TWM643779U - Linear guide braking apparatus - Google Patents

Abstract

Embodiments of the utility model provide a linear guide braking apparatus, which is adapted to brake a linear guide of a belt transmission device. The linear guide braking apparatus includes a sliding base, a plurality of screws, a rabbet, and a brake lever. The sliding base has a plurality of screw holes. The screws are respectively adapted to the screw holes of the sliding base, so as to fix the sliding base on the belt transmission device. The rabbet is in the shape of an inverted U-shape with magnetic attraction, and is configured between the sliding table and one of the two end caps and is parallel to the sliding base. The brake lever is magnetic attraction and fits in the rabbet. When the linear guide is braked, the rabbet is demagnetized, so that the brake lever is separated from the rabbet and inserted into one of the screw holes.

Description

Linear slide brake device

The present invention relates to a brake device of a linear slide rail, and in particular to a brake device of a linear slide rail which achieves the braking effect through the tenon function of an internal brake mechanism.

The creator of this new model mentioned "speed detection device" in the new patent announcement number M626883. At that time, the creator's new creation was to detect the running speed of the driven wheel by setting a speed detecting unit on the driven wheel (or idler wheel), and compare the running speed of the driven wheel with the running speed of the driving wheel. When the speed detecting device judges that the two are inconsistent, it is inferred that the belt of the belt transmission device is worn.

In order to avoid the risk of belt breakage caused by the continued operation of the worn belt, and thus the risk of equipment damage, the creators of this new model are constantly striving for perfection. In addition to stopping the motor to detect or replace the belt, a linear slide rail braking device is also provided in this case, so that the inside of the belt transmission device will also activate the braking mechanism, so that the slide table stops and cannot continue to move.

In order to enable the belt drive to brake not only through the stop of the motor, but also through the internal mechanism of the belt drive, the embodiment of the present invention provides a linear slide brake device, which is adapted to brake the linear slide of the belt drive, and the linear slide includes a slide The sliding platform mechanism includes a sliding platform and two fixing devices, and the two fixing devices are respectively arranged at two ends of the sliding platform. The linear sliding rail braking device includes a track, a plurality of screws, a slot, and a brake lever. The track has a plurality of screw holes. The screws are adapted respectively to the screw holes of the track to fix the track to the belt transmission device. The embedding groove is ㄇ-shaped or inverted U-shaped, and has magnetic attraction, and is arranged between the slide table and one of the two fixing devices, and is parallel to the track. The brake lever is a magnetic attraction and fits in the slot. Wherein, when the linear slide rail brakes, the slot is demagnetized, so that the brake lever is separated from the slot and inserted into one of the screw holes.

Another object of the present invention is to provide a braking device for a linear slide rail, which is adapted to brake a linear slide rail of a belt transmission device. The linear slide rail includes a sliding table mechanism, and the sliding table mechanism includes a sliding table and two fixing devices. The rotational speed detection device includes a rotational speed detection unit, a rotational speed comparator and a control unit. The rotational speed detection unit is arranged on an idler wheel of the linear slide rail device, and is used for sensing the running speed of the idler wheel. The rotational speed comparator is connected to the rotational speed detection unit for comparing the running speed of the idler wheel with a set speed value to generate a difference value, wherein the set speed value is the rotational speed value of the driving wheel of the linear slide rail device. The signal of the control unit is connected to the speed comparator, and when the difference value is greater than the set difference value, a warning signal is generated to notify that the belt has been worn. The track has a plurality of screw holes. The screws are adapted respectively in the screw holes to fix the track on the belt transmission device. The embedding groove is ㄇ-shaped or inverted U-shaped, has magnetic attraction, is arranged between the slide table and one of the two fixing devices, and is parallel to the track. The brake lever is a magnetic attraction and fits in the slot. Wherein, when the linear slide rail is braked, the slot is demagnetized so that the brake lever is separated from the slot, and the brake lever is inserted into one of the screw holes.

In short, the linear sliding rail brake device provided by the embodiment of the present invention is installed inside the belt transmission device, and is used together with the speed detection device. When the detection signal is normal, the brake lever is retracted when the belt transmission motor is running. In this way, the slide table can smoothly slide on the track. When the speed detection device detects that the signal is abnormal, in addition to enabling the motor to start the brake function, the originally retracted brake lever will pop out quickly and penetrate into the screw hole, resulting in the slide table cannot move. Force the sliding table to stop sliding, so as to avoid the damage and breakage of the belt transmission device, or prevent the equipment from continuing to move down due to the influence of gravity and hanging heavy objects, which will cause pressure damage to the equipment below.

