Clamping mechanism for double-end milling of die steel

Abstract

The utility model discloses a clamping mechanism for double-end milling of die steel, which is characterized in that a cross beam is arranged above a workbench through a stand column, a lifting seat is arranged on the upper surface of the workbench, a thrust bearing is arranged on the upper surface of the lifting seat, a coaming is arranged on the periphery of a tray, the tray is supported on the upper surface of the thrust bearing, and the coaming surrounds the thrust bearing. The center of the lower surface of the tray is connected with an output shaft of the gear motor through a connecting rod, the oil cylinder is arranged on the upper surface of the cross beam, a connecting sleeve is arranged on the upper surface of the pressing disc, a rotating bearing is arranged in the connecting sleeve, and a piston rod of the oil cylinder is tightly connected with an inner ring of the rotating bearing. The pressing device is reasonable in structure, compared with a traditional single-rod pressing structure, the pressing structure has the advantages that the stability of die steel is greatly improved, and meanwhile chippings can be prevented from making contact with a thrust bearing through the surrounding plate on the periphery of the tray.

Description

Technical Field

[0001] This utility model relates to the field of mold steel clamping technology, specifically a clamping mechanism for double-head milling of mold steel. Background Technology

[0002] Mold steel is a type of steel used to manufacture molds such as cold stamping dies, hot forging dies, and die casting molds. Mold materials are the material and technological foundation of the mold manufacturing industry. Among them, mold steel is a traditional mold material, and its variety, specifications, and quality play a decisive role in the performance, service life, and manufacturing cycle of the mold.

[0003] Die steel is generally machined on the side using a double-head milling machine. The clamping mechanism used for double-head milling of steel generally consists of a support tray and a rotatable pressure bar to clamp the die steel from top to bottom. Currently, only a single pressure bar structure is used, and there is still room for improvement in stability. Furthermore, the thrust bearing used for the support tray is generally exposed, and there is a risk that debris may get stuck in the thrust bearing during the machining of the side of the die steel. Therefore, an improved technology is urgently needed to solve this problem existing in the current technology. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping mechanism for double-head milling of mold steel. The pressing component uses a central pressing rod and multiple auxiliary pressing rods surrounding the central pressing rod to press the upper surface of the mold steel. Compared with the traditional single-rod pressing structure, this pressing structure greatly improves the stability of the mold steel. At the same time, a surrounding plate is provided around the pallet, which wraps around the thrust bearing, thereby preventing debris from contacting the thrust bearing and ensuring the service life of the thrust bearing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamping mechanism for double-head milling of mold steel, comprising a frame, a rotating support assembly, and a pressing assembly;

[0006] The frame includes a workbench, a base, columns and a crossbeam. The base is provided on the lower surface of the workbench. Columns are symmetrically arranged on both sides of the upper surface of the workbench. The tops of the columns are connected to both ends of the crossbeam. A lifting seat is provided on the upper surface of the workbench, and a thrust bearing is provided on the upper surface of the lifting seat.

[0007] The rotating support assembly includes a tray and a geared motor. The tray is surrounded by a plate and is supported on the upper surface of a thrust bearing. The plate surrounds the outside of the thrust bearing. The geared motor is located on the lower surface of the worktable. A connecting rod is located at the center of the lower surface of the tray. The connecting rod passes through the thrust bearing and is connected to the output shaft of the geared motor through a coupling.

[0008] The pressing assembly includes a hydraulic cylinder, a pressure plate, a central pressure rod, and auxiliary pressure rods. The hydraulic cylinder is located on the upper surface of the crossbeam. A connecting sleeve is provided on the upper surface of the pressure plate. A rotating bearing is provided inside the connecting sleeve. The piston rod of the hydraulic cylinder is tightly connected to the inner ring of the rotating bearing. A central pressure rod is located at the center of the lower surface of the pressure plate. Several auxiliary pressure rods are evenly arranged in a ring on the lower surface of the pressure plate, centered on the central pressure rod.

[0009] Preferably, the clamping mechanism for double-head milling of mold steel provided by this utility model includes a plurality of reinforcing plates at the connection between the connecting sleeve and the pressure plate.

[0010] Preferably, the clamping mechanism for double-head milling of mold steel provided by this utility model has the bottoms of the central pressure rod and the auxiliary pressure rod located on the same horizontal plane.

