CN220055331U - Turnover mechanism with buffering function - Google Patents

Abstract

The utility model relates to a turnover mechanism with a buffering function, which comprises a frame, a turnover arm, a driving assembly and a buffering assembly, wherein the turnover arm is arranged on the frame; the turning arm is arranged on the frame in a turning way; the driving assembly is arranged on the frame and comprises a gear, a rack, a turnover shaft and a driver, the gear is fixedly connected with the turnover arm through the turnover shaft, the gear is meshed with the rack, the driver is fixedly arranged on the frame, and the rack is in transmission connection with the driver; the buffer assembly is installed in the frame, and the buffer assembly includes buffer rod, connecting piece, butt spare and buffering elastic component, and buffer rod fixed mounting is in the frame, and the one end and the buffer rod sliding connection of connecting piece, the other end and the rack fixed connection of connecting piece, butt spare adjustable fixed connection buffer rod, buffering elastic component suit outside the buffer rod, buffering elastic component respectively with butt spare and connecting piece butt. The utility model can ensure that the turnover arm has good running stability, good buffering effect and wide application range.

Description

Turnover mechanism with buffering function

Technical Field

The utility model relates to the technical field of automobile production tool fixtures, in particular to a turnover mechanism with a buffering function.

Background

With the rapid development of the automobile industry, a large number of new automobile types are continuously emerging, the automobile manufacturing process is also greatly improved, particularly in the welding process, various fixture clamps are formed, and a part of the fixture clamps can be assembled and welded after being turned over due to the requirement of the welding state of parts, so that a large number of turning-over fixtures are formed.

The turning fixture generally utilizes the cylinder to drive the rack to move, and the rack drives the gear to rotate so as to drive the turning arm to turn over, and certain impact forces are generated in the turning process due to the inertia effect of the turning fixture, and the impact forces are not well distributed, absorbed and released, so that the phenomenon that the rotating connection position of the fixture is frequently damaged after long-time use, and the maintenance cost is increased.

To this problem, generally adopt the buffer to cushion the tilting arm, but because the buffering stroke of buffer is very short, and the buffer can only cushion tilting arm motion end stroke, the phenomenon of rapid deceleration can appear in the tilting arm like this, makes the tilting arm take place to shake, influences the operational stability of tilting arm to influence the buffering effect.

Disclosure of Invention

Based on this, it is necessary to provide a turnover mechanism with a buffering function, aiming at the problems that the conventional buffer is adopted to buffer a turnover arm, the phenomenon of rapid deceleration of the turnover arm occurs, the turnover arm shakes, the running stability of the turnover arm is affected, and the buffering effect is affected.

A turnover mechanism with buffering function, comprising:

the machine frame is provided with a machine frame,

the overturning arm is arranged on the rack in a reversible manner;

the driving assembly is arranged on the frame and comprises a gear, a rack, a turnover shaft and a driver, wherein the gear is fixedly connected with the turnover arm through the turnover shaft, the gear is meshed with the rack, the driver is fixedly arranged on the frame, and the rack is in transmission connection with the driver; and

the buffer assembly is arranged on the frame and comprises a buffer rod, a connecting piece, an abutting piece and a buffer elastic piece, wherein the buffer rod is fixedly arranged on the frame, one end of the connecting piece is in sliding connection with the buffer rod, the other end of the connecting piece is fixedly connected with the rack, the abutting piece is adjustably and fixedly connected with the buffer rod, the buffer elastic piece is sleeved outside the buffer rod, and the buffer elastic piece is respectively in abutting connection with the connecting piece.

According to the turnover mechanism with the buffering function, the buffer elastic piece is adopted to replace a traditional buffer, so that the buffer elastic piece can always buffer the turnover arm in the whole motion process of the turnover arm, the phenomenon of rapid deceleration of the turnover arm can be avoided, the running stability of the turnover arm is good, and the buffering effect is good; the buffer rod is fixedly connected with the abutting part in an adjustable mode, so that the buffer stroke of the buffer elastic part can be changed by adjusting the position of the abutting part on the buffer rod, and therefore a user can change the buffer stroke of the buffer elastic part according to the load capacity of the turning arm, the buffer effect is better, and the application range is wide.

In one embodiment, the number of the abutting pieces is two, and the two abutting pieces are respectively arranged at two sides of the connecting piece.

