Pressing plate tool for low-pressure casting production of aluminum casting sand mold

Abstract

The utility model relates to the technical field of aluminum casting sand mold low-pressure casting, and discloses a pressing plate tool for aluminum casting sand mold low-pressure casting production, which comprises a fixing mechanism, a moving mechanism and a main body mechanism, the fixing mechanism is positioned inside the moving mechanism, the moving mechanism is positioned on the upper surface of the main body mechanism, the fixing mechanism comprises a clamping block, and the clamping block is positioned on the upper surface of the main body mechanism. The bottom of the clamping block is in threaded connection with a first lead screw, and the top end of the first lead screw is fixedly connected with a driven bevel gear. The clamping blocks are in threaded connection with the first lead screw, and the first lead screw is fixedly connected with the driven bevel gear, so that when the driven bevel gear rotates, the first lead screw can be driven to rotate, and then the clamping blocks in threaded connection with the first lead screw can move; and therefore, the four corners of the lower sand box can be fixed through the clamping blocks, the lower sand box can be effectively prevented from deviating in the production process, and the accuracy of the whole machining process is improved.

Description

Technical Field

[0001] This utility model relates to the field of sand casting technology for aluminum castings, and in particular to a pressure plate tooling for producing aluminum castings using sand casting. Background Technology

[0002] Cast aluminum parts are aluminum products manufactured through a casting process. Using aluminum as the main raw material, molten aluminum is injected into a specific mold cavity, and after cooling and solidification, it forms the desired shape. Cast aluminum parts have many advantages. Their relatively light weight makes them ideal for applications with weight restrictions, such as certain components in the aerospace industry. They also have good thermal conductivity, effectively transferring heat and are widely used in the manufacture of heat dissipation devices. In terms of appearance, various complex shapes can be manufactured using different molds to meet diverse design requirements. Furthermore, cast aluminum parts are relatively inexpensive and can be mass-produced, making them indispensable components in many industrial sectors such as automotive and machinery manufacturing.

[0003] In the process of producing cast aluminum parts, sandboxes are usually used to shape them. However, during the shaping process, deviations may occur when the sandboxes are joined, which may cause the formed aluminum parts to deform and thus affect the overall production efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pressure plate tooling for sand casting of aluminum parts.

[0005] This utility model is achieved by the following technical solution: a pressure plate tooling for sand casting of aluminum castings, comprising a fixing mechanism, a moving mechanism and a main body mechanism, wherein the fixing mechanism is located inside the moving mechanism and the moving mechanism is located on the upper surface of the main body mechanism;

[0006] The fixing mechanism includes a clamping block, the bottom of which is threadedly connected to a lead screw, and the top of which is fixedly connected to a driven bevel gear.

[0007] Through the above technical solution, the clamping block is threadedly connected to the lead screw, and the lead screw is fixedly connected to the driven bevel gear. When the driven bevel gear rotates, it can drive the lead screw to rotate, thereby allowing the clamping block threadedly connected to the lead screw to move. By setting four clamping blocks on the upper surface of the moving base, the four corners of the lower sand box can be fixed by these clamping blocks, thereby effectively preventing the lower sand box from shifting during the production process and increasing the accuracy of the overall processing.

[0008] As a further improvement to the above scheme, the outer wall of the driven bevel gear meshes with the driving bevel gear, and a worm gear is fixedly connected to the middle of the driving bevel gear.

[0009] Through the above technical solution, the driven bevel gear meshes with the driving bevel gear, and the driving bevel gear is fixedly connected to the worm gear. When the worm gear drives the driving bevel gear to rotate, the driving bevel gear can drive the driven bevel gear meshing with the outer wall to rotate as well, thereby enabling the internal moving components to operate normally and increasing the overall linkage of the equipment.

[0010] As a further improvement to the above solution, a worm is engaged with the outer wall of the worm gear, and a stepper motor is fixedly connected to the top end of the worm.

[0011] Through the above technical solution, the worm gear meshes with the worm, and the output end of the stepper motor is fixedly connected to the worm. Thus, the stepper motor can drive the worm to rotate. When the worm rotates, it can drive the worm gear meshing with the outer wall to rotate, thereby allowing the clamping block to move normally. Since the worm gear meshing transmission has a self-locking effect, when the clamping block moves to the appropriate position, the worm gear and worm self-lock, which can effectively prevent the clamping block from moving during the processing, thereby increasing the stability of the equipment in the production and processing process.

[0012] As a further improvement to the above solution, the moving mechanism includes a second stepper motor, the output end of which is fixedly connected to a second lead screw, and the outer wall of the second lead screw is threadedly connected to a moving base.

[0013] Through the above technical solution, the output end of the stepper motor 2 is fixedly connected to the lead screw 2, so that the stepper motor 2 can drive the lead screw 2 to rotate. When the lead screw 2 rotates, it can drive the movable base that is threaded to the outer wall to move linearly, thereby moving the lower sand box so that it can be away from the upper sand box when picking up the shaped aluminum parts. This can increase the operating space when picking up the parts, avoid the worker's hands from bumping into the upper sand box or the main body of the equipment, and increase the safety of the overall operation process.

