Four-connecting-rod parallelogram follow-up mechanism

Abstract

The utility model relates to the technical field of bending machine transmission, in particular to a four-connecting-rod parallelogram follow-up mechanism which comprises an A connecting rod machining part, a B connecting rod machining part, a C connecting rod machining part and a D connecting rod machining part. According to the four-connecting-rod parallelogram follow-up mechanism, parallelogram structures are always kept among rod pieces of a first rotating shaft front shaft of a connecting rod B, a fourth rotating shaft front shaft of the connecting rod B, a first rotating shaft front shaft of a connecting rod C and a second rotating shaft front shaft of the connecting rod C, so that the influence of horizontal bending and vertical bending of the rod pieces can be reduced; therefore, the reliability of the whole mechanism is improved; the movement of the parallelogram mechanism is very simple and only has one degree of freedom, so that the operation is simpler and more convenient; when the lengths of the rod pieces are equal, the parallelogram mechanism is in dynamic and static balance and can symmetrically support and transmit loads, so that the parallelogram mechanism can still keep stable under the condition of bearing large loads, and the stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machine transmission, in particular to a four-link parallelogram follower mechanism. Background Art

[0002] The follower support device plays an auxiliary role in the bending machine. It mainly follows the thrust of the power to support the sheet metal during the bending process to prevent the sheet metal from shifting or deforming during the bending process. The design and selection of the follower support device are mainly determined by the size and weight of the bent workpiece.

[0003] The rotating mechanism in the material support is a mechanical device that realizes the rotational transfer of materials. It can rotate the materials at a fixed angle to realize the transfer of materials from one position to another.

[0004] Different follower support devices have different structural forms and installation methods, so it is necessary to select a follower support device with a suitable structural form and installation method according to actual production needs. The existing follower support devices have the following disadvantages: 1) The follower mechanism is bulky, has poor mobility, and is very troublesome to operate; 2) It occupies a large space; 3) The follower mechanism itself occupies a large load. Utility Model Content

[0005] The technical problems to be solved by the utility model are: 1) the follower mechanism of the existing follower supporting device is heavy, has poor mobility and is very troublesome to operate; 2) it occupies a large space; 3) the follower mechanism itself occupies a large load.

[0006] The technical solution adopted by the utility model to solve the technical problem is: a four-link parallelogram follower mechanism, including an A-link processing part, a B-link processing part, a C-link processing part and a D-link processing part, wherein the A-link processing part is provided with an A-link rotating shaft front shaft inserted through an A-link processing part shaft hole, the B-link first rotating shaft front shaft, the B-link second rotating shaft front shaft, the B-link third rotating shaft front shaft and the B-link fourth rotating shaft front shaft inserted through an B-link processing part shaft hole, and the C-link processing part is provided with an A-link rotating shaft front shaft, a B-link second rotating shaft front shaft, a B-link third rotating shaft front shaft and a B-link fourth rotating shaft front shaft, and the C-link processing part is provided with an A-link rotating shaft front shaft, a B-link second rotating shaft front shaft, a B-link third rotating shaft front shaft and a B-link fourth rotating shaft front shaft, and the C-link processing part is provided with an A-link rotating shaft front shaft, a B-link first ... second The C-link first rotating axis front axle and the C-link second rotating axis front axle are inserted through the C-link processing part shaft hole, the D-link processing part is inserted with the D-link rotating axis front axle through the D-link processing part shaft hole, the A-link processing part is sleeved on the B-link third rotating axis front axle and the C-link second rotating axis front axle through the A-link processing part shaft hole, and is movably assembled with the B-link processing part and the C-link processing part respectively, and the D-link processing part is sleeved on the B-link third rotating axis front axle through the D-link processing part shaft hole and is movably assembled with the B-link processing part.

[0007] The A connecting rod rotating shaft front shaft is located outside the A connecting rod processing part, the B connecting rod first rotating shaft front shaft is located outside the B connecting rod processing part, the C connecting rod first rotating shaft front shaft is located outside the C connecting rod processing part, and the D connecting rod rotating shaft front shaft is located outside the D connecting rod processing part. There are axially sleeved gaskets.

[0008] A circular bearing seat is axially fixed on the front shaft of the A-link rotating shaft and located outside the gasket.

