Tool magazine protection device and machine tool

Abstract

The utility model relates to the field of machine tools, in particular to a tool magazine protection device and a machine tool, which are characterized in that a door curtain is arranged on a tool changing support, the door curtain is driven by a driving part to ascend to be folded or descend to be put down, and the door curtain covers the upper end face of the tool changing support in the folded state. The tool magazine can be protected from the upper end face of the tool changing support, and when the door curtain is in a put-down state, the door curtain separates the tool magazine from the working area, so that scrap iron in the working area is prevented from entering the tool magazine.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, and more specifically, to a tool magazine protection device and a machine tool. Background Art

[0002] In the technology of multi-spindle machining centers, most domestic machine tool manufacturers currently adopt a straight-line tool magazine and a chain-type tool magazine. As the name implies, the straight-line tool magazine is in a straight-line shape. The entire tool magazine is pushed out by a driving element to directly below the spindle head, and then the tool change is realized through a tool change mechanism.

[0003] In order to protect the tools on the tool magazine from chips, a protective door is usually set on the machine tool to separate the tool magazine area from the working area and prevent the iron chips on the working area from entering the tool magazine. However, the existing protective doors are all sliding doors that are pushed left and right or push-pull doors that are pushed forward and backward. The push-pull doors that are pushed forward and backward will occupy a large space, and the sliding doors that slide left and right need to be provided with sliding rails for sliding, and the inside of the sliding rails is easy to accumulate chips and not easy to clean.

[0004] Based on the above problems, the existing technology still has deficiencies and needs to be improved. Summary of the Utility Model

[0005] To solve the above problems, the purpose of the utility model is to provide a tool magazine protection device and a machine tool, which are provided with a curtain that can be retracted or lowered. When in use, it is used to separate the working area and the tool magazine area, playing a role in preventing chips.

[0006] The purpose of the utility model is achieved through the following technical solutions:

[0007] A tool magazine protection device provided by the utility model includes:

[0008] A tool change support;

[0009] A curtain mechanism, including a curtain and a driving component arranged on the tool change support, and the driving component drives the curtain to be retracted or lowered;

[0010] When the curtain is in the lowered state, it blocks the side of the tool change support, and when the curtain is in the retracted state, it covers the upper end surface of the tool change support.

[0011] In an embodiment, the driving component includes:

[0012] A curtain motor arranged on the tool change support;

[0013] A first pulley set, including a first pulley, a second pulley and a first belt sleeved on the first pulley and the second pulley, the first pulley is connected to the curtain motor, and the curtain motor drives the first pulley to rotate;

[0014] The first belt is horizontally arranged, the curtain is of a bendable structure, and the curtain is laid on the first belt and moves horizontally following the first belt.

[0015] In one embodiment, the driving component further includes:

[0016] A second pulley set. The first pulley set is connected to the curtain motor through the second pulley set. The second pulley set includes a third pulley, a fourth pulley, and a second belt sleeved on the third pulley and the fourth pulley. The third pulley is connected to the curtain motor, and the fourth pulley is connected to the first pulley.

[0017] In one embodiment, the driving component further includes a third pulley and a second belt. The first pulley is provided with a first belt position and a second belt position. The first belt is sleeved on the first belt position. The third pulley is connected to the curtain motor, and the second belt is sleeved on the third pulley and the second belt position.

[0018] In one embodiment, the driving component further includes:

[0019] A third pulley set, arranged on the tool changing bracket and oppositely arranged with the first pulley set. The third pulley set includes a fifth pulley, a sixth pulley, and a third belt sleeved on the fifth pulley and the sixth pulley;

[0020] A transmission rod, with one end connected to the first pulley and the other end connected to the fifth pulley. The third belt is horizontally arranged, and the side of the curtain away from the first belt is laid on the third belt and moves horizontally following the third belt.

