CN210476083U

CN210476083U - Multi-station clamping mechanism

Info

Publication number: CN210476083U
Application number: CN201921283786.7U
Authority: CN
Inventors: 王军
Original assignee: Kunshan Jiangrun Electronics Co ltd
Current assignee: Kunshan Jiangrun Electronics Co ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-08
Anticipated expiration: 2029-08-09

Abstract

The utility model provides a multistation clamping mechanism, it includes rotating assembly, is located rotating assembly outlying fixed subassembly, be fixed in a plurality of centre gripping subassemblies on the rotating assembly and being fixed in at least one on the rotating assembly pushes away the subassembly, rotating assembly includes carousel and drive carousel pivoted driving piece, push away the subassembly including being fixed in the fixing base of carousel and install in the wheel that pushes away of fixing base, the centre gripping subassembly including be fixed in fixing assembly last positioning seat and with positioning seat movable mounting's movable block, the positioning seat with one of them or the common location chamber that is used for acceping the work piece that forms of movable block. Through rotatory pushing assembly, can make pushing assembly constantly push clamping component, make the position that first work piece location was formulated, can let robotic arm fix a position the second location very easy quick find the position that needs placed, cover mechanism simple structure can be fit for the location of a plurality of process equipment.

Description

Multi-station clamping mechanism

Technical Field

The utility model relates to an automatic production line equipment especially relates to there is a multistation clamping mechanism.

Background

With the economic development, each production factory gradually leads into an automatic production line to improve the production efficiency and reduce the labor cost. Some components are often assembled by multiple processes, and for the same component, the assembling processes or procedures are different, so that the working efficiency is greatly reduced. At present, the process stations of most production lines are arranged in a straight line from front to back, which can improve the production efficiency, but how to improve the production efficiency is a subject of continuous research of each factory.

For example, in 2018, 20/11/78, chinese patent publication No. CN108840045A discloses a bar conveyor with a clamping mechanism, which includes a rotary conveying table, a plurality of bar clamps are distributed on a disc surface of the rotary conveying table and along the periphery of the rotary conveying table at intervals, and a motor for driving the rotary conveying table to rotate is arranged at the bottom of the rotary conveying table; the device is characterized by further comprising a clamping mechanism, the clamping mechanism comprises an ejector rod and a transverse pushing cylinder, a through hole is formed in the side wall of the bar clamp, the transverse pushing cylinder is arranged on the rotary conveying table and connected with the ejector rod, the transverse pushing cylinder drives the ejector rod to move, and the end portion of the ejector rod extends into the through hole to tightly push the bar in the bar clamp. Because the equipment adopts the structure, the working mode of linear type assembly line operation is changed into the circular rotary type assembly line operation mode, and the occupation of the field space can be greatly reduced. But the clamping mode is completed by the pushing air cylinder, if the number of the working positions is very large, the required pushing air cylinder needs more, and the design increases the production cost.

In view of this, the present invention provides a new multi-station clamping mechanism to overcome some of the problems of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a multistation clamping mechanism that work efficiency is high, with low costs.

In order to achieve the above object, the utility model discloses a technical scheme be: the utility model provides a multistation clamping mechanism, its includes rotating assembly, is located rotating assembly outlying fixed subassembly, be fixed in a plurality of centre gripping subassemblies on the rotating assembly and be fixed in at least one on the rotating assembly pushes away the subassembly, rotating assembly includes carousel and drive carousel pivoted driving piece, push away the subassembly including being fixed in the fixing base of carousel and install in the wheel that pushes away of fixing base, the centre gripping subassembly including be fixed in on the fixed subassembly positioning seat and with positioning seat movable mounting's movable block, the positioning seat with one of them or the common formation of movable block is used for acceping the location chamber of work piece.

The fixed assembly is provided with a circular fixed table and an accommodating cavity positioned in the center of the fixed table, and the rotating assembly is positioned in the accommodating cavity.

The pushing assembly is also provided with a limiting seat which is arranged on the turntable and is positioned on the periphery of the fixed seat.

The fixed seat is provided with an accommodating groove formed by sinking from the front end of the fixed seat and a pair of support lugs positioned on two sides of the accommodating groove, a rotating shaft is installed on each support lug, and the pushing wheels are accommodated in the accommodating grooves and installed on the rotating shaft.

The positioning seat and the movable block are provided with a first accommodating hole and a second accommodating hole which are oppositely arranged, the first accommodating hole and the second accommodating hole accommodate a movable shaft and a spring sleeved on the movable shaft together, the movable shaft is fixed on the positioning seat and is slidably mounted with the movable block, and two ends of the spring are respectively abutted against the positioning seat and the movable block.

The first accommodating hole penetrates through the front surface and the rear surface of the positioning seat, and an installation block used for limiting the movable shaft is fixed on the rear surface of the positioning seat.

