Milling machine bracket clamping structure for aerospace part machining

Abstract

The utility model discloses a milling machine bracket clamping structure for processing spaceflight parts, which is applied to the field of processing spaceflight parts, and is characterized in that a clamping rod is separated from a clamping groove by moving a pull block, then a fixing pin is taken down, a clamping head is taken down and replaced, a new clamping head is arranged in a rotating shaft, the fixing pin is inserted, and the clamping head is clamped in the clamping groove. And the clamping rod is clamped with the clamping groove under the action of the spring, the fixing pin is fixed, and replacement is completed, so that the purpose of replacing the clamping head is achieved, the machining cost is reduced, and the practicability is improved. The worm drives the worm gear to rotate by rotating the rotating head, the worm gear rotates to enable the telescopic rod to drive the rotating rod to rotate, the first gear drives the second gear to rotate, the second gear rotates to drive the rotating shaft, the rotating shaft rotates to enable the clamping head to drive a workpiece to rotate, the workpiece does not need to be assembled and disassembled for adjustment, and therefore the purpose of rotating the workpiece is achieved. And the workload is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerospace component processing, and in particular to a milling machine bracket clamping structure for aerospace component processing. Background Technology

[0002] Currently, Chinese utility model patent CN216371220U discloses a workpiece clamping device for CNC milling machines, belonging to the field of workpiece clamping devices. It includes a CNC milling machine body with multiple symmetrical insertion holes on both sides of the upper surface of the body. One insertion hole contains a insertion block with a threaded hole. A screw is threaded into the threaded hole, and a clamping block is fixed to one end of the screw. A clamping structure is symmetrically arranged on the CNC milling machine body, comprising two fixed rods and two rotating rods. The bottom ends of the fixed rods are fixed to the upper surface of the CNC milling machine body. The rotating rods are rotatably mounted on the upper surface of the CNC milling machine body via a rotating shaft. An annular hole is formed along the length of each rotating rod, and a positioning rod is welded to one end of each rotating rod, with a positioning block fixed to one side of the positioning rod. This utility model features a novel design and ingenious structure, capable of clamping the workpiece from all sides. It allows for fine-tuning according to the size of the workpiece, offering strong practicality and ensuring processing stability, making it worthy of promotion.

[0003] Existing clamping structures cannot replace the clamping head. During milling, workpieces of different shapes are encountered, but the clamping head of a typical clamping structure can only clamp one type of workpiece. To clamp different shapes, the entire fixture must be replaced, requiring multiple fixture sets, increasing processing costs, reducing practicality, and making it inconvenient to use. Furthermore, the workpiece cannot be rotated; typical clamping structures only provide clamping and fixing. During processing, different areas of the workpiece need to be machined, requiring adjustment of the workpiece's machining surface. However, with typical clamping structures, adjusting the workpiece's machining surface requires disassembling and reassembling the workpiece, which is cumbersome, increases workload, and reduces processing efficiency. To address these problems, we propose a milling machine bracket clamping structure for aerospace component processing. Utility Model Content

[0004] The purpose of this utility model is to provide a milling machine bracket clamping structure for processing aerospace parts, which has the advantages of being able to replace the clamping head and rotate the workpiece.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a milling machine bracket clamping structure for aerospace component processing, comprising a bracket, a base bolted to the top of the bracket, a clamping mechanism provided on the surface of the base, a fixing plate bolted to the top of the clamping mechanism, a rotating shaft rotatably connected to the surface of the fixing plate, a clamping head slidably sleeved on the inner wall of the rotating shaft, a fixing pin penetrating through the clamping head and the rotating shaft, a locking rod slidably sleeved on the inner wall of the rotating shaft, a limiting plate fixedly sleeved on the surface of the locking rod, a spring provided between the limiting plate and the inner wall of the rotating shaft, and the fixing... The pin has a snap-fit ​​groove on its surface, which snaps into one end of the snap-fit ​​rod. A rotating rod is rotatably sleeved on the surface of the fixed plate on the left side. A telescopic rod is slidably sleeved inside the rotating rod, and the other end of the telescopic rod is rotatably sleeved with the inner wall of the fixed plate on the right side. A worm gear is fixedly sleeved on the surface of the telescopic rod, and a worm is meshed on the surface of the worm gear. A fixed shell is rotatably sleeved on the surfaces of the worm and the worm gear, and the fixed shell is bolted to the surface of the fixed plate. A first gear is fixedly sleeved on the surfaces of both the telescopic rod and the rotating rod. A second gear is meshed on the surface of the first gear, and the second gear is fixedly sleeved on the surface of the rotating shaft.

