Double-spindle, double-tool-magazine and double-channel combined machining device

Abstract

The invention provides a double-spindle, double-tool-magazine and double-channel combined machining device, and relates to the technical field of combined machine tools, the double-spindle, double-tool-magazine and double-channel combined machining device comprises a machining body, the machining body comprises a casting base, a portal frame and at least two machining modules installed on the portal frame, and a first included angle is formed between the central axis of a tool magazine part and the central axis of a spindle assembly; and a second included angle is formed between the tool mounting surface of the tool magazine part and the central axis of the tool magazine part. Each independent machining module can conduct tool changing operation at any position and does not depend on limitation of the position of a traditional tool magazine, and compared with a single-service-type large tool magazine, all parts of the tool magazine do not interfere with one another; the structure compactness is good, the tool changing efficiency is high, and stability and reliability are achieved; and compared with traditional multi-station machining, universality is higher, and same / different parts can be machined.

Description

Technical Field

[0001] This invention relates to the field of composite machine tool technology, specifically to a dual-spindle, dual-tool magazine, dual-channel composite machining device. Background Technology

[0002] In the field of machine tool processing, multi-station machining has become an important development direction to improve production efficiency. At present, there are two main technical solutions for tool changing systems of this type of device: one is "completely independent", which means that each machining channel (spindle) is equipped with an independent tool magazine and tool changing robot, forming two completely physically separated tool changing systems; the other is "single service", which means that a large tool magazine and a tool changing robot are configured, and the robot moves to different positions to alternately provide services for the two spindles.

[0003] The aforementioned existing technical solutions all have significant drawbacks. For the "completely independent" approach, the structure is complex, manufacturing costs are high, and the lack of coordination between the two systems easily leads to bloated equipment and conflicting actions. For the "single-service" approach, tool-changing efficiency is limited by the movement and waiting time of a single robotic arm, creating a significant efficiency bottleneck, and concentrating system reliability on a single module carries high risk. Neither of these solutions achieves an ideal balance between structural compactness, tool-changing efficiency, cost, and reliability, thus hindering the full realization of the performance of dual-channel composite machining equipment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a dual-spindle, dual-tool magazine, dual-channel composite machining device, which solves the problems of deficiencies in the design of tool magazines and tool-changing robots in existing multi-station machining tools.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A dual-spindle, dual-tool magazine, dual-channel composite machining device includes: a machining body, which includes: a casting base, a gantry frame, and at least two machining modules mounted on the gantry frame. It adopts discrete system module control, and at least two machining modules can perform machining independently to meet the needs of high-efficiency production and processing.

[0007] Each of the aforementioned machining modules includes: a Z-axis frame, a spindle assembly, a tool magazine assembly, and a Z-axis drive assembly, which corresponds to an independent tool magazine structure design, with each machining module corresponding to a set of tool magazine assemblies.

[0008] The Z-axis frame is slidably mounted on the gantry in the horizontal direction, the spindle assembly is slidably mounted on the Z-axis frame in the vertical direction, and the spindle assembly is driven to slide relative to the Z-axis frame by the Z-axis drive assembly. The tool magazine is fixedly mounted on the gantry by the mounting bracket. A first included angle is provided between the central axis of the tool magazine and the central axis of the spindle assembly, and a second included angle is provided between the tool mounting surface of the tool magazine and the central axis of the tool magazine. The first included angle is less than 90°, and the setting of the second included angle is such that at least one of the tools mounted on the tool mounting surface of the tool magazine is vertically distributed.

[0009] Preferred options also include: A tool-changing robotic arm fixedly mounted on a gantry crane; The tool changing robot forms a tool changing area on the front side below the gantry, and each of the machining modules can slide along the gantry to the tool changing area to perform tool changing operations; The processing module is slidably coupled to the gantry frame, and a first drive structure is installed between the processing module and the gantry frame.

[0010] Preferably, the casting base includes: The base has a recessed center to form a processing area, and processing tables corresponding to the processing modules are installed in the processing area. The base has two upward-protruding sections on both sides fixedly fitted with heightening blocks, and the gantry frame is mounted across the two heightening blocks.

