An integrated tooling for frame inspection and correction

Abstract

This utility model relates to an integrated tooling for vehicle frame inspection and correction, belonging to the field of automotive manufacturing technology. It solves the technical problem that existing tooling of this type can only inspect the accuracy of vehicle frame dimensions. The tooling includes a base frame; several upper and lower fixed clamps mounted on the base frame; and several upper and lower lifting clamps, which are mounted on the base frame via a lifting mechanism. When the lifting mechanism drives the lifting clamps to move up and down, the relative positions between the lifting clamps and the upper and lower fixed clamps change. Through this structure, the tooling can not only inspect the accuracy of vehicle frame dimensions but also automatically correct deformed vehicle frames.

Description

Technical Field

[0001] This utility model belongs to the field of automobile manufacturing technology, and specifically relates to an integrated tooling for vehicle frame inspection and correction. Background Technology

[0002] As a crucial component of an automobile, the chassis requires the welding of its first body (section A), longitudinal beams (section B), and second body (section C) during manufacturing to form a complete chassis. To facilitate welding, an assembly workbench is typically used to fix the various parts of the chassis for easy welding. After welding, tooling is used to inspect the chassis to ensure dimensional accuracy.

[0003] Currently, the aforementioned tooling in the relevant technology has several clamps, each used to clamp different parts of the vehicle frame. The relative positions of the different clamps are fixed. During inspection, if the vehicle frame dimensions are accurate, it can be clamped by all the clamps on the tooling. However, if the vehicle frame dimensions are inaccurate, one or more clamps may not be able to clamp the corresponding part of the vehicle frame smoothly.

[0004] However, precisely because all the fixtures in the aforementioned tooling are in fixed relative positions, this type of tooling only has the function of checking whether the frame dimensions are accurate, and does not have the function of directly correcting frame deformation. Typically, when frame dimensions are found to be inaccurate, adjustments can only be made manually, but manual adjustments are labor-intensive and inefficient. Utility Model Content

[0005] This utility model provides an integrated tooling for frame inspection and correction, which solves the technical problem that existing tooling of this type can only inspect whether the frame dimensions are accurate.

[0006] This utility model is achieved through the following technical solution: an integrated tooling for chassis inspection and correction, comprising:

[0007] Base frame;

[0008] Several upper and lower fixing clamps are mounted on the base frame;

[0009] Several vertical lifting clamps are mounted on the base frame via a lifting mechanism.

[0010] When the lifting mechanism drives the upper and lower lifting clamps to move up and down, the relative position between the upper and lower lifting clamps and the upper and lower fixed clamps changes.

[0011] Furthermore, to better realize this utility model, the lifting mechanism includes:

[0012] A rotary power source is mounted on the base frame;

[0013] The lifting rod has the upper and lower lifting clamps mounted on the mounting plate. The top end of the lifting rod is connected to the mounting plate, and the middle section of the lifting rod is provided with external threads. The bottom end of the lifting rod passes through the base frame.

[0014] The worm gear has an internal thread on its inner wall, and the internal thread is screwed into the external thread.

[0015] A worm gear is connected to the rotary power source, and the worm gear meshes with the worm wheel;

[0016] A volute is mounted on the base frame, and the worm wheel and the worm are rotatably mounted inside the volute to form a worm wheel and worm lifting mechanism.

[0017] Furthermore, in order to better realize this utility model, the rotational power source is an electric motor, and the output shaft of the electric motor is keyed to the worm gear.

[0018] Furthermore, in order to better realize this utility model, a first protective cover is also installed on the base frame, and the first protective cover covers the motor.

[0019] Furthermore, in order to better realize this utility model, the top end of the lifting rod is fixed to the center position of the bottom surface of the mounting plate by bolts;

[0020] Several elastic support legs are also installed between the mounting plate and the base frame, and the elastic support legs are evenly distributed around the lifting rod.

[0021] Furthermore, to better realize this utility model, the elastic support leg includes:

[0022] A straight slide rod, the top end of which is connected to the bottom surface of the mounting plate, and the bottom end of the straight slide rod penetrating the base frame;

[0023] A bottom sleeve is installed on the base frame, and the straight sliding rod is slidably inserted into the bottom sleeve.

[0024] A top sleeve is fitted onto the straight slide rod and fixedly connected to the straight slide rod, and the top sleeve is located above the bottom sleeve;

[0025] An elastic element is installed between the top sleeve and the bottom sleeve to allow the top sleeve and the bottom sleeve to be elastically connected.

[0026] Furthermore, in order to better realize this utility model, the elastic element is a spring, the spring is sleeved outside the straight slide rod, and the two ends of the spring abut against the top sleeve and the bottom sleeve respectively.

