CN220560865U - Sleeve placement device and automatic installation equipment - Google Patents

Abstract

The present utility model relates to a sleeve placement device adapted to cooperate with an automatic tightening system and an automated installation apparatus comprising the sleeve placement device. The sleeve placing device comprises a frame (1) provided with a plurality of placing holes (11) for placing the sleeves (2) therein, an ejection assembly (3) arranged at the bottom of the frame and an unlocking assembly (4) arranged at the top of the frame. The ejection assembly is configured to push the sleeve into mating abutment with the tightening shaft of the automatic tightening system in a state in which the tightening shaft is adjacent to the sleeve located in the placement hole. The unlocking assembly is configured to place the tightening shaft in an open state during the process of placing the sleeve in the placement hole by the tightening shaft and/or in a state in which the tightening shaft is close to the sleeve located in the placement hole. According to the sleeve placing device, the sleeve placing device can be matched with the tightening shaft of the automatic tightening system, so that quick switching among sleeves with different specifications is realized, and the assembly efficiency is improved.

Description

Sleeve placement device and automatic installation equipment

Technical Field

The utility model relates to the technical field of automatic installation equipment of engineering machinery, in particular to a sleeve placing device suitable for being matched with an automatic tightening system in the automatic installation process of the engineering machinery and automatic installation equipment comprising the sleeve placing device.

Background

Work machines such as excavators are typically assembled automatically by automated installation equipment. In the assembly work, bolts of different specifications are usually required to be screwed, and thus, the screwing system needs to employ sleeves of different specifications.

At present, when the sleeves of different specifications need to be switched, the assembly robot pauses working, and an operator manually replaces the sleeve on the tightening shaft and then restarts the assembly robot for production. This manner of manually changing the sleeve by the operator is difficult to meet the needs of efficient production of automated assembly lines.

Disclosure of Invention

The present utility model is directed to solving at least one of the problems discussed above and/or other problems in the prior art.

To achieve the above object, according to one aspect of the present utility model, there is provided a sleeve placement device adapted to cooperate with an automatic tightening system, the sleeve placement device including a frame, an ejector assembly provided at a bottom of the frame, and an unlocking assembly provided at a top of the frame. The frame is provided with a plurality of placement holes for placing the sleeve therein. The ejection assembly is configured to urge the sleeve into mating abutment with the tightening shaft of the automatic tightening system in a state in which the tightening shaft is adjacent to the sleeve located within the placement hole. The unlocking assembly is configured to put the tightening shaft in an open state during the process of putting the sleeve into the placement hole by the tightening shaft and/or in a state where the tightening shaft is close to the sleeve located in the placement hole.

According to an embodiment of the present utility model, the frame includes a first top plate, a first bottom plate, and a side plate disposed between the first top plate and the first bottom plate, and the placement hole is opened in the first top plate.

According to an embodiment of the present utility model, the ejector assembly includes a driving cylinder fixed to the first base plate and a movable portion connected to a rod end of the driving cylinder, and the bottom of the sleeve can abut against the movable portion.

According to an embodiment of the present utility model, the movable portion includes a second top plate, a connecting rod, and a second bottom plate, the second top plate is connected to the cylinder rod end, the connecting rod is connected between the second top plate and the second bottom plate, and a cylinder hole through which the driving cylinder passes is formed in a central portion of the second bottom plate.

According to an embodiment of the present utility model, the movable portion further includes a plurality of sleeve supporting portions fixed to the second base plate, each of the sleeve supporting portions being disposed at a position corresponding to one of the placement holes.

According to an embodiment of the utility model, the unlocking assembly comprises a driving motor fixed on the first top plate and an unlocking plate connected with an output shaft of the driving motor, the unlocking plate is arranged above the first top plate and provided with a plurality of through holes corresponding to the placing holes, and the diameter of each through hole is larger than the maximum diameter of the sleeve and smaller than the diameter of the tail end of the outer sleeve of the tightening shaft.

