CN210080663U

CN210080663U - Lower die core structure for machining steering pump support assembly

Info

Publication number: CN210080663U
Application number: CN201922397843.0U
Authority: CN
Inventors: 顾银明; 陈益挺
Original assignee: Ningbo Yinrun Auto Parts Co Ltd
Current assignee: Ningbo Yinrun Auto Parts Co Ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-02-18
Anticipated expiration: 2029-12-27

Abstract

The utility model relates to a lower mold core structure of processing steering pump support assembly, including lower mold core, lower mold core upper end middle part be provided with support shaping die cavity, the sprue has been arranged in the left side of this lower mold core, the rear end of support shaping die cavity be connected with semi-annular link cavity, semi-annular link cavity in insert and have back core-pulling piece, the preceding terminal surface of core-pulling piece is the shaping inclined plane after this, the middle part on shaping inclined plane be provided with semi-circular platelike shaping portion, below one side that this shaping inclined plane is located shaping portion is provided with the runner breach, lower mold core be located semi-annular link cavity one side and be provided with the cinder ladle, be provided with between this cinder ladle and the runner breach and be connected the runner. The utility model has the characteristics of simple structure, production efficiency are high, guarantee steering pump support assembly's quality etc.

Description

Lower die core structure for machining steering pump support assembly

Technical Field

The utility model relates to the technical field of mold, especially, relate to a lower die core structure of processing steering pump support assembly.

Background

A steering pump support assembly is a structure for connecting a power steering pump and an engine, and is used for fixing the power steering pump and bearing frequent impact load. Steering pump support assembly comprises support main part, semi-ring shape link and two stabilizer blades, and wherein the semi-ring shape link is the most difficult fashioned, in order to ensure that the mould can produce the steering pump support assembly that the structure is comparatively complicated, needs reasonable in design's runner, exhaust and cinder ladle setpoint to accomplish the product shaping.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a lower core structure of processing steering pump support assembly is provided, have characteristics such as simple structure, production efficiency height, assurance steering pump support assembly's quality.

The utility model provides a technical scheme that its technical problem adopted is: the lower die core structure comprises a lower die core, wherein a support forming die cavity is arranged in the middle of the upper end of the lower die core, a sprue is arranged on the left side of the lower die core, a semi-annular connecting frame cavity is connected to the rear end of the support forming die cavity, a plurality of main runners are arranged between the sprue outlet and the support forming die cavity of the lower die core, an auxiliary runner is arranged between one main runner and the semi-annular connecting frame cavity, the depth of the main runner is greater than that of the auxiliary runner, a rear core block is inserted into the semi-annular connecting frame cavity, the front end face of the rear core block is a forming inclined plane, a semicircular plate-shaped forming part is arranged in the middle of the forming inclined plane, a runner notch is arranged on one side of the forming inclined plane below the forming part, and a slag ladle is arranged on one side of the semi-annular connecting frame cavity of the lower die core, a connecting runner is arranged between the slag ladle and the runner gap.

As right technical scheme the end that the lower mould core is located the cinder ladle be provided with the air discharge runner, pass through the air discharge runner with the gas in the cinder ladle, reduce defects such as the produced bubble of semicircular link lower part shaping simultaneously.

As right technical scheme a supplement, lower die core upper end be located the both sides of support shaping die cavity front end and inserted left core piece and right core piece respectively. The left supporting leg is formed through the left core-pulling block, and the right supporting leg is formed through the right core-pulling block.

As right technical scheme a supplement, the lower terminal surface of connection runner be supplementary inclined plane, this supplementary inclined plane is located the coplanar with the shaping inclined plane, the width of connection runner grow gradually from bottom to top. The lower end face of the connecting runner is an inclined plane, so that required ejection force is relatively small when waste materials in the connecting runner are ejected, the auxiliary inclined plane and the forming inclined plane are located on the same plane, and molten liquid is conveyed to the connecting runner from a runner notch of the forming inclined plane conveniently and exhaust is performed conveniently.

