A main frame beam clamping mechanism of a welding robot

Abstract

The utility model relates to main vehicle frame crossbeam clamping equipment technical field, concretely is a kind of main vehicle frame crossbeam clamping mechanism of welding robot, the utility model includes supporting mechanism, still includes;Two symmetrical crossbeam clamping mechanisms are used to clamp main vehicle frame crossbeam;Crossbeam clamping mechanism includes support frame, and the both ends of support frame are fixedly connected with guide shaft, and slidingly connected with sliding plate on guide shaft, and the bottom of sliding plate is fixedly connected with the clamping plate of inverted step design;Push positioning mechanism, push positioning mechanism is set to one side of horizontal fixed link, the utility model is by before clamping main vehicle frame crossbeam, and the included angle formed between adjustment push rod in push positioning mechanism and reinforcing member push main vehicle frame crossbeam, the position of main vehicle frame crossbeam is adjusted, it is guaranteed that main vehicle frame crossbeam clamping mechanism can be clamped to the fixed position of main vehicle frame crossbeam each time clamping, it is guaranteed that subsequent transfer to main vehicle frame crossbeam cannot appear misplacement.

Description

Technical Field

[0001] This utility model relates to the technical field of main frame crossbeam clamping equipment, specifically a main frame crossbeam clamping mechanism for a welding robot. Background Technology

[0002] As a critical load-bearing structure of the entire vehicle, the manufacturing precision of the car frame directly affects the vehicle's safety, reliability, and assembly processability. The main frame is typically constructed by welding two longitudinal beams and several crossbeams. The crossbeams not only connect the left and right longitudinal beams and maintain the overall shape of the frame, but are also crucial components for bearing and transmitting various loads. To enhance the strength of the connection points, reinforcing members are usually welded to the top of both ends of the main frame crossbeams; these reinforcing members are welded to the longitudinal beams along with the crossbeams.

[0003] However, existing technologies have significant shortcomings: First, the crossbeam often experiences positional deviation after being positioned in the previous process, and conventional clamping mechanisms lack active correction functions, leading to unstable clamping accuracy during repeated clamping. This causes misalignment of the crossbeam when it overlaps with the longitudinal beam at the welding station, severely affecting welding quality. Second, considering the unique stepped cross-sectional structure of the main frame crossbeam, traditional planar grippers suffer from small contact area and insufficient friction, which can easily lead to workpiece slippage during high-speed transport, posing a safety hazard.

[0004] Therefore, there is an urgent need in this field for a dedicated clamping mechanism for main frame crossbeams, especially main frame crossbeams with reinforcements. This mechanism can actively correct and accurately position the crossbeam before clamping, and provide stable and reliable clamping force during transfer, thereby ensuring the accuracy and efficiency of subsequent welding processes. Utility Model Content

[0005] The purpose of this invention is to provide a main frame crossbeam clamping mechanism for a welding robot to solve the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A main frame crossbeam clamping mechanism for a welding robot includes a support mechanism and further includes;

[0008] Two symmetrically arranged crossbeam clamping mechanisms are used to clamp the main frame crossbeams;

[0009] The beam clamping mechanism includes a support frame, a guide shaft is fixedly connected between the two ends of the support frame, a sliding plate is slidably connected on the guide shaft, and a clamping plate with an inverted step design is fixedly connected to the bottom of the sliding plate.

[0010] The push positioning mechanism is located on one side of the transverse fixed rod. It includes a second bidirectional electric telescopic rod, with tilting push rods connected to both ends of the second bidirectional electric telescopic rod. One end of the tilting push rod is connected to an adjusting push rod, which is used to abut against the angle formed between the main frame crossbeam and the reinforcement.

[0011] Preferably, the support mechanism is located above the beam clamping mechanism, and includes a fixed plate. A vertical fixed rod is fixedly connected to the bottom of the fixed plate, and a horizontal fixed rod is fixedly connected to the bottom of the vertical fixed rod. The two ends of the horizontal fixed rod are fixedly connected to the two beam clamping mechanisms.

[0012] Preferably, an inclined auxiliary support link is fixedly connected between the vertical fixing rod and the horizontal fixing rod.

[0013] Preferably, a first bidirectional electric telescopic rod is installed on the top of the support frame, and both ends of the first bidirectional electric telescopic rod are connected to the sliding plate through movable connecting rods, which pass through the ends of the support frame.

[0014] Preferably, a fixing frame is fixedly installed on the top of the support frame, the first bidirectional electric telescopic rod is fixedly installed with the fixing frame, and both ends of the transverse fixing rod are fixedly connected to the fixing frame.

[0015] Preferably, a fixing sleeve is fixedly connected between the second bidirectional electric telescopic rod and the transverse fixed rod.

