Clamping and fixing assembly of four-axis numerical control lathe

Abstract

The utility model relates to the technical field of numerical control lathes, in particular to a clamping and fixing assembly of a four-axis numerical control lathe, which comprises a mounting seat, the numerical control lathe is provided with a base, the rear end of the mounting seat is sleeved on the base, the front end of the mounting seat is provided with a plurality of electric push rods, and the left side and the right side in the mounting seat are connected with limiting plates. The limiting plate is in limiting fit with the base, a two-way screw is rotationally connected into the mounting base, the top of the two-way screw is connected with an outer hexagon nut, the upper end and the lower end of the two-way screw are both in threaded connection with clamping plates, clamping grooves matched with the clamping plates are formed in the front end of the base, and an auxiliary assembly used for assisting in clamping is arranged at the front end of the base. Through cooperation of the outer hexagon nut and the two-way screw rod, the clamping plate and the extrusion block can synchronously slide towards the middle or the two sides, the defect that a plurality of screws need to be screwed in a traditional clamping assembly is effectively overcome, and therefore rapid clamping and disassembling are achieved, and the purpose of improving the operation efficiency is finally achieved.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, and in particular to a clamping and fixing component for a four-axis CNC lathe. Background Technology

[0002] CNC lathes are high-precision, high-efficiency automated machine tools widely used in the machinery manufacturing industry. They achieve precise machining of workpieces through a computer control system, enabling the completion of complex cutting tasks. In a CNC lathe, the spindle is the core component for workpiece rotation and machining, while the clamping and fixing assembly is crucial for ensuring the workpiece's stable fixation during machining. The design of the clamping and fixing assembly directly affects machining accuracy, efficiency, and ease of operation; therefore, its performance optimization has always been an important direction in the development of CNC lathe technology.

[0003] Existing clamping and fixing assemblies typically consist of multiple components, including a clamping body, clamping blocks, and locating pins. These components are assembled together in a multi-layered manner and secured with screws. For example, the clamping body is connected to the lathe spindle by screws, the clamping blocks are fixed to the clamping body by screws, and the locating pins are used to ensure accurate positioning of the workpiece.

[0004] While this design can meet basic clamping requirements, it has certain limitations in practical use. First, the assembly and disassembly process requires tightening multiple screws, which is cumbersome and time-consuming. Second, replacing different clamping components requires readjusting and tightening the screws, further increasing the complexity and time cost of operation. Utility Model Content

[0005] To overcome the drawbacks of cumbersome and time-consuming operation, this utility model provides a clamping and fixing component for a four-axis CNC lathe, aiming to solve the above-mentioned shortcomings.

[0006] A clamping and fixing assembly for a four-axis CNC lathe includes a mounting base. The CNC lathe has a base, and the rear end of the mounting base is sleeved on the base. The front end of the mounting base has several electric push rods. Limiting plates are connected to both the left and right sides of the mounting base, and the limiting plates are in a limiting fit with the base. A bidirectional screw is rotatably connected inside the mounting base, and an external hexagonal nut is connected to the top of the bidirectional screw. Clamping plates are threaded to both the upper and lower ends of the bidirectional screw. The front end of the base has a slot that matches the clamping plates. An auxiliary assembly for assisting clamping is provided at the front end of the base.

[0007] More preferably, the auxiliary component includes a ring, a fixed seat is connected to the front end of the base, the ring is rotatably connected to the front side of the fixed seat, and extrusion blocks are threaded to both the upper and lower ends of the bidirectional screw, with the extrusion blocks slidably connected to the ring.

[0008] More preferably, rubber pads are connected to the opposite sides of both clamps.

[0009] More preferably, the external hexagonal nut has an internal hexagonal groove at its top.

[0010] More preferably, the mounting base is equipped with operating levers on both the left and right sides.

[0011] More preferably, a baffle is connected inside the mounting base, and the bidirectional screw is located between the baffle and the fixing base.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. By using the external hexagonal nut and the double-ended screw, the clamping plate and the extrusion block can slide synchronously to the middle or both sides, which effectively solves the problem that traditional clamping components require multiple screws, thereby achieving quick clamping and disassembly, and ultimately improving operating efficiency.

