Inserting type bottom plate side milling tool

Abstract

The utility model relates to the technical field of machining tools, and discloses a plug-in type bottom plate side milling tool which comprises a base used for supporting a product, a cover plate is arranged above the base, a driving mechanism used for turning over the cover plate is connected between the cover plate and the base, an electric control box is arranged on the side wall of the base, and a plug-in type bottom plate is arranged on the electric control box. A plurality of electric pressing pieces used for pressing products are arranged on the cover plate, electrically connected to the electric control box and evenly distributed on the cover plate. The machining method has the effect of improving the machining precision of the insertion type bottom plate.

Description

Technical Field

[0001] This application relates to the technical field of machining tooling, and in particular to a side milling tooling for a plug-in type bottom plate. Background Art

[0002] The plug-in type bottom plate is a structural component used for the bottom of an automobile, which has high structural strength and can withstand the impact and vibration during the driving of the automobile, protecting the safety of passengers and the vehicle.

[0003] In the prior art, the plug-in type bottom plate is formed by welding multiple modular lightweight alloy plates. After welding, the plug-in type bottom plate has extremely strict requirements for flatness and welding precision. Generally, the flatness of the plug-in type bottom plate directly affects the assembly precision and appearance quality of the vehicle body. In order to ensure the precise docking between the plug-in type bottom plate and other components of the vehicle body, the flatness requirement of the plug-in type bottom plate is usually within the range of ±0.5 mm; the products welded by ordinary argon arc welding will produce relatively obvious weld beads. In order to meet the extremely high welding requirements of the plug-in type bottom plate, friction stir welding with high welding quality is generally used for welding.

[0004] During the production process of the plug-in type bottom plate, after the product welding is completed, side milling operation needs to be further carried out. However, the flat area of the product after welding is large. Clamping and fixing the side milling part alone is extremely likely to cause the flatness of the whole product to decrease during the milling tremor process, and it is difficult to ensure the position tolerance of the milled part of the product, thus reducing the machining precision of the plug-in type bottom plate product. Utility Model Content

[0005] In order to improve the machining precision of the plug-in type bottom plate, this application provides a side milling tooling for a plug-in type bottom plate.

[0006] The side milling tooling for a plug-in type bottom plate provided by this application adopts the following technical solutions:

[0007] A side milling tooling for a plug-in type bottom plate includes a base for supporting the product. A cover plate is arranged above the base, and a driving mechanism for flipping the cover plate is connected between the cover plate and the base. An electric control box is arranged on the side wall of the base, and a plurality of electric pressing members for pressing the product are arranged on the cover plate. The plurality of electric pressing members are electrically connected to the electric control box and are evenly distributed on the cover plate.

[0008] By adopting the above technical solution, when performing side milling operation, first control the driving mechanism through the electric control box to flip and open the cover plate, and then place the product on the base; then, control the driving mechanism again to flip the cover plate and press the product tightly. At this time, the electric pressing member further presses the product under the control of the electric control box to ensure its stability. Finally, the side milling operation can be carried out on the product. By precisely controlling the actions of each component through the electric control box, the flipping of the cover plate and the pressing of the electric pressing member are realized, which not only evenly disperses the product binding force, improves the flatness of the part fitting, but also avoids the overcut phenomenon during the machining process, and further improves the stability of the plug-in bottom plate during side milling, thereby improving the machining accuracy of the plug-in bottom plate.

[0009] Optionally, the driving mechanism includes a driving cylinder, a driving arm hinged to the piston rod of the driving cylinder, and a fixed arm rotatably matched with the driving arm. The inner top of the side wall of the base parallel to the length direction of the positioning groove is fixedly provided with a hinge shaft seat. The cylinder body of the driving cylinder is rotatably connected to the hinge shaft seat, and the end of its piston rod is hinged to the end of the secondary arm of the driving arm. The main arm of the driving arm is parallel to the length direction of the side wall of the cover plate and is fixedly arranged on the side wall of the cover plate. The fixed arm is fixedly arranged on the side top wall of the base, and the connection between the main and secondary arms of the fixed arm and the driving arm is rotatably connected through a rotating shaft.

[0010] By adopting the above technical solution, the linkage structure of the driving cylinder, the driving arm and the fixed arm ensures the stability and accuracy of the flipping of the cover plate, and the pressing force of the driving arm driving the cover plate on the product is calculated according to the structure and flatness of the product and is controlled by the electric control system, thereby further improving the machining accuracy of the product.