In order to make the above and other objectives, features and advantages of the new embodiment of the present invention more comprehensible, a detailed description is given below with reference to the accompanying drawings.

100, 200, 300: linear slide brake device

110: slide mechanism

AA': hatching

112: sliding table

114A, 114B: embedded groove

116A, 116B: brake lever

117A, 117B: spring

118A, 118B: Fixtures

120, 220: electromagnet brake mechanism

121: track

122: screw hole

124: screw

125: space

132: idler

134: drive wheel

140: belt

150, 250, 350: belt drive

510: Speed detection device

512: Speed detection unit

514: Speed comparator

516: control unit

518:Control server

520: motor

The accompanying drawings are provided to enable those having ordinary knowledge in the technical field of the present invention to further understand the present invention, and are incorporated and constitute a part of the description of the present invention. The drawings illustrate exemplary embodiments of the invention and, together with the description of the invention, serve to explain the principle of the invention.

Fig. 1A is a three-dimensional schematic diagram of a belt transmission device of a linear slide brake device according to an embodiment of the present invention; Fig. 1B is a schematic cross-sectional view taken with the AA' section line in Fig. 1A; Fig. 2A is a schematic cross-sectional view of a linear slide brake device according to the first embodiment of the present invention before braking; Fig. 2B is a schematic cross-sectional view of a linear slide brake device according to the first embodiment of the present invention during braking; 3 is a schematic cross-sectional view of a linear slide brake device according to the first embodiment of the present invention where the screw fits in the screw hole; FIG. 4A is a schematic cross-sectional view of a linear slide brake device according to the second embodiment of the present invention before braking; FIG. 4B is a schematic cross-sectional view of a linear slide brake device according to the second embodiment of the present invention during braking; FIG. A schematic cross-sectional view of a linear sliding rail brake device according to the third embodiment of the new model during braking; and FIG. 6 is a functional block diagram of a rotational speed detection device applied to a belt transmission according to the third embodiment of the new model.

In order to enable those skilled in the art to further understand the technical features, content and advantages of the invention and the effects it can achieve, the content of the invention will be described in detail below in the form of appropriate embodiments in conjunction with drawings. The embodiments are only for illustration and assistance in explaining the invention of the invention, and do not limit the scope of rights of the invention in actual embodiments.

In order to prevent the worn belt from continuing to run in the belt transmission device and cause the belt to break and further cause damage to the equipment, this new model provides a linear slide rail brake device, through which the linear slide rail The brake device makes the inside of the belt drive device also activate the brake mechanism, thereby making the sliding table stop and cannot continue to move.

First, the actuating mechanism of the linear slide brake device will be described. Please refer to FIG. 1A and FIG. 1B at the same time. FIG. 1A is a three-dimensional schematic diagram of a belt drive device of a linear slide rail braking device according to an embodiment of the present invention.

The novel linear slide rail braking device 100 is adapted to the linear slide rail of the belt transmission device 150 to brake the linear slide rail. The linear slide rail includes a sliding table mechanism 110, and the sliding table mechanism 110 includes a sliding table 112 and two fixing devices 118A, 118B, and the two fixing devices 118A, 118B are respectively arranged at two ends of the sliding table 112, and the linear sliding rail brake device 100 includes a track 121, a plurality of screws (Fig. 2A, 124), a slot 114A and a brake lever 116A, and 121 has a plurality of screw holes 122 . Wherein, it should be particularly noted that, in FIG. 1B , the sliding table mechanism 110 is shown as a dotted square frame, and the track 121 provided for the sliding table mechanism 110 to perform sliding operation is shown as a dotted line square frame.

It is worth noting that the fixing devices 118A, 118B can be, for example, belt clamping devices, or can be equipped with end covers, for example, so as to realize the traction of the belt 140 of the belt transmission device 150 .

Next, to further describe the first embodiment of the present invention, please refer to FIG. 2A and FIG. 2B at the same time. FIG. 2A is a schematic cross-sectional view of a linear slide rail braking device according to the first embodiment of the present invention before braking, and FIG. 2B is a schematic cross-sectional view of a linear slide rail braking device according to the first embodiment of the present invention during braking.

