CN219725197U - Tightening equipment for workpieces of different types - Google Patents

Abstract

The utility model discloses a tightening device for workpieces of different types, which can tighten a nut on a workpiece, and comprises a device main body and a tightening mechanism, wherein the tightening mechanism comprises a tightening member and a belt rotating assembly, a mounting hole is formed in the center of the tightening member, the tightening member comprises a rotating piece, a tightening piece and at least one mounting assembly, the tightening piece is detachably connected to the rotating piece through the mounting assembly, and the rotating piece is assembled and integrally rotated through the tightening piece with different sizes from the mounting hole so as to tighten the nut on the workpieces of different types, and the tightening member can be driven by the belt rotating assembly to rotate for a preset number of turns. The utility model can automatically screw the nut on the workpiece, the screw degree of the nut and the workpiece is controlled, the assembly quality is improved, and the utility model can screw the nut on workpieces with different models so as to meet the production requirement.

Description

Tightening equipment for workpieces of different types

Technical Field

The utility model relates to the technical field of workpiece assembly, in particular to tightening equipment for workpieces of different types.

Background

During manufacturing, it is often necessary to tighten a nut to a workpiece to assemble two portions of the workpiece together. Currently, when performing a tightening operation, a worker clamps the nut with a wrench, and tightens the nut to a workpiece by rotating the nut. In the process, the manually applied force is not easy to control, if the force is excessive, the threads on the surface of the workpiece for being assembled with the nut can be damaged, and if the force is too small, the nut cannot be sufficiently screwed on the workpiece, so that the subsequent use of the workpiece can be influenced. Therefore, by adopting a manual assembly mode, the assembly quality of the workpiece is difficult to ensure, time and labor are wasted, and the working efficiency is low.

In addition, when the existing tightening equipment is used, the nut is tightened through the motor-driven tightening head, and the specification of the tightening head is fixed, so that the existing tightening equipment is usually only used for tightening workpieces of one type, and therefore the existing tightening equipment is small in practicality and cannot meet the requirements of assembling workpieces of different types.

Disclosure of Invention

The utility model has the advantages that the utility model provides the tightening equipment for workpieces of different types, the nut can be automatically tightened on the workpiece, compared with the existing manual tightening mode, the tightening degree of the nut and the workpiece is controlled, the conditions that the workpiece is damaged due to excessive tightening and the workpiece is affected due to insufficient tightening are effectively avoided, the assembly quality is improved, the time and the labor are saved, and the assembly efficiency is higher.

One advantage of the present utility model is to provide a tightening apparatus for different types of workpieces that is capable of tightening nuts on different types of workpieces to meet production requirements.

To achieve at least one of the above advantages, the present utility model provides a tightening apparatus for workpieces of different types capable of tightening a nut to a workpiece, the tightening apparatus for workpieces of different types comprising:

an apparatus main body;

a twist mechanism, twist mechanism includes:

a screwing member having a mounting hole formed at a center thereof, the mounting hole having a shape and a size adapted to the nut, the screwing member being capable of screwing the nut to the workpiece to be fixed by driving the nut to rotate, the screwing member including a rotator rotatably mounted to the apparatus body, a screwing member detachably connected to the rotator through the mounting assembly, and at least one mounting assembly integrally rotated by the screwing member having a rotation center overlapping with a rotation center of the rotator when the screwing member is assembled to the rotator, the rotator being assembled to the workpiece of a different model by the screwing member having a different size from the mounting hole;

and the rotating piece is connected with the belt rotating assembly, and the screwing component can be driven by the belt rotating assembly to rotate for a preset number of turns.

According to an embodiment of the utility model, the workpiece comprises a first part and a second part, the nut is movably mounted on either one of the first part and the second part and preloaded on the other, and the workpiece is characterized in that a mounting hole is formed in the center of the rotating member, the rotating member is provided with a channel, the channel extends from the edge of the rotating member to the mounting hole and is communicated with the mounting hole, when the rotating member is assembled on the rotating member, the channel is communicated with the mounting hole, the sizes of the mounting hole and the channel are larger than those of the workpiece, the size of the nut is provided on the workpiece, and when the sizes of one end portions, which are far away from each other, of the first part and the second part are larger than those of the mounting hole, the workpiece can pass through the channel in a mode that part of the first part and part of the second part are separated on two sides of the rotating member, and the workpiece can be driven to finally be snapped on the mounting hole.

According to an embodiment of the present utility model, the screwing member supports the workpiece when the nut assembled to the workpiece is engaged with the mounting hole, and the screwing apparatus for workpieces of different types further includes at least one clamping mechanism mounted to the apparatus body at a position adjacent to the screwing member, the clamping mechanism being for fixing the workpiece supported by the screwing member.

