A tool lifting mechanism for body-in-white positioning

Abstract

This utility model discloses a tooling lifting mechanism for positioning a body-in-white, characterized in that: the tooling lifting mechanism includes a pair of symmetrically distributed lifting components, each lifting component includes two base plates with collinear central axes, each base plate has a sliding plate slidably connected to it via an X-axis guide rail, the two sliding plates are connected as a single structure by a crossbeam, a drive frame is provided on the sliding plate, the drive frame is generally in the shape of a right trapezoid, it includes an upper support plane, a lower support plane, and an inclined drive surface connecting the two planes, the lifting component also includes a support frame and a lifting frame, two Z-axis guide rails are symmetrically provided at both ends of the support frame, the lifting frame is movably connected to the support frame via the Z-axis guide rails, two drive wheels are provided at the bottom of the lifting frame and the drive wheels are in contact with the drive frame, and multiple positioning mechanisms are provided on the lifting frame.

Description

Technical Field

[0001] This utility model relates to the field of automated production, and in particular to a tooling lifting mechanism for positioning a body-in-white. Background Technology

[0002] In order to save costs, multiple car models often need to share a production line for production and assembly. Therefore, the positioning mechanisms such as body fixtures and locators on the production line need to meet the needs of different car models. However, different car models have different requirements for the placement height of the body during assembly. This requires a lifting mechanism to drive the positioning mechanism to make lifting and lowering movements, i.e., the traditional flexible switching mechanism.

[0003] However, traditional flexible switching mechanisms are complex in structure, bulky in size, and relatively expensive. Therefore, there is a need for a method or device that can solve the above problems. Summary of the Invention

[0004] This utility model aims to overcome the aforementioned shortcomings of the existing technology by proposing a tooling lifting mechanism that is simple in structure, ingenious in design, and reasonable in layout. This mechanism can adjust its own positioning height according to the requirements of the vehicle body placement height during vehicle assembly, thereby meeting the production needs of multiple vehicle models sharing a production line.

[0005] The technical solution of this utility model is: a tooling lifting mechanism for positioning a body-in-white, characterized in that: the tooling lifting mechanism includes a pair of symmetrically distributed lifting components, each lifting component includes two base plates 1 with collinear central axes, each base plate 1 having a sliding plate 3 slidably connected to it via an X-guide rail 2, the two sliding plates 3 being connected as a single unit by a crossbeam 4, a drive frame 5 being provided on each sliding plate 3, the drive frame 5 being generally in the shape of a right trapezoid, it including an upper support plane 6, a lower support plane 7, and an inclined drive surface 8 connecting the two planes.

[0006] The lifting assembly also includes a support frame 9 and a lifting frame 10. Two Z-axis guide rails 11 are symmetrically arranged at both ends of the support frame 9. The lifting frame 10 is movably connected to the support frame 9 via the Z-axis guide rails 11. Two drive wheels 12 are arranged at the bottom of the lifting frame 10, and the drive wheels 12 are in contact with the drive frame 5. Multiple positioning mechanisms 13 are provided on the lifting frame 10.

[0007] The tooling lifting mechanism also includes a motor 14. The output end of the motor 14 is connected to the input end of the gearbox 15, and the output end of the gearbox 15 is connected to the drive shaft 17 through a belt pulley transmission pair 16. The drive shaft 17 is rotatably supported by a bracket, and drive gears 18 are provided at both ends. The two drive gears 18 respectively mesh with the rack portions 19 provided on the bottom surface of the two crossbeams 4.

[0008] The transitions between the upper support plane 6 and the inclined driving surface 8, and between the lower support plane 7 and the inclined driving surface 8, are smooth.

[0009] The base plate 1 is provided with two limit switches 20 and two position sensors 21, and the two limit switches 20 correspond to the two extreme positions of the slide plate 3, and the two position sensors 21 also correspond to the two extreme positions of the slide plate 3.

[0010] The end of the base plate 1 is provided with a mechanical limit 22 corresponding to the extreme movement position of the slide plate 3.

[0011] The positioning mechanism 13 is a swing cylinder 23 with a pressure block at its working end.

[0012] The positioning mechanism 13 is a hook pin cylinder 24 with a positioning pin at the working end.

[0013] An arc-shaped transition section 25 is provided between the upper support plane 6 and the inclined driving surface 8. The arc-shaped transition section 25 is concave downward, and the transition between the arc-shaped transition section 25 and the upper support plane 6, and between the arc-shaped transition section 25 and the inclined driving surface 8, is smooth.

