Automatic bolt tightening adapter

Abstract

The utility model discloses an automatic bolt tightening adapter, which belongs to the technical field of bolt tightening adapters and comprises a connecting disc mounted on external driving equipment, a constant-angle telescopic rotating connecting piece fixedly arranged on one side of the connecting disc, and an adapter disc mounted at the front end of the constant-angle telescopic rotating connecting piece. And four movable transmission parts and four static transmission parts which are arranged in a circumferential array at equal intervals are mounted on the front end surface of the connecting disc and are fixedly connected in the connecting disc. According to the technical key points, a movable transmission part mounted on the adapter can be converted in a manner of rotating the adapter, so that bolt joints of different models or forms are connected to an output shaft of external driving equipment, the external equipment can directly drive the current bolt joint to rotate, and automatic tightening of bolts is completed; by means of the switching mode, switching of the bolt connectors can be rapidly achieved, operation is easy, and the machining efficiency and continuity can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt tightening adapters, in particular to an automatic bolt tightening adapter. Background Technique

[0002] In the rapidly developing automotive industry, the components used must withstand high stresses, so high requirements are placed on fastening technologies. For example, in the body structure, the design of composite materials is increasing, and different materials must be firmly and durably fastened. In addition to single-sided contact, the removability of fasteners is also very important, especially regarding recyclability. Under these complex conditions, FDS (flow drill) screws can be used, which can fix thin metal sheets made of steel and aluminum without pre-drilling holes, and have excellent connection quality. Moreover, the formed flanging increases the thread engagement and improves the strength of the threaded connection without generating unnecessary metal chips.

[0003] During automobile production, bolt automatic tightening equipment is usually used for bolt connection. The bolt automatic tightening equipment is rotationally connected to the nut through a bolt joint. However, usually only a small part of the materials may use various models and different forms of bolts. Therefore, when carrying out the operation of tightening bolts, it is necessary to frequently replace different joints to enable the automatic screw tightening equipment to work normally and continuously. Currently, some bolt automatic tightening equipment usually disassembles and then installs the bolt joint when replacing the bolt joint, so as to achieve the conversion of the bolt joint. The above process takes a certain amount of loading and unloading time, making the conversion of the joint not fast and continuous enough, which will affect the production efficiency. Therefore, in view of the above problems, an automatic bolt tightening adapter is proposed. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an automatic bolt tightening adapter. The bolt tightening adapter can connect different models or forms of bolt joints installed thereon to the output shaft of an external driving device by rotating a transfer disk. In this process, first pull the transfer disk to separate the driving insertion shaft from the driving sleeve, then rotate the transfer disk to make any other bolt joint rotate to a specified position, and transmit the driving part and the static part through the engagement of the driving insertion shaft and the driving sleeve. At this time, the external device can directly drive the current bolt joint to rotate to complete the automatic tightening of the bolt. This transfer method of the bolt joint can quickly realize the conversion of the bolt joint, and the operation is simple, which can improve the processing efficiency and continuity, and solves the technical problem that the bolt joint needs to spend a certain amount of loading and unloading time during conversion in the prior art, making the conversion of the joint not fast and continuous enough and affecting the production efficiency.

[0005] The technical solution adopted by the embodiments of the present application to solve its technical problems is:

[0006] A bolt automatic tightening adapter comprises a connecting disk mounted on an external driving device, a fixed-angle telescopic rotating connecting member fixedly arranged on one side of the connecting disk, an adapter disk mounted on the front end of the fixed-angle telescopic rotating connecting member, and having four dynamic transmission members arranged in an equidistant circular array mounted on its front end surface, and a static transmission member fixedly connected in the connecting disk, wherein a transmission plug shaft is fixedly arranged at the rear end of the dynamic transmission member, and a transmission sleeve is fixedly arranged at the front end of the static transmission member, the transmission plug shaft can be inserted into the transmission sleeve and tightly connected thereto, and in addition, a bolt joint of different forms or sizes is fixedly installed at the front end of each dynamic transmission member.

