Spot welding equipment for automobile parts

Abstract

The utility model discloses automobile part spot welding equipment which comprises at least two X-shaped welding tongs, a first driving device used for controlling the X-shaped welding tongs to linearly move in the first direction and a second driving device used for controlling the X-shaped welding tongs to linearly move in the second direction, and the first direction is perpendicular to the second direction. According to the spot welding equipment for the automobile parts, the plurality of X-shaped welding tongs are arranged to carry out welding work at the same time, so that the welding work efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile parts production equipment, specifically, the utility model relates to an automobile parts spot welding equipment. BACKGROUND

[0002] The assembly part composed of multiple sheet metal parts on the automobile needs to be connected by spot welding equipment to two parts of the assembly part during assembly.

[0003] The Chinese patent with the application number 201410159999.4 discloses an automobile floor automatic welding device, which comprises support legs, a Y-direction support plate assembly installed on the upper end of the support legs, an X-direction support plate assembly installed on the upper end of the Y-direction support plate assembly, a transformer support plate installed on the upper end of the X-direction support plate assembly, an X-shaped welding clamp installed on the upper end of the transformer support plate, and a transformer installed on the upper end of the transformer support plate and connected with the X-shaped welding clamp, and a Y-direction sliding mechanism is arranged between the X-direction support plate assembly and the Y-direction support plate assembly, and an X-direction sliding mechanism is arranged between the transformer support plate and the X-direction support plate assembly and is arranged perpendicularly to the Y-direction sliding mechanism.

[0004] It is desired to provide an improved automobile parts spot welding equipment, in particular, regarding how to improve the welding work efficiency. UTILITY MODEL CONTENTS

[0005] The utility model provides an automobile parts spot welding equipment, and aims at improving the welding work efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model takes the technical scheme that the automobile parts spot welding equipment comprises an X-shaped welding clamp, a first driving device for controlling the X-shaped welding clamp to move linearly along a first direction and a second driving device for controlling the X-shaped welding clamp to move linearly along a second direction, the X-shaped welding clamp is arranged at least two, and the first direction and the second direction are perpendicular.

[0007] The X-shaped welding clamp comprises a base, a rotationally connected upper electrode arm assembly and lower electrode arm assembly and a protection device arranged on the base, and the protection device is located between the upper electrode arm assembly and the lower electrode arm assembly.

[0008] The protection device comprises a protection plate, the protection plate is located between the upper electrode arm assembly and the lower electrode arm assembly, and the protection plate is arranged on the base.

[0009] The protection plate is installed on the base through bolts, the both ends of the protection plate are provided with pads, and the bolts pass through the pads and the protection plate.

[0010] The first driving device comprises a first sliding plate, a first motor and a first transmission mechanism connected with the first motor and the first sliding plate, and the X-shaped welding clamp is arranged on the first sliding plate.

[0011] The number of the first driving devices is same as the number of the X-shaped welding tongs.

[0012] The second driving device comprises a second sliding plate, a second motor and a second transmission mechanism connected with the second motor and the second sliding plate, and the first motor and the first transmission mechanism are arranged on the second sliding plate.

[0013] A first telescopic cover is arranged between two adjacent first sliding plates, and the first transmission mechanism is located below the first telescopic cover.

[0014] The second sliding plate is provided with a second telescopic cover, and the second transmission mechanism is located below the second telescopic cover.

[0015] The automobile part spot welding equipment can improve the welding work efficiency through the setting of multiple X-shaped welding tongs for simultaneous welding work. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present specification includes the following drawings, and the shown contents are respectively:

[0017] Figure 1 is a structural schematic view of the automobile part spot welding equipment of the utility model;

[0018] Figure 2 is a top view of the automobile part spot welding equipment of the utility model;

[0019] Figure 3 is a partial structural schematic view of the automobile part spot welding equipment of the utility model;

[0020] In the drawing, 1 is a first sliding plate, 2 is a second sliding plate, 3 is a first telescopic cover, 4 is a second telescopic cover, 5 is a first motor, 6 is a chassis, 7 is an upper electrode arm body, 8 is a lower electrode arm body, 9 is a protection plate, 10 is a backing plate, 11 is a base, 12 is an end plate, 13 is a first transmission mechanism, and 14 is a second transmission mechanism. DETAILED DESCRIPTION

[0021] The specific embodiments of the utility model are further described in detail below by comparing the drawings and the description of the embodiments, the purpose is to help the technical personnel in the field to have more complete, accurate and deep understanding of the conception and technical scheme of the utility model, and to help its implementation.

