CN220312417U - Floating mechanism and screwing device - Google Patents

Abstract

The utility model belongs to the technical field of bolt fixing equipment, and discloses a floating mechanism and a tightening device. The floating mechanism includes a mounting sleeve, a support base, and a plurality of floating assemblies. The mounting sleeve is used for fixing the tightening gun, and the tightening gun is fixedly arranged in the mounting sleeve in a penetrating manner; the support base is used for being fixed on the external moving mechanism and comprises an annular piece, the installation sleeve is movably sleeved outside the annular piece, the tightening gun penetrates through the annular piece to be arranged, and an annular gap is formed between the installation sleeve and the annular piece; a plurality of floating assemblies are circumferentially distributed in the annular gap at intervals, and the floating mechanism can achieve fine adjustment of the position of the screwing gun. The tightening device comprises a tightening gun, an external moving mechanism and the floating mechanism. The tightening device can achieve fine adjustment of the position of the tightening gun, further enable the tightening gun to be accurately aligned with the bolt, and improve the fixing effect of the bolt.

Description

Floating mechanism and screwing device

Technical Field

The utility model relates to the technical field of bolt fixing equipment, in particular to a floating mechanism and a tightening device.

Background

The bolts are widely used in the mechanical field as a fastener for installing and fixing the profile, and the automatic tightening guns derived from the bolts are widely used. In the intelligent production field, an automatic tightening gun is arranged on a moving mechanism such as a robot arm, the moving mechanism such as the robot arm moves to drive the automatic tightening gun to move to a station, and then a front end sleeve of the automatic tightening gun is sleeved on a bolt to tighten or loosen the bolt.

Because of the accumulated errors of the stop position, the product size, the assembly size and the like of the automatic guiding moving vehicle for loading the screwed materials, the automatic screwing gun is easy to be aligned with the bolt in a non-accurate manner, the position of the automatic screwing gun is required to be adjusted, but the moving range of the automatic screwing gun is larger due to the movement adjustment of the moving mechanism such as the robot arm and the like, so that the position of the automatic screwing gun is required to be finely adjusted, otherwise, the problems that the bolt is difficult to recognize a cap when the automatic screwing gun is sleeved on the bolt, and the bolt is blocked or a threaded nut is damaged when the automatic screwing gun is screwed are caused. However, in the prior art, the automatic tightening gun is fixed on a moving mechanism such as a robot arm, and the position of the automatic tightening gun cannot be finely adjusted.

Therefore, it is necessary to provide a floating mechanism and a tightening device to solve the above problems.

Disclosure of Invention

According to one aspect of the present utility model, a float mechanism is provided that enables fine adjustment of the position of a tightening gun.

To achieve the purpose, the utility model adopts the following technical scheme:

a floating mechanism, comprising:

the mounting sleeve is used for fixing the tightening gun, and the tightening gun is fixedly arranged in the mounting sleeve in a penetrating manner; the support base is used for being fixed on an external moving mechanism and comprises an annular piece, the installation sleeve is movably sleeved outside the annular piece, the tightening gun penetrates through the annular piece to be arranged, and an annular gap is formed between the installation sleeve and the annular piece;

the floating assemblies are distributed in the annular gap at intervals along the circumferential direction, each floating assembly comprises an elastic piece, one end of each elastic piece is connected or abutted to the inner wall surface of the mounting sleeve, and the other end of each elastic piece is connected or abutted to the outer wall surface of the annular piece.

Optionally, the installation sleeve includes two at least fixed blocks, adjacent can dismantle between the fixed block and be connected, the fixed block includes the arcwall face, all the arcwall face encloses jointly and establishes the formation confession screw up the through-hole that the rifle passed.

Optionally, each fixing block is provided with a connecting hole in a penetrating manner, and the mounting sleeve further comprises a connecting piece, wherein the connecting piece is arranged in the connecting holes of the fixing blocks in a penetrating manner in an adjacent manner.

Optionally, the through hole is a stepped hole, and comprises a first hole and a second hole which are communicated circumferentially, wherein the aperture of the first hole is smaller than that of the second hole, and the annular piece is arranged in the second hole.

Optionally, each floating assembly further comprises a guide member, the guide member is fixedly connected to the outside of the annular member along the radial direction of the annular member, the guide member movably penetrates through the mounting sleeve, and the elastic member is sleeved outside the guide member.

Optionally, the mounting sleeve is provided with a strip hole, the guide member passes through the strip hole, and a gap is formed between the outer wall surface of the guide member and the inner wall surface of the strip hole.

