Machining positioning device for automobile body

Abstract

The utility model discloses a processing and positioning device for an automobile body, which comprises a connecting piece connected with a conveying trolley, and a V-shaped groove is formed at one end, close to the front end of the conveying trolley, of the connecting piece; the positioning assembly is connected with the connecting piece, a V-shaped positioning block is formed at the end, close to the front end of the conveying trolley, of the positioning assembly, the side face of the V-shaped positioning block is perpendicular to the connecting piece, and the side face of the V-shaped positioning block is parallel to the side face of the V-shaped groove. The guide plate is arranged to limit the driving wheel to form a first-layer limiting mechanism, the inner positioning plate is arranged to limit the inner guide wheel to form a second-layer limiting mechanism, the auxiliary plate is arranged to limit the outer guide wheel to form a third-layer limiting mechanism, and the V-shaped positioning block is arranged to position the position of the V-shaped groove to form a fourth-layer limiting mechanism. Therefore, the position of the connecting piece relative to the positioning assembly is determined, the position of the conveying trolley relative to the positioning assembly fixed to the ground is determined, and the position accuracy of the conveying trolley is improved.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to a processing and positioning device for automobile bodies. Background Technology

[0002] In modern automotive body manufacturing, various types of transport trolleys or automated systems are typically used to push the car body to different processing stations, with positioning mechanisms fixing their positions. This not only improves production efficiency but also ensures the accuracy and safety of the processing. In small or flexible automotive production lines, manual transport trolleys are often used to transport the car body to different stations. The processing steps mainly include: fixing the car body to the manual transport trolley using fixtures; the operator pushing the manual transport trolley to the processing station until the positioning mechanism fixes its position; and the processing equipment performing processing on the car body, such as welding and painting.

[0003] After implementing existing examples of automotive body processing positioning devices, the inventors discovered that: each type of automotive body requires a different type of manual transport trolley, and each type of manual transport trolley requires a different type of positioning mechanism. The positioning mechanism is fixedly connected to the automotive body processing equipment by bolts, which means that the positioning mechanism needs to be replaced or added when producing different types of automotive bodies. The positioning methods of different types of positioning mechanisms are also different, resulting in different and lower positioning accuracy for the automotive body, which in turn affects the accuracy of automotive body processing. Utility Model Content

[0004] This utility model addresses the problem of low positioning accuracy in existing automotive body processing positioning devices by providing a processing positioning device for automotive bodies. The specific technical solution is as follows:

[0005] This utility model includes a transport trolley for fixing and transporting a car body. The direction from the rear end of the transport trolley to the front end is the transport direction. The processing and positioning device further includes: a connector connected to the transport trolley, the end of the connector near the front end of the transport trolley forming a V-shaped groove; and a positioning component connected to the connector, the end of the positioning component near the front end of the transport trolley forming a V-shaped positioning block, the side of the V-shaped positioning block being perpendicular to the connector, and the side of the V-shaped positioning block being parallel to the side of the V-shaped groove.

[0006] Furthermore, the connector is axisymmetric and includes a connecting plate connected to the conveying trolley, which is also axisymmetric; the positioning assembly is axisymmetric and includes a mounting plate connected to the ground, which is parallel to the connecting plate and is also axisymmetric. The center lines of the V-shaped positioning block and the V-shaped groove, as well as the axis of symmetry of the connecting plate and the mounting plate, are located in the same plane, which is perpendicular to the connecting plate and the mounting plate and parallel to the conveying direction of the conveying trolley.

[0007] Preferably, the connector further includes positioning protrusions symmetrically arranged at both ends of the connecting plate along the conveying direction. The side of the positioning protrusion near the rear end of the conveying trolley is a positioning surface, which is perpendicular to the center line of the V-shaped groove. The positioning assembly also includes clamping members symmetrically arranged at both ends of the mounting plate along the conveying direction. The clamping members can apply pressure to the positioning surface pointing towards the V-shaped positioning block.

[0008] Preferably, the clamping component includes: cylinders symmetrically arranged at both ends of the mounting plate along the conveying direction, the cylinders moving in a rotating direction; and an arc-shaped positioning block with one end connected to the moving end of the cylinder, the other end face of the arc-shaped positioning block being perpendicular to the mounting plate, the cylinders being able to drive the end face of the arc-shaped positioning block to rotate and coincide with the positioning surface of the positioning protrusion.

