CN215659796U - Clamping equipment - Google Patents
Clamping equipment Download PDFInfo
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- CN215659796U CN215659796U CN202120416004.3U CN202120416004U CN215659796U CN 215659796 U CN215659796 U CN 215659796U CN 202120416004 U CN202120416004 U CN 202120416004U CN 215659796 U CN215659796 U CN 215659796U
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Abstract
The utility model discloses clamping equipment, and relates to the technical field of workpiece processing equipment, so that the working efficiency is improved, the labor intensity is reduced, and the clamping force is prevented from being too large or too small. The clamping equipment comprises a clamping tool, a driving mechanism, a torque sensor and a first controller electrically connected with the torque sensor and a driving motor. The driving mechanism is used for adjusting the clamping width of the clamping tool. The torque sensor is arranged on the driving mechanism. The torque sensor is used for detecting the output torque of the driving mechanism. The clamping device provided by the utility model is used for clamping a workpiece.
Description
Technical Field
The utility model relates to the technical field of workpiece processing equipment, in particular to clamping equipment.
Background
In the machining process of the material increase manufacturing workpiece, when the clamping tool is used for clamping the workpiece, the clamping tool is usually shaken manually by manpower, so that the workpiece is clamped or loosened. And the mode adopts manual control, so that the working efficiency is low and the labor intensity is high. More importantly, as the material increase manufacturing workpiece expands with heat and contracts with cold, the clamping force is easily overlarge due to manual control of the clamping tool, and the workpiece deforms or cracks; or the clamping force is too small, and the workpiece falls off.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide clamping equipment, which is used for improving the working efficiency, reducing the labor intensity of workers and avoiding overlarge or undersize clamping force.
The utility model provides a clamping device for clamping a workpiece. The clamping equipment comprises a clamping tool, a driving mechanism, a torque sensor and a first controller electrically connected with the torque sensor and the driving mechanism. The driving mechanism is used for adjusting the clamping width of the clamping tool. The torque sensor is arranged on the driving mechanism. The torque sensor is used for detecting the output torque of the driving mechanism.
Under the condition of adopting above-mentioned technical scheme, the centre gripping equipment includes centre gripping frock, actuating mechanism, moment of torsion inductor and the first controller of being connected with moment of torsion inductor and driving motor electricity. The driving mechanism is used for adjusting the clamping width of the clamping tool. When the workpiece is clamped, the driving mechanism is controlled by the first controller to adjust the clamping width of the clamping tool, so that manual shaking of the clamping tool is avoided, the working efficiency is improved, and the manual labor intensity is reduced.
Furthermore, a torque sensor is provided on the drive mechanism. The torque sensor is used for detecting the output torque of the driving mechanism. The torque sensor can detect the output torque of the driving mechanism, and the clamping force of the clamping tool can be obtained according to the output torque. Based on the method, when the workpiece is clamped, the required preset clamping force can be converted into the preset output torque. In the process that the first controller controls the driving mechanism to adjust the clamping width of the clamping tool, when the torque sensor detects that the output torque of the driving mechanism reaches a preset value, the torque sensor feeds a signal indicating that the output torque reaches the preset value back to the first controller, and the first controller controls the driving mechanism to stop, so that the phenomenon that a workpiece is deformed or fissured due to overlarge clamping force is avoided; alternatively, the clamping force is too small, resulting in the workpiece falling. In addition, the torque sensor detects the output torque of the driving mechanism to obtain the clamping force of the clamping tool, and compared with a mode that the torque sensor is installed on the clamping arm to measure the clamping force, the torque sensor does not need to improve the structure of the clamping tool, so that the cost is saved, and the torque sensor does not need to be in contact with a workpiece, so that the influence on the service life of the clamping tool under the action of the clamping force is avoided after the torque sensor is in contact with the workpiece.
In a possible implementation manner, the clamping device further includes a second controller that issues a control instruction to the first controller. The second controller is in communication with the first controller.
According to the technical scheme, the clamping equipment further comprises a second controller which sends a control instruction to the first controller, and the second controller can be arranged at the clamping tool, so that the clamping tool can be accurately controlled according to the clamping state of the clamping tool.
In one possible implementation, the second controller is electrically connected to the first controller.
In a possible implementation manner, the second controller is wirelessly connected with the first controller.
In a possible implementation manner, the second controller is a push-button controller.
In one possible implementation, the first controller has a first power interface, a first signal interface, and a second signal interface. The driving mechanism is provided with a second power interface and a third signal interface, the second power interface is electrically connected with the first power interface, and the third signal interface is electrically connected with the first signal interface. The second controller is provided with a fourth signal interface which is electrically connected with the second signal interface.
