Torque detection device
By adopting the design of internal flow ducts and multiple connecting shafts in the torque detection device, the problem of inertial force of the external air duct affecting the detection accuracy is solved, and a higher precision torque measurement is achieved.
Patent Information
- Application Number
- CN202422200608.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The inertial force of the external air pipe in the existing torque detection device affects the detection accuracy, resulting in inaccurate torque measurement.
A torque detection device is designed, using an internal flow vent drive clamping structure to clamp or relax the product, eliminate the influence of the external air duct, and eliminate the accumulation of errors during rotation by setting two connecting shafts.
Through the design of the internal flow duct and multiple connecting shafts, the accuracy of torque detection is improved, and the influence of inertial forces of the external air duct on the detection results is avoided.
Smart Images
Figure CN222993877U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of torque detection, in particular to a torque detection device. Background Art
[0002] At present, most torque detection devices use pneumatic methods to clamp the product and obtain the torque change curve after rotating the product. The torque monitoring device in the prior art uses an external air pipe. When the torque detection device twists the product, the external air pipe will generate a certain inertia force, resulting in inaccurate measurement data of the torque monitoring device. Utility Model Content
[0003] The utility model provides a torque detection device to solve the problem in the prior art that the torque detection device is connected to an external air pipe and affects the detection accuracy.
[0004] In order to solve the above problems, the utility model provides a torque detection device, including a bracket, a first connecting shaft, a first clamping part and a second clamping part, the first connecting shaft is rotatably connected to the bracket; the first clamping part is rotatably connected to the bracket, the first connecting shaft drives the first clamping part to rotate, the first clamping part has an air flow passage inside, the first clamping part includes an air path structure, a second connecting shaft and a clamping structure connected in sequence, at least a part of the air flow passage is located in the air path structure, the gas flows in the air flow passage to drive the clamping structure to clamp or loosen the product; the second clamping part is used to clamp one end of the product away from the first clamping part.
[0005] With this solution, the rotation of the first connecting shaft drives the rotation of the first clamping part, and the air flow channel inside the first clamping part is used to transmit gas to drive the clamping structure to clamp the product. The first connecting shaft and the second connecting shaft are provided to eliminate the accumulation of errors during the rotation process and avoid inaccurate torque measurement caused by errors. The second clamping part clamps the lower half of the product, and the first clamping part rotates the upper half of the product to measure the torque during the torsion process. The air flow channel is provided inside the first clamping part, and there is no need to provide an external air pipe, which avoids the inertia force of the external air pipe affecting the torque accuracy detected by the torque detection device.
[0006] Furthermore, the circulation airway includes a first airway, a second airway and a third airway which are connected in sequence, the first airway is arranged inside the airway structure, the second airway is arranged inside the second connecting shaft, and the third airway is arranged inside the clamping structure.
[0007] It can be understood that the first airway, the second airway, and the third airway are connected in sequence to transmit gas, and the clamping structure is driven by the gas to clamp the upper half of the product. The first airway is arranged inside the gas path structure, the second airway is arranged inside the second connecting shaft, and the third airway is arranged inside the clamping structure, thereby avoiding the setting of external air pipes and preventing the inertial force generated during the rotation of the external air pipes from affecting the accuracy of torque detection.
[0008] Further, the clamping structure includes a pneumatic claw and a plurality of first clamping blocks. The first clamping blocks are connected to the pneumatic claw, and the third airway is arranged inside the pneumatic claw. The gas inside the third airway drives the plurality of first clamping blocks to clamp or release the product.
[0009] The gas is transmitted through the third airway inside the pneumatic claw, and the gas drives the plurality of first clamping blocks to clamp the product, so as to rotate the upper half of the product to obtain the torque curve during the rotation of the product.
[0010] Further, the torque detection device further includes a first bearing and two second bearings. The first bearing is arranged between the first connecting shaft and the bracket, and the two second bearings are respectively arranged at both ends of the second connecting shaft. The second bearing is arranged between the second connecting shaft and the bracket.
