CN212398478U

CN212398478U - Welding tool grinding head, welding tool grinding device and grinding system

Info

Publication number: CN212398478U
Application number: CN202021197754.8U
Authority: CN
Inventors: 万龙; 黄体方; 温琦; 刘鑫; 张龙
Original assignee: Harbin World Wide Welding Technology Co ltd
Current assignee: Anhui Wanyu Mechanical Equipment Technology Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-01-26
Anticipated expiration: 2030-06-24

Abstract

The utility model relates to a friction stir welding technical field, concretely relates to bistrique, soldering set grinding device and coping system are repaiied to soldering set. The welding tool grinding head comprises a first opening arranged on the body, and the inner contour of the first opening is provided with a profiling structure for accommodating a shaft shoulder of the welding tool; the second opening is connected with the first opening, so that the first opening is communicated with the outside along the radial direction; and the grinding piece is used for grinding the surface of the shaft shoulder of the welding tool. When the grinding tool is used, the welding tool and the grinding head can be close to each other, the welding tool shaft shoulder is accommodated in the profiling structure, the welding tool grinding head and the welding tool are kept to rotate relatively, the surface of the welding tool shaft shoulder is ground by the grinding piece, so that the adhesion materials attached to the surface of the shaft shoulder are removed, and the removed adhesion materials are discharged outwards from the second opening, so that the removal of the adhesion materials of the shaft shoulder is facilitated.

Description

Welding tool grinding head, welding tool grinding device and grinding system

Technical Field

The utility model relates to a friction stir welding technical field, concretely relates to bistrique, soldering set grinding device and coping system are repaiied to soldering set.

Background

The friction stir welding technology is characterized in that a welding tool is driven to synchronously rotate through high-speed rotation of a machine shaft, slowly pricks into a workpiece to be welded and moves along the position of a to-be-welded seam, and the material around the welding tool is plasticized and connected through the friction heat of the welding tool and the material to be welded serving as a welding heat source. The friction stir welding technology has the advantages of high welding quality, energy conservation, environmental protection and the like, and is widely applied to the fields of aerospace, rail transit, automobile manufacturing and the like.

Static shoulder friction stir welding is a method developed on the basis of conventional friction stir welding. The welding tool has the characteristics that: the shaft shoulder and the stirring pin are separated, in the welding process, the stirring pin rotates, the shaft shoulder does not rotate, the method can effectively reduce the input of heat and the generation of flash, and the surface quality and the welding line strength of the welding line are improved. Due to the structural characteristics of the static shaft shoulder friction stir welding, a gap is required to be reserved between the stirring pin and the static shaft shoulder so that the stirring pin and the static shaft shoulder can rotate relatively. In the welding process, the material softened by friction can enter along the clearance of pin and shaft shoulder to inside accumulation can produce great hindrance effect to the rotation of pin when accumulating to a certain extent, leads to welding process unstability easily, even equipment to damage. In order to prevent the accumulation of material inside the shaft shoulder, a clearance hole is often formed in the stationary shaft shoulder, so that the material entering the gap can be discharged along the clearance hole in time. In the long-distance welding process, materials are continuously extruded from the chip removal holes and attached to the surface of the static shaft shoulder, and if the attached materials are not processed in time, the stability of the welding process is influenced to a certain extent.

At present, for removing static shaft shoulder attached materials, a robot is adjusted to a proper position after being stopped and then manual trimming is carried out. The disadvantage is that manual trimming is difficult to trim cleanly on one hand, and on the other hand, the robot needs to be stopped, and then the robot shaft is adjusted to a proper position to perform manual trimming, and particularly, the production efficiency is greatly reduced in mass production.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that static shaft shoulder adhesive material is difficult to clear away among the prior art to a soldering set is repaiied bistrique, soldering set sharpening device and coping system are provided.

In order to solve the technical problem, the utility model discloses a technical scheme as follows:

the utility model provides a grinding head of a welding tool, which is also called a grinding port and comprises a body;

the first opening is formed in the body; the inner profile of the body defining the first opening has a contoured configuration to receive a tool shoulder, optionally the contoured configuration has a tapered configuration;

the second opening is arranged on the body and is connected with the first opening, so that the first opening is communicated with the outside along the radial direction;

the grinding piece is fixedly arranged on the body, at least partially extends into the second opening at the position where the first opening and the second opening are connected, and is used for grinding the surface of the shaft shoulder of the welding tool; preferably, a gap of 0.1mm-3mm exists between the grinding head and the shaft shoulder during grinding operation.