[0009] Preferably, the connector further includes an inner guide plate connected to the connecting plate, the axis of symmetry of the inner guide plate being located in a plane, and the inner guide plate forming a side side parallel to the conveying direction along its own axis of symmetry; the positioning assembly further includes an inner guide wheel connected to the mounting plate, the axis of symmetry of the inner guide wheel being located in a plane, the axis of the inner guide wheel being perpendicular to the mounting plate, and the side side of the inner guide wheel being tangent to the side side of the inner guide plate.

[0010] Preferably, the connector further includes an auxiliary plate connected to the connecting plate, the axis of symmetry of the auxiliary plate being located in a plane, the side of the auxiliary plate being perpendicular to the mounting plate, the side surfaces of the auxiliary plates intersecting each other and the intersection line being close to the front end of the conveying trolley; the positioning assembly further includes an outer guide wheel connected to the mounting plate, the axis of symmetry of the outer guide wheel being located in a plane, the axis of the outer guide wheel being perpendicular to the mounting plate, and the side surface of the outer guide wheel being tangent to the side surface of the auxiliary plate.

[0011] Preferably, the positioning assembly further includes symmetrically arranged guide plates, the axis of symmetry of which is located in a plane, and the opposite sides of the guide plates are perpendicular to the ground; the conveying trolley includes symmetrically arranged drive wheels, the axis of symmetry of which is located in a plane, the end face of which is perpendicular to the ground, and the side of the drive wheel relative to the guide plate coincides with the opposite side of the guide plate.

[0012] Preferably, the transport trolley also includes a vehicle body frame connected to the connecting plate, which is used to fix the vehicle body.

[0013] Preferably, the connector further includes auxiliary plates symmetrically arranged on both sides of the connecting plate along the conveying direction, the bottom surface of the auxiliary plates being parallel to the connecting plate and the mounting plate; the positioning assembly further includes an auxiliary wheel arranged on the side of the mounting plate near the connecting plate, the side of the auxiliary wheel being tangent to the bottom surface of the auxiliary plate.

[0014] Preferably, the positioning component 3 further includes a limit switch 36 and a buffer block 37 symmetrically arranged on both sides of one end of the mounting plate 31 near the V-shaped positioning block 38. The side of the buffer block 37 that contacts the connecting plate 21 forms a buffer structure. The limit switch 36 can generate an overlap signal after contacting the connecting plate 21.

[0015] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0016] This utility model establishes a first-layer limiting mechanism by setting a guide plate to restrict the drive wheel, a second-layer limiting mechanism by setting an inner positioning plate to restrict the inner guide wheel, a third-layer limiting mechanism by setting an auxiliary plate to restrict the outer guide wheel, and a fourth-layer limiting mechanism by setting a V-shaped positioning block to position the V-shaped groove. This determines the position of the connecting piece relative to the positioning component, and further determines the position of the conveying trolley relative to the positioning component fixed on the ground, thereby improving the positioning accuracy of the conveying trolley. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the connection between the connector and the positioning component of this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of a specific area;

[0020] Figure 4 for Figure 2 Enlarged view of a specific area;

[0021] Figure 5 This is a schematic diagram of the positioning component structure;

[0022] Figure 6 This is a schematic diagram of the connector structure;

[0023] Figure 7 This is a structural schematic diagram of the connector and positioning assembly from another perspective.

[0024] In the diagram: 1. Conveying trolley; 11. Vehicle frame; 12. Drive wheel; 2. Connecting component; 21. Connecting plate; 22. Positioning protrusion; 23. Positioning surface; 24. Inner positioning plate; 25. V-shaped groove; 26. Auxiliary plate; 3. Positioning assembly; 31. Mounting plate; 32. Guide plate; 33. Outer guide wheel; 34. Inner guide wheel; 35. Auxiliary wheel; 36. Limit switch; 37. Buffer block; 38. V-shaped positioning block; 39. Clamping component; 391. Cylinder; 392. Arc-shaped positioning block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment includes a transport trolley 1 for fixing and transporting a car body, the direction from the rear end of the transport trolley 1 to the front end being the transport direction; a connector 2 connected to the transport trolley 1, the end of the connector 2 near the front end of the transport trolley 1 forming a V-shaped groove 25; and a positioning component 3 connected to the connector 2, the end of the positioning component 3 near the front end of the transport trolley 1 forming a V-shaped positioning block 38, the side of the V-shaped positioning block 38 being perpendicular to the connector 2, and the side of the V-shaped positioning block 38 being parallel to the side of the V-shaped groove 25.

