Chain type tool magazine of numerical control machine tool

Abstract

The utility model discloses a chain type tool magazine of a numerical control machine tool, which comprises a mounting bracket, a tool clamping swing arm mechanism is arranged on the mounting bracket, and a tool arm is arranged in the tool clamping swing arm mechanism; the chain tool magazine support is arranged on the mounting support and located on one side of the tool clamping swing arm mechanism, an oval long-strip-shaped chain is arranged on the chain support in a surrounding mode, a plurality of second tool clamping jaws are arranged on the chain in a surrounding mode, and a driving mechanism for driving the chain is arranged on the chain tool magazine support; the tool changing mechanism is arranged on the chain tool magazine support and located in the oval long-strip-shaped chain. Compared with the prior art, the tool changing mechanism is arranged on the chain tool magazine support, the structural design is reasonable, the occupied space is reduced, the tool clamping swing arm mechanism is arranged on the installation support, and a tool arm can drive a tool with the two ends clamped by the first tool clamping jaws to rotate and change the tool; and a function of preparing and supplementing a next cutter needing to be replaced can be achieved, the cutter replacing speed is effectively increased, and the cutter replacing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tool magazines of numerical control machine tools, and particularly relates to a chain tool magazine of a numerical control machine tool. Background Art

[0002] The tool magazine is an important part of various machining centers. During the machining process, under the control of the numerical control device according to the instructions of the numerical control program, the tool can be automatically selected from the tool magazine according to the machining requirements and positioned, and the required machining tool is transmitted to the machine tool spindle and fixed by the automatic tool changer mechanism; the existing tool magazines include turret tool magazines, linear tool magazines, disc tool magazines, chain tool magazines, etc.

[0003] In the prior art, the tool changing action of the chain tool magazine is relatively complex. Through the independent design of the tool changing manipulator and the chain tool magazine, the tool changing manipulator is located between the chain tool magazine and the machine tool spindle, and the tool picking, tool preparation and tool exchange are completed through the translational movement of the machine tool spindle and the rotational movement of the arm of the tool changing manipulator. On the one hand, the overall occupied space is large and the positioning accuracy requirement is relatively high. On the other hand, the tool changing efficiency is low and the tool changing speed needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a chain tool magazine of a numerical control machine tool, aiming at solving the problems of large occupied space of the tool changing mechanism and slow tool changing speed in the prior art.

[0005] To achieve the above purpose, the utility model provides a chain tool magazine of a numerical control machine tool, including: a mounting bracket, a tool clamping swing arm mechanism is arranged on the mounting bracket, a tool arm is arranged in the tool clamping swing arm mechanism, and first tool claws are arranged at both ends of the tool arm; a chain tool magazine bracket, which is arranged on the mounting bracket and is located on one side of the tool clamping swing arm mechanism, an elliptical long-strip-shaped chain is wound around the chain bracket, and a plurality of second tool claws are wound around the chain, and a driving mechanism for driving the chain is arranged on the chain tool magazine bracket; a tool changing mechanism, which is arranged on the chain tool magazine bracket and is located inside the elliptical long-strip-shaped chain, and is used for picking up the tool clamped by the second tool claw and feeding it into the first tool claw to clamp the tool.

[0006] Further, the tool clamping swing arm mechanism includes a swing cylinder, a tool arm rotating shaft and a tool arm, the swing cylinder is connected to the mounting bracket, the tool arm rotating shaft is vertically connected to the swing cylinder, the tool arm is connected to the top end of the tool arm rotating shaft, and the first tool claws are symmetrically arranged at both ends of the tool arm.

[0007] Further, the structures of the first tool claw and the second tool claw are the same.

[0008] Further, the tool changing mechanism includes a mounting base, a horizontal pushing cylinder, and a vertical pushing cylinder. A horizontal guide rail slider is provided at the top of the mounting base. One end of the horizontal guide rail slider away from the tool clamping swing arm mechanism is provided with a top plate vertically connected to the mounting base. The horizontal pushing cylinder is slidably connected to the horizontal guide rail slider through a first guide rail bracket, and the output end of the horizontal pushing cylinder is fixedly connected to the top plate. One end of the first guide rail bracket close to the tool clamping swing arm mechanism is vertically provided with a second guide rail bracket. The vertical pushing cylinder is vertically arranged on one side of the second guide rail bracket through a connecting plate, and a tool sleeve is provided at the output end of the vertical pushing cylinder.

