Steering gear shell die casting device

Abstract

The utility model relates to the technical field of steering gear shell die-casting, and discloses a steering gear shell die-casting device which comprises a rack, a die-casting machine body is fixedly installed at the top of the rack, a die head is fixedly installed at the output end of the die-casting machine body, a feeding conveyor is arranged on the left side of the rack, a cavity is formed in the rack, and the feeding conveyor is arranged in the cavity. A first bidirectional lead screw is driven by a motor to rotate, so that a front moving plate and a rear moving plate move relatively, a raw material plate is pushed by a positioning plate in the first moving plates, meanwhile, a second bidirectional lead screw rotates to enable a second moving plate on the right side to move, and the raw material plate is pushed by the positioning plate in the second moving plate; the raw material plate is pushed from three directions and positioned, and when the die head moves downwards for die casting, the die head can be pressed on the positioning plate, so that the positioning plate moves downwards to extrude the spring, and the positioning plate is prevented from hindering die casting of the raw material plate by the die head.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting of steering gear housings, and particularly relates to a die-casting device for steering gear housings. Background Technique

[0002] An automotive steering gear, also known as a steering machine or a steering gear, is the most important component in an automotive steering system. It is used to increase the force transmitted from the steering wheel to the steering transmission mechanism and change the direction of force transmission. For the mass production of automotive steering gear housings, die-casting is adopted. A set of die-casting molds is designed and developed, and blanks are produced by a die-casting machine, and then the important positions and important dimensions are processed by machine stamping.

[0003] The existing Chinese patent CN210305262U discloses a die-casting device for a housing of an automotive steering gear. The die-casting device for a housing of an automotive steering gear has two workstations that are centrosymmetric on the upper surface of a rotating tray and limit blocks on the workstations. It can not only ensure that the die-casting positions of each workpiece are consistent, reduce errors, but also perform the positioning and installation of the next block at the other end during die-casting, improving work efficiency and safety.

[0004] The limit blocks provided for limit setting in the above die-casting device for a housing of an automotive steering gear have the problem of preventing the die head from moving down for die-casting, and because the next limit block needs to be installed again during each die-casting, the labor cost is increased. Content of the Utility Model

[0005] The purpose of the utility model is to provide a die-casting device for a steering gear housing to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A die-casting device for a steering gear housing, including a frame. A die-casting machine main body is fixedly installed at the top of the frame. A die head is fixedly installed at the output end of the die-casting machine main body. A feeding conveyor is arranged on the left side of the frame. A cavity is opened inside the frame, and a positioning mechanism is arranged inside the cavity.

[0007] The positioning mechanism includes a through groove, a motor, and a first bidirectional lead screw. The through groove is opened on the placement surface of the frame. There are four through grooves, and the through grooves communicate with the cavity. The motor is fixedly installed on the back surface of the frame. The output end of the through groove is fixedly connected to the rear end of the first bidirectional lead screw. The first bidirectional lead screw is rotationally connected to the inner wall of the cavity through a bearing. A first bevel gear is fixedly installed on the outer wall of the first bidirectional lead screw. The first bevel gear meshes with a second bevel gear. A second bidirectional lead screw is fixedly installed on the inner wall of the second bevel gear. The end of the second bidirectional lead screw is rotationally connected to the inner wall of the cavity through a bearing. A first moving plate is sleeved on the outer wall of the first bidirectional lead screw. There are two first moving plates, which are symmetrically distributed front and back about the center of the first bidirectional lead screw. A second moving plate is sleeved on the outer wall of the second bidirectional lead screw. The first moving plate and the second moving plate are both slidably arranged in the through groove. Grooves are opened on the outer walls of the first moving plate and the second moving plate, and a positioning plate is slidably arranged in the groove. A sliding rod is slidably arranged in the inner wall of the positioning plate. The bottom end of the sliding rod is fixedly connected to the inner wall of the groove. A spring is fixedly installed at the bottom of the sliding rod. The bottom end of the spring is fixedly connected to the inner wall of the groove. The tops of the first moving plate and the second moving plate are flush with the placement surface of the frame.

