Chain type tool magazine
The problem of poor positioning accuracy of the chain tool magazine is solved by coordinating the driving sprocket and the driven sprocket with the rolling bearing and the guide rail, and the stable movement of the tool and space saving are achieved.
Patent Information
- Application Number
- CN202422814065.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-11-18
AI Technical Summary
The positioning accuracy of traditional chain tool magazines is poor, and the chain is prone to jumping up and down, resulting in poor tool stability and possible damage.
The driving sprocket and the driven sprocket are matched with arc-shaped notches and rolling bearings, combined with guide rails and cam bearing followers to form a rolling fit, thereby improving positioning accuracy and stability.
The positioning accuracy of the chain tool magazine and the stability of tool movement are improved, tool damage is avoided, the structure is compact, and the installation space is reduced.
Smart Images
Figure CN223353673U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machine tool components, in particular to a chain tool magazine. Background Art
[0002] A chain tool magazine is a tool storage device used in CNC equipment such as machining centers. Compared to other types of tool magazines, such as disc-type magazines, chain tool magazines can accommodate more tools. However, traditional chain tool magazines use a back-and-forth motion of the chain to move the tools. The chain must both bear the weight of the tools and provide transmission. As the chain rotates around the driving and driven sprockets, it suffers from poor positioning accuracy and is prone to up-and-down chain jumps. This causes the tools to follow the chain's up-and-down movement, resulting in poor tool stability and potential damage. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a chain tool magazine, improve the positioning accuracy and ensure the stability of the tool during movement.
[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:
[0005] A chain tool magazine, comprising:
[0006] A runway-shaped substrate, wherein a first guide rail is provided on the side wall of the substrate along the circumference direction, and a second guide rail and a third guide rail are provided above and below the first guide rail respectively along the circumference direction of the substrate;
[0007] The sprocket assembly includes a driving sprocket and a driven sprocket that are parallel to each other and coaxially connected. The driving sprocket is located below the base plate and flush with the third guide rail, and the driven sprocket is located above the base plate and flush with the second guide rail. The edges of the driving sprocket and the driven sprocket are both provided with a plurality of arc-shaped notches at intervals along the circumferential direction.
[0008] A chain assembly, the chain assembly surrounds the outside of the base plate and is sleeved on the driving sprocket and the driven sprocket, a plurality of first rolling bearings and second rolling bearings are respectively spaced apart at the top and bottom of the chain assembly, the first rolling bearings and the second rolling bearings are respectively used to fit with the arc-shaped notches of the driving sprocket and the driven sprocket to form a rolling fit, and are also respectively used to fit with the outer side walls of the second guide rail and the third guide rail to form a rolling fit, two cam bearing followers are spaced apart at the upper and lower parts of the middle part of the chain assembly, the gap between the two cam bearing followers is adapted to the thickness of the first guide rail, and the two cam bearing followers are respectively used to fit with the top surface and bottom surface of the first guide rail to form a rolling fit;
[0009] A plurality of tool handle assemblies, wherein the tool handle assemblies are installed on the chain assembly at intervals;
[0010] The driving device is used to drive the driving sprocket to rotate.
[0011] In some embodiments, a semicircular plate and a rectangular plate are fixed on the top and bottom of the substrate, the semicircular plate is fixed on the end of the substrate away from the sprocket assembly, and the rectangular plate is arranged along the length direction of the substrate; the second guide rail is arranged on the outer wall of the semicircular plate and the rectangular plate at the top of the substrate, and the third guide rail is arranged on the outer wall of the semicircular plate and the rectangular plate at the bottom of the substrate.
[0012] In at least one embodiment, a limit plate is provided on the rectangular plate located on the top of the base plate, the limit plate is fixed parallel to the rectangular plate, a rectangular channel for the first rolling bearing to pass through is provided on the limit plate, and a baffle is provided on the outside of the first rolling bearing; the diameter of the first rolling bearing is adapted to the distance between the baffle and the second guide rail.