[0011] Preferably, in the clamping mechanism for double-head milling of mold steel provided by this utility model, the horizontal height of the bottom of the surrounding plate is lower than the horizontal height of the upper surface of the lifting seat.

[0012] Preferably, the present invention provides a clamping mechanism for double-head milling of mold steel, wherein milling head mounting platforms are provided on both sides of the worktable and the base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The pressing assembly uses a central pressing rod and multiple auxiliary pressing rods surrounding the central pressing rod to press the upper surface of the mold steel. Compared with the traditional single-rod pressing structure, this pressing structure greatly improves the stability of the mold steel. At the same time, a surrounding plate is set around the tray, which wraps around the thrust bearing to prevent debris from contacting the thrust bearing and ensure the service life of the thrust bearing. Attached Figure Description

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

[0016] Figure 2 For the appendix Figure 1 A schematic diagram of the right-side view structure;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention located at the connecting sleeve;

[0018] Figure 4 This is a schematic diagram of the pressure plate structure viewed from below.

[0019] In the diagram: 1. Workbench; 2. Base; 3. Column; 4. Crossbeam; 5. Lifting seat; 6. Thrust bearing; 7. Pallet; 8. Gear motor; 9. Enclosure; 10. Connecting rod; 11. Hydraulic cylinder; 12. Pressure plate; 13. Central pressure rod; 14. Auxiliary pressure rod; 15. Connecting sleeve; 16. Rotary bearing; 17. Reinforcing plate; 18. Milling head mounting table. Detailed Implementation

[0020] The technical solution of this 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 this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a clamping mechanism for double-head milling of mold steel, including a frame, a rotating support assembly and a pressing assembly;

[0023] The frame includes a worktable 1, a base 2, columns 3 and a crossbeam 4. The base 2 is provided on the lower surface of the worktable 1, and columns 3 are symmetrically arranged on both sides of the upper surface of the worktable 1. The tops of the columns 3 are connected to both ends of the crossbeam 4. A lifting seat 5 is provided on the upper surface of the worktable 1, and a thrust bearing 6 is provided on the upper surface of the lifting seat 5. Milling head mounting tables 18 are provided on both sides of the worktable 1 and the base 2 to realize the installation of the milling head and related milling machine structures.

[0024] The rotating support assembly includes a tray 7 and a geared motor 8. A surrounding plate 9 is provided around the tray 7. The tray 7 is supported on the upper surface of the thrust bearing 6. The surrounding plate 9 surrounds the outside of the thrust bearing 6. The horizontal height of the bottom of the surrounding plate 9 is lower than the horizontal height of the upper surface of the lifting seat 5 to ensure that the surrounding plate 9 can smoothly block the thrust bearing 6 and prevent debris from entering the thrust bearing 6. The geared motor 8 is provided on the lower surface of the worktable 1. A connecting rod 10 is provided at the center of the lower surface of the tray 7. The connecting rod 10 passes through the thrust bearing 6 and is connected to the output shaft of the geared motor 8 through a coupling.

[0025] The pressing assembly includes a hydraulic cylinder 11, a pressure plate 12, a central pressure rod 13, and auxiliary pressure rods 14. The hydraulic cylinder 11 is located on the upper surface of the crossbeam 4. A connecting sleeve 15 is provided on the upper surface of the pressure plate 12. Several reinforcing plates 17 are provided at the connection between the connecting sleeve 15 and the pressure plate 12 to ensure the structural strength between the connecting sleeve 15 and the pressure plate 12. A rotating bearing 16 is provided inside the connecting sleeve 15. The piston rod of the hydraulic cylinder 11 is tightly connected to the inner ring of the rotating bearing 16. A central pressure rod 13 is provided at the center of the lower surface of the pressure plate 12. Several auxiliary pressure rods 14 are uniformly arranged in a ring on the lower surface of the pressure plate 12 with the central pressure rod 13 as the center. The bottoms of the central pressure rod 13 and the auxiliary pressure rods 14 are located on the same horizontal plane to ensure that when the pressure plate 12 is pressed down, the bottoms of the central pressure rod 13 and the auxiliary pressure rods 14 can be pressed onto the upper surface of the mold steel.

