CN210967058U - Accurate positioning mechanism for drill bit - Google Patents
Accurate positioning mechanism for drill bit Download PDFInfo
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- CN210967058U CN210967058U CN201921698066.7U CN201921698066U CN210967058U CN 210967058 U CN210967058 U CN 210967058U CN 201921698066 U CN201921698066 U CN 201921698066U CN 210967058 U CN210967058 U CN 210967058U
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Abstract
The utility model discloses a drill bit accurate positioning mechanism, establish the electro-magnet subassembly outside the drill bit including the cover, electro-magnet subassembly and drill bit sliding connection, electro-magnet subassembly is hollow circular cylinder shape and forms by the concatenation of polylith electro-magnet, all be equipped with multistage cylinder between electro-magnet and the main shaft so that the electro-magnet slides at multistage cylinder's drive relative drill bit down, adjacent connect through coupling assembling between the electro-magnet to can not produce between the electro-magnet and connect the dislocation when making adjacent electro-magnet separation and reconnecting together under magnetic force. Has the advantages that: the circular runout can be reduced, the abrasion of the joint part of the electromagnet assembly and the drill bit can be reduced, and the service life of the electromagnet assembly is prolonged.
Description
Technical Field
The utility model belongs to the technical field of the mould steel processing technique and specifically relates to a drill bit accurate positioning mechanism is related to.
Background
Radial drills may also be referred to as cross arm drills. The radial drilling machine mainly comprises a base, an inner upright post, an outer upright post, a rocker arm, a spindle box, a workbench and the like. The main spindle box is a composite component and consists of a main transmission motor, a main spindle and main spindle transmission mechanism, a feeding and speed changing mechanism, an operating mechanism of a machine tool and the like. The main spindle box is arranged on a horizontal guide rail of the rocker arm and can be operated by a hand wheel to move along the rocker arm on the horizontal guide rail.
When machining, the main spindle box is fastened on the rocker guide rail by a special clamping device, the outer upright post is fastened on the inner upright post, the rocker is fastened on the outer upright post, and then drilling machining is carried out. During drilling, a drill bit arranged on a main shaft performs rotary cutting and longitudinal feeding at the same time, and the motion mode is as follows:
1. the main motion of the radial drilling machine is the rotation motion of the main shaft;
2. the feeding motion is longitudinal feeding of the main shaft;
3. the auxiliary exercise comprises the following steps: the rocker arm vertically moves along the outer upright post, the spindle box moves along the length direction of the rocker arm, and the rocker arm and the outer upright post rotate around the inner upright post together.
In the process of drilling the die steel, the hardness of the die steel is high, the main shaft is easy to generate circular runout, the accuracy of the drilled hole is low, the deviation is large, and burrs are more, so that the main shaft needs to be positioned by the positioning sleeve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can slow down circular drill bit accurate positioning mechanism who beats of drill bit.
In order to achieve the above purpose, the utility model adopts the following technical scheme: drill bit accurate positioning mechanism establishes the electro-magnet subassembly outside the drill bit including the cover, electro-magnet subassembly and drill bit sliding connection, electro-magnet subassembly is hollow circular cylinder shape and forms by the concatenation of polylith electro-magnet, all be equipped with multistage cylinder between electro-magnet and the main shaft so that the electro-magnet slides at multistage cylinder's drive relative drill bit, and is adjacent connect through coupling assembling between the electro-magnet to can not produce between the electro-magnet and connect the dislocation when making adjacent electro-magnet separation and reconnecting together under the magnetic force effect.
In the drilling process, the hollow cylinder formed by the magnetic connection of the electromagnets is used for positioning the drill bit, so that the circular runout of the drill bit is reduced; when the instant acting force generated by circular jumping is greater than the magnetic force between the electromagnets, the electromagnets are separated from each other, and then the adjacent electromagnets are reconnected together under the guide of the connecting assembly due to the action of the magnetic force, so that the circular jumping of the drill bit is reduced, and the drilling accuracy is improved.
