CN113146442A

CN113146442A - Sand removing device for automobile castings

Info

Publication number: CN113146442A
Application number: CN202110226600.XA
Authority: CN
Inventors: 蔡涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-01
Filing date: 2021-03-01
Publication date: 2021-07-23

Abstract

The invention relates to an automobile casting sand removal device, which comprises a working box body, wherein the center of the bottom of the box body is provided with a plurality of first springs, the tops of the springs are provided with supporting plates, the end parts of two sides of each supporting plate are provided with pulleys, the top of each supporting plate is provided with a clamp for casting, two side walls of the box body are symmetrically provided with first air cylinders, the output ends of the first air cylinders are fixedly connected with chutes, the side walls of the box body are also symmetrically provided with chutes, the chutes are slidably connected with sliding blocks, the sliding blocks are internally and fixedly provided with motors, the output ends of the motors are provided with rotating discs, and the rotating discs are provided with sand removal mechanisms; second air cylinders are symmetrically arranged on two sides of the bottom of the box body, push rods are arranged at output ends of the second air cylinders, and the bottoms of the push rods are hinged with the bottom of the box body; the sand removing device can remove sand from castings in both the vertical direction and the horizontal direction, so that the sand removal of workpieces is more comprehensive and uniform, the repeated reworking is avoided, and the labor burden is reduced.

Description

Sand removing device for automobile castings

Technical Field

The invention belongs to the technical field of casting, and particularly relates to a sand removal device for an automobile casting.

Background

Investment casting is a branch of precision casting in the field of automobile parts, a method for forming a shell by using a refractory material during working, melting out a mold, injecting a metal solution and then cooling to obtain a casting is adopted, and the casting produced by the process has high dimensional precision and surface smoothness, can save a large amount of equipment and processing, and improves the utilization rate of metal.

In the production process, after a casting of an automobile part is demoulded, a layer of molding sand is adhered to the surface layer of the casting, and the conventional small casting is generally cleaned manually, so that the labor intensity is high, the working environment is severe, the damage to workers is great, and the production efficiency is low; for large and medium castings, a sand cleaning machine is used for cleaning, but the existing sand cleaning machine has the defects of complex product structure, high cost and difficult maintenance, and is not considered by general enterprises; but also the prior sand removing device does not completely clean the surface of the casting,

disclosure of Invention

In order to solve the problems in the prior art, the invention provides a sand removal device for an automobile casting.

The technical scheme of the invention is realized as follows:

a sand removing device for automobile castings comprises a working box body, wherein a plurality of first springs are arranged in the center of the bottom of the box body, supporting plates are arranged at the tops of the springs, pulleys are arranged at the end parts of two sides of each supporting plate, a fixture for castings is arranged at the top of each supporting plate, first air cylinders are symmetrically arranged on two side walls of the box body, sliding grooves are symmetrically formed in the side walls of the box body, sliding blocks are connected onto the sliding grooves in a sliding mode, a motor is fixedly arranged in each sliding block, a rotating disc is arranged at the output end of the motor, and a sand removing mechanism is arranged on each rotating disc; the bilateral symmetry of bottom half is equipped with the second cylinder, the output of second cylinder is equipped with the push rod, the bottom and the bottom half of push rod are articulated.

Furthermore, the sand removing mechanism comprises three divergent support rods hinged with the rotary table, one ends of the support rods, far away from the rotary table, are rotatably connected with sand removing balls, the middle part of the rotary table is provided with guide rods, the guide rods are connected with guide rings in a sliding manner, one ends of three support rods corresponding to the support rods are hinged on the guide rings, and the other ends of the support rods are connected with the corresponding support rods; and second springs are uniformly arranged between the guide ring and the rotary disc along the circumferential direction.

Furthermore, a limiting block is arranged on the guide rod and used for limiting the maximum displacement of the guide ring.

Furthermore, the surface of the sand removal roller is provided with frosted bulges which are uniformly distributed.

Furthermore, the side wall line of the box body is also provided with a limiting block for limiting the push rod.

The effect of the working principle of the invention is as follows:

in the scheme, the automobile casting asphalt needing sand cleaning is placed into a clamp, and the clamp is used for fixing and limiting, so that separation is avoided; when the sand is cleaned, the motor rotates to enable the rotary disc at the output end to rotate, so that the sand cleaning mechanism is driven to work, and the sand cleaning work is carried out on the surface of the casting.

For castings of different sizes or models, the side walls of the box body are symmetrically provided with sliding grooves, sliding blocks are connected onto the sliding grooves in a sliding mode, first air cylinders are symmetrically arranged on the two side walls of the box body, the first air cylinders are started, the position of the sliding blocks can be pushed, the sliding blocks are enabled to be close to or far away from the castings, and for small castings, the first air cylinders are started, so that the sliding blocks can move towards the castings, and the sand cleaning mechanism can contact the castings;

for a larger casting, the output end of the air cylinder is fixedly connected with the sliding block, and the air cylinder can be driven to enable the sliding block to move towards the direction far away from the casting, so that the sand removing mechanism is matched with the casting better.

