Tool magazine protective door opening and closing device

Abstract

The present invention relates to the field of mechanical product processing equipment, and more specifically to a tool magazine protective door opening and closing device, including a base, a protective door, a tool magazine assembly and a driving component, wherein the tool magazine assembly is movably arranged on the base, the driving component is arranged on the base, the driving component is used to drive the tool magazine assembly to perform a push-out movement and a retracting movement on the base, the protective door is arranged on the front side of the movement direction of the tool magazine assembly, and the protective door is connected with a reset structure; when the tool magazine assembly performs a push-out movement, the push portion thereon is used to abut the protective door and apply a thrust to the protective door to rotate and open the protective door; when the tool magazine assembly performs a retracting movement, the reset structure connected to the protective door is used to apply a force to the protective door to rotate and close the protective door. The present invention can save equipment costs, save design space for the protective door, and improve the flexibility of the design position of the tool magazine assembly in the machine tool.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical product processing equipment, and more specifically, relates to an opening and closing device for a tool magazine protective door. Background Art

[0002] The tool magazine door of the straight matrix tool magazine used in machine tools is generally not completely sealed, and the chips will enter the tool magazine along with the pressurized cutting fluid. In one existing solution, an independent protective door is designed for the tool magazine, which is opened and closed by a separate drive mechanism. This solution significantly increases the cost of the machine tool, and the independent drive mechanism also occupies the space of the machine tool.

[0003] Some other solutions use a connecting rod structure that moves with the tool magazine assembly to provide power for opening the protective door. However, this connecting rod structure constrains both the tool magazine assembly and the protective door. The movement distance of the tool magazine assembly is limited by the stroke of the connecting rod structure. Therefore, for some machines where the spindle is far from the protective door, the tool magazine assembly cannot move to the spindle to change tools. Summary of the invention

[0004] The main purpose of the present invention is to provide a tool magazine protective door opening and closing device, which does not require an additional driving mechanism for opening and closing the protective door and can enable the tool magazine to have a longer movement distance.

[0005] The tool magazine protective door opening and closing device comprises a base, a protective door, a tool magazine assembly and a driving component, wherein the tool magazine assembly is movably arranged on the base, the driving component is arranged on the base, and the driving component is used to drive the tool magazine assembly to perform pushing and retracting movements on the base, the protective door is arranged on the front side of the movement direction of the tool magazine assembly, the tool magazine assembly is provided with a pushing portion, and the protective door is connected with a reset structure;

[0006] When the tool magazine assembly performs a pushing motion, the pushing portion is used to abut against the protective door and exert a thrust on the protective door to rotate the protective door open;

[0007] When the tool magazine assembly performs a retracting movement, the resetting structure is used to apply force to the protective door to rotate and close the protective door.

[0008] Further preferably, a maintaining portion is provided on the tool magazine assembly, and when the tool magazine assembly performs a pushing motion, the maintaining portion is used to abut against the protective door to maintain the protective door in an open state.

[0009] Further preferably, the maintaining portion is arranged behind the pushing portion, and in the width direction of the tool magazine assembly, the maintaining portion is closer to the rotation axis of the protective door than the pushing portion, and the width direction is orthogonal to the pushing movement direction of the tool magazine assembly.

[0010] Further preferably, the protective door includes a door body, and a detachable reinforcement part is provided on a surface of the door body facing the tool magazine assembly. When the tool magazine assembly performs a pushing movement, the reinforcement part is used to abut at least one of the pushing part and the maintaining part.

[0011] Further preferably, the reset structure comprises a connecting rod, a first end of the connecting rod is rotatably connected to the protective door, a second end of the connecting rod is rotatably connected to the tool magazine assembly, and

[0012] The first end of the connecting rod has translational freedom relative to the protective door, and / or

[0013] The second end of the link member has translational freedom relative to the tool magazine assembly.

[0014] Further preferably, the tool magazine assembly includes at least one guide body, the extension direction of each guide body is parallel to the pushing movement direction of the tool magazine assembly, the second end of the connecting rod member is movably arranged on the guide body along the extension direction of the guide body, and the second end of the connecting rod member is rotatably connected to the guide body.

[0015] Further preferably, a connecting portion is provided at the front end of each guide body, and when the tool magazine assembly performs a retracting movement, the connecting portion is used to connect the second end of the connecting rod member to apply a force to the second end of the connecting rod member back to the protective door.

[0016] Further preferably, the protective door comprises a first protective door and a second protective door, the first protective door and the second protective door can be relatively opened and relatively closed, the guide body comprises a first guide body and a second guide body arranged in parallel, and the connecting rod comprises a first connecting rod and a second connecting rod.

[0017] The first end of the first connecting rod is movably connected to the first protective door, and the second end of the first connecting rod is movably connected to the first guide body.

[0018] The second end of the second connecting rod is movably connected to the second protective door, and the second end of the second connecting rod is movably connected to the second guide body.

[0019] Further preferably, a shielding body is provided on the first protective door, the shielding body is provided on a side of the first protective door close to the tool magazine assembly, at least a portion of the shielding body extends toward the second protective door, and when the protective door is closed, the shielding body shields the door gap between the first protective door and the second protective door.

[0020] On the tool magazine assembly, the connecting portion of the first guide body is located behind the connecting portion of the second guide body, or

[0021] A distance from the first end to the second end of the first connecting rod is smaller than a distance from the first end to the second end of the second connecting rod.

[0022] Further preferably, the shielding body is connected to the first protective door via an adjusting component, and the adjusting component is used to adjust the extending length of the shielding body toward the second protective door.