In a possible implementation manner, the clamping device further comprises a speed reducing device, and the driving mechanism is in power connection with the clamping tool through the speed reducing device.
Under the condition of adopting above-mentioned technical scheme, actuating mechanism passes through decelerator and centre gripping frock power connection, and decelerator can adjust actuating mechanism's rotational speed for actuating mechanism's more accurate adjustment centre gripping width of centre gripping frock.
In a possible implementation manner, the clamping device further comprises a coupler, and the driving mechanism is in power connection with the clamping tool through the coupler.
Under the condition of adopting above-mentioned technical scheme, actuating mechanism passes through the shaft coupling and is connected with centre gripping frock power for actuating mechanism is connected more stably with the centre gripping frock.
In a possible implementation manner, the clamping tool comprises a mounting frame, a screw and nut mechanism and two clamping arms. The feed screw nut mechanism is arranged on the mounting frame, a feed screw of the feed screw nut mechanism is provided with two thread sections, and each clamping arm is in threaded connection with the corresponding thread section.
In a possible implementation manner, the two thread sections are of a split structure or an integral structure.
In one possible implementation, the feed screw nut mechanism comprises two nuts threadedly connected to the respective threaded sections, and each clamp arm is threadedly connected to the threaded sections through the respective nuts. The thread directions of the two thread sections are opposite, and the thread directions of the two nuts are the same.
Under the condition of adopting above-mentioned technical scheme, the screw thread direction of two screw thread sections is opposite, and the screw thread direction of two nuts is the same, and actuating mechanism drives the lead screw and rotates, and the lead screw cooperates with two nuts respectively, drives two centre gripping arms and removes to opposite direction to realize the purpose of the centre gripping width of adjustment centre gripping frock.
In a possible implementation, the thread directions of the two thread segments are the same, and the thread directions of the two nuts are opposite.
Under the condition of adopting above-mentioned technical scheme, the screw thread direction of two screw thread sections is the same, and the screw thread direction of two nuts is opposite, and actuating mechanism drives the lead screw and rotates, and the lead screw cooperates with two nuts respectively, drives two centre gripping arms and removes to opposite direction to realize the purpose of the centre gripping width of adjustment centre gripping frock.
In a possible implementation manner, the clamping tool further comprises a plurality of height adjusting devices, and the height adjusting devices are uniformly distributed on one side, far away from the two clamping arms, of the mounting frame.
Under the condition of adopting above-mentioned technical scheme, the centre gripping frock still includes a plurality of height adjusting device, and a plurality of height adjusting device can be as required, the height of adjustment mounting bracket to be applicable to the processing height requirement not used. A plurality of height control device equipartitions are kept away from one side of two centre gripping arms at the mounting bracket, and a plurality of height control device can also adjust mounting bracket height everywhere in the height of adjusting the mounting bracket for the installation face of mounting bracket is the angle of level or needs, thereby is applicable to different installation environment.
In a possible implementation manner, the driving mechanism is a motor, the torque sensor is an encoder, and the encoder is connected with the motor.
Under the condition of adopting above-mentioned technical scheme, have the position of installation encoder on the motor, when the moment of torsion inductor was the encoder, need not change the structure of motor, with low costs, stable in structure.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view of a clamping apparatus according to an embodiment of the present invention.
Reference numerals:
100-clamping tool, 110-mounting frame, 120-clamping arm, 130-screw rod, 140-height adjusting device, 200-driving mechanism, 210-second power interface, 220-third signal interface, 300-first controller, 310-first power interface, 320-first signal interface, 330-second signal interface, 400-second controller, 410-fourth signal interface, 500-speed reducing device and 600-coupler.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the machining process of the material increase manufacturing workpiece, when the clamping tool is used for clamping the workpiece, the clamping tool is usually shaken manually by manpower, so that the workpiece is clamped or loosened. And the mode adopts manual control, so that the working efficiency is low and the labor intensity is high. More importantly, as the material increase manufacturing workpiece expands with heat and contracts with cold, the clamping force is easily overlarge due to manual control of the clamping tool, and the workpiece deforms or cracks; or the clamping force is too small, and the workpiece falls off.
An embodiment of the present invention provides a clamping device, and fig. 1 illustrates a schematic diagram of the clamping device in the embodiment of the present invention. As shown in fig. 1, the clamping apparatus includes a clamping tool 100, a driving mechanism 200, a torque sensor, and a first controller 300 electrically connected to the torque sensor and the driving mechanism 200. The driving mechanism 200 is used to adjust the clamping width of the clamping tool 100. The torque sensor is provided on the driving mechanism 200. The torque sensor is used to detect the output torque of the driving mechanism 200.
