A frame welding and lifting device for vending truck production

Abstract

The present application relates to the field of welding technology, and discloses a frame welding and lifting device for sales truck production, which includes a base, a supporting plate, a lifting mechanism and a clamping mechanism, wherein the supporting plate is slidably arranged on the base, the lifting mechanism is connected to the base, the lifting mechanism is connected to the supporting plate to drive the supporting plate to rise and fall, the clamping mechanism is connected to the supporting plate, and the clamping mechanism is used to clamp the frame plate to be welded. The present application has the effect of improving the convenience of sales truck frame welding.

Description

Technical Field

[0001] The present application relates to the field of welding technology, and in particular to a frame welding and lifting device for producing a sales truck. Background Art

[0002] A sales truck is a mobile vehicle used to sell goods. It is usually equipped with space for displaying and storing goods, and can be used for sales activities in different locations. The design and configuration of sales trucks vary according to their use and needs. In order to meet the needs of daily sales, sales trucks are usually larger in size.

[0003] In the processing and manufacturing process of vending trucks, the frames of vending trucks are mostly welded from multiple frame plates. During the welding process, since the area of ​​each frame plate is relatively large, the workers need to constantly adjust the welding height to achieve the welding of two frame plates. When at a higher position, they also need to use corresponding tools to raise their position, which leads to the problem that the welding operation is relatively inconvenient during the welding process of the vending truck frame. Summary of the invention

[0004] In order to alleviate the problem of inconvenient welding operation during welding of a sales truck frame, the present application provides a frame welding and lifting device for sales truck production.

[0005] The present application provides a frame welding and lifting device for the production of a sales truck, which adopts the following technical solution:

[0006] A frame welding and lifting device for use in the production of sales trucks comprises a base, a supporting plate, a lifting mechanism and a clamping mechanism, wherein the supporting plate is slidably arranged on the base, the lifting mechanism is connected to the base, the lifting mechanism is connected to the supporting plate to drive the supporting plate to rise and fall, the clamping mechanism is connected to the supporting plate, and the clamping mechanism is used to clamp the frame plate that needs to be welded.

[0007] By adopting the above technical solution, when the frame needs to be welded, the clamping mechanism is used to clamp the two frame plates at the same time, and then the staff only needs to stand at a higher position and then start the lifting mechanism. As the lifting mechanism lifts the supporting plate, the supporting plate can drive the two frame plates to rise slowly, so that the staff can weld the frame at a specific position, thereby improving the convenience of frame welding.

[0008] Preferably, the clamping mechanism is provided with two groups, and the two groups of the clamping mechanisms are respectively located near the opposite sides of the supporting plate, and each group of the clamping mechanism includes two clamping frames, one of which is fixedly connected to the supporting plate, and the other clamping frame is slidably connected to the supporting plate, and the clamping frame slidably connected to the supporting plate slides in a direction close to or away from the other clamping frame.

[0009] By adopting the above technical solution, two frame plates are clamped respectively by two clamping frames, and then the sliding clamping frames are pushed to move so that the two frame plates abut against each other, and then the two frame plates can be welded, ensuring that the two frame plates are welded in a fitted state, thereby ensuring the quality of welding.

[0010] Preferably, a pushing mechanism is provided on the support plate, and the pushing mechanism includes a driving member and a pushing rod, the middle part of the pushing rod is rotatably connected to the support plate, the driving member is connected to the support plate, and the driving member is connected to the pushing rod to drive the pushing rod to rotate, and the two clamping frames slidably connected to the support plate are fixedly connected to top plates, and the two ends of the pushing rod are respectively abutted against the two top plates, when the driving member drives the pushing rod to rotate, the pushing rod will push one of the top plates to move, and when the driving member drives the pushing rod to rotate, the pushing rod will push the other top plate to move.

