Positioning and clamping tool for welding automobile spoiler

Abstract

The utility model discloses a positioning and clamping tool for welding an automobile spoiler, which relates to the technical field of automobile part processing equipment and comprises a tool base, a positioning groove and a pressing strip are arranged on the tool base to fix a spoiler bottom plate, and a positioning plate between tool side seats on two sides is provided with an inserting groove for inserting a spoiler wing plate. The clamping sliding plates in the inner grooves in the two sides of the inserting groove clamp the turbulent flow wing plates under the action of the compression springs. A linear driver is arranged below the tool base, a stepping motor is arranged at the top and connected with a lead screw to drive a limiting pressing plate, a positioning top plate and a contact switch are arranged at the top of the lead screw, and a vertical rod guides the limiting pressing plate. After the spoiler wing plate and the bottom plate are located and clamped respectively, the stepping motor drives the limiting pressing plate to move downwards, after welding is completed, the limiting pressing plate returns and touches the contact switch to stop, the linear driver drives the tool base to move downwards, and the welded spoiler can be taken out conveniently. The tool is good in clamping effect, has an automatic control function, is high in universality, and can effectively improve the welding quality and the production efficiency of the automobile spoiler.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive component processing equipment, specifically to a positioning and clamping fixture for welding automotive spoilers. Background Technology

[0002] In the automotive manufacturing industry, car spoilers improve aerodynamic performance, stability, and fuel economy during driving. A car spoiler typically consists of a spoiler base plate and spoiler winglets, joined together through processes such as welding. To ensure welding quality, specialized positioning and clamping fixtures are required. Traditional car spoiler welding fixtures usually employ simple mechanical structures, fixing the various parts of the spoiler through manual adjustment and clamping.

[0003] Currently available automotive spoiler welding fixtures have some shortcomings in practical use. First, traditional fixtures often struggle to accurately position the spoiler base plate and spoiler winglets when fixing the spoiler, resulting in significant dimensional deviations in the welded spoiler and affecting the car's appearance and performance. Second, some fixtures lack sufficient clamping force, making the spoiler prone to loosening during welding, thus affecting the welding quality. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a positioning and clamping fixture for welding automotive spoilers, comprising a fixture base with a positioning groove on its top for placing a spoiler base plate; two horizontal through grooves on the fixture base, each with a pressure strip inserted into it, which presses down on the spoiler base plate in the positioning groove; fixture side seats on both sides of the fixture base, with multiple positioning plates fixed between the two side seats; slots extending vertically through the center of each positioning plate for inserting a spoiler wing plate; internal grooves communicating with the slots on both sides of the internal grooves, with clamping slide plates slidably connected within the internal grooves; and compression springs fixed between the clamping slide plates and the bottom of the internal grooves; a stepper motor mounted on the top of the fixture base, with a lead screw connected to the output end of the stepper motor; and a limit plate connected to the outer side of the lead screw, which is positioned above the positioning plates.

[0005] Furthermore, multiple linear actuators are provided at the lower corner of the tooling base, and the telescopic ends of the linear actuators are fixed to the bottom of the tooling base.

[0006] Furthermore, a positioning top plate is fixed to the top of the lead screw, and a contact switch that can contact the limit pressure plate is installed at the bottom of the positioning top plate. The contact switch is electrically connected to the stepper motor and the linear driver.

[0007] Furthermore, the top of the tooling base is also fixed with a vertical rod that is slidably connected to the limiting pressure plate, and the vertical rod is fixed to the positioning top plate.

[0008] Furthermore, the top of the two clamping slides, which are close to each other, is beveled to facilitate the insertion of the spoiler winglets.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. The positioning groove on the top of the tooling base and the slot on the positioning plate can accurately position the spoiler base plate and spoiler wingplate in the correct position, ensuring high dimensional accuracy of the spoiler after welding, thus improving the appearance quality and performance of the car. The clamping slide plate, under the action of the compression spring, can firmly clamp the spoiler wingplate, and the limiting pressure plate can restrict the vertical movement of the spoiler wingplate, effectively preventing the spoiler from loosening during welding and ensuring welding quality. Moreover, the clamping method is flexible and can adapt to spoilers of different shapes and sizes.