According to an embodiment of the present utility model, the clamping mechanism includes a clamping member, the clamping member includes two clamping assemblies and at least one clamping control assembly, the two clamping assemblies are located on the circumferential side of the workpiece carried by the screwing member, the clamping assemblies are mounted on the clamping control assembly, and the clamping control assembly is configured to drive the two clamping assemblies to approach or separate from each other to clamp the workpiece.

According to an embodiment of the present utility model, the clamping mechanism further includes a first lifting assembly, the first lifting assembly includes a first lifting member and at least one first driving member, the clamping member is disposed on the first lifting member, the first lifting member is mounted on the first driving member, and the first driving member can drive the first lifting member to move closer to or farther from the screwing member, so that the clamping member can be driven by the first lifting member to integrally approach to or farther from the workpiece carried by the screwing member.

According to an embodiment of the present utility model, the tightening apparatus for workpieces of different types further includes a fixing mechanism located at a bottom of the screwing member, the first portion being on a same side as the clamping mechanism, the clamping member being for clamping the first portion, the second portion being on a same side as the fixing mechanism, the fixing mechanism being for fixing the second portion when the workpiece is supported by the screwing member in a manner that the nut is inserted into the mounting hole and the first portion and the second portion are spaced apart by the screwing member.

According to an embodiment of the present utility model, the fixing mechanism includes a fixing member including a fixing piece located in an extending direction of the mounting hole, the fixing piece having a fixing space with a shape and a size adapted to the second portion, the fixing space corresponding to the second portion when the workpiece is carried by the turning member in a form of the nut being fastened to the mounting hole, the fixing piece being for fixing the second portion, the fixing member further including a mount to which the fixing piece is mounted.

According to an embodiment of the present utility model, the fixing mechanism further includes a second lifting assembly, the second lifting assembly includes a second lifting member and at least one second driving member, the fixing member is disposed on the second lifting member, the second lifting member is mounted on the second driving member, and the second driving member can drive the second lifting member to move closer to or farther from the screwing member, so that the fixing member can be driven by the second lifting member to integrally approach to or farther from the workpiece carried by the screwing member.

According to an embodiment of the present utility model, the tightening device for different types of workpieces further includes a controller, the belt rotating assembly and the clamp controlling assembly are controllably connected to the controller, the controller is configured to control the belt rotating assembly and the clamp controlling assembly to operate, the tightening device for different types of workpieces further includes a torque detecting mechanism, the torque detecting mechanism includes a torque sensor, the torque sensor is communicatively connected to the controller, the torque sensor is in transmission connection with the fixing member, when the nut is assembled to the workpiece and the nut is driven by the rotating member and drives the workpiece to rotate together, the torque sensor is configured to detect a torque transmitted from the workpiece to the fixing member, the torque sensor is configured to control an operation condition of the belt rotating assembly and the clamp controlling assembly according to feedback of the torque sensor, the torque detecting mechanism further includes a transmission assembly and an elastic member, the transmission assembly is mounted between the transmission assembly and the elastic member, and the elastic member is configured to deform when the nut is mounted to the workpiece and the elastic member is driven by the elastic member and the elastic member.

According to an embodiment of the present utility model, the tightening device for workpieces of different types further includes a re-rotation assembly, the re-rotation assembly is connected to the transmission assembly, the re-rotation assembly is controllably connected to the controller, and the re-rotation assembly is configured to drive the fixing member to rotate and reset through the transmission assembly.

Drawings

Fig. 1 shows a schematic structural view of a tightening apparatus for workpieces of different types according to the present utility model.

Fig. 2 shows a schematic partial structure of a turning mechanism of the tightening apparatus for workpieces of different types according to the present utility model.

Fig. 3 shows an exploded view of the structure of the turning member of the tightening device for workpieces of different models according to the present utility model.

Fig. 4 shows a schematic structural view of a clamping mechanism of the tightening device for workpieces of different types according to the present utility model.

Fig. 5 shows a schematic partial structure of a clamping mechanism of the tightening device for workpieces of different types according to the present utility model.

Fig. 6 shows an exploded view of a partial structure of a clamping mechanism of a tightening device for workpieces of different types according to the present utility model.

Fig. 7 shows a schematic partial structure of a tightening apparatus for workpieces of different types according to the present utility model.

Fig. 8 shows an exploded view of the structure of the fixing member of the tightening device for workpieces of different models according to the present utility model.

Fig. 9 shows a partial block diagram of a tightening device for workpieces of different types according to the utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The basic principles of the utility model defined in the following description may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the utility model.

