CN216504297U

CN216504297U - Vertical weight-reducing deep hole honing tool

Info

Publication number: CN216504297U
Application number: CN202122574692.9U
Authority: CN
Inventors: 李春平; 李巍
Original assignee: Zhengzhou Hongtuo Precision Tools Co ltd
Current assignee: Zhengzhou Hongtuo Precision Tools Co ltd
Priority date: 2021-10-26
Filing date: 2021-10-26
Publication date: 2022-05-13
Anticipated expiration: 2031-10-26

Abstract

The utility model relates to a vertical weight-reducing deep hole honing tool, which effectively solves the problem that the inner hole wall of a part is scratched because the existing honing tool cannot timely clean metal scraps generated in the honing process; the technical scheme of the solution comprises: according to the scheme, metal scraps generated in honing can be collected in real time and are separated from the surface of the inner hole wall or nearby, the probability that the inner hole wall of a part is scratched in the honing process is reduced, and through the through holes penetrating through the honing strips, the heat dissipation efficiency of the honing strips can be improved, so that heat generated in the honing process can be rapidly transferred to the outside.

Description

Vertical weight-reducing deep hole honing tool

Technical Field

The utility model belongs to the technical field of honing machine accessories, and particularly relates to a vertical weight-reducing deep hole honing tool.

Background

The honing process is to finish the workpiece by using the oilstone (also called honing strip) embedded on the honing head, the workpiece is arranged on the workbench of the honing machine or in the clamp, the honing head with a plurality of honing oilstones is inserted into the hole of the part to be processed and is driven by the main shaft of the machine tool to rotate, the honing oilstone is contacted with the inner hole wall of the part with certain pressure, and a layer of extremely thin metal can be cut off;

metal scraps generated in the process of honing the inner hole wall of the part are always positioned in the hole and are included between the inner hole wall and the honing strip if the metal scraps are not cleaned in time, and the inner hole wall of the part is scratched along with the honing process, so that the part is flawed, and the defective rate of the part is improved;

in view of the above, the present solution provides a vertical weight-reduction deep hole honing tool for solving the above problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides the vertical weight-reducing deep hole honing tool, which can collect metal scraps generated by honing in real time and enable the metal scraps to be separated from the surface of the inner hole wall or nearby, so that the probability of scratching the inner hole wall of a part in the honing process is reduced, and through arranging the through holes penetrating through the honing strips, the heat dissipation efficiency of the honing strips can be improved, so that heat generated in the honing process can be rapidly transferred to the outside.

The vertical weight-reducing deep hole honing tool comprises a honing head, wherein a plurality of bases are arranged in the honing head in a sliding manner along the radial direction of the honing head, and the tool is characterized in that a sand strip is arranged on each base, a slotted hole is formed in the sand strip and distributed along the length extension direction of the sand strip, the slotted holes penetrate through the upper side and the lower side of the sand strip, electromagnets matched with the slotted holes are arranged on the bases in a sliding manner, and a plurality of electromagnets are connected in a same voltage stabilizing loop in series;

the honing head is internally provided with a radial pushing mechanism matched with a plurality of bases, the electromagnet is provided with an inclined block matched with the radial pushing mechanism, and the radial pushing mechanism can drive the electromagnet to move relative to the bases through the inclined block.

Preferably, the base is provided with a rectangular hole matched with the electromagnet, the electromagnet is slidably mounted on the base through a U-shaped frame, an expansion spring is connected between the U-shaped frame and the base, and the inclined block is arranged on the U-shaped frame.

Preferably, the radial pushing mechanism comprises a bidirectional screw rod coaxially rotatably installed in the honing head, the upper end and the lower end of the bidirectional screw rod are respectively in threaded fit with a driving ring axially slidably installed in the honing head, the upper end and the lower end of the base are integrally provided with inclined plates corresponding to the driving ring, and the upper end and the lower end of the base are respectively matched with a fastening sleeve.

Preferably, the middle position of the bidirectional screw rod is in threaded fit with a pushing ring which is coaxially arranged with the honing head and axially and slidably mounted with the honing head.

Preferably, the sand strip is provided with a through hole penetrating through the slotted hole along the direction vertical to the slotted hole.

Preferably, a plurality of U-shaped rods are fixed on the driving ring above the driving ring at intervals in a surrounding mode, positioning holes matched with a cantilever of the U-shaped rods are formed in the lower end face of the inclined plates above the driving ring, and the pushing ring is located below the inclined blocks at a certain interval.