[0011] Preferably, the processing table is slidably connected to the base, and a second driving structure is installed between the processing table and the base.

[0012] Preferably, the gantry frame and the heightening block are slidably coupled, and a third drive structure is installed between the gantry frame and the heightening block.

[0013] Preferably, the processing module is slidably coupled to the gantry, and a fourth drive structure is installed between each processing module and the gantry.

[0014] Preferably, the tool magazine includes: a fixed base fixedly connected to the mounting bracket, a rotating power component fixedly installed inside the fixed base, a tool magazine platform rotatably installed at the end of the fixed base, and the tool magazine platform being fixedly connected to the output end of the rotating power component.

[0015] Preferably, the tool mounting surface is composed of several planes, each plane being an isosceles trapezoid, and each tool mounting surface corresponds to a standard tool mounting position.

[0016] Preferably, the processing module is provided in two sets, and the two sets of processing modules are arranged in opposite directions.

[0017] Preferably, it also includes: an outer sheet metal part, the processing body is fixedly installed on the inner side of the outer sheet metal part, and at least one set of automatic doors is provided on the side of the outer sheet metal part.

[0018] This invention provides a dual-spindle, dual-tool magazine, dual-channel composite machining device. It has the following advantages: 1. This invention establishes a first angle of less than 90° between the central axis of the tool magazine and the central axis of the spindle assembly, and a second angle between the tool mounting surface of the tool magazine and the central axis of the tool magazine. This second angle ensures that at least one tool mounted on the tool mounting surface of the tool magazine is vertically distributed. Thus, each independent machining module can perform tool changing operations at any position, without relying on the positional limitations of traditional tool magazines. Furthermore, compared to large "single-service" tool magazines, there is no interference between its various parts. It boasts advantages such as compact structure, high tool changing efficiency, and stable reliability. Moreover, compared to traditional multi-station machining, it has greater versatility, capable of machining both identical and different parts.

[0019] 2. In this invention, the tool changing robot forms a tool changing area on the front side below the gantry. Each machining module can slide along the gantry to the tool changing area to perform tool changing operations. This structural design allows the dual-spindle, dual-tool magazine, dual-channel composite machining device to complete tool changing operations for all machining modules with only one tool changing robot. Compared to the "completely independent" tool magazine and tool changing robot design, this structure is more compact, has lower costs, and meets the production and processing needs of small and medium-sized enterprises for batches of small workpieces. Attached Figure Description

[0020] Figure 1 This is a model diagram of a dual-spindle, dual-tool magazine, dual-channel composite machining device proposed in this invention; Figure 2 This is a perspective view of a dual-spindle, dual-tool magazine, dual-channel composite machining device proposed in this invention; Figure 3 This is a front view of a dual-spindle, dual-tool magazine, dual-channel composite machining device proposed in this invention; Figure 4 This is a top view of a dual-spindle, dual-tool magazine, dual-channel composite machining device proposed in this invention; Figure 5 This is a three-dimensional schematic diagram of the machining body of a dual-spindle, dual-tool magazine, dual-channel composite machining device proposed in this invention; Figure 6 This is a diagram showing the positions of the tool magazine and spindle in a dual-spindle, dual-tool magazine, dual-channel composite machining device proposed in this invention. Figure 7 This diagram illustrates the positions of the tool magazine and spindle in a dual-spindle, dual-tool magazine, dual-channel composite machining device proposed in this invention.

[0021] Among them, 1. peripheral sheet metal parts; 1a. automatic door; 2. processing body; 201. casting base; 201a. base; 201b. heightening block; 202. gantry frame; 203. processing module; 203a. Z-axis frame; 203b. Z-axis drive assembly; 203c. spindle assembly; 203d. mounting bracket; 203e. tool magazine assembly; 204. first drive structure; 205. tool changing robot; 3. tool magazine table; 4. fixed base; 5. rotating power component; a. tool mounting surface. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1: like Figures 1-7 As shown, this embodiment of the invention provides a composite machine tool, specifically a dual-spindle, dual-tool magazine, dual-channel composite machining device, which includes: a machining body 2, the machining body 2 including: a casting base 201, a gantry 202 and at least two machining modules 203 installed on the gantry 202, adopting discrete system module control, at least two machining modules can perform machining independently, meeting the needs of high-efficiency production and processing.

