A weight measuring device for chassis production

Abstract

The utility model relates to the production technical field of chassis, especially for a weight measuring equipment is used in chassis production, including frame, be provided with measuring mechanism on the frame and be used for chassis weight measurement, and measuring mechanism includes: weighing assembly, set up on the frame and be used for weighing the chassis, bearing assembly, set up on the weighing assembly and be used for chassis rotation, jacking assembly, including setting up on the bearing assembly base, the rear end fixed with side frame on the base top, the side frame is installed with the carriage and slides in the lengthwise direction, the upper end fixed with mounting seat on the carriage, the front end rotatory mounting has the gyro wheel on the carriage, the front end horizontal slide installation has the locating inclined plate on the base top, the base top is fixed with mounting frame, and the mounting frame is installed with the pneumatic cylinder and is used for driving the locating inclined plate movement, place steadily through the lift, avoid the impact weighing platform, cooperate the rotation positioning function and make the chassis reach the best placement angle, ensure the even distribution of weight, both protect the equipment and improve the weighing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of chassis manufacturing technology, specifically to a weight measuring device for chassis manufacturing. Background Technology

[0002] In the automotive manufacturing industry, the chassis, as the core load-bearing component of a vehicle, directly affects the vehicle's performance indicators and safety factor. With the ever-increasing demands for production precision in the modern automotive industry, weight inspection during chassis production has become a crucial aspect of quality control, requiring specialized measuring equipment to achieve accurate and efficient weight data collection.

[0003] According to announcement number CN219511466U, a conveyor-type cargo volume and weight measuring device is disclosed. This technology discloses a technical solution including a measuring frame, which comprises a conveyor belt and a gantry rangefinder. The gantry rangefinder can reciprocate along the length of the conveyor belt. A measuring cavity is provided on the conveyor belt, which is placed within the measuring cavity. The gantry rangefinder includes a left fixed rod and a right fixed rod arranged in parallel, and a top rod connected at both ends to the left and right fixed rods respectively. A distance measuring device is provided on the top rod, and a light emitter and a light receiver are provided on the left and right fixed rods. This device achieves the technical effect of "placing the object to be measured on the conveyor belt and allowing it to enter the measuring cavity as the conveyor belt moves; the gantry rangefinder measures the size of the object; the distance measuring device on the top rod measures the height of the object; and the light emitter and light receiver on the left and right fixed rods measure the lengths of the other two sides of the object, thereby obtaining the volume and size of the object."

[0004] When the chassis is placed directly onto the weighing platform by a hoisting device, the instantaneous impact force during the fall will cause mechanical damage to the weighing sensor and the conveying mechanism. This rigid contact not only affects the weighing accuracy but also shortens the service life of the measuring equipment. This problem is particularly prominent on production lines that frequently measure heavy chassis. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a weight measuring device for chassis production. By lifting, the chassis can be placed stably, avoiding impact on the weighing platform. Combined with a rotation positioning function, the chassis can be placed at the optimal angle, ensuring even weight distribution, thus protecting the equipment and improving weighing accuracy.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a weight measuring device for chassis production, comprising a frame, wherein a measuring mechanism is mounted on the frame for measuring chassis weight, the measuring mechanism comprising:

[0007] A weighing assembly, mounted on the frame, is used to weigh the chassis.

[0008] The load-bearing component is mounted on the weighing component and is used for chassis rotation;

[0009] The lifting assembly includes a base mounted on a support assembly. A side frame is fixed to the rear top of the base. A carriage is slidably mounted longitudinally on the side frame. A mounting seat is fixed to the upper end of the carriage. A roller is rotatably mounted to the front end of the carriage. A positioning ramp is slidably mounted laterally to the front top of the base. A mounting bracket is fixed to the top of the base. A cylinder is mounted on the mounting bracket and used to drive the positioning ramp to move.

[0010] Preferably, the bearing assembly includes a base plate fixed to the lower end of the frame, a base fixed to the top of the base plate, a top plate fixed to the top of the mounting base, a cam divider mounted on the top of the top plate, and a cross bracket fixed to the upper output end of the cam divider.