[0011] By adopting the above technical solution, the driving member drives the push rod to rotate, so that the push rod can push the top plate, and then push the two frame plates in the same group to abut against each other. At the same time, the driving member drives the push rod to move back, so that the push rod can push the other group of frame plates on the other side to abut against each other.

[0012] Preferably, the lifting mechanism is a first electric push cylinder, which is fixedly connected to the base, and a push block is fixedly connected to the piston rod of the first electric push cylinder. The support plate is rotatably connected to the push block, and a power piece is provided on the push block, which is connected to the support plate to drive the support plate to rotate.

[0013] By adopting the above technical solution, the supporting plate is rotatably connected to the push block. After one group of frame plates is welded, the two groups of frame plates can be switched by driving the supporting plate to rotate using a power member, and then the other group of frame plates can be welded, thereby further improving the convenience of welding the frame plates.

[0014] Preferably, the pushing rod is a V-shaped rod, and tightening rods are passed through both ends of the pushing rod. Each of the tightening rods is slidably connected to the pushing rod, and a first spring is arranged between each of the tightening rods and the pushing rod, and the first spring applies an outward thrust to the tightening rod.

[0015] By adopting the above technical solution, the pushing rod is set as a V-shaped rod. When the welding of one group of frame plates is completed, the pushing rod is driven to rotate and push another group of frame plates to abut against it, and the sliding limit of the frame plate connected to the welded frame plate is contacted. The tightening rod will apply an outward thrust to the welded frame plate. By applying the thrust, it is possible to detect whether the previous group of frame plates that have been welded will be broken or damaged, so that the welding strength of the previous group can be detected simultaneously.

[0016] Preferably, a controller is provided on the support plate, pressure sensors are installed at both ends of the push rod, the two first springs are arranged in one-to-one correspondence with the two pressure sensors, one end of the first spring away from the tightening rod is fixedly connected to the pressure sensor, and the two pressure sensors are electrically connected to the controller.

[0017] By adopting the above technical solution, the pressure sensor can detect the thrust applied by the jacking rod to the welded frame plate, and detect whether the welded frame plate can withstand the designed pressure.

[0018] Preferably, a smoke treatment mechanism is provided on the base, and the smoke treatment mechanism includes a bracket, a flip assembly, a fan and an intake pipe. The bracket is rotatably connected to the base, and the bracket is located on one side of the support plate. The flip assembly is connected to the base, and the flip assembly is connected to the bracket to drive the bracket to rotate in a direction close to or away from the support plate. The fan is fixedly connected to the bracket, one end of the intake pipe is connected to the fan, and the other end of the intake pipe is located near the welding point of the frame plate.

[0019] By adopting the above technical solution, when welding the frame plate, the fan is started, the smoke generated at the welding position can be sucked through the suction pipe and then discharged from one side, thereby reducing the amount of smoke inhaled into the body of the workers; when it is necessary to drive the support plate to rotate, the flip assembly is used to drive the bracket to rotate, so that the bracket can drive the suction pipe to rotate to one side of the support plate, thereby avoiding obstruction to the support plate driving the frame plate to rotate.

[0020] Preferably, the flip assembly includes a second gear, a second rack and a second spring, the second gear is fixedly connected to the bracket, the rotation axis of the second gear is colinear with the rotation axis of the bracket, the second rack is slidably connected to the supporting plate, the second rack is meshingly connected to the second gear, the second spring is arranged between the base and the second rack, the second spring applies an upward thrust to the second rack, and the second rack is located below the supporting plate. When the supporting plate moves down until it abuts against the second rack, it continues to move downward to press the second rack downward, and the second gear moves downward to drive the bracket to rotate in a direction away from the supporting plate.

[0021] By adopting the above technical solution, during the upward movement of the supporting plate, the second rack is in an upward movement state pushed by the second spring. At this time, the bracket is located close to the supporting plate through the second rack and the second gear, so that the air inlet of the intake pipe is located close to the welding point; when a group of frame plates are welded, the second rack can be pressed downward during the process of driving the supporting plate to move downward, and the second rack will drive the bracket to rotate in the direction away from the supporting plate, so that the bracket drives the intake pipe to rotate to one side of the supporting plate, and then drives the supporting plate to rotate, which can avoid the intake pipe from hindering the rotation of the two groups of frame plates, and realize the automatic coordination of the intake pipe and the supporting plate.

