Electric vehicle head tube welding tool

Abstract

The utility model provides an electric vehicle head tube welding tool which comprises a supporting part and a positioning part. The supporting part comprises an I-shaped frame, a positioning cylinder base and a lifting structure, wherein the positioning cylinder base and the lifting structure are symmetrically arranged on the I-shaped frame. The lifting structure comprises a stand column, a cross arm and a groove-shaped inclined arm, and the positioning part comprises a first positioning assembly and a second positioning assembly located on the top of the first positioning assembly. According to the electric vehicle head tube welding tool, the positioning cylinder base serves as an insertion point of the head tube body, so that the head tube body is installed on the positioning cylinder base; and the head tube oblique beam slides along the groove-shaped oblique arm until the end part of the head tube oblique beam is propped against the side part of the head tube body. The first air cylinder and the second air cylinder are in linkage with the positioning column, the first positioning shaft and the second positioning shaft correspondingly so that the positioning column, the first positioning shaft and the second positioning shaft can press the head pipe body and the head pipe oblique beam correspondingly. Due to the symmetrical design of the tool, the two head pipe bodies and the head pipe oblique beam can be accurately positioned at the same time, and the problem that in the prior art, manual operation is low in efficiency is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of head pipe fixing tooling, in particular to a welding tooling for a head pipe of an electric vehicle. Background Art

[0002] The electric head tube is an important part of the electric vehicle, which is used to connect the handlebars and the front fork, and plays a role in support and steering. It is usually made of aluminum alloy or carbon fiber, with high strength and light weight.

[0003] There are many components in the frame of an electric vehicle, including the head tube assembly, left and right side tube assemblies, pedal assembly, tail assembly, etc. In the current production process of electric vehicle frames, each component is assembled separately and then welded one by one according to the process. For example, in the welding process of the head tube of an electric vehicle, the clamping and positioning operations are performed by manual quick clamps. The low degree of automation often leads to unbalanced welding rhythm problems, resulting in reduced production capacity. At the same time, it also leads to different frame quality, making it difficult to maintain a stable pass rate, and further improvement is needed.

[0004] Based on the above, the present application proposes a welding tool that is convenient for quickly positioning a head pipe assembly to solve the problem of low efficiency of existing manual clamps. Utility Model Content

[0005] The utility model provides an electric vehicle head pipe welding tool, which solves the problems mentioned in the above background technology.

[0006] The technical solution of the utility model is achieved in this way:

[0007] A welding tool for the head pipe of an electric vehicle comprises a supporting part and a positioning part; the supporting part comprises an I-frame and a positioning cylinder seat and a lifting structure symmetrically arranged on the I-frame; the lifting structure comprises a column, a cross arm and a slot-shaped oblique arm, the column is arranged on the I-frame on the side where adjacent positioning cylinder seats are separated, a cross arm is arranged on the column near the positioning cylinder seat, and a slot-shaped oblique arm is fixed between the cross arm and the column; the positioning part comprises a first positioning assembly and a second positioning assembly located at the top of the first positioning assembly; the first positioning assembly comprises a first cylinder fixed to the top of the I-frame and a cross plate arranged at the piston end of the top of the first cylinder, and positioning columns are arranged on both sides of the cross plate; the second positioning assembly comprises a second cylinder fixed to the top of the cross plate and a gantry arranged at the piston end of the top of the second cylinder, and the two bottom ends of the gantry are each fixed with a first positioning shaft and a second positioning shaft.

[0008] Furthermore, the upright column and the horizontal arm are fixed to form a vertical T-frame, and the groove-shaped oblique arm is arranged on one side of the T-frame.

[0009] Furthermore, the positioning column slides through the top of the I-shaped frame and its bottom corresponds to the top of the positioning cylinder seat.

[0010] Furthermore, the first positioning shaft slides through the horizontal plate, and the second positioning shaft slides through the horizontal plate and the top of the I-frame.

[0011] Furthermore, a first elastic member and a second elastic member are fixed to the outside of the first positioning shaft and the second positioning shaft respectively, and the first elastic member and the second elastic member are abutted against the bottom of the horizontal plate at one end away from being fixed to the positioning shaft.

[0012] Furthermore, the front and rear sides of the I-shaped frame are respectively provided with third cylinders, the two third cylinders are staggered and distributed obliquely, and the output ends thereof correspond to the tops of the two positioning cylinder seats respectively.

[0013] Furthermore, fourth cylinders are respectively provided on the left and right sides of the I-shaped frame, and the output ends of the two fourth cylinders correspond to the tops of the two positioning cylinder seats respectively.