[0008] Further, a third moving plate is sleeved on the outer wall of the second bidirectional lead screw. The third moving plate is slidably arranged in the through groove. The top of the third moving plate is flush with the placement surface of the frame. The third moving plate and the second moving plate are symmetrically distributed left and right about the center of the second bidirectional lead screw. A groove is also opened on the outer wall of the third moving plate, and a positioning plate is also slidably arranged in the groove. A sliding rod is also slidably arranged in the inner wall of the positioning plate. An inclined panel is fixedly installed on the outer wall of the positioning plate on the second moving plate. A trapezoidal plate is fixedly installed on the outer wall of the positioning plate on the third moving plate. The inclined surface on the trapezoidal plate fits with the inclined surface on the inclined panel.

[0009] Further, the feeding conveyor is higher than the placement surface of the frame. A first sliding plate is fixedly installed on the outer wall of the frame. The left end of the first sliding plate is flush with the right end of the feeding conveyor.

[0010] Further, a cylinder is fixedly installed on the back surface of the frame. A push plate is fixedly installed at the front end of the cylinder. The push plate faces the positioning plate on the first moving plate.

[0011] Further, an avoidance groove is opened at the top of the positioning plate on the first moving plate. The avoidance groove faces the push plate, and the inner diameter of the avoidance groove is larger than the outer diameter of the push plate.

[0012] Further, a discharging conveyor is arranged in front of the frame. The discharging conveyor is lower than the placement surface of the frame. A second sliding plate is fixedly installed on the front surface of the frame. The front end of the second sliding plate is flush with the rear end of the discharging conveyor.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. By driving the first bidirectional lead screw to rotate with a motor, the front and rear first moving plates move relatively, and then the positioning plate in the first moving plate pushes the raw material plate. At the same time, the second bidirectional lead screw rotates to make the right second moving plate move, so that the positioning plate in the second moving plate pushes the raw material plate. The raw material plate is pushed from three directions to position the raw material plate. When the die head moves down for die casting, the die head can press on the positioning plate, causing the positioning plate to move down and compress the spring, preventing the positioning plate from interfering with the die head for die casting of the raw material plate;

[0015] 2. A third moving plate is provided to set a positioning plate on the left side of the raw material plate, that is, to cooperate with the other three positioning plates to position the raw material plate from four sides of the raw material plate, improving the positioning accuracy. Since no spring is provided at the bottom of the positioning plate in the third moving plate, when the positioning plate in the third moving plate is in the original position, the positioning plate retracts into the third moving plate, that is, it will not interfere with the raw material plate sliding into the space among the four positioning plates;

[0016] 3. When the second bidirectional lead screw rotates to make the second moving plate and the third moving plate move relative to each other, the positioning plates in the second moving plate and the third moving plate drive the inclined panel and the trapezoidal plate to move respectively. As the inclined panel and the trapezoidal plate gradually approach, the inclined panel lifts the trapezoidal plate, and then lifts the positioning plate in the third moving plate, enabling the positioning plate in the third moving plate to contact the raw material plate. When the die head moves down and presses on the positioning plate, because the third moving plate in the second moving plate moves down, driving the inclined panel to move down, and then the positioning plate in the third moving plate can also be pressed down. Description of the Drawings

[0017] Figure 1 is a schematic structural view of the present utility model;

[0018] Figure 2 of the present utility model Figure 1 is a schematic structural view of the rear view;

[0019] Figure 3 is a schematic structural view of the frame and the positioning mechanism of the present utility model;

[0020] Figure 4 is a schematic structural view of the positioning mechanism of the present utility model;

[0021] Figure 5 is a schematic structural view of the second moving plate and the third moving plate of the present utility model;

[0022] Figure 6 is a schematic structural view of the exploded view of the second moving plate of the present utility model.

