CN213318580U

CN213318580U - Following fixture lifting and positioning device

Info

Publication number: CN213318580U
Application number: CN202021980897.6U
Authority: CN
Inventors: 冯志鹏; 杨林; 陈周生
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-01
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a pallet lifting positioning device, including base, roller bed frame, first direction subassembly, second direction subassembly, first locating component, translation subassembly, lifting unit and the subassembly of ventilating, first direction subassembly with second direction subassembly sets up respectively the front portion and the rear portion of the vertical central line of roller bed frame and with the base is detachable fixed, first locating component bilateral symmetry set up in the periphery left and right sides of roller bed frame and with the base is detachable fixed, the translation subassembly with the roller bed frame is detachable fixed, the top of lifting unit with the detachable roll connection of roller bed frame. The utility model discloses a pallet lifting and positioning device simple structure, the stability of guaranteeing the pallet body, the qualification rate that improves the white automobile body and the work load that reduces the problem investigation.

Description

Following fixture lifting and positioning device

Technical Field

The utility model relates to an automobile production line equipment technical field especially relates to a pallet lifting and positioning device.

Background

On an automobile welding production line, flexible production of automobile models is one of manufacturing strategies adopted by various automobile manufacturers. Pallet body skid conveying system is to install pallet bodies of different vehicle types on a skid, namely, to install pallet bodies of different vehicle types on the skid as much as possible. Automobile parts such as a white automobile body are fixed on the skid by the aid of the follower fixture body and are conveyed from one station to another station through conveying of the rolling machine. Wherein on some very key stations such as carrying out parts loading or welding to the white automobile body, the location precision requirement to the white automobile body on the pallet body is very high, directly influences the white automobile body qualification rate, consequently need go up and down the location to the pallet body for carrying the white automobile body device on these stations.

The following anchor clamps of prior art lift positioner, the locate mode to the following anchor clamps body is different, satisfies the accurate positioning to the following anchor clamps body basically, but still has following problem:

1. the consistency of the pallet body. On an automobile welding production line, more than several sets or twenty following fixture bodies are normally arranged, each set of following fixture body corresponds to one automobile type, and the consistency of each set of following fixture body is difficult to ensure;

2. at the station of installation lift positioner, the accurate positioning of all pallet body is guaranteed, just must guarantee the steady state of pallet body, and what various motorcycle types switched used upset anchor clamps generally adopted is the form of auto-lock cylinder. The self-locking cylinder generally only ventilates the pallet body at the thread end or the thread tail, and the pallet body can keep a certain state when the air is cut off, but the self-locking force is insufficient to cause small dislocation after the pallet body runs for a plurality of cycles. In production, due to the fact that instantaneous force of sudden start of a white automobile body is too large or a self-locking cylinder is unstable, small dislocation which cannot be seen by naked eyes usually can affect the qualified rate of white automobile body parts of the automobile body, the pallet body cannot be ventilated in the working process to correct dislocation, and slight dislocation of the pallet body is caused to be one of factors which affect the qualified rate fluctuation of the white automobile body.

Disclosure of Invention

The utility model relates to a solve not enough among the prior art and accomplish, the utility model aims at providing a simple structure, guarantee the pallet body the stability, improve the qualification rate of white automobile body and reduce the pallet lift positioner of the work load of problem investigation.

