Operation driving mechanism of tool magazine
By using general electric motor drive intermittent devices in the tool magazine of the tool machine, combined with the actuator, follower and gear device, the problems of high cost and inconvenient maintenance of the traditional tool magazine drive mechanism are solved, and efficient and accurate tool magazine operation is achieved and convenient maintenance.
Patent Information
- Application Number
- CN202420788098.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The traditional tool magazine drive mechanism of tool magazine is expensive and inconvenient to repair due to the use of servo motors and encoders.
A general electric motor is used as the power source for driving the intermittent device, and combined with the driving member, the driven member and the gear device, the intermittent rotation of the turntable is achieved, avoiding complex control systems and electronic components.
It reduces the cost of the overall system, ensures accurate rotation and positioning of the tool sleeve, improves the efficiency and accuracy of tool change operations, and facilitates maintenance and maintenance.
Smart Images
Figure CN222520668U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a disc-type tool magazine, and more particularly to a driving mechanism for the tool magazine, which drives a rotating disc by intermittent rotation. Background Art
[0002] The traditional tool magazine drive mechanism of machine tools mainly includes a disc-type tool magazine, a servo motor, a reducer, a transmission device, an encoder, etc. The tool magazine has a turntable and multiple tool sleeves, which are used to hold different tools. The servo motor is connected to the reducer, which drives the turntable to rotate through the transmission device, and the encoder is used to detect the rotor speed and rotation angle of the servo motor to ensure that the turntable can accurately rotate to the specified position.
[0003] Since the aforementioned mechanism uses a servo motor as a power source and needs to be used with an encoder, the mechanism cost is relatively high. In addition, the servo motor, reducer, transmission device, and encoder are all arranged on the back of the tool magazine, which is not easy to maintain. Utility Model Content
[0004] To solve the above problems, the present application discloses a tool magazine operation drive mechanism, which uses a general electric motor as a power source to drive an intermittent device, thereby eliminating the high-cost servo motor and effectively reducing the cost of the overall system. At the same time, the mechanism ensures that the tool holder can be accurately rotated and positioned, thereby improving the efficiency of tool changing operations.
[0005] To achieve the above-mentioned purpose, the present application provides a tool magazine operation drive mechanism in one embodiment, which includes a fixed seat, a rotating disk, a driving motor, a driving member, a driven member and a gear device. The rotating disk has a front side and a rear side, and the rotating disk is rotatably arranged on the fixed seat with the rear side. The front side is provided with a rotating gear, and a plurality of tool sleeves are wound around the outer side of the rotating gear; the driving motor is arranged on the front side of the rotating disk, and the driving motor has a rotating shaft; the driving member is connected to the rotating shaft and rotates with it, and the driving member has two convex shafts; the driven member is connected to the driving member, and a plurality of grooves are arranged around the periphery of the driven member, and the grooves are clutched and engaged with the two convex shafts, so that the driving member drives the driven member to produce intermittent rotation; the gear device is connected between the rotating gear and the driven member.
[0006] The driven element is surrounded by a plurality of spacers, and a groove is provided between every two spacers.
[0007] Among them, each spacer has a force-applying section and a connected sliding section on both sides to allow the two cams to slide in contact; when the two cams contact the two sliding sections at the same time, the two cams are in a slipping state relative to the spacer, and when one of the cams contacts one of the force-applying sections, it can push against the corresponding spacer, so that the active member intermittently drives the driven member.
[0008] The two force-applying sections of each spacer gradually shrink toward the axis of the driven member, and each force-applying section is straight, and each sliding section is arc-shaped.
[0009] The two convex shafts are symmetrically arranged at an angle of 180 degrees.
[0010] There are six grooves, which are arranged at intervals of 60 degrees.
[0011] The invention further comprises a bearing plate. The turntable has an opening penetrating the front side and the rear side. The bearing plate is assembled on the fixing seat through the opening. The driving motor is mounted on the bearing plate.
[0012] The invention further comprises an angle sensing device for detecting the rotation information of the active component; the rotating gear is arranged around the periphery of the opening.
[0013] The angle sensing device includes a proximity switch and two sensed protrusions arranged on the periphery of the active component, the two sensed protrusions are symmetrically arranged at an angle of 180 degrees; the two convex shafts are symmetrically arranged at an angle of 180 degrees, and the two sensed protrusions are staggered with the convex shafts at an angle of 90 degrees.
[0014] Wherein, the two convex shafts are respectively rotatably equipped with a bearing.