[0011] 2. This tooling adopts automated control. The combined use of stepper motors and linear drivers makes operation simpler and faster, saves time, and improves production efficiency. The linear driver can automatically drive the tooling base downward to facilitate material discharge, reducing labor costs and labor intensity. Attached Figure Description

[0012] Figure 1 This is a top view of the internal structure of this utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the connection structure of a medium stepper motor;

[0014] Figure 3 for Figure 1 Internal structure diagram of the positioning plate;

[0015] Figure 4 for Figure 1 Schematic diagram of the connection structure of the tooling base.

[0016] The reference numerals in the attached drawings are explained as follows: 1. Fixture base; 2. Positioning groove; 3. Fixture side seat; 4. Positioning plate; 401. Slot; 402. Inner groove; 5. Clamping slide plate; 6. Compression spring; 7. Stepper motor; 8. Lead screw; 9. Limiting pressure plate; 10. Linear driver; 11. Positioning top plate; 12. Upright pole; 13. Contact switch; 14. Pressure bar. Detailed Implementation

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] A positioning and clamping fixture for welding automotive spoilers, such as Figure 1 , Figure 3 and Figure 4 As shown, the fixture includes a tooling base 1, with a positioning groove 2 on the top for placing a spoiler base plate; the tooling base 1 has two horizontal through grooves, one above the other, into which a pressure strip 14 is inserted, which can press the spoiler base plate in the positioning groove 2; tooling side seats 3 are provided on both sides of the tooling base 1, and multiple positioning plates 4 are fixed between the two tooling side seats 3; a slot 401 is provided through the middle of the positioning plate 4, which is used to insert a spoiler wing plate; an inner groove 402 is provided on both sides of the slot 401 inside the positioning plate 4, which is connected to the slot 401; a clamping slide plate 5 is slidably connected in the inner groove 402; a compression spring 6 is fixed between the clamping slide plate 5 and the bottom of the inner groove 402; the top of the two clamping slide plates 5 that are close to each other has an angle to facilitate the insertion of the spoiler wing plate; multiple linear actuators 10 are provided at the lower corner of the tooling base 1, and the telescopic ends of the linear actuators 10 are fixed to the bottom of the tooling base 1.

[0021] The positioning groove 2 ensures the accurate placement of the spoiler base plate, providing a stable foundation for subsequent welding. The pressure strip 14 effectively prevents the spoiler base plate from moving during operation, ensuring its position remains unchanged during welding. The slot 401 and clamping slide plate 5 on the positioning plate 4 allow the spoiler wingplate to be quickly and accurately inserted and clamped, improving assembly efficiency. The angled design of the top of the two clamping slide plates 5, which are close to each other, facilitates the insertion of the spoiler wingplate and reduces insertion resistance. The linear actuator 10 allows the entire fixture to be easily lowered after welding to remove the welded spoiler, improving operational convenience.

[0022] like Figure 1 and Figure 2 As shown, in this embodiment, a stepper motor 7 is installed on the top of the tooling base 1, and a lead screw 8 is connected to the output end of the stepper motor 7. A limit plate 9 is connected to the outer side of the lead screw 8, and the limit plate 9 is located above the positioning plate 4. A positioning top plate 11 is fixed on the top of the lead screw 8, and a contact switch 13 that can contact the limit plate 9 is installed on the bottom of the positioning top plate 11. The contact switch 13 is electrically connected to the stepper motor 7 and the linear driver 10. A vertical rod 12 that is slidably connected to the limit plate 9 is also fixed on the top of the tooling base 1, and the vertical rod 12 is fixed to the positioning top plate 11.

[0023] The stepper motor 7 and the lead screw 8 work together to move the limiting pressure plate 9, thereby applying appropriate pressure to the spoiler vane and ensuring close contact between the spoiler vane and the spoiler base plate, thus improving welding quality. The lead screw 8, as a transmission component, converts the rotational motion of the stepper motor 7 into the linear motion of the limiting pressure plate 9, achieving vertical positioning of the spoiler vane and effectively preventing displacement or wobbling during welding, further improving welding accuracy.

[0024] The working principle of this utility model is as follows:

[0025] The spoiler base plate is placed in the positioning groove 2 opened on the top of the fixture base 1. At this time, the shape and size of the positioning groove 2 match the spoiler base plate, ensuring that the spoiler base plate is accurately placed in the predetermined position. Next, the spoiler base plate in the positioning groove 2 is pressed down by inserting the pressure strip 14 in the transverse through groove of the fixture base 1. The insertion of the pressure strip 14 can be done manually or mechanically, and its function is to prevent the spoiler base plate from moving during subsequent operations.

