A precision positioning mold for casting steering gear housing

Abstract

This utility model relates to the field of steering gear housing casting, specifically a precision positioning mold for steering gear housing casting, including a base plate, a mounting plate fixedly connected to the top of the base plate, a placement plate and two fixing columns fixedly connected to the top of the mounting plate, and a pressing mechanism on the top of the base plate. This utility model uses the operation of a first servo motor to drive a rotating ring block to rotate, achieving synchronous movement of multiple sliders and pressing plates. When two pressing plates move, they can cooperate with the other two pressing plates through an auxiliary pressing plate to clamp and position the two molds, reducing the gap between the two molds when connected by a connecting shaft, thus increasing the mold's precision. Simultaneously, liquid metal is injected into the mold through a feeding hopper, reducing the possibility of significant impact on the sand core when the liquid metal is poured into the mold.

Description

Technical Field

[0001] This utility model relates to the field of steering gear housing casting, specifically a precision positioning mold for steering gear housing casting. Background Technology

[0002] The steering gear housing is the external support and protection structure of the steering gear. It is usually made of metal and is used to house and fix the transmission components inside the steering gear. It also bears the forces and torques generated during steering to ensure the stable operation of the steering system. Steering gear housing casting refers to the process of melting metal materials, pouring them into a pre-designed mold, and then cooling and solidifying them to form a steering gear housing blank.

[0003] In existing technologies, the steering gear housing is an important external support and protective structure for the steering gear, effectively protecting it. Steering gear housings are typically manufactured using casting methods. This casting process employs specific molds, with sand cores added inside to solidify the housing. In most cases, the molds are connected by connecting shafts or other components. However, when connecting two molds via connecting shafts, gaps may exist between the molds and the shafts, reducing the mold's precision during use. Furthermore, when molten metal is added to the mold, it can easily collide with the sand core located at the top of the mold, further reducing the precision of the steering gear housing casting process. Utility Model Content

[0004] To overcome the shortcomings of existing technology, when two molds are connected by a connecting shaft, there may be a certain gap between the mold and the shaft, which reduces the accuracy of the mold during use. Furthermore, when liquid metal is added to the mold, it is easy to cause collision with the sand core located at the top of the mold, which further reduces the accuracy problem in the casting of steering gear housing. This utility model proposes a precision positioning mold for casting steering gear housing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a precision positioning mold for casting steering gear housing, including a base plate, an mounting plate fixedly connected to the top of the base plate, a placement plate and a fixing column fixedly connected to the top of the mounting plate, two fixing columns, a pressing mechanism on the top of the base plate, and a feeding mechanism on the top of the mounting plate.

[0006] The holding mechanism includes a fixed block, the bottom of which is fixedly connected to the top of the mounting plate. A slider is slidably connected to the inner cavity of the fixed block, and four sliders are provided. A first servo motor is fixedly connected to the top of the base plate. The output end of the first servo motor passes through the bottom of the mounting plate and is fixedly connected to a rotating ring block. An arc-shaped groove is formed on the top of the rotating ring block, and four arc-shaped grooves are provided. A sliding rod is fixedly connected to the top of each of the four sliders, and the surface of the sliding rod is slidably connected to the inner cavity of the arc-shaped groove. A first connecting plate is fixedly connected to the top of each of the four sliders. A holding plate is fixedly connected to one side of each of the four first connecting plates, and auxiliary components are provided on one side of two of the holding plates.

[0007] Preferably, the feeding mechanism includes a second connecting plate, and two second connecting plates are provided. The bottom of the second connecting plate is fixedly connected to the top of the fixed column. An L-shaped plate is fixedly connected to one side of each of the two second connecting plates. A connecting ring block is provided between one side of the two L-shaped plates. A rotating plate is slidably connected to the inner cavity of the connecting ring block. A feeding hopper is fixedly connected to the inner cavity of the rotating plate. A threaded groove is provided on one side of the connecting ring block. Multiple threaded grooves are provided. A connecting bolt is threadedly connected to the inner cavity of one of the threaded grooves. The surface of the connecting bolt is threadedly connected to the inner cavity of the rotating plate. A moving component is provided on the surface of the connecting ring block.

[0008] Preferably, the auxiliary component includes a spring, one side of which is fixedly connected to one side of the pressure plate, one end of which is fixedly connected to an auxiliary pressure plate, and one side of the auxiliary pressure plate is fixedly connected to a limit rod, the surface of which is slidably connected to the inner cavity of the pressure plate.

