TW201822943A - Opening/closing device of protective door of machine tool capable of preventing generation of vibration and noise for achieving a practical effect of smooth change of tools - Google Patents

Abstract

An opening/closing device of a protective door of a machine tool is provided, wherein the protective door that comprises a door panel is arranged between a machining spindle and a tool change device of the machine tool. The tool change device is driven by a drive source to perform a linear reciprocal displacement so that the tool change device may pass through the protective door to carry out a tool change operation. A transmission assembly is arranged between the tool change device and the door panel of the protective door. The transmission assembly comprises an elastic element provided on the door panel of the protective door for pulling to close. A guide member having a cam surface and a roller abutting against the cam surface are provided between the tool change device and the door panel of the protective door. When the tool change device is in movement for operation, a pulling effect of the elastic element is used to keep the roller abutting against the cam surface of the guide member in order to ensure the cam surface of the guide member to guide the door panel of the protective door to rotate for opening and closing, thereby preventing generation of vibration and noise for achieving a practical effect of smooth change of tools.

Description

   Protective door opening and closing device for machine tools (2)   

The invention particularly relates to a door opening / closing device (2) for a smooth guide door of a protective door, which can be opened and closed pivotally to avoid vibration and noise, thereby achieving a smooth tool changing machine tool.

Press, the general machine tool is equipped with a tool magazine and a tool change mechanism, and the tool change mechanism performs the tool change operation between the tool magazine and the processing spindle. In addition, in order to prevent debris and cutting fluid from being sprayed during the processing, On the tool magazine and the tool change mechanism, a protective door that can be controlled to open and close is installed between the processing spindle and the tool magazine and the tool change mechanism. During processing, the protective door can be closed to prevent spraying during processing. Spattered debris or cutting fluid, and when the tool changing mechanism performs a tool changing operation, it controls the opening of the protective door and moves the tool changing mechanism to the processing spindle to perform the tool changing operation.

The opening and closing methods of the protective door of a conventional machine tool are generally connected to a driving source (such as a pressure cylinder) for the protective door for driving the protective door to open and close, and when the tool changing mechanism performs a tool changing operation, That is, first control the drive source to drive the protective door to open, then move the tool changing mechanism to the tool changing position to perform the tool changing operation of the processing spindle, and insert the preset tool on the processing spindle; when the tool changing operation is completed, Then reset the tool change mechanism and control the driving source to drive the protective door to close, and the machining spindle of the machine tool can carry out the machining operation; however, the opening and closing method of the protective door can achieve the purpose of blocking debris or cutting fluid. However, because it is necessary to additionally install a driving source that drives the protective door for opening and closing operations, in addition to increasing the production cost, it also matches the displacement action of the tool change mechanism, and it is necessary to control the driving source to open and close the protective door. However, in order to ensure that there is no interference between the opening and closing of the protective door and the displacement of the tool changing mechanism, you must wait for the protective door to be completely opened before the tool changing mechanism starts. Move to the tool change position. After the tool change mechanism completes the tool change, the same must also wait for the tool change mechanism to complete the displacement reset before driving the protective door to close, which will increase the waiting time in time sequence control. Affects the time of the tool change operation.

