A clamping device for welding an electric vehicle frame

Abstract

The utility model belongs to the technical field of electric vehicle processing, and specifically discloses a clamping device for welding an electric vehicle frame, including a base plate, a support frame, a clamping structure and a driving mechanism. The support frame is installed on the base plate; the clamping mechanism includes two groups of clamping plates, one end of the clamping plate is rotatably installed on the support frame, the clamping plate is provided with a limit groove, and the two groups of limit grooves surround a space for clamping the electric vehicle frame; the driving mechanism is installed on the support frame, the driving mechanism is connected to the two groups of clamping plates, and the driving mechanism is used to drive the two groups of clamping plates to swing, so as to close to form a space for clamping the electric vehicle frame, or open to form an opening for the electric vehicle frame to be taken in and put out. When clamping, the clamping plate pushes the electric vehicle frame to the center, which can effectively resist the eccentricity of the electric vehicle frame, the support positioning accuracy is high, employees do not need manual calibration, and welding errors are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric vehicle processing, and in particular relates to a clamping device for welding an electric vehicle frame. Background Art

[0002] Electric vehicles include a load-bearing system, an energy system, a drive system, and a brake system, among which the load-bearing system includes an electric vehicle frame. The electric vehicle frame is one of the core components of an electric vehicle, supporting the weight of the vehicle body, riders, and all cargo, and assumes an important safety function. The electric vehicle frame is usually made by welding pipe materials, that is, the various parts of the electric vehicle frame are manufactured and assembled together mainly by welding. Therefore, in order to meet welding requirements, electric vehicle manufacturing factories are equipped with electric vehicle frame welding devices, and the quality of the frame welding device affects the welding quality.

[0003] The frame welding device of the prior art usually includes a robot automatic welding structure and a fixed structure, wherein the fixed structure of the body, one of the frame components, is usually a support table, and an arc-shaped groove is provided on the support table to support the body electric vehicle frame. A cylinder is provided next to the support table, and a pressing piece is provided at the output end of the cylinder to press the electric vehicle frame and cooperate with the arc-shaped groove to clamp the electric vehicle frame. However, there are the following problems: the pipe fittings of the body are divided into two groups, and the arc-shaped groove can only play a supporting role. When placing the electric vehicle frame, it usually shifts to one side, making it difficult to place it in the center. The pressing piece only presses the electric vehicle frame and cannot effectively adjust the center positioning of the electric vehicle frame. Therefore, the positioning error of this clamping method is relatively large, and employees need to manually calibrate the position, otherwise the welding error will be large. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provide a clamping device for welding an electric vehicle frame to solve the problem that the positioning error of the electric vehicle frame during welding of the electric vehicle body is relatively large and the employees need to manually calibrate the position.

[0005] The specific technical solutions are as follows:

[0006] A clamping device for welding an electric vehicle frame, comprising:

[0007] substrate;

[0008] A support frame, mounted on the substrate;

[0009] The clamping mechanism comprises two groups of clamping plates, one end of each clamping plate is rotatably mounted on the support frame, each clamping plate is provided with a limiting groove, and the two groups of limiting grooves enclose a space for clamping the frame of the electric vehicle; and

[0010] A driving mechanism is installed on the support frame, the driving mechanism is connected to the two groups of clamping plates, and the driving mechanism is used to drive the two groups of clamping plates to swing, so as to close to form a space for clamping the electric vehicle frame, or open to form an opening for the electric vehicle frame to be taken in and put out.

[0011] In one embodiment, the driving mechanism includes a driving source, two sets of racks and two sets of gears. The two sets of racks are symmetrically installed at the output end of the driving source. The gears meshing with the racks are respectively arranged on the support frame, and the gears are connected to the clamping plate.

[0012] In one embodiment, the support frame is provided with a working groove, the output end of the driving source is provided with a fixed block, the fixed block is slidably installed in the working groove, and the two groups of racks are respectively installed on both sides of the fixed block.

[0013] In one of the embodiments, the support frame is further provided with a slide groove connected to the working groove, and a boss corresponding to the slide groove is provided on the outer side of the fixed block, and the boss is slidably arranged in the slide groove.

[0014] In one of the embodiments, a plurality of grooves are arranged at intervals on the surface of the substrate, and a plurality of rolling bodies are also arranged on the substrate. The rolling bodies are rotatably installed in the grooves, and the rolling bodies are exposed on the surface of the substrate.

[0015] In one embodiment, the rolling element is a rotating wheel.