According to an embodiment of the present utility model, the unlocking assembly includes an unlocking plate, a guide post connected to the unlocking plate, a first guide portion connected to the first top plate, and a second guide portion connected to the second bottom plate, wherein the first top plate is provided with a guide hole corresponding to the first guide portion, and the guide post passes through the guide hole, the first guide portion, and the second guide portion.

According to an embodiment of the utility model, the sleeve placement device further comprises a controller and a proximity sensor communicatively connected to the controller, the proximity sensor being configured to identify the in-place information of the sleeve and to communicate the in-place information to the controller.

According to an embodiment of the utility model, the number of the placement holes is four, and the four placement holes are configured to place at least two sleeves of different specifications.

According to another aspect of the present utility model there is provided an automated installation apparatus comprising an automated tightening system having a tightening shaft and a sleeve placement device as described above.

The sleeve placing device provided by the utility model allows the sleeves with different specifications to be placed in the frame, when the tightening shaft is aligned with the sleeve with one specification, the unlocking component enables the tightening shaft to be in an open state, the ejection component ejects the sleeve to be in fit connection with the tightening shaft, and then the unlocking component returns to enable the tightening shaft to be in a closed state so as to lock the sleeve. The sleeve placing device can be matched with a tightening shaft of an automatic tightening system, so that quick switching among sleeves of different specifications is realized, and the assembly efficiency is improved.

Drawings

The above and other features and advantages of the present utility model will become more readily appreciated from the following description with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of a sleeve placement device according to an embodiment of the present utility model.

Fig. 2 is an exploded view of the sleeve placement device according to this embodiment.

Fig. 3 is a top view of the sleeve placing device according to this embodiment.

Fig. 4 is a cross-sectional view of the sleeve placement device according to this embodiment taken along line A-A in fig. 3.

Fig. 5 is a sectional view of the sleeve placing device according to this embodiment taken along line B-B in fig. 3.

Fig. 6 is an exploded view of an ejector assembly of the sleeve placement device according to this embodiment.

The figures are merely schematic and are not necessarily drawn to scale. The relative positional relationships of the various components shown in the drawings are also illustrative and are not intended to limit the scope of the utility model. Furthermore, only those parts necessary for elucidating the utility model are shown in the drawings, other parts being omitted or merely mentioned briefly.

Reference numerals illustrate:

1. a frame; 11. placing the hole; 12. a guide hole; 13. a first top plate; 131. a sleeve guide; 14. a first base plate; 15. a side plate; 16. a motor hole; 2. a sleeve; 3. an ejection assembly; 31. a driving cylinder; 311. a cylinder; 3111. a first air inlet; 3112. a second air inlet; 312. a cylinder rod; 32. a movable part; 321. a second top plate; 322. a connecting rod; 323. a second base plate; 3231. a cylinder bore; 324. a sleeve support part; 4. unlocking the assembly; 41. a driving motor; 42. unlocking plate; 421. a through hole; 43. a guide post; 44. a first guide part; 45. a second guide part; 5. a proximity sensor.

Detailed Description

Exemplary embodiments according to the present utility model will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model to those skilled in the art. It will be apparent, however, to one skilled in the art that the present utility model may be practiced without some of these specific details. Furthermore, it should be understood that the utility model is not limited to specific described embodiments. Rather, the utility model can be considered to be implemented with any combination of the following features and elements, whether or not they relate to different embodiments. Thus, the following features, embodiments, and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly set out in a claim.

Terms such as "first," "second," and the like are used hereinafter to describe elements of the present application, and are merely used for distinguishing between the elements and not for limiting the nature, order, or number of such elements. The terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components other than the listed elements/components.

The sleeve placement device according to the utility model is adapted to cooperate with an automatic tightening system for tightening bolts. The automated tightening system may include an assembly robot, at least one tightening shaft, and at least one sleeve placement device. The at least one tightening shaft may be disposed at a front end of a robot arm of the assembly robot, and the at least one sleeve placement device may be disposed at one side of the assembly robot. The sleeve can be taken and put from one sleeve placing device through one tightening shaft, or can be taken and put from a plurality of sleeve placing devices through a plurality of tightening shafts at the same time.