[0028] Specifically, the top surface of the conveyor trolley 1 is secured to the car body using various clamps. Different conveyor trolleys 1 are required for different car models. The operator pushes the conveyor trolley 1 from bottom to top, causing the connecting piece 2 to enter the positioning assembly 3 to position the conveyor trolley 1, thus enabling the next step of processing the car body, such as welding and painting. The top surface of the connecting piece 2 is bolted to the conveyor trolley 1, and its bottom surface is bolted to the positioning assembly 3. This allows the positioning assembly 3 to fix the position of the conveyor trolley 1 via the connecting piece 2, thereby fixing the position of the car body relative to the processing equipment.

[0029] Next, the conveying trolley 1 moves forward until the V-shaped groove 25 at the front end of the connector 2 engages with the V-shaped positioning block 38 at the front end of the positioning component 3, so that the two sides of the V-shaped groove 25 and the V-shaped positioning block 38 overlap respectively, thereby fixing the position of the V-shaped groove 25 with the V-shaped positioning block 38, and the center line of the V-shaped positioning block 38 and the center line of the V-shaped groove 25 change from intersecting to coinciding, thereby allowing the positioning component 3 to determine the angle and position of the connector 2 relative to itself, and thus determine the position of the conveying trolley 1 relative to the positioning component 3.

[0030] Among them, the connecting parts 2 of the fixed conveyor trolley 1 of different models are all formed with V-shaped grooves 25 and V-shaped positioning blocks 38, so that the conveyor trolley 1 of various models can determine its position relative to the positioning component 3 through the V-shaped grooves 25 and V-shaped positioning blocks 38.

[0031] like Figure 2 As shown, the connector 2 is axially symmetric and also includes a connecting plate 21 connected to the conveying trolley 1. The connecting plate 21 is axially symmetric. The positioning component 3 is axially symmetric and also includes a mounting plate 31 connected to the ground. The mounting plate 31 is parallel to the connecting plate 21 and is axially symmetric. The center lines of the V-shaped positioning block 38 and the V-shaped groove 25, as well as the axis of symmetry of the connecting plate 21 and the mounting plate 31, are located in the same plane. This plane is perpendicular to the connecting plate 21 and the mounting plate 31 and is parallel to the conveying direction of the conveying trolley 1.

[0032] Specifically, both the connector 2 and the positioning component 3 are axially symmetrical, and the plane containing their axes of symmetry is a vertical plane, parallel to the conveying direction of the conveying trolley 1. Secondly, after the V-shaped positioning block 38 and the V-shaped groove 25 are engaged, their center lines coincide with the plane. As the V-shaped groove 25 gradually embeds into the V-shaped positioning block 38, its center line gradually coincides with the plane, thereby causing the axis of symmetry of the connector 2 to gradually coincide with the plane. Finally, after the sides of the V-shaped positioning block 38 and the V-shaped groove 25 are completely overlapped, the axis of symmetry of the connector 2 coincides with the plane, thus determining the position of the connector 2 relative to the positioning component 3. Because the position of the positioning component 3 relative to the production line is fixed, the position of the conveying trolley 1 relative to the production line is also fixed, thereby improving the positional accuracy of the processing technology and enhancing the processing quality.

[0033] Combination Figure 4 As shown, the connector 2 also includes positioning protrusions 22 symmetrically arranged at both ends of the connecting plate 21 along the conveying direction. The side of the positioning protrusion 22 near the rear end of the conveying trolley 1 is a positioning surface 23, which is perpendicular to the center line of the V-shaped groove 25. The positioning component 3 also includes clamping members 39 symmetrically arranged at both ends of the mounting plate 31 along the conveying direction. The clamping members 39 can apply pressure to the positioning surface 23 pointing towards the V-shaped positioning block 38.