[0016] Beneficial effects of the utility model:

[0017] The above-mentioned clamping device for welding an electric vehicle frame is provided with two sets of clamping plates with limited slots on the support frame, and the clamping plates are connected to the driving structure. The driving mechanism drives the two sets of clamping plates to swing simultaneously to close and form a space for clamping the electric vehicle frame. When clamping, the clamping plates push the electric vehicle frame to the center, which can effectively resist the eccentricity of the electric vehicle frame, and the support positioning accuracy is high. Employees do not need to calibrate manually, which reduces welding errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 It is a structural schematic diagram of the clamping device for welding the frame of an electric vehicle of the utility model;

[0020] Figure 2 It is a front view of the clamping structure;

[0021] Figure 3It is a schematic diagram of the back side of the clamping structure;

[0022] Figure 4 This is an enlarged schematic diagram of point A.

[0023] Reference numerals:

[0024] 1-base plate, 11-groove, 12-rotating wheel, 13-rotating shaft, 2-support frame, 21-working groove, 22-slide groove, 3-clamping structure, 31-clamping plate, 311-limiting groove, 4-driving mechanism, 41-driving source, 411-fixed block, 42-rack, 43-gear, 44-transmission shaft. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0026] See also Figure 1 In one embodiment, a clamping device for welding an electric vehicle frame includes: a base plate 1, a support frame 2, a clamping structure 3 and a driving mechanism 4.

[0027] See also Figure 4 In one embodiment, the substrate 1 is fixedly mounted on the electric vehicle frame welding device by bolts. A plurality of grooves 11 are arranged at intervals on the upper surface of the substrate 1. The substrate 1 is also provided with a plurality of rolling bodies, each of which is provided with a rolling body. The rolling body is rotatably mounted in the groove 11, and the outer surface of the rolling body is exposed on the surface of the substrate 1.

[0028] Preferably, the rolling body is a rotating wheel 12. The base plate 1 is also provided with a rotating shaft 13, the rotating shaft 13 is rotatably installed in the groove 11, and the rotating wheel 12 is installed in the rotating shaft 13. After installation, the rotating wheel 12 is exposed on the surface of the base plate 1, so that when the electric vehicle frame is placed on the base plate 1, the rotating wheel 12 is tangentially in conflict with the surface of the tube of the electric vehicle frame. With the rotating wheel 12, during the clamping process, the electric vehicle frame slides on the rotating wheel 12, thereby facilitating the clamping structure 3 to push the electric vehicle frame. When removing the electric vehicle frame, the contact area between the electric vehicle frame and the base plate 1 is small, and the electric vehicle frame is easy to remove.

[0029] See also Figure 1 , Figure 2 and Figure 3 In one embodiment, the support frame 2 is mounted on the substrate 1, and the support frame 2 is vertically mounted on the lower surface of the substrate 1. Preferably, the support frame 2 and the substrate 1 are integrally formed.

[0030] In one embodiment, the clamping mechanism 3 includes two sets of clamping plates 31, one end of which is rotatably mounted on the support frame 2. The clamping plates 31 are provided with limiting grooves 311, and the two sets of limiting grooves 311 enclose a space for clamping the electric vehicle frame. In order to reduce the damage to the surface of the electric vehicle frame by the clamping plates 31 when in use, a rubber pad is bonded along the inner wall of the limiting groove 311.

[0031] In one embodiment, the driving mechanism 4 is installed on the support frame 2, and the driving mechanism 4 is connected to the two groups of clamping plates 31. The driving mechanism 4 is used to drive the two groups of clamping plates 31 to swing to close to form a space for clamping the frame, or open to form an opening for the electric vehicle frame to be taken in and put in.

[0032] Specifically, the driving mechanism 4 includes a driving source 41, two sets of racks 42 and two sets of gears 43. The two sets of racks 42 are symmetrically installed at the output end of the driving source 41, and gears 43 meshing with the racks 42 are respectively arranged on the support frame 2, and the gears 43 are connected to the clamping plate 31.

[0033] In order to enable the driving source 4 to move in a directional manner in the support frame 2, the support frame 2 is provided with a working slot 21, and a fixing block 411 is provided at the output end of the driving source 41. The fixing block 411 is slidably installed in the working slot 21, and two sets of racks 42 are respectively installed on both sides of the fixing block 411. Preferably, the driving source 4 is a cylinder.