The screw hole 122 of the track 121 of the linear slide brake device 100 is fitted with a plurality of screws 124 to fix the track 121 on the belt transmission device 150 . Wherein, it should be noted that in FIG. 2A and FIG. 2B , in order to avoid confusion caused by too many square boxes and lines indicating component symbols, therefore, the track 121 is not framed, and the screw hole 122 is not specifically indicated, and in the content described later, if some content is omitted, it is also based on this reason, and is not used to limit the implementation of the present invention.

The electromagnet brake mechanism 120 of the linear slide brake device 100 is further introduced. In addition, there can be one or two sets of linear slide brake devices 100, that is, there can be one or two electromagnet brake mechanisms 120. Although Fig. 2A and Fig. 2B both show electromagnet brake mechanisms 120, they are only for illustration, and the present invention is not limited thereto.

Because the running direction of the belt 140 of the belt drive 150 can be shifted from the left to the right in Fig. 2A, or run from the right to the left, the present invention does not limit the direction of the belt running of the belt drive 150. When the electromagnet braking mechanism 120 of the linear slide rail braking device 100 has only one set, the running direction of the belt 140 of the belt transmission device 150 can run from the left to the right in FIG. And when the running direction of the belt 140 of the belt transmission device 150 can run from the right to the left in FIG. 2A, it is only shown in the right half of FIG. 2A and FIG. 2B.

In this embodiment, it is taken as an example that the belt 140 of the belt transmission device 150 runs from left to right in FIG. 2A . Therefore, please refer to the left half of FIG. 2A and FIG. 2B . The embedding groove 114A is U-shaped or inverted U-shaped, and the shape of the embedding groove 114A may be related to the shape of the brake rod 116A. Moreover, the embedding groove 114A has magnetic attraction, and the embedding groove 114A is disposed on the sliding platform 112 and the fixing device 118A. between and parallel to the track 121. In addition, the brake rod 116A is a magnetic element, and fits in the slot 114A.

In this embodiment, the linear slide rail is installed horizontally. When the linear slide rail of the belt drive 150 brakes through the electromagnet braking mechanism 120, the magnetic attraction of the slot 114A disappears (degaussing), so that the brake lever 116A is separated from the slot 114A, and due to gravity, the brake lever 116A will fall into one of the screw holes 122 after being separated from the slot 114A, as shown in the left half of FIG. 2B. Moreover, since a plurality of screw holes 122 are set up, even if the brake lever 116A cannot be inserted immediately under the brake lever 116A to slide forward due to inertia, the brake lever 116A will be inserted into the next screw hole 122 to perform braking.

In addition, as shown in FIG. 3 , FIG. 3 is a schematic cross-sectional view of a linear slide rail braking device according to the first embodiment of the present invention, in which the screws fit into the screw holes. It is worth noting that the screw 124 is a low-head screw, so as to provide a suitable space 125 in the upper half of the screw hole 122 for the brake rod 116A to insert when the linear slide rail brakes. The above-mentioned suitable space 125 means that when the brake lever 116A falls into the space 125, the entire brake lever 116A will just occupy the space 125, or the lower part of the brake lever 116A will occupy the space 125, so that when the belt 140 of the belt drive 150 is still moving forward even under the influence of inertia, the linear slide rail can still stop due to the space 125 occupied by the brake lever 116A. Wherein, in the aforementioned FIG. 2B , the later-described FIG. 4B and FIG. 4B , the lower part of the brake lever 116A occupies the space 125 after the brake lever 116A falls into the space 125 as an example, but the present invention is not limited thereto.

According to another implementation of the first embodiment of the present invention, when there are two electromagnet brake mechanisms 120 , the linear slide brake device 100 further includes another slot 114B and another brake lever 116B. The embedding groove 114B is ㄇ-shaped or inverted U-shaped, and has magnetic attraction, and the embedding groove 114B is arranged on the slide table 112 between the fixing device 118B and parallel to the track 121 . The brake lever 116B is also a magnetic component, and fits in the slot 114B.