Optionally, the support base further comprises a support structure, the ring member is arranged on the support structure, and the support structure is used for being connected with the external moving mechanism.

Optionally, the support structure includes a first connection plate and a second connection plate that are vertically connected, the ring member is provided on the first connection plate, and the second connection plate is used for being connected with the external moving mechanism.

Optionally, the support structure further comprises a reinforcing block, one end of the reinforcing block is connected with the first connecting plate, and the other end of the reinforcing block is connected with the second connecting plate.

According to another aspect of the utility model, a tightening device is provided, which comprises a floating mechanism, and in the bolt tightening process, the tightening device can realize fine adjustment of the position of a tightening gun through the floating mechanism, so that the tightening gun is accurately aligned with a bolt, and the fixing effect of the bolt is improved.

The tightening device comprises a tightening gun, an external moving mechanism and the floating mechanism, wherein the tightening gun is fixedly arranged in a mounting sleeve of the floating mechanism in a penetrating mode, and a supporting base of the floating mechanism is fixedly connected with the external moving mechanism.

The utility model has the beneficial effects that: the utility model provides a floating mechanism which comprises a mounting sleeve, a supporting base and a plurality of floating assemblies. The tightening gun is fixed in the installation sleeve in a penetrating manner, the support base comprises an annular piece, the installation sleeve is movably sleeved outside the annular piece, the tightening gun penetrates through the annular piece to form an annular gap between the installation sleeve and the annular piece, a plurality of floating assemblies are distributed in the annular gap at intervals, and the installation sleeve can move relative to the annular piece through the floating assemblies, so that the tightening gun is driven to float towards any direction in one plane, fine adjustment of the position of the tightening gun is achieved, and the tightening gun and a bolt are accurately aligned. Compared with the prior art, the external moving mechanism can only bring the tightening gun to the station, and can only find the approximate position for the tightening gun or barely sleeve the bolt. The floating mechanism solves the problems that the bolt is not recognized as a cap and is clamped or damaged when being screwed, and the fixing effect of the bolt is improved.

The tightening device comprises a tightening gun, an external moving mechanism and a floating mechanism, wherein the tightening gun is fixedly arranged in a mounting sleeve of the floating mechanism in a penetrating mode, and a supporting base of the floating mechanism is fixedly connected with the external moving mechanism. The external moving mechanism can drive the floating mechanism provided with the tightening gun to move to the station, and under the condition that the sleeve at the front end of the tightening gun is not completely and accurately sleeved with the nut, the fine adjustment of the position of the tightening gun can be realized through the floating mechanism, so that the sleeve at the front end of the tightening gun is accurately sleeved on the bolt. In the bolt screwing process, fine adjustment of the screwing gun position is achieved through the floating mechanism, and therefore the screwing gun is accurately aligned with the bolt. The tightening device solves the problems that in the prior art, the bolt is not recognized to be capped, and the screw cap is clamped or damaged when the bolt is tightened, and the fixing effect of the bolt is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is an assembly view of a floating mechanism and a tightening gun provided by the present utility model;

FIG. 2 is a schematic view of a floating mechanism according to the present utility model;

FIG. 3 is a cross-sectional view of a floating mechanism provided by the present utility model;

FIG. 4 is a schematic structural view of an assembled mounting sleeve and floating assembly provided by the present utility model;

FIG. 5 is a schematic view of the structure of the support base provided by the present utility model;

fig. 6 is a schematic structural view of the mounting sleeve provided by the present utility model.

In the figure:

100. tightening the gun; 200. a mounting sleeve; 210. a fixed block; 211. an arc surface; 220. a connecting piece; 201. a first hole; 202. a second hole; 203. a slit hole; 300. a support base; 310. a ring member; 320. a support structure; 321. a first connection plate; 322. a second connecting plate; 323. a reinforcing block; 400. a floating assembly; 410. an elastic member; 420. a guide member; 501. an annular void.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The utility model provides a floating mechanism which can be used for a tightening device to realize fine adjustment of the position of a tightening gun in the tightening device. Of course, besides the screwing device, the floating mechanism can also be used in other devices with fine adjustment requirements, such as an automatic perforating gun, so as to realize accurate perforation of the perforating gun, and other available devices are not listed in the utility model, so long as fine adjustment of the position of an application object can be realized, and the floating mechanism provided by the utility model can be used.