The driving piece comprises a motor and a speed reducer, the motor is located below the rotating assembly, the speed reducer is connected with the motor, and an output shaft of the speed reducer is connected with the turntable.

Compared with the prior art, the utility model discloses multistation clamping mechanism's beneficial effect: through rotatory pushing assembly, can make pushing assembly constantly push clamping component, make the position that first work piece location was formulated, can let robotic arm fix a position the second location very easy quick find the position that needs placed, cover mechanism simple structure can be fit for the location of a plurality of process equipment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural view of a part to be clamped by the multi-station clamping mechanism of the present invention;

FIG. 2 is a three-dimensional assembly structure diagram of the multi-station clamping mechanism of the present invention;

FIG. 3 is a perspective view of the clamping assembly shown in FIG. 2;

FIG. 4 is a side cross-sectional view of the clamping assembly shown in FIG. 3;

fig. 5 is a perspective view of the pushing assembly in fig. 2.

Detailed Description

The present invention will be described in detail below with reference to the drawings, but it should be emphasized that the following embodiments are merely illustrative and are not intended to limit the scope and application of the present invention.

Referring to fig. 2 to 5, the present invention is a multi-station clamping mechanism, which includes a rotating assembly 1, a fixing assembly 2 located at the periphery of the rotating assembly 1, a plurality of clamping assemblies 3 fixed on the rotating assembly 1, and at least one pushing assembly 4 fixed on the rotating assembly 2. The number of the clamping assemblies 3 and the pushing assemblies 4 is determined according to the station requirement. In this embodiment, there are four holding assemblies 3 and two pushing assemblies 4. As shown in figure 1, the components to be clamped and installed by the multi-station clamping mechanism cable of the utility model are gear assemblies.

As shown in fig. 2, the fixing assembly 2 has a circular fixing table 21 and a receiving cavity 22 located at the center of the fixing table 21, and the rotating assembly 1 is located in the receiving cavity 22.

The rotating assembly 1 comprises a rotating disc 11 and a driving part 12 for driving the rotating disc 11 to rotate, the driving part 12 comprises a motor 121 positioned below the rotating disc 11 and a speed reducer 122 connected with the motor 121, and an output shaft of the speed reducer 122 is connected with the rotating disc 11. The motor 121 rotates to drive the turntable 11 to rotate at a constant speed.

As shown in fig. 5, the pushing assembly 4 includes a fixing seat 41 fixed on the turntable 11, a pushing wheel 42 mounted on the fixing seat 41, and a limiting seat 43 mounted on the turntable 11 and located at the periphery of the fixing seat 41. The pushing wheel 42 is positioned beyond the turntable 11. The fixing seats 41 are respectively and uniformly distributed on the rotating disc 11, the fixing seats 41 are provided with accommodating grooves 411 formed by recessing from the front ends of the fixing seats, and a pair of supporting lugs 412 positioned at two sides of the accommodating grooves 411, a rotating shaft 413 is installed on the supporting lugs 412, and the pushing wheel 42 is accommodated in the accommodating grooves 411 and is installed on the rotating shaft 413.

As shown in fig. 3 to 4, the clamping assembly 3 is used for clamping each part of the process, and includes a positioning seat 31 fixed on the fixed table 21 of the fixed assembly 2 and a movable block 32 movably mounted with the positioning seat 31, and one or both of the positioning seat 31 and the movable block 32 form a positioning cavity 30 for receiving a workpiece. The positioning cavity is used for accommodating parts to be assembled, and the parts can be positioned to a preset position by moving the positioning block 32. The formation of the positioning cavity 30 structure can be determined according to actual needs, in this example, the positioning cavity 30 is arranged on the positioning seat 31, and after moving through the movable block 32, the parts are fixed; in other embodiments, the positioning cavity 30 may be disposed on the movable block 32, and the positioning seat 31 and the movable block 32 fix the component by moving the movable block 32. Of course, the positioning cavities 30 may also be distributed on the positioning seat 31 and the movable block 32, respectively, so that when the positioning seat 31 is combined with the movable block 32, a complete positioning cavity 30 is formed.

The positioning seat 31 and the movable block 32 are provided with a first receiving hole 311 and a second receiving hole 321 which are oppositely arranged, the first receiving hole 311 and the second receiving hole 321 together receive a movable shaft 33 and a spring 34 sleeved on the movable shaft 33, the movable shaft 33 is fixed on the positioning seat 31 and is slidably mounted with the movable block 32, two ends of the spring 34 respectively abut against the positioning seat 31 and the movable block 32, and when the spring 34 is in a free state, a seam is formed between the positioning seat 31 and the movable block 32. In order to be fixed to the movable shaft 33 and the mounting spring 34, the first receiving hole 311 penetrates through the front and rear surfaces of the positioning seat 31, and the mounting block 35 for limiting the movable shaft 33 is fixed to the rear surface of the positioning seat 31. The movable shaft 33 is fixed to the mounting block 35 by a fixing member. The second receiving hole 321 also penetrates the movable block 32, and the movable block 32 can slide along the movable shaft 33. The positioning seat 31 may be provided with a slide groove (not shown), and the movable block 32 is accommodated in the slide groove, and the movable block 32 can slide in the slide groove by applying an external force.