[0009] Further, a vertical guide rail slider is provided on one side of the second guide rail bracket, and a sliding plate is provided on one side of the tool sleeve. The sliding plate is connected to the vertical guide rail slider.

[0010] Further, the chain drive mechanism includes a driving gear and a first driven gear. The driving gear and the first driven gear are respectively meshed and connected to both inner ends of the chain and are connected to the chain tool magazine bracket. A driving motor is provided at the bottom of the driving gear.

[0011] Further, a second driven gear is provided between the driving gear and the first driven gear, and the second driven gear is meshed and connected to one of the inner sides of the chain.

[0012] Compared with the prior art, the chain tool magazine of the numerical control machine tool provided by the present utility model has a tool changing mechanism arranged on the chain tool magazine bracket, with a reasonable structural design and reduced occupied space. By providing a tool clamping swing arm mechanism on the mounting bracket, the tool clamped by the first tool clamping claws at both ends can be rotated for tool changing by the tool arm, and it can play a role in preparing and supplementing the next tool to be changed, effectively improving the tool changing speed and efficiency. Description of the Drawings

[0013] Figure 1 One of the structural schematic diagrams of the chain tool magazine of the numerical control machine tool of the present utility model;

[0014] Figure 2 Two of the structural schematic diagrams of the chain tool magazine of the numerical control machine tool of the present utility model;

[0015] Figure 3 Structural schematic diagram of the tool clamping swing arm mechanism in the chain tool magazine of the numerical control machine tool of the present utility model;

[0016] Figure 4 Structural schematic diagram of the tool changing mechanism in the chain tool magazine of the numerical control machine tool of the present utility model.

[0017] Description of the Reference Numerals

[0018] 1 - Machine tool spindle; 2 - Tool;

[0019] 10 - Mounting bracket;

[0020] 20 - Tool clamping swing arm mechanism; 21 - Swing cylinder; 22 - Arm rotating shaft; 23 - Arm; 24 - First tool jaw;

[0021] 30 - Chain tool magazine bracket; 31 - Chain; 32 - Second tool jaw; 33 - Driving gear; 34 - First driven gear; 35 - Second driven gear; 36 - Driving motor;

[0022] 40 - Tool changing mechanism; 41 - Mounting base; 42 - Horizontal guide rail slider; 43 - Top plate; 44 - Horizontal pushing cylinder; 45 - First guide rail bracket; 46 - Second guide rail bracket; 461 - Vertical guide rail slider; 47 - Vertical pushing cylinder; 48 - Tool sleeve; 49 - Slide plate. Detailed implementation mode

[0023] The following further describes the present utility model in detail with specific embodiments.

[0024] In the present utility model, when directional terms appear, the directional terms are for the convenience of describing the present utility model 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 should not be construed as limiting the specific protection scope of the present utility model.

[0025] In the present utility model, unless otherwise clearly specified and defined, when terms such as "arranged on", "connected", and "connected to" appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or connected through an intermediate medium, and can be internally connected and communicated between two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] As Figure 1 and Figure 2 shown, a chain tool magazine of a numerical control machine tool includes a mounting bracket 10, a chain tool magazine bracket 30, and a tool changing mechanism 40.

[0027] The mounting bracket 10 is installed on the frame of the numerical control machine tool. The mounting bracket 10 is provided with a tool clamping swing arm mechanism 20. The tool clamping swing arm mechanism 20 is provided with an arm 23. The two ends of the arm 23 are provided with first tool jaws 24 for clamping the tool 2 to be replaced by the spindle and the preparatory tool 2 after processing.

[0028] The chain tool magazine bracket 30 is arranged on the mounting bracket 10 and is located on one side of the tool clamping swing arm mechanism 20. An elliptical long-strip-shaped chain 31 is wound around the chain 31 bracket. A plurality of second tool claws 32 are wound around the chain 31. A driving mechanism for driving the chain 31 is arranged on the chain tool magazine bracket 30. Among them, the second tool 2 is connected to the double-hole ear chain of the chain 31 through the tool 2 bracket.