As a further improvement, coupling assembling is including locating "T" type spout in the electro-magnet, and is adjacent "T" type spout notch sets up relatively, "T" type spout in equal sliding connection have the slider, the notch that slider perpendicular to sliding direction ascending length is longer than "T" type spout prevents slider roll-off "T" type spout, and is adjacent be connected with the slide bar between the slider in "T" type spout, the slide bar is on a parallel with electro-magnet diameter direction. When the instantaneous acting force generated by circular jumping is larger than the magnetic force between the electromagnets, the sliding block and the T-shaped sliding groove slide relative to the electromagnets to be separated from each other; when the acting force generated by the circular jumping is smaller than the magnetic force between the electromagnets, the electromagnets separated from each other are reconnected together along the sliding direction of the sliding block under the action of the magnetic force. The arrangement of the structure can not only reduce circular bounce, but also reduce the abrasion of the electromagnet assembly and the drill bit fitting part, and prolong the service life of the electromagnet assembly.
As a further improvement, the slide bar is a telescopic bar. The arrangement of the telescopic rod can realize that the separable distance between the adjacent electromagnets can be prolonged on the premise that the length of the T-shaped sliding groove is not changed.
As a further improvement of the utility model, the slide bar is connected with the T-shaped chute notch in a sliding way.
As a further improvement of the utility model, the slider and the slide bar are integrally formed.
As a further improvement, the coupling assembling is including locating the fixed slot in the electro-magnet, and is adjacent the fixed slot notch sets up relatively, and is adjacent be connected with the elastic component between the fixed slot tank bottom, when adjacent electro-magnet contact is connected the elastic component is in natural state or by tensile state. When the instant acting force generated by circular jumping is larger than the magnetic force between the electromagnets, the elastic pieces are stretched to separate the electromagnets; when the acting force generated by the circular jumping is smaller than the magnetic force between the electromagnets, the electromagnets separated from each other are connected together again along the deformation direction of the elastic member under the action of the magnetic force. The arrangement of the structure can not only reduce circular bounce, but also reduce the abrasion of the electromagnet assembly and the drill bit fitting part, and prolong the service life of the electromagnet assembly.
As a further improvement of the utility model, the elastic part is a spring.
As a further improvement, the elastic member is provided with a telescopic sleeve, and the telescopic sleeve is fixed at the bottoms of the two adjacent fixing grooves. The telescopic arrangement can prevent dust accumulation on the elastic element.
As a further improvement of the utility model, the telescopic sleeve is made of hard material. The arrangement of the telescopic sleeve ensures that the elastic part moves in the diameter direction parallel to the electromagnet assembly, and prevents the electromagnet from generating connection dislocation when being connected together again under the action of magnetic force.
As a further improvement of the utility model, the telescopic sleeve is made of ceramic. The ceramic material is hard, the surface is smooth, and the friction force is small.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the drilling process, the hollow cylinder formed by the magnetic connection of the electromagnets is used for positioning the drill bit, so that the circular runout of the drill bit is reduced; when the instantaneous acting force generated by circular jumping is greater than the magnetic force between the electromagnets, the electromagnets are separated from each other, and then the adjacent electromagnets are connected together again under the guide of the connecting assembly due to the action of the magnetic force, so that the circular jumping of the drill bit is reduced, and the drilling accuracy is improved;
2. the arrangement of the structures of the electromagnet assembly and the connecting assembly can reduce circular bounce, reduce abrasion of the electromagnet assembly and a drill bit attaching part and prolong the service life of the electromagnet assembly.
Drawings
FIG. 1 is a perspective view of the device of the present invention disposed on a spindle and a drill;
fig. 2 is a cross-sectional view of the device of the present invention disposed on the main shaft and the drill bit.