[0022] Preferably, a marking detection mechanism is provided on the bracket, and the marking detection mechanism includes a pumping assembly and a containing barrel containing marking liquid, the containing barrel is provided on the bracket, the pumping assembly is connected to the bracket, and the pumping assembly is used to spray the marking liquid onto the welds of a group of frame plates that have been welded.

[0023] By adopting the above technical solution, when welding the next set of frame plates, the previous set of frame plates that have been welded will be rotated to the other side. During the welding process of the next set of frame plates, the previous set of frame plates that have been welded will rise, and the pumping component can spray the marking liquid onto the weld, and then observe whether there is liquid seepage, so as to detect whether there is any missing welding position.

[0024] Preferably, the pumping assembly includes an air outlet pipe and a liquid outlet pipe, the air outlet pipe is fixedly connected to the bracket, the air outlet pipe is communicated with the air outlet of the fan, a liquid outlet pipe is inserted on the containing barrel, the air outlet of the air outlet pipe and the liquid outlet of the liquid outlet pipe are arranged correspondingly, the air outlet of the air outlet pipe faces the welded frame plate weld, and the air flow ejection direction of the air outlet pipe is perpendicular to the liquid ejection direction of the liquid outlet pipe.

[0025] By adopting the above technical solution, during the welding process, when the fan is started to absorb the smoke, the airflow will be quickly discharged from the air outlet of the air outlet pipe, and the airflow will pass through the liquid outlet of the liquid outlet pipe during the discharge process. According to the Bernoulli principle, the pressure at the liquid outlet of the liquid outlet pipe will be reduced, and the marking liquid in the container will be sprayed out from the liquid outlet pipe under the action of atmospheric pressure, and form water mist under the action of airflow and sprayed on the weld of the frame plate, so that the marking liquid can be evenly sprayed to the welding of the frame plate with the welding of the next group. When the welding of one group of frame plates is completed, the welding is stopped, and the spraying of the marking liquid on the previous group of frame plates will also be stopped synchronously.

[0026] In summary, this application at least includes the following beneficial technical effects:

[0027] By setting the supporting plate to be liftable, when the frame needs to be welded, the worker only needs to stand at a higher position and start the lifting mechanism. As the lifting mechanism lifts the supporting plate, the supporting plate can drive the two frame plates to rise slowly, so that the worker can weld the frame at a specific position, thereby improving the convenience of frame welding.

[0028] By setting one of the clamping frames to a sliding setting, when the frame plates of the sales truck are being welded, the clamping frame with the sliding setting is pushed to move so that the two frame plates abut against each other, and the two frame plates can be welded, ensuring that the two frame plates are welded in a fitted state, thereby ensuring the quality of welding;

[0029] By arranging a fan and an air suction pipe on the bracket, when welding the frame plate, the fan can be started to absorb the smoke generated at the welding position through the air suction pipe and then discharged from one side, thereby reducing the amount of smoke inhaled into the body of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0031] Figure 2 is a schematic diagram of the structure of the clamping frame in an embodiment of the present application;

[0032] Figure 3 It is a structural schematic diagram of the driving mechanism in the embodiment of the present application;

[0033] Figure 4 It is a structural schematic diagram of the linkage rod in the embodiment of the present application;

[0034] Figure 5 is a schematic diagram of the structure of the driving member in the embodiment of the present application;

[0035] Figure 6 is a schematic cross-sectional structure diagram of a push rod in an embodiment of the present application;

[0036] Figure 7 It is a schematic diagram of the structure of the power component in the embodiment of the present application;

[0037] Figure 8 is a structural schematic diagram of a flue gas treatment mechanism in an embodiment of the present application;

[0038] Fig. 9 yes Figure 8 A schematic diagram of the enlarged structure of part A;

[0039] Fig.10 It is a structural schematic diagram of a marking detection mechanism in an embodiment of the present application;

[0040] Fig.11 It is a schematic diagram of the structure of the pumping assembly in the embodiment of the present application.