[0024] Each machining module 203 includes: a Z-axis frame 203a, a spindle assembly 203c, a tool magazine assembly 203e, and a Z-axis drive assembly 203b, which corresponds to an independent tool magazine structure design. Each machining module 203 corresponds to a set of tool magazine assemblies 203e. This structure design ensures that while one machining module 203 is changing tools, another machining module 203 can independently perform machining operations, further improving machining efficiency.

[0025] Specifically, the Z-axis frame 203a is slidably mounted on the gantry 202 in the horizontal direction, and the spindle assembly 203c is slidably mounted on the Z-axis frame 203a in the vertical direction. The bottom end of the spindle assembly 203c is designed with a standard tool mounting structure, and the tool is disassembled by a pneumatic push rod. The spindle assembly 203c is driven to slide relative to the Z-axis frame 203a by the Z-axis drive assembly 203b, which in turn drives the spindle assembly 203c to slide up and down relative to the Z-axis frame 203a. The tool magazine 203e is fixedly mounted on the gantry 202 by the mounting bracket 203d. The tool magazine 203e is generally located on the side of the spindle assembly 203c away from the gantry 202 to ensure that the tool magazine 203e has sufficient space and does not cause motion interference to the up and down movement of the spindle assembly 203c.

[0026] A first angle is set between the central axis of the tool magazine 203e and the central axis of the spindle assembly 203c. The first angle is less than 90°, for example, it is designed to be between 63°, 70°, and 45°-80°, so that the front end of the tool magazine 203e always faces downward. A second angle is set between the tool mounting surface a of the tool magazine 203e and the central axis of the tool magazine 203e. The setting of the second angle ensures that at least one of the tools mounted on the tool mounting surface a of the tool magazine 203e is vertically distributed. When designing the second angle, the first angle needs to be fully considered so that at least one of the tools mounted on the tool mounting surface a of the tool magazine 203e is vertically distributed, for example, the bottommost tool is vertically distributed. Based on the rotation of the tool magazine 203e itself, this position can be controlled to rotate. The tool mounted at the bottom of the spindle assembly 203c is vertically set and is parallel to the bottommost tool. At this time, the tool can be changed by the tool changing robot 205.

[0027] It is understandable that a first angle of less than 90° is set between the central axis of the tool magazine 203e and the central axis of the spindle assembly 203c, and a second angle is set between the tool mounting surface a of the tool magazine 203e and the central axis of the tool magazine 203e. The setting of the second angle ensures that at least one tool mounted on the tool mounting surface a of the tool magazine 203e is vertically distributed. In this way, each independent machining module 203 can perform tool changing operations at any position, without relying on the position limitations of traditional tool magazines. Moreover, compared with "single-service" large tool magazines, there is no interference between its parts. It has the advantages of good structural compactness, high tool changing efficiency, and stability and reliability. Furthermore, compared with traditional multi-station machining, it has greater versatility and can machine both the same and different parts.

[0028] like Figure 5As shown, there are two machining modules 203, which are located in a straight groove area on the gantry 202. Specifically, the machining modules 203 are slidably engaged with the gantry 202, and a first drive structure 204 is installed between the machining modules 203 and the gantry 202. The first drive structure 204 is used to drive the machining modules 203 to move and switch positions. This satisfies the Y-axis movement requirements during machining and can also control the machining modules 203 to move to the tool changing area for tool changing.

[0029] The tool changing robot 205 is fixedly mounted on the gantry 202. The tool changing robot 205 is used to perform tool changing operations on the machining module 203 located in the tool changing area. The tool changing robot 205 is used to exchange two tools that are distributed at the same height and interval.

[0030] Understandably, the tool changing robot 205 forms a tool changing area on the front side below the gantry 202. Each machining module 203 can slide along the gantry 202 to the tool changing area to perform tool changing operations. This structural design allows the dual-spindle, dual-tool magazine, dual-channel composite machining device to complete tool changing operations for all machining modules 203 with only one tool changing robot 205. Compared to the "completely independent" tool magazine and tool changing robot design, this structure is more compact and has a lower cost, meeting the production and processing needs of small and medium-sized enterprises for batches of small workpieces.

