A CNC machining center clamping mechanism

Abstract

The utility model relates to CNC machining center technical field, and disclose a kind of CNC machining center clamping mechanism, applied to CNC machine tool, the CNC machine tool surface is equipped with workbench, the workbench middle part is equipped with adjusting assembly, adjusting assembly surface is equipped with a set of clamping mechanism in diagonal symmetry;The present application is effectively adjusted to the front and back distance of a set of clamping bracket by adjusting assembly, to adapt to the workpiece of different length limit, rotating toothed handle effectively drives screw to rotate, to drive the height adjustment of movable plate on the surface of screw rod, further make clamping bracket adapt to the board class workpiece of different thickness limit or the cylindrical workpiece of different diameter, effectively drive clamping bracket to move by electric push rod, to adjust the left and right distance of a set of clamping bracket, to adapt to the board class workpiece of different width limit or the cylindrical workpiece of different diameter, the device can effectively realize the clamping limit of multiple kinds of workpieces, improve device practicability.

Description

Technical Field

[0001] This utility model belongs to the technical field of CNC machining centers, specifically a clamping mechanism for CNC machining centers. Background Technology

[0002] CNC machining centers are automated machining equipment that integrates computer numerical control technology, mechanical manufacturing technology, and other fields. They are characterized by high precision, high efficiency, and high flexibility, playing a crucial role in many industries such as aerospace, automotive manufacturing, and electronic equipment. The clamping mechanism is the fundamental link in achieving high-precision and high-efficiency machining in CNC machining centers. The two form a complete process chain through "positioning-clamping-machining collaboration".

[0003] Existing CNC machining centers often use different clamping molds to adapt to workpieces of different shapes. Mold assembly and disassembly are time-consuming and labor-intensive, which increases the cost of mold opening. Therefore, we propose a new clamping mechanism for CNC machining centers. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a clamping mechanism for CNC machining centers, which effectively solves the problem that the existing clamping mechanisms of CNC machining centers often require changing different clamping molds to adapt to and limit workpieces of different shapes. The mold disassembly and assembly are time-consuming and labor-intensive, which also increases the cost of mold opening.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping mechanism for a CNC machining center, applied to a CNC machine tool. The CNC machine tool has a worktable on its surface, an adjustment component in the middle of the worktable, and a set of clamping mechanisms symmetrically arranged diagonally on the surface of the adjustment component. The clamping mechanism includes a fixed slot frame, which is fixedly mounted on the surface of the adjustment component. A screw is vertically mounted inside the fixed slot frame, and a toothed throttle is fixedly connected to the top of the screw. A movable plate is sleeved on the outside of the screw, and a set of electric push rods is symmetrically arranged at the end of the movable plate away from the screw. The movable end of the electric push rod is connected to a clamping frame.

[0006] Preferably, the screw and the movable plate are connected by a thread, and the front and rear sides of the movable plate are always in contact with the inner wall of the fixed slot frame.

[0007] Preferably, the clamp is telescopically connected to the movable plate via an electric push rod, and the clamp forms an asymmetrical spatial shape with three open sides and three closed sides.

[0008] Preferably, the adjustment component includes an inner slide groove, which is located in the middle of the worktable. A positive and negative lead screw is mounted in the middle of the inner slide groove. One end of the positive and negative lead screw is connected to a motor. A positioning frame is provided on the outside of the motor. A set of threaded blocks are symmetrically fitted on the surface of the positive and negative lead screw. A support plate is fixed to the top of the threaded block. Bellows-style protective covers are provided on both sides of the threaded block.

[0009] Preferably, the threaded block and the positive and negative lead screws form a threaded transmission pair, and the linear motion of the threaded block is achieved by the motor driving the positive and negative lead screws to rotate.

[0010] Preferably, the accordion-style protective cover always blocks the open area at the top of the inner slide.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. By setting an adjustment component, the front-to-back distance of a set of clamps can be effectively adjusted to accommodate and limit workpieces of different lengths. Rotating the toothed handle effectively drives the screw to rotate, thereby adjusting the height of the movable plate on the screw surface. This allows the clamps to accommodate and limit sheet metal workpieces of different thicknesses or cylindrical workpieces of different diameters. The electric push rod effectively drives the clamps to move, thereby adjusting the left-to-right distance of a set of clamps to accommodate and limit sheet metal workpieces of different widths or cylindrical workpieces of different diameters. This device can effectively achieve clamping and limiting of various types of workpieces, improving the practicality of the device.

[0013] 2. The motor effectively drives the positive and negative lead screws to rotate, thereby causing a set of threaded blocks on the surface of the positive and negative lead screws to move away from or closer to each other, thus realizing the adjustment of the distance between a set of clamping mechanisms. Since the bellows-type protective cover always blocks the open area at the top of the inner slide groove, it can effectively prevent machining waste from entering the inner slide groove, thus protecting the positive and negative lead screws in the inner slide groove. Attached Figure Description

[0014] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the structure for clamping sheet metal workpieces according to this utility model;

[0017] Figure 2 This is a schematic diagram of the structure for clamping a cylindrical workpiece according to this utility model;

[0018] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the fixing slot frame of this utility model.