It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore the above terms should not be construed as limiting the present utility model.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Referring to fig. 1 to 3, a tightening apparatus for workpieces of different types capable of tightening a nut 800 to a workpiece 900 according to a preferred embodiment of the present utility model will be described in detail below.

Preferably, the workpiece 900 includes a first portion 910 and a second portion 920, and the nut 800 is movably mounted to either of the first portion 910 and the second portion 920 and preloaded to the other.

The tightening device for workpieces of different types comprises a device main body 10 and a tightening mechanism 20, wherein the tightening mechanism 20 comprises a tightening member 21 and a belt rotating assembly 22, the tightening member 21 is rotatably mounted on the device main body 10, the tightening member 21 is connected with the belt rotating assembly 22, and the tightening member 21 can be driven by the belt rotating assembly 22 to rotate for a predetermined number of turns.

The center of the screwing member 21 forms a mounting hole 2101, the shape and size of the mounting hole 2101 are adapted to the nut 800, and the screwing member 21 can screw the nut 800 to the fixed workpiece 900 by driving the nut 800 to rotate. Compared with the manual tightening mode, the tightening degree of the nut 800 and the workpiece 900 is controlled, the situation that the workpiece 900 is damaged due to excessive tightening and the workpiece 900 is affected due to insufficient tightening is effectively avoided, and the assembly quality is improved.

The turning member 21 includes a turning piece 211, a turning piece 212, and at least one mounting assembly 213, and the turning piece 211 is rotatably mounted to the apparatus body 10 and connected to the belt turning assembly 22. The turning member 212 is detachably coupled to the turning member 211 by the mounting assembly 213. When the screw 212 is attached to the rotor 211, the axial center of the mounting hole 2101 coincides with the rotation center of the rotor 211. The rotating member 211 is assembled and integrally rotated by the screwing member 212 having a size different from that of the mounting hole 2101 to screw the nut 800 to the work 900 of a different model.

The mounting assembly 213 includes a mounting member 2131 and at least one mounting structure 2132, the mounting structure 2132 being formed at any location on the rotating member 211 and the twisting member 212, and the mounting structure 2132 being sized to fit the mounting member 2131. The twist member 212 is detachably connected to the rotation member 211 by the cooperation of the mounting member 2131 and the mounting structure 2132.

Preferably, the mounting structure 2132 is provided with one, the mounting structure 2132 is implemented as a screw hole formed in the rotation member 211, and the mounting member 2131 is implemented as a bolt rotatably mounted to the rotation member 212. The bolt is turned into the screw hole to fasten the screwing member 212 to the rotating member 211.

As a deformable matter, the mounting structures 2132 are provided in two, the two mounting structures 2132 are implemented as screw holes formed in the rotation piece 211 and the screwing piece 212, respectively, and the mounting piece 2131 is implemented as a bolt. The bolts are screwed to the rotation member 211 and the rotation member 212 at the same time to fasten the rotation member 212 to the rotation member 211.

It will be appreciated by those skilled in the art that the mounting assembly 213 is also implemented as a snap-fit, and the purpose of detachably connecting the rotating member 211 and the screwing member 212 is also achieved, which will not be described herein.

Preferably, a coupling hole 21101 is formed at the center of the rotation member 211, the rotation member 211 has a passage 21102, and the passage 21102 extends from the edge of the rotation member 211 toward the coupling hole 21101 and communicates with the coupling hole 21101. The passage 21102 communicates with the mounting hole 2101 when the turning member 212 is fitted to the turning member 211. The size of the attaching hole 21101 and the channel 21102 are larger than the size of the portion of the workpiece 900 where the nut 800 is provided. When the dimensions of the end portions of the first portion 910 and the second portion 920 that are away from each other are larger than the dimensions of the mounting hole 2101, the workpiece 900 may pass through the channel 21102 in a manner that a part of the first portion 910 and a part of the second portion 920 are separated from both sides of the turning member 21, and drive the nut 800 to be finally clamped to the mounting hole 2101, so that the nut 800 and the workpiece 900 can be assembled later.

Referring to fig. 2, further, the belt rotating assembly 22 includes at least one transmission member 221 and a rotating member 222, the transmission member 221 is connected to the rotating member 211, the transmission member 221 is mounted on the rotating member 222, and the rotating member 222 can drive the transmission member 221 to rotate and drive the rotating member 21 to rotate together through the cooperation of the transmission member 221 and the rotating member 211, so as to automatically tighten the nut 800 on the workpiece 900.

