CN217316207U

CN217316207U - Reamer electric welding stable connection structure

Info

Publication number: CN217316207U
Application number: CN202220963948.7U
Authority: CN
Inventors: 陈勤忠; 袁辰
Original assignee: Changshu Kaide Cnc Tool Co ltd
Current assignee: Changshu Kaide Cnc Tool Co ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-08-30
Anticipated expiration: 2032-04-20

Abstract

The utility model relates to a reamer electric welding stable connection structure, which comprises a knife handle and a reamer head, wherein the tail end of the knife handle is provided with a concave hole, the tail end of the reamer head is provided with a boss, and the boss can be inserted into the concave hole; the tail end of the cutter handle is also provided with an insert ring and an inlay groove, the tail end of the reamer head is also provided with a concave ring and a positioning insert, the insert ring is matched with the concave ring in shape and corresponds to the concave ring in position, and the positioning insert is matched with the inlay groove in shape and corresponds to the inlay groove in position; still be provided with first welding groove and the welding hole of stepping down on the handle of a knife, the overhead second welding groove that is provided with of reamer. The utility model relates to a reamer electric welding stable connection structure carries out optimal design to the handle of a knife of reamer and the connection structure of reamer head, through the structure of matched type and the mode that the welding combined together, can strengthen joint strength and be connected the steadiness to can bear radial force and vibration, reduce and break away or crooked phenomenon.

Description

Reamer electric welding stable connection structure

Technical Field

The utility model relates to a reamer structure, concretely relates to reamer electric welding stable connection structure.

Background

The reamer is a rotary tool having one or more teeth for cutting a thin layer of metal on the surface of a machined hole, and the reamer is a rotary finishing tool having a straight edge or a spiral edge for reaming or repairing the hole.

The reamer structure is mainly composed of a reamer head and a reamer handle. The reamer head mainly has the functions of cutting and calibrating, and the diameter of a calibrating position has an inverted taper; the knife handle is used for being clamped by the clamp and is divided into a straight handle and a taper handle.

In the production and processing process of the reamer, a reamer head and a reamer handle are required to be fixedly connected. During reamer operation, radial forces and vibrations are present in the reamer when it is rotated at high speeds. The existing connecting structure has insufficient connecting strength and is not stable enough, and the reamer is easy to break or bend under the action of radial force and vibration, so that the normal work of the reamer is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at:

the reamer electric welding stable connection structure is developed, the connection structure of the cutter handle and the reamer head of the reamer is optimally designed, the connection strength and the connection stability can be enhanced through the structure of a matched type and a welding combination mode, so that the reamer electric welding stable connection structure can bear radial force and vibration, and the phenomenon of breaking or bending is reduced.

In order to achieve the above object, the present invention provides the following technical solutions:

a reamer electric welding stable connection structure comprises a cutter handle and a reamer head, wherein a concave hole is formed in the tail end of the cutter handle, a boss is arranged at the tail end of the reamer head, and the boss can be inserted into the concave hole; the tail end of the cutter handle is further provided with an insert ring and an insert groove, the tail end of the reamer head is further provided with a concave ring and a positioning insert, the insert ring is matched with the concave ring in shape and corresponds to the concave ring in position, and the positioning insert is matched with the insert groove in shape and corresponds to the insert groove in position; still be provided with first welding groove and the welding hole of stepping down on the handle of a knife, the overhead second welding groove that is provided with of reamer.

Furthermore, the boss is in a circular truncated cone shape, and the boss is matched with the inclination of the concave hole; insert the ring and all be the ring form with the concave ring, insert ring and the coaxial setting of shrinkage pool.

Furthermore, the positioning inserts are arranged in a circumferential array relative to the boss, and the positioning inserts are specifically positioned at the edge close to the tail end of the reamer head.

Furthermore, the second weld groove is specifically positioned at the edge of the positioning insert, and the first weld groove corresponds to the second weld groove in position; the first welding groove and the second welding groove are grooves.

Further, the welding hole of stepping down specifically is the unthreaded hole and is linked together with the shrinkage pool, the one end of stepping down the welding hole and keeping away from the shrinkage pool is provided with the chamfer structure.

The utility model has the advantages that: the utility model provides a reamer electric welding stabilizing connection structure, carry out optimal design to the handle of a knife of reamer and the connection structure of reamer head, insert ring and notch ring and arrange mutually, location insert and inlay groove and arrange mutually, simultaneously at first weld groove, second weld groove and the welding of stepping down weld hole inside, realize the structure of cooperation formula and the mode that the welding combined together, can strengthen the joint strength of handle of a knife and reamer head and be connected the steadiness by a wide margin, thereby can make the reamer bear the radial force and the vibration that receive in the course of the work, reduce and break away or crooked phenomenon, the life of extension reamer, ensure the normal clear of reamer processing operation.

Drawings

Fig. 1 is the utility model relates to a reamer electric welding stable connection structure's assembly structure sketch.

Fig. 2 is the utility model relates to a reamer head's of reamer electric welding stable connection structure schematic diagram.

Fig. 3 is the utility model relates to a reamer head end schematic diagram of reamer head of reamer electric welding stable connection structure.

Fig. 4 is the utility model relates to a reamer electric welding stable connection structure's terminal schematic diagram of handle of a knife.

