Tool switching mechanism for multi-vehicle-type production

Abstract

The utility model discloses a tool switching mechanism for multi-vehicle type production, which comprises two symmetrically arranged long mounting plates, a plurality of first three-axis heavy-load NCs are arranged on the long mounting plate on one side, a plurality of second three-axis heavy-load NCs are arranged on the long mounting plate on the other side, positioning mechanisms are arranged at the tail ends of the first three-axis heavy-load NCs, and a plurality of second three-axis heavy-load NCs are arranged at the tail ends of the second three-axis heavy-load NCs. A replaceable clamp mechanism is arranged on the positioning mechanism; an air cylinder clamp assembly is arranged at the tail end of the second three-axis heavy load NC; when vehicle types are switched, only corresponding clamp mechanisms need to be replaced, a large number of clamps do not need to be manually disassembled and installed one by one, the tool switching time is greatly shortened, the production efficiency is improved, the problems that traditional tool switching is inconvenient and time-consuming are effectively solved, and the efficient production requirement for collinear production of multiple vehicle types is met.

Description

Technical Field

[0001] This utility model relates to the field of tooling switching technology, and in particular to a tooling switching mechanism for multi-vehicle production. Background Technology

[0002] The side panel welding production line is a crucial step in automobile body manufacturing, primarily used for the welding and assembly of the left and right side panel assemblies. Its design must comprehensively consider production cycle time, vehicle compatibility, positioning accuracy, and flexibility requirements.

[0003] In the automotive manufacturing sector, especially on automotive body side panel welding production lines, the co-production of multiple vehicle models has become the norm due to increasingly diversified and personalized market demands. However, traditional tooling switching methods have the following drawbacks: most existing tooling fixtures are designed specifically for particular vehicle models. When switching models is required, the operation is complex and time-consuming, often requiring manual disassembly and installation of different fixtures, which seriously affects production efficiency. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a tooling switching mechanism for multi-vehicle production.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A tooling switching mechanism for multi-model production includes two symmetrically arranged mounting plates. Multiple first three-axis heavy-duty NCs are mounted on one mounting plate, and multiple second and third-axis heavy-duty NCs are mounted on the other mounting plate. The first three-axis heavy-duty NCs are equipped with a positioning mechanism at their ends, and the positioning mechanism is equipped with a replaceable clamping mechanism. The second and third-axis heavy-duty NCs are equipped with a cylinder clamping assembly at their ends.

[0007] The positioning mechanism is further configured such that: the positioning mechanism includes a mounting bracket connected to the first three-axis heavy-duty NC; the upper surface of the mounting bracket is provided with a mounting plate; and the mounting plate is provided with a gun changing disc, a guide positioning component, and a sensor.

[0008] The guide positioning component is further configured such that: a pad is provided on the upper surface of the pad, an adjustment block is provided on the inner side of the L-shaped block, and a guide pin is provided on the adjustment block.

[0009] Further configured as follows: one or more gaskets are provided between the two inner sides of the L-shaped block and the two sides of the adjusting block; a first straight groove is provided on the upper surface of the gasket, and a second straight groove is provided on the upper surface of the mounting plate perpendicular to the first straight groove; the adjusting block is installed in the first straight groove by the mating threads of the first bolt and nut, and is installed in the second straight groove by the mating threads of the second bolt and nut.

[0010] The fixture mechanism is further configured such that: the fixture mechanism includes a mounting base, a gun-changing female disc adapted to the gun-changing male disc is provided on the lower surface of the mounting base, and a guide positioning hole adapted to the guide pin is provided on the mounting base; the fixture mechanism includes a side clamp.

[0011] The side clamp is further configured as follows: the side clamp includes a first clamping cylinder mounted on the mounting base, a cylinder fixing block is provided on the cylinder body of the first clamping cylinder, a first L-frame is provided on the cylinder fixing block, a second L-frame is provided on the first L-frame, and a support block for lifting vehicle parts is provided on the second L-frame.

[0012] A further feature is provided: a cylinder protective cover is provided on one side of the first clamping cylinder.

