CN220112707U - A tight nut installation device of combining for in narrow and small space - Google Patents

Abstract

The utility model relates to the technical field of automatic assembly of mining products, in particular to a nut tightening installation device used in a narrow space, which comprises an operation piece and an adapter, wherein the adapter is connected with the operation piece; the fixed cylinder is rotatably arranged on the adapter seat and is used for picking up and tightening the nut, and the fixed cylinder is used for accommodating the flexible wire; the servo tightening machine is connected to the adapter and drives the fixed cylinder to rotate through the transmission component. The automatic feeding and fixing device has the advantages that the fixing barrel realizes automatic feeding and fixing of the tightening nuts, the rotation of the fixing barrel is realized through the conversion of the transmission assembly to the rotation of the servo tightening machine, the fixing barrel is convenient to avoid interference of other struts in a narrow space and move in the narrow space, an accommodating space is provided for the flexible wire during the assembly of the tightening nuts, and the influence of the assembly of the tightening nuts on the flexible wire is avoided, so that the assembly of the tightening nuts with the flexible wire in the narrow space is realized.

Description

A tight nut installation device of combining for in narrow and small space

Technical Field

The utility model relates to the technical field of automatic assembly of mining products, in particular to a nut tightening installation device used in a narrow space.

Background

The product for the coal mine has specificity, and in order to ensure that the protection grade and related parameters of the product meet the use requirements of the product for the coal mine, accessories such as an outlet nozzle, an aviation socket and the like which are installed on the intrinsic safety product under the coal mine are generally fixed in the shell by tightening nuts.

In the field of automatic assembly, a robot arm, an automatic tightening servo, a corresponding fixture and the like are commonly used for assembly, but the assembly equipment has certain requirements on assembly space, and automatic assembly of parts with smaller assembly space and more compact assembly is difficult to realize. Therefore, when the nut is fastened in the shell, the connecting wires are often arranged on the assembled parts due to the fact that the space in the shell is smaller, the connecting wires are flexible wires, and when the nut is fastened, the tightening device is easy to collide with the flexible wires, so that the influence on the flexible wires is caused, and automatic assembly is more difficult to realize.

Disclosure of Invention

The utility model aims to solve the technical problems that: automatic assembly of fittings with flexible wires and union nuts is difficult to achieve in small spaces.

To this end, the utility model provides a union nut mounting device for use in confined spaces.

The technical scheme adopted for solving the technical problems is as follows:

a union nut mounting device for a small space comprises,

an operation member, and

the adapter is connected with the control piece;

the fixed cylinder is rotatably arranged on the adapter seat and used for picking up and tightening the nut, and the fixed cylinder is used for accommodating the flexible wire;

the servo tightening machine is connected to the adapter and drives the fixed cylinder to rotate through the transmission component.

Through adopting above-mentioned technical scheme, stretch into narrow and small space with connecting seat, fixing device, start servo tightening machine control fixed barrel and close the nut rotation, servo tightening machine can set for and close the moment size of nut, realize and close the unification of nut tightening moment, servo tightening machine passes through drive assembly control fixed barrel and rotates, fixed barrel can be with closing nut material loading and fixed, avoid the interference of other pillars in the narrow and small space, the inside cavity setting of fixed barrel, guarantee that flexible wire can penetrate in the fixed barrel, can deviate from easily after the fastening is accomplished, thereby realize having flexible wire accessory's automatic assembly, realize having flexible wire's accessory and close the automatic assembly between the nut in narrow and small space.

Further, the fixed cylinder is detachably connected with the adapter.

Further, be provided with the fastening plate on the adapter, be provided with the through-hole on the fastening plate, the through-hole rotation is provided with the lantern ring, the fixed cylinder inserts and establishes in the lantern ring.

Further, the connecting ring is coaxially connected to the fixed cylinder, the outer side wall of the connecting ring is regular polygon, the inner side wall of the lantern ring is regular polygon, and the connecting ring is matched with the lantern ring.

Further, the fastening plate is provided with a notch, the notch is communicated with the through hole, and the fixing barrel can pass through the notch.

Further, the end face of the fixed cylinder is provided with a caulking groove matched with the tightening nut, the caulking groove and the tightening nut are coaxially arranged, a part of the tightening nut is embedded in the caulking groove, and the outer side wall of the tightening nut is attached to the side wall of the caulking groove.

Further, the outer side wall of the lantern ring is connected with a limiting ring, the side wall of the through hole is provided with a limiting groove, and the limiting ring is positioned in the limiting groove and is in sliding fit with the limiting groove along the circumferential direction of the through hole.