[0023] The present invention has at least one of the following advantages or beneficial effects: the present invention adopts a push portion that moves integrally with the tool magazine assembly to provide power for opening the protective door, that is, directly adopts the push-out movement of the tool magazine assembly to carry out the linked door opening, and at the same time, the retracting movement of the tool magazine assembly adopts a reset structure to close the protective door, thereby eliminating the independent driving structure of the protective door, which can save equipment cost on the one hand and save design space for the protective door on the other hand;

[0024] Furthermore, the opening of the protective door is driven only by the tool magazine assembly without using other transmission parts, thereby reducing the movement constraints of the tool magazine assembly. The tool magazine assembly can continue to move forward to a farther distance after the protective door is opened, in order to reach the tool changing position of the machine tool's spindle that is farther away from the protective door. Therefore, the design position of the tool magazine assembly in the machine tool is more flexible, and the overall space utilization of the machine tool can also be more effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0026] Figure 1 It is a schematic diagram of the tool magazine protective door opening and closing device being in the protective door closed state;

[0027] Figure 2 It is a transmission schematic diagram of the tool magazine protective door opening and closing device in the protective door closed state;

[0028] Figure 3 It is a schematic diagram of the tool magazine protective door opening and closing device being in the protective door opening state;

[0029] Figure 4 It is a transmission schematic diagram of the tool magazine protective door opening and closing device in the protective door opening state;

[0030] Figure 5 It is a schematic diagram of delayed closing of tool magazine protective door;

[0031] Figure 6 yes Figure 5 The enlarged schematic diagram of point A in the middle;

[0032] Figure 7 This is a schematic diagram of the rear side of the protective door;

[0033] Figure 8 It is a schematic diagram of the front side of the protective door;

[0034] Fig. 9 yes Figure 8A magnified schematic diagram of point B in the middle. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal connection between two elements, indirect connection, or an interactive relationship between two elements.

[0040] The following disclosure provides many different embodiments or examples for implementing different solutions of the present invention.

[0041] refer to Figures 1 to 4The machine tool is provided with a tool magazine assembly 100, such as a straight-row tool magazine assembly. The machine tool is also provided with a protective door 1, which can be switched between open and closed. When opened, the power component drives the tool magazine assembly 100 to push out in the direction of the protective door 1, and the part of the tool magazine assembly 100 equipped with the tool can pass through the protective door 1 to the outside, and then the tool changing operation is performed; after the tool changing operation is completed, the power component drives the tool magazine assembly 100 to retract toward the inside of the protective door 1 until it is all inside the protective door 1, and then the protective door 1 is closed.

[0042] In existing machine tools of this type, the protective door generally needs to be equipped with an opening and closing drive member for driving the opening and closing operations of the protective door, thereby increasing the cost.

[0043] To this end, an embodiment of the present invention provides a tool magazine protective door opening and closing device used on the above-mentioned machine tool. The device at least uses the movement of the tool magazine assembly as a drive for the protective door, that is, the pushing movement of the tool magazine assembly drives the opening of the protective door, thereby realizing the linked movement of the tool magazine assembly and the protective door, and the protective door can also be automatically closed during the retraction movement of the tool magazine assembly.

[0044] First embodiment

[0045] As shown in the figure, the machine tool includes a base 200, a protective door 1 of a tool magazine assembly 100 is arranged on the front side of the base 200, and a driving component 300 is arranged on the rear part of the base 200. The tool magazine assembly 100 and the base 200 are movably connected, for example, they can be slidably connected. Specifically, a slide is connected to the base 200 along the front-to-back direction, and a slide rail is connected to the tool magazine assembly 100 along the front-to-back direction, and the slide and the slide rail are slidably matched. The front end of the slide rail in the length direction is the front side of the base. Of course, the slide can also be set on the tool magazine assembly, and the slide rail can be set on the base.

[0046] The driving component 300 is connected to the tool magazine assembly 100 through a transmission component, and the driving component 300 drives the tool magazine assembly 100 to perform a translational movement in the forward and backward directions on the base 200 through the transmission component. The forward translation of the tool magazine assembly 100 on the base 200 is a push-out movement of the tool magazine assembly 100 toward the protective door 1, and the backward translation of the tool magazine assembly 100 on the base 200 is a retraction movement relative to the protective door 1. It is easy to understand that the driving component can be a servo motor, and the transmission component can be a screw nut structure.

[0047] The front of the tool magazine assembly 100 is also provided with a push portion 2, which is used to push the protective door 1; the protective door 1 is also connected to a reset structure, which is used for the reset operation of closing the protective door 1. The protective door 1 is configured as a rotating door opening structure, which has a rotating axis around which it can be opened and closed, such as a hinge 401 hinged at the door frame 400 in the figure.

[0048] When the tool magazine assembly 100 is driven to make a forward pushing motion, the pushing portion 2 will first abut against the protective door 1 and apply a forward thrust to the protective door 1, causing the protective door 1 to rotate around its rotation axis and open, such as opening clockwise. At this time, the reset structure does not apply a pushing force to the protective door 1; when the tool magazine assembly 100 is driven to make a backward retracting motion, the reset structure applies a backward force to the protective door 1, causing the protective door 1 to rotate around its rotation axis and close, such as closing counterclockwise.

[0049] It is easy to understand that the pushing movement of the tool magazine assembly can include several pushing movement stages, and in a certain pushing movement stage, the pushing part 2 will abut against the protective door 1 and apply force to it to open it; similarly, the retraction movement of the tool magazine assembly can also include several retraction movement stages, and the reset structure can apply force to the protective door 1 in a certain retraction movement stage to close the protective door 1.