When the sand removing machine is used for removing sand, the second cylinder is started, reciprocating up and down movement is realized, the output end of the second cylinder can push the push rod to reciprocate up and down to rotate around the hinged point, the support plate is extruded or loosened, the pulley is arranged at the end part of the support plate, when the push rod rotates upwards to extrude the support plate, the push rod can move upwards, otherwise, the push rod rotates downwards, the push rod does not have thrust, the support plate can move downwards under the action of the first spring, the casting on the support plate can move up and down, and the sand removing roller of the sand removing mechanism can clean the surface of the casting more comprehensively and uniformly.

The sand cleaning mechanism comprises three divergent support rods hinged with a rotary table, wherein one ends of the support rods, far away from the rotary table, are rotatably connected with sand cleaning balls, the middle part of the rotary table is provided with a guide rod, the guide rod is connected with a guide ring in a sliding manner, one ends of three support rods corresponding to the support rods are hinged on the guide ring, and the other ends of the support rods are connected with the corresponding support rods; second springs are uniformly arranged between the guide ring and the rotary table along the circumferential direction; when the sand cleaning roller abuts against the surface of the casting, the sliding block is close to the casting, so that the supporting rod is expanded outwards, the sand cleaning roller moves outwards along with the sliding block, and the sand cleaning path or the coverage area is enlarged; when the first cylinder contracts, the sliding block moves away from the casting, so that the sand cleaning roller gathers towards the middle part, and the sand cleaning roller always performs friction sand cleaning on the surface of the casting in the process; the whole process can both carry out the sand removal to the foundry goods no matter vertical direction or horizontal direction, and is more comprehensive, even to the sand removal of work piece, avoids repeated reworking, reduces artifical burden.

Drawings

FIG. 1 is a schematic structural diagram of a sand removing device for automobile castings according to the present invention;

FIG. 2 is a schematic structural diagram of the sand removing mechanism of the present invention.

The reference numerals include: the sand cleaning device comprises a box body 1, a first air cylinder 2, a sliding groove 3, a sliding block 4, a rotary table 5, a supporting rod 6, a sand cleaning roller 7, a clamp 8, a push rod 9, a second air cylinder 10, a first spring 11, a limiting block 12, a supporting plate 13, a pulley 14, a guide rod 15, a guide ring 16 and a supporting rod 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Example 1

As shown in fig. 1-2, an automobile casting sand cleaning device comprises a working box body 1, wherein the center of the bottom of the box body 1 is provided with a plurality of first springs 11, the tops of the springs are provided with supporting plates 13, the end parts of two sides of each supporting plate 13 are provided with pulleys, the top of each supporting plate 13 is provided with a clamp 8 for casting, two side walls of the box body 1 are symmetrically provided with first air cylinders 2, the side walls of the box body 1 are also symmetrically provided with sliding grooves 3, the sliding grooves 3 are connected with sliding blocks 4 in a sliding manner, a motor is fixedly arranged in each sliding block 4, the output end of the motor is provided with a rotating disc 5, and the rotating disc 5 is provided with a sand cleaning mechanism; the bilateral symmetry of box 1 bottom is equipped with second cylinder 10, the output of second cylinder 10 is equipped with push rod 9, the bottom of push rod 9 is articulated with box 1 bottom.

The sand removing mechanism comprises three divergent support rods 6 hinged with the rotary table 5, one ends of the support rods 6, far away from the rotary table 5, are rotatably connected with sand removing balls, the middle part of the rotary table 5 is provided with guide rods, the guide rods are slidably connected with guide rings 16, one ends of three support rods 17 corresponding to the support rods 6 are hinged on the guide rings 16, and the other ends of the support rods 17 are connected with the corresponding support rods 6; and second springs are uniformly arranged between the guide ring 16 and the rotating disc 5 along the circumferential direction.

The guide rod is provided with a limiting block 12 for limiting the maximum displacement of the guide ring 16.

And frosted bulges are uniformly distributed on the surface of the sand removing roller 7.

The side wall line of the box body 1 is also provided with a limiting block 12 for limiting the push rod 9.

When in use:

placing the automobile casting asphalt needing sand cleaning into a clamp 8, and fixing and limiting by utilizing the clamp 8 to avoid separation; during sand removal, the motor rotates to enable the rotary disc 5 at the output end to rotate, so that the sand removal mechanism is driven to work, and sand removal work is carried out on the surface of a casting.

