Tool changing device for spare tool magazine

Abstract

The utility model relates to the technical field of numerical control machine tool cutter management, in particular to a standby tool changer tool changing device which comprises a driving motor set, the bottom of the driving motor set is connected with a cutter head, the bottom of the cutter head is connected with an annular convex ring, and a plurality of sets of tightly-distributed fixed tool rests are installed at the bottom of the cutter head along the edge. Limiting plates are arranged at the positions, corresponding to the fixed knife rest, of the bottom of the knife disc in a bilateral symmetry mode, and an infrared position receiver is installed on the side, facing the annular convex ring, of the fixed knife rest. In addition, if the position of the tool rest is deviated in the process of fixing the tool rest, a worker can know that the position of the tool rest is deviated in the first time, the failure of tool changing is avoided, and the workload and the scrap amount are reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool management technology, specifically a spare tool magazine tool changing device. Background Technology

[0002] To reduce the adverse impact of manual tool changing on machine tool utilization, an effective approach is to establish a spare tool magazine inside the flexible manufacturing system and outside the machine tool, storing an appropriate amount of spare tools corresponding to those used by the machine tool inside the system in the external spare tool magazine.

[0003] When a tool in any machine tool within the flexible manufacturing system malfunctions and cannot meet processing requirements, the flexible manufacturing control system immediately calls upon a robot to replace the faulty tool with a new spare tool of the same model from an external tool magazine.

[0004] The existing spare tool magazine tool changing device uses multiple sets of fixed tool holders to fix the tools. However, during long-term use, the fixed tool holders will wear down, causing the tools to be unstable. The current method uses bolts for fixing, but the bolts will rust and easily block the bolt holes. Replacing them also requires external tools, which is not convenient. Furthermore, if the fixed tool holders shift during the process, the staff cannot detect it in time, which will lead to tool changing failure, increasing workload and scrap.

[0005] Therefore, it is particularly important to design a backup tool magazine tool changing device to overcome the above-mentioned technical defects and improve overall practicality. Utility Model Content

[0006] The purpose of this invention is to provide a spare tool magazine tool changing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A spare tool magazine tool changing device includes a drive motor assembly, a tool disc connected to the bottom of the drive motor assembly, an annular convex ring connected to the bottom of the tool disc, multiple sets of closely distributed fixed tool holders installed on the bottom of the tool disc along its edge, limit plates symmetrically arranged on the bottom of the tool disc and corresponding to the positions of the fixed tool holders, an infrared position receiver installed on the side of the fixed tool holder facing the annular convex ring, and multiple sets of infrared position transmitters used in conjunction with the infrared position receivers arranged on the outer side of the annular convex ring, the tool disc and the fixed tool holders being connected by a detachable snap-fit ​​mechanism;

[0009] The detachable snap-fit ​​mechanism includes a connecting pin fixed to the top of the fixed tool holder. Multiple sets of quick-connect rods are arranged in a matrix on the outer side and near the top of the connecting pin. A compression spring is connected to the middle section of each quick-connect rod. A through-hole slot is opened inside the quick-connect rod at the end away from the connecting pin. Multiple sets of connecting post sleeves are arranged at the top and edge of the tool disc. Multiple sets of limiting holes corresponding to the positions of the quick-connect rods are opened inside the connecting post sleeves. A fixing pin is inserted and pulled into the through-hole slot.

[0010] As a preferred embodiment of this utility model, the cutter head is provided with a controller, wherein the controller is connected to the infrared position receiver and the infrared position transmitter by wires, and the connection is an electrical connection.

[0011] As a preferred embodiment of this utility model, the fixed tool holder and the tool disc are designed to be detachable.

[0012] As a preferred embodiment of this utility model, multiple sets of cross-shaped grooves are provided on the top of the cutter head and at the position corresponding to the connecting sleeve.

[0013] As a preferred embodiment of this utility model, the connection between the quick-connect plug and the limiting hole is a snap-fit ​​connection.

[0014] As a preferred embodiment of this utility model, the top of the cutter head is provided with multiple sets of keyhole holes for the bottom end of the fixing pins.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this utility model, a spare tool magazine tool changing device is provided. The fixed tool holder can be replaced without the need for external tools such as screwdrivers by using a detachable snap-fit ​​mechanism. This is more convenient and eliminates concerns about bolt corrosion and blockage of screw holes. In addition, if the fixed tool holder shifts position during the process, the staff can be notified immediately to avoid tool replacement failure and reduce workload and scrap. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a structural diagram of the detachable snap-fit ​​mechanism of this utility model;

[0019] Figure 3 This is a structural diagram of the bottom of the cutter head of this utility model.

[0020] In the diagram: 1. Drive motor assembly; 2. Cutter head; 201. Annular convex ring; 3. Fixed cutter post; 4. Limiting plate; 5. Infrared position receiver; 6. Infrared position transmitter; 7. Detachable snap-fit ​​mechanism; 701. Connecting pin; 702. Quick-connect rod; 703. Compression spring; 704. Through hole slot; 705. Connecting sleeve; 706. Limiting hole; 707. Fixed pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model 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 utility model more thorough and complete.

