Nut locking device and compressor nut locking equipment

Abstract

The utility model discloses a nut locking device and compressor nut locking equipment, relates to the technical field of assembly equipment, and aims to solve the problem that a shielding object exists above an area, needing to lock a nut, of the equipment, and a locking mechanism cannot tighten the nut. The nut locking device comprises a tightening head, a universal joint, a driving device and a supporting assembly. One end of the tightening head is provided with a limiting part for clamping the nut, and one end of the universal joint is connected with the other end of the tightening head. The driving device is connected with the other end of the universal joint so as to drive the universal joint to rotate, and then the universal joint drives the tightening head to rotate. One end of the supporting assembly is connected with the driving device, and the other end of the supporting assembly is connected with the other end of the tightening head and used for supporting the universal joint. The driving device and the tightening head are connected through the universal joint, the rotating shafts of the driving device and the tightening head can be located on different central axes, the tightening head is arranged on one side of the driving device in an offset mode, and the tightening head can stretch into a narrow locking area. The problem that locking cannot be achieved due to the fact that shielding exists above the locking area can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembly equipment, in particular to a nut locking device and a compressor nut locking device. Background Art

[0002] A common connection method is to achieve connection and fixation through a threaded connection between a nut and a screw.

[0003] Nuts are usually tightened onto screws manually, but manual tightening is inefficient. To improve efficiency, a nut locking mechanism can be used to lock the nut. When a nut locking mechanism is used to tighten a nut, the tightening module, sleeve, and screw of the locking mechanism must be aligned on the same central axis.

[0004] However, when an obstruction appears above the area where the nut needs to be tightened, the nut locking mechanism may not be placed above the area where it needs to be locked due to its size, and the nut cannot be tightened onto the screw through the locking mechanism. Utility Model Content

[0005] The embodiments of the present invention provide a nut locking device and a compressor nut locking apparatus, which solve the problem that the locking mechanism cannot tighten the nut when there is an obstruction above the area where the nut needs to be locked.

[0006] In order to achieve the above-mentioned purpose, the embodiments of the present invention adopt the following technical solutions:

[0007] An embodiment of the present application provides a nut locking device for tightening a nut to a screw. The nut locking device includes a tightening head, a universal joint, a driving device, and a support assembly. One end of the tightening head is provided with a limiting portion, which is used to clamp the nut. One end of the universal joint is connected to the other end of the tightening head, and the other end of the universal joint is connected to the driving device, so that the driving device drives the universal joint to rotate, and then the universal joint drives the tightening head to rotate. One end of the support assembly is connected to the driving device, and the other end of the support assembly is connected to the other end of the tightening head, and the tightening head can rotate relative to the support assembly.

[0008] In this way, when there is an obstruction above the area where the nut needs to be locked, the central axis of the tightening head and the driving device connected by the universal joint can be offset. When the nut is tightened, the nut locking device provided by the present application can offset the driving device to a position other than above the locking drive, so that only the main part of the nut locking device is placed above the locking area, that is, only the tightening head is placed above the locking area. By only extending the tightening head into the narrow locking area, the interference between the components of the nut locking device and the obstruction above the locking area is reduced, allowing the tightening head to threadably connect the nut to the screw.

[0009] In some embodiments, the support assembly includes a first support member and a second support member, wherein the second support member is inclined, and the distance between the end of the second support member closer to the first support member and the axis of the first support member is smaller than the distance between the end of the second support member farther from the first support member and the axis of the first support member. The universal joint includes a first section, a second section, and a third section, wherein one end of the first section is connected to the drive device. One end of the second section is in transmission connection with the other end of the first section, one end of the third section is in transmission connection with the other end of the second section, and the other end of the third section is connected to the other end of the tightening head.

[0010] In some embodiments, a first limiting hole is provided at one end of the second support member away from the first support member, and the tightening head is passed through the first limiting hole, and the tightening head is loosely fitted with the first limiting hole.

[0011] In some embodiments, the support assembly further includes a limiting member, the limiting member is provided with a second limiting hole, the tightening head is passed through the second limiting hole, and the tightening head is loosely matched with the second limiting hole.