In one example, the driving mechanism may be a motor, the torque sensor is an encoder, and the encoder is connected to the motor. The output shaft of motor and centre gripping frock power are connected, and the moment of torsion of motor output shaft can be detected to the encoder. The motor is provided with the encoder, and when the torque sensor is the encoder, the structure of the motor does not need to be changed, so that the cost is low, and the structure is stable.
As shown in fig. 1, the above-described chucking apparatus may further include a second controller 400 that issues a control instruction to the first controller 300. The second controller 400 communicates with the first controller 300. For example: the second controller 400 may issue a control command to the first controller 300 to clamp or release the workpiece, so that the first controller 300 controls the clamping tool 100 to clamp or release the workpiece. The second controller 400 may be a push-button controller to facilitate and accurately operate the second controller 400.
As shown in fig. 1, the clamping apparatus further includes a second controller 400 that issues a control command to the first controller 300, and the second controller 400 may be provided at the clamping tool 100, so that the clamping tool 100 may be precisely controlled according to a clamping state of the clamping tool 100.
In one example, as shown in fig. 1, the second controller 400 and the first controller 300 may be electrically connected. For example, the second controller 400 and the first controller 300 may be electrically connected based on a data line or a power line carrier. Of course,
in another example, as illustrated in fig. 1, the second controller 400 and the first controller 300 may be wirelessly connected. For example, the second controller 400 and the first controller 300 may be wirelessly connected based on wifi, zigbee, or other networking technologies.
As shown in fig. 1, the first controller 300 may have a first power interface 310, a first signal interface 320, and a second signal interface 330. The drive mechanism 200 has a second power interface 210 and a third signal interface 220. The second power interface 210 is electrically connected to the first power interface 310. The second power interface 210 and the first power interface 310 may be electrically connected by a power cable, but is not limited thereto. The third signal interface 220 is electrically connected to the first signal interface 320, and the third signal interface 220 and the first signal interface 320 may be electrically connected by a signal cable, but is not limited thereto. The second controller 400 has a fourth signal interface 410, the fourth signal interface 410 is electrically connected to the second signal interface 330, and the fourth signal interface 410 and the second signal interface 330 can be electrically connected by a signal cable, but is not limited thereto. The torque sensor may be electrically connected to the first controller 300 through a signal cable, but is not limited thereto.
As shown in fig. 1, the clamping tool 100 may include a mounting frame 110, a lead screw-nut mechanism, and two clamping arms 120. The distance between the two clamping arms 120 is the clamping width of the clamping tool 100. The screw nut mechanism is disposed on the mounting frame 110, the screw 130 of the screw nut mechanism has two threaded sections, and each of the clamping arms 120 is threaded in a corresponding threaded section.
As shown in fig. 1, the two thread segments are of a split structure or an integral structure. When the two thread sections are of a split structure, the two thread sections can be fixed together in a welding mode, a bolt assembly detachable connection mode and the like, and the method is not limited herein.
As shown in fig. 1, the feed screw-nut mechanism may comprise two nuts threadedly coupled to respective threaded sections. Each gripping arm 120 is threadedly connected to the threaded section by a respective nut. Each gripping arm 120 may be integrally formed with a respective nut; alternatively, each clamping arm 120 may be a separate structure from the corresponding nut, and fixed together by welding, detachably connecting with a bolt assembly, and the like, which is not limited herein.
In practical application, as shown in fig. 1, the lead screw 130 of the lead screw-nut mechanism is in power connection with the driving mechanism 200, and the driving mechanism 200 drives the lead screw 130 to rotate. The mounting frame 110 is provided with sliding grooves distributed along the extending direction of the screw 130, and the bottom of each clamping arm 120 is clamped into the sliding groove to prevent the clamping arms 120 from rotating in the moving process. Each gripping arm 120 is threadedly connected to the threaded section by a respective nut. During the rotation of the screw 130, the screw 130 is fixed, and each clamping arm 120 converts the torque of the screw 130 into a driving force for moving each clamping arm 120, i.e., a clamping force of each clamping arm 120, during the process of screwing with the threaded section, so that each clamping arm 120 moves along the extending direction of the screw 130, thereby clamping the workpiece.
As shown in fig. 1, the thread direction of the two thread segments may be opposite, and the thread direction of the two nuts is the same. In the rotating process of the screw rod 130, the screw rod 130 drives the two screw thread sections to rotate, and the two screw thread sections are respectively matched with the two nuts, so that the two nuts move in opposite directions, and the two clamping arms 120 are driven by the two nuts to move in opposite directions, so that the workpiece is clamped or loosened.
