Multi-stroke translation mechanism

Abstract

The utility model relates to a multi-stroke translation mechanism which comprises a machine base, at least one translation guide rail, a translation base, a pushing plate, at least two translation air cylinders and at least one extension spring, the translation guide rails are arranged on the machine base and move forwards and backwards, and translation sliding blocks capable of sliding forwards and backwards along the translation guide rails are installed on the translation guide rails. The translation seat is connected with the translation slide block; cylinder bodies of the translation air cylinders are installed on the translation base, piston rods of the translation air cylinders stretch out backwards, and the translation air cylinders have different strokes. The pushing plate is installed on the machine base and located behind the translation base, at least two buffers are installed on the front side face of the pushing plate, the number of the buffers is the same as that of the translation air cylinders, the buffers and the translation air cylinders are in one-to-one correspondence, and all the buffers correspond to piston rods of the corresponding translation air cylinders in position; front and rear ends of the extension spring are respectively connected with the translation seat and the base. According to the multi-stroke translation mechanism, multi-stroke node control can be achieved, and the requirements of different conveying distances can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic transmission equipment, and particularly relates to a multi-stroke translation mechanism. Background Art

[0002] Using a cylinder as the driving device of the translation mechanism has the characteristics of easy installation and simple and compact structure. However, since the piston rod of the cylinder can usually only switch between two positions (the piston rod extends or retracts), the existing translation mechanism driven by a cylinder has only a single stroke and cannot achieve multi-stroke node control to meet the requirements of different transmission distances. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a multi-stroke translation mechanism that can achieve multi-stroke node control and meet the requirements of different transmission distances. The adopted technical solutions are as follows:

[0004] A multi-stroke translation mechanism, characterized in that it includes a machine base, at least one translation guide rail, a translation seat, a push plate, at least two translation cylinders and at least one tension spring. The translation guide rails are all arranged on the machine base and run front to back. A translation slider that can slide back and forth along it is installed on the translation guide rail, and the translation seat is connected to the translation slider. The cylinder bodies of each translation cylinder are all installed on the translation seat, the piston rods of each translation cylinder all extend backward, and each translation cylinder has a different stroke. The push plate is installed on the machine base and is located behind the translation seat. At least two buffers are installed on the front side of the push plate. The number of buffers is the same as that of the translation cylinders and corresponds one by one. Each buffer corresponds to the position of the piston rod of the corresponding translation cylinder. The front and rear ends of the tension spring are respectively connected to the translation seat and the machine base.

[0005] The stroke of the translation cylinder refers to the round-trip running distance of the piston rod of the translation cylinder , that is, the distance from the front dead center to the rear dead center of the piston movement; each translation cylinder has a different stroke, that is, each The round-trip running distance of the piston rod of the translation cylinder is large and small and different

[0006] During operation, in the initial state, the piston rods of all translation cylinders are in the retracted state. Under the pulling force of the tension spring, the translation seat has a tendency to move closer to the push plate, causing the piston rods of the respective translation cylinders to contact the buffers corresponding to their positions on the push plate. When it is necessary to move the translation seat to a certain stroke node, the piston rod of the translation cylinder with the corresponding stroke can be extended backward. By applying a backward force to the push plate through the buffer corresponding to the position (the buffer retracts slightly after being impacted by the piston rod of the translation cylinder, reducing or eliminating the impact force of the piston rod of the translation cylinder on the push plate; then the buffer gradually extends and overcomes the pulling force of the tension spring to return to the initial position), the translation seat and the translation slider are translated forward along the translation guide rail by a corresponding distance to reach this stroke node. Since each translation cylinder has a different stroke, by controlling the extension of the piston rods of different translation cylinders, the translation seat can reach different stroke nodes. Therefore, this multi-stroke translation mechanism can achieve multi-stroke node control. It not only has a relatively compact overall structure and occupies a small installation space, but also can transfer the translation seat and the target object installed on the translation seat to different stroke nodes to meet the requirements of different transfer distances.