[0022] As Figures 1 to 3The utility model provides a kind of automobile parts spot welding equipment, including chassis 6, X type welding tongs, first driving device for controlling X type welding tongs linear movement along first direction and second driving device for controlling X type welding tongs linear movement along second direction, X type welding tongs are at least provided two, first direction and second direction are both horizontal direction and first direction and second direction are perpendicular. By being provided with multiple X type welding tongs simultaneously to automobile parts welding work, welding work efficiency can be improved.

[0023] Specifically, as Figures 1 to 3 As shown, X type welding tongs include base 11, rotationally connected upper electrode arm assembly and lower electrode arm assembly, cylinder connected with upper electrode arm assembly and lower electrode arm assembly and protection device being set on base 11 and facing automobile parts, protection device is located between automobile parts and the rotationally connected part of upper electrode arm assembly and lower electrode arm assembly. When welding, upper electrode arm assembly is located above automobile parts, lower electrode arm assembly is located below automobile parts, the end of upper electrode arm assembly is provided with upper electrode, the end of lower electrode arm assembly is provided with lower electrode, and two automobile parts are spot-welded by the cooperation of upper electrode and lower electrode.

[0024] Protection device includes protection plate 9, and protection plate 9 is located between automobile parts and the rotationally connected part of upper electrode arm assembly and lower electrode arm assembly, and the material of protection plate 9 is metal, and the strength is high. As Figures 1 to 3 As shown, protection plate 9 is vertically arranged, and upper electrode arm assembly and lower electrode arm assembly are installed on base 11 by the same rotating shaft, the axis of rotating shaft is parallel to first direction, protection plate 9 is fixedly connected with base 11, and protection plate 9 shields rotating shaft. X type welding tongs are movably arranged, the length of automobile parts is relatively large, and the length direction of automobile parts is parallel to first direction. After placing automobile parts for virtual welding, when X type welding tongs move along second direction towards the position close to automobile parts, protection plate 9 can prevent automobile parts from contacting the connecting part of upper electrode arm assembly and lower electrode arm assembly, so as to avoid collision and damage to X type welding tongs. Even if protection plate 9 is impacted, it is easy to replace, and the cost is relatively low, so as to reduce the risk of collision of X type welding tongs, improve the service life and reliability of X type welding tongs.

[0025] As Figure 1 And Figure 3As shown in the drawings, the two ends of the length direction of the protection plate 9 are installed on the base 11 by the first bolt, the length direction of the protection plate 9 is parallel to the first direction, the two ends of the protection plate 9 are provided with the pad plate 10, the first bolt is screwed with the base 11 after passing through the pad plate 10 and the protection plate 9, the pad plate 10 and the protection plate 9 are provided with through holes for the first bolt to pass through, the protection plate 9 is clamped between the pad plate 10 and the base 11, and the pad plate 10 is in contact with the head of the first bolt. The main function of the pad plate 10 is to disperse the pressure of the head of the first bolt, prevent the protection plate 9 from being damaged due to the first bolt being too tight, and also increase the stability of the connection. The pad plate 10 can be made of materials with good compression resistance and wear resistance, such as high-strength steel plate or alloy material, to ensure that the pad plate 10 can withstand the pressure of the head of the first bolt for a long time without deformation.

