Floating supporting device

Abstract

The utility model discloses a floating supporting device, which relates to the technical field of machining, and comprises a workpiece tray, a flexible supporting assembly and a pressing assembly, the workpiece tray is provided with a mounting plate, the mounting plate is provided with a groove plate, and the groove plate is provided with a groove. A first supporting assembly, a second supporting assembly, a third supporting assembly and a fourth supporting assembly are sequentially arranged on the groove plate, the fourth supporting assembly comprises a supporting plate, a limiting block and a spring, the bottom of the supporting plate is fixedly connected with the spring, a wedge sliding block is arranged below one side of the supporting plate, and a positioning block is arranged on the groove plate. According to the clamping device, due to the arrangement of the multiple sets of supporting plates, the wedge sliding blocks, the push rods and the push air cylinders, the clamping device can form large-range supporting force at different point positions of the bottom of a machined part according to the special-shaped state of the machined part, and the clamping degree of the workpiece is greatly improved through the wedge sliding blocks; the use range and the use flexibility of the device are improved, the structure is compact and simple, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of machining, in particular to a floating support device. Background Art

[0002] Machining refers to the process of changing the shape, size or performance of a workpiece through a mechanical device; it can be divided into cutting machining and pressure machining according to the difference in machining methods. In the production process, any process that changes the shape, size, position and properties of the production object to make it a finished product or semi-finished product is called a process; the process can be further divided into processes such as casting, forging, stamping, welding, machining, and assembly;

[0003] There are many energy sources for modern welding, including gas flame, electric arc, laser, electron beam, friction and ultrasonic wave, etc.; through years of development, friction welding technology has developed many classifications of friction welding: friction stud welding, friction surfacing, third-body friction welding, insert friction welding, inertia friction welding, friction stir welding, radial friction welding, linear friction welding and friction stir lap welding, etc.; when a workpiece is undergoing friction stir welding, a support member needs to be arranged at the bottom of the workpiece to provide support and fixation for the bottom of the workpiece.

[0004] The existing support devices for the bottom of workpieces generally use a fixed seat or a profiling block to fit the bottom of the workpiece to provide support, which results in the need to disassemble and replace the profiling block when machining workpieces with large differences in shape, and the steps are cumbersome and not convenient to use. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages that the existing support devices for the bottom of workpieces generally use a fixed seat or a profiling block to fit the bottom of the workpiece to provide support, which results in the need to disassemble and replace the profiling block when machining workpieces with large differences in shape, and the steps are cumbersome and not convenient to use, and a floating support device is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A floating support device includes a workpiece tray, a flexible support component and a pressing component. An installation plate is provided on the workpiece tray, a groove plate is installed on the installation plate, a first support component, a second support component, a third support component and a fourth support component are sequentially arranged on the groove plate. The fourth support component includes a support plate, a limit block and a spring. The bottom of the support plate is fixedly connected with the spring. A wedge slider is arranged below one side of the support plate, and a positioning block is arranged on the groove plate.

[0008] Preferably, a movable cavity is provided inside the slot plate, one side of the movable cavity is connected to a movable slot, the slot plate and the mounting plate form a detachable structure through bolts, and the number of the movable cavities is consistent with the number of the support plates.

[0009] Preferably, the support plate has a "d"-shaped structure, the support plate and the active cavity form an elastic structure through a spring, the outer wall of the maximum volume at the end of the support plate contacts the outer wall of the active cavity, and a wedge surface adapted to the wedge slider is provided on one side of the bottom of the support plate.

[0010] Preferably, a push rod is provided inside the movable groove, and the push rod is connected to the inclined wedge slider by bolts, and a limiting groove is provided at the connection between the push rod and the inclined wedge slider.

[0011] Preferably, a pushing cylinder is installed at the other end of the push rod, and the bottom of the pushing cylinder is fixedly connected to the mounting plate by bolts.

[0012] Preferably, a through hole is provided inside the mounting plate, and the air pipe of the pushing cylinder passes through the through hole and is connected to an external air source device.

[0013] Preferably, the push rod and the slot plate form a movable structure through a movable slot and a pushing cylinder, and the inner wall of the movable slot contacts the outer wall of the push rod and the inclined wedge slider.

[0014] Preferably, a screw hole is provided on the positioning block, a screw is installed inside the screw hole, and the tail of the screw passes through the screw hole and contacts the inner groove of the limiting groove.