The utility model discloses a pallet lifting and positioning device, which comprises a base, a roller bed frame, a first guide component, a second guide component, a first positioning component, a translation component, a lifting component and a ventilation component, wherein the first guide component is arranged at the front part of the longitudinal central line of the roller bed frame, the bottom of the first guide component is detachably fixed with the base, the top of the first guide component is detachably abutted against the front guide plate of the pallet body, the second guide component is arranged at the rear part of the longitudinal central line of the roller bed frame, the bottom of the second guide component is detachably fixed with the base, the top of the second guide component is detachably clamped and fixed with the rear guide plate of the pallet body, the first positioning component is arranged at the left and right sides of the periphery of the roller bed frame symmetrically and is detachably fixed with the base, the first positioning assembly can be detachably abutted with the fixture supporting block on the follower fixture body, the translation assemblies are arranged on the left side and the right side of the inner periphery of the roller machine frame in a bilateral symmetry mode, the left end and the right end of the translation assemblies are detachably fixed with the roller machine frame, the top of each translation assembly is detachably abutted with the bottom of the follower fixture body, the bottom of each lifting assembly and the corresponding ventilation assembly are arranged inside the roller machine frame and detachably fixed with the corresponding base, the top of each lifting assembly is detachably connected with the roller machine frame in a rolling mode, and the ventilation assemblies are detachably communicated with the air cylinders of the follower fixture body.

The utility model discloses a pallet lifting and positioning device can also be:

the first guide assembly comprises two guide bearings, the two guide bearings are respectively arranged on the left side and the right side of the front part of the longitudinal central line of the roller bed frame and detachably fixed with the base, and the inner sides of the peripheries of the guide bearings are respectively offset with the left side and the right side of the front guide plate in a releasable manner.

The second guide assembly comprises a positioning pin, the positioning pin is arranged at the rear part of the longitudinal central line of the rolling machine frame and detachably fixed with the base, and the positioning pin is detachably clamped and fixed with the rear guide plate.

The pin hole is detachably fixed on the rear guide plate, and the positioning pin is detachably clamped and fixed with the pin hole.

The first positioning component comprises six rolling machine supporting blocks which are bilaterally symmetrical and detachably fixed at the front part, the middle part and the rear part of the left side and the right side of the rolling machine frame, the clamp supporting blocks are arranged at corresponding positions of the rolling machine supporting blocks, and the rolling machine supporting blocks and the clamp supporting blocks can be detachably abutted.

The base is provided with the benchmark hole that is used for measuring the pallet body position in six the outside of rolling bed supporting shoe.

The translation subassembly includes translation motor, horizontal equidistant detachable being fixed in the inside at least three translation driven shaft of rolling bed frame, adjacent two all connect through the translation belt transmission of vertical setting between the translation driven shaft, the translation belt with the bottom releasable counterbalance of pallet body, one of them the translation driven shaft with translation motor's motor shaft meshing is connected, the translation motor is detachable to be fixed in the outside of rolling bed frame.

The lifting assembly comprises a lifting motor, two lifting driven shafts and cam bearings, the two lifting driven shafts are symmetrically arranged on the front side and the rear side of the roller machine frame in a front-back mode, the cam bearings are arranged on the left side and the right side of the lifting driven shafts, the inner peripheries of the cam bearings are detachably fixed with the lifting driven shafts, the outer peripheries of the cam bearings are detachably connected with the roller machine frame in a rolling mode, and the two lifting driven shafts are connected with a motor shaft of the lifting motor through a lifting belt in a transmission mode.

And the central positions of the two lifting driven shafts are provided with detection sheet groups for monitoring the height of the follower fixture body.

The base is respectively arranged at the rear of the first guide component and in front of the second guide component and is detachably fixed with a guide rod, and the roller machine frame slides up and down along the length direction of the guide rod and is in detachable sliding connection with the guide rod.