[0009] Preferably, a fixing rod is fixedly connected between the two L-shaped plates, and a screw is rotatably connected between the two L-shaped plates. A movable block is fixedly connected to the surface of the connecting ring block. Two movable blocks are provided. The inner cavity of one movable block is slidably connected to the surface of the fixing rod, and the inner cavity of the other movable block is threadedly connected to the surface of the screw. A second servo motor is fixedly connected to one side of one of the L-shaped plates. The output end of the second servo motor passes through one side of one of the L-shaped plates and is fixedly connected to one end of the screw.

[0010] Preferably, the inner cavity of the fixing block is fixedly connected to a limiting plate, and four limiting plates are provided. The bottom of each of the four sliders is provided with a sliding groove, and the surface of the limiting plate is slidably connected to the inner cavity of the sliding groove.

[0011] Preferably, a reinforcing base is fixedly connected to the bottom of the mounting plate, and a reinforcing plate is fixedly connected to one side of the placement plate.

[0012] Preferably, each of the four slide bars is fixedly connected to a limiting ring block, and the bottom of each of the four limiting ring blocks is movably connected to the top of the rotating ring block.

[0013] The advantages of this utility model are:

[0014] This invention utilizes a first servo motor to drive a rotating ring block, enabling synchronous movement of multiple sliders and pressure plates. Two pressure plates, during movement, cooperate with auxiliary pressure plates to clamp and position the two molds, reducing gaps between them when connected by a connecting shaft and increasing mold precision. Simultaneously, the hopper injects molten metal into the mold, minimizing impact on the sand core during pouring. This solves the problem of gaps between the mold and shaft when connected, which reduces mold precision and prevents collisions with the top-mounted sand core during molten metal addition, further compromising accuracy in steering gear housing casting. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the slide and placement plate of this utility model;

[0018] Figure 3 This is a cross-sectional view of the rotating ring block and the base plate of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the second servo motor and the second connecting plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the limiting ring block and the limiting rod of this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the limiting plate and the slide groove of this utility model.

[0022] In the diagram: 1. Base plate; 2. Mounting plate; 3. Placement plate; 4. Fixing column; 5. Holding mechanism; 501. Fixing block; 502. Slider; 503. First servo motor; 504. Rotating ring block; 505. Arc groove; 506. Slide rod; 507. First connecting plate; 508. Holding plate; 509. Auxiliary components; 5091. Spring; 5092. Auxiliary pressure plate; 5093. Limiting rod; 6. Feeder Structure; 601, Second connecting plate; 602, L-shaped plate; 603, Connecting ring block; 604, Rotating plate; 605, Feed hopper; 606, Threaded groove; 607, Connecting bolt; 608, Moving assembly; 6081, Screw; 6082, Second servo motor; 6083, Fixed rod; 6084, Moving block; 7, Reinforcing base; 8, Reinforcing plate; 9, Slide groove; 10, Limiting plate; 11, Limiting ring block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0025] This application discloses a precision positioning mold for casting steering gear housings. (Refer to...) Figure 1 and Figure 5 A precision positioning mold for casting a steering gear housing includes a base plate 1, a mounting plate 2 fixedly connected to the top of the base plate 1, a placement plate 3 and a fixing column 4 fixedly connected to the top of the mounting plate 2, two fixing columns 4 are provided, a pressing mechanism 5 is provided on the top of the base plate 1, and a feeding mechanism 6 is provided on the top of the mounting plate 2.

[0026] The holding mechanism 5 includes a fixed block 501, the bottom of which is fixedly connected to the top of the mounting plate 2. A slider 502 is slidably connected to the inner cavity of the fixed block 501. Four sliders 502 are provided. A first servo motor 503 is fixedly connected to the top of the base plate 1. The output end of the first servo motor 503 passes through the bottom of the mounting plate 2 and is fixedly connected to a rotating ring block 504. An arc-shaped groove 505 is provided on the top of the rotating ring block 504. Four arc-shaped grooves 505 are provided. A sliding rod 506 is fixedly connected to the top of each of the four sliders 502. The surface of the sliding rod 506 is slidably connected to the inner cavity of the arc-shaped groove 505. A first connecting plate 507 is fixedly connected to the top of each of the four first connecting plates 507. A holding plate 508 is fixedly connected to one side of each of the four holding plates 507. An auxiliary component 509 is provided on one side of each of the two holding plates 508.

