Locking device of high-precision four-axis machining center

Abstract

The utility model discloses a locking device of a high-precision four-axis machining center, which relates to the technical field of machining, and comprises a mounting base, the top of the mounting base is fixedly connected with a locking mechanism, the surface of the locking mechanism is provided with a driving mechanism, the driving mechanism comprises a screw rod, one end of the screw rod is rotatably connected with a rotating piece, and the other end of the screw rod is connected with a rotating shaft. And the surface of the screw rod is sleeved with a mounting piece, the surface of the mounting piece is fixedly connected with a second sliding rail, and the surface of the second sliding rail is slidably connected with a pressing block. Through the arrangement of the driving mechanism, when a high-precision four-axis machining center machining workpiece is locked, the pressing block moves upwards along the second sliding rail, the screw rod can be directly pushed to move, the locking clamping plate and the high-precision four-axis machining center machining workpiece are preliminarily clamped, then the pressing block is put down, and the high-precision four-axis machining center machining workpiece can be locked by rotating the screw rod. Compared with a conventional fixing mode, the thread feeding distance required by the secondary locking device for the machining workpiece of the high-precision four-axis machining center is shorter.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a locking device for a high-precision four-axis machining center. Background Technology

[0002] A CNC machining center is a high-efficiency automated machine tool composed of mechanical equipment and a CNC system, suitable for processing complex parts. Among them, a four-axis machining center refers to a machine tool that can adjust the workpiece at four angles. Its working efficiency is higher than that of ordinary machining tools. When machining a workpiece, the four-axis machining center needs to fix and lock it to ensure its stability during the machining process.

[0003] When locking workpieces, existing machining centers often use bolts and clamping blocks to lock the workpieces to the machining table surface. However, this method requires continuous rotation of the bolts until the clamping block is in close contact with the workpiece. When the workpiece is small, the bolts need to be rotated a long distance, resulting in low locking efficiency and some inconvenience. Utility Model Content

[0004] This invention provides a locking device for a high-precision four-axis machining center to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A locking device for a high-precision four-axis machining center includes a mounting base. A locking mechanism is fixedly connected to the top of the mounting base. A driving mechanism is provided on the surface of the locking mechanism. The driving mechanism includes a screw. A rotating component is rotatably connected to one end of the screw. A mounting component is sleeved on the surface of the screw. A second slide rail is fixedly connected to the surface of the mounting component. A pressure block is slidably connected to the surface of the second slide rail. The bottom of the pressure block is provided with a thread that meshes with the surface of the screw. A limit hook is rotatably connected to the surface of the pressure block.

[0007] A further improvement of the present invention is that the mounting base includes a mounting plate mounted on the surface of the machining table of a high-precision four-axis machining center, a positioning pad is fixedly connected to the surface of the mounting plate, and the top of the positioning pad overlaps the workpiece being processed by the high-precision four-axis machining center.

[0008] A further improvement of the present invention is that the locking mechanism includes a fixing box, the bottom of which is fixedly connected to the surface of the mounting plate, and the inner wall of which is fixedly connected to the surface of the mounting component.

[0009] A further improvement of the present invention is that a first slide rail is fixedly connected to one side of the fixed box, and a sliding block is slidably connected to the surface of the first slide rail.

[0010] A further improvement of this utility model is that: the sliding block is internally bolted with a locking clamp, and a chip removal hole is provided on one side of the fixing box.

[0011] A further improvement of this utility model is that a connecting rod is fixedly connected to one side of the sliding block, and a support rod is rotatably connected to one end of the connecting rod.

[0012] A further improvement of this utility model is that: one end of the support rod is rotatably connected to a drive rod, and the surface of the support rod near the connecting rod end is rotatably connected to one side of the rotating component.

[0013] A further improvement of this utility model is that a fixed rod is rotatably connected to the middle of the drive rod, and one end of the fixed rod is fixedly connected to the inner wall of the fixed box.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] This utility model provides a locking device for a high-precision four-axis machining center. Through the configuration of the drive mechanism, when locking the workpiece processed by the high-precision four-axis machining center, the pressure block is moved upward along the second slide rail, which directly pushes the screw to move, so that the locking clamping plate is initially clamped with the workpiece processed by the high-precision four-axis machining center. Then, the pressure block is lowered, and the workpiece processed by the high-precision four-axis machining center is locked a second time by rotating the screw. Compared with the conventional fixing method, the required thread feed distance is shorter, the overall locking time of the high-precision four-axis machining center workpiece is less, and it is easier to use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of the present invention in the locked state;

[0017] Figure 2 This is a schematic diagram of the structure of this utility model in its idle state;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0019] Figure 4 This is a side view of the disassembled state of this utility model;

[0020] Figure 5 This is a schematic diagram of the drive mechanism structure of this utility model.

