A tool loading and unloading mechanism away from the machine tool

Abstract

The present invention provides a tool taking and delivering mechanism away from the machine tool, which relates to the technical field of tool changing of machine tools and includes a support frame arranged away from the machine tool. A tool magazine mechanism, a first tool taking and delivering mechanism, and a second tool taking and delivering mechanism are installed on the support frame. The tool magazine mechanism includes a chain-type tool magazine arranged vertically, and a water receiving tray is installed below the chain-type tool magazine. Through the design of the first tool taking and delivering mechanism and the second tool taking and delivering mechanism, the tool magazine can be arranged away from the machine tool, with simple tool taking, fast running speed, and a tool preparation function. The entire tool magazine does not occupy the tool changing space of the machine tool, providing a stable and efficient tool exchange mechanism for the layout of the machine tool and the tool magazine away from each other. Since the tool magazine is externally placed and arranged in multiple layers vertically by the chain-type tool magazine, the first tool taking and delivering mechanism is used for lifting and performing tool taking and delivering operations, thereby providing more tool quantities for the operation of the machine tool and meeting the requirements of the gantry machining center and the aluminum alloy model for the tool quantity.

Description

Technical Field

[0001] The present invention relates to the technical field of tool changing for machine tools, and particularly to a tool fetching and delivering mechanism far away from the machine tool. Background Art

[0002] In the prior art, the installation position of the tool magazine of a machine tool is usually on the right side of the machine tool, close to the spindle, to facilitate tool fetching and tool changing; the tools on the tool magazine are changed to the machine tool spindle through a tool changing mechanism, and the tool changing mechanism is a device for transferring and loading and unloading tools between the tool magazine and the machine tool spindle; there are two ways of tool changing: tool changing is achieved by the relative movement between the tool magazine and the machine tool spindle and tool changing is performed using a manipulator.

[0003] Through the above prior art, we found that the current tool magazine and tool changing mechanism supporting the machine tool have the following defects:

[0004] 1. The tool magazine is installed on the machine tool, resulting in a relatively large weight of the machine tool, an increase in the load of the machine tool, and for a usage environment with requirements for the installation space or installation width, the existing design (the tool magazine is installed together) will cause an increase in width and an increase in the size of the machine tool;

[0005] 2. Since the tool magazine of the machine tool is installed together, an increase in the number of tools will inevitably increase the load of the machine tool, which has a certain limitation on the number of tools and cannot meet the requirements of multi-tool machine tool processing;

[0006] 3. Since 1 and 2 illustrate the defects of the tool magazine and the machine tool being installed together, a tool fetching and delivering mechanism that is simple to fetch tools, has a fast running speed and has a tool preparation function is needed to meet the tool changing mechanism for the layout where the machine tool and the tool magazine are far apart;

[0007] Based on the above three points, we propose a tool fetching and delivering mechanism far away from the machine tool. Summary of the Invention

[0008] In view of the above situation, to overcome the defects of the prior art, the present invention provides a tool fetching and delivering mechanism far away from the machine tool, effectively solving the problems in the background art.

[0009] To achieve the above object, the present invention provides the following technical solution: A tool fetching and delivering mechanism far away from the machine tool, including a support frame arranged far away from the machine tool, and a tool magazine mechanism, a first tool fetching and delivering mechanism and a second tool fetching and delivering mechanism are installed on the support frame;

[0010] The tool magazine mechanism includes a chain-type tool magazine arranged vertically, and a water receiving tray is installed below the chain-type tool magazine;

[0011] The first tool pick-up and delivery mechanism includes a fixed seat, a rotary cylinder, a telescopic cylinder, and a jaw cylinder. The rotary cylinder is installed at the upper end of the fixed seat, and the output end of the rotary cylinder extends out of the bottom end of the fixed seat and is installed with a telescopic cylinder. A jaw cylinder that cooperates with the chain-type tool magazine is installed at the output end of the telescopic cylinder, so as to clamp the tool.

[0012] The second tool pick-up and delivery mechanism includes a moving seat and a tool arm. The tool arm is installed at the top of the moving seat. A servo motor that drives the tool arm to rotate is installed inside the moving seat, and tool claws are symmetrically arranged at both ends of the tool arm to clamp the tool.