[0020] In the diagram: 1. CNC machine tool; 2. Worktable; 3. Adjustment assembly; 301. Inner slide groove; 302. Positive and negative lead screws; 303. Motor; 304. Positioning frame; 305. Threaded block; 306. Support plate; 307. Bellows-style protective cover; 4. Clamping mechanism; 401. Fixed slot frame; 402. Screw; 403. Toothed throttle; 404. Movable plate; 405. Electric push rod; 406. Clamping frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 A clamping mechanism for a CNC machining center is applied to a CNC machine tool 1. The CNC machine tool 1 has a worktable 2 on its surface, and an adjustment assembly 3 in the middle of the worktable 2. A set of clamping mechanisms 4 are symmetrically arranged diagonally on the surface of the adjustment assembly 3. The clamping mechanism 4 includes a fixed slot frame 401, which is fixed to the surface of the adjustment assembly 3. A screw 402 is vertically mounted inside the fixed slot frame 401, and a toothed throttle 403 is fixedly connected to the top of the screw 402. A movable plate 404 is sleeved on the outside of the screw 402. The screw 402 and the movable plate 404 are threaded together. The front and back of the movable plate 404 are always in contact with the inner wall of the fixed slot frame 401. A set of electric push rods 405 are symmetrically arranged at the end of the movable plate 404 away from the screw 402. A clamping bracket 406 is connected to the movable end of the electric push rod 405. Further, the clamping bracket... The clamp 406 forms a telescopic structure with the electric push rod 405 and the movable plate 404. The clamp 406 forms an asymmetrical spatial shape with three open sides and three closed sides. The front-to-back distance of a set of clamps 406 can be effectively adjusted by the adjustment component 3 to accommodate and limit workpieces of different lengths. Rotating the toothed handle 403 effectively drives the screw 402 to rotate, thereby driving the movable plate 404 on the surface of the screw 402 to adjust its height. This allows the clamp 406 to accommodate and limit plate workpieces of different thicknesses or cylindrical workpieces of different diameters. The electric push rod 405 effectively drives the clamp 406 to move, thereby adjusting the left-to-right distance of a set of clamps 406 to accommodate and limit plate workpieces of different widths or cylindrical workpieces of different diameters. This device can effectively realize the clamping and limiting of various types of workpieces, improving the practicality of the device.

[0023] Adjustment component 3 includes an inner slide groove 301, which is located in the middle of the worktable 2. A forward and reverse lead screw 302 is mounted in the middle of the inner slide groove 301. One end of the forward and reverse lead screw 302 is connected to a motor 303. A positioning bracket 304 is provided on the outside of the motor 303. A set of threaded blocks 305 are symmetrically fitted on the surface of the forward and reverse lead screw 302. The threaded blocks 305 and the forward and reverse lead screw 302 form a threaded transmission pair. The motor 303 drives the forward and reverse lead screw 302 to rotate, achieving linear motion of the threaded blocks 305. A support plate 306 is fixed to the top of the threaded blocks 305. Supports are provided on both sides of the threaded blocks 305. Furthermore, the accordion-style protective cover 307 always blocks the open area at the top of the inner slide groove 301. The motor 303 effectively drives the positive and negative lead screws 302 to rotate, thereby causing a set of threaded blocks 305 on the surface of the positive and negative lead screws 302 to move away from or closer to each other, thereby adjusting the distance between a set of clamping mechanisms 4. Since the accordion-style protective cover 307 always blocks the open area at the top of the inner slide groove 301, it can effectively prevent machining waste from entering the inner slide groove 301, thus protecting the positive and negative lead screws 302 in the inner slide groove 301.

Claims

1. A clamping mechanism for a CNC machining center, characterized in that: The invention is applied to a CNC machine tool (1). The CNC machine tool (1) has a worktable (2) on its surface. An adjustment component (3) is provided in the middle of the worktable (2). A set of clamping mechanisms (4) is provided diagonally symmetrically on the surface of the adjustment component (3). The clamping mechanism (4) includes a fixed slot frame (401). The fixed slot frame (401) is fixed on the surface of the adjustment component (3). A screw (402) is vertically mounted inside the fixed slot frame (401). A toothed throttle (403) is fixedly connected to the top of the screw (402). A movable plate (404) is sleeved on the outside of the screw (402). A set of electric push rods (405) is symmetrically provided at the end of the movable plate (404) away from the screw (402). A clamp (406) is connected to the movable end of the electric push rod (405).

2. The CNC machining center clamping mechanism according to claim 1, characterized in that: The screw (402) and the movable plate (404) are connected by threads, and the front and back of the movable plate (404) are always in contact with the inner wall of the fixed slot (401).

3. The clamping mechanism for a CNC machining center according to claim 1, characterized in that: The clamp (406) forms a telescopic structure with the movable plate (404) via an electric push rod (405), and the clamp (406) forms an asymmetrical spatial shape with three sides open and three sides closed.

4. The clamping mechanism for a CNC machining center according to claim 1, characterized in that: The adjustment component (3) includes an inner slide groove (301), which is located in the middle of the workbench (2). A positive and negative lead screw (302) is mounted in the middle of the inner slide groove (301). A motor (303) is connected to one end of the positive and negative lead screw (302). A positioning frame (304) is provided on the outside of the motor (303). A set of threaded blocks (305) are symmetrically fitted on the surface of the positive and negative lead screw (302). A support plate (306) is fixed to the top of the threaded block (305). Bellows-style protective covers (307) are provided on both sides of the threaded block (305).

5. A CNC machining center clamping mechanism according to claim 4, characterized in that: The threaded block (305) and the positive and negative lead screws (302) form a threaded transmission pair. The linear motion of the threaded block (305) is achieved by the motor (303) driving the positive and negative lead screws (302) to rotate.

6. The CNC machining center clamping mechanism according to claim 4, characterized in that: The bellows-style protective cover (307) always covers the open area at the top of the inner slide (301).

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