CN108772678B - Integrated two-stage progressive lifting device, processing method thereof and pressure loss prevention component press-fitting machine - Google Patents

Abstract

The invention discloses an integrated secondary progressive lifting device, a processing method thereof and a pressure loss prevention component press-fitting machine, wherein the integrated secondary progressive lifting device comprises a substrate, a primary lifting device is arranged on the substrate and can drive a material tray on a conveying line to lift and keep a gap with the conveying line, a secondary lifting device driven to lift by the primary lifting device is arranged on the primary lifting device, and the secondary lifting device can drive a first component on the material tray to lift and keep a gap with the material tray. This scheme design is exquisite, simple structure, breaks away from and the component breaks away from with the charging tray through the separation of two-stage jacking structure realization charging tray and transfer chain to effectively avoid the pressure equipment power to the damage of transfer chain and charging tray, simultaneously, very big reduction second grade lifting device's jacking stroke, thereby reduce second grade lifting device's overall structure, reduced second grade lifting device's part cost and installation space requirement, two-stage jacking mechanism's organic combination, the integrated level is high, stability is good.

Description

Integrated two-stage progressive lifting device, processing method thereof and pressure loss prevention component press-fitting machine

Technical Field

The invention relates to jacking equipment, in particular to an integrated two-stage progressive lifting device, a processing method thereof and a pressure loss prevention component press-fitting machine.

Background

At present, in the field of automatic production lines for assembling automobile engines and new energy motors, assembly operation for pressing a first component into a second component frequently occurs, when the assembly is performed, the second component is usually placed on a tray, and after the tray is conveyed to a pressing position along with a conveying line (roller line), the first component is axially pressed into the second component on the tray by a pressing machine.

The conventional press-fitting operation directly carries out press-fitting on the conveying line, and at the moment, certain damage is easily generated to the conveying line due to the fact that the press-fitting pressure is high; some structures which adopt jacking equipment to jack up a tray and separate the conveying line before press fitting and then press fitting are adopted, and the structure is effective in protecting the conveying line, but the structure still cannot avoid damage of the press fitting force to the tray in the press fitting process, and deformation of the tray is not beneficial to ensuring the press fitting precision.

If the problem of preventing the tray from being pressed is to be solved, the corresponding jacking structure is needed to be combined again to separate the component from the tray, which causes a certain problem:

1. two independent jacking structures require that the stroke of the secondary jacking cylinder must overcome the motion stroke of the primary jacking cylinder, so that the stroke of the secondary jacking cylinder is overlarge, and the purchasing cost of the cylinder is high.

2. The large stroke of the cylinder requires a large installation space, which makes it inconvenient to use for some production lines and sites with small space.

3. Because the pressure equipment is in the jacking state when the pressure equipment, the pressure equipment power is all applyed on the piston rod of cylinder, and the problem that the holding strength can not be guaranteed often exists to the holding power of cylinder, is unfavorable for guaranteeing the pressure equipment precision, also easily makes the piston rod of cylinder take place deformation scheduling problem simultaneously, causes the cylinder to damage.

Finally, in order to facilitate the operation, the material taking function is often required to be combined, and the existing mode is to increase an independent material taking structure to cooperate with the jacking structure, so that the occupied space and the number of parts of the whole equipment are further increased, the integration level of the equipment is low, interference is easy to occur between the structures, and the equipment is inconvenient to assemble.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides an integrated secondary progressive lifting device, a processing method thereof and a pressure loss prevention component press-fitting machine, wherein the two-stage jacking is used for separating a material tray from a conveying line and separating components from the material tray so as to avoid damage to the conveying line and the material tray during press-fitting, and the secondary jacking stroke is reduced through a structure of driving the secondary jacking through the primary jacking.

The aim of the invention is achieved by the following technical scheme:

the integrated secondary progressive lifting device comprises a substrate, a primary lifting device is arranged on the substrate, a tray on a conveying line can be driven to lift and keep a gap with the conveying line, a secondary lifting device driven to lift by the primary lifting device is arranged on the primary lifting device, and a first component on the tray can be driven to lift and keep a gap with the tray by the secondary lifting device.

Preferably, in the integrated secondary progressive lifting device, the primary lifting device comprises a jacking cylinder arranged on the base plate, a top plate parallel to the base plate is arranged on a piston rod of the jacking cylinder, and a group of ejector rods matched with positioning grooves at the bottom of the material tray are arranged on the top plate.

Preferably, in the integrated secondary progressive lifting device, the base plate is provided with a set of guide members, and the top plate is provided with a set of guide rods which are slidably inserted into the guide members.