[0031] In each machining module 203, the first drive structure 204 drives the machining module 203 to slide along the sliding guide direction of the gantry 202, so that it enters the tool changing area; the Z-axis drive component 203b drives the spindle component 203c to slide up and down relative to the Z-axis frame 203a, adjusting the height of the tool installed at the bottom of the spindle component 203c. When the tool changing conditions are met, the tool changing robot 205 moves to perform a tool changing operation on the machining module 203.

[0032] In one embodiment, the casting base 201 includes a base 201a and a raising block 201b.

[0033] The base 201a is recessed in the middle to form a processing area. A processing table corresponding to the processing module 203 is installed in the processing area. For example, two parallel processing tables are designed to correspond to two processing bodies 2 distributed to the left and right. It can be understood that the same / different workpieces are installed on each processing table, and the same / different programs are used to operate the processing body 2 so that the processing body 2 can independently perform processing operations on the workpieces on its corresponding processing table.

[0034] Both sides of the base 201a protruding upwards are fixedly equipped with lifting blocks 201b, and the gantry 202 is installed across the two lifting blocks 201b.

[0035] The machining area formed by the downward indentation in the middle of the base 201a is designed for stability, and a height-increasing block 201b is installed. While meeting the actual machining height requirements, it can reduce the height of the gantry 202 and increase the machining accuracy.

[0036] In one embodiment, the processing table is slidably connected to the base 201a, and a second driving structure is installed between the processing table and the base 201a.

[0037] It is understandable that the machining table is slidably connected to the base 201a, and a second drive structure is installed between the machining table and the base 201a. The second drive structure manipulates the machining table to slide, which makes it easier for the user to clamp the workpiece and increases the degree of freedom of workpiece processing. It can also cooperate with other moving structures to complete the processing of complex workpieces.

[0038] In one embodiment, the gantry 202 is slidably engaged with the heightening block 201b, and a third drive structure is installed between the gantry 202 and the heightening block 201b.

[0039] It is understandable that the gantry 202 and the heightening block 201b are slidably engaged, and a third drive structure is installed between the gantry 202 and the heightening block 201b. The third drive structure manipulates the gantry 202 to slide, increasing the workpiece machining freedom and cooperating with other moving structures to complete the machining of complex workpieces.

[0040] In one embodiment, the processing module 203 is slidably engaged with the gantry 202, and a fourth drive structure is installed between each processing module 203 and the gantry 202.

[0041] It is understandable that the processing module 203 is slidably engaged with the gantry 202, and a fourth drive structure is installed between each processing module 203 and the gantry 202. The fourth drive structure manipulates the processing module 203 to slide, increasing the degree of freedom of workpiece processing, and cooperates with other moving structures to complete the processing of complex workpieces.

[0042] It is worth noting that the first drive structure, the second drive structure, the third drive structure, and the fourth drive structure can all be linear motion modules composed of a lead screw and nut structure; some of these structures are disclosed in the utility model patent "A Gantry Machine Tool" with authorization announcement CN 223029167 U.

[0043] In one embodiment, the tool magazine component 203e includes: a fixed base 4 fixedly connected to the mounting bracket 203d, a rotating power component 5 fixedly installed inside the fixed base 4, a tool magazine platform 3 rotatably installed at the end of the fixed base 4, and the tool magazine platform 3 fixedly connected to the output end of the rotating power component 5.

[0044] It is understandable that the output end of the rotary power component 5 rotates, driving the tool magazine 3 fixed thereto to rotate, so that the tool magazine 3 rotates relative to the fixed base 4; the rotary power component 5 can be a stepper motor, which can precisely control one of the tools installed on the tool magazine 3 to be vertically downward.

[0045] In one embodiment, the tool mounting surface a is composed of several planes, each of which is an isosceles trapezoid, and each tool mounting surface a corresponds to a standard tool mounting position.

[0046] It is understandable that the tool mounting surface a is a polygonal three-dimensional surface structure, which is more suitable for fitting a connector for clamping and fixing the tool compared to a conical arc surface shape.