[0050] In this way, the present embodiment adopts the pushing part 2 that moves integrally with the tool magazine assembly 100 to provide the power for opening the protective door 1, that is, the pushing movement of the tool magazine assembly 100 is directly used to perform the linked door opening. At the same time, the retraction movement of the tool magazine assembly 100 adopts a reset structure to close the protective door 1, thereby eliminating the independent driving structure of the protective door. On the one hand, it can save equipment costs, and on the other hand, it can also save the design space of the protective door.

[0051] Furthermore, the opening of the protective door 1 is driven only by the tool magazine assembly without using other transmission parts, thereby reducing the movement constraints of the tool magazine assembly. The tool magazine assembly can continue to move forward to a farther distance after the protective door 1 is opened, so as to reach the tool changing position of the spindle of the machine tool which is farther away from the protective door 1. Therefore, the design position of the tool magazine assembly 100 in the machine tool is more flexible, and the overall space utilization of the machine tool can also be more effective.

[0052] The push portion 2 includes a first roller 21, and the tool magazine assembly 100 includes a push mounting seat fixedly arranged at the front end. The first roller 21 is rotatably connected to the push mounting seat, and the rotation axis of the first roller 21 is parallel to the rotation axis of the protective door 1. During the push-out movement, the first roller 21 abuts against the protective door 1 and applies force to it. At this time, the first roller 21 can rotate and form relative rolling with the protective door 1. The rolling friction formed by the rolling between the two reduces the mutual force, thereby improving the life and stability of the device.

[0053] Several pushing-out motion stages of the tool magazine assembly 100 correspond to several pushing-out motion paths of the tool magazine assembly 100 on the base 200. One of the pushing-out motion paths is the door-opening pushing-out path in which the pushing portion 2 continuously applies force to the protective door 1 to open the protective door 1. At this time, the tool magazine assembly 100 is defined as being in the door-pushing motion stage; and the tool magazine assembly 100 needs to continue the pushing-out motion to move in the main axis direction away from the protective door 1, and the pushing portion 2 will separate from the protective door 1 so that the tool magazine assembly 100 enters the door-opening maintenance stage. At this time, it is defined as the tool magazine assembly 100 being in the maintenance motion stage, that is, the tool magazine assembly 100 enters the door-opening maintenance path connected to the pushing-out motion path. During the movement of the door-opening maintenance path, the tool magazine assembly 100 needs to maintain the open state of the protective door 1 so that it does not affect the continuous motion state of the tool magazine assembly 100.

[0054] The tool magazine assembly 100 is provided with a maintaining portion 3, and the maintaining portion 3 and the pushing portion 2 are at least offset in the movement direction of the tool magazine assembly 100. When the tool magazine assembly 100 continues to move in the door opening maintenance path, the pushing portion 2 is separated from the protective door 1, and the maintaining portion 3 abuts against the protective door 1 to maintain the open state of the protective door 1. The maintaining portion 3 provided on the tool magazine assembly 100 acts on the protective door 1 to provide a maintaining force that prevents the protective door 1 from closing. When the tool magazine assembly 100 moves a long distance, there is no need to provide an additional driving structure or other power to maintain the protective door 1 closed, which is more beneficial to cost saving and the design of the protective door 1.

[0055] On the tool magazine assembly 100, the maintenance part 3 is arranged behind the push part 2. In addition, assuming that the pushing movement direction of the tool magazine assembly 100 is the front-to-back direction, and the width direction of the tool magazine assembly 100 is the left-to-right direction orthogonal to the front-to-back direction, then in the width direction of the tool magazine assembly 100, the maintenance part 3 is located outside the push part 2 and connected to the side end of the tool magazine assembly 100, that is, Figure 3 As shown in , the above-mentioned maintaining portion 3 and the pushing portion 2 form an angle, and the angle is an acute angle with the movement direction of the tool magazine assembly 100 , and the maintaining portion 3 is closer to the rotation axis of the protective door 1 than the pushing portion 2 .

[0056] During the process of switching the door opening and pushing path to the door opening maintaining path of the tool magazine assembly 100, the pushing part 2 disengages from the protective door 1, and the maintaining part 3 is located on the outside of the pushing part 2 and close to the rotating axis of the protective door 1. It can connect the disengagement of the pushing part 2 and continue to abut the protective door 1 to ensure the stability of the protective door 1 during the path switching and maintain the open state of the protective door 1 during the long-distance movement of the tool magazine assembly 100.

[0057] In the front-to-back direction, the tool magazine assembly 100 may also be provided with two or more sets of maintaining parts to abut the protective door 1 one by one, so as to facilitate a longer movement distance of the tool magazine assembly 100. Further preferably, in the width direction of the tool magazine assembly 100, the distances between each maintaining part and the rotation axis of the protective door 1 are equal.

[0058] Each maintenance part 3 includes a second roller 31, and the tool magazine assembly 100 includes a maintenance mounting seat fixedly arranged at the side end, the second roller 31 is rotatably connected to the maintenance mounting seat, and the rotation axis of the second roller 31 is parallel to the rotation axis of the protection door 1. During the push-out movement, the second roller 31 abuts against the protection door 1 and exerts force on it. At this time, the second roller 31 can rotate and form relative rolling with the protection door 1. The rolling friction formed by the rolling between the two reduces the mutual force, thereby improving the life and stability of the device.