The construction and operation of the tightening shaft is known to those skilled in the art. For example, the end of the tightening shaft may be provided with an inner sleeve and an outer sleeve, the inner sleeve is shaped to fit with the end of the sleeve, the outer sleeve is sleeved on the outer periphery of the inner sleeve, and a groove with a conical or triangular cross section is formed in the inner side wall of the outer sleeve along the circumferential direction of the outer sleeve, so that the groove is provided with a large end and a small end for arranging steel balls, and a hole site for enabling part of the steel balls to extend into the inner wall of the inner sleeve is formed in the inner sleeve. The outer sleeve can axially slide along the inner sleeve and is elastically connected to the inner sleeve or other parts of the tightening shaft through a spring. When the sleeve needs to be clamped, the spring is in a slight compression state, so that the steel balls are contained at or near the small end of the groove, and part of the steel balls extend into the inner sleeve to clamp the sleeve. When the clamping of the sleeve is required to be released, the outer sleeve is only required to be stirred, so that the steel balls are contained in the big head end or move towards the big head end to retract the inner sleeve, and the sleeve is released.

A sleeve placing device according to an embodiment of the present utility model will be described below with reference to fig. 1 to 6. As shown in fig. 1 and 2, the sleeve placement device in the present embodiment includes a frame 1, an ejector assembly 3 disposed at the bottom of the frame 1, and an unlocking assembly 4 disposed at the top of the frame 1.

The frame 1 includes a first top plate 13, a first bottom plate 14 disposed opposite to the first top plate 13, and a side plate 15 disposed between the first top plate 13 and the first bottom plate 14. The first top plate 13, the side plates 15 and the first bottom plate 14 enclose a cavity structure. The first top plate 13 is provided with a placement hole 11 for placing the sleeve 2 in the non-working state in the cavity structure after passing through the first top plate 13.

In the present embodiment, as shown in fig. 1 to 3, the first top plate 13 and the first bottom plate 14 are each substantially rectangular plates, and the cavity structure is substantially rectangular parallelepiped. The ejector assembly 3 is disposed at a substantially central position of the first bottom plate 14, and the unlocking assembly 4 is disposed at a substantially central position of the first top plate 13. In this embodiment, four placement holes 11 are arranged in a square shape and can place two kinds of sleeves 2 with different specifications (e.g. M12 and M16), wherein two placement holes 11 in the same row can place two sleeves 2 with the same specification. By respectively clamping the two sleeves 2 in the same row by the two tightening shafts, two bolts with the same specification can be tightened at the same time, thereby further improving the assembly efficiency. The number of the placement holes 11 is not limited to four, but may be two, three, five, or more. Preferably, the distances between every two placement holes 11 are equal, and two or more tightening shafts are simultaneously provided on the mechanical arm of the assembly robot.

In this embodiment, as shown more clearly in fig. 4 to 6, the ejection assembly 3 is disposed within the cavity structure and connected to the first bottom plate 14 such that the first bottom plate 14 supports the ejection assembly 3 when the ejection assembly 3 moves upward to push out the sleeve 2 toward the tightening shaft. The unlocking assembly 4 is connected to the first top plate 13, located outside the cavity structure, for pushing the outer sleeve of the tightening shaft upwards to unlock the connection between the sleeve 2 and the tightening shaft.

More specifically, the ejector assembly 3 in the present embodiment includes a driving cylinder 31 and a movable portion 32. The driving cylinder 31 includes a cylinder body 311 and a cylinder rod 312 partially disposed in the cylinder body 311, and a piston is disposed at one end of the cylinder rod 312 disposed in the cylinder body 311. The piston divides the inner cavity of the cylinder 311 into a rod-shaped cavity and a rodless cavity, a first air inlet 3111 is provided at a side wall of the cylinder 311 corresponding to the rod-shaped cavity, and a second air inlet 3112 is provided at a side wall of the cylinder 311 corresponding to the rodless cavity. The cylinder rod 312 is retracted into the cylinder 311 when the first intake port 3111 is intake, and the cylinder rod 312 is extended outward when the second intake port 3112 is intake.