[0014] Furthermore, the front and rear sides of the I-shaped frame are respectively provided with fifth cylinders, the directions of the two fifth cylinders are opposite and the output ends thereof correspond to the tops of the two positioning cylinder seats respectively.

[0015] Beneficial effects of the technical solution provided by this application:

[0016] The electric vehicle head tube welding tool uses the positioning cylinder seat as the insertion point of the head tube body, so that the head tube body is installed on the positioning cylinder seat; and the head tube diagonal beam slides along the groove-shaped diagonal arm until the end abuts against the side of the head tube body. The first cylinder and the second cylinder respectively link the positioning column, the first positioning shaft and the second positioning shaft to respectively press the head tube body and the head tube diagonal beam. Since the symmetrical design of the tooling can meet the simultaneous precise positioning of the two head tube bodies and the head tube diagonal beam, this helps to ensure the accuracy and consistency of welding, thereby improving the welding quality, solving the problem of low efficiency of manual operation in the prior art, speeding up the production cycle, and improving production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the welding tooling for the electric vehicle head pipe of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the electric vehicle head pipe welding tooling of the utility model.

[0020] In the figure: 100 I-beam, 110 positioning cylinder seat, 120 first positioning assembly, 121 first cylinder, 122 cross plate, 123 positioning column, 130 lifting structure, 131 column, 132 cross arm, 133 grooved inclined arm, 140 second positioning assembly, 141 second cylinder, 142 gantry, 143 first positioning shaft, 143a first elastic member, 144 second positioning shaft, 144a second elastic member; 150 third cylinder, 160 fourth cylinder, 170 fifth cylinder. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-2 , an electric vehicle head pipe welding tool, comprising a support part and a positioning part; the support part comprises an I-shaped frame 100 and a positioning cylinder seat 110 and a lifting structure 130 symmetrically arranged on the I-shaped frame 100; the lifting structure 130 comprises a column 131, a cross arm 132 and a groove-shaped oblique arm 133, the column 131 is arranged on the I-shaped frame 100 on the side away from the adjacent positioning cylinder seat 110, the column 131 is provided with a cross arm 132 near the positioning cylinder seat 110, and a groove-shaped oblique arm 133 is fixed between the cross arm 132 and the column 131; the positioning part comprises a first positioning group Part 120 and a second positioning component 140 located at the top of the first positioning component 120; the first positioning component 120 includes a first cylinder 121 fixed to the top of the I-frame 100 and a cross plate 122 arranged at the top piston end of the first cylinder 121, and positioning columns 123 are provided on both sides of the cross plate 122; the second positioning component 140 includes a second cylinder 141 fixed to the top of the cross plate 122 and a gantry 142 arranged at the top piston end of the second cylinder 141, and the bottom two of the gantry 142 are respectively fixed with a first positioning axis 143 and a second positioning axis 144.

[0023] The tooling can realize accurate positioning of the electric vehicle head pipe through the design of the support part and the positioning part. First, the head pipe is installed and supported by the support part, and then the installed head pipe is positioned and clamped by the positioning part.

[0024] Specifically, the supporting part of the tooling is composed of an I-frame 100, a positioning cylinder seat 110 and a lifting structure 130. The I-frame 100 provides basic support, and the positioning cylinder seat 110 is used for the head tube body, and the head tube body is inserted into the positioning cylinder seat 110; the setting of the column 131 and the cross arm 132 enables the upper half of the column 131 and the cross arm 132 to provide two connection points on both sides of the groove-shaped inclined arm 133. The column 131 and the cross arm 132 on the groove-shaped inclined arm 133 are obliquely set, so the head tube oblique beam can slide along the groove-shaped oblique arm 133 until it abuts against the head tube body to complete the installation. Subsequently, the first positioning component 120 of the positioning part acts on the cross plate 122 to move downward through the action of the first cylinder 121, and the downwardly moved cross plate 122 is linked to the positioning column 123, and the positioning column 123 is pressed and fixed on the top of the head pipe body after it moves downward; the second positioning component 140 acts on the gantry 142 to move downward through the action of the second cylinder 141, and the downwardly moved gantry 142 is linked to the first positioning axis 143 and the second positioning axis 144 to press and fix the side wall of the head pipe oblique beam and the angle between the head pipe oblique beam and the head pipe body respectively.

