CN216398831U

CN216398831U - A drop-down formula frock for processing of wind-powered electricity generation gear box usefulness

Info

Publication number: CN216398831U
Application number: CN202123121442.6U
Authority: CN
Inventors: 黄正廷; 吴伟强; 傅旸
Original assignee: Nanjing Avis Transmission Technology Co ltd
Current assignee: Nanjing Avis Transmission Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-29
Anticipated expiration: 2031-12-08

Abstract

The utility model provides a pull-down type tool for processing a wind power gear box body, wherein an upper box body and a lower box body are combined into a box body, and the pull-down type tool is characterized in that: the tool cushion block is provided with a space with an opening on the side surface below the top plate, and the top plate is provided with a through hole; the tool cushion block is fixedly connected with the tool base; the T-shaped bolt penetrates through a T-shaped groove on the machine tool workbench, and after the T-shaped bolt penetrates through a through hole on the tool base, the fastening nut is screwed on the T-shaped bolt and tightly presses the tool base; a double-ended stud is screwed in a threaded hole formed in the lower surface of the process step of the lower box body, and the lower box body is pressed on a top plate of a tool cushion block; the stud penetrates through a through hole formed in the top plate and then extends into the space, and a gap adjusting nut is arranged on the stud in a threaded mode from the lower portion. The utility model provides a tool which is stable in clamping, high in working efficiency, high in machining precision and convenient to disassemble and assemble.

Description

A drop-down formula frock for processing of wind-powered electricity generation gear box usefulness

Technical Field

The utility model relates to the field of tools, in particular to a pull-down type tool for machining a box body of a wind power gear box.

Background

Gears are very important for mechanical products as one of the most common components in mechanical products, while gearboxes are also very important as a guard and support component for gear assemblies. The box structure of gear box generally divide into about structure and front and back structure, and position such as the dead eye of wind-powered electricity generation gear box and terminal surface need go up and carry out rough machining and finish machining after box and lower box combination, consequently need use frock clamp to press from both sides tight fixedly to the box of gear box. The existing tool for machining the box body with the upper structure and the lower structure is generally fixed on a workbench after the end faces on the two sides of the gear box are compressed by a block with a cushion height and a pressing plate, and the mode is low in efficiency.

In the prior art, the heights of four cushion blocks are calculated according to the machining stroke of a machine tool through the height of a box process step provided by a designer. The heights of the four cushion blocks are determined according to the heights of the technological steps of the gearbox. If the height of the process steps of the box body is consistent, the heights of the four cushion blocks matched with the box body are also consistent. If the process steps on the left side and the right side of the box body have a certain height difference, the height difference of the matched block is also needed. And after the box body is finally placed on the block, the median plane of the box body is ensured to be horizontal relative to the workbench of the machine tool. The raising block is directly contacted with the process step below the box body and is used for supporting. The compression of the box body is realized by compressing the back surfaces of the split surfaces at two sides of the upper box body through the long stud compression plates at two sides.

The disadvantages of the prior art are as follows:

1. the block of stepping up is only through face contact with the technology step of box, and the compressing tightly of box compresses tightly the well facet back of going up box both sides through the long double-screw bolt pressure plate in both sides and fixes, and this clamping mode is stable inadequately, meets the box of different models, still needs to join in marriage the double-screw bolt of co-planar back according to the height of going up the box. The universality is poor.

2. The long stud pressure plates on the two sides are clamped and clamped in a mode of pressing the back surfaces of the split surfaces on the two sides of the upper box body to fix, and time and labor are wasted. Two points are generally required to be pressed at the left and the right. If one side is unevenly stressed, the pressing needs to be carried out again.

3. The box compresses tightly the back school table nonconforming, needs both sides bolt all to loosen and just can adjust, and the efficiency of school table is very low.