In order to solve the above-mentioned shortcomings of the way of opening and closing the protective door, the inventor developed a protective door opening and closing device for a machine tool; please refer to FIG. 1, which is the inventor's application in Taiwan No. 104127360 "tool machine "Protective door opening and closing device" invention patent case, which is provided with a tool changing device at the side of the processing spindle 10 of the machine tool, the tool changing device is provided with a tool magazine 11 with a cutting disc 111 and a tool changing arm 121 The tool changing mechanism 12 is driven by a driving source to make the tool changing mechanism 12 perform a straight reciprocating displacement, so that the tool changing arm 121 of the tool changing mechanism 12 can be shifted from the preliminary position to the side position of the knife disc 111 of the tool magazine 11, The tool changer 111 is set or removed from the set disc 111 of the tool magazine 11, or moved from the preliminary position to the tool change position of the processing spindle 10 to perform the tool change operation of the processing spindle 10. In addition, the processing spindle 10 and the A protective door 13 with a first door plate 131a and a second door plate 131b is provided between the tool changing mechanisms 12 to block the debris or cutting fluid sprayed by the processing spindle 10 during the processing, and the first door plate 131a and the replacement valve are changed. A first linkage group 20a is connected between the knife mechanisms 12, and the second door panel 131b and the A second linkage group 20b is connected between the knife mechanisms 12 so that the first door plate 131a and the second door plate 131b of the protective door 13 can be pivoted to open and close with the reciprocating displacement of the knife changing mechanism 12. The first linkage group 20a is provided with a first guide plate 21a fixed on the first door plate 131a of the protective door 13, and a first guide groove 211a having a substantially L-shape is formed on the first guide plate 21a, so that The first guide groove 211a of the first guide plate 21a has a first buffering section 2111a extending vertically and a first pushing section 2112a extending horizontally. In addition, a first simultaneous moving displacement first is connected to the tool changing mechanism 12. A connecting rod 22a is provided on the first connecting rod 22a with a first guide member 23a capable of being a roller, and the first guide member 23a is slidably disposed on the first guide member 21a of the first guide plate 21a. In the groove 211a, when the first connecting rod 22a and the first guide member 23a are vertically reciprocated with the tool changing mechanism 33, the first guide member 23a is positioned on the first guide plate 21a. A guide groove 211a slides back and forth in the first buffer section 2111a and the first moving section 2112a, thereby guiding the first door plate 131a of the protective door 13 to pivot open and close; the second company The moving group 20b is provided with a second guide plate 21b fixed on the second door plate 131b of the protective door 13, and a second guide groove 211b having an approximately L-shape is opened on the second guide plate 21b to make the second guide plate 21b The second guide groove 211b of the guide plate 21b has a vertically extending second buffer section 2111b and a horizontally extending second pushing section 2112b. In addition, a second connecting rod is provided on the tool changing mechanism 12 for a simultaneous simultaneous displacement. 22b, a second guide member 23b that can be a roller is provided on the second link 22b, and the second guide member 23b is slidably disposed in the second guide groove 211b of the second guide plate 21b Inside, when the second connecting rod 22b and the second guide member 23b are vertically reciprocated with the tool changing mechanism 12, the second guide member 23b is placed in the second guide groove of the second guide plate 21b The second buffer section 2111b and the second shift section 2112b of 211b slide back and forth in the second buffer section 2111b, thereby guiding the second door plate 131b of the protective door 13 to pivot open and close.

Please refer to FIG. 2, when the tool change mechanism 12 is driven to make a direct displacement toward the processing spindle 10, the first and second guide members 23 a and 23 b on the first and second links 22 a and 22 b are used, respectively. Pushing drives the first and second guide plates 21a, 21b and the first and second door plates 131a, 131b to open and pivot; refer to FIG. 3, when the tool changing mechanism 12 is driven toward the tool magazine 11, When it is displaced, the first and second guide members 23a and 23b on the first and second links 22a and 22b are used to pull and pull the first and second guide plates 21a and 21b and the first and second door plates 131a respectively. And 131b are pivoted for closing, so that the first door panel 131a and the second door panel 131b of the protective door 13 are pivoted to open and close together with the displacement of the tool changing mechanism 12. However, the width dimension of the first and second guide grooves 211a and 211b of the first and second guide plates 21a and 21b and the outer diameter dimension of the first and second guide moving members 23a and 23b are not easy to choose, that is, when the first When the gap between the outer diameter of the first and second guide members 23a and 23b and the side walls of the first and second guide grooves 211a and 211b of the first and second guide plates 21a and 21b is small, the first and second guide members 23a and 23b are easy to make. When the guide members 23a and 23b interfere with the first and second guide grooves 211a and 211b of the first and second guide plates 21a and 21b, the first and second guide members 23a and 23b cannot smoothly move to the first And two guide grooves 211a, 211b slide; however, when the outer diameter of the first and second guide members 23a, 23b and the side walls of the first and second guide grooves 211a, 211b of the first and second guide plates 21a, 21b When there is a large gap between them, the first and second guide members 23a and 23b can smoothly slide in the first and second guide grooves 211a and 211b. However, because of the first and second door plates 131a and 131b, When the pivoting action is opened, the first and second guide plates 23a and 23b are pushed to drive the first and second guide plates 21a and 21b, and the first and second door plates 131a and 131b are closed and pivoted. At this time, the first and second guide plates 21a and 21b are driven by the first and second guide moving members 23a and 23b. Therefore, when the first door plate 131a and the second door plate 131b are pivoted for opening and closing, the The first and second guide moving members 23a and 23b will be converted by the pushing drive to the pulling drive, and they will collide with the two side walls of the first and second guide grooves 211a and 211b, resulting in vibration and noise; therefore, the first and second guides There is a problem in the fitting of the moving members 23a, 23b and the first and second guide grooves 211a, 211b.

