CN213036247U - Automatic work piece layering placing rack - Google Patents

Abstract

The utility model belongs to the technical field of automobiles, and particularly provides an automatic layered workpiece placing rack, which comprises a base frame and at least one group of two linked positioning mechanisms; the linkage positioning mechanism comprises at least two positioning pieces which are arranged at intervals along the vertical direction, and a linkage piece is arranged on the end surface of the positioning piece facing downwards of the positioning piece positioned above any two adjacent positioning pieces; the linkage positioning mechanism is provided with an idle state that all positioning parts are not linked and the upper positioning parts are positioned in the base column and the lower positioning parts partially extend out of the base column, and a bearing state that the lowest positioning part is pressed to rotate to the flat position under the action of the gravity of a workpiece to be positioned and extends out of the base column, and an opening state that the upper positioning part and the lowest positioning part are linked to rotate to partially extend out of the base column through a linkage part. The positioning pieces of the linkage positioning mechanism are linked under the action of gravity of the workpiece to be positioned, so that the workpieces are sequentially placed in layers from top to bottom, and the linkage mechanism is simple in structure and high in linkage.

Description

Automatic work piece layering placing rack

Technical Field

The utility model belongs to the technical field of the car, concretely relates to work piece is automatic to be layered and is placed work or material rest.

Background

In the automatic production process of automobiles, the same automobile body parts need to be produced in large batch, and in order to effectively save the spatial layout of the production line, a material rack with multiple layers of supports is generally used for storage and transportation. The positioning mechanisms for supporting parts in the existing layered material rack are mostly driven by pneumatic elements such as air cylinders and the like to retract and release; if each layer of positioning mechanism is driven by a pneumatic element to be retracted, the manufacturing cost and the maintenance cost are high, and the occupied space is large; if all the positioning mechanisms are driven by a pneumatic element together to realize linkage, the structure is more complex; moreover, the positioning mechanism of the common layered material rack can only support parts, and in the process of transporting the parts, once the parts meet the uneven road surface, the parts supported on the positioning mechanism easily jump longitudinally, so that the parts are easy to fall off the positioning mechanism or collide with the positioning mechanism in the process of repeatedly jumping and falling to cause damage to the parts.

Current patent CN103921024A discloses a work or material rest of accurate work piece that stacks, it is connected with first supporting shoe and second supporting shoe to rotate through first pivot and second pivot respectively from bottom to top on the bracket, first connecting rod of first round pin hub connection and second round pin hub connection is passed through respectively between first supporting shoe and the second supporting shoe, first supporting shoe top is equipped with first spacer pin and the first spacer pin that rotates down of going up, second round pin hub connection is in the slotted hole on the first connecting rod, first supporting shoe and second supporting shoe top are equipped with respectively and rotate the spacer pin, it upwards or rotates downwards to drive the linkage of second supporting shoe through first supporting shoe and connecting rod linkage, realize the purpose of placing the work piece. Although the material rack with the structure can be linked to realize the arrangement of workpieces from bottom to top, the support blocks of the structure are linked through a connecting rod which is vertically arranged, when the height of the material rack is higher, the length of the corresponding connecting rod is larger, and meanwhile, as the connecting rod is provided with the long hole, the number of the support blocks in the material rack is less and the number of the workpieces which can be arranged is less; and once the connecting rod breaks, the whole material rack can not realize linkage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in that current layering work or material rest realizes placing the work piece through the connecting rod linkage, and the quantity that leads to the supporting shoe in the work or material rest is less, and the work piece quantity that can place is less, in case the connecting rod fracture moreover, the linkage will unable realization of whole work or material rest.