4. Because the pressing plate presses the back of the middle split surface of the upper box body, the parts are processed in a pressing state in the processing process. After the box body is machined, the bearing hole after finish boring has stress release after the bolt at the pressure plate is loosened, so that the machining precision of parts is reduced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pull-down type tool for machining a wind power gear box body, aims to overcome the defects in the prior art, and provides the tool which is stable in clamping, high in working efficiency, high in machining precision and convenient to disassemble and assemble.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

a pull-down tool for processing a wind power gear box body is characterized in that an upper box body and a lower box body are combined into a box body,

the method is characterized in that:

the tool cushion block is provided with a space with an opening on the side surface below the top plate, and the top plate is provided with a through hole;

the tool cushion block is fixedly connected with the tool base;

the T-shaped bolt penetrates through a T-shaped groove on the machine tool workbench, and after the T-shaped bolt penetrates through a through hole on the tool base, the fastening nut is screwed on the T-shaped bolt and tightly presses the tool base;

a double-ended stud is screwed in a threaded hole formed in the lower surface of the process step of the lower box body, and the lower box body is pressed on a top plate of a tool cushion block;

the stud penetrates through a through hole formed in the top plate and then extends into the space, and a gap adjusting nut is arranged on the stud in a threaded mode from the lower portion.

The tool cushion block is fixedly connected with the tool base through welding.

The reinforcing rib plates are welded with the tool cushion block and the tool base respectively.

The 4 tooling bases, the tooling cushion blocks, the T-shaped bolts, the stud bolts, the fastening nuts and the gap adjusting nuts are combined to be respectively installed corresponding to 4 process steps of the lower box body.

The utility model has the advantages that:

1) the pull-down tool is fixed with a threaded hole in the process step of the lower box body through the stud, so that the clamping is more stable;

2) if the box body is clamped and fixed well and the meter is not qualified, the height can be adjusted by pulling a gap adjusting nut below the pull-down tool through a wrench without loosening four parts, so that the working efficiency is higher;

3) the pull-down tool is only stressed on the technological step, a bearing hole of the box body is not stressed and does not deform, and the machining precision of the pull-down tool is higher;

4) the pull-down tool is simpler in structure, can be operated by a single person, and is more convenient to disassemble and assemble before part machining and after machining is finished, and time and labor are saved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a partial view taken along the line a in fig. 1.

Detailed Description

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained according to the drawings without inventive labor. In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used in this specification, the terms "upper," "lower," "inner," "outer," "bottom," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the utility model and simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2:

the tool provided by the utility model is mainly suitable for the requirements of fine boring, clamping and fixing of the bearing hole of the combined box body on the horizontal machining center.

Because the bearing hole of the box body is on the median plane, the upper box body 1 and the lower box body 2 are combined and processed. The combined box body is to be placed on a machine tool workbench 3 for processing.

The tooling pad 5 has a space 50 with an opening on the side surface below the top plate 51, and the top plate 51 is provided with a through hole.

The tool cushion block 5 and the tool base 4 are fixedly connected through welding, and the reinforcing rib plates 51 are respectively welded with the tool cushion block 5 and the tool base 4 so as to improve the supporting strength of the tool cushion block 5.

4 through-holes have been seted up to tool base 4, 4T type bolts 6 pass T type groove 31 above the lathe workstation 3 respectively, and 4T type bolts 6 pass the through-hole on tool base 4 respectively after, fastening nut 7 spiral shell is established on T type bolt 6 and is compressed tightly tool base 4, thereby tool base 4 fixes on lathe workstation 3, consequently, tool cushion 5 fixes on lathe workstation 1, and tool base 4 and tool cushion 5 can adjust suitable position through removing in T type groove 31 before fixed.

The lower box body 2 is provided with 4 technological steps 21, so that the combination of 4 tooling bases 4, tooling cushion blocks 5, T-shaped bolts 6, stud bolts 8, fastening nuts 7 and clearance adjusting nuts 9 respectively corresponds to the 4 technological steps 21.