[0023] 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 be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0026] A spare tool magazine tool changing device includes a drive motor assembly 1, a tool disc 2 connected to the bottom of the drive motor assembly 1, an annular convex ring 201 connected to the bottom of the tool disc 2, multiple sets of closely distributed fixed tool holders 3 installed on the bottom of the tool disc 2 along its edge, and limit plates 4 symmetrically arranged on the left and right sides of the bottom of the tool disc 2 corresponding to the positions of the fixed tool holders 3. An infrared position receiver 5 is installed on the side of the fixed tool holder 3 facing the annular convex ring 201, and multiple sets of infrared position transmitters 6 are arranged on the outside of the annular convex ring 201 to cooperate with the infrared position receiver 5. When the fixed tool holder 3 shifts position during the process, the operator can know immediately to avoid tool changing failure, reduce workload and scrap. The tool disc 2 and the fixed tool holder 3 are connected by a detachable snap-fit ​​mechanism 7.

[0027] The cutter head 2 is equipped with a controller, which is connected to the infrared position receiver 5 and the infrared position transmitter 6 via wires. The connection is electrical. The fixed cutter holder 3 and the cutter head 2 are designed to be detachable.

[0028] In this embodiment, please refer to Figure 2 The detachable snap-fit ​​mechanism 7 includes a connecting post 701 fixed to the top of the fixed tool holder 3. Multiple quick-connect rods 702 arranged in a matrix are provided on the outer side of the connecting post 701 and near the top. A compression spring 703 is connected to the middle section of the quick-connect rod 702. A through hole slot 704 is opened at the end of the quick-connect rod 702 away from the connecting post 701. Multiple connecting post sleeves 705 are provided on the top of the tool holder 2 and at the edge. Multiple limiting holes 706 corresponding to the positions of the quick-connect rods 702 are opened inside the connecting post sleeves 705. A fixed pin 707 is inserted and pulled into the through hole slot 704.

[0029] The top of the cutter head 2 and the corresponding position of the connecting sleeve 705 are provided with multiple sets of cross-shaped grooves. The quick-connect rod 702 and the limiting hole 706 are connected by snap-fit. The top of the cutter head 2 is provided with multiple sets of locking pins 707 with keyholes inserted at the bottom.

[0030] The working process of this utility model is as follows: When it is necessary to replace and install a damaged fixed tool holder 3, the connecting pin 701 at the top of the fixed tool holder 3 is inserted into the connecting pin sleeve 705 from the bottom of the tool disc 2. Under the action of the compression spring 703, when the four sets of quick-connecting rods 702 reach the limiting hole 706, they will extend to the outside of the limiting hole 706 and be fixed under the elastic force of the compression spring 703. Then, multiple sets of fixing pins 707 are passed through the through hole slot 704 and inserted into the keyhole to complete the fixing. The replacement is fast and convenient. Replacing the fixed tool holder without the aid of external tools such as screwdrivers is more convenient and eliminates concerns about bolt corrosion and blocked screw holes. During installation, the fixed tool holder 3 should be positioned between the two sets of limiting plates 4 to restrict its position and reduce the probability of loosening. Furthermore, the cooperation between the infrared position receiver 5 and the infrared position transmitter 6 allows staff to be notified immediately if the fixed tool holder 3 shifts position during the process, preventing tool replacement failures and reducing workload and scrap.

[0031] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spare tool magazine tool changing device, comprising a drive motor assembly (1), characterized in that: The bottom of the drive motor assembly (1) is connected to a cutter head (2), and the bottom of the cutter head (2) is connected to an annular convex ring (201). Multiple sets of closely distributed fixed cutter holders (3) are installed on the bottom of the cutter head (2) and along its edge. Limiting plates (4) are symmetrically arranged on the left and right sides of the bottom of the cutter head (2) and at the positions corresponding to the fixed cutter holders (3). An infrared position receiver (5) is installed on the side of the fixed cutter holder (3) facing the annular convex ring (201). Multiple sets of infrared position transmitters (6) that cooperate with the infrared position receiver (5) are arranged on the outside of the annular convex ring (201). The cutter head (2) and the fixed cutter holder (3) are connected by a detachable snap-fit ​​mechanism (7). The detachable snap-fit ​​mechanism (7) includes a connecting pin (701) fixed to the top of the fixed tool holder (3). Multiple quick-connect rods (702) are arranged in a matrix on the outer side and near the top of the connecting pin (701). A compression spring (703) is connected to the middle section of the quick-connect rod (702). A through hole slot (704) is opened at the inner end of the quick-connect rod (702) away from the connecting pin (701). Multiple connecting sleeves (705) are arranged at the top and edge of the tool disc (2). Multiple limiting holes (706) corresponding to the positions of the quick-connect rods (702) are opened inside the connecting sleeves (705). A fixed pin (707) is inserted and pulled into the through hole slot (704).

2. The tool changer for a spare tool magazine according to claim 1, characterized in that: The cutter head (2) is equipped with a controller, which is connected to the infrared position receiver (5) and the infrared position transmitter (6) by wires, and the connection is electrical.

3. The tool changer for a spare tool magazine according to claim 1, characterized in that: The fixed tool holder (3) and the tool disc (2) are designed to be detachable.

4. The tool changer for a spare tool magazine according to claim 1, characterized in that: Multiple sets of cross grooves are provided on the top of the cutter head (2) and at the position corresponding to the connecting sleeve (705).

5. The tool changer for a spare tool magazine according to claim 1, characterized in that: The connection between the quick-connect plug (702) and the limiting hole (706) is a snap-fit ​​connection.

6. The tool changer for a spare tool magazine according to claim 1, characterized in that: The top of the cutter head (2) has multiple sets of keyholes for fixing pins (707) to be inserted at the bottom.

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