[0009] The first rotating axis front axle of the B-link, the third rotating axis front axle of the B-link and the fourth rotating axis front axle of the B-link are located on both sides of the B-link processed part, the first rotating axis front axle of the C-link is located on the inner side of the C-link processed part, the second rotating axis front axle of the C-link is located on the outer side of the C-link processed part, and the front axle of the D-link rotating axis is located on the inner side of the D-link processed part. A diamond-shaped bearing seat is axially sleeved on each of the axles.

[0010] The B connecting rod processing part and the diamond-shaped bearing seat, the C connecting rod processing part and the diamond-shaped bearing seat, and the D connecting rod processing part and the diamond-shaped bearing seat are all fixed and assembled by hexagon socket cylindrical head screws.

[0011] The first rotating axis front axle of the B link, the front axle of the D link, the front axle of the A link and the first rotating axis front axle of the C link are of the same length, and the third rotating axis front axle of the B link, the fourth rotating axis front axle of the B link and the second rotating axis front axle of the C link are of the same length.

[0012] The beneficial effects of the utility model are:

[0013] (1) The parallelogram structure is always maintained between the first rotation axis front axis of the B-link, the fourth rotation axis front axis of the B-link, the first rotation axis front axis of the C-link and the second rotation axis front axis of the C-link of the four-link parallelogram follower mechanism of the utility model, which can reduce the influence of horizontal bending and vertical bending of the rods, thereby improving the reliability of the entire mechanism;

[0014] (2) The movement of the parallelogram mechanism is very simple, with only one degree of freedom, which makes the operation simpler and more convenient;

[0015] (3) When the lengths of the rods are equal, the parallelogram mechanism is in dynamic and static equilibrium and can symmetrically support and transfer loads. This allows the parallelogram mechanism to remain stable even when subjected to large loads and has high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2It is the front view of the utility model.

[0019] Figure 3 It is a side view of the utility model. DETAILED DESCRIPTION

[0020] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Figure 1 , Figure 2 and Figure 3 The four-link parallelogram follower mechanism shown in the figure comprises an A-link processing part 1, a B-link processing part 2, a C-link processing part 3 and a D-link processing part 4, wherein the A-link rotating shaft front shaft 11 is inserted into the A-link processing part 1 through the A-link processing part shaft hole, the B-link first rotating shaft front shaft 21, the B-link second rotating shaft front shaft 22, the B-link third rotating shaft front shaft 23 and the B-link fourth rotating shaft front shaft 24 are inserted into the B-link processing part 2 through the B-link processing part shaft hole, and the C-link processing part 3 is inserted into the C-link processing part shaft hole. It is equipped with a C-link first rotating axis front axle 31 and a C-link second rotating axis front axle 32, the D-link rotating axis front axle 41 is inserted into the D-link processing part 4 through the D-link processing part axial hole, the A-link processing part 1 is sleeved on the B-link third rotating axis front axle 23 and the C-link second rotating axis front axle 32 through the A-link processing part axial hole, and is movably assembled with the B-link processing part 2 and the C-link processing part 3 respectively, and the D-link processing part 4 is sleeved on the B-link third rotating axis front axle 23 through the D-link processing part axial hole and is movably assembled with the B-link processing part 2.

[0023] A gasket 5 is axially sleeved on the A connecting rod rotating shaft front shaft 11, located on the outside of the A connecting rod processed part 1; the B connecting rod first rotating shaft front shaft 21, located on the outside of the B connecting rod processed part 2; the C connecting rod first rotating shaft front shaft 31, located on the outside of the C connecting rod processed part 3; and the D connecting rod rotating shaft front shaft 41, located on the outside of the D connecting rod processed part 4.

[0024] A circular bearing seat 6 is axially fixed on the front shaft 11 of the A connecting rod rotating shaft and located outside the backing ring 5.

[0025] A diamond-shaped bearing seat 7 is axially sleeved on the B-link first rotating axis front axle 21, the B-link third rotating axis front axle 23 and the B-link fourth rotating axis front axle 24, which are located on both sides of the B-link processed part 2, the C-link first rotating axis front axle 31 is located on the inner side of the C-link processed part 3, the C-link second rotating axis front axle 32 is located on the outer side of the C-link processed part 3, and the D-link rotating axis front axle 41 is located on the inner side of the D-link processed part 4.

[0026] The B connecting rod processing part 2 and the diamond-shaped bearing seat, the C connecting rod processing part 3 and the diamond-shaped bearing seat, and the D connecting rod processing part 4 and the diamond-shaped bearing seat are all fixed and assembled by hexagon socket cylindrical head screws 8.

