阅读说明：本技术 汽车网状防溅板、成型工艺及装置 (Automobile mesh splash guard, forming process and device ) 是由 宋小川 曲先伟 曲思维 孙俊 孙德明 邹军 于 2021-10-15 设计创作，主要内容包括：本发明属于塑料制品焊接成型技术领域,具体涉及一种汽车网状防溅板、成型工艺及装置。本发明的汽车网状防溅板,包括底板、中层网和上层网,底板和上层网平行设置,中层网呈波浪状位于底板和上层网之间。本发明的汽车网状防溅板成型装置采用超声波焊接,汽车网状防溅板在成型过程中不受热变形影响,可使产品达到表面平整,本发明还采用简单的焊接模具,使成型过程中焊点受力均匀,焊后结点牢固度更高,提高制品质量,该汽车网状防溅板成型装置利用控制系统,可连续、稳定的产出制品。(The invention belongs to the technical field of plastic product welding forming, and particularly relates to an automobile mesh-shaped splash guard, a forming process and a device. The invention relates to an automobile reticular splash shield, which comprises a bottom plate, a middle layer net and an upper layer net, wherein the bottom plate and the upper layer net are arranged in parallel, and the middle layer net is positioned between the bottom plate and the upper layer net in a wavy shape. The forming device of the automobile reticular splash shield adopts ultrasonic welding, the automobile reticular splash shield is not affected by thermal deformation in the forming process, and the surface of a product can be smooth.)

1. The automobile net-shaped splash guard is characterized by comprising a bottom plate (1), a middle layer net (2) and an upper layer net (3), wherein the bottom plate (1) and the upper layer net (3) are arranged in parallel, and the middle layer net (2) is positioned between the bottom plate (1) and the upper layer net (3) in a wavy manner.

2. The automotive mesh splash shield according to claim 1, wherein the base plate (1) is ultrasonically welded at the valleys of the middle layer web (2) and the upper layer web (3) is ultrasonically welded at the peaks of the middle layer web (2) to form a continuous completed product.

3. Automotive mesh splash shield according to claim 1, characterized in that the intermediate layer mesh (2) is of single-layer design.

4. The apparatus for forming a net-shaped splash shield for a vehicle of claim 1, wherein the apparatus comprises: the device comprises a fixed frame body (4), a forming assembly (5), a driving cylinder (6) and an ultrasonic welding unit; the active air cylinder (6) is fixed on the fixed frame body (4), the forming assembly (5) is connected with the active air cylinder (6), the active air cylinder (6) pushes the forming assembly (5) to move left and right along the horizontal direction to realize propelling movement, the ultrasonic welding unit is located at the front end of the forming assembly (5), and the ultrasonic welding unit moves up and down perpendicular to the fixed frame body (4).

5. The forming device of the mesh-shaped splash shield for the automobile of claim 4, wherein the forming assembly (5) comprises a moving frame (9), a pressing cylinder I (10), a fixing seat (11), a linear bearing (12), a pressing cylinder II (13) and a forming template (14), the pressing cylinder I (10) and the pressing cylinder II (13) are fixed on the moving frame (9), the moving frame (9) is connected with the fixing seat (11) and fixed on the linear bearing (12), and the forming template (14) is connected with the fixing seat (11) and arranged on the linear bearing (12).

6. The apparatus of claim 4, wherein there are 5 ultrasonic welders in each ultrasonic welder set.

7. The process for forming the mesh-type splash shield for the automobile of claim 1, comprising the steps of:

s1, determining a wave pitch in a middle-layer net wave structure according to product parameters, setting program parameters, placing a forming template (14) between a bottom plate (1) and a middle-layer net (2) to be welded, pressing the middle-layer net (2) and the bottom plate (1) by a pressing cylinder, pushing a forming assembly (5) by a main pushing cylinder (6) to enable the forming template (14) to move to a working position of an ultrasonic welding unit I (7) nearest to a fixed seat (11), starting the ultrasonic welding unit I (7) to work downwards, welding a connection point A of the bottom plate and the middle-layer net (2), and returning the ultrasonic welding unit I (7) after the operation is finished;

s2, a main push cylinder (6) pushes a forming assembly (5) to enable a forming template (14) to reach the working position of an ultrasonic welding machine II (8), an upper layer net (3) is pulled and placed under the ultrasonic welding machine II (8), an ultrasonic welding machine set II (8) is started to work downwards, a connecting point B of a middle layer net and the upper layer net is welded, and after the welding is finished, the ultrasonic welding machine set II (8) returns;

s3, when the main push cylinder (6) drags the forming assembly (5) and the product to retract to a distance A and 1 wave distance below the working position of the ultrasonic welding unit I (7), the pressing cylinder is released, the product stops retracting, the forming assembly (5) continues retracting, and the pressing cylinder (13) is pressed when the forming template (14) reaches the position C below the working position of the ultrasonic welding unit I (7); the ultrasonic welding set I (7) works downwards to complete single cycle action; returning the ultrasonic welding unit I (7);

s4, the steps S2-S3 are repeated to realize continuous production of the product.