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] This type of tooling lifting mechanism for positioning body-in-white features a simple structure, ingenious design, and rational layout. Addressing the problems of traditional lifting and adjustment mechanisms, it employs a unique structure. It utilizes a motor to drive the horizontal beams of two lifting components in a horizontal linear motion, and a drive frame with an inclined drive surface converts this horizontal motion into longitudinal linear motion, thereby driving the lifting frame to perform the lifting action. Compared to the traditional method of directly using hydraulic or pneumatic cylinders to drive the lifting frame up and down, this special structure that utilizes the conversion of horizontal motion into linear motion offers several advantages: firstly, it saves longitudinal space and is less restricted by environmental factors; secondly, it eliminates the workload of arranging pipelines, setting up pump stations, and air stations for hydraulic or pneumatic cylinders, while ensuring sufficient lifting force and facilitating later maintenance and repair. It allows multiple positioning mechanisms on the lifting frame to adjust their height according to specific needs, achieving good support for the body-in-white. Furthermore, its manufacturing process is simple and its production cost is low. Therefore, it possesses multiple advantages and is particularly suitable for widespread application in this field, with a very broad market prospect. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model (direction one).

[0017] Figure 2 This is a front view of an embodiment of the present utility model.

[0018] Figure 3 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model (direction two).

[0019] Figure 4 This is a three-dimensional structural diagram of the drive frame portion in an embodiment of this utility model. Detailed Implementation

[0020] The specific embodiments of this utility model will be described below with reference to the accompanying drawings. Figures 1 to 4 The image shows a tooling lifting mechanism for positioning a body-in-white. It includes a pair of symmetrically distributed lifting components. Each lifting component comprises two base plates 1 with collinear central axes. Each base plate 1 has a sliding plate 3 slidably connected to it via an X-axis guide rail 2. The two sliding plates 3 are connected as a single unit by a crossbeam 4. A drive frame 5 is mounted on each sliding plate 3. The drive frame 5 is generally shaped like a right-angled trapezoid and includes an upper support plane 6, a lower support plane 7, and an inclined drive surface 8 connecting these two planes.

[0021] The lifting assembly also includes a support frame 9 and a lifting frame 10. Two Z-axis guide rails 11 are symmetrically arranged at both ends of the support frame 9. The lifting frame 10 is movably connected to the support frame 9 via the Z-axis guide rails 11. Two drive wheels 12 are arranged at the bottom of the lifting frame 10, and the drive wheels 12 are in contact with the drive frame 5. Multiple positioning mechanisms 13 are provided on the lifting frame 10.

[0022] The tooling lifting mechanism also includes a motor 14. The output end of the motor 14 is connected to the input end of the gearbox 15, and the output end of the gearbox 15 is connected to the drive shaft 17 through a belt pulley transmission pair 16. The drive shaft 17 is rotatably supported by a bracket, and drive gears 18 are provided at both ends. The two drive gears 18 respectively mesh with the rack portions 19 provided on the bottom surface of the two crossbeams 4.

[0023] The transitions between the upper support plane 6 and the inclined driving surface 8, and between the lower support plane 7 and the inclined driving surface 8, are smooth.

[0024] The base plate 1 is provided with two limit switches 20 and two position sensors 21, and the two limit switches 20 correspond to the two extreme positions of the slide plate 3, and the two position sensors 21 also correspond to the two extreme positions of the slide plate 3.

[0025] The end of the base plate 1 is provided with a mechanical limit 22 corresponding to the extreme movement position of the slide plate 3.

[0026] The positioning mechanism 13 is a swing cylinder 23 with a pressure block at its working end.

[0027] The positioning mechanism 13 is a hook pin cylinder 24 with a positioning pin at the working end.

[0028] An arc-shaped transition section 25 is provided between the upper support plane 6 and the inclined driving surface 8. The arc-shaped transition section 25 is concave downward, and the transition between the arc-shaped transition section 25 and the upper support plane 6, and between the arc-shaped transition section 25 and the inclined driving surface 8, is smooth.

[0029] The working process of the tooling lifting mechanism for positioning the body-in-white according to this embodiment of the utility model is as follows: In the initial state, all the drive wheels 12 are located on the lower support plane 7, and the lifting frame 10 is in a low position.

[0030] When the lifting frame 10 needs to be raised, the control system sends a signal to the motor 14, which then operates. The motor 14 drives the drive shaft 17 to rotate via the belt pulley transmission pair 16. The two drive gears 18 at both ends of the drive shaft 17 rotate synchronously, simultaneously driving the crossbeams 4 (and the slide plates 3 connected to both ends of the crossbeams 4) in the two lifting assemblies to move in the X-axis direction.