In particular, as shown in fig. 1-6, the floating mechanism includes a mounting sleeve 200, a support base 300, and a plurality of floating assemblies 400. Wherein, the tightening gun 100 is fixedly penetrated in the mounting sleeve 200, so that the mounting sleeve 200 plays a role in fixing the tightening gun 100. The support base 300 is fixed on the external moving mechanism, the support base 300 comprises an annular member 310, the installation sleeve 200 is movably sleeved outside the annular member 310, the tightening gun 100 is arranged through the annular member 310, and an annular gap 501 is formed between the installation sleeve 200 and the annular member 310. A plurality of floating assemblies 400 are circumferentially spaced apart in the annular space 501, each floating assembly 400 includes an elastic member 410, one end of the elastic member 410 is connected to or abuts against the inner wall surface of the mounting sleeve 200, and the other end of the elastic member 410 is connected to or abuts against the outer wall surface of the annular member 310. The plurality of floating assemblies 400 are arranged, and the tightening gun 100 is arranged through the mounting sleeve 200 and the annular piece 310, so that the mounting sleeve 200 can move relative to the annular piece 310 through the floating assemblies 400, and the tightening gun 100 is driven to float towards any direction in a plane, so that fine adjustment of the position of the tightening gun 100 is realized, and the tightening gun 100 is accurately aligned with a bolt. Compared with the prior art, the tightening device can only bring the tightening gun 100 to a station, so that a rough position or a situation of barely sleeving a bolt can be found for the tightening gun 100. The floating mechanism solves the problems that the bolt is not recognized as a cap and is clamped or damaged when being screwed, and the fixing effect of the bolt is improved.

It should be noted that the number of floating assemblies 400 is at least two, and may be, for example, two, three, four, five, six, etc. Preferably, the number of floating members is even, and the floating members are symmetrically arranged, so that the gun is attractive and symmetrical, and the position of the tightening gun 100 can be symmetrically adjusted. As an optimal solution, the number of the floating assemblies 400 may be set to six, and the six floating assemblies 400 are symmetrically disposed. The screwing gun 100 can be floated in any direction in a plane, so that the accurate fine adjustment of the position of the screwing gun 100 is realized; but also can give consideration to the material cost.

In some embodiments, as shown in fig. 1, 2 and 6, the mounting sleeve 200 includes at least two fixing blocks 210, wherein adjacent fixing blocks 210 are detachably connected, the fixing blocks 210 include arc-shaped surfaces 211, and all the arc-shaped surfaces 211 jointly enclose a through hole for the tightening gun 100 to pass through. The fixing blocks 210 can be detachably clamped to the mounting mode of the tightening gun 100, so that on one hand, the tightening gun 100 can be conveniently dismounted and mounted, and on the other hand, the floating mechanism can be used for mounting tightening guns 100 with different sizes; the arc surface 211 on the fixing block 210 is arranged to enable the fixing block 210 to be attached to the outer wall surface of the tightening gun 100, so that the surface of the tightening gun 100 is prevented from being damaged due to uneven stress in the process of clamping and fixing the tightening gun 100.

In a specific embodiment, as shown in fig. 1, 3 and 6, the mounting sleeve 200 includes two fixing blocks 210, the two semicircular fixing blocks 210 are detachably connected to form a circular ring, two arc surfaces 211 are surrounded to form a through hole for the tightening gun 100 to pass through, and the two fixing blocks 210 enable the number of connections to be small, the connection to be simple, the circular ring shape to be symmetrical and attractive, and the processing to be simple, corresponding to the internal annular gap 501.

In order to realize detachable connection of the adjacent fixing blocks 210, each fixing block 210 is provided with a connecting hole in a penetrating manner, and the mounting sleeve 200 further comprises a connecting piece 220, wherein the connecting piece 220 is arranged in the connecting hole of the adjacent fixing block 210 in a penetrating manner. The detachable connection mode is firm in connection and simple in connection hole processing.

In some embodiments, the connecting piece 220 is a bolt, the connecting hole is a threaded hole, and the bolt is in a threaded connection manner, so that the fixing effect is good.

In some more specific embodiments, when the number of the fixing blocks 210 is two, the number of the bolts is also two, two threaded holes are arranged on each fixing block 210 at intervals, and the threaded holes on the same side of the two fixing blocks 210 are opposite to each other and share one bolt. Further, two bolts are symmetrically disposed in parallel at both sides of the through hole to connect the two fixing blocks 210, so that the clamping force of the two fixing blocks 210 to the tightening gun 100 can be consistent.