Preferably, the transmission member 221 is implemented as a gear, and a circumferential side of the rotation member 211 forms teeth engaged with the gear, and the rotation member 211 can be rotated by being engaged with the gear to be integrally driven by the rotation member 222.

Referring to fig. 1, 4, 5 and 6, the screwing member 21 supports the work 900 when the nut 800 fitted to the work 900 is engaged with the mounting hole 2101. The tightening device for workpieces of different types further comprises at least one clamping mechanism 30, wherein the clamping mechanism 30 is mounted on the device main body 10 and is located at a position adjacent to the screwing member 21, and the clamping mechanism 30 is used for fixing the workpiece 900 supported by the screwing member 21.

The clamping mechanism 30 comprises a clamping member 31, the clamping member 31 comprises two clamping assemblies 311 and at least one clamping control assembly 312, the two clamping assemblies 311 are positioned on the periphery of the workpiece 900 carried by the screwing member 21, the clamping assemblies 311 are mounted on the clamping control assembly 312, and the clamping control assembly 312 is arranged to drive the two clamping assemblies 311 to approach or separate from each other so as to clamp the workpiece 900, so that the nut 800 can move relative to the workpiece 900 when driven to rotate by the screwing member 21, and the screwing operation can be normally performed.

Preferably, the control clip assembly 312 is provided with one, and the control clip assembly 312 includes a screw 3121, a guide rail 3122, and a driving member 3123, wherein the screw 3121 is mounted to the driving member 3123, and the driving member 3123 is configured to drive the screw 3121 to rotate. The screw 3121 is in threaded connection with the two clamping assemblies 311 and has opposite threaded directions, the guide rail 3122 is mounted on the apparatus main body 10, the clamping assemblies 311 are slidably disposed on the guide rail 3122, and the screw 3121 can be driven to rotate to drive the two clamping assemblies 311 to approach or separate from each other along the guide rail 3122, so as to achieve clamping or loosening actions.

Preferably, the driving member 3123 is implemented as a motor.

As a deformable manner, two control clamp assemblies 312 are provided, the control clamp assemblies 312 are implemented as air cylinders, and the two air cylinders can respectively control the two clamping assemblies 311 to move so as to enable the two clamping assemblies 311 to approach or separate from each other, so that the purpose of clamping the workpiece 900 can be achieved.

Further, the clamping assembly 311 includes a clamping member 3111 and an abutment member 3112, the abutment member 3112 being coupled to the clamp control assembly 312, the clamping member 3111 being detachably coupled to the abutment member 3112 by at least one fastener, the clamping member 3111 being operable to clamp the workpiece 900 while the abutment member 3112 is moved by the clamp control assembly 312.

In this way, by changing the clamping members 3111 of different types to match the workpieces 900 of different types, it is ensured that the clamped positions of the workpieces 900 of each type are kept uniform, so that the workpieces 900 of different types are stably clamped when the nuts 800 are tightened, and the tightening operation is ensured to be performed smoothly.

Preferably, the connector 3112 has a slot 311201, the clamp 3111 can slide into or out of the slot 311201, and the clamp 3111 is configured to be mounted to the connector 3112 by the fastener in a form of being partially engaged with the slot 311201 and partially protruding from the slot 311201 and being located on a peripheral side of the workpiece 900 carried by the twisting member 21. In this way, when the clamping member 3111 is replaced, the clamping member 3111 may be first clamped to the clamping groove 311201 to achieve initial assembly, and then the clamping member 3111 is fastened to the connector 3112 by using the fastening member, so as to increase convenience in assembly and improve stability of connection.

The clamping mechanism 30 further includes a first lifting assembly 32, the first lifting assembly 32 includes a first lifting member 321 and at least one first driving member 322, the clamping member 31 is disposed on the first lifting member 321, the first lifting member 321 is mounted on the first driving member 322, and the first driving member 322 can drive the first lifting member 321 to move close to or far away from the turning member 21, so that the clamping member 31 can be driven by the first lifting member 321 to integrally approach or far away from the workpiece 900 carried by the turning member 21, thereby avoiding a sufficient space for taking and placing the workpiece 900.

Preferably, the first lifting assembly 32 is implemented as a cylinder.

Referring to fig. 1, 7 and 8, the tightening apparatus for workpieces of different models further includes a fixing mechanism 40, and the fixing mechanism 40 is located at the bottom of the screwing member 21. When the workpiece 900 is supported by the screwing member 21 in such a manner that the nut 800 is inserted into the mounting hole 2101 and the first portion 910 and the second portion 920 are spaced apart by the screwing member 21, the first portion 910 is on the same side as the clamping mechanism 30, the clamping member 31 is used for clamping the first portion 910, the second portion 920 is on the same side as the fixing mechanism 40, and the fixing mechanism 40 is used for fixing the second portion 920.