[0041] Figure numerals: 100, base; 200, lifting mechanism; 210, first electric push cylinder; 220, push block; 230, power member; 231, first motor; 232, power gear; 300, support plate; 400, clamping mechanism; 410, clamping frame; 420, connecting rod; 500, pushing mechanism; 510, pushing rod; 511, rotating rod; 520, driving member; 521, hydraulic cylinder; 522, first rack; 523, first gear Wheel; 530, top plate; 540, tightening rod; 550, first spring; 560, pressure sensor; 600, smoke treatment mechanism; 610, bracket; 620, fan; 630, suction pipe; 640, flip assembly; 641, second gear; 642, second rack; 643, second spring; 700, mark detection mechanism; 710, containing barrel; 720, pumping assembly; 721, air outlet pipe; 722, liquid outlet pipe; 800, ground. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-11 This application is described in further detail.

[0043] The embodiment of the present application discloses a frame welding and lifting device for producing a sales truck.

[0044] Reference Figure 1 and Figure 2 A frame welding lifting device for the production of a sales truck includes a base 100, and a lifting mechanism 200 includes the base 100. The base 100 is fixedly connected to the ground 800, and the lifting mechanism 200 is installed on the base 100. In this embodiment, the lifting mechanism 200 is a first electric push cylinder 210, which is fixedly connected to the base 100. The first electric push cylinder 210 is vertically arranged, and a supporting plate 300 is installed on the piston rod of the first electric push cylinder 210. The first electric push cylinder 210 is used to push the supporting plate 300 up and down. In order to reasonably utilize the space on the ground 800, the base 100 can be embedded under the ground 800. When the supporting plate 300 is driven to fall to the lowermost end, the supporting plate 300 can be located close to the ground 800, thereby facilitating the loading and unloading of the frame plate.

[0045] Reference Figure 2 and Figure 3 Two groups of clamping mechanisms 400 are provided on the supporting plate 300. The two groups of clamping mechanisms 400 are respectively located near the opposite sides of the supporting plate 300. Each group of clamping mechanisms 400 can clamp a group of frame plates that need to be welded.

[0046] Reference Figure 2 , Figure 3 and Figure 4Each set of clamping mechanisms 400 includes two clamping frames 410, and the two clamping frames 410 are located in the same plane. Both clamping frames 410 can clamp a frame plate. One of the clamping frames 410 is fixedly connected to the supporting plate 300, and the other clamping frame 410 is slidably connected to the supporting plate 300. The clamping frame 410 slidably connected to the supporting plate 300 slides in a direction close to or away from the other clamping frame 410.

[0047] The clamping frame 410 slidably connected to the supporting plate 300 is provided with a connecting rod 420, and the connecting rod 420 can be slidably connected to the clamping frame 410 through which it is provided, and a threaded section is provided on the connecting rod 420, and the clamping frame 410 through which the connecting rod 420 is provided has a thread matched with the threaded section on the connecting rod 420, and the connecting rod 420 is inserted into the clamping frame 410, and then the connecting rod 420 is rotated to connect and fix the connecting rod 420 with the clamping frame 410 through which it is provided. The clamping frame 410 fixedly connected to the supporting plate 300 is provided with a sliding hole adapted to the connecting rod 420, and the connecting rod 420 can be inserted into the sliding hole.