The utility model discloses a pallet lifting and positioning device, which comprises a base, a roller bed frame, a first guide component, a second guide component, a first positioning component, a translation component, a lifting component and a ventilation component, wherein the first guide component is arranged at the front part of the longitudinal central line of the roller bed frame, the bottom of the first guide component is detachably fixed with the base, the top of the first guide component is detachably abutted against the front guide plate of the pallet body, the second guide component is arranged at the rear part of the longitudinal central line of the roller bed frame, the bottom of the second guide component is detachably fixed with the base, the top of the second guide component is detachably clamped and fixed with the rear guide plate of the pallet body, the first positioning component is arranged at the left and right sides of the periphery of the roller bed frame symmetrically and is detachably fixed with the base, the first positioning assembly can be detachably abutted with the fixture supporting block on the follower fixture body, the translation assemblies are arranged on the left side and the right side of the inner periphery of the roller machine frame in a bilateral symmetry mode, the left end and the right end of the translation assemblies are detachably fixed with the roller machine frame, the top of each translation assembly is detachably abutted with the bottom of the follower fixture body, the bottom of each lifting assembly and the corresponding ventilation assembly are arranged inside the roller machine frame and detachably fixed with the corresponding base, the top of each lifting assembly is detachably connected with the roller machine frame in a rolling mode, and the ventilation assemblies are detachably communicated with the air cylinders of the follower fixture body. Thus, the top of the translation assembly is in releasable abutment with the pallet body, the bottom of the translation assembly is detachably fixed on the inner periphery of the roller machine frame, when the translation assembly operates, the translation assembly translates the pallet body from the previous station to the current station by using friction force, when an electric control program detects that the pallet body reaches the preset position of the current station, the translation assembly is controlled to stop operating, the pallet body stops at the centering position of the current station immediately, then the lifting assembly operates to drive the roller machine frame to descend, because the translation assembly is detachably fixed on the roller machine frame, the descending of the roller machine frame drives the translation assembly to descend, the pallet body also descends, and when the pallet descends, the first guide assembly is in releasable abutment with the front guide plate, after the second guide assembly and the rear guide plate are clamped and fixed in a releasable manner, the fixture supporting block is tightly attached to the first positioning assembly, so that the position of the pallet body is fixed, the roller machine frame continues to descend, so that the translation assembly and the pallet body are released from abutting, at the moment, an electronic control program displays that the pallet body is locked, then the position of the pallet body is measured, parts such as a white vehicle body carried in the pallet body are welded and loaded, and the like, after the process is finished, the lifting assembly operates to drive the roller machine frame to ascend, so that the roller machine frame continues to ascend after the translation assembly abuts against the pallet body, and when the electronic control program displays that the pallet body is separated from abutting and clamping with the first guide assembly and the second guide assembly, and starting the translation assembly, and transmitting the pallet body to the next station by the friction force generated by the translation assembly. In this station, operations requiring high precision, such as loading and welding, are generally performed on the parts carried by the pallet body. When the pallet body is in the operation process, the inertia of the pallet body and the quick start and stop are added, and the air cylinder ventilated at the long time part has the risk of loosening, so that the positioning position of the pallet body is influenced, and the qualified rate of parts on the pallet body is unstable. The ventilation assembly enables the pallet body to be in a ventilation state during working of the station, if the pallet body is unstable due to instability of the self-locking cylinder and the transportation process, the self-locking cylinder is ventilated to enable the pallet body to be stable all the time in the transportation process, the pallet body and the measurement process are in the same state, consistency of different pallet bodies is guaranteed, the qualification rate of white bodies is improved, and workload of problem troubleshooting is reduced. The utility model discloses a pallet lifting and positioning device, the advantage for prior art is: the structure is simple, the stability of the follower fixture body is ensured, the qualification rate of the body-in-white is improved, and the workload of problem troubleshooting is reduced.

Drawings

Fig. 1 the utility model relates to a pallet lifting and positioning device schematic structure.

Fig. 2 the utility model relates to a pallet lifting and positioning device top view.

Fig. 3 the utility model relates to a pallet lifting and positioning device pallet body schematic diagram.

Fig. 4 the utility model relates to a pallet lifting and positioning device fig. 3A bottom view.

Fig. 5 the utility model relates to a pallet lifting and positioning device, fig. 3B is a bottom view.

Fig. 6 the utility model relates to a pallet lifting and positioning device guiding bearing and preceding deflector overlap joint picture.

Fig. 7 the utility model relates to a pallet lifting and positioning device anchor clamps supporting shoe and rolling machine supporting shoe overlap joint picture.

Fig. 8 the utility model relates to a pallet lifting positioning device locating pin and back deflector overlap joint picture.

Fig. 9 the utility model relates to a pallet lifting positioning device lifting assembly sketch.