[0026] As shown in the drawings, Figure 1 and Figure 3 The first driving device includes a first sliding plate 1, a first motor 5, and a first transmission mechanism 13 connected with the first motor 5 and the first sliding plate 1, and the base 11 of the X-shaped welding tongs is fixedly arranged on the first sliding plate 1. The second driving device includes a second sliding plate 2, a second motor, and a second transmission mechanism 14 connected with the second motor and the second sliding plate 2, and the first motor 5 and the first transmission mechanism 13 are arranged on the second sliding plate 2. The first motor 5 is connected with the first sliding plate 1 through the first transmission mechanism 13, the first sliding plate 1 is movably arranged on the second sliding plate 2, two first sliding rails for guiding the first sliding plate 1 are arranged on the second sliding plate 2, the first motor 5 is fixedly installed on the first sliding plate 1, and after the first motor 5 operates, power is transmitted to the first sliding plate 1 through the first transmission mechanism 13, so as to drive the first sliding plate 1 and the first driving device and the X-shaped welding tongs on the first sliding plate 1 to move linearly along the first direction, so that the X-shaped welding tongs moves along the length direction of the automobile part, and the automobile part is welded at different positions.

[0027] In the embodiment, the first transmission mechanism 13 is a screw nut mechanism, the nut of the screw nut mechanism is fixedly connected with the first sliding plate 1, the screw rod of the screw nut mechanism is fixedly connected with the output end of the first motor 5, and the axis of the screw rod of the screw nut mechanism is parallel to the second direction.

[0028] As preferred, the nut of the first transmission mechanism 13 is a trapezoidal nut, and the screw rod of the screw nut mechanism is a trapezoidal screw rod. The screw nut mechanism with such structure has good self-locking property, high precision and good stability, which helps to improve the accuracy of the position adjustment of the X-shaped welding tongs.

[0029] As shown in the drawings, Figure 1 and Figure 2As shown, the second motor is fixedly arranged on the chassis 6, and the second motor is connected with the second sliding plate 2 through the second transmission mechanism 14. The second sliding plate 2 is movably arranged on the chassis 6, and two second sliding rails for guiding the second sliding plate 2 are arranged on the chassis 6. The first motor 5 is fixedly installed on the second sliding plate 2. After the second motor operates, power is transmitted to the second sliding plate 2 through the second transmission mechanism 14, so as to drive the second sliding plate 2, the first driving device and the X-shaped welding tongs on the second sliding plate 2 to move linearly along the second direction, so that the X-shaped welding tongs approaches or moves away from the automobile parts.

[0030] In the embodiment, the second transmission mechanism 14 is a lead screw nut mechanism. The nut of the lead screw nut mechanism is fixedly connected with the second sliding plate 2, the lead screw of the lead screw nut mechanism is fixedly connected with the output end of the second motor, and the axis of the lead screw of the lead screw nut mechanism is parallel to the second direction.

[0031] As preferred, the nut of the second transmission mechanism 14 is a trapezoidal nut, and the lead screw of the lead screw nut mechanism is a trapezoidal screw. The lead screw nut mechanism with such a structure has good self-locking property, high precision and good stability, and is helpful to improve the accuracy of position adjustment of the X-shaped welding tongs.

[0032] As shown in FIGS. 1, 2 and 3, Figure 1 and Figure 2 A second telescopic cover 4 is arranged on the chassis 6, the second motor is located below the second telescopic cover 4, a part of the lead screw of the lead screw nut mechanism is located below the second telescopic cover 4, and the other part of the lead screw of the lead screw nut mechanism is located below the second sliding plate 2. The second telescopic cover 4 can be elongated and contracted along with the movement of the second sliding plate 2. One end of the second telescopic cover 4 is connected with the chassis 6, the other end of the second telescopic cover 4 is connected with a connecting piece, and the connecting piece is connected with the second sliding plate 2. The second telescopic cover 4 has a rectangular structure and is made of telescopic material. Along with the linear movement of the second sliding plate 2, the second telescopic cover 4 is synchronously contracted and elongated, so as to avoid that objects in the external environment fall on the lead screw and the motor, thereby playing a protection role.

[0033] As shown in FIGS. 1, 2 and 3, Figure 1 The connecting piece is installed on the second sliding plate 2 through fasteners formed by a plurality of second bolts and nuts. The end of the connecting piece is provided with a through hole through which the second bolt passes. The through hole is a waist-shaped hole. The second sliding plate 2 is provided with a mounting hole into which the second bolt is inserted. The nut is located below the second sliding plate 2. Each second bolt passes through one through hole. The length of the through hole provided at the lower end of the connecting piece is greater than the diameter of the second bolt. The through hole is horizontally arranged, and the length direction of the through hole is parallel to the second direction. The through hole is provided in a waist-shaped hole, so as to facilitate the installation of the second sliding plate 2 and the second telescopic cover 4 and to facilitate the guarantee of the installation accuracy of the second sliding plate 2 and the second telescopic cover 4.