[0011] Optionally, a locking cylinder electrically connected to the electric control box is arranged at the bottom of the side wall of the base. A locking through hole inserted and matched with the piston rod of the locking cylinder is opened on the secondary arm of the driving arm. When the cover plate is in the open state, the piston rod of the locking cylinder extends and is inserted into the locking through hole.

[0012] By adopting the above technical solution, when the cover plate is in the open state, the piston rod of the locking cylinder will extend and be inserted into the locking through hole, thereby improving the stability of the cover plate in the open state. This design can reduce the accidental closing of the cover plate caused by misoperation or external force interference, providing an additional safety locking function for the tooling, thereby improving the safety of the tooling.

[0013] Optionally, a limiting air cylinder is provided on the side wall of the base near the end of the driving arm away from the rotating shaft. The piston rod of the limiting air cylinder extends upward above the end of the driving arm, and a limiting block is provided at the end of the piston rod of the limiting air cylinder. After the cover plate is in the closed state, the piston rod of the limiting air cylinder extends, and the limiting block presses the driving arm against the fixed seat.

[0014] By adopting the above technical solution, after the cover plate is closed on the base, the piston rod of the limiting air cylinder extends, so that the limiting block presses the end of the driving arm tightly against the fixed seat. This design can further enhance the stability after the cover plate is closed, reduce the possibility of the cover plate being accidentally opened due to vibration or external force, provide accurate positioning and lateral support for the product, and thus improve the fixing effect of the tooling on the product.

[0015] Optionally, a plurality of electric push cylinders are provided on the side wall of the base near the side milling of the product. The piston rod of each electric push cylinder extends toward the side wall of the product. When side milling is performed on the product, the end of the piston rod of each electric push cylinder abuts against the side wall of the product.

[0016] By adopting the above technical solution, during the side milling process, the piston rod of the electric push cylinder will extend and abut against the side wall of the product, providing an additional lateral support force to further limit the product. This design can further improve the stability of the product during the side milling process, thereby improving the processing accuracy of the product.

[0017] Optionally, a positioning groove is provided on the base corresponding to each part bottom protrusion on the product, and a plurality of limiting plates are uniformly arranged on both side walls of the base perpendicular to the length direction of the positioning groove. A three-axis air cylinder is fixedly provided on the bottom top wall of the base near each limiting plate. The piston shaft and the guide shaft of the three-axis air cylinder are both connected to the corresponding limiting plate and drive the limiting plate to move toward the side wall of the product. The limiting plate pushes the side wall of the product during the movement until the side wall of the product abuts against the side wall of the base.

[0018] By adopting the above technical solution, compared with single-axis and double-axis air cylinders, the three-axis air cylinder can withstand a greater lateral force, is not only more convenient to install, but also can be applied to occasions with higher installation accuracy. Combining the positioning groove, the limiting plate and the three-axis air cylinder can provide more accurate positioning and lateral support for the product, thus further ensuring the stability and accuracy of processing.

[0019] Optionally, the electric pressing member includes a voltage cylinder provided on the top of the cover plate and a pressing plate provided on the bottom of the cover plate for pressing the product. The cylinder body of the voltage cylinder is fixedly provided on the cover plate, and its piston rod slidably passes through the cover plate and is connected to the pressing plate.

[0020] By adopting the above technical solution, the electric control box is used to control a number of electric cylinders evenly covering the product to apply a uniform restraining force to the parts in various positions, which can further improve the flatness of the parts fitting, thereby reducing the possibility of overcutting during the milling process of the product and improving the processing accuracy of the plug-in base plate.

[0021] Optionally, a guide rod parallel to the extension and retraction direction of the piston rod of the voltage cylinder is provided on the top of each pressing plate facing away from the product, and the guide rod slides through the cover plate.

[0022] By adopting the above technical solution, the setting of the guide rod provides guidance and limiting functions for the lifting and lowering of the pressing plate, thereby further improving the stability of the movement of the pressing plate when applying pressure to the product.

[0023] Optionally, a rubber pad is provided on the side wall of each pressing plate facing the product.