The reference numerals are explained below: 1. a main shaft; 2. an electromagnet; 3. a multi-stage cylinder; 4. a drill bit; 5. a connecting assembly; 51. a T-shaped chute; 52. a slider; 53. a slide bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that as used in the following description, the terms "front," "back," "left," "right," "upper," and "lower" refer to directions in the drawings, and the terms "bottom" and "top," "inner," and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example 1:
as shown in fig. 1, accurate positioning mechanism of drill bit, establish 2 subassemblies of electro-magnet outside drill bit 4 including the cover, 2 subassemblies of electro-magnet and 4 sliding connection of drill bit, 2 subassemblies of electro-magnet are hollow circular cylinder shape and are formed by 2 concatenations of polylith electro-magnet, all be equipped with multistage cylinder 3 between electro-magnet 2 and the main shaft 1 so that electro-magnet 2 slides at the relative drill bit 4 of the drive of multistage cylinder 3, connect through coupling assembling 5 between the adjacent electro-magnet 2, so that can not produce between the electro-magnet 2 and connect the dislocation when making adjacent electro-magnet 2 separate and reconnecting together under the magnetic force effect.
As shown in fig. 2, the connecting assembly 5 includes "T" type sliding grooves 51 disposed in the electromagnet 2, notches of the adjacent "T" type sliding grooves 51 are disposed oppositely, sliding blocks 52 are slidably connected in the "T" type sliding grooves 51, a length of the sliding block 52 perpendicular to the sliding direction is longer than that of the notch of the "T" type sliding groove 51 to prevent the sliding block 52 from sliding out of the "T" type sliding groove 51, sliding rods 53 are connected between the sliding blocks 52 in the adjacent "T" type sliding grooves 51, and the sliding blocks 52 and the sliding rods 53 are integrally formed. The sliding rod 53 is a telescopic rod, and the sliding rod 53 is parallel to the diameter direction of the electromagnet 2. The sliding rod 53 is connected with the notch of the T-shaped sliding groove 51 in a sliding way.
The working principle is as follows: in the drilling process, the hollow cylinder formed by the magnetic connection of the electromagnets 2 positions the drill bit 4, so that the circular runout of the drill bit 4 is reduced; when the instant acting force generated by circular jumping is greater than the magnetic force between the electromagnets 2, the electromagnets 2 are separated from each other, and then the adjacent electromagnets 2 are reconnected together under the guide of the connecting assembly 5 due to the action of the magnetic force, so that the circular jumping of the drill bit 4 is reduced, and the accuracy of drilling is improved.
When the instant acting force generated by circular jumping is larger than the magnetic force between the electromagnets 2, the sliding block 52 and the T-shaped sliding groove 51 slide relative to the electromagnets 2 to be separated from each other; when the force generated by the circular run-out is smaller than the magnetic force between the electromagnets 2, the electromagnets 2 separated from each other are magnetically reconnected together in the sliding direction of the slider 52. The arrangement of the structure can not only reduce circular bounce, but also reduce the abrasion of the joint part of the electromagnet 2 component and the drill bit 4, and prolong the service life of the electromagnet 2 component.
Example 2:
the difference with embodiment 1 lies in that coupling assembling 5 includes the fixed slot of locating in electro-magnet 2, and adjacent fixed slot notch sets up relatively, is connected with the spring between the adjacent fixed slot tank bottom, and the spring is in natural state or by the tensile state when adjacent electro-magnet 2 contact is connected. The spring outer sleeve is provided with a telescopic sleeve, the telescopic sleeve is fixed at the bottoms of the two adjacent fixed groove grooves, and the telescopic sleeve is made of ceramics.