[0011] With such a setting, the first bearing does not need to ensure coaxiality, so setting one first bearing can ensure the rotation of the first connecting shaft while saving costs. The second bearing needs to ensure the coaxiality of the gas path structure and the clamping structure. Therefore, two second bearings are set to ensure coaxiality. Setting two shafts, namely the first connecting shaft and the second connecting shaft, can avoid the accumulation of errors during rotation and prevent the accumulated errors from affecting the accuracy of torque detection.
[0012] Further, the torque detection device further includes a driving structure. The driving structure is drivingly connected to the first connecting shaft, and the driving structure is arranged on the bracket.
[0013] The driving structure is arranged on the bracket, and the driving structure drives the first connecting shaft to rotate, so as to drive the first clamping part connected to the first connecting shaft to rotate, thereby clamping and rotating the upper half of the product and measuring the torque curve of the product rotation.
[0014] Further, the torque detection device further includes a torque sensor. The torque sensor is arranged on the first clamping part or the second clamping part, and the torque sensor is used to detect and record the torque of the first clamping part rotating the product.
[0015] During the process of the first clamping part rotating the product, the torque sensor records the torque of the rotating product to obtain the torque curve during the process of rotating the product.
[0016] Further, the torque detection device further includes a base and a feeding structure. The feeding structure is connected to the base, and the base is used to support the feeding structure. The feeding structure is drivingly connected to the bracket and drives the bracket to move up and down.
[0017] The base is used to support the feeding mechanism. The feeding mechanism drives the bracket to move up and down, thereby driving the first clamping part to move up and down, so that the first clamping part can move downward to clamp the upper half of the product and loosen the upper half of the product to move upward.
[0018] Further, the torque detection device further includes a base. The second clamping part includes a clamping seat and a plurality of second clamping blocks. The clamping seat is fixedly connected to the base, and the clamping seat drives the plurality of second clamping blocks to clamp the lower half of the product.
[0019] The base is used to fix the clamping seat. The second clamping blocks are movably connected to the clamping seat, and the lower half of the product is clamped or released by driving the second clamping blocks to move.
[0020] Further, the second clamping part further includes a buffer structure. The buffer structure is arranged between the second clamping block and the product, and the buffer structure is used to protect the product and prevent the product from slipping.
[0021] The buffer structure is arranged on the surface of the second clamping block. When the second clamping part clamps the lower half of the product, the buffer structure plays a buffering role, avoiding damage to the product caused by clamping. At the same time, it avoids the phenomenon of the product slipping during the twisting process.
[0022] Further, the torque detection device further includes a human-machine interaction panel and a base. The human-machine interaction panel is connected to the base, and the human-machine interaction panel is electrically connected to the first clamping part and the second clamping part.
[0023] The human-machine interaction panel is electrically connected to the first clamping part and the second clamping part. By operating the human-machine interaction panel, the first clamping part and the second clamping part are controlled to clamp and twist the product to measure the torque curve of the product.
[0024] The technical scheme of the utility model is applied to provide a torque detection device, including a bracket, a first connecting shaft, a first clamping part and a second clamping part, wherein the first connecting shaft is connected to one end of the first clamping part, and the first connecting shaft is rotatably connected to the bracket; the first clamping part is rotatably connected to the bracket, the first clamping part has a flow airway, and the flow airway is arranged inside the first clamping part, the first clamping part includes a gas path structure, a second connecting shaft and a clamping structure connected in sequence, the gas path structure is used to transmit gas, and the gas flows in the flow airway to drive the clamping structure to clamp or loosen the product; the second clamping part is used to clamp one end of the product away from the first clamping part. According to the scheme, the first connecting shaft rotates to drive the first clamping part to rotate, and the flow airway inside the first clamping part is used to transmit gas to drive the clamping structure to clamp the product. The first connecting shaft and the second connecting shaft are arranged to eliminate the error accumulation during the rotation process, so as to avoid the inaccurate torque measurement caused by the error. The second clamping part clamps the lower half of the product, and the first clamping part clamps the upper half of the product to rotate to measure the torque size during the torsion process. The air flow passage is arranged inside the first clamping part, and there is no need to arrange an external air pipe, thereby avoiding the influence of the inertia force of the external air pipe on the torque accuracy detected by the torque detection device. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0026] Figure 1 A schematic structural diagram of a torque detection device provided in an embodiment of the utility model is shown;
[0027] Figure 2 Shows Figure 1 A partial structural schematic diagram of a torque detection device in FIG.