[0015] The outer periphery of the rotating gear has a toothed portion meshingly connected with the gear device, and the rotating shaft is not coaxial with the axis of the rotating gear.
[0016] Among them, the driven member has a driven shaft mounted on the supporting plate, the gear device includes a driven gear, a first transmission gear and a second transmission gear, the driven gear is connected to the driven shaft, the first transmission gear and the second transmission gear are coaxially connected to the supporting plate, and the first transmission gear is meshed with the driven gear, and the second transmission gear is meshed with the tooth portion of the rotating gear; it also includes a cover member, which is covered on the active member, the driven member and the gear device.
[0017] Thus, the present application does not use a servo motor as a driving source, thus avoiding a complex control system and corresponding electronic components, thereby effectively reducing the cost of the overall system.
[0018] At the same time, the present application adopts an intermittent device to drive the rotation of the turntable, so that the tool sleeve on the turntable can be accurately rotated and positioned during the tool changing process, thereby improving the efficiency and accuracy of the tool changing operation.
[0019] In addition, the driving motor, active member, driven member and gear device of the present application are all arranged at the front side of the turntable, which has the advantage of being easy to repair and maintain. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is an appearance diagram of the operating drive mechanism of the tool magazine of the present application installed on a processing machine.
[0021] Figure 2 It is an appearance diagram of the operating drive mechanism of the tool magazine of this application.
[0022] Figure 3 It is a side view of the operating drive mechanism of the tool magazine of the present application.
[0023] Figure 4 It is a front view of the operating drive mechanism of the tool magazine of this application.
[0024] Figure 5 It is a partial structural exploded view of the operating drive mechanism of the tool magazine of the present application.
[0025] Figures 6 to 11 It is a schematic diagram of the operating state of the active component and the driven component of the operating drive mechanism of the tool magazine of the present application. DETAILED DESCRIPTION
[0026] For the convenience of explaining the central idea of the present application in the above-mentioned application content column, it is expressed with specific embodiments. In addition, in order to better explain the principle of the present application, specific language will be used to describe these examples. However, it should be clear that this does not mean that the scope of the present application is limited.
[0027] Various modifications and further improvements may be conceived and made by professionals in the relevant technical field, including the technical features described herein and any other application of the principles of the present application. Such modifications and applications should be considered within the scope of the present application. In addition, in order to improve readability, some of the components are omitted in some illustrations, or are depicted using imaginary lines or other methods.
[0028] See also Figures 1 to 11 As shown in FIG. 1 , the tool magazine operation drive mechanism 100 of the present application includes a fixed seat 10, a rotating disk 20, a driving motor 30, a driving member 40, a driven member 50 and a gear device 60. The tool magazine operation drive mechanism 100 is used for a machine table 1 of a processing machine. The operation drive mechanism 100 is mounted on the machine table 1 with the fixed seat 10, and as shown in FIG. Figure 2 and Figure 3 As shown, the front of the fixed seat 10 is a turntable 20, and the rear of the fixed seat 10 is a tool changing mechanism 2.
[0029] The turntable 20 has a front side 21 and a rear side 22. The turntable 20 is rotatably mounted on the fixed seat 10 via the rear side 22. The front side 21 is provided with a rotating gear 23. A plurality of tool sleeves 24 are wound around the outer side of the rotating gear 23. Each tool sleeve 24 is used to insert a tool, and the tool corresponding to the tool sleeve 24 can be exchanged with the tool of the spindle of the processing machine through the tool changing mechanism 2.
[0030] In addition, the rotating disk 20 has an opening 25 penetrating the front side 21 and the rear side 22. The rotating gear 23 is disposed around the periphery of the opening 25. The outer periphery of the rotating gear 23 has a tooth portion 231, and the tooth portion 231 is meshed with the gear device 60.
[0031] The driving motor 30 is a general electric motor and is disposed on the front side 21 of the turntable 20. The driving motor 30 has a rotating shaft 31. In the embodiment of the present application, a supporting plate 70 is further included. The supporting plate 70 is assembled on the fixing base 10 through the opening 25, and the supporting plate 70 is used for the driving motor 30 to be mounted thereon. In some embodiments, the supporting plate 70 is connected to the fixing base 10 through a plurality of brackets 71 extending through the opening 25, so that the supporting plate 70 mounts the driving motor 30 on the front side 21 of the turntable 20, which is convenient for assembly and maintenance. Among them, the rotating shaft 31 is not coaxial with the axis of the rotating gear 23, that is, the driving motor 30 is offset relative to the rotating gear 23.