[0048] The connecting rod 420 is twisted to fix the connecting rod 420 with the clamping frame 410 slidably connected to the supporting plate 300, and the connecting rod 420 is inserted into the clamping frame 410 fixedly connected to the supporting plate 300, and then the connecting rod 420 can guide the sliding of the clamping frame 410. After the two clamping frames 410 clamp the two frame plates respectively, the clamping frame 410 slidably connected to the supporting plate 300 is pushed to move, so that the two frame plates can be pressed against each other, thereby ensuring the welding strength of the two frame plates.

[0049] Reference Figure 3 and Figure 5 In order to realize automatic pushing of the frame plate, a pushing mechanism 500 is provided on the supporting plate 300, and the pushing mechanism 500 includes a driving member 520 and a pushing rod 510. The plane where the pushing rod 510 is located is parallel to the supporting plate 300. The pushing rod 510 is rotatably connected to the supporting plate 300 through a rotating rod 511, and the rotation axis of the pushing rod 510 is perpendicular to the plane where the supporting plate 300 is located.

[0050] The driving member 520 includes a hydraulic cylinder 521, which is fixedly connected to the supporting plate 300. The piston rod of the hydraulic cylinder 521 is fixedly connected to the first rack 522. The piston rod of the hydraulic cylinder 521 is extended and retracted to drive the first rack 522 to slide. The rotating rod 511 is coaxially fixedly connected to the first gear 523, and the first rack 522 is meshed with the gear. The clamping frame 410 slidably connected to the supporting plate 300 is fixedly connected to the top plate 530, and the free end of the push rod 510 can abut against the top plate 530 to push the clamping frame 410 to slide.

[0051] In this embodiment, two pushing rods 510 are provided. In other embodiments, multiple pushing rods 510 can be provided. The multiple pushing rods 510 can be arranged at intervals along the length direction of the rotating rod 511, so as to ensure that sufficient thrust can be applied to the entire frame plate.

[0052] Reference Figure 5 , Figure 6 and Figure 7 A push block 220 is fixedly connected to the piston rod of the first electric push cylinder 210, and the supporting plate 300 is rotatably connected to the push block 220 through a rotating shaft. A power member 230 is installed on the push block 220. In this embodiment, the power member 230 is a first motor 231, and the first motor 231 is fixedly connected to the push block 220. The main shaft of the first motor 231 is coaxially fixedly connected with a power gear 232, and another power gear 232 is coaxially fixedly connected to the rotating shaft. The two power gears 232 are meshed and connected. The first motor 231 and the power gear 232 can be used to drive the supporting plate 300 to rotate, so that one group of frame plates can be welded, and another group of frame plates can continue to be welded.

[0053] Reference Figure 5 , Figure 6 and Figure 7 The push rod 510 is a V-shaped rod, the middle position of the push rod 510 is coaxially fixedly connected to the rotating rod 511, and the two free ends of the push rod 510 are respectively abutted against the top plate 530 fixed by the two clamping frames 410 slidably connected to the supporting plate 300.

[0054] Both ends of the pushing rod 510 are penetrated by tightening rods 540, each of which is slidably connected to the pushing rod 510, and the tightening rod 540 slides along its own length direction. Two pressure sensors 560 are fixedly connected inside the pushing rod 510, and the two pressure sensors 560 are respectively located near the two ends of the pushing rod 510. Each pressure sensor 560 is provided with a first spring 550, one end of the first spring 550 is fixedly connected to the pressure sensor 560, and the other end of the first spring 550 is fixedly connected to its corresponding tightening rod 540. The first spring 550 applies an outward thrust to the tightening rod 540, and a controller is installed on the support plate 300. The two pressure sensors 560 are electrically connected to the controller, and the controller is also electrically connected to the hydraulic cylinder 521.