Similarly, when the linear slide rail of the belt drive 150 brakes through the electromagnet brake mechanism 120, the magnetic attraction of the slot 114B disappears (demagnetizes), so that the brake lever 116B is separated from the slot 114B, and, due to gravity, after the brake lever 116B is separated from the slot 114B, it will fall into one of the screw holes 122, as shown in the right half of FIG. 2B.

In addition, to further describe the second embodiment of the present invention, please refer to FIGS. 4A and 4B . FIG. 4A is a schematic cross-sectional view of a linear slide brake device according to the second embodiment of the present invention before braking, and FIG. 4B is a schematic cross-sectional view of a linear slide brake device according to the second embodiment of the present invention during braking.

In addition, the linear slide brake device 200 provided with springs 117A and/or 117B can be one group or two groups, that is, there can be one or two electromagnet brake mechanisms 220, although Fig. 4A and Fig. 4B all draw two electromagnet brake mechanisms 220, but only for illustration, and the present invention is not limited thereto.

Because the running direction of the belt 140 of the belt drive 250 can be shifted from the left to the right in FIG. 4A , or run from the right to the left, the present invention does not limit the direction of the belt of the belt drive 250. But when the electromagnet braking mechanism 220 of the linear slide rail braking device 100 has only one set, the running direction of the belt 140 of the belt transmission device 250 can run from the left to the right in FIG. And when the running direction of the belt 140 of the belt drive 250 runs from the right to the left in FIG. 4A, it is only shown in the right half of FIGS. 4A and 4B.

In this embodiment, the linear slide rail is installed horizontally or vertically. And this embodiment is an example when the belt 140 of the belt transmission device 250 runs from the left to the right in FIG. 4A . Therefore, please refer to the left half of FIG. 4A , a spring 117A is disposed in the slot 114A of the linear slide brake device 200 , and the spring 117A is disposed between the bottom of the slot 114A and the brake lever 116A.

When the linear slide rail of the belt transmission device 250 brakes through the electromagnet braking mechanism 220, the magnetic attraction of the slot 114A disappears (demagnetizes), and the spring 117A is released, so that the elastic potential energy of the spring 117A is converted into kinetic energy to push the brake lever 116A. In this way, when the brake lever 116A is separated from the slot 114A, it will be inserted into or dropped into one of the screw holes 122, as shown in FIG. 4B left half shown.

According to yet another implementation of the second embodiment of the present invention, when there are two electromagnet brake mechanisms 220 , the linear slide brake device 200 includes another slot 114B, another brake lever 116B and another spring 117B. The embedding groove 114B is U-shaped or inverted U-shaped, and has magnetic properties. The embedding groove 114B is disposed between the sliding table 112 and the fixing device 118B, and is parallel to the track 121 . The brake lever 116B is also a magnetic component, and fits in the slot 114B. Moreover, the spring 117B is disposed between the bottom of the slot 114B and the brake lever 116B.

Similarly, when the linear slide rail of the linear slide rail braking device 200 brakes, the magnetic attraction of the slot 114B disappears (demagnetizes), and the spring 117B is released, so that the elastic potential energy of the spring 117B is converted into kinetic energy to push the brake lever 116B. In this way, when the brake lever 116B is separated from the slot 114B, it will be inserted or dropped into one of the screw holes 122, as shown in the right half of FIG. 4B .

Another object of the present invention is to provide a linear slide brake device 300, please refer to FIG. 5A, FIG. 5B and FIG. 6 at the same time. FIG. 5A is a linear slide according to the third embodiment of the present invention 5B is a schematic cross-sectional view of a linear slide rail braking device according to the third embodiment of the present invention during braking. FIG. 6 is a functional block diagram of a rotational speed detection device applied to a belt transmission according to the third embodiment of the present invention.

As shown in FIG. 5A and FIG. 5B , the linear slide rail brake device 300 is adapted to brake the linear slide rail of the belt transmission device 350 through the electromagnet brake mechanism 120 , wherein the belt transmission device 350 includes a sliding table mechanism 110 .

When the rotating speed detection unit 512 arranged on the idler 132 of the belt drive 350 detects that the running speed of the idler 132 is different from that of the driving wheel 134, the belt 140 of the belt drive 350 will be stopped by stopping the motor 520 on the one hand, and the linear slide will be braked through the electromagnet braking mechanism 120 of the linear slide brake device 300 on the other hand. The detailed description of the operation of the electromagnet braking mechanism 120 is as follows.

