WO2021036266A1 - Novel automatic tool changing device - Google Patents

Abstract

An automatic tool changing device, comprising a tool rest assembly (2401) for placing a tool (2202), a Y-direction driving unit (2402) for driving the tool rest assembly (2401) to translate in the Y direction and a tool taking mechanism (2403) for attracting the tool. The tool taking mechanism (2403) is a magnetic attraction assembly provided with a magnet, the tool rest assembly (2401) is pushed by the Y-direction driving unit (2402) to translate in the Y direction, and a tool to be replaced is attracted by means of the magnetic force of the magnetic attraction assembly. Automatic replacement of machining tools can be achieved under the condition that the automatic tool changing device is not stopped, and the tool replacement process is automatic and rapid.

Description

New automatic tool changer Technical field

The utility model belongs to the technical field of automation equipment, and particularly relates to an automatic tool changing device suitable for machining processes.

Background technique

During the machining of the workpiece, after the tool has processed a certain number of workpieces, the tool will wear out, and the quality of the processed product will not meet the requirements. At this time, the tool needs to be replaced. Currently, manual replacement is generally used. If the tool is changed in a manual way, the machine needs to be stopped. One is to increase labor and increase the cost; the other is that the stop will affect the continuity of production and reduce the production efficiency, and it is not conducive to the continuous and automated production of the workpiece processing process. .

Therefore, it is necessary to study an automated tool changer to overcome the above shortcomings.

Utility model content

The main technical problem solved by the utility model is to provide a new type of automatic tool changing device. Through the design of the tool holder assembly and the tool removal mechanism, the automatic replacement of processing tools can be realized without stopping the machine. The tool changing process is automatic, Fast.

In order to solve the above technical problems, a technical solution adopted by the present utility model is:

The utility model provides a new type of automatic tool changer, which includes a tool holder assembly for placing knives, a Y-direction drive unit for driving the tool holder assembly to translate along the Y direction, and a knife taking mechanism for sucking knives;

The knife taking mechanism is a magnetic attraction assembly equipped with a magnet. The tool holder assembly is pushed to translate along the Y direction by the Y-direction drive unit, and the tool to be replaced is attracted by the magnetic force of the magnetic attraction assembly.

In order to solve the above technical problems, a further technical solution adopted by the present invention is that the magnetic attraction assembly includes a suction block, and a magnet is installed inside the suction block; the suction block has a groove matching the cutter.

Furthermore, the magnetic attraction assembly includes a support plate capable of supporting the cutter, the support plate is installed below the suction block, and the end of the support plate extends from the suction block, and the support The plate can support the tool.

Furthermore, the tool holder assembly includes a tool holder for placing tools, a ratchet slide rail and a ratchet assembly matched with the ratchet slide rail. The ratchet component is installed on the tool holder, so The tool holder is arranged in parallel with the ratchet slide rail, and the Y-direction drive unit can drive the tool holder assembly to translate along the Y direction, passing through the ratchet teeth of the ratchet slide rail and the ratchet teeth of the tool holder assembly The engagement drives the tool holder to move in the Y direction.

Further, the ratchet assembly includes a ratchet block, a ratchet block mounting seat and a reset elastic member, the ratchet block mounting seat is mounted on the tool holder, and the ratchet block is mounted on the ratchet block A mounting seat, one end of the reset elastic member is pressed against the ratchet block and the other end is pressed against the ratchet block mounting seat.

Furthermore, the tool holder has a plurality of tool inserting grooves arranged evenly at intervals, and the tool can be inserted into the tool inserting grooves.

Furthermore, the tool holder includes an upper part of the tool holder and a lower part of the tool holder, a gap is provided between the upper part of the tool holder and the lower part of the tool holder, and the tool taking mechanism is exposed in the gap by clamping the tool The section to achieve the grasping of the tool.

Furthermore, the new type automatic tool changer includes a first workbench and a second workbench, the tool taking mechanism is installed on the first workbench, and the tool holder assembly and the Y-direction drive unit are both installed于The second workbench.

Furthermore, the new automatic tool changer also includes an X-direction drive unit capable of driving the first worktable to move in the X-direction.

