CN220296030U

CN220296030U - Deburring instrument

Info

Publication number: CN220296030U
Application number: CN202321540103.8U
Authority: CN
Inventors: 石义勇
Original assignee: Zhuhai Sanrui Precision Technology Co ltd
Current assignee: Zhuhai Sanrui Precision Technology Co ltd
Priority date: 2023-06-15
Filing date: 2023-06-15
Publication date: 2024-01-05
Anticipated expiration: 2033-06-15

Abstract

The utility model provides a deburring tool which comprises an operation part, a tool body and at least two tool bits, wherein the tool body is provided with a preset length and comprises at least two elastic blocks, the two elastic blocks are oppositely connected to one end of the operation part, a gap is formed between the two elastic blocks, the free end of each elastic block is connected with a tool bit, and the elastic blocks can drive the tool bit to move relatively close to or far away from; each cutter head is provided with at least two protruding parts, the two protruding parts are arranged along the circumferential direction of the cutter head, chip hiding grooves are formed between two adjacent protruding parts, the protruding parts are provided with blade parts, and the protruding parts, the chip hiding grooves and the blade parts extend along the axial direction of the deburring tool; the utility model can extend into the deep hole and rotate so as to remove burrs on the wall of the deep hole, and has the advantages of simple structure and convenient operation.

Description

Deburring instrument

Technical Field

The utility model relates to the field of machining tools, in particular to a deburring tool.

Background

The new energy motor housing is generally formed by die casting, and is provided with a deep hole, such as a water tap, etc. The inner wall of the tap generally needs to be deburred after die casting is completed. Because the depth of the water nozzle is deeper, the burrs on the inner wall of the water nozzle are difficult to remove by adopting a common cutter, and if the burrs are not removed in place, the product quality is greatly influenced.

Disclosure of Invention

The utility model aims to provide a deburring tool which can extend into a deep hole and rotate so as to deburr the wall of the deep hole.

In order to achieve the above-mentioned purpose, the deburring tool provided by the utility model comprises a control part, a tool body and at least two tool bits, wherein the tool body has a preset length, the tool body comprises at least two elastic blocks, the two elastic blocks are oppositely connected to one end of the control part, a gap is formed between the two elastic blocks, the free end of each elastic block is connected with a tool bit, and the elastic blocks can drive the tool bit to move relatively close to or far away from; the tool bit is provided with at least two protruding portions, the two protruding portions are arranged along the circumferential direction of the tool bit, chip hiding grooves are formed between two adjacent protruding portions, cutting edge portions are arranged on the protruding portions, and the protruding portions, the chip hiding grooves and the cutting edge portions extend along the axial direction of the deburring tool.

According to the technical scheme, the cutter body comprising the elastic block is arranged, so that the cutter heads can move along with the elastic block in an elastic way, a user can manually control the two cutter heads to be relatively close to and stretch into a deep hole with a smaller diameter, and the two cutter heads are elastically restored in the deep hole so as to ensure that the cutter edge part is abutted with the inner wall of the deep hole, or the cutter heads can stretch into the deep hole with a larger diameter through CNC equipment, and when the cutter heads rotate at a high speed, the cutter heads are relatively far away under the action of centrifugal force, so that the cutter edge part is abutted with the inner wall of the deep hole, and the deep hole deburring operation is realized; through setting up the axial extension that protruding portion and cutting edge portion all follow the burring instrument, be favorable to increasing its cutting area on the one hand, improve work efficiency, on the other hand can avoid the burring instrument to incline in the deep hole and set up, avoid influencing the roughness of deep hole inner wall.

The utility model also has the advantages of simple structure and convenient operation.

Further, the extending direction of the blade portion is parallel to the axial direction of the deburring tool.

According to the scheme, the extending direction of the blade part is further limited to be parallel to the axial direction of the deburring tool, and the blade part extends obliquely along the axial direction, so that the whole length of the blade part can be ensured to be in contact with the hole wall, and the cutting area of the deburring tool is increased.