In view of this, the inventor then used his many years of research and development and production experience in related industries to in-depth research on the current problems. After long-term research and trial work, he finally developed a protective door opening and closing device for machine tools ( (2) To effectively improve the disadvantages of the prior art, this is the design purpose of the present invention.

An object of the present invention is to provide a protective door opening and closing device (2) of a machine tool, which is provided with a linkage group between the tool changer and the door panel of the protective door. The linkage group is provided on the door panel of the protective door. There is an elastic part which is pulled and closed, and a guide member with a cam surface and a roller abutting against the cam surface are provided between the tool changing device and the door plate of the protective door. The elastic member pulls the rollers against the cam surface of the guide member, and the door plate of the protective door can be smoothly opened and closed by the cam surface of the guide member to avoid vibration and Noise, to achieve the practical benefits of ensuring smooth tool change.

The second object of the present invention is to provide a protective door opening and closing device for a machine tool (2), which uses the displacement of the tool changing device to make the cam surface of the guide member guide the door plate of the protective door to pivot open and close. It not only does not need to install a driving source for opening and closing the door panel of the protective door, but also saves a lot of waiting time on timing control, thereby achieving effective reduction of production cost and tool changing time.

Learning part:

10‧‧‧ Machining Spindle

11‧‧‧tool magazine

111‧‧‧ set knife

12‧‧‧tool changing mechanism

121‧‧‧tool change arm

13‧‧‧ protective door

131‧‧‧a First door panel

131b‧‧‧Second door panel

20a‧‧‧First Link Group

21a‧‧‧First guide

211a‧‧‧First Guide

2111a‧‧‧First buffer section

2112a ‧ ‧ first transition

22a‧‧‧First connecting rod

23a‧‧‧First guide

20b‧‧‧Second Link Group

21b‧‧‧Second Guide

211b‧‧‧Second guide groove

2111b‧‧‧Second buffer section

2112b ‧‧‧ Second passage

22b‧‧‧Second link

23b‧‧‧Second guide

Part of the invention:

30‧‧‧ processing spindle

31‧‧‧plate

40‧‧‧tool changing device

41‧‧‧base

411‧‧‧Guide Post

412‧‧‧mobile seat

42‧‧‧Magazine

421‧‧‧Cutter

43‧‧‧tool changing mechanism

431‧‧‧tool change arm

44‧‧‧Drive source

50‧‧‧ protective door

51‧‧‧Frame

52a‧‧‧First door

52b‧‧‧Second door panel

60a‧‧‧First Link Group

61a‧‧‧First guide

611a‧‧‧First arc

612a‧‧‧first slash

613a‧‧‧First straight segment

62a‧‧‧first elastic member

63a‧‧‧first roller

631a‧‧‧first carrier

60b‧‧‧Second linkage group

61b‧‧‧Second guide

611b‧‧‧Second Curve

612b‧‧‧second slash

613b‧‧‧Second straight segment

62b‧‧‧Second Elasticity

63b‧‧‧Second Roller

631b‧‧‧Second support

A‧‧‧Tool

A’‧‧‧tool

70‧‧‧ protective door

71‧‧‧Frame

72a‧‧‧First door

72b‧‧‧Second door panel

80‧‧‧tool changing mechanism

801‧‧‧tool change arm

81‧‧‧Machining Spindle

90a‧‧‧First Link Group

91a‧‧‧First guide

911a‧‧‧first slash

912a‧‧‧The first arc

913a‧‧‧First straight segment

92a‧‧‧First elastic member

93a‧‧‧first roller

931a‧‧‧First Support

90b‧‧‧Second Link Group

91b‧‧‧ second guide

911b‧‧‧Second oblique line

912b‧‧‧Second Curve

913b‧‧‧Second straight segment

92b‧‧‧Second elastic member

93b‧‧‧Second Roller

931b‧‧‧Second support

Figure 1: Schematic of Taiwan Patent Application No. 104127360.

Fig. 2: Schematic diagram of the operation of Taiwan Patent Application No. 104127360 when the protective door is opened.

Fig. 3: Schematic diagram of the operation of Taiwan Patent Application No. 104127360 when the protective door is closed.

Figure 4: Side view of the first embodiment of the present invention.

FIG. 5 is a top view of the first embodiment of the present invention.

