Simplified-control rotary tool magazine for drilling and milling machining center

Abstract

The utility model relates to a simply controlled rotary tool magazine for a drilling and milling machining center, which belongs to the field of profile drilling and milling equipment, and comprises a cutter head, the cutter head is provided with a plurality of cutter mounting stations along the circumferential direction, and the center of the cutter head is vertically connected with a rotating shaft; an output shaft of the motor is connected with an input shaft of the cam indexer, an output shaft of the cam indexer is connected with the rotating shaft, the motor and the cam indexer drive the cutterhead to rotate so that control over the rotating angle of the cutterhead can be simplified, angle control over the cam indexer is mechanical control, and the angle of the cutterhead can be adjusted by adjusting the size of an indexing angle. Starting and stopping of the motor are controlled according to the number of rotation turns of the motor, then rotation of the cutterhead is controlled, compared with control of a servo control system of a servo motor, more circuit wiring ports do not need to be configured, and control is simpler.

Description

Technical Field

[0001] The utility model relates to the field of profile drilling and milling processing equipment, in particular to a simplified control rotary tool magazine for a drilling and milling center. Background Art

[0002] The rotary tool magazine of a drilling and milling center is a device to meet the needs of tool storage and tool change. Multiple tools are placed in the rotary tool magazine and selected as needed during use. Currently, the power drive of the rotary tool magazine generally uses a servo motor. The rotary tool magazine rotates at different angles by the servo motor to align the used tool with the profile. We know that the principle of controlling the rotation angle by the servo motor is relatively complex. The internal servo system mainly relies on pulses for positioning. The servo motor rotates an angle corresponding to a pulse when it receives a pulse signal. The servo motor itself has the function of emitting pulses. The number of pulses it emits corresponds to the rotation angle, which echoes the pulses emitted by the servo system to accurately control the rotation of the motor. It can be seen that it is very complex to control the rotation between different tools in the rotary tool magazine by the control system of the servo motor. Especially when adding a tool to the rotary tool magazine, many ports need to be added to the control system of the servo motor. This seemingly simple step has a great impact on the control system and circuit control of the servo motor. How to simplify the control of the rotary tool magazine has become an urgent problem to be solved currently. Summary of the Utility Model

[0003] The rotation of the tool disc in the existing rotary tool magazine is generally driven by a servo motor. The servo motor relies on its internal servo control system to control the rotation angle of the tool disc. When adding a tool to the rotary tool magazine, many ports need to be added to its control system. This seemingly simple step has a great impact on the circuit control of the servo control system. In order to simplify the control, this application designs a rotary tool magazine with simplified control for a drilling and milling center. The specific technical solution adopted is as follows:

[0004] A rotary tool magazine with simplified control for a drilling and milling center, comprising:

[0005] A tool disc, which has a plurality of tool mounting positions along its circumference, and a rotating shaft is vertically connected to the center of the tool disc;

[0006] A motor and a cam divider, the output shaft of the motor is connected to the input shaft of the cam divider, and the output shaft of the cam divider is connected to the rotating shaft.

[0007] Preferably, a protective cover is provided around the periphery of the tool disc. The center of the protective cover is connected to the center of the tool disc through a connecting shaft, and the lower bottom surface of the protective cover is open.

[0008] Preferably, the protective cover includes:

[0009] Fixed cover, the fixed cover has a notch;

[0010] Movable cover, the shape of the movable cover is the same as that of the notch and its area is not less than that of the notch. The center of the movable cover is hinged to the center of the fixed cover, so that the movable cover can rotate relative to the hinge, thereby closing and opening the notch.

[0011] Preferably, a telescopic cylinder is also connected between the fixed cover and the movable cover. The cylinder end of the telescopic cylinder is hinged to the upper end face of the fixed cover, and the piston rod end is hinged to the movable cover.

[0012] Preferably, the telescopic cylinder is a pneumatic cylinder, an electric cylinder or an oil cylinder.