[0012] In some embodiments, the tightening head includes a housing and a shaft. The other end of the support assembly is connected to the housing, and the housing defines a cavity. The shaft rotates within the cavity, one end of the shaft is connected to a universal joint, and the other end of the shaft is provided with a stop.

[0013] In some embodiments, the housing includes a first sub-housing and a second sub-housing. The first sub-housing is inserted into the first limiting hole, and the second sub-housing is connected to the first sub-housing and inserted into the second limiting hole. The outer circumference of the first sub-housing is threaded, and a limiting nut is threadedly connected to the outer circumference of the first sub-housing. The outer diameter of the limiting nut is larger than the diameter of the first limiting hole, and the limiting nut is located on the side of the second support member facing the drive device.

[0014] In some embodiments, the third section has a first through-hole axially defined therein, within which the shaft body is rotatably disposed. A second through-hole is radially defined therein at an end of the third section distal from the second section, the second through-hole communicating with the first through-hole. A third through-hole is radially defined therein at an end of the shaft body proximal to the third section, the third through-hole communicating with the second through-hole. Stopper bolts are provided within the second and third through-holes.

[0015] The present application also provides a compressor nut locking device including the aforementioned nut locking device. The compressor nut locking device also includes a locking station, a handling device, and a transport device. The nut locking device is connected to the transport device, so that the transport device drives the nut locking device to the locking station. The transport device is used to move the compressor to the locking station so that the nut locking device can lock the compressor.

[0016] In some embodiments, the nut locking device further includes a feeding station and a feeding device, wherein the feeding device is used to supply nuts, so that the transport device moves the nut locking device to the feeding station and picks up the nuts at the feeding station.

[0017] In some embodiments, the compressor nut locking device also includes an image acquisition device, which is connected to the transport device. The image acquisition device is used to obtain an image of the compressor so that the transport device can lock the nut according to the image of the compressor obtained by the image acquisition device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a nut locking device provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of a tightening head provided in an embodiment of the present application;

[0020] Figure 3 for Figure 2 A partial enlarged view of the tightening head;

[0021] Figure 4 for Figure 1 Schematic diagram of the middle support assembly;

[0022] Figure 5 for Figure 1 Schematic diagram of the universal joint;

[0023] Figure 6 for Figure 1 Another schematic diagram of the middle support assembly;

[0024] Figure 7 A schematic diagram of a position limiting member provided in an embodiment of the present application;

[0025] Figure 8 A cross-sectional view of a tightening head provided in an embodiment of the present application;

[0026] Figure 9 Another cross-sectional view of a tightening head provided in an embodiment of the present application;

[0027] Figure 10 A schematic diagram of a first sub-housing of a housing provided in an embodiment of the present application;

[0028] Figure 11 A schematic diagram of a compressor nut locking device provided in an embodiment of the present application;

[0029] Figure 12 for Figure 11 Schematic diagram of the compressor;

[0030] Figure 13 for Figure 12A partial enlarged view of the compressor;

[0031] Figure 14 A schematic diagram of a feeding device provided in an embodiment of the present application;

[0032] Figure 15 A schematic diagram of an image acquisition device provided in an embodiment of the present application.

[0033] Reference numerals:

[0034] Nut locking device-100;

[0035] Tightening head 1; housing 11; first sub-housing 111; second sub-housing 112; shaft 12; third through hole 120; stopper 1000;

[0036] Universal joint 2; first section 21; second section 22; third section 23; first through hole 230; second through hole 231;

[0037] Drive unit-3;

[0038] Support assembly-4; first support member-41; second support member-42; first limiting hole-420; limiting member-43; second limiting hole-430;

[0039] Compressor nut locking device-200;

[0040] Handling device-5; transport device-6; feeding device-7; image acquisition device-8; compressor-50; mounting portion-500; mounting hole-5000; bottom plate-51; screw-510. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0042] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, when describing pipelines or channels, the "connected" and "connected" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0045] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0046] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0047] The threaded connection between a nut and a screw rod is a common method for installing and fixing equipment, or for connecting and fixing equipment to each other. The nut is usually tightened onto the screw rod manually, but manual tightening is inefficient.