Further, the spacing ring is incomplete ring gear, drive assembly includes drive gear and drive gear, servo transmission shaft of screwing up the machine runs through the adapter seat and rotates with the fastening plate to be connected, drive gear coaxial coupling is on servo transmission shaft of screwing up the machine, drive gear rotates and sets up on the fastening plate, drive gear is located between drive gear and the spacing ring, drive gear, spacing ring's axial are parallel to each other, drive gear and drive gear, spacing ring all mesh.

Further, the transmission gears are provided with two groups, and the two groups of transmission gears are symmetrically arranged by taking a connecting line between the axis of the driving gear and the axis of the through hole as a symmetrical axis.

By adopting the technical scheme, the transmission gears are arranged on two sides of the connecting line between the axis of the driving gear and the axis of the through hole, so that the stability of transmission between the gears is improved.

Further, the manipulation member is a flexible robot.

By adopting the technical scheme, the flexible robot is a robot with flexibility and deformability. When the nut is installed in a narrow space, the conventional rigid robot is difficult to adapt to complex postures and narrow working environments. Therefore, the flexible robot can better adapt to the requirement of a narrow space, and accurate nut installation is completed.

The front end fastening device is designed, the connecting seat fixing device stretches into a narrow space, the servo tightening machine is started to control the tightening nut on the fixing cylinder to rotate, the rotation of the fixing cylinder is realized through the conversion of the transmission assembly to the rotation of the servo tightening machine, the fixing cylinder is convenient to avoid the interference of other struts in the narrow space and moves in the narrow space, and therefore the assembly of the tightening nut in the narrow space is realized; the nut fixing cylinder is designed and fastened, automatic feeding and fixing of the nut are achieved, assembly of the nut in a narrow space can be met, the fixing cylinder is hollow, an accommodating space is provided for a flexible wire when the nut is assembled, and influence of the nut assembling on the flexible wire is avoided. The utility model mainly solves the problems of automatic feeding, automatic fastening and automatic releasing of the mounted accessory with the flexible wire, and ensures that the moment of the mounted accessory is uniform, thereby realizing the automatic assembly between the accessory with the flexible wire and the tightening nut in a narrow space.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic view of the positional relationship between the fastening device and the adaptor according to the present utility model.

Fig. 3 is a schematic view of the structure of the transmission assembly in the present utility model.

Fig. 4 is an effect diagram of the completion of the assembly of the clinch nut.

In the figure: 1. an operation control; 2. an adapter; 3. a servo tightening machine; 4. a fastening device; 41. a fastening plate; 410. a through port; 411. a notch; 412. a mounting cavity; 413. a limit groove; 42. a fixed cylinder; 420. a connecting ring; 421. a caulking groove; 43. a collar; 430. a limiting ring; 5. a transmission assembly; 51. a drive gear; 52. a transmission gear; 6. tightening the nut; 7. a flexible wire; 8. a housing; 9. and (5) fittings.

Detailed Description

The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 and 2, a nut installing device for tight nut in narrow space includes an operation control 1, an adapter 2, a servo tightening machine 3, and a fastening device 4, wherein the operation control 1 is used for moving and controlling the positions of the connection seat 2 and the fixing device, in this embodiment, the operation control 1 is a flexible robot, and the flexible robot is a robot with flexibility and deformability. When the nut is installed in a narrow space, the traditional rigid robot is difficult to adapt to complex postures and narrow working environments, so that the flexible robot can better adapt to the requirement of the narrow space, and accurate nut installation is completed.

Referring to fig. 1 and 2, the adapter seat 2 is configured in an L shape, a horizontal portion of the adapter seat 2 is connected with a mechanical arm of the flexible robot, the servo tightening machine 3 and the fastening device 4 are disposed at two sides of a vertical portion of the adapter seat 2, the servo tightening machine 3 is disposed at one side close to the horizontal portion of the adapter seat 2, and a correct tightening torque is required for installing the tightening nut 6, and the servo tightening machine 3 can set the torque of the tightening nut 6 to achieve the unification of the tightening torque of the tightening nut 6 so as to ensure the connection stability.

Referring to fig. 2 and 3, the fastening device 4 includes a fastening plate 41, a collar 43, and a fixing cylinder 42. The fastening plate 41 is fixedly connected to the vertical part of the adapter seat 2 through bolts, an installation cavity 412 is formed in the fastening plate 41, a transmission shaft of the servo tightening machine 3 penetrates through the adapter seat 2 and extends into the installation cavity 412, and the transmission shaft of the servo tightening machine 3 is rotatably connected with the fastening plate 41; be provided with opening 410 and opening 411 on the fastening plate 41, opening 411 is located the one end that fastening plate 41 kept away from adapter 2, and opening 410 and opening 411 intercommunication are provided with spacing groove 413 on the lateral wall of opening 410, and spacing groove 413 annular setting, lantern ring 43 are located opening 410, coaxial coupling has spacing ring 430 on the lateral wall of lantern ring 43, and spacing ring 430 is located spacing groove 413 and with spacing groove 413 take the axle center of opening 410 as center sliding fit, and spacing ring 430 is incomplete ring gear.