[0011] Preferably, the load-bearing assembly further includes guide rods fixed at the four corners of the bottom of the top plate, and the guide rods are slidably installed through the bottom plate.

[0012] Preferably, the lifting assembly further includes a longitudinal slider fixed to the front end of the side frame, a longitudinal guide rail slidably mounted on the longitudinal slider, and a slide block fixed on the longitudinal guide rail. A transverse guide rail is fixed to the front end of the top of the base, a transverse slider slidably mounted on the transverse guide rail, and a mounting bracket fixed on the transverse slider.

[0013] Preferably, the weighing assembly further includes a roller conveyor mounted above the frame, with balance bars fixed at the four bottom corners of the roller conveyor and the balance bars being slidably mounted through the frame. Strain gauge sensors are mounted at the four top corners of the frame, and the roller conveyor is fixed on the strain gauge sensors.

[0014] Preferably, the inclined surface of the positioning plate has an inclination angle of 30°, and the inclined surface is tangentially matched with the rolling trajectory of the roller. The output end of the cylinder is connected to the positioning plate through a floating joint.

[0015] Beneficial effects

[0016] This utility model provides a weight measuring device for chassis production. Compared with the prior art, it has the following advantages:

[0017] 1. The positioning inclined plate is moved laterally by the output end of the cylinder. The inclined surface of the positioning inclined plate contacts the roller, which drives the slide to slide longitudinally along the side frame, causing the mounting base and the top plate fixed on it to rise. Then, the cross bracket is lifted by the cam divider. The chassis can be placed stably on the cross bracket by the hoisting equipment to avoid direct impact on the roller conveyor of the weighing component. Then, the output end of the cylinder retracts, which drives the positioning inclined plate to move in the opposite direction. The roller slides down the inclined surface, which drives the cross bracket to descend slowly. Finally, the chassis is gently placed on the roller conveyor, reducing impact damage and improving measurement stability and equipment life.

[0018] 2. After the chassis is hoisted onto the cross bracket, the cam divider starts working, driving the cross bracket to rotate at a preset angle, so that the chassis reaches the optimal placement position relative to the axis of the roller conveyor; after the rotation positioning is completed, the lifting component begins to descend. At this time, the chassis is at the ideal angle and can smoothly transition onto the conveying surface of the roller conveyor. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the weighing component in this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the load-bearing component in this utility model;

[0022] Figure 4 This is a schematic diagram of the lifting component in this utility model.

[0023] In the diagram: 1. Frame; 2. Measuring mechanism; 21. Weighing assembly; 211. Roller conveyor; 212. Balance bar; 213. Strain gauge sensor; 22. Bearing assembly; 221. Base plate; 222. Top plate; 223. Cam divider; 224. Cross bracket; 225. Guide rod; 23. Lifting assembly; 231. Base; 232. Side frame; 233. Slide carriage; 234. Mounting seat; 235. Roller; 236. Positioning ramp; 237. Mounting bracket; 238. Cylinder; 239. Longitudinal slider; 2310. Longitudinal guide rail; 2311. Transverse guide rail; 2312. Transverse slider. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a weight measuring device for chassis production, including a frame 1, on which a measuring mechanism 2 is mounted for measuring chassis weight, the measuring mechanism 2 including:

[0026] Weighing assembly 21 is mounted on frame 1 and used to weigh the chassis;

[0027] The load-bearing component 22 is mounted on the weighing component 21 and is used for chassis rotation;

[0028] The lifting assembly 23 includes a base 231 mounted on the bearing assembly 22. A side frame 232 is fixed to the rear end of the top of the base 231. A slide 233 is longitudinally slidably mounted on the side frame 232. A mounting base 234 is fixed to the upper end of the slide 233. A roller 235 is rotatably mounted to the front end of the slide 233. A positioning ramp 236 is laterally slidably mounted to the front end of the top of the base 231. A mounting bracket 237 is fixed to the top of the base 231. A cylinder 238 is mounted on the mounting bracket 237 and is used to drive the positioning ramp 236 to move.