Fig. 6: Schematic diagram of the operation of the first embodiment of the present invention during processing operations (1).

Figure 7: Schematic diagram of the operation of the first embodiment of the present invention during processing operations (2).

FIG. 8 is a schematic view of a first embodiment of the present invention (1) for guiding the protective door to open.

FIG. 9 is a schematic view of the operation of the first embodiment of the present invention to guide the protective door to open (two).

FIG. 10 is a schematic diagram of the operation of the first embodiment of the present invention to guide the protective door to open (three).

FIG. 11 is a schematic view of the operation of the first embodiment of the present invention to guide the closing of the protective door (1).

FIG. 12 is a schematic view of the operation of the first embodiment of the present invention to guide the closing of the protective door (2).

Fig. 13: Schematic diagram of the operation of the first embodiment of the present invention to guide the closing of the protective door (3).

Fig. 14 is a top view of a second embodiment of the present invention.

FIG. 15 is a schematic diagram of the operation of the second embodiment of the present invention to guide the protective door to open.

In order to make your reviewing committee further understand the present invention, the preferred embodiment will be given in conjunction with the drawings. The details are as follows: Please refer to Figures 4 and 5. The present invention is provided with a processing spindle on a machine tool. 30, and an accommodating space is surrounded by a plate 31 at a side position of the processing spindle 30, and a tool changing device is installed in the accommodating space, and the tool changing device is driven by a driving source to move to The tool changing position is to perform the tool changing operation of the machining spindle 30. The tool changing device may be an armless type or a tool arm type. The armless type tool changing device is only provided with a tool magazine and is driven by a driving source. The tool changer of the direct drive tool changer is moved to the tool change position of the processing spindle 30 to perform the tool change operation. The tool changer of the tool arm type is provided with a tool changer and a tool changer, and the tool changer is driven by a drive source. Move to the tool change position of the tool magazine and the processing spindle 30 to perform the tool change operation; in this embodiment, a knife-arm type tool change device 40 is used as an example, and the tool change device 40 is attached to a machine base 41 A tool magazine 42 with a knife disc 421 is set up, and two vertical directions are set at the lateral position of the tool magazine 42 The guide post 411 is arranged for slidingly setting a moving base 412, and a tool changing mechanism 43 with a tool changing arm 431 is installed on the moving base 412, so that the tool changing mechanism 43 can be straight along the two guide posts 411 It slides back and forth, and a driving source 44 is connected to the moving seat 412 to drive the moving seat 412 and the tool changing mechanism 43 to perform a direct reciprocating displacement, so that the tool changing arm 431 of the tool changing mechanism 43 can be displaced from the preliminary position. To the side position of the tool holder 42 of the tool magazine 42 to set or take the tool from the tool holder 42 of the tool magazine 42 or to move from the preliminary position to the tool change position of the processing spindle 30 to execute the processing spindle 30 For the tool changing operation, since the design of the tool magazine 42 and the tool changing mechanism 43 are already known technologies, and are not the focus of the application in this case, they will not be described in detail; a setting is made between the processing spindle 30 and the tool changing mechanism 43 There is a protective door 50. The protective door 50 is provided with at least one pivotable closing door plate to block the debris or cutting fluid sprayed by the processing spindle 30 during the processing, and the door plate of the protective door 50 and the replacement The knife mechanism 43 is provided with at least one linkage group, so that the door panel of the protective door 50 can match the direction of the knife changing mechanism 43. Displacement acts to pivot open and close. In this embodiment, the protective door 50 is provided with a frame 51, the outside of the frame 51 is connected to the plate 31, and a first door plate 52a is pivotally provided in the frame 51. And a second door panel 52b, a first linkage group 60a is connected between the first door panel 52a of the protective door 50 and the tool changing mechanism 43, and a second door panel 52b of the protective door 50 is connected with the tool changing mechanism 43 There is a second linkage group 60b, wherein the first linkage group 60a is provided on the first door panel 52a of the protective door 50 with a first elastic member 62a that is closed by pulling, and the tool changing mechanism 43 is connected with a straight A first guide member 61a that is displaced in the same movement, and a first cam surface is provided on the first guide member 61a, and a first curved arc segment 611a is provided at the front end of the first cam surface, and A first oblique line segment 612a inclined from the inside to the outside is extended at the rear end of the arc segment 611a, and a first straight line segment 613a is extended at the rear end of the first oblique line segment 612a. The first door panel 52a of the protective door 50 is also provided. The first roller 63a abuts on the first cam surface of the first guide 61a, and performs a vertical reciprocating position on the tool changing mechanism 43. At this time, the first roller 63a on the first door plate 52a is kept abutting against the first cam surface of the first guide member 61a by the pulling action of the first elastic member 62a, and the first The first cam surface of the guide 61a and the first roller 63a cause the first door plate 52a of the protective door 50 to pivot open and close as the vertical reciprocating displacement of the tool changing mechanism 43; in this embodiment In the middle, the first roller 63a is erected on the first door panel 52a of the protective door 50 with a first bracket 631a; the second linkage group 60b is provided with a pull on the second door panel 52b of the protective door 50 The second elastic member 62b is closed, and the tool changing mechanism 43 is connected with a second guide member 61b that moves in the same direction, and a second cam surface is provided on the second guide member 61b. A second curved arc segment 611b is provided at the front end of the two cam surfaces, and a second diagonal line segment 612b inclined from the inside to the outside is extended at the rear end of the second curved segment 611b, and the rear end of the second inclined line segment 612b is extended. There is a second straight section 613b, and a second roller 63 abutting on the second cam surface of the second guide 61b is provided on the second door plate 52b of the protective door 50 b, when the tool changing mechanism 43 performs a direct reciprocating displacement, that is, the pulling action of the second elastic member 62b is used to keep the second roller 63b on the second door plate 52b abutting against the two guide movements The second cam surface of the piece 61b, and the second cam surface of the two guide moving members 61b and the second roller 63b cause the second door plate 52b of the protective door 50 to reciprocate with the vertical change of the tool changing mechanism 43 In this embodiment, the second roller 63b is mounted on the second door panel 52b of the protective door 50 by a second support 631b.