Technical Field

The invention belongs to the technical field of plastic product welding forming, and particularly relates to a forming process and device of a mesh-shaped splash shield of an automobile.

Background

At present, the netted splashplate of current car utilizes the hot welding mode, stereotypes out the goods of fixed thickness, and this kind of goods makes the surface unevenness because of welding mode produces the heat altered shape, and the firm in connection degree is poor between the layer, and the product easily scatters, and production efficiency is not high.

Chinese patent publication No. CN207509756U discloses an ultrasonic welding machine, which comprises a worktable and a forming assembly arranged on the worktable, wherein a press mold is arranged on the machine body, a fixed mold matched with the press mold is arranged on the worktable, and a fixing device for the fixed mold is arranged on the worktable. The device has a complex structure and a complex process in the use process, and is not suitable for the forming process of the automobile mesh-shaped splash shield.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a process and a device for forming a mesh-shaped splash shield of an automobile. The forming device of the automobile reticular splash shield adopts ultrasonic welding, the automobile reticular splash shield is not affected by thermal deformation in the forming process, and the surface of a product can be smooth.

The invention relates to an automobile reticular splash shield, which comprises a bottom plate, a middle layer net and an upper layer net, wherein the bottom plate and the upper layer net are arranged in parallel, and the middle layer net is positioned between the bottom plate and the upper layer net in a wavy shape.

Further, the bottom plate and the middle layer net are welded at the wave troughs by ultrasonic waves, and the upper layer net and the middle layer net are welded at the wave crests by ultrasonic waves to form a continuous and complete product.

The invention also aims to protect the forming device of the automobile reticular splash shield for producing the product, which comprises the following specific structures: the device comprises a fixed frame body, a forming assembly, a driving cylinder and an ultrasonic welding unit. The driving cylinder is fixed on the fixed frame body, the forming assembly is connected with the driving cylinder, the driving cylinder pushes the forming assembly to move left and right along the horizontal direction to realize propelling movement, the ultrasonic welding unit is located at the front end of the forming assembly, and the ultrasonic welding unit moves up and down perpendicular to the fixed frame body.

Further, the shaping subassembly is including removing the frame, compressing tightly cylinder I, fixing base, linear bearing, compressing tightly cylinder II and shaping template, compress tightly cylinder I and compress tightly cylinder II and be fixed in on removing the frame, it fixes on linear bearing through the fixing base to remove the frame, the shaping template is established on linear bearing through the fixing base.

The forming process of the automobile mesh splash guard comprises the following steps:

s1, determining a wave pitch in a wave structure of a middle-layer net according to product parameters, setting program parameters, placing a forming template between a bottom plate and the middle-layer net to be welded, pressing the middle-layer net and the bottom plate by a pressing cylinder, pushing a forming assembly by a main pushing cylinder to move the forming template to a working position of an ultrasonic welding unit I closest to a fixed seat, starting the ultrasonic welding unit I to work downwards, welding a connection point A of the bottom plate and the middle-layer net, and returning the ultrasonic welding unit I after the working is finished;

s2, a main push cylinder pushes a forming assembly to enable a forming template to reach the working position of an ultrasonic welding machine II, an upper-layer net is pulled and placed under the ultrasonic welding machine II, an ultrasonic welding unit II is started to work downwards, a connecting point B of a middle-layer net and the upper-layer net is welded, and after the welding is finished, the ultrasonic welding unit II returns;

s3, when the main push cylinder drags the forming assembly and the product to retract to a distance A and 1 wave distance below the working position of the ultrasonic welding unit I, the pressing cylinder is released, the product stops retracting, the forming assembly continues to retract, and the forming template is pressed to the pressing cylinder when the forming template is located below the working position of the ultrasonic welding unit I, namely the position of a C point; the ultrasonic welding set I works downwards to complete single cycle action; returning the ultrasonic welding unit I;

s4, the steps S2-S3 are repeated to realize continuous production of the product.

Compared with the prior art, the automobile reticular splash guard forming device adopts ultrasonic welding, the automobile reticular splash guard is not affected by thermal deformation in the forming process, the surface of a product can be smooth, the simple welding mould is adopted, the stress of welding points in the forming process is uniform, the firmness of nodes after welding is higher, the product quality is improved, and the control system is utilized by the automobile reticular splash guard forming device, so that the product can be continuously and stably produced.

Drawings

FIG. 1 is a diagram of an automotive mesh splash shield product of the present invention;

FIG. 2 is a schematic structural diagram of a device for forming a net-shaped splash shield for an automobile according to the present invention;

FIG. 3 is a schematic structural view of a second apparatus for forming a net-shaped splash shield for an automobile according to the present invention;

FIG. 4 is a first process view of forming the mesh-shaped splash shield for a vehicle according to the present invention;

FIG. 5 is a second process diagram for forming the mesh-shaped splash shield of the present invention;

FIG. 6 is a third process diagram for forming the mesh-shaped splash shield of the present invention.

Wherein, 1, bottom plate, 2, middle level net, 3, upper net, 4, fixed support body, 5, initiative cylinder, 6, initiative cylinder, 7, ultrasonic welding unit I, 8, ultrasonic welding unit II, 9, remove the frame, 10, compress tightly cylinder I, 11, fixing base, 12, linear bearing, 13, compress tightly cylinder II, 14, shaping template.