[0055] By utilizing the V-shaped setting of the push rod 510 and utilizing the hydraulic cylinder 521 to drive the push rod 510 to rotate, the top plate 530 can be pushed to slide through the tension rod 540, thereby driving the frame plate clamped by the clamping frame 410 to slide, thereby improving the tightness of the abutment of the two frame plates. After welding a group of frame plates, the connecting rod 420 is pulled out from the fixed connection on the clamping frame 410, and then the welded frame plate is rotated to the side away from the staff, and then the push rod 510 is driven to reverse and push the next group of frame plates to abut. The tension rod 540 will apply an outward thrust to the welded frame plate. Whether a group of frame plates will break after welding is completed by applying thrust detection, the magnitude of the applied thrust will be detected by the pressure sensor 560 and transmitted to the controller. When no damage occurs within the rated thrust range, it means that the welding strength is qualified.

[0056] Reference Figure 2 and Figure 8 In the process of welding the frame, smoke and dust are inevitably generated. After the smoke and dust are inhaled by the human body, it will affect the health of the workers. For this reason, a smoke treatment mechanism 600 is provided on the base 100, and the smoke treatment mechanism 600 includes a bracket 610, and the bracket 610 is fixedly connected to the base 100. The bracket 610 is located on one side of the supporting plate 300. An intake pipe 630 is fixedly connected to the bracket 610. One end of the intake pipe 630 extends to a position close to the welding point of the frame plate, and the other end of the intake pipe 630 is connected to the fan 620, and the fan 620 is fixedly connected to the bracket 610.

[0057] Reference Figure 2 , Figure 8 and Fig. 9 The bottom of the bracket 610 is rotatably connected to the base 100 through a flip rod, and the bracket 610 flips in a direction close to or away from the base 100. A flip assembly 640 is installed on the base 100, and the flip assembly 640 is used to drive the bracket 610 to flip.

[0058] The flip assembly 640 includes a second gear 641, which is coaxially fixedly connected to the flip rod, and a second rack 642 is slidably connected to the base 100. The second rack 642 is vertically arranged, and the sliding direction of the second rack 642 is parallel to the lifting direction of the supporting plate 300. The second rack 642 is located below the supporting plate 300. A second spring 643 is arranged between the second rack 642 and the supporting plate 300, and one end of the second spring 643 is fixedly connected to the base 100, and the other end of the second spring 643 is fixedly connected to the bottom of the second rack 642. The second spring 643 applies an upward thrust to the supporting plate 300. When the supporting plate 300 is lifted, the second rack 642 will slide upward under the push of the second spring 643, thereby driving the bracket 610 to flip in the direction close to the supporting plate 300 through the second gear 641. The support plate 300 is then driven to rotate, and the suction pipe 630 is driven to rotate to a position close to the welding point of the frame plate. The support plate 300 is then driven to be lifted and welded. The suction pipe 630 can absorb the smoke generated by the welding. When the welding of one group of plates is completed, the first electric push cylinder 210 drives the support plate 300 to move downward. When the support plate 300 abuts against the second rack 642, it continues to move downward, pressing the second rack 642 to move downward, so that the second rack 642 drives the second gear 641 to reverse, and then drives the support plate 610 to rotate in the direction away from the support plate 300, so that the support plate 300 is driven to rotate, so that the suction pipe 630 is avoided. Obstruction to the rotation of the two groups of frame plates caused by the suction pipe 630 realizes the automatic coordination between the suction pipe 630 and the support plate 300.

[0059] Reference Fig.10 and Fig.11 In order to detect the welding quality of the frame plate, a marking detection mechanism 700 is provided on the bracket 610. The marking detection mechanism 700 includes a container 710 rotatably connected to the bracket 610. The container 710 contains a marking liquid. The container 710 maintains a vertical state under the gravity of itself and the marking liquid. In this embodiment, the marking liquid is a fluorescent solution. A pumping assembly 720 is provided on the bracket 610. The pumping assembly 720 includes an air outlet pipe 721 fixedly connected to the bracket 610. One end of the air outlet pipe 721 is connected to the air outlet end of the fan 620. The other end of the air outlet pipe 721 bypasses the two sets of clamping frames 410 and faces the weld of the frame plate after welding. A liquid outlet pipe 722 is inserted into the containing barrel 710 and fixedly connected to the containing barrel 710 . The liquid outlet of the liquid outlet pipe 722 is located near the air outlet of the air outlet pipe 721 . The air flow direction of the air outlet pipe 721 is perpendicular to the liquid flow direction of the liquid outlet pipe 722 .