[0028] Figure 3 Shows Figure 1 Schematic diagram of the structure of the flow passage of the torque detection device.
[0029] The above drawings include the following reference numerals:
[0030] 11. Bracket;
[0031] 12. Base;
[0032] 20. First connecting shaft;
[0033] 30. A first clamping portion;
[0034] 31. Gas path structure; 311. First gas path;
[0035] 32. Second connecting shaft; 321. Second air passage
[0036] 33. Clamping structure; 331. Third air passage; 332. Air gripper; 333. First clamping block
[0037] 40. Second clamping part
[0038] 41. Clamping seat
[0039] 42. Second clamping block
[0040] 50. Driving structure
[0041] 60. Torque sensor
[0042] 70. Feeding structure
[0043] 80. Human-machine interaction panel Specific embodiments
[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. The following description of at least one exemplary embodiment is actually only illustrative and in no way constitutes a limitation to the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0045] As Figures 1 to 3 shown, an embodiment of the present invention provides a torque detection device, including a bracket 11, a first connecting shaft 20, a first clamping part 30 and a second clamping part 40. The first connecting shaft 20 is rotatably connected to the bracket 11; the first clamping part 30 is rotatably connected to the bracket 11. The first connecting shaft 20 drives the first clamping part 30 to rotate. The inside of the first clamping part 30 has a flow-through air passage. The first clamping part 30 includes an air path structure 31, a second connecting shaft 32 and a clamping structure 33 connected in sequence. At least a part of the flow-through air passage is located in the air path structure 31. Gas flows in the flow-through air passage to drive the clamping structure 33 to clamp or release the product; the second clamping part 40 is used to clamp one end of the product away from the first clamping part 30.
[0046] With this solution, the first connecting shaft 20 rotates to drive the first clamping part 30 to rotate. The flow air passage inside the first clamping part 30 is used to transmit gas to drive the clamping structure 33 to clamp the product. The two shafts of the first connecting shaft 20 and the second connecting shaft 32 are provided to eliminate the cumulative error during the rotation process and avoid inaccurate torque measurement caused by the error. The second clamping part 40 clamps the lower half of the product, and the first clamping part 30 clamps the upper half of the product and rotates to measure the torque during the torsion process. The flow air passage is arranged inside the first clamping part, and there is no need to set an external air pipe, which avoids the influence of the inertia force of the external air pipe on the torque accuracy detected by the torque detection device.
[0047] As Figure 3 shown, the flow air passage includes a first air passage 311, a second air passage 321 and a third air passage 331 that are connected in sequence. The first air passage 311 is arranged inside the air path structure 31, the second air passage 321 is arranged inside the second connecting shaft 32, and the third air passage 331 is arranged inside the clamping structure 33.
[0048] It can be understood that the first air passage 311, the second air passage 321 and the third air passage 331 are connected in sequence to transmit gas, and the clamping structure 33 is driven by the gas to clamp the upper half of the product. The first air passage 311 is arranged inside the air path structure 31, the second air passage 321 is arranged inside the second connecting shaft 32, and the third air passage 331 is arranged inside the clamping structure 33, thus avoiding the setting of an external air pipe and preventing the inertia force generated by the external air pipe during the rotation process from affecting the torque detection accuracy.
[0049] In a specific embodiment of the present utility model, the air path structure 31 is a pneumatic slip ring.
[0050] In a specific embodiment of the present utility model, the pneumatic slip ring is reprocessed, two holes are opened at the bottom to penetrate the original air passage in the pneumatic slip ring, and then the original air passage interface is blocked with a plug to change the side air outlet to the bottom air outlet to obtain the first air passage 311. The second air passage 321 is opened inside the second connecting shaft 32, and the first air passage 311 is communicated with the second air passage 321. The side air path of the air claw 332 is changed to the bottom and is hermetically connected to the second connecting shaft 32. With such a setting, all the externally hung air pipes on the side can be cancelled and changed to an internal air passage, effectively avoiding the influence of the externally hung air pipe on the torque test.
