CN217020868U

CN217020868U - Fettling cutter mounting structure

Info

Publication number: CN217020868U
Application number: CN202220510164.9U
Authority: CN
Inventors: 杨雪峰; 邓娟; 邹湘余; 谢启连
Original assignee: Liling Huaxin Insulator Technology Co ltd
Current assignee: Liling Huaxin Insulator Technology Co ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-07-22
Anticipated expiration: 2032-03-10

Abstract

The utility model discloses a fettling tool mounting structure, which comprises a fettling tool and a tool rest; the tool rest is provided with a mechanical arm assembling part and a tool assembling part; the assembling groove of the cutter assembling part is matched with the assembling end of the fettling cutter; the bottom of the assembly groove is tapped with a threaded assembly hole, slots are arranged on two sides of the bottom surface of the assembly groove, auxiliary assembly plates are detachably inserted into the slots and comprise rigid material substrates, and rubber linings are respectively formed on the surfaces of two sides of each rigid material substrate; the auxiliary assembling plate is also provided with a through hole matched with the threaded assembling hole, and the cutter frame is used for assembling and fixing the fettling cutter through a threaded assembling part after the fettling cutter is pressed into the assembling groove. The utility model can effectively reduce the impact damage of the fettling tool in the operation process and prolong the actual service life of the fettling tool.

Description

Fettling cutter mounting structure

Technical Field

The utility model relates to the technical field of processing equipment of insulating porcelain sleeves, in particular to a fettling tool mounting structure.

Background

At present, corresponding tolerance generally needs to be increased in the wet forming process of the insulating porcelain bushing in the domestic electric porcelain industry, then a fettling tool is utilized to perform fettling operation on an insulating porcelain bushing blank body, the two commonly used fettling modes at present comprise vertical fettling and horizontal fettling, the processing modes of the vertical lathe processing and the horizontal lathe processing in the lathe processing are similar to those of a common horizontal lathe, and only difference exists between a cutter and a processing object. The trimming mode of vertical trimming is suitable for processing medium and large-sized insulating porcelain sleeve blanks, the insulating porcelain sleeve blanks are vertically placed and fixed in position, and then the trimming cutter is used for trimming the insulating porcelain sleeve blanks.

Traditional track fettling structure fettling precision is low, still needs the manual work to carry out a large amount of umbrellas after the fettling is accomplished, scrapes the circular arc, and finish machining operations such as blank smearing can directly influence subsequent handling otherwise. In order to solve the problems, manufacturers also adopt a mechanical arm to perform fettling operation, and utilize high-precision transmission of the mechanical arm in a space coordinate system to perform processing, but the fettling tools need to be fixedly connected by using a specially-made mounting tool when the mechanical arm is assembled, and in order to ensure the processing precision, the connection positions of the fettling tools are mostly rigidly connected, so that fatigue damage is easily caused by accumulation of rigid stress impact in the using process of the fettling tools, the tool positioning of the fettling tools is deviated, the actual service life of the fettling tools is greatly reduced, and the production cost is increased.

Disclosure of Invention

The present invention provides a fettling tool mounting structure, which is used to solve the above-mentioned drawbacks in the prior art.

The technical problem solved by the utility model is realized by adopting the following technical scheme:

a fettling tool mounting structure comprises a fettling tool and a tool rest; the tool rest is provided with a mechanical arm assembling part which is assembled and connected with the mechanical arm and a tool assembling part which is used for assembling the fettling tool; the cutter assembling part comprises an assembling groove, and the assembling groove is matched with the assembling end of the fettling cutter; the bottom of the assembly groove is tapped with a threaded assembly hole, slots are arranged on two sides of the bottom surface of the assembly groove, an auxiliary assembly plate is detachably inserted into the slots, the auxiliary assembly plate comprises a rigid material substrate, and rubber linings are respectively formed on the surfaces of two sides of the rigid material substrate; the auxiliary assembling plate is further provided with a through hole matched with the thread assembling hole in a forming mode, and the tool rest is used for assembling and fixing the fettling tools through the thread assembling parts after the fettling tools are pressed into the assembling groove.