[0015] Preferably, a limiting hole is provided inside the positioning block, the opening area of ​​the limiting hole is equal to the maximum volume of the end of the support rod, and the positioning block is fixed to the limiting block by bolts.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. In the utility model, by arranging multiple groups of support plates, inclined wedge sliders, push rods and pushing cylinders, the device can form a wide range of supporting forces at different points on the bottom of the workpiece according to the special-shaped state of the workpiece. The inclined wedge slider greatly improves the clamping degree of the workpiece, which is beneficial to improving the use range and flexibility of the device. The structure is compact and simple and easy to operate.

[0018] 2. In the utility model, through the setting of the spring, when the workpiece is placed on the positioning block, its support plate cooperates with the spring to provide a flexible supporting force for the bottom of the workpiece, which is beneficial to reduce the speed of the workpiece moving downward, avoid the workpiece from colliding with the positioning block, and is beneficial to improving the processing quality of the product.

[0019] 3. In the present utility model, through the provision of a push rod, a wedge block, and a limit groove, the screw passing through the screw hole and contacting the limit groove provides a limiting function for the movement direction and distance of the push rod. After the push rod is pushed by the driving cylinder, the wedge slider on the push rod is smoothly attached to the inclined plane of the support plate, forming an upward pushing force on the support plate, so that the clamping force on the workpiece in the up and down directions is good, which is conducive to improving the product processing quality.

[0020] 4. In the present utility model, through the provision of a mounting plate, a workpiece tray, and a through hole, the air pipe connecting the driving cylinder and the external air source device is hidden between the workpiece tray and the mounting plate through the through hole, avoiding the messy arrangement of the air pipes connected to the external air source device on the mounting plate and affecting the workpiece processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the present utility model;

[0022] Figure 2 is a schematic cross-sectional structure view of the fourth support assembly in the present utility model;

[0023] Figure 3 is a schematic enlarged structure view of part A in the present utility model.

[0024] LEGEND DESCRIPTION:

[0025] 1. Workpiece tray; 2. Flexible support assembly; 3. First support assembly; 4. Second support assembly; 5. Mounting plate; 6. Pressing assembly; 7. Driving cylinder; 8. Positioning block; 9. Third support assembly; 10. Fourth support assembly; 11. Limit block; 12. Groove plate; 13. Spring; 14. Activity cavity; 15. Wedge slider; 16. Through hole; 17. Push rod; 18. Limit groove; 19. Screw hole; 20. Support plate; 21. Activity groove; 22. Limit hole; 23. Screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Refer to Figures 1-3A floating support device includes a workpiece pallet 1, a flexible support assembly 2 and a clamping assembly 6. The workpiece pallet 1 is provided with a mounting plate 5, and a slot plate 12 is installed on the mounting plate 5. The slot plate 12 is provided with a first support assembly 3, a second support assembly 4, a third support assembly 9 and a fourth support assembly 10 in sequence. The fourth support assembly 10 includes a support plate 20, a limit block 11 and a spring 13. The bottom of the support plate 20 is fixedly connected to the spring 13. An inclined wedge slider 15 is arranged at the lower side of the support plate 20, and a positioning block 8 is provided on the slot plate 12.

[0028] By adopting the above technical scheme, through the setting of the support plate 20 and the spring 13, the device can form a wide range of supporting forces at different points on the bottom of the workpiece according to the special-shaped state of the workpiece (that is, the concave and convex positions inside the workpiece), and the clamping degree of the workpiece is greatly improved through the inclined wedge slider 15. Compared with the traditional method of setting a contour block at the bottom of the workpiece to provide fixed support for it, the present structure can be applied to special-shaped workpieces of different specifications, which is beneficial to improving the use range and flexibility of the device, and has a very high effect on the stability of the clamping of the workpiece. The present structure is compact and simple, easy to operate, and through the setting of the spring 13, when the workpiece is placed on the positioning block 8, its support plate 20 cooperates with the spring 13 to provide flexible supporting force for the workpiece, which is beneficial to reducing the speed of the downward movement of the workpiece, avoiding the collision between the workpiece and the positioning block 8, and is beneficial to improving the processing quality of the product.

[0029] Furthermore, an active cavity 14 is provided inside the slot plate 12 , one side of the active cavity 14 is connected to a movable slot 21 , the slot plate 12 and the mounting plate 5 form a detachable structure through bolts, and the number of the active cavities 14 is consistent with the number of the support plates 20 .

[0030] By adopting the above technical solution, the parts inside the slot plate 12 can be replaced by loosening the bolts on the slot plate 12 and the mounting plate 5 .

