阅读说明：本技术 一种卧式加工中心加工薄板类零件的保压真空吸盘治具 (Pressure maintaining vacuum chuck jig for machining thin plate parts by horizontal machining center ) 是由 马超 郑广文 于 2020-05-28 设计创作，主要内容包括：本发明是一种卧式加工中心加工薄板类零件的保压真空吸盘治具,包括真空吸附平台、密封圈、盖板、直通型小型球阀、压力表、衬套、定位销、基座；真空吸附平台通过螺栓和密封圈与盖板连接；真空吸附平台一个侧壁上安装有直通型小型球阀；真空吸附平台另一个侧壁上安装有压力表；通过定位销和衬套将真空吸附平台安装到基座上,然后采用螺钉将真空吸附平台与基座固定连接。本发明大大减少了装夹时间,装夹次数,实现机床的不间断运行,零件的连续加工提高了生产效率及产品质量。(The invention relates to a pressure maintaining vacuum chuck jig for processing sheet parts by a horizontal processing center, which comprises a vacuum adsorption platform, a sealing ring, a cover plate, a straight-through type small ball valve, a pressure gauge, a bushing, a positioning pin and a base, wherein the sealing ring is arranged on the vacuum adsorption platform; the vacuum adsorption platform is connected with the cover plate through a bolt and a sealing ring; a straight-through type small ball valve is arranged on one side wall of the vacuum adsorption platform; a pressure gauge is arranged on the other side wall of the vacuum adsorption platform; install the vacuum adsorption platform on the base through locating pin and bush, then adopt the screw with vacuum adsorption platform and base fixed connection. The invention greatly reduces the clamping time and times, realizes the uninterrupted operation of the machine tool, and improves the production efficiency and the product quality by continuously processing the parts.)

1. A pressure maintaining vacuum chuck jig for processing thin plate parts in a horizontal processing center is characterized by comprising a vacuum adsorption platform (1), a sealing ring (2), a cover plate (3), a straight-through type small ball valve (4), a pressure gauge (5), a bushing (6), a positioning pin (7) and a base (8);

the vacuum adsorption platform (1) is connected with the cover plate (3) through bolts and a sealing ring (2);

a straight-through type small ball valve (4) is arranged on one side wall of the vacuum adsorption platform (1); a pressure gauge (5) is arranged on the other side wall of the vacuum adsorption platform (1);

the vacuum adsorption platform (1) is installed on the base (8) through the positioning pin (7) and the bushing (6), and then the vacuum adsorption platform (1) is fixedly connected with the base (8) through screws.

2. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: the vacuum adsorption platform (1) is made of aluminum, is in a cuboid hollow structure, and has the characteristics of a positioning fine hole, a counter bore, a sealing groove, an air suction groove and an air suction hole on the front surface; the reverse side is a hollow structure, and the side surface is provided with a taper pipe threaded hole.

3. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: the sealing ring is made of silica gel and is installed in the sealing groove of the vacuum adsorption platform (1).

4. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: apron (3) material is aluminium, and the shape structure is cuboid board class, and there is the counter sink above the plane, and the hoist and mount screw hole uses 16M 8 screws with its rigid coupling to vacuum adsorption platform on (1).

5. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: the straight-through type small ball valve (4) is made of brass, and the handle is rotated to realize the opening and closing states and is screwed and connected to the side surface (1) of the vacuum adsorption platform.

6. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: the pressure gauge (5) is made of stainless steel, displays a pressure value and is fixedly connected to the side surface (1) of the vacuum adsorption platform.

7. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: the bushing (6) is fixed with the positioning hole on the vacuum adsorption platform (1) in an interference fit manner.

8. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: the positioning pin (7) is in clearance fit with the bushing (6) for positioning.

9. The pressure maintaining vacuum chuck jig for processing thin plate parts by the horizontal machining center according to claim 1, characterized in that: the base (8) is a horizontal machining center general square box, is made of high-strength aluminum alloy, is cuboid in shape, is provided with positioning holes and threaded holes on four sides, and is quickly assembled to complete a set of jig meeting the requirements.

Technical Field

The invention belongs to the technical field of machining sheet type fixtures, most of the prior sheet type parts are mechanically pressed by pressing plates and screws when being milled, and due to characteristic limitation of the parts, special pressing plates are required to be manufactured and limited when certain characteristics are machined, so that the clamping is complicated, the mass production is not facilitated, the production efficiency is greatly reduced, and the cost is increased. This tool does benefit to atmospheric pressure and replaces mechanical compression, can solve above-mentioned problem, and the clamping is quick, and stable in structure improves production efficiency greatly.

Background

The processing of thin plate parts is always a difficult point in machining, and due to the fact that supplied materials are of an equal-thickness plate structure, high feature precision needs to be finished in sequence, and high repeated positioning precision is required. If use the mechanical compact structure of clamp plate cooperation screw, complex operation reduces production efficiency, influences the product quality. The existing market has a sucker structure jig, and the defect is the possibility that parts are abnormal due to the instability of an air pressure source.