Fig. 10 is a schematic view of a ventilation assembly of a pallet lifting and positioning device.

Fig. 11 the utility model relates to a pallet lifting and positioning device pallet body and measuring table clamp overlap joint picture.

Description of the figures

1 … base 2 … roller bed frame 3 … guide bearing

4 … locating pin 5 … roller bed support block 6 … front guide plate

7 … back deflector 8 … pinhole 9 … anchor clamps support block

10 … reference hole 11 … translation driven shaft 12 … translation motor

13 … translation belt 15 … lift motor 16 … vent assembly

17 … guide rod 18 … follower clamp body 19 … cam bearing

20 … lifting belt 21 … lifting driven shaft 22 … detection sheet set

23 … measuring table clamp

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not 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.

The utility model discloses a pallet lifting positioning device is with guide bearing 3 is in the front side, locating pin 4 is in the rear side, roll bed frame 2 is in the inboard, translation motor 12 is in the outside to confirm the direction of "preceding", "back", "interior", "outer" with this.

The following describes a pallet lifting and positioning device according to the present invention in further detail with reference to fig. 1 to 11 of the drawings.

The utility model discloses a pallet goes up and down to positioner please refer to relevant each picture in 1 to 11, including base 1, roller bed frame 2, first direction subassembly, second direction subassembly, first locating component, translation subassembly, lifting unit and subassembly 16 of ventilating, first direction subassembly sets up roller bed frame 2's vertical central line is anterior just the bottom of first direction subassembly with base 1 is detachable fixed, the top of first direction subassembly and pallet 6 of pallet body 18 can remove the formula and offset, the second direction subassembly sets up roller bed frame 2's vertical central line rear portion just the bottom of second direction subassembly with base 1 is detachable fixed, the top of second direction subassembly with pallet body 18's back deflector 7 can remove formula joint fixed, first direction subassembly bilateral symmetry set up in roller bed frame 2's the periphery left and right sides and with base 1 can remove the formula joint fixed The detachable type fixing device is characterized in that the detachable type fixing device is detachably fixed, the first positioning assembly is detachably abutted with the fixture supporting block 9 on the follower fixture body 18, the translation assemblies are arranged on the left side and the right side of the inner periphery of the roller machine frame 2 in a bilateral symmetry mode, the left end and the right end of the inner periphery of the roller machine frame 2 are detachably fixed with the roller machine frame 2, the top of each translation assembly is detachably abutted with the bottom of the follower fixture body 18, the bottom of each lifting assembly and the ventilation assembly 16 are arranged inside the roller machine frame 2 and detachably fixed with the base 1, the top of each lifting assembly is detachably connected with the roller machine frame 2 in a rolling mode, and the ventilation assembly 16 is detachably communicated with the cylinder of the follower fixture body 18. Thus, the top of the translation component can be in releasable contact with the pallet body 18, the bottom of the translation component is detachably fixed on the inner periphery of the roller machine frame 2, when the translation component operates, the translation component translates the pallet body 18 from the previous station to the current station by using friction force, when an electric control program detects that the pallet body 18 reaches the preset position of the current station, the translation component is controlled to stop operating, the pallet body 18 stops at the centering position of the current station, then the lifting component operates to drive the roller machine frame 2 to descend, because the translation component is detachably fixed on the roller machine frame 2, the descending of the roller machine frame 2 drives the translation component to descend, the pallet body 18 also descends, and when the first guide component descends, the first guide component can be in releasable contact with the front guide plate 6, after the second guide assembly and the rear guide plate 7 are in releasable clamping fixation, the fixture support block 9 is tightly attached to the first positioning assembly, so that the position of the pallet body 18 is fixed, the roller bed frame 2 continues to descend, so that the translation assembly and the pallet body 18 are released from abutting, at the moment, the electric control program displays that the pallet body 18 is locked, then the position of the pallet body 18 is measured, parts such as a white vehicle body carried in the pallet body 18 are welded, loaded and the like, after the process is finished, the lifting assembly operates to drive the roller bed frame 2 to ascend, so that the roller bed frame 2 continues to ascend after the translation assembly abuts against the pallet body 18, and when the electric control program displays that the pallet body 18 abuts against the first guide assembly, When the second guide assembly is separated from abutting and clamping, the translation assembly is started, and the pallet body 18 is transmitted to the next station by the friction force generated by the translation assembly. In this station, operations requiring high precision, such as loading and welding, are generally performed on the parts carried by the pallet body 18. In the operation process of the pallet body 18, the inertia of the pallet body 18 and the quick start and stop are added, and the air cylinder ventilated at the long time part has the risk of loosening, so that the positioning position of the pallet body 18 is influenced, and the qualified rate of parts on the pallet body 18 is unstable. The ventilation assembly 16 enables the pallet body 18 to be in a ventilation state during working at the station, if the pallet body 18 is unstable due to instability of the self-locking cylinder and the transportation process, the self-locking cylinder is ventilated to enable the pallet body 18 to be always stable in the transportation process, the pallet body 18 is ensured to be in the same state with the measurement process, the consistency of different pallet bodies 18 is ensured, the qualification rate of white cars is improved, and the workload of problem troubleshooting is reduced. The utility model discloses a pallet lifting and positioning device, the advantage for prior art is: the structure is simple, the stability of the pallet body 18 is ensured, the qualification rate of the body-in-white is improved, and the workload of problem troubleshooting is reduced.