The tool rest is a disc-type tool rest, and more than two tool assembling parts are arranged at intervals on the outer edge of the disc surface of the disc-type tool rest; the fettling tool comprises at least one finishing fettling tool and one rough fettling tool which are respectively assembled on different tool assembling parts;

the mechanical arm assembly part is arranged at a position, corresponding to the circle center, of the bottom surface of the disc body of the disc type tool rest, the mechanical arm assembly part comprises a rotary table, the tool rest is fixedly connected with the mechanical arm through the mechanical arm assembly part, and the rotary table can drive the tool rest to rotate to realize function switching of different tool assembly parts.

As a further limitation, a detachable cutter holder is arranged on the cutter rest, the detachable cutter holder is in rigid assembly connection with the installation cutter holder, and the cutter assembly part is arranged at the other end, opposite to the rigid assembly part, of the detachable cutter holder and is arranged along the length direction of the detachable cutter holder.

By way of further limitation, the rigid material substrate is formed by molding high-carbon steel.

As a further limitation, the rubber lining is formed by molding one of butadiene rubber, styrene butadiene rubber and butyl rubber.

As a further limitation, an assembly allowance is reserved between two sides of the assembly groove and an assembly end of the fettling cutter, a rubber lining block is arranged at the position of the assembly allowance, the section of the rubber lining block is a right-angled triangle, and two right-angled sides of the right-angled triangle are respectively attached to the side wall and the bottom surface of the assembly groove; the section of the trimming cutter which is correspondingly arranged is an inverted isosceles trapezoid, and the bevel edge of the inverted isosceles trapezoid is parallel to the bevel edge of the right-angled triangle and is attached during assembly.

Has the advantages that: the installation structure of the fettling tool can be used for carrying out auxiliary standardized installation on the fettling tool on the mechanical arm, and can effectively improve the shock resistance of the fettling tool by lining the auxiliary assembly plate on the bottom surface of the assembly groove and matching the assembly groove, so that the influence of rigid impact on the tool blade surface is reduced when the fettling tool carries out fettling operation on a blank body of an insulating porcelain bushing, the impact damage and the fatigue damage of the fettling tool are reduced, and the service life and the actual fettling effect of the fettling tool are prolonged.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a schematic view of a section a-a in fig. 1.

Fig. 3 is a detail enlarged schematic view of part B in fig. 2.

Wherein: 1. finishing a fettling cutter; 2. the tool apron can be disassembled; 3. assembling the groove; 4. a tool holder; 5. a flange type assembly hole; 6. a fixed tool apron; 7. roughly trimming and trimming a cutter; 8. a rubber filler block; 9. a cutter mounting portion; 10. assembling a screw rod; 11. fastening a bolt; 12. an auxiliary assembly plate; 13. a threaded assembly hole; 14. assembling a gasket; 15. an upper rubber lining layer; 16. a rigid material substrate; 17. a lower rubber lining layer; 18. and (4) a slot.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further explained by combining the specific drawings and the embodiments.

In the following examples, it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1 to 3, the structure for mounting a fettling tool can be used to mount a fettling tool on a robot arm, in this embodiment, a main body of the structure for mounting a fettling tool is a tool rest 4, the tool rest 4 is a disk-type tool rest structure, a robot arm assembling portion is disposed on a bottom surface of the tool rest and corresponds to a circle center, the robot arm assembling portion includes a turntable, a rotation axis of the turntable passes through a center of a disk body where the tool rest 4 is, the tool rest 4 is externally connected to a robot arm through the turntable and the robot arm assembling portion, and the position and the orientation of the tool rest 4 are adjusted and the entire tool rest 4 is driven by the robot arm to rotate around the circle center of the disk body.

