Cutter descending guide mechanism of vertical milling machine

Abstract

The utility model discloses a vertical milling machine cutter descending guide mechanism which comprises a cylinder body and a positioning plate, a limiting hole and a guide hole which are communicated with each other are arranged in the cylinder body, the aperture of the limiting hole is larger than that of the guide hole, a guide rod is arranged in the guide hole in a sliding mode, and the guide rod is connected with the positioning plate. The end, located in the limiting hole, of the guide rod is provided with a limiting block integrally formed with the guide rod. According to the cutter descending guide mechanism of the vertical milling machine, after the falling point position of the guide rod is determined, the positioning plate can be fixed at the falling point position of the guide rod, so that the guide rod penetrates through the through hole in the positioning plate when descending, and the guide rod cannot penetrate through the through hole when the descending position of the cutter deviates, and therefore, the cutter descending guide mechanism of the vertical milling machine is convenient to use. When the cutter descends, the limiting block at the top of the guide rod exerts force on the pressing switch, so that a circuit at the pressing switch is switched on, a warning lamp emits light to remind personnel that the descending position of the cutter deviates, the use requirement is met, and the cutter descending device is suitable for being widely popularized and used.

Description

Technical Field

[0001] The utility model relates to the technical field of milling machines, in particular to a tool descending guide mechanism for a vertical milling machine. Background Art

[0002] A milling machine is a type of machine tool, mainly used for metal processing of structures such as holes and slots. The tool of a vertical milling machine will move up and down under the action of the spindle. In order to ensure the long-term lifting stability of the tool during the process, a wire mechanism will be installed between the bottom end of the spindle and the top of the milling machine frame.

[0003] The existing milling machine tool guide mechanism generally consists of a fixed cylinder and a movable rod. The cylinder limits the rod so that it can only move up and down. The bottom of the rod is then connected to the bottom end of the spindle to limit the lifting path of the tool. However, this structure has certain limitations because personnel cannot be informed in time when the lifting path of the tool deviates. Summary of the Invention

[0004] The main purpose of the utility model is to provide a tool lowering guide mechanism for a vertical milling machine, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A tool lowering guide mechanism for a vertical milling machine comprises a cylinder and a positioning plate, wherein a limiting hole and a guide hole that are connected are provided in the cylinder, and the aperture of the limiting hole is larger than the aperture of the guide hole, a guide rod is slidably provided in the guide hole, and a limiting block integrally formed with the end of the guide rod located in the limiting hole is provided, a press switch is installed at the top of the cylinder through a reserved groove and a screw, a warning light is installed on the outside of the cylinder through a screw, a through hole is opened on the top surface of the positioning plate, the bottom of the guide rod passes through the through hole, and a positioning ring is provided on the periphery of the guide rod, and a fixing plate is installed on one side of the positioning ring through a connecting rod and a screw.

[0007] Furthermore, a spring is welded on the outer periphery of the top of the cylinder body, and a buffer plate is welded on the free end of the spring, and multiple groups of springs are provided.

[0008] Furthermore, a wire hole is opened on the top surface of one side of the cylinder, and the wire of the push switch passes through the wire hole, and the current output end of the push switch and the current input end of the warning light are electrically connected through the wire.

[0009] Furthermore, the positioning ring is slidably connected to the guide rod, and a fixing screw is installed on the surface of one end of the guide rod through a reserved threaded hole.

[0010] Furthermore, a connecting plate is welded to the top of the cylinder.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting a positioning plate, a guide rod, a push switch and a warning light, when the landing position of the guide rod is determined, the positioning plate can be fixed at the landing position of the guide rod, so that the guide rod passes through the through hole on the positioning plate when it descends. When the descending position of the tool deviates, the guide rod cannot pass through the through hole. Therefore, the limit block at the top of the guide rod will apply force to the push switch, so that the circuit at the push switch is turned on, and then the warning light is turned on, reminding personnel that the descending position of the tool is deviated, so as to meet the usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the overall structure of a tool lowering guide mechanism of a vertical milling machine.

[0014] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of a cylinder of a tool descending guide mechanism of a vertical milling machine.

[0015] Figure 3 The utility model is a schematic diagram of the connection structure of a buffer plate and a spring of a tool descending guide mechanism of a vertical milling machine.

[0016] In the figure: 1. Cylinder; 2. Fixing screw; 3. Connecting rod; 4. Fixing plate; 5. Through hole; 6. Positioning plate; 7. Positioning ring; 8. Guide rod; 9. Warning light; 10. Connecting plate; 11. Limit block; 12. Guide hole; 13. Limit hole; 14. Buffer plate; 15. Spring; 16. Press switch; 17. Wire hole. Implementation Method