In the figure: 1. a knife handle; 11. concave holes; 12. inserting a ring; 13. inlaying a groove; 14. a first weld groove; 15. welding holes in a yielding way;

2. a reamer head; 21. a boss; 22. a concave ring; 23. positioning an insert; 24. a second weld groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 4, a reamer electric welding stable connection structure comprises a cutter handle 1 and a reamer head 2, wherein a concave hole 11 is formed in the tail end of the cutter handle 1, a boss 21 is arranged at the tail end of the reamer head 2, and the boss 21 can be inserted into the concave hole 11; the end of the cutter handle 1 is further provided with an insert ring 12 and an insert groove 13, the end of the reamer head 2 is further provided with a concave ring 22 and a positioning insert 23, the insert ring 12 is matched with the concave ring 22 in shape and is corresponding in position, the insert ring 12 can be inserted into the concave ring 22, the connection strength is enhanced, the radial force bearing degree is improved, the positioning insert 23 is matched with the insert groove 13 in shape and is corresponding in position, and the positioning insert 23 can be inserted into the insert groove 13, the connection strength is enhanced, and the radial force bearing degree is improved; still be provided with first weld groove 14 and the welding hole 15 of stepping down on the handle of a knife 1, the welding hole 15 of stepping down is used for conveniently carrying out spot welding to handle of a knife 1 inside, be provided with second weld groove 24 on the reamer head 2, first weld groove 14 and second weld groove 24 are used for conveniently welding spot.

The boss 21 is in a circular truncated cone shape, and the boss 21 is matched with the inclination of the concave hole 11; the insert ring 12 and the concave ring 22 are both annular, and the insert ring 12 and the concave hole 11 are coaxially arranged to ensure smooth insertion.

The positioning inserts 23 are arranged in a circumferential array relative to the boss 21, the positioning inserts 23 are matched with the insert grooves 13 to ensure the connection strength, the positioning inserts 23 are specifically positioned at the edge close to the tail end of the reamer head 2, and the positioning inserts 23 and the reamer head 2 are integrally formed.

The second weld groove 24 is specifically located at the edge of the positioning insert 23, and the first weld groove 14 corresponds to the second weld groove 24 in position; the first welding groove 14 and the second welding groove 24 are both grooves, and the first welding groove 14 and the second welding groove 24 can be combined to form a spot welding groove so as to perform spot welding operation and realize connection.

Let a welding hole 15 specifically be the unthreaded hole and be linked together with shrinkage pool 11, the one end that the shrinkage pool 11 was kept away from to let a welding hole 15 is provided with the chamfer structure, makes things convenient for the welding rod to insert the operation, and the inserted welding rod can be welded boss 21 and shrinkage pool 11 and die.

The utility model discloses a theory of operation does: in the assembly process of the reamer, firstly, the reamer head 2 and the cutter handle 1 are coaxially aligned, namely the boss 21 is coaxially opposite to the concave hole 11, then the reamer head 2 moves towards the cutter handle 1, the boss 21 is embedded into the concave hole 11, the insert ring 12 is inserted into the concave ring 22, and meanwhile, the positioning insert 23 is correspondingly inserted into the insert groove 13 until the end face of the cutter handle 1 is contacted with the end face of the reamer head 2; at this time, the first weld groove 14 and the second weld groove 24 are combined to form a spot weld groove;

spot welding is then carried out on the spot welding groove formed by the combination of the first welding groove 14 and the second welding groove 24 by using electric welding equipment, so that the positioning insert 23 and the insert groove 13 are welded; and then, the welding rod extends into the abdicating welding hole 15, the bottom end of the abdicating welding hole 15 is subjected to spot welding, the outer wall surface of the boss 21 and the inner wall surface of the concave hole 11 are welded, and therefore the fixed connection between the cutter handle 1 and the reamer head 2 is achieved.

The above examples are provided for further illustration of the present invention, but do not limit the present invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A reamer electric welding stabilizing connection structure comprises a cutter handle (1) and a reamer head (2), wherein a concave hole (11) is formed in the tail end of the cutter handle (1), a boss (21) is arranged at the tail end of the reamer head (2), and the boss (21) can be inserted into the concave hole (11); the method is characterized in that: the tail end of the cutter handle (1) is further provided with an insert ring (12) and an insert groove (13), the tail end of the reamer head (2) is further provided with a concave ring (22) and a positioning insert (23), the insert ring (12) is matched with the concave ring (22) in shape and corresponds to the concave ring in position, and the positioning insert (23) is matched with the insert groove (13) in shape and corresponds to the insert groove in position; the reamer is characterized in that a first welding groove (14) and a yielding welding hole (15) are further formed in the reamer handle (1), and a second welding groove (24) is formed in the reamer head (2).

2. The reamer electrowelding stabilizing connection structure of claim 1, wherein: the boss (21) is in a circular truncated cone shape, and the boss (21) is matched with the inclination of the concave hole (11); insert ring (12) and concave ring (22) and all be the ring form, insert ring (12) and shrinkage pool (11) coaxial setting.

3. The reamer electrowelding stabilizing connection structure of claim 2, wherein: the positioning inserts (23) are arranged in a circumferential array relative to the boss (21), and the positioning inserts (23) are specifically positioned at the edge close to the tail end of the reamer head (2).

4. The reamer electrowelding stabilizing connection structure of claim 3, wherein: the second weld groove (24) is specifically positioned at the edge of the positioning insert (23), and the first weld groove (14) corresponds to the second weld groove (24); the first welding groove (14) and the second welding groove (24) are grooves.

5. The reamer electrowelding stabilizing connection structure of claim 4, wherein: the yielding welding hole (15) is a smooth hole and is communicated with the concave hole (11), and a chamfering structure is arranged at one end, far away from the concave hole (11), of the yielding welding hole (15).