Further, the fixing mechanism 40 includes a fixing member 41, the fixing member 41 includes a fixing piece 411, the fixing piece 411 is located in the extending direction of the mounting hole 2101, the fixing piece 411 has a fixing space 41101, and the fixing space 41101 is shaped and sized to fit the second portion 920. The fixing space 41101 corresponds to the second portion 920 when the work 900 is carried by the turning member 21 in a form in which the nut 800 is engaged with the mounting hole 2101. The fixing member 411 is used to fix the second portion 920 so as to allow the nut 800 to rotate with respect to the second portion 920.

The fixing member 41 further includes a mounting base 412 and at least one assembly 413, and the fixing piece 411 is detachably assembled to the mounting base 412 through the assembly 413.

In this way, by removing the fixing member 411 from the mounting base 412 and replacing the fixing member 411 with the fixing space 41101 having the type matching the second portion 920, it is ensured that the fixing mechanism 40 can fix the second portion 920 having a different type so as to tighten the nut 800 to the workpiece 900 having a different type.

The fitting assembly 413 includes a fitting 4131 and at least one fitting structure 4132, the fitting structure 4132 being formed at any one of the fixing member 411 and the mounting base 412, and the fitting structure 4132 being sized to fit the fitting 4131. The fixing member 411 is detachably mounted to the mount 412 by the cooperation of the fitting 4131 and the mounting structure 4132.

Preferably, the mounting base 412 has a locking slot 41201, and the fixing member 411 is sized to fit in the locking slot 41201, and the fixing member 411 can move into or out of the locking slot 41201. After the fixing piece 411 moves into the locking groove 41201, the fixing piece 411 is stably supported by the mounting base 412 in a form of being partially locked in the locking groove 41201 and partially extending out of the locking groove 41201 and extending toward the screwing member 21, so as to increase the assembling firmness of the fixing piece 411 and the mounting base 412.

Preferably, the fitting 4131 is implemented as a bolt, and the fitting structure 4132 is provided with two screw holes respectively implemented as screw holes formed in the fixing member 411 and the mounting seat 412. When the fixing piece 411 is located in the fastening slot 41201 and the screw hole thereof corresponds to the screw hole of the mounting seat 412, the bolt is connected to the fixing piece 411 and the mounting seat 412 through simultaneous threads so as to firmly assemble the fixing piece 411 to the mounting seat 412.

As a deformable matter, the fitting 4131 is implemented as a bolt, and the fitting structure 4132 is provided with one and implemented as a screw hole formed in the mount 412. The bolt is connected to the mounting seat 412 through threads and abuts against the fixing piece 411 located in the clamping groove 41201, so that the fixing piece 411 is firmly assembled to the mounting seat 412.

The fixing mechanism 40 further includes a second lifting assembly 42, where the second lifting assembly 42 includes a second lifting member 421 and at least one second driving member 422, the fixing member 41 is disposed on the second lifting member 421, the second lifting member 421 is mounted on the second driving member 422, and the second driving member 422 can drive the second lifting member 421 to move close to or away from the rotating member 21, so that the fixing member 41 can be driven by the second lifting member 421 to integrally approach or separate from the workpiece 900 carried by the rotating member 21, so as to avoid interference between the workpiece 900 carried by the rotating member 21 and the fixing member 41, and not to be effectively fixed by the fixing member 41, and at the same time, facilitate the workpiece 900 to be taken.

Preferably, the second displacement member 422 is implemented as a cylinder.

Referring to fig. 9, further, the tightening apparatus for different types of workpieces further includes a controller 50, wherein the belt-turning assembly 22 and the clamp control assembly 312 are controllably connected to the controller 50, and the controller 50 is configured to control the operation of the belt-turning assembly 22 and the clamp control assembly 312.

Referring to fig. 7 and 9, the tightening apparatus for different types of workpieces further includes a torque detection mechanism 60, the torque detection mechanism 60 including a torque sensor 61, the torque sensor 61 being communicatively coupled to the controller 50, the torque sensor 61 being drivingly coupled to the stationary member 41. When the nut 800 is assembled to the workpiece 900 and the nut 800 is driven by the turning member 21 to rotate together with the workpiece 900, the torque sensor 61 is provided to detect the torque transmitted from the workpiece 900 to the fixing member 41, thereby detecting the degree of tightening of the nut 800 and the workpiece 900. The sensor 50 is capable of controlling the operation of the belt-turning assembly 22 and the clamp control assembly 312 based on feedback from the torque sensor 61.