[0051] As Figure 2 shown, the clamping structure 33 includes an air claw 332 and a plurality of first clamping blocks 333. The first clamping blocks 333 are connected to the air claw 332, and the third air passage 331 is arranged inside the air claw 332. The gas in the third air passage 331 drives the plurality of first clamping blocks 333 to clamp or loosen the product.
[0052] Gas is transmitted through the third air passage 331 inside the air gripper 332, and the gas drives multiple first clamping blocks 333 to clamp the product, so as to rotate the upper half of the product to obtain the torque curve during the rotation of the product.
[0053] In a specific embodiment of the present utility model, the torque detection device further includes a first bearing and two second bearings. The first bearing is arranged between the first connecting shaft 20 and the bracket 11, and the two second bearings are respectively arranged at both ends of the second connecting shaft 32. The second bearing is arranged between the second connecting shaft 32 and the bracket 11.
[0054] With such an arrangement, the first bearing does not need to ensure coaxiality. Therefore, setting one first bearing can ensure the rotation of the first connecting shaft 20 while saving costs. The second bearing needs to ensure the coaxiality of the air path structure 31 and the clamping structure 33. Therefore, two second bearings are set to ensure coaxiality. Setting two shafts, namely the first connecting shaft 20 and the second connecting shaft 32, can avoid the accumulation of errors during the rotation process and prevent the accumulated errors from affecting the accuracy of torque detection.
[0055] As Figure 1 shown, the torque detection device further includes a driving structure 50. The driving structure 50 is drivingly connected to the first connecting shaft 20, and the driving structure 50 is arranged on the bracket 11.
[0056] The driving structure 50 is arranged on the bracket 11. The driving structure 50 drives the first connecting shaft 20 to rotate, so as to drive the first clamping part 30 connected to the first connecting shaft 20 to rotate, thereby clamping and rotating the upper half of the product, and measuring the torque curve of the product rotation.
[0057] In a specific embodiment of the present utility model, the driving mode of the driving structure 50 can be pneumatic or electric.
[0058] As Figure 1 shown, the torque detection device further includes a torque sensor 60. The torque sensor 60 is arranged on the first clamping part 30 or the second clamping part 40. The torque sensor 60 is used to detect and record the torque of the first clamping part 30 rotating the product.
[0059] During the process of the first clamping part 30 rotating the product, the torque sensor 60 records the torque of the rotating product, and obtains the torque curve during the process of rotating the product.
[0060] As Figure 1 shown, the torque detection device further includes a base 12 and a feeding structure 70. The feeding structure 70 is connected to the base 12. The base 12 is used to support the feeding structure 70. The feeding structure 70 is drivingly connected to the bracket 11, and the feeding structure 70 drives the bracket 11 to move up and down.
[0061] The base 12 is used to support the feeding structure 70. The feeding structure 70 drives the bracket 11 to move up and down, thereby driving the first clamping part 30 to move up and down, so that the first clamping part 30 can move downward to clamp the upper half of the product and move upward to release the upper half of the product.
[0062] In a specific embodiment of the present utility model, the feeding structure 70 can be driven by pneumatic, electric and other means.
[0063] As Figure 1 shown, the torque detection device further includes a base 12. The second clamping part 40 includes a clamping seat 41 and a plurality of second clamping blocks 42. The clamping seat 41 is fixedly connected to the base 12, and the clamping seat 41 drives the plurality of second clamping blocks 42 to clamp the lower half of the product.
[0064] The base 12 is used to fix the clamping seat 41. The second clamping blocks 42 are movably connected to the clamping seat 41, and the lower half of the product is clamped or released by driving the second clamping blocks 42 to move.
[0065] In a specific embodiment of the present utility model, the clamping seat 41 can drive the second clamping blocks 42 to clamp the lower half of the product in a pneumatic or electric manner.
[0066] In a specific embodiment of the present utility model, the second clamping part 40 further includes a buffer structure. The buffer structure is arranged between the second clamping blocks 42 and the product, and the buffer structure is used to protect the product and prevent the product from slipping.
[0067] The buffer structure is arranged on the surface of the second clamping blocks 42. When the second clamping part 40 clamps the lower half of the product, the buffer structure plays a buffering role to avoid damage to the product caused by clamping. At the same time, it avoids the phenomenon of the product slipping during the twisting process.