The technical scheme has the beneficial effects that:

(1) according to the scheme, metal scrap generated by honing can be collected in real time and is taken away from the surface of the inner hole wall or the vicinity of the inner hole wall, the probability that the inner hole wall of a part is scratched in the honing process is reduced, and the heat dissipation efficiency of the honing strip can be improved by arranging the through holes on the honing strip, so that heat generated in the honing process can be rapidly transferred to the outside;

(2) in this scheme, after the honing of accomplishing the part, can make a plurality of electro-magnets outwards remove and stretch out honing strip to the staff of being convenient for will adsorb the metal cost bits on the electro-magnet and clear up, simple, convenient among the whole cleaning process.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a plurality of sand bars extending out of the honing head according to the utility model;

fig. 3 is a schematic view of the internal structure of the present invention with the honing head removed;

fig. 4 is a sectional view of the honing head according to the present invention;

FIG. 5 is a schematic diagram of the relationship between the swash plate and the driving ring;

FIG. 6 is a cross-sectional view of a sand bar and base of the present invention;

FIG. 7 is a schematic view of the fitting relationship between the base and the emery stick of the present invention;

FIG. 8 is a schematic diagram of the utility model after the sand bar, the base and the electromagnet are separated.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be described in detail with reference to the accompanying drawings 1 to 8.

Embodiment 1, this embodiment provides a vertical weight-reduced deep hole honing tool, as shown in fig. 1 and 2, including a honing head 1, and a plurality of bases 2 slidably mounted in the honing head 1 along a radial direction thereof, and a emery stick 3 disposed on the base 2 (the honing stick can be welded or clamped to mount the emery stick 3 on the base 2 by other means commonly used by those skilled in the art), the improvement of this scheme lies in: as shown in fig. 2 and 8, slotted holes 4 are arranged on the sand strip 3 along the length direction thereof, and the slotted holes 4 penetrate through the upper side and the lower side of the sand strip 3, as shown in fig. 6, electromagnets 5 which are in sliding fit with the slotted holes 4 are slidably mounted on the base 2, and a plurality of electromagnets 5 on the base 2 are all connected in series in the same voltage stabilizing circuit (when a worker controls the voltage stabilizing circuit to be electrified, a plurality of electromagnets 5 generate electromagnetic force at the same time);

note: a layer of material which is magnetic conductive and can realize a certain sealing effect is covered outside the electromagnet 5, so that the sealing effect of the loop of the electromagnet 5 is realized, and a layer of sealing material is also required to be covered outside a lead in the voltage stabilizing loop, so that the voltage stabilizing loop can stably and reliably work (when honing work is started, a worker simultaneously controls the voltage stabilizing loop to be switched on, so that a plurality of electromagnets 5 are electrified to generate electromagnetic force);

as shown in fig. 5, a radial pushing mechanism is arranged in the honing head 1, and a worker can control the plurality of bases 2 to move (move outwards or inwards) along the radial direction of the honing head 1 through the radial pushing mechanism, so that the plurality of sand bars 3 arranged on the bases 2 are in contact with the inner hole wall of the part with a certain degree of pressure, and the honing process is completed;

as shown in figure 6, initially, the electromagnet 5 is in the slot 4 and does not extend out of the slot 4, when a worker adjusts a plurality of bases 2 and makes the sand strip 3 touch the inner wall of the part with a certain pressure, at this time, the inner wall of the part and the electromagnet 5 separate the slot 4 into a relatively closed space, along with the honing, the generated metal waste can be adsorbed by the electromagnet 5 in the slot 4 and adsorbed on one side wall of the electromagnet 5 facing the inner wall of the part, so that the slot 4 arranged along the length extension direction of the sand strip 3 is arranged on the sand strip 3, in order to make the metal waste can be adsorbed and collected by the electromagnet 5 in the slot 4 in time after the sand strip 3 along the width direction of the sand strip 3 and each time a narrower section of the inner wall of the part are honed, and avoid the sand strip 3 behind from honing the sand strip 3 from mixing with the waste generated after the sand strip 3 and the inner hole to hone again the inner wall of the part, thereby better avoiding the situation that the inner hole wall is scratched by the generated metal scrap;

