Movable tool magazine

Abstract

The utility model provides a movable tool magazine, and belongs to the technical field of machine tool equipment. The problem that the operation stability of an existing tool magazine is affected by cooling liquid is solved. The movable tool magazine comprises a base, a linear guide rail arranged in the front-back direction is fixed to the upper end of the base, a sliding seat capable of sliding along the linear guide rail is installed on the linear guide rail, a tool magazine body is fixed to the upper end of the sliding seat, a tool chain capable of circularly rotating front and back is horizontally arranged on the tool magazine body, and a plurality of clamping jaws are arranged on the tool chain. The clamping jaw comprises a clamping head used for clamping the tool, a horizontally-arranged water receiving plate is fixedly connected to the outer side face of the sliding base, a water retaining protruding edge protruding upwards is arranged on the edge of the water receiving plate, and the vertical projection of the clamping head located at the rear end of the tool magazine body on the plane where the water receiving plate is located is located in the water receiving plate. According to the movable tool magazine, the influence of cooling liquid on operation of the tool magazine is reduced, and the operation stability of the tool magazine is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of machine tool equipment technology and relates to a mobile tool magazine. Background Technology

[0002] Five-axis CNC machine tools achieve machining of complex parts such as turning, milling, and drilling through the coordinated movement of three linear axes and two rotary axes. With its high flexibility, high precision, and high integration, it has unique advantages in aerospace, automotive and other fields. As an essential auxiliary functional component for high-efficiency machining of five-axis machine tools, the tool magazine not only requires a large tool storage capacity, but also needs to achieve accurate and fast tool changing to meet the needs of high-efficiency production.

[0003] For example, a chain-type tool magazine disclosed in Chinese patent literature [Application No.: CN202110492559.0; Publication No.: CN113118839A] includes a tool magazine support, a guide support device, a tool magazine chain, a chain drive device, and a tool clamping device. The guide support device is mounted on the tool magazine support. The tool clamping device includes several grippers evenly distributed on the tool magazine chain. The tool magazine chain acts on the guide support device and can rotate along the guide support device under the action of the chain drive device. A tool magazine push-out and retraction device is provided at the lower end of the tool magazine support, which can drive the tool magazine support to push forward or retract backward. The tool magazine push-out and retraction device includes a base, a linear guide rail, a lead screw, a lead screw nut seat, a lead screw support, a servo motor, and a support pad.

[0004] In use, the chain-type tool magazine is installed in the corresponding tool magazine position on the machine tool. During tool change, the servo motor starts and sequentially moves the tool magazine support into the machine tool via the lead screw, lead screw nut, and support pad, so that the front end of the tool magazine support enters the machine tool. Then, the chain drive device drives the tool magazine chain to move, rotating the empty chuck to the tool position on the machine tool. The machine tool's Z-axis moves downward, causing the tool to be inserted into the empty chuck and clamped by it. The machine tool's Z-axis releases the tool and then moves upward, leaving the tool on the chuck. Then, the tool magazine chain moves again, removing the replaced tool from the machine tool and simultaneously moving the required tool into the machine tool. Then, the machine tool's Z-axis moves to remove the tool from the chuck. Finally, the tool magazine support retracts, causing the front end of the tool magazine support to detach from the machine tool, completing the tool change.

[0005] During tool changing, the tool support moves forward, offsetting itself slightly from the base. At this point, the rear end of the base is not obstructed by the tool support. During machining, the machine tool is typically sprayed with coolant to lower its temperature, leaving coolant residue. During tool changing, to move the required tool into the machine, the tool removed from the machine is transferred outside. When this tool is moved to the rear end of the tool support, coolant drips onto the linear guide rail at the rear end of the base, damaging its lubricating film. Prolonged coolant retention can also cause oxidation, leading to rust on the linear guide rail. This increases friction and affects the efficiency and accuracy of tool changing. Utility Model Content