[0013] Compared with the prior art, the present invention achieves at least the following beneficial effects:
[0014] The utility model drives the active sprocket to rotate through the driving device, and the active sprocket drives the driven sprocket to rotate. The active sprocket and the driven sprocket cooperate with the first rolling bearing and the second rolling bearing through the arc-shaped notch, thereby driving the chain assembly to move around the base plate, and the first rolling bearing and the second rolling bearing can respectively roll on the outer side walls of the second guide rail and the third guide rail, and the two cam bearing followers can respectively roll on the top surface and the bottom surface of the first guide rail. Since the gap between the two cam bearing followers is adapted to the thickness of the first guide rail, that is, the two cam bearing followers cooperate with the gap of the first guide rail, the two cam bearing followers can be prevented from jumping up and down, thereby improving the positioning accuracy, ensuring the stability of the tool handle assembly and the tool when moving, and avoiding damage to the tool; the utility model has a simple structure and is easy to install. The sprocket assembly, chain assembly, tool handle assembly and driving device are installed on the base plate. The overall structural design is compact and the volume is smaller than that of the same type of chain tool magazine. It can be installed on the machining center to reduce the installation space occupied. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] One or more embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
[0016] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;
[0017] Figure 2 This is a schematic structural diagram of a tool handle removal assembly according to an embodiment of the present invention;
[0018] Figure 3 for Figure 2 A local enlarged schematic diagram of area A;
[0019] Figure 4 This is a schematic diagram of the connection structure of the base plate and the chain assembly of an embodiment of the utility model;
[0020] Figure 5 This is a schematic diagram of the connection structure of the handle assembly and the chain assembly in an embodiment of the utility model.
[0021] The numbers in the figure are: 1. Base plate; 11. Semicircular plate; 12. Rectangular plate; 2. Sprocket assembly; 21. Driving sprocket; 22. Driven sprocket; 23. Rotating shaft; 3. Chain assembly; 31. Male connecting plate; 311. Connecting protrusion; 32. Female connecting plate; 321. Connecting groove; 4. Tool handle assembly; 41. Angle seat; 42. Tool clamp; 43. Tool handle; 5. Driving device; 51. Servo motor; 52. Reducer; 6. First guide rail; 7. Second guide rail; 8. Third guide rail; 9. Arc notch; 10. First rolling bearing; 20. Second rolling bearing; 30. Cam bearing follower; 40. Limit plate; 401. Rectangular channel; 402. Baffle; 50. Pin shaft. DETAILED DESCRIPTION
[0022] The present invention will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present invention can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided herein to make the disclosure of the present application more complete and to fully convey the concepts of the present application to those skilled in the art.
[0023] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting this application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. A person skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them. Furthermore, "above," "above," and "above" a first feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher level than the second feature. "Below," "below," and "below" a first feature may include the first feature being directly below or diagonally below the second feature, or simply indicate that the first feature is at a lower level than the second feature.
[0024] like Figures 1 to 5 As shown, a chain tool magazine is installed on a machining center for use, comprising a base plate 1, a sprocket assembly 2, a chain assembly 3, a tool handle assembly 4 and a driving device 5.
[0025] The substrate 1 is in the shape of a runway, and a first guide rail 6 is provided on the side wall of the substrate 1 along the circumference direction, and a second guide rail 7 and a third guide rail 8 are provided above and below the first guide rail 6 along the circumference direction of the substrate 1 respectively; the sprocket assembly 2 includes a driving sprocket 21 and a driven sprocket 22 arranged in parallel and coaxially connected, the driving sprocket 21 is located below the substrate 1 and is flush with the third guide rail 8, and the driven sprocket 22 is located above the substrate 1 and is flush with the second guide rail 7. The edges of the driving sprocket 21 and the driven sprocket 22 are both provided with a plurality of arc-shaped notches 9 at intervals along the circumference; the chain assembly 3 surrounds the outside of the substrate 1 and is sleeved on the driving sprocket 21 and the driven sprocket 22, and a plurality of first rolling bearings 10 and second rolling bearings 20 are respectively provided at intervals on the top and bottom of the chain assembly 3, and the axes of the first rolling bearing 10 and the second rolling bearing 20 are parallel to the axes of the driving sprocket 21 and the driven sprocket 22, and the first rolling bearing 10 The first and second rolling bearings 10 and 11 are respectively used to fit with the arc-shaped notches 9 of the driving sprocket 21 and the driven sprocket 22 to form a rolling fit. The axes of the first rolling bearing 10 and the second rolling bearing 20 are parallel to the outer walls of the second guide rail 7 and the third guide rail 8, and the first rolling bearing 10 and the second rolling bearing 20 are also respectively used to fit with the outer walls of the second guide rail 7 and the third guide rail 8 to form a rolling fit. Two cam bearing followers 30 are provided at upper and lower intervals in the middle of the chain assembly 3. The gap between the two cam bearing followers 30 is adapted to the thickness of the first guide rail 6, and the axes of the two cam bearing followers 30 are respectively parallel to the top and bottom surfaces of the first guide rail 6. The two cam bearing followers 30 are respectively used to fit with the top and bottom surfaces of the first guide rail 6 to form a rolling fit; the shank assembly 4 is installed on the chain assembly 3; the driving device 5 is used to drive the driving sprocket 21 to rotate.