[0021] In one embodiment, the curtain mechanism further includes a fourth pulley set arranged on the tool changing bracket. The fourth pulley set includes:

[0022] A seventh pulley, connected to the fifth pulley;

[0023] An eighth pulley, located below the seventh pulley;

[0024] A fourth belt, sleeved on the seventh pulley and the eighth pulley. The fourth belt is vertically arranged, and the fourth belt is fixedly connected to the side of the curtain.

[0025] In one embodiment, the curtain mechanism further includes:

[0026] A fixing strip, arranged along the side of the curtain away from the fourth pulley set.

[0027] In one embodiment, the curtain mechanism further includes a fifth pulley set arranged on the tool changing bracket. The first pulley is further provided with a third belt position. The fifth pulley set includes:

[0028] A ninth pulley, located below the first pulley;

[0029] The fifth belt is sleeved on the third belt position and the ninth pulley. The fifth belt is vertically arranged and is fixedly connected to the side of the curtain away from the fourth belt.

[0030] In an embodiment, the tool magazine protection device further includes a first fastening strip and a second fastening strip. The first fastening strip is used to fix the connection between the first belt and the curtain, and the second fastening strip is used to fix the connection between the third belt and the curtain.

[0031] A machine tool includes the tool magazine protection device of any one of the above and a machine tool body. The machine tool body includes a base, a gantry column and a workbench arranged on the base. The tool magazine protection device is arranged on the side of the gantry column away from the workbench; a tool magazine is arranged on the tool changing bracket. When the curtain is in the lowered state, the area of the tool magazine and the workbench are isolated.

[0032] The beneficial effect of the present utility model is that: a curtain is arranged on the tool changing bracket, and the curtain is driven to rise and retract or descend and lower by a driving component. When the curtain is in the retracted state, it covers the upper end surface of the tool changing bracket. In actual use, it can protect the tool magazine from the upper end surface of the tool changing bracket. When the curtain is in the lowered state, the curtain separates the tool magazine from the working area, preventing iron filings in the working area from entering the tool magazine. Description of the Drawings

[0033] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0034] Figure 1 is a schematic structural view of the tool magazine protection device of the present utility model;

[0035] Figure 2 is another schematic structural view of the tool magazine protection device of the present utility model;

[0036] Figure 3 is a schematic structural view of the curtain of the present utility model in the retracted state;

[0037] Figure 4 is a schematic structural view of the machine tool of the present utility model.

[0038] Among them, the reference numerals are:

[0039] 1 - tool changing bracket, 11 - bottom plate, 12 - first leg, 13 - second leg, 14 - first rod, 15 - second rod;

[0040] 2 - curtain mechanism, 21 - curtain, 22 - driving component, 221 - curtain motor;

[0041] 222 - The first pulley, 223 - The second pulley, 224 - The first belt;

[0042] 225 - The third pulley, 226 - The fourth pulley, 227 - The second belt;

[0043] 228 - The fifth pulley, 229 - The sixth pulley, 230 - The third belt, 231 - The transmission rod;

[0044] 232 - The seventh pulley, 233 - The eighth pulley, 234 - The fourth belt;

[0045] 3 - The fixing bar, 4 - The first fastening bar, 5 - The second fastening bar;

[0046] 6 - The tool magazine;

[0047] 7 - The machine tool body, 71 - The base, 72 - The workbench, 73 - The gantry column. Specific embodiments

[0048] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0049] Reference Figures 1 to 3 As shown in [reference figure], a tool magazine protection device according to an embodiment of the present invention includes a tool change bracket 1 and a curtain mechanism 2. The curtain mechanism 2 includes a curtain 21 provided on the tool change bracket 1 and a driving component 22. The driving component 22 drives the curtain 21 to be retracted or lowered. When the curtain 21 is in the lowered state, it blocks the side of the tool change bracket 1, and when the curtain 21 is in the retracted state, it covers the upper end surface of the tool change bracket 1. Specifically, when the curtain 21 is in the lowered state and needs to be retracted, the driving component 22 drives the curtain 21 to move upward. During the upward movement, the driving component 22 drives the upper end portion of the curtain 21 to the horizontal state until the curtain 21 horizontally covers the upper end surface of the tool change bracket 1. When the curtain 21 is in the retracted state and needs to be lowered, the driving component 22 drives the curtain 21 to move downward. During the downward movement, the driving component 22 drives the horizontally positioned curtain 21 to be vertically lowered until the curtain 21 blocks the front side of the tool change bracket 1.