the slotted holes 4 are formed in the sand strips 3, so that the using amount of the sand strips 3 is reduced (the honing effect is not influenced), when the sand strips 3 are honed, the inner hole wall is subjected to the extrusion force of one sand strip 3 and is dispersed on a plurality of cross sections through one cross section (the arrangement of the slotted holes 4 is equivalent to the fact that one side surface of the sand strip 3 facing the inner hole wall is divided into a plurality of independent areas), so that the radial force of the radial pushing mechanism acting on the base 2 is dispersed on more cross sections (the side surface of the complete sand strip 3 is abutted against the inner hole wall directly), the cylindricity of the inner hole of the honed cylinder hole is good, the multi-prismatic shape does not exist, and the honing effect is better;

after the completion is to the honing of part hole, the staff drives a plurality of bases 2 through radial pushing mechanism and resets, and cooperate with radial pushing mechanism through the sloping block 17 of locating on electro-magnet 5 afterwards, can realize driving electro-magnet 5 and produce for base 2 and remove and make electro-magnet 5 slide in tank hole 4, so that electro-magnet 5 outwards stretches out slotted hole 4, make electro-magnet 5 adsorb metal expense bits a lateral wall (promptly, electro-magnet 5 is towards interior pore wall one side) outwards stretching out slotted hole 4 at the honing in-process, staff control steady voltage return circuit loses the electricity this moment, and then make a plurality of electro-magnet 5 lose the electromagnetic force, the metal expense bits that adsorb on electro-magnet 5 this moment, alright get off by the comparatively easy clearance of staff.

Embodiment 2, on the basis of embodiment 1, as shown in fig. 8, a rectangular hole 6 matched with an electromagnet 5 is arranged on a base 2, the rectangular hole 6 penetrates through the base 2 and is communicated with a slotted hole 4 arranged on a sand bar 3, as shown in fig. 7, a plurality of electromagnets 5 on the same base 2 are connected through a U-shaped frame 7 and are slidably mounted on the base 2 (a slideway mechanism matched with a cantilever of the U-shaped frame 7 is arranged in the rectangular hole 6, and the structure of the slideway mechanism is not described in the prior art), and under the action of an expansion spring 8, the position relation of the electromagnets 5 relative to the base 2 is shown in fig. 6;

when the honing head 1 rotates in the inner hole of the part to hone, the electromagnet 5 can be subjected to a centrifugal force, but under the action of the telescopic spring 8, the electromagnets 5 can be kept and stably located at the current position, one side of the electromagnet 5 facing the inner hole wall cannot slide out of the slotted hole 4, the base 2 of the sand bar 3 is made of metal materials in a general mode, when honing work starts, workers can control the voltage stabilizing circuit to be powered on and enable the electromagnet 5 to generate electromagnetic force, the electromagnet 5 can be adsorbed in the rectangular hole 6 through the electromagnetic force at the moment, namely, the electromagnet 5 is under the action of the telescopic spring 8 and the electromagnetic force, and when the honing head 1 rotates in the hole, the electromagnet 5 cannot move relative to the base 2.

Embodiment 3, on the basis of embodiment 2, as shown in fig. 4, the radial pushing mechanism includes a bidirectional screw 9 coaxially rotatably installed in the honing head 1 (the upper and lower ends of the bidirectional screw 9 are respectively provided with reverse threads), and the upper and lower ends of the bidirectional screw 9 are respectively in threaded fit with a driving ring 10 axially slidably installed in the honing head 1, when the bidirectional screw 9 rotates, the driving rings 10 can be driven to synchronously move in the honing head 1 along mutually close or far reverse directions, as shown in fig. 3 and 4, the upper and lower ends of the base 2 are respectively and integrally provided with an inclined plate 11, the opposite sides of the inclined plates 11 at the upper end or the lower end are provided with arc-shaped grooves, the arc-shaped grooves on the upper inclined plates 11 and the arc-shaped grooves on the lower inclined plates 11 are respectively fitted with fastening sleeves 12 (which may be elastic rings and have certain elastic force), the fastening sleeve 12 achieves the effect of limiting the plurality of bases 2;