[0026] The working principle of the chain tool magazine of the present invention is as follows: the driving sprocket 21 is driven to rotate by the driving device 5, and the driving sprocket 21 drives the driven sprocket 22 to rotate. Since several of the first rolling bearings 10 are rollingly matched with the arc-shaped notch 9 of the driving sprocket 21, and several of the second rolling bearings 20 are rollingly matched with the arc-shaped notch 9 of the driven sprocket 22, the driving sprocket 21 and the driven sprocket 22 rotate to drive the chain assembly 3 to move around the base plate 1, and the remaining first rolling bearings 10 and second rolling bearings 20 can respectively roll on the outer side walls of the second guide rail 7 and the third guide rail 8, and the two cam bearing followers 30 can respectively roll on the top and bottom surfaces of the first guide rail 6, thereby driving the tool handle assembly 4 to move to replace the tool; since the gap between the two cam bearing followers 30 is adapted to the thickness of the first guide rail 6, that is, the two cam bearing followers 30 are clearance-matched with the first guide rail 6, the two cam bearing followers 30 are prevented from jumping up and down, thereby improving the positioning accuracy, ensuring the stability of the tool handle assembly 4 when moving, and avoiding damage to the tool.
[0027] refer to Figures 2-4In some embodiments of the present invention, a semicircular plate 11 and a rectangular plate 12 are fixed to the top and bottom of the substrate 1. The semicircular plate 11 is fixed to the end of the substrate 1 away from the sprocket assembly 2, and the rectangular plate 12 is arranged along the length direction of the substrate 1; the second guide rail 7 is arranged on the outer side wall of the semicircular plate 11 and the rectangular plate 12 at the top of the substrate 1, and the third guide rail 8 is arranged on the outer side wall of the semicircular plate 11 and the rectangular plate 12 at the bottom of the substrate 1.
[0028] Furthermore, a limiting plate 40 is provided on the rectangular plate 12 located at the top of the base plate 1. The limiting plate 40 is fixed parallel to the rectangular plate 12 and has a rectangular channel 401 for the first rolling bearing 10 to pass through. The limiting plate 40 also has a baffle 402 located outside the first rolling bearing 10. The diameter of the first rolling bearing 10 matches the distance between the baffle 402 and the second guide rail 7. When the chain assembly 3 drives the tool handle assembly 4 to move, the first rolling bearing 10 forms a clearance fit with the baffle 402 and the second guide rail 7, thereby preventing the first rolling bearing 10 from bouncing back and forth between the baffle 402 and the second guide rail 7. This improves the positioning accuracy of the chain tool magazine and makes the tool handle assembly 4 move more smoothly.
[0029] refer to Figures 4-5 In some embodiments of the present invention, the chain assembly 3 includes a plurality of male connecting plates 31 and female connecting plates 32 connected in sequence to form a closed loop, and connecting protrusions 311 are provided on both sides of the male connecting plate 31, and connecting grooves 321 adapted to the connecting protrusions 311 are provided on both sides of the female connecting plate 32. The adjacent male connecting plates 31 and female connecting plates 32 are rotatably connected by a pin shaft 50. The pin shaft 50 is provided on the female connecting plate 32 and vertically penetrates the connecting groove 321 and the connecting protrusion 311. The first rolling bearing 10 and the second rolling bearing 20 are coaxially connected to the two ends of the pin shaft 50 respectively.
[0030] Furthermore, the tool handle assembly 4 includes an angle seat 41 , a tool clamp 42 and a tool handle 43 . The angle seat 41 is fixed on the male connecting plate 31 or the female connecting plate 32 . The tool clamp 42 is fixed on the angle seat 41 . The tool handle 43 is disposed in the tool clamp 42 .
[0031] refer to Figure 4 In some embodiments of the present invention, the sprocket assembly 2 further includes a rotating shaft 23, which is vertically disposed on the base plate 1 and rotatably connected to the base plate 1. The two ends of the rotating shaft 23 are respectively fixedly connected to the driving sprocket 21 and the driven sprocket 22. Optionally, a bearing is provided between the rotating shaft 23 and the base plate 1.
[0032] refer to Figure 2In some embodiments of the present invention, the driving device 5 includes a servo motor 51 and a reducer 52. The servo motor 51 and the reducer 52 are installed below the driving sprocket 21. The output shaft of the servo motor 51 is connected to the input shaft of the reducer 52, and the output shaft of the reducer 52 is connected to the driving sprocket 21.