[0059] Combination Figure 1-Figure 4 as well as Figure 7 The protective door 1 includes a door body, and a reinforcement part 11 is detachably provided on one side of the door body facing the tool magazine assembly 100. When the tool magazine assembly 100 is pushed out, the push part 2 (such as the first roller 21 mentioned above) abuts against the reinforcement part 11 and forms a force on the reinforcement part 11. At the same time, the push part 2 acts on the reinforcement part 11 and transmits the thrust to the door body. By providing the reinforcement part 11, the push part 2 does not directly contact the door body, so the door body is not easily worn or partially deformed by the direct action of the push part 2.

[0060] The direct effect of the pushing part 2 on the door body includes at least one of friction and pressure, and the friction and pressure will directly act on the reinforcement part 11, that is, when the pushing part 2 pushes the protective door 1, the pushing part 2 presses the reinforcement part 11; when the protective door 1 is opened, the pushing part 2 and the reinforcement part 11 form a kind of sliding friction and rolling friction. For example, the reinforcement part 11 is designed to have a certain structural strength so that it can better withstand the pressure of pushing, and the side of the reinforcement part 11 facing the pushing part 2 is provided with wear-resistant material so that it can have a longer wear life. Moreover, the reinforcement part 11 is detachably arranged on the door body, and can be quickly replaced after reaching the service life, which has less impact on the door body.

[0061] In other embodiments, the reinforcing portion described above is designed such that when the tool magazine assembly 100 performs a pushing motion, the maintaining portion 3 (such as the second roller 31 described above) abuts against the reinforcing portion and forms a force with the reinforcing portion.

[0062] In other embodiments, the reinforcement part described above is designed so that when the tool magazine assembly 100 performs a pushing motion, both the pushing part 2 and the maintaining part 3 can abut against the reinforcement part and form a force with the reinforcement part.

[0063] Specifically, a plate as a reinforcement part 11 is provided on the side of the door body facing the tool magazine assembly 100, and the plate is locked with the door body by bolts and nuts. The plate has a certain length along the width direction of the door body, so that the plate continuously abuts against the pushing part 2 (first roller 21) during the opening process of the protective door 1, and the plate continuously abuts against the maintaining part 3 (second roller 31) during the process of maintaining the opening of the protective door 1, and the plate bears the friction of the pushing part 2 and the maintaining part 3. The plate and the door body are connected by a connecting surface and are subjected to mutual force. The surface of the plate subjected to friction is defined as the friction surface, and the surface area of ​​the connecting surface is designed to be larger than the surface area of ​​the friction surface, so that the pressure of the pushing part 2 on the plate is transmitted and dispersed to the door body through a larger force-bearing surface, which is not easy to cause local deformation of the door body. Preferably, the surface area of ​​the connecting surface is designed to be more than 3 times the surface area of ​​the friction surface.

[0064] The opening process of protective door 1 is as follows:

[0065] like Figure 1 and Figure 2 As shown, the tool magazine assembly 100 moves forward and directly or delayedly enters the door opening and pushing path; the pushing portion 2 (first roller 21) continuously abuts against the reinforcement portion 11, and the protective door 1 is gradually opened; the tool magazine assembly 100 moves forward and enters the door opening maintenance path; the pushing portion 2 is separated from the reinforcement portion 11, and the maintenance portion 3 (second roller 31) continuously abuts against the reinforcement portion 11; Figure 3 and Figure 4 The tool magazine assembly 100 moves to a preset position, waiting for tool change and retracting backward.

[0066] During the door opening process, the reset structure does not directly or indirectly generate a force on the opening direction of the protective door 1 .

[0067] The retracting movement of the tool magazine assembly 100 and the closing of the protective door 1 are described below in conjunction with the pushing-out movement.

[0068] In one embodiment not shown in the figure, the reset structure includes an energy storage component, one end of which is connected to the protective door 1, and the other end is fixed relative to the base 200. The specific energy storage component can be a spring or a torsion spring, one end of which is connected to the protective door 1, and the other end is connected to the door frame that fixes the protective door 1. The energy storage component is in a free state when the protective door 1 is closed, and forms a tensile deformation or a compressive deformation when the protective door 1 is opened clockwise (counterclockwise), and generates a restoring force for closing the protective door 1 counterclockwise (clockwise), and one of the pushing part 2 and the maintaining part 3 overcomes the restoring force to push the protective door or keep the protective door 1 open; after the pushing part 2 and the maintaining part 3 are separated from the protective door 1, the restoring force drives the protective door 1 to close.

[0069] The energy storage component is provided to provide the closing force of the protective door 1, which makes the overall structure simpler. However, no matter which type of energy storage component is used, the restoring force is a continuous force, which hinders the thrust of the push part, so the tool magazine assembly needs a greater power to open the protective door, and the energy storage component is prone to fatigue or failure after multiple movements, which ultimately leads to the inability to maintain the accurate closing position.

[0070] In this embodiment, the reset structure is designed as a connecting rod structure. Figure 2 and Figure 4 , which includes a connecting rod 4, a first end of the connecting rod 4 is movably connected to the protective door 1, and a second end of the connecting rod 4 is movably connected to the tool magazine assembly 100. As shown in the figure, the connecting rod 4 is a straight rod, the front end (first end) of the straight rod is movably connected to the protective door 1, and the rear end (second end) of the straight rod is movably connected to the tool magazine assembly 100. When the protective door 1 is retracted, the tool magazine assembly 100 can pull the rear end of the straight rod, and the front end of the straight rod pulls the protective door 1 to close it.