when the bases 2 need to be radially outwards fixed along the honing head 1, a worker only needs to control the bidirectional screw 9 to rotate (manual screwing can be performed or the bidirectional screw can be driven to rotate by a motor), so that the two driving rings 10 can be synchronously driven to move towards the mutually approaching direction (the driving ring 10 positioned above moves downwards, and the driving ring 10 positioned below moves upwards), and the effect of radially outwards moving the bases 2 along the honing head 1 is realized by matching with the inclined plates 11, namely, the device is switched from the state shown in the attached drawing 1 to the state shown in the attached drawing 2 (at this time, the fastening sleeve 12 is in the opening state), and then the honing of the inner holes of the parts can be started;

after the inner hole of the part is honed, the worker only needs to control the bidirectional screw 9 to rotate reversely, as shown in fig. 4, along with the reverse rotation of the bidirectional screw 9, the two driving rings 10 are driven to move in the direction away from each other, that is, no force is applied to the inclined plane of the inclined plate 11, at this time, under the action of the fastening sleeve 12, the bases 2 are synchronously driven to retract into the honing head 1 along the honing radial direction, and the homing of the bases 2 is completed.

Embodiment 4, on the basis of embodiment 3, as shown in fig. 4, a push ring 13 coaxially disposed with the honing head 1 and axially slidably mounted with the honing head is screw-fitted at the middle position of the bidirectional screw (a plurality of rods (disposed at the gap between two adjacent bases 2) for axially sliding the honing head 1 are disposed on the outer circumferential surface of the push ring 13, and the rods are vertically slidably fitted to the inner wall of the honing head 1 without affecting the radial movement of the bases 2 along the honing head 1);

initially, the push ring 13 is located below the plurality of inclined blocks 17, when the plurality of bases 2 move radially outward along the honing head 1, the inclined blocks 17 arranged on the U-shaped frame 7 also move outward, and it is set that when the bidirectional screw 9 is screwed to rotate and the plurality of bases 2 move outward, the bidirectional screw 9 synchronously drives the push ring 13 in threaded fit therewith to move downward (the movement of the push ring 13 is complementarily interfered with the movement of the bases 2);

when honing of parts is completed and the bases 2 are reset, the positional relationship between the push ring 13 and the inclined blocks 17 is as shown in the attached drawing 3 again, and then the worker continues to rotate the bidirectional screw 9 in the reverse direction, and then the push ring 13 is driven to move upwards from the position in the attached drawing 3, and the U-shaped frames 7 are driven to move relative to the bases 2 along with the matching of the push ring 13 and the inclined blocks 17, namely, the U-shaped frames 7 move outwards and the electromagnets 5 extend outwards along the slotted holes 4 (at the moment, one side wall of each electromagnet 5, which is adsorbed with metal scraps, extends outwards out of the slotted holes 4), and then the worker controls the voltage stabilizing circuit to lose power, so that the metal scraps adsorbed on the electromagnets 5 start to fall off, or the workers can quickly clean with the help of the workers;

after finishing cleaning the metal scraps, the worker controls the bidirectional screw 9 to rotate reversely, so that the U-shaped frame 7 and the pushing ring 13 are returned to the initial positions as shown in fig. 3.

Embodiment 5, on the basis of embodiment 1, as shown in fig. 8, through holes 14 penetrating through the slot holes 4 are formed in the emery stick 3 along a direction perpendicular to the slot holes 4, when the honing head 1 rotates in the inner hole of the part, airflow is generated and flows through the through holes 14, heat generated by honing and located inside the emery stick 3 can be better transferred to the outside, and the arrangement of the plurality of through holes 14 is equivalent to increase the contact area between the emery stick 3 and the outside air, so that better cooling and heat dissipation of the emery stick 3 are facilitated.