[0047] In one embodiment, two sets of machining modules 203 are provided. The two machining modules 203 have a common movable area in the middle position of the gantry 202, which constitutes the tool changing area. The two sets of machining modules 203 are arranged in opposite directions. This ensures that the tool magazine 203e has enough space to avoid interfering with the operation of the spindle assembly 203c. The two tool magazines 203e are also designed to be opposite to each other to avoid collisions.

[0048] In one embodiment, an outer sheet metal part 1 is also designed, and the processing body 2 is fixedly installed on the inner side of the outer sheet metal part 1. At least one set of automatic doors 1a is provided on the side of the outer sheet metal part 1.

[0049] The outer sheet metal part 1 is the workpiece for installation, which works in conjunction with the laser-sensing automatic door 1a to ensure safety during use.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-spindle, dual-tool magazine, dual-channel composite machining device, comprising: The processing body (2) includes: a casting base (201), a gantry (202), and at least two processing modules (203) mounted on the gantry (202). The feature is that each of the machining modules (203) includes: a Z-axis frame (203a), a spindle assembly (203c), a tool magazine assembly (203e), and a Z-axis drive assembly (203b). The Z-axis frame (203a) is slidably mounted on the gantry (202) in the horizontal direction, the spindle assembly (203c) is slidably mounted on the Z-axis frame (203a) in the vertical direction, and the spindle assembly (203c) is driven to slide relative to the Z-axis frame (203a) by the Z-axis drive assembly (203b), and the tool magazine (203e) is fixedly mounted on the gantry (202) by the mounting bracket (203d); A first included angle is provided between the central axis of the tool magazine component (203e) and the central axis of the spindle assembly (203c), and a second included angle is provided between the tool mounting surface (a) of the tool magazine component (203e) and the central axis of the tool magazine component (203e). The first included angle is less than 90°, and the setting of the second included angle is such that at least one of the tools mounted on the tool mounting surface (a) of the tool magazine (203e) is vertically distributed.

2. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 1, characterized in that, Also includes: A tool changing robot (205) is fixedly installed on the gantry (202); The tool changing robot (205) forms a tool changing area on the front side below the gantry (202), and each of the machining modules (203) can slide along the gantry (202) to the tool changing area to perform tool changing operations; The processing module (203) is slidably engaged with the gantry (202), and a first drive structure (204) is installed between the processing module (203) and the gantry (202).

3. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 1, characterized in that, The casting base (201) includes: The base (201a) has a downward recessed center to form a processing area, and a processing table corresponding to the processing module (203) is installed in the processing area; The base (201a) has two upward-protruding parts on both sides of the base (201a) with the heightening blocks (201b) fixedly installed. The gantry (202) is installed across the two heightening blocks (201b).

4. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 3, characterized in that: The processing table is slidably connected to the base (201a), and a second driving structure is installed between the processing table and the base (201a).

5. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 3, characterized in that: The gantry (202) is slidably engaged with the heightening block (201b), and a third drive structure is installed between the gantry (202) and the heightening block (201b).

6. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 1, characterized in that: The processing module (203) is slidably engaged with the gantry (202), and a fourth drive structure is installed between each processing module (203) and the gantry (202).

7. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 1, characterized in that, The tool magazine component (203e) includes: a fixed base (4) fixedly connected to the mounting bracket (203d), a rotating power component (5) fixedly installed inside the fixed base (4), a tool magazine platform (3) rotatably installed at the end of the fixed base (4), and the tool magazine platform (3) fixedly connected to the output end of the rotating power component (5).

8. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 1, characterized in that: The tool mounting surface (a) is composed of several planes, each of which is an isosceles trapezoid. Each tool mounting surface (a) corresponds to a standard tool mounting position.

9. The dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 1, characterized in that: The processing module (203) is provided in two sets, and the two sets of processing modules (203) are arranged in opposite directions.

10. A dual-spindle, dual-tool magazine, dual-channel composite machining device according to claim 1, characterized in that, Also includes: The outer sheet metal part (1) and the processing body (2) are fixedly installed on the inner side of the outer sheet metal part (1). At least one set of automatic doors (1a) is provided on the side of the outer sheet metal part (1).

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