[0026] Installation method and operating principle: First, install the thrust bearing 6 on the lifting seat 5. Then, pass the connecting rod 10 of the tray 7 through the thrust bearing 6 and the lifting seat 5, and support the tray 7 on the thrust bearing 6. At the same time, the outer perimeter plate 9 of the tray 7 surrounds the upper perimeter of the thrust bearing 6 and the lifting seat 5. Install the geared motor 8 on the lower surface of the motor base at the bottom of the worktable 1, and connect the output shaft of the geared motor 8 to the bottom of the connecting rod 10 through a coupling. Install the hydraulic cylinder 11 on the upper surface of the crossbeam 4, and pass the piston rod of the hydraulic cylinder 11 through the crossbeam 4. Insert the rotating bearing 16 into the connecting sleeve 15 on the upper surface of the pressure plate 12 and tighten it with bolts. Then, insert the piston rod of the hydraulic cylinder 11 into the inner ring of the rotating bearing 16. During the process, use a tool to tap and engage the piston rod of the hydraulic cylinder 11 with the rotating bearing 16. The inner diameter of the inner ring of the rotating bearing 16 should be completely matched with the piston rod of the hydraulic cylinder 11 to prevent it from falling off. The installation is complete. Before use, install the milling head on the milling head mounting table 18 with the tool facing the clamping mechanism. During operation, the mold steel is placed on the tray 7, and the pressure plate 12 is pressed down by the hydraulic cylinder 11 until the anti-slip rubber pads 17 at the bottom of the central pressure rod 13 and the auxiliary pressure rods 14 are pressed onto the upper surface of the mold steel. During processing, the tray 7 is rotated by the reduction motor 8, which in turn rotates the mold steel, thus enabling the processing of various sides of the mold steel. This utility model has a reasonable structure. The pressing component uses a central pressure rod 13 and multiple auxiliary pressure rods 14 surrounding the central pressure rod 13 to press the upper surface of the mold steel. Compared with the traditional single-rod pressing structure, this pressing structure greatly improves the stability of the mold steel. At the same time, a surrounding plate 9 is provided around the tray 7, which wraps around the thrust bearing 6, thereby preventing debris from contacting the thrust bearing 6 and ensuring the service life of the thrust bearing 6.

[0027] Any aspects of this utility model not described in detail are technologies known to those skilled in the art.

[0028] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A clamping mechanism for double-head milling of mold steel, characterized in that: Includes frame, rotary support assembly and pressing assembly; The frame includes a workbench (1), a base (2), columns (3) and a crossbeam (4). The workbench (1) has a base (2) on its lower surface and columns (3) symmetrically arranged on both sides of its upper surface. The tops of the columns (3) are connected to both ends of the crossbeam (4). The workbench (1) has a lifting seat (5) on its upper surface and a thrust bearing (6) on its upper surface. The rotating support assembly includes a tray (7) and a geared motor (8). The tray (7) is surrounded by a surrounding plate (9). The tray (7) is supported on the upper surface of the thrust bearing (6). The surrounding plate (9) surrounds the thrust bearing (6). The geared motor (8) is located on the lower surface of the worktable (1). A connecting rod (10) is located at the center of the lower surface of the tray (7). The connecting rod (10) passes through the thrust bearing (6) and is connected to the output shaft of the geared motor (8) through a coupling. The pressing assembly includes a hydraulic cylinder (11), a pressure plate (12), a central pressure rod (13), and auxiliary pressure rods (14). The hydraulic cylinder (11) is located on the upper surface of the crossbeam (4). A connecting sleeve (15) is provided on the upper surface of the pressure plate (12). A rotating bearing (16) is provided inside the connecting sleeve (15). The piston rod of the hydraulic cylinder (11) is tightly connected to the inner ring of the rotating bearing (16). A central pressure rod (13) is provided at the center of the lower surface of the pressure plate (12). Several auxiliary pressure rods (14) are uniformly arranged in a ring on the lower surface of the pressure plate (12) with the central pressure rod (13) as the center.

2. The clamping mechanism for double-head milling of mold steel according to claim 1, characterized in that: Several reinforcing plates (17) are provided at the connection between the connecting sleeve (15) and the pressure plate (12).

3. The clamping mechanism for double-head milling of mold steel according to claim 1, characterized in that: The bottoms of the central pressure bar (13) and the auxiliary pressure bar (14) are located on the same horizontal plane.

4. The clamping mechanism for double-head milling of mold steel according to claim 1, characterized in that: The bottom of the enclosure (9) is at a lower level than the upper surface of the raised seat (5).

5. The clamping mechanism for double-head milling of mold steel according to claim 1, characterized in that: Milling head mounting platforms (18) are provided on both sides of the workbench (1) and the base (2).

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