[0048] To improve assembly efficiency, a nut locking mechanism is used to tighten the nut onto the screw. When using a traditional nut locking mechanism, it is generally necessary to ensure that the nut locking mechanism's sleeve and the screw are aligned on the same central axis. However, in some unique assembly environments, traditional nut locking mechanisms may not be able to complete the locking operation. For example, if other structures are obstructing the area where the nut needs to be tightened, the nut locking mechanism's sleeve and screw may not be aligned on the same central axis, resulting in a failure to lock the nut.

[0049] In order to solve the problem that the locking mechanism cannot complete the locking due to other structures blocking the area where the nut needs to be tightened in the above-mentioned device, the present application provides a nut locking device.

[0050] like Figure 1 As shown, Figure 1 This is a schematic diagram of a nut locking device 100 provided in this application.

[0051] The nut locking device 100 includes a tightening head 1, such as Figure 2 As shown, a limiting portion 1000 is provided at one end of the tightening head 1, and the limiting portion 1000 is used to clamp the nut, so that when the tightening head 1 rotates, the nut can be driven to rotate, and then the nut is tightened on the screw to complete the locking work of the nut.

[0052] The above-mentioned limiting portion 1000 may be a groove structure, for example, Figure 3 As shown, the outline shape is a hexagonal groove structure, so that the limiting portion 1000 can be engaged with the hexagonal nut, and then the hexagonal nut engaged in the limiting portion 1000 can rotate with the tightening head 1, thereby being threadedly connected with the screw.

[0053] It should be noted that, when the above-mentioned limiting portion 1000 is a groove structure, it can also be a groove structure of other shapes, such as a groove structure with a quadrilateral outline shape, or a groove structure with a polygonal outline shape.

[0054] In other embodiments, the above-mentioned limiting portion 1000 can also be a protrusion structure, so that the limiting portion 1000 can be matched and connected with other types of nuts, thereby driving the nut to rotate and achieving the purpose of tightening the nut onto the screw.

[0055] The nut locking device 100 provided in the present application further includes a universal joint 2, one end of which is connected to the other end of the tightening head 1. The other end of the tightening head 1 refers to the end of the tightening head 1 opposite to the end where the limiting portion 1000 is provided.

[0056] The nut locking device 100 provided herein also includes a drive device 3. The other end of the universal joint 2 is connected to the drive device 3, so that when the drive device 3 is in operation, it can drive the universal joint 2 to rotate, thereby causing the universal joint 2 to rotate the tightening head 1. The nut engaged with the tightening head 1 rotates with the tightening head 1 and is then threadedly connected to the screw. The other end of the universal joint 2 refers to the end of the universal joint 2 that is not connected to the tightening head 1.

[0057] As can be seen from the foregoing, the nut locking device 100 provided herein connects the tightening head 1 and the drive device 3 via a universal joint 2. The universal joint 2 can transmit power and allows for a change in the angle between the two shafts connected at its ends. The universal joint 2 allows the tightening head 1 and the drive device 3 to be positioned on two rotating shafts with different axes, respectively. The power output by the drive device 3 is then transmitted to the tightening head 1, allowing the tightening head 1 to rotate under the drive of the drive device 3.

[0058] In this way, when the area where the nut needs to be locked is obstructed, the central axis of the tightening head 1 and the driving device 3, which are connected by the universal joint 2, can be offset. When the nut locking device 100 provided by this application is tightening the nut, the driving device 3 can be offset to a position other than above the locking drive, so that only the main part of the nut locking device 100 is placed above the locking area, that is, only the tightening head 1 is placed above the locking area. This reduces the interference between the components of the nut locking device 100 and the obstruction above the locking area, allowing the tightening head 1 to threadably connect the nut to the screw.