The torque detecting mechanism 60 further includes a transmission assembly 62 and an elastic member 63, wherein the transmission assembly 62 is installed between the mounting base 412 and the elastic member 63, and the mounting base 412 can be driven by the screwing member 21 to rotate together after the nut 800 is assembled with the workpiece 900, so as to transmit torque to the elastic member 63 through the transmission assembly 62. The torque sensor 61 is connected to the elastic member 63, and the torque sensor 61 can detect the torque received when the elastic member 63 is elastically deformed.

Preferably, the torque detecting mechanism 60 is provided to the second lifter 421, and the torque detecting mechanism 60 can be lifted and lowered together with the fixing member 41 at this time to detect torque.

Preferably, the transmission assembly 62 is implemented as two first bevel gears, and the two first bevel gears are meshed, wherein one first bevel gear is mounted on the mounting seat 412 and is coaxial with the mounting hole 2101 of the screwing member 21, and the other first bevel gear is connected with the elastic member 63, so that the mounting seat 412 can transmit torque to the elastic member 63 by using the meshing action between the two first bevel gears.

Preferably, the elastic member 63 is implemented as a torsion spring.

Specifically, when the workpiece 900 is carried by the turning member 21 in the form of the nut 800 being inserted into the mounting hole 2101, the first lifting assembly 32 controls the clamping member 31 to move close to the workpiece 900 carried by the turning member 21, the controller 50 controls the clamp control assembly 312 to operate, so that the clamp control assembly 312 drives the clamping assembly 311 to move close to the workpiece 900 to clamp the first portion 910 of the workpiece 900, and simultaneously the second lifting assembly 42 controls the fixing member 41 to move close to the workpiece 900 carried by the turning member 21, so that the second portion 920 of the workpiece 900 is clamped in the fixing space 41101, thereby fixing the second portion 920. At this time, the controller 50 controls the belt rotating assembly 22 to operate, the belt rotating assembly 22 drives the rotating member 21 to rotate for a predetermined number of turns, and the rotating member 21 drives the nut 800 to rotate for a predetermined number of turns relative to the workpiece 900, so as to assemble the first portion 910 with the second portion 920.

When torque is detected, the controller 50 controls the clamp control assembly 312 to reversely operate, the clamp control assembly 312 drives the clamp control assembly 311 to move away from the workpiece 900 to release the first portion 910 of the workpiece 900, at this time, the turning member 21 continues to rotate, the nut 800 clamped to the turning member 21 drives the workpiece 900 to rotate, the workpiece 900 transmits torque to the elastic member 63 through the fixing member 41 and the transmission assembly 62, and the torque sensor 61 detects the torque received by the elastic member 63.

If the torque sensor 61 detects that the torque received by the elastic member 63 reaches the predetermined torque value, the controller 50 receives the feedback from the torque sensor 61 and controls the belt rotating assembly 22 to stop running, and the nut 800 and the workpiece 900 are screwed down; if the torque sensor 61 detects that the torque received by the elastic member 63 is lower than the predetermined torque value, the controller 50 receives feedback from the torque sensor 61, controls the clamp control assembly 312 to clamp the first portion 910 of the workpiece 900 by using the two clamp assemblies 311, and the turning member 21 continues to turn, so that the turning member 21 turns the nut 800 relative to the workpiece 900 and tightens the nut 800 on the workpiece 900, so that the assembly quality of the workpiece 900 is ensured.

It should be noted that, after the elastic member 63 is torqued and elastically deformed, the elastic member 63 can reset the fixing member 41 without the driving assembly 62 and the fixing member 41 being driven by external force, so as to perform the next tightening operation, so as to avoid the dislocation of the fixing member 411 and not to effectively fix the second portion 920.

Referring to fig. 7, the tightening apparatus for workpieces of different types further includes a re-rotation assembly 70, the re-rotation assembly 70 is connected to the transmission assembly 62, and the re-rotation assembly 70 is configured to rotate and reset the fixing member 41 through the transmission assembly 62.

In this way, the re-rotation assembly 70 cooperates with the elastic member 63 to avoid the situation that the elastic member 63 has insufficient elastic force and cannot effectively reset the fixing member 41, so as to ensure that the fixing member 41 is effectively reset.

The re-rotation assembly 70 is controllably connected to the controller 50. When the controller 50 receives feedback from the torque sensor 61 to control the belt rotating assembly 22 to stop operating, the controller 50 can control the re-rotating assembly 70 to operate so as to drive the fixing member 41 to rotate and reset.

