Device capable of adjusting center height for four-axis machining of heavy metal parts
By designing an adjustment center height device that combines a movable block, screw, and bearing, the problem of insufficient rotary table displacement in a four-axis CNC milling machine was solved, enabling precise machining of heavy metal parts, reducing costs, and improving safety.
Patent Information
- Application Number
- CN202423088980.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-15
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-15
AI Technical Summary
When machining heavy metal parts, the vertical displacement distance of the turntable on a four-axis CNC milling machine is limited, which cannot meet the machining height requirements and affects the machining effect.
Design a device for adjusting the center height of heavy metal parts. Through a combination structure of movable block, screw and bearing, the screw lifts the movable block to change its position, thereby adjusting the center height of the metal parts. The bearing bears the weight to reduce friction.
It enables precise adjustment of the center height of heavy metal parts on a four-axis milling machine, improving the comprehensiveness and safety of machining and reducing machining costs.
Smart Images
Figure CN223643228U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mechanical processing technology and relates to a device for adjusting the center height of four-axis machining of heavy metal parts. Background Technology
[0002] Four-axis CNC milling machines are commonly used equipment in the electromechanical field and are essential for machining heavy mechanical parts. The rotary table of a four-axis CNC milling machine is a crucial device for workpiece positioning and load-bearing. Its function is to ensure the workpiece is correctly positioned relative to the machine tool and cutting tools, and to support the workpiece's weight. In actual production processes, four-axis CNC milling machines must bear the weight of the workpiece and move the workpiece and cutting tools according to machining requirements. Some special machining requirements necessitate vertical displacement of the workpiece to coordinate with the cutting tools. However, the vertical displacement distance of the rotary table on a four-axis CNC milling machine is limited during operation, thus failing to reach the required machining height, directly affecting workpiece machining.
[0003] To address the aforementioned issues, a device for adjusting the center height of heavy metal parts on a four-axis milling machine is proposed. This solves the problem that the center height of milled parts on a four-axis milling machine cannot meet the machining requirements, and also addresses the issue that the flexibility of the worktable cannot withstand metal parts exceeding the load. This improves the four-axis milling machine's ability to adjust workpiece height and meet load-bearing requirements. Summary of the Invention
[0004] The technical solution adopted in this utility model is as follows:
[0005] A device for adjusting the center height in four-axis machining of heavy metal parts comprises a base 1, a movable block 2, a screw 3, a nut 4, a right bearing 5, a left bearing 6, a cylindrical pin 7 for positioning the movable block, a cylindrical pin 8 for positioning the left bearing, and a cylindrical pin 9 for positioning the right bearing. The base 1 is a cuboid structure with part of its upper part cut off according to the requirements of the device. A threaded hole is drilled on the outer side where the movable block 2 is installed. Its top is composed of an arc surface and a bevel, used to install the corresponding structures of the movable block 2, the screw 3, the right bearing 5, the left bearing 6, the cylindrical pin 7 for positioning the movable block, the cylindrical pin 8 for positioning the left bearing, and the cylindrical pin 9 for positioning the right bearing.
[0006] The movable block 2 is a thickened rib structure, which is connected to the base 1 by a cylindrical pin. The movable block 2 has a circular through hole in the middle for installing the cylindrical roller left bearing 6. The cylindrical roller left bearing 6 is connected to the movable block 2 by the cylindrical pin. The cylindrical roller right bearing 5 is fixed to the other side of the base 1 by the cylindrical pin 9 that positions the right bearing.
[0007] The tail of the screw 3 is a flat structure. The screw 3 is installed in the threaded hole. By rotating the screw 3, the movable block 2 is lifted. The nut 4 is installed on the contact part between the screw 3 and the outer side of the base 1. The nut 4 is tightly attached to the threaded hole of the base.
[0008] Right bearing 5 and left bearing 6 are two cylindrical roller bearings of different sizes; the cylindrical pin 7 of the positioning block, the cylindrical pin 8 of the positioning left bearing, and the cylindrical pin 9 of the positioning right bearing are cylindrical structures; the cylindrical pin 8 of the positioning left bearing is used to limit and connect the left bearing 6, the cylindrical pin 7 of the positioning block is used to limit and connect the moving block 2 and the left bearing 6, and the cylindrical pin 9 of the positioning right bearing is used to limit and connect the right bearing 5.
[0009] Heavy metal parts are placed on top of the device. In actual processing, the screw 3 is rotated by a wrench, causing the screw 3 to move laterally and thus lift the movable block 2, causing the center height of the movable block 2 to change, thereby changing the center height of the metal parts placed on the device. The right bearing 5 and left bearing 6, which are installed on the movable block 2 and the base 1, bear the weight of the metal parts. Due to the special structural design, the force required to change the center height of the metal parts is reduced.