Referring to fig. 2 and 3, a transmission assembly 5 is disposed in the mounting cavity 412, the transmission assembly 5 includes a driving gear 51 and a transmission gear 52, the driving gear 51 is coaxially connected to a transmission shaft of the servo tightening machine 3, the transmission gear 52 is provided with two groups, the two groups of transmission gears 52 are symmetrically disposed with a line between an axis of the driving gear 51 and an axis of the through hole 410 as a symmetry axis, in this embodiment, each group of transmission gears 52 is provided with two transmission gears 52, the two transmission gears 52 in each group are arranged along a line between the axis of the driving gear 51 and the axis of the through hole 410 and are meshed with each other, the transmission gears 52 are rotatably connected to a side wall of the mounting cavity 412, the transmission gears 52 are located between the driving gear 51 and the limiting ring 430, the transmission gears 52, the driving gears 51 and the axial directions of the limiting ring 430 are parallel to each other, the transmission gears 52 close to the driving gear 51 are meshed with the driving gear 51, and the transmission gears 52 close to the limiting ring 430 are meshed with the limiting ring 430.

Referring to fig. 2 and 3, the fixed cylinder 42 is hollow, one end of the fixed cylinder 42 has a larger diameter than the other end, and the diameter of the smaller end of the fixed cylinder 42 is adapted to the width of the opening 411; the opening of the fixed cylinder 42 is arranged towards one end with larger end surface area, the one end with larger end surface area of the fixed cylinder 42 is provided with a caulking groove 421 matched with the tightening nut 6, the caulking groove 421 is communicated with the inside of the fixed cylinder 42, the caulking groove 421 is coaxially arranged with the tightening nut 6, a part of the tightening nut 6 is embedded in the caulking groove 421, and the outer side wall of the tightening nut 6 is attached to the side wall of the caulking groove 421; the fixed cylinder 42 is coaxially connected with a connecting ring 420, the cross section of the connecting ring 420 is regular polygon, the inner ring of the lantern ring 43 is also regular polygon, and the inner ring of the lantern ring 43 is matched with the outer side wall of the connecting ring 420.

The smaller end of the end surface area of the fixed cylinder 42 can move into the through hole 410 through the opening 411, then the fixed cylinder 42 and the fastening plate 41 relatively move along the axial direction of the through hole 410, the connecting ring 420 and the lantern ring 43 are spliced together, the mechanical arm drives the fastening plate 41 to move towards the fastening nut 6 through the adapter seat 2, and the fastening nut 6 is embedded in the embedded groove 421 to pick up the fastening nut 6.

Further, the adaptor base 2 is connected with a camera or a laser scanner and other devices, the camera or the laser scanner can acquire information of surrounding environment in real time, and the position and the posture of the nut are determined through image processing and algorithm analysis, so that accurate positioning and positioning in a narrow space are facilitated, and the nut 6 is tightly fixed.

The implementation principle of the embodiment is as follows:

when the tightening nut 6 is installed, the adapter seat 2 is connected with the fastening device 4, then the fastening device 4 is moved to the position of an automatic feeding station of the tightening nut 6 through the control piece 1, the tightening nut 6 is placed into the through hole 410 and fixed, and the control piece 1 is controlled to place the tightening nut 6 in the shell 8 and fix the tightening nut 6;

the accessory 9 with the flexible lead 7 is grabbed by another flexible mechanical arm, the end face area of one end of the accessory 9 is small and is provided with external threads, the accessory 9 with the flexible lead 7 is inserted into the tightening nut 6 and the fixed cylinder 42 from the outside of the shell 8, one end of the end face of the accessory 9 is small and stretches into the shell 8 to be in threaded fit with the tightening nut 6, then the servo tightening machine 3 is started, and the servo tightening machine 3 drives the lantern ring 43 to rotate through the transmission among the driving gear 51, the transmission gear 52 and the limiting ring 430 to fasten the tightening nut 6. And the other mechanical arm gradually moves towards the direction of the shell 8 when the nut 6 is tightly fastened, and in the process of tightly fastening the nut 6, the mounted accessory 9 is gradually attached to the outside of the shell 8, the servo tightening machine 3 stops after reaching a set torque value, at the moment, one end of the accessory 9 with a larger end face is positioned outside the shell 8, and the flexible lead 7 passes through the tightly fastened nut 6 and is positioned in the shell 8, as shown in fig. 4.

