CN205464276U - Bimodulus board squeeze casting machine - Google Patents

Abstract

A double-platen squeeze casting machine, comprising a mold clamping device, a mold clamping cylinder, a movable platen, a large bar, a mold shifting cylinder, a fixed platen, a T-slot, a T-slot bolt and a base, the mold clamping device includes a mold clamping cylinder, The first lock nut, long screw, steel plate and second lock nut, mold clamping cylinder including mold clamping piston and mold clamping cylinder, mold clamping cylinder including mold clamping piston sleeve and mold clamping cylinder, mold transfer cylinder including mold transfer piston and mold shifting cylinder body, the utility model removes the tail plate in the three-plate toggle-link squeeze casting machine, only contains the movable platen and the fixed platen, and the shortened fuselage not only reduces the floor area of the equipment, but also improves the double The overall rigidity and running stability of the template squeeze casting machine are not only suitable for the squeeze casting of light metals such as aluminum and magnesium alloys, but also suitable for the squeeze casting of other metals. The simplified structure of the double template squeeze casting machine improves the mold clamping speed and clamping efficiency.

Description

A double-plate squeeze casting machine

technical field

The utility model relates to the technical field of extrusion casting, in particular to a double-plate extrusion casting machine.

Background technique

Referring to Fig. 1, the three-plate toggle-toggle-rod squeeze casting machine includes a head plate 1, a mold 2, a middle plate 3, a locking cylinder 4, a tail plate 5, and a toggle-link device 6. Bending and stretching complete the mold opening and closing action of the mold 2 and lock the mold 2 in the straightened state, and the reliability of the locking mainly depends on the stiffness of the toggle link device 6 and the large bar. The toggle link device 6 The opening and closing action of the mold is driven by the locking cylinder 4, and its locking is completed by the toggle linkage device 6, which realizes hydraulic mold opening and closing and mechanical locking, so it is customarily called a three-plate die-casting machine.

The disadvantage of the three-plate toggle-link squeeze casting machine is that the locking position is required to be precise. The mold 2 can only be effectively locked when the toggle link 6 is fully extended to the dead point. The first is the complex structure, many parts, waste of raw materials during manufacturing, the second is that there are many wearing parts in use and the maintenance cost is high, and the third is that the force of the large bar is uneven, so that the quality of the pressed product cannot be fully guaranteed.

For molds of different thicknesses, it is necessary to accurately adjust the front and rear positions of the head plate 1 and the middle plate 3. If the mold 2 is replaced frequently, this adjustment method is cumbersome and time-consuming. If the mold is heated and expanded during production, it will also cause stress on the large bar. Circumstances change. In addition, when the thickness of the mold 2 deviates at the four locking positions and the four locking nuts cannot be adjusted individually, it will cause uneven force on the large bar.

Contents of the invention

In order to solve the above problems, the utility model designs a double-platen squeeze casting machine. The double-platen squeeze casting machine adopts the clamping device and the clamping oil cylinder to replace the toggle linkage mechanism, and the movable parts are significantly reduced, and the lubricating parts are significantly reduced. , the whole equipment has low wear, low maintenance cost, high efficiency, and the simplified structure improves the mold clamping speed and mold clamping efficiency.

In order to realize the above-mentioned purpose of the invention, the utility model adopts the following technical solutions:

A double-platen squeeze casting machine, the double-platen squeeze casting machine uses a mold, the mold is divided into a convex mold and a concave mold, and the double-platen squeeze casting machine includes a mold clamping device, a mold clamping oil cylinder, a movable platen, a large bar, The features of the utility model are as follows:

The clamping device is equipped with a clamping oil cylinder, a first locking nut, a long screw, a steel plate and a second locking nut. The clamping oil cylinder is equipped with a clamping piston and a clamping cylinder body. A mold-closing piston sleeve and a mold-closing cylinder are configured, and the mold-moving cylinder is equipped with a mold-moving piston and a mold-moving cylinder;