[0031] Furthermore, the support plate 20 has a "d"-shaped structure, and the support plate 20 and the active cavity 14 form an elastic structure through the spring 13. The outer wall of the maximum volume at the end of the support plate 20 contacts the outer wall of the active cavity 14, and a wedge surface adapted to the wedge slider 15 is provided on one side of the bottom of the support plate 20.

[0032] By adopting the above technical solution, when no workpiece is placed on the support plate 20, the top surface of the maximum volume of the end of the support plate 20 is supported by the spring 13, and is in contact with the bottom of the limit block 11, so that the support plate 20 will not be separated from the movable cavity 14 when the spring 13 accumulates force and recovers, thereby affecting the processing efficiency of subsequent workpieces, and facilitating the placement of the workpiece.

[0033] Furthermore, a push rod 17 is arranged inside the movable slot 21. The push rod 17 is connected to the inclined wedge slider 15 by bolts, and a limiting slot 18 is provided at the connection of the push rod 17 and the inclined wedge slider 15.

[0034] Furthermore, a pushing cylinder 7 is installed at the other end of the push rod 17. The bottom of the pushing cylinder 7 is fixedly connected to the mounting plate 5 by bolts.

[0035] By adopting the above technical solution, by loosening the bolts between the pushing cylinder 7 and the mounting plate 5, the pushing cylinder 7 can be replaced.

[0036] Furthermore, a through hole 16 is provided inside the mounting plate 5. The air pipe of the pushing cylinder 7 passes through the through hole 16 and is connected to an external air source device.

[0037] By adopting the above technical solution, the air pipe connecting the pushing cylinder 7 and the external air source device is hidden between the workpiece tray 1 and the mounting plate 5 through the through hole 16, avoiding the messy arrangement of the external air pipes on the mounting plate 5 after a number of pushing cylinders 7 are installed on the mounting plate 5, which affects the workpiece processing. The control switch of the external air source device is controlled by the PLC panel of the friction welding equipment (PLC full name Programmable Logic Controller is a programmable logic controller).

[0038] Furthermore, the push rod 17 and the groove plate 12 form a moving structure through the movable slot 21 and the pushing cylinder 7. The inner wall of the movable slot 21 is in contact with the outer walls of the push rod 17 and the inclined wedge slider 15.

[0039] By adopting the above technical solution, after the pushing cylinder 7 is connected to the external air source device and enters the working state, it drives the push rod 17 and the inclined wedge slider 15 to move in the movable slot 21, so that the inclined wedge slider 15 can smoothly abut against the inclined wedge surface of the support plate 20, thereby strengthening the force of the support plate 20 to push up the workpiece.

[0040] Furthermore, a threaded hole 19 is provided on the positioning block 8, a screw 23 is installed inside the threaded hole 19, and the tail of the screw 23 passes through the threaded hole 19 and contacts the inner groove of the limiting slot 18.

[0041] By adopting the above technical solution, the screw 23 passing through the threaded hole 19 and contacting the limiting slot 18 can limit the movement direction and movement distance of the push rod 17. When the push rod 17 is pushed by the pushing cylinder 7, it moves in the movable slot 21 along the direction of the limiting slot 18, so that the inclined wedge slider 15 on the push rod 17 is smoothly attached to the inclined wedge surface of the support plate 20, forming a force to push up the support plate 20, resulting in good clamping force on the workpiece up and down, and thus being beneficial to improving the product processing quality.

[0042] Further, a limiting hole 22 is formed inside the positioning block 8. The opening area of the limiting hole 22 is equal to the maximum volume of the end of the support rod. The positioning block 8 and the limiting block 11 are fixed by bolts.

[0043] By adopting the above technical solution, by loosening the connecting bolts between the positioning block 8 and the limiting block 11, it is convenient to replace the support plate 20 in the groove plate 12 according to the shape requirements of the workpiece to be processed, so that it can provide bottom support for workpieces of various shapes, and the operation is convenient.