Please refer to FIG. 6 and FIG. 7. During the processing operation of the processing spindle 30, the present invention can drive the tool changing mechanism 43 to move from the preparation position to the lateral position of the tool holder 421 of the tool magazine 42 in advance. After the preset tool A is taken out from the tool changer arm 431 of the tool changer 43 on the tool holder 421 of the tool magazine 42, the tool changer 43 is driven to reversely move to the standby position to stand by; when the changer is driven When the knife mechanism 33 is vertically reciprocated between the standby position and the lateral position of the knife disc 421 of the tool magazine 42, the first and second cam surfaces of the first and second guide members 61a and 61b are respectively different from the first The two rollers 63a, 63b are separated, and the first and second door plates 52a, 52b of the protective door 50 are not guided to pivotally move. The first and second door plates 52a, 52b of the protective door 50 are respectively replaced by the first The two elastic members 62a and 62b are pulled and kept closed, and the first and second door plates 52a and 52b of the protective door 50 block the debris or cutting fluid sprayed from the processing spindle 30 during processing.

Please refer to FIG. 8, when the processing spindle 30 stops processing to perform a tool changing operation, it drives the tool changing mechanism 43 to move straight from the standby position to the tool changing position of the processing spindle 30. When the tool changing mechanism 43 is driven At the same time of the direct displacement, the first and second guide members 61a and 61b of the first and second linkage groups 60a and 60b are respectively displaced along with the tool change mechanism 43 in the vertical direction. The first and second curved arc sections 611a and 611b begin to guide the first and second rollers 63a and 63b, and drive the first and second door plates 52a and 52b of the protective door 50 to start pivotally opening. The pulling action of the first and second elastic members 62a and 62b keeps the first and second rollers 63a and 63b abutting against the first and second curved arc sections 611a and 611 of the first and second cam surfaces, respectively; As shown in FIG. 9, the tool change mechanism 43 is continuously driven to move straight. The first and second cam members 61 a and 61 b of the first and second cam surfaces of the first and second oblique line segments 612 a and 612 b will continue to move the first and second Two rollers 63a, 63b, and drive the first and second door plates 52a, 52b of the protective door 50 to continuously pivot open, and at the same time, the same Utilizing the pulling action of the first and second elastic members 62a and 62b, the first and second rollers 63a and 63b are kept in contact with the first and second cam surfaces of the first and second guide members 61a and 61b, respectively. The first and second oblique line segments 612a and 612b; please refer to FIG. 10, when the driving tool changer 43 is directly displaced to the tool changing position, the first and second guide members 61a and 61b are first and second. The first and second straight sections 613a and 613b of the cam surface will successively push against the first and second rollers 63a and 63b, and stop driving the first and second door plates 52a and 52b of the protective door 50 to pivot open. At the same time, the same The drawing action of the first and second elastic members 62a and 62b is used to keep the first and second rollers 63a and 63b against the first and second cams of the first and second guide members 61a and 61b, respectively. The first and second straight sections 613a, 613b of the surface; further, the first and second door plates 52a, 52b of the protective door 50 are combined with the vertical displacement action of the tool changing mechanism 43 to complete the pivot opening; then the tool changing mechanism 43 is driven The tool changing arm 431 performs the tool changing operations of the tool spindle 30, such as withdrawing, drawing, rotating and inserting tools, and the tool spindle 30 With A 'taken, and pre-processing tool A is mounted on the main shaft 30, tool change operation is completed.

