阅读说明：本技术 一种加工机床箱体部件的专用夹具 (Special fixture for processing machine tool box body component ) 是由 曹自洋 马振武 殷振 卢金斌 苗情 戴晨伟 潘杰 倪家伟 许威 朱译文 于 2021-09-07 设计创作，主要内容包括：本发明公开了一种加工机床箱体部件的专用夹具,包括夹具本体,所述夹具本体沿水平方向设有一根驱动转轴,所述夹具本体上还设有用以驱动驱动转轴做回转运动的伺服驱动机构；所述驱动转轴上固定套装有双面工作台,所述双面工作台相对的相对两个面上均安装有装夹机构,两个装夹机构相互对称；每一个装夹机构均可用于装夹一个机床箱体部件。该专用夹具一次性可以装夹连个机床箱体部件,再加工中心中进行交替加工,形成流水化作业,提高了加工效率。(The invention discloses a special fixture for processing a machine tool box body part, which comprises a fixture body, wherein the fixture body is provided with a driving rotating shaft along the horizontal direction, and the fixture body is also provided with a servo driving mechanism for driving the driving rotating shaft to do rotary motion; a double-sided workbench is fixedly sleeved on the driving rotating shaft, two opposite surfaces of the double-sided workbench are respectively provided with a clamping mechanism, and the two clamping mechanisms are symmetrical to each other; each clamping mechanism can be used for clamping a machine tool box body part. The special fixture can clamp the machine tool box body parts at one time, and the machining center carries out alternate machining to form streamlined operation and improve the machining efficiency.)

1. The utility model provides a special fixture of machine tool box part which characterized in that: the clamp comprises a clamp body, wherein the clamp body is provided with a driving rotating shaft (2) along the horizontal direction, and the clamp body is also provided with a servo driving mechanism for driving the driving rotating shaft (2) to do rotary motion; a double-sided workbench (3) is fixedly sleeved on the driving rotating shaft (2), two opposite surfaces of the double-sided workbench (3) are provided with clamping mechanisms, and the two clamping mechanisms are symmetrical; each clamping mechanism can be used for clamping a machine tool box body part (9).

2. A special fixture for a processing machine tool case member according to claim 1, wherein: the servo driving mechanism comprises a direct current motor and a speed reducer (1), and the direct current motor drives the driving rotating shaft (2) to rotate through the speed reducer (1) so as to complete the rotation of the double-sided workbench (3); the servo driving mechanism further comprises a fixing structure, and the fixing structure comprises an air cylinder (10) and a fixing fork (11); the air cylinder (10) is arranged on the clamp body, and the air cylinder (10) drives the fixed fork (11) to reciprocate along the axial direction of the driving rotating shaft (2); and a notch is formed at the end part of the fixed fork (11) far away from the cylinder (10), the notch is matched with the edge of the double-sided workbench (3), and the fixed fork (11) is utilized to limit the rotation of the double-sided workbench (3).

3. A special fixture for a processing machine tool case member according to claim 1, wherein: the clamping mechanism comprises a jacking hydraulic cylinder (4) fixedly arranged on the double-sided workbench (3), and the axial direction of a piston rod of the jacking hydraulic cylinder (4) is vertical to the table surface of the double-sided workbench (3); the end part of a piston rod of the jacking hydraulic cylinder (4) is fixedly provided with a lifting plate (5), the surface of the lifting plate (5) far away from the piston rod is fixedly provided with a positioning plate (8) and a clamping hydraulic cylinder (7), the axial direction of the piston rod of the clamping hydraulic cylinder (7) is perpendicular to the surface of the positioning plate (8), and a gap for placing a machine tool box body component (9) is reserved between the positioning plate (8) and the piston rod of the clamping hydraulic cylinder (7).

4. A special fixture for processing machine tool case parts according to claim 3, characterized in that: the double-sided workbench (3) is also provided with a guide telescopic rod (6), and the guide telescopic rod (6) is parallel to the piston rod of the jacking hydraulic cylinder (4); one section of the guiding telescopic rod (6) is fixed on the double-sided workbench (3), and the other end of the guiding telescopic rod is fixed with the lifting plate (5).

5. A special fixture for a processing machine tool case member according to claim 2, wherein: the servo driving mechanism comprises two fixing structures which are mutually symmetrical in the axial direction of the driving rotating shaft (2).

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a special fixture for a machine tool box body part.