[0060] After a group of frame plates are welded, the welded frame plates can be driven to rotate to the side away from the welding position, and then the next group of frame plates are welded. The fan 620 is started to absorb the smoke generated by welding, and then quickly discharged from the outlet of the gas outlet pipe 721. The airflow will pass through the outlet of the liquid outlet pipe 722 during the discharge process, which will reduce the pressure at the outlet of the liquid outlet pipe 722. The marking liquid in the container 710 will be sprayed from the liquid outlet pipe 722 under the action of atmospheric pressure, and form water mist under the action of the airflow to spray on the frame plate weld. As the frame plate is lifted, the marking liquid can be evenly sprayed on the frame plate welding. When a group of frame plates is welded, the welding is stopped, and the spraying of the marking liquid on the previous group of frame plates will also be stopped synchronously. Then the staff uses a fluorescent fixture to illuminate the back of the weld on the other side of the frame plate to observe whether the marking liquid seeps out, so as to detect whether there is a welding omission position. At the same time, the water mist formed can also absorb the smoke in the smoke. In other embodiments, a pumping pipeline may be provided on the support 610 to replenish the solution in the containing barrel 710 .

[0061] The implementation principle of the frame welding and lifting device for the production of a sales truck in the embodiment of the present application is as follows: when welding the frame of the sales truck, since the base 100 is arranged below 800 degrees from the ground, the supporting seat can be lowered to a lower position, thereby facilitating the loading and unloading of the frame plate. In actual use, a lifting platform can be set up on one side of the supporting plate 300, and the staff can stand on the lifting platform to weld from the highest point of the frame plate, and then start the first electric push cylinder 210. As the welding pushes the frame plate to rise, the frame plates can be welded step by step. The staff only needs to stand in a specific position, thereby improving the convenience of frame welding. At the same time, the fan 620 can absorb the generated smoke and dust and discharge it from the other end, and spray the marking liquid on the upper group of welded frame plates by cooperating with the liquid outlet pipe 722 to detect whether there are omissions in the welding of the frame plates.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A frame welding and lifting device for vending truck production, characterized in that: The vehicle frame (100) comprises a base (100), a supporting plate (300), a lifting mechanism (200) and a clamping mechanism (400), wherein the supporting plate (300) is slidably arranged on the base (100), the lifting mechanism (200) is connected to the base (100), the lifting mechanism (200) is connected to the supporting plate (300) to drive the supporting plate (300) to rise and fall, and the clamping mechanism (400) is connected to the supporting plate (300), and the clamping mechanism (400) is used to clamp a frame plate that needs to be welded; The clamping mechanism (400) is provided in two groups, and the two groups of the clamping mechanism (400) are respectively located near two opposite sides of the supporting plate (300), and each group of the clamping mechanism (400) comprises two clamping frames (410), wherein one clamping frame (410) is fixedly connected to the supporting plate (300), and the other clamping frame (410) is slidably connected to the supporting plate (300), and the clamping frame (410) slidably connected to the supporting plate (300) slides in a direction approaching or away from the other clamping frame (410); The supporting plate (300) is provided with a pushing mechanism (500), the pushing mechanism (500) comprising a driving member (520) and a pushing rod (510), the middle portion of the pushing rod (510) being rotatably connected to the supporting plate (300), the driving member (520) being connected to the supporting plate (300), the driving member (520) being connected to the pushing rod (510) to drive the pushing rod (510) to rotate, and two sliding members being connected to the supporting plate (300) ) are fixedly connected to the top plates (530), and the two ends of the push rod (510) are respectively in contact with the two top plates (530). When the driving member (520) drives the push rod (510) to rotate, the push rod (510) will push one of the top plates (530) to move. When the driving member (520) drives the push rod (510) to reverse, the push rod (510) will push the other top plate (530) to move. The lifting mechanism (200) is a first electric push cylinder (210), the first electric push cylinder (210) is fixedly connected to the base (100), a push block (220) is fixedly connected to the piston rod of the first electric push cylinder (210), the support plate (300) is rotatably connected to the push block (220), a power piece (230) is provided on the push block (220), and the power piece (230) is connected to the support plate (300) to drive the support plate (300) to rotate; The push rod (510) is a V-shaped rod, and both ends of the push rod (510) are provided with a tightening rod (540), each of the tightening rods (540) is slidably connected to the push rod (510), and a first spring (550) is provided between each of the tightening rods (540) and the push rod (510), and the first spring (550) applies an outward thrust to the tightening rod (540); A controller is provided on the support plate (300), pressure sensors (560) are installed at both ends of the push rod (510), the two first springs (550) and the two pressure sensors (560) are provided in one-to-one correspondence, one end of the first spring (550) away from the tightening rod (540) is fixedly connected to the pressure sensor (560), and the two pressure sensors (560) are electrically connected to the controller.