[0029] In this embodiment, the output end of the cylinder 238 pushes the positioning inclined plate 236 to move laterally. The inclined surface of the positioning inclined plate 236 contacts the roller 235, causing the slide 233 to slide longitudinally along the side frame 232, which raises the mounting base 234 and the top plate 222 fixed thereon. Then, the cam divider 223 drives the cross bracket 224 to be lifted. The chassis can be placed stably on the cross bracket 224 by the hoisting equipment, avoiding direct impact on the roller conveyor 211 of the weighing component 21. Then, the output end of the cylinder 238 retracts, causing the positioning inclined plate 236 to move in the opposite direction. The roller 235 slides down the inclined surface, causing the cross bracket 224 to descend slowly. Finally, the chassis is gently placed on the roller conveyor 211, reducing impact damage and improving measurement stability and equipment life.

[0030] Specifically, the load-bearing component 22 includes a base plate 221 fixed inside the lower end of the frame 1, and a base 231 fixed on the top of the base plate 221. A top plate 222 is fixed on the top of the mounting base 234. A cam divider 223 is installed on the top of the top plate 222. A cross bracket 224 is fixed on the upper output end of the cam divider 223.

[0031] In this embodiment, after the chassis is hoisted onto the cross bracket 224, the cam divider 223 starts working, driving the cross bracket 224 to rotate at a preset angle, so that the chassis reaches the optimal placement position relative to the axis of the roller conveyor 211; after the rotation positioning is completed, the lifting component 23 begins to descend, at which point the chassis is at the ideal angle and can smoothly transition onto the conveying surface of the roller conveyor 211.

[0032] Specifically, the load-bearing component 22 also includes guide rods 225 fixed at the four corners of the bottom of the top plate 222, and the guide rods 225 are slidably installed through the bottom plate 221.

[0033] In this embodiment, when the lifting assembly 23 drives the top plate 222 to rise and fall, the guide rod 225 slides smoothly in the guide hole of the bottom plate 221, effectively constraining the horizontal displacement of the top plate 222 and preventing tilting or shaking caused by load eccentricity or external interference.

[0034] Specifically, the lifting assembly 23 also includes a longitudinal slider 239 fixed to the front end of the side frame 232. A longitudinal guide rail 2310 is slidably mounted on the longitudinal slider 239, and the slide 233 is fixed on the longitudinal guide rail 2310. A transverse guide rail 2311 is fixed to the front end of the top of the base 231. A transverse slider 2312 is slidably mounted on the transverse guide rail 2311, and the mounting bracket 237 is fixed on the transverse slider 2312.

[0035] In this embodiment, the longitudinal slider 239 installed at the front end of the side frame 232 forms a sliding pair with the longitudinal guide rail 2310, ensuring that the slide 233 moves smoothly and without jamming in the vertical direction; at the same time, the cooperation between the transverse guide rail 2311 and the transverse slider 2312 set at the top of the base 231 enables the mounting frame 237 to drive the cylinder 238 and the positioning inclined plate 236 to move accurately in the horizontal direction.

[0036] Specifically, the weighing assembly 21 also includes a roller conveyor 211 mounted on the frame 1. Each of the four bottom corners of the roller conveyor 211 is fixed with a balance bar 212, and the balance bar 212 is slidably mounted through the frame 1. Each of the four top corners of the frame 1 is equipped with a strain gauge sensor 213, and the roller conveyor 211 is fixed on the strain gauge sensor 213.

[0037] In this embodiment, when the chassis is smoothly lowered onto the roller conveyor 211 via the cross bracket 224, the guiding effect of the balance bar 212 ensures that the load is evenly distributed on the four strain gauge sensors 213. This four-point symmetrical weighing layout not only improves the measurement accuracy, but also automatically compensates for the slight off-center load when the chassis is placed, enabling the strain gauge sensors 213 to accurately sense the true weight of the chassis.

[0038] Specifically, the inclined plane of the positioning plate 236 has an inclination angle of 30°, and the inclined plane is tangentially matched with the rolling trajectory of the roller 235. The output end of the cylinder 238 is connected to the positioning plate 236 through a floating joint.

