CN103978184B - A kind of semisolid four direction squeeze casting mould of compressor scroll plate - Google Patents

Abstract

A semi-solid four-direction extrusion casting mold for scroll disks for compressors, including five parts: extrusion device, fixed mold device, horizontal movable mold device, vertical movable mold device, and scroll disk horizontal push-out device, of which the fixed mold The extrusion device is installed inside the device. The fixed die device is surrounded by a horizontal movable die device, and above the fixed die device is a vertical movable die device. After preheating the mold device, clamping the mold, pressurizing, maintaining the pressure, and opening the mold, the semi-solid four-direction extrusion casting of the scroll is completed. The scroll prepared by the present invention has high dimensional accuracy and mechanical properties. Good, high efficiency, low cost and other advantages.

Description

A semi-solid four-direction squeeze casting mold for a compressor scroll

technical field

The invention belongs to the technical field of metal semi-solid squeeze casting, and in particular relates to a semi-solid four-direction squeeze casting mold for a scroll disk of a compressor.

Background technique

The scroll is one of the core parts of the scroll compressor for automotive air-conditioning refrigeration. It is usually obtained by machining the precision blank. Therefore, the manufacturing technology of the scroll blank has become an important factor affecting the forming quality of the scroll. factor.

The traditional scroll blank is obtained by direct machining. Due to the low production efficiency, low-pressure casting, liquid die forging, hot die forging, back pressure forming, etc. have been developed. Among them, low-pressure casting can ensure the complex shape of parts. requirements, good dimensional accuracy, low cost and high production efficiency, but the mechanical properties of the formed parts are not good, there are pores and shrinkage cavities, and heat treatment cannot be carried out; liquid die forging formed parts can be heat treated and have good mechanical properties, but the mold life is short , low production efficiency; hot die forging parts have less cutting amount and good mechanical properties, but the mold forming load is large, the mold life is short, the production efficiency is low and the cost is high; the back pressure forming parts have good mechanical properties, high production efficiency and long mold life High advantages, but the mold structure is complex and difficult to process.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a semi-solid four-direction squeeze casting mold for the scroll disk of a compressor, which can produce high dimensional accuracy and mechanical Scroll blanks with good performance, high efficiency and low cost.

In order to achieve the above object, the present invention takes the following technical solutions:

A semi-solid four-direction extrusion casting mold for scroll disks for compressors, including extrusion device I, fixed mold device II, horizontal movable mold device III, vertical movable mold device IV, and scroll horizontal push-out device V The fixed die device Ⅱ is equipped with an extrusion device Ⅰ that cooperates with it. The fixed die device Ⅱ is surrounded by a horizontal movable die device Ⅲ, above the fixed die device Ⅱ is a vertical movable die device Ⅳ, and the horizontal movable die device Ⅲ The outer side is connected to the scroll horizontal ejection device V, and the prepared semi-solid billet is put into the cavity formed by the extrusion device I and the fixed mold device II, and then the vertical movable mold device IV is lowered to close the mold; then, Push the extrusion device I for semi-solid low-pressure filling and solidification under pressure; then, pull the horizontal movable mold device III to split the mold, and the formed scroll blank 16 is broken from the middle and followed by the horizontal movable mold device III. At the same time, the movement of the scroll blank 16 will be pushed by the scroll horizontal push-out device V, and finally forced to leave the horizontal movable mold device III; when the scroll blank 16 is separated from the horizontal movable mold device III, by changing the scroll The assembly state of the rotary disc horizontal push-out device V increases the distance of the horizontal movable mold device III; finally, the horizontal movable mold device III is pulled apart again and the vertical movable mold device IV is raised to take out the scroll disc. Formed parts.

The fixed mold device II includes a mold base 10, the upper side of the mold base 10 is equipped with a mold lower pad 9, the upper side of the mold lower pad 9 is connected with a scroll middle block 13, and the scroll middle block 13 is equipped with a scroll Turntable steel sleeve 11.

The extrusion device I includes a bearing pad plug rod 12, which is used to complete the extrusion casting of the semi-solid billet of the scroll disc and the extrusion action of the formed scroll disc blank 16, and the bearing pad plug rod 12 is reserved There are countersunk holes and screws fixedly connected with the piston rod of the hydraulic cylinder of the multi-directional extruder.

The horizontal moving mold device III includes scroll horizontal side blocks 3 in four directions, each horizontal side block 3 of the scroll is connected with a mold horizontal push plate 8, and the mold horizontal push plate 8 is reserved with Countersunk holes and screws for the fixed connection of the piston rod of the hydraulic cylinder of the multi-directional extrusion machine.