[0023] In the figure: 1. Frame; 2. Die casting machine main body; 3. Die head; 4. Feeding conveyor; 5. Positioning mechanism; 501. Through groove; 502. Motor; 503. First bidirectional lead screw; 504. First moving plate; 505. Positioning plate; 506. Spring; 507. Slide bar; 508. Second moving plate; 509. First bevel gear; 5010. Second bevel gear; 5011. Second bidirectional lead screw; 6. First slide plate; 7. Discharging conveyor; 8. Second slide plate; 9. Cylinder; 10. Pushing plate; 11. Avoidance groove; 12. Third moving plate; 13. Inclined panel; 14. Trapezoidal plate. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] Please refer to Figures 1-6 , the present invention provides a technical solution: a die casting device for a steering gear housing, including a frame 1, a die casting machine main body 2 is fixedly installed on the top of the frame 1, a die head 3 is fixedly installed at the output end of the die casting machine main body 2, a feeding conveyor 4 is arranged on the left side of the frame 1, a cavity is opened inside the frame 1, and a positioning mechanism 5 is arranged inside the cavity;

[0026] The positioning mechanism 5 includes a through groove 501, a motor 502, and a first bidirectional lead screw 503. The through groove 501 is formed on the placement surface of the frame 1. There are four through grooves 501, and the through groove 501 communicates with the cavity. The motor 502 is fixedly installed on the back surface of the frame 1. The output end of the through groove 501 is fixedly connected to the rear end of the first bidirectional lead screw 503. The first bidirectional lead screw 503 is rotationally connected to the inner wall of the cavity through a bearing. A first bevel gear 509 is fixedly installed on the outer wall of the first bidirectional lead screw 503. The first bevel gear 509 meshes with a second bevel gear 5010. A second bidirectional lead screw 5011 is fixedly installed on the inner wall of the second bevel gear 5010. The end of the second bidirectional lead screw 5011 is rotationally connected to the inner wall of the cavity through a bearing. A first moving plate 504 is sleeved on the outer wall of the first bidirectional lead screw 503. There are two first moving plates 504, which are symmetrically arranged front and back with respect to the center of the first bidirectional lead screw 503. A second moving plate 508 is sleeved on the outer wall of the second bidirectional lead screw 5011. The first moving plate 504 and the second moving plate 508 are both slidably arranged in the through groove 501. Grooves are formed on the outer walls of the first moving plate 504 and the second moving plate 508, and a positioning plate 505 is slidably arranged in the groove. A sliding rod 507 is slidably arranged in the inner wall of the positioning plate 505. The bottom end of the sliding rod 507 is fixedly connected to the inner wall of the groove. A spring 506 is fixedly installed at the bottom of the sliding rod 507. The bottom end of the spring 506 is fixedly connected to the inner wall of the groove. The tops of the first moving plate 504 and the second moving plate 508 are flush with the placement surface of the frame 1. The rotation of the first bidirectional lead screw 503 can drive the rotation of the second bidirectional lead screw 5011 through the transmission of the first bevel gear 509 and the second bevel gear 5010. The raw material plate is conveyed to the placement surface of the frame 1 by the feeding conveyor 4. The raw material plate slides under the action of inertia until it comes into contact with the positioning plate 505 on the second moving plate 508. The motor 502 drives the first bidirectional lead screw 503 to rotate, so that the two front and rear first moving plates 504 move relatively, and then the positioning plate 505 in the first moving plate 504 pushes the raw material plate. At the same time, the rotation of the second bidirectional lead screw 5011 makes the right second moving plate 508 move, so that the positioning plate 505 in the second moving plate 508 pushes the raw material plate. The raw material plate is pushed from three directions to position the raw material plate. When the die head 3 moves down for die casting, the die head 3 can press on the positioning plate 505, so that the positioning plate 505 moves down to compress the spring 506, avoiding the positioning plate 505 from interfering with the die casting of the raw material plate by the die head 3;