[0025] In some embodiments, the upright post 131 and the cross arm 132 are fixed to form a vertical T-frame, and the slot-shaped oblique arm 133 is mounted on one side of the T-frame. The T-frame structure provides a solid support point, which makes the head pipe welding tooling have higher stability during welding operations. This structural design helps to reduce the movement of the head pipe caused by vibration or external force, ensuring accuracy during the welding process. The design of the T-frame allows the slot-shaped oblique arm 133 to be flexibly mounted on one side of the T-frame, which means that it can be adjusted according to the specific shape and size of the head pipe to achieve the best support and positioning effect. This flexibility is crucial to adapt to electric vehicle head pipes of different models and sizes.

[0026] The slot-shaped diagonal arm 133 is mounted on one side of the T-frame, and its design allows the head tube diagonal beam to slide along the slot-shaped structure of the diagonal arm until it contacts the side of the head tube body. This design allows the head tube diagonal beam to achieve precise docking with the head tube body without directly contacting the column and the cross arm. During the welding process, the T-frame and the slot-shaped diagonal arm work together to ensure that the head tube diagonal beam is in the correct position. At the same time, by adjusting the cylinder and the positioning shaft, the head tube diagonal beam can be accurately pressed to ensure stability during welding.

[0027] In some embodiments, the positioning column 123 slides through the top of the I-shaped frame 100 and its bottom corresponds to the top of the positioning cylinder seat 110. The positioning column 123 slides in the I-shaped frame 100, so that the positioning column 123 is properly guided in the I-shaped frame 100 to ensure the stability and accuracy of the positioning column 123 during movement. The bottom of the positioning column 123 is designed to correspond to the top of the positioning cylinder seat 110, so that when the positioning column 123 slides, the head pipe body can be firmly fixed on the positioning cylinder seat 110, providing stable support for welding.

[0028] During the welding process, the piston movement of the first cylinder 121 can push the cross plate 122, and the positioning column 123 can slide through the cross plate 122 to accurately position the head pipe body, ensuring that the head pipe will not be displaced during the welding process.

[0029] In some embodiments, the first positioning shaft 143 slides through the cross plate 122, and the second positioning shaft 144 slides through the cross plate 122 and the top of the I-shaped frame 100. The sliding design of the first positioning shaft 143 and the second positioning shaft 144 allows them to move freely between the cross plate 122 and the top of the I-shaped frame 100, which provides a method for accurately controlling the position of the head pipe diagonal beam. By adjusting the position of the positioning shaft, the head pipe diagonal beam can be accurately positioned during the welding process.

[0030] During the welding process, the piston movement of the second cylinder 141 acts on the gantry 142 to move it downward, and then the head pipe diagonal beam is positioned through the first positioning shaft 143 and the second positioning shaft 144 .

[0031] In some embodiments, a first elastic member 143a and a second elastic member 144a are fixed to the outside of the first positioning shaft 143 and the second positioning shaft 144 respectively, and the first elastic member 143a and the second elastic member 144a abut against the bottom of the horizontal plate 122 at one end away from the positioning shaft.

[0032] The elastic member acts as a buffer between the positioning shaft and the cross plate 122, which can absorb the impact force that may be generated during welding, reduce the direct pressure on the head pipe diagonal beam and the positioning shaft, and extend the service life of the tooling. The elastic members 143a and 144a are outside the positioning shafts 143 and 144. When the second cylinder 141 pushes the gantry 142 to move downward, the elastic member will stretch accordingly, thereby generating an upward traction force on the positioning shaft. This traction force helps to maintain the stability of the positioning shaft, prevents it from deflecting under pressure, and ensures the precise positioning of the head pipe diagonal beam during welding.

[0033] During welding, if the gantry 142 moves downward excessively, the elastic members 143a and 144a can absorb part of the pressure to prevent the head tube beam from being subjected to excessive direct pressure, thereby avoiding displacement or damage to the head tube beam. By dispersing pressure and providing traction, the elastic members help reduce direct friction between the positioning shaft and the head tube beam, which can extend the service life of the tooling and reduce the maintenance and replacement frequency due to wear.

[0034] In some embodiments, the front and rear sides of the I-shaped frame 100 are respectively provided with third cylinders 150 , and the two third cylinders 150 are staggered and distributed obliquely, and the output ends thereof correspond to the tops of the two positioning cylinder seats 110 .

[0035] The action of the third cylinder 150 can clamp the outer side of the positioned head pipe body, and this clamping action can provide additional stability to ensure that the head pipe will not be displaced due to external force or vibration during the welding process, thereby ensuring the welding quality. The obliquely staggered third cylinders 150 can clamp the two head pipe bodies respectively.

[0036] In some embodiments, fourth cylinders 160 are respectively disposed on the left and right sides of the I-shaped frame 100 , and the output ends of the two fourth cylinders 160 correspond to the tops of the two positioning cylinder seats 110 .

