Servo driving module with sudden stop function

Abstract

The utility model discloses a servo driving module with an emergency stop function, and belongs to the technical field of servo driving modules. The servo driver comprises a servo driver body and a cable inserted into the connecting end of the servo driver body, the front face of the servo driver body is provided with a shifting structure, the top of the servo driver body is provided with a transmission structure located on the inner side of the shifting structure, the shifting structure comprises a connecting block arranged on the top of the servo driver body, and the connecting block is connected with the transmission structure. The connecting block is fixedly connected with the servo driver, and the interior of the connecting block is movably connected with a transmission rod through a bearing. The transmission structure drives the push rod to swing with the transmission rod as the axis, the push rod can extrude the cable in the swing process, when the cable is not in contact with the servo driver, the effect of blocking signals and stopping the machine is achieved, the structural functionality of an existing servo driver can be improved, and the service life of the servo driver is prolonged. And the servo driver can timely block and stop the information, so that the shutdown response speed is prevented from being influenced by time consumed in the signal transmission process.

Description

Technical Field

[0001] The utility model belongs to the technical field of servo drive modules, in particular to a servo drive module with an emergency stop function. Background Art

[0002] A servo drive is a controller used to control a servo motor. Its function is similar to that of a frequency converter on an ordinary AC motor. It is part of a servo system and is mainly used in high-precision positioning systems.

[0003] The servo drive needs to be connected to the device through a cable during use. For example, the patent number disclosed on the China Patent Network is: 201920329720.0, and the patent name is: Servo drive, including a base plate, an upper cover and a circuit board. The upper cover is detachably connected to the base plate, and the circuit board is fixedly mounted on the surface of the base plate. The first end of the circuit board is provided with two communication ports, a clutch port and an input / output port, and the second end of the circuit board is provided with a power line port and an encoder port. The upper surface of the upper cover is also provided with a light guide column for displaying the operating status of the servo drive, and a dip switch for setting the master-slave relationship of the servo drive is installed on one side close to the light guide column, which improves the convenience of wiring and installation of the servo drive, reduces the size of the servo drive, and reduces the preparation cost.

[0004] However, the structure of the existing servo drive is relatively simple. When an unexpected situation occurs and the machine needs to be shut down, the servo drive needs to send a signal and block the information to stop. The time consumed in the signal transmission process can easily affect the shutdown response speed.

[0005] Therefore, it is necessary to redesign the servo drive module with emergency stop function. Utility Model Content

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a servo drive module with an emergency stop function, which has the advantage of improving the emergency stop efficiency and solves the problem that the structure of the existing servo drive is relatively simple. When an unexpected situation occurs and shutdown is required, the servo drive needs to send a signal and block the information to stop. The time consumed in the signal transmission process can easily affect the shutdown response speed.

[0007] The utility model provides the following technical solution: a servo drive module with an emergency stop function, comprising a servo driver;

[0008] The cable plugged into the servo drive connection end;

[0009] The front side of the servo driver is provided with a toggle structure;

[0010] The top of the servo drive is provided with a transmission structure located inside the toggle structure;

[0011] The toggle structure includes a connecting block arranged on the top of the servo driver, the connecting block is fixedly connected to the servo driver, the interior of the connecting block is movably connected to a transmission rod through a bearing, the surface of the transmission rod is fixedly connected to a push rod located on the inner side of the connecting block, the push rod extends away from the side of the transmission rod to between the cable and the servo driver, and the transmission structure can drive the push rod to swing.

[0012] The transmission structure includes a screw rod movably connected to the top of the servo driver through a bearing, a screw sleeve is threadedly connected to the surface of the screw rod, both ends of the transmission rod are fixedly connected to a sleeve plate located on the outside of the connecting block, the sleeve plate extends to the outside of the sleeve away from the side of the transmission rod, and the left and right sides of the sleeve are fixedly connected to a sliding rod, the sliding rod is located inside the sleeve plate, and the sliding rod is slidably connected to the sleeve plate.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The utility model drives the push rod to swing with the transmission rod as the axis through the transmission structure. The push rod can squeeze the cable during the swinging process. When the cable is out of contact with the servo driver, the signal is blocked and the machine is shut down. The structural functionality of the existing servo driver can be improved. The servo driver can block and stop the information in time to prevent the shutdown response speed from being affected due to the time consumed in the signal transmission process.

