CN202240634U - A new type of automatic tool loading and unloading device - Google Patents

Abstract

The utility model discloses a novel automatic cutter handling device, its characterized in that: the tool changer comprises a spindle box, a driving shaft is arranged in the spindle box, an accommodating cavity used for connecting and fixing a tool is arranged at one end of the driving shaft, a push-pull assembly capable of pulling the tool into the accommodating cavity or pushing the tool out of the accommodating cavity is arranged in the spindle box, and a driving device for driving the push-pull assembly to move is connected to the spindle box. The utility model aims at overcoming the weak point among the prior art, provide a simple structure, the manufacturing is with the running cost low, quick reliable's automatic tool handling device for numerical control glass processing machinery.

Description

A new type of automatic tool loading and unloading device

technical field

The utility model relates to a novel automatic tool loading and unloading device.

Background technique

A tool loading and unloading device is required on the spindle of the CNC glass processing machine for loading, unloading and changing the processing tool. At present, the tool loading and unloading device used on CNC metal processing machine tools uses an oil cylinder to push the mandrel in the middle to release the tool, and a butterfly spring broach to complete the loading and unloading of the processing tool. However, such a device is not suitable for glass processing machinery. Because first, the cutting tool for processing glass is cooled by water, not the cutting tool for metal processing machine tool is cooled by oil. Second, glass processing machinery widely uses pneumatic mechanisms, while metal processing machine tools generally do not have pneumatic mechanisms. Therefore, if pneumatic loading and unloading tools are used, it will not only reduce the mechanical configuration and operating costs, but also quickly and reliably replace the tools and improve production efficiency.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a simple structure, low manufacturing and operating costs, fast and reliable automatic tool loading and unloading device for CNC glass processing machinery.

In order to achieve the above object, the utility model adopts the following scheme:

A new type of automatic tool loading and unloading device is characterized in that: it includes a spindle box, a drive shaft is provided in the spindle box, and an accommodating cavity for connecting a fixed tool is provided on one end of the drive shaft. The spindle box is provided with a push-pull assembly that can pull the tool into the accommodating cavity or push the tool out of the accommodating cavity, and a driving device for driving the push-pull assembly is connected to the spindle box.

A new type of automatic tool loading and unloading device as described above is characterized in that the push-pull assembly includes a push-pull rod, a cavity is provided at one end of the push-pull rod, and a connecting part is provided at one end of the tool, and the connecting part Set in the cavity, a plurality of steel balls are arranged on one end of the push-pull rod, the steel balls are arranged on the outer surface of the connecting part, and a push-pull seat is arranged on the other end of the push-pull rod , the push-pull seat is connected with the driving device, and a coil spring is sleeved on the push-pull rod. When compressed, one end of the coil spring presses against the push-pull seat, and the other end of the coil spring presses to drive On the limit step in the shaft.

A new type of automatic tool loading and unloading device as described above is characterized in that the driving device includes a cylinder base, a knife release cylinder is connected to the cylinder base, and a push rod is arranged on the cylinder shaft of the knife release cylinder. head, the push rod head is connected with the push-pull assembly.

A novel automatic tool loading and unloading device as described above is characterized in that the drive shaft is connected in the headstock through a bearing.

A new type of automatic tool loading and unloading device as described above is characterized in that the drive shaft is provided with a tapered surface on the inner wall of one end of the accommodating cavity, and the blade of the tool is a cone that matches the tapered surface. shape.

A novel automatic tool loading and unloading device as described above is characterized in that the tool is fixedly connected to the drive shaft through a pin.

In summary, the utility model has the beneficial effects relative to the prior art as follows:

1. Since the cylinder is used as the power to release the knife, the compressed air source configured by other mechanisms of the machine can be used together without adding fuel tanks, oil pumps, oil cylinders, oil pipes, etc., which greatly reduces the manufacturing cost and operating cost;

2. Due to the use of pneumatic as the power source, the system structure is simple, easy to maintain, and the loading and unloading of tools is fast and reliable.

Description of drawings

Fig. 1 is the schematic diagram of the utility model.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

A new type of automatic tool loading and unloading device as shown in Figure 1 includes a spindle box 1, a drive shaft 2 is provided in the spindle box 1, and a drive shaft 2 for connecting a fixed tool 3 is provided on one end of the drive shaft 2. The accommodating cavity 4 is provided with a push-pull assembly 5 that can pull the tool 3 into the accommodating cavity 4 or push the tool 3 out of the accommodating cavity 4 in the spindle box 1, and a drive is connected to the spindle box 1 The drive device 6 for the action of the push-pull assembly 5 . In the utility model, a first cavity connected to the accommodating cavity 4 and a second cavity for setting a push-pull assembly are provided in the drive shaft 2, wherein the diameter of the first cavity is larger than the diameter of the second cavity.