[0006] By employing the above technical solution, the locking rod is disengaged from the locking slot by moving the pull block. Then, the fixing pin is removed, the clamping head is removed and replaced, and the new clamping head is installed into the rotating shaft. The fixing pin is then inserted, and the locking rod engages with the locking slot under the action of the spring, securing the fixing pin and completing the replacement. This achieves the purpose of replacing the clamping head, reducing processing costs and improving practicality. Rotating the rotating head causes the worm gear to drive the worm wheel, which in turn causes the telescopic rod to drive the rotating rod, which in turn causes the first gear to drive the second gear, which in turn drives the rotating shaft. The rotating shaft then causes the clamping head to rotate the workpiece. This eliminates the need for workpiece disassembly and adjustment, thus achieving the purpose of workpiece rotation, reducing workload, and improving processing efficiency.

[0007] The present invention is further configured such that: the clamping mechanism includes a sliding groove, the sliding groove is formed on the surface of the base, a bidirectional lead screw is rotatably connected to the inner wall of the sliding groove, and the surface of the bidirectional lead screw is rotatably sleeved with the inner wall of the base, a slider is threadedly connected to the surface of the bidirectional lead screw, and the slider is slidably connected to the inner wall of the sliding groove, and the top of the slider is bolted to the bottom of the fixing plate.

[0008] By adopting the above technical solution and setting up a clamping mechanism, it is easy to clamp the workpiece.

[0009] The present invention is further configured such that a rotating head is bolted to one end of the bidirectional lead screw and one end of the worm gear.

[0010] By adopting the above technical solution, the rotating head facilitates the rotation of the bidirectional lead screw and the rotating head.

[0011] The present invention is further configured such that a pull block is bolted to one end of the locking rod.

[0012] By adopting the above technical solution, the locking rod can be easily moved by setting a pull block.

[0013] The present invention is further configured such that one end of the snap-fit ​​rod is wedge-shaped.

[0014] By adopting the above technical solution, one end of the locking rod is wedge-shaped, which facilitates the fixing of the fixing pin.

[0015] The present invention is further configured such that a rubber pad is adhered to the surface of the clamping head.

[0016] By adopting the above technical solution, rubber pads are installed to prevent damage to the workpiece.

[0017] The present invention is further configured such that the surface of the base is printed with scale lines.

[0018] By adopting the above technical solution and setting scale lines, the size can be easily adjusted.

[0019] The present invention is further configured such that mounting holes are provided on the surface of the bracket.

[0020] The above technical solution facilitates installation and fixation by providing mounting holes.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model uses a movable pull block to disengage the locking rod from the locking groove, then removes the fixing pin, removes and replaces the clamping head, inserts the new clamping head into the rotating shaft, inserts the fixing pin, and the locking rod engages with the locking groove under the action of the spring, fixing the fixing pin and completing the replacement, thereby achieving the purpose of replacing the clamping head, reducing processing costs and improving practicality;

[0023] 2. This utility model achieves the purpose of rotating the workpiece by rotating the rotating head, which causes the worm gear to rotate, the worm wheel to rotate, the telescopic rod to rotate, the first gear to rotate, the second gear to rotate, the second gear to rotate, the shaft to rotate, and the clamping head to rotate the workpiece. There is no need to assemble or disassemble the workpiece for adjustment, thereby reducing the workload and improving the processing efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3This is a partial structural side sectional view of the present invention;

[0027] Figure 4 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle.

[0028] Reference numerals in the attached drawings: 1. Bracket; 2. Base; 3. Clamping mechanism; 4. Fixing plate; 5. Rotating shaft; 6. Clamping head; 7. Fixing pin; 8. Snap-fit ​​rod; 9. Limiting plate; 10. Spring; 11. Snap-fit ​​groove; 12. Rotating rod; 13. Telescopic rod; 14. Worm gear; 15. Worm; 16. Fixing shell; 17. Slide groove; 18. Two-way lead screw; 19. Slider; 20. Rotating head; 21. Pull block; 22. Rubber pad; 23. Scale line; 24. Mounting hole; 25. First gear; 26. Second gear. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings.