[0032] The active member 40 is connected to the rotating shaft 31 of the driving motor 30 and rotates with it. The active member 40 has two convex shafts 41 facing the rotating disk 20. Each convex shaft 41 is rotatably mounted with a bearing 42. In the embodiment of the present application, the two convex shafts 41 are symmetrically arranged at an angle of 180 degrees.
[0033] In another embodiment of the present application, an angle sensing device 80 is further included, which includes a proximity switch 81 and two sensed protrusions 82 disposed on the periphery of the active member 40. The proximity switch 81 senses the sensed protrusions 82 to detect the rotation information of the active member 40, and sends a corresponding signal according to the rotation information to control the operation of the drive motor 30. The two sensed protrusions 82 are symmetrically arranged at an angle of 180 degrees, and the two sensed protrusions 82 are staggered with the two convex shafts 41 at an angle of 90 degrees. In the present application, the number of proximity switches 81 is set to two, and the number of sensed protrusions 82 is set to four.
[0034] The driven member 50 is connected to the driving member 40 and rotates with it. A plurality of grooves 51 are arranged around the periphery of the driven member 50, and the grooves 51 engage the two convex shafts 41 in a clutched manner, so that the driving member 40 drives the driven member 50 to generate intermittent rotation. In the embodiment of the present application, the driven member 50 has a driven shaft 52 mounted on the bearing plate 70, and the driven member 50 is arranged around a plurality of spacers 53 with the driven shaft 52 as the center, and a groove 51 is arranged between every two spacers 53, and the number of grooves 51 is 6, and the grooves 51 are arranged at intervals of 60 degrees. Furthermore, each spacer 53 has a force-applying section 531 and a connected sliding section 532 on both sides, so that the convex shaft 41 and the bearing 42 can slide in contact. Among them, the force-applying section 531 of each spacer 53 gradually shrinks toward the axis of the driven member 50, and each force-applying section 531 is straight, and each sliding section 532 is arc-shaped.
[0035] The gear device 60 is connected between the rotating gear 23 and the driven member 50. The gear device 60 includes a driven gear 61, a first transmission gear 62 and a second transmission gear 63. The driven gear 61 is connected to the driven shaft 52, the first transmission gear 62 and the second transmission gear 63 are coaxially connected to the carrier plate 70, and the first transmission gear 62 is meshed with the driven gear 61, and the second transmission gear 63 is meshed with the tooth portion 231 of the rotating gear 23. The reduction gear ratio of the second transmission gear 63 to the rotating gear 23 is 5:1, and the aforementioned tool sleeves 24 are 30. In other words, the setting angle of each tool sleeve 24 is 12 degrees, that is, when the driven member 50 rotates 60 degrees, the rotating gear 23 can rotate 12 degrees, that is, the tool sleeve 24 rotates one tool change position.
[0036] The invention further comprises a cover member 90 which covers the driving member 40, the driven member 50 and the gear device 60 to provide a protective effect and function.
[0037] See also Figures 6 to 11 , which is a schematic diagram illustrating the state in which the active member 40 intermittently drives the driven member 50, thereby intermittently driving the rotating gear 23 to rotate. Figure 6 As shown, the two protruding shafts 41 are respectively a first protruding shaft 411 and a second protruding shaft 412 , the first protruding shaft 411 is on the top, and the second protruding shaft 412 is on the bottom, and the first protruding shaft 411 and the second protruding shaft 412 are both simultaneously in contact with the two sliding sections 532 of the corresponding spacer 53 , which is the initial position of the active member 40 .
[0038] like Figure 7 As shown, when the active member 40 is Figure 6 During the process of rotating 30 degrees clockwise from the position, the first protruding shaft 411 and the second protruding shaft 412 are in a slipping state relative to the spacer 53, and the first protruding shaft 411 gradually disengages from the sliding section 532 clockwise, while the second protruding shaft 412 moves into the groove 51. At this time, the first protruding shaft 411 and the second protruding shaft 412 have not yet pushed the follower 50.
[0039] like Figure 8 As shown, when the active member 40 is Figure 7 During the process of rotating the position of the driven member 40 by 30 degrees clockwise (i.e., rotating the active member 40 by 60 degrees), the first protrusion 411 has disengaged from the spacer 53, and the second protrusion 412 has entered the inner end of the groove 51 and pushed against the force-applying section 531 of the spacer 53, so that the second protrusion 412 pushes the spacer 53, so that the driven member 50 is gradually driven to rotate.
