Automatic product inner cavity center dividing device

Abstract

The utility model provides a product inner cavity automatic center dividing device which comprises a driving piece, a fixing plate, a pair of sliding blocks and a pair of elastic reset mechanisms, a pair of sliding grooves are formed in the side face of one side of the fixing plate, the pair of sliding blocks are installed in the pair of sliding grooves in a sliding mode, and the pair of elastic reset mechanisms are connected with the pair of sliding blocks respectively. When the driving piece drives the sliding blocks to act, the pair of sliding blocks can synchronously and horizontally stretch out towards the two sides, the sliding blocks stretching out abut against and make contact with the side walls of the two opposite sides of the inner cavity of the product, outward acting force is applied to the side walls of the two sides of the inner cavity of the product, it is guaranteed that the sliding blocks are tightly attached to the side walls of the inner cavity of the product, and the stretching-out lengths of the pair of sliding blocks are the same all the time; therefore, the center line of the inner cavity of the product can coincide with the center line position of the driving piece conveniently, and the center line position of the product can be known. And after the product is positioned, the driving piece moves reversely, and the pair of sliding blocks automatically retract and reset at the same time under the action of the elastic reset mechanism and are separated from the side walls of the two opposite sides of the inner cavity of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of die-casting machine molding, in particular to an automatic centering device for a product inner cavity. Background Art

[0002] The die-casting machine is a machine that uses pressure casting. When in use, the die-casting machine hydraulically injects molten metal into the mold under pressure, cools and forms it, and then opens the mold to obtain a solid metal casting.

[0003] After die-casting, products sometimes require machining, such as producing holes and threads on a machine tool. This requires locating the center of the product. However, die-cast products are typically large, and manufacturing errors can occur during the die-casting process of different batches of the same model. Traditional positioning methods cannot always accurately locate the center of the product, which can easily lead to machining errors during subsequent machining. Utility Model Content

[0004] In response to the defects in the prior art, the purpose of the present utility model is to provide an automatic centering device for the inner cavity of a product to solve the problem that the existing positioning method is unable to accurately locate the center of different batches of die-cast products, which leads to machining errors in subsequent machining.

[0005] In order to prevent the mold side walls from moving relative to the base plate during die casting, the combined mold cavity uses multiple screw connections or inlay connections at the connection between the two. This increases the difficulty of subsequent demolding and demolding operations and prolongs the demolding time.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] The present application provides an automatic sub-centering device for the inner cavity of a product, which includes a driving member, a fixed plate, a pair of sliders and a pair of elastic reset mechanisms. A pair of slide grooves arranged along the length direction are formed on one side of the fixed plate, and the pair of slide grooves are symmetrically arranged. A pair of sliders are respectively slidably installed in the pair of slide grooves, and a pair of elastic reset mechanisms are respectively connected to the pair of sliders. The driving member is fixedly installed on the fixed plate, and the driving member is connected to one end of the pair of sliders for driving the pair of sliders to slide outward along the slide grooves.

[0008] Furthermore, the elastic reset mechanism includes a reset spring and a guide column, the slider is formed with a mounting groove arranged along its length direction, one end of the guide column is fixedly mounted on the fixed plate, and the other end of the guide column extends into the mounting groove perpendicular to the sliding direction of the slider, one end of the reset spring is fixedly connected to the guide column, and the other end of the reset spring is fixedly mounted at one end of the mounting groove.

[0009] Furthermore, the driving member is a cylinder, a push cylinder head is installed on the piston rod of the cylinder, and the push cylinder head forms a sliding connection with the fixing plate perpendicular to the sliding direction of the slider.

[0010] Furthermore, the push cylinder head has a conical outer structure, wherein the outer diameter of one end of the push cylinder head adjacent to the cylinder is larger than the outer dimension of the other end, and the end of the slider that is in contact with the push cylinder head is formed with a guiding slope for guiding the insertion of the push cylinder head.

[0011] Furthermore, the product inner cavity automatic sub-centering device also includes a cover plate, which is installed on a side surface of the fixed plate away from the driving member.

