CN218052056U

CN218052056U - Workpiece clamping assembly

Info

Publication number: CN218052056U
Application number: CN202220958579.2U
Authority: CN
Inventors: 吕晓明; 陈江林
Original assignee: Yongkang Kangzhong Industry And Trade Co ltd
Current assignee: Zhejiang Kangzhong Yongye Technology Co.,Ltd.
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-12-16
Anticipated expiration: 2032-04-25

Abstract

The utility model relates to a workpiece clamping component, which comprises a bracket and a telescopic driving shaft, wherein an upper clamp and a lower clamp which can slide relatively are respectively arranged at the two ends of the bracket, the upper clamp is provided with an upper workpiece rotating shaft, and the lower clamp is provided with a lower workpiece rotating shaft; the telescopic driving shaft is provided with an umbrella-shaped driven gear, and two ends of the telescopic driving shaft are respectively and rotatably connected with the upper workpiece rotating shaft and the lower workpiece rotating shaft; the bracket is provided with a sliding device for driving the upper clamp and the lower clamp to slide on the bracket. Compared with the prior art, the utility model discloses compact structure, the precision is high, and stability is good, and the synchronism is good.

Description

Workpiece clamping assembly

Technical Field

The utility model relates to an equipment for container processing especially relates to a work piece centre gripping subassembly.

Background

In the process of processing and forming the vacuum cup or the kettle, a plurality of processes such as pipe cutting, opening rolling, water expansion, cutting, necking, edge turning, polishing, paint spraying and the like need to be carried out, wherein the polishing is one of the last processes of vacuum cup forming, and has great influence on the appearance and the using effect of a product.

Original polishing technology mainly is manual the polishing, needs the handheld cup of operating personnel promptly, will need the local orientation burnishing machine of polishing, polishes, and the product of polishing out by hand has following several problems: 1. the body has uneven lines and the lines are twill lines; 2. the brightness is not consistent; 3. the requirement of industrial polishing technicians is high; 5. the production cost is high; 6. is not beneficial to factory planning, so the polishing machine capable of automatically adjusting the position of the cup body needs to be developed.

Chinese utility model patent CN 211760645U "work piece centre gripping subassembly for burnishing machine" discloses a work piece centre gripping subassembly for burnishing machine, it includes that the work piece presss from both sides tight fixed plate, the lower extreme of this work piece presss from both sides tight fixed plate is connected with the bottom plate, have on this bottom plate and connect driven roating seat by work piece rotary drive motor, the upper end of this work piece presss from both sides tight fixed plate is connected with an upper fixed plate, this upper fixed plate upper end is provided with work piece die clamping cylinder, this work piece die clamping cylinder's cylinder telescopic link lower extreme passes through the guide block of rotation piece connection.

Compared with the original mode of holding by an operator, the workpiece clamping assembly has the advantages of operation stability and safety, and the quality of workpiece polishing operation can be improved after the workpiece clamping assembly is used.

However, the workpiece clamping assembly only rotates on the rotating seat on the lower fixing plate, so that the workpiece is not stable in rotation, parts of the workpiece are not uniformly contacted with the grinding wheel, and the clamping or loosening of the workpiece clamping assembly is realized by the fact that the upper fixing plate is close to or far away from the lower fixing plate under the action of the air cylinder, the structure is poor in synchronism, and the workpiece is not fine to process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a work piece centre gripping subassembly has mainly solved the synchronism among the prior art poor, and work piece each part is inhomogeneous with the emery wheel contact, and work piece processing is not fine shortcoming. Compared with the prior art, the operation stability and the safety of the device have absolute advantages, and the processing quality of the workpiece can be greatly improved after the device is used.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a workpiece clamping assembly comprises a support and a telescopic driving shaft, wherein an upper clamp and a lower clamp which can slide relatively are arranged at two ends of the support respectively, the upper clamp is provided with an upper workpiece rotating shaft, and the lower clamp is provided with a lower workpiece rotating shaft; the telescopic driving shaft is provided with an umbrella-shaped driven gear, and two ends of the telescopic driving shaft are respectively and rotatably connected with the upper workpiece rotating shaft and the lower workpiece rotating shaft; the bracket is provided with a sliding device for driving the upper clamp and the lower clamp to slide on the bracket.