[0030] Example 1:

[0031] refer to Figure 1 , Figure 2 and Figure 4 A milling machine bracket clamping structure for aerospace component processing includes a bracket 1, a base 2 bolted to the top of the bracket 1, a clamping mechanism 3 provided on the surface of the base 2, a fixing plate 4 bolted to the top of the clamping mechanism 3, a rotating shaft 5 rotatably connected to the surface of the fixing plate 4, a clamping head 6 slidably sleeved on the inner wall of the rotating shaft 5, a fixing pin 7 penetrating through the clamping head 6 and the interior of the rotating shaft 5, a snap-fit ​​rod 8 slidably sleeved on the inner wall of the rotating shaft 5, a limiting plate 9 fixedly sleeved on the surface of the snap-fit ​​rod 8, a spring 10 provided between the limiting plate 9 and the inner wall of the rotating shaft 5, and a snap-fit ​​groove 11 opened on the surface of the fixing pin 7, and the snap-fit ​​groove 11 snaps with one end of the snap-fit ​​rod 8. By moving the pull block 21, the locking rod 8 is disengaged from the locking groove 11. Then, the fixing pin 7 is removed, and the clamping head 6 is removed and replaced. The new clamping head 6 is installed into the rotating shaft 5, and the fixing pin 7 is inserted. Under the action of the spring 10, the locking rod 8 engages with the locking groove 11, and the fixing pin 7 is fixed, thus completing the replacement. This achieves the purpose of replacing the clamping head 6, reducing processing costs and improving practicality.

[0032] refer to Figure 2 The clamping mechanism 3 includes a slide groove 17, which is formed on the surface of the base 2. A bidirectional lead screw 18 is rotatably connected to the inner wall of the slide groove 17, and the surface of the bidirectional lead screw 18 is rotatably sleeved with the inner wall of the base 2. A slider 19 is threadedly connected to the surface of the bidirectional lead screw 18, and the slider 19 is slidably connected to the inner wall of the slide groove 17. The top of the slider 19 is bolted to the bottom of the fixing plate 4. By setting the clamping mechanism 3, it is convenient to clamp the workpiece.

[0033] refer to Figure 2 and Figure 3 A rotating head 20 is bolted to one end of the double-acting lead screw 18 and one end of the worm gear 15. The rotating head 20 facilitates the rotation of the double-acting lead screw 18 and the rotating head 20.

[0034] refer to Figure 4 One end of the locking rod 8 is bolted with a pull block 21, which facilitates the movement of the locking rod 8.

[0035] refer to Figure 4 One end of the locking rod 8 is wedge-shaped, which facilitates the fixing of the fixing pin 7.

[0036] Example 2:

[0037] refer to Figure 1 , Figure 2 and Figure 3 A rotating rod 12 is rotatably sleeved on the surface of the left fixed plate 4. A telescopic rod 13 is slidably sleeved inside the rotating rod 12, and the other end of the telescopic rod 13 is rotatably sleeved with the inner wall of the right fixed plate 4. A worm gear 14 is fixedly sleeved on the surface of the telescopic rod 13. A worm 15 meshes with the surface of the worm gear 14. A fixed shell 16 is rotatably sleeved on the surfaces of the worm 15 and the worm gear 14, and the fixed shell 16 is bolted to the surface of the fixed plate 4. A first gear 25 is fixedly sleeved on the surfaces of both the telescopic rod 13 and the rotating rod 12. A second gear 26 meshes with the surface of the first gear 25, and the second gear 26 is fixedly sleeved on the surface of the rotating shaft 5. By rotating the rotating head 20, the worm gear 15 drives the worm wheel 14 to rotate. The rotation of the worm wheel 14 causes the telescopic rod 13 to drive the rotating rod 12 to rotate, which in turn causes the first gear 25 to drive the second gear 26 to rotate. The rotation of the second gear 26 drives the rotating shaft 5, which in turn causes the clamping head 6 to rotate the workpiece. This eliminates the need to assemble or disassemble the workpiece for adjustment, thereby achieving the purpose of rotating the workpiece, reducing workload, and improving processing efficiency.

[0038] refer to Figure 2 A rubber pad 22 is bonded to the surface of the clamping head 6 to prevent damage to the workpiece.

[0039] refer to Figure 1 The surface of the base 2 is printed with scale lines 23, which facilitates size adjustment.

[0040] refer to Figure 1 The bracket 1 has mounting holes 24 on its surface, which facilitates installation and fixation.