The movable portion 32 includes a second top plate 321, a connection bar 322, and a second bottom plate 323. A hole position adapted to the cylinder rod 312 of the driving cylinder 31 is formed in the center of the second top plate 321, and the cylinder rod 312 passes through the hole position and is fixed to the second top plate 321. The number of connecting rods 322 is four but not limited to only four, but may be two, three, five or more. The four connecting rods 322 may be equally spaced around the outer circumference of the driving cylinder 31, so that the second top plate 321 and the second bottom plate 323 may be maintained to be always disposed in a horizontal direction when the cylinder rod 312 of the driving cylinder 31 is extended or retracted, preventing the sleeve 2 disposed on the second bottom plate 323 from being inclined. The upper ends of the connection bars 322 are connected to the peripheral portion of the second top plate 321, and the lower ends of the connection bars 322 are connected to the second bottom plate 323. The second bottom plate 323 has a cylinder hole 3231 formed in the center thereof through which the cylinder body 311 of the cylinder passes, and the cylinder body 311 is screwed onto the first bottom plate 14 after passing through the cylinder hole 3231. The cylinder rod 312 of the driving cylinder 31 is extended or retracted to drive the second top plate 321, the connecting rod 322 and the second bottom plate 323 to ascend or descend, so that the sleeve 2 can be driven to approach or depart from the tightening shaft near the placement hole 11 to be connected with the tightening shaft in an adapting manner.

In order that the sleeve 2 can be smoothly taken out or put back, as shown in fig. 2 and 4, the movable portion 32 further includes a sleeve support portion 324 provided at a peripheral portion of the second bottom plate 323 and corresponding to a position of the placement hole 11. Further, a sleeve guide 131 is provided below the first top plate 13 at a position corresponding to the placement hole 11. The central portion of the sleeve support 324 is upwardly protruded so that the bottom end of the sleeve 2 can be fitted around the circumference of the protrusion. The sleeve guide 131 is of a cylindrical structure and extends from the periphery of the placement hole 11 toward the sleeve support 324 to guide insertion of the sleeve 2, thereby more accurately fitting the bottom end of the sleeve 2 over the sleeve support 324.

In the above embodiment, the sleeve placement device further includes a controller and a proximity sensor 5 (see fig. 4) communicatively connected to the controller. For example, the sleeve guide 131 may be provided with a mounting hole extending in the radial direction of the sleeve 2 for mounting the proximity sensor. A proximity sensor is provided for each sleeve 2, and detects whether there is a sleeve 2 in the sleeve guide 131 to acquire in-place information of the sleeve 2, and transmits the in-place information of the sleeve 2 to the controller. The controller controls the assembly robot or the like based on the detection result of the proximity sensor 5 to perform the next operation.

As shown in fig. 4 and 5, the unlocking assembly 4 in the present embodiment includes a driving motor 41 and an unlocking plate 42. A motor hole 16 (see fig. 2) through which an output shaft of the driving motor 41 passes is opened at a central portion of the first top plate 13. The unlocking plate 42 has a connecting hole formed at the center thereof, and a screw thread is provided in the connecting hole or a bolt is provided below or above the connecting hole. The driving motor 41 is fixed to the central portion of the first top plate 13 by a bolt, and an output shaft having external threads passes through the motor hole 16 and is then screw-coupled with the unlocking plate 42, thereby driving the unlocking plate 42 to move upward or downward when the driving motor 41 is operated. The unlocking plate 42 is further provided with a through hole 421 corresponding to the placement hole 11, and the diameter of the through hole 421 is larger than the maximum diameter of the sleeve 2 and smaller than the diameter of the tail end of the outer sleeve of the tightening shaft, so that when the unlocking plate 42 performs unlocking action on the tightening shaft, the unlocking plate 42 can jack up the outer sleeve of the tightening shaft upwards to unlock, and the sleeve 2 cannot be interfered with.