In the welding tool grinding head, the grinding piece is arranged on the body in the second opening; further, the thinning is a tool head (i.e., an insert), and is preferably a milling or turning tool insert.

Optionally, in the above soldering set grinding head, the first opening is a through hole.

In the welding tool grinding head, the body is respectively provided with an upper end surface and a lower end surface along the axial direction of the through hole; the cross-sectional area of the through hole close to the upper end face is larger than that of the through hole close to the lower end face; furthermore, a plurality of mounting holes are formed in the upper end face and used for mounting the grinding head.

The utility model also provides a soldering set coping device, it contains as before the soldering set coping head.

Further, the welding tool grinding device also comprises a servo motor and a transmission; the coping head is fixed on an output shaft of the transmission.

The welding tool grinding device also comprises a tool setting gauge used for aligning the welding tool grinding device and the welding tool; when alignment is needed, the tool setting gauge is arranged on an output shaft of the transmission in a mode of replacing the grinding head; or the tool setting gauge is installed on the sharpening head.

Further, in the welding tool sharpening device, the tool setting gauge comprises a base and a tool setting gauge tip mounted on the base.

In the welding tool grinding device, the welding tool grinding device further comprises a rack, wherein the rack is provided with the servo motor and the transmission, and the rack is further provided with a storage device of the tool setting gauge.

In the above welding tool sharpening device, the output shaft of the transmission may further include at least one bearing, and preferably, two bearings may be provided. The output shaft of the transmission also comprises a flange plate which can be used for mounting the grinding head or the tool setting gauge.

The utility model also provides a coping system, which comprises the soldering set coping device; and the controller is used for controlling the operation of the welding tool sharpening device.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a grinding head is repaiied to soldering set, this grinding head is also called the coping mouth and is used for the attached material on the coping soldering set, and its first opening is seted up on the body, the interior profile that forms first opening on the body has the profile modeling structure who holds the soldering set shaft shoulder, and this profile modeling structure is similar with the shaft shoulder surface appearance of soldering set, and it can be better laminating shaft shoulder surface, occupies the position of attached material, impels the removal of attached material; the second opening of the grinding head is arranged on the body and is connected with the first opening, so that the first opening is communicated with the outside along the radial direction; the second opening provides a position for installing the grinding piece, and meanwhile, the removed attached materials can fall off conveniently; the grinding piece is fixedly arranged on the body and at least partially extends into the second opening at the joint position of the first opening and the second opening; when the grinding tool is used, the welding tool and the grinding head can be close to each other, the welding tool shaft shoulder is accommodated in the profiling structure, the welding tool grinding head and the welding tool are kept to rotate relatively, the surface of the welding tool shaft shoulder is ground by the grinding piece, so that the adhesion materials attached to the surface of the shaft shoulder are removed, and the removed adhesion materials are discharged outwards from the second opening, so that the removal of the adhesion materials of the shaft shoulder is facilitated.

2. The utility model provides a soldering set grinding device, the tool setting appearance of its setting, before soldering set grinding operation, adjustment soldering set robot main shaft for epaxial shoulder of axle is in same axis with the tool setting appearance, realizes aim at fast.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a welding tool grinding device provided in an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a grinding head provided in an embodiment of the present invention;

fig. 3 is a schematic view illustrating a use of the welding tool sharpening device provided in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a tool setting gauge in an embodiment of the present invention;

fig. 5 is a schematic view of the tool setting gauge used in the embodiment of the present invention.