Therefore, the utility model provides an automatic work piece layering rack, include:

the base frame comprises a base and a plurality of base columns vertically fixed on the base;

the linkage positioning assembly comprises two linkage positioning mechanisms which are oppositely arranged in the foundation columns on two opposite sides of the base, the linkage positioning mechanisms can be rotatably arranged on the foundation columns in a stretching and retracting manner, and a positioning space for supporting and positioning a workpiece to be positioned is defined between the two linkage positioning mechanisms;

the linkage positioning mechanism comprises at least two positioning pieces which are arranged at intervals along the vertical direction, and linkage pieces are arranged on the end faces, facing each other, of any two adjacent positioning pieces;

the linkage positioning mechanism is provided with all positioning pieces which are not linked and are arranged above the positioning pieces, the positioning pieces are arranged in the foundation column and at the lowest part of the positioning pieces partially extend out of the foundation column in an idle state, and the positioning pieces at the lowest part of the positioning pieces are pressed and rotated to extend out of a flat position under the action of gravity of workpieces to be positioned, the positioning pieces outside the foundation column are in a bearing state and above the positioning pieces, and the positioning pieces are in linkage rotation to partially extend out of the foundation column in an opening state through the linkage pieces and the lowest positioning pieces.

Optionally, an automatic layering work or material rest of placing of work piece, linkage positioning mechanism includes:

a first positioning member partially extending out of the base pillar in an unloaded state, and arranged at the bottom of the base pillar correspondingly;

at least one second positioning element, which is located in the base pillar in the no-load state, is arranged above the first positioning element;

the included angle formed by the second positioning piece and the flat position of the second positioning piece in the no-load state is larger than the included angle formed by the first positioning piece and the flat position of the first positioning piece in the no-load state;

the linkage piece is arranged on the end face of one side, facing the first positioning piece, of the second positioning piece, the linkage piece can be pressed against the upper surface of the first positioning piece to generate linkage in the process that the first positioning piece is pressed down under the action of gravity of a workpiece to be positioned, and the second positioning piece rotates in a linkage mode towards the direction of the flat position until the second positioning piece partially extends out of the base column and forms an included angle with the flat position;

under the opening state, the second positioning piece can be pressed down and switched to a bearing state under the action of the gravity of the workpiece to be positioned.

Optionally, the workpiece automatic layering material placing rack comprises at least two second positioning pieces, and the at least two second positioning pieces are arranged in a staggered manner in the vertical direction;

in at least two second positioning parts, the linkage parts are arranged on the mutually-facing end surfaces of any two adjacent second positioning parts, and the at least two second positioning parts can also be linked through the corresponding linkage parts respectively;

when the at least two second positioning parts are in an opening state, the included angle formed by the at least two second positioning parts and the respective flat position is gradually increased from bottom to top.

Optionally, an automatic layering work or material rest of placing of work piece, linkage positioning mechanism still includes:

the first limiting piece is arranged below the first positioning piece and used for limiting the rotation of the first positioning piece when the first positioning piece is in an unloaded state;

a plurality of second limiting parts which are arranged above the first limiting parts, correspond to all the positioning parts one by one and can limit the corresponding positioning parts when the corresponding positioning parts are in a bearing state of a flat position;

the first limiting part and the second limiting part are not collinear in the vertical direction.

Optionally, in the automatic workpiece layering and placing rack, the first positioning element and the second positioning element are both rotatably arranged on the base column through a rotating shaft; and the first positioning piece and the second positioning piece are both plates with the gravity centers eccentric to the rotation center defined by the rotating shaft.

Optionally, in the automatic workpiece layering and placing rack, the upper surfaces of the first positioning part and the second positioning part are respectively provided with a limiting block protruding upwards to limit the lateral movement of a workpiece to be positioned placed on the first positioning part and the second positioning part; and/or

The linkage positioning mechanism comprises at least two groups, and the at least two groups are distributed on the periphery of the base.

Optionally, the automatic layering work rest of placing of work piece, still include:

the linkage pressing mechanism comprises at least three rotating rods which are arranged on the base in a linkage rotating mode, a connecting rod group which is connected with all the rotating rods in a linkage mode, and a locking mechanism which is arranged on one of the rotating rods and used for locking and limiting all the rotating rods to rotate or unlocking and releasing all the rotating rods to rotate;

a plurality of pressing pieces which are arranged at intervals along the axial direction of the rotating rods are arranged on any one of the rotating rods, and at least three rotating rods are distributed on the periphery of the positioning space;

the linkage pressing mechanism is provided with a pressing state that all the pressing pieces are pressed on the upper surfaces of the workpieces to be positioned respectively and correspondingly when the linkage positioning mechanism is in a bearing state, and a loosening state that all the pressing pieces are driven to rotate by a preset angle to avoid the upper surfaces of the workpieces to be positioned respectively and correspondingly.