[0050] The present utility model is provided with a curtain 21 on the tool changing bracket 1, and the curtain 21 is driven by a driving component 22 to rise and retract or descend and lower. When the curtain 21 is in the retracted state, it covers the upper end surface of the tool changing bracket 1. The retracted state of the curtain 21 refers to Figure 3 . In actual use, it can protect the tool magazine 6 located on the tool magazine bracket 1 from the upper end surface of the tool changing bracket 1. When the curtain 21 is in the lowered state, the curtain 21 separates the tool magazine 6 from the working area, preventing iron filings in the working area from entering the tool magazine 6.

[0051] In one embodiment, referring to Figures 1 to 3 , the driving component 22 includes a curtain motor 221 and a first pulley set. The curtain motor 221 is arranged on the tool changing bracket 1, and specifically can be arranged on the side of the tool changing bracket 1. The first pulley set includes a first pulley 222, a second pulley 223 and a first belt 224 sleeved on the first pulley 222 and the second pulley 223. The first pulley 222 is located inside the tool changing bracket 1 and is connected to the curtain motor 221, and the curtain motor 221 drives the first pulley 222 to rotate. The first pulley 222 and the second pulley 223 are at the same horizontal height, so that the first belt 224 is horizontally arranged. The curtain 21 is a bendable structure, and the curtain 21 is placed on the first belt 224 and moves horizontally following the first belt 224. For example, when the curtain motor 221 is started, it drives the first pulley 222 to rotate, and the first pulley 222 drives the curtain 21 to move horizontally along with the first belt 224. If the curtain 21 is in an upward movement state, after the curtain 21 moves following the first belt 224, it will cover the tool changing bracket 1, playing a role in preventing chips from the tool changing bracket 1 from falling onto the tool magazine 6 from above.

[0052] In one embodiment, referring to Figure 1 and Figure 2 , the driving component 22 further includes a second pulley set. The first pulley set is connected to the curtain motor 221 through the second pulley set, and the curtain motor 221 drives the second pulley set to drive the first pulley set to move. Specifically, the second pulley set includes a third pulley 225, a third pulley 226 and a second belt 227 sleeved on the third pulley 225 and the third pulley 226. The third pulley 225 is connected to the curtain motor 221, and the third pulley 226 is connected to the first pulley 222. By setting the second pulley set, the curtain motor 221 drives the first pulley set to rotate through the second pulley set, and the second pulley set plays a buffering role, making the operation of the first pulley set more stable.

[0053] In one embodiment, referring to Figure 1 and Figure 2, it is possible to drive two sets of pulley groups by setting a pulley. Two belt positions (not marked in the figure) are set on one pulley, and a synchronous belt can be sleeved on each belt position. For example, in this embodiment, the driving component 22 includes a third pulley 225 and a second belt 227. The first pulley 222 includes a first belt position and a second belt position. The first belt 224 is sleeved on the first belt position and the second pulley 223, and the second belt 227 is sleeved on the third pulley 228 and the second belt position. The third pulley 225 is connected to the curtain motor 221. In this way, when the curtain motor 221 is started, it can drive the third pulley 225 to rotate, and the third pulley 225 drives the second belt 227 to move. Since the second belt 227 and the first belt 224 are both sleeved on the first pulley 222, the third pulley 225 can drive the first belt 224 and the second belt 227 to move synchronously. By the way of driving two synchronous belts by one pulley, the structure is more concise and the transmission is smoother.