The push-pull assembly 5 described in the utility model includes a push-pull rod 51, a cavity 52 is provided on one end of the push-pull rod 51, the diameter of the accommodating cavity 4 is larger than the diameter of the cavity 52, and the One end of the cutter 3 is provided with a connecting portion 31, and the connecting portion 31 is arranged in the cavity 52, and a plurality of steel balls 53 are arranged on one end of the push-pull rod 51, and the steel balls 53 are arranged on the On the outer surface of the connecting part 31, a push-pull seat 54 is provided on the other end of the push-pull rod 51, the push-pull seat 54 is connected with the driving device 6, and a coil spring 55 is sleeved on the push-pull rod 51 When compressed, one end of the coil spring 55 presses against the push-pull seat 54 , and the other end of the coil spring 55 presses against the limiting step 21 in the drive shaft 2 . There is a gap between the push-pull rod 51 and the drive shaft 2 .

The driving device 6 described in the utility model comprises a cylinder block 61, on which a loosening cylinder 62 is connected, and a push rod head 63 is arranged on the cylinder shaft of the said loosening cylinder 62, the said The push rod head 63 is connected with the push-pull assembly 5 .

The drive shaft 2 described in the utility model is connected in the described headstock 1 through a bearing 7 . The drive shaft 2 is provided with a conical surface on the inner wall of one end of the accommodating cavity 4, and the blade of the cutter 3 is a conical body matching the conical surface. The cutter 3 is fixedly connected to the drive shaft 2 through a pin 8 .

When the machine control system issues a command to release the knife, the cylinder shaft of the knife release cylinder 62 is pushed downward, pushing the push-pull rod 51 to move downward, and at the same time compressing the coil spring 55, and the steel ball 53 is in the first cavity with a larger size at the lower end of the drive shaft 2 Move outwards, the cutter 3 loosens and hangs on the cutter rest, and when the machine control system sends a drawing command, the cylinder shaft of the cutter release cylinder 62 is retracted, the coil spring 55 is extended, the push-pull rod 51 moves upward, and the steel ball 53 is on the push-pull rod. Driven by 51, it enters the smaller second cavity of the drive shaft 2 and moves toward the axis. The cutter 3 is tightened on the tapered surface of the drive shaft 2, and the power is transmitted through six pins 8 evenly distributed on the cutter 3. The tool 3 rotates when the spindle motor rotates. This device uses a cylinder as the power to release the knife, and can jointly use the compressed air source configured by other mechanisms of the machine without adding fuel tanks, oil pumps, oil cylinders, oil pipes, etc., which greatly reduces the manufacturing cost and operating cost. The device automatically releases the broach , Simple structure, easy maintenance, quick and reliable tool loading and unloading.

Claims (6)

1. A novel automatic tool loading and unloading device, characterized in that: it comprises a spindle box (1), in which a drive shaft (2) is provided in the spindle box (1), and on one end of the drive shaft (2) There is a housing cavity (4) for connecting the fixed tool (3), and a tool (3) can be pulled into the housing cavity (4) or the tool (3) can be pushed out in the spindle box (1). The push-pull assembly (5) of the accommodating chamber (4) is connected to the headstock (1) with a driving device (6) for driving the push-pull assembly (5). 2. A new type of automatic tool loading and unloading device according to claim 1, characterized in that the push-pull assembly (5) comprises a push-pull rod (51), and one end of the push-pull rod (51) is provided with a cavity ( 52), one end of the cutter (3) is provided with a connection portion (31), the connection portion (31) is arranged in the cavity (52), and one end of the push-pull rod (51) is provided with There are a plurality of steel balls (53), the steel balls (53) are arranged on the outer surface of the connecting part (31), and a push-pull seat (54) is arranged on the other end of the push-pull rod (51), the said The push-pull seat (54) is connected with the driving device (6), and a coil spring (55) is sleeved on the push-pull rod (51). When compressed, one end of the coil spring (55) presses against the push-pull seat (54), the other end of the helical spring (55) presses against the limit step (21) in the drive shaft (2). 3. A new type of automatic tool loading and unloading device according to claim 1, characterized in that said driving device (6) comprises a cylinder block (61), and a knife release cylinder ( 62), a push rod head (63) is arranged on the cylinder shaft of the knife loosening cylinder (62), and the push rod head (63) is connected with the push-pull assembly (5). 4. A new type of automatic tool loading and unloading device according to claim 1, characterized in that the drive shaft (2) is connected in the headstock (1) through a bearing (7). 5. A new type of automatic tool loading and unloading device according to claim 1, characterized in that the drive shaft (2) is provided with a conical surface on the inner wall of one end of the accommodating cavity (4), and the tool ( 3) The knife blade is a conical body that cooperates with the conical surface. 6. A new type of automatic tool loading and unloading device according to claim 1, characterized in that said tool (3) is fixedly connected to said drive shaft (2) through a pin (8).

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