Optionally, the automatic layering work piece rack of placing of a kind of work piece, the linkage includes:

the two ends of the first connecting rod are respectively hinged with the fourth connecting rods on the two rotating rods;

a second connecting rod with the middle part rotatably connected with the base and one end slidably connected with the middle part of the first connecting rod;

a third connecting rod, two ends of which are respectively hinged with the second connecting rod and a fourth connecting rod on the other rotating rod;

the first connecting rod, the second connecting rod, the third connecting rod and the fourth connecting rod are arranged at preset included angles;

the second connecting rod with first connecting rod articulated one end is equipped with one and follows the bar spout that the length direction of second connecting rod extends, first connecting rod is in during the state of compressing tightly keep away from of bar spout with third connecting rod articulated one end just is in during the unclamping state be in the bar spout be close to with third connecting rod articulated one end.

Optionally, the automatic work piece layering rack, the locking mechanism includes:

the handle is fixedly connected with one of the rotating rods and used for driving the rotating rod to rotate, and a mounting hole is formed in the handle;

the locking mechanism body can be inserted into the mounting hole to lock and unlock the rotating rod;

the top of this dwang is passed through the handle rotationally install set firmly in on the mounting panel on the bed frame, be equipped with two on the mounting panel and be and predetermine angle arrange can with the spacing hole that the locking mechanism body cooperation was locked.

Optionally, the automatic workpiece layering and placing rack comprises at least four rotating rods, wherein connecting lines of projections of the at least four rotating rods on the upper surface of the base form a polygonal structure, and the polygonal structure is located in the positioning space;

in the pressing state, all the pressing pieces face the inside of the polygonal structure; and/or

The preset angle is 90 °.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an automatic layered workpiece rack, which comprises a base frame and at least one group of two linked positioning mechanisms; the linkage positioning mechanism comprises at least two positioning pieces which are arranged at intervals along the vertical direction, and a linkage piece is arranged on the end surface of the positioning piece facing downwards of the positioning piece positioned above any two adjacent positioning pieces; the linkage positioning mechanism is provided with an idle state that all positioning parts are not linked and the upper positioning parts are positioned in the base column and the lower positioning parts partially extend out of the base column, and a bearing state that the lowest positioning part is pressed to rotate to the flat position under the action of the gravity of a workpiece to be positioned and extends out of the base column, and an opening state that the upper positioning part and the lowest positioning part are linked to rotate to partially extend out of the base column through a linkage part. The positioning pieces of the linkage positioning mechanism are linked under the action of gravity of the workpiece to be positioned, so that the workpieces are sequentially placed in layers from top to bottom, and the linkage mechanism is simple in structure and high in linkage.

2. The utility model provides an automatic work piece layered material rack, the linkage positioning mechanism comprises a first positioning piece and at least one second positioning piece, when in no-load state, the included angle formed by the second positioning piece and the flat position thereof is larger than the included angle formed by the first positioning piece and the flat position thereof, the first positioning piece partially extends out of the foundation column, and the second positioning piece is positioned in the foundation column; that is to say when the work piece of awaiting positioning is placed along the top of bed frame downwards, contact first locating part at first and rely on self action of gravity to make first locating part lay level and produce the linkage with the linkage on the second locating part, drive the second locating part that is located first locating part top and stretch out the foundation post and switch over to the open mode outward to the realization is from bottom to top placed the work piece in proper order by layers.

3. The utility model provides a pair of work piece automatic layering placing rack, the second setting element includes at least two, the linkage piece sets up on the terminal surface that faces each other of any two adjacent second setting elements, and any two adjacent second setting elements stagger in the vertical, through the setting of staggering, make the interval of a plurality of second setting elements in the vertical direction less, so can set up more quantity of setting elements in limited space, thus can place more quantity of work pieces; and the included angles between the plurality of second positioning parts and the respective leveling positions of the plurality of second positioning parts are gradually increased from bottom to top in the opening state, so that the workpieces can be sequentially placed from bottom to top.