Preferably, in the integrated secondary progressive lifting device, the secondary lifting device comprises a lifting cylinder fixed on the top plate, a piston rod of the lifting cylinder is connected with a sleeve assembly through a transmission plate, and the sleeve assembly penetrates through the base plate and the top plate and can slide relative to the base plate and the top plate.

Preferably, in the integrated two-stage progressive lifting device, the direction of the piston rod of the lifting cylinder is opposite to the direction of the piston rod of the lifting cylinder, and the piston rod of the lifting cylinder is in an extended state in a normal state.

Preferably, the integrated secondary progressive lifting device further comprises a supporting component for supporting the sleeve component which is jacked by the secondary, wherein the supporting component comprises a wedging groove formed on the sleeve component and a wedge block which can be inserted into the wedging groove, and the wedge block is slidably positioned on a plane parallel to the base plate.

Preferably, in the integrated secondary progressive lifting device, the supporting assembly further comprises a limiting block for guiding the wedge block.

Preferably, the integrated secondary progressive lifting device comprises a material taking assembly, the material taking assembly comprises a driving device connected with the sleeve assembly, the driving device is connected with a material taking rod and drives the material taking rod to slide reciprocally along the inner cavity of the sleeve assembly, and the top of the material taking rod can extend out to the upper side of the sleeve assembly and penetrate through the first component.

The processing method of the integrated two-stage progressive lifting device comprises the following steps of:

s1, a piston rod of a jacking cylinder ejects a driving top plate to enable a material tray to be lifted and separated from a conveying line, and a secondary lifting device is driven to be lifted to a preset height;

s2, a piston rod of the stretching cylinder is retracted, and the sleeve assembly is driven to lift up so that a first component on the material tray is lifted and separated from the material tray;

s3, the wedge blocks of the supporting components move into the wedging grooves;

and S4, the material taking rod of the material taking assembly extends out of the sleeve assembly to enable the second component to be inserted into the sleeve assembly and then fall back.

Prevent pressure loss component pressure equipment machine, including the two grade lifting device that advances of arbitrary integration form of above-mentioned, still include

A conveying line for conveying the tray with the first member to the upper part of the integrated secondary progressive lifting device;

the feeding robot is used for suspending the second component above the integrated secondary progressive lifting device;

and the press-fit assembly is used for press-fitting the second component into the first component.

The technical scheme of the invention has the advantages that:

this scheme design is exquisite, simple structure, break away from through two-stage jacking structure, the one-level lifting device realizes the separation of charging tray and transfer chain, the separation of component and charging tray is realized to the second grade lifting device, thereby when follow-up pressure equipment, can effectively avoid the damage of pressure equipment power to transfer chain and charging tray, simultaneously, the second grade lifting device is driven by one-level lifting device, consequently, the second grade lifting device need not overcome the motion stroke of one-level lifting device, the jacking stroke of second grade lifting device that reduces that can be very big, thereby reduce the overall structure of second grade lifting device, the component cost and the installation space requirement of second grade lifting device have been reduced, the organic combination of two-level jacking mechanism, the integrated level is high, stability is good.

The lifting cylinder is reversely arranged at the bottom of the top plate and is in an extending state in a normal state, so that the installation space is further reduced, the equipment structure is more compact and miniaturized, meanwhile, the space interference with the supporting component is avoided, and the inheritance and the assembly of the equipment are facilitated.

The support component can provide effectual support for the sleeve component when the pressure equipment, does not receive the influence of cylinder holding power, is favorable to guaranteeing the stability and the reliability of pressure equipment, and simultaneously when the pressure equipment, the pressure equipment force is concentrated and is applyed on the voussoir and can not produce great pressure to the piston rod of cylinder, is favorable to alleviateing the adverse effect to the piston rod.

The material taking assembly is organically combined with the secondary lifting device, and on the basis of realizing automatic material taking, the material taking rod moves in the sleeve assembly without additional moving installation space, so that occupied space is reduced, meanwhile, the material taking assembly moves synchronously with the sleeve assembly, the formation of movement of the driving device is avoided, the equipment cost is reduced, and the integration level and compactness of the equipment are further improved.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a side cross-sectional view of the present invention;

fig. 3 is a side view of the present invention.

Detailed Description

The objects, advantages and features of the present invention are illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the technical scheme of the invention, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the invention.

In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the scheme, the direction approaching the operator is the near end, and the direction separating from the operator is the far end, with reference to the operator.