[0071] In other embodiments, the connecting rod 4 is not limited to a straight rod, and may also be a triangular rod, an arc-shaped rod, or other rod structures. The tool magazine assembly 100 and the protective door 1 are movably connected by the connecting rod structure, and the retraction movement of the tool magazine assembly 100 can be used to pull and drive the protective door 1 to reset and close. Compared with the energy storage component, it is not easy to fail, and its reliability and stability are also higher.

[0072] It is easy to understand that the connecting rod structure can apply a pulling force to the protective door 1 during a certain retraction movement stage mentioned above, so that the protective door 1 closes and is retracted in conjunction with the movement of the tool magazine structure.

[0073] The push-out movement and the retracting movement of the tool magazine assembly 100 are opposite movement processes, and the retracting movement of the tool magazine assembly will also pass through the retracting maintenance path and the retracting pulling path in sequence, wherein the retracting maintenance path is connected to the front of the retracting pulling path. In addition, the retracting maintenance path and the door opening maintenance path are basically overlapped but in the opposite direction, and the retracting pulling path and the push-out movement path are basically overlapped but in the opposite direction.

[0074] The front end (first end) of the connecting rod member 4 is rotatably connected to the protective door 1 , and the rear end (second end) of the connecting rod member 4 is rotatably connected to the tool magazine assembly 100 .

[0075] In one embodiment, the rear end of the connecting rod member 4 is also configured to have translational freedom relative to the tool magazine assembly 100, that is, the rear end of the connecting rod member 4 can be movably connected to the tool magazine assembly 100, and the pushing out and retracting movement of the tool magazine assembly 100 can drive the movement of the connecting rod member 4, and the connecting rod member 4 can also translate relative to the tool magazine assembly 100, and the direction of the translation is the front-to-back direction which is the same as the movement direction of the tool magazine assembly 100.

[0076] In other embodiments, the front end of the connecting rod 4 is configured to have translational freedom relative to the protective door 1, and may be movably connected to the protective door 1. The pushing-out and retracting movements of the tool magazine assembly 100 can drive the movement of the connecting rod 4. The front end of the connecting rod 4 can translate relative to the protective door 1 to drive the protective door 1 to open or close. The direction of the translation may be the width direction of the protective door 1.

[0077] In another embodiment, the rear end of the connecting rod member 4 is movably connected to the tool magazine assembly 100 , and the front end of the connecting rod member 4 is movably connected to the protective door 1 .

[0078] The above three rotatable and translatable connection methods enable at least one end of the connecting rod to have a translational degree of freedom in addition to the rotational degree of freedom. The translational path corresponding to the translational degree of freedom can correspond to the retraction maintenance path and the door opening maintenance path of the tool magazine assembly 100. Then, when the tool magazine assembly 100 moves in these two paths, the tool magazine assembly 100 and the protective door 1 do not form a complete movement constraint on the end of the connecting rod 4, and the connecting rod 4 will not constrain the movement relationship between the tool magazine assembly 100 and the protective door 1 due to the lack of movement freedom. The tool magazine assembly can continue to move on the door opening maintenance path until the tool is sent to the tool changing position farther away from the protective door, and return from the tool changing position along the retraction maintenance path. Therefore, the design position of the tool magazine assembly in the machine tool is more flexible, and the overall space utilization of the machine tool can also be more effective.

[0079] Due to the limited width of the protective door, the translational position of the front end of the connecting rod member on the protective door is also limited, which is not conducive to the longer distance extension and retraction movement of the tool magazine assembly. In the embodiment, at least the rear end of the connecting rod member 4 is also arranged to have translational freedom relative to the tool magazine assembly 100, so that the tool magazine assembly 100 can reach a farther tool changing position.

[0080] Specifically, the tool magazine assembly 100 includes at least one guide body 5, and the extension direction of each guide body 5 is set along the front-to-back direction, that is, parallel to the push-out movement and retraction movement direction of the tool magazine assembly. The rear end of the connecting rod member 4 is movably set on the guide body 5 along the extension direction of the guide body 5, and the rear end of the connecting rod member 4 is rotatably connected to the guide body 5. In this embodiment, the tool magazine assembly 100 includes at least one guide rail 51, which is set along the front-to-back direction. A slide groove is opened in the guide rail 51 along its length direction, and the slide groove serves as the above-mentioned guide body 5. The rear end of the connecting rod member 4 is a connecting rod shaft, and the connecting rod shaft can slide along the direction of the slide groove. The part of the connecting rod shaft located in the slide groove is slightly smaller than the width of the slide groove, so that it can rotate in the slide groove while sliding. The connecting rod shaft also has a step portion, so that the rear end of the connecting rod member 4 is supported by the guide rail 51 through the step portion.

[0081] The length of the guide body 5 (slide groove) is more than 1 / 2 of the length of the tool magazine assembly 100, so the translation of the connecting rod 4 on the guide body 5 has a longer stroke, providing a larger space for the door opening maintenance path of the tool magazine assembly 100, and the tool magazine assembly 100 can move to a farther position.

[0082] Combination Figure 1 and Figure 3 The tool magazine assembly 100 includes a slide 101 and a tool carrier 102. The slide 101 is slidably connected to the base 200. The tool carrier 102 is fixedly arranged above the slide 101 and can translate relative to the base 200 as the slide 101 slides. The guide body 5 mentioned above is arranged in the accommodation space between the slide 101 and the tool carrier 102, and the rear end of the connecting rod 4 is also in the accommodation space. When the protective door 1 is in the open state, the upper part of the guide body 5 is blocked by the tool carrier 102, and the lower part is blocked by the slide 101. The rear end of the connecting rod 4 is also blocked by the tool carrier 102 and the slide 101. Then, the movable part of the connecting rod 4 is not easily entered by the cutting fluid and cutting generated in the machine tool, causing the connecting rod 4 to move unsmoothly, affecting the opening and closing actions.