[0040] like Fig. 9As shown, the active member 40 continues to rotate to a position of 90 degrees, so that the first protruding shaft 411 and the second protruding shaft 412 are in a left and right position as shown in the figure. At this time, during the process of the second protruding shaft 412 pushing against the force application section 531 of the spacer 53, the driven member 50 has gradually rotated 30 degrees.
[0041] Continue reading Fig.10 As shown, the active member 40 continues to rotate to the position of 120 degrees, at which time the first protruding shaft 411 gradually rotates close to and contacts the spacer 53, and the second protruding shaft 412 moves to the middle of the groove 51 and pushes against the spacer 53, allowing the driven member 50 to continue to rotate to the position of 60 degrees. At this time, through the transmission of the aforementioned gear device 60, the rotating gear 23 can rotate 12 degrees, that is, the aforementioned tool holder 24 rotates to a tool changing position.
[0042] like Fig.11 As shown, when the active member 40 is Fig.10 During the process of rotating 60 degrees clockwise from the position thereof to the driven member 40 (i.e., rotating the active member 40 180 degrees), the first protruding shaft 411 and the second protruding shaft 412 respectively abut against the sliding section 532 of the spacer 53 and are in a slipping state (at this time, the first protruding shaft 411 and the second protruding shaft 412 do not push the driven member 50), so that the first protruding shaft 411 is in a downward position and the second protruding shaft 412 is in an upward position.
[0043] Thus, according to the aforementioned Figures 6 to 11 According to the action description, in the embodiment of the present application, the active member 40 realizes a rotation of 180 degrees, and the driven member 50 realizes a rotation of 60 degrees. It is worth noting that during the rotation of the active member 40 from 0 degrees to 60 degrees, the driven member 50 is stationary. However, when the active member 40 rotates from 60 degrees to 120 degrees, the driven member 50 rotates 60 degrees accordingly, and when the active member 40 rotates from 120 degrees to 180 degrees, the driven member 50 remains stationary. In view of this, the present application adopts a linkage structure of two cam shafts 41 and the driven member 50, so that the driven member 50 can rotate 120 degrees while the active member 40 rotates one circle. Through this coordination, the tool sleeve 24 on the turntable 20 can achieve the rotation of two tool changing positions, effectively improving the operating stroke of the turntable 20.
[0044] When the active member 40 rotates at a constant angular speed by a predetermined angle, the active member 40 does not drive the driven member 50; and when the active member 40 continues to rotate by another predetermined angle, the active member 40 drives the driven member 50. Thus, through such a mechanism, the rotating gear 23 can be rotated in an intermittent manner, which is beneficial to the rotation and positioning of the tool holder 24 during the tool changing process.
[0045] Therefore, the active member 40 and the driven member 50 in the present application can be regarded as an intermittent device. The intermittent device is driven by the drive motor 30, so that the active member 40 and the driven member 50 can be intermittently transmitted in a clutch manner, thereby driving the rotating gear 23 to rotate intermittently, so as to achieve precise rotation and positioning of the turntable 20, which is convenient for tool changing operations.
[0046] In summary, this application has the following advantages:
[0047] 1. The driving motor 30 of the present application is a general electric motor, which avoids the complex control system and corresponding electronic components required for using a servo motor, thereby reducing the cost of the overall system.
[0048] 2. The present application adopts an intermittent device to drive the rotation of the turntable 20, so that the tool sleeve 24 on the turntable 20 can be accurately rotated and positioned during the tool changing process, thereby improving the efficiency and accuracy of the tool changing operation.
[0049] 3. The driving motor 30, the active member 40, the driven member 50 and the gear device 60 of the present application are all arranged at the front side of the turntable 20, which is convenient for repair and maintenance.
[0050] Although this application is described with a preferred embodiment, those skilled in the art can make various changes without departing from the spirit and scope of this application. The above embodiments are only used to illustrate this application and are not used to limit the scope of this application. All modifications or changes that do not violate the spirit of this application are within the scope of this patent application.
[0051] Explanation of symbols
[0052] 1: Machine table. 2: Tool changing mechanism.
[0053] 100: Operation drive mechanism. 10: Fixed seat.
[0054] 20: Turntable. 21: Front side.
[0055] 22: Rear side. 23: Rotating gear.