The further scheme is that two blade parts are arranged on the protruding part and are respectively arranged on two sides of the protruding part.

According to the scheme, the cutting edge parts are arranged on the two sides of the protruding part, so that the deburring tool can perform deburring operation whether in forward rotation or reverse rotation.

The surface of the protruding portion is set to be an arc surface, the surfaces of the protruding portions on all cutter heads are arranged along the circumferential direction of the cutter head to form a cylindrical surface, the diameter of the cylindrical surface is adjustable, a notch is arranged between two adjacent protruding portions of the cylindrical surface, and the notch is correspondingly arranged and communicated with the chip hiding groove.

According to the scheme, the cylindrical surface is arranged, and after the tool bit stretches into the deep hole, the cylindrical surface is abutted with the inner wall of the deep hole, so that the deburring tool is prevented from deflecting in the deep hole.

Further, in the radial direction of the deburring tool, the minimum diameter of the cylindrical surface is larger than the outer diameter of the cutter body.

According to the scheme, the diameter of the cylindrical surface is larger than the outer diameter of the cutter body, so that the cutter body is prevented from being contacted with the hole wall.

The further proposal is that the cutter head is made of high-speed steel, and the cutter body is made of tool steel.

Further, the control part is arranged as a holding part, an anti-slip layer is arranged on the holding part, the cutter body comprises two elastic blocks, and the outer diameter of the cutter body gradually decreases from one end close to the control part to the other end.

According to the scheme, the holding part is arranged, the anti-slip layer is arranged on the holding part, and a user can hold the deburring tool conveniently.

The further scheme is that the control part is arranged as the installation part, the cutter body comprises four elastic blocks, and the four elastic blocks are arranged at one end of the installation part in a shape like a Chinese character 'tian'.

According to the scheme, the installation part is arranged, so that the deburring tool can be installed on CNC equipment to perform automatic deburring operation.

Drawings

Fig. 1 is a block diagram of a first embodiment of the deburring tool of the present utility model.

Fig. 2 is an enlarged view of a portion of a first embodiment of the deburring tool of the present utility model.

Fig. 3 is a side view of a first embodiment of the deburring tool of the present utility model.

Fig. 4 is a block diagram of a second embodiment of the deburring tool of the present utility model.

The utility model is further described below with reference to the drawings and examples.

Detailed Description

First embodiment of deburring tool:

referring to fig. 1 to 3, the present embodiment provides a deburring tool for a manual deburring operation.

The deburring tool of this embodiment includes a manipulation section, a blade body, and two bits 3. The cutter body is of an elongated structure and has a longer preset length, the cutter body comprises two elastic blocks 2, the two elastic blocks 2 are oppositely connected to one end of the control part, a gap 4 is formed between the two elastic blocks 2, and the free ends of the elastic blocks 2 can elastically move around the connecting ends of the elastic blocks 2. The number of the cutter heads 3 is equal to that of the elastic blocks 2, the free end of each elastic block 2 is connected with the cutter head 3, the elastic block 2 can drive the cutter heads 3 to elastically and relatively move along the width direction of the gap 4, and the two cutter heads 3 of the embodiment mainly relatively approach or relatively separate from each other.

Each cutter head 3 is provided with at least two protruding portions 31, in this embodiment, four protruding portions 31 are used as an example for illustration, the four protruding portions 31 are arranged along the circumferential direction of the cutter head 3, and chip hiding grooves 32 are formed between two adjacent protruding portions 31. Specifically, the respective projections 31 on the two cutter heads 3 are symmetrically arranged with respect to the center line of the space 4. The protruding portion 31 is provided with a blade portion 311, and the protruding portion 31, the chip pocket 32, and the blade portion 311 are all extended in the axial direction of the deburring tool, preferably, the extending direction of the blade portion 311 is parallel to the axial direction of the deburring tool. When the tool bit 3 extends into the deep hole, the surface of the protruding portion 31 abuts against the wall of the deep hole, so that the tool bit 3 is prevented from being skewed, and the whole length of the blade portion 311 is ensured to perform deburring operation.