[0014] As a further improvement to the above solution, a slider is fixedly connected to the bottom of the movable base, and a slide rail is slidably connected to the inner wall of the slider.

[0015] Through the above technical solution, the movable base is fixedly connected to the slider. The slider is set at the bottom of the movable base. When the movable base moves, it can drive the slider to slide on the outer wall of the slide rail. By setting the slider to slide on the outer wall of the slide rail, the slide rail can provide guidance for the movement of the slider and the movable base, and at the same time limit its movement range, thereby increasing the stability of the movable base when it moves.

[0016] As a further improvement to the above solution, the main structure includes a main base plate, and a main support is fixedly connected to the bottom of the main base plate.

[0017] Through the above technical solution, the main base plate is fixedly connected to the main support. By setting multiple main supports at the bottom of the main base plate, the equipment can be supported by the main supports, thereby increasing the overall stability of the equipment.

[0018] As a further improvement to the above solution, an installation bracket is fixedly connected to the upper surface of the main body base plate, a cylinder is fixedly connected to the top of the installation bracket, a moving plate is fixedly connected to the output end of the cylinder, an upper sand box is fixedly connected to the lower surface of the moving plate, and a lower sand box is snapped onto the outer wall of the upper sand box.

[0019] Through the above technical solution, the main base plate is fixedly connected to the mounting bracket, the mounting bracket is fixedly connected to the cylinder, and the output end of the cylinder is fixedly connected to the moving plate, so that the moving plate can be controlled to move up and down by the cylinder. The moving plate is fixedly connected to the upper sand box. When the moving plate moves, it can drive the upper sand box to move, so that it can overlap with the lower sand box, thereby increasing the automation level of the overall equipment.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention features a stepper motor whose output end is fixedly connected to a worm gear. The stepper motor drives the worm gear to rotate, which in turn drives a worm wheel meshing with the outer wall. The worm wheel is fixedly connected to a main bevel gear, which, when rotating, drives a driven bevel gear meshing with the outer wall. The driven bevel gear is fixedly connected to a lead screw, which, when rotating, drives the lead screw to rotate, allowing the threaded clamping block to move. Four clamping blocks on the upper surface of the movable base secure the four corners of the lower sand box, effectively preventing displacement during production and increasing overall processing accuracy. The worm wheel and worm gear transmit kinetic energy to the stepper motor. Because the worm wheel and worm gear meshing transmission has a self-locking effect, the worm wheel and worm gear self-lock when the clamping block moves to the appropriate position, effectively preventing movement during processing and increasing the stability of the equipment during production.

[0022] This invention features a stepper motor with a fixed connection to a lead screw, allowing the stepper motor to rotate the lead screw. When the lead screw rotates, it drives a movable base threaded to the outer wall to move linearly, thus moving the lower sandbox away from the upper sandbox when retrieving the shaped aluminum part. This increases the operating space during part retrieval. A slider is installed at the bottom of the movable base; when the movable base moves, the slider slides along the outer wall of a slide rail, providing guidance for the movement of both the slider and the movable base. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a side view of the overall structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0026] Figure 4 This is an anatomical diagram of the fixing mechanism of this utility model;

[0027] Figure 5 This is a schematic diagram of the main structure of the present invention.

[0028] Explanation of key symbols:

[0029] 1. Fixing Mechanism; 101. Clamping Block; 102. Lead Screw 1; 103. Driven Bevel Gear; 104. Driving Bevel Gear; 105. Worm Gear; 106. Worm; 107. Stepper Motor 1; 2. Moving Mechanism; 201. Stepper Motor 2; 202. Lead Screw 2; 203. Moving Base; 204. Slider; 205. Slide Rail; 3. Main Mechanism; 301. Main Base Plate; 302. Main Support; 303. Mounting Bracket; 304. Cylinder; 305. Moving Plate; 306. Upper Sand Box; 307. Lower Sand Box. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] Example:

[0032] Please combine Figure 1-5 The pressure plate tooling for sand casting of aluminum castings according to this embodiment includes a fixing mechanism 1, a moving mechanism 2 and a main body mechanism 3. The fixing mechanism 1 is located inside the moving mechanism 2, and the moving mechanism 2 is located on the upper surface of the main body mechanism 3.

[0033] The fixing mechanism 1 includes a clamping block 101, the bottom of which is threadedly connected to a lead screw 102, and the top of the lead screw 102 is fixedly connected to a driven bevel gear 103.

[0034] The driven bevel gear 103 is meshed with the driving bevel gear 104 on its outer wall, and a worm gear 105 is fixedly connected to the middle of the driving bevel gear 104.

[0035] The outer wall of the worm gear 105 is meshed with a worm 106, and the top end of the worm 106 is fixedly connected to a stepper motor 107.

[0036] The moving mechanism 2 includes a second stepper motor 201, the output end of the second stepper motor 201 is fixedly connected to a second lead screw 202, and the outer wall of the second lead screw 202 is threadedly connected to a moving base 203.