[0027] Furthermore, in order to better realize this utility model, a bottom protective cylinder is also installed on the base frame. The bottom protective cylinder covers the bottom sleeve and the spring, and the top sleeve is slidably inserted into the bottom protective cylinder.

[0028] A top protective cylinder is installed on the bottom surface of the mounting plate, which is fitted over the straight sliding rod. The inner diameter of the top protective cylinder is larger than the outer diameter of the bottom protective cylinder.

[0029] Furthermore, in order to better realize this utility model, a scale extending vertically is installed on the base frame, and a pointer that cooperates with the scale is installed on the mounting plate.

[0030] Furthermore, in order to better realize this utility model, a second protective cover is also installed outside the scale. The second protective cover has a notch extending vertically. The pointer slides up and down in the notch. An observation port is formed through the second protective cover on one side corresponding to the scale of the scale. The second protective cover is also connected to a transparent plate, which covers the observation port.

[0031] Compared with the prior art, this utility model has the following advantages:

[0032] The integrated tooling for vehicle frame inspection and correction provided by this utility model includes a base frame, several upper and lower fixed clamps, several upper and lower lifting clamps, and several lifting mechanisms. The upper and lower fixed clamps are installed on the base frame, and the upper and lower lifting clamps are installed on the base frame by lifting mechanisms. When the lifting mechanism drives the upper and lower lifting clamps to move up and down, the relative position between the upper and lower lifting clamps and the upper and lower fixed clamps changes.

[0033] In use, several upper and lower fixed clamps and several upper and lower lifting clamps are used to simultaneously hold the frame. Different clamps hold different parts of the frame. Based on experience, the upper and lower lifting clamps are placed in areas of the frame prone to deformation. Specifically, first, based on the precise dimensions of the frame, determine the corresponding heights of each upper and lower lifting clamp and the upper and lower fixed clamps. Then, clamp the frame onto all the clamps of the tooling. If all clamps can hold the frame, it indicates that the frame dimensions are accurate. If the upper and lower lifting clamps cannot hold the frame, it indicates that the frame is deformed. In this case, the height of the upper and lower lifting clamps is adjusted using a lifting mechanism so that they can hold the frame. Then, the height of the upper and lower lifting clamps is adjusted back using the lifting mechanism, thereby using the upper and lower lifting clamps to pull the deformed parts of the frame and correct the deformation.

[0034] With the above structure, the tooling provided by this utility model can not only check whether the dimensions of the frame are accurate, but also automatically correct the frame when the frame is deformed (that is, when the dimensions of the frame are inaccurate), making it more practical. Attached Figure Description

[0035] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the integrated frame inspection and correction tooling provided in this embodiment of the utility model without the third protective cover.

[0037] Figure 2 This is a schematic diagram of the installation structure of a single upper and lower fixing clamp on the base frame in an embodiment of this utility model;

[0038] Figure 3 This is a schematic diagram of the installation structure of a single vertical lifting clamp on the base frame in an embodiment of this utility model;

[0039] Figure 4 yes Figure 3 The diagram shown illustrates the structure without the first, second, and third protective covers installed.

[0040] Figure 5 yes Figure 4 Another perspective view of the structure shown;

[0041] Figure 6 This is a schematic diagram of the installation structure of the elastic support leg in an embodiment of this utility model.

[0042] In the picture:

[0043] 100-Base frame, 200-Upper and lower fixing clamps, 300-Upper and lower lifting clamps, 310-Mounting plate, 311-Pointer, 400-Lifting mechanism, 410-Motor, 420-Lifting rod, 430-Worm gear lifting mechanism, 440-First protective cover, 500-Elastic support leg, 510-Straight slide rod, 520-Bottom sleeve, 530-Top sleeve, 540-Spring, 550-Bottom protective sleeve, 560-Top protective sleeve, 600-Scale, 610-Second protective cover, 611-Transparent plate, 700-Third protective cover. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0045] Example:

[0046] like Figures 1-6 As shown, the integrated chassis inspection and correction fixture provided in this embodiment includes a base frame 100, several upper and lower fixed clamps 200, several upper and lower lifting clamps 300, and several lifting mechanisms 400. The upper and lower fixed clamps 200 are mounted on the base frame 100, and the upper and lower lifting clamps 300 are mounted on the base frame 100 in a vertically flexibly manner via the lifting mechanisms 400. When the lifting mechanisms 400 drive the upper and lower lifting clamps 300 to move up and down, the relative positions between the upper and lower lifting clamps 300 and the upper and lower fixed clamps 200 change. It should be noted that the installation method of the upper and lower fixed clamps 200 on the base frame 100 in this embodiment is the same as that in the prior art; after installation, the upper and lower fixed clamps 200 cannot move up and down on the base frame 100.