4. The utility model provides a pair of work piece is automatic to be layered and is placed work or material rest, linkage positioning mechanism still includes first locating part and second locating part, butt when idle state through first locating part at the lower surface of first locating part, first locating part and second locating part are not the collineation in vertical direction simultaneously to realize that first locating part slope sets up on the foundation column and the part stretches out the foundation column outside, realize through the second locating part that each setting element is in the position of laying level when bearing the weight of the state.

5. The utility model provides a pair of work piece is automatic to be layered and is placed work or material rest all is equipped with the stopper on first setting element and the second setting element, can place the setting element and take place lateral shifting and lead to the work piece roll-off setting element to cause the damage when the work piece of undetermined position is placed on the setting element.

6. The utility model provides a pair of work piece is automatic to be layered and is placed work or material rest still includes linkage hold-down mechanism, through linkage hold-down mechanism's setting, can be moving the in-process of transportation to the work or material rest, the compact heap compresses tightly at the upper surface of work piece, prevents that the work piece from taking place the jump in vertical direction and causing the collision damage, protects the work piece effectively.

7. The utility model provides a pair of work piece is automatic to be layered and is placed work or material rest, linkage hold-down mechanism include dwang and locking mechanism, realize through locking mechanism that linkage hold-down mechanism is locked when the compression state to loosening state unblock locking mechanism can, simple structure prevents that linkage hold-down mechanism from being forced to take place to rotate in the transportation and breaking away from the work piece to compress tightly causing the work piece to bump the damage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a three-dimensional structure diagram of an automatic layered workpiece rack in embodiment 1 of the present invention;

fig. 2 is a three-dimensional structure view of the automatic workpiece layering and placing rack of the embodiment 1 of the present invention without a panel on the base frame;

FIG. 3 is a three-dimensional structure diagram of the automatic layered workpiece placement rack of FIG. 2 without the workpiece to be positioned;

fig. 4 is a schematic structural view of a linkage positioning mechanism of one group of linkage positioning mechanisms of the automatic workpiece layering rack according to embodiment 1 of the present invention;

FIG. 5 is a schematic structural view of the linkage positioning mechanism of FIG. 4 with the base pillar omitted (the first positioning member is in a load-bearing state in a flat position);

FIG. 6 is a schematic structural diagram of a portion of the positioning members of the linked positioning mechanism in FIG. 5 (the first positioning member is in a load-bearing state of a flat-position);

fig. 7 is a schematic perspective view of the first positioning element or the second positioning element shown in fig. 6;

fig. 8 is a schematic structural view of a linkage pressing mechanism of an automatic workpiece layered rack according to embodiment 1 of the present invention, which is mounted on a base (locked in a pressed state);

fig. 9 is a schematic structural view of a linkage pressing mechanism of an automatic workpiece layering and placing rack according to embodiment 1 of the present invention (locked in a pressed state);

fig. 10 is a schematic structural view of a linkage pressing mechanism of the automatic workpiece layering and placing rack according to embodiment 1 of the present invention;

FIG. 11 is a schematic structural view of a second link of the linkage of FIG. 12;

FIG. 12 is a partial enlarged structural view of A in FIG. 9;

fig. 13 is the utility model provides an automatic layering of work piece is placed work or material rest's linkage hold-down mechanism's locking mechanical system body's sectional structure schematic diagram in embodiment 1.