Fix the fixed template to one end of the base, and two mold-moving cylinders with the same structure are installed on the diagonal positions of the upper and lower sides of the fixed template, and the mold-moving pistons matching the mold-moving cylinders are connected to the upper and lower sides of the movable template. On the diagonal positions of the two sides, the die is fixed at the center of the fixed template through T-slots and T-slot bolts, and the punch is fixed at the center of the movable template through T-slots and T-slot bolts. The convex die is also facing the concave die, and there are several vertical T-slots and horizontal T-slots on the opposite surfaces of the fixed template and the movable template, and the vertical T-slots between the vertical T-slots The spacing is equal and corresponding, and the spacing between the left and right horizontal T-shaped grooves is also equal and corresponding. There are four large bars with the same diameter connected at the four corners of the fixed formwork and the movable formwork. It is fixedly connected, and the four large bars are slidingly connected at the movable template. The four large bars are provided with ring teeth on the outer surface of the end of the movable template. The mold clamping piston sleeve arranged in each mold clamping cylinder is sleeved on the large bar, and the protruding end of each mold clamping piston sleeve is connected with the clamping device. The mold clamping device is equipped with an inner semicircular arc shape The first lock nut, the upper and lower two long screws passing through the first lock nut are respectively connected to the second lock nut in the shape of an inner semi-arc, and the ring teeth are also arranged in the inner semi-arc shape, the first lock nut The inner semicircular arc of the nut and the inner semicircular arc of the second locking nut can be wrapped on the ring teeth, and the two long screws are respectively connected and fixed on the steel plate, and the outer side of the steel plate is fixed to the clamping cylinder body, and the clamping cylinder The matching mold locking piston passes through the steel plate and is connected to the middle part of the first lock nut.

Owing to adopt above-mentioned technical scheme, the utility model produces following advantage:

1. The tail plate in the three-plate toggle-link squeeze casting machine is removed, and only the movable platen and the fixed platen are included. The shortened fuselage not only reduces the floor space of the equipment, but also improves the workshop capacity and output rate, and also It can improve the overall rigidity and running stability of the equipment, and is beneficial to the precision control of castings.

2. The mold can be locked at any position within the allowable mold thickness range, and there is no precise requirement for the locking position. As long as the locking oil pressure reaches the specified value, the mold can be locked to the required mold clamping force, and the mold can be closed. The force is uniform and the locking is reliable, which eliminates the influence of the mold thickness variation on the clamping force.

3. Four independent clamping cylinders are used to lock the four large bars separately, even if there is a certain non-parallelism between the installation plane or parting surface of the movable template and the fixed template, the locking force of each large bar can be guaranteed They are completely equal, since the inner arc surface of the lock nut and the outer surface of the large bar protruding from the movable template end are both annular teeth, so when the lock nut hugs the large bar and bites and locks, the locking force can also be made along the axial direction of the large bar. Evenly distributed.

4. The die-moving cylinder is used to directly drive the movable platen to open and close the mold, and the running speed is fast, so the cycle time of die-casting can be shortened and the operating efficiency of the entire squeeze casting machine can be improved.

5. The mold-moving cylinder adopts a diagonal arrangement, and the mold-moving cylinder is installed on the fixed template diagonally. The mold-moving piston pushes or pulls the movable template diagonally to perform reciprocating motion, so that when the movable template moves, the rapid mold-moving cylinder offsets the movement of the movable template. The generated torque achieves the force balance effect.

Description of drawings

Figure 1 is a schematic diagram of the structure of a three-plate toggle-link squeeze casting machine.

Fig. 2 is a schematic diagram of a three-dimensional structure of a double-plate squeeze casting machine.

Fig. 3 is a left side view of Fig. 2 .

Fig. 4 is a partial sectional schematic diagram of the clamping cylinder and the clamping device.

Fig. 5 is a schematic diagram of the structure of the clamping device.