In order to ensure that the unlocking plate 42 does not tilt during movement in the up-down direction, the unlocking assembly 4 further includes a guide post 43, a first guide 44 and a second guide 45, as shown in fig. 4 and 5. The first guide portion 44 and the second guide portion 45 are both cylindrical structures. The first top plate 13 is provided with a guide hole 12 (see fig. 2) through which the guide post 43 passes. The first guide portion 44 is provided corresponding to the guide hole 12 and is fixed to the first top plate 13 by a screw. The second guide 45 is provided corresponding to the guide hole 12 and fixed to the second bottom plate 323 by a screw. The upper end of the guide post 43 is connected to the unlocking plate 42, and the guide post 43 sequentially passes through the guide hole 12 and the first guide portion 44 and then is disposed in the second guide portion 45.

In the above embodiment, the unlocking plate 42 has a square shape, the number of the guide posts 43 is preferably four, and four guide posts 43 are provided at four corners of the unlocking plate 42. When the unlocking plate 42 moves in the up-down direction, the guide posts 43 slide in the first guide portions 44 and the second guide portions 45, so that four corners of the unlocking plate 42 are simultaneously guided, and one side of the unlocking plate 42 is prevented from being inclined and the tightening shaft cannot be effectively unlocked.

INDUSTRIAL APPLICABILITY

The sleeve placing device is particularly suitable for being matched with an automatic tightening system with a tightening shaft to realize quick replacement among sleeves with different specifications when an automatic installation device is used for installing engineering machinery such as an excavator, so that bolts with different specifications are automatically tightened. However, the present utility model is not limited thereto, and the proposed socket placement device can be widely used for automatic tightening systems in various fields of automobiles, aerospace, and the like, particularly automatic tightening systems having two or more tightening shafts.

Taking the embodiment shown in fig. 1 to 6 as an example, according to the sleeve placing device of the present utility model, when the sleeve 2 in the placing hole 11 needs to be taken out, the mechanical arm of the assembling robot drives the tightening shaft to move toward the placing hole 11, so that the end of the tightening shaft is close to the sleeve 2 and aligned with the sleeve 2. The output shaft of the driving motor 41 drives the unlocking plate 42 to move upward. Since the diameter of the through hole 421 is smaller than the diameter of the end of the outer sleeve of the tightening shaft, the unlocking plate 42 drives the outer sleeve of the tightening shaft to slide along the inner sleeve, thereby putting the tightening shaft in an open state. Then, the cylinder rod 312 of the driving cylinder 31 is extended to drive the second top plate 321, the connecting rod 322 and the second bottom plate 323 to move upward, thereby connecting the sleeve 2 supported on the sleeve support 324 with the tightening shaft. Subsequently, the output shaft of the driving motor 41 and the unlocking plate 42 return to the initial position, and the outer sleeve of the tightening shaft returns due to the elastic potential energy of the spring, thereby bringing the tightening shaft into a closed state to lock the sleeve 2. Finally, the cylinder rod 312 of the driving cylinder 31 is retracted, and the second top plate 321, the connecting rod 322 and the second bottom plate 323 are driven to return to the initial positions, so that the taking-out action of the sleeve 2 is completed.

During the placement of the sleeve 2, the tightening shaft is pressed down with the sleeve 2 into the cavity of the frame 1 through the placement hole 11. When the bottom end of the sleeve 2 is sleeved on the sleeve supporting portion 324, the output shaft of the driving motor 41 drives the unlocking plate 42 to unlock the tightening shaft. When the unlocked tightening shaft moves upward, the sleeve 2 remains in the frame 1, and the output shaft of the drive motor 41 and the unlocking plate 42 also return to the initial positions, completing the placement operation of the sleeve 2. During the placement of the sleeve 2, the ejector assembly 3 is not in operation.

The action of getting of putting of sleeve 2 is all controlled through the detection result that the controller combines proximity sensor 5 for sleeve 2 remodelling is quick accurate, has solved the problem of manual change sleeve 2 inefficiency among the prior art.

The sleeve placing device of the utility model allows a plurality of sleeves 2 with different specifications to be placed in the frame 1, when the tightening shafts are aligned with the sleeves 2 with one specification, the unlocking component 4 enables the tightening shafts to be in an open state, the ejection component 3 ejects the sleeves 2 to be in fit connection with the tightening shafts, and then the unlocking component 4 returns to enable the tightening shafts to be in a closed state so as to lock the sleeves 2. The sleeve placing device can be matched with a tightening shaft of an automatic tightening system, so that quick switching among sleeves of different specifications is realized, and the assembly efficiency is improved.