As shown in FIG. 5A and FIG. 5B , the linear slide brake device 300 includes a rotational speed detection device 510 , a track 121 , a slot 114A and a brake rod 116B. Wherein, the rotational speed detection device 510 is used for detecting the wear condition of the belt 140 of the belt transmission device 350 , and the rotational speed detection device includes a rotational speed detection unit 512 , a rotational speed comparator 514 and a control unit 516 .

To further illustrate, as shown in FIG. 6 , the rotation speed detection device 510 is arranged on the idler pulley 132 of the belt transmission device 350, and is used to sense the running speed of the idler pulley 132 through the rotation speed detection unit 512, wherein the running speed refers to the number of revolutions of the motor 520 or the idler pulley 132 in a unit time, or refers to the linear movement distance of the belt 140 in a unit time. The rotational speed comparator 514 is connected to the rotational speed detection unit 512 for comparing the running speed of the idler pulley 132 with a set speed value, wherein the set speed value is the rotational speed value of the driving wheel 134 of the belt transmission device 350 , and generates a difference. Next, the aforementioned control The signal of the control unit 516 is connected to the rotational speed comparator 514. When the above-mentioned difference value is greater than the set difference value, a warning signal is generated, indicating that the belt 140 of the belt drive 350 has been worn.

In addition, the rotational speed detection device 510 further includes a control server 518, and the control server 518 is connected to the rotational speed comparator 514 and the control unit 516 for receiving a warning signal. When the control server 518 receives a warning signal indicating that the belt 140 of the belt drive 350 has been worn, it will stop the motor 520 of the belt drive 350 . The motor 520 is a servo motor with a brake or a stepper motor with a brake.

The electromagnet braking mechanism 120 of the linear slide rail braking device 300 and the stop operation of the motor 520 can be started simultaneously or sequentially, and the linear slide rail braking device 300 is connected to the control server 518 with a signal, and the electromagnet braking mechanism 120 has been described in the foregoing content, and only a brief description is given here.

According to the third embodiment of the present invention, when there is only one electromagnet braking mechanism 120, as shown in the left half of FIG. 5B, when the control server 518 requests the activation of the electromagnet braking mechanism 120 of the linear slide brake device 300, the slot 114A is demagnetized, so that the brake rod 116A, which is magnetically attracted in the slot 114A, falls into the space 125 formed by the screw hole 122 and the lower head screw due to gravity or spring force.

Wherein, the belt 140 of the belt transmission device 350 may still slide forward due to the force of inertia, but the brake lever 116A will be stuck between the space 125 formed by the screw hole 122 and the lower head screw and the slot 114A.

In addition, as mentioned above, the linear sliding rail braking device 300 disposed in the belt transmission device 350 may be one or two groups, that is, realized by one or two electromagnet braking mechanisms 120 or 220 .

It can be understood that, although the electromagnet braking mechanism 120 in FIG. 5A and FIG. 5B is an example, the present embodiment can also be realized through the electromagnet braking mechanism 220, as described in another implementation manner of the first embodiment and another implementation manner of the second embodiment described above, so details are not repeated here.

To sum up the above, this new type of linear slide rail braking device is installed inside the belt transmission device, and is used with the speed detection device. When the detection signal is normal, the brake lever is retracted when the belt transmission motor is running. In this way, the slide table can slide normally on the track. When the speed detection device detects an abnormal signal, in addition to enabling the motor to start the brake function, the originally retracted brake lever will pop out quickly and penetrate into the screw hole, causing the slide table to fail to move and forcing the slide table Stop sliding to prevent the belt drive from being damaged and broken, or to prevent the equipment from continuing to move down due to the influence of gravity and hanging heavy objects, which will cause pressure damage to the equipment below.

In addition, in order to realize the new type of linear slide rail brake device, the lower head screw is set in the screw hole to create a suitable size space for the brake rod, so that the brake rod and lower head screw of the electromagnet brake mechanism are arranged more cleverly, so as to achieve the technical effect of making the slide table unable to move and forcing the slide table to stop sliding.

The present invention has been disclosed above with preferred embodiments, but those skilled in the art should understand that the above embodiments are only used to describe the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that all changes and replacements equivalent to those of the foregoing embodiments should be included in the scope of the present invention. Therefore, the scope of protection of the present invention shall prevail as defined by the scope of the patent applied for.