In the above figure: 1-head plate; 2-mold; 3-middle plate; 4-lock cylinder; 5-tail plate; 6-toggle connecting rod device; 7-mold clamping device; 9-mold clamping cylinder; 10-moving template; 11-big bar; 12-moving piston; 13-fixed template; 14-moving cylinder; 15-T-slot; 16-T-slot bolt; 17-th A locking nut; 18-locking piston; 19-long screw; 20-locking cylinder; 21-steel plate; 22-the second locking nut.

detailed description

The utility model relates to a double-platen squeeze casting machine. The double-platen squeeze casting machine removes the tail plate in the three-plate toggle-link squeeze casting machine, and only contains a movable platen and a fixed platen, and the shortening of the fuselage is reduced The footprint of the equipment is reduced, and the overall rigidity and operation stability of the equipment can also be improved. It is not only suitable for squeeze casting of light metals such as aluminum and magnesium alloys, but also suitable for squeeze casting of other metals.

In conjunction with Fig. 2-5, the technical scheme of the utility model is as follows:

The double-platen squeeze casting machine includes a mold clamping device 7, a mold clamping cylinder, a movable platen 10, a large bar 11, a mold-moving cylinder, a fixed platen 13, a T-slot 15, a T-slot bolt 16 and a base, and the double-platen squeeze casting The machine uses mold 2, and mold 2 is divided into convex mold and concave mold.

The clamping device 7 is equipped with a clamping oil cylinder, a first locking nut 17, a long screw 19, a steel plate 21 and a second locking nut 22, and the clamping oil cylinder is equipped with a clamping piston 18 and a clamping cylinder body 20. The mold clamping cylinder is equipped with a mold clamping piston sleeve 8 and a mold clamping cylinder 9, and the mold moving cylinder is equipped with a mold moving piston 12 and a mold moving cylinder 14, a mold locking piston 18 and a mold locking cylinder 20 , Clamping piston sleeve 8 and clamping cylinder 9 and moving mold piston 12 and moving mold cylinder 14 are used in pairs.

Fix the fixed template to one end of the base, and two mold-moving cylinders with the same structure are installed on the diagonal positions of the upper and lower sides of the fixed template, and the mold-moving pistons matching the mold-moving cylinders are connected to the upper and lower sides of the movable template. At the diagonal positions on both sides, the movable template can move left and right on the base to face the movable template through two mold-moving pistons, and the die is fixed to the center of the fixed template through T-shaped slots and T-slot bolts. The punch is fixed at the center of the movable template through T-shaped slots and T-slot bolts, the punch is also facing the concave mold, and several vertical T-shaped bars are distributed on the opposite surfaces of the fixed template and the movable template. The spacing between the slots and the horizontal T-slots, and the vertical T-slots are equal and corresponding, and the spacing between the left and right horizontal T-slots is also equal; between the fixed template and the moving Four large bars with the same diameter are connected to the four corners of the formwork. The four large bars are fixedly connected at the fixed formwork, and the four large bars are slidingly connected at the movable formwork. The four large bars are outside the end of the movable formwork. The surface is provided with ring teeth, and the end of each big bar protruding from the movable template is connected with a mold clamping cylinder, and the mold clamping piston sleeve configured in each mold clamping cylinder is sleeved on the big bar, The protruding end of the piston sleeve is connected with the clamping device. It is recommended to connect with the first lock nut in the clamping device. The upper and lower two long screws passing through the first lock nut are respectively connected to the second lock nut in the shape of an inner semi-circular arc, and the ring teeth are also arranged in the inner semi-arc shape, the first lock nut and the second lock nut The shape and structure are roughly the same but the installation direction is opposite. The inner semicircle arc of the first lock nut and the inner semicircle arc of the second lock nut can be wrapped on the ring teeth, and the two long screws are respectively connected and fixed on the steel plate. , the outside of the steel plate fixes the clamping cylinder, and the clamping piston matched with the clamping cylinder passes through the steel plate and is connected to the middle part of the first locking nut.