Description of reference numerals:

1-a speed changer, 2-a servo motor, 3-a flange plate, 4-a grinding head, 5-a bearing, 6-a static shaft shoulder, 7-a mounting shaft sleeve, 8-a scrap box, 9-a tool setting gauge, 10-a shell and 11-an observation window; 4-1-a second opening, 4-2-a first opening, 4-3-a mounting hole, and 4-4-a cutter head; 9-1-tool setting gauge tip, 9-2-base and 9-3-tool setting gauge mounting hole.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1-2, the present embodiment provides a repair head 4 of a welding tool, which is also called a repair opening, and includes: a body; the body is provided with a first opening 4-2, the inner contour of the first opening 4-2 is provided with a profiling structure for accommodating a shaft shoulder of the welding tool, optionally, the profiling structure is provided with a conical structure as shown in fig. 2, the profiling structure is similar to the appearance of the outer surface of the shaft shoulder of the welding tool, and the profiling structure preferably has a conical structure which can better fit the outer surface of the shaft shoulder and occupy the position of the attachment material to promote the removal of the attachment material; a second opening 4-1 arranged on the body, wherein the second opening 4-1 is a gap arranged on one side of the body; the second opening 4-1 is connected with the first opening 4-2, so that the first opening 4-2 is communicated with the outside along the radial direction; a cutter head 4-4 (i.e., a blade) as a coping member, which is preferably a milling cutter or a turning cutter blade, and other blades may be selected, and in addition, other grinding devices such as a grinding disc and the like may be selected as the coping member; the tool bit 4-4 is fixedly arranged on the body, at least partially extends into the second opening 4-1 at the position where the first opening 4-2 and the second opening 4-1 are connected, and is used for grinding the surface of the shaft shoulder of the welding tool.

The first opening 4-2 is communicated with the outside along the radial direction, namely, the space where the profiling structure is located can be communicated with the outside through a second opening formed in the upper side wall of the body, and the second opening 4-1 can provide a position for installing the cutter head 4-4 and facilitate the falling of removed attached materials; the grinding for the surface of the shaft shoulder of the welding tool includes but is not limited to at least one operation of scraping, cutting, grinding and the like which can remove the material attached to the shaft shoulder of the welding tool.

When the grinding tool is used, the welding tool and the grinding head can be close to each other, the welding tool shaft shoulder is accommodated in the profiling structure, the welding tool grinding head and the welding tool are kept to rotate relatively, the surface of the welding tool shaft shoulder is ground by the grinding piece, so that the adhesion materials attached to the surface of the shaft shoulder are removed, and the removed adhesion materials are discharged outwards from the second opening, so that the removal of the adhesion materials of the shaft shoulder is facilitated.

Optionally, the size of the profiling structure of the grinding head 4 can be reduced, and when the attached materials are removed, a gap of 0.1mm-3mm exists between the grinding head 4 and the shaft shoulder, so that the grinding head and the static shaft shoulder can be better protected.

In addition, in order to enable the grinding head to adapt to the characteristics of material impact and large contact surface, the cutter head 4-4 can be redesigned, for example, the width of the cutting edge of the cutter head is increased, the radian of the cutting edge is increased, the cutting edge is enabled to be better attached to the shaft shoulder, and therefore the attached materials on the surface of the static shaft shoulder can be removed more cleanly.

In the above-described tool sharpening head, the tool bit 4-4 is fixed, in particular, to the body in the second opening 4-1, which can be fixed to the body in a manner well known in the art (for example, by screwing), and with its mouth directed towards the first opening 4-2. The tool bit is mainly used for cutting aluminum scraps on the scrap discharge holes and the scrap discharge grooves on the shaft shoulder. The basic shapes of the chip discharge holes and the chip discharge grooves on the profiling structure and the static shaft shoulder are similar, so that the static shaft shoulder is prevented from being touched during rotation. In particular, as an alternative, the contoured structure may accommodate the stationary shoulder, but the blade will follow a path that conforms to the surface of the stationary shoulder and remains at a distance as it rotates.

In the welding tool grinding head, in order to better receive the shaft shoulder of the welding tool in the grinding process and prevent the shaft shoulder from being damaged, the first opening 4-2 can be a through hole. In addition, the body is respectively provided with an upper end surface and a lower end surface along the axial direction of the through hole; the cross-sectional area of the through hole close to the upper end face is larger than that of the through hole close to the lower end face so as to correspondingly receive a shaft shoulder or the shaft shoulder and a welding pin of a welding tool.

In the welding tool grinding head, the upper end surface of the body is also provided with a plurality of mounting holes for mounting the grinding head on a fixed shaft or a rotating shaft.