100: Linear slide brake device

110: slide mechanism

112: sliding table

114A, 114B: embedded groove

116A, 116B: brake lever

118A, 118B: Fixtures

121: track

122: screw hole

132: idler

134: drive wheel

140: belt

150: Belt drive

AA': hatching

Claims (10)

A linear slide rail braking device is adapted to brake a linear slide rail of a belt transmission device. The linear slide rail includes a sliding table mechanism, and the sliding table mechanism includes a sliding table and two fixing devices. The two fixing devices are respectively arranged at two ends of the sliding table. The linear sliding rail braking device includes: a rail with a plurality of screw holes; a plurality of screws respectively adapted to the screw holes of the rail to fix the rail on the belt transmission device; Or inverted U-shaped, with magnetic attraction, arranged between the slide table and one of the two fixing devices, and parallel to the track; and a brake lever, which is a magnetic attraction, and fits in the slot; wherein, when the linear slide rail is braked, the slot is demagnetized, so that the brake lever is separated from the slot, and the brake lever is inserted into one of the screw holes. The braking device for a linear slide rail as described in claim 1, further comprising: another slot, which is ㄇ-shaped or inverted U-shaped, has magnetic attraction, is arranged between the slide table and the other of the two fixing devices, and is parallel to the track; and another brake lever, which is another magnetic attraction piece, and fits in the other slot; wherein, when the linear slide rail is braked, the other slot is demagnetized, so that the other brake lever is separated from the other slot, and inserted into the screw holes. one. The linear slide rail brake device according to claim 2, wherein the screws are low head screws. The linear slide rail brake device as described in claim 1 further includes: A spring is arranged between the bottom of the slot and the brake lever. The linear slide rail brake device as claimed in Claim 2 further includes: another spring disposed between the bottom of the other slot and the other brake lever. A linear slide rail brake device is adapted to brake a linear slide rail of a belt transmission device. The linear slide rail includes a sliding table mechanism, and the slide table mechanism includes a slide table and two fixing devices. The two fixing devices are respectively arranged at two ends of the sliding table. a rotational speed of the wheel; a rotational speed comparator, signal-connected to the rotational speed detection unit, for comparing the rotational speed of the idler wheel with a set speed value, and generating a difference value, wherein the set speed value is a rotational speed value of a drive wheel of the linear slide rail device; and a control unit, signal-connected to the rotational speed comparator, when the difference value is greater than a set difference value, a warning signal is generated to notify that the belt has been worn; a track has a plurality of screw holes; a plurality of screws are respectively adapted to the screw holes, to fix the track on the belt transmission device; a slot, which is ㄇ-shaped or inverted U-shaped, has magnetic attraction, is arranged between the slide table and one of the two fixing devices, and is parallel to the track; and a brake lever, which is a magnetic component, is fitted in the slot; Wherein, when the linear slide rail is braked, the slot is demagnetized so that the brake lever is separated from the slot, and the brake lever is inserted into one of the screw holes. The braking device for a linear slide rail as described in claim 6, further comprising: one other slot, which is ㄇ-shaped or inverted U-shaped, has magnetic attraction, is arranged between the slide table and the other of the two fixing devices, and is parallel to the track; and another brake lever, which is the magnetic attraction part, and fits in the slot; wherein, when the linear slide rail is braked, the other slot is demagnetized, so that the other brake lever is separated from the other slot, and the other brake lever is inserted into the slot One of the screw holes. The linear sliding rail braking device as claimed in claim 7 further includes: a spring disposed between the bottom of the slot and the brake lever; and another spring disposed between the bottom of the other slot and the brake lever. The linear slide rail brake device as described in claim 8 further includes: a control server, the signal is connected to the rotational speed comparator and the control unit, and according to the warning signal, one motor of the linear slide rail device is stopped; wherein, the control servo signal is connected to the linear slide rail brake device, and the control server demagnetizes the slot so that the brake lever is separated from the slot, and the brake lever is inserted into one of the screw holes; and the control server demagnetizes the other slot to make the other The brake lever is separated from the other slot, and the other brake lever is inserted into one of the screw holes. The linear slide rail brake device as claimed in item 7, wherein the screws are low head screws.