[0059] The nut locking device 100 provided in the present application further includes a support assembly 4, one end of which is connected to the driving device 3, and the other end of the support assembly 4 is connected to the other end of the tightening head 1, and the tightening head 1 can rotate relative to the support assembly 4. This ensures that when the driving device 3 drives the tightening head 1 to rotate, the support assembly 4 does not affect the rotation of the tightening head 1, thereby ensuring that the tightening head 1 can drive the nut to rotate and thread the nut onto the screw.

[0060] The support assembly 4 provides support for the universal joint 2, ensuring that the universal joint 2 remains stable. During the process of the drive device 3 driving the tightening head 1 to rotate, the relative positions of the drive device 3 and the tightening head 1 connected at both ends of the universal joint 2 do not change. The tightening head 1 can stably drive the nut to rotate.

[0061] In some embodiments, the support assembly 4 may be movably adjustable, and the support assembly 4 may adjust its own bending state according to the bending shape of the universal joint 2 .

[0062] For example, support assembly 4 may include two connected support sections, secured together by a screw and nut. The two support sections are at least partially overlapping, with a screw extending through the overlapping portion of the two support sections. Nuts are then tightened at each end of the screw to compress the two support sections, maintaining a constant position relative to each other. To adjust universal joint 2 and support assembly 4, the nuts securing the two support sections can be loosened, allowing the tilt of support assembly 4 and universal joint 2 to be adjusted. Once adjustment is complete, the nuts can be tightened.

[0063] like Figure 4 As shown, Figure 4 This is a schematic diagram of the support assembly 4 provided in this application.

[0064] The support assembly 4 may include a first support member 41 and a second support member 42. The second support member 42 is arranged at an angle, and the distance between the end of the second support member 42 closer to the first support member 41 and the axis of the first support member 41 is smaller than the distance between the end of the second support member 42 farther from the first support member 41 and the axis of the first support member 41.

[0065] In this way, the above-mentioned second support member 42 is tilted relative to the first support member 41, which can provide support for the universal joint 2, so that the universal joint 2 maintains a tilted posture, and the relative positions of the tightening head 1 and the driving device 3 connected by the universal joint 2 remain stable during the working process, thereby making the tightening head 1 stable when tightening the nut.

[0066] It should be noted that the position between the first support member 41 and the second support member 42 is relatively fixed. In other embodiments, the first support member 41 and the second support member 42 may also be movably connected, and the position between them can be adjusted according to the tilt of the universal joint 2. This allows for greater adaptability of the nut locking device 100 provided herein.

[0067] like Figure 5 As shown, Figure 5 for Figure 1 Schematic diagram of universal joint 2.

[0068] In some embodiments of the present application, the universal joint 2 may include a first section 21 , and one end of the first section 21 is connected to the driving device 3 .

[0069] The universal joint 2 may further include a second section 22, one end of which is drivingly connected to the other end of the first section 21, and the second section 22 is rotatable relative to the first section 21. It should be noted that the other end of the first section 21 refers to the end of the first section 21 that is not connected to the drive device 3.

[0070] The universal joint 2 may further include a third section 23, one end of which is drivingly connected to the other end of the second section 22, and the third section 23 is rotatable relative to the second section 22. The other end of the third section is connected to the other end of the tightening head 1. It should be noted that the other end of the second section 22 refers to the end of the second section 22 away from the first section 21. The other end of the third section 23 refers to the end of the third section 23 away from the second section 22, while the other end of the tightening head 1 refers to the end of the tightening head 1 without the limiter 1000.

[0071] In this way, because the first section 21 and the second section 22 are respectively connected to the ends of the second section 22, and the first section 21, the second section 22, and the third section 23 are relatively rotatable, the relative position between the drive device 3 and the tightening head 1, which are respectively connected to the first section 21 and the third section 23, can be changed. This allows the output shaft of the drive device 3 to be offset from the rotation axis of the tightening head 1, allowing some components outside the tightening head 1 to be offset from the area above the tightening head 1, thereby resolving the problem of obstruction above the locking area and interference between the nut locking device and the nut, resulting in an inability to complete the locking.

