of the first column body (51), and the fixture block (6) is arranged on the second column body (52); the end face of the second column body (52) is provided with a plurality of inserted rods (521) which are distributed around the axis of the second column body (52) at equal intervals, and the end face of the first column body (51) is provided with a plurality of insertion holes (511) for the inserted rods (521) to insert.

5. The special high-precision drilling machine for conical-surface workpieces as claimed in any one of claims 1 to 3, wherein: a turntable (4) is rotatably arranged on the workbench (3), and the positioning column (5) is fixed on the turntable (4); a plurality of positioning columns (5) are arranged and distributed at equal intervals along the circumferential direction of the turntable (4), and a clamping block (6) is arranged at the end part of each positioning column (5); and a fixing mechanism for fixing the position of the turntable (4) is arranged on the workbench (3).

6. The special high-precision drilling machine for conical-surface workpieces as claimed in claim 5, wherein the special high-precision drilling machine comprises: the fixing mechanism comprises a movably arranged positioning block (32) and a push-pull component (31) used for generating push-pull power to drive the positioning block (32) to move along the radial direction of the rotary table (4), and a plurality of positioning grooves (41) for clamping and embedding the positioning block (32) are formed in the periphery of the rotary table (4) at equal intervals.

7. The special high-precision drilling machine for conical-surface workpieces as claimed in claim 6, wherein the special high-precision drilling machine comprises: the push-pull component (31) is a pneumatic cylinder or a hydraulic cylinder arranged on the workbench (3).

8. The special high-precision drilling machine for conical-surface workpieces as claimed in claim 5, wherein the special high-precision drilling machine comprises: and one end of the positioning column (5), which is far away from the clamping block (6), is provided with a base plate (8), and the base plate (8) is connected with the turntable (4) through a bolt.