The outer ring position of the tool rest 4 is correspondingly provided with four tool assembly parts, and each tool assembly part can be used for assembling a fettling tool. In the present embodiment, the tool mounting portion includes two forms, i.e., a detachable tool holder 2 and a fixed tool holder 6, and in the state shown in the figure, the tool mounting portion at three positions of the upper side, the left side and the lower side is the detachable tool holder 2, and the tool mounting portion at the right side is the fixed tool holder 6. The tool rest 4 is correspondingly provided with a plurality of annular flange type assembly holes 5, the fixed tool apron 6 and the tool rest 4 are integrally formed, the three detachable tool apron 2 are consistent in structure and are assembled and connected through the three flange type assembly holes 5 and corresponding threaded connecting pieces on the outer annular surface of the tool rest 4 according to the pattern shown in figure 1.

The tool rest 4 is driven by a rotary table on the mechanical arm assembling part, so that the function switching of different tool assembling parts on the tool rest is realized by rotating the mounting tool apron.

In order to ensure the continuity of fettling processing, at least one finishing fettling tool and one rough fettling tool should be assembled on four tool assembling parts correspondingly arranged on the outer edge of the upper tool rest 4 in the embodiment, assembling grooves 3 are respectively arranged on the detachable tool apron 2 and the fixed tool apron 6 to serve as tool assembling parts, each assembling groove is of a blind groove structure, three threaded assembling holes 13 with the same size are formed in the bottom surface of the groove, and internal thread surfaces are tapped in the threaded assembling holes 13; the two sides of the bottom surface of the assembly groove 3 are provided with slots 18, the slots 18 are arranged along the length direction of the assembly groove 3, the assembly groove 18 is inserted with an auxiliary assembly plate 12, the auxiliary assembly plate 12 is of a multilayer structure, the structure of the auxiliary assembly plate is shown in figure 3, the auxiliary assembly plate comprises a rigid material substrate 16, the rigid material substrate 16 is formed by cutting a high-carbon steel sheet, and an upper rubber lining 15 and a lower rubber lining 17 which are formed by styrene butadiene rubber are respectively formed on the two side surfaces of the rigid material substrate 16; in addition, a through hole matching the screw mounting hole 13 is formed in the auxiliary mounting plate 12.

The auxiliary mounting plate 12 is removably inserted into the mounting slot 18 and can be replaced after a wear failure.

In the present embodiment, assembly allowances are reserved on two sides of the assembly groove 3, a rubber lining block 8 is arranged at the position of the assembly allowances, the section of the rubber lining block 8 is a right-angled triangle, and two right-angled sides of the right-angled triangle respectively abut against the upper surface of the auxiliary assembly plate 12 and the side walls of the assembly groove 3; the section of the assembly part of the fettling tool (both the finishing fettling tool 1 and the rough fettling tool 7) matched with the assembly groove 3 is an inverted isosceles trapezoid, and the hypotenuse of the inverted isosceles trapezoid is parallel to the hypotenuse of the right-angled triangle section of the rubber lining block 8 and is attached during assembly.

The fettling tool is assembled according to the pattern shown in fig. 2 during assembly, the auxiliary assembling plate 12 is inserted in the slot 18 in place, then the assembly screw 10 is screwed into the threaded assembly hole 13, and after the rubber pad 8 is filled, the cutter mounting portion 9 is pressed into the mounting groove 3 between the two rubber pads 8, and then the mounting washer 14 is mounted on the upper portion of the mounting screw 10, and is fastened to the mounting washer 14 by the fastening bolt 11, in the process, the cutter mounting portion 9 is kept in a pressed state with the rubber pad 8, and pressed and abutted against the surface of the auxiliary mounting plate 12 by the rubber pad 8, in the process, a certain gap can be kept between the cutter assembling part 9 and the upper rubber lining 15 of the auxiliary assembling plate 12, and the cutter assembling part can also be abutted against the surface of the upper rubber lining 15, so that a user can judge the wear condition through the gap between the lower bottom surface of the cutter assembling part 9 and the upper rubber lining 15 and the embossing on the surface of the upper rubber lining 15.