[0010] The beneficial effects of this utility model are:
[0011] A device for adjusting the center height in four-axis machining of heavy metal parts integrates two bearings, three cylindrical pins, a movable block, and a pair of screws and nuts into a single unit. The movable block is lifted by the screws, and the center height of the metal part is adjusted by the rotation and positional change of the two bearings. This device features a lightweight and compact structure, low manufacturing cost, and safe and reliable operation. It improves the versatility of four-axis CNC milling machines in machining metal parts at specific heights, and largely solves the problem of parts not meeting required center height during machining. Attached Figure Description
[0012] Figure 1 This is an isometric drawing of a device for adjusting the center height in four-axis machining of heavy metal parts.
[0013] Figure 2 This is a top view of a device for adjusting the center height in four-axis machining of heavy metal parts.
[0014] Figure 3 It is an isometric drawing of a movable block of a center height adjustment device used for four-axis machining of heavy metal parts.
[0015] Figure 4 It is an isometric drawing of the contact point between the screw and the moving block of a four-axis machining center height adjustment device used for machining heavy metal parts.
[0016] Figure 5 It is an isometric drawing for assembling a center height adjustment device base, movable block, bearing and cylindrical pin for four-axis machining of heavy metal parts. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0018] Referring to the attached drawings, a device for adjusting the center height in four-axis machining of heavy metal parts comprises a base (1), a movable block (2), a screw (3), a nut (4), a right bearing (5), a left bearing (6), and a cylindrical pin.
[0019] The base (1) is a cuboid structure with part of the solid cut off according to the requirements of the device. A groove is milled on the upper left of the base (1) to install the movable block (2); and there is a through hole on the front to position the movable block (2). The cylindrical pin (7) for positioning the movable block is placed in the through hole to connect the movable block (2) and the base (1); a threaded hole is chiseled on the outside of the movable block (2); a groove is also milled on the upper right of the base (1) and there is a through hole on the front; the movable block (2) is a thickened rib structure with a through hole in the middle. The cylindrical pin (7) for positioning the movable block connects the base (1) and the movable block (2) so that the movable block (2) can rotate around the cylindrical pin (7) for positioning the movable block. A groove for installing the left bearing (6) is opened on the upper part. The cylindrical pin (7) for positioning the left bearing (6) connects the base (1) and the movable block (2) so that the movable block (2) can rotate around the cylindrical pin (7) for positioning the movable block. 8) Connect the left bearing (6) and the movable block (2); the tail of the screw (3) is a flat structure. The screw (3) is installed on the base and extends into the movable block (2) by rotating the screw (3); the nut (4) is close to the threaded hole of the base to increase the preload of the screw; the right bearing (5) and the left bearing (6) are cylindrical roller bearings. Because the installation positions are different, the sizes are different; the cylindrical pin (7) for positioning the movable block, the cylindrical pin (8) for positioning the left bearing, and the cylindrical pin (9) for positioning the right bearing are all cylindrical structures and are used to connect parts; the cylindrical pin (8) for positioning the left bearing is used to position and connect the left bearing (6), the cylindrical pin (7) for positioning the movable block is used to position and connect the movable block (2) and the left bearing (6), and the cylindrical pin (9) for positioning the right bearing is used to position and connect the right bearing (5).
[0020] After the heavy metal parts are placed on the base, the screw (3) is turned with a wrench to adjust the center height. The change in the length of the screw (3) extending into the base causes the movable block (2) to rotate around the cylindrical pin (7) of the positioning movable block, changing the position of the movable block (2). Since the support points of the heavy metal parts are the right bearing (5) and the left bearing (6), when the position of the movable block (2) changes, it causes the right bearing (5) and the left bearing (6) to rotate, reducing the friction of the heavy metal parts. By turning the screw (3) with a wrench, the movable block (2) is pushed to the corresponding height, thereby achieving the effect of adjusting the center height of the heavy metal parts.
Claims
1. A device for adjusting the center height in four-axis machining of heavy metal parts, characterized in that: It consists of a base (1), a movable block (2), a screw (3), a nut (4), a right bearing (5), a left bearing (6), a cylindrical pin (7) for positioning the movable block, a cylindrical pin (8) for positioning the left bearing, and a cylindrical pin (9) for positioning the right bearing. The base (1) is a cuboid structure with part of the solid cut off according to the requirements of the device. A threaded hole is drilled on the outside of the movable block (2). The movable block (2) is a thickened rib structure and is connected to the base (1) by a cylindrical pin. There is a circular through hole in the middle of the movable block (2) for installing the cylindrical roller left bearing (6). The cylindrical roller left bearing (6) is connected to the movable block (2) by the cylindrical pin. The cylindrical roller right bearing (5) is fixed to the other side of the base (1) by the cylindrical pin (9) for positioning the right bearing. The screw (3) is installed in the threaded hole, and the nut (4) is installed on the contact part between the screw (3) and the outside of the base (1).
2. The device for adjusting the center height in four-axis machining of heavy metal parts according to claim 1, characterized in that: Heavy metal parts are placed on top of the device. In actual processing, the screw (3) is rotated by a wrench, causing the screw (3) to move laterally and thus lift the movable block (2), causing the center height of the movable block (2) to change, thereby changing the center height of the metal parts placed on the device. The right bearing (5) and left bearing (6) installed on the movable block (2) and the base (1) bear the weight of the metal parts. Due to the special structural design, the force required to change the center height of the metal parts is reduced.