[0072] like Figure 6 As shown, the second support member 42 is provided with a first limiting hole 420 at one end away from the first support member 41, and the tightening head 1 is passed through the first limiting hole 420, and there is a clearance fit between the tightening head 1 and the first limiting hole 420. In this way, it can be ensured that when the driving device 3 drives the tightening head 1 to rotate through the universal joint 2, the second support member 42 will not affect the rotation of the tightening head 1, ensuring that the tightening head 1 can smoothly drive the nut to rotate so as to tighten the nut on the target screw.

[0073] The first limiting hole 420 of the second support member 42 can limit the tightening head 1, reduce the vibration or deviation of the tightening head 1 during rotation, and ensure that the tightening head 1 and the screw to be locked with the nut are on the same central axis.

[0074] like Figure 7 As shown, the support assembly 4 provided in the present application also includes a limiting member 43, which is provided with a second limiting hole 430. The tightening head 1 is also passed through the second limiting hole 430 opened on the limiting member 43, and there is also a clearance fit between the tightening head 1 and the second limiting hole 430.

[0075] In this way, the tightening head 1 can also be limited by the second limiting hole 430 provided on the limiting member 43 , thereby ensuring the stability of the tightening head 1 during the rotation process.

[0076] Next, the structure of the tightening head 1 will be described with reference to the accompanying drawings. Figure 8 As shown, the tightening head 1 includes a housing 11. The other end of the support assembly 4 is connected to the housing 11, and a cavity 110 is defined in the housing 11.

[0077] It should be noted that the connection between the housing 11 and the support assembly 4 can be a detachable connection or a fixed connection.

[0078] The tightening head 1 further includes a shaft 12 , which is rotatably disposed in the cavity 110 of the housing 11 . One end of the shaft 12 is connected to the universal joint 2 , and the other end of the shaft 12 is provided with a limit portion 1000 .

[0079] In this way, the shell 11 is connected to the support assembly 4 , and the shell 11 can provide support for the shaft 12 rotatably disposed in the cavity 110 , and then the shaft 12 rotatably disposed in the cavity 110 can rotate under the drive of the driving device 3 .

[0080] like Figure 10 As shown, the housing 11 includes a first sub-housing 111, and the first sub-housing 111 is disposed in the first limiting hole 420 (see Figure 6 The housing 11 further includes a second sub-housing 112 , which is connected to the first sub-housing 111 . The second sub-housing 112 is inserted into the second limiting hole of the limiting member 43 .

[0081] Among them, Figure 10 As shown, the outer circumference of the first sub-shell 111 is provided with a thread, and the outer circumference of the first sub-shell 111 is threadedly connected to the limiting nut 1110. The outer diameter of the limiting nut 1110 is larger than the first limiting hole 420 ( Figure 6 ), and the limiting nut 1110 is located on the side of the second support member 42 facing the driving device 3.

[0082] In this way, the first sub-housing 111 can be threadedly connected to the limiting nut 1110 and detachably inserted into the first limiting hole 420. In other words, the housing 11 can be detachably inserted into the first limiting hole 420 via the limiting nut 1110. This achieves a detachable connection between the housing 11 and the support assembly 4, making it easier to replace the tightening head 1. Simply unscrew the limiting nut 1110 from the housing 11.

[0083] Next, the connection between the shaft 12 and the universal joint 2 will be described with reference to the accompanying drawings. Figure 8 As shown, the third section 23 of the universal joint 2 is provided with a first through hole 230 along the axial direction, based on which the shaft 12 is rotatably arranged in the first through hole 230. Figure 9 As shown, the third section 23 of the universal joint 2 is located at one end away from the second section 22 , and a second through hole 231 is provided along the radial direction of the third section 23 , and the second through hole 231 is communicated with the first through hole 230 .

[0084] like Figure 9 As shown, a third through hole 120 is provided radially along the shaft body 12 at one end of the shaft body 12 near the third section 23 of the universal joint 2. The third through hole 120 is connected to the second through hole 120. Therefore, in the case of the second through hole 231 and the third through hole 120, a stopper bolt is inserted into the second through hole 231 and the third through hole 120.