[0029] The tool changing mechanism 40 is arranged on the chain tool magazine bracket 30 and is located inside the elliptical long-strip-shaped chain 31, and is used to pick up the tool 2 clamped on the second tool claw 32 and send it into the first tool claw 24 on the tool arm 23 to clamp the tool 2.

[0030] In specific implementation, the tool changing mechanism 40 is arranged on the chain tool magazine bracket 30, which can effectively save the occupied space. The chain-type tool magazine drives the tool 2 on the chain 31 to move to the tool changing position of the tool changing mechanism 40 through the program written by programming. The tool 2 on the chain 31 is changed into the first tool claw 24 at one end of the tool arm 23 through the tool changing mechanism 40 and waits for the preparation of tool change. After the spindle of the CNC machine tool sends the processed tool 2 into the first tool claw 24 at the other end of the tool arm 23, by rotating the tool arm 23, the prepared tool 2 is turned to the machine tool spindle 1 for tool change, and then the processed tool 2 is sent into the second tool claw 32 of the vacant tool 2 on the chain 31 through the tool changing mechanism 40, and the tool change is repeated in this way. Thus, the tool changing speed and tool changing efficiency are effectively improved, and the processing efficiency of the CNC machine tool for workpieces is improved.

[0031] As Figures 1 to 3 shown, in this embodiment, the tool clamping swing arm mechanism 20 includes a swing cylinder 21, a tool arm rotating shaft 22 and a tool arm 23. The swing cylinder 21 is connected to the mounting bracket 10. The tool arm rotating shaft 22 is vertically connected to the swing cylinder 21. The tool arm 23 is connected to the top of the tool arm rotating shaft 22. The first tool claws 24 are symmetrically arranged at both ends of the tool arm 23.

[0032] In specific implementation, the swing cylinder 21 drives the tool arm rotating shaft 22 to drive both ends of the tool arm 23 to rotate by an angle of 180°, so as to quickly rotate the prepared tool 2 to the position of the tool 2 to be taken by the machine tool spindle 1 for tool change.

[0033] Among them, the structures of the first tool claw 24 and the second tool claw 32 are the same to adapt to clamping tools 2 of the same specification.

[0034] As Figure 1 、 Figure 2 and Figure 4As shown in the figure, in this embodiment, the tool clamping swing arm mechanism 20 includes a mounting base 41, a lateral pushing cylinder 44, and a vertical pushing cylinder 47. A lateral guide rail slider 42 is provided at the top of the mounting base 41. One end of the lateral guide rail slider 42 away from the tool clamping swing arm mechanism 20 is provided with a top plate 43 vertically connected to the mounting base 41. The lateral pushing cylinder 44 is slidably connected to the lateral guide rail slider 42 through a first guide rail bracket 45. The output end of the lateral pushing cylinder 44 is fixedly connected to the top plate 43. One end of the first guide rail bracket 45 close to the tool clamping swing arm mechanism 20 is vertically provided with a second guide rail bracket 46. The vertical pushing cylinder 47 is vertically arranged on one side of the second guide rail bracket 46 through a connecting plate. The output end of the vertical pushing cylinder 47 is provided with a tool sleeve 48.

[0035] During specific implementation, the lateral pushing cylinder 44 abuts against the top plate 43, and drives the second guide rail bracket 46 vertically connected to the first guide rail bracket 45 to move laterally on the mounting bracket 10 through the lateral guide rail slider 42. The tool sleeve 48 is driven by the vertical pushing cylinder 47 to pick up and replace the tool 2 on the first tool jaw 24 and the second tool jaw 32.

[0036] In this embodiment, a vertical guide rail slider 461 is provided on one side of the second guide rail bracket 46. A slide plate 49 is provided on one side of the tool sleeve 48. The slide plate 49 is connected to the vertical guide rail slider 461.

[0037] During specific implementation, the tool sleeve 48 is slidably connected to the vertical guide rail slider 461 through the slide plate 49, which is beneficial to the accurate positioning of the tool taking and placing positions of the tool sleeve 48 and avoids the position deviation of the tool handle of the tool sleeve 48.