[0013] Further configured as follows: the cylinder clamping assembly includes a square tube support connected to the second and third axis heavy-duty NC, a connecting plate is provided on the square tube support, a first clamping block is provided on the upper surface of one side of the connecting plate, a second clamping cylinder is provided on the other side of the connecting plate, a second pressure arm is connected to the output end of the second clamping cylinder, and a second clamping block is provided on the lower surface of the second pressure arm, which is directly opposite to the first clamping block.

[0014] The configuration is further defined as follows: a first adjusting plate is provided between the first clamping block and the connecting plate; a second adjusting plate is provided between the second pressure arm and the second clamping block.

[0015] Further configuration: the two mounting plates are mounted on the ground using expansion bolts.

[0016] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0017] 1. The tooling switching mechanism of this utility model, through servo control of the first and third axis heavy-duty NC and the second and third axis heavy-duty NC, can quickly and accurately move the fixture mechanism and cylinder fixture assembly to the required position and stop. When switching vehicle models, only the corresponding fixture mechanism needs to be replaced, eliminating the need for manual disassembly and installation of a large number of fixtures, greatly shortening the tooling switching time, improving production efficiency, effectively solving the problems of inconvenience and time consumption in traditional tooling switching, and meeting the high-efficiency production requirements of multi-vehicle co-production.

[0018] 2. High-precision switching ensures product quality: When switching fixture mechanisms, the initial positioning is achieved by the cooperation between the guide pin and the guide positioning hole, with an accuracy of ±0.25mm. Then, the positioning pins of the male and female gun changing discs are used for precise positioning, ensuring high precision of fixture switching, improving the stability of welding and assembly quality, avoiding problems such as component assembly deviations caused by inaccurate positioning, and ensuring product quality when producing different vehicle models.

[0019] 3. Enhanced Flexible Production Capabilities: This tooling switching mechanism can adapt to the production needs of various vehicle models. When different vehicle models need to be produced, only the corresponding fixture mechanism needs to be changed. The operation is simple and quick, without the need for large-scale modifications to the production line. This efficient and flexible switching method greatly improves the flexibility and adaptability of the production line, enabling enterprises to better respond to the diversified demands of the market and achieve small-batch, customized production of multiple vehicle models. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the guide and positioning component of this utility model;

[0024] Figure 4 This is a schematic diagram showing the cooperation state of the positioning mechanism and the clamping mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the cylinder clamp assembly of this utility model;

[0027] Reference numerals: 1. Mounting plate; 2. First three-axis heavy-duty NC; 3. Second three-axis heavy-duty NC; 4. Positioning mechanism; 5. Clamping mechanism; 6. Cylinder clamping assembly; 7. Mounting bracket; 8. Mounting plate; 9. Gun changing disc; 10. Guide positioning assembly; 11. Sensor; 12. Pad; 13. L-shaped block; 14. Adjusting block; 15. Guide pin; 16. Shim; 17. First bolt; 18. Second bolt; 19. Mounting base ; 20. Gun changing mother plate; 21. Side clamp; 22. First clamping cylinder; 23. Cylinder protective cover; 24. Cylinder fixing block; 25. First L-frame; 26. Second L-frame; 27. Support block; 28. First pressure arm; 29. ​​Pressure block; 30. Square tube support; 31. Connecting plate; 32. First clamping block; 33. First adjusting plate; 34. Second clamping cylinder; 35. Second pressure arm; 36. Second clamping block; 37. Second adjusting plate. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Example

[0032] Reference Figures 1-6 This utility model discloses a tooling switching mechanism for multi-model production, which includes two symmetrically arranged mounting plates 1, and the two mounting plates 1 are mounted on the ground by expansion bolts.

[0033] Multiple first three-axis heavy-duty NC2s are installed on the long plate 1 on one side, and multiple second and third-axis heavy-duty NC3s are installed on the long plate 1 on the other side.

[0034] Among them, the three-axis heavy-duty NC switches the position in three directions with a servo, and can stop at any position. It is worth mentioning that the heavy-duty NC (NC Locator) is a numerical control positioning device, which is an industrial equipment that combines numerical control technology and automated positioning. It is widely used in mechanical manufacturing, automobile assembly, flexible production lines and other fields. It has three servo axes, each of which realizes servo displacement in one direction. Its specific principle will not be elaborated here.