[0007] Through the above-mentioned structural form, the dynamic transmission part installed thereon can be converted by rotating the adapter plate, so that bolt joints of different models or forms can be connected to the output shaft of the external driving device. In this process, the clutch between the transmission plug shaft and the transmission sleeve can be used to realize the on and off of the transmission action between the dynamic transmission part and the static transmission part, which is convenient for the conversion of the bolt joint. When converting the bolt joint, the adapter plate is pulled forward to separate the transmission plug shaft from the transmission sleeve. At this time, the adapter plate can be freely rotated to allow any bolt joint to be connected to the working position. Subsequently, the dynamic transmission part and the static transmission part are connected by the engagement of the transmission plug shaft and the transmission sleeve. At this time, the external device can directly drive the current bolt joint to rotate and complete the automatic tightening of the bolt. This conversion method can quickly realize the conversion of the bolt joint, is simple to operate, and can improve the efficiency and continuity of processing.

[0008] In one possible implementation, the fixed-angle telescopic rotating connection includes a connecting shell, which is fixedly connected to the connecting disk and has an inner slide cylinder and a sliding shaft installed therein, which is slidably arranged in the inner slide cylinder and is in close contact with the inner wall of the cylinder. In addition, the front end of the sliding shaft is fixedly connected to the center of the rear end surface of the adapter disk.

[0009] Through the above-mentioned structural form, the sliding shaft can rotate and slide in the inner sliding cylinder to provide the necessary structural basis for the rotation and forward and backward movement of the adapter plate.

[0010] In a possible implementation, the front end of the inner slide cylinder is provided with four fixed-angle grooves arranged in an equidistant circular array, the notches of the fixed-angle grooves are processed with guide grooves, and two symmetrically arranged fixed-angle protrusions are fixedly provided on the sliding shaft.

[0011] Through the above-mentioned structural form, the combined effect of the fixed-angle groove and the fixed-angle protrusion can make the adapter plate be fixed at a rotation angle of ninety degrees after rotation, which is convenient for automatic alignment of the transmission plug shaft and the transmission sleeve.

[0012] In a possible implementation, an anti - detachment end piece is fixedly arranged at the rear end of the sliding shaft, and a return spring sleeved outside the sliding shaft is arranged between the anti - detachment end piece and the inner sliding cylinder.

[0013] Through the above - mentioned structural form, after the conversion of the bolt joint is completed, the return spring applies a thrust force to make the sliding shaft slide backward, and the fixed - angle protrusion is clamped in the corresponding fixed - angle groove, so that the sliding shaft cannot rotate, playing a fixing role for the adapter plate.

[0014] In a possible implementation, the moving transmission part includes a moving outer cylinder and a moving rotating shaft rotatably arranged therein. The moving outer cylinder and the moving rotating shaft are connected by two moving bearings. Two symmetric connecting ears are fixedly arranged on the moving outer cylinder. Among them, the front end of the moving rotating shaft is threadedly connected to the bolt joint.

[0015] Through the above - mentioned structural form, the rotatable moving rotating shaft can play a transmission role and apply the torque transmitted by the static rotating shaft to the bolt joint.

[0016] In a possible implementation, the static transmission part includes a static outer cylinder and a static rotating shaft rotatably arranged therein. The static outer cylinder and the static rotating shaft are connected by two static bearings. Among them, the static rotating shaft is in transmission connection with the output shaft of an external driving device.

[0017] Through the above - mentioned structural form, the rotatable static rotating shaft can play a transmission role and transmit the output torque of the external driving device to the moving rotating shaft.

[0018] In a possible implementation, the bolt joint is divided into two structural forms, corresponding to an internal - hexagon bolt and an external - hexagon bolt respectively, and each structural form includes different sizes.

[0019] Through the above - mentioned structural form, bolt joints of different structural forms or models can be installed on the moving transmission part in a freely combined form to meet different working conditions, greatly improving the overall usability of the device.

[0020] In a possible implementation, the groove width of the fixed - angle groove is numerically equal to the cross - sectional width of the fixed - angle protrusion, and a chamfer is machined at the rear end of the fixed - angle protrusion.