Example 2

As shown in fig. 1 and 3 to 5, the present embodiment provides a tool sharpening device including the tool sharpening head described in embodiment 1. The grinding machine further comprises a servo motor 2 and a transmission 1 which are respectively fixed on the frame, the grinding head 4 can be fixed on an output shaft (namely a connecting shaft) of the transmission 2 through a flange 3, the servo motor 2 obtains an amplified torque through the transmission 1 and outputs the amplified torque to the output shaft, and the output shaft is connected with the grinding head 4 through the flange 3, so that the power of the motor is output to the grinding head 4, and the grinding head 4 is provided with a rotary driving force.

In addition, the output shaft of the transmission also comprises at least one bearing 5, and preferably, two or more bearings 5 can be installed to increase the rigidity of the connecting shaft and ensure that the connecting shaft is not bent.

Preferably, in order to increase the installation fault tolerance of the equipment, a coupling connection can be adopted when the connecting shaft is connected with the speed changer 1 and the mounting flange 3.

The welding tool sharpening device further comprises a tool setting gauge 9, wherein the tool setting gauge is used for aligning the welding tool sharpening device with a mounting shaft sleeve 7 and a static shaft shoulder 6 of the welding tool, specifically, the tool setting gauge is mounted on an output shaft and then plays a role in aligning with a robot main shaft of the welding tool. The tool setting gauge 9 comprises a base 9-2 and a tool setting gauge tip 9-1 mounted on the base 9-2, wherein the tool setting gauge tip 9-1 is used for aligning with a main shaft of the robot, the tool setting gauge base 9-2 is used for setting the tool setting gauge tip, and the tool setting gauge mounting hole 9-3 is used for mounting the tool setting gauge 9, for example, in a bolt mode. Preferably, because the tool setting appearance point is comparatively sharp, still can set up the protection device of tool setting appearance, can protect personnel to install on the one hand, can protect the tool setting appearance point on the other hand.

In the upper welding tool grinding device, a grinding head 4 and/or a tool setting gauge 9 can be mounted on the flange plate 3, so that the removal of attached materials and the tool setting of equipment are realized. Preferably, the flange 3 is provided with a tool setting gauge 9, and after the alignment is finished, the tool setting gauge 9 is removed, and the coping head 4 is arranged; or the flange plate 3 is provided with the finishing grinding head 4, the tool setting gauge 9 is arranged when the alignment is needed, and the tool setting gauge 9 is removed after the alignment.

In addition, in order to improve the operation efficiency of the equipment, the tool setting gauge 9 can be arranged on the flange plate 3 and can also be arranged on the grinding head 4.

In order to more conveniently use the grinding device, a rack can be additionally arranged below the grinding device, and the rack and the grinding device are connected in a bolt connection mode, a welding mode, an electromagnetic connection mode, a clamping groove connection mode and the like so as to be convenient for placing the grinding device. Simultaneously, set up a pair of tool setting appearance storage device in sharpening device's the frame, can accomodate tool setting appearance 9 after tool setting appearance 9 uses, avoid appearing tool setting appearance 9 and abandoning at will and the condition that appears losing. In addition, a housing 10 may be provided to protect internal components, and an observation window 11 may be provided to facilitate observation of the grinding state.

In addition, a collecting box can be placed at a position right below the grinding head 4, and removed attached materials can fall into the collecting box, so that the materials are convenient to collect.

As an alternative, when the welding tool grinding device provided by the embodiment is used, the grinding device is installed on the workbench, and is placed at a fixed position and leveled. The tool setting gauge 9 is mounted on the sharpening head 4. The spindle of the friction stir welding robot can be moved to the position near the grinding device in a manual mode and fine adjustment is carried out, so that a shaft shoulder on the spindle and the tool setting gauge 9 are located on the same axis. At this point the tool setting gauge 9 is removed and the servo motor 2 is started to rotate the sharpening head 4. And moving the main shaft to the grinding head 4 in a manner that the main shaft is parallel to the axis of the static shaft shoulder, and stopping moving until the profiling structure in the grinding head 4 is completely attached to the shaft shoulder to finish cleaning. In the process, the cutter head 4-4 is driven by the servo motor 2 to rotate rapidly to cut and remove the attached materials. And after the cleaning is finished, removing the shaft shoulder along the axis direction to finish the cleaning of the static shaft shoulder. In the process, a certain position point can be stored, when the static shaft shoulder needs to be cleaned again after welding, the robot can automatically move to the grinding device for cleaning according to the set position point, and tool setting operation does not need to be carried out again.

