Welding strength testing device based on automobile frame

Abstract

The utility model discloses a welding strength detection test device based on an automobile frame. The utility model relates to the field of automobile frame detection technology, including a fixed base, a detection mechanism is arranged on the top of the fixed base, and the detection mechanism includes: a lifting component arranged on the top of the fixed base, the lifting component includes a lifting plate, a driving component arranged on the top of the lifting plate, and a guiding component arranged on the top of the lifting plate. The guiding component includes a cylinder installed on the top of the lifting plate near the rear side through legs, and a fixed block fixedly installed on the top of the lifting plate near the left side, and a steel ball is placed inside the cylinder. The welding strength detection test device based on the automobile frame accelerates the steel ball in the cylinder and outputs the impact force through the straight hole in the fixed block, so that the entire impact test can be completed in a compact device, thereby reducing the occupancy rate of the device on the site.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile frame detection, in particular to a welding strength detection test device based on an automobile frame. Background Art

[0002] The car frame, also known as the body structure or frame, is an important component of the car. The car frame is mainly composed of four beams and eight pillars. The "four beams" usually refer to the front anti-collision beam, rear anti-collision beam, bottom side beam and upper side beam of the car. The "eight pillars" generally include the A-pillar, B-pillar, C-pillar (one on each side, a total of six pillars) and two center pillars (also called D-pillars). When designing and developing the car frame, it is often necessary to perform strength tests on the welds. Among them, the impact test is to detect the ability of the weld to absorb impact energy and the impact resistance by applying a sudden impact force.

[0003] Existing impact tests generally use a winch to pull the impact block to achieve accelerated impact. However, due to the presence of the traction rope of the traditional winch device, a larger operating space is required during operation, resulting in the need to occupy a larger production site, thereby increasing the cost of site rental or construction. For this reason, the utility model provides a welding strength detection test device based on the automobile frame. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a welding strength detection test device based on an automobile frame, which solves the problem that the traditional winch device requires a larger operating space during operation due to the presence of its traction rope, resulting in the need to occupy a larger production site.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a welding strength detection test device based on an automobile frame includes a fixed base, a detection mechanism is arranged on the top of the fixed base, and the detection mechanism includes:

[0006] A lifting assembly is arranged on the top of the fixed base, and the lifting assembly includes a lifting plate;

[0007] A driving assembly is arranged on the top of the lifting plate;

[0008] A guide assembly is arranged on the top of the lifting plate, the guide assembly comprises a cylinder installed on the top of the lifting plate near the rear side through legs, and a fixed block fixedly installed on the top of the lifting plate near the left side, a steel ball is placed inside the cylinder, a straight hole for accommodating the steel ball is opened on the right side of the fixed block, a slide rod slides through the left inner wall of the straight hole, an arc-shaped contact plate cooperating with the steel ball is fixedly connected to the right side of the slide rod, an impact block for impacting the frame is fixedly installed on the left side of the slide rod, and the cylinder is connected to the straight hole through the notch;

[0009] The release component is arranged on the top of the lifting platform.

[0010] Preferably, the driving assembly includes four limit columns fixedly mounted on the top of the lifting plate near the right side, a mounting plate is slidably arranged between the outer surfaces of the four limit columns, the driving assembly also includes a first cylinder fixedly mounted on the top of the lifting plate, and the telescopic end of the first cylinder is fixedly connected to the bottom of the mounting plate, a second motor is fixedly mounted on the top of the mounting plate, the output shaft end of the second motor movably passes through the bottom of the cylinder and extends to the top, a conical pressure plate is fixedly mounted on the output shaft end of the second motor, and the conical pressure plate is in contact with the steel ball.