[0039] The working principle and usage process of this utility model are as follows: First, the positioning inclined plate 236 is pushed to move laterally by the output end of the cylinder 238. The inclined surface of the positioning inclined plate 236 contacts the roller 235, which drives the slide 233 to slide longitudinally along the side frame 232, so that the mounting base 234 and the top plate 222 fixed on it are raised. Then, the cross bracket 224 is lifted by the cam divider 223. The chassis can be placed stably on the cross bracket 224 by the hoisting equipment to avoid direct impact on the roller conveyor 211 of the weighing component 21.

[0040] Then, after the chassis is hoisted onto the cross bracket 224, the cam divider 223 starts working, driving the cross bracket 224 to rotate at a preset angle, so that the chassis reaches the optimal placement position relative to the axis of the roller conveyor 211; after the rotation positioning is completed, the lifting component 23 begins to descend. At this time, the chassis is at the ideal angle and can smoothly transition onto the conveying surface of the roller conveyor 211; and by driving the cross bracket 224 to descend slowly, the chassis is gently placed on the roller conveyor 211, reducing impact damage and improving measurement stability and equipment life;

[0041] Finally, after the chassis is smoothly lowered onto the roller conveyor 211 via the cross bracket 224, the guiding effect of the balance bar 212 ensures that the load is evenly distributed on the four strain gauge sensors 213. This four-point symmetrical weighing layout not only improves the measurement accuracy, but also automatically compensates for the slight off-center load when the chassis is placed, enabling the strain gauge sensors 213 to accurately sense the true weight of the chassis.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A weight measuring device for chassis production, comprising a frame (1), characterized in that: The frame (1) is equipped with a measuring mechanism (2) for measuring the chassis weight. The measuring mechanism (2) includes: Weighing assembly (21) is mounted on frame (1) and used for weighing chassis; The load-bearing component (22) is mounted on the weighing component (21) and used for chassis rotation; The lifting assembly (23) includes a base (231) mounted on the bearing assembly (22). A side frame (232) is fixed to the rear end of the top of the base (231). A slide (233) is longitudinally slidably mounted on the side frame (232). A mounting seat (234) is fixed to the upper end of the slide (233). A roller (235) is rotatably mounted on the front end of the slide (233). A positioning ramp (236) is laterally slidably mounted on the front end of the top of the base (231). A mounting bracket (237) is fixed to the top of the base (231). A cylinder (238) is mounted on the mounting bracket (237) and used to drive the positioning ramp (236) to move.

2. The weight measuring device for chassis production according to claim 1, characterized in that: The bearing assembly (22) includes a base plate (221) fixed inside the lower end of the frame (1), and a base (231) fixed on the top of the base plate (221). A top plate (222) is fixed on the top of the mounting base (234), and a cam divider (223) is installed on the top of the top plate (222). A cross bracket (224) is fixed on the upper output end of the cam divider (223).

3. The weight measuring device for chassis production according to claim 2, characterized in that: The load-bearing component (22) also includes guide rods (225) fixed at the four corners of the bottom of the top plate (222), and the guide rods (225) are slidably installed through the bottom plate (221).

4. The weight measuring device for chassis production according to claim 1, characterized in that: The lifting assembly (23) also includes a longitudinal slider (239) fixed to the front end of the side frame (232), a longitudinal guide rail (2310) is slidably mounted on the longitudinal slider (239), and a slide (233) is fixed on the longitudinal guide rail (2310). A transverse guide rail (2311) is fixed to the front end of the top of the base (231), a transverse slider (2312) is slidably mounted on the transverse guide rail (2311), and a mounting bracket (237) is fixed on the transverse slider (2312).

5. The weight measuring device for chassis production according to claim 1, characterized in that: The weighing assembly (21) also includes a roller conveyor (211) disposed above the frame (1). The roller conveyor (211) has a balance bar (212) fixed at each of the four bottom corners, and the balance bar (212) is slidably installed through the frame (1). The frame (1) has a strain gauge sensor (213) installed at each of the four top corners, and the roller conveyor (211) is fixed on the strain gauge sensor (213).

6. The weight measuring device for chassis production according to claim 1, characterized in that: The inclined surface of the positioning ramp (236) has an inclination angle of 30°, and the inclined surface is tangentially matched with the rolling trajectory of the roller (235). The output end of the cylinder (238) is connected to the positioning ramp (236) through a floating joint.

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