[0037] A slider 204 is fixedly connected to the bottom of the movable base 203, and a slide rail 205 is slidably connected to the inner wall of the slider 204.

[0038] The main structure 3 includes a main base plate 301, and a main support 302 is fixedly connected to the bottom of the main base plate 301.

[0039] A mounting bracket 303 is fixedly connected to the upper surface of the main base plate 301. A cylinder 304 is fixedly connected to the top of the mounting bracket 303. A movable plate 305 is fixedly connected to the output end of the cylinder 304. An upper sand box 306 is fixedly connected to the lower surface of the movable plate 305. A lower sand box 307 is snapped onto the outer wall of the upper sand box 306.

[0040] The implementation principle of the pressure plate tooling for low-pressure sand casting of aluminum castings in this embodiment is as follows: A worm gear 106 is fixedly connected to the output end of a stepper motor 107, thereby driving the worm gear 106 to rotate. When the worm gear 106 rotates, it drives the worm wheel 105, which meshes with the outer wall, to rotate. The worm wheel 105 is fixedly connected to a main bevel gear 104. When the main bevel gear 104 rotates, it drives the driven bevel gear 103, which meshes with the outer wall, to rotate as well. 103 is fixedly connected to lead screw 102. When driven bevel gear 103 rotates, it can drive lead screw 102 to rotate, thereby allowing the clamping block 101 threadedly connected to it to move. By setting four clamping blocks 101 on the upper surface of the movable base 203, the four corners of the lower sand box 307 can be fixed by these clamping blocks 101, thereby effectively preventing the lower sand box 307 from shifting during production and increasing the accuracy of the overall processing. The worm gear 105 and worm 106 transmit the kinetic energy of stepper motor 107. In the transmission process, the worm gear 105 and worm 106 meshing transmission have a self-locking effect. Therefore, when the clamping block 101 moves to the appropriate position, the worm gear 105 and worm 106 self-lock, which effectively prevents the clamping block 101 from moving during processing, thereby increasing the stability of the equipment during production and processing. By setting the output end of the stepper motor 201 to be fixedly connected to the lead screw 202, the stepper motor 201 can drive the lead screw 202 to rotate. When the lead screw 202 rotates, it can drive the movement connected to the outer wall thread. The movable base 203 moves linearly, thereby moving the lower sandbox 307 so that it can move away from the upper sandbox 306 when picking up the shaped aluminum parts, thus increasing the operating space when picking up the parts. A slider 204 is set at the bottom of the movable base 203. When the movable base 203 moves, it can drive the slider 204 to slide on the outer wall of the slide rail 205. Thus, the slide rail 205 can guide the movement of the slider 204 and the movable base 203, and at the same time limit its movement range, increasing the stability of the movable base 203 when moving.

[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A pressing plate tool for sand mold low pressure casting production of cast aluminum parts, characterized in that: Including fixed mechanism (1), moving mechanism (2) and main body mechanism (3), the fixed mechanism (1) is located in the inside of moving mechanism (2), moving mechanism (2) is located on the upper surface of main body mechanism (3); The fixed mechanism (1) includes a clamping block (101), the bottom of the clamping block (101) is threadedly connected with a lead screw (102), and the top end of the lead screw (102) is fixedly connected with a driven bevel gear (103).

2. The pressing plate tool for producing a sand mold of an aluminum casting part according to claim 1, characterized in that: The outer wall of the driven bevel gear (103) is engaged with a driving bevel gear (104), and the middle part of the driving bevel gear (104) is fixedly connected with a worm wheel (105).

3. The pressing plate tool for producing a sand mold of an aluminum casting part according to claim 2, characterized in that: The outer wall of the worm wheel (105) is engaged with a worm (106), and the top end of the worm (106) is fixedly connected with a stepper motor (107).

4. The pressing plate tool for producing a sand mold of an aluminum casting part according to claim 1, characterized in that: The moving mechanism (2) includes a stepper motor (201), and the output end of the stepper motor (201) is fixedly connected with a lead screw (202); the outer wall of the lead screw (202) is threadedly connected with a moving base (203).

5. The pressing plate tool for producing a sand mold of an aluminum casting part according to claim 4, characterized in that: The bottom of the moving base (203) is fixedly connected with a sliding block (204), and the inner wall of the sliding block (204) is slidably connected with a sliding rail (205).

6. The press plate tool for producing a sand mold of an aluminum casting part according to claim 1, wherein: The main body mechanism (3) includes a main body bottom plate (301), and the bottom of the main body bottom plate (301) is fixedly connected with a main body support (302).

7. The press plate tool for producing a sand mold of an aluminum casting part according to claim 6, characterized in that: The upper surface of the main body bottom plate (301) is fixedly connected with a mounting bracket (303), the top of the mounting bracket (303) is fixedly connected with an air cylinder (304), the output end of the air cylinder (304) is fixedly connected with a moving plate (305), the lower surface of the moving plate (305) is fixedly connected with an upper sand tank (306), and the outer wall of the upper sand tank (306) is clamped with a lower sand tank (307).

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