[0021] Through the above - mentioned structural form, when the fixed - angle protrusion is inserted into the fixed - angle groove, it can be in close contact with it, making the sliding shaft unable to rotate at any angle, ensuring the fixing effect on the adapter plate.

[0022] In summary, the utility model has the following beneficial technical effects:

[0023] The dynamic transmission part installed on it can be converted by rotating the adapter plate, so that bolt joints of different models or forms can be connected to the output shaft of the external driving device. The transmission plug shaft and the transmission sleeve can be clutched to realize the on and off of the transmission action between the dynamic transmission part and the static transmission part. When any bolt joint is connected to the working position, the dynamic transmission part and the static transmission part can be connected by the engagement of the transmission plug shaft and the transmission sleeve. At this time, the external device can directly drive the current bolt joint to rotate to complete the automatic tightening of the bolt. This conversion method can quickly realize the conversion of the bolt joint, is simple to operate, and can improve the efficiency and continuity of processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a structural front view of the utility model;

[0026] Figure 2 This is a rear view of the structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the transmission structure of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the fixed-angle telescopic rotating connecting piece of the utility model.

[0029] In the figure: 1. connecting plate; 2. fixed-angle telescopic rotating connecting member; 21. connecting shell; 22. inner sliding cylinder; 221. fixed-angle groove; 222. guiding groove; 23. sliding shaft; 231. fixed-angle protrusion; 24. anti-drop end piece; 25. reset spring; 3. adapter plate; 4. dynamic transmission member; 41. dynamic outer cylinder; 42. dynamic bearing; 43. dynamic rotating shaft; 44. connecting ear; 5. static transmission member; 51. static outer cylinder; 52. static bearing; 53. static rotating shaft; 61. transmission sleeve; 62. transmission plug shaft; 7. bolt joint. DETAILED DESCRIPTION

[0030] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0031] like Figure 1 - Figure 3As shown in the figure, an automatic bolt tightening adapter provided in this embodiment includes a connection disk 1, which is installed on an external driving device, a fixed-angle telescopic rotating connection member 2, which is fixedly arranged on one side of the connection disk 1, a transfer disk 3, which is installed at the front end of the fixed-angle telescopic rotating connection member 2, and four driving transmission members 4 arranged in an equidistant circumferential array are installed on the front end face thereof. A static transmission member 5 is fixedly connected inside the connection disk 1. Among them, a transmission insertion shaft 62 is fixedly arranged at the rear end of the driving transmission member 4, and a transmission sleeve 61 is fixedly arranged at the front end of the static transmission member 5. The transmission insertion shaft 62 can be inserted into the transmission sleeve 61 and tightly connected thereto. In addition, different forms or sizes of bolt joints 7 are fixedly installed at the front end of each driving transmission member 4. Through the above structural form, the driving transmission members 4 installed thereon can be converted by rotating the transfer disk 3, so that different models or forms of bolt joints 7 can be connected to the output shaft of the external driving device. This transfer method can quickly realize the conversion of the bolt joints 7, and the operation is simple, which can improve the processing efficiency and continuity.

[0032] Specifically, it can achieve the on-off of the transmission function between the driving transmission member 4 and the static transmission member 5 through the clutch between the transmission insertion shaft 62 and the transmission sleeve 61, which is convenient for the conversion of the bolt joint 7. When converting the bolt joint 7, pull the transfer disk 3 forward to separate the transmission insertion shaft 62 from the transmission sleeve 61. At this time, the transfer disk 3 can rotate freely to allow any bolt joint 7 to be connected to the working position. Subsequently, the driving transmission member 4 and the static transmission member 5 are connected by the engagement of the transmission insertion shaft 62 and the transmission sleeve 61. At this time, the external device can directly drive the current bolt joint 7 to rotate to complete the automatic tightening of the bolt.

[0033] As Figure 4 shown in the figure, the fixed-angle telescopic rotating connection member 2 includes a connection housing 21, which is fixedly connected to the connection disk 1 and an inner sliding cylinder 22 is installed therein. A sliding shaft 23 is slidably arranged in the inner sliding cylinder 22 and is in close contact with the inner wall of the cylinder. In addition, the front end of the sliding shaft 23 is fixedly connected to the center of the rear end face of the transfer disk 3. Through the above structural form, it can provide a necessary structural basis for the rotation and forward and backward movement of the transfer disk 3 in the form of the sliding shaft 23 rotating and sliding in the inner sliding cylinder 22.