The lower surface of the process step 21 below the lower case 2 needs to be previously processed with the screw hole 22. After the upper box body 1 and the lower box body 2 are combined, before the upper box body and the lower box body are placed on the tool cushion block 5, in the threaded holes 22 formed in the lower surfaces of the 4 technological steps of the lower box body 2, the stud bolts 8 are required to be screwed up and screwed down respectively, and then the upper box body 1 and the lower box body 2 which are combined are hoisted to the tool cushion block 5 and pressed on the top plate 51.

The stud 8 passes through a through hole formed in the top plate 51 and then extends into the space 50, the gap adjusting nut 9 is screwed onto the stud 8 from below, and the gap between the process step 21 and the top plate 21 is tightened by tightening the gap adjusting nut 9.

Since the space 50 is open on the side, the gap adjusting nut 9 can be tightened by a wrench by extending into the space from the opening.

The height of four cushion blocks is calculated according to the machining stroke of a machine tool through the height of a box process step provided by a designer. The heights of the four cushion blocks are determined according to the heights of the technological steps of the gearbox. If the height of the process steps of the box body is consistent, the heights of the four cushion blocks matched with the box body are also consistent. If the process steps on the left side and the right side of the box body have a certain height difference, the height difference of the matched block is also needed. And after the box body is finally placed on the block, the median plane of the box body is ensured to be horizontal relative to the workbench of the machine tool. The raising block is directly contacted with the process step below the box body and is used for supporting. The compression of the box body is realized by compressing the back surfaces of the split surfaces at two sides of the upper box body through the long stud compression plates at two sides. And after the pressing plates on the two sides beside the machine tool are tightly pressed, the machine tool performs meter calibration. If the meter calibration data is unqualified, the pressure plates on the two sides are required to be removed for adjustment, so that the efficiency is very low;

according to the tool, the through hole capable of penetrating through the stud 8 is additionally formed in the top plate 51 of the tool cushion block 5, the gap from the box process step 21 to the top plate 51 of the tool cushion block 5 is ensured by screwing the gap adjusting nut 9 in the tool cushion block 5, and after the stud 8 is screwed, the pretightening force of the stud 8 can generate downward pulling force, so that the box is ensured not to be displaced easily in the machining process of a machine tool. And after the tool is fixed with the box body, if the box body is unqualified in calibration before machining, only the gap adjusting nut 9 below the single tool cushion block 5 needs to be adjusted according to the data of the calibration, so that the efficiency is higher.

Secondly original frock is through compressing tightly the back of upper box and lower box faying face, and after the box processing was accomplished, the bolt that loosens both sides can lead to the box finish boring dead eye to produce and warp. The tool is fixed by tensioning the lower box downwards, so that the precision error caused by deformation can not be caused.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a drop-down formula frock for processing of wind-powered electricity generation gear box body usefulness, goes up box and makes up into box, its characterized in that with lower box: the tool cushion block is provided with a space with an opening on the side surface below the top plate, and the top plate is provided with a through hole; the tool cushion block is fixedly connected with the tool base; the T-shaped bolt penetrates through a T-shaped groove on the machine tool workbench, and after the T-shaped bolt penetrates through a through hole on the tool base, the fastening nut is screwed on the T-shaped bolt and tightly presses the tool base; a double-ended stud is screwed in a threaded hole formed in the lower surface of the process step of the lower box body, and the lower box body is pressed on a top plate of a tool cushion block; the stud penetrates through a through hole formed in the top plate and then extends into the space, and a gap adjusting nut is arranged on the stud in a threaded mode from the lower portion.

2. The pull-down tool for machining the wind power gearbox body as claimed in claim 1, wherein the pull-down tool comprises: the tool cushion block is fixedly connected with the tool base through welding.

3. The pull-down tool for machining the wind power gearbox body as claimed in claim 1, wherein the pull-down tool comprises: the reinforcing rib plates are welded with the tool cushion block and the tool base respectively.

4. The pull-down tool for machining the wind power gearbox body as claimed in claim 1, wherein the pull-down tool comprises: the 4 tooling bases, the tooling cushion blocks, the T-shaped bolts, the stud bolts, the fastening nuts and the gap adjusting nuts are combined to be respectively installed corresponding to 4 process steps of the lower box body.