[0014] 2. By cooperating with the clamping plate and the base slot, and by fitting the extrusion block with the ring, a stable connection is formed between the mounting base and the base, effectively solving the shortcomings of traditional clamping components such as complex structure and insufficient stability, thereby achieving high-precision machining and ultimately improving machining quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a partial structural cross-sectional view of the bidirectional screw and external hexagonal nut of this utility model.

[0017] Figure 3 This is a partial structural cross-sectional view of the auxiliary component of this utility model.

[0018] The meanings of the reference numerals in the figure are as follows: 1. Base, 2. Mounting seat, 3. Electric actuator, 4. Limiting plate, 5. Double-acting screw, 6. Hexagonal nut, 7. Clamping plate, 71. Slot, 8. Auxiliary component, 81. Fixing seat, 82. Ring, 83. Extrusion block, 9. Rubber pad, 10. Internal hexagonal slot, 11. Operating lever, 12. Baffle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example: A clamping and fixing assembly for a four-axis CNC lathe, such as... Figures 1-3 As shown, the CNC lathe includes a base 1, a mounting base 2, electric actuators 3, a limiting plate 4, a double-acting screw 5, an external hexagonal nut 6, a clamping plate 7, and auxiliary components 8. The CNC lathe is equipped with a base 1, and the rear end of the mounting base 2 is sleeved on the base 1. Four electric actuators 3 are provided at the front end of the mounting base 2. The workpiece is clamped by the electric actuators 3 and fixed to the front end of the mounting base 2. Limiting plates 4 are connected to both the left and right sides of the mounting base 2. The limiting plates 4 are in a limiting fit with the base 1. A double-acting screw 5 is rotatably connected inside the mounting base 2. An external hexagonal nut 6 is connected to the top of the double-acting screw 5. The upper and lower ends of the double-acting screw 5 are threaded with clamping plates 7. The front end of the base 1 has a slot 71 that matches the clamping plate 7. The front end of the base 1 is provided with auxiliary components 8 for assisting clamping. The worker places the mounting base 2 onto the base 1 and tightens the external hex nut 6 using a tool. The external hex nut 6 drives the double-ended screw 5 to rotate. The rotation of the double-ended screw 5 drives the clamping plates 7 at both ends to slide towards the middle. By rotating the mounting base 2, the position of the clamping plates 7 is adjusted so that they slide into the slot 71 at the front end of the base 1, completing the clamping. The four electric actuators 3 are activated to clamp the workpiece to be processed. When the base 1 drives the mounting base 2 to rotate, the clamping plates 7 engage with the slots 71. The function of the limiting plate 4 is to prevent the double-ended screw 5 from contacting the base 1 and avoiding damage.

[0021] like Figure 2 and Figure 3 As shown, the auxiliary component 8 includes a fixed base 81, a ring 82, and a pressing block 83. The fixed base 81 is connected to the front end of the base 1, and the ring 82 is rotatably connected to the front side of the fixed base 81. The pressing blocks 83 are threaded to both the upper and lower ends of the bidirectional screw 5, and the pressing blocks 83 are pressed into the ring 82. When the bidirectional screw 5 rotates, the pressing block 83 slides along the ring 82, and its groove fits against the outer ring of the ring 82, forming a stable clamping fit. This design allows the pressing block 83 to move smoothly under the drive of the bidirectional screw 5, ensuring the stability of the clamping and reducing frictional loss.

[0022] like Figure 2 As shown, it also includes rubber pads 9, with rubber pads 9 connected to the opposite sides of the two clamping plates 7. When the clamping plates 7 slide towards the middle and clamp the base 1, the rubber pads 9 contact the slots 71 of the base 1, increasing friction and enhancing the connection effect. At the same time, the elastic properties of the rubber pads 9 can absorb some vibration, improving processing accuracy and stability.

[0023] like Figure 2As shown, the external hexagonal nut 6 has an internal hexagonal slot 10 on its top. The design of the external hexagonal nut 6 allows operators to tighten the outer ring with a wrench or operate it by inserting a tool into the internal hexagonal slot 10. This dual design improves the convenience of operation and is suitable for clamping needs in different scenarios. When the external hexagonal nut 6 is tightened, the bidirectional screw 5 rotates accordingly, driving the clamping plate 7 and the pressing block 83 to move, achieving quick clamping or disassembly.