With continued reference to fig. 2, the upper end surface of the fixing block 210 is provided with notches corresponding to the head and tail positions of the bolt, so that on one hand, the nut and the nut do not protrude out of the fixing block 210 and are attractive, and on the other hand, the contact area between the nut and the fixing block 210 can be increased, and the fixing effect is improved.

With continued reference to fig. 1, 3 and 4, the through hole is a stepped hole, and includes a first hole 201 and a second hole 202 that are axially connected, the aperture of the first hole 201 is smaller than that of the second hole 202, and the ring member 310 is disposed in the second hole 202. The first hole 201 is used for threading the tightening gun 100, the second hole 202 is used for threading the tightening gun 100 on one hand and sleeving the annular piece 310 on the other hand so as to form an annular gap 501, and the two-purpose device is simple in processing and good in operation compared with the mode that the annular hole is independently sleeved on the annular piece 310.

Of course, in other embodiments, the mounting sleeve 200 may also include an outer ring member having only one circular hole, and the outer ring member is sleeved outside the ring member 310, and the heights of the outer ring member and the ring member may be equal or different. Of course, the mounting sleeve 200 includes, in addition to the outer ring member, a fixing member protruding from the top surface of the outer ring member for fixing the tightening gun 100, and the fixing member may be a fixing ring, which may be connected to the outer ring member through a support arm.

In order to improve the moving accuracy of the mounting sleeve 200, as shown in fig. 3 and 4, each floating assembly 400 further includes a guide member 420, the guide member 420 is fixedly connected to the outside of the ring member 310 in the radial direction of the ring member 310, the guide member 420 is movably inserted through the mounting sleeve 200, and the elastic member 410 is sleeved outside the guide member 420. The provision of the guide 420 provides directional guiding for the elastic member 410 to float. The elastic member 410 in this embodiment is a spring, which is inexpensive and easy to install.

In this embodiment, the guide member 420 is a guide bolt, and the spring is sleeved on the guide bolt. The guide bolt passes through the mounting sleeve 200, the nut end of the guide bolt is abutted against the mounting sleeve 200, the thread end of the guide bolt is connected with the annular piece 310 in a threaded manner, and the connection mode is simple and easy to operate; and the guide bolt is also a conventional part and is simple to assemble with the spring.

As shown in fig. 2 and 3, the mounting sleeve 200 is further provided with a long hole 203, the guide 420 is disposed through the long hole 203, and a gap is formed between an outer wall surface of the guide 420 and an inner wall surface of the long hole 203. The elongated hole 203 is provided to connect the mating guide 420 with the mounting sleeve 200 on the one hand and to provide an adjustment space for the mounting sleeve 200 to float on the other hand. To better achieve the floating of the mounting sleeve 200, the elongated holes 203 are provided extending in the circumferential direction of the mounting sleeve 200. In one particular embodiment, the elongated aperture 203 is an elliptical aperture; in another embodiment, the elongated hole 203 is a kidney-shaped hole; in yet another specific embodiment, the elongated aperture 203 is a rectangular aperture.

As shown in fig. 5, in some embodiments, the support base 300 further includes a support structure 320, the ring 310 is disposed on the support structure 320, and the support structure 320 is configured to be coupled to an external moving mechanism.

Further, as shown in fig. 1 and 5, the support structure 320 includes a first connection plate 321 and a second connection plate 322 vertically connected, the ring 310 is provided on the first connection plate 321, and the second connection plate 322 is used for connection with an external moving mechanism. The connecting plate is simple and is easy to process; the first connection plate 321 and the second connection plate 322 are vertically disposed, and when the second connection plate 322 is horizontally or vertically connected to the external moving mechanism, the tightening gun 100 is placed in a horizontal position or a vertical position. The shape of the vertical connection of the first connection plate 321 and the second connection plate 322 may be L-shaped, T-shaped, etc., and the present application is not particularly limited. The L-shaped structure is simple in structure and saves materials.

Still further, the supporting structure 320 further includes a reinforcing block 323, one end of the reinforcing block 323 is connected with the first connecting plate 321, and the other end of the reinforcing block 323 is connected with the second connecting plate 322, so as to increase the connection strength of the first connecting plate 321 and the second connecting plate 322 and increase the service life of the supporting base 300. The number of the reinforcing blocks 323 is not limited, in this embodiment, the number of the reinforcing blocks 323 is two, and the two reinforcing blocks 323 are arranged at intervals and positioned at two ends of the supporting structure 320, so that the supporting effect and the processing material cost are both considered.