[0034] On the basis of the above embodiment, further, in order to enable the driving source 4 to move in a stably oriented manner in the support frame 2, the support frame 2 is also provided with a slide groove 22 connected to the working groove 21, and a boss corresponding to the slide groove 22 is provided on the outer side of the fixed block 411, and the boss of the fixed block 411 is slidably set in the slide groove 22.

[0035] In one embodiment, the driving mechanism 4 further includes a transmission shaft 44, which is rotatably inserted into the support frame 2, and the gear 43 and the clamping plate 31 are installed in the transmission shaft 44. There are two groups of transmission shafts 44, and the two groups of transmission shafts 44 are sleeved in the support frame 2 at intervals. With this structure, the clamping plate 31 rotates coaxially with the gear 43, that is, when the gear 43 rotates, the clamping plate 31 is driven to swing, thereby realizing synchronous loosening or clamping of the electric vehicle frame. When clamping, the clamping plate 31 grabs the electric vehicle frame to effectively resist the eccentricity of the electric vehicle frame, and the support positioning accuracy is high, and the operator does not need to manually calibrate the position, thereby reducing welding errors.

[0036] When in use, the utility model device is fixed with bolts in advance at a suitable position of the electric vehicle frame welding device, the electric vehicle frame is placed on the base plate 1, the cylinder is started, the output end of the cylinder moves downward, drives the two sets of racks 42 to move downward, drives the gear 43 to rotate, and makes the two sets of clamping plates 31 swing relatively close, thereby pushing the electric vehicle frame to be clamped in the center, and then the electric vehicle frame is welded. After completion, the cylinder is started, the output end of the cylinder moves upward, makes the two sets of clamping plates 31 loosen the electric vehicle frame, and the employee removes the electric vehicle frame.

[0037] Beneficial effects of the utility model:

[0038] A clamping device for welding an electric vehicle frame is provided by arranging two groups of clamping plates 31 on a support frame 2, and limiting grooves 311 are provided on the opposite surfaces of the two groups of clamping plates 31. The clamping plates 31 are connected to a driving structure 4, and the driving mechanism 4 drives the two groups of clamping plates 31 to swing simultaneously to close and form a space for clamping the electric vehicle frame. When clamping, the clamping plates 31 push the electric vehicle frame to the center, which can effectively resist the eccentricity of the electric vehicle frame, support high positioning accuracy, work stably and reliably, and reduce welding errors. A rolling body is arranged on the substrate 1, and during the clamping process, the electric vehicle frame slides on the rolling body, so as to facilitate the clamping plates 31 to push the electric vehicle frame to the center. When removing the electric vehicle frame, it is easy to remove the electric vehicle frame.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A clamping device for welding an electric vehicle frame, characterized in that: include: substrate; A support frame, mounted on the substrate; The clamping mechanism comprises two groups of clamping plates, one end of each clamping plate is rotatably mounted on the support frame, each clamping plate is provided with a limiting groove, and the two groups of limiting grooves enclose a space for clamping the frame of the electric vehicle; and A driving mechanism is installed on the support frame, the driving mechanism is connected to the two groups of clamping plates, and the driving mechanism is used to drive the two groups of clamping plates to swing, so as to close to form a space for clamping the electric vehicle frame, or open to form an opening for the electric vehicle frame to be taken in and put out.

2. The clamping device for welding an electric vehicle frame according to claim 1, characterized in that: The driving mechanism includes a driving source, two sets of racks and two sets of gears. The two sets of racks are symmetrically installed at the output end of the driving source. The gears meshing with the racks are respectively arranged on the support frame, and the gears are connected to the clamping plate.

3. The clamping device for welding an electric vehicle frame according to claim 2, characterized in that: The support frame is provided with a working groove, the output end of the driving source is provided with a fixed block, the fixed block is slidably installed in the working groove, and the two groups of racks are respectively installed on both sides of the fixed block.

4. The clamping device for welding an electric vehicle frame according to claim 3, characterized in that: The support frame is also provided with a slide groove connected with the working groove, and a boss corresponding to the slide groove is provided on the outer side of the fixed block, and the boss is slidably arranged in the slide groove.

5. The clamping device for welding an electric vehicle frame according to claim 1, characterized in that: The surface of the substrate is provided with a plurality of grooves at intervals. The substrate is also provided with a plurality of rolling bodies. The rolling bodies are rotatably installed in the grooves, and the rolling bodies are exposed on the surface of the substrate.

6. The clamping device for welding an electric vehicle frame according to claim 5, characterized in that: The rolling element is a rotating wheel.

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