Preferably, when the transmission assembly 62 is implemented as two first bevel gears, the re-rotation assembly 70 is implemented to include a second bevel gear engaged with the first bevel gear provided to the mount 412 and a motor mounted to an output shaft of the motor, the motor being capable of driving the second bevel gear to rotate, the second bevel gear being engaged with the first bevel gear provided to the mount 412 to drive the fixing member 41 to rotate and reset, and simultaneously the first bevel gear provided to the mount 412 being engaged with the first bevel gear provided to the elastic member 63 to assist the elastic member 63 to recover.

Working methods of tightening equipment for workpieces of different types are proposed, comprising the following steps:

according to the model of the workpiece 900, a proper screwing piece 212 is selected, and the screwing piece 212 is mounted on the rotating piece 211 through a mounting assembly 213 so as to be assembled into a screwing component 21;

the nut 800 disposed on the workpiece 900 is clamped in the mounting hole 2101 formed on the screwing piece 212, and the belt rotating assembly 22 drives the screwing member 21 to rotate, so that the screwing member 21 drives the nut 800 to rotate for a predetermined number of turns relative to the fixed workpiece 900, so as to screw the nut 800 on the workpiece 900.

Preferably, the working method of the tightening equipment for workpieces of different types comprises the following steps:

before the turning member 21 is turned, the clamping control assembly 312 controls the clamping assemblies 311 to move close to the workpiece 900 so as to clamp the workpiece 900 by the two clamping assemblies 311, thereby ensuring that the nut 800 can be turned relative to the workpiece 900.

Preferably, the working method of the tightening equipment for workpieces of different types comprises the following steps:

before the clamping assembly 311 performs a clamping operation, the first driving unit 322 controls the first lifter 321 to move close to the turning member 21 so that the clamping member 31 provided to the first lifter 321 integrally moves close to the workpiece 900, so as to perform the clamping operation.

Preferably, the working method of the tightening equipment for workpieces of different types comprises the following steps:

the clamping member 31 clamps the first portion 910 of the workpiece 900 while the fixing member 41 fixes the second portion 920 of the workpiece 900 such that the nut 800 can tightly fit the first portion 910 with the second portion 920 when the nut 800 is rotated relative to the workpiece 900.

Preferably, the working method of the tightening equipment for workpieces of different types comprises the following steps:

the second driving member 422 controls the second lifting member 421 to move close to the turning member 21, and the fixing member 41 provided at the second lifting member 421 moves close to the workpiece 900 provided at the turning member 21, so that the second portion 920 of the workpiece 900 is placed in the fixing space 41101, thereby fixing the second portion 920.

Preferably, the working method of the tightening equipment for workpieces of different types comprises the following steps:

after the nut 800 is driven by the screwing member 21 to rotate relative to the workpiece 900 for a predetermined number of turns, the controller 50 controls the clamp control assembly 312 to operate, and the clamp control assembly 312 drives the clamp control assembly 311 to move away from the first portion 910 to release the first portion 910;

the screwing member 21 continues to rotate, at this time, the nut 800 drives the fixing member 41 to rotate through the workpiece 900, the torque sensor 61 detects the torque transmitted from the workpiece 900 to the fixing member 41, when the torque detected by the torque sensor 61 reaches a predetermined torque value, the controller 50 controls the belt rotating assembly 22 to stop operating, and when the torque detected by the torque sensor 61 is lower than the predetermined torque value, the controller 50 controls the clamp controlling assembly 312 to operate so as to clamp the first portion 910 by the clamping assembly 311, and at the same time, the screwing member 21 continues to rotate so as to continue to perform the screwing operation.

Preferably, the working method of the tightening equipment for workpieces of different types comprises the following steps:

the fixing member 41 transmits torque to the elastic member 63 through the transmission assembly 62, and the torque sensor 61 indirectly detects torque between the nut 800 and the workpiece 900 by detecting torque received by the elastic member 63.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The advantages of the present utility model have been fully and effectively realized. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from the principles described.

Claims (10)

1. A screw up equipment for different model work pieces can screw up a nut in a work piece, its characterized in that, screw up equipment for different model work pieces includes:

an apparatus main body;

a twist mechanism, twist mechanism includes:

a screwing member having a mounting hole formed at a center thereof, the mounting hole having a shape and a size adapted to the nut, the screwing member being capable of screwing the nut to the workpiece to be fixed by driving the nut to rotate, the screwing member including a rotator rotatably mounted to the apparatus body, a screwing member detachably connected to the rotator through the mounting assembly, and at least one mounting assembly integrally rotated by the screwing member having a rotation center overlapping with a rotation center of the rotator when the screwing member is assembled to the rotator, the rotator being assembled to the workpiece of a different model by the screwing member having a different size from the mounting hole;

and the rotating piece is connected with the belt rotating assembly, and the screwing component can be driven by the belt rotating assembly to rotate for a preset number of turns.