[0034] Particularly, four fixed-angle grooves 221 arranged in an equidistant circumferential array are opened at the front end of the inner sliding cylinder 22, and a guiding groove 222 is machined at the notch of the fixed-angle groove 221. Two symmetrically arranged fixed-angle protrusions 231 are fixedly arranged on the sliding shaft 23. Through the above structural form, the combination of the fixed-angle groove 221 and the fixed-angle protrusion 231 can make the transfer disk 3 be fixed at a rotation angle with a modulus of 90 degrees after rotation, which is convenient for the automatic alignment of the transmission insertion shaft 62 and the transmission sleeve 61.

[0035] In addition, an anti - detachment end piece 24 is fixedly arranged at the rear end of the sliding shaft 23. A return spring 25 sleeved outside the sliding shaft 23 is arranged between the anti - detachment end piece 24 and the inner sliding cylinder 22. Through the above - mentioned structural form, after the conversion of the bolt joint 7 is completed, the return spring 25 applies a thrust force to make the sliding shaft 23 slide backward, and the fixed - angle protrusion 231 is clamped in the corresponding fixed - angle groove 221, so that the sliding shaft 23 cannot rotate, playing a role in fixing the adapter plate 3. And the groove width of the fixed - angle groove 221 is numerically equal to the cross - sectional width of the fixed - angle protrusion 231, and a chamfer is processed at the rear end of the fixed - angle protrusion 231.

[0036] As Figure 3 shown, the moving transmission part 4 includes a moving outer cylinder 41 and a moving rotating shaft 43 rotatably arranged therein. The moving outer cylinder 41 and the moving rotating shaft 43 are connected through two moving bearings 42. Two symmetric connecting ears 44 are fixedly arranged on the moving outer cylinder 41. Among them, the front end of the moving rotating shaft 43 is threadedly connected to the bolt joint 7. Through the above - mentioned structural form, the freely rotatable moving rotating shaft 43 can play a transmission role, applying the torque transmitted by the static rotating shaft 53 to the bolt joint 7.

[0037] As Figure 3 shown, the static transmission part 5 includes a static outer cylinder 51 and a static rotating shaft 53 rotatably arranged therein. The static outer cylinder 51 and the static rotating shaft 53 are connected through two static bearings 52. Among them, the static rotating shaft 53 is in transmission connection with the output shaft of an external driving device. Through the above - mentioned structural form, the freely rotatable static rotating shaft 53 can play a transmission role, transmitting the output torque of the external driving device to the moving rotating shaft 43.

[0038] As Figure 1 shown, the bolt joint 7 has two structural forms, corresponding to an inner - hexagon bolt and an outer - hexagon bolt respectively, and each structural form includes different sizes. Through the above - mentioned structural form, bolt joints 7 with different structural forms or models can be installed on the moving transmission part 4 in a freely combined form to meet different working conditions requirements, greatly improving the overall usability of the device.

[0039] The working principle and process of the present utility model:

[0040] The moving transmission part 4 installed thereon can be converted by rotating the adapter plate 3, so that bolt joints 7 of different models or forms can be connected to the output shaft of the external driving device. This kind of adapter method can quickly realize the conversion of the bolt joint 7, and the operation is simple, which can improve the processing efficiency and continuity.

[0041] Specifically, it can achieve the on-off of the transmission function between the moving transmission part 4 and the static transmission part 5 through the engagement and disengagement between the transmission shaft 62 and the transmission sleeve 61, which is convenient for the conversion of the bolt joint 7. When converting the bolt joint 7, pull the adapter plate 3 forward to separate the transmission shaft 62 from the transmission sleeve 61. At this time, the adapter plate 3 can rotate freely to allow any bolt joint 7 to be inserted into the working position. Subsequently, the moving transmission part 4 and the static transmission part 5 are connected by the engagement of the transmission shaft 62 and the transmission sleeve 61. At this time, the external device can directly drive the current bolt joint 7 to rotate to complete the automatic tightening of the bolt.