[0016] The beneficial effects of this utility model are:

[0017] This invention adjusts the position of the main frame crossbeam by using an adjusting push rod in the pushing and positioning mechanism to push the included angle formed between the main frame crossbeam and the reinforcement before clamping the main frame crossbeam. This ensures that the main frame crossbeam clamping mechanism can clamp the main frame crossbeam to a fixed position each time, preventing misalignment during subsequent transfer of the main frame crossbeam. Furthermore, the clamping plate is designed as a stepped surface adapted to the main frame crossbeam to increase friction during clamping and ensure stable clamping of the main frame crossbeam. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the main frame crossbeam in the prior art;

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a utility model Figure 1 Rear view of the transverse fixing rod;

[0022] Figure 4 This is a utility model Figure 2 A schematic diagram of the middle crossbeam clamping mechanism.

[0023] The attached figures are labeled as follows:

[0024] 1. Main frame crossbeam; 101. Reinforcing component; 102. Recessed support seat; 201. Support frame; 202. Guide shaft; 203. Sliding plate; 204. Clamping plate; 205. First bidirectional electric telescopic rod; 206. Fixing frame; 207. Movable connecting rod; 301. Fixing plate; 302. Vertical fixing rod; 303. Horizontal fixing rod; 304. Auxiliary support connecting rod; 401. Second bidirectional electric telescopic rod; 402. Fixing sleeve; 403. Tilt push rod; 404. Adjustment push rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 A main frame crossbeam clamping mechanism for a welding robot, used to clamp the main frame crossbeam 1 of a transport vehicle, wherein the main frame crossbeam 1 is as follows: Figure 1 As shown, the top of both ends of the main frame crossbeam 1 is fixedly connected with a reinforcement member 101, and both ends of the main frame crossbeam 1 are welded and fixed to the main frame longitudinal beams at both ends. The side of the reinforcement member 101 near the longitudinal beam is also welded and fixed to the main frame longitudinal beam, thereby improving the connection strength between the main frame crossbeam 1 and the main frame longitudinal beam. The two sides of the main frame crossbeam 1 are designed with a stepped shape, and both ends of it can be supported by the concave support seat 102. The concave support seat 102 is fixed, and both ends of the main frame crossbeam 1 rest in the concave part of the top of the concave support seat 102.

[0027] like Figures 2-4 The main frame crossbeam clamping mechanism includes a support mechanism, two symmetrically arranged crossbeam clamping mechanisms, and a pushing and positioning mechanism;

[0028] The crossbeam clamping mechanism is used to clamp the main frame crossbeam 1. It includes a support frame 201, with both ends of the support frame 201 bent downwards. Two guide shafts 202 are fixedly connected between the two ends of the support frame 201. Two sliding plates 203 are slidably connected on the guide shafts 202. A clamping plate 204 is fixedly connected to the bottom of the sliding plate 203. The guide shafts 202 can ensure the horizontal sliding of the sliding plate 203 and the clamping plate 204. The clamping plate 204 adopts an inverted step design, so that the two clamping plates 204 can completely fit the two sides of the main frame crossbeam 1, increasing the friction between the clamping plate 204 and the main frame crossbeam 1 during clamping.

[0029] A first bidirectional electric telescopic rod 205 and a fixing frame 206 are fixedly installed on the top of the support frame 201. The fixing frame 206 and the first bidirectional electric telescopic rod 205 are fixedly installed to improve the fixing strength of the first bidirectional electric telescopic rod 205. Both ends of the first bidirectional electric telescopic rod 205 are fixedly connected to downward bent movable connecting rods 207. The movable connecting rods 207 pass through the ends of the support frame 201 (the support frame 201 has openings at both ends to facilitate the passage of the movable connecting rods 207) and are fixedly connected to the sliding plate 203. By extending and retracting the first bidirectional electric telescopic rod 205, the sliding plate 203 and the clamping plate 204 can be moved horizontally through the movable connecting rods 207, thereby moving the clamped main frame crossbeam 1.

[0030] The support mechanism is located above the beam clamping mechanism and includes a fixed plate 301. The fixed plate 301 is fixed to an external transfer device, which transfers the fixed plate 301, the support mechanism, and the beam clamping mechanism. A vertical fixed rod 302 is fixedly connected to the bottom of the fixed plate 301, and a horizontal fixed rod 303 is fixedly connected to the bottom of the vertical fixed rod 302. The two ends of the horizontal fixed rod 303 are bent downward and fixedly connected to the fixed frame 206 in the two beam clamping mechanisms to provide support for the beam clamping mechanism. Two inclined auxiliary support rods 304 are fixedly connected between the vertical fixed rod 302 and the horizontal fixed rod 303 to enhance the support strength of the horizontal fixed rod 303 and the beam clamping mechanisms at both ends.