[0027] The base plate 1 can install and fix the placement plate 3 and the fixing column 4 through the mounting plate 2. The top of the placement plate 3 can be used to place the mold for casting the steering gear housing. At the same time, the base plate 1 can install and fix the fixing block 501. The fixing block 501 can connect four sliders 502 at the same time. The first servo motor 503 installed on the top of the base plate 1 can smoothly drive the rotating ring block 504 to rotate during operation. The four sliders 502 can connect four sliding rods 506. The sliders 502 and the rotating ring block 504 correspond one-to-one. The number of arc grooves 505 and the number of sliding rods 506 are the same. The arc grooves 505 and the sliding rods 506 also correspond one-to-one.

[0028] Furthermore, when the rotating ring block 504 rotates, it can smoothly push the slide bar 506 through the arc groove 505. Through the connection between the slider 502 and the fixed block 501, it can effectively drive the four sliders 502 to move synchronously away from or towards the center of the rotating ring block 504. The sliders 502 can be installed and fixed to the pressure plate 508 through the first connecting plate 507. The pressure plate 508 can effectively clamp the mold placed on the top of the placement plate 3 synchronously and stably through the movement of the sliders 502. This makes it less likely that the gap between the two molds will shift significantly during use due to the connection through the connecting shaft. At the same time, since most molds are rectangular, the auxiliary component 509 can further improve the smoothness of mold clamping and positioning.

[0029] Reference Figure 2 and Figure 4The feeding mechanism 6 includes two second connecting plates 601. The bottom of the second connecting plates 601 is fixedly connected to the top of the fixed column 4. An L-shaped plate 602 is fixedly connected to one side of each of the two second connecting plates 601. A connecting ring block 603 is provided between the two L-shaped plates 602. A rotating plate 604 is slidably connected to the inner cavity of the connecting ring block 603. A feeding hopper 605 is fixedly connected to the inner cavity of the rotating plate 604. A threaded groove 606 is provided on one side of the connecting ring block 603. Multiple threaded grooves 606 are provided. A connecting bolt 607 is threadedly connected to the inner cavity of one of the threaded grooves 606. The surface of the connecting bolt 607 is threadedly connected to the inner cavity of the rotating plate 604. A moving component 608 is provided on the surface of the connecting ring block 603. The fixed column 4 can install and fix the L-shaped plate 602 through the second connecting plates 601.

[0030] Furthermore, the second connecting plate 601 is connected to the fixed column 4 by threaded components such as screws, which allows the second connecting plate 601 and the fixed column 4 to be disassembled or installed when needed. The connecting ring block 603 can be connected to the feed hopper 605 through the rotating plate 604. When it is necessary to pour the casting liquid metal into the mold, the liquid metal can be smoothly poured into the space between the two molds through the feed hopper 605, so that the liquid metal is less likely to cause a large collision with the top sand core when it is poured into the two molds. The connecting bolt 607 can connect the rotating plate 604 to different positions inside the connecting ring block 603 through the threaded groove 606, thereby realizing the adjustment of the angle and position of the discharge port of the feed hopper 605.

[0031] Reference Figure 2 and Figure 5The auxiliary component 509 includes a spring 5091, one side of which is fixedly connected to one side of the pressure plate 508. An auxiliary pressure plate 5092 is fixedly connected to one end of the spring 5091. A limit rod 5093 is fixedly connected to one side of the auxiliary pressure plate 5092. The surface of the limit rod 5093 is slidably connected to the inner cavity of the pressure plate 508. The two auxiliary components 509 have the same structure, so further details are omitted here. Both pressure plates 508 can serve to install and connect the spring 5091. When the two springs 5091 are connected to one side of the pressure plate 508, they rotate... The ring block 504 is arranged with its center facing each other, and the spring 5091 can connect to the auxiliary pressure plate 5092. When the two pressure plates 508 clamp the mold, the auxiliary pressure plate 5092 can first position the mold. Then, through the extension and retraction of the spring 5091, the auxiliary pressure plate 5092 can still be used smoothly when the remaining two pressure plates 508 continue to move to clamp and position the mold. At the same time, the setting of the limiting rod 5093 can effectively limit the use of the auxiliary pressure plate 5092, making it stable enough during use.