[0085] In this way, the shaft body 12 can be inserted into the first through hole 230 of the third section 23 of the universal joint 2, and then the shaft body 12 is limited by the stop pins provided in the second through hole 231 and the third through hole 120, so that the shaft body 12 can be located in the first through hole 230 of the third section 23 of the universal joint 2 and the relative position between the shaft body 12 and the third section 23 of the universal joint 2 remains unchanged, that is, the shaft body 12 can be relatively fixed in the first through hole 230. When it is necessary to separate the shaft body 12 from the universal joint 2, the stop pins in the second through hole 231 and the third through hole 120 can be removed, thereby achieving a detachable connection between the shaft body and the universal joint 2.

[0086] As can be seen from the above, the shaft 12 and the universal joint 2 are detachably connected, and the housing 11 and the support assembly 4 are also detachably connected. This allows the tightening head 1 of the nut locking device 100 provided herein to be replaced independently. That is, when replacing the tightening head 1, only the components of the tightening head 1 need to be removed, and the remaining components do not need to be removed or replaced along with the tightening head 1.

[0087] It should be noted that as the tightening head 1 is used more and more times, the limit portion 1000 provided on the tightening head 1 will be worn. If the wear is severe, it will not be able to cooperate with the nut, and thus the nut will not be able to rotate with the tightening head 1. Therefore, the tightening head 1 needs to be replaced in time.

[0088] In the prior art, the tightening head 1 is connected to other components, requiring the replacement of the tightening head 1 with all its associated components. For example, the support assembly, which provides support, must be fixedly connected to the tightening head, increasing maintenance costs. However, the tightening head 1 provided in this application is detachably connected to the support assembly 4, allowing only the tightening head 1 to be replaced, thereby reducing maintenance costs.

[0089] On this basis, the present application also provides a compressor nut locking device. Figure 11 As shown, Figure 11 This is a schematic diagram of the compressor nut locking device 200 provided in this application.

[0090] The compressor nut locking device 200 includes the nut locking device 100 . The compressor nut locking device 200 provided in the present application may further include a transport device 5 , the nut locking device 100 being connected to the transport device 5 and being able to move with the transport device 5 .

[0091] The compressor nut locking device 200 further includes a transport device 6 (the figure shows only a portion of the transport device; the transport device may be composed of multiple identical parts connected together). The transport device 6 is used to move the compressor 50 to the locking position so that the nut locking device can lock the compressor 50. It should be noted that the transport device 6 may be a transmission belt.

[0092] For example, Figure 12 As shown, the compressor 50 is usually fixed on the base plate 51, and the fixing method is a nut and screw thread connection. Figure 13 The bottom plate 51 is provided with a screw 510, and the compressor 50 is provided with a mounting portion 500 correspondingly. The mounting portion 500 is formed with a mounting hole 5000. Based on this, the screw 510 is passed through the mounting hole 5000, and the compressor 50 can be fixed by further screwing a nut on the screw 510.

[0093] On this basis, if Figure 14 As shown, the nut locking device 200 provided in this application may also include a feeding station and a feeding device 7. The feeding device 7 is used to supply nuts so that the transport device 5 moves the nut locking device 100 to the feeding station and the nut locking device 100 picks up the nuts at the feeding station. For example, the tightening head 1 can attract the nuts through magnetic attraction and connect them to the limiting portion 1000.

[0094] On this basis, if Figure 15 As shown, the compressor nut locking device 200 provided in the present application further includes an image acquisition device 8, which is connected to the transport device 5 and can move with the transport device 5. The image acquisition device 8 is used to capture an image of the compressor 50, so that the transport device 5 can lock the compressor 50 based on the image of the compressor 50 captured by the image acquisition device 8.

[0095] It should be noted that the image acquisition device 8 captures an image of the mounting portion 500 of the compressor 50. Furthermore, while capturing the image of the mounting portion 500, the image acquisition device 8 can also capture an image of the screw 510. Based on this, the image captured by the image acquisition device 8 can guide the nut locking device to perform locking.