The working principle is as follows: when the instantaneous acting force generated by the circular jumping is larger than the magnetic force between the electromagnets 2, the springs are stretched to separate the electromagnets 2 from each other; when the acting force generated by the circular run-out is smaller than the magnetic force between the electromagnets 2, the electromagnets 2 separated from each other are reconnected together in the spring deformation direction under the action of the magnetic force. The arrangement of the structure can not only reduce circular bounce, but also reduce the abrasion of the joint part of the electromagnet 2 component and the drill bit 4, and prolong the service life of the electromagnet 2 component. The arrangement of the telescopic sleeve ensures that the elastic part moves in the diameter direction parallel to the electromagnet 2 assembly, and prevents the electromagnet 2 from generating connection dislocation when being connected together again under the action of magnetic force.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. Drill bit accurate positioning mechanism, its characterized in that establishes electro-magnet (2) subassembly outside drill bit (4) including the cover, electro-magnet (2) subassembly and drill bit (4) sliding connection, electro-magnet (2) subassembly is hollow circular cylinder shape and forms by polylith electro-magnet (2) concatenation, all be equipped with multistage cylinder (3) between electro-magnet (2) and main shaft (1) so that electro-magnet (2) slide relative drill bit (4) under the drive of multistage cylinder (3), and is adjacent connect through coupling assembling (5) between electro-magnet (2) to can not produce between electro-magnet (2) and connect the dislocation when making adjacent electro-magnet (2) separation and reconnecting together under the magnetic force effect.
2. The accurate drill positioning mechanism according to claim 1, characterized in that the connecting assembly (5) comprises a T-shaped sliding groove (51) arranged in the electromagnet (2), the notches of the adjacent T-shaped sliding grooves (51) are oppositely arranged, sliding blocks (52) are slidably connected in the T-shaped sliding grooves (51), the length of each sliding block (52) perpendicular to the sliding direction is longer than that of the notch of the T-shaped sliding groove (51) to prevent the sliding block (52) from sliding out of the T-shaped sliding groove (51), a sliding rod (53) is connected between the sliding blocks (52) in the adjacent T-shaped sliding grooves (51), and the sliding rod (53) is parallel to the diameter direction of the electromagnet (2).
3. The exact positioning mechanism of the drill bit according to claim 2, characterized in that the sliding rod (53) is a telescopic rod.
4. The exact positioning mechanism of the drill bit according to claim 2, characterized in that the slide bar (53) is slidably connected with the notch of the "T" shaped chute (51).
5. The exact positioning mechanism of the drill bit as claimed in claim 2, characterized in that the slide (52) is formed integrally with the slide (53).
6. The accurate drill positioning mechanism according to claim 1, characterized in that the connecting assembly (5) comprises fixing grooves arranged in the electromagnets (2), the notches of the fixing grooves are oppositely arranged, and an elastic member is connected between the bottoms of the adjacent fixing grooves, and the elastic member is in a natural state or a stretched state when the adjacent electromagnets (2) are in contact connection.
7. The drill bit accurate positioning mechanism according to claim 6, wherein the elastic member is a spring.
8. The accurate drill bit positioning mechanism according to claim 4, wherein the elastic member is externally sleeved with a telescopic sleeve, and the telescopic sleeve is fixed at the bottoms of two adjacent fixed groove bottoms.
9. The drill bit positive positioning mechanism of claim 8, wherein the telescoping sleeve is made of a hard material.
10. The drill bit positive positioning mechanism of claim 8, wherein the telescoping sleeve is made of ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921698066.7U CN210967058U (en) | 2019-10-11 | 2019-10-11 | Accurate positioning mechanism for drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921698066.7U CN210967058U (en) | 2019-10-11 | 2019-10-11 | Accurate positioning mechanism for drill bit |
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| Publication Number | Publication Date |
|---|---|
| CN210967058U true CN210967058U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921698066.7U Active CN210967058U (en) | 2019-10-11 | 2019-10-11 | Accurate positioning mechanism for drill bit |
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| CN (1) | CN210967058U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140243A (en) * | 2020-09-25 | 2020-12-29 | 李爱晓 | Magnetic attraction principle positioning plate punching equipment for office furniture |
| CN113600870A (en) * | 2021-09-06 | 2021-11-05 | 永康市晓诚电器有限公司 | Electric tool with protection device |
-
2019
- 2019-10-11 CN CN201921698066.7U patent/CN210967058U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112140243A (en) * | 2020-09-25 | 2020-12-29 | 李爱晓 | Magnetic attraction principle positioning plate punching equipment for office furniture |
| CN113600870A (en) * | 2021-09-06 | 2021-11-05 | 永康市晓诚电器有限公司 | Electric tool with protection device |
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