[0044] Working principle: During use, first install the workpiece tray 1 on the processing table of the friction welding equipment. Then, when no workpiece to be processed is placed on the support plate 20, under the action of the spring 13, the top surface of the maximum volume of the end of the support plate 20 fits against the bottom of the limiting block 11. When the workpiece to be processed is placed on the positioning block 8, the support plates 20 of the first support assembly 3, the second support assembly 4, the third support assembly 9, and the fourth support assembly 10 move downward under the action of the gravity of the workpiece to be processed, and the support plate 20 cooperates with the spring 13 to provide a buffering force for the downward movement of the workpiece to be processed, which is beneficial to offset the collision force between the workpiece to be processed and the positioning block 8. Again, after placing the workpiece to be processed, connect the external air source equipment connected to the pressing assembly 6 and the flexible support assembly 2 (the pressing assembly 6 includes a cylinder, a pressing plate, and a hinge, and the flexible support assembly 2 includes a lifting cylinder and a lifting member. The pressing assembly 6 and the flexible support assembly 2 are existing mature technologies, and their principles will not be elaborated in detail), so that the pressing assembly 6 on the mounting plate 5 works to press the workpiece to be processed, making the bottom of the workpiece to be processed fit tightly against the top of the positioning block 8. Then, connect the external air source equipment connected to the pushing cylinder 7, so that the pushing cylinder 7 drives the push rod 17 and the wedge-shaped slider 15 to move in the movable groove 21, and the wedge-shaped slider 15 moves towards the movable cavity 14, so that the wedge-shaped slider 15 fits against the inclined wedge surface at the bottom of the support plate 20, strengthening the force of the support plate 20 to push upward against the workpiece to be processed. This upward pushing force can offset the downward tension generated during friction welding, making the workpiece to be processed not easily deformed during processing. Finally, after completing the friction welding of the workpiece to be processed, loosen the pressing assembly 6 and the pushing cylinder 7, and the support plate 20 resets under the action of the spring 13, separating the workpiece to be processed from the positioning block 8, which is convenient for the staff to quickly take out the workpiece to be processed, and has high practicability. This structure can effectively prevent the workpiece to be processed from being severely deformed during friction welding, and the structure is compact and simple, and the operation is convenient (it should be noted that the tightness of the cooperation of each component of the present invention is known to those of ordinary skill in the art, and all belong to the parts that can be implemented by those of ordinary skill in the art in the existing technology in a manner known to those of ordinary skill in the art according to needs. For the electrical parts involved in this solution, the specific model specifications need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the art, so it will not be elaborated in detail).

[0045] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A floating support device, comprising a workpiece pallet (1), a flexible support assembly (2) and a clamping assembly (6), characterized in that: The workpiece pallet (1) is provided with a mounting plate (5), the mounting plate (5) is provided with a slot plate (12), the slot plate (12) is provided with a first support assembly (3), a second support assembly (4), a third support assembly (9) and a fourth support assembly (10) in sequence, the fourth support assembly (10) comprises a support plate (20), a limit block (11) and a spring (13), the bottom of the support plate (20) is fixedly connected to the spring (13), a wedge slider (15) is provided at the lower side of the support plate (20), and a positioning block (8) is provided on the slot plate (12).

2. A floating support device according to claim 1, characterized in that: An active cavity (14) is provided inside the slot plate (12), one side of the active cavity (14) is connected to a movable slot (21), the slot plate (12) and the mounting plate (5) form a detachable structure via bolts, and the number of the active cavities (14) is consistent with the number of the support plates (20).

3. A floating support device according to claim 2, characterized in that: The support plate (20) has a "d"-shaped structure. The support plate (20) and the active cavity (14) form an elastic structure via a spring (13). The outer wall of the maximum volume at the end of the support plate (20) contacts the outer wall of the active cavity (14). A wedge surface that matches the wedge slider (15) is provided on one side of the bottom of the support plate (20).

4. A floating support device according to claim 2, characterized in that: A push rod (17) is provided inside the movable groove (21), and the push rod (17) is connected to the inclined wedge slider (15) by bolts. A limiting groove (18) is provided at the connection between the push rod (17) and the inclined wedge slider (15).

5. A floating support device according to claim 4, characterized in that: A pushing cylinder (7) is installed at the other end of the push rod (17), and the bottom of the pushing cylinder (7) is fixedly connected to the mounting plate (5) by bolts.

6. A floating support device according to claim 5, characterized in that: A through hole (16) is provided inside the mounting plate (5), and the air pipe of the pushing cylinder (7) passes through the through hole (16) and is connected to an external air source device.

7. A floating support device according to claim 5, characterized in that: The push rod (17) and the groove plate (12) form a moving structure through a movable groove (21) and a pushing cylinder (7), and the inner wall of the movable groove (21) contacts the outer wall of the push rod (17) and the inclined wedge sliding block (15).

8. A floating support device according to claim 1, characterized in that: The positioning block (8) is provided with a screw hole (19), a screw (23) is installed inside the screw hole (19), and the tail of the screw (23) passes through the screw hole (19) and contacts the inner groove of the limiting groove (18).

9. A floating support device according to claim 1, characterized in that: A limiting hole (22) is provided inside the positioning block (8), the opening area of ​​the limiting hole (22) is equal to the maximum volume of the end of the support rod, and the positioning block (8) and the limiting block (11) are fixed by bolts.

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