[0038] As Figures 1 to 2 shown, in this embodiment, the chain 31 driving mechanism includes a driving gear 33 and a first driven gear 34. The driving gear and the first driven gear 34 are respectively meshed and connected to both inner ends of the chain 31 and are connected to the chain tool magazine bracket 30. A driving motor 36 is provided at the bottom of the driving gear 33. The driving motor 36 is a reduction motor. The driving motor 36 drives the driving gear to drive the tool 2 connected to the chain 31 to move in position.

[0039] Among them, a second driven gear 35 is provided between the driving gear 33 and the first driven gear 34. The second driven gear 35 is meshed and connected to one inner side of the chain 31, and plays a role in tensioning the chain 31 between the driving gear 33 and the first driven gear 34.

[0040] A chain-type tool magazine for a numerical control machine tool provided by the present utility model, compared with the prior art, the tool changing mechanism 40 is arranged on the chain tool magazine bracket 30, with a reasonable structural design, reducing the occupied space. By providing a tool clamping swing arm mechanism 20 on the mounting bracket 10, the tool 2 clamped by the first tool claw 24 at both ends can be rotated for tool changing by the tool arm 23, and it can play a role in preparing and supplementing the tool 2 required for the next tool change, effectively improving the tool changing speed and efficiency.

[0041] In the case of no conflict, the above-mentioned embodiments and the features in the embodiments can be combined with each other.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A chain-type tool magazine for a numerical control machine tool, characterized in that, Including: An installation bracket, on which a tool clamping swing arm mechanism is provided. In the tool clamping swing arm mechanism, there is a tool arm, and first tool claws are provided at both ends of the tool arm. A chain tool magazine bracket, which is arranged on the installation bracket and is located on one side of the tool clamping swing arm mechanism. An elliptical long strip-shaped chain is wound around the chain bracket, and a plurality of second tool claws are wound around the chain. A driving mechanism for driving the chain is provided on the chain tool magazine bracket. A tool changing mechanism, which is arranged on the chain tool magazine bracket and is located inside the elliptical long strip-shaped chain, and is used to pick up the tool clamped on the second tool claw and send it into the first tool claw to clamp the tool.

2. The chain-type tool magazine of a numerical control machine tool according to claim 1, wherein, The tool clamping swing arm mechanism includes a swing cylinder, a tool arm rotating shaft and a tool arm. The swing cylinder is connected to the installation bracket, the tool arm rotating shaft is vertically connected to the swing cylinder, the tool arm is connected to the top end of the tool arm rotating shaft, and the first tool claws are symmetrically arranged at both ends of the tool arm.

3. The chain-type tool magazine of a numerically controlled machine tool according to claim 2, wherein The structures of the first tool claw and the second tool claw are the same.

4. The chain-type tool magazine of a numerical control machine tool according to claim 1, wherein, The tool changing mechanism includes a mounting seat, a horizontal pushing cylinder and a vertical pushing cylinder. A horizontal guide rail slider is provided at the top of the mounting seat. A top plate vertically connected to the mounting seat is provided at one end of the horizontal guide rail slider away from the tool clamping swing arm mechanism. The horizontal pushing cylinder is slidably connected to the horizontal guide rail slider through a first guide rail bracket. The output end of the horizontal pushing cylinder is fixedly connected to the top plate. A second guide rail bracket is vertically provided at one end of the first guide rail bracket close to the tool clamping swing arm mechanism. The vertical pushing cylinder is vertically arranged on one side of the second guide rail bracket through a connecting plate, and a tool sleeve is provided at the output end of the vertical pushing cylinder.

5. The chain-type tool magazine of a numerical control machine tool according to claim 4, characterized in that, A vertical guide rail slider is provided on one side of the second guide rail bracket, and a sliding plate is provided on one side of the tool sleeve. The sliding plate is connected to the vertical guide rail slider.

6. The chain-type tool magazine of a numerically controlled machine tool according to claim 1, wherein, The chain driving mechanism includes a driving gear and a first driven gear. The driving gear and the first driven gear are respectively meshed and connected to both inner ends of the chain and are connected to the chain tool magazine bracket. A driving motor is provided at the bottom of the driving gear.

7. The chain-type tool magazine of a numerical control machine tool according to claim 6, characterized in that, A second driven gear is provided between the driving gear and the first driven gear, and the second driven gear is meshed and connected to one inner side of the chain.

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