Description of reference numerals:

10-a base frame; 11-a base; 12-a base pillar; 121-a mounting cavity; 13-mounting a plate; 131-a limiting hole; 20-a linkage positioning mechanism; 21-a first positioning member; 211-a first portion; 212-a second portion; 22-a second positioning element; 23-a linkage; 24-a rotating shaft; 25-a first limit stop; 26-a second stop; 27-a limiting block; 30-a linkage hold-down mechanism; 31-rotating rods; 310-a compression sheet; 32-linkage; 321-a first link; 322-a second link; 323 a third link; 324-a fourth link; 325-strip chute; 3251 a first end; 3252-second end; 33-a locking mechanism; 331-a locking mechanism body; 3311-guide sleeve; 3312-pin; 3313-operating the disc; 3314-stop collar; 3315-guide lumen; 332-a handle; 40-workpiece to be positioned.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

In the automatic layered workpiece rack of this embodiment, a workpiece to be positioned is described by taking a new energy battery lower cover as an example, as shown in fig. 1 to 13, the rack 10 includes a frame-shaped base frame 10, the base frame 10 includes a rectangular base 11 and a plurality of, for example, 6 pillars 12 arranged perpendicular to an upper surface of the base 11, the 6 pillars 12 are divided into three groups, one group is arranged on a pair of short sides of the base 11, and the other two groups are arranged on a group of long sides of the base 11 at intervals; each base column 12 is internally provided with an installation cavity 121, and the linkage positioning mechanism 20 is rotationally arranged in the installation cavity 121; the three sets of ganged positioning assemblies in the three sets of pedestals 12 collectively define a positioning space (not shown) for positionally supporting a workpiece 40 to be positioned; a linkage pressing mechanism 30, including a plurality of, for example, three rotating rods 31 linked by a linkage 32 and rotatably disposed on the base 11, two of which are disposed on a pair of long sides of the base 11, and the other rotating rod 31 is disposed on one short side of the base 11; each linkage positioning mechanism 20 comprises at least two positioning pieces arranged at intervals along the vertical direction and a linkage piece 23 arranged on the end faces of the positioning pieces facing each other, and each linkage positioning mechanism 20 has a bearing state which is pressed down by the gravity of a workpiece 40 to be positioned and generates linkage rotation through the linkage piece 23 to extend out of the outer side of the base column 12 where the linkage piece is located to a flat position parallel to the upper surface of the base 11 and an idle state which rotates under the action of self gravity and releases the linkage of the linkage piece 23 to retract into the base column 12, wherein an included angle is formed between the linkage piece and the flat position; the rotating rod 31 is provided with a plurality of pressing pieces 310 arranged at intervals, and the linkage pressing mechanism 30 has a pressing state in which all the pressing pieces 310 are pressed against the upper surface of the workpiece 40 to be positioned in a bearing state and a release state in which all the rotating rods 31 are driven to rotate to a preset angle until all the pressing pieces 310 avoid the upper surface of the workpiece 40 to be positioned.

As shown in fig. 1 to 7, the interlocking positioning mechanism 20 includes a first positioning member 21 and fourteen second positioning members 22, the second positioning members 22 are divided into seven groups, two of the groups are arranged in a staggered manner in the vertical direction, and the lower second positioning member 22 in one group adjacent to the first positioning member 21 is pressed against the upper surface of the first positioning member 21 by a linkage member 23 provided thereon to generate an interlocking relationship. More specifically, as shown in fig. 4 to 7, the first positioning member 21 is disposed at the lowermost portion of the base column 12, and the plurality of second positioning members 22 are arranged above the first positioning member 21 at intervals in the vertical direction in order. In any two second positioning parts 22, the lower second positioning part 22 is located below and behind the upper second positioning part 22. Wherein, the first positioning element 21 partially extends out of the base pillar 12 in the no-load state, and all the second positioning elements 22 are located in the installation cavity 121 in the base pillar 12 in the no-load state; in other words, the included angle between the first positioning element 21 and the flat position thereof is smaller than the included angle between all the second positioning elements 22 and the respective flat positions thereof. When the first positioning piece 21 is pressed and rotated to a flat position parallel to the upper surface of the base 11 under the action of the gravity of the workpiece 40 to be positioned, the first positioning piece 21 contacts with the linkage piece 23 on the second positioning piece 22 above the first positioning piece to generate linkage in the rotating process, and drives the second positioning piece 22 to rotate downwards in the same direction until the second positioning piece partially extends out of the base column 12 to be in an open state, and at the moment, the extended part is pressed downwards to enable the second positioning piece 22 to be switched to a bearing state when the workpiece 40 to be positioned is placed; when the positioning device is in the open state, the included angle formed by the second positioning parts 22 from bottom to top and the respective flat positions of the second positioning parts is gradually increased, so that when the first positioning part 21 is in the bearing state, the second positioning part 22 adjacent to the first positioning part 22 is driven by the linkage part 23 to partially extend out of the base column 12 to be switched to the open state, the linkage part 23 on the second positioning part 22 adjacent to the second positioning part 22 in the open state is just in contact with the upper surface of the second positioning part 22 in the open state to generate linkage, and the switching of the second positioning parts to the open state is sequentially realized from bottom to top, so that the purpose of sequentially placing the workpieces in layers is realized. It should be noted that, the first positioning element of the present embodiment is also provided with a linkage element 23, and the structure is the same as the second positioning element, including the same length, width and height, which is convenient for processing. Alternatively, the first positioning member 21 is not provided with the link member 23. Alternatively, the length of the first positioning element 21 is greater than that of all the second positioning elements 22, so that the workpiece to be positioned can be firstly contacted with the first positioning element 21 to achieve the purpose of sequentially placing the workpieces from bottom to top.