[0027] A moving plate three 12 is sleeved on the outer wall thread of the bidirectional lead screw two 5011. The moving plate three 12 is slidably arranged in the through groove 501. The top of the moving plate three 12 is flush with the placement surface of the frame 1. The moving plate three 12 and the moving plate two 508 are symmetrically distributed about the center of the bidirectional lead screw two 5011. A groove is also formed on the outer wall of the moving plate three 12, and a positioning plate 505 is also slidably arranged inside the groove. A sliding rod 507 is also slidably arranged on the inner wall of the positioning plate 505. An inclined panel 13 is fixedly installed on the outer wall of the positioning plate 505 on the moving plate two 508. A trapezoidal plate 14 is fixedly installed on the outer wall of the positioning plate 505 on the moving plate three 12. The inclined surface on the trapezoidal plate 14 is attached to the inclined surface on the inclined panel 13. The moving plate three 12 is provided for arranging the positioning plate 505 on the left side of the raw material plate, that is, cooperating with the other three positioning plates 505 to position the raw material plate simultaneously from the four sides of the raw material plate, improving the positioning accuracy. Because no spring 506 is arranged at the bottom of the positioning plate 505 in the moving plate three 12, when the positioning plate 505 in the moving plate three 12 is in the original position, the positioning plate 505 is retracted into the moving plate three 12, that is, it will not prevent the raw material plate from sliding into the space among the four positioning plates 505. When the bidirectional lead screw two 5011 rotates and the moving plate two 508 and the moving plate three 12 move relative to each other, the positioning plates 505 in the moving plate two 508 and the moving plate three 12 drive the inclined panel 13 and the trapezoidal plate 14 to move respectively. As the inclined panel 13 and the trapezoidal plate 14 gradually approach, the inclined panel 13 jacks up the trapezoidal plate 14, and then jacks up the positioning plate 505 in the moving plate three 12, so that the positioning plate 505 in the moving plate three 12 can contact the raw material plate. When the die head 3 moves down and presses on the positioning plate 505, because the moving plate three 12 in the moving plate two 508 moves down, driving the inclined panel 13 to move down, and then the positioning plate 505 in the moving plate three 12 can also be pressed down;

[0028] The feeding conveyor 4 is higher than the placement surface of the frame 1. A slide plate one 6 is fixedly installed on the outer wall of the frame 1. The left end of the slide plate one 6 is flush with the right end of the feeding conveyor 4, ensuring that the feeding conveyor 4 can convey the raw material plate to the placement surface of the frame 1 and enabling the raw material plate to have sufficient kinetic energy to slide to contact the positioning plate 505 on the moving plate two 508;

[0029] A cylinder 9 is fixedly installed on the back of the frame 1. A push plate 10 is fixedly installed at the front end of the cylinder 9. The push plate 10 faces the positioning plate 505 on the moving plate one 504. After die casting is completed and the die head 3 moves up, at this time, manually press the positioning plate 505, and then the cylinder 9 can be used to push the push plate 10 forward, thereby pushing out the die-cast workpiece;

[0030] A relief groove 11 is provided at the top of the positioning plate 505 on the first movable plate 504. The relief groove 11 faces the push plate 10, and the inner diameter of the relief groove 11 is larger than the outer diameter of the push plate 10. The provision of the relief groove 11 enables the positioning plate 505 in the front to be manually pressed down during material pushing.

[0031] A blanking conveyor 7 is provided in front of the frame 1. The blanking conveyor 7 is lower than the placement surface of the frame 1. A second slide plate 8 is fixedly installed on the front surface of the frame 1. The front end of the second slide plate 8 is flush with the rear end of the blanking conveyor 7. The provision of the second slide plate 8 enables the workpiece pushed out to slide onto the blanking conveyor 7 and then be conveyed away by the blanking conveyor 7.

[0032] Working principle: During use, the raw material plate is placed on the feeding conveyor 4. The feeding conveyor 4 conveys the raw material plate to the first slide plate 6. The raw material plate slides along the first slide plate 6 to the placement surface of the frame 1 until the raw material plate contacts the positioning plate 505 on the second movable plate 508. The motor 502 is started to drive the first bidirectional lead screw 503 to rotate. The rotation of the first bidirectional lead screw 503 drives the first bevel gear 509 to rotate, and then drives the second bevel gear 5010 to rotate. The rotation of the second bevel gear 5010 drives the second bidirectional lead screw 5011 to rotate. The rotation of the first bidirectional lead screw 503 causes the two front and rear first movable plates 504 to move relatively, and further causes the positioning plate 505 in the first movable plate 504 to push the raw material plate. At the same time, the rotation of the second bidirectional lead screw 5011 causes the right second movable plate 508 to move, so that the positioning plate 505 in the second movable plate 508 pushes the raw material plate. The raw material plate is pushed from three directions to position the raw material plate. When the die head 3 moves downward for die casting, the die head 3 can press on the positioning plate 505, causing the positioning plate 505 to move downward and compress the spring 506, preventing the positioning plate 505 from interfering with the die casting of the raw material plate by the die head 3.