[0011] Preferably, the release assembly includes a fixing frame fixedly installed on the top of the lifting plate near the rear side, a second cylinder is fixedly installed on the inner top of the fixing frame, a support plate is fixedly installed on the inner wall of the rear side of the fixing frame, a rectangular rod is slidably passed through the top of the support plate, a third cylinder is fixedly installed on the top of the support plate near the rear side, the telescopic rod of the third cylinder slides through the outer surface of the rectangular rod, a connecting plate is fixedly installed on the bottom of the rectangular rod, a tension spring is provided on the outer sleeve of the rectangular rod, both ends of the tension spring are respectively fixedly connected to the surfaces of the support plate and the connecting plate on opposite sides, a sealing plate is fixedly connected to the bottom of the connecting plate, and the sealing plate cooperates with the notch.

[0012] Preferably, a first speed sensor for monitoring the speed of the steel ball is installed on the outer wall of the cylinder, and a second speed sensor for monitoring the speed of the impact block is installed on the left outer surface of the fixed block.

[0013] Preferably, columns are fixedly installed on the top of the fixed base near the four corners, a top plate is fixedly installed between the ends of the four columns, and the outer walls of the columns slide through the outer surface of the lifting plate.

[0014] Preferably, the lifting assembly includes a first motor fixedly mounted on the top of the top plate, the output shaft end of the first motor movably passes through the top of the top plate and extends downward, the output shaft end of the first motor is fixedly mounted with a screw rod for driving the lifting plate to lift, and the bottom end of the screw rod is rotatably set on the top of the fixed base.

[0015] Beneficial Effects

[0016] The utility model provides a welding strength detection test device based on an automobile frame. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The welding strength detection test device based on the automobile frame drives the conical pressure plate to rotate faster through the second motor, driving the steel ball to continuously increase its speed. When the speed of the steel ball reaches the set value, the telescopic rod of the third cylinder retracts, and the tension spring quickly releases energy to quickly pull the sealing plate upward, so that the inner cavity of the cylinder is connected with the straight hole. The steel ball enters the straight hole under the action of centrifugal force and strongly impacts the arc contact plate, thereby causing the impact block to hit the designated position on the frame at an extremely high speed to complete the impact test. Since the steel ball in the device is accelerated in the cylinder and the impact force is output through the straight hole in the fixed block, the entire impact test can be completed in a compact device, thereby reducing the site occupancy rate of the device.

[0018] (2) The welding strength detection test device based on the automobile frame can monitor the speed of the steel ball through the first speed sensor, and can detect the impact speed of the impact block through the second speed sensor, so as to facilitate monitoring and adjustment of the test parameters. In addition, the first motor drives the screw rod to rotate, thereby adjusting the height of the lifting plate, so as to facilitate impact tests on different welding positions of the frame. The height of the conical pressure plate can be controlled by the extension and retraction of the first cylinder. On the one hand, it is convenient for the conical pressure plate to fit better with the steel ball, so that the power of the conical pressure plate can be effectively transmitted to the steel ball. On the other hand, when the conical pressure plate rises to a certain height, it is convenient to take the steel ball out of the cylinder for later replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional appearance schematic diagram of the utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the driving component of the utility model;

[0021] Figure 3 This is a three-dimensional appearance diagram of the release component of the utility model;

[0022] Figure 4 It is a schematic diagram of the three-dimensional appearance of the guide component of the utility model.

[0023] In the figure: 1. fixed base; 11. column; 12. top plate; 2. detection mechanism; 21. lifting assembly; 211. first motor; 212. screw rod; 213. lifting plate; 22. driving assembly; 221. first cylinder; 222. mounting plate; 223. limit column; 224. second motor; 225. conical pressure plate; 23. guiding assembly; 231. cylinder; 232. notch; 234. straight hole; 233. fixing block; 235. sliding rod; 236. arc contact plate; 237. impact block; 24. release assembly; 241. fixing frame; 242. second cylinder; 243. support plate; 244. rectangular rod; 245. connecting plate; 246. sealing plate; 247. tension spring; 248. third cylinder; 3. first speed sensor; 4. second speed sensor; 5. steel ball. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides two technical solutions:

[0026] Figure 1-Figure 4 The first embodiment is shown: a welding strength detection test device based on an automobile frame includes a fixed base 1, a detection mechanism 2 is arranged on the top of the fixed base 1, and the detection mechanism 2 includes:

[0027] A lifting assembly 21 is disposed on the top of the fixed base 1, and the lifting assembly 21 includes a lifting plate 213;

[0028] The driving assembly 22 is disposed on the top of the lifting plate 213;

[0029] The guide assembly 23 is arranged on the top of the lifting plate 213. The guide assembly 23 includes a cylinder 231 installed on the top of the lifting plate 213 near the rear side through a leg, and a fixed block 233 fixedly installed on the top of the lifting plate 213 near the left side. A steel ball 5 is placed inside the cylinder 231. A straight hole 234 for accommodating the steel ball 5 is opened on the right side of the fixed block 233. A slide rod 235 slides through the left inner wall of the straight hole 234. An arc-shaped contact plate 236 cooperating with the steel ball 5 is fixedly connected to the right side of the slide rod 235. An impact block 237 for impacting the frame is fixedly installed on the left side of the slide rod 235. The cylinder 231 is connected to the straight hole 234 through the notch 232.

[0030] The release assembly 24 is disposed on the top of the lifting plate 213 .

[0031] The driving assembly 22 includes four limit posts 223 fixedly mounted on the top of the lifting plate 213 near the right side, and a mounting plate 222 is slidably arranged between the outer surfaces of the four limit posts 223. The driving assembly 22 also includes a first cylinder 221 fixedly mounted on the top of the lifting plate 213, and the telescopic end of the first cylinder 221 is fixedly connected to the bottom of the mounting plate 222, and a second motor 224 is fixedly mounted on the top of the mounting plate 222. The output shaft end of the second motor 224 movably passes through the bottom of the cylinder 231 and extends to the top, and a conical pressure plate 225 is fixedly mounted on the output shaft end of the second motor 224, and the conical pressure plate 225 contacts the steel ball 5. The second motor 224 drives the conical pressure plate 225 to accelerate its rotation, and because the inclined surface of the conical pressure plate 225 contacts the steel ball 5, it drives the steel ball 5 to make a circular motion in the cylinder 231, and as the conical pressure plate 225 is continuously accelerated, the steel ball 5 is also continuously accelerated. The height of the conical pressure plate 225 can be controlled by the extension and contraction of the first cylinder 221. On the one hand, it is convenient for the conical pressure plate 225 to fit better with the steel ball 5, so that the power of the conical pressure plate 225 can be effectively transmitted to the steel ball 5. On the other hand, when the conical pressure plate 225 rises to a certain height, it is convenient to take the steel ball 5 out of the cylinder 231, which is convenient for later replacement.

[0032] The release assembly 24 includes a fixing frame 241 fixedly mounted on the top of the lifting plate 213 near the rear side, a second cylinder 242 is fixedly mounted on the inner top of the fixing frame 241, a support plate 243 is fixedly mounted on the inner wall of the rear side of the fixing frame 241, a rectangular rod 244 is slidably penetrated through the top of the support plate 243, a third cylinder 248 is fixedly mounted on the top of the support plate 243 near the rear side, a telescopic rod of the third cylinder 248 slides through the outer surface of the rectangular rod 244, a connecting plate 245 is fixedly mounted on the bottom of the rectangular rod 244, a tension spring 247 is sleeved on the outside of the rectangular rod 244, and both ends of the tension spring 247 are respectively fixed to the surfaces of the opposite sides of the support plate 243 and the connecting plate 245 The bottom of the connecting plate 245 is fixedly connected with a sealing plate 246, and the sealing plate 246 cooperates with the notch 232, is retracted through the telescopic rod of the third cylinder 248, and detached from the rectangular rod 244. At this time, the tension spring 247 quickly releases energy, and quickly pulls the sealing plate 246 upward through the connecting plate 245, so that the sealing plate 246 no longer blocks the notch 232 on the cylinder 231, and after the impact test is completed, the rectangular rod 244 is pushed downward by extending the telescopic rod of the second cylinder 242, so that the sealing plate 246 is reset, and the telescopic rod of the third cylinder 248 is inserted into the hole of the rectangular rod 244 to limit it, thereby facilitating the next impact test.