[0012] The beneficial effects of the present invention are as follows: through the cooperation of the driving member, a pair of sliders and an elastic reset mechanism, when the driving member drives the slider to move, the pair of sliders can be synchronously extended horizontally to both sides, and the sliders extended outward can contact and resist the side walls on the opposite sides of the product cavity, exerting an outward force on the side walls on the opposite sides of the product cavity, ensuring that the sliders are tightly fitted to the side walls of the product cavity, and since the outward extension lengths of the pair of sliders are always the same, the center line of the product cavity is easy to coincide with the center line position of the driving member, thereby knowing the center line position of the product; and when the product positioning is completed, the driving member moves in the opposite direction, and the pair of sliders automatically retract and reset at the same time under the action of the elastic reset mechanism, and disengage from the side walls on the opposite sides of the product cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the product inner cavity automatic sub-centering device and the product in the embodiment of the present application.

[0014] Figure 2 This is a schematic diagram of the installation and assembly breakdown structure between the product inner cavity automatic sub-center device and the product in the embodiment of the present application.

[0015] Figure 3 This is a schematic diagram of the main view structure of the product inner cavity automatic sub-centering device in an embodiment of the present application (with the cover removed).

[0016] Figure 4This is a schematic diagram of the longitudinal cross-sectional structure of the product inner cavity automatic sub-centering device in the embodiment of the present application.

[0017] Figure 5 Schematic diagram of the exploded structure of the installation and assembly between the cover plate and the fixing plate in an embodiment of the present application.

[0018] Figure 6 This is a schematic diagram of the structural state in which the cylinder in an embodiment of the present application pushes the slider to extend outward.

[0019] Figure 7 Schematic diagram of the three-dimensional structure of the slider in the embodiment of the present application.

[0020] In the picture:

[0021] 100-automatic sub-centering device for the product inner cavity, 200-product, 201-side wall, 1-driving part, 2-fixed plate, 21-slide groove, 22-through hole, 3-cover plate, 4-elastic reset mechanism, 41-guide column, 42-reset spring, 5-push cylinder head, 6-slider, 61-mounting groove, 62-guide slope. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] See attached Figure 1 To the attached Figure 2 As shown, this embodiment provides a product inner cavity automatic sub-centering device 100, which includes a driving member 1, a fixing plate 2, a pair of sliders 6 and a pair of elastic reset mechanisms 4.

[0024] Refer to the attached Figure 2 To the attached Figure 4 As shown, the driving member 1 is fixedly mounted on one side of the fixed plate 2, and a pair of sliders 6 are mounted on the other side of the fixed plate 2, with the sliders 6 being arranged symmetrically. A pair of symmetrically arranged slide grooves 21 are provided along the length of the other side of the fixed plate 2. The sliders 6 are slidably mounted in the pair of slide grooves 21, forming a linear reciprocating sliding connection with the slide grooves 21.

[0025] Continue to refer to the attached Figure 2 To the attached Figure 4As shown, in this embodiment, the driving member 1 is a pneumatic cylinder, with a push cylinder head 5 mounted at the top of the cylinder's piston rod. The push cylinder head 5 has a conical outer structure, and the end with the larger outer diameter of the push cylinder head 5 is adjacent to the side of the cylinder. That is, the outer diameter of the push cylinder head 5 gradually decreases along the extension direction of the cylinder's piston rod. Correspondingly, a guide ramp 62 is formed on the end of the slider 6 that contacts the push cylinder head 5, which is used to guide the insertion of the push cylinder head 5. The matching of the conical shape of the push cylinder head 5 and the guide ramp 62 formed on one end of the slider 6 ensures that the outer surface of the push cylinder head 5 always contacts the guide ramp 62 of the slider 6 during the process of the push cylinder head 5 being pushed outward by the cylinder. This ensures a stable contact between the push cylinder head 5 and the slider 6, and thus, the slider 6 moves more smoothly as the push cylinder head 5 drives the slider 6 outward.

[0026] Refer to the attached Figure 2 To the attached Figure 5 As shown, a through-hole 22 extending from front to back is formed at the center of the fixed plate 2. The push cylinder head 5 is mounted within this through-hole 22. The push cylinder head 5 and the through-hole 22 form a sliding connection perpendicular to the sliding direction of the slider 6, that is, a sliding connection is formed between the push cylinder head 5 and the through-hole 22 in the front-to-back direction. Thus, when the cylinder drives the push cylinder head 5 to move back and forth, the moving push cylinder head 5 in turn drives the pair of sliders 6 in contact with its outer surface to move synchronously outward along the slide groove 21.

[0027] Refer to the attached Figure 2 To the attached Figure 4 As shown, a pair of elastic reset mechanisms 4 are respectively connected to a pair of sliders 6, and are used to automatically move and reset the sliders 6. That is, when the push cylinder head 5 pushes the slider 6 to extend outward along the slide groove 21 and then retracts in the opposite direction, the spring reset mechanism can drive the slider 6 to move in the opposite direction along the slide groove 21 to achieve the reset of the slider 6.