[0033] Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Claims

1. A die-casting device for a steering gear housing, comprising a frame (1), a die-casting machine main body (2) is fixedly installed at the top of the frame (1), a die head (3) is fixedly installed at the output end of the die-casting machine main body (2), a feeding conveyor (4) is arranged on the left side of the frame (1), and it is characterized in that: A cavity is formed inside the frame (1), and a positioning mechanism (5) is arranged inside the cavity; The positioning mechanism (5) includes a through groove (501), a motor (502), and a first bidirectional lead screw (503). The through groove (501) is formed on the placement surface of the frame (1). There are four through grooves (501), and the through grooves (501) communicate with the cavity. The motor (502) is fixedly installed on the back surface of the frame (1). The output end of the through groove (501) is fixedly connected to the rear end of the first bidirectional lead screw (503). The first bidirectional lead screw (503) is rotatably connected to the inner wall of the cavity through a bearing. A first bevel gear (509) is fixedly installed on the outer wall of the first bidirectional lead screw (503). The first bevel gear (509) meshes with a second bevel gear (5010). A second bidirectional lead screw (5011) is fixedly installed on the inner wall of the second bevel gear (5010). The end of the second bidirectional lead screw (5011) is rotatably connected to the inner wall of the cavity through a bearing. A first moving plate (504) is sleeved on the outer wall of the first bidirectional lead screw (503). There are two first moving plates (504), which are symmetrically arranged before and after the center of the first bidirectional lead screw (503). A second moving plate (508) is sleeved on the outer wall of the second bidirectional lead screw (5011). The first moving plate (504) and the second moving plate (508) are both slidably arranged in the through groove (501). Grooves are formed on the outer walls of the first moving plate (504) and the second moving plate (508), and a positioning plate (505) is slidably arranged in the grooves. A slide bar (507) is slidably arranged on the inner wall of the positioning plate (505). The bottom end of the slide bar (507) is fixedly connected to the inner wall of the groove. A spring (506) is fixedly installed at the bottom of the slide bar (507). The bottom end of the spring (506) is fixedly connected to the inner wall of the groove. The tops of the first moving plate (504) and the second moving plate (508) are flush with the placement surface of the frame (1).

2. The die-casting device for a steering gear housing according to claim 1, characterized in that: A third moving plate (12) is sleeved on the outer wall of the second bidirectional lead screw (5011). The third moving plate (12) is slidably arranged in the through groove (501). The top of the third moving plate (12) is flush with the placement surface of the frame (1). The third moving plate (12) and the second moving plate (508) are symmetrically distributed about the center of the second bidirectional lead screw (5011). Grooves are also formed on the outer wall of the third moving plate (12), and a positioning plate (505) is also slidably arranged in the grooves. A slide bar (507) is also slidably arranged on the inner wall of the positioning plate (505). An inclined panel (13) is fixedly installed on the outer wall of the positioning plate (505) on the second moving plate (508). A trapezoidal plate (14) is fixedly installed on the outer wall of the positioning plate (505) on the third moving plate (12). The inclined surface on the trapezoidal plate (14) is attached to the inclined surface on the inclined panel (13).

3. A die-casting device for a steering gear housing according to claim 1, characterized in that: The feeding conveyor (4) is higher than the placement surface of the frame (1). A first slide plate (6) is fixedly installed on the outer wall of the frame (1), and the left end of the first slide plate (6) is flush with the right end of the feeding conveyor (4).

4. A die-casting device for a steering gear housing according to claim 1, characterized in that: A cylinder (9) is fixedly installed on the back of the frame (1), and a push plate (10) is fixedly installed at the front end of the cylinder (9). The push plate (10) faces the positioning plate (505) on the first moving plate (504).

5. A die-casting device for a steering gear housing according to claim 1, characterized in that: A relief groove (11) is formed at the top of the positioning plate (505) on the first moving plate (504). The relief groove (11) faces the push plate (10), and the inner diameter of the relief groove (11) is larger than the outer diameter of the push plate (10).

6. The die-casting device for a steering gear housing according to claim 1, characterized in that: A discharging conveyor (7) is arranged in front of the frame (1). The discharging conveyor (7) is lower than the placement surface of the frame (1). A second slide plate (8) is fixedly installed on the front of the frame (1), and the front end of the second slide plate (8) is flush with the rear end of the discharging conveyor (7).

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