The flexible mechanical arm outside the shell 8 loosens the mounted accessory 9, the control piece 1 connected with the adapter seat 2 moves to separate the lantern ring 43 from the tightening nut 6, and the flexible wire 7 is separated from the fixed cylinder 42 and is kept in a state of penetrating into the tightening nut 6; the control part 1 connected with the adapter seat 2 moves to the position of the automatic feeding station of the tightening nut 6 again.

Through the above description, the front end fastening device 4 is designed in the scheme, so that the servo tightening machine 3 can be applied to a narrow space; the fixed cylinder 42 which is convenient for picking up and tightening the nut 6 and accommodating the flexible wire 7 is designed, automatic feeding and fixing of the tightening nut 6 are realized, the assembly of the tightening nut 6 in a narrow space can be satisfied, an accommodating space is provided for the flexible wire during the assembly of the tightening nut, and the influence of the assembly of the tightening nut on the flexible wire is avoided. The utility model mainly solves the problem of automatic assembly between the fitting 9 with the flexible wire 7 and the tightening nut 6.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined as the scope of the claims.

Claims (10)

1. A device for installing a tightening nut in a narrow space is characterized by comprising,

an operation piece (1), and

the adapter (2) is connected with the control piece (1);

the fixing cylinder (42) is rotatably arranged on the adapter seat (2), the fixing cylinder (42) is used for picking up and tightening the nut (6), and the fixing cylinder (42) is used for accommodating the flexible lead (7);

the servo tightening machine (3), servo tightening machine (3) are connected on adapter (2), servo tightening machine (3) are through transmission subassembly (5) drive fixed section of thick bamboo (42) rotation.

2. A union nut mounting device for use in confined spaces as claimed in claim 1 wherein said fixed barrel (42) is detachably connected to the adaptor (2).

3. The nut tightening installation device for use in a small space according to claim 2, wherein a fastening plate (41) is provided on the adaptor (2), a through hole (410) is provided on the fastening plate (41), a collar (43) is rotatably provided in the through hole (410), and the fixing cylinder (42) is inserted into the collar (43).

4. A nut tightening installation device for use in a small space according to claim 3, wherein the fixing cylinder (42) is coaxially connected with a connecting ring (420), an outer side wall of the connecting ring (420) is a regular polygon, an inner side wall of the collar (43) is a regular polygon, and the connecting ring (420) is adapted to the collar (43).

5. The nut installing device for tightening nuts in a small space as claimed in claim 4, wherein said tightening plate (41) is provided with a notch (411), said notch (411) is communicated with said through hole (410), and said fixing cylinder (42) can pass through said notch (411).

6. The tight nut installation device of combining in a narrow space according to claim 1, wherein a caulking groove (421) adapted to the tight nut (6) is arranged on the end face of the fixed cylinder (42), the caulking groove (421) is coaxially arranged with the tight nut (6), a part of the tight nut (6) is embedded in the caulking groove (421), and the outer side wall of the tight nut (6) is attached to the side wall of the caulking groove (421).

7. A nut tightening installation device used in a narrow space according to claim 3, characterized in that a limiting ring (430) is connected to the outer side wall of the collar (43), a limiting groove (413) is arranged on the side wall of the through hole (410), and the limiting ring (430) is located in the limiting groove (413) and is in sliding fit with the limiting groove (413) along the circumferential direction of the through hole (410).

8. The nut installing device for tightening nuts in a small space according to claim 7, wherein the limiting ring (430) is an incomplete toothed ring, the transmission assembly (5) comprises a transmission gear (52) and a driving gear (51), a transmission shaft of the servo tightening machine (3) penetrates through the adapter seat (2) and is rotationally connected with the fastening plate (41), the driving gear (51) is coaxially connected to the transmission shaft of the servo tightening machine (3), the transmission gear (52) is rotationally arranged on the fastening plate (41), the transmission gear (52) is located between the driving gear (51) and the limiting ring (430), the transmission gear (52), the driving gear (51) and the limiting ring (430) are axially parallel to each other, and the transmission gear (52) is meshed with the driving gear (51) and the limiting ring (430).

9. The nut tightening device for use in a small space according to claim 8, wherein two sets of the transmission gears (52) are provided, and the two sets of the transmission gears (52) are symmetrically arranged with a line connecting an axis of the driving gear (51) and an axis of the through hole (410) as a symmetry axis.

10. A union nut mounting device for use in small spaces according to claim 1, characterized in that said handling member (1) is a flexible robot.