Disclosure of Invention

The invention aims to provide a pressure-maintaining vacuum suction disc jig for processing sheet parts by a horizontal processing center. The clamping device is pressed by using the atmospheric pressure difference, has stable structure and quick clamping, can realize the continuous operation of a horizontal machining center machine tool, and greatly improves the production efficiency and the product quality.

In order to achieve the purpose, the invention adopts the technical scheme that:

a pressure maintaining vacuum chuck jig for processing sheet parts by a horizontal processing center comprises a vacuum adsorption platform, a sealing ring, a cover plate, a straight-through type small ball valve, a pressure gauge, a bushing, a positioning pin and a base; the vacuum adsorption platform is connected with the cover plate through a bolt and a sealing ring; a straight-through type small ball valve is arranged on one side wall of the vacuum adsorption platform; a pressure gauge is arranged on the other side wall of the vacuum adsorption platform; the vacuum adsorption platform is installed on the base through the positioning pin and the bushing, and then the vacuum adsorption platform is fixedly connected with the base through the screw.

The invention has the beneficial effects that:

1. according to the invention, an atmospheric compression mode is used for replacing mechanical compression modes such as a pressing plate and a screw, so that the clamping time and the clamping times are greatly reduced, and the production efficiency and the product quality are improved.

2. The invention utilizes a 'suction pressing' mode of replacing the mode of always sucking air by the vacuum pump in a pressure maintaining vacuum atmospheric pressure difference pressing mode, avoids the infirm pressing force caused by the unstable air source of the vacuum pump, has more stable pressing mode, greatly improves the stability of the jig and improves the product quality.

3. The jig can be used independently without being connected with an air pipe, the using space and the using mode of the jig reach the maximization, the jig is installed on the base, free rotation of the horizontal machining center and mutual switching of the machine tables can be achieved, the function of the horizontal machining center is exerted to the maximization, uninterrupted operation of the machine tool is achieved, continuous machining of parts is achieved, and production efficiency is greatly improved.

Drawings

Fig. 1 is a front view of a vacuum adsorption platform.

Fig. 2 is a rear view of the vacuum adsorption platform.

Fig. 3 is a schematic view of a seal ring.

Fig. 4 is a schematic view of a cover plate.

Fig. 5 is a schematic view of a straight-through type small ball valve.

FIG. 6 is a schematic view of a pressure gauge.

Fig. 7 is a schematic view of a base.

FIG. 8 is a schematic view of the vacuum chuck, the sealing ring and the cover plate.

FIG. 9 is a schematic view of a straight-through type small ball valve and a pressure gauge connected to a vacuum suction platform.

Fig. 10 is an overall assembly schematic.

Fig. 11 is a schematic view of part clamping.

Detailed Description

The invention is described in detail with reference to the accompanying figures 1-11.

A pressure maintaining vacuum chuck jig for processing sheet parts in a horizontal processing center comprises a vacuum adsorption platform 1, a sealing ring 2, a cover plate 3, a straight-through type small ball valve 4, a pressure gauge 5, a bushing 6, a positioning pin 7 and a base 8; the vacuum adsorption platform 1 is connected with the cover plate 3 through bolts and a sealing ring 2; a straight-through type small ball valve 4 is arranged on one side wall of the vacuum adsorption platform 1; a pressure gauge 5 is arranged on the other side wall of the vacuum adsorption platform 1; the vacuum adsorption platform 1 is installed on the base 8 through the positioning pin 7 and the bushing 6, and then the vacuum adsorption platform 1 is fixedly connected with the base 8 through screws.

The vacuum adsorption platform 1 is made of aluminum, is in a cuboid hollow structure, and is characterized in that a positioning fine hole, a counter bore, a sealing groove, an air suction groove and an air suction hole are formed in the front surface; the reverse side is a hollow structure, and the side surface is provided with a taper pipe threaded hole.

The sealing ring is made of silica gel and is arranged in the sealing groove of the vacuum adsorption platform 1.

The material of apron 3 is aluminium, and the shape structure is cuboid board class, and there is the counter sink above the plane, and hoist and mount screw hole uses 16M 8 screws with its rigid coupling to vacuum adsorption platform on 1.

The through type small ball valve 4 is made of brass, and the handle is rotated to realize the opening and closing state and is screwed and connected to the side surface 1 of the vacuum adsorption platform.

The pressure gauge 5 is made of stainless steel, displays a pressure value and is fixedly connected to the side surface 1 of the vacuum adsorption platform.

The bushing 6 is fixed with the positioning hole on the vacuum adsorption platform 1 in an interference fit manner.

The positioning pin 7 is in clearance fit with the bushing 6 for positioning.

The base 8 is the general square chest of horizontal machining center, and the material is high strength aluminum alloy, and the shape is the cuboid, and the four sides has locating hole and screw hole, and one set of tool that accords with the demand is accomplished in quick assemblage.

The method comprises the steps of placing thin plate parts above a vacuum adsorption platform, opening a through type small ball valve, utilizing a vacuum pump to pump the vacuum adsorption platform into a vacuum state, observing that the numerical value of a pressure gauge reaches a negative value, closing the through type small ball valve to enable the interior of the through type small ball valve to be always in the vacuum state, and utilizing atmospheric pressure difference to adsorb and compress the thin plate parts onto the vacuum adsorption platform.