[0047] In use, several upper and lower fixed clamps 200 and several upper and lower lifting clamps 300 are used to simultaneously clamp the frame. Different clamps clamp different parts of the frame. Based on experience, the upper and lower lifting clamps 300 are placed in positions on the frame prone to deformation. Specifically, first, based on the precise dimensions of the frame, the heights of each upper and lower lifting clamp 300 and upper and lower fixed clamp 200 are determined. Then, the frame is clamped to all the clamps of the tooling. If all clamps can hold the frame, it indicates that the frame dimensions are accurate. If the upper and lower lifting clamps 300 cannot hold the frame, it indicates that the frame is deformed. In this case, the height of the upper and lower lifting clamps 300 is adjusted using the lifting mechanism 400 so that they can hold the frame. Then, the height of the upper and lower lifting clamps 300 is adjusted back using the lifting mechanism 400, thereby using the upper and lower lifting clamps 300 to pull the deformed parts of the frame, thus correcting the deformation.

[0048] With the above structure, the tooling provided in this embodiment can not only check whether the dimensions of the frame are accurate, but also automatically correct the frame when it is deformed (that is, when the dimensions of the frame are inaccurate), making it more practical.

[0049] An optional implementation of this embodiment is as follows: The lifting mechanism 400 includes a rotary power source, a lifting rod 420, a worm gear, a worm, and a worm housing, wherein:

[0050] A rotary power source is mounted on the base frame 100, and the rotary power source is used to output rotary power.

[0051] The aforementioned lifting clamp 300 is mounted on the mounting plate 310. The top end of the lifting rod 420 is connected to the mounting plate 310, and the middle section of the lifting rod 420 is provided with external threads. The bottom end of the lifting rod 420 passes through the base frame 100, that is, the base frame 100 is provided with a first through hole, and the lifting rod 420 is slidably inserted into the aforementioned through hole.

[0052] The worm gear has a ring structure and an internal thread on its inner wall. This internal thread is screwed into the external thread mentioned above. At this time, the worm gear is rotatably mounted on the outside of the lifting shaft.

[0053] The worm is connected to a rotary power source, which drives the worm to rotate. The worm meshes with a worm wheel, allowing the rotary power source to drive the worm wheel to rotate.

[0054] The worm gear housing is mounted on the base frame 100, and the worm wheel and worm are rotatably mounted inside the worm gear housing to form a worm wheel and worm gear lifting mechanism. It is worth noting that the worm wheel and worm gear lifting mechanism is a very existing technology. In this embodiment, it is only used to drive the lifting rod 420 and the lifting clamp 300 to move up and down. Furthermore, as with existing technologies, the worm wheel can only rotate within the worm gear housing. Of course, rotating auxiliary components such as bearings can be provided inside the worm gear housing to assist the worm wheel and worm in rotating flexibly within the housing.

[0055] When the rotary power source drives the worm to rotate, the worm drives the worm wheel to rotate within the worm housing. Because the internal thread of the worm wheel is screwed onto the external thread of the aforementioned lifting rod 420, the rotation of the worm wheel will drive the internal thread and the lifting rod 420 to move up and down, thereby driving the mounting plate 310 to move the lifting clamp 300 up and down. It is easy to understand that the aforementioned lifting rod 420 penetrates through the aforementioned worm housing.

[0056] Since the worm gear lifting mechanism is existing technology, this patent does not provide a more detailed description of it, nor does it provide drawings illustrating the cooperation relationship between the worm wheel, worm, and lifting rod 420 of the worm gear lifting mechanism. Those skilled in the art can easily understand the specific structure and working principle of the above-mentioned worm gear lifting mechanism based on the above description and conventional technology in the field.

[0057] Of course, the lifting mechanism 400 can also be a component that can output linear motion, such as a cylinder, hydraulic cylinder or hydraulic jack. In this case, the lifting end of the lifting mechanism 400 is connected to the mounting plate 310, and the mounting plate 310 can be driven to rise and fall relative to the base frame 100.

[0058] Optionally, the aforementioned rotary power source is an electric motor 410, whose output shaft is connected to the aforementioned worm gear via a keyway. Thus, when the electric motor 410 is running, it can drive the worm gear to rotate. Of course, the aforementioned rotary power source can also be a hand crank, in which case the operator needs to manually crank the hand crank to drive the worm gear to rotate.