[0032] Reference Figure 3 and Figure 4 A fixing rod 6083 is fixedly connected between two L-shaped plates 602, and a screw 6081 is rotatably connected between the two L-shaped plates 602. A moving block 6084 is fixedly connected to the surface of the connecting ring block 603. Two moving blocks 6084 are provided. The inner cavity of one moving block 6084 is slidably connected to the surface of the fixing rod 6083, and the inner cavity of the other moving block 6084 is threadedly connected to the surface of the screw 6081. A second servo motor 6082 is fixedly connected to one side of one of the L-shaped plates 602. The output end of the second servo motor 6082 passes through one side of one of the L-shaped plates 602 and is fixedly connected to one end of the screw 6081. Two L-shaped plates 602 can cooperate to connect the screw 6081 and the fixed rod 6083. One of the moving blocks 6084 is connected to the screw 6081, and the other moving block 6084 is connected to the fixed rod 6083. Both moving blocks 6084 are connected to the surface of the connecting ring block 603, so that when the screw 6081 rotates, it can smoothly drive the connecting ring block 603, the rotating plate 604 and the feed hopper 605 to move, thereby further increasing the adjustable position of the feed hopper 605. The setting of the second servo motor 6082 makes it convenient for the operator to rotate the screw 6081.

[0033] Reference Figure 3 and Figure 6A limiting plate 10 is fixedly connected to the inner cavity of the fixed block 501. Four limiting plates 10 are provided. The bottom of each of the four sliders 502 is provided with a sliding groove 9. The surface of the limiting plate 10 is slidably connected to the inner cavity of the sliding groove 9. The setting of the limiting plate 10 and the sliding groove 9 can effectively limit the sliding of the slider 502, so that the slider 502 can slide more stably and smoothly when sliding inside the fixed block 501.

[0034] Reference Figure 1 and Figure 2 The bottom of the mounting plate 2 is fixedly connected to a reinforcing base 7, and one side of the placement plate 3 is fixedly connected to a reinforcing plate 8. The reinforcing base 7 can support and restrict the mounting plate 2, making the mounting plate 2 more stable and stable during use. The reinforcing plate 8 can reinforce the placement plate 3, making the placement plate 3 more stable when supporting and placing the two molds.

[0035] Reference Figure 5 Each of the four slide rods 506 has a fixedly connected limiting ring block 11. The bottom of each of the four limiting ring blocks 11 is movably connected to the top of the rotating ring block 504. The setting of the limiting ring block 11 can effectively increase the stability of the connection between the rotating ring block 504 and the four slide rods 506, so that the slide rods 506 can slide more stably inside the rotating ring block 504, and the rotating ring block 504 is not easy to slide off or fall off the surface of the slide rods 506.

[0036] Working Principle: In use, the operator first connects two molds via a connecting shaft. Then, the connected molds are placed on top of the placement plate 3. The operator then starts the first servo motor 503. The operation of the first servo motor 503 drives the rotating ring block 504 to rotate. During rotation, the four arc-shaped grooves 505 on the rotating ring block 504 push against the corresponding sliding rods 506, allowing the four sliding rods 506 to move synchronously. Through the connection between the sliding rods 506 and the slider 502, the slider 502 moves along with the machine. Simultaneously, the first connecting plate 507 and the pressure plate 508 fixed to the top of the slider 502 move synchronously. When the four pressure plates 508 move, two of them, when clamping the mold, can first position the mold using the auxiliary pressure plate 5092. By continuing to move, the spring 5091 will be compressed, and the remaining two pressure plates 508 can also be moved to fix and position the mold. At this time, the positioning and limiting effect of the two molds can be completed. After the molds are positioned and fixed, the operator can connect the second connecting plate 601 to the top of the fixed column 4 with screws or other threaded parts. Then, rotate the rotating plate 604 to adjust its position inside the connecting ring block 603 to change the position and angle of the discharge port of the feed hopper 605 during use. At the same time, the second servo motor 6082 can be started to drive the screw 6081 to rotate, which will drive the connecting ring block 603, rotating plate 604 and feed hopper 605 connected by the moving block 6084 to move as a whole, thereby accurately adjusting the discharge port of the feed hopper 605 to above the mold pouring port, so that the liquid metal can be smoothly injected into the mold and avoid impacting the sand core.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A precision positioning mold for steering gear housing casting, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to the mounting plate (2), the top of the mounting plate (2) is fixedly connected to the placement plate (3) and the fixing column (4), there are two fixing columns (4), the top of the base plate (1) is provided with a pressing mechanism (5), and the top of the mounting plate (2) is provided with a feeding mechanism (6). The pressing mechanism (5) includes a fixed block (501), the bottom of which is fixedly connected to the top of the mounting plate (2). A slider (502) is slidably connected to the inner cavity of the fixed block (501). Four sliders (502) are provided. A first servo motor (503) is fixedly connected to the top of the base plate (1). The output end of the first servo motor (503) passes through the bottom of the mounting plate (2) and is fixedly connected to a rotating ring block (504). The top of the rotating ring block (504) has an opening. There are four arc-shaped grooves (505). The top of each of the four sliders (502) is fixedly connected to a slide rod (506). The surface of the slide rod (506) is slidably connected to the inner cavity of the arc-shaped groove (505). The top of each of the four sliders (502) is fixedly connected to a first connecting plate (507). One side of each of the four first connecting plates (507) is fixedly connected to a pressure plate (508). Two of the pressure plates (508) are provided with auxiliary components (509) on one side.