In one embodiment, the abutment member is slidably mounted on the buffer rod in a threaded manner.

In one embodiment, the number of the buffer elastic pieces is two, and the two buffer elastic pieces are respectively arranged at two sides of the connecting piece.

In one embodiment, the connecting piece comprises a sleeve part and a connecting part connected with the sleeve part, the sleeve part is sleeved outside the buffer rod, and the connecting part is fixedly connected with the rack.

In one embodiment, the rack comprises a bottom plate, a mounting rack, a fixing block and a mounting block, wherein the mounting rack is fixedly arranged on the bottom plate, the fixing block is fixedly arranged on the bottom plate, the mounting block is detachably fixed on the bottom plate in a threaded connection mode, the mounting block and the fixing block are oppositely arranged, and the buffer rod is fixedly arranged between the mounting block and the fixing block.

In one embodiment, the driving assembly further comprises a sliding seat and a guide rail, wherein the sliding seat is fixedly arranged on the fixed block, the guide rail is in sliding connection with the sliding seat, and the guide rail is fixedly connected with the rack.

In one embodiment, the fixing block is provided with a fixing hole for fixing the slider.

In one embodiment, the driver is a cylinder, and the rack is fixedly connected with the telescopic end of the cylinder.

Drawings

FIG. 1 is an assembled structure diagram of a turnover mechanism with a buffer function according to an embodiment of the present utility model;

fig. 2 is an assembly structure diagram of a tilting mechanism with a buffer function according to another embodiment of the present utility model.

The meaning of the reference numerals in the drawings are:

100-a turnover mechanism with a buffer function;

10-frames, 11-bottom plates, 12-mounting frames, 13-fixed blocks and 14-mounting blocks;

20-turning arms;

30-driving components, 31-gears, 32-racks, 33-turning shafts, 34-drivers, 35-sliding seats and 36-guide rails;

40-cushion assembly, 41-cushion rod, 42-connector, 421-sleeve portion, 422-connector, 43-abutment, 43 a-outer abutment, 43 b-inner abutment, 44-cushion spring, 44 a-outer cushion spring, 44 b-inner cushion spring.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

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, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. 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.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1, an overturning mechanism 100 with a buffering function according to an embodiment of the utility model includes a frame 10, an overturning arm 20, a driving assembly 30 and a buffering assembly 40; the turnover arm 20 is installed on the frame 10 in a turnover manner, the driving assembly 30 is installed on the frame 10, the driving assembly 30 drives the turnover arm 20 to turn over, the buffer assembly 40 is arranged on the frame 10, the buffer assembly 40 is installed on the frame 10, and the buffer assembly 40 is used for buffering the turnover arm 20.

As shown in fig. 1, the rack 10 includes a bottom plate 11, a mounting frame 12, a fixing block 13 and a mounting block 14, the mounting frame 12 is fixedly mounted on the bottom plate 11, the fixing block 13 is fixed on the bottom plate 11, the fixing block 13 includes a main body portion and a fixing portion connected with the main body portion, the main body portion is fixedly connected with the bottom plate 11, the fixing portion is provided with a fixing hole, the mounting block 14 is detachably fixed on the bottom plate 11 in a threaded connection manner, and the mounting block 14 is arranged opposite to the fixing block 13.

As shown in fig. 1, the driving assembly 30 includes a gear 31, a rack 32, a turnover shaft 33 and a driver 34, the turnover shaft 33 is rotatably mounted on the mounting frame 12, the turnover arm 20 is fixedly connected with the turnover shaft 33, the gear 31 is disposed at an end portion of the turnover shaft 33 far away from the turnover arm 20, the rack 32 is meshed with the gear 31, the driver 34 is fixedly mounted on the mounting frame 12, the rack 32 is in transmission connection with the driver 34, the driver 34 is an air cylinder, and the rack 32 is fixedly connected with a telescopic end of the air cylinder.

As shown in fig. 1, the driving assembly 30 further includes a sliding seat 35 and a guide rail 36, the sliding seat 35 is provided with a screw hole, the sliding seat 35 is fixedly mounted on the fixed block 13 through the cooperation of a bolt passing through the fixing hole and the screw hole, the guide rail 36 is slidably connected with the sliding seat 35, and the rack 32 is fixedly connected with the guide rail 36.