[0033] Figure 1-Figure 4A second embodiment is shown, the main difference from the first embodiment is that a first speed sensor 3 for monitoring the speed of the steel ball 5 is installed on the outer wall of the cylinder 231, and a second speed sensor 4 for monitoring the speed of the impact block 237 is installed on the left outer surface of the fixed block 233. The speed of the steel ball 5 can be monitored by the first speed sensor 3, and the impact speed of the impact block 237 can be detected by the second speed sensor 4, so as to facilitate the monitoring and adjustment of the test parameters.

[0034] Columns 11 are fixedly installed on the top of the fixed base 1 near the four corners, and a top plate 12 is fixedly installed between the ends of the four columns 11. The outer walls of the columns 11 slide through the outer surface of the lifting plate 213. When the lifting plate 213 moves up and down, the columns 11 limit and guide the lifting plate 213.

[0035] The lifting assembly 21 includes a first motor 211 fixedly mounted on the top of the top plate 12. The output shaft end of the first motor 211 movably passes through the top of the top plate 12 and extends to the bottom. The output shaft end of the first motor 211 is fixedly mounted with a screw rod 212 for driving the lifting plate 213 to lift and lower. The bottom end of the screw rod 212 is rotatably arranged on the top of the fixed base 1. The screw rod 212 is driven to rotate by the first motor 211, thereby adjusting the height of the lifting plate 213, which is convenient for impact testing of different welding positions of the frame.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] During operation, the conical pressure plate 225 is driven to rotate faster by the second motor 224, and the inclined surface of the conical pressure plate 225 contacts the steel ball 5, thereby driving the steel ball 5 to make a circular motion in the cylinder 231. As the conical pressure plate 225 is continuously accelerated, the steel ball 5 is also continuously accelerated, and the speed of the steel ball 5 is monitored by the first speed sensor 3. When the speed of the steel ball 5 reaches the set value, the telescopic rod of the third cylinder 248 is retracted and detached from the rectangular rod 244. At this time, the tension spring 247 quickly releases energy and quickly pulls the sealing plate 246 upward through the connecting plate 245, so that the sealing plate 246 no longer blocks the notch 232 on the cylinder 231, so that the inner cavity of the cylinder 231 is connected with the straight hole 234 in the fixing block 233. Under the action of centrifugal force, the steel ball 5 enters the straight hole 234 along the inner wall of the cylinder 231 and strongly impacts the arc contact plate 236. At this time, the strong force is transmitted to the slide rod 235 and The impact block 237 is then caused to hit the designated position on the frame at an extremely high speed, thereby completing the impact test. Since the steel ball 5 in the device is accelerated in the cylinder 231 and the impact force is output through the straight hole 234 in the fixed block 233, the entire impact test can be completed in a compact device, thereby reducing the occupancy rate of the device on the site. The impact speed of the impact block 237 can be detected by the second speed sensor 4, so as to facilitate the monitoring and adjustment of the test parameters. After the impact test is completed, the rectangular rod 244 is pushed downward by extending the telescopic rod of the second cylinder 242, so that the sealing plate 246 is reset, and the telescopic rod of the third cylinder 248 is inserted into the hole of the rectangular rod 244 to limit it, so as to facilitate the next impact test. The screw 212 is driven to rotate by the first motor 211, thereby adjusting the height of the lifting plate 213, so as to facilitate the impact test of different welding positions of the frame.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding strength testing device based on an automobile frame, comprising a fixed base (1), characterized in that: A detection mechanism (2) is arranged on the top of the fixed base (1), and the detection mechanism (2) comprises: A lifting assembly (21) is arranged on the top of the fixed base (1), and the lifting assembly (21) comprises a lifting plate (213); A driving assembly (22) is disposed on the top of the lifting plate (213); A guide assembly (23) is arranged on the top of the lifting plate (213), the guide assembly (23) comprising a cylinder (231) mounted on the top of the lifting plate (213) near the rear side through a support leg, and a fixed block (233) fixedly mounted on the top of the lifting plate (213) near the left side, a steel ball (5) is placed inside the cylinder (231), a straight hole (234) for accommodating the steel ball (5) is opened on the right side of the fixed block (233), a slide rod (235) slides through the left inner wall of the straight hole (234), an arc-shaped contact plate (236) cooperating with the steel ball (5) is fixedly connected to the right side of the slide rod (235), an impact block (237) for impacting the vehicle frame is fixedly mounted on the left side of the slide rod (235), and the cylinder (231) is connected to the straight hole (234) through the notch (232) opened; The release assembly (24) is arranged on the top of the lifting plate (213).