[0013] Preferably, it further includes: a proximity switch, the proximity switch is fixed to the box body of the cam divider through a bracket, the proximity switch is located below the cutter head and is arranged towards the outer peripheral edge of the cutter head.

[0014] Preferably, digital marks are provided corresponding to multiple tool installation stations.

[0015] The utility model can simplify the control of the rotation angle of the cutter head by driving the cutter head to rotate through the motor and the cam divider. The angle control of the cam divider is a mechanical control. By adjusting the size of the indexing angle and the number of rotation circles of the motor, the start and stop of the motor are controlled, and then the rotation angle of the cutter head is controlled. When additional tools are needed, the indexing angle of the cam divider can be changed accordingly. Compared with the servo control system of the servo motor, it does not need to configure many circuit wiring ports and the control is simpler. Description of the Drawings

[0016] Figure 1 It is the front view of the utility model.

[0017] In the figure, 1. Motor, 2. Cam divider, 3. Rotating shaft, 4. Cutter head, 5. Digital mark, 6. Tool, 7. Protective cover, 701. Movable cover, 702. Fixed cover, 8. Notch, 9. Telescopic cylinder, 10. Connecting frame, 11. Proximity switch, 12. Bracket, 13. Connecting shaft. Detailed Embodiment

[0018] To clearly illustrate the technical features of the solution, the utility model will be elaborated in detail below through specific embodiments and in combination with the drawings.

[0019] In addition, in the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0020] As Figure 1 shown, the present application is a simplified control rotary tool magazine for a drilling and milling machining center, mainly used in a drilling and milling machining center for profile drilling and milling. It includes a tool disc 4, a motor 1, and a cam divider 2. Here, the motor 1 is an ordinary motor, that is, a reducer with a model of 5IK60GN-YF is used. The tool disc 4 has a plurality of tool mounting positions along its circumferential direction, and different tools 6 can be mounted on the tool mounting positions to meet the requirements of using different tools 6 under different working conditions. A rotating shaft 3 is vertically connected to the center of the lower surface of the tool disc 4, and the rotating shaft 3 is connected to the output shaft of the cam divider 2; the input shaft of the cam divider 2 is connected to the output shaft of the motor 1. When the motor 1 rotates, it drives the input shaft and output shaft of the cam divider 2 to rotate. Since the indexing angle has been adjusted before the divider is installed, the indexing angle refers to the angle that the camshaft rotates when the output shaft of the motor 1 rotates one week. The number of turns of the motor 1 corresponds to the angle that the camshaft rotates, and the angle that the cam rotates corresponds to the angle that the tool disc 4 rotates. By controlling the start and stop of the motor 1, the tool 6 on the tool disc 4 can be stopped at a certain position. The start and stop of the motor 1 are controlled according to the number of turns of the motor 1. This control method is simple and easier to implement.

[0021] Furthermore, in order to protect the tool disc 4 and the tools 6 thereon and prevent more dust from falling on the tool disc 4 and the tools 6, a circular protective cover 7 is provided around the periphery of the tool disc 4. The center of the protective cover 7 is connected to the center of the upper surface of the tool disc 4 through a connecting shaft 13. The connecting shaft 13 is perpendicular to both the protective cover 7 and the tool disc 4. The lower bottom surface of the protective cover 7 is open, which is to facilitate the tool 6 to extend downward from the tool disc 4 so as to drill and mill profiles.

[0022] Further, regarding the structure of the above-mentioned protective cover 7, it specifically includes a fixed cover 702 and a movable cover 701. The fixed cover 702 has a notch 8, and the notch 8 is arc-shaped. The arc-shaped notch 8 matches the shape of the cutter head 4, making it easier to operate. The movable cover 701 is also arc-shaped and matches the shape of the notch 8. The area of the movable cover 701 is not less than (greater than or equal to) the area of the notch 8. The center of the movable cover 701 is hinged to the center of the fixed cover 702, enabling the movable cover 701 to rotate relative to the hinge point, thereby closing and opening the notch 8. By providing the notch 8 and the movable cover 701, when installing or disassembling the tool 6, the movable cover 701 can be opened for convenient operation. During normal operation, the movable cover 701 is closed to cover the notch 8, which can protect the internal tool 6 from being contaminated with a large amount of dust.