[0015] 2. The utility model can promote the push rod to swing stably by arranging the screw rod, the screw sleeve, the sleeve plate and the slide rod, and can flexibly control the swing angle of the push rod.

[0016] 3. The utility model can support the screw rod by providing a support plate, thereby increasing the contact area between the screw rod and the servo driver.

[0017] 4. The utility model can limit the screw sleeve by setting the limit groove and the limit rod to prevent the screw sleeve from tilting during the movement.

[0018] 5. The utility model can automatically drive the screw to rotate by setting a transmission motor, thereby improving the automation level of the servo drive.

[0019] 6. The utility model can improve the safety of the servo drive and reduce the contact area between the transmission structure and the external environment by providing a protective cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the partial structure of the utility model.

[0022] Figure 3 It is a rear view schematic diagram of the local structure of the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] like Figures 1 to 3 As shown, the servo drive module of this embodiment includes a servo drive 1; a cable 2 plugged into the connection end of the servo drive 1; a toggle structure 3 is arranged on the front of the servo drive 1; a transmission structure 4 located on the inner side of the toggle structure 3 is arranged on the top of the servo drive 1; the toggle structure 3 includes a connecting block 5 arranged on the top of the servo drive 1, the connecting block 5 is fixedly connected to the servo drive 1, the interior of the connecting block 5 is movably connected with a transmission rod 6 through a bearing, the surface of the transmission rod 6 is fixedly connected with a push rod 7 located on the inner side of the connecting block 5, the push rod 7 extends away from the side of the transmission rod 6 to between the cable 2 and the servo drive 1, and the transmission structure 4 can drive the push rod 7 to swing.

[0025] refer to Figure 2 The transmission structure 4 includes a screw rod 8 movably connected to the top of the servo driver 1 through a bearing, and a screw sleeve 9 is threadedly connected to the surface of the screw rod 8. Both ends of the transmission rod 6 are fixedly connected to a sleeve plate 10 located on the outside of the connecting block 5. The sleeve plate 10 extends to the outside of the sleeve 9 away from the side of the transmission rod 6. The left and right sides of the sleeve 9 are fixedly connected with a sliding rod 11, which is located inside the sleeve plate 10 and is slidably connected to the sleeve plate 10.

[0026] This embodiment can promote the push rod 7 to swing stably by arranging the screw rod 8, the screw sleeve 9, the sleeve plate 10 and the slide rod 11, and can flexibly control the swing angle of the push rod 7.

[0027] refer to Figure 2 A support plate 12 is fixedly connected to the top of the servo driver 1 . The support plate 12 is located on the back of the screw rod 8 . The side of the support plate 12 away from the servo driver 1 is sleeved on the surface of the screw rod 8 .

[0028] In this embodiment, the support plate 12 is provided to support the screw rod 8 , thereby increasing the contact area between the screw rod 8 and the servo driver 1 .

[0029] refer to Figure 3 A limiting groove 13 is provided on the surface of the support plate 12, and a limiting rod 14 located inside the limiting groove 13 is fixedly connected to the back of the screw sleeve 9, and the limiting rod 14 and the limiting groove 13 are slidably connected.

[0030] In this embodiment, the limiting groove 13 and the limiting rod 14 are provided to limit the screw sleeve 9 and prevent the screw sleeve 9 from tilting during the movement.

[0031] refer to Figure 2 A transmission motor 15 is arranged on the top of the support plate 12 , the top end of the screw rod 8 passes through the support plate 12 and extends to the top of the support plate 12 , and the top end of the screw rod 8 is fixedly connected to the output end of the transmission motor 15 .