[0006] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a mobile tool magazine, which solves the technical problem of how to reduce the impact of coolant on the operation of the tool magazine.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A mobile tool magazine includes a base, with a linear guide rail fixed to the upper end of the base in a front-to-back direction. A sliding seat that can slide along the linear guide rail is mounted on the linear guide rail. A tool magazine body is fixed to the upper end of the sliding seat. A tool chain that can rotate back and forth is horizontally arranged on the tool magazine body. A plurality of grippers are arranged on the tool chain. Each gripper includes a chuck for holding a tool. The tool magazine body is characterized in that a horizontally arranged water receiving plate is fixedly connected to the outer side of the sliding seat. The edge of the water receiving plate has an upwardly protruding water-blocking flange. The vertical projection of the chuck located at the rear end of the tool magazine body onto the plane of the water receiving plate is located within the water receiving plate.

[0009] During tool changing, the sliding seat slides forward along the linear guide, and the front end of the tool magazine body enters the machine tool. The sliding seat and the base are slightly offset, and the rear end of the linear guide protrudes from the rear end of the sliding seat, while the front end and middle part of the linear guide are blocked by the sliding seat. After the tool removed from the machine tool is fixed on the chuck at the front end of the tool magazine body, the tool chain rotates, transporting the tool removed from the machine tool to the rear end of the tool magazine body, and the required tool to the front end of the tool magazine body. When the tool removed from the machine tool is transported above the rear end of the linear guide, because the vertical projection of the chuck located at the rear end of the tool magazine body onto the plane of the coolant receiving plate is within the coolant receiving plate (i.e., the coolant receiving plate has a water-receiving function), the coolant dripping from the tool is caught by the coolant receiving plate and will not drip onto the linear guide. This prevents the rear end of the linear guide from being contaminated by coolant, reduces the impact of coolant on the operation of the tool magazine, and helps ensure the stability of the tool magazine operation.

[0010] In the aforementioned mobile tool magazine, the water receiving plate is U-shaped and arranged around the rear end and both sides of the sliding seat.

[0011] This increases the area of ​​the water receiving plate, thus increasing the water capacity and reducing the possibility of coolant overflowing from the plate. This reduces the impact of coolant on the tool magazine's operation and helps ensure its stability.

[0012] In the aforementioned mobile tool magazine, the vertical projection of the chuck located in the middle of the tool magazine body onto the plane of the water receiving plate is also located within the water receiving plate.

[0013] During tool changing, the front end of the tool magazine body extends into the machine tool. The front end of the coolant plate can rest against the machine tool housing or also extend into the machine tool. As the tool moves backward from the front end of the tool magazine body, if the tool has not yet been removed from the machine tool, coolant drips into the machine tool. After the tool is removed from the machine tool, the coolant plate catches the coolant dripping from the tool, thus preventing the coolant dripping from the tool from affecting the operation of the tool magazine and helping to ensure the stability of the tool magazine operation.

[0014] In the aforementioned mobile tool magazine, the rear end of the sliding seat is fixedly connected to a fixed frame located above the water receiving plate. The fixed frame is L-shaped and includes a horizontal part and a vertical part connected to the rear end of the horizontal part. The front end of the horizontal part is fixedly connected to the sliding seat, and the lower end of the vertical part is fixedly connected to the water receiving plate.

[0015] The installation of the fixing bracket increases the stability of the water receiving plate structure, thereby reducing the possibility of coolant overflow due to deformation of the water receiving plate, reducing the impact of coolant on tool magazine operation, and helping to ensure the stability of tool magazine operation.

[0016] In the aforementioned mobile tool magazine, a drain hole is provided at the front end of the water receiving plate, and a removable plug is installed in the drain hole. The plug can be a rubber stopper or a bolt. This facilitates the drainage of coolant from the water receiving plate.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The U-shaped water receiving plate serves to both block and collect water, preventing coolant from dripping onto the linear guide rail during the tool change and backward transport of the tool removed from the machine tool. This reduces the impact of coolant on the tool magazine's operation, thus helping to ensure the stability of the tool magazine's operation. Attached Figure Description

[0019] Figure 1 This is a front view of the mobile tool magazine.

[0020] Figure 2 This is a top view of the mobile tool magazine.