[0021] In the diagram: 11. Mounting plate; 12. Positioning pad; 13. Workpiece processed by a high-precision four-axis machining center; 21. Fixing box; 22. Chip removal hole; 23. First slide rail; 24. Sliding block; 25. Locking clamp; 26. Connecting rod; 27. Support rod; 28. Drive rod; 29. ​​Fixing rod; 31. Screw; 32. Rotating component; 33. Mounting component; 34. Second slide rail; 35. Pressure block; 36. Thread; 37. Limit hook. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to embodiments:

[0023] Example 1

[0024] like Figure 1-5 As shown, this utility model provides a locking device for a high-precision four-axis machining center, including a mounting base. A locking mechanism is fixedly connected to the top of the mounting base. A driving mechanism is provided on the surface of the locking mechanism. The driving mechanism includes a screw 31. A rotating member 32 is rotatably connected to one end of the screw 31. A mounting member 33 is sleeved on the surface of the screw 31. A second slide rail 34 is fixedly connected to the surface of the mounting member 33. A pressure block 35 is slidably connected to the surface of the second slide rail 34. A thread 36 that meshes with the surface of the screw 31 is provided at the bottom of the pressure block 35. A limit hook 37 is rotatably connected to the surface of the pressure block 35.

[0025] In this embodiment, when locking the workpiece 13 processed by the high-precision four-axis machining center, it is first placed on the surface of the positioning pad 12. Then, the pressure block 35 is lifted upward along the second slide rail 34, and the screw 31 is pushed to initially fix the workpiece 13 processed by the high-precision four-axis machining center. After the pressure block 35 is lowered along the second slide rail 34, the position of the screw 31 is slightly adjusted so that the thread 36 engages with the thread on the surface of the screw 31. Then, the limiting hook 37 is rotated so that its lower end overlaps with the bottom of the mounting part 33 to limit the position of the pressure block 35. By rotating the screw 31, the workpiece 13 processed by the high-precision four-axis machining center can be locked a second time. Compared with the conventional locking method, the thread feed distance is shorter and the locking speed is faster.

[0026] Example 2

[0027] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the mounting base includes a mounting plate 11 mounted on the surface of the machining table of a high-precision four-axis machining center, a positioning pad 12 is fixedly connected to the surface of the mounting plate 11, the top of the positioning pad 12 overlaps the workpiece 13 of the high-precision four-axis machining center, and the locking mechanism includes a fixing box 21, the bottom of the fixing box 21 is fixedly connected to the surface of the mounting plate 11, and the inner wall of the fixing box 21 is fixedly connected to the surface of the mounting component 33.

[0028] In this embodiment, by causing the rotating member 32 to move the connecting rod 26, the connecting rod 26 causes the sliding block 24 to slide along the first slide rail 23, thereby making the locking clamp 25 contact the surface of the workpiece 13 processed by the high-precision four-axis machining center.

[0029] Example 3

[0030] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, a first slide rail 23 is fixedly connected to one side of the fixed box 21, a sliding block 24 is slidably connected to the surface of the first slide rail 23, a locking clamp 25 is bolted to the inside of the sliding block 24, a chip removal hole 22 is opened on one side of the fixed box 21, a connecting rod 26 is fixedly connected to one side of the sliding block 24, a support rod 27 is rotatably connected to one end of the connecting rod 26, a drive rod 28 is rotatably connected to one end of the support rod 27, the surface of the support rod 27 near the end of the connecting rod 26 is rotatably connected to one side of the rotating part 32, a fixed rod 29 is rotatably connected to the middle of the drive rod 28, and one end of the fixed rod 29 is fixedly connected to the inner wall of the fixed box 21.