[0096] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprise" does not exclude other components or steps, and "a" or "an" does not exclude multiple components or steps. A single processor or other unit may implement several functions listed in the claims. The fact that certain measures are recorded in different dependent claims does not mean that these measures cannot be combined to produce good results.

[0097] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

[0098] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A nut locking device, characterized in that: include: A tightening head, one end of which is provided with a limiting portion, the limiting portion being used for clamping the nut; a universal joint, one end of which is connected to the other end of the tightening head; A driving device, the other end of the universal joint is connected to the driving device, so that the driving device drives the universal joint to rotate, and then the universal joint drives the tightening head to rotate; A support assembly, one end of the support assembly is connected to the driving device, the other end of the support assembly is connected to the other end of the tightening head, and the tightening head can rotate relative to the support assembly.

2. The nut locking device according to claim 1, characterized in that: The support assembly comprises: a first support member; a second support member, the second support member being arranged obliquely, wherein a distance between an end of the second support member closer to the first support member and an axis of the first support member is smaller than a distance between an end of the second support member farther from the first support member and the axis of the first support member; The universal joint comprises: a first section, one end of which is connected to the driving device; a second section, one end of the second section being transmission-connected to the other end of the first section; The third section, one end of the third section is transmission-connected to the other end of the second section, and the other end of the third section is connected to the other end of the tightening head.

3. The nut locking device according to claim 2, characterized in that: A first limiting hole is provided at one end of the second supporting member away from the first supporting member, and the tightening head is passed through the first limiting hole, and the tightening head is loosely fitted in the first limiting hole.

4. The nut locking device according to claim 3, characterized in that: The support assembly further comprises: The limiting member is provided with a second limiting hole, the tightening head is passed through the second limiting hole, and the tightening head and the second limiting hole are loosely matched.

5. The nut locking device according to claim 4, characterized in that: The tightening head comprises: a housing, the other end of the support assembly being connected to the housing, and a cavity being provided in the housing; A shaft body is rotatably arranged in the cavity, one end of the shaft body is connected to the universal joint, and the other end of the shaft body is provided with the limiting portion.

6. The nut locking device according to claim 5, characterized in that: The housing comprises: a first sub-shell, the first sub-shell being inserted into the first limiting hole; a second sub-housing, the second sub-housing being connected to the first sub-housing and being inserted into the second limiting hole; Wherein, the outer circumference of the first sub-shell is provided with a thread, the outer circumference of the first sub-shell is threadedly connected to a limiting nut, the outer diameter of the limiting nut is larger than the diameter of the first limiting hole, and the limiting nut is located on the side of the second support member facing the driving device.

7. The nut locking device according to claim 5, characterized in that: The third section is provided with a first through hole along the axial direction, and the shaft body is rotatably arranged in the first through hole; The third section is located at one end away from the second section, and a second through hole is provided along the radial direction of the third section, the second through hole being connected to the first through hole; A third through hole is provided at one end of the shaft body close to the third section along the radial direction of the shaft body, and the third through hole is communicated with the second through hole; Wherein, limiting bolts are passed through the second through hole and the third through hole.

8. A compressor nut locking device, characterized in that: comprising a nut locking device as described in any one of claims 1 to 7; Locking station, A handling device, wherein the nut locking device is connected to the handling device so that the handling device drives the nut locking device to move to the locking position; A transport device is used to move the compressor to the locking position so that the nut locking device can lock the compressor.

9. The compressor nut locking device according to claim 8, characterized in that: The nut locking device also includes: Feeding station, A feeding device is used to supply nuts so that the transport device moves the nut locking device to the feeding station and picks up the nuts at the feeding station.

10. The compressor nut locking device according to claim 8, characterized in that: The compressor nut locking device also includes: An image acquisition device is connected to the transport device, and is used to acquire an image of the compressor so that the transport device is locked according to the image of the compressor acquired by the image acquisition device.

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