As shown in fig. 1, the thread direction of the two thread segments may be the same, and the thread direction of the two nuts may be opposite. In the rotating process of the screw rod 130, the screw rod 130 drives the two screw thread sections to rotate, and the two screw thread sections are respectively matched with the two nuts, so that the two nuts move in opposite directions, and the two clamping arms 120 are driven by the two nuts to move in opposite directions, so that the workpiece is clamped or loosened.
As shown in fig. 1, the above-described clamping apparatus may further include a reduction gear 500. The driving mechanism 200 is power-connected to the clamping tool 100 through the speed reducer 500. The reduction device 500 may be a reducer, but is not limited thereto. When the clamping tool 100 comprises the screw 130, the speed reducer 500 is in power connection with the screw 130. The driving mechanism 200 is in power connection with the clamping tool 100 through the speed reducer 500, and the speed reducer 500 can adjust the rotating speed of the driving mechanism 200, so that the driving mechanism 200 can adjust the clamping width of the clamping tool 100 more accurately.
As shown in fig. 1, the clamping device may further include a coupler 600. The driving mechanism 200 is in power connection with the clamping tool 100 through a coupler 600. The coupling 600 may be a bayonet, but is not limited thereto. When the clamping tool 100 comprises the screw rod 130 and the driving mechanism 200 comprises the speed reducer 500, two ends of the clamping pin are respectively in power connection with the screw rod 130 and the speed reducer 500. The driving mechanism 200 is in power connection with the clamping tool 100 through the coupler 600, so that the driving mechanism 200 is more stably connected with the clamping tool 100.
As shown in fig. 1, the clamping tool 100 may further include a plurality of height adjusting devices 140. A plurality of height adjustment devices 140 are uniformly distributed on a side of the mounting frame 110 away from the two clamp arms 120. The height adjusting device 140 may be a cylinder or a telescopic motor, but is not limited thereto.
In one example, as shown in fig. 1, the clamping tool 100 may include four height adjusting devices 140, and the four height adjusting devices 140 are uniformly distributed below the mounting frame 110. The four height adjusting means 140 may increase or decrease the height at the same time to increase or decrease the height of the mounting frame 110. When the installation place is uneven, the heights of the four height adjusting devices 140 can be made different, so that the installation frame 110 is adjusted to be horizontal to facilitate the processing of the workpiece.
As shown in fig. 1, the clamping tool 100 further includes a plurality of height adjusting devices 140, and the height of the mounting frame 110 can be adjusted by the height adjusting devices 140 as required, so as to meet different requirements of machining height. The plurality of height adjusting devices 140 are uniformly distributed on one side of the mounting frame 110 far away from the two clamping arms 120, and the heights of the mounting frame 110 can be adjusted by the plurality of height adjusting devices 140 while the height of the mounting frame 110 is adjusted, so that the mounting surface of the mounting frame 110 is horizontal or required, and the mounting frame is suitable for different mounting environments.
In practical application, as shown in fig. 1, a plurality of tests are performed to obtain an output torque of the driving mechanism 200 corresponding to the workpiece to be clamped, and the output torque is set as a preset output torque. When the workpiece is clamped, the workpiece is placed between the two clamp arms 120, and a clamping command is sent to the first controller 300 via the second controller 400. The first controller 300 controls the driving mechanism 200 to drive the screw 130 to rotate, so that the two clamping arms 120 approach to the workpiece and clamp the workpiece. When the torque sensor detects that the output torque of the driving mechanism 200 reaches the preset output torque, the torque sensor feeds back information of reaching the preset output torque to the first controller 300, and the first controller 300 controls the driving mechanism 200 to stop rotating. At this time, the two clamp arms 120 clamp the workpiece.
As shown in fig. 1, when the workpiece is processed and needs to be taken out, a release command is transmitted to the first controller 300 through the second controller 400. The first controller 300 controls the driving mechanism 200 to drive the screw 130 to rotate reversely, so that the two holding arms 120 are far away from the workpiece, and the workpiece can be taken out.
It is noted that the preset output torque is not changed when clamping the same batch of workpieces. When the workpieces are replaced by another batch of workpieces, the workpieces need to be tested for a plurality of times, and the output torque of the driving mechanism corresponding to the replaced workpieces is obtained.