[0059] In order to protect the motor 410, in this embodiment, a first protective cover 440 is also installed on the base frame 100, which covers the motor 410.

[0060] An optional implementation of this embodiment is as follows: A protruding wing plate is provided at the top of the lifting rod 420. The protruding wing plate is bolted to the center of the bottom surface of the mounting plate 310, thereby connecting the lifting rod 420 to the mounting plate 310. Several elastic support legs 500 are also installed between the mounting plate 310 and the base frame 100. These elastic support legs 500 work together to more stably support the vertical lifting clamp 300 on the mounting plate 310. The elastic support legs 500 are evenly distributed around the lifting rod 420. This allows the vertical lifting clamp 300 to be more stably placed on the mounting plate 310, enhancing its load-bearing capacity.

[0061] Optionally, the aforementioned elastic support leg 500 includes a straight slide bar 510, a bottom sleeve 520, a top sleeve 530, and an elastic element, wherein:

[0062] The top end of the straight slide rod 510 is welded or bolted to the bottom surface of the mounting plate 310, and the bottom end of the straight slide rod 510 penetrates the base frame 100, that is, the base frame 100 has a through hole, and the straight slide rod 510 is slidably inserted into the through hole.

[0063] The bottom sleeve 520 is mounted on the base frame 100. The straight slide rod 510 is slidably inserted into the bottom sleeve 520. The inner hole of the bottom sleeve 520 is adapted to the straight slide rod 510, and the straight slide rod 510 is slidably inserted into the inner hole of the bottom sleeve 520.

[0064] The top sleeve 530 is fitted onto the straight slide rod 510 and is fixed by welding or interference fit with the straight slide rod 510. The top sleeve 530 is located above the bottom sleeve 520.

[0065] An elastic element is installed between the top sleeve 530 and the bottom sleeve 520 to elastically connect the top sleeve 530 and the bottom sleeve 520. In this way, the aforementioned straight slide rod 510 is elastically connected to the aforementioned base frame 100.

[0066] The aforementioned elastic support leg 500 uses the sliding of the straight slide rod 510 in the bottom sleeve 520 to radially position the straight slide rod 510, and the elasticity of the elastic element enables the straight slide rod 510 to have a certain load-bearing capacity.

[0067] Optionally, the aforementioned elastic element is a spring 540. The top outer wall of the top sleeve 530 is provided with an upper outer wing plate, and the bottom outer wall of the bottom sleeve 520 is provided with a lower outer wing plate. The lower outer wing plate is bolted to the base frame 100. The spring 540 is sleeved on the main bodies of the top sleeve 530 and the bottom sleeve 520, thus allowing the spring 540 to be sleeved outside the straight slide rod 510. Both ends of the spring 540 abut against the upper and lower outer wing plates respectively, thereby enabling the top sleeve 530 and the bottom sleeve 520 to be elastically connected. Of course, the aforementioned elastic element can also be an inflatable bladder or other elastic component.

[0068] To protect the spring 540 and to prevent it from being exposed and affecting its appearance and performance, in this embodiment, a bottom protective sleeve 550 is also installed on the base frame 100. The bottom protective sleeve 550 covers the bottom sleeve 520 and the spring 540. Of course, the spring 540 can smoothly extend and retract inside the bottom protective sleeve 550. The top sleeve 530 is slidably inserted into the bottom protective sleeve 550. A top protective sleeve 560 is installed on the bottom surface of the mounting plate 310 and sleeved on the straight slide rod 510. The inner diameter of the top protective sleeve 560 is larger than the outer diameter of the bottom protective sleeve 550. In this way, the top protective sleeve 560 can be sleeved on the bottom protective sleeve 550 from top to bottom.

[0069] In addition, the elastic support leg 500 in this embodiment can also be any other elastic support leg or a support leg that can extend and retract vertically. If a support leg that can extend and retract vertically is used instead of the elastic support leg 500, the support leg that can extend and retract vertically can be a hydraulic jack, a pneumatic cylinder, or a hydraulic cylinder.

[0070] In order to better protect the elastic support legs 500 and the worm gear lifting mechanism, in this embodiment, a third protective cover 700 is also installed on the base frame 100. The third protective cover 700 covers all the elastic support legs 500 and the worm gear lifting mechanism corresponding to the upper and lower lifting clamps 300.

[0071] An optional implementation of this embodiment is as follows: A vertically extending scale 600 is mounted on the base frame 100, and a pointer 311 that cooperates with the scale 600 is mounted on the mounting plate 310. Thus, when the lifting clamp 300 is raised and lowered under the drive of the lifting mechanism 400, the cooperation between the pointer 311 and the scale 600 makes the lifting scale visible, allowing for precise management of the degree of lifting of the lifting clamp 300.