[0034] As shown in FIGS. 1, 2 and 3, Figure 1As shown, the end of the second telescopic cover 4 is connected to the second sliding plate 2 through a plurality of connecting parts, and all the connecting parts are located on the same straight line parallel to the first direction.

[0035] The number of first drive devices is the same as the number of X-shaped welding tongs, and each first drive device is used to control the linear movement of an X-shaped welding tong along the first direction. An X-shaped welding tong is disposed on each first sliding plate 1, and all first sliding plates 1 are located on a common straight line parallel to the first direction. Each first motor 5 is connected to a first sliding plate 1 via a first transmission mechanism 13, and all first motors 5 are located on a common straight line parallel to the second direction.

[0036] like Figures 1 to 3 As shown, in this embodiment, there are two X-shaped welding tongs. End plates 12 are fixedly installed at both ends of the length direction of the first sliding plate 1. All first sliding plates 1 are located between the two end plates 12. A first telescopic cover 3 is set between two adjacent first sliding plates 1, and a first telescopic cover 3 is also set between the first sliding plate 1 and the adjacent end plate 12. The first transmission mechanism 13 is located below the first telescopic cover 3. The first telescopic cover 3 can extend and contract as the first sliding plate 1 moves. The two ends of the first telescopic cover 3 set between the two first sliding plates 1 are respectively connected to the two first sliding plates 1, and the two ends of the first telescopic cover 3 set between the first sliding plate 1 and the end plate 12 are respectively connected to the first sliding plate 1 and the end plate 12. The first telescopic cover 3 has a rectangular structure and is made of a telescopic material. As the first sliding plate 1 moves linearly, the first telescopic cover 3 is synchronously contracted and extended, preventing objects in the external environment from falling onto the lead screw and the motor, thereby protecting the first transmission mechanism 13.

[0037] The above description of the present invention is provided as an example, in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described method. Any non-substantial improvements made using the method concepts and technical solutions of the present invention, or any application of the above-described concepts and technical solutions of the present invention to other situations without modification, are all within the scope of protection of the present invention.

Claims

1. Auto parts spot welding equipment, characterized by: It comprises an X-shaped welding clamp, a first driving device for controlling the X-shaped welding clamp to move linearly along a first direction, and a second driving device for controlling the X-shaped welding clamp to move linearly along a second direction, at least two X-shaped welding clamps are provided, and the first direction and the second direction are perpendicular to each other; The first driving device includes a first sliding plate, a first motor, and a first transmission mechanism connected to the first motor and the first sliding plate, and the X-shaped welding clamp is arranged on the first sliding plate; The number of the first driving devices is the same as the number of the X-shaped welding clamps; The second driving device includes a second sliding plate, a second motor, and a second transmission mechanism connected to the second motor and the second sliding plate, and the first motor and the first transmission mechanism are arranged on the second sliding plate; A first telescopic cover is provided between two adjacent first sliding plates, and the first transmission mechanism is located below the first telescopic cover; The second sliding plate and the second telescopic cover, and the second transmission mechanism are located below the second telescopic cover.

2. The automotive parts spot welding equipment according to claim 1, characterized in that: The X-shaped welding clamp comprises a base, an upper electrode arm assembly and a lower electrode arm assembly which are rotatably connected, and a protective device arranged on the base, wherein the protective device is located between the upper electrode arm assembly and the lower electrode arm assembly.

3. The automotive parts spot welding equipment according to claim 2, characterized in that: The protection device includes a protection plate, which is located between the upper electrode arm assembly and the lower electrode arm assembly, and is arranged on the base.

4. The automotive parts spot welding equipment according to claim 3, characterized in that: The protection plate is mounted on the base by means of bolts. Pads are provided at both ends of the protection plate, and the bolts pass through the pads and the protection plate.

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