[0013] Further, the tool magazine mechanism is located on one side of the top end far from the machine tool, and the first tool pick-up and delivery mechanism is vertically arranged near the tool magazine mechanism. The second tool pick-up and delivery mechanism is horizontally installed on one side of the first tool pick-up and delivery mechanism, and the extending direction near the tool magazine mechanism forms a 90-degree angle with the tool magazine mechanism, and the end far from the tool magazine mechanism corresponds to the tool changing part of the machine tool.

[0014] Further, a first vertical bracket is provided on the support frame on one side of the top end far from the machine tool for installing the tool magazine mechanism. A second vertical bracket is provided on one side of the first tool pick-up and delivery mechanism for installing the first tool pick-up and delivery mechanism. A horizontal bracket for supporting the second tool pick-up and delivery mechanism is installed at the lower part of the second vertical bracket.

[0015] Further, guide rail screw assemblies are installed on both the second vertical bracket and the horizontal bracket to drive the first tool pick-up and delivery mechanism to approach / away from the second tool pick-up and delivery mechanism, and to make the second tool pick-up and delivery mechanism approach / away from the tool changing part of the machine tool.

[0016] Further, the guide rail screw assembly includes a guide linear rail and a ball screw. A connecting base is installed on the ball screw to drive the fixed seat and the moving seat to perform lifting and lateral displacement operations.

[0017] Further, the chain-type tool magazine is driven by a motor and a speed reducer installed at the bottom, and a set of tool claws is wound around the chain-type tool magazine for installing tools.

[0018] Further, the rotary cylinder drives the telescopic cylinder to rotate in a fixed direction, the rotation angle is 90 degrees, and the rotation direction is towards the chain-type tool magazine and the tool arm.

[0019] Further, the servo motor drives the tool arm to rotate in a fixed direction, the rotation angle is 360 degrees, and it is divided into four sections, and the rotation angle of each section is 90 degrees.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] Through the design of the first tool pick-up and delivery mechanism and the second tool pick-up and delivery mechanism, the tool magazine can be arranged away from the machine tool. The tool picking is simple, the operation speed is fast, and it has a tool preparation function. The entire tool magazine does not occupy the tool change space of the machine tool, providing a stable and efficient tool exchange mechanism for the layout of the machine tool and the tool magazine away from each other.

[0022] After the tool magazine is placed outside the machine tool, through the multi-layer arrangement of the chain-type tool magazine up and down, the first tool pick-up and delivery mechanism is used for lifting and tool pick-up and delivery operations, which can provide more tool quantities for the operation of the machine tool and meet the requirements of the gantry machining center and the aluminum alloy model for the number of tools.

[0023] At the same time, after the tool magazine is placed outside the machine tool, the size of the machine tool is reduced. The tool magazine is not installed on the machine tool, reducing the weight of the machine tool and the load on the machine tool, and is not restricted by the installation space or the installation width requirements of the use environment. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention;

[0025] Figure 2 It is a side view of the overall structure of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention;

[0026] Figure 3 It is an enlarged schematic diagram of the A structure of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention;

[0027] Figure 4 It is a schematic diagram of the initial state of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention;

[0028] Figure 5 It is the action timing of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention Figure 1 ;

[0029] Figure 6 It is the action timing of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention Figure 2 ;

[0030] Figure 7 It is the action timing of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention Figure 3 ;

[0031] Figure 8 It is the action timing of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention Figure 4 ;

[0032] Figure 9 It is the action timing of a tool pick-up and delivery mechanism away from the machine tool provided by the present invention Figure 5 ;

[0033] Figure 10The operation timing sequence of a tool fetching and delivering mechanism far from the machine tool provided by the present invention Figure 6 ;

[0034] Figure 11 The operation timing sequence of a tool fetching and delivering mechanism far from the machine tool provided by the present invention Figure 7 ;

[0035] Figure 12 The operation timing sequence of a tool fetching and delivering mechanism far from the machine tool provided by the present invention Figure 8 ;

[0036] Figure 13 The operation timing sequence of a tool fetching and delivering mechanism far from the machine tool provided by the present invention Figure 9 ;

[0037] Figure 14 The operation timing sequence of a tool fetching and delivering mechanism far from the machine tool provided by the present invention Figure 10 ;

[0038] Figure 15 The operation timing sequence of a tool fetching and delivering mechanism far from the machine tool provided by the present invention Figure 10 One;

[0039] Figure 16 The operation timing sequence of a tool fetching and delivering mechanism far from the machine tool provided by the present invention Figure 10 Two.