The vertical movable mold device IV includes the upper side block 2 of the scroll disk, the upper side of the upper side block 2 of the scroll disk is fixedly connected with the vertical mold push plate 1, and the vertical mold push plate 1 is reserved with multi-directional The countersunk hole and screw that the piston rod of the hydraulic cylinder of the extrusion machine is fixed to.

Said scroll disk horizontal push-out device V includes four ejector rods 14, the outer end of each ejector rod 14 is supported on the horizontal side top plate 4, and there are ejection control rods 5 in the through holes at the two ends of the horizontal side top plate 4, and the ejection control The other end of the rod 5 is pushed against the ejector block 7, and the ejector block 7 is placed on the right ejector block supporting plate 6 or the left ejector block supporting plate 15, the right ejector block supporting plate 6, and the left ejector block supporting plate 15 Through holes and screws fixedly connected with the cylinder wall of the hydraulic cylinder of the multi-directional extruder are reserved on the top.

Compared with the prior art, the present invention provides a semi-solid four-direction squeeze casting mold for scrolls used in compressors, which can produce high dimensional accuracy, good mechanical properties, and high efficiency through the extrusion casting of semi-solid metals. , Low cost scroll blank.

Description of drawings

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

FIG. 2 is a top sectional view of FIG. 1 .

Fig. 3 is a schematic diagram of a three-dimensional structure of the present invention.

FIG. 4 is a schematic structural view of the middle block 13 of the scroll disk.

FIG. 5 is a schematic structural view of the horizontal side block 3 of the scroll disk.

FIG. 6 is a structural schematic diagram of four scroll blanks 16 in one scroll mold.

FIG. 7 is a cross-sectional view of four scroll blanks 16 in one scroll mold.

FIG. 8 is a front view of four scroll blanks 16 in one scroll mold.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, a semi-solid four-direction extrusion casting mold for a compressor scroll, including an extrusion device I, a fixed mold device II, a horizontal movable mold device III, a vertical movable mold device IV and a scroll horizontal There are five parts of ejection device Ⅴ, in which the fixed die device Ⅱ is installed with the extrusion device Ⅰ, the fixed die device Ⅱ is surrounded by the horizontal movable die device Ⅲ, the upper part of the fixed die device Ⅱ is the vertical movable die device Ⅳ, and the horizontal The outer side of the movable mold unit III is connected with the horizontal scroll ejection unit V.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the fixed mold device II includes a mold base 10, the upper side of the mold base 10 is equipped with a mold lower cushion block 9, and the upper side of the mold lower cushion block 9 is connected with a middle scroll disc. Block 13, scroll disk The middle block 13 is equipped with a scroll disk steel sleeve 11 inside.

Referring to Fig. 1, Fig. 6, Fig. 7 and Fig. 8, the extrusion device I includes a bearing bush plug rod 12, which is used to complete the extrusion casting of the semi-solid billet of the scroll disc and the formed scroll disc blank 16 The extruding action, and the countersunk hole and the screw that are fixedly connected with the piston rod of the hydraulic cylinder of the multi-directional extruder are reserved on the bearing bush plug rod 12.

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 5, the horizontal movable mold device III includes scroll horizontal side blocks 3 in four directions, and the outside of each scroll horizontal side block 3 is connected with a mold horizontal push plate 8, and the horizontal push plate 8 of the mold is reserved with a countersunk hole and a screw fixedly connected with the piston rod of the hydraulic cylinder of the multi-directional extrusion machine.

Referring to Figure 1 and Figure 3, the vertical movable mold device IV includes a scroll upper side block 2, the upper side of the scroll upper side block 2 is fixedly connected with a mold vertical push plate 1, and the mold vertical push plate 1 A countersunk hole and a screw fixedly connected with the piston rod of the hydraulic cylinder of the multi-directional extruder are reserved on the top.

Referring to Fig. 1, Fig. 2 and Fig. 3, the said scroll horizontal push-out device V includes fifteen ejector pins 14, the outer end of each ejector pin 14 is supported on the horizontal side top plate 4, and the through holes at both ends of the horizontal side top plate 4 There is an ejection control rod 5 in the middle, and the other end of the ejection control rod 5 is pushed on the ejector block 7, and the ejector block 7 is placed on the right ejector block supporting plate 6 or the left ejector block supporting plate 15, and the right ejector block The supporting plate 6 and the left ejector block supporting plate 15 are reserved with through holes and screws fixedly connected with the cylinder wall of the hydraulic cylinder of the multi-directional extruder.

