CN219130991U

CN219130991U - Reamer for machining

Info

Publication number: CN219130991U
Application number: CN202223466744.1U
Authority: CN
Inventors: 周四海; 彭飞; 张洪林
Original assignee: Guangdong Unt Hardware Technology Co ltd
Current assignee: Guangdong Unt Hardware Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-06-06
Anticipated expiration: 2032-12-22

Abstract

The application relates to the technical field of machining tools, and specifically discloses a reamer for machining, which is characterized in that: including the handle of a knife, the one end coaxial coupling of handle of a knife has the connecting rod, the connecting rod is provided with the cutting portion that is used for carrying out cutting operation and is used for carrying out the troweling portion of troweling operation, cutting portion set up in the connecting rod is kept away from the one end tip of handle of a knife, troweling portion set up in the connecting rod is kept away from the one end lateral wall of handle of a knife. The hole reaming or hole repairing device has the effect of being beneficial to improving the machining efficiency of reaming or hole repairing.

Description

Reamer for machining

Technical Field

The application relates to the technical field of machining tools, in particular to a reamer for machining.

Background

Reamers are rotary tools having one or more cutter teeth for removing a thin layer of metal from the surface of a machined hole, typically for reaming or hole repair.

In the related art, when a hole on a machined workpiece needs to be reamed or repaired, the hole wall on the workpiece needs to be cut off to be large in thickness or the inner wall of the hole is rough, and the current mode is to select a plurality of reamers with different precision to process the hole for a plurality of times, so that the quality of the hole is prevented from being influenced due to overlarge cutting amount of the reamer.

In view of the above related art, the inventors consider that the hole machining requires multiple times of machining using a plurality of reamers of different precision, which is inefficient.

Disclosure of Invention

In order to facilitate improving the machining efficiency of reaming or hole trimming, the application provides a reamer for machining.

The application provides a reamer for machining adopts following technical scheme:

the reamer for machining comprises a cutter handle, wherein a connecting rod is coaxially connected to one end of the cutter handle, a cutting part for cutting operation and a polishing part for polishing operation are arranged on the connecting rod, the cutting part is arranged at the end part of the connecting rod, which is far away from the cutter handle, and the polishing part is arranged at the side wall of one end of the connecting rod, which is far away from the cutter handle.

Through adopting above-mentioned technical scheme, when need carry out reaming or repair the hole operation to the hole on the processing work piece, the cutting part on the reamer carries out the cutting operation to the hole earlier to enlarge or repair the hole into required size, along with the reamer in the hole deepens, the portion of polishing is polished the hole again and is operated, need not to use the reamer of multiple different precision to carry out multiple processing to the hole, thereby is favorable to improving the machining efficiency of reaming or repairing the hole.

Preferably, the cutting part comprises a plurality of cutting edges, and the cutting edges are uniformly and alternately surrounded on the edge of the end face of the connecting rod.

Through adopting above-mentioned technical scheme, a plurality of cutting edge is driven under the rotation of connecting rod and is carried out cutting operation to the hole jointly, is favorable to improving cutting efficiency.

Preferably, the cutting edge is obliquely arranged, and an included angle of 45 degrees is formed between the cutting edge and the side wall of the connecting rod.

Through adopting above-mentioned technical scheme, this setting makes the cutting edge carry out the expansion or the operation of repairing from small to big to the hole, and the contained angle that cutting edge and connecting rod lateral wall formed sets up to 45, is favorable to keeping the roughness of pore wall when guaranteeing cutting efficiency.

Preferably, the trimming part comprises a plurality of trimming blades, each trimming blade is arranged along the length direction of the connecting rod, and the trimming blades are uniformly and alternately surrounded on the side wall of the connecting rod.

Through adopting above-mentioned technical scheme, after the cutting edge carries out cutting operation to the hole and accomplishes, along with the reamer in the hole deepens, the sleeking edge carries out the sleeking operation again to the hole that cutting operation accomplished, and a plurality of sleeking edge carries out the sleeking operation to the hole jointly, is favorable to improving the roughness of pore wall sleeking.

Preferably, the trimming blade is arranged in a curved spiral along the length direction of the connecting rod.

By adopting the technical scheme, the pressure intensity of the trimming blade on the hole wall is increased, so that the resistance of the trimming blade in the process of rotating and trimming is reduced.