The upper clamp comprises an upper fixing plate, the upper fixing plate is connected with the support in a sliding mode, an upper clamp support is arranged on the upper fixing plate, an upper driving wheel is arranged at one end of the upper clamp support, the lower end of the upper driving wheel is connected with the telescopic driving shaft, an upper driven wheel is arranged at the other end of the upper clamp support, and the lower end of the upper driven wheel is connected with an upper workpiece rotating shaft; an upper transmission belt is arranged between the upper end of the upper transmission wheel and the upper end of the upper driven wheel, and the upper transmission wheel drives the upper driven wheel to rotate through the upper transmission belt so as to drive the upper workpiece rotating shaft to rotate;

the lower clamp comprises a lower fixing plate, the lower fixing plate is connected with the bracket in a sliding mode, the lower fixing plate is provided with a lower clamp bracket, one end of the lower clamp bracket is provided with a lower driving wheel, the upper end of the lower driving wheel is connected with the telescopic driving shaft, the other end of the lower clamp bracket is provided with a lower driven wheel, and the upper end of the lower driven wheel is connected with the lower workpiece rotating shaft; and a lower transmission belt is arranged between the lower end of the lower transmission wheel and the lower end of the lower driven wheel, and the lower transmission wheel drives the lower driven wheel to rotate through the lower transmission belt so as to drive the lower workpiece rotating shaft to rotate.

The sliding device comprises a sliding rail arranged on the bracket, and the upper fixing plate and the lower fixing plate are connected with the bracket in a sliding manner through the sliding rail; the upper fixing plate is fixedly provided with a first rack, the lower fixing plate is fixedly provided with a second rack, and the first rack is parallel to the second rack; the support is provided with a gear, the gear is arranged between the first rack and the second rack, and the lower end of the first rack and the upper end of the second rack are respectively meshed with the two sides of the gear.

The support is provided with a driving device, the driving device drives the upper clamp or the lower clamp to move, and the lower clamp or the upper clamp is driven by the combination of the first rack, the second rack and the gear.

The driving means is a cylinder.

The telescopic drive shaft is a splined shaft.

The utility model has the advantages that:

the utility model discloses a work piece centre gripping subassembly adopts upper and lower work piece axis of rotation all with scalable drive shaft connection, umbelliform driving gear and the epaxial umbelliform driven gear vertical meshing of scalable drive, the transmission that shifts is realized, make the connection rotate with work piece axis of rotation in step at the epaxial upper work piece axis of rotation of integral key down, utilize the extending structure of scalable drive shaft simultaneously, when realizing at upper work piece axis of rotation and the synchronous pivoted of work piece axis of rotation down, the relative motion of upper and lower anchor clamps, press from both sides the work piece tight, after pressing from both sides tight work piece, make the contact of each part of work piece and emery wheel even, work piece centre gripping subassembly support slide mechanism's setting, make, lower anchor clamps relative motion is not only synchronous, and stability is better, make the utility model discloses a work piece centre gripping subassembly compares in prior art, compact structure, the precision is high, stability is good, and the synchronism is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a first structural diagram of the present invention in combination with a motion control mechanism of a workpiece clamping assembly.

Fig. 4 is a second structural view of the present invention in combination with a motion control mechanism of the workpiece holding assembly.

Fig. 5 is a schematic view of a pivoting support in a motion control mechanism of a workpiece clamping assembly incorporating the present invention.

Fig. 6 is a schematic structural diagram of a preferred embodiment of the present invention.

In the figure: 1-an annulus gear; 2-external gear ring; 3-a first meshing tooth; 4-a second meshing tooth; 7-a first fixing plate; 8-a second fixing plate; 9-a first drive motor; 10-a second drive motor; 11-a main drive gear; 12-a planet carrier; 13-a planetary drive gear; 14-planet driven gear; 15-an umbrella-shaped driving gear; 16-a scaffold; 17-a splined shaft; 18-upper workpiece rotation axis; 19-lower workpiece rotation axis; 20-bevel driven gear; 21-upper fixing plate; 22-lower fixed plate; 23-mounting a clamp bracket; 24-lower clamp holder; 25-driving wheels; 26-an upper driven wheel; 27-uploading a drive belt; 28-a lower driving wheel; 29-lower driven wheel; 30-lower transmission belt; 31-a slide rail; 32-a first rack; 33-a second rack; 34-a gear; 35-driving means.

Detailed Description

The utility model relates to a workpiece clamping component, which comprises a bracket 16 and a telescopic driving shaft, wherein the bracket 16 is connected with an outer gear ring 2; an upper clamp and a lower clamp which can slide relatively are respectively arranged at two ends of the bracket 16, as shown in fig. 1 and fig. 2, the upper clamp is provided with an upper workpiece rotating shaft 18, and the lower clamp is provided with a lower workpiece rotating shaft 19; the telescopic driving shaft is provided with an umbrella-shaped driven gear 20, the umbrella-shaped driven gear 20 is meshed with a driven umbrella-shaped driving gear 15, the power is transmitted in a shifting mode, the umbrella-shaped driven gear 20 is driven to rotate, the telescopic driving shaft is driven to rotate in the vertical direction, and the telescopic driving shaft drives the upper workpiece rotating shaft 18 and the lower workpiece rotating shaft 19 to synchronously rotate.