[0027] The B-link first rotating shaft front axle 21, the D-link rotating shaft front axle 41, the A-link rotating shaft front axle 11 and the C-link first rotating shaft front axle 31 have the same length, and the B-link third rotating shaft front axle 23, the B-link fourth rotating shaft front axle 24 and the C-link second rotating shaft front axle 32 have the same length.

[0028] Function: The B connecting rod processing part 2 and the C connecting rod processing part 3 are fixed to the lifting platform of the follower supporting device, and one end of the D connecting rod processing part 4 is connected and fixed to the frame of the follower supporting device. When the B connecting rod processing part 2 is subjected to force, it moves upward, driving the D connecting rod processing part 4, the A connecting rod processing part 1 follows the movement, and the C connecting rod processing part 3 moves with the A connecting rod processing part 1 to reach a certain working angle.

[0029] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A four-link parallelogram follower mechanism, comprising an A-link processing part (1), a B-link processing part (2), a C-link processing part (3) and a D-link processing part (4), characterized in that: The A connecting rod processing part (1) is provided with an A connecting rod rotating shaft front shaft (11) inserted through the A connecting rod processing part shaft hole, the B connecting rod first rotating shaft front shaft (21), the B connecting rod second rotating shaft front shaft (22), the B connecting rod third rotating shaft front shaft (23) and the B connecting rod fourth rotating shaft front shaft (24) are inserted through the B connecting rod processing part shaft hole, and the C connecting rod processing part (3) is provided with a C connecting rod first rotating shaft front shaft (31) and a C connecting rod second rotating shaft front shaft (32) inserted through the C connecting rod processing part shaft hole. 32), the D connecting rod processing part (4) is provided with a D connecting rod rotating shaft front shaft (41) inserted through the D connecting rod processing part shaft hole, the A connecting rod processing part (1) is sleeved on the B connecting rod third rotating shaft front shaft (23) and the C connecting rod second rotating shaft (32) front shaft through the A connecting rod processing part shaft hole, and is movably assembled with the B connecting rod processing part (2) and the C connecting rod processing part (3) respectively, and the D connecting rod processing part (4) is sleeved on the B connecting rod third rotating shaft front shaft (23) through the D connecting rod processing part shaft hole, and is movably assembled with the B connecting rod processing part (2).

2. The four-bar parallelogram follower mechanism according to claim 1, characterized in that: The front axle (11) of the A connecting rod rotating shaft is located outside the A connecting rod processed part (1), the front axle (21) of the B connecting rod first rotating shaft is located outside the B connecting rod processed part (2), the front axle (31) of the C connecting rod first rotating shaft is located outside the C connecting rod processed part (3), and the front axle (41) of the D connecting rod rotating shaft is located outside the D connecting rod processed part (4) are all axially sleeved with gaskets (5).

3. The four-bar parallelogram follower mechanism according to claim 2, characterized in that: A circular bearing seat (6) is axially fixed on the front shaft (11) of the A-link rotating shaft and located outside the gasket (5).

4. The four-bar parallelogram follower mechanism according to claim 1, characterized in that: The first rotating shaft front shaft (21) of the B-link, the third rotating shaft front shaft (23) of the B-link and the fourth rotating shaft front shaft (24) of the B-link are located on both sides of the B-link processed part (1), the first rotating shaft front shaft (31) of the C-link is located on the inner side of the C-link processed part (3), the second rotating shaft front shaft (32) of the C-link is located on the outer side of the C-link processed part (3), and the rotating shaft front shaft (41) of the D-link is located on the inner side of the D-link processed part (4) and are all axially sleeved with a diamond-shaped bearing seat (7).

5. The four-bar parallelogram follower mechanism according to claim 4, characterized in that: The B connecting rod processing part (2) and the diamond-shaped bearing seat, the C connecting rod processing part (3) and the diamond-shaped bearing seat, and the D connecting rod processing part (4) and the diamond-shaped bearing seat are all fixedly assembled by means of hexagon socket head screws (8).

6. The four-bar parallelogram follower mechanism according to claim 1, characterized in that: The B-link first rotating shaft front axle (21), the D-link rotating shaft front axle (41), the A-link rotating shaft front axle (11) and the C-link first rotating shaft front axle (31) have the same length, and the B-link third rotating shaft front axle (23), the B-link fourth rotating shaft front axle (24) and the C-link second rotating shaft front axle (32) have the same length.

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