[0040] Legend Explanation: 1. Support frame; 11. First vertical support; 12. Second vertical support; 13. Horizontal support; 2. Tool magazine mechanism; 21. Chain-type tool magazine; 22. Water receiving tray; 23. Tool claw group; 3. First tool fetching and delivering mechanism; 31. Fixed seat; 32. Rotary cylinder; 33. Telescopic cylinder; 34. Claw cylinder; 4. Second tool fetching and delivering mechanism; 41. Moving seat; 42. Tool arm; 43. Servo motor; 44. Tool claw; 5. Guide rail screw assembly; 51. Connecting base. Specific Embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0042] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0043] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used herein in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Embodiment

[0045] As Figures 1-3 shown, the present invention provides a technical solution: a tool pick-up and delivery mechanism away from the machine tool, including a support frame 1, the support frame 1 is arranged away from the machine tool, and the support frame 1 mounts and supports a tool magazine mechanism 2, a first tool pick-up and delivery mechanism 3 and a second tool pick-up and delivery mechanism 4. A tool magazine mechanism 2, a first tool pick-up and delivery mechanism 3 and a second tool pick-up and delivery mechanism 4 are installed on the support frame 1; the tool magazine mechanism 2 includes a chain-type tool magazine 21 arranged up and down, the number of layers and the number of tools of the chain-type tool magazine 21 are designed and selected according to requirements, and a water receiving tray 22 is installed below the chain-type tool magazine 21. The chain-type tool magazine 21 is used for storing tools, and the water receiving tray 22 is used for collecting water droplets or coolant generated during tool replacement; the first tool pick-up and delivery mechanism 3 includes a fixed seat 31, a rotary cylinder 32, a telescopic cylinder 33 and a jaw cylinder 34. The rotary cylinder 32 is installed at the upper end of the fixed seat 31, and the output end of the rotary cylinder 32 extends out of the bottom end of the fixed seat 31 and is installed with a telescopic cylinder 33. A jaw cylinder 34 cooperating with the chain-type tool magazine 21 is installed at the output end of the telescopic cylinder 33, and is used for clamping the tool; the second tool pick-up and delivery mechanism 4 includes a moving seat 41 and a tool arm 42. The tool arm 42 is installed at the top of the moving seat 41, and a servo motor 43 for driving the tool arm 42 to rotate is installed inside the moving seat 41, and tool claws 44 are symmetrically arranged at both ends of the tool arm 42 for clamping the tool. Embodiment

[0046] As Figures 1-3As shown in the figure, the tool magazine mechanism 2 is located on the top side far away from the machine tool. The first tool picking and delivering mechanism 3 is vertically arranged near the tool magazine mechanism 2, so that it can directly pick up tools from the tool magazine or send tools back to the tool magazine. The second tool picking and delivering mechanism 4 is horizontally installed on one side of the first tool picking and delivering mechanism 3, and the extending direction near the tool magazine mechanism 2 forms a 90-degree angle with the tool magazine mechanism 2, enabling the two tool picking and delivering mechanisms to work together. The end far away from the tool magazine mechanism 2 corresponds to the tool changing part of the machine tool, and thus delivers the tool to the tool changing position of the machine tool or retrieves the tool from this position, and cooperates with the machine tool spindle to change the tool.

[0047] On the support frame 1, a first vertical bracket 11 is provided on the top side far away from the machine tool for installing the tool magazine mechanism 2. A second vertical bracket 12 is provided on one side of the first tool picking and delivering mechanism 3 for installing the first tool picking and delivering mechanism 3. A horizontal bracket 13 for supporting the second tool picking and delivering mechanism 4 is installed at the lower part of the second vertical bracket 12.

[0048] Guide rail screw assemblies 5 are installed on both the second vertical bracket 12 and the horizontal bracket 13 to drive the first tool picking and delivering mechanism 3 to approach / away from the second tool picking and delivering mechanism 4, and to make the second tool picking and delivering mechanism 4 approach / away from the tool changing part of the machine tool.