[0034] Specifically, the axis of symmetry of the positioning protrusion 22 coincides with the center line of the V-shaped groove 25, and the positioning surface 23 is perpendicular to the center line of the V-shaped groove 25. When the V-shaped groove 25 begins to contact the V-shaped positioning block 38, the clamping member 39 applies pressure to the positioning surface 23. The direction of this pressure coincides with the center line of the V-shaped positioning block 38. Under the push of the clamping member 39, the V-shaped groove 25 moves towards the V-shaped positioning block 38, and the side of the V-shaped groove 25 slides relative to the side of the V-shaped positioning block 38. When the center line of the V-shaped groove 25 intersects the center line of the V-shaped positioning block 38 at an angle, the V-shaped groove 25 can rotate around the V-shaped positioning block 38 under the pressure applied by the clamping member 39, so that the center lines of the two gradually coincide. This allows the axis of symmetry of the connecting block and the axis of symmetry of the mounting plate 31 to fall on a plane parallel to the conveying direction, thereby determining the position of the conveying trolley 1 relative to the positioning component 3 and improving processing accuracy.

[0035] Furthermore, the clamping member 39 includes: cylinders 391 symmetrically arranged at both ends of the mounting plate 31 along the conveying direction, the movement direction of the cylinders 391 being rotation; and an arc-shaped positioning block 392 with one end connected to the moving end of the cylinders 391, the other end face of the arc-shaped positioning block 392 being perpendicular to the mounting plate 31, the cylinders 391 being able to drive the end face of the arc-shaped positioning block 392 to rotate and coincide with the positioning surface 23 of the positioning protrusion 22.

[0036] Specifically, cylinders 391 are fixedly connected to the left and right ends of the mounting plate 31, respectively. The moving ends of these cylinders 391 rotate, with the left cylinder 391 rotating counterclockwise and the right cylinder 391 rotating clockwise, ensuring that the moving ends of both cylinders 391 have a direction of movement parallel to the axis of symmetry of the mounting plate 31. Furthermore, the center of the arc-shaped positioning block 392 is fixedly connected to the moving end of the cylinder 391, allowing the cylinder 391 to drive the arc-shaped positioning block 392 to rotate counterclockwise and clockwise respectively. The free... The inner surface of the end contacts the positioning surface 23 and applies pressure to it. When the center line of the V-groove 25 coincides with the center line of the V-shaped positioning block 38, the inner surface tangent of the free end of the arc-shaped positioning block 392 coincides with the positioning surface 23. This makes the pressure applied by the arc-shaped positioning block 392 to the positioning surface 23 under the push of the cylinder 391 parallel to the center line of the V-groove 25, thereby stabilizing the relative position of the connecting block and the mounting block. This ensures that the position of the conveying trolley 1 relative to the positioning component 3 will not change when processing automobile models, thereby improving the processing quality of automobile models.

[0037] Secondly, the inner surface of the free end of the arc-shaped positioning block 392 applies a force to the positioning surface 23 in the same direction as its movement, thereby restricting the positioning surface 23 from moving away from the mounting plate 31, and thus restricting the connector 2 from moving away from the mounting plate 31. Secondly, the V-shaped positioning block 38 applies a force to the V-shaped groove 25 in the opposite direction to its movement, thereby allowing the connector 2 to remain relatively fixed in position with the mounting half 31 under the restriction of the arc-shaped positioning block 392 and the V-shaped positioning block 38, thereby stabilizing the position of the conveying trolley 1.

[0038] like Figure 5 and Figure 6 As shown, the connector 2 also includes an inner guide plate 32 connected to the connecting plate 21. The axis of symmetry of the inner guide plate 32 is located in a plane, and the inner guide plate 32 forms a side parallel to the conveying direction along its own axis of symmetry. The positioning assembly 3 also includes an inner guide wheel 34 connected to the mounting plate 31. The axis of symmetry of the inner guide wheel 34 is located in a plane, and the side of the inner guide wheel 34 is tangent to the side of the inner guide plate 32. The axis of the inner guide wheel 34 is perpendicular to the mounting plate 31.

[0039] Specifically, both the inner guide plate 32 and the V-shaped groove 25 are fixedly connected to the front end of the connecting plate 21. The axis of symmetry of the inner guide plate 32 coincides with the center line of the V-shaped groove 25, so that the two sides of the inner guide plate 32 also coincide with the center line of the V-shaped groove 25. Secondly, the inner guide wheel 34 is symmetrically arranged about the axis of symmetry of the mounting plate 31, and its axis is fixedly connected to the top surface of the mounting plate 31. When the conveying trolley 1 pushes the connecting block to move towards the positioning component 3, the side of the inner guide wheel 34 contacts the side of the inner guide plate 32 to form rolling friction, thereby restricting the movement of the connecting block relative to the mounting plate 31 and further constraining the movement trajectory of the conveying trolley 1. Furthermore, the axis of the inner guide wheel 34 is perpendicular to the top surface of the mounting plate 31, so that the side of the inner guide plate 32 is perpendicular to the connecting plate 21. This ensures that the height of the inner guide plate 32 relative to the inner guide wheel 34 does not affect the coincidence of the side of the inner guide plate 32 and the side of the inner guide wheel 34, improving the adaptability of the connecting plate 21.