The utility model discloses a pallet lifting and positioning device, please refer to relevant each picture in fig. 1 to 11, can also be on the basis of preceding technical scheme: the first guide assembly comprises two guide bearings 3, wherein the two guide bearings 3 are respectively arranged on the left side and the right side of the front part of the longitudinal central line of the roller machine frame 2 and detachably fixed with the base 1, and the inner sides of the peripheries of the two guide bearings 3 are respectively offset with the left side and the right side of the front guide plate 6 in a releasable manner. Thus, the two guide bearings 3 are detachably fixed on the base 1 at the left side and the right side of the front part of the longitudinal center line of the roller bed frame 2, when the pallet body 18 falls down, the left side and the right side of the front guide plate 6 arranged on the pallet body 18 are respectively and detachably abutted against the guide bearings 3 at the left side and the right side of the longitudinal center line, the left surface and the right surface of the front guide plate 6 along the length direction thereof are tightly clamped between the two guide bearings 3, the displacement of the pallet body 18 is limited in the Y direction, the front part of the pallet body 18 is prevented from being relatively displaced with the base 1 in the Y direction, and the stability of the front part of the pallet body 18 is further ensured. Further preferably, the distance between the contact points of the two guide bearings 3 and the front guide plate 6 is 0.1-0.15mm larger than the width of the front guide plate 6. Like this, two facades about preceding deflector 6 are in when pallet body 18 falls down can smoothly respectively with two of left and right sides guiding bearing 3 can remove the formula counterbalance, promptly preceding deflector 6 joint is in two between guiding bearing 3, two guiding bearing 3 makes pallet body 18's anterior deviation can not be greater than 0.15mm, has guaranteed pallet body 18's anterior location precision.