Background

The machining of the machine tool box body part requires more procedures, and mainly comprises two procedures of drilling and milling. And the machining center is utilized to clamp the box body parts, and only one box body part can be clamped each time. When the box is machined, the box needs to be machined first, and then another box can be clamped for machining. The case member has a large number of machined surfaces, and generally includes a bottom surface and a side surface. Because the feeding of the machining center is generally completed after planar motion is performed from top to bottom, the box body part is disassembled and positioned once again according to needs when one surface is machined. This also leads to a very complicated operation, which is not conducive to the improvement of production efficiency and to streamlined production operations. Therefore, it is necessary to develop a special fixture to reduce the clamping time of the box body component and reduce the clamping process to improve the production efficiency.

Disclosure of Invention

The invention provides a special fixture for a processing machine tool box body part, which can process multiple surfaces of the box body part by one-time clamping, and can simultaneously clamp two box body parts each time so as to solve the problems in the background technology.

The technical scheme of the invention is as follows: a special clamp for processing a machine tool box body part comprises a clamp body, wherein the clamp body is provided with a driving rotating shaft along the horizontal direction, and the clamp body is also provided with a servo driving mechanism for driving the driving rotating shaft to do rotary motion; a double-sided workbench is fixedly sleeved on the driving rotating shaft, two opposite surfaces of the double-sided workbench are respectively provided with a clamping mechanism, and the two clamping mechanisms are symmetrical to each other; each clamping mechanism can be used for clamping a machine tool box body part.

The servo driving mechanism further comprises a direct current motor and a speed reducer, and the direct current motor drives the driving rotating shaft to rotate through the speed reducer so as to complete the rotation of the double-sided workbench; the servo driving mechanism further comprises a fixing structure, and the fixing structure comprises an air cylinder and a fixing fork; the cylinder is arranged on the clamp body and drives the fixed fork to reciprocate along the axial direction of the driving rotating shaft; the end part of the fixed fork far away from the cylinder is provided with a notch, the notch is matched with the edge of the double-sided workbench, and the fixed fork is utilized to limit the rotation of the double-sided workbench.

The clamping mechanism further comprises a jacking hydraulic cylinder fixedly arranged on the double-sided workbench, and the axial direction of a piston rod of the jacking hydraulic cylinder is perpendicular to the table surface of the double-sided workbench; the end part of a piston rod of the jacking hydraulic cylinder is fixedly provided with a lifting plate, a positioning plate and a clamping hydraulic cylinder are fixedly arranged on the surface of the lifting plate far away from the piston rod, the axial direction of the piston rod of the clamping hydraulic cylinder is perpendicular to the surface of the positioning plate, and a gap capable of placing a machine tool box body part is reserved between the positioning plate and the piston rod of the clamping hydraulic cylinder.

Further: the double-sided workbench is also provided with a guide telescopic rod, and the guide telescopic rod is parallel to a piston rod of the jacking hydraulic cylinder; one section of the guiding telescopic rod is fixed on the double-sided workbench, and the other end of the guiding telescopic rod is fixed with the lifting plate.

Further: the servo driving mechanism comprises two fixing structures which are mutually symmetrical in the axial direction of the driving rotating shaft.

Has the advantages that: the scheme provides a special fixture for machining the machine tool box parts, the special fixture can clamp the machine tool box parts one by one, and alternate machining is carried out in a re-machining center, so that streamlined operation is formed, and the machining efficiency is improved;

the special fixture is provided with two fixing structures to position the double-sided workbench, so that the machining precision is improved, and the machining quality is ensured;

on the other hand, the lifting plate is arranged on the double-sided workbench and can descend along the double-sided workbench in life, so that when one machine tool box body part is machined, the other machine tool box body part can be taken down, and the operation of workers is facilitated.

Drawings

FIG. 1 is a schematic view of the overall installation structure of the special fixture of the present invention;

FIG. 2 is a schematic plan view of a double-side table according to the present invention.

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1 and fig. 2, the invention discloses a special fixture for a machine tool box part, which comprises a fixture body mounted on a machining center, wherein the fixture body is also a part of the machining center, but the fixture body itself cannot be a fixture and can be regarded as a part of the machining center for clamping the machine tool box part 9.