In this embodiment, two blade portions 311 are disposed on each protruding portion 31, the two blade portions 311 are disposed on two sides of the protruding portion 31, and the blade portions 311 are disposed at edges between the surface of the protruding portion 31 and the chip-hiding groove 32. The deburring tool can perform deburring operation no matter forward or backward, and has the advantages of convenience and practicability.

The surfaces of the protruding parts 31 are arc surfaces, the surfaces of the eight protruding parts 31 on the two tool bits 3 are arranged along the circumferential direction of the tool bits 3 to form a cylindrical surface, and the diameter of the cylindrical surface is adjustable. In the radial direction of the deburring tool, the smallest diameter of the cylindrical surface is larger than the outer diameter of the blade body. The cylindrical surface is provided with a notch between the two protruding portions 31, the notch is correspondingly arranged and communicated with the chip hiding groove 32, so that scraps can fall off from the chip hiding groove 32 in the deburring process, and accumulation on the cutting edge portion 311 is avoided.

The tool bit 3 is made of high-speed steel, the tool body is made of tool steel, and the tool bit 3 and the tool body are fixed through welding.

In this embodiment, the control portion is set to the hand grip portion 1, the hand grip portion 1 is provided with an anti-slip layer, the whole hand grip portion 1 is wrapped by the anti-slip layer, the anti-slip layer can be made of materials such as rubber, plastic, silica gel, etc., and the preferred rubber of this embodiment. The external diameter of the cutter body gradually decreases from one end close to the hand holding part 1 to the other end, so that the elastic deformation of the elastic block 2 close to one end of the cutter head 3 can be improved, and the strength of the elastic block 2 close to one end of the hand holding part 1 can be ensured.

Before extending into the deep hole, a user manually extrudes the two elastic blocks 2, so that the two cutter head 3 parts are relatively close to each other, and the diameter of the cylindrical surface is smaller than the inner diameter of the deep hole; then the tool bit is stretched into the deep hole, and the axial parallelism between the 3 part of the tool bit and the deep hole is kept as much as possible in the stretching process; after the tool is inserted into the deep hole, the two elastic blocks 2 are manually released, so that the tool bit 3 is relatively far away, the surface of the protruding part 31 is abutted against the inner wall of the deep hole, and at the moment, under the action of the inner wall of the deep hole, the deburring tool can be automatically guided, and the deburring tool is axially parallel to the deep hole; then, the deburring tool is manually rotated to perform deburring operation, and at the moment, the deburring tool can be manually controlled to move up and down, so that deburring operation is conveniently performed on the whole hole wall of the deep hole.

Second embodiment of deburring tool:

referring to fig. 4, on the basis of the first embodiment of the deburring tool described above, the deburring tool of this embodiment can be mounted to a CNC machine for automated operation. Specifically: the control portion of this embodiment is established to installation department 5, and installation department 5 is the cylinder, and installation department 5 is used for being connected with the installation gripping head of CNC lathe, is provided with annular flange 51 between installation department 5 and the blade, and annular flange 51 is protruding in the perisporium of installation department 5 to the degree of depth of restriction installation department 5 installation to the CNC lathe.

The cutter body of the embodiment is of an elongated structure and has a longer preset length, and the outer diameters of the two ends of the cutter body are equal. The cutter body comprises four elastic blocks 6, the four elastic blocks 6 are arranged in a 'field' -shaped manner, and a cross-shaped gap 7 is formed between the four elastic blocks 6, so that each elastic block 6 can move outwards or inwards elastically. The free end of each elastic block 6 is provided with a cutter head 8, two protruding parts 81 are arranged on the cutter head 8, a chip hiding groove 82 is formed between the two protruding parts 81, the surfaces of the protruding parts 81 are arc surfaces, and the surfaces of the eight protruding parts 81 form a cylindrical surface. Each of the convex portions 81 is provided with a blade portion 811 on both left and right sides thereof, and the convex portions 81 and the blade portion 811 each extend in the axial direction of the deburring tool.