According to the utility model, three sides of the fettling tool are buffered by the upper rubber lining layer 15 and the rubber lining block 8, so that the abrasion damage of external stress impact on the fettling tool is reduced, the fatigue damage of the fettling tool is replaced by the abrasion on the inclined plane of the upper rubber lining layer 15 and the rubber lining block 8, the actual service life of the fettling tool is prolonged, the service life of the fettling tool can be increased by 30-50% compared with that of a traditional rigid connection assembly mode, and the processing cost is reduced.

In other embodiments, the rubber pad 8 can be eliminated, and the section of the cutter mounting portion 9 is set to be a rectangular section matched with the mounting groove 3, so that the structure of the trimming cutter can be simplified, and the molding cost of the trimming cutter can be effectively reduced. This embodiment structure is similar in the effect of use to the rough trimming cutter 7, but the effect of extending the service life of the trimming cutter is not as good as the effect of fitting the rubber pads 8 to the inverted trapezoidal cutter fitting portion 9 to the finish trimming cutter 1, and the quality of trimming is slightly inferior to the effect of fitting the rubber pads 8 to the inverted trapezoidal cutter fitting portion 9.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and such changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A fettling tool mounting structure is characterized by comprising a fettling tool and a tool rest; the tool rest is provided with a mechanical arm assembling part which is assembled and connected with the mechanical arm and a tool assembling part which is used for assembling the fettling tool; the cutter assembling part comprises an assembling groove, and the assembling groove is matched with the assembling end of the fettling cutter; the bottom of the assembly groove is tapped with a threaded assembly hole, slots are arranged on two sides of the bottom surface of the assembly groove, an auxiliary assembly plate is detachably inserted into the slots, the auxiliary assembly plate comprises a rigid material substrate, and rubber linings are respectively formed on the surfaces of two sides of the rigid material substrate; the auxiliary assembling plate is further provided with a through hole matched with the thread assembling hole in a forming mode, and the tool rest is used for assembling and fixing the fettling tools through the thread assembling parts after the fettling tools are pressed into the assembling groove.

2. The fettling tool mounting structure of claim 1, wherein the tool rest is a disc-type tool rest, and two or more tool mounting portions are provided at intervals on an outer edge of a disc surface of the disc-type tool rest; and the fettling tools comprise at least one finishing fettling tool and one rough fettling tool which are respectively assembled on different tool assembling parts.

3. The fettling tool mounting structure of claim 2, wherein the mechanical arm assembling portion is disposed at a position corresponding to a circle center on the bottom surface of the disc body of the disc-type tool rest, the mechanical arm assembling portion comprises a turntable, the tool rest is fixedly connected with the mechanical arm through the mechanical arm assembling portion, and the turntable can drive the tool rest to rotate so as to realize function switching of different tool assembling portions.

4. The fettling tool mounting structure of claim 1, wherein the tool holder is provided with a detachable tool holder, the detachable tool holder is rigidly connected to the tool holder, and the tool mounting portion is disposed at an end of the detachable tool holder opposite to the end where the tool mounting portion is rigidly connected, and is disposed along a length direction of the detachable tool holder.

5. The setting tool mounting structure according to claim 1, wherein the rigid material substrate is formed of high carbon steel.

6. The fettling tool mounting structure of claim 1 wherein the rubber lining is molded from one of butadiene rubber, styrene butadiene rubber, and butyl rubber.

7. The mounting structure of the fettling tool of claim 1, wherein an assembly margin is reserved between two sides of the assembly groove and an assembly end of the fettling tool, a rubber lining block is arranged at the position of the assembly margin, the section of the rubber lining block is a right-angled triangle, and two right-angled sides of the right-angled triangle are respectively attached to the side wall and the bottom surface of the assembly groove; the section of the trimming cutter which is correspondingly arranged is an inverted isosceles trapezoid, and the bevel edge of the inverted isosceles trapezoid is parallel to the bevel edge of the right triangle and is attached to the right triangle during assembly.