[0083] A connection portion 6 is provided at the front end of each guide body 5. Specifically, in the above-mentioned slide groove, the closed end of the front end of the slide groove serves as the connection portion 6. When the tool magazine assembly 100 is retracted and in the retracting maintenance path, the connection portion 6 and the rear end of the connecting rod 4 are in a separated state. When the tool magazine assembly 100 is in the retracting pulling path, the rear end of the connecting rod 4 is relatively translated to the position connected to the connection portion 6, so that when the tool magazine assembly 100 continues to retract, the connection portion 6 applies a pulling force to the rear end of the connecting rod 4 that is back to the protective door 1, and the protective door 1 is driven to close in linkage through the force transmission of the connecting rod.

[0084] The connecting portion 6 not only provides pulling force, but also serves as a limiting portion of the translational freedom of the connecting rod 4 relative to the tool magazine assembly 100. In other embodiments, the connecting portion 6 can also be a block, sheet, or strip member erected upwardly at the end of the guide body 5.

[0085] Each guide body 5 includes a front section 52 and a rear section 53 connected to each other, and the front section 52 is connected to the front of the rear section 53 along the direction of the forward pushing movement of the tool magazine assembly 100. The connecting rod 4 switches back and forth between the front section 52 and the rear section 53; wherein the movement of the rear end of the connecting rod 4 in the front section 52 corresponds to the door pushing movement of the tool magazine assembly 100 in the door opening pushing path, and also corresponds to the retracting pulling path of the tool magazine assembly 100; the movement of the rear end of the connecting rod 4 in the rear section 53 corresponds to the maintenance movement of the tool magazine assembly 100 in the door opening maintenance path.

[0086] In the embodiment corresponding to the above-mentioned slide groove as the guide body 5, the front section 52 and the rear section 53 are two continuous groove sections in the slide groove along the front-to-back direction, and the front section 52 and the rear section 53 are continued to be described below.

[0087] When the door is pushed, the rear end of the connecting rod 4 rotates to connect with the front section 52 and rotates relatively. In addition, the rear end of the connecting rod 4 can be relatively positioned relative to the front section 52, or can slide along the front section 52. At this time, the connecting rod 4 does not generate a thrust on the protective door 1. The protective door 1 rotates and opens under the push of the push portion 2, and the connecting rod 4 and the front section 52 form a gradually increasing angle.

[0088] When the movement is maintained, the rear end of the connecting rod 4 rotates to connect the rear section 53, and the rear end of the connecting rod 4 slides along the rear section 53. At this time, the protective door 1 is maintained in an open state, and the angle between the connecting rod 4 and the rear section 53 is fixed. Because the rear section 53 has a certain length, the rear end of the connecting rod 4 can slide relative to the rear section 53. During the continuous push-out process of the tool magazine assembly 100, the relative position of the connecting rod 4 and the protective door 1 can be maintained without causing the two to be locked. When the movement is maintained, the connecting rod 4 can form a certain pulling force on the protective door 1 to prevent the protective door 1 from opening too large.

[0089] The retraction movement of the tool magazine assembly 100 is the reverse movement of the pushing movement, that is, when the tool magazine assembly 100 is in the retraction maintaining path, at least one of the maintaining part 3 and the pushing part 2 abuts against the protective door 1, and the rear end of the connecting rod 4 slides from the rear section 53 to the front section 52 relative to the guide body, and the protective door 1 is maintained in the open state during this process; when the tool magazine assembly 100 is in the retraction pulling path, the connecting part 6 connects to the rear end of the connecting rod 4, applies a pulling force to the connecting rod 4 to drive the protective door 1 to close, and the connecting rod 4 forms a gradually decreasing angle with the front section 52.

[0090] In the above-mentioned door opening and pushing out path and retracting and pulling path, the rotating shaft of the protective door, the protective door 1, the front end of the connecting rod 4, the connecting rod 4 and the rear end of the connecting rod constitute a mechanism similar to a crank slider, the protective door 1 is the prime mover but can only rotate within a certain range of 0 to 90 degrees, the connecting rod 4 is the connecting rod, and the rear end of the connecting rod 4 is the slider. In the above-mentioned door opening and maintaining path, the freedom of the connecting rod 4 relative to the protective door 1 is locked, and the rear end of the connecting rod 4 slips in the rear section 53.

[0091] It is easy to understand that the front section 52 does not necessarily have a longer length, but can provide rotational freedom and provide a certain translation margin for the rear end of the connecting rod member 4 and is also considered to be a movable section.

[0092] By setting the front section 52 and the rear section 53, after the protective door 1 is fully opened, the rear end of the connecting rod 4 can still move along the rear section 53, so it will not be locked relative to the tool magazine assembly 100, and the tool magazine assembly 100 can continue to move forward to a farther distance.

[0093] Second embodiment

[0094] Combined with reference Figure 5 and Figure 6 The protective door 1 includes a first protective door 12 and a second protective door 13 that can be relatively opened and relatively closed, the guide body 5 includes a first guide body 54 and a second guide body 55 arranged in parallel, the connecting rod member 4 includes a first connecting rod member 41 and a second connecting rod member 42, the front end of the first connecting rod member 41 is movably connected to the first protective door 12, the rear end of the first connecting rod member 41 is movably connected to the first guide body 54, the front end of the second connecting rod member 42 is movably connected to the second protective door 13, and the rear end of the second connecting rod member 42 is movably connected to the second guide body 55.