[0024] By adopting the above technical solution, the provision of the rubber pad converts the rigid resistance of the pressing plate to the product into flexible resistance, thereby reducing the possibility of the pressing plate directly pressing on the product and causing damage to the product.

[0025] Optionally, a chip dropping channel is provided at the side milling position of the base corresponding to the product.

[0026] By adopting the above technical solution and setting up the chip dropping channel, it is convenient to clean up the debris generated during the processing in time, thereby ensuring the cleanliness of the processing area and improving the practicality of the tooling and the convenience of operation.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. When implementing the side milling operation, first control the drive mechanism through the electric control box to flip and open the cover, and then place the product on the base; then control the drive mechanism again to flip the cover and press the product. At this time, the electric clamping parts further press the product under the control of the electric control box to ensure its stability. Finally, the product can be side milled. The electric control box accurately controls the movements of each component to achieve the flipping of the cover and the pressing of the electric clamping parts, which not only evenly disperses the restraining force of the product and improves the flatness of the parts fitting, but also avoids overcutting during the processing process. It also improves the stability of the plug-in base plate during the side milling process, thereby improving the processing accuracy of the plug-in base plate;

[0029] 2. The linkage structure of the driving cylinder, driving arm and fixed arm is used to ensure the stability and accuracy of the cover flipping. The pressing force of the driving arm on the product is calculated according to the structure and flatness of the product and controlled by the electronic control system, thereby further improving the processing accuracy of the product.

[0030] 3. When the cover plate is in the open state, the piston rod of the locking cylinder extends and is inserted into the locking through hole, thereby improving the stability of the cover plate in the open state. This design can reduce the accidental closing of the cover plate caused by misoperation or external interference, providing an additional safety locking function for the tooling and thus improving the safety of the tooling. Description of the Drawings

[0031] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application.

[0032] Figure 2 is a schematic diagram showing the connection relationship between the limit plate, the three-axis cylinder and the base in an embodiment of the present application.

[0033] Figure 3 is a schematic diagram showing the connection relationship between the driving cylinder, the driving arm and the fixed arm in an embodiment of the present application.

[0034] Figure 4 is a schematic diagram showing the positional relationship between the limit block, the driving arm and the base in an embodiment of the present application.

[0035] Description of the Reference Numerals:

[0036] 1. Base; 11. Positioning groove; 12. Hinge shaft seat; 13. Guide rod; 14. Chip removal channel; 2. Limit plate; 21. Three-axis cylinder; 3. Cover plate; 4. Driving mechanism; 41. Driving cylinder; 42. Driving arm; 421. Locking through hole; 422. Avoidance opening; 43. Fixed arm; 5. Electric pressing member; 51. Voltage cylinder; 52. Pressing plate; 521. Rubber pad; 6. Electric control box; 7. Locking cylinder; 8. Limit cylinder; 81. Limit block; 9. Electric push cylinder. Detailed Description of the Embodiment

[0037] The following will Figures 1-4 further describe the present application in detail.

[0038] An embodiment of the present application discloses a plug-in type bottom plate side milling tooling.

[0039] Referring to Figure 1 , a plug-in type bottom plate side milling tooling includes a base 1 for supporting the product, and the base 1 is correspondingly provided with positioning grooves 11 for each part bottom protrusion on the product. A plurality of limit plates 2 are evenly arranged on both side walls of the base 1 perpendicular to the length direction of the positioning groove 11. In this embodiment, two limit plates 2 are taken as an example on each side wall, and each limit plate 2 is slidably arranged towards the base 1. A cover plate 3 is arranged above the base 1, and a driving mechanism 4 is connected between the cover plate 3 and the base 1. A plurality of electric pressing members 5 are evenly distributed on the cover plate 3. An electric control box 6 is fixedly arranged on the side wall of the base 1. In this embodiment, all electrical equipment is controlled and operated by the electric control box 6.

[0040] Refer to Figure 1 , when performing side milling operation, first control the driving mechanism 4 through the electric control box 6 to turn over and open the cover plate 3, then insert the product into the corresponding positioning slot 11, and precisely adjust its position on the base 1 through the limiting plate 2; then, control the driving mechanism 4 again to turn over and press the cover plate 3 against the product. At this time, the electric pressing member 5 further presses the product under the control of the electric control box 6 to ensure its stability. Finally, the side milling operation can be performed on the product.