The working principle of the present invention is: firstly, preheat the mold device to a reasonable temperature range, then rapidly raise the vertical movable mold device IV to a certain height, and put the prepared semi-solid billet into the extrusion device I and the fixed mold In the cavity formed by device II, the vertical movable mold device IV is then lowered to close the mold; then, the extrusion device I is pushed to perform semi-solid low-pressure filling and pressure-holding solidification; then, the horizontal movable mold device III is pulled apart for mold splitting , then the formed scroll blank 16 will be broken from the middle and move along with the horizontal movable mold device III. Detach from the horizontal movable mold device III; when the scroll blank 16 is separated from the horizontal movable mold device III, the ejector block 7 and the ejector control rod 5 can be removed, and the outward distance of the horizontal movable mold device III will increase; finally, Then the horizontal movable mold unit III can be pulled apart again and the vertical movable mold unit IV can be raised, so as to take out the formed part of the scroll.

Claims (6)

1. the semisolid four direction squeeze casting mould of a compressor scroll plate, comprise pressurizing unit I, fixed mold device II, press horizontal mobile die device III, vertical moving mold device IV and horizontal ejecting device V 5 major part of scroll plate, it is characterized in that: wherein fixed mold device II inside is provided with the pressurizing unit I be mated together, fixed mold device II surrounding is press horizontal mobile die device III, it is vertical moving mold device IV above fixed mold device II, outside press horizontal mobile die device III, ejecting device V horizontal in scroll plate is connected, and ready semi-solid blank is put into the die cavity that pressurizing unit I and fixed mold device II form, then the vertical moving mold device IV that declines carries out matched moulds, then, promote pressurizing unit I and carry out semi-solid low pressure filling and pressurize is solidified, then, pull open press horizontal mobile die device III and carry out parting, the scroll plate blank (16) be then shaped will be pulled off from centre and follow press horizontal mobile die device III and move, the movement of scroll plate blank (16) simultaneously will be subject to the promotion of the horizontal ejecting device V of scroll plate, and is finally forced to depart from press horizontal mobile die device III, treat that scroll plate blank (16) departs from press horizontal mobile die device III, by changing the confined state of the horizontal ejecting device V of scroll plate, the distance that press horizontal mobile die device III is outwards pulled open increases, finally, then again pull open press horizontal mobile die device III and upwards vertical moving mold device IV, thus take out the drip molding of scroll plate.

2. the semisolid four direction squeeze casting mould of a kind of compressor scroll plate according to claim 1, it is characterized in that: described fixed mold device II comprises mold base (10), mold base (10) upside is equipped with mould lower cushion block (9), mould lower cushion block (9) upside is connected with scroll plate intermediate mass (13), and scroll plate intermediate mass (13) mounted inside has scroll plate steel bushing (11).

3. the semisolid four direction squeeze casting mould of a kind of compressor scroll plate according to claim 1, it is characterized in that: described pressurizing unit I comprises bearing shell stopper rod (12), be used for being shaped to the extrusion casint of the semi-solid blank of scroll plate and action has been extruded to the scroll plate blank (16) be shaped, and bearing shell stopper rod (12) being reserved with the counter sink and screw that are connected with the piston rod of multidirectional extruder hydraulic cylinder.

4. the semisolid four direction squeeze casting mould of a kind of compressor scroll plate according to claim 1, it is characterized in that: described press horizontal mobile die device III comprises the horizontal lateral mass of scroll plate (3) on four direction, the horizontal lateral mass of each scroll plate (3) outside is connected with die horizontal push pedal (8), and die horizontal push pedal (8) is reserved with the counter sink and screw that are connected with the piston rod of multidirectional extruder hydraulic cylinder.

5. the semisolid four direction squeeze casting mould of a kind of compressor scroll plate according to claim 1, it is characterized in that: described vertical moving mold device IV comprises scroll plate upper block (2), scroll plate upper block (2) upside is fixed with the vertical push pedal of mould (1), and the vertical push pedal of mould (1) is reserved with the counter sink and screw that are connected with the piston rod of multidirectional extruder hydraulic cylinder.

6. the semisolid four direction squeeze casting mould of a kind of compressor scroll plate according to claim 1, it is characterized in that: the horizontal ejecting device V of described scroll plate comprises four push rods (14), each push rod (14) outer end withstands on horizontal side top board (4), control lever (5) is ejected in the through hole at horizontal side top board (4) two ends, ejecting control lever (5) other end withstands on push rod block (7), push rod block (7) is placed on right push rod block supporting plate (6) or left push rod block supporting plate (15), right push rod block supporting plate (6), left push rod block supporting plate (15) is reserved with the through hole and screw that are connected with multidirectional extruder hydraulic cylinder barrel.