[0026] When the spoiler is inserted into slot 401, the spoiler can be inserted relatively smoothly due to the beveled top of the two clamping slides 5 at their closest ends. During the insertion process, the spoiler first contacts the beveled portion of the clamping slide 5. As insertion continues, the spoiler gradually pushes the clamping slide 5 away, causing it to slide towards both sides of the inner groove 402 inside the positioning plate 4. At this time, the compression spring 6 fixed between the clamping slide 5 and the bottom of the inner groove 402 is compressed. When the spoiler is fully inserted into slot 401, the elastic force of the compression spring 6 acts on the clamping slide 5, causing it to tightly clamp the spoiler, thereby achieving the positioning and clamping of the spoiler.

[0027] The stepper motor 7 is started, driving the lead screw 8 to rotate. A limiting plate 9 is connected to the outer side of the lead screw 8. Due to the rotation of the lead screw 8, the limiting plate 9 will move downwards along the axial direction of the lead screw 8. During this process, the upright 12 acts as a guide, ensuring that the limiting plate 9 moves vertically downwards. As the limiting plate 9 moves downwards, it gradually approaches and eventually presses down on the spoiler vane, ensuring close contact between the spoiler vane and the spoiler base plate, and preventing vertical displacement of the spoiler vane relative to the spoiler base plate, thus improving welding stability. At this point, welding operations can be performed on the spoiler vane and the spoiler base plate.

[0028] After welding is completed, stepper motor 7 reverses. The reverse rotation of stepper motor 7 drives lead screw 8 to rotate in the opposite direction, thereby causing limit plate 9 to return upward along lead screw 8. When limit plate 9 rises to a certain height and touches contact switch 13 installed at the bottom of positioning top plate 11, contact switch 13 will send a signal to stop stepper motor 7 and start linear driver 10. The telescopic end of linear driver 10 is fixed to the bottom of tooling base 1. When linear driver 10 is started, its telescopic end will drive tooling base 1 downward. The downward movement of tooling base 1 will cause the spoiler base plate and spoiler wing plate placed on it to detach from positioning plate 4. At this time, the welded spoiler plate can be easily removed.

[0029] 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 positioning and clamping fixture for welding an automotive spoiler, comprising a fixture base (1), wherein the top of the fixture base (1) is provided with a positioning groove (2) for placing a spoiler base plate; characterized in that: The tooling base (1) has two horizontal through slots, one above the other, and a pressure strip (14) is inserted into each slot. The pressure strip (14) can press down the spoiler base plate in the positioning slot (2). Tooling side seats (3) are provided on both sides of the tooling base (1). Multiple positioning plates (4) are fixed between the two tooling side seats (3). The positioning plates (4) have slots (401) that run vertically through the middle of each slot. The slots (401) are used to insert the spoiler wing plates. The positioning plates (4) are inside the slots (401). The two sides are provided with inner grooves (402) that communicate with the slot (401). A clamping slide plate (5) is slidably connected in the inner groove (402). A compression spring (6) is fixed between the clamping slide plate (5) and the bottom of the inner groove (402). A stepper motor (7) is installed on the top of the tooling base (1). A lead screw (8) is connected to the output end of the stepper motor (7). A limit plate (9) is connected to the outer side of the lead screw (8). The limit plate (9) is located above the positioning plate (4).

2. The positioning and clamping fixture for welding an automotive spoiler according to claim 1, characterized in that: Multiple linear actuators (10) are provided at the lower corner of the tooling base (1), and the telescopic ends of the linear actuators (10) are fixed to the bottom of the tooling base (1).

3. The positioning and clamping fixture for welding an automotive spoiler according to claim 2, characterized in that: The top of the lead screw (8) is fixed with a positioning top plate (11), and the bottom of the positioning top plate (11) is equipped with a contact switch (13) that can contact the limiting pressure plate (9). The contact switch (13) is electrically connected to the stepper motor (7) and the linear driver (10).

4. The positioning and clamping fixture for welding an automotive spoiler according to claim 3, characterized in that: The tooling base (1) is also fixed with a vertical rod (12) that is slidably connected to the limiting pressure plate (9), and the vertical rod (12) is fixed to the positioning top plate (11).

5. The positioning and clamping fixture for welding an automotive spoiler according to claim 1, characterized in that: The two clamping slides (5) have beveled edges at their tops near each other to facilitate the insertion of the spoiler wing.

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