[0040] Furthermore, the connector 2 also includes an auxiliary plate 26 connected to the connecting plate 21. The axis of symmetry of the auxiliary plate 26 is located in a plane, and the side of the auxiliary plate 26 is perpendicular to the mounting plate 31. The side surfaces of the auxiliary plates 26 intersect each other, and the intersection line is close to the front end of the conveying trolley 1. The positioning assembly 3 also includes an outer guide wheel 33 connected to the mounting plate 31. The axis of symmetry of the outer guide wheel 33 is located in a plane, and the axis of the outer guide wheel 33 is perpendicular to the mounting plate 31. The side surface of the outer guide wheel 33 is tangent to the side surface of the auxiliary plate 26.

[0041] Specifically, the top surface of the auxiliary plate 26 is fixedly connected to the bottom surface of the connecting plate 21 by bolts. The auxiliary plate 26 is symmetrically distributed on the left and right sides of the connecting plate 21 about the axis of symmetry. Its outer surface is at a certain angle to the axis of symmetry of the connecting plate 21, so that the intersection line of the outer surfaces of the left and right sides is close to the front end of the connecting plate 21, and thus the opening end of the outer surfaces of the left and right sides of the auxiliary plate 26 when they intersect faces the rear end of the connecting plate 21. Secondly, the outer guide wheel 33 is symmetrically distributed on the left and right sides of the mounting plate 31 about the axis of symmetry of the mounting plate 31. Its axis is fixedly connected to the mounting plate 31 by bolts, and its axis is perpendicular to the top surface of the mounting plate 31, so that the side surface of the outer guide wheel 33 and the outer surface of the auxiliary plate 26 are both perpendicular to the top surface of the mounting plate 31. When the connecting plate 21 moves toward the mounting plate 31, the side surface of the outer guide wheel 33 is tangent to the outer surface of the auxiliary plate 26 to form rolling friction, thereby restricting the movement of the connecting block relative to the mounting plate 31, and further constraining the movement trajectory of the conveying trolley 1.

[0042] Furthermore, the positioning component 3 also includes symmetrically arranged guide plates 32, the axis of symmetry of which is located in a plane, and the opposite sides of the guide plates 32 are perpendicular to the ground; the conveying trolley 1 includes symmetrically arranged drive wheels 12, the axis of symmetry of which is located in a plane, the end face of which is perpendicular to the ground, and the side of the drive wheels 12 relative to the guide plates 32 coincides with the opposite side of the guide plates 32.

[0043] Specifically, the guide plate 32 is fixed to the bottom surface by bolts and is symmetrically distributed on the left and right sides of the mounting plate 31. It is located at the front end of the mounting plate 31, so that when the conveying trolley 1 moves towards the mounting plate 31, it first contacts the opposite side of the guide plate 32. Secondly, the drive wheels 12 are symmetrically distributed on both sides of the connecting plate 21, with their axes parallel to the ground. The end faces of the left and right ends of the drive wheels 12 are perpendicular to the ground and symmetrical about the axis of symmetry of the connecting plate 21. During the movement of the conveying trolley 1 towards the mounting plate 31, the opposite side of the guide plate 32 contacts the end face of the drive wheel 12, thereby restricting the left and right movement of the drive wheel 12 and further constraining the movement trajectory of the conveying trolley 1, thus improving the positioning accuracy.

[0044] Furthermore, the transport trolley 1 also includes a vehicle body frame 11 connected to the connecting plate 21, which is used to fix the vehicle body.