[0054] In one embodiment, referring to Figure 1 and Figure 2 , the driving component 22 further includes a third pulley group and a transmission rod 231. One end of the transmission rod 231 is connected to the first pulley group, and the other end is connected to the third pulley group. The first pulley group drives the third pulley group to move through the transmission rod 231.

[0055] Specifically, the third pulley group includes a fifth pulley 228, a sixth pulley 229, and a third belt 230 sleeved on the fifth pulley 228 and the sixth pulley 229. The third pulley group is arranged opposite to the first pulley group. Specifically, the fifth pulley 228 is arranged opposite to the first pulley 222, and the sixth pulley 229 is arranged opposite to the second pulley 223. The fifth pulley 228 and the sixth pulley 229 are at the same horizontal height, so that the third belt 230 is horizontally arranged. One end of the transmission rod 231 is connected to the first pulley 222, and the other end of the transmission rod 231 is connected to the fifth pulley 228. The first pulley 222 drives the third pulley group to rotate by driving the transmission rod 231 to rotate.

[0056] One side of the curtain 21 is placed on the first belt 224, and the other end of the curtain 21 is placed on the third belt 230. Referring to Figure 3 , the first belt 224 and the third belt 230 drive the curtain 21 to be retracted or lowered. For example, when the curtain 21 needs to be used, the curtain motor 221 is started. The curtain motor 221 drives the first pulley group to rotate. The first pulley group drives the transmission rod 231 to rotate. The rotation of the transmission rod 231 drives the third pulley group to rotate, so that the first belt 224 and the third belt 230 move synchronously. At this time, the first belt 224 and the third belt 230 drive the curtain 21 to move along the belt moving direction. Since the first belt 224 and the third belt 230 are horizontally arranged, when the curtain 21 is retracted, the curtain 21 covers the tool changing bracket 1. SeeFigure 3 In this state, the curtain 21 functions to prevent chips from entering the tool magazine 6. When the first belt 224 and the third belt 230 move in opposite directions, the curtain 21 is lowered. In this state, the curtain 21 functions to block the tool magazine 6 from the working area, and thus also functions to prevent chips from entering. Refer to Figure 4 .

[0057] In one embodiment, refer to Figure 1 and Figure 2 , the tool magazine protection device further includes a fourth pulley set provided on the tool changing bracket 1. The fourth pulley set includes a seventh pulley 232, an eighth pulley 233 and a fourth belt 234. The seventh pulley 232 is connected to the fifth pulley 228. The eighth pulley 233 is located below the seventh pulley 232. The fourth belt 234 is sleeved on the seventh pulley 232 and the eighth pulley 233. The fourth belt 234 is vertically arranged and is fixedly connected to the side edge of the curtain 21. When the curtain 21 moves up and down, it may shake. By fixedly connecting the fourth belt 234 to the side edge of the curtain 21, the curtain 21 is not likely to shake when moving.

[0058] In one embodiment, refer to Figure 1 and Figure 2 , the curtain mechanism further includes a fixing strip 3 which is arranged along the side edge of the curtain 21 away from the fourth pulley set, and functions to fasten this side of the curtain 21, and can further prevent the curtain 21 from shaking when being retracted or lowered. The fixing strip 3 is of a bendable structure or a soft material, so that it can be bent and move along with the curtain along the first belt 224 and the third belt 230.

[0059] Furthermore, refer to Figure 1 and Figure 2 , the fixing strip 3 is of a rectangular frame structure, and the side edge of the curtain 21 is inserted into the frame of the fixing strip 3. In actual use, with this setting method of the frame, the side of the curtain 21 can be directly inserted into the frame of the fixing strip 3 to achieve the fixing effect on the curtain 21, without the need for fastening structures such as screws or bolts for fixing.