[0028] For details, please refer to the attached Figure 2 To the attached Figure 5 And attached Figure 7 As shown, in this embodiment, the elastic return mechanism 4 includes a return spring 42 and a guide post 41. Each slider 6 is formed with a mounting slot 61. One end of the guide post 41 is fixedly mounted on the fixed plate 2, while the other end of the guide post 41 extends into the mounting slot 61 on the slider 6. This allows the slider 6 to move horizontally back and forth a certain distance relative to the guide post 41. Specifically, when the inner side of the chute 21 contacts the guide post 41, the slider 6 cannot move further in that direction. One end of the return spring 42 is fixedly mounted on the inner wall of one end of the chute 21, while the other end of the return spring 42 is fixedly mounted on the guide post 41.

[0029] Refer to the attached Figure 4 and attached Figure 6As shown, when the push cylinder head 5 drives the slider 6 to move outward along the slide groove 21, as the slider 6 moves along the slide groove 21, the return spring 42 located in the installation of the slider 6 is in a compressed state. When the cylinder drives the push cylinder head 5 to retract in the opposite direction, the slider 6 loses the thrust applied by the push cylinder head 5, and the slider 6 is driven by the elastic force of the return spring 42 to move in the opposite direction and reset.

[0030] Refer to the attached Figure 5 As shown, in order to protect the slider 6 and the elastic reset mechanism 4 installed on the fixed plate 2, a cover plate 3 is further installed on the outer side surface of the fixed plate 2.

[0031] In order to better understand the product inner cavity automatic centering device 100 in this embodiment, the working principle thereof is briefly described below:

[0032] When the cam 201 is in the closed position, the cam 202 is in the closed position, and the cam 203 is in the closed position, and the cam 204 is in the closed position, and the cam 205 is in the closed position, and the cam 206 is in the closed position, and the cam 207 is in the closed position, and the cam 208 is in the closed position, and the cam 209 is in the closed position, and the cam 201 is in the closed position, and the cam 209 is in the closed position, and the cam 201 is in the closed position, and the cam 208 is in the closed position, and the cam 209 is in the closed position, and the cam 201 is in the closed position, and the cam 209 is in the closed position, and the cam 201 is in the closed position, and the cam 209 is in the closed position, and the cam 201 is in the closed position, and the cam 209 is in the closed position, and the cam 201

[0033] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A product cavity automatic centering device, characterized in that: The product inner cavity automatic sub-centering device includes a driving member, a fixed plate, a pair of sliders and a pair of elastic reset mechanisms. A pair of slide grooves arranged along the length direction are formed on the side surface of one side of the fixed plate. The pair of slide grooves are symmetrically arranged. A pair of sliders are respectively slidably installed in the pair of slide grooves. A pair of elastic reset mechanisms are respectively connected to the pair of sliders. The driving member is fixedly installed on the fixed plate. The driving member is in contact with one end of the pair of sliders and is used to drive the pair of sliders to slide outward along the slide grooves.

2. The automatic centering device for the inner cavity of a product according to claim 1, characterized in that: The elastic reset mechanism includes a reset spring and a guide column. The slider is formed with a mounting groove arranged along its length direction. One end of the guide column is fixedly mounted on the fixed plate, and the other end of the guide column extends into the mounting groove perpendicular to the sliding direction of the slider. One end of the reset spring is fixedly connected to the guide column, and the other end of the reset spring is fixedly mounted at one end of the mounting groove.

3. The automatic centering device for the inner cavity of a product according to claim 1 or 2, characterized in that: The driving member is a cylinder, a push cylinder head is installed on the piston rod of the cylinder, and the push cylinder head forms a sliding connection with the fixing plate perpendicular to the sliding direction of the slider.

4. The automatic centering device for the inner cavity of a product according to claim 3, characterized in that: The push cylinder head has a conical outer structure, wherein the outer diameter of one end of the push cylinder head adjacent to the cylinder is larger than the outer dimension of the other end; and the end of the slider that contacts and is connected to the push cylinder head is formed with a guiding slope for guiding the insertion of the push cylinder head.

5. The automatic centering device for the inner cavity of a product according to claim 1, characterized in that: The product inner cavity automatic sub-centering device further comprises a cover plate, which is mounted on a side surface of the fixing plate away from the driving member.

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