[0095] The first protective door 12, the first guide body 54, and the first connecting rod 41 constitute a set of door opening and closing mechanisms, and the second protective door 13, the second guide body 55, and the second connecting rod 42 constitute another set of door opening and closing mechanisms. Both sets of mechanisms have the technical solutions regarding the guide body 5, the protective door 1, and the connecting rod 4 in the above-mentioned first embodiment.

[0096] Compared with the single protective door solution, the two protective doors that can be opened relatively to each other in this embodiment only occupy half of the space in the opening direction when they are opened, which is more beneficial for saving the design space of the machine tool; and it can also shorten the translation stroke of the connecting rod.

[0097] Combined with reference Figure 7-Figure 9 The first protective door 12 is also provided with a shielding body 121, a part of which is connected to the first protective door 12, and the shielding body 121 also has a part extending toward the second protective door 13, and a part that can be connected to the second protective door 13 when the protective door 1 is closed. When the protective door 1 is closed, the extended part blocks the door gap 14 between the first protective door 12 and the second protective door 13 to prevent cutting fluid, cuttings or other foreign matter from approaching the tool magazine assembly 100 through the door gap 14, thereby improving the protection of the device. The shielding body 121 is preferably in a sheet shape, which can cover the door gap 14 along the height direction of the first protective door 12.

[0098] In one embodiment, the shielding body 121 is connected to the inner side of the first protective door 12 near the tool magazine assembly 100, and when the protective door 1 is closed, the second protective door 13 covers the front side of the shielding body 121. Since the shielding body 121 needs to have a certain structural strength to prevent possible hard objects from penetrating it, there is a possibility of collision and interference between the shielding body 121 and the second protective door 13 during the synchronous closing process of the protective door 1, which may cause the protective door 1 to be unable to close at the least, or even cause deformation and damage to the protective door 1 at the worst.

[0099] For this reason, the opening and closing device of this embodiment is designed so that the closing of the second protection door 13 is delayed compared with the closing of the first protection door 12 .

[0100] The following two implementations can both achieve this delayed closing effect:

[0101] In one embodiment, in the length (front and back) direction of the tool magazine assembly 100, the connection portion 61 of the first guide body 54 is further back than the connection portion 62 of the second guide body 55, that is, when the protective door 1 is closed, the connection portion 61 of the first guide body 54 is farther away from the corresponding protective door 1 than the connection portion 62 of the second guide body 55, and the distance between the two connections is s in the figure. During the closing process of the protective door 1, the connection portion 61 of the first guide body 54 will connect to the rear end of the first connecting rod 41 before the connection portion 62 of the second guide body 55, so that the pulling force of the door closing will be applied to the first protective door 12 first, and finally the first protective door 12 will reach the closed position earlier than the second protective door 13, and at this time, there will be no interference between the shielding body 121 and the second protective door 13.

[0102] In another embodiment not shown in the figure, the length of the first connecting rod 41 is less than the length of the second connecting rod 42. The length of the two connecting rods 4 is the distance from the corresponding front end to the rear end in the embodiment. When the front ends of the two connecting rods are connected by the corresponding connecting parts at the same time and a pulling force is applied, the length of the first connecting rod 41 is smaller, and the first protective door 12 reaches the closed position faster than the second protective door 13. Of course, in this embodiment, in the width direction of the tool magazine assembly, the first connecting rod is closer to the two side ends of the tool magazine assembly than the second connecting rod.

[0103] In order to achieve the stability of the delayed closure, the pushing portion 2 may also include a first pushing portion 23 and a second pushing portion 24, wherein the first pushing portion 23 is used to abut against the first protective door 12, and the second pushing portion 24 is used to abut against the second protective door 13, and in the front-to-back direction of the tool magazine assembly 100, the first pushing portion 23 is further back than the second pushing portion 24. The maintaining portion 3 may also include a first maintaining portion 33 and a second maintaining portion 34, wherein the first maintaining portion 33 is used to abut against the first protective door 12, and the second maintaining portion 34 is used to abut against the second protective door 13.

[0104] In order to further avoid collision and interference between the shielding body 121 and the second protective door 13, the shielding body 121 is designed to be adjustable in the direction of the extension length of the second protective door 13. Specifically in this embodiment, the shielding body 121 is connected to the first protective door 12 through an adjusting component, and the adjusting component is used to adjust the extension length of the shielding body 121 in the direction of the second protective door 13. The first protective door 12 is provided with an oblong hole 122 along the width direction, and a through hole 131 is provided on the shielding body 121. The aperture of the through hole 131 corresponds to the width of the oblong hole 122, so that bolts that can match the oblong hole 122 and the through hole 131 can be passed through and the first protective door 12 and the shielding body 121 can be locked corresponding to different positions in the length direction of the oblong hole 122. Before the shielding body 121 is assembled, the position of the through hole 131 on the oblong hole 122 can be adjusted, and then locked with bolts. The above-mentioned adjustment component is used to adjust the extension length of the shielding body 121. If it is found during the machine tool test that the second protective door 13 and the shielding body 121 may collide and interfere, the extension length is reduced to avoid damage to the protective door 1.