[0072] More preferably, a second protective cover 610 is installed outside the scale 600. The second protective cover 610 has a vertically extending notch, in which the pointer 311 slides up and down. An observation port is formed on one side of the second protective cover 610 corresponding to the scale of the scale 600. A transparent plate 611 is also connected to the second protective cover 610, covering the observation port. With the help of the second protective cover 610 and the transparent plate 611, the scale 600 can be protected, and through the transparent plate 611, the operator can easily read the reading of the scale 600 marked by the pointer 311.

[0073] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope described in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An integrated tooling for chassis inspection and correction, characterized in that, include: Base frame (100); Several upper and lower fixing clamps (200) are mounted on the base frame (100); A plurality of vertical lifting clamps (300) are mounted vertically on the base frame (100) via a lifting mechanism (400); When the lifting mechanism (400) drives the upper and lower lifting clamps (300) to rise and fall, the relative position between the upper and lower lifting clamps (300) and the upper and lower fixed clamps (200) changes.

2. The integrated tooling for frame inspection and correction according to claim 1, characterized in that, The lifting mechanism (400) includes: A rotary power source is mounted on the base frame (100); The lifting rod (420) is mounted on the mounting plate (310), the top end of the lifting rod (420) is connected to the mounting plate (310), and the middle section of the lifting rod (420) is provided with external thread, and the bottom end of the lifting rod (420) passes through the base frame (100). The worm gear has an internal thread on its inner wall, and the internal thread is screwed into the external thread. A worm gear is connected to the rotary power source, and the worm gear meshes with the worm wheel; A volute is mounted on the base frame (100), and the worm wheel and the worm are rotatably mounted inside the volute to form a worm wheel and worm lifting mechanism (400).

3. The integrated tooling for frame inspection and correction according to claim 2, characterized in that: The rotational power source is an electric motor (410), and the output shaft of the electric motor (410) is keyed to the worm gear.

4. The integrated tooling for frame inspection and correction according to claim 3, characterized in that: A first protective cover (440) is also installed on the base frame (100), which covers the motor (410).

5. The integrated tooling for frame inspection and correction according to claim 2, characterized in that: The top end of the lifting rod (420) is fixed to the center of the bottom surface of the mounting plate (310) by bolts; A plurality of elastic support legs (500) are also installed between the mounting plate (310) and the base frame (100), and the plurality of elastic support legs (500) are evenly distributed around the lifting rod (420).

6. The integrated tooling for frame inspection and correction according to claim 5, characterized in that, The elastic support leg (500) includes: A straight slide rod (510) has its top end connected to the bottom surface of the mounting plate (310), and its bottom end passes through the base frame (100). A bottom sleeve (520) is installed on the base frame (100), and the straight slide rod (510) is slidably inserted into the bottom sleeve (520); A top sleeve (530) is fitted onto the straight slide rod (510) and fixedly connected to the straight slide rod (510). The top sleeve (530) is located above the bottom sleeve (520). An elastic element is installed between the top sleeve (530) and the bottom sleeve (520) to elastically connect the top sleeve (530) and the bottom sleeve (520).

7. The integrated tooling for frame inspection and correction according to claim 6, characterized in that: The elastic element is a spring (540), which is sleeved on the straight slide rod (510), and the two ends of the spring (540) abut against the top sleeve (530) and the bottom sleeve (520) respectively.

8. The integrated tooling for frame inspection and correction according to claim 7, characterized in that: A bottom protective sleeve (550) is also installed on the base frame (100). The bottom protective sleeve (550) covers the bottom sleeve (520) and the spring (540). The top sleeve (530) is slidably inserted into the bottom protective sleeve (550). A top protective cylinder (560) is installed on the bottom surface of the mounting plate (310) and sleeved outside the straight slide rod (510). The inner diameter of the top protective cylinder (560) is larger than the outer diameter of the bottom protective cylinder (550).

9. The integrated tooling for frame inspection and correction according to any one of claims 2-8, characterized in that: A scale (600) extending vertically is mounted on the base frame (100), and a pointer (311) cooperating with the scale (600) is mounted on the mounting plate (310).

10. The integrated tooling for frame inspection and correction according to claim 9, characterized in that: A second protective cover (610) is also installed outside the scale (600). The second protective cover (610) has a notch that extends vertically. The pointer (311) slides up and down in the notch. An observation port is formed by passing through one side of the second protective cover (610) that corresponds to the scale of the scale (600). The second protective cover (610) is also connected to a transparent plate (611), which covers the observation port.

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