In the above technical scheme:

The structural design of the clamping cylinder, the clamping cylinder and the mold transfer cylinder can refer to the conventional design, but the pressure or pulling force required to be distributed to each cylinder should be determined according to the design requirements of the double-plate squeeze casting machine. Certainly, if the double-platen squeeze casting machine is serialized according to tonnage, the pressure or pulling force required for distribution to each oil cylinder can also be serialized, which is obvious to those skilled in the art, and this is also an unresolved aspect of the present invention. One of the reasons for limiting the pressure value for each cylinder.

The annular teeth provided on the outer surface of the four large bars protruding from the end of the movable template are completely matched and engaged with the annular teeth provided by the inner semicircular arc of the first lock nut and the inner semicircular arc of the second lock nut. There is no special requirement for the tooth shape of the ring tooth, and it is suggested that the rectangular tooth is better.

The structure of the utility model is simple, and its action requirements and effects are referred to the above five advantages, and will not be described in detail.

Claims (1)

1. a double-template extrusion casting machine, this double-template extrusion casting machine uses mould (2), mould (2) is divided into punch and die, double-template extrusion casting machine includes clamping apparatus (7), die cylinder, moving platen (10), big thick stick (11), mould shifting oil cylinder, solid plate (13), T-slot (15), T slot bolt (16) and pedestal, it is characterized in that:

Clamping apparatus (7) is configured with Mode-locking oil cylinder, the first locking nut (17), long spiro nail (19), steel plate (21) and the second locking nut (22); described Mode-locking oil cylinder is configured with locking piston (18) and locked mode cylinder body (20); described die cylinder is configured with closing piston set (8) and matched moulds cylinder body (9), described mould shifting oil cylinder is configured with shifting formwork piston (12) and shifting formwork cylinder body (14)；

nullSolid plate (13) is fixed on described pedestal one end，It is each equipped with, on the diagonal position of solid plate (13) two sides up and down, two shifting formwork cylinder bodies (14) that structure is identical，The shifting formwork piston (12) matched with shifting formwork cylinder body (14) is then connected on the diagonal position of moving platen (10) two sides up and down，Described die is fixed on solid plate (13) center position by T-slot (15) and T slot bolt (16)，Described punch is fixed on moving platen (10) center position by T-slot (15) and T slot bolt (16)，Described punch is also facing described die，Several T-slot (15) of the most vertical several T-slot (15) and left and right horizontal it are distributed with on the opposite face of solid plate (13) and moving platen (10)，The most vertical spacing between several T-slot (15) is equal correspondence，Spacing between several T-slot (15) of left and right horizontal is also equal correspondence，Couple at solid plate (13) with the corner symmetry of moving platen (10) and have the big thick stick (11) that four diameters are identical，Four big thick sticks (11) are fixedly connected at solid plate (13) place，Four big thick sticks (11) are slidably connected at moving platen (10) place，Four big thick sticks (11) are provided with annular tooth stretching out the outer surface that moving platen (10) holds，Every big thick stick (11) is stretched out moving platen (10) and is held the matched moulds cylinder body (9) that has all been connected and fixed，In each matched moulds cylinder body (9), the closing piston set (8) of configuration is then socketed on big thick stick (11)，External part each closing piston set (8) all couples with clamping apparatus (7)，Clamping apparatus (7) is configured with first locking nut (17) of interior semicircle arcuation，Second locking nut (22) of semicircle arcuation in coupling respectively through two long spiro nails (19) up and down of the first locking nut (17)，It is also equipped with described annular tooth in described interior semicircle arcuation，The interior semi arch of the first locking nut (17) and the interior semi arch of the second locking nut (22) can be wrapped in described annular tooth，Two long spiro nails (19) are connected and fixed respectively on steel plate (21)，Locked mode cylinder body (20) is fixed in the outside of steel plate (21)，The locking piston (18) matched with locked mode cylinder body (20) is then through the middle part being connected in the first locking nut (17) after steel plate (21).