[0037] The fourth cylinder 160 is provided to provide additional lateral support to the head tube body, which helps stabilize the head tube body during the welding process and when it is necessary to withstand lateral forces, such as when welding the head tube to other parts of the frame. When the fourth cylinder 160 is activated, its output end moves and contacts the outside of the head tube body, thereby applying a clamping force to the outside of the head tube body. This clamping force helps to keep the head tube body stable during the welding process.

[0038] In some embodiments, the front and rear sides of the I-shaped frame 100 are further provided with fifth cylinders 170 , respectively. The two fifth cylinders 170 are in opposite directions and the output ends thereof correspond to the tops of the two positioning cylinder seats 110 .

[0039] The fifth cylinder 170 is specifically provided to provide a clamping force on the side of the head pipe body away from the head pipe diagonal beam, which helps to enhance the overall stability of the head pipe during the welding process, especially when welding the head pipe diagonal beam, it can prevent the head pipe body from being offset due to uneven force. When the fifth cylinder 170 is activated, its output end moves and contacts the outside of the head pipe body, thereby applying a clamping force to the side of the head pipe body away from the head pipe diagonal beam. This clamping force helps to keep the head pipe in position during the welding process and ensure the accuracy of the welding.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric vehicle head pipe welding tool, comprising a supporting part and a positioning part; characterized in that: The support portion comprises an I-shaped frame (100), and a positioning cylinder seat (110) and a lifting structure (130) symmetrically arranged on the I-shaped frame (100); The lifting structure (130) comprises a column (131), a cross arm (132) and a slot-shaped oblique arm (133); the column (131) is arranged on an I-shaped frame (100) on a side away from an adjacent positioning cylinder seat (110); a cross arm (132) is arranged on the column (131) near the positioning cylinder seat (110); and a slot-shaped oblique arm (133) is fixed between the cross arm (132) and the column (131); The positioning portion comprises a first positioning component (120) and a second positioning component (140) located on top of the first positioning component (120); The first positioning assembly (120) comprises a first cylinder (121) fixed on the top of the I-shaped frame (100) and a transverse plate (122) arranged at the piston end of the top of the first cylinder (121), and positioning columns (123) are arranged on both sides of the transverse plate (122); The second positioning assembly (140) comprises a second cylinder (141) fixed on the top of the transverse plate (122) and a gantry (142) arranged at the top piston end of the second cylinder (141), and the first positioning shaft (143) and the second positioning shaft (144) are respectively fixed at the two bottom parts of the gantry (142).

2. The electric vehicle head pipe welding tool as claimed in claim 1, characterized in that: The upright column (131) and the horizontal arm (132) are fixed to form a vertical T-shaped frame, and the groove-shaped inclined arm (133) is erected on one side of the T-shaped frame.

3. The electric vehicle head pipe welding tool as claimed in claim 1, characterized in that: The positioning column (123) slides through the top of the I-shaped frame (100) and its bottom corresponds to the top of the positioning cylinder seat (110).

4. The electric vehicle head pipe welding tool as claimed in claim 1, characterized in that: The first positioning shaft (143) slides through the transverse plate (122), and the second positioning shaft (144) slides through the transverse plate (122) and the top of the I-beam frame (100).

5. The electric vehicle head pipe welding tool as claimed in claim 1, characterized in that: A first elastic member (143a) and a second elastic member (144a) are fixed to the outside of the first positioning shaft (143) and the second positioning shaft (144), respectively. The first elastic member (143a) and the second elastic member (144a) are abutted against the bottom of the horizontal plate (122) at one end away from the end fixed to the positioning shaft.

6. The electric vehicle head pipe welding tool as claimed in claim 1, characterized in that: The front and rear sides of the I-shaped frame (100) are respectively provided with third cylinders (150), the two third cylinders (150) are obliquely staggered and distributed, and the output ends thereof respectively correspond to the tops of the two positioning cylinder seats (110).

7. The electric vehicle head pipe welding tool as claimed in claim 1, characterized in that: The left and right sides of the I-shaped frame (100) are respectively provided with fourth cylinders (160), and the output ends of the two fourth cylinders (160) correspond to the tops of the two positioning cylinder seats (110) respectively.

8. The electric vehicle head pipe welding tool as claimed in claim 1, characterized in that: The front and rear sides of the I-shaped frame (100) are respectively provided with fifth cylinders (170), the two fifth cylinders (170) are in opposite directions and the output ends thereof correspond to the tops of the two positioning cylinder seats (110).

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