Preferably, a chip groove is formed in the side wall of the connecting rod, and the chip groove is communicated with the cutting part and the polishing part.

By adopting the technical scheme, the chips generated by the cutting part and the polishing part can be discharged through the chip grooves, so that the influence of the chips on the cutting operation and the polishing operation is reduced.

Preferably, the number of the chip grooves is a plurality of, the chip grooves are evenly spaced around the side wall of the connecting rod, and each chip groove is located between two adjacent trimming blades.

Through adopting above-mentioned technical scheme, the quantity of junk groove sets up a plurality ofly, and every junk groove all is located between two adjacent sleeking edges and is favorable to improving piece exhaust efficiency.

Preferably, the diameter of the connecting rod is smaller than that of the cutter handle, and the distance from the trimming blade to the central axis of the connecting rod is larger than the radius of the connecting rod.

Through adopting above-mentioned technical scheme, this setting makes the connecting rod keep away the position in the course of the work of reamer, is favorable to preventing that the connecting rod from causing the interference in the processing hole.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through setting up cutting portion and coping portion on the connecting rod, when need carry out reaming or repair the hole operation to the hole on the processing work piece, the cutting portion on the reamer carries out cutting operation to the hole earlier to enlarge or repair the hole into required size, along with the reamer is in the hole deep into, the coping portion carries out the coping operation again to the hole, need not to use the reamer of multiple different precision to carry out processing many times to the hole to be favorable to improving reaming or repair the machining efficiency of hole.

2. Through being the slope setting with the cutting edge, along with the reamer in the hole deepen, the cutting operation of cutting edge makes the aperture increase gradually, and the contained angle that cutting edge and connecting rod lateral wall formed sets up to 45, is favorable to keeping the roughness of pore wall when guaranteeing cutting efficiency.

3. Through setting up the chip groove, and chip groove intercommunication cutting portion and troweling portion, the piece that cutting portion and troweling portion produced can be discharged through the chip groove to be favorable to reducing the influence of piece to cutting operation and troweling operation.

Drawings

Fig. 1 is a schematic view of the overall structure of a reamer in an embodiment of the present application.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Reference numerals illustrate:

1. a knife handle; 2. a connecting rod; 3. a cutting portion; 31. a cutting edge; 4. a polishing part; 41. a polishing blade; 5. chip removal groove.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-2.

The embodiment of the application discloses reamer for machining, refer to fig. 1, including handle of a knife 1, handle of a knife 1 is cylindric setting, and the one end coaxial coupling of handle of a knife 1 has a connecting rod 2, and connecting rod 2 is the setting of round bar form equally, and the diameter of connecting rod 2 is less than the diameter of handle of a knife 1. The connecting rod 2 is provided with a cutting portion 3 for performing a cutting operation and a smoothing portion 4 for performing a smoothing operation, the cutting portion 3 being provided at an end portion of the connecting rod 2 remote from the handle 1, and the smoothing portion 4 being provided at a side wall of the connecting rod 2 remote from the handle 1. When the reamer is used for hole processing operation, as the reamer is deeply inserted into the hole, the cutting part 3 firstly performs cutting operation on the hole wall to enlarge or trim the hole into a required hole diameter, and then the trimming part 4 performs trimming operation on the hole to improve the flatness of the hole wall.

Referring to fig. 1 and 2, the cutting part 3 includes a plurality of cutting edges 31, in this embodiment, the number of the cutting edges 31 is six, and the six cutting edges 31 uniformly and intermittently encircle the edge of the end surface of the connecting rod 2 far from the shank 1, so as to improve the cutting efficiency of the reamer. It should be noted that each cutting edge 31 is inclined, so that an included angle of 45 ° is formed between each cutting edge 31 and the side wall of the connecting rod 2, and the distance between the cutting edge 31 and the axis of the connecting rod 2 gradually increases toward the direction close to the tool handle 1.

Referring to fig. 1 and 2, the wiper portion 4 includes a plurality of wiper blades 41, each wiper blade 41 being disposed along the length direction of the connecting rod 2, and in this embodiment, the number of wiper blades 41 is also six, the six wiper blades 41 are uniformly spaced around the side wall of the connecting rod 2, and the six wiper blades 41 are aligned with the positions of the six cutting blades 31 one by one. It should be noted that, each wiper 41 is disposed in a curved spiral along the length direction of the connecting rod 2, so as to increase the pressure of the wiper 41 on the hole wall, thereby being beneficial to reducing the resistance of the wiper 41 when rotating to perform the polishing operation. Meanwhile, the distance from the trimming blade 41 to the central axis of the connecting rod 2 is larger than the radius of the connecting rod 2, so that the connecting rod 2 forms a avoidance position in the hole, and the interference of the connecting rod 2 to the hole wall in the rotating process of the reamer is avoided.