[0049] The guide rail screw assembly 5 includes a guide linear rail and a ball screw. The guide linear rail is responsible for supporting and guiding to ensure that the moving part moves along a predetermined path. The ball screw is responsible for converting the rotational motion into a linear motion and is driven by a motor. A connecting base 51 is installed on the ball screw to drive the fixed seat 31 and the moving seat 41 to perform lifting and lateral displacement operations.

[0050] The chain-type tool magazine 21 is driven by a motor and a speed reducer installed at the bottom. A set of tool claws 23 is wound around the chain-type tool magazine 21 for installing tools, and the number of the set of tool claws 23 is designed according to requirements.

[0051] The rotary cylinder 32 drives the telescopic cylinder 33 to perform a directional rotation, with a rotation angle of 90 degrees and a rotation direction towards the chain-type tool magazine 21 and the tool arm 42.

[0052] The servo motor 43 drives the tool arm 42 to perform a directional rotation, with a rotation angle of 360 degrees and divided into four sections, each section having a rotation angle of 90 degrees.

[0053] The working principle of the present invention is as Figures 4-16 shown, and the specific steps are as follows:

[0054] 1) Through Figure 4 given, first adjust the first tool picking and delivering mechanism 3 to be flush with the chain-type tool magazine 21. At this position, the origin of the guide rail screw assembly 5 of the first tool picking and delivering mechanism 3 is set, and then the whole is leveled by the anchor bolts to make the first tool picking and delivering mechanism 3 flush with the second tool picking and delivering mechanism 4;

[0055] It should be added that the first tool pick-up and delivery mechanism 3 can be lifted by the guide rail screw assembly 5 to select the upper and lower chain-type tool magazines 21;

[0056] 2) As given by Figure 5 the telescopic cylinder 33 drives the jaw cylinder 34 to extend towards the tool jaw group 23, and the jaw cylinder 34 abuts against the tool A in the tool jaw group 23 for clamping (when taking the tool from the lower layer chain-type tool magazine 21, the downward movement of the first tool pick-up and delivery mechanism 3 is added, and then the telescopic cylinder 33 is extended);

[0057] 3) As given by Figure 6 the telescopic cylinder 33 drives the jaw cylinder 34 to retract to take out the tool A, and the rotary cylinder 32 drives the jaw cylinder 34 to rotate 90 degrees (when taking the tool from the lower layer chain-type tool magazine 21, after the telescopic cylinder 33 retracts, the upward movement of the first tool pick-up and delivery mechanism 3 is added);

[0058] 4) As given by Figure 7 the telescopic cylinder 33 drives the jaw cylinder 34 towards the tool jaw 44, pushes the tool A into the tool jaw 44 and retracts;

[0059] 5) As given by Figure 8 the guide rail screw assembly 5 drives the moving seat 41 to move horizontally towards the tool changing part of the machine tool, and the servo motor 43 drives the tool arm 42 to rotate 90 degrees towards the machine tool, so that the tool A corresponds to the machine tool spindle;

[0060] 6) As given by Figure 9 the machine tool spindle takes the tool A, and the servo motor 43 drives the tool arm 42 to rotate 90 degrees (the above steps 1-6 are the tool taking action process when the spindle has no tool);

[0061] 7) As given by Figure 10 restore to the initial state, the rotary cylinder 32 drives the jaw cylinder 34 to rotate 90 degrees towards the chain-type tool magazine 21, and through the operation of the chain-type tool magazine 21, the tool B corresponds to the jaw cylinder 34;

[0062] 8) As given by Figure 11 here the spindle has the tool A, repeat steps 3-5, and the servo motor 43 drives the tool arm 42 to rotate 180 degrees, so that the empty tool jaw 44 on the tool arm 42 corresponds to the machine tool spindle;

[0063] 9) As given by Figure 12 the spindle returns the tool A to the empty tool jaw 44 on the tool arm 42, and the servo motor 43 drives the tool arm 42 to rotate 180 degrees, so that the tool B corresponds to the machine tool spindle;

[0064] 10) As given by Figure 13 the spindle takes the tool B, and the servo motor 43 drives the tool arm 42 to rotate 90 degrees, driving the tool A towards the jaw cylinder 34;

[0065] 11) Through Figure 14 as shown, the guide screw assembly 5 drives the moving seat 41 to move to the jaw cylinder 34, and the telescopic cylinder 33 extends to clamp the A tool.