The utility model discloses a pallet lifting and positioning device, please refer to relevant each picture in fig. 1 to 11, can also be on the basis of preceding technical scheme: the second direction subassembly includes locating pin 4, locating pin 4 set up in roll bed frame 2 longitudinal center line rear portion and with base 1 is detachable fixed, locating pin 4 with the detachable joint of back deflector 7 is fixed. Thus, when the pallet body 18 falls down, the positioning pin 4 is detachably clamped and fixed with the rear guide plate 7, the rear part of the pallet body 18 is detachably fixed with the rear part of the base 1, the X direction and the Y direction limit the rear side of the pallet body 18 to deviate from the base 1, and the stability of the rear part of the pallet body 18 is further ensured. Further preferred technical scheme does the detachable pinhole 8 that is fixed with on the back deflector 7, locating pin 4 with the detachable joint of pinhole 8 is fixed. Like this, pinhole 8 is detachable to be fixed on back deflector 7, locating pin 4 with 8 joints of pinhole make the rear portion of pallet body 18 with the joint position of base 1 is more accurate, upwards has limited in X to and Y the rear side of pallet body 18 with base 1 takes place the skew, and then has guaranteed the stability at pallet body 18 rear portion. More preferably, the inner diameter of the pin hole 8 is 0.1-0.15mm larger than the outer diameter of the positioning pin 4. Therefore, the pin hole 8 and the positioning pin 4 can be smoothly clamped and fixed, the pin hole 8 limits the displacement of the positioning pin 4 in the X direction and the Y direction to be 0.1-0.15mm, and the maximum displacement cannot exceed 0.15mm, so that the positioning accuracy of the follow-up fixture body 18 is ensured.

The utility model discloses a pallet lifting and positioning device, please refer to relevant each picture in fig. 1 to 11, can also be on the basis of preceding technical scheme: the first positioning component comprises six rolling machine supporting blocks 5 which are bilaterally symmetrical and detachably fixed at the front part, the middle part and the rear part of the left side and the right side of the rolling machine frame 2, the clamp supporting blocks 9 are arranged at the corresponding positions of the rolling machine supporting blocks 5, and the rolling machine supporting blocks 5 and the clamp supporting blocks 9 can be in releasable abutting. Thus, after the pallet body 18 falls down, the bottom of the fixture supporting block 9 is tightly attached to the top of the roller bed supporting block 5, the roller bed supporting block 5 supports the fixture supporting block 9 to prevent the pallet body 18 from moving downwards along the Z direction, the pallet body 18 cannot move upwards along the Z direction due to the action of gravity when not overcoming the gravity of the pallet body 18, and the pallet supporting block 5 limits the pallet body 18 and the base 1 to move relatively in the Z direction, so that the stability of the pallet body 18 in the Z direction is ensured. According to a further preferable technical scheme, the base 1 is provided with reference holes 10 used for measuring the positions of the pallet bodies 18 on the outer sides of the six roller bed supporting blocks 5. In this way, the first guide assembly and the second guide assembly limit the position of the pallet body 18 in the X direction and the Y direction, the first positioning assembly limits the position of the pallet body 18 in the Z direction, the pallet body 18 and the base 1 do not undergo relative displacement through the first guide assembly, the second guide assembly and the first positioning assembly, then a three-coordinate system is established at the position corresponding to the reference hole 10 by using the measuring table fixture 23, the three-coordinate measuring arm is used for measuring the pallet body 18, and the process is also a re-inspection process for all pallet bodies 18 at the station, so that the yield of white bodies is improved, and the workload of problem troubleshooting is reduced.

The utility model discloses a pallet lifting and positioning device, please refer to relevant each picture in fig. 1 to 11, can also be on the basis of preceding technical scheme: the translation subassembly includes translation motor 12, horizontal equidistant detachable being fixed in 2 inside at least three translation driven shafts 11 of rolling bed frame, adjacent two all connect through the transmission of the translation belt 13 of vertical setting between the translation driven shaft 11, translation belt 13 with the bottom of follower fixture body 18 can be relieved formula and offset, one of them translation driven shaft 11 with the motor shaft meshing of translation motor 12 is connected, translation motor 12 is detachable to be fixed in the outside of rolling bed frame 2. Thus, one of the translation driven shafts 11 is engaged with the motor shaft of the translation motor 12, the translation motor 12 is operated, the motor shaft drives the translation driven shaft 11 to rotate, and two adjacent translation driven shafts 11 are connected through the translation belt 13, so that the motor shaft can drive all the translation driven shafts 11 to synchronously rotate, the bottom of the pallet body 18 is against the translation belt 13 in a releasable manner, friction force exists between the bottom of the pallet body 18 and the translation belt 13, so that the friction between the two causes the pallet body 18 to move in translation forward with the translation belt 13, the translation assembly, in turn, effects forward movement of pallet body 18, allowing pallet body 18 to move from one station to the next.