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1 、 2As shown, a tool lowering guide mechanism for a vertical milling machine includes a cylinder 1 and a positioning plate 6, wherein a limit hole 13 and a guide hole 12 are provided in the cylinder 1, and the aperture of the limit hole 13 is larger than the aperture of the guide hole 12, the limit hole 13 is located above the guide hole 12, a guide rod 8 is slidably provided in the guide hole 12, and a limit block 11 integrally formed therewith is provided at the end of the guide rod 8 located in the limit hole 13, and the matching relationship between the limit block 11 and the limit hole 13 is an overmatch, a press switch 16 is installed on the top of the cylinder 1 through a reserved groove and a screw, and a warning light is installed on the outside of the cylinder 1 through a screw 9. When the push switch 16 is pressed, the warning light 9 will be controlled to work. A through hole 5 is provided on the top surface of the positioning plate 6, and the bottom of the guide rod 8 passes through the through hole 5. When the position of the tool is offset, the position of the guide rod 8 will also be offset. Therefore, it cannot pass through the through hole 5, which will cause the limit block 11 to apply force to the push switch 16, and a positioning ring 7 is provided on the periphery of the guide rod 8. A fixing plate 4 is installed on one side of the positioning ring 7 through a connecting rod 3 and a screw. The guide rod 8 can be connected to the tool holder at the bottom of the spindle through the fixing plate 4, and it should be noted that the fixed position of the fixing plate 4 should not affect the rotation of the tool.

[0019] Among them, such as Figure 2 、 3 As shown, a spring 15 is welded to the outer periphery of the top of the cylinder 1, and a buffer plate 14 is welded to the free end of the spring 15. There are multiple groups of springs 15. When the limit block 11 is about to apply force to the press switch 16, it will first contact the buffer plate 14. At this time, the spring 15 will retract under the force, so that the buffer plate 14 will produce a certain displacement, and then apply a certain force to the press switch 16 to prevent the press switch 16 from being damaged due to direct contact with the limit block 11 and excessive force.

[0020] Among them, such as Figure 1 、 2 As shown, a wire hole 17 is provided on the top surface of one side of the cylinder 1, and the wire of the push switch 16 passes through the wire hole 17. The current output end of the push switch 16 and the current input end of the warning light 9 are electrically connected through the wire, and the cables connected to the push switch 16 can pass through the wire hole 17 and out of the cylinder 1.

[0021] Among them, such as Figure 1 As shown, the positioning ring 7 is slidably connected to the guide rod 8, and a fixing screw 2 is installed on the surface of one end of the guide rod 8 through a reserved threaded hole. Personnel can adjust the position of the positioning ring 7 on the guide rod 8, and personnel can rotate the fixing screw 2 so that one end of it rests against the guide rod 8, thereby fixing the position of the positioning ring 7.

[0022] Among them, such as Figure 1As shown, a connecting plate 10 is welded on the top of the cylinder 1, and personnel can fix the cylinder 1 on the frame of the milling machine through the connecting plate 10.

[0023] It should be noted that the present invention is a tool lowering guide mechanism for a vertical milling machine. During installation, the cylinder 1 needs to be fixed to the inner top of the milling machine frame, and then the fixing plate 4 is connected and fixed to the tool holder of the milling machine spindle. At this time, when the tool makes a descending movement, the tool holder will drive the guide rod 8 to move in the guide hole 12 through the fixing plate 4 and other mechanisms, and the guide hole 12 will limit the guide rod 8 so that the guide rod 8 can only move vertically downward, thereby limiting the descending path of the tool. During this process, personnel can fix the positioning plate 6 at this position according to the landing point of the guide rod 8, so that the guide rod 8 passes through the through hole 5 on the positioning plate 6 when descending. When the descending position of the tool deviates, the guide rod 8 cannot pass through the through hole 5. Therefore, the limit block 11 at the top of the guide rod 8 will apply force to the press switch 16, so that the circuit at the press switch 16 is turned on, and then the warning light 9 is turned on, reminding personnel that the descending position of the tool is deviated to meet the use requirements.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A tool lowering guide mechanism for a vertical milling machine, comprising a cylinder (1) and a positioning plate (6), characterized in that: The cylinder (1) is provided with a limit hole (13) and a guide hole (12) that are connected to each other, and the aperture of the limit hole (13) is larger than the aperture of the guide hole (12). A guide rod (8) is slidably provided in the guide hole (12), and a limit block (11) formed integrally with the guide rod (8) is provided at the end of the guide rod (8) located in the limit hole (13). A press switch (16) is installed on the top of the cylinder (1) through a reserved groove and screws, and a warning light (9) is installed on the outside of the cylinder (1) through screws. A through hole (5) is opened on the top surface of the positioning plate (6), and the bottom of the guide rod (8) passes through the through hole (5). A positioning ring (7) is provided on the periphery of the guide rod (8), and a fixing plate (4) is installed on one side of the positioning ring (7) through a connecting rod (3) and screws.

2. The tool lowering guide mechanism for a vertical milling machine according to claim 1, characterized in that: A spring (15) is welded to the outer periphery of the top of the cylinder (1), and a buffer plate (14) is welded to the free end of the spring (15), and the spring (15) is provided in multiple groups.

3. The tool lowering guide mechanism for a vertical milling machine according to claim 1, characterized in that: A wire hole (17) is provided on the top surface of one side of the cylinder (1), and the wire of the push switch (16) passes through the wire hole (17). The current output end of the push switch (16) and the current input end of the warning light (9) are electrically connected through the wire.

4. The tool lowering guide mechanism for a vertical milling machine according to claim 1, characterized in that: The positioning ring (7) is slidably connected to the guide rod (8), and a fixing screw (2) is installed on one end surface of the guide rod (8) through a reserved threaded hole.

5. The tool lowering guide mechanism for a vertical milling machine according to claim 1, characterized in that: A connecting plate (10) is welded to the top of the cylinder (1).

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