The deburring tool of the embodiment stretches into the deep hole under the drive of the CNC machine tool, and at the moment, the diameter of the cylindrical surface is smaller than the inner diameter of the deep hole; then, the tool bits 8 are rotated at a high speed by the rotational drive of the CNC machine, and the respective tool bits 8 are moved outwardly, i.e., relatively away from each other by the centrifugal force of the high-speed rotation, so that the blade portions 811 abut against the inner walls of the deep holes and remove burrs on the inner walls of the deep holes.

The present embodiment provides four elastic blocks 6, and compared with the above embodiment, the width of the elastic blocks 6 can be reduced, so as to reduce the resistance of the elastic blocks 6 during elastic movement, and ensure that the elastic blocks can move outwards under the action of centrifugal force during high-speed rotation.

In summary, according to the utility model, the cutter body comprising the elastic block is arranged, so that the cutter head can elastically move along with the elastic block, a user can manually extend the cutter head into a deep hole with a smaller diameter so as to ensure that the cutter blade part is abutted with the inner wall of the deep hole, or the cutter head can be extended into the deep hole with a larger diameter through CNC equipment, and when the cutter head rotates at a high speed, the cutter head expands outwards under the action of centrifugal force so as to enable the cutter blade part to be abutted with the inner wall of the deep hole, so that the deep hole deburring operation is realized; through setting up the axial extension of cutting edge portion all along deburring instrument, be favorable to increasing its cutting area on the one hand, improve work efficiency, on the other hand can avoid deburring instrument to incline in the deep hole and set up, avoid influencing the roughness of deep hole inner wall.

Finally, it should be emphasized that the foregoing is merely a preferred embodiment of the present utility model, and is not intended to limit the utility model, but rather that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any modifications, equivalent substitutions, improvements, etc. are intended to be included within the scope of the present utility model.

Claims

1. A deburring tool, characterized in that: the cutter body has a preset length, the cutter body comprises at least two elastic blocks, the two elastic blocks are oppositely connected to one end of the control part, a gap is formed between the two elastic blocks, the free end of each elastic block is connected with the cutter head, and the elastic blocks can drive the cutter heads to move relatively close to or far away from each other;

the deburring tool comprises a deburring tool body, and is characterized in that at least two protruding portions are arranged on the tool head, two protruding portions are arranged along the circumferential direction of the tool head, a chip hiding groove is formed between two adjacent protruding portions, a cutting edge portion is arranged on each protruding portion, and the protruding portions, the chip hiding groove and the cutting edge portion extend along the axial direction of the deburring tool.

2. The deburring tool as set forth in claim 1, wherein:

the extending direction of the blade portion is parallel to the axial direction of the deburring tool.

3. The deburring tool as set forth in claim 1, wherein:

the two blade parts are arranged on the protruding part, and the two blade parts are respectively arranged on two sides of the protruding part.

4. The deburring tool as set forth in claim 1, wherein:

the surface of the protruding portion is set to be an arc surface, the surfaces of a plurality of protruding portions on the cutter head are arranged along the circumferential direction of the cutter head to form a cylindrical surface, the diameter of the cylindrical surface is adjustable, a notch is arranged between two adjacent protruding portions of the cylindrical surface, and the notch is correspondingly arranged and communicated with the chip hiding groove.

5. The deburring tool of claim 4, wherein:

the minimum diameter of the cylindrical surface is larger than the outer diameter of the cutter body in the radial direction of the deburring tool.

6. The deburring tool as set forth in claim 1, wherein:

the tool bit is made of high-speed steel, and the tool body is made of tool steel.

7. The deburring tool of any of claims 1 to 6, wherein:

the control part is arranged to be a hand-held part, an anti-slip layer is arranged on the hand-held part, the cutter body comprises two elastic blocks, and the outer diameter of the cutter body gradually decreases from one end close to the control part to the other end.

8. The deburring tool of any of claims 1 to 6, wherein:

the control part is arranged to be an installation part, the cutter body comprises four elastic blocks, and the four elastic blocks are arranged at one end of the installation part in a field shape.