[0023] Further, the rotation of the above-mentioned movable cover 701 around the hinge point can be manually achieved or can be through the following electric means, that is, a telescopic cylinder 9 is also connected between the fixed cover 702 and the movable cover 701. Here, the telescopic cylinder 9 can be a pneumatic cylinder, an electric cylinder or an oil cylinder. The cylinder body end of the telescopic cylinder 9 is hinged to the upper end face of the fixed cover 702 through a connecting frame 10, and the piston rod end is hinged to the movable cover 701. The specific hinge position is near the inner side of the center. When the piston rod of the telescopic cylinder 9 extends, the movable cover 701 is rotated to the notch 8 to close the notch 8, and when it retracts, the movable cover 701 is rotated to the side of the notch 8 to open the notch 8.

[0024] Further, in order to facilitate controlling the start and stop of the motor 1, in addition to the above-mentioned components, the present application further includes a proximity switch 11. The proximity switch 11 is fixed to the box body of the cam divider 2 through a bracket 12. The proximity switch 11 is located below the cutter head 4 and is arranged facing the outer peripheral edge of the cutter head 4. When the cutter head 4 rotates, the tool 6 thereon moves to the proximity switch 11, and the proximity switch 11 acts to control the start and stop of the motor 1.

[0025] Further, in order to facilitate distinguishing and identifying different tools 6 on the cutter head 4, digital marks 5 are provided corresponding to multiple tool installation stations. The digital marks 5 can be achieved by engraving, or by means of nameplate marking, or by writing with a marker pen, etc.

[0026] The above specific embodiments cannot be used as a limitation on the protection scope of the present utility model. For those skilled in the art of this technology, any alternative improvement or transformation made to the embodiments of the present utility model falls within the protection scope of the present utility model.

[0027] Those parts not detailed in the present utility model are all well-known technologies to those skilled in the art of this technology.

Claims

1. A rotary tool magazine with simplified control for a drilling and milling machining center, characterized in that: include: A cutter disc, wherein the cutter disc has a plurality of cutter installation stations along its circumference, and a rotating shaft is vertically connected to the center of the cutter disc; A motor and a cam divider, wherein the output shaft of the motor is connected to the input shaft of the cam divider, and the output shaft of the cam divider is connected to the rotating shaft.

2. The rotary tool magazine with simplified control for a drilling and milling machining center according to claim 1, characterized in that: A protective cover is arranged around the periphery of the cutter disc, the center of the protective cover is connected to the center of the cutter disc via a connecting shaft, and the lower bottom surface of the protective cover is open.

3. The rotary tool magazine with simplified control for a drilling and milling machining center according to claim 2, characterized in that: The protective cover comprises: A fixed cover, wherein the fixed cover has a notch; A movable cover, the shape of which is the same as that of the notch and its area is not less than that of the notch, the center of the movable cover is hinged to the center of the fixed cover, so that the movable cover can rotate relative to the hinge, thereby closing and opening the notch.

4. The rotary tool magazine with simplified control for a drilling and milling machining center according to claim 3, characterized in that: A telescopic cylinder is also connected between the fixed cover and the movable cover, the cylinder body end of the telescopic cylinder is hinged to the upper end surface of the fixed cover, and the piston rod end is hinged to the movable cover.

5. The rotary tool magazine with simplified control for a drilling and milling machining center according to claim 4, characterized in that: The telescopic cylinder is a pneumatic cylinder, an electric cylinder or an oil cylinder.

6. The rotary tool magazine with simplified control for a drilling and milling machining center according to claim 1, characterized in that: Also includes: A proximity switch is fixed to the housing of the cam divider through a bracket, and the proximity switch is located below the cutter disc and is arranged toward the outer circumferential edge of the cutter disc.

7. The rotary tool magazine with simplified control for a drilling and milling machining center according to claim 1, characterized in that: A plurality of the tool installation stations are correspondingly provided with numerical marks.

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