The utility model discloses a pallet lifting and positioning device, please refer to relevant each picture in fig. 1 to 11, can also be on the basis of preceding technical scheme: the lifting assembly comprises a lifting motor 15, two lifting driven shafts 21 which are symmetrically arranged on the front side and the rear side of the roller machine frame 2 in a front-back mode, and cam bearings 19 which are arranged on the left side and the right side of the lifting driven shafts 21, the inner periphery of each cam bearing 19 is detachably fixed with the corresponding lifting driven shaft 21, the outer periphery of each cam bearing 19 is detachably connected with the roller machine frame 2 in a rolling mode, and the two lifting driven shafts 21 are in transmission connection with a motor shaft of the lifting motor 15 through a lifting belt 20. Thus, when the lifting motor 15 operates, the lifting belt 20 simultaneously drives the lifting driven shaft 21 to synchronously rotate, the inner circumference of the cam bearing 19 is detachably fixed with the lifting driven shaft 21, so the lifting driven shaft 21 and the cam bearing 19 synchronously operate, the outer circumference of the cam bearing 19 is detachably connected with the roller frame 2 in a rolling way, and the outer circumference of the cam bearing 19 is of a cam structure, so the cam bearing 19 simultaneously rolls on the roller frame 2 during the rotation of the lifting driven shaft 21, the highest point of the outer circumference of the cam bearing 19 changes along with the rotation of the cam bearing 19, so the height of the roller frame 2 also rises or falls along with the rotation of the cam bearing 19, when the roller frame 2 moves to the highest point, the translation component is detachably abutted against the bottom of the pallet body 18, when the roller machine frame 2 moves to the lowest point, the pallet body 18 is fixed by the first guide assembly and the second guide assembly. In a further preferred technical scheme, a detection sheet set 22 for monitoring the height of the pallet body 18 is arranged at the central position of each of the two lifting driven shafts 21. In this way, the detecting sheet group 22 is arranged on the lifting driven shaft 21 to monitor the height of the pallet body 18, if the pallet body 18 is located at the high position, the bottom of the pallet body 18 can be in releasable contact with the translation assembly, so that the pallet body 18 can perform station conveyance using a frictional force with the translation belt 13, i.e. from this station to the next station, and then move the next pallet body 18 to this station for the next cycle, if pallet body 18 is in the low position, the front guide plate 6 is detachably abutted against the first guide assembly, the rear guide plate 7 is detachably clamped and fixed with the second guide assembly, and the pallet body 18 has been secured by the first and second guide assemblies.

The utility model discloses a pallet lifting and positioning device, please refer to relevant each picture in fig. 1 to 11, can also be on the basis of preceding technical scheme: the base 1 is respectively at the rear of first direction subassembly and the place ahead of second direction subassembly is detachable to be fixed with guide bar 17, roll bed frame 2 along the length direction of guide bar 17 slides from top to bottom and with the detachable sliding connection of guide bar 17. In this way, the guide rods 17 limit the X direction and the Y direction of the roller bed frame 2 during ascending or descending, so that the roller bed frame 2 always ascends or descends along the Z direction guided by the guide rods 17 during ascending or descending, and the roller bed frame 2 is prevented from shifting during the Z direction movement.

The above description is only for the description of several embodiments of the present invention, but the scope of the present invention should not be considered as falling within the scope of the present invention, in which all the equivalent changes or modifications or the equal-scale enlargement or reduction etc. according to the design spirit of the present invention are made.