As right technical scheme a supplement, the rear end of back core-pulling block be connected with the take-up housing, the guide rail is installed to the both sides of this take-up housing, the take-up housing slide along the guide rail, the slip direction and the shaping inclined plane of take-up housing perpendicular.

As right technical scheme a supplementary, the rear of guide rail upper end be provided with first slope, the rear of take-up housing upper end be provided with the second slope, the slope on this second slope is located the coplanar with the slope on first slope. The lower end of the upper die frame is provided with a downward slope, the rear end of the lower die frame is provided with an obliquely arranged oil cylinder, and a piston rod of the oil cylinder controls the forming part to be inserted into the cavity of the semi-annular connecting frame before die assembly. If the forming part is not inserted in place, the lower slope can press the second slope of the slider seat in the die assembly process, so that the slope surface of the second slope and the slope surface of the first slope are located on the same plane, and the forming part can be inserted in place by the slider seat.

The direction limiting words such as front, back, left, right, up and down are described on the basis of the using state of the die, the left and right correspond to two sides of the length direction of the lower die core, and the front and back correspond to two sides of the width direction of the lower die core.

Has the advantages that: the utility model relates to a lower die core structure of processing steering pump support assembly has following several advantages:

1. after the rear core pulling block is inserted into the cavity of the semi-annular connecting frame, the forming inclined plane of the rear core pulling block blocks the rear end of the cavity of the semi-annular connecting frame, one side of the forming inclined plane, which is positioned below the forming part, is provided with a runner notch, molten liquid is conveyed to a connecting runner from the runner notch and exhausted, and the molten liquid in the cavity of the semi-annular connecting frame is continuously increased from bottom to top, so that the semi-annular connecting frame is relatively firm, meanwhile, the bottom of the semi-annular connecting frame cannot generate defects of air holes, air bubbles and the like, and the quality of a product is improved;

2. the lower end surface of the connecting flow channel is an inclined surface, so that the required ejection force is relatively small when the waste in the connecting flow channel is ejected, the auxiliary inclined surface and the forming inclined surface are positioned on the same plane, and the molten liquid is conveniently conveyed to the connecting flow channel from the flow channel notch of the forming inclined surface and the air is conveniently exhausted;

3. if the forming part is not inserted in place, the lower slope of the lower die frame can extrude the second slope of the sliding block seat in the die closing process, so that the slope surface of the second slope and the slope surface of the first slope are located on the same plane, the forming part can be inserted in place by the sliding block seat, and the arrangement of the first slope and the second slope can ensure that the forming part is in place;

4. the structure is simple, the production efficiency is high, and the quality of the steering pump bracket assembly is ensured;

5. the degree of depth of sprue is greater than the degree of depth of auxiliary flow way, and the junction of auxiliary flow way and sprue can form the step like this, can effectively reduce the impact of melting liquid to auxiliary flow way and semi-annular link chamber, adds auxiliary flow way simultaneously, can accelerate the shaping of whole product, reduces the temperature difference of each position of product.

Drawings

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

fig. 2 is a schematic structural view of the lower mold core of the present invention;

fig. 3 is a partial structural schematic diagram of the present invention;

fig. 4 is a schematic structural view of the processed product of the present invention.

The figure is as follows: 1. the mold comprises a lower mold core, 2, a sprue spreader, 3, a left core-pulling block, 4, a right core-pulling block, 5, a rear core-pulling block, 6, a main runner, 7, an auxiliary runner, 8, a semi-annular connecting frame cavity, 9, a connecting runner, 10, a cinder ladle, 11, an exhaust runner, 12, a support molding mold cavity, 13, a molding part, 14, a runner notch, 15, a guide rail, 16, a first slope, 17, a slider seat, 18, a second slope, 19, a molding slope, 20, a support main body, 21, a semi-annular connecting frame, 22, a support leg, 23 and an oil cylinder.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