As shown in fig. 1, the buffer assembly 40 includes a buffer rod 41, a connecting member 42, an abutting member 43 and a buffer elastic member 44, wherein the main body and the mounting block 14 are respectively provided with a clamping hole, one end of the buffer rod 41 is clamped into the clamping hole of the main body, and the other end of the buffer rod 41 is clamped into the clamping hole of the mounting block 14. The connecting member 42 includes a sleeve portion 421 and a connecting portion 422 connected to the sleeve portion 421, the sleeve portion 421 is sleeved outside the buffer rod 41, and the connecting portion 422 is fixedly connected to the rack 32. The abutting piece 43 is sleeved outside the buffer rod 41, the abutting piece 43 is slidably arranged on the buffer rod 41 in a threaded mode, and therefore the position of the abutting piece 43 on the buffer rod 41 can be adjusted through the knob abutting piece 43, the buffer stroke of the buffer elastic piece 44 can be changed, and therefore a user can adjust the buffer force according to the carrying capacity of the turning arm 20, and the buffer effect is good. The buffer elastic member 44 is sleeved outside the buffer rod 41, one end of the buffer elastic member 44 is abutted against the abutting member 43, and the other end of the buffer elastic member 44 is abutted against the connecting member 42.

Because the installation piece 14 is detachably fixed on the bottom plate 11 through the spiro union mode, the buffer rod 41 is located between fixed block 13 and the installation piece 14, and the butt piece 43 is installed on the buffer rod 41 through the spiro union mode slip, and buffering elastic component 44 suit is on the buffer rod 41, as long as the installation piece 14 is detached, the user can change corresponding buffering elastic component 44 according to the load capacity of turning arm 20, and the buffering effect is better.

The working procedure of the turnover mechanism 100 with the buffering function in the present embodiment is as follows: when the turning arm 20 is opened, the driver 34 drives the rack 32 to push out the rack 32 in a straight line, the rack 32 drives the gear 31 to rotate anticlockwise, the gear 31 and the turning shaft 33 are matched to drive the turning arm 20 to rotate anticlockwise, meanwhile, the connecting piece 42 moves under the drive of the rack 32, and the connecting piece 42 pushes the buffering elastic piece 44 to enable the buffering elastic piece 44 to generate compression deformation, so that the buffering elastic piece 44 generates buffering force to act on the rack 32, and the effect of buffering the turning arm 20 is achieved.

Fig. 2 shows a tilting mechanism 100 with a buffer function according to another embodiment of the present utility model, which is different from the above embodiment in that: the number of the abutting pieces 43 is two, and the outer abutting pieces 43a and the inner abutting pieces 43b are divided into an outer abutting piece 43a and an inner abutting piece 43b, and the outer abutting pieces 43a and the inner abutting pieces 43b are respectively arranged on two sides of the connecting piece 42. The number of the buffer elastic pieces 44 is two, and the buffer elastic pieces are divided into an outer buffer elastic piece 44a and an inner buffer elastic piece 44b, one end of the outer buffer elastic piece 44a is abutted against the outer abutting piece 43a, the other end of the outer buffer elastic piece 44a is abutted against the connecting piece 42, one end of the inner buffer elastic piece 44b is abutted against the inner abutting piece 43b, and the other end of the inner buffer elastic piece 44b is abutted against the connecting piece 42. By the combined action of the outer buffer elastic piece 44a and the inner buffer elastic piece 44b, the bidirectional buffer action on the turnover arm 20 is realized, the buffer effect on the turnover arm 20 can be further improved, and the turnover arm 20 can run more stably.