[0105] The closing process of protective door 1 is as follows:

[0106] The tool magazine assembly 100 moves backwards;

[0107] When the tool magazine assembly 100 is retracted to maintain the path, the first maintaining portion 33 abuts against the first protective door 12, the second maintaining portion 34 abuts against the second protective door 13, the rear end of the first connecting rod 41 moves from the rear section to the front section of the first guide body 54, and the rear end of the second connecting rod 42 moves from the rear section to the front section of the second guide body 55. At this time, both protective doors 1 are positioned relative to the corresponding connecting rods;

[0108] When the tool magazine assembly 100 is retracted in the pulling path, the connection portion 6 of the first guide body 54 first abuts against the rear end of the first link member 41, applies a pulling force to the first link member 41, and pulls the first protection door 12 through the front end of the first link member 41 to close it, and the connection of the second guide body 55 then abuts against the rear end of the second link member 42, applies a pulling force to the second link member 42, and pulls the second protection door 13 through the front end of the second link member 42 to close it;

[0109] The first protection door 12 and the second protection door 13 are closed in sequence, and the shielding body 121 shields the door gap 14 between the two protection doors 1 .

[0110] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tool magazine protective door opening and closing device, comprising a base, a protective door, a tool magazine assembly and a driving component, wherein the tool magazine assembly is movably arranged on the base, the driving component is arranged on the base, and the driving component is used to drive the tool magazine assembly to perform pushing and retracting movements on the base, and the protective door is arranged on the front side of the tool magazine assembly in the moving direction, characterized in that: The tool magazine assembly is provided with a push portion, and the protective door is connected with a reset structure; When the tool magazine assembly performs a pushing motion, the pushing portion is used to abut against the protective door and exert a thrust on the protective door to rotate the protective door open; When the tool magazine assembly is retracted, the reset structure is used to apply force to the protective door to rotate and close the protective door; The tool magazine assembly is provided with a maintaining portion, and when the tool magazine assembly performs a pushing motion, the maintaining portion is used to abut against the protective door to maintain the protective door in an open state; The maintaining portion is arranged behind the pushing portion, and in the width direction of the tool magazine assembly, the maintaining portion is closer to the rotation axis of the protective door than the pushing portion, and the width direction is orthogonal to the pushing movement direction of the tool magazine assembly; The pushing portion includes a rotatable first roller. During the pushing movement of the tool magazine assembly, the first roller abuts against the protective door and applies force to the protective door, so that the first roller and the protective door form a relative rolling relationship. The maintaining part includes a rotatable second roller. During the pushing movement of the tool magazine assembly, when the pushing part is separated from the protective door and the maintaining part is in contact with the protective door, the second roller is in contact with the protective door and exerts a force on the protective door, so that the second roller and the protective door are in relative rolling relationship. The reset structure includes a connecting rod, which is a straight rod. The first end of the connecting rod is rotatably connected to the protective door, and the second end of the connecting rod is rotatably connected to the tool magazine assembly. When the protective door is retracted, the tool magazine assembly can pull the second end of the straight rod, and the first end of the straight rod pulls the protective door to close it. The second end of the connecting rod has a translational freedom relative to the tool magazine assembly. The tool magazine assembly comprises at least one guide body, the extension direction of each guide body is parallel to the pushing movement direction of the tool magazine assembly, the second end of the connecting rod is movably arranged on the guide body along the extension direction of the guide body, and the second end of the connecting rod is rotatably connected to the guide body; The pushing out and retracting movement of the tool magazine assembly can drive the movement of the connecting rod, and the connecting rod can also translate relative to the tool magazine assembly, and the translation direction is the front-to-back direction which is the same as the movement direction of the tool magazine assembly.

2. The tool magazine protective door opening and closing device according to claim 1 is characterized in that: The protective door comprises a door body, and a detachable reinforcement part is arranged on a surface of the door body facing the tool magazine assembly. When the tool magazine assembly performs a pushing movement, the reinforcement part is used to abut at least one of the pushing part and the maintaining part.

3. The tool magazine protective door opening and closing device according to claim 1, characterized in that: A connecting portion is provided at the front end of each guide body. When the tool magazine assembly performs a retracting movement, the connecting portion is used to connect the second end of the connecting rod member to apply a force to the second end of the connecting rod member that is directed back to the protective door.

4. The tool magazine protective door opening and closing device according to claim 3 is characterized in that: The protective door comprises a first protective door and a second protective door, the first protective door and the second protective door can be relatively opened and relatively closed, the guide body comprises a first guide body and a second guide body arranged in parallel, and the connecting rod comprises a first connecting rod and a second connecting rod. The first end of the first connecting rod is movably connected to the first protective door, and the second end of the first connecting rod is movably connected to the first guide body. The second end of the second connecting rod is movably connected to the second protective door, and the second end of the second connecting rod is movably connected to the second guide body.

5. The tool magazine protective door opening and closing device according to claim 4, characterized in that: The first protective door is provided with a shielding body, which is arranged on a side of the first protective door close to the tool magazine assembly, and at least a portion of the shielding body extends toward the second protective door. When the protective door is closed, the shielding body shields the door gap between the first protective door and the second protective door. On the tool magazine assembly, the connecting portion of the first guide body is located behind the connecting portion of the second guide body, or A distance from the first end to the second end of the first connecting rod is smaller than a distance from the first end to the second end of the second connecting rod.

6. The tool magazine protective door opening and closing device according to claim 5, characterized in that: The shielding body is connected to the first protective door via an adjusting component, and the adjusting component is used to adjust the extending length of the shielding body toward the second protective door.

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