[0031] In this embodiment, as the connecting rod 26 moves, it simultaneously drives the support rod 27 to rotate, thereby causing the drive rod 28 to rotate around the fixed rod 29. This causes the other support rod 27 to drive the other connecting rod 26 to move, so that the locking clamps 25 on both sides of the workpiece 13 being processed by the high-precision four-axis machining center move synchronously and perform initial clamping.

[0032] The working principle of the locking device of this high-precision four-axis machining center will be explained in detail below.

[0033] like Figure 1-5 As shown, when locking the workpiece 13 processed by the high-precision four-axis machining center, it is first placed on the surface of the positioning pad 12. Then, the pressure block 35 is lifted upward along the second slide rail 34, and the screw 31 is pushed, causing the rotating part 32 to drive the connecting rod 26 to move. The connecting rod 26 drives the sliding block 24 to slide along the first slide rail 23, thereby making the locking clamp 25 contact the surface of the workpiece 13 processed by the high-precision four-axis machining center. At the same time, during the movement of the connecting rod 26, the support rod 27 is driven to rotate, which in turn causes the drive rod 28 to rotate around the fixed rod 29, thereby causing the other support rod 27 to drive the other connecting rod 26 to rotate. The movement of rod 26 causes the locking plates 25 on both sides of the workpiece 13 being machined by the high-precision four-axis machining center to move synchronously, initially clamping it. Then, after the pressure block 35 is lowered along the second slide rail 34, the position of the screw 31 is slightly adjusted so that the thread 36 engages with the thread on the surface of the screw 31. Then, the limit hook 37 is rotated so that its lower end overlaps with the bottom of the mounting part 33, limiting the position of the pressure block 35. Rotating the screw 31 allows for a second locking of the workpiece 13 being machined by the high-precision four-axis machining center. Compared with the conventional locking method, the thread feed distance is shorter and the locking speed is faster.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A locking device for a high-precision four-axis machining center, comprising a mounting base, characterized in that: A locking mechanism is fixedly connected to the top of the mounting base. A driving mechanism is provided on the surface of the locking mechanism. The driving mechanism includes a screw (31). A rotating part (32) is rotatably connected to one end of the screw (31). An installation part (33) is sleeved on the surface of the screw (31). A second slide rail (34) is fixedly connected to the surface of the installation part (33). A pressure block (35) is slidably connected to the surface of the second slide rail (34). A thread (36) that meshes with the surface of the screw (31) is provided at the bottom of the pressure block (35). A limit hook (37) is rotatably connected to the surface of the pressure block (35).

2. The locking device for a high-precision four-axis machining center according to claim 1, characterized in that: The mounting base includes a mounting plate (11) mounted on the surface of the machining table of a high-precision four-axis machining center. A positioning pad (12) is fixedly connected to the surface of the mounting plate (11), and the top of the positioning pad (12) overlaps the workpiece (13) being processed by the high-precision four-axis machining center.

3. The locking device for a high-precision four-axis machining center according to claim 1, characterized in that: The locking mechanism includes a fixing box (21), the bottom of which is fixedly connected to the surface of the mounting plate (11), and the inner wall of which is fixedly connected to the surface of the mounting component (33).

4. The locking device for a high-precision four-axis machining center according to claim 3, characterized in that: A first slide rail (23) is fixedly connected to one side of the fixed box (21), and a sliding block (24) is slidably connected to the surface of the first slide rail (23).

5. The locking device for a high-precision four-axis machining center according to claim 4, characterized in that: The sliding block (24) is internally bolted to a locking clamp (25), and a chip removal hole (22) is provided on one side of the fixing box (21).

6. The locking device for a high-precision four-axis machining center according to claim 5, characterized in that: A connecting rod (26) is fixedly connected to one side of the sliding block (24), and a support rod (27) is rotatably connected to one end of the connecting rod (26).

7. The locking device for a high-precision four-axis machining center according to claim 6, characterized in that: One end of the support rod (27) is rotatably connected to a drive rod (28), and the surface of the support rod (27) near the connecting rod (26) is rotatably connected to one side of the rotating component (32).

8. The locking device for a high-precision four-axis machining center according to claim 7, characterized in that: A fixed rod (29) is rotatably connected to the middle of the drive rod (28), and one end of the fixed rod (29) is fixedly connected to the inner wall of the fixed box (21).

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