[0024] like Figure 2 As shown, it also includes an operating lever 11, with operating levers 11 connected to both the left and right sides of the mounting base 2. The operating levers 11 facilitate the rotation of the mounting base 2 by the operator. When it is necessary to align the clamping plate 7 with the slot 71 at the front end of the base 1, the operator can easily adjust the position of the mounting base 2 through the operating lever 11 to ensure that the clamping plate 7 is accurately inserted into the slot 71, thereby improving clamping efficiency.

[0025] like Figure 1 As shown, it also includes a baffle 12, which is connected inside the mounting base 2. The bidirectional screw 5 is located between the baffle 12 and the fixed base 81. The main function of the baffle 12 is to block the workpiece and prevent it from contacting the bidirectional screw 5 during clamping, thus avoiding damage to the screw or affecting the machining accuracy. The presence of the baffle 12 ensures the safety and stability of the machining process.

[0026] The worker places the mounting base 2 onto the base 1 and tightens the external hex nut 6 using a tool. The external hex nut 6 can be tightened by turning the outer ring with a wrench or by inserting a tool into the internal hex slot 10. The external hex nut 6 drives the double-acting screw 5 to rotate, which in turn drives the threaded clamping plate 7 and the pressing block 83 to slide towards the center. At the same time, the mounting base 2 is rotated so that the clamping plate 7 is engaged in the slot 71 at the front end of the base 1, and the groove of the pressing block 83 fits into the ring 82, completing the fixed connection between the mounting base 2 and the base 1. The four electric push rods 3 extend and clamp the workpiece to be processed. When the base 1 drives the mounting base 2 to rotate, the clamping plate 7 engages with the slot 71, and the pressing block 83 is engaged in the ring 82 to prevent the mounting base 2 from falling off. The limiting plate 4 prevents the double-acting screw 5 from contacting the base 1 to avoid damage. The rubber pad 9 increases the stability of the connection. The operating rod 11 facilitates the rotation of the mounting base 2 to align with the slot 71. The baffle 12 blocks the workpiece to prevent it from contacting the double-acting screw 5.

[0027] During disassembly, loosening the external hex nut 6 causes the double-ended screw 5 to rotate, driving the clamping plate 7 and the pressing block 83 to move to both sides, thus disconnecting the mounting base 2 from the base 1. The entire process is simple to operate, with high clamping and disassembly efficiency and strong stability.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that variations may be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping and fixing assembly for a four-axis CNC lathe, characterized in that: The CNC lathe includes a mounting base (2) and a base (1). The rear end of the mounting base (2) is fitted onto the base (1). The front end of the mounting base (2) is provided with several electric push rods (3). Limiting plates (4) are connected to both the left and right sides of the mounting base (2). The limiting plates (4) are in a limiting fit with the base (1). A bidirectional screw (5) is rotatably connected inside the mounting base (2). An external hexagonal nut (6) is connected to the top of the bidirectional screw (5). Clamping plates (7) are threaded to both the upper and lower ends of the bidirectional screw (5). A slot (71) is opened at the front end of the base (1) to cooperate with the clamping plate (7). An auxiliary component (8) for assisting clamping is provided at the front end of the base (1).

2. The clamping and fixing assembly for a four-axis CNC lathe according to claim 1, characterized in that: The auxiliary component (8) includes a ring (82), a fixed seat (81) is connected to the front end of the base (1), the ring (82) is rotatably connected to the front side of the fixed seat (81), and the extrusion block (83) is threaded to both the upper and lower ends of the bidirectional screw (5), and the extrusion block (83) is slidably connected to the ring (82).

3. The clamping and fixing assembly for a four-axis CNC lathe according to claim 1, characterized in that: Both of the clamps (7) have rubber pads (9) connected to opposite sides.

4. The clamping and fixing assembly for a four-axis CNC lathe according to claim 1, characterized in that: The external hexagonal nut (6) has an internal hexagonal groove (10) on its top.

5. A clamping and fixing assembly for a four-axis CNC lathe according to claim 1, characterized in that: The mounting base (2) has operating levers (11) connected to both the left and right sides.

6. A clamping and fixing assembly for a four-axis CNC lathe according to claim 2, characterized in that: The mounting base (2) is connected to a baffle (12), and the bidirectional screw (5) is located between the baffle (12) and the fixing base (81).

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