The working procedure of the turnover mechanism 100 with the buffering function in the present embodiment is as follows: when the turning arm 20 is opened, the driver 34 drives the rack 32 to push out the rack 32 in a straight line, the rack 32 drives the gear 31 to rotate anticlockwise, the gear 31 and the turning shaft 33 are matched to drive the turning arm 20 to rotate anticlockwise, meanwhile, the connecting piece 42 moves under the drive of the rack 32, and the connecting piece 42 pushes the outer buffering elastic piece 44a to enable the outer buffering elastic piece 44a to generate compression deformation, so that the outer buffering elastic piece 44a generates buffering force to act on the rack 32 to realize the buffering action on the turning arm 20; when the turning arm 20 is closed, the driver 34 drives the rack 32 to reset linearly inwards, the rack 32 drives the gear 31 to rotate clockwise, the gear 31 and the turning shaft 33 cooperate to drive the turning arm 20 to rotate clockwise, meanwhile, the connecting piece 42 moves under the drive of the rack 32, and the connecting piece 42 pushes the inner buffering elastic piece 44b to enable the inner buffering elastic piece 44b to generate compression deformation, so that the inner buffering elastic piece 44b generates buffering force to act on the rack 32, and the effect of buffering the turning arm 20 is achieved. By the combined action of the outer buffer elastic piece 44a and the inner buffer elastic piece 44b, the bidirectional buffer action on the turnover arm 20 is realized, the buffer effect on the turnover arm 20 can be further improved, and the turnover arm 20 can run more stably.

The beneficial effects of the utility model are as follows: the buffer elastic piece 44 is adopted to replace the traditional buffer, so that the buffer elastic piece 44 can always buffer the turnover arm 20 in the whole movement process of the turnover arm 20, the phenomenon of rapid deceleration of the turnover arm 20 can be avoided, the running stability of the turnover arm 20 is good, and the buffer effect is good; the abutting piece 43 is adjustably and fixedly connected with the buffer rod 41, so that the buffer stroke of the buffer elastic piece 44 can be changed by adjusting the position of the abutting piece 43 on the buffer rod 41, and therefore a user can change the buffer stroke of the buffer elastic piece 44 according to the carrying capacity of the turning arm 20, the buffer effect is better, and the application range is wide.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (9)

1. Tilting mechanism with buffer function, characterized by comprising:

the machine frame is provided with a machine frame,

the overturning arm is arranged on the rack in a reversible manner;

the driving assembly is arranged on the frame and comprises a gear, a rack, a turnover shaft and a driver, wherein the gear is fixedly connected with the turnover arm through the turnover shaft, the gear is meshed with the rack, the driver is fixedly arranged on the frame, and the rack is in transmission connection with the driver; and

the buffer assembly is arranged on the frame and comprises a buffer rod, a connecting piece, an abutting piece and a buffer elastic piece, wherein the buffer rod is fixedly arranged on the frame, one end of the connecting piece is in sliding connection with the buffer rod, the other end of the connecting piece is fixedly connected with the rack, the abutting piece is adjustably and fixedly connected with the buffer rod, the buffer elastic piece is sleeved outside the buffer rod, and the buffer elastic piece is respectively in abutting connection with the connecting piece.

2. The turnover mechanism with buffering function according to claim 1, wherein the number of the abutting pieces is two, and the two abutting pieces are respectively arranged on two sides of the connecting piece.

3. The turnover mechanism with buffering function according to claim 2, wherein the abutting piece is slidably installed on the buffering rod in a threaded connection mode.

4. The turnover mechanism with buffering function according to claim 3, wherein the number of the buffering elastic pieces is two, and the two buffering elastic pieces are respectively arranged at two sides of the connecting piece.

5. The turnover mechanism with the buffering function according to claim 1, wherein the connecting piece comprises a sleeve part and a connecting part connected with the sleeve part, the sleeve part is sleeved outside the buffering rod, and the connecting part is fixedly connected with the rack.

6. The turnover mechanism with a buffering function according to claim 1, wherein the rack comprises a bottom plate, a mounting frame, a fixing block and a mounting block, the mounting frame is fixedly arranged on the bottom plate, the fixing block is fixedly arranged on the bottom plate, the mounting block is detachably fixed on the bottom plate in a threaded mode, the mounting block is arranged opposite to the fixing block, and the buffer rod is fixedly arranged between the mounting block and the fixing block.

7. The turnover mechanism with buffering function according to claim 6, wherein the driving assembly further comprises a sliding seat and a guide rail, the sliding seat is fixedly arranged on the fixed block, the guide rail is in sliding connection with the sliding seat, and the guide rail is fixedly connected with the rack.

8. The turnover mechanism with buffering function of claim 7, wherein the fixing block is provided with a fixing hole for fixing the slider.

9. The turnover mechanism with the buffering function according to claim 1, wherein the driver is an air cylinder, and the rack is fixedly connected with the telescopic end of the air cylinder.