[0060] In one embodiment, refer to Figure 2 , the curtain mechanism 2 further includes a fifth pulley set provided on the tool changing bracket 1. The first pulley 222 has a third belt position (not marked in the figure). The fifth pulley set includes a ninth pulley and a fifth belt. The ninth pulley is located below the first pulley 232. The fifth belt is sleeved on the third belt position and the ninth pulley. The fifth belt is vertically arranged and is fixedly connected to the side edge of the curtain 21 away from the fourth belt 234. Refer to Figure 1, the fifth belt is arranged in the same way as the fourth belt 234 and is fixedly connected to the side of the curtain 21. When the first pulley 222 rotates, it drives the fourth belt 234 and the fifth belt to move together. Both sides of the curtain 21 are provided with belt fastenings, making the movement of the curtain 21 more stable and preventing the curtain 21 from shaking easily during the lifting and lowering process. Since the movement and principle of the fifth pulley group are the same as those of the fourth pulley group, they are omitted in the figure for clarity.

[0061] Furthermore, referring to Figure 1 and Figure 2 , the tool magazine protection device further includes fastening bars, which include a first fastening bar 4 and a second fastening bar 5. The first fastening bar 4 is used to fix the connection between the first belt 224 and the curtain 21, and the second fastening bar 5 is used to fix the connection between the third belt 230 and the curtain 21, achieving the firm connection between the belt and the curtain 21 through the fastening bars.

[0062] Furthermore, referring to Figure 1 and Figure 2 , the tool changing bracket 1 includes a base plate 11, leg components, and rod components. The leg components include a first leg 12 and a second leg 13 that are vertically and spaced apart on the base plate 11. The rod components include a first rod 14 and a second rod 15 that are parallel to each other, and the two ends of the first rod 14 and the second rod 15 are correspondingly arranged on the first leg 12 and the second leg 13. The tool magazine 6 is arranged on the leg components and is located between the base plate 11 and the rod components. The base plate 11, leg components, and rod components form a square frame.

[0063] In another embodiment, referring to Figure 2 and Figure 4 , the present utility model provides a machine tool, which includes the tool changing device of any one of the above and a machine tool body 7. The machine tool body 7 includes a base 71, a gantry column 73, and a workbench 72 arranged on the base 71. The workbench 72 is arranged in the working area on the base 71, and the tool magazine protection device is arranged on the side of the gantry column 73 away from the workbench 72; a tool magazine 6 is arranged on the tool changing bracket. When the curtain 21 is in the lowered state, it isolates the area of the tool magazine 5 from the workbench 72.

[0064] The beneficial effects of the present utility model at least include:

[0065] 1. The first belt 224 and the third belt 230 are horizontally arranged. The two sides of the curtain 21 are correspondingly placed on the first belt 224 and the third belt 230 and can move horizontally along with the first belt 224 and the third belt 230, so as to avoid iron filings from falling onto the tool magazine 6 from above when the curtain 21 is retracted; when the curtain 21 is lowered, it isolates the tool magazine 6 from the working area, preventing iron filings in the working area from entering the tool magazine 6.

[0066] 2. The door that can move horizontally along with the belt is different from the traditional rolling door curtain 21. The traditional rolling door is retracted by rolling up the door curtain 21, and the rolled-up door curtain 21 will increase its diameter and occupy a large space, making the overall volume of the machine tool larger.

[0067] 3. The lifting door curtain 21 of the present utility model is different from the traditional sliding door or rolling door. The sliding door needs to be provided with a track for the door body to slide, and chips are likely to accumulate in the track and it is inconvenient to clean. The protective door of the present utility model can not only play a protective role in both retracting and direction, but also has no problem of chip accumulation in the track.

[0068] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A tool magazine protection device, characterized in that: include: Tool changing bracket (1); A door curtain mechanism (2), comprising a door curtain (21) and a driving component (22) arranged on the tool changing bracket (1), wherein the driving component (22) drives the door curtain (21) to be folded up or lowered; When the door curtain (21) is in a lowered state, it blocks the side surface of the tool changing bracket (1); when the door curtain (21) is in a retracted state, it covers the upper end surface of the tool changing bracket (1).