[0042] In the above process, through the combined action of the fixed angle groove 221 and the fixed angle protrusion 231, the adapter plate 3 can be fixed at an angle of 90 degrees as a modulus after rotation, which is convenient for the automatic alignment of the transmission shaft 62 and the transmission sleeve 61; after the conversion of the bolt joint 7 is completed, the return spring 25 applies a thrust to make the sliding shaft 23 slide backward, and the fixed angle protrusion 231 is clamped in the corresponding fixed angle groove 221, so that the sliding shaft 23 cannot rotate, playing a role in fixing the adapter plate 3.

[0043] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A bolt automatic tightening adapter, characterized in that: include: A connecting plate (1) mounted on an external driving device; A fixed-angle telescopic rotating connection member (2) which is fixedly arranged on one side of the connection plate (1); An adapter plate (3) is mounted on the front end of the fixed-angle telescopic rotating connecting member (2), and four dynamic transmission members (4) arranged in an equidistant circular array are mounted on the front end surface of the adapter plate; A static transmission member (5) fixedly connected in the connection plate (1); The rear end of the dynamic transmission member (4) is fixedly provided with a transmission plug shaft (62), the front end of the static transmission member (5) is fixedly provided with a transmission sleeve (61), the transmission plug shaft (62) can be inserted into the transmission sleeve (61) and tightly connected thereto, and in addition, a bolt joint (7) of different forms or sizes is fixedly installed at the front end of each dynamic transmission member (4).

2. The automatic bolt tightening adapter according to claim 1, characterized in that: The fixed-angle telescopic rotating connection member (2) comprises: A connecting shell (21) which is fixedly connected to the connecting plate (1) and in which an inner slide cylinder (22) is installed; The sliding shaft (23) is slidably arranged in the inner sliding cylinder (22) and is in close contact with the inner wall of the cylinder. In addition, the front end of the sliding shaft (23) is fixedly connected to the center of the rear end surface of the adapter plate (3).

3. The automatic bolt tightening adapter according to claim 2, characterized in that: The front end of the inner slide cylinder (22) is provided with four fixed-angle grooves (221) arranged in an equidistant circular array, the notches of the fixed-angle grooves (221) are processed with guide grooves (222), and the sliding shaft (23) is fixedly provided with two symmetrically arranged fixed-angle protrusions (231).

4. The automatic bolt tightening adapter according to claim 2, characterized in that: An anti-slip end piece (24) is fixedly arranged at the rear end of the sliding shaft (23), and a return spring (25) sleeved outside the sliding shaft (23) is arranged between the anti-slip end piece (24) and the inner sliding cylinder (22).

5. The automatic bolt tightening adapter according to claim 1, characterized in that: The dynamic transmission member (4) comprises a dynamic outer cylinder (41) and a dynamic rotating shaft (43) rotatably arranged therein, the dynamic outer cylinder (41) and the dynamic rotating shaft (43) are connected via two dynamic bearings (42), and two symmetrical connecting ears (44) are fixedly arranged on the dynamic outer cylinder (41); The front end of the movable shaft (43) is threadedly connected to the bolt joint (7).

6. The automatic bolt tightening adapter according to claim 1, characterized in that: The static transmission member (5) comprises a static outer cylinder (51) and a static rotating shaft (53) rotatably arranged therein, and the static outer cylinder (51) and the static rotating shaft (53) are connected via two static bearings (52); The stationary shaft (53) is drivingly connected to an output shaft of an external driving device.

7. The automatic bolt tightening adapter according to claim 1, characterized in that: The bolt joint (7) is divided into two structural forms, corresponding to internal hexagonal bolts and external hexagonal bolts respectively, and each structural form includes different sizes.

8. The automatic bolt tightening adapter according to claim 3, characterized in that: The width of the fixed-angle groove (221) is numerically equal to the cross-sectional width of the fixed-angle protrusion (231), and a chamfer is processed at the rear end of the fixed-angle protrusion (231).

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