Embodiment 6 is based on embodiment 4, as shown in fig. 5, a plurality of U-shaped rods 15 are fixed on the driving ring 10 above at intervals, a positioning hole 16 matching with a cantilever of the U-shaped rod 15 is arranged on the lower end surface of a plurality of inclined plates 11 above, when the sand strip 3 is at the initial position (i.e. the state shown in fig. 1), a cantilever of the U-shaped rod 15 below the positioning hole 16 is just at the lower end surface of the positioning hole 16 (as shown in fig. 5, the upper end surface of a cantilever of the U-shaped rod 15 is just at the lower port position of the positioning hole 16 corresponding to the positioning hole), when the initial setting is made, a certain distance is left between the push ring 13 and a plurality of inclined blocks 17 (i.e. the push ring 13 is at a certain distance position below the plurality of inclined blocks 17), when the metal dust attached to the electromagnet 5 needs to be cleaned, the worker controls the bidirectional screw 9 to rotate, i.e., the two driving rings 10 are driven to move away from each other (at this time, the rotation direction of the bidirectional screw 9 can make the pushing ring 13 move from bottom to top in the honing head 1), the cantilevers of the U-shaped rods 15 are firstly inserted into the positioning holes 16 (at this time, the positioning of the bases 2 along the honing radial direction is realized), then, the upper end surfaces of the pushing rings 13 abut against the inclined surfaces of the inclined blocks 17, the cantilevers of the U-shaped rods 15 are further inserted into the positioning holes 16 along with the continuous rotation of the bidirectional screw 9, and the U-shaped rods 15 are forced to move relative to the bases 2 under the cooperation of the pushing rings 13 and the inclined blocks 17 (namely, the U-shaped rods 15 are moved outwards along the radial direction, so that the electromagnets 5 fixedly installed on the U-shaped rods 15 extend out of the slotted holes 4);

at the moment, because the plurality of bases 2 are positioned in the radial direction of the honing head 1, the base 2 cannot move due to the fact that extrusion force is generated under the matching of the push ring 13 and the inclined block 17 in time, when the electromagnet 5 extends out of the slotted hole 4, a worker controls the voltage stabilizing loop to lose power and then the electromagnet 5 loses electromagnetic force, and metal waste scraps attached above the electromagnet can be cleaned;

as shown in fig. 8, the holes on the base 2 and the emery stick 3 in this embodiment also indirectly reduce the overall weight of the honing head 1, so that the honing head 1 is lighter in weight (easy to control), and has better precision in performing honing work.

The above description is only for the purpose of illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims

1. The vertical weight-reducing deep hole honing tool comprises a honing head (1), wherein a plurality of bases (2) are arranged in the honing head (1) in a sliding manner along the radial direction of the honing head, and the tool is characterized in that a sand bar (3) is arranged on each base (2), slotted holes (4) are arranged on the sand bar (3) along the length extension direction of the sand bar, the slotted holes (4) penetrate through the upper side and the lower side of the sand bar (3), electromagnets (5) matched with the slotted holes (4) are arranged on the bases (2) in a sliding manner, and the electromagnets (5) are connected in the same voltage stabilizing loop in series;

the honing head (1) is internally provided with a radial pushing mechanism matched with the plurality of bases (2), the electromagnet (5) is provided with an inclined block (17) matched with the radial pushing mechanism, and the radial pushing device can drive the electromagnet (5) to move relative to the bases (2) through the inclined block (17).

2. The vertical weight-reducing deep hole honing tool according to claim 1, wherein the base (2) is provided with a rectangular hole (6) matched with the electromagnet (5), the electromagnet (5) is slidably mounted on the base (2) through a U-shaped frame (7), a telescopic spring (8) is connected between the U-shaped frame (7) and the base (2), and the oblique block (17) is arranged on the U-shaped frame (7).

3. The vertical weight-reducing deep hole honing tool according to claim 2, wherein the radial pushing mechanism comprises a bidirectional screw (9) coaxially rotatably mounted in the honing head (1), the upper and lower ends of the bidirectional screw (9) are respectively in threaded fit with a driving ring (10) axially slidably mounted in the honing head (1), the upper and lower ends of the base (2) are integrally provided with inclined plates (11) corresponding to the driving ring (10), and the upper and lower ends of a plurality of bases (2) are respectively in fit with a fastening sleeve (12).

4. A vertical weight-reducing deep-hole honing tool according to claim 3, wherein the bidirectional screw is screw-fitted at an intermediate position with a push ring (13) coaxially disposed with the honing head (1) and axially slidably mounted therewith.

5. The vertical weight-reducing deep hole honing tool according to claim 1, wherein the emery stick (3) is provided with through holes (14) penetrating through the slotted holes (4) in a direction perpendicular to the slotted holes (4).

6. The vertical weight-reducing deep hole honing tool according to claim 4, wherein a plurality of U-shaped rods (15) are fixed on the upper driving ring (10) at intervals, positioning holes (16) matched with a cantilever of the U-shaped rods (15) are formed in the lower end faces of a plurality of inclined plates (11) which are arranged above, and the pushing ring (13) is arranged below a plurality of inclined blocks (17) at a certain interval.