The clamp body is also provided with a servo driving mechanism for driving the driving rotating shaft 2 to do rotary motion; the double-sided workbench 3 is fixedly sleeved on the driving rotating shaft 2, two opposite surfaces of the double-sided workbench 3 are provided with clamping mechanisms, and the two clamping mechanisms are symmetrical to each other; each clamping mechanism can be used for clamping a machine tool box body part 9. When the double-sided workbench 3 is produced and machined, each clamping mechanism can clamp one machine tool box part 9, namely two machine tool box parts 9 are simultaneously clamped on two opposite surfaces of one double-sided workbench 3. After one of the machine tool box parts 9 is machined (generally, the machine tool box part 9 positioned above is in a machining state, and the machine tool box part 9 positioned below is in a waiting machining state), the double-sided workbench 3 is driven by the driving rotating shaft 2 to rotate 180 degrees, so that the two machine tool box parts 9 are machined alternately, continuous operation is formed, and the production efficiency is improved.

The servo driving mechanism comprises a direct current motor and a speed reducer 1, and the direct current motor drives the driving rotating shaft 2 to rotate through the speed reducer 1 so as to complete the rotation of the double-sided workbench 3; the servo driving mechanism further comprises a fixing structure, and the fixing structure comprises an air cylinder 10 and a fixing fork 11; the cylinder 10 is arranged on the clamp body, and the cylinder 10 drives the fixing fork 11 to drive the rotating shaft 2 to axially reciprocate; the end of the fixed fork 11 far away from the cylinder 10 is formed with a notch which is matched with the edge of the double-sided workbench 3, and the fixed fork 11 is utilized to limit the rotation of the double-sided workbench 3.

The servo driving mechanism comprises two fixed structures which are mutually symmetrical in the axial direction of the driving rotating shaft 2. The fixed fork 11 of two fixed knot constructs is located the edge of the relative level both sides of drive pivot 2 with two-sided workstation 3 simultaneously and cliies, can eliminate on the one hand or reduce the bearing capacity and the vibrations of drive pivot 2, and on the other hand can fix a position and keep the processing position of box processing part to do benefit to and improve the machining precision, guarantee processingquality.

The clamping mechanism comprises a jacking hydraulic cylinder 4 fixedly arranged on the double-sided workbench 3, and the axial direction of a piston rod of the jacking hydraulic cylinder 4 is vertical to the table surface of the double-sided workbench 3; the end part of a piston rod of the jacking hydraulic cylinder 4 is fixedly provided with a lifting plate 5, the surface of the lifting plate 5 far away from the piston rod is fixedly provided with a positioning plate 8 and a clamping hydraulic cylinder 7, the axial direction of the piston rod of the clamping hydraulic cylinder 7 is perpendicular to the surface of the positioning plate 8, and a gap capable of placing a machine tool box body part 9 is reserved between the piston rod of the clamping hydraulic cylinder 7 and the positioning plate 8.

The double-sided workbench 3 is also provided with a guide telescopic rod 6, and the guide telescopic rod 6 is parallel to the piston rod of the jacking hydraulic cylinder 4; one section of the guiding telescopic rod 6 is fixed on the double-sided workbench 3, and the other end of the guiding telescopic rod is fixed with the lifting plate 5.

Specifically processing: two machine tool housing parts 9 are simultaneously clamped to the double-sided table 3 as shown in fig. 1. Then the servo driving mechanism drives the driving rotating shaft 2 to rotate to the position, so that the table top of the double-sided workbench 3 is enabled to be horizontal. The jacking hydraulic cylinder 4 above the double-sided workbench 3 upwards pushes the lifting plate 5, so that the machine tool box part 9 on the lifting plate 5 is positioned on a cutter station, and then the machining of the machine tool box part 9 can be completed. When it is desired to continue machining the hole in the side of the machine housing part 9, the double-sided table 3 is rotated 90 ° and the machining of the side of the machine housing part 9 can then begin. After the machine tool box part 9 above the double-sided workbench 3 is machined, the double-sided workbench 3 continues to rotate by 90 degrees, at this time, another machine tool box part 9 can continue to be machined according to the process, and the machine tool box part 9 which is machined is removed when the other machine tool box part 9 is machined. Thus, an alternate line production mode can be formed to improve the processing efficiency.

It should be noted that: when the table-board of the double-side workbench 3 is horizontal, the fixing structures can be started at the same time, and the main double-side workbench 3 is clamped by utilizing the notches of the fixing forks 11 of the two fixing structures as shown in fig. 2, so as to maintain the stability of the machine tool box body part 9 during processing and be a positioning mode. The vibration force generated by the brick of the machining center on the driving rotating shaft 2 is reduced, so that the machining center and the clamp are protected.

The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.