The utility model also provides a screwing device, which comprises a screwing gun 100, an external moving mechanism and a floating mechanism, wherein the screwing gun 100 is fixedly arranged in a mounting sleeve 200 of the floating mechanism in a penetrating way, and a supporting base 300 of the floating mechanism is fixedly connected with the external moving mechanism. In some embodiments, the external movement mechanism is a robotic arm.

The screwing device can drive the floating mechanism provided with the screwing gun 100 to move to a station, and under the condition that the sleeve at the front end of the screwing gun 100 does not completely and accurately register the nut, the position of the screwing gun 100 can be finely adjusted through the floating mechanism, so that the sleeve at the front end of the screwing gun 100 is accurately registered on the bolt. In the bolt tightening process, fine adjustment of the position of the tightening gun 100 can be achieved through the floating mechanism, so that the tightening gun 100 is accurately aligned with the bolt. The tightening device solves the problems that in the prior art, the bolt is not recognized to be capped, and the screw cap is clamped or damaged when the bolt is tightened, and the fixing effect of the bolt is improved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. A floating mechanism, comprising:

the mounting sleeve (200) is used for fixing the tightening gun (100), and the tightening gun (100) is fixedly arranged in the mounting sleeve (200) in a penetrating manner;

the support base (300) is used for being fixed on an external moving mechanism, the support base (300) comprises an annular piece (310), the installation sleeve (200) is movably sleeved outside the annular piece (310), the tightening gun (100) penetrates through the annular piece (310) to be arranged, and an annular gap (501) is formed between the installation sleeve (200) and the annular piece (310);

the plurality of floating assemblies (400) are circumferentially distributed in the annular gap (501) at intervals, each floating assembly (400) comprises an elastic piece (410), one end of each elastic piece (410) is connected or abutted on the inner wall surface of the mounting sleeve (200), and the other end of each elastic piece (410) is connected or abutted on the outer wall surface of the annular piece (310).

2. The floating mechanism according to claim 1, wherein the mounting sleeve (200) comprises at least two fixing blocks (210), wherein adjacent fixing blocks (210) are detachably connected, the fixing blocks (210) comprise arc-shaped surfaces (211), and all the arc-shaped surfaces (211) are jointly surrounded to form a through hole for the tightening gun (100) to pass through.

3. The floating mechanism according to claim 2, wherein each of the fixing blocks (210) is provided with a connecting hole therethrough, the mounting sleeve (200) further comprises a connecting member (220), and the connecting member (220) is provided in the connecting hole of the adjacent fixing block (210) in a penetrating manner.

4. The floating mechanism according to claim 2, wherein the through hole is a stepped hole comprising a first hole (201) and a second hole (202) in axial communication, the first hole (201) having a smaller pore size than the second hole (202), the ring member (310) being disposed within the second hole (202).

5. The floating mechanism of claim 1, wherein each floating assembly (400) further comprises a guide member (420), the guide members (420) are fixedly connected to the outside of the annular member (310) along the radial direction of the annular member (310), the guide members (420) are movably penetrated through the mounting sleeve (200), and the elastic members (410) are sleeved outside the guide members (420).

6. The floating mechanism according to claim 5, wherein an elongated hole (203) is provided in the mounting sleeve (200), the guide member (420) is provided through the elongated hole (203), and a gap is formed between an outer wall surface of the guide member (420) and an inner wall surface of the elongated hole (203).

7. The floating mechanism according to any one of claims 1-6, wherein the support base (300) further comprises a support structure (320), the ring (310) being provided on the support structure (320), the support structure (320) being adapted to be connected to the external moving mechanism.

8. The floating mechanism according to claim 7, wherein the support structure (320) comprises a first connection plate (321) and a second connection plate (322) connected vertically, the ring (310) being provided on the first connection plate (321), the second connection plate (322) being for connection with the external moving mechanism.

9. The floating mechanism of claim 8, wherein the support structure (320) further comprises a reinforcing block (323), one end of the reinforcing block (323) being connected to the first connecting plate (321), the other end of the reinforcing block (323) being connected to the second connecting plate (322).

10. A tightening device, characterized by comprising a tightening gun (100), an external moving mechanism and the floating mechanism according to any one of claims 1-9, wherein the tightening gun (100) is fixedly arranged in a mounting sleeve (200) of the floating mechanism in a penetrating manner, and a supporting base (300) of the floating mechanism is fixedly connected with the external moving mechanism.