During operation, initial state, positioning seat 31 and movable block 32 are free state, put into constant head tank 30 through robotic arm with the first work piece of work piece, treat rotating assembly 1 to centre gripping subassembly 3, when rotating assembly 1 was rotatory, push away the surperficial contact of wheel 42 and movable block 32, set up the transition surface through the side that sets up movable block 32 surface, can let movable block 32 and push away the smooth contact of wheel 42. The pushing wheel 42 is used for pushing the movable block 32, the movable block 32 slides towards the positioning seat 31, the movable block 32 pushes the workpiece to the positioning groove 30, the rotating speed of the rotating assembly 2 is very low, the pushing wheel 42 is abutted against the movable block 32 for 2-10 seconds, and a second workpiece is clamped on a first workpiece by the mechanical arm and sleeved into the first workpiece. The movable block 32 is pressed at all times during this phase, so that the position of the first workpiece is very precise and the second workpiece is very easy to mount quickly on the first workpiece. When the two workpieces are assembled, the pushing wheel 42 continues to roll forward, the movable block 32 is rebounded to the initial position under the action of the spring 34, and the mechanical arm takes away the assembled workpiece clamp. The pushing wheel 42 pushes the lower movable block 32 forward. Because the pushing wheel 42 is continuously moved to complete the pressing, the mechanical arm can meet the fetching and placing of a plurality of workpieces, and the efficiency is very high. The utility model discloses set up 2 and push subassembly 4, its aim at need not to wait to push 4 rotatory rounds of subassembly back extrudees again when first pushing 4 location to the work piece, pushes 4 through next and just can accomplish the extrusion. And the extrusion is carried out by two pushing assemblies 4, so that the efficiency is higher.

Of course, those skilled in the art should realize that the above-mentioned embodiments are only used for illustrating the present invention, and not for limiting the present invention, and that the changes and modifications to the above-mentioned embodiments are all within the scope of the appended claims as long as they are within the true spirit of the present invention.

Claims

1. The utility model provides a multistation clamping mechanism which characterized in that: the clamping device comprises a rotating assembly, a fixing assembly, a plurality of clamping assemblies and at least one pushing assembly, wherein the fixing assembly is positioned on the periphery of the rotating assembly, the clamping assemblies are fixed on the rotating assembly, the pushing assembly is fixed on the rotating assembly, the at least one pushing assembly is fixed on the rotating assembly, the rotating assembly comprises a turntable and a driving piece for driving the turntable to rotate, the pushing assembly comprises a fixing seat fixed on the turntable and a pushing wheel arranged on the fixing seat, the clamping assembly comprises a positioning seat fixed on the fixing assembly and a movable block movably arranged with the positioning seat, and one of the positioning seat and the movable block or the two of the positioning seat and the movable block form a positioning cavity for.

2. The multi-station clamping mechanism of claim 1, wherein: the fixed assembly is provided with a circular fixed table and an accommodating cavity positioned in the center of the fixed table, and the rotating assembly is positioned in the accommodating cavity.

3. The multi-station clamping mechanism of claim 1, wherein: the pushing assembly is also provided with a limiting seat which is arranged on the turntable and is positioned on the periphery of the fixed seat.

4. The multi-station clamping mechanism of claim 1, wherein: the fixed seat is provided with an accommodating groove formed by sinking from the front end of the fixed seat and a pair of support lugs positioned on two sides of the accommodating groove, a rotating shaft is installed on each support lug, and the pushing wheels are accommodated in the accommodating grooves and installed on the rotating shaft.

5. The multi-station clamping mechanism of claim 1, wherein: the positioning seat and the movable block are provided with a first accommodating hole and a second accommodating hole which are oppositely arranged, the first accommodating hole and the second accommodating hole accommodate a movable shaft and a spring sleeved on the movable shaft together, the movable shaft is fixed on the positioning seat and is slidably mounted with the movable block, and two ends of the spring are respectively abutted against the positioning seat and the movable block.

6. The multi-station clamping mechanism of claim 5, wherein: the first accommodating hole penetrates through the front surface and the rear surface of the positioning seat, and an installation block used for limiting the movable shaft is fixed on the rear surface of the positioning seat.

7. The multi-station clamping mechanism of claim 1, wherein: the driving piece comprises a motor and a speed reducer, the motor is located below the rotating assembly, the speed reducer is connected with the motor, and an output shaft of the speed reducer is connected with the turntable.