[0041] Refer to Figure 2 , on the bottom top wall of the base 1 near the limiting plate 2, a three-axis cylinder 21 is fixedly arranged corresponding to each limiting plate 2. The piston shaft and the guide shaft of the three-axis cylinder 21 are fixedly arranged on the corresponding limiting plate 2 and drive the limiting plate 2 to move towards the side wall of the product. During the movement of the limiting plate 2, it pushes the side wall of the product until the side wall of the product abuts against the side wall of the base 1.

[0042] Refer to Figure 3 , the driving mechanism 4 includes a driving cylinder 41, a driving arm 42 and a fixed arm 43. An articulated shaft seat 12 is fixedly arranged at the inner top of the side wall of the base 1 parallel to the length direction of the positioning slot 11. The cylinder body of the driving cylinder 41 is rotatably connected to the articulated shaft seat 12. The main arm of the driving arm 42 is parallel to the length direction of the side wall of the cover plate 3 and is fixedly arranged on the side wall of the cover plate 3. The end of the piston rod of the driving cylinder 41 is hinged to the end of the secondary arm of the driving arm 42. The fixed arm 43 is fixedly arranged on the side top wall of the base 1, and the connection between the fixed arm 43 and the main and secondary arms of the driving arm 42 is rotatably connected through a rotating shaft.

[0043] Refer to Figure 3 , a locking cylinder 7 is fixedly arranged at the bottom of the side wall of the base 1. A locking through hole 421 is formed in the secondary arm of the driving arm 42. The locking through hole 421 is in plug-in fit with the piston rod of the locking cylinder 7. When the cover plate 3 is in the open state, the piston rod of the locking cylinder 7 extends and is inserted into the locking through hole 421.

[0044] Refer to Figure 4 , a limiting cylinder 8 is fixedly arranged on the side wall of the base 1 near one side of the end of the driving arm 42 far from the rotating shaft. The piston rod of the limiting cylinder 8 extends upward towards the end of the driving arm 42. A limiting block 81 is fixedly arranged at the end of the piston rod of the limiting cylinder 8. When the cover plate 3 is in the closed state, the piston rod of the limiting cylinder 8 extends, so that the limiting block 81 presses the end of the driving arm 42 against the fixed seat

[0045] Refer to Figure 4, the electric pressing member 5 includes a voltage cylinder 51 and a pressing plate 52. The cylinder body of the voltage cylinder 51 is fixedly arranged on the cover plate 3. The pressing plate 52 is arranged on the side of the cover plate 3 facing the product at the bottom. The end of the piston rod of the voltage cylinder 51 slidably penetrates through the cover plate 3 and is fixedly connected to the pressing plate 52. On the cover plate 3 parallel to the telescopic direction of the piston rod of the voltage cylinder 51, a guide rod 13 is also slidably penetrated on one side of the voltage cylinder 51. The guide rod 13 is fixedly arranged on the pressing plate 52. A rubber pad 521 is fixedly arranged on the side wall of the pressing plate 52 facing the product.

[0046] Referring to Figure 1 and Figure 4 , in order to improve the stability of the product during the milling process, a plurality of electric push cylinders 9 are arranged on the side wall of the base 1 near the side milling area of the product. In this embodiment, two are taken as an example. The piston rod of each electric push cylinder 9 extends towards the side wall of the product, and an avoidance opening 422 for the piston rod of the electric push cylinder 9 to expand and contract is formed on the bottom wall of the driving arm 42. When the product is side-milled, the end of the piston rod of each electric push cylinder 9 abuts against the side wall of the product. And in order to timely clean the debris generated during the processing, a chip dropping channel 14 is fixedly arranged on the base 1 corresponding to the side milling area of the product.

[0047] The implementation principle of the plug-in bottom plate side milling tooling in the embodiment of the present application is as follows: By comprehensively applying the flip-type cover plate 3, the electric pressing member 5, the precise positioning structure and the debris cleaning channel, the efficient, stable and precise side milling processing of the plug-in bottom plate is realized. This not only simplifies the operation process, improves the processing accuracy, but also enhances the safety and practicability of the tooling, providing strong technical support for the mass production of the plug-in bottom plate.