2. The tightening device for workpieces of different sizes according to claim 1, said workpieces including a first portion and a second portion, said nut being movably mounted to either one of said first portion and said second portion and preloaded to the other, characterized in that said rotating member has a central mounting hole, said rotating member has a passage extending from an edge of said rotating member toward said mounting hole and communicating with said mounting hole, said passage communicating with said mounting hole when said rotating member is assembled to said rotating member, said mounting hole and said passage each having a size larger than a size of said nut portion provided to said workpiece, said workpiece being capable of passing through said passage and driving said nut to be ultimately snapped to said mounting hole with a portion of said first portion and a portion of said second portion spaced from both sides of said rotating member when said first portion and said second portion are each larger than a size of said mounting hole.

3. The tightening apparatus for workpieces of different types according to claim 2, wherein the screwing member supports the workpiece when the nut fitted to the workpiece is engaged with the mounting hole, the tightening apparatus for workpieces of different types further comprising at least one clamping mechanism mounted to the apparatus main body at a position adjacent to the screwing member, the clamping mechanism being for fixing the workpiece supported by the screwing member.

4. A tightening device for workpieces of different types according to claim 3, wherein the clamping mechanism comprises a clamping member comprising two clamping assemblies and at least one clamping control assembly, the two clamping assemblies being located on the peripheral sides of the workpieces carried by the tightening member, the clamping assemblies being mounted to the clamping control assembly, the clamping control assembly being arranged to move the two clamping assemblies towards and away from each other to clamp the workpieces.

5. The tightening device for workpieces of different types according to claim 4, wherein the clamping mechanism further comprises a first lifting assembly, the first lifting assembly comprises a first lifting member and at least one first driving member, the clamping member is disposed on the first lifting member, the first lifting member is mounted on the first driving member, and the first driving member can drive the first lifting member to move close to or away from the screwing member, so that the clamping member can be driven by the first lifting member to integrally approach or separate from the workpiece carried by the screwing member.

6. The tightening device for workpieces of different types according to claim 4, further comprising a fixing mechanism at a bottom of the screwing member, the first portion being on a same side as the clamping mechanism, the second portion being on a same side as the fixing mechanism, the fixing mechanism being for fixing the second portion when the workpiece is supported by the screwing member in a state in which the nut is inserted into the mounting hole and the first portion and the second portion are spaced apart by the screwing member.

7. The tightening device for different types of workpieces according to claim 6, wherein the fixing mechanism includes a fixing member including a fixing piece located in an extending direction of the mounting hole, the fixing piece having a fixing space having a shape and a size adapted to the second portion, the fixing space corresponding to the second portion when the workpiece is carried by the tightening member in a form in which the nut is engaged with the mounting hole, the fixing member being for fixing the second portion, the fixing member further including a mount to which the fixing piece is mounted.

8. The tightening device for workpieces of different types according to claim 7, wherein the fixing mechanism further comprises a second lifting assembly, the second lifting assembly comprises a second lifting member and at least one second driving member, the fixing member is disposed on the second lifting member, the second lifting member is mounted on the second driving member, and the second driving member can drive the second lifting member to move close to or away from the screwing member, so that the fixing member can be driven by the second lifting member to integrally approach or separate from the workpiece carried by the screwing member.

9. The tightening device for workpieces of different types according to claim 7, further comprising a controller, wherein the belt rotating assembly and the clamp controlling assembly are controllably connected to the controller, the controller is configured to control the belt rotating assembly and the clamp controlling assembly to operate, the tightening device for workpieces of different types further comprises a torque detecting mechanism comprising a torque sensor communicatively connected to the controller, the torque sensor is in transmission connection with the fixing member, the torque sensor is configured to detect torque transmitted from the workpiece to the fixing member when the nut is assembled to the workpiece and the nut is driven by the rotating member and drives the workpiece to rotate together, the detecting mechanism is configured to control the operation of the belt rotating assembly and the clamp controlling assembly according to feedback from the torque sensor, the detecting mechanism comprises a torque sensor, the torque sensor is further configured to be communicatively connected to the controller, and is further configured to be deformed by the elastic member when the nut is assembled to the workpiece and the nut is driven by the rotating member, and the elastic member is mounted to the elastic member.

10. The tightening device for workpieces of different types according to claim 9, further comprising a re-rotation assembly connected to the transmission assembly, the re-rotation assembly being controllably connected to the controller, the re-rotation assembly being configured to rotate the fixing member through the transmission assembly.