[0007] The number of the translation cylinders provided can be based on the above Multi-stroke translation mechanism to be conveyed Determined by the number of stroke nodes. For example, when there are 3 stroke nodes to be transferred, The number of the translation cylinders is 2; When there are 4 stroke nodes to be transferred, The number of the translation cylinders is 3 As a preferred embodiment of the present invention, the number of translation cylinders is two, namely the first translation cylinder and the second translation cylinder. The stroke of the first translation cylinder is greater than that of the second translation cylinder. Correspondingly, the number of buffers is two, namely the first buffer and the second buffer. The first buffer and the second buffer correspond to the piston rods of the first translation cylinder and the second translation cylinder respectively in terms of position.

[0008] As a preferred embodiment of the present invention, the buffer adopts an oil buffer.

[0009] As a preferred embodiment of the present invention, a plurality of translation guide rails are provided. The plurality of translation guide rails are arranged on the machine base in sequence from left to right. The translation seat is connected to the translation sliders on each translation guide rail. Thus, the forward and backward translation of the translation seat can be made more stable.

[0010] As a preferred embodiment of the present invention, at least one adjusting component is installed on the machine base. The position of the adjusting component in the front-rear direction is adjustable. The number of tension springs is the same as that of the adjusting components and they correspond one by one. The front end of the tension spring is connected to the translation seat, and the rear end of the tension spring is connected to the corresponding adjusting component. By adjusting the position of the adjusting component installed on the machine base in the front-rear direction, the tension spring has an appropriate pulling force.

[0011] As a further preferred solution of the present utility model, at least one adjusting component mounting plate is provided on the machine base, and at least one adjusting through hole extending in the front-rear direction is provided on the adjusting component mounting plate; the adjusting component includes an adjusting screw rod and two fixing nuts. The rear section of the adjusting screw rod is located in the corresponding adjusting through hole. The two fixing nuts are mounted on the adjusting screw rod and are respectively located on the front and rear sides of the adjusting component mounting plate. The two fixing nuts are respectively in close contact with the front side and the rear side of the adjusting component mounting plate. The front and rear ends of the tension spring are respectively connected to the translation seat and the front end of the corresponding adjusting screw rod.

[0012] As a further preferred solution of the present utility model, a connecting through hole is provided at the front end of the adjusting screw rod, and the rear end of the tension spring passes through the connecting through hole to achieve connection.

[0013] As a further preferred solution of the present utility model, a plurality of the adjusting components and a plurality of the tension springs are provided. The plurality of adjusting components are sequentially mounted on the machine base from left to right. The number of the tension springs is the same as that of the adjusting components and they are in one-to-one correspondence. The front and rear ends of the tension spring are respectively connected to the translation seat and the corresponding adjusting component. By providing a plurality of tension springs from left to right, the translation seat can be more evenly subjected to the pulling forces of the respective tension springs, so that the front-rear translation of the translation seat is more stable.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] This multi-stroke translation mechanism can apply an action to the pushing plate by the piston rod extension of cylinders with different strokes to drive the translation seat to translate reversely along the translation guide rail, realizing multi-stroke node control. Not only is the overall structure relatively compact and the occupied installation space is small, but also the translation seat and the target object mounted on the translation seat can be conveyed to different stroke nodes to meet the requirements of different conveying distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the multi-stroke translation mechanism of the preferred embodiment of the present utility model.

[0017] Figure 2 is Figure 1 a perspective view of

[0018] Figure 3 is a schematic state diagram of the multi-stroke translation mechanism of the preferred embodiment of the present utility model at the first stroke node.