The utility model relates to a lower die core structure for processing a steering pump bracket assembly, as shown in figures 1-4, comprising a lower die core 1, a bracket forming die cavity 12 is arranged in the middle of the upper end of the lower die core 1, a sprue 2 is arranged on the left side of the lower die core 1, a semi-annular connecting frame cavity 8 is connected with the rear end of the bracket forming die cavity 12, a plurality of main runners 6 are arranged between the outlet of the sprue 2 and the bracket forming die cavity 12 of the lower die core 1, an auxiliary runner 7 is arranged between one main runner 6 and the semi-annular connecting frame cavity 8, the depth of the main runner 6 is larger than that of the auxiliary runner 7, a rear core-pulling block 5 is inserted into the semi-annular connecting frame cavity 8, the front end surface of the rear core-pulling block 5 is a forming inclined surface 19, the middle part of the forming inclined surface 19 is provided with a semi-circular plate-shaped forming part 13, a runner gap 14 is arranged at one side of the forming inclined plane 19 below the forming part 13, a slag ladle 10 is arranged at one side of the lower die core 1 in the semi-annular connecting frame cavity 8, and a connecting runner 9 is arranged between the slag ladle 10 and the runner gap 14. The degree of depth of sprue 6 is greater than the degree of depth of auxiliary runner 7, and the junction of auxiliary runner 7 and sprue 6 can form the step like this, can effectively reduce and melt the impact of liquid to auxiliary runner 7 and semi-annular link chamber 8, adds auxiliary runner 7 simultaneously, can accelerate the shaping of whole product, reduces the temperature difference of each position of product.

Fig. 1 is a basic view in a front view direction, and directional qualifiers such as front, back, left, right, upper, lower, and the like are described based on the position of the mold in use, where the left and right correspond to the two sides of the lower mold core 1 in the length direction, and the front and back correspond to the two sides of the lower mold core 1 in the width direction.

The utility model discloses the product of processing is steering pump support assembly, and this steering pump support assembly comprises support subject 20, semi-annular link 21 and two stabilizer blades 22.

The bottom of the semi-circular connecting frame 21 is the most difficult to form, i.e. the area circled in fig. 4. Half annular link cavity 8 rear end is open, after back core pulling block 5 inserts in half annular link cavity 8, half annular link cavity 8 rear end is plugged up to back core pulling block 5's shaping inclined plane 19, shaping inclined plane 19 is located shaping portion 13 below one side and is provided with runner breach 14, from runner breach 14 toward connecting runner 9 and carrying and melt liquid and exhaust, along with the continuous from bottom to top increase of melting liquid in half annular link cavity 8, it is more durable to obtain half annular link 21 like this, half annular link 21's bottom can not produce the gas pocket simultaneously, defects such as bubble, the quality of product has been improved. And the molding inclined plane 19 and the runner notch 14 belong to vulnerable parts, and the molding inclined plane and the runner notch are concentrated on the rear core-pulling block 5 and are replaced periodically, so that the service life of the die can be effectively prolonged.

The lower mold core 1 is provided with an exhaust runner 11 at the tail end of the slag ladle 10, so that gas in the slag ladle passes through the exhaust runner 11, and the defects of bubbles and the like generated by molding the lower part of the semi-annular connecting frame 21 are reduced.

The left core-pulling block 3 and the right core-pulling block 4 are respectively inserted into two sides of the upper end of the lower mold core 1, which are positioned at the front end of the support molding mold cavity 12. An oil cylinder 23 for controlling the right core-pulling block 4 to slide transversely is arranged on the right side of the lower die frame, and one side of the left core-pulling block 3 is controlled to slide transversely through an inclined guide post. The left leg 22 is shaped by the left core back block 3 and the right leg 22 is shaped by the right core back block 4.

The lower end face of the connecting runner 9 is an auxiliary inclined plane, the auxiliary inclined plane and the forming inclined plane 19 are located on the same plane, and the width of the connecting runner 9 is gradually increased from bottom to top. The lower end surface of the connecting runner 9 is an inclined surface, so that when the waste material in the connecting runner 9 is ejected, the required ejection force is relatively small, the auxiliary inclined surface and the forming inclined surface 19 are positioned on the same plane, and the molten liquid is conveniently conveyed from the runner notch 14 of the forming inclined surface 19 to the connecting runner 9 and exhausted.