Please refer to FIG. 11. After the tool changing arm 431 of the tool changing mechanism 43 completes the tool changing operation, the tool changing mechanism 43 is then driven to move backward. Since the first and second door plates 52 a and 52 b of the protective door 50 are respectively Under the pull of the first and second elastic members 62a and 62b, therefore, when the first and second guide members 61a and 61b of the first and second linkage groups 60a and 60b are reversely displaced with the tool changing mechanism 43 respectively That is, even if the first and second rollers 63a and 63b continue to abut the first and second oblique line segments 612a and 612b of the first and second guide members 61a and 61b, respectively, the first and second rollers 63a and 63b can be smoothly moved by the first and second The first and second oblique line segments 612a and 612b of the two guide moving members 61a and 61b respectively guide the first and second door plates 52a and 52b of the protective door 50 to gradually pivotally close in opposite directions.

Please refer to FIG. 12 and FIG. 13, the driving tool changing mechanism 43 is continuously driven to reversely move, and the first and second cam surfaces of the first and second cam members 61 a and 61 b are connected to the first and second curved arc sections 611 a and 611 b. The first and second rollers 63a and 63b are guided, so that the first and second door plates 52a and 52b of the protective door 50 are pivotally closed with the reverse displacement action of the tool changing mechanism 43. Therefore, the first embodiment of the present invention can automatically open and close the door panel of the protective door by using the displacement operation of the tool changing mechanism 43. It is not only necessary to install a driving source for opening and closing the door panel, but also can be used for timing control. Save a lot of waiting time, and then effectively reduce the production cost and tool change time. In addition, the present invention uses the first and second elastic members 62a, 62b to pull the first and second door plates 52a, 52b, so that the first and second rollers 63a on the first and second door plates 5 2a, 52b can be made. , 63b, whether it is pivotally opened or pivotally closed, the first and second door plates 52a, 52b can be kept against the first and second cam surfaces of the first and second guide members 61a, 61b, and The first and second cam surfaces of the first and second guide members 61a and 61b and the first and second rollers 63a and 63b can smoothly guide the first and second door plates 52a and 52b of the protective door 50 to pivot, respectively. Opening and closing, thus effectively improving the cam groove of the conventional guide groove type. When the door panel is opened and closed for pivoting, the vibration and noise caused by the collision caused by the shift drive are converted to the pull drive.