[0019] Figure 4 is a schematic state diagram of the multi-stroke translation mechanism of the preferred embodiment of the present utility model at the second stroke node. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Such asFigures 1-4 As shown in the figure, this multi-stroke translation mechanism includes a machine base 1, a plurality of translation guide rails 2, a translation seat 3, a push plate 4, a first translation cylinder 5, a second translation cylinder 6, and a plurality of tension springs 7. Each translation guide rail 2 is arranged on the machine base 1 from left to right in sequence and all run in the front-back direction. A translation slider 21 capable of sliding back and forth along it is installed on the translation guide rail 2, and the translation seat 3 is connected to the translation sliders 21 on each translation guide rail 2. The cylinder block 51 of the first translation cylinder 5 and the cylinder block 61 of the second translation cylinder 6 are both installed on the translation seat 3. The piston rod 52 of the first translation cylinder 5 and the piston rod 62 of the second translation cylinder 6 both extend backward. The stroke of the first translation cylinder 5 is less than the stroke of the second translation cylinder 6. The push plate 4 is installed on the machine base 1 and is located behind the translation seat 3. A first oil buffer 41 and a second oil buffer 42 are installed on the front side surface of the push plate 4, and the first oil buffer 41 and the second oil buffer 42 respectively correspond to the positions of the piston rod 52 of the first translation cylinder 5 and the piston rod 62 of the second translation cylinder 6. A plurality of adjusting components 8 are installed on the machine base 1, and the positions of each adjusting component 8 in the front-back direction are adjustable. The number of tension springs 7 is the same as that of the adjusting components 8 and they correspond one by one. The front end of the tension spring 7 is connected to the translation seat 3, and the rear end of the tension spring 7 is connected to the corresponding adjusting component 8.

[0021] In this embodiment, a plurality of adjusting component mounting plates 9 are provided on the machine base 1, and each adjusting component mounting plate 9 is provided with two adjusting through holes running in the front-back direction (not shown in the figure); the adjusting component 8 includes an adjusting screw 81 and two fixing nuts 82. The rear section of the adjusting screw 81 is located in the corresponding adjusting through hole and meshes with the adjusting through hole. The two fixing nuts 82 are installed on the adjusting screw 81 and are respectively located on the front and rear sides of the adjusting component mounting plate 9. The two fixing nuts 82 are respectively in close contact with the front side surface and the rear side surface of the adjusting component mounting plate 9. The front and rear ends of the tension spring 7 are respectively connected to the translation seat 3 and the front end of the corresponding adjusting screw 81 (a connecting through hole 811 is provided at the front end of the adjusting screw 81, and the hook 71 at the rear end of the tension spring 7 passes through the connecting through hole 811 to achieve the connection). By providing a plurality of tension springs 7 from left to right, the translation seat 3 can be more evenly subjected to the pulling forces of each tension spring 7, so that the front-back translation of the translation seat 3 is more stable; by adjusting the position of the adjusting component 8 installed on the machine base 1 in the front-back direction, the tension spring 7 has an appropriate pulling force.

[0022] The working principle of this multi-stroke translation mechanism is briefly described below:

[0023] During operation, in the initial state, the piston rods 52 of the first translation cylinder 5 and the piston rods 62 of the second translation cylinder 6 are both in the retracted state. The translation seat 3 has a tendency to move closer to the push plate 4 under the pulling force of each tension spring 7, causing the piston rods 52 of the first translation cylinder 5 and the piston rods 62 of the second translation cylinder 6 to be in contact with the first oil buffer 41 and the second oil buffer 42 respectively. Refer to Figure 3 , when it is necessary to move the translation seat 3 to the first stroke node, the piston rod 52 of the first translation cylinder 5 can be extended backward. By applying a backward force to the push plate 4 through the first oil buffer 41 (after being impacted by the piston rod 52 of the first translation cylinder 5, the first oil buffer 41 slightly retracts to reduce or eliminate the impact force of the piston rod 52 of the first translation cylinder 5 on the push plate 4; then the first oil buffer 41 gradually extends and overcomes the pulling force of each tension spring 7 to return to the initial position), the translation seat 3 and the translation slider 21 are translated forward by a corresponding distance along the translation guide rail 2 to reach the first stroke node. Refer to Figure 4 , when it is necessary to move the translation seat 3 to the second stroke node, the piston rod 62 of the second translation cylinder 6 can be extended backward. By applying a backward force to the push plate 4 through the second oil buffer 42 (after being impacted by the piston rod 62 of the second translation cylinder 6, the second oil buffer 42 slightly retracts to reduce or eliminate the impact force of the piston rod 62 of the second translation cylinder 6 on the push plate 4; then the second oil buffer 42 gradually extends and overcomes the pulling force of each tension spring 7 to return to the initial position), the translation seat 3 and the translation slider 21 are translated forward by a corresponding distance along the translation guide rail 2 to reach the second stroke node, thereby meeting the requirements of different conveying distances.