As shown in fig. 5 to 6, in any one of the sets of second positioning elements 22, the coupling element 23, such as a coupling boss integrally formed with the positioning element, protrudes outward from the facing end surfaces of the lower and upper second positioning elements. When the first positioning piece 21 is in a bearing state, the linkage convex columns on the lower second positioning pieces in the adjacent group of second positioning pieces are pressed against the upper surface of the first positioning piece 21 to generate linkage, and the first positioning piece 21 is pressed and rotated under the action of the gravity of a workpiece to be positioned to drive the second positioning piece 22 to rotate through linkage of the linkage convex columns; similarly, in any two adjacent groups of the second positioning parts 22, two adjacent second positioning parts are also pressed by the linkage convex columns to generate linkage; in any set of the second positioning elements 22, the upper second positioning element is pressed against the upper surface of the lower second positioning element by the linking convex column thereon to perform linking. The length of the link 23 is not particularly limited and described. Alternatively, the linkage 23 may be welded or screwed in a manner easy to implement.

As shown in fig. 4 to 5, the number of the rotating shafts 24 corresponds to the number of the first positioning members 21 and the second positioning members 22. The number of the rotating shafts 24 can be selected by those skilled in the art according to actual requirements.

For each positioning element, as shown in fig. 4-7, the plate has a center of gravity that is eccentric to the center of rotation defined by the axis of rotation 24. Specifically, as shown in fig. 7, the rotating shaft 24 is used as a rotating center, and includes a first portion 211 and a second portion 212 which are located at two sides of the rotating center and have different structures, wherein the lower surface of the first portion 211 is an inclined surface, and the lower surface of the second portion 212 is a plane; in the loading state, the lower surface of the first part 211 is higher than the lower surface of the second part 212 in the vertical direction, and each positioning element has one heavy end and one light end, so that the second part 212 can incline around the center of rotation towards one side of the center of gravity under the action of the self gravity without being influenced by external force until the second part is switched to the unloaded state at an included angle with the flat position. The lower surface of the first portion 211 transitions in a circular arc with the lower surface of the second portion 212.

As for the first limiting member 25 and the second limiting member 26, both are pin shafts fixed on two side walls of the base pillar 12, specifically, as shown in fig. 4, the first limiting member 25 is disposed below the first positioning member 21, the plurality of second limiting members 26 are disposed above the first limiting member 25 and correspond to the number of all the positioning members one to one, when the first positioning member 21 is in an idle state, the lower surface of the first positioning member will abut against the first limiting member 25 and be limited to incline at an included angle with the horizontal position thereof; when each positioning piece is in a flat bearing state, the upper surface of each positioning piece is respectively abutted against the lower end of the corresponding second limiting piece. Specifically, the height of the second position-limiting member 26 corresponding to each position-limiting member in the vertical direction is higher than the height of the rotating shaft 24 on the position-limiting member, and the second position-limiting member 26 and the upper surface of the position-limiting member are at the same height in the flat position. The first limiting member and the second limiting member are not collinear in the vertical direction, and specifically, a vertical line on which the first limiting member 25 is located and a vertical line on which the plurality of second limiting members 26 are located are spaced in parallel.