[0032] In this embodiment, the transmission motor 15 is provided to automatically drive the screw 8 to rotate, thereby improving the automation level of the servo driver 1.

[0033] refer to Figure 1 A protective cover 16 is fixedly connected to the top of the servo driver 1 , the transmission structure 4 is located inside the protective cover 16 , and the transmission motor 15 is fixedly connected to the top of the protective cover 16 .

[0034] In this embodiment, by providing the protective cover 16 , the safety of the servo driver 1 can be improved and the contact area between the transmission structure 4 and the external environment can be reduced.

[0035] The servo driver 1 of the utility model transmits data through the cable 2. When an emergency stop is required, the servo driver 1 controls the transmission motor 15 to start, and the transmission motor 15 drives the screw 8 to rotate. The screw 8 uses the thread to push the screw sleeve 9 to move downward. During the movement of the screw sleeve 9, the slide bar 11 is driven to slide inside the sleeve plate 10. The sleeve plate 10 is squeezed and drives the push rod 7 to swing with the transmission rod 6 as the axis. The push rod 7 can squeeze the cable 2 during the swinging process. When the cable 2 is out of contact with the servo driver 1, the effect of blocking the signal and stopping the machine is achieved.

Claims

1. A servo drive module with an emergency stop function, comprising a servo drive (1); a cable (2) plugged into a connection end of the servo drive (1); characterized in that: The front of the servo driver (1) is provided with a toggle structure (3); the top of the servo driver (1) is provided with a transmission structure (4) located inside the toggle structure (3); The toggle structure (3) comprises a connection block (5) arranged on the top of the servo drive (1), the connection block (5) is fixedly connected to the servo drive (1), the interior of the connection block (5) is movably connected to a transmission rod (6) via a bearing, the surface of the transmission rod (6) is fixedly connected to a push rod (7) located on the inner side of the connection block (5), the push rod (7) extends away from the side of the transmission rod (6) to between the cable (2) and the servo drive (1), and the transmission structure (4) can drive the push rod (7) to swing.

2. A servo drive module with an emergency stop function according to claim 1, characterized in that: The transmission structure (4) comprises a screw rod (8) movably connected to the top of the servo driver (1) through a bearing, a screw sleeve (9) is threadedly connected to the surface of the screw rod (8), both ends of the transmission rod (6) are fixedly connected to a sleeve plate (10) located outside the connection block (5), the sleeve plate (10) extends to the outside of the sleeve plate (9) away from the side of the transmission rod (6), and the left and right sides of the sleeve plate (9) are fixedly connected to a sliding rod (11), the sliding rod (11) is located inside the sleeve plate (10), and the sliding rod (11) is slidably connected to the sleeve plate (10).

3. The servo drive module with emergency stop function according to claim 2, characterized in that: A support plate (12) is fixedly connected to the top of the servo drive (1), the support plate (12) is located on the back side of the screw rod (8), and the side of the support plate (12) away from the servo drive (1) is sleeved on the surface of the screw rod (8).

4. The servo drive module with emergency stop function according to claim 3, characterized in that: A limiting groove (13) is provided on the surface of the support plate (12), and a limiting rod (14) located inside the limiting groove (13) is fixedly connected to the back side of the screw sleeve (9), and the limiting rod (14) and the limiting groove (13) are slidably connected.

5. The servo drive module with emergency stop function according to claim 3, characterized in that: A transmission motor (15) is arranged on the top of the support plate (12), the top end of the screw rod (8) passes through the support plate (12) and extends to the top of the support plate (12), and the top end of the screw rod (8) is fixedly connected to the output end of the transmission motor (15).

6. The servo drive module with emergency stop function according to claim 5, characterized in that: The top of the servo driver (1) is fixedly connected to a protective cover (16), the transmission structure (4) is located inside the protective cover (16), and the transmission motor (15) is fixedly connected to the top of the protective cover (16).

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