2. The welding strength detection test device based on the automobile frame according to claim 1 is characterized in that: The driving assembly (22) comprises four limiting columns (223) fixedly mounted on the top of the lifting plate (213) near the right side, and a mounting plate (222) is slidably arranged between the outer surfaces of the four limiting columns (223). The driving assembly (22) further comprises a first cylinder (221) fixedly mounted on the top of the lifting plate (213), and the telescopic end of the first cylinder (221) is fixedly connected to the bottom of the mounting plate (222), and a second motor (224) is fixedly mounted on the top of the mounting plate (222), and the output shaft end of the second motor (224) movably passes through the bottom of the cylinder (231) and extends to the top, and a conical pressure plate (225) is fixedly mounted on the output shaft end of the second motor (224), and the conical pressure plate (225) contacts the steel ball (5).

3. The welding strength detection test device based on the automobile frame according to claim 1 is characterized in that: The release assembly (24) comprises a fixing frame (241) fixedly mounted on the top of the lifting plate (213) near the rear side, a second cylinder (242) fixedly mounted on the inner top of the fixing frame (241), a support plate (243) fixedly mounted on the inner wall of the rear side of the fixing frame (241), a rectangular rod (244) slidingly penetrates the top of the support plate (243), a third cylinder (248) fixedly mounted on the top of the support plate (243) near the rear side, and the third cylinder (248) The telescopic rod of the support plate (248) slides through the outer surface of the rectangular rod (244), and a connecting plate (245) is fixedly installed at the bottom of the rectangular rod (244). A tension spring (247) is sleeved on the outside of the rectangular rod (244), and the two ends of the tension spring (247) are respectively fixedly connected to the support plate (243) and the surface of the connecting plate (245) on one side opposite to each other. A sealing plate (246) is fixedly connected to the bottom of the connecting plate (245), and the sealing plate (246) matches the notch (232).

4. The welding strength testing device based on the automobile frame according to claim 1 is characterized in that: A first speed sensor (3) for monitoring the speed of the steel ball (5) is installed on the outer wall of the cylinder (231), and a second speed sensor (4) for monitoring the speed of the impact block (237) is installed on the left outer surface of the fixed block (233).

5. The welding strength detection test device based on the automobile frame according to claim 1 is characterized in that: A column (11) is fixedly installed at the top of the fixed base (1) near the four corners, a top plate (12) is fixedly installed between the ends of the four columns (11), and the outer wall of the column (11) slides through the outer surface of the lifting plate (213).

6. The welding strength testing device based on the automobile frame according to claim 5 is characterized in that: The lifting assembly (21) comprises a first motor (211) fixedly mounted on the top of the top plate (12); the output shaft end of the first motor (211) movably passes through the top of the top plate (12) and extends to the bottom; the output shaft end of the first motor (211) is fixedly mounted with a screw rod (212) for driving the lifting plate (213) to move up and down; the bottom end of the screw rod (212) is rotatably arranged on the top of the fixed base (1).

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