2. A precision positioning mold for steering gear housing casting according to claim 1, characterized in that: The feeding mechanism (6) includes a second connecting plate (601), two of which are provided. The bottom of the second connecting plate (601) is fixedly connected to the top of the fixed column (4). An L-shaped plate (602) is fixedly connected to one side of each of the two second connecting plates (601). A connecting ring block (603) is provided between one side of the two L-shaped plates (602). A rotating plate (604) is slidably connected to the inner cavity of the connecting ring block (603). A feeding hopper (605) is fixedly connected to the inner cavity of the rotating plate (604). A threaded groove (606) is provided on one side of the connecting ring block (603). Multiple threaded grooves (606) are provided. A connecting bolt (607) is threadedly connected to the inner cavity of one of the threaded grooves (606). The surface of the connecting bolt (607) is threadedly connected to the inner cavity of the rotating plate (604). A moving component (608) is provided on the surface of the connecting ring block (603).

3. A precision positioning mold for steering gear housing casting according to claim 2, characterized in that: The auxiliary component (509) includes a spring (5091), one side of which is fixedly connected to one side of the pressure plate (508), and one end of the spring (5091) is fixedly connected to an auxiliary pressure plate (5092). A limit rod (5093) is fixedly connected to one side of the auxiliary pressure plate (5092), and the surface of the limit rod (5093) is slidably connected to the inner cavity of the pressure plate (508).

4. A precision positioning mold for steering gear housing casting according to claim 3, characterized in that: A fixing rod (6083) is fixedly connected between the two L-shaped plates (602), and a screw (6081) is rotatably connected between the two L-shaped plates (602). A moving block (6084) is fixedly connected to the surface of the connecting ring block (603). There are two moving blocks (6084). The inner cavity of one moving block (6084) is slidably connected to the surface of the fixing rod (6083), and the inner cavity of the other moving block (6084) is threadedly connected to the surface of the screw (6081). A second servo motor (6082) is fixedly connected to one side of one of the L-shaped plates (602). The output end of the second servo motor (6082) passes through one side of one of the L-shaped plates (602) and is fixedly connected to one end of the screw (6081).

5. A precision positioning mold for casting a steering gear housing according to claim 2, characterized in that: The inner cavity of the fixed block (501) is fixedly connected to a limiting plate (10), and four limiting plates (10) are provided. The bottom of each of the four sliders (502) is provided with a sliding groove (9), and the surface of the limiting plate (10) is slidably connected to the inner cavity of the sliding groove (9).

6. A precision positioning mold for casting a steering gear housing according to claim 3, characterized in that: The bottom of the mounting plate (2) is fixedly connected to a reinforcing base (7), and one side of the placement plate (3) is fixedly connected to a reinforcing plate (8).

7. A precision positioning mold for casting a steering gear housing according to claim 4, characterized in that: Each of the four slide bars (506) has a fixedly connected limiting ring block (11) on its surface, and the bottom of each of the four limiting ring blocks (11) is movably connected to the top of the rotating ring block (504).

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