The integrated secondary progressive lifting device disclosed by the invention is described below with reference to the accompanying drawings, and as shown in fig. 1, the integrated secondary progressive lifting device comprises a substrate 1, a primary lifting device 2 is arranged on the substrate 1 and can drive a tray 10 on a conveying line to lift and keep a gap with the conveying line, a secondary lifting device 3 driven to lift by the primary lifting device 2 is arranged on the primary lifting device 2, and the secondary lifting device 3 can drive a first component 20 on the tray 10 to lift and keep a gap with the tray 10.

In detail, as shown in fig. 1, the primary lifting device 2 includes a lifting cylinder 21 disposed on a base plate 1, a piston rod 211 of the lifting cylinder 21 vertically penetrates through the base plate 1, and a top of the lifting cylinder is connected to an adapter 27 at the bottom of a top plate 22 through a connecting piece 26, and the connecting piece 26 is in a bolt shape and is clamped with the adapter 27, so that the lifting device can be quickly assembled or disassembled; the top plate 22 is parallel to the base plate 1, a group of top rods 23 are arranged on the top plate 22, the top rods 23 are preferably 4 and are distributed in a rectangular shape, the tops of the top rods are in a boss shape or a round table shape, the top rods are matched with the positioning grooves 101 at the bottom of the material tray 10, and the positioning grooves are in a concave shape.

Of course, in other embodiments, the top plate 22 of the primary lifting device may be driven by other driving devices or structures, such as an oil cylinder, an electric cylinder, etc., and the driving device may be disposed above the top plate 22, so that the top plate 22 is lifted by pulling upward, which is not described herein.

In order to avoid that the ejector rod 23 cannot be accurately positioned with the positioning groove 101 due to the left-right movement of the base plate 1, as shown in fig. 1, a set of guide members 24, for example, a shaft sleeve, is provided on the base plate 1, and a set of guide rods 25 slidably inserted into the guide members 24 are provided on the top plate 22.

Further, as shown in fig. 1, the secondary lifting device 3 includes a lifting cylinder 31 fixed on the top plate 22, a piston rod of the lifting cylinder 31 is connected with a sleeve assembly 33 through a transmission plate 32, a connection disc 331 is formed on an outer peripheral wall of the sleeve assembly 33, the transmission plate 32 is connected with the connection disc 331, the sleeve assembly 33 vertically penetrates through the base plate 1 and the top plate 22 and can slide relative to them, the length of the sleeve assembly 33 is greater than the stroke of the lifting cylinder and the stroke of the lifting cylinder, and when the lifting cylinder is lifted twice, the top of the sleeve assembly 33 extends above the upper surface of the material tray 10.

In a preferred embodiment, as shown in fig. 1, the lifting cylinder 31 is directly fixed at the bottom of the top plate 22, and the direction of the piston rod of the lifting cylinder 21 is opposite to that of the piston rod of the lifting cylinder 31, that is, the piston rod of the lifting cylinder 31 is downward, and the piston rod of the lifting cylinder 21 is in an extended state in a normal state. Of course, in other embodiments, the lifting cylinder 31 may be fixed below the top plate 22 by a supporting frame (not shown), and the piston rod thereof faces upward, where the piston rod thereof is normally in an extended state, but in this structure, the lifting cylinder 31 interferes with an installation space of the supporting assembly 4 described below.

Similarly, the sleeve assembly 33 may be driven to slide up and down by other power structures, such as an oil cylinder, an electric cylinder, etc., which will not be described herein.

Besides, the transfer plate 331 and the driving plate 32 may not be fixedly connected, so that the driving plate 32 is mounted below the transfer plate 331, and when not lifted, the driving plate 32 is kept in contact with the transfer plate 331, and when lifted, the sleeve assembly 33 is moved upwards by the position limitation between the driving plate 32 and the transfer plate 32, and when the driving plate 32 moves downwards, the sleeve assembly 33 can fall under the dead weight, so that the rapid assembly and disassembly of the device are more convenient.

In the above-mentioned two-stage progressive jacking structure, when the pressure is fully applied to the piston rods of the jacking cylinder and the pulling cylinder, since the supporting force of the cylinders is limited, in order to ensure the reliability of the support, as shown in fig. 1 and fig. 2, the integrated two-stage progressive jacking device further comprises a support assembly 4 for providing support to the sleeve assembly 33 which is jacked by the two stages, and the integrated two-stage progressive jacking device comprises a wedging groove 41 formed on the sleeve assembly 33 and a wedge block 42 which can be inserted into the wedging groove 41, wherein the wedge block 42 is slidably located on a plane 43 parallel to the base plate 1, and the plane 43 is the upper surface of a flat plate arranged on the base plate 1.