In addition, as an alternative embodiment, the sharpening device may be mounted on the frame, placed at a fixed position, leveled, and then fixed.

As another alternative, the shoulder is rotated while holding the dressing head 4 from rotating to facilitate removal of the adherent material when cleaning the adherent material; likewise, the shoulder and the sharpening head can both rotate relative to each other.

Example 3

The embodiment provides a welding tool grinding device, which is different from the welding tool grinding device in embodiment 2 in that when a shaft shoulder on a gantry type friction stir welding is cleaned, the grinding device is rotated by 90 degrees and then installed on a rack, namely, the axis of the grinding device is parallel to the axis of a main shaft of the gantry type friction stir welding machine, and then cleaning is carried out.

Example 4

The embodiment provides a dressing system, which comprises the welding tool dressing device of embodiment 2 or embodiment 3; and a controller controlling operation of the tool sharpening device. By adopting the coping system, the adhering materials can be removed manually or automatically by setting a program.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A grinding head of a welding tool is characterized by comprising,

a body;

a first opening (4-2) opened in the body; the inner contour of the body forming the first opening (4-2) has a profiling structure accommodating the shaft shoulder of the welding tool;

the second opening (4-1) is arranged on the body, and the second opening (4-1) is connected with the first opening (4-2) so that the first opening (4-2) is communicated with the outside along the radial direction;

the grinding piece (4-4) is fixedly arranged on the body, at least partially extends into the second opening (4-1) at the position where the first opening (4-2) and the second opening (4-1) are connected, and is used for grinding the surface of the shaft shoulder of the welding tool.

2. The bonding tool sharpening head according to claim 1, wherein said sharpening member (4-4) is provided on the body inside said second opening (4-1).

3. The bonding tool sharpening head according to claim 1 or 2, wherein said sharpening member (4-4) is a tool head.

4. The bonding tool sharpening head of claim 3, wherein said tool bit is a milling or turning tool blade.

5. The bonding tool grinding head of claim 1 or 2 wherein the first opening is a through hole.

6. The bonding tool grinding head according to claim 5, wherein the body has an upper end face and a lower end face in the through hole axial direction, respectively; the cross-sectional area of the through hole close to the upper end face is larger than that of the through hole close to the lower end face.

7. The bonding tool dressing head of claim 5, wherein said contoured structure has a tapered configuration.

8. The bonding tool grinding head according to claim 6, wherein a plurality of mounting holes (4-3) are provided on the upper end face.

9. The bonding tool grinding head of claim 1 wherein during grinding, a gap of 0.1mm to 3mm exists between the grinding head and the shoulder.

10. A tool sharpening device comprising a tool sharpening head according to any one of claims 1 to 9.

11. The tool grinding device according to claim 10, further comprising,

a servo motor and a transmission;

the coping head is fixed on an output shaft of the transmission.

12. The tool sharpening device according to claim 11, further comprising a tool setting gauge (9) for alignment of the tool sharpening device and the tool;

when alignment is needed, the tool setting gauge (9) is arranged on an output shaft of the transmission in a mode of replacing the grinding head; or the tool setting gauge (9) is installed on the sharpening head.

13. The tool sharpening device according to claim 12, wherein said tool setting gauge (9) comprises a base (9-2) and a tool setting gauge tip (9-1) mounted on said base (9-2).

14. The welding tool grinding device according to claim 12, further comprising a rack, wherein the rack is provided with the servo motor and a transmission, and the rack is further provided with a storage device for the tool setting gauge (9).

15. Tool sharpening device according to any of claims 12-14, characterized in that said transmission output shaft further comprises at least one bearing (5); the output shaft of the transmission also comprises a flange plate (3) for mounting the grinding head or the tool setting gauge (9).

16. A dressing system comprising the tool dressing device according to any one of claims 10 to 15; and the controller is used for controlling the operation of the welding tool sharpening device.