[0041] Brief description of the usage process: Move the pull block 21. The movement of the pull block 21 drives the locking rod 8 to move. The movement of the locking rod 8 disengages from the locking groove 11. Then, remove the fixing pin 7 and replace the clamping head 6. Insert the new clamping head 6 into the rotating shaft 5, insert the fixing pin 7, and the locking rod 8 engages with the locking groove 11 under the action of the spring 10. Fix the fixing pin 7, and the replacement is completed, thus achieving the purpose of replacing the clamping head 6. Rotate the rotating head 20. The rotation of the rotating head 20 drives the worm gear 15 to rotate. The rotation of the worm gear 15 drives the worm wheel 14 to rotate. The rotation of the worm wheel 14 drives the telescopic rod 13 to rotate. The rotation of the telescopic rod 13 drives the rotating rod 12 to rotate. The rotation of the telescopic rod 13 and the rotating rod 12 drives the first gear 25 to rotate. The rotation of the first gear 25 drives the second gear 26 to rotate. The rotation of the second gear 26 drives the rotating shaft 5 to rotate, so that the clamping head 6 drives the workpiece to rotate, thus achieving the purpose of rotating the workpiece.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A milling machine bracket clamping structure for machining aerospace parts, comprising a bracket (1), characterized in that, A base (2) is bolted to the top of the bracket (1). A clamping mechanism (3) is provided on the surface of the base (2). A fixing plate (4) is bolted to the top of the clamping mechanism (3). A rotating shaft (5) is rotatably connected to the surface of the fixing plate (4). A clamping head (6) is slidably sleeved on the inner wall of the rotating shaft (5). A fixing pin (7) is provided through the clamping head (6) and the rotating shaft (5). A snap-fit ​​rod (8) is slidably sleeved on the inner wall of the rotating shaft (5). A limit plate (9) is fixedly sleeved on the surface of the snap-fit ​​rod (8). A spring (10) is provided between the limit plate (9) and the inner wall of the rotating shaft (5). A snap-fit ​​groove (11) is opened on the surface of the fixing pin (7), and the snap-fit ​​groove (11) snaps into one end of the snap-fit ​​rod (8). The pin is located on the left side. A rotating rod (12) is rotatably sleeved on the surface of the fixed plate (4). A telescopic rod (13) is slidably sleeved inside the rotating rod (12), and the other end of the telescopic rod (13) is rotatably sleeved with the inner wall of the right fixed plate (4). A worm gear (14) is fixedly sleeved on the surface of the telescopic rod (13). A worm (15) meshes with the surface of the worm gear (14). A fixed shell (16) is rotatably sleeved on the surface of the worm (15) and the worm gear (14), and the fixed shell (16) is bolted to the surface of the fixed plate (4). A first gear (25) is fixedly sleeved on the surfaces of both the telescopic rod (13) and the rotating rod (12). A second gear (26) meshes with the surface of the first gear (25), and the second gear (26) is fixedly sleeved on the surface of the rotating shaft (5).

2. The clamping structure of a milling machine bracket (1) for machining aerospace parts according to claim 1, characterized in that, The clamping mechanism (3) includes a slide groove (17), which is formed on the surface of the base (2). A bidirectional lead screw (18) is rotatably connected to the inner wall of the slide groove (17), and the surface of the bidirectional lead screw (18) is rotatably sleeved with the inner wall of the base (2). A slider (19) is threadedly connected to the surface of the bidirectional lead screw (18), and the slider (19) is slidably connected to the inner wall of the slide groove (17). The top of the slider (19) is bolted to the bottom of the fixing plate (4).

3. The milling machine bracket clamping structure for aerospace component processing according to claim 2, characterized in that, A rotating head (20) is bolted to one end of the bidirectional lead screw (18) and one end of the worm gear (15).

4. The milling machine bracket clamping structure for aerospace component processing according to claim 1, characterized in that, A pull block (21) is bolted to one end of the locking rod (8).

5. The milling machine bracket clamping structure for aerospace component processing according to claim 1, characterized in that, One end of the snap-fit ​​rod (8) is wedge-shaped.

6. The milling machine bracket clamping structure for aerospace component processing according to claim 1, characterized in that, A rubber pad (22) is adhered to the surface of the clamping head (6).

7. The milling machine bracket clamping structure for aerospace component processing according to claim 1, characterized in that, The base (2) has scale lines (23) printed on its surface.

8. The milling machine bracket clamping structure for aerospace component processing according to claim 1, characterized in that, The bracket (1) has mounting holes (24) on its surface.

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