2. The tool magazine protection device according to claim 1, characterized in that: The driving component (22) comprises: A door curtain motor (221) is arranged on the tool changing bracket (1); A first pulley group comprises a first pulley (222), a second pulley (223) and a first belt (224) sleeved on the first pulley (222) and the second pulley (223), wherein the first pulley (222) is connected to the door curtain motor (221), and the door curtain motor (221) drives the first pulley (222) to rotate; The first belt (224) is arranged horizontally, the door curtain (21) is a bendable structure, and the door curtain (21) is placed on the first belt (224) and moves horizontally following the first belt (224).

3. The tool magazine protection device according to claim 2, characterized in that: The driving component (22) further comprises: A second pulley group, wherein the first pulley group is connected to the door curtain motor (221) via the second pulley group, the second pulley group comprises a third pulley (225), a fourth pulley (226) and a second belt (227) sleeved on the third pulley (225) and the fourth pulley (226), the third pulley (225) is connected to the door curtain motor (221), and the fourth pulley (226) is connected to the first pulley (222).

4. The tool magazine protection device according to claim 2, characterized in that: The driving component (22) also includes a third pulley (225) and a second belt (227); the first pulley (222) is provided with a first belt position and a second belt position; the first belt (224) is sleeved on the first belt position; the third pulley (225) is connected to the door curtain motor (221); and the second belt (227) is sleeved on the third pulley (225) and the second belt position.

5. The tool magazine protection device according to claim 3 or 4, characterized in that: The driving component (22) further comprises: A third pulley group is arranged on the tool changing bracket (1) and is arranged opposite to the first pulley group, the third pulley group comprising a fifth pulley (228), a sixth pulley (229) and a third belt (230) sleeved on the fifth pulley (228) and the sixth pulley (229); A transmission rod (231) has one end connected to the first pulley (222) and the other end connected to the fifth pulley (228). The third belt (230) is arranged horizontally. The side of the door curtain (21) away from the first belt (224) is laid on the third belt (230) and moves horizontally following the third belt (230).

6. The tool magazine protection device according to claim 5, characterized in that: The door curtain mechanism (2) further comprises a fourth pulley group arranged on the tool changing bracket (1), the fourth pulley group comprising: a seventh pulley (232), connected to the fifth pulley (228); An eighth pulley (233), located below the seventh pulley (232); The fourth belt (234) is sleeved on the seventh pulley (232) and the eighth pulley (233). The fourth belt (234) is vertically arranged and is firmly connected to the side of the door curtain (21).

7. The tool magazine protection device according to claim 6, characterized in that: The door curtain mechanism also includes: A fixing strip (3) is arranged along an edge of the door curtain (21) away from the fourth pulley set.

8. The tool magazine protection device according to claim 6, characterized in that: The door curtain mechanism (2) further comprises a fifth pulley group arranged on the tool changing bracket (1), the first pulley (222) further being provided with a third belt position, the fifth pulley group comprising: A ninth pulley, located below the first pulley (222); A fifth belt is sleeved on the third belt position and the ninth belt pulley. The fifth belt is vertically arranged and is firmly connected to the side of the door curtain (21) away from the fourth belt (234).

9. The tool magazine protection device according to claim 5, characterized in that: The tool magazine protection device also includes a first fastening strip (4) and a second fastening strip (5), wherein the first fastening strip (4) is used to fix the connection between the first belt (224) and the door curtain (21), and the second fastening strip (5) is used to fix the connection between the third belt (230) and the door curtain (21).

10. A machine tool, characterized in that: It comprises a tool magazine protection device and a machine tool body (7) as described in any one of claims 1 to 9, wherein the machine tool body (7) comprises a base (71) and a gantry column (73) and a workbench (72) arranged on the base (71), and the tool magazine protection device is arranged on a side of the gantry column (73) away from the workbench (72); a tool magazine (6) is arranged on the tool changing bracket, and when the door curtain (21) is lowered, the area of ​​the tool magazine (6) and the workbench (72) are isolated.

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