As shown in fig. 1, the clamping apparatus includes a clamping tool 100, a driving mechanism 200, a torque sensor, and a first controller 300 electrically connected to the torque sensor and a driving motor. The driving mechanism 200 is used to adjust the clamping width of the clamping tool 100. When clamping a workpiece, the driving mechanism 200 can be controlled by the first controller 300 to adjust the clamping width of the clamping tool 100, so that manual shaking of the clamping tool 100 is avoided, the working efficiency is improved, and the manual labor intensity is reduced.
Furthermore, as shown in fig. 1, a torque sensor is provided on the drive mechanism 200. The torque sensor is used to detect the output torque of the driving mechanism 200. The torque sensor may detect an output torque of the driving mechanism 200, and may obtain a clamping force of the clamping tool 100 according to the output torque. Based on the method, when the workpiece is clamped, the required preset clamping force can be converted into the preset output torque. In the process that the first controller 300 controls the driving mechanism 200 to adjust the clamping width of the clamping tool 100, when the torque sensor detects that the output torque of the driving mechanism 200 reaches a preset value, the torque sensor feeds a signal indicating that the output torque reaches the preset value back to the first controller 300, and the first controller 300 controls the driving mechanism 200 to stop, so that the phenomenon that a workpiece is deformed or cracked due to overlarge clamping force is avoided; alternatively, the clamping force is too small, resulting in the workpiece falling. In addition, the torque sensor detects the output torque of the driving mechanism 200 to obtain the clamping force of the clamping tool 100, and compared with a mode of using a torque sensor to install on the clamping arm 120 to measure the clamping force, the torque sensor does not need to improve the structure of the clamping tool 100, so that the cost is saved, and the torque sensor does not need to be in contact with a workpiece, so that the influence on the service life of the clamping tool under the action of the clamping force after the torque sensor is in contact with the workpiece is avoided.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A clamping apparatus for clamping a workpiece, the clamping apparatus comprising:
clamping a tool;
the driving mechanism is used for adjusting the clamping width of the clamping tool;
the torque sensor is arranged on the driving mechanism and used for detecting the output torque of the driving mechanism;
and a first controller electrically connected to the torque sensor and the drive mechanism.
2. The clamp apparatus of claim 1, further comprising a second controller issuing control instructions to the first controller, the second controller being in communication with the first controller.
3. The clamp apparatus of claim 2, wherein the second controller is electrically connected with the first controller; or the like, or, alternatively,
the second controller is wirelessly connected with the first controller.
4. The clamp apparatus of claim 2, wherein the second controller is a push-button controller.
5. The clamp apparatus of claim 2, wherein the first controller has a first power interface, a first signal interface, and a second signal interface;
the driving mechanism is provided with a second power interface and a third signal interface, the second power interface is electrically connected with the first power interface, and the third signal interface is electrically connected with the first signal interface;
the second controller is provided with a fourth signal interface which is electrically connected with the second signal interface.
6. The clamping device of claim 1, further comprising a speed reduction device, wherein the drive mechanism is in power connection with the clamping tooling through the speed reduction device; and/or the presence of a gas in the gas,
the clamping equipment further comprises a coupler, and the driving mechanism is in power connection with the clamping tool through the coupler.
7. The clamping device according to any one of claims 1 to 6, wherein the clamping tool comprises a mounting frame, a screw and nut mechanism and two clamping arms, the screw and nut mechanism is arranged on the mounting frame, a screw of the screw and nut mechanism is provided with two threaded sections, and each clamping arm is in threaded connection with the corresponding threaded section.
8. The clamping apparatus of claim 7 wherein the two threaded segments are of a split or integral construction; and/or the presence of a gas in the gas,
the feed screw nut mechanism comprises two nuts in threaded connection with the corresponding threaded sections, and each clamping arm is in threaded connection with the threaded sections through the corresponding nut;
the thread directions of the two thread sections are opposite, and the thread directions of the two nuts are the same; or the like, or, alternatively,
the thread directions of the two thread sections are the same, and the thread directions of the two nuts are opposite.
9. The clamping device of claim 7, wherein the clamping tool further comprises a plurality of height adjusting devices uniformly distributed on one side of the mounting frame away from the two clamping arms.
10. The clamping apparatus of any one of claims 1 to 6 wherein the drive mechanism is a motor and the torque sensor is an encoder, the encoder being connected to the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120416004.3U CN215659796U (en) | 2021-02-25 | 2021-02-25 | Clamping equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120416004.3U CN215659796U (en) | 2021-02-25 | 2021-02-25 | Clamping equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215659796U true CN215659796U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120416004.3U Active CN215659796U (en) | 2021-02-25 | 2021-02-25 | Clamping equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215659796U (en) |
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2021
- 2021-02-25 CN CN202120416004.3U patent/CN215659796U/en active Active
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