[0048] The above are all the preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A plug-in type bottom plate side milling tooling, characterized in that It includes a base (1) for supporting the product. Above the base (1), a cover plate (3) is provided, and a driving mechanism (4) for flipping the cover plate (3) is connected between the cover plate (3) and the base (1). The driving mechanism (4) includes a driving cylinder (41), a driving arm (42) hinged to the piston rod of the driving cylinder (41), and a fixed arm (43) rotatably engaged with the driving arm (42). Inside the top of the side wall of the base (1) parallel to the length direction of the positioning groove (11), a hinge shaft seat (12) is fixedly provided. The cylinder body of the driving cylinder (41) is rotatably connected to the hinge shaft seat (12), and the end of its piston rod is hinged to the end of the secondary arm of the driving arm (42). The primary arm of the driving arm (42) is parallel to the length direction of the side wall of the cover plate (3) and is fixedly provided on the side wall of the cover plate (3). The fixed arm (43) is fixedly provided on the side top wall of the base (1), and the connection between the primary and secondary arms of the fixed arm (43) and the driving arm (42) is rotatably connected through a rotating shaft. An electric control box (6) is provided on the side wall of the base (1), and a plurality of electric pressing members (5) for pressing the product are provided on the cover plate (3). The plurality of electric pressing members (5) are electrically connected to the electric control box (6) and are evenly distributed on the cover plate (3).

2. The plug-in type bottom plate side milling tooling according to claim 1, characterized in that, At the bottom of the side wall of the base (1), a locking cylinder (7) electrically connected to the electric control box (6) is provided. A locking through hole (421) for plugging and matching with the piston rod of the locking cylinder (7) is provided on the secondary arm of the driving arm (42). When the cover plate (3) is in the open state, the piston rod of the locking cylinder (7) extends and is plugged into the locking through hole (421).

3. The side milling tooling for the plug-in type bottom plate according to claim 1, wherein On the side wall of the base (1) near one side of the end of the driving arm (42) far from the rotating shaft, a limiting cylinder (8) is provided. The piston rod of the limiting cylinder (8) extends upward toward the end of the driving arm (42), and a limiting block (81) is provided at the end of the piston rod of the limiting cylinder (8). After the cover plate (3) is in the closed state, the piston rod of the limiting cylinder (8) extends, and the limiting block (81) presses the driving arm (42) against the fixed seat.

4. The plug-in type bottom plate side milling tooling according to claim 1, characterized in that, On the side wall of the base (1) near the side milling area of the product, a plurality of electric push cylinders (9) are provided. The piston rod of each electric push cylinder (9) extends toward the side wall of the product. When side milling of the product is performed, the end of the piston rod of each electric push cylinder (9) abuts against the side wall of the product.

5. The side milling tooling for the plug-in type bottom plate according to claim 1, characterized in that, The base (1) is provided with a positioning groove (11) corresponding to each bottom protrusion of the parts on the product, and a plurality of limiting plates (2) are evenly arranged on both side walls of the base (1) perpendicular to the length direction of the positioning groove (11). A three-axis cylinder (21) is fixedly arranged on the bottom top wall of the base (1) close to the limiting plate (2) corresponding to each limiting plate (2). The piston shaft and the guide shaft of the three-axis cylinder (21) are both connected to the corresponding limiting plate (2), and drive the limiting plate (2) to move towards the side wall of the product, and the limiting plate (2) pushes the side wall of the product during the movement until the side wall of the product abuts against the side wall of the base (1).

6. The side milling tooling for the plug-in type bottom plate according to claim 1, wherein, The electric pressing member (5) includes a voltage cylinder (51) arranged on the top of the cover plate (3) and a pressing plate (52) arranged on the bottom of the cover plate (3) for pressing the product. The cylinder body of the voltage cylinder (51) is fixedly arranged on the cover plate (3), and its piston rod slides through the cover plate (3) and is connected to the pressing plate (52).

7. The plug-in type bottom plate side milling tooling according to claim 6, characterized in that, A guide rod (13) parallel to the telescopic direction of the piston rod of the voltage cylinder (51) is arranged on the top of each pressing plate (52) facing away from the product, and the guide rod (13) slides through the cover plate (3).

8. The plug-in type bottom plate side milling tooling according to claim 6, characterized in that, A rubber pad (521) is arranged on the side wall of each pressing plate (52) facing the product.

9. The plug-in type bottom plate side milling tooling according to claim 1, characterized in that A chip dropping channel (14) is arranged on the base (1) corresponding to the side milling of the product.

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