[0056] 231: Tooth. 24: Knife sheath.
[0057] 25: Opening hole. 30: Driving motor.
[0058] 31: Rotating shaft. 40: Active part.
[0059] 41: convex shaft. 411: first convex shaft.
[0060] 412: Second cam shaft. 42: Bearing.
[0061] 50: follower. 51: groove.
[0062] 52: driven shaft. 53: spacer.
[0063] 531: force application section. 532: sliding section.
[0064] 60: Gear unit. 61: Driven gear.
[0065] 62: First transmission gear. 63: Second transmission gear.
[0066] 70: Loading plate. 71: Bracket.
[0067] 80: Angle sensing device. 81: Proximity switch.
[0068] 82: Protrusion to be sensed. 90: Cover member.
Claims
1. A tool magazine operation drive mechanism, characterized in that: include: A fixed seat; A rotating disk having a front side and a rear side, wherein the rotating disk is rotatably disposed on the fixing seat by the rear side, and a rotating gear is disposed on the front side, and a plurality of knife sleeves are wound around the outer side of the rotating gear; a driving motor, disposed on the front side of the turntable, the driving motor having a rotating shaft; An active member connected to the rotating shaft and rotating therewith, the active member having two convex shafts; A driven member connected to the driving member, wherein a plurality of grooves are arranged around the periphery of the driven member, and the plurality of grooves are clutchedly engaged with the two convex shafts so that the driving member drives the driven member to generate intermittent rotation; as well as A gear device is connected between the rotating gear and the driven member.
2. A tool magazine operation drive mechanism as claimed in claim 1, characterized in that: The driven element is surrounded by a plurality of spacers, and a groove is provided between every two of the spacers.
3. A tool magazine operation drive mechanism as claimed in claim 2, characterized in that: Each of the spacers has a force-applying section and a connected sliding section on both sides to allow the two cams to slide in contact; when the two cams contact the two sliding sections at the same time, the two cams are in a slipping state relative to the spacers, and when one of the cams contacts one of the force-applying sections, it can push against the corresponding spacer, so that the active member intermittently drives the driven member.
4. A tool magazine operation drive mechanism as claimed in claim 3, characterized in that: The force-applying section of each of the spacers is gradually contracted toward the axis of the driven member, and each of the force-applying sections is straight, and each of the sliding sections is arc-shaped.
5. A tool magazine operation drive mechanism as claimed in claim 4, characterized in that: The two convex shafts are symmetrically arranged at an angle of 180 degrees.
6. A tool magazine operation drive mechanism as claimed in claim 5, characterized in that: The number of the plurality of grooves is 6, and the plurality of grooves are arranged at intervals of 60 degrees.
7. A tool magazine operation drive mechanism as claimed in claim 1, characterized in that: It further comprises a bearing plate, the turntable has an opening penetrating the front side surface and the rear side surface, the bearing plate is assembled on the fixing seat through the opening, and the driving motor is mounted on the bearing plate.
8. A tool magazine operation drive mechanism as claimed in claim 7, characterized in that: It also includes an angle sensing device for detecting the rotation information of the active component; the rotating gear is arranged around the periphery of the opening.
9. A tool magazine operation drive mechanism as claimed in claim 8, characterized in that: The angle sensing device includes a proximity switch and two sensed protrusions arranged on the periphery of the active component, the two sensed protrusions are symmetrically arranged at an angle of 180 degrees; the two convex shafts are symmetrically arranged at an angle of 180 degrees, and the two sensed protrusions are staggered with the convex shafts at an angle of 90 degrees.
10. A tool magazine operation drive mechanism as claimed in claim 5, characterized in that: The two convex shafts are respectively rotatably equipped with a bearing.
11. A tool magazine operation drive mechanism as claimed in claim 7, characterized in that: The outer periphery of the rotating gear has a tooth portion meshingly connected with the gear device, and the rotating shaft is not coaxial with the axis of the rotating gear.
12. A tool magazine operation drive mechanism as claimed in claim 11, characterized in that: The driven member has a driven shaft mounted on the supporting plate, and the gear device includes a driven gear, a first transmission gear and a second transmission gear. The driven gear is connected to the driven shaft, the first transmission gear and the second transmission gear are coaxially connected to the supporting plate, and the first transmission gear is meshed with the driven gear, and the second transmission gear is meshed with the tooth portion of the rotating gear; it also includes a cover member, which is covered on the active member, the driven member and the gear device.