In a possible embodiment, as shown in fig. 1 and fig. 3, a groove is formed on the circumferential wall of the sleeve assembly 33 at opposite positions, and the wedge 42 is in a matched U-shaped block structure or a fork structure, so that each fork of the wedge 42 can be inserted into one groove; in another possible embodiment, a pair of coaxial through holes may be formed in the circumferential wall of the sleeve assembly 33, the wedge 42 is shaped to match the two through holes, and the wedge may integrally penetrate the pair of through holes to support the sleeve assembly.

The wedge 42 is preferably driven by a cylinder 45 as shown in fig. 2, but it is needless to say that it may be driven by various other devices capable of reciprocating in a linear direction, such as an oil cylinder, an electric cylinder, a linear guide, and the like.

Further, as shown in fig. 2 and 3, the support assembly 4 further includes a limiting block 44 for guiding the wedge block 42, the limiting block 44 is disposed on the flat plate and sleeved on the outer shaft of the sleeve assembly 33, the limiting block 44 cooperates with the flat surface 43 to form a sliding linear channel 46 of the wedge block 42, and an outer side wall of the wedge block 32 is attached to an inner wall of the linear channel 46.

Further, to achieve automatic material taking, as shown in fig. 1, the integrated secondary progressive lifting device further includes a material taking assembly 5 for receiving the second member 30 to be press-fitted into the first member 20 suspended above and moving it from a high position to a low position in the central hole of the first member 20.

As shown in fig. 1 and 2, the material taking assembly 5 includes a driving device 51 connected to the sleeve assembly 33, where the driving device 51 is preferably a cylinder, but may also be an oil cylinder, etc., and a piston rod 511 of the cylinder is inserted into a central through hole 332 of the sleeve assembly 33, where the piston rod 511 of the cylinder is connected to a material taking rod 52 and drives the material taking rod 52 to slide reciprocally along the inner cavity of the sleeve assembly 33, and a top of the material taking rod 52 may extend above the sleeve assembly 33 and pass through the first member 20, and a top of the material taking rod 52 is a sleeve 521 matched with a lower end of the second member, and a lower end of the second member 30 may be inserted into the sleeve.

In the running process of the device, the start-stop and the working state switching of each cylinder can be controlled by combining various sensors with a PLC system, and of course, the control can also be performed in other modes, which is a known technology and is not repeated here.

The invention also discloses a pressure loss prevention component press-fitting machine, which comprises the integrated secondary progressive lifting device, a conveying line (not shown in the figure), a feeding robot (not shown in the figure) and a press-fitting component (not shown in the figure), wherein the conveying line is used for conveying the material tray 10 with the first component 20 to the upper part of the integrated secondary progressive lifting device, is positioned above the integrated secondary lifting device, and can be a known various conveying lines, such as two belt conveying lines or roller conveying lines which are equal in height and keep gaps, and the like, and the description is omitted herein.

The feeding robot is configured to suspend the second member 30 that is grabbed by the feeding robot above the integrated secondary progressive lifting device, and make the second member 30 coaxial with the sleeve assembly 33, where the second member may be a combination of various manipulators and a structure for driving the manipulators to move, and the structure for driving the manipulators to move may be a 6-axis moving robot, an XYZ three-axis moving module, and the like, which are not described herein again.

The press-fit assembly is used to press-fit the second member 30 into the first member 20, and may be any of a variety of possible devices or structures, which are not described in detail herein.

When the pressure loss prevention component press-fitting machine works, the process is that the conveying line conveys a material tray 10 with a first component 20 to the position right above the integrated secondary progressive lifting device to stop conveying, and meanwhile, the feeding robot hangs a second component 30 above the integrated secondary progressive lifting device.

S1, a piston rod 211 of a jacking cylinder 21 of the first lifting device 2 is ejected to drive a top plate 22 on the jacking cylinder to be lifted upwards, a group of ejector rods 23 on the top plate 22 are inserted into a positioning groove at the bottom of a material tray 10 by the lifting of the top plate 22, so that the material tray 10 is driven to be lifted, and the material tray 10 is separated from a conveying line after being lifted; the top plate 22 is lifted and drives the lifting cylinder 31 to move upwards, the lifting cylinder 31 drives the sleeve assembly 33 to move upwards to a preset height as a whole, and the sleeve assembly 33 moves upwards and drives the material taking assembly 5 to move upwards as a whole.