[0068] As Figure 1 shown, the torque detection device further includes a human-machine interaction panel 80 and a base 12. The human-machine interaction panel 80 is connected to the base 12, and the human-machine interaction panel 80 is electrically connected to the first clamping part 30 and the second clamping part 40.
[0069] The human-machine interaction panel 80 is electrically connected to the first clamping part 30 and the second clamping part 40. By operating the human-machine interaction panel 80, the first clamping part 30 and the second clamping part 40 are controlled to clamp and twist the product to measure the torque curve of the product.
[0070] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
[0071] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0072] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0073] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus cannot be construed as limiting the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0074] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made.
[0075] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present utility model.
Claims
1. A torque detection device, characterized in that: include: Bracket (11); A first connecting shaft (20), the first connecting shaft (20) being rotatably connected to the bracket (11); a first clamping part (30), the first clamping part (30) being rotatably connected to the bracket (11), the first connecting shaft (20) driving the first clamping part (30) to rotate, the first clamping part (30) having an air flow passage inside, the first clamping part (30) comprising an air path structure (31), a second connecting shaft (32) and a clamping structure (33) connected in sequence, at least a part of the air flow passage being located in the air path structure (31), and gas flowing in the air flow passage drives the clamping structure (33) to clamp or release the product; A second clamping portion (40), wherein the second clamping portion (40) is used to clamp an end of the product away from the first clamping portion (30).
2. The torque detection device according to claim 1, characterized in that: The circulation air channel comprises a first air channel (311), a second air channel (321) and a third air channel (331) which are connected in sequence, wherein the first air channel (311) is arranged inside the air path structure (31), the second air channel (321) is arranged inside the second connecting shaft (32), and the third air channel (331) is arranged inside the clamping structure (33).
3. The torque detection device according to claim 2, characterized in that: The clamping structure (33) includes an air gripper (332) and a plurality of first clamping blocks (333), wherein the first clamping blocks (333) are connected to the air gripper (332), and the third air channel (331) is disposed in the air gripper (332). The gas in the third air channel (331) drives the plurality of first clamping blocks (333) to clamp or release the product.
4. The torque detection device according to claim 1, characterized in that: The torque detection device further comprises a first bearing and two second bearings, wherein the first bearing is arranged between the first connecting shaft (20) and the bracket (11), the two second bearings are respectively arranged at two ends of the second connecting shaft (32), and the second bearing is arranged between the second connecting shaft (32) and the bracket (11).
5. The torque detection device according to claim 1, characterized in that: The torque detection device further comprises a driving structure (50), the driving structure (50) being drivingly connected to the first connecting shaft (20), and the driving structure (50) being arranged on the bracket (11).
6. The torque detection device according to claim 1, characterized in that: The torque detection device further comprises a torque sensor (60), wherein the torque sensor (60) is arranged on the first clamping part (30) or the second clamping part (40), and the torque sensor (60) is used to detect and record the torque of the first clamping part (30) rotating the product.
7. The torque detection device according to claim 1, characterized in that: The torque detection device further comprises a base (12) and a feeding structure (70), wherein the feeding structure (70) is connected to the base (12), the base (12) is used to support the feeding structure (70), the feeding structure (70) is drivingly connected to the bracket (11), and the feeding structure (70) drives the bracket (11) to move up and down.
8. The torque detection device according to claim 1, characterized in that: The torque detection device also includes a base (12); the second clamping portion (40) includes a clamping seat (41) and a plurality of second clamping blocks (42); the clamping seat (41) is fixedly connected to the base (12); and the clamping seat (41) drives the plurality of second clamping blocks (42) to clamp the lower half of the product.
9. The torque detection device according to claim 8, characterized in that: The second clamping portion (40) further comprises a buffer structure, which is arranged between the second clamping block (42) and the product, and is used to protect the product and prevent the product from slipping.
10. The torque detection device according to claim 1, characterized in that: The torque detection device further comprises a human-machine interaction panel (80) and a base (12); the human-machine interaction panel (80) is connected to the base (12); and the human-machine interaction panel (80) is electrically connected to the first clamping portion (30) and the second clamping portion (40).