[0021] Figure 3 yes Figure 2 A partial sectional view along the AA direction.

[0022] In the diagram, 1 is the base; 2 is the linear guide rail; 3 is the sliding seat; 4 is the drive motor; 5 is the tool magazine body; 6 is the drive sprocket; 7 is the driven sprocket; 8 is the tool changer motor; 9 is the tool chain; 10 is the gripper; 10a is the chuck; 11 is the water receiving plate; 11a is the water-blocking flange; 11b is the drain hole; 12 is the fixing frame; 12a is the horizontal part; 12b is the vertical part; and 13 is the plug. Detailed Implementation

[0023] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0024] like Figure 1 and Figure 2 As shown, a mobile tool magazine includes a base 1. A linear guide rail 2, arranged in a front-to-back direction, is fixed to the upper end of the base 1. Two linear guide rails 2 are arranged side-by-side in a left-to-right direction. A sliding seat 3, which can slide along the linear guide rail 2, is mounted on the linear guide rail 2. A sliding block is fixed to the lower end of the sliding seat 3, and the linear guide rail 2 is embedded in the groove of the sliding block. A lead screw and nut assembly is provided between the base 1 and the sliding seat 3. The lead screw and nut assembly includes a lead screw and a nut. The lead screw is arranged parallel to the linear guide rails 2 and located between the two linear guide rails 2. The front and rear ends of the lead screw pass through the front and rear ends of the base 1, respectively. The rear end of the lead screw passes through the base 1 and is connected to a drive motor 4. The housing of the drive motor 4 is fixedly connected to the base 1, and the rotating shaft of the drive motor 4 is fixedly connected to the lead screw. The nut is fixedly connected to the sliding seat 3 and is sleeved on the lead screw, forming a threaded connection with the lead screw. When the drive motor 4 is working, the lead screw rotates, and the lead screw drives the nut to move back and forth through the threaded connection structure, thereby causing the sliding seat 3 to move back and forth along the linear guide rail 2.

[0025] like Figure 1 and Figure 2 As shown, a tool magazine body 5 is fixed to the upper end of the sliding seat 3. A drive sprocket 6 is provided at the front end of the tool magazine body 5, and a driven sprocket 7 is provided at the rear end of the tool magazine body 5. A tool changer motor 8 is connected below the drive sprocket 6. A tool chain 9 is connected between the drive sprocket 6 and the driven sprocket 7. The tool chain 9 is horizontally arranged, and the tool changer motor 8 can drive the tool chain 9 to rotate back and forth in a cycle when it is working. Several grippers 10 are provided on the tool chain 9 along the length direction of the tool chain 9. The grippers 10 include chucks 10a for gripping tools, and the chucks 10a are arranged outward.

[0026] like Figure 1 and Figure 2 As shown, a horizontally arranged water receiving plate 11 is fixedly connected to the outer surface of the sliding seat 3, combined with... Figure 3As shown, the water receiving plate 11 has an upwardly protruding water-blocking flange 11a at its edge. The water receiving plate 11 is U-shaped and surrounds the rear end and both sides of the sliding seat 3. The water-blocking flange 11a is arranged in a closed ring along the edge of the water receiving plate 11. The water-blocking flange 11a includes an inner U-shaped section, an outer U-shaped section, and two end sections connecting the inner and outer U-shaped sections. The inner U-shaped section is close to the outer side of the sliding seat 3, and the outer U-shaped section is located outside the inner U-shaped section. The inner U-shaped section is fixedly connected to the sliding seat 3 by screws. A sealing gasket is provided between the screw and the inner U-shaped section. The screw passes through the sealing gasket and the inner U-shaped section and is threaded into the sliding seat 3. To facilitate screw installation, the height of the inner U-shaped section is greater than the height of the outer U-shaped section. The vertical projection of the collet 10a located at the rear end of the tool magazine body 5 onto the plane of the water receiving plate 11 is located within the water receiving plate 11. The vertical projection of the collet 10a located in the middle of the tool magazine body 5 onto the plane of the water receiving plate 11 is also located within the water receiving plate 11. A fixing bracket 12 is fixedly connected to the rear end of the sliding seat 3, located above the water receiving plate 11, and below the tool magazine body 5. The fixing bracket 12 is L-shaped and includes a horizontal part 12a and a vertical part 12b connected to the rear end of the horizontal part 12a. The front end of the horizontal part 12a is fixedly connected to the sliding seat 3, and the lower end of the vertical part 12b is fixedly connected to the water receiving plate 11. A drain hole 11b is provided at the front end of the water receiving plate 11, and a removable plug 13 is provided in the drain hole 11b. The plug 13 can be a rubber plug or a bolt. The rubber plug is interference-fitted with the drain hole 11b, and the bolt is provided with a sealing ring and threadedly engaged with the drain hole 11b. There are two drain holes 11b, located on the left and right sides of the sliding seat 3 respectively.