Preferably, the telescopic drive shaft is a splined shaft 17.

The upper clamp comprises an upper fixing plate 21, the upper fixing plate 21 is connected with the bracket 16 in a sliding mode, the upper fixing plate 21 is provided with an upper clamp bracket 23, one end of the upper clamp bracket 23 is provided with an upper driving wheel 25, the lower end of the upper driving wheel 25 is connected with the spline shaft 17, the other end of the upper clamp bracket 23 is provided with an upper driven wheel 26, and the lower end of the upper driven wheel 26 is connected with an upper workpiece rotating shaft 18; go up the drive wheel 25 upper end with set up driving belt 27 between the upper end of last driven wheel 26, integral key shaft 17 rotates the drive go up drive wheel 25 and rotate, and drive go up driving belt 27 and rotate, thereby drive go up driven wheel 26 and rotate and then drive go up work piece axis of rotation 18 and rotate.

The lower clamp comprises a lower fixing plate 22, the lower fixing plate 22 is connected with the bracket 16 in a sliding mode, the lower fixing plate 22 is provided with a lower clamp bracket 24, one end of the lower clamp bracket 24 is provided with a lower driving wheel 28, the upper end of the lower driving wheel 28 is connected with the spline shaft 17, the other end of the lower clamp bracket 24 is provided with a lower driven wheel 29, and the upper end of the lower driven wheel 29 is connected with the lower workpiece rotating shaft 19; a lower transmission belt 30 is arranged between the lower end of the lower transmission wheel 28 and the lower end of the lower driven wheel 29, and the spline shaft 17 rotates to drive the lower transmission wheel 28 to rotate and drive the lower transmission belt 30 to rotate, so as to drive the lower driven wheel to rotate 29 and further drive the lower workpiece rotating shaft 19 to rotate.

The support 16 is provided with a sliding device for sliding the upper clamp and the lower clamp on the support 16. As shown in fig. 1 and fig. 2, the sliding device includes a sliding rail 31 disposed on the bracket 16, and the upper fixing plate 21 and the lower fixing plate 22 are slidably connected to the bracket 16 through the sliding rail 31; the upper fixing plate 21 is fixedly provided with a first rack 32 which extends downwards; the lower fixing plate 22 is fixedly provided with a second rack 33 which extends upwards; the first rack 32 and the second rack 33 are parallel and run towards or away from each other; the bracket is provided with a gear 34, the gear 34 is arranged between the first rack 32 and the second rack 33, and the lower end of the first rack 32 and the upper end of the second rack 33 are respectively meshed with two sides of the gear 34.

The support 16 is provided with a driving device 35, the driving device 35 drives the upper clamp or the lower clamp to move, and the lower clamp or the upper clamp is driven by the combination of the first rack 32, the second rack 33 and the gear 34.

Preferably, said driving means 35 is a pneumatic cylinder.

If the cylinder is arranged at the end of the upper clamp, the cylinder pushes the first rack 32 of the upper fixing plate 21 to move downwards to drive the gear 34 to rotate, so as to drive the second rack 33 of the lower fixing plate 22 to move upwards, so that the upper clamp and the lower clamp are closed, and because the telescopic spline shaft 17 is used, the upper workpiece rotating shaft 18 and the lower workpiece rotating shaft 19 can synchronously rotate simultaneously in the process of closing the upper clamp and the lower clamp.

Similarly, the same is true for the cylinder disposed at the lower clamp end.

As shown in fig. 3 and 4, as a preferred embodiment, the workpiece clamping assembly of the present invention is connected to a movement control mechanism of the workpiece clamping assembly through a bracket 16 thereof, and the movement control mechanism of the workpiece clamping assembly includes a combination bearing and a power mechanism;

the combined bearing comprises a slewing bearing provided with an inner gear ring 1 and an outer gear ring 2 as shown in fig. 5, and a planet driving gear 13 and a planet driven gear 14 which are arranged on a planet support 12 in the inner gear ring 1 as shown in fig. 3, wherein the planet driving gear 13 is meshed with the planet driven gear 14, the planet driven gear 14 is meshed with the inner gear ring 1, the planet driving gear 13 drives the planet driven gear 14 arranged on the planet support 12, and the planet driven gear 14 rotates along with the fixed inner gear ring 1; as shown in fig. 4, an umbrella-shaped driving gear 15 is provided on the planet carrier 12, and 90 ° displacement transmission is realized.