For castings of different sizes or models, the side walls of the box body 1 are symmetrically provided with the sliding grooves 3, the sliding blocks 4 are connected onto the sliding grooves 3 in a sliding mode, the first air cylinders 2 are symmetrically arranged on the two side walls of the box body 1, the first air cylinders 2 are started, the positions of the sliding blocks 4 can be pushed, the sliding blocks 4 are close to or far away from the castings, and for small castings, the sliding blocks 4 can be moved towards the castings by starting the first air cylinders 2, so that the sand removing mechanism can contact the castings;

for a larger casting, the output end of the air cylinder is fixedly connected with the sliding block 4, and the air cylinder can be driven to enable the sliding block 4 to move towards the direction far away from the casting, so that the sand removing mechanism is better matched with the casting.

During the sand removal, second cylinder 10 starts, reciprocal reciprocating, reciprocal promotion push rod 9 that reciprocates from top to bottom will be of second cylinder 10 rotates around the pin joint, and then extrude or loosen backup pad 13, because backup pad 13 tip has the pulley, upwards rotate when push rod 9, when extrudeing backup pad 13, push rod 9 will the rebound, otherwise push rod 9 rotates downwards, push rod 9 does not have thrust backup pad 13 will the rebound under first spring 11 effect, and then realized the foundry goods reciprocating motion from top to bottom on the backup pad 13, the sand removal roller 7 of sand removal mechanism can be cleared up the foundry goods surface more comprehensively evenly.

The sand cleaning mechanism comprises three divergent support rods 6 hinged with a rotary table 5, wherein one end, far away from the rotary table 5, of each support rod 6 is rotatably connected with a sand cleaning ball, a guide rod is arranged in the middle of the rotary table 5, a guide ring 16 is connected onto each guide rod in a sliding manner, one end of each support rod 17 corresponding to each support rod 6 is hinged onto each guide ring 16, and the other end of each support rod 17 is connected with the corresponding support rod 6; second springs are uniformly arranged between the guide ring 16 and the rotary table 5 along the circumferential direction; when the motor rotates to start the first air cylinder 2, the output end of the first air cylinder 2 reciprocates left and right to drive the sliding block 4 to move left and right, so that the stay bar 6 is periodically pushed to rotate around the hinge point, when the sand cleaning roller 7 props against the surface of a casting, the sliding block 4 is close to the casting, the stay bar 6 is expanded outwards, and the sand cleaning roller 7 moves outwards along with the movement of the stay bar, so that the sand cleaning path or the coverage area is enlarged; when the first cylinder 2 contracts, the sliding block 4 moves away from the casting direction, so that the sand cleaning roller 7 gathers towards the middle part, and the sand cleaning roller 7 always performs friction sand cleaning on the surface of the casting in the process; the whole process can both carry out the sand removal to the foundry goods no matter vertical direction or horizontal direction, and is more comprehensive, even to the sand removal of work piece, avoids repeated reworking, reduces artifical burden.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims

1. The automobile casting sand removing device is characterized by comprising a box body for working, wherein a plurality of first springs are arranged in the center of the bottom of the box body, a supporting plate is arranged at the top of each spring, pulleys are arranged at the end parts of two sides of the supporting plate, a fixture for castings is arranged at the top of the supporting plate, first air cylinders are symmetrically arranged on two side walls of the box body, the output ends of the first air cylinders are fixedly connected with chutes, sliding grooves are symmetrically arranged on the side walls of the box body, sliding blocks are connected onto the sliding grooves in a sliding manner, a motor is fixedly arranged in each sliding block, a rotating disc is arranged at the output end of the motor, and a sand removing mechanism is arranged on each rotating disc; the bilateral symmetry of bottom half is equipped with the second cylinder, the output of second cylinder is equipped with the push rod, the bottom and the bottom half of push rod are articulated.

2. The automobile casting sand cleaning device according to claim 1, wherein the sand cleaning mechanism comprises three divergent supporting rods hinged to a rotary table, one ends of the supporting rods, far away from the rotary table, are rotatably connected with sand cleaning balls, a guide rod is arranged in the middle of the rotary table, guide rings are slidably connected onto the guide rods, one ends of three supporting rods corresponding to the supporting rods are hinged onto the guide rings, and the other ends of the supporting rods are connected with the corresponding supporting rods; and second springs are uniformly arranged between the guide ring and the rotary disc along the circumferential direction.

3. The sand removal device for automobile castings according to claim 2, wherein a stopper is provided on the guide rod for limiting the maximum displacement of the guide ring.

4. The sand removal device for automobile castings according to claim 2, wherein the surface of the sand removal roller is provided with evenly distributed sanding protrusions.

5. The sand removal device for automobile castings according to claim 2, wherein a stopper for restricting the push rod is further provided on the side wall line of the box body.