2. A frame welding and lifting device for producing a sales truck according to claim 1, characterized in that: A smoke treatment mechanism (600) is arranged on the base (100), and the smoke treatment mechanism (600) comprises a bracket (610), a flip assembly (640), a fan (620) and an air intake pipe (630); the bracket (610) is rotatably connected to the base (100); the bracket (610) is located at a side of the support plate (300); the flip assembly (640) is connected to the base (100); the flip assembly (640) is connected to the bracket (610) to drive the bracket (610) to rotate in a direction approaching or moving away from the support plate (300); the fan (620) is fixedly connected to the bracket (610); one end of the air intake pipe (630) is connected to the fan (620); and the other end of the air intake pipe (630) is located near a welding point of a frame plate.

3. The frame welding and lifting device for producing a sales truck according to claim 2, characterized in that: The flip assembly (640) comprises a second gear (641), a second rack (642) and a second spring (643); the second gear (641) is fixedly connected to the bracket (610); the rotation axis of the second gear (641) is colinear with the rotation axis of the bracket (610); the second rack (642) is slidably connected to the support plate (300); the second rack (642) is meshedly connected to the second gear (641); the second spring (643) is arranged on the support plate (300); Between the base (100) and the second rack (642), the second spring (643) applies an upward thrust to the second rack (642), and the second rack (642) is located below the supporting plate (300). When the supporting plate (300) moves down until it abuts against the second rack (642), it continues to move downward to press the second rack (642) downward, and the second gear (641) moves downward to drive the bracket (610) to rotate in a direction away from the supporting plate (300).

4. The frame welding and lifting device for producing a sales truck according to claim 2, characterized in that: The bracket (610) is provided with a marking detection mechanism (700), the marking detection mechanism (700) comprising a pumping assembly (720) and a container barrel (710) containing a marking liquid, the container barrel (710) being provided on the bracket (610), the pumping assembly (720) being connected to the bracket (610), and the pumping assembly (720) being used to spray the marking liquid onto the weld seams of a previous group of frame plates that have been welded.

5. The frame welding and lifting device for producing a sales truck according to claim 4, characterized in that: The pumping assembly (720) comprises an air outlet pipe (721) and a liquid outlet pipe (722); the air outlet pipe (721) is fixedly connected to the bracket (610); the air outlet pipe (721) is communicated with an air outlet of the fan (620); a liquid outlet pipe (722) is inserted into the containing barrel (710); the air outlet of the air outlet pipe (721) is arranged corresponding to the liquid outlet of the liquid outlet pipe (722); the air outlet of the air outlet pipe (721) faces a weld seam of a frame plate that has been welded; and the air flow ejection direction of the air outlet pipe (721) is perpendicular to the liquid ejection direction of the liquid outlet pipe (722).

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