[0024] In addition, it should be noted that for the specific embodiments described in this specification, the names of their respective parts, etc. can be different. Any equivalent or simple changes made according to the structure, features, and principles of the utility model patent concept are included in the protection scope of the utility model patent. Those skilled in the technical field to which the utility model belongs can make various modifications, supplements, or use similar methods to replace the specific embodiments described, as long as they do not deviate from the structure of the utility model or exceed the scope defined by this claim book, they should all fall within the protection scope of the utility model.

Claims

1. A multi-stroke translation mechanism, characterized in that: It includes a machine base, at least one translation guide rail, a translation seat, a push plate, at least two translation cylinders and at least one tension spring. The translation guide rails are all arranged on the machine base and run in the front-back direction. A translation slider that can slide back and forth along it is installed on the translation guide rail, and the translation seat is connected to the translation slider; the cylinder bodies of each translation cylinder are all installed on the translation seat, the piston rods of each translation cylinder all extend backward, and each translation cylinder has a different stroke; the push plate is installed on the machine base and is located behind the translation seat. At least two buffers are installed on the front side of the push plate. The number of buffers is the same as that of the translation cylinders and they correspond one by one. Each buffer corresponds to the position of the piston rod of the corresponding translation cylinder; the front and rear ends of the tension spring are respectively connected to the translation seat and the machine base.

2. The multi-stroke translation mechanism according to claim 1, characterized in that: The number of the translation cylinders is two, namely a first translation cylinder and a second translation cylinder. The stroke of the first translation cylinder is greater than that of the second translation cylinder; correspondingly, the number of the buffers is two, namely a first buffer and a second buffer. The first buffer and the second buffer respectively correspond to the positions of the piston rods of the first translation cylinder and the second translation cylinder.

3. The multi-stroke translation mechanism according to claim 1, characterized in that: The buffer adopts an oil pressure buffer.

4. The multi-stroke translation mechanism according to claim 1, characterized in that: The number of the translation guide rails is multiple, and the multiple translation guide rails are arranged on the machine base in sequence from left to right; the translation seat is connected to the translation sliders on each translation guide rail.

5. A multi-stroke translation mechanism according to any one of claims 1-4, characterized in that: At least one adjusting component is installed on the machine base. The position of the adjusting component in the front-back direction is adjustable. The number of the tension springs is the same as that of the adjusting components and they correspond one by one. The front end of the tension spring is connected to the translation seat, and the rear end of the tension spring is connected to the corresponding adjusting component.

6. The multi-stroke translation mechanism according to claim 5, wherein: At least one adjusting component mounting plate is provided on the machine base. The adjusting component mounting plate is provided with at least one adjusting through hole running in the front-back direction; the adjusting component includes an adjusting screw rod and two fixing nuts. The rear section of the adjusting screw rod is located in the corresponding adjusting through hole. The two fixing nuts are installed on the adjusting screw rod and are respectively located on the front and rear sides of the adjusting component mounting plate. The two fixing nuts are respectively in close contact with the front side and the rear side of the adjusting component mounting plate. The front and rear ends of the tension spring are respectively connected to the translation seat and the front end of the corresponding adjusting screw rod.

7. The multi-stroke translation mechanism according to claim 6, characterized in that: A connecting through hole is provided at the front end of the adjusting screw rod, and the rear end of the tension spring passes through the connecting through hole to achieve connection.

8. A multi-stroke translation mechanism according to claim 5, characterized in that: The number of the adjusting components and the tension springs is multiple. The multiple adjusting components are installed on the machine base in sequence from left to right. The number of the tension springs is the same as that of the adjusting components and they correspond one by one. The front and rear ends of the tension spring are respectively connected to the translation seat and the corresponding adjusting component.

Images