S2, the piston rod 311 of the stretching cylinder 31 of the second lifting device 3 is retracted, so as to drive the sleeve assembly 33 to further lift and contact with the bottom of the first member 20 on the tray 1, and as the sleeve assembly 33 is continuously lifted, the first member 20 is continuously lifted and separated from the tray 10.

S3, the cylinder shaft 451 of the cylinder 45 of the support assembly 4 extends out of the driving wedge 42, moves toward the wedging groove 41, and is inserted into the wedging groove 41.

And S4, after the piston rod 511 of the air cylinder of the material taking assembly 5 extends out, the material taking rod 52 is driven to extend out of the sleeve assembly and move to the bottom of the second member 30, and the second member 30 is inserted into the sleeve at the upper end of the sleeve assembly, the piston rod 511 of the air cylinder is retracted, and the second member 30 is moved to the central through hole of the first member 20.

The press-fit assembly is started to press the second member 30 into the first member 20 to complete assembly, and then the above components are reversed to reset and wait for the next assembly.

The invention has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the invention.

Claims (5)

1. Integrated form second grade lifting device that advances, its characterized in that: the lifting device comprises a substrate (1), wherein a primary lifting device (2) is arranged on the substrate (1) and can drive a material tray (10) on a conveying line to lift and keep a gap with a conveying line, a secondary lifting device (3) driven to lift by the primary lifting device is arranged on the primary lifting device (2), and the secondary lifting device (3) can drive a first component (20) on the material tray (10) to lift and keep a gap with the material tray (10);

the secondary lifting device (3) comprises a lifting cylinder (31) fixed on the top plate (22), wherein a piston rod of the lifting cylinder (31) is connected with a sleeve assembly (33) through a transmission plate (32), and the sleeve assembly penetrates through the base plate (1) and the top plate (22) and can slide relative to the base plate and the top plate;

the direction of the piston rod of the lifting cylinder (31) is opposite to the direction of the piston rod of the jacking cylinder (21), and the piston rod of the lifting cylinder (31) is in an extending state in a normal state;

the device further comprises a support assembly (4) for supporting the sleeve assembly (33) which is lifted by the second stage, wherein the support assembly comprises a wedging groove (41) formed on the sleeve assembly (33) and a wedge block (42) which can be inserted into the wedging groove (41), and the wedge block (42) is slidably positioned on a plane (43) parallel to the base plate (1); the support assembly (4) further comprises a limiting block (44) for guiding the wedge block (42);

the device comprises a sleeve assembly (33), and is characterized by further comprising a material taking assembly (5), wherein the material taking assembly (5) comprises a driving device (51) connected with the sleeve assembly (33), the driving device (51) is connected with a material taking rod (52) and drives the material taking rod (52) to slide back and forth along the inner cavity of the sleeve assembly (33), and the top of the material taking rod (52) can extend out to the upper side of the sleeve assembly (33) and penetrate through a first component.

2. The integrated two-stage progressive lifting device of claim 1, wherein: the primary lifting device (2) comprises a lifting cylinder (21) arranged on a base plate (1), a top plate (22) parallel to the base plate (1) is arranged on a piston rod (211) of the lifting cylinder (21), and a group of ejector rods (23) matched with positioning grooves (101) at the bottom of the material tray (10) are arranged on the top plate (22).

3. The integrated two-stage progressive lifting device of claim 2, wherein: the base plate (1) is provided with a group of guide pieces (24), and the top plate (22) is provided with a group of guide rods (25) which are slidably inserted into the guide pieces (24).

4. The method for processing the integrated two-stage progressive lifting device according to claim 1, wherein the method comprises the following steps: the method comprises the following steps:

s1, a piston rod of a jacking cylinder ejects a driving top plate to enable a material tray to be lifted and separated from a conveying line, and a secondary lifting device is driven to be lifted to a preset height;

s2, a piston rod of the stretching cylinder is retracted, and the sleeve assembly is driven to lift up so that a first component on the material tray is lifted and separated from the material tray;

s3, the wedge blocks of the supporting components move into the wedging grooves;

and S4, the material taking rod of the material taking assembly extends out of the sleeve assembly to enable the second component to be inserted into the sleeve assembly and then fall back.

5. Prevent pressure loss component pressure equipment machine, its characterized in that: an integrated two-stage progressive lifting device as recited in any one of claims 1-3, further comprising

A conveying line for conveying the tray with the first member to the upper part of the integrated secondary progressive lifting device;

the feeding robot is used for suspending the second component above the integrated secondary progressive lifting device;

and the press-fit assembly is used for press-fitting the second component into the first component.

Images