[0031] Since the lifting frame 10 is movably connected to the support frame 9 via the Z-guide rail 11, the lifting frame 10 cannot move horizontally and can only move in the Z-axis direction. Therefore, when the drive frame 5 moves horizontally, the inclined drive surface 8 on it will push the drive wheel 12 and the lifting frame 10 to rise as a whole until the slide plate 3 moves into place. Then, the drive wheel 12 contacts the upper support plane 6 on the drive frame 5. At this time, the lifting frame 10 moves to the high position and is supported by the upper support planes 6 on the four drive frames 5.

[0032] By switching the height of the lifting frame 10, multiple positioning mechanisms 13 set on the lifting frame 10 can be used to position the body-in-white of different specifications; the hook pin cylinder 24 can drive the positioning pin to extend and insert into the corresponding positioning hole on the workpiece, while the swing cylinder 23 can drive the pressure block to move, press the workpiece, and limit and position it.

[0033] In the above process, since the transition between the upper support plane 6 and the inclined drive surface 8, and between the lower support plane 7 and the inclined drive surface 8 are smooth, the drive wheel 12 does not have any "blocking point" when it moves, which can ensure that its movement is smooth and without impact.

[0034] In order to reduce friction and wear, an arc transition section 25 can be set between the inclined drive surface 8 and the upper support plane 6. When the drive wheel 12 moves from the flat inclined drive surface 8 to the arc transition section 25, the arc transition section 25 is concave downward, which can play a buffering role and further reduce the impact.

[0035] Meanwhile, the two position sensors 21 on the same base plate 1 can detect the current position of the slide plate 3, determine whether it has moved to the working position, and send the information to the control system so that the control system can control the working state of the device; the two limit switches 20 will be triggered when the slide plate 3 moves beyond its travel range. When they are triggered, they will send a signal to the control system, which will then control the connected sound and light alarm device to work and issue an alarm message.

[0036] The mechanical limiter 22 can physically prevent the skateboard 3 from moving excessively, effectively protecting the mechanism.

Claims

1. A tooling lifting mechanism for positioning a body-in-white, characterized in that: The tooling lifting mechanism includes a pair of symmetrically distributed lifting components. Each lifting component includes two base plates (1) with collinear central axes. Each base plate (1) is slidably connected to a slide plate (3) via an X-guide rail (2). The two slide plates (3) are connected as a single structure by a crossbeam (4). A drive frame (5) is provided on the slide plate (3). The drive frame (5) is generally in the shape of a right trapezoid and includes an upper support plane (6), a lower support plane (7), and an inclined drive surface (8) connecting the two planes. The lifting assembly also includes a support frame (9) and a lifting frame (10). Two Z-guide rails (11) are symmetrically arranged at both ends of the support frame (9). The lifting frame (10) is movably connected to the support frame (9) through the Z-guide rails (11). Two drive wheels (12) are arranged at the bottom of the lifting frame (10), and the drive wheels (12) are in contact with the drive frame (5). Multiple positioning mechanisms (13) are arranged on the lifting frame (10). The tooling lifting mechanism also includes a motor (14), the output end of the motor (14) is connected to the input end of the gearbox (15), and the output end of the gearbox (15) is connected to the drive shaft (17) through a belt pulley transmission pair (16). The drive shaft (17) is rotatably supported by a bracket, and drive gears (18) are provided at both ends. The two drive gears (18) respectively mesh with the racks (19) provided on the bottom surface of the two crossbeams (4).

2. The tooling lifting mechanism for positioning a body-in-white according to claim 1, characterized in that: The transitions between the upper support plane (6) and the inclined driving surface (8), and between the lower support plane (7) and the inclined driving surface (8) are smooth.

3. The tooling lifting mechanism for positioning a body-in-white according to claim 1, characterized in that: The base plate (1) is provided with two limit switches (20) and two position sensors (21), and the two limit switches (20) correspond to the two extreme positions of the slide plate (3) respectively, and the two position sensors (21) also correspond to the two extreme positions of the slide plate (3) respectively.

4. The tooling lifting mechanism for positioning a body-in-white according to claim 1, characterized in that: The end of the base plate (1) is provided with a mechanical limit (22) corresponding to the extreme motion position of the slide plate (3).

5. The tooling lifting mechanism for positioning a body-in-white according to claim 1, characterized in that: The positioning mechanism (13) is a swing cylinder (23) with a pressure block at the working end.

6. The tooling lifting mechanism for positioning a body-in-white according to claim 1, characterized in that: The positioning mechanism (13) is a hook pin cylinder (24) with a positioning pin at the working end.

7. The tooling lifting mechanism for positioning a body-in-white according to claim 1, characterized in that: An arc transition section (25) is provided between the upper support plane (6) and the inclined driving surface (8). The arc transition section (25) is concave downwards, and the transition between the arc transition section (25) and the upper support plane (6) and between the arc transition section (25) and the inclined driving surface (8) is smooth.

Images