[0066] 11) Through Figure 15 as shown, the telescopic cylinder 33 retracts, and the rotary cylinder 32 drives the jaw cylinder 34 to rotate 90 degrees towards the chain-type tool magazine 21. Through the operation of the chain-type tool magazine 21, the tool position of the A tool corresponds to the jaw cylinder 34.

[0067] 12) Through Figure 16 as shown, the telescopic cylinder 33 drives the jaw cylinder 34 to extend towards the tool jaw group 23 to return the A tool to the A tool position, and the telescopic cylinder 33 retracts or the re-preparation process of the tool is as above.

[0068] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tool taking and feeding mechanism remote from a machine tool, comprising a support frame (1), wherein the support frame (1) is arranged remote from the machine tool, and is characterized in that: The support frame (1) is provided with a tool magazine mechanism (2), a first tool taking and delivering mechanism (3) and a second tool taking and delivering mechanism (4); The tool magazine mechanism (2) comprises a chain tool magazine (21) arranged up and down, and a water receiving tray (22) is installed below each of the chain tool magazines (21); The first tool taking and delivering mechanism (3) comprises a fixed seat (31), a rotating cylinder (32), a telescopic cylinder (33) and a clamping claw cylinder (34); the rotating cylinder (32) is mounted on the upper end of the fixed seat (31); the output end of the rotating cylinder (32) extends out of the bottom end of the fixed seat (31) and is mounted with the telescopic cylinder (33); the output end of the telescopic cylinder (33) is mounted with a clamping claw cylinder (34) that cooperates with the chain tool magazine (21) to clamp the tool; The second knife picking and delivering mechanism (4) comprises a moving seat (41) and a knife arm (42), wherein the knife arm (42) is mounted on the top of the moving seat (41), a servo motor (43) is mounted inside the moving seat (41) to drive the knife arm (42) to rotate, and knife claws (44) are symmetrically arranged at both ends of the knife arm (42) to clamp the knife; The tool magazine mechanism (2) is located at a side of the top end away from the machine tool, and the first tool picking and feeding mechanism (3) is vertically arranged near the tool magazine mechanism (2), and the second tool picking and feeding mechanism (4) is horizontally installed on one side of the first tool picking and feeding mechanism (3), and the extension direction near the tool magazine mechanism (2) forms an angle of 90 degrees with the tool magazine mechanism (2), and the end away from the tool magazine mechanism (2) corresponds to the tool changing part of the machine tool; A first vertical bracket (11) is provided on the support frame (1) at a top side away from the machine tool for mounting a tool magazine mechanism (2); a second vertical bracket (12) is provided on one side of the first tool picking and feeding mechanism (3) for mounting the first tool picking and feeding mechanism (3); a transverse bracket (13) for supporting the second tool picking and feeding mechanism (4) is installed at the lower end of the second vertical bracket (12); The second vertical bracket (12) and the horizontal bracket (13) are both equipped with a guide rail screw assembly (5) for driving the first tool picking and feeding mechanism (3) to approach / move away from the second tool picking and feeding mechanism (4), and making the second tool picking and feeding mechanism (4) approach / move away from the tool changing part of the machine tool; The guide rail and screw assembly (5) comprises a guiding linear guide rail and a ball screw, and a connecting base (51) is installed on the ball screw for driving the fixed seat (31) and the movable seat (41) to perform lifting and lateral displacement operations.

2. The tool taking and feeding mechanism far away from the machine tool according to claim 1, characterized in that: The chain tool magazine (21) is driven by a motor and a reducer installed at the bottom, and a knife claw group (23) is surrounded on the chain tool magazine (21) for installing knives.

3. The tool taking and feeding mechanism far away from the machine tool according to claim 1, characterized in that: The rotating cylinder (32) drives the telescopic cylinder (33) to perform directional rotation, the rotation angle is 90 degrees and the rotation direction is the chain tool magazine (21) and the tool arm (42).

4. The tool taking and feeding mechanism far away from the machine tool according to claim 1, characterized in that: The servo motor (43) drives the knife arm (42) to perform directional rotation, the rotation angle is 360 degrees and is divided into four sections, each section having a rotation angle of 90 degrees.

Images