[0033] The utility model installs the sprocket assembly 2, the chain assembly 3, the tool handle assembly 4 and the driving device 5 on the base plate 1. The overall structural design is compact and the volume is smaller than that of the same type of chain tool magazine. It can reduce the installation space occupied when installed on the machining center. The utility model has a simple structure and is easy to install. The driving sprocket 21 is driven to rotate by the driving device 5. The driving sprocket 21 and the driven sprocket 22 are connected to the chain assembly 3 in transmission. The movement of the chain assembly 3 can drive the tool handle assembly 4 to move. The stability of the movement of the chain assembly 3 can be ensured by arranging the first rolling bearing 10, the second rolling bearing 20 and the cam bearing follower 30 on the chain assembly 3.
[0034] It should be understood that all the above embodiments are illustrative rather than restrictive. Any modifications, equivalent changes and modifications made by those skilled in the art to the specific embodiments described above under the concept of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A chain tool magazine, characterized in that: include: A runway-shaped substrate, wherein a first guide rail is provided on a sidewall of the substrate along the circumference direction, and a second guide rail and a third guide rail are provided above and below the first guide rail respectively along the circumference direction of the substrate; a sprocket assembly, the sprocket assembly comprising a driving sprocket and a driven sprocket parallel to each other and coaxially connected, the driving sprocket being located below the base plate and flush with the third guide rail, the driven sprocket being located above the base plate and flush with the second guide rail, the edges of the driving sprocket and the driven sprocket both being provided with a plurality of arc-shaped notches spaced circumferentially; a chain assembly, the chain assembly being wrapped around the outside of the base plate and sleeved on the driving sprocket and the driven sprocket, the top and bottom of the chain assembly being respectively provided with a plurality of first rolling bearings and second rolling bearings, the first rolling bearings and the second rolling bearings being respectively used to fit with the arc-shaped notches of the driving sprocket and the driven sprocket to form a rolling fit, and also being respectively used to fit with the outer side walls of the second guide rail and the third guide rail to form a rolling fit, two cam bearing followers being spaced apart in the middle of the chain assembly, the gap between the two cam bearing followers being adapted to the thickness of the first guide rail, and the two cam bearing followers being respectively used to fit with the top surface and bottom surface of the first guide rail to form a rolling fit; A plurality of knife handle assemblies, wherein the knife handle assemblies are installed on the chain assembly at intervals; A driving device is used to drive the driving sprocket to rotate.
2. The chain tool magazine according to claim 1, characterized in that: A semicircular plate and a rectangular plate are fixed to the top and bottom of the base plate, the semicircular plate is fixed to one end of the base plate away from the sprocket assembly, and the rectangular plate is arranged along the length direction of the base plate; the second guide rail is arranged on the outer side wall of the semicircular plate and the rectangular plate at the top of the base plate, and the third guide rail is arranged on the outer side wall of the semicircular plate and the rectangular plate at the bottom of the base plate.
3. The chain tool magazine according to claim 2, characterized in that: A limit plate is provided on the rectangular plate located on the top of the base plate, and the limit plate is fixed parallel to the rectangular plate. The limit plate is provided with a rectangular channel for the first rolling bearing to pass through, and the limit plate is provided with a baffle located on the outside of the first rolling bearing; the diameter of the first rolling bearing is adapted to the distance between the baffle and the second guide rail.
4. The chain tool magazine according to claim 1, characterized in that: The chain assembly includes several male connecting plates and female connecting plates connected in sequence to form a closed loop, connecting protrusions are provided on both sides of the male connecting plate, and connecting grooves adapted to the connecting protrusions are provided on both sides of the female connecting plate. The adjacent male connecting plates and female connecting plates are rotatably connected by a pin shaft, and the pin shaft is provided on the female connecting plate and vertically passes through the connecting groove and the connecting protrusion; the first rolling bearing and the second rolling bearing are coaxially connected to the two ends of the pin shaft respectively.
5. The chain tool magazine according to claim 4, characterized in that: The tool handle assembly includes an angle seat, a tool clamp and a tool handle, the angle seat is fixed on the male connecting plate or the female connecting plate, the tool clamp is fixed on the angle seat, and the tool handle is arranged in the tool clamp.
6. The chain tool magazine according to claim 1, characterized in that: The sprocket assembly further includes a rotating shaft, which is vertically arranged on the base plate and rotatably connected to the base plate. Two ends of the rotating shaft are fixedly connected to the driving sprocket and the driven sprocket respectively.
7. The chain tool magazine according to claim 1, characterized in that: The driving device includes a servo motor and a reducer, which are installed below the driving sprocket. The output shaft of the servo motor is connected to the input shaft of the reducer, and the output shaft of the reducer is connected to the driving sprocket.