[0035] A positioning mechanism 4 is provided at the end of the first three-axis heavy-duty NC2, and a replaceable clamping mechanism 5 is provided on the positioning mechanism 4.

[0036] A cylinder clamp assembly 6 is provided at the end of the second and third axis heavy-duty NC3;

[0037] The positioning mechanism 4 includes a mounting frame 7 connected to the first three-axis heavy-duty NC2. A mounting plate 8 is provided on the upper surface of the mounting frame 7. A gun changing disc 9, a guide positioning assembly 10, and a sensor 11 are provided on the mounting plate 8.

[0038] The guide positioning component 10 includes a pad 12, an L-shaped block 13 is provided on the upper surface of the pad 12, an adjusting block 14 is provided on the inner side of the L-shaped block 13, a guide pin 15 is provided on the adjusting block 14, and one or more shims 16 are provided between the two inner sides of the L-shaped block 13 and the two sides of the adjusting block 14. In this embodiment, by adjusting the number and thickness of the shims 16, the X and Y horizontal positions of the component adjusting block 14 are adjusted to compensate for processing and assembly errors.

[0039] Furthermore, the upper surface of the pad 12 is provided with a first straight groove, and the upper surface of the mounting plate 8 is provided with a second straight groove perpendicular to the first straight groove. The adjusting block 14 is installed in the first straight groove by the mating threads of the first bolt 17 and the nut, and is installed in the second straight groove by the mating threads of the second bolt 18 and the nut.

[0040] During adjustment, first determine the direction (X-axis or Y-axis) and the amount of adjustment required. For X-axis adjustment, loosen the first bolt 17 and the second bolt 18, and add, remove, or replace the shims 16 on one side of the L-shaped block 13 and adjusting block 14 to change their position. After adjustment, tighten the first bolt 17 and the second bolt 18. Similarly, for Y-axis adjustment, operate the shims 16 on the other side. Repeatedly and alternately fine-tune the positions in both directions until the adjusting block 14 reaches the desired position and the bolts are tightened to secure it.

[0041] In this embodiment, the clamping mechanism 5 includes a mounting base 19, a gun changing female plate 20 adapted to the gun changing male plate 9 is provided on the lower surface of the mounting base 19, and a guide positioning hole adapted to the guide pin 15 is provided on the mounting base 19.

[0042] When installing the clamping mechanism 5, the clamping mechanism 5 and the positioning mechanism 4 are first positioned by the cooperation between the guide pin 15 and the guide positioning hole. Then, the positioning pins of the gun changing male plate 9 and the gun changing female plate 20 are engaged to perform precise positioning. When the clamping mechanism 5 is completely placed on the mounting plate 8, the locking mechanism between the gun changing male plate and the gun changing female plate 20 is locked, and the positioning is completed.

[0043] It is worth mentioning that the gun changing male disc 9 and the gun changing female disc 20 are conventional devices in the aforementioned technical field, and their principles will not be described in detail here. In this embodiment, the model of the gun changing disc is Q01070544QT-120-JQRC.

[0044] In this embodiment, the sensor 11 is used to sense whether the clamping mechanism 5 is in position;

[0045] Furthermore, the clamping mechanism 5 also includes a side clamp 21 disposed on the mounting base 19. The side clamp 21 includes a first clamping cylinder 22 disposed on the mounting base 19. A cylinder guard 23 is disposed on one side of the first clamping cylinder 22. A cylinder fixing block 24 is disposed on the cylinder body of the first clamping cylinder 22. A first L-frame 25 is disposed on the cylinder fixing block 24. A second L-frame 26 is disposed on the first L-frame 25. A support block 27 for lifting vehicle parts is disposed on the second L-frame 26.

[0046] The output end of the first clamping cylinder 22 is connected to the first pressure arm 28 through multiple blocks, and the first pressure arm 28 is located directly above the support block 27. A pressure block 29 is provided below the first pressure arm 28.