[0031] The push positioning mechanism is located on one side of the transverse fixed rod 303. It includes a second bidirectional electric telescopic rod 401. The second bidirectional electric telescopic rod 401 and the transverse fixed rod 303 are at the same height. Two fixed sleeves 402 are fixedly connected between the second bidirectional electric telescopic rod 401 and the transverse fixed rod 303. Inclined push rods 403 are fixedly connected to both ends of the second bidirectional electric telescopic rod 401. An adjustment push rod 404 is fixedly connected to one end of the inclined push rod 403. The adjustment push rod 404 abuts against the angle formed between the main frame crossbeam 1 and the reinforcement 101 for adjusting and positioning the main frame crossbeam 1.

[0032] Both the first bidirectional electric telescopic pole 205 and the second bidirectional electric telescopic pole 401 are powered by an external power source and controlled by an external control switch.

[0033] The working principle of the main frame crossbeam clamping mechanism of the welding robot provided by this utility model is as follows:

[0034] First, when the external transfer mechanism moves the main frame crossbeam clamping mechanism to above the main frame crossbeam 1, the second bidirectional electric telescopic rod 401 extends, pushing the tilting push rod 403 and the adjusting push rod 404. The two adjusting push rods 404 push the included angle formed between the main frame crossbeam 1 and the reinforcement 101, adjusting the position of the main frame crossbeam 1 so that the main frame crossbeam clamping mechanism can be relatively located in the middle position above the main frame crossbeam 1, ensuring the stable clamping of the main frame crossbeam 1, and the clamping position is the same each time, so that the position will not be in error during transfer;

[0035] Then the first bidirectional electric telescopic rod 205 retracts, causing the two sliding plates 203 to move closer to each other. The two sliding plates 203 then cause the two clamping plates 204 to move closer to each other, so that the stepped surfaces of the clamping plates 204 abut against both sides of the main frame crossbeam 1, thus clamping and fixing the main frame crossbeam 1.

[0036] Compared with related technologies, the main frame crossbeam clamping mechanism of the welding robot provided by this utility model has the following advantages:

[0037] This invention adjusts the position of the main frame crossbeam 1 by pushing the included angle formed between the main frame crossbeam 1 and the reinforcement member 101 with the adjusting push rod 404 in the pushing and positioning mechanism before clamping the main frame crossbeam 1. This ensures that the main frame crossbeam clamping mechanism can clamp the main frame crossbeam 1 to a fixed position each time, and ensures that there will be no misalignment when the main frame crossbeam 1 is moved in the future. Furthermore, the clamping plate 204 is designed as a stepped surface adapted to the main frame crossbeam 1 to increase the friction during clamping and ensure stable clamping of the main frame crossbeam 1.

[0038] 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 main frame crossbeam clamping mechanism for a welding robot, comprising a support mechanism, characterized in that, Also includes; Two symmetrically arranged crossbeam clamping mechanisms are used to clamp the main frame crossbeam (1); The beam clamping mechanism includes a support frame (201), a guide shaft (202) is fixedly connected between the two ends of the support frame (201), a sliding plate (203) is slidably connected on the guide shaft (202), and a clamping plate (204) with an inverted step design is fixedly connected to the bottom of the sliding plate (203). The push positioning mechanism is located on one side of the transverse fixed rod (303). It includes a second bidirectional electric telescopic rod (401). The two ends of the second bidirectional electric telescopic rod (401) are connected to tilting push rods (403). One end of the tilting push rod (403) is connected to an adjusting push rod (404). The adjusting push rod (404) is used to abut against the angle formed between the main frame crossbeam (1) and the reinforcement (101).

2. The main frame crossbeam clamping mechanism of a welding robot according to claim 1, characterized in that, The support mechanism is located above the beam clamping mechanism. It includes a fixed plate (301), a vertical fixed rod (302) is fixedly connected to the bottom of the fixed plate (301), a horizontal fixed rod (303) is fixedly connected to the bottom of the vertical fixed rod (302), and the two ends of the horizontal fixed rod (303) are fixedly connected to the two beam clamping mechanisms.

3. The main frame crossbeam clamping mechanism of a welding robot according to claim 2, characterized in that, An inclined auxiliary support link (304) is fixedly connected between the vertical fixed rod (302) and the horizontal fixed rod (303).

4. The main frame crossbeam clamping mechanism of a welding robot according to claim 2, characterized in that, A first bidirectional electric telescopic rod (205) is installed on the top of the support frame (201). The two ends of the first bidirectional electric telescopic rod (205) are connected to the sliding plate (203) through the movable connecting rod (207). The movable connecting rod (207) passes through the end of the support frame (201).

5. The main frame crossbeam clamping mechanism of a welding robot according to claim 4, characterized in that, A fixed frame (206) is fixedly installed on the top of the support frame (201), the first bidirectional electric telescopic rod (205) is fixedly installed with the fixed frame (206), and the two ends of the transverse fixed rod (303) are fixedly connected to the fixed frame (206).

6. The main frame crossbeam clamping mechanism of a welding robot according to claim 3, characterized in that, A fixing sleeve (402) is fixedly connected between the second bidirectional electric telescopic rod (401) and the transverse fixed rod (303).

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