Referring to fig. 1 and 2, the side wall of the connecting rod 2 is provided with a chip groove 5, and the chip groove 5 communicates with the cutting part 3 and the smoothing part 4 to discharge chips generated by the cutting operation and the smoothing operation, thereby preventing the chips from interfering with the cutting operation and the smoothing operation. Specifically, the number of the chip grooves 5 is set to be plural, in this embodiment, the number of the chip grooves 5 is set to be six, the six chip grooves 5 are uniformly spaced around the side wall of the connecting rod 2, each chip groove 5 is located between two adjacent wiper blades 41, and each chip groove 5 is also located between two adjacent cutting blades 31, so as to improve chip removal efficiency. It should be noted that the chip groove 5 extends in a direction approaching the shank 1 after passing out of the wiper edge 41, so that the discharged chips are far away from the cutting edge 31 and the wiper edge 41.

The implementation principle of the reamer for machining is as follows: when the hole on the machined workpiece is required to be reamed or trimmed, the cutter handle 1 drives the cutting edge 31 and the trimming edge 41 on the connecting rod 2 to rotate, the cutting edge 31 firstly contacts the hole wall to carry out cutting operation on the hole wall, the cutting edge 31 and the side wall of the connecting rod 2 form an included angle of 45 degrees, the hole diameter is gradually increased due to the cutting operation of the cutting edge 31 along with the deep reamer in the hole, the hole is finally enlarged or trimmed to a required size by the cutting edge 31, the reamer continues to be deep, the trimming edge 41 contacts the hole wall to carry out trimming operation on the hole wall, and scraps generated by the cutting operation of the cutting edge 31 and the trimming operation of the trimming edge 41 are discharged through the chip removal groove 5, so that the hole is not required to be machined for multiple times by using multiple reamers with different precision in the hole reaming or trimming process, and the machining efficiency of the hole reaming or trimming is improved.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A reamer for machining, characterized in that: including handle of a knife (1), the one end coaxial coupling of handle of a knife (1) has connecting rod (2), connecting rod (2) are provided with cutting portion (3) that are used for carrying out cutting operation and are used for carrying out the troweling portion (4) of troweling operation, cutting portion (3) set up in connecting rod (2) keep away from the one end tip of handle of a knife (1), troweling portion (4) set up in connecting rod (2) keep away from the one end lateral wall of handle of a knife (1).

2. The reamer of claim 1, wherein: the cutting part (3) comprises a plurality of cutting edges (31), and the cutting edges (31) are uniformly and alternately surrounded on the end surface edge of the connecting rod (2).

3. The reamer for machining according to claim 2, wherein: the cutting edge (31) is obliquely arranged, and an included angle of 45 degrees is formed between the cutting edge (31) and the side wall of the connecting rod (2).

4. The reamer of claim 1, wherein: the trimming part (4) comprises a plurality of trimming blades (41), each trimming blade (41) is arranged along the length direction of the connecting rod (2), and the trimming blades (41) are uniformly arranged at intervals around the side wall of the connecting rod (2).

5. The reamer for machining according to claim 4, wherein: the trimming blade (41) is arranged in a bending spiral along the length direction of the connecting rod (2).

6. The reamer for machining according to claim 4, wherein: the side wall of the connecting rod (2) is provided with a chip removal groove (5), and the chip removal groove (5) is communicated with the cutting part (3) and the polishing part (4).

7. The reamer for machining according to claim 6, wherein: the number of the chip grooves (5) is provided with a plurality of chip grooves (5), the chip grooves (5) are evenly spaced and encircling the side wall of the connecting rod (2), and each chip groove (5) is located between two adjacent trimming blades (41).

8. The reamer for machining according to claim 4, wherein: the diameter of the connecting rod (2) is smaller than that of the knife handle (1), and the distance from the trimming blade (41) to the central axis of the connecting rod (2) is larger than the radius of the connecting rod (2).