[0045] Specifically, the car body is fixedly connected to the body frame 11 via a clamp, and the body frame 11 is fixedly connected to the connecting plate 21 via bolts. Therefore, different car models correspond to different types of body frames 11, and different types of body frames 11 correspond to different bolt mounting hole positions on the connecting plate 21. This unifies the shape of the connecting plate 21 without changing the positioning method of the connecting part 2 and the positioning component 3. This reduces the process of designing the connecting plate 21 and the positioning component 3 when producing different types of car bodies, avoids redundant design, reduces processing and design processes, improves the compatibility of this embodiment with different car models, and improves processing efficiency.

[0046] like Figure 7 As shown, the connector 2 also includes auxiliary plates 26 symmetrically arranged on both sides of the connecting plate 21 along the conveying direction, the bottom surface of the auxiliary plates 26 being parallel to the connecting plate 21 and the mounting plate 31; the positioning assembly 3 also includes an auxiliary wheel 35 arranged on the side of the mounting plate 31 near the connecting plate 21, the side of the auxiliary wheel 35 being tangent to the bottom surface of the auxiliary plate 26.

[0047] Specifically, the auxiliary plate 26 is fixedly connected to the bottom surface of the connecting plate 21 by bolts, and the axis of the auxiliary wheel 35 is parallel to the top surface of the mounting plate 31 and is fixedly connected to the top surface of the mounting plate 31 by bolts, so that the bottom surface of the auxiliary plate 26 and the side surface of the auxiliary wheel 35 form rolling friction. As a result, when the connecting piece 2 moves relative to the mounting plate 31, the auxiliary wheel 35 rolls relative to the auxiliary plate 26, thereby reducing the friction between the two parts and improving the positioning process of the connecting piece 2 relative to the positioning assembly 3.

[0048] like Figure 5 As shown, the positioning component 3 also includes limit switches 36 and buffer blocks 37 symmetrically arranged on both sides of one end of the mounting plate 31 near the V-shaped positioning block 38. The side of the buffer block 37 that contacts the connecting plate 21 forms a buffer structure. The limit switch 36 can generate an overlap signal after contacting the connecting plate 21.

[0049] Specifically, the limit switch 36 and the buffer block 37 are symmetrically arranged at the front end of the mounting plate 31. During the movement of the front end of the connecting plate 21 towards the front end of the mounting plate 31, one or both sides of the front end of the connecting plate 21 come into contact with the buffer block 37. The buffer block 37 absorbs the impact of the connecting plate 21 moving forward through the fixedly connected rubber block, thereby forming a buffer between the connecting plate 21 and the mounting plate 31. Secondly, when or after one side of the front end of the connecting plate 21 comes into contact with the buffer block 37, the same side will come into contact with the limit switch 36, thereby triggering the working signal of the clamping member 39, causing the cylinder 391 to start driving the arc-shaped positioning block 392 to apply pressure to the positioning protrusion 22. The pressure pushes the V-shaped groove 25 to fully overlap with the side of the V-shaped positioning block 38. At this time, the front sides of the connecting plate 21 are restricted by the buffer block 37, thus restricting the movement of the connecting plate 21. The front sides of the connecting plate 21 are in contact with the limit switch 36, thus causing the cylinder 391 to stop driving the arc-shaped positioning block 392 to continue rotating but to maintain a fixed position, thereby keeping the position between the connecting plate 21 and the mounting plate 31 fixed, thereby realizing the position of the conveying trolley 1 relative to the car body processing equipment, improving the positional accuracy of the conveying trolley 1. Then, the operator starts the car body processing equipment to process the car body on the conveying trolley 1.

[0050] 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.

[0051] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A processing and positioning device for automobile bodies, the processing and positioning device comprising a transport trolley (1) for fixing and transporting the automobile body, wherein the direction from the rear end of the transport trolley (1) to the front end is the transport direction, characterized in that, The processing positioning device further includes: A connector (2) connected to the conveying trolley (1) has a V-shaped groove (25) formed at one end near the front end of the conveying trolley (1); A positioning component (3) connected to the connector (2) has a V-shaped positioning block (38) formed at one end near the front end of the conveying trolley (1). The side of the V-shaped positioning block (38) is perpendicular to the connector (2), and the side of the V-shaped positioning block (38) is parallel to the side of the V-shaped groove (25).