Compared with the first embodiment, the second embodiment of the present invention is mainly different in that the guide member of the linkage group is installed on the door panel, and the roller abutting against the guide member is connected to the tool changing mechanism; Please refer to FIG. 14. The protective door 70 according to the second embodiment of the present invention is pivotally provided with a first door plate 72 a and a second door plate 72 b inside the frame 71. The first door plate 72 a and the tool changer of the protective door 70 are provided. A first linkage group 90a is connected between the mechanisms 80, and a second linkage group 90b is connected between the second door panel 72b of the protective door 70 and the tool changing mechanism 80. The first linkage group 90a is attached to the protective door. The first door plate 72a of 70 is provided with a first elastic member 92a which is closed by pulling, and a first guide member 91a is provided on the first door plate 72a, and the first guide member 91a is provided with a first cam surface. A first inclined line segment 911a inclined inward is provided at the front end of the first cam surface, and a first curved segment 912a is extended at the rear end of the first inclined line segment 911a, and the rear end of the first curved segment 912a is extended. A first linear segment 913a is provided, and a first simultaneous movement displacement is connected to the tool changing mechanism 80, and a first The first roller 93a abutted on the wheel surface is kept in abutment, and when the tool changing mechanism 80 performs a reciprocating vertical displacement, the first elastic member 92a is used to make the first roller 72a on the first door plate 72a The first cam surface of the guide member 91a keeps abutting against the first roller 93a, and the first roller plate 93a and the first guide member 91a are used to change the first door plate 72a of the protective door 70 with The vertical reciprocating displacement of the knife mechanism 80 is pivoted to open and close. In this embodiment, the first roller 93a is connected to the knife changing mechanism 80 by a first holder 931a; and the second linkage The group 90b is provided on the second door panel 72b of the protective door 70 with a second elastic member 92b which is pulled closed, and a second guide member 91b is provided on the second door panel 72b. The two guide members 91b are provided with There is a second cam surface. A second oblique line segment 911b inclined inward is provided at the front end of the second cam surface, and a second curved arc segment 912b is extended at the rear end of the second oblique line segment 911b. A second linear segment 913b is extended at the rear end of the segment 912b, and a second simultaneous displacement is provided on the tool changing mechanism 80, and the second part is parallel to the second guide 91b. The second roller 93b abutted on the wheel surface is kept in abutment, and when the tool changing mechanism 80 is reciprocated in a vertical direction, the second elastic member 92b is used to pull the second roller 93b on the second door plate 72b. The second cam surface of the guide 91b keeps abutting against the second roller 93b, and the second roller 93b and the second guide 91b make the second door panel 72b of the protective door 70 change with The vertical reciprocating displacement of the knife mechanism 80 is pivoted to open and close. In this embodiment, the second roller 93b is connected to the knife changing mechanism 80 by a second support 931b.

Please refer to FIG. 15, when the driving tool changing mechanism 80 is directly displaced to the tool changing position, the first and second rollers 93 a and 93 b will continuously push against the first and second guide moving members 91 a and 91 b. The first and second oblique line sections 911a and 911b of the first and second cam surfaces, and the first and second curved arc sections 912a and 912b all the way to the first and second straight line sections 913a and 913b, and stop driving the first, The two door plates 72a and 72b are pivotally opened, and at the same time, the first and second cam surfaces of the first and second guide members 91a and 91b are kept abutted by the pulling action of the first and second elastic members 92a and 92b, respectively. At the first and second rollers 93a and 93b, the first and second door plates 72a and 72b of the protective door 70 are combined with the vertical displacement action of the tool changing mechanism 80 to complete the pivot opening; then the tool changing mechanism 80 is driven The tool changing arm 801 performs the tool changing operations of the machining spindle 81 such as withdrawing, drawing, rotating and inserting tools, and taking out the tools on the machining spindle 81, and installing the preset tools on the machining spindle 81. Up and complete the tool change operation. Since the second embodiment is opposite to the opening action in the sequence of closing the first and second door panels 72a and 72b, it will not be repeated here. Therefore, the second embodiment of the present invention can automatically use the displacement of the tool changing mechanism 80 to automatically open and close the door panel of the protective door, not only does not need to install a drive source that drives the door panel to open and close, but also in time sequence. The control can save a lot of waiting time, which can effectively reduce the production cost and tool changing time. In addition, the second embodiment of the present invention makes use of the first and second elastic members 92a, 92b to pull the first and second door plates 72a, 72b, so that the first and second door plates 72a, 72b can be used to pull the first and second door plates 72a, 72b. The first and second cam surfaces of the guide members 91a and 91b can remain abutted against the first and second rollers 93a, whether they are pivoted open or pivoted to close the first and second door plates 72a, 72b. 93b, and the first and second cam plates 72a of the protective door 70 can be smoothly guided by the first and second rollers 93a and 93b and the first and second cam surfaces of the first and second guide members 91a and 91b, respectively. , 72b pivot opening and closing, and thus effectively improve the cam groove of the conventional guide groove type. When the door panel is opened and closed for pivoting, the vibration and noise caused by the collision caused by the shift drive are converted to the pull drive.

According to this, the present invention is a practical and progressive design, but the same products and publications have not been disclosed, which allows the invention patent application requirements to be met, and the application is submitted according to law.