[0047] In this embodiment, the number, position, and shape of the blocks are different, and they are adaptively adjusted according to the vehicle parts of the clamping side panel that are compatible with them.

[0048] In this embodiment, the cylinder clamping assembly 6 includes a square tube support 30 connected to the second and third axis heavy load NC3. A connecting plate 31 is provided on the square tube support 30. A first clamping block 32 is provided on one side of the upper surface of the connecting plate 31, and a first adjusting piece 33 is provided between the first clamping block 32 and the connecting plate 31.

[0049] Furthermore, the first clamping block 32, the first adjusting plate 33, and the connecting plate 31 are connected by bolts;

[0050] A second clamping cylinder 34 is provided on the other side of the connecting plate 31. The output end of the second clamping cylinder 34 is connected to a second pressure arm 35. A second clamping block 36 is provided on the lower surface of the second pressure arm 35, which is directly opposite to the first clamping block 32. A second adjusting piece 37 is provided between the second pressure arm 35 and the second clamping block 36.

[0051] Furthermore, the second pressure arm 35, the second adjusting plate 37, and the second clamping block 36 are connected by bolts.

[0052] The working principle and beneficial effects of this utility model are as follows:

[0053] The first and second heavy-duty NC axes mounted on the long plates 1 on both sides are the key drive components of the entire device. They are servo-controlled in three directions (generally understood as the X, Y, and Z spatial coordinate axes), which can precisely move the end clamping mechanism 5 or the cylinder clamping assembly 6 to any desired position and stop it. This allows the device to flexibly adapt to the positioning and clamping requirements of different vehicle models during production.

[0054] The positioning mechanism 4 is installed at the end of the first three-axis heavy-duty NC. The mounting bracket 7 is connected to the first three-axis heavy-duty NC, and the mounting plate 8 is fixed on the upper surface of the mounting bracket 7. The gun changing disc 9, the guide positioning assembly 10, and the sensor 11 are all mounted on the mounting bracket 7.

[0055] The pad 12 in the guide positioning assembly 10 is used to support the L-shaped block, and the adjusting block 14 inside the L-shaped block is engaged with the guide positioning hole on the clamping mechanism 5 through the guide pin 15. By adjusting the number and thickness of the shims 16 between the L-shaped block and the adjusting block 14, the position of the adjusting block 14 in the X and Y horizontal directions can be changed.

[0056] When installing the clamping mechanism 5, initial positioning is achieved first through the cooperation between the guide pin 15 and the guide positioning hole, creating an accuracy range of ±0.25mm between the clamping mechanism 5 and the positioning mechanism 4. Then, the positioning pins of the male and female gun-changing discs 9 and 20 engage for precise positioning. Once the clamping mechanism 5 is fully seated on the mounting plate 8, the locking mechanism between the male and female gun-changing discs 20 locks in place, completing the positioning. Simultaneously, the sensor 11 detects whether the clamping mechanism 5 is in position, ensuring the correctness and reliability of the positioning process.

[0057] The clamping mechanism 5 includes a mounting base 19, the lower surface of which has a female gun-changing disc 20 that is compatible with the male gun-changing disc 9 on the positioning mechanism 4. A side clamp 21 on the mounting base 19 is used to clamp vehicle parts. A first clamping cylinder 22 is connected to a first pressure arm 28 via multiple blocks. A pressure block 29 below the first pressure arm 28 can perform a clamping operation on the parts. When clamping is required, the first clamping cylinder 22 operates, driving the first pressure arm 28 and the pressure block 29 to move towards the support block 27, thereby clamping the parts.

[0058] Similarly, when it is necessary to clamp the parts, the second clamping cylinder 34 of the cylinder clamping assembly 6 is activated, driving the second pressure arm 35 and the second clamping block 36 to move towards the first clamping block 32, thereby achieving the clamping of the parts.

[0059] When changing vehicle models, determine the fixture mechanism 5 that needs to be replaced (different vehicle models require different fixture mechanisms 5 to adapt to the shape, size, and installation position of their parts, etc.).