Detailed Description

The invention is described in more detail below with reference to specific examples, without limiting the scope of the invention. Unless otherwise specified, the experimental methods adopted by the invention are all conventional methods, and experimental equipment, materials, reagents and the like used in the experimental method can be purchased from chemical companies.

Example 1

The mesh-shaped splash shield for the automobile comprises a bottom plate (1), a middle layer mesh (2) and an upper layer mesh (3), wherein the middle layer mesh (2) is positioned between the bottom plate (1) and the upper layer mesh (3) in a wavy manner, is in a single-layer design and cannot be upwards overlapped in a direction perpendicular to the bottom plate, and the width of the middle layer mesh can be designed according to the width of a product without horizontal arrangement. The middle layer net (2) and the upper layer net (3) are made of the same material, the middle layer net (2) and the bottom plate (1) are welded at wave troughs by ultrasonic waves, the upper layer net (3) and the middle layer net (2) are welded at wave crests by ultrasonic waves, and a complete product is formed by continuous and cyclic actions (as shown in figure 1).

Example 2

As shown in fig. 2-3, the forming device of the mesh-shaped splash shield for the automobile comprises: the device comprises a fixed frame body (4), a forming assembly (5), a driving air cylinder (6), an ultrasonic welding unit I (7) and an ultrasonic welding unit II (8), wherein each group comprises five ultrasonic welding machines; the utility model discloses a forming assembly, including the fixed support body (4) of ultrasonic welding machine group, on initiative cylinder (6) were fixed in fixed support body (4), forming component (5) are connected with initiative cylinder (6), and initiative cylinder (6) promote forming component (5) and realize advancing the action along horizontal direction left and right sides displacement, and the ultrasonic welding machine group is located the front end of forming component (5), and the welding action is realized to displacement about the fixed support body of ultrasonic welding machine group perpendicular to (4), realizes in succession, the purpose of stable output goods with the common realization of horizontal motion forming component.

The forming assembly (5) comprises a moving frame (9), a pressing cylinder I (10), a fixed seat (11), a linear bearing (12), a pressing cylinder II (13) and a forming template (14), the pressing cylinder I (10) and the pressing cylinder II (13) are identical in structure, the pressing cylinder I (10) and the pressing cylinder II (13) are fixed on the moving frame (9), the moving frame (9) is connected with the fixed seat (11) through a bolt and fixed on the linear bearing (12), and the forming template (14) is designed to be of a wave forming structure; the forming template (14) is arranged on the linear bearing (12) through the bolt connecting fixing seat (11).

Example 3

The forming process of the automobile mesh splash guard comprises the following steps:

s1, determining a wave pitch in a middle-layer net wave structure according to product parameters, setting program parameters, placing a forming template (14) between a bottom plate (1) and a middle-layer net (2) to be welded, pressing the bottom plate (1) by a pressing cylinder II (13) through the lower part of the forming template (14), pressing the middle-layer net (2) by a pressing cylinder I (10) through the upper part of the forming template (14), pushing a forming assembly (5) by a main pushing cylinder (6) to move the forming template (14) to a working position of an ultrasonic welding unit I (7) closest to a fixed seat (11), starting the ultrasonic welding unit I (7) to work downwards, and returning the welding unit I (7) after the work is finished, wherein the position of a welding point A is shown in figure 4; the forming template (14) is fixed on the linear bearing (12) through bolt connection, and the forming template (14) is supported by the linear bearing (12) to move together.

S2, a main push cylinder (6) pushes a forming assembly (5) to enable a forming template (14) to reach the working position of the ultrasonic welding unit II (8), the upper layer net (3) is pulled and placed right below the ultrasonic welding unit II (8), and for the pulling mode of the upper layer net, manual pulling can be performed for the first time.

Starting the ultrasonic welding machine II (8) to work downwards, welding the position of a B point (as shown in figure 5), and returning the ultrasonic welding machine set II (8) after the work is finished;

s3, when the main push cylinder (6) drags the forming assembly (5) and the product to retract to a position 1 wave distance (namely a C point) under the working position of the point A ultrasonic welding unit I (7), the pressing cylinder I (10) and the pressing cylinder II (13) are loosened, the product stops retracting, the forming assembly (5) continues retracting, and the pressing cylinder (13) is pressed when the forming template (14) is enabled to be under the working position (namely the C point) of the ultrasonic welding unit I (7) (as shown in a figure 6); the ultrasonic welding set I (7) works downwards to complete single cycle action; and the ultrasonic welding machine set I (7) is reset.

S4, the steps S2-S3 are repeated to realize continuous production of the product.

In the above embodiment, the connection points a and C are valley connection points; the connection point B is a peak connection point. The designation A, B, C in the example is for convenience to define the welding sequence of the connection points.

The above-described automotive mesh splash shield product, molding process, and molding apparatus are preferred embodiments, not all examples of which the present invention may be practiced, and any obvious modifications thereof, which would occur to those skilled in the art and which do not depart from the spirit and scope of the present invention, should be construed as being included within the scope of the appended claims.