In the description of the present specification, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral connection. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the present specification, the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or unit referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore, should not be construed as limiting the embodiments of the present utility model.

The above is only a preferred embodiment of the present utility model and is not intended to limit the embodiment of the present utility model, and various modifications and variations can be made to the embodiment of the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model should be included in the protection scope of the embodiments of the present utility model.

Claims (10)

1. A sleeve placement device adapted to cooperate with an automated tightening system, the sleeve placement device comprising:

a frame (1), wherein the frame (1) is provided with a plurality of placing holes (11) for placing the sleeve (2);

an ejection assembly (3) disposed at the bottom of the frame (1), the ejection assembly (3) being configured to push the sleeve (2) into fitting abutment with a tightening shaft of the automatic tightening system in a state in which the tightening shaft is close to the sleeve (2) located in the placement hole (11); and

an unlocking component (4) is arranged at the top of the frame (1), and the unlocking component (4) is configured to enable the tightening shaft to be in an open state in the process that the tightening shaft places the sleeve (2) into the placing hole (11) and/or in the state that the tightening shaft is close to the sleeve (2) positioned in the placing hole (11).

2. Sleeve placing device according to claim 1, characterized in that the frame (1) comprises a first top plate (13), a first bottom plate (14) and side plates (15) arranged between the first top plate (13) and the first bottom plate (14), the placing holes (11) being open in the first top plate (13).

3. Sleeve placing device according to claim 2, characterized in that the ejector assembly (3) comprises a driving cylinder (31) fixed to the first base plate (14) and a movable part (32) connected to the cylinder rod (312) end of the driving cylinder (31), the bottom of the sleeve (2) being able to abut against the movable part (32).

4. A socket placement device according to claim 3, wherein the movable part (32) comprises a second top plate (321), a connecting rod (322) and a second bottom plate (323), the second top plate (321) is connected to the cylinder rod (312) end, the connecting rod (322) is connected between the second top plate (321) and the second bottom plate (323), and a cylinder hole (3231) for the driving cylinder (31) to pass through is formed in the central part of the second bottom plate (323).

5. The sleeve placing device according to claim 4, wherein the movable portion (32) further includes a plurality of sleeve supporting portions (324) fixed to the second bottom plate (323), each of the sleeve supporting portions (324) being provided at a position corresponding to one of the placing holes (11).

6. Sleeve placing device according to any one of claims 2 to 5, characterized in that the unlocking assembly (4) comprises a driving motor (41) fixed to the first top plate (13) and an unlocking plate (42) connected to an output shaft of the driving motor (41), the unlocking plate (42) being arranged above the first top plate (13) and provided with a plurality of through holes (421) corresponding to the placing holes (11), the diameter of the through holes (421) being larger than the maximum diameter of the sleeve (2) and smaller than the end diameter of the outer sleeve of the tightening shaft.

7. The sleeve placement device according to claim 4, wherein the unlocking assembly (4) comprises an unlocking plate (42), a guide post (43) connected to the unlocking plate (42), a first guide portion (44) connected to the first top plate (13) and a second guide portion (45) connected to the second bottom plate (323), wherein the first top plate (13) is provided with a guide hole (12) corresponding to the first guide portion (44), and the guide post (43) passes through the guide hole (12), the first guide portion (44) and the second guide portion (45).

8. The sleeve placement device of any one of claims 1-5, further comprising a controller and a proximity sensor (5) communicatively connected to the controller, the proximity sensor (5) configured to identify in-place information of the sleeve (2) and communicate the in-place information to the controller.

9. Sleeve placement device according to any one of claims 1 to 5, characterized in that the number of placement holes (11) is four, four placement holes (11) being configured to place at least two different gauges of sleeves (2).

10. An automated installation apparatus comprising an automated tightening system having a tightening shaft and a sleeve placement device according to any one of claims 1 to 9.