[0027] During tool changing, the sliding seat 3 slides forward along the linear guide rail 2, and the front end of the tool magazine body 5 enters the machine tool. The front end of the water receiving plate 11 can rest against the machine tool housing or also extend into the machine tool. The sliding seat 3 and the base 1 are slightly offset, and the rear end of the linear guide rail 2 protrudes from the rear end of the sliding seat 3. The front end and middle part of the linear guide rail 2 are blocked by the sliding seat 3. After the tool removed from the machine tool is fixed on the chuck 10 at the front end of the tool magazine body 5, the tool chain 9 rotates, conveying the tool removed from the machine tool to the rear end of the tool magazine body 5, and the required tool to the front end of the tool magazine body 5. The water receiving plate 11 has the functions of blocking and receiving water. When the tool is not removed from the machine tool, the coolant drips into the machine tool. When the tool is removed from the machine tool, the water receiving plate 11 catches the coolant dripping from the tool. The coolant dripping from the tool is caught by the water receiving plate 11 and will not drip onto the linear guide 2, so that the linear guide 2 will not be contaminated by the coolant, reducing the impact of the coolant on the operation of the tool magazine and helping to ensure the stability of the tool magazine operation.

[0028] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A mobile tool magazine, comprising a base (1), wherein a linear guide rail (2) arranged in a front-rear direction is fixed at the upper end of the base (1), a sliding seat (3) slidable along the linear guide rail (2) is mounted on the linear guide rail (2), a tool magazine body (5) is fixed at the upper end of the sliding seat (3), a tool chain (9) rotatable in a front-rear cycle is horizontally arranged on the tool magazine body (5), and a plurality of grippers (10) are arranged on the tool chain (9), wherein the grippers (10) include chucks (10a) for gripping tools, characterized in that, A horizontally arranged water receiving plate (11) is fixedly connected to the outer side of the sliding seat (3). The edge of the water receiving plate (11) has an upwardly protruding water-blocking flange (11a). The vertical projection of the chuck (10a) located at the rear end of the tool magazine body (5) onto the plane of the water receiving plate (11) is located within the water receiving plate (11).

2. The mobile tool magazine according to claim 1, characterized in that, The water receiving plate (11) is U-shaped and is arranged around the rear end and both sides of the sliding seat (3).

3. The mobile tool magazine according to claim 2, characterized in that, The vertical projection of the collet (10a) located in the middle of the tool magazine body (5) onto the plane of the water receiving plate (11) is also located within the water receiving plate (11).

4. The movable tool magazine according to any one of claims 1-3, characterized in that, The rear end of the sliding seat (3) is fixedly connected to a fixed frame (12) located above the water receiving plate (11). The fixed frame (12) is L-shaped and includes a horizontal part (12a) and a vertical part (12b) connected to the rear end of the horizontal part (12a). The front end of the horizontal part (12a) is fixedly connected to the sliding seat (3), and the lower end of the vertical part (12b) is fixedly connected to the water receiving plate (11).

5. The movable tool magazine according to any one of claims 1-3, characterized in that, The front end of the water receiving plate (11) is provided with a drain hole (11b), and a removable plug (13) is provided in the drain hole (11b).

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