2. The processing positioning device according to claim 1, characterized in that: The connector (2) is axially symmetrical, and the connector (2) also includes a connecting plate (21) connected to the conveying trolley (1), which is axially symmetrical; The positioning component (3) is axially symmetric. The positioning component (3) also includes a mounting plate (31) connected to the ground. The mounting plate (31) is parallel to the connecting plate (21). The mounting plate (31) is axially symmetric. The center lines of the V-shaped positioning block (38) and the V-shaped groove (25), as well as the axis of symmetry of the connecting plate (21) and the mounting plate (31), are located in the same plane. This plane is perpendicular to the connecting plate (21) and the mounting plate (31), and the plane is parallel to the conveying direction of the conveying trolley (1).

3. The processing positioning device according to claim 2, characterized in that: The connector (2) also includes positioning protrusions (22) symmetrically arranged at both ends of the connecting plate (21) along the conveying direction. The side of the positioning protrusion (22) near the rear end of the conveying trolley (1) is a positioning surface (23), which is perpendicular to the center line of the V-shaped groove (25). The positioning component (3) further includes clamping members (39) symmetrically arranged at both ends of the mounting plate (31) along the conveying direction, which clamping members (39) can apply pressure to the positioning surface (23) pointing towards the V-shaped positioning block (38).

4. The processing positioning device according to claim 3, characterized in that: The clamping element (39) includes: Cylinders (391) symmetrically arranged at both ends of the mounting plate (31) along the conveying direction, the movement direction of the cylinders (391) being rotation; and An arc-shaped positioning block (392) is connected at one end to the moving end of the cylinder (391). The other end face of the arc-shaped positioning block (392) is perpendicular to the mounting plate (31). The cylinder (391) can drive the end face of the arc-shaped positioning block (392) to rotate and coincide with the positioning surface (23) of the positioning protrusion (22).

5. The processing positioning device according to claim 2, characterized in that: The connector (2) further includes an inner guide plate (32) connected to the connecting plate (21), the axis of symmetry of the inner guide plate (32) is located in the plane, and the inner guide plate (32) forms a side side parallel to the conveying direction along its own axis of symmetry; The positioning component (3) further includes an inner guide wheel (34) connected to the mounting plate (31). The axis of symmetry of the inner guide wheel (34) is located in the plane, the axis of the inner guide wheel (34) is perpendicular to the mounting plate (31), and the side of the inner guide wheel (34) is tangent to the side of the inner guide plate (32).

6. The processing positioning device according to claim 2, characterized in that: The connector (2) further includes an auxiliary plate (26) connected to the connecting plate (21), the axis of symmetry of the auxiliary plate (26) is located in the plane, the side of the auxiliary plate (26) is perpendicular to the mounting plate (31), and the side of the auxiliary plate (26) intersects the front end of the conveying trolley (1). The positioning component (3) further includes an outer guide wheel (33) connected to the mounting plate (31). The axis of symmetry of the outer guide wheel (33) is located in the plane, the axis of the outer guide wheel (33) is perpendicular to the mounting plate (31), and the side of the outer guide wheel (33) is tangent to the side of the auxiliary plate (26).

7. The processing positioning device according to claim 2, characterized in that: The positioning component (3) further includes symmetrically arranged guide plates (32), the axis of symmetry of which is located in the plane, and the opposite sides of which are perpendicular to the ground. The conveying trolley (1) includes symmetrically arranged drive wheels (12), the axis of symmetry of which is located in the plane, the end face of which is perpendicular to the ground, and the side of which is relative to the guide plate (32) coincides with the opposite side of the guide plate (32).

8. The processing positioning device according to claim 7, characterized in that: The transport trolley (1) also includes a vehicle body frame (11) connected to the connecting plate (21), which is used to fix the vehicle body.

9. The processing positioning device according to claim 2, characterized in that: The connector (2) further includes auxiliary plates (26) symmetrically arranged on both sides of the connecting plate (21) along the conveying direction, the bottom surface of which is parallel to the connecting plate (21) and the mounting plate (31); The positioning component (3) further includes an auxiliary wheel (35) disposed on the side of the mounting plate (31) near the connecting plate (21), the side of the auxiliary wheel (35) being tangent to the bottom surface of the auxiliary plate (26).

10. The processing positioning device according to claim 2, characterized in that: The positioning component (3) also includes a limit switch (36) and a buffer block (37) symmetrically arranged on both sides of the mounting plate (31) near the V-shaped positioning block (38). The side of the buffer block (37) that contacts the connecting plate (21) forms a buffer structure. The limit switch (36) can generate an overlap signal after contacting the connecting plate (21).

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