Claims (10)

    A protective door opening and closing device for a machine tool (2), the machine tool is equipped with a processing spindle and a tool changing device, a protective door is installed between the processing spindle and the tool changing device, and at least one For the door panel, the tool changing device is driven by a driving source to perform a direct reciprocating displacement, so that the tool changing device passes through the door panel of the protective door to perform a tool changing operation. Among them, the tool changing device and the door panel of the protective door are connected. Provided with at least one linkage group, the at least one linkage group includes: an elastic member: installed on the door panel of the protective door for pulling and closing the door panel; a guide member: a cam surface and installed On the tool changing device, and the tool changing device moves back and forth to move; roller: is installed on the door plate of the protective door and abuts against the cam surface of the guide member to link the protective door The door panel pivots to open and close.         The protective door opening and closing device for the machine tool according to item 1 of the scope of the patent application (2), wherein the front end of the cam surface of the guide member is provided with a curved arc section, and the rear end of the curved arc section is provided with a curved arc section A slanted line segment is provided with a straight line segment at the rear end of the slanted line segment.         The protective door opening and closing device (2) of the machine tool according to item 1 of the scope of the patent application, wherein the tool changing device is a tool magazine with a knife tray mounted on a machine base, and is located on the side of the tool magazine. The square position frame is provided with two vertically arranged guide posts for slidingly setting a moving base, and a tool changing mechanism with a tool changing arm is installed on the moving base, and the driving source is connected to the moving base to drive the The moving seat and the tool changing mechanism are vertically reciprocated.         The protective door opening and closing device of the machine tool according to item 1 of the scope of the patent application (2), wherein the protective door is provided with a frame, and a first door plate and a second door plate are pivotally arranged in the frame. A first linkage group is connected between a door panel and the tool changing device, and a second linkage group is connected between the second door panel and the tool changing device.         The protective door opening and closing device (2) of the machine tool according to item 4 of the scope of the patent application, wherein the first linkage group is a first guide member connected to the tool changing device and provided with a simultaneous simultaneous displacement. A first cam surface is provided on the first guide member, and a first elastic member that pulls and closes and a first cam that abuts against the first guide member are provided on the first door panel of the protective door. The first roller on the surface, the second linkage group is connected to the tool changer with a second guide member for direct simultaneous displacement, and a second cam surface is provided on the second guide member. The second door panel of the protective door is provided with a second elastic member that is pulled closed and a second roller that abuts on the second cam surface of the second guide member.         A protective door opening and closing device for a machine tool (2), the machine tool is equipped with a processing spindle and a tool changing device, a protective door is installed between the processing spindle and the tool changing device, and at least one For the door panel, the tool changing device is driven by a driving source to perform a direct reciprocating displacement, so that the tool changing device passes through the door panel of the protective door to perform a tool changing operation. Among them, the tool changing device and the door panel of the protective door are connected. Provided with at least one linkage group, the at least one linkage group includes: an elastic member: installed on the door panel of the protective door for pulling and closing the door panel; rollers: mounted on the tool changing device The tool changing device is moved back and forth by movement; a guide member: a cam surface is provided on the door panel of the protective door, and the cam surface of the guide member is abutted against the roller to interlock the The door panel of the protective door pivots to open and close.         The protective door opening and closing device (2) of the machine tool according to item 6 of the scope of the patent application, wherein the front end of the cam surface of the guide member is provided with a slanted line segment, and a curved arc is extended at the rear end of the slanted line segment. Segment, the curved arc segment is extended with a straight segment at the rear end.         The protective door opening and closing device (2) of the machine tool according to item 6 of the scope of the patent application, wherein the tool changing device is a tool magazine with a knife tray mounted on a machine base, and is located on the side of the tool magazine. The square position frame is provided with two vertically arranged guide posts for slidingly setting a moving base, and a tool changing mechanism with a tool changing arm is installed on the moving base, and the driving source is connected to the moving base to drive the The moving seat and the tool changing mechanism are vertically reciprocated.         The protective door opening and closing device (2) of the machine tool according to item 6 of the scope of the patent application, wherein the protective door is provided with a frame, and a first door plate and a second door plate are pivotally arranged in the frame. A first linkage group is connected between a door panel and the tool changing device, and a second linkage group is connected between the second door panel and the tool changing device.         The protective door opening and closing device (2) of the machine tool according to item 9 of the scope of the patent application, wherein the first linkage group is a first roller connected to the tool changing device and provided with a simultaneous simultaneous displacement, The first door panel of the protective door is provided with a closed first elastic member and a first guide member having a first cam surface, and the first cam surface of the first guide member abuts against the first cam member. The first roller, the second linkage group is connected to the tool changer with a second roller with a simultaneous simultaneous displacement, and the second door panel of the protective door is provided with a second elasticity for pulling and closing. And a second guide member having a second cam surface, and the second cam surface of the second guide member abuts against the second roller.