[0060] Then remove the clamping mechanism 5 from the positioning mechanism 4. This process requires disconnecting the clamping mechanism 5 from the positioning mechanism 4. This includes the engagement of the gun changing female disc 20 and the gun changing male disc 9, as well as the engagement of the guide pin 15 and the guide positioning hole. Carefully remove the old clamping mechanism 5 from the mounting plate 8 and replace it with a new clamping mechanism 5.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tooling switching mechanism for multi-vehicle production, characterized in that, It includes two symmetrically arranged mounting plates (1). On one side of the mounting plate (1), multiple first three-axis heavy-duty NCs (2) are mounted, and on the other side of the mounting plate (1), multiple second and third-axis heavy-duty NCs (3) are mounted. The first three-axis heavy-duty NCs (2) are equipped with a positioning mechanism (4) at their ends, and the positioning mechanism (4) is equipped with a replaceable clamping mechanism (5). The second and third-axis heavy-duty NCs (3) are equipped with a cylinder clamping assembly (6) at their ends.

2. The tool switching mechanism for multi-vehicle production according to claim 1, wherein The positioning mechanism (4) includes a mounting bracket (7) connected to the first three-axis heavy-duty NC (2). The upper surface of the mounting bracket (7) is provided with a mounting plate (8). The mounting plate (8) is provided with a gun changing disc (9), a guide positioning component (10), and a sensor (11).

3. The tool switching mechanism for multi-vehicle production according to claim 2, wherein The guide positioning component (10) includes a pad (12), an L-shaped block (13) is provided on the upper surface of the pad (12), an adjusting block (14) is provided on the inner side of the L-shaped block (13), and a guide pin (15) is provided on the adjusting block (14).

4. The tool switching mechanism for multi-vehicle production according to claim 3, wherein One or more gaskets (16) are provided between the two inner sides of the L-shaped block (13) and the two sides of the adjusting block (14); the upper surface of the gasket (12) is provided with a first straight groove, and the upper surface of the mounting plate (8) is provided with a second straight groove perpendicular to the first straight groove. The adjusting block (14) is installed in the first straight groove by the mating threads of the first bolt (17) and the nut, and is installed in the second straight groove by the mating threads of the second bolt (18) and the nut.

5. The tool switching mechanism for multi-vehicle production according to claim 1, wherein The clamping mechanism (5) includes a mounting base (19), a gun changing female plate (20) adapted to the gun changing male plate (9) is provided on the lower surface of the mounting base (19), and a guide positioning hole adapted to the guide pin (15) is provided on the mounting base (19). The clamping mechanism (5) includes a side clamp (21).

6. The tool switching mechanism for multi-vehicle production according to claim 5, wherein The side clamp (21) includes a first clamping cylinder (22) mounted on a mounting base (19). A cylinder fixing block (24) is provided on the cylinder body of the first clamping cylinder (22). A first L-frame (25) is provided on the cylinder fixing block (24). A second L-frame (26) is provided on the first L-frame (25). A support block (27) for lifting vehicle parts is provided on the second L-frame (26).

7. The tool switching mechanism for multi-vehicle production according to claim 6, wherein A cylinder guard (23) is provided on one side of the first clamping cylinder (22).

8. The tool switching mechanism for multi-vehicle production according to claim 1, characterized in that, The cylinder clamp assembly (6) includes a square tube support (30) connected to the second and third axis heavy-duty NC (3). A connecting plate (31) is provided on the square tube support (30). A first clamping block (32) is provided on one upper surface of the connecting plate (31). A second clamping cylinder (34) is provided on the other side of the connecting plate (31). A second pressure arm (35) is connected to the output end of the second clamping cylinder (34). A second clamping block (36) is provided on the lower surface of the second pressure arm (35) and is directly opposite to the first clamping block (32).

9. The tool switching mechanism for multi-vehicle production according to claim 8, wherein The first adjusting piece (33) is arranged between the first clamping block (32) and the connecting plate (31); the second adjusting piece (37) is arranged between the second pressing arm (35) and the second clamping block (36).

10. The tool switching mechanism for multi-vehicle production according to claim 1, characterized in that, Two mounting long plates (1) are mounted on the ground through expansion bolts.

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