The beneficial effects of the utility model are:

The tool changing device of the present invention includes a tool holder assembly for placing tools, a Y-direction drive unit for driving the tool holder assembly to translate, and a tool-taking mechanism for sucking the tools. The tool holder is driven to a proper position by the Y-direction drive unit, and then The tool placed in the tool holder assembly is sucked by the magnetic force of the magnetic assembly, and then combined with other mechanisms, the tool is sent to the position where the tool needs to be replaced for tool change, which can realize the tool replacement, which is automatic, convenient and fast, which is conducive to processing. Automation and continuity of the process;

Furthermore, the knife taking mechanism of the present invention may also include a support plate capable of supporting the knife, because in the present invention, the assembly is sucked by the magnetic force of the magnetic attraction assembly, and the knife may fall when subjected to external force, that is, When changing the tool, downward force may be generated, and the support plate just plays the role of upward support to prevent the tool from falling.

The above description is only an overview of the technical solution of the present utility model. In order to have a clearer understanding of the technical means of the present utility model and can be implemented in accordance with the content of the specification, the following is a detailed description of the preferred embodiment of the present utility model with accompanying drawings. Rear.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the tool changing device of the present invention;

Figure 2 is a schematic diagram of the structure of the knife taking mechanism of the present invention;

Figure 3 is one of the structural schematic diagrams of the tool holder assembly of the present invention;

Figure 4 is the second structural diagram of the tool holder assembly of the present invention;

The parts in the drawings are marked as follows:

Tool 2202, knife holder assembly 2401, knife holder 24011, knife slot 240111, ratchet slide rail 24012, ratchet assembly 24013, ratchet block 24014, ratchet block mounting seat 24015, knife holder upper part 24016, knife holder lower 24017, The gap 24018, the Y-direction drive unit 2402, the knife taking mechanism 2403, the suction block 24031, the groove 240311, the support plate 24032, the first work table 2404, and the second work table 2405.

detailed description

Specific embodiments of the present invention will be described below through specific specific examples. Those skilled in the art can easily understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope of the present invention.

Example: A new type of automatic tool change device, as shown in Figures 1 to 3, defines the translation direction of the tool post as the Y direction, including a tool post assembly 2401 for placing a tool 2202, and drives the tool post assembly along Y A Y-direction driving unit 2402 that moves in a horizontal direction and a knife taking mechanism 2403 for sucking a knife;

The knife taking mechanism is a magnetic attraction assembly equipped with a magnet. The tool holder assembly is pushed to translate along the Y direction by the Y-direction drive unit, and the tool to be replaced is attracted by the magnetic force of the magnetic attraction assembly.

The magnetic attraction assembly includes a suction block 24031, and a magnet (not shown in the figure) is installed inside the suction block; the suction block has a groove 240311 matching the cutter.

The magnetic attraction assembly includes a support plate 24032 capable of supporting the tool. The support plate is installed below the suction block, and the end of the support plate extends from the suction block. The support plate can support The tool forms a supporting role.

The tool holder assembly 2401 includes a tool holder 24011 for placing tools, a ratchet slide rail 24012, and a ratchet assembly 24013 matched with the ratchet slide rail. The ratchet component is installed on the tool holder, so The tool holder is arranged in parallel with the ratchet slide rail, and the Y-direction drive unit can drive the tool holder assembly to translate along the Y direction, passing through the ratchet teeth of the ratchet slide rail and the ratchet teeth of the tool holder assembly The engagement drives the tool holder to move in the Y direction. In this embodiment, the Y-direction drive unit is an air cylinder.

In this embodiment, the tooth pitch of the ratchet teeth of the ratchet slide rail matches the pitch between the adjacent tool inserting grooves provided on the tool holder.

In this embodiment, the ratchet assembly includes a ratchet block 24014, a ratchet block mounting seat 24015, and a reset elastic member (not shown in the figure). The ratchet block mounting seat is mounted on the tool holder, and the ratchet The block is mounted on the ratchet block mounting seat, and one end of the reset elastic member is pressed against the ratchet block and the other end is pressed against the ratchet block mounting base.

In this embodiment, the reset elastic member is a reset spring, but it is not limited to this.

The tool holder has a plurality of tool inserting grooves 240111 arranged evenly at intervals, and the tool can be inserted into the tool inserting grooves. In its own embodiment, the tool holder has magnetism, and the tool is detachably fixed to the tool holder through magnetism.

The tool holder includes an upper part 24016 of a tool holder and a lower part 24017 of a tool holder. A gap 24018 is provided between the upper part of the tool holder and the lower part of the tool holder. That section realizes the gripping of the tool.

The new automatic tool changer includes a first workbench 2404 and a second workbench 2405. The tool picking mechanism is installed on the first workbench, and the tool holder assembly and the Y-direction drive unit are both installed on the The second workbench.

The new automatic tool changer also includes an X-direction drive unit capable of driving the first worktable to translate along the X-direction. For example, the X-direction drive unit is a servo motor and screw drive structure.