The power mechanism comprises a first driving motor 9 and a second driving motor 10, an output shaft of the first driving motor 9 is connected with a main driving gear 11, the main driving gear 11 is meshed with the outer gear ring 2, and an output shaft of the second driving motor 10 is connected with the planet driving gear 13;

in another embodiment, as shown in fig. 6, a first fixing plate 7 is provided, the clamping assembly may also be connected with a motion control mechanism of a workpiece clamping assembly through the first fixing plate 7, the bracket 16 is fixed on one side of the first fixing plate 7, the other side of the first fixing plate 7 is fixedly connected with the outer ring gear 2 of the combination bearing, and a hole for the planet carrier 12 to pass through is provided on the first fixing plate 7; the planetary gear transmission mechanism is characterized in that a second fixing plate 8 is arranged, a first driving motor 9 and a second driving motor 10 are arranged on the second fixing plate 8, a hole for allowing an output shaft of the first driving motor 9 and an output shaft of the second motor 10 to penetrate through is further formed in the second fixing plate 8, the output shaft of the first driving motor 9 is connected with a main driving gear 11, the main driving gear 11 is meshed with the outer gear ring 2, and the output shaft of the second driving motor 10 is connected with a planetary driving gear 13.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention shall fall within the technical scope of the present invention.

Claims

1. A workpiece holding assembly, comprising:

the clamping assembly comprises a support (16) and a telescopic driving shaft, an upper clamp and a lower clamp which can slide relatively are arranged at two ends of the support (16) respectively, the upper clamp is provided with an upper workpiece rotating shaft (18), and the lower clamp is provided with a lower workpiece rotating shaft (19); the telescopic driving shaft is provided with an umbrella-shaped driven gear (20), and two ends of the telescopic driving shaft are respectively and rotatably connected with the upper workpiece rotating shaft (18) and the lower workpiece rotating shaft (19); the support (16) is provided with a sliding device for driving the upper clamp and the lower clamp to slide on the support (16).

2. The workpiece clamping assembly of claim 1, wherein: the upper clamp comprises an upper fixing plate (21), the upper fixing plate (21) is connected with the support (16) in a sliding mode, the upper fixing plate (21) is provided with an upper clamp support (23), one end of the upper clamp support (23) is provided with an upper driving wheel (25), the lower end of the upper driving wheel (25) is connected with the telescopic driving shaft, the other end of the upper clamp support (23) is provided with an upper driven wheel (26), and the lower end of the upper driven wheel (26) is connected with an upper workpiece rotating shaft (18); an upper transmission belt (27) is arranged between the upper end of the upper transmission wheel (25) and the upper end of the upper driven wheel (26), and the upper transmission wheel (25) drives the upper driven wheel (26) to rotate through the upper transmission belt (27) so as to drive the upper workpiece rotating shaft (18) to rotate;

the lower clamp comprises a lower fixing plate (22), the lower fixing plate (22) is connected with the support (16) in a sliding mode, the lower fixing plate (22) is provided with a lower clamp support (24), one end of the lower clamp support (24) is provided with a lower driving wheel (28), the upper end of the lower driving wheel (28) is connected with the telescopic driving shaft, the other end of the lower clamp support (24) is provided with a lower driven wheel (29), and the upper end of the lower driven wheel (29) is connected with the lower workpiece rotating shaft (19); a lower transmission belt (30) is arranged between the lower end of the lower transmission wheel (28) and the lower end of the lower driven wheel (29), and the lower transmission wheel (28) drives the lower driven wheel to rotate (29) through the lower transmission belt (30) so as to drive the lower workpiece rotating shaft (19) to rotate.

3. The workpiece clamping assembly of claim 2, wherein: the sliding device comprises a sliding rail (31) arranged on the bracket (16), and the upper fixing plate (21) and the lower fixing plate (22) are connected with the bracket (16) in a sliding manner through the sliding rail (31); a first rack (32) is fixedly arranged on the upper fixing plate (21), a second rack (33) is fixedly arranged on the lower fixing plate (22), and the first rack (32) is parallel to the second rack (33); the support is provided with a gear (34), the gear (34) is arranged between the first rack (32) and the second rack (33), and the lower end of the first rack (32) and the upper end of the second rack (33) are respectively meshed with two sides of the gear (34).

4. The workpiece clamping assembly of claim 3, wherein: the support (16) is provided with a driving device (35), the driving device (35) drives the upper clamp or the lower clamp to move, and the lower clamp or the upper clamp is driven by the combination of the first rack (32), the second rack (33) and the gear (34).

5. The workpiece clamping assembly of claim 4, wherein: the drive means (35) is a pneumatic cylinder.

6. The workpiece clamping assembly of claim 1, wherein: the telescopic drive shaft is a splined shaft (17).