The rear end of the rear core-pulling block 5 is connected with a sliding block seat 17, guide rails 15 are installed on two sides of the sliding block seat 17, the sliding block seat 17 slides along the guide rails 15, the sliding direction of the sliding block seat 17 is perpendicular to a forming inclined plane 19, and the rear core-pulling block 5 can be well separated from a product.

A first slope 16 is arranged behind the upper end of the guide rail 15, a second slope 18 is arranged behind the upper end of the slider seat 17, and the slope surface of the second slope 18 and the slope surface of the first slope 16 are positioned on the same plane. The lower end of the upper die frame is provided with a downward slope, the rear end of the lower die frame is provided with an obliquely arranged oil cylinder 23, and before die assembly, a piston rod control forming part 13 of the oil cylinder 23 is inserted into the semi-annular connecting frame cavity 8. If the forming part 13 is not inserted in place, the downward slope presses the second slope 18 of the slider seat 17 in the mold closing process, so that the slope surface of the second slope 18 and the slope surface of the first slope 16 are located on the same plane, the slider seat 17 can insert the forming part 13 in place, and the arrangement of the first slope 16 and the second slope 18 can ensure that the forming part 13 is in place.

Claims

1. The utility model provides a lower mold core structure of processing steering pump support assembly, includes lower mold core (1), its characterized in that: the mold comprises a lower mold core (1), a support molding mold cavity (12) is arranged in the middle of the upper end of the lower mold core (1), a sprue (2) is arranged on the left side of the lower mold core (1), a semi-annular connecting frame cavity (8) is connected to the rear end of the support molding mold cavity (12), a plurality of main flow channels (6) are arranged between the sprue (2) outlet of the lower mold core (1) and the support molding mold cavity (12), an auxiliary flow channel (7) is arranged between one main flow channel (6) and the semi-annular connecting frame cavity (8), the depth of the main flow channel (6) is greater than that of the auxiliary flow channel (7), a rear core-pulling block (5) is inserted into the semi-annular connecting frame cavity (8), the front end face of the rear core-pulling block (5) is a molding inclined face (19), a semicircular molding part (13) is arranged in the middle of the molding inclined face (19), and a flow channel notch (14) is arranged on one side, below the molding inclined face, the lower mold core (1) is provided with a slag ladle (10) on one side of the semi-annular connecting frame cavity (8), and a connecting flow channel (9) is arranged between the slag ladle (10) and the flow channel gap (14).

2. The lower die core structure for processing the steering pump bracket assembly according to claim 1, wherein: and an exhaust runner (11) is arranged at the tail end of the lower mold core (1) positioned at the slag ladle (10).

3. The lower die core structure for processing the steering pump bracket assembly according to claim 1, wherein: the upper end of the lower mold core (1) is positioned at the two sides of the front end of the support molding mold cavity (12) and is respectively inserted with a left core-pulling block (3) and a right core-pulling block (4).

4. The lower die core structure for processing the steering pump bracket assembly according to claim 1, wherein: the lower end face of the connecting runner (9) is an auxiliary inclined face, the auxiliary inclined face and the forming inclined face (19) are located on the same plane, and the width of the connecting runner (9) is gradually increased from bottom to top.

5. The lower die core structure for processing the steering pump bracket assembly according to claim 1, wherein: the rear end of the rear core-pulling block (5) is connected with a sliding block seat (17), guide rails (15) are installed on two sides of the sliding block seat (17), the sliding block seat (17) slides along the guide rails (15), and the sliding direction of the sliding block seat (17) is perpendicular to the forming inclined plane (19).

6. The lower die core structure for processing the steering pump bracket assembly according to claim 5, wherein: a first slope (16) is arranged behind the upper end of the guide rail (15), a second slope (18) is arranged behind the upper end of the sliding block seat (17), and the slope surface of the second slope (18) and the slope surface of the first slope (16) are located on the same plane.