Claims

1. The utility model provides a pallet lifting and positioning device which characterized in that: the roller machine tool comprises a base, a roller machine frame, a first guide assembly, a second guide assembly, a first positioning assembly, a translation assembly, a lifting assembly and a ventilation assembly, wherein the first guide assembly is arranged in front of a longitudinal central line of the roller machine frame, the bottom of the first guide assembly is detachably fixed with the base, the top of the first guide assembly can be detachably abutted against a front guide plate of a traveling fixture body, the second guide assembly is arranged at the rear of the longitudinal central line of the roller machine frame, the bottom of the second guide assembly is detachably fixed with the base, the top of the second guide assembly can be detachably clamped and fixed with a rear guide plate of the traveling fixture body, the first positioning assembly is bilaterally symmetrically arranged on the left side and the right side of the periphery of the roller machine frame and detachably fixed with the base, and the first positioning assembly is detachably abutted against a fixture supporting block on the traveling fixture body, the translation subassembly bilateral symmetry set up in the interior week left and right sides of roller bed frame and its both ends about and the roller bed frame is detachable fixed, the top of translation subassembly with the bottom of follower anchor clamps body can the formula of removing offset, the bottom of lift subassembly with the subassembly of ventilating all set up in the inside of roller bed frame and with the base is detachable fixed, the top of lift subassembly with the detachable roll connection of roller bed frame, the subassembly of ventilating with the detachable intercommunication of cylinder of follower anchor clamps body.

2. The pallet lift positioning device of claim 1, wherein: the first guide assembly comprises two guide bearings, the two guide bearings are respectively arranged on the left side and the right side of the front part of the longitudinal central line of the roller bed frame and detachably fixed with the base, and the inner sides of the peripheries of the guide bearings are respectively offset with the left side and the right side of the front guide plate in a releasable manner.

3. The pallet lift positioning device of claim 1, wherein: the second guide assembly comprises a positioning pin, the positioning pin is arranged at the rear part of the longitudinal central line of the rolling machine frame and detachably fixed with the base, and the positioning pin is detachably clamped and fixed with the rear guide plate.

4. The pallet lift positioning device of claim 3, wherein: the pin hole is detachably fixed on the rear guide plate, and the positioning pin is detachably clamped and fixed with the pin hole.

5. The pallet lift positioning device of claim 1, wherein: the first positioning component comprises six rolling machine supporting blocks which are bilaterally symmetrical and detachably fixed at the front part, the middle part and the rear part of the left side and the right side of the rolling machine frame, the clamp supporting blocks are arranged at corresponding positions of the rolling machine supporting blocks, and the rolling machine supporting blocks and the clamp supporting blocks can be detachably abutted.

6. The pallet lift positioning device of claim 5, wherein: the base is provided with the benchmark hole that is used for measuring the pallet body position in six the outside of rolling bed supporting shoe.

7. A pallet lifting and positioning device according to any of claims 1-6, wherein: the translation subassembly includes translation motor, horizontal equidistant detachable being fixed in the inside at least three translation driven shaft of rolling bed frame, adjacent two all connect through the translation belt transmission of vertical setting between the translation driven shaft, the translation belt with the bottom releasable counterbalance of pallet body, one of them the translation driven shaft with translation motor's motor shaft meshing is connected, the translation motor is detachable to be fixed in the outside of rolling bed frame.

8. A pallet lifting and positioning device according to any of claims 1-6, wherein: the lifting assembly comprises a lifting motor, two lifting driven shafts and cam bearings, the two lifting driven shafts are symmetrically arranged on the front side and the rear side of the roller machine frame in a front-back mode, the cam bearings are arranged on the left side and the right side of the lifting driven shafts, the inner peripheries of the cam bearings are detachably fixed with the lifting driven shafts, the outer peripheries of the cam bearings are detachably connected with the roller machine frame in a rolling mode, and the two lifting driven shafts are connected with a motor shaft of the lifting motor through a lifting belt in a transmission mode.

9. The pallet lift positioning device of claim 8, wherein: and the central positions of the two lifting driven shafts are provided with detection sheet groups for monitoring the height of the follower fixture body.

10. A pallet lifting and positioning device according to any of claims 1-6, wherein: the base is respectively arranged at the rear of the first guide component and in front of the second guide component and is detachably fixed with a guide rod, and the roller machine frame slides up and down along the length direction of the guide rod and is in detachable sliding connection with the guide rod.