The working principle and working process of the utility model are as follows:

The working principle of the tool change process: For example, when this device is installed in a grinder, the grinder can discard the used tools after a certain number of workpieces are processed, and the X-direction drive unit drives the first table and the tool removal mechanism in place, and at the same time The Y-direction drive unit drives the tool holder assembly to the corresponding position, the tool-taking mechanism sucks the tool, and then moves to the grinding device of the grinder under the action of the X-direction drive unit, through the automatic pneumatic loading and unloading function of the grinding device spindle (installation of the tool The spindle is a spindle with a tool pneumatic loading and unloading function, such as a pneumatic spindle, which is an existing technology, so it will not be repeated). The tool can be replaced by grabbing the unused tool, which is automatic, convenient and fast, and at this time, Due to the supporting plate, it will form a supporting effect, avoiding the problem of the tool falling when the spindle is changing the tool;

Among them, during the tool change process, since the Y-direction drive unit (air cylinder in this embodiment) and the ratchet assembly are fixedly installed on the tool holder, the action of the cylinder will pull the ratchet assembly to move in the Y direction and climb over a ratchet of the ratchet track. The inner side of the ratchet will resist the ratchet block, and then the ratchet assembly, the cylinder and the tool holder will move forward in Y to ensure that the slot where the unused tool is placed can always be aligned with the tool removal mechanism in the X direction Position: After all the tools in this tool post have been changed, an alarm will be issued, prompting the operator to return the tool post to its position and place an unused tool, and then repeat the above process.

The above are only the embodiments of the present utility model, and do not limit the scope of the present utility model. Any equivalent structure made using the content of the utility model description and drawings, or directly or indirectly applied to other related technical fields, The same reason is included in the scope of patent protection of this utility model.

Claims (8)

A new type of automatic tool changer, which is characterized in that it comprises a tool holder assembly (2401) for placing the tool (2202), a Y-direction drive unit (2402) for driving the tool holder assembly to translate along the Y-direction, and a tool for sucking Knife taking mechanism (2403); The knife taking mechanism is a magnetic attraction assembly equipped with a magnet. The tool holder assembly is pushed to translate along the Y direction by the Y-direction drive unit, and the tool to be replaced is attracted by the magnetic force of the magnetic attraction assembly. The new automatic tool changer according to claim 1, characterized in that: the magnetic suction assembly includes a suction block (24031), and a magnet is installed inside the suction block; the suction block has a matching function with the tool The groove (240311). The new automatic tool changer according to claim 2, characterized in that: the magnetic attraction assembly includes a support plate (24032) capable of supporting the tool, and the support plate is installed under the suction block, and The end of the support plate protrudes from the suction block, and the support plate can support the cutter. The new automatic tool changer according to claim 1, characterized in that: the tool holder assembly (2401) includes a tool holder (24011) for placing tools, a ratchet slide (24012) and the ratchet A ratchet assembly (24013) matched with a slide rail, the ratchet assembly is installed on the tool holder, the tool holder is arranged in parallel with the ratchet slide rail, and the Y-direction drive unit can drive the tool holder The component translates in the Y direction, and the tool holder is driven to translate in the Y direction by the ratchet teeth of the ratchet slide rail and the ratchet teeth of the tool holder assembly. The new automatic tool changer according to claim 4, characterized in that: the ratchet assembly includes a ratchet block (24014), a ratchet block mounting seat (24015) and a reset elastic member, the ratchet block mounting seat Installed on the tool holder, the ratchet block is installed on the ratchet block mounting seat, one end of the reset elastic member is pressed against the ratchet block and the other end is pressed against the ratchet block mounting seat. The new automatic tool changer according to claim 4, characterized in that: the tool holder has a plurality of slotting slots (240111) arranged evenly at intervals, and the tool can be inserted into the slotting slots. 7. The new automatic tool changer according to claim 6, characterized in that: the tool holder includes an upper part (24016) and a lower part (24017) of the tool holder, and the upper part of the tool holder and the lower part of the tool holder are different from each other. There is a gap (24018) therebetween, and the knife taking mechanism realizes the grabbing of the tool by clamping the section of the tool exposed in the gap. The new type automatic tool changing device according to claim 1, characterized in that: the new type automatic tool changing device comprises a first worktable (2404) and a second worktable (2405), and the tool taking mechanism is installed on the The first workbench, the tool holder assembly and the Y-direction drive unit are all installed on the second workbench. The new type automatic tool changer according to claim 8, characterized in that: the new type automatic tool changer further comprises an X-direction driving unit capable of driving the first worktable to translate along the X-direction.

Images