In order to prevent the workpiece 40 to be positioned from moving laterally on the positioning members, as shown in fig. 5 to 7, an upwardly protruding stopper 27 is provided on the upper surface of the first portion of the upper surface of each positioning member, and the stopper 27 is kept away from the rotating shaft 24 above the stopper 27 during the rotation process. Alternatively, the stopper 27 may not be provided.

As for the interlocking pressing mechanism 30, as shown in fig. 8 to 13, it includes three rotating levers 31, forty-five pressing pieces 310, one linkage 32, and one locking mechanism 33, and the rotating levers 31 are rotatably provided on the base 11 about a vertical axis (not shown) perpendicular to the surface of the base 11. For convenience of distinction and description, among the three rotating levers 31, the rotating lever provided with the lock mechanism 33 is expressed as a main rotating lever, the rotating lever 31 connected to the main rotating lever through the first link 321 is expressed as a first slave rotating lever, and the rotating lever 31 connected to the third link 323 is expressed as a second slave rotating lever. The pressing pieces 310 protrude outwards in the radial direction and are arranged on the outer side wall of the rotating rod 31 at intervals in the axial direction, and all the rotating rods 31 have a pressing state that all the pressing pieces 310 are pressed on the upper surface of the workpiece 40 to be positioned and a loosening state that all the pressing pieces 310 rotate around the vertical axis by a preset angle to avoid the upper surface of the workpiece 40 to be positioned; the locking mechanism 33 is disposed at the top end of the main rotating rod, and locks the main rotating rod to restrict all the rotating rods 31 from rotating around the respective corresponding vertical axes when the main rotating rod is switched from the pressing state to the releasing state or from the releasing state to the pressing state; the connecting lines of the projections of all the rotating levers 31 on the upper surface of the base 11 are formed in a triangular configuration. Optionally, the triangle structure is an isosceles triangle structure or an equilateral triangle.

As shown in fig. 8 to 11, the linkage 32 includes a first link 321, a second link 322, a third link 323, and three fourth links 324, wherein one end of the first link 321 is hinged to the fourth link 324 fixed to the bottom of the main rotating rod, and the other end is hinged to the fourth link 324 fixed to the bottom of the first slave rotating rod; one end of the second connecting rod 322 is slidably connected with a hinge shaft at the middle part of the first connecting rod 321 through a strip-shaped sliding chute 325, the middle part is connected with the base 11 through a fixed shaft (not shown), and the other end is hinged with the third connecting rod 323; one end of the third connecting rod 323 is hinged with the second connecting rod 322, and the other end is hinged with a fourth connecting rod 324 fixed at the bottom of the second driven rotating rod; the first link 321, the second link 322, the third link 323, and the fourth link 324 are disposed at a predetermined included angle, such as an acute angle (the specific angle is not limited) as shown in fig. 10, and those skilled in the art can select a design according to actual requirements. As shown in fig. 11, the bar-shaped sliding groove 325 extends in the length direction of the second link 322; the first link 321 is at a first end 3251 of the bar-shaped sliding groove 325 in the compressed state as shown in fig. 8 and is at a second end 3252 of the bar-shaped sliding groove 325 in the released state (not shown). The fourth link 324 on the master rotating rod and the fourth link 324 on the first slave rotating rod connected with the master rotating rod through the first link 321 are opposite in orientation; as shown in fig. 10, the fourth link 324 on the main rotating lever faces upward left, and the fourth link 324 on the first slave rotating lever connected to the main rotating lever via the first link 321 faces downward right; when the main rotating rod rotates in the counterclockwise direction, the fourth link 324 thereon pulls the first link 321 to move towards the upper right, so as to drive the fourth link 324 on the first slave rotating rod connected with the first link 321 to rotate reversely, due to the arrangement of the second link 322, the fixed seat 11 and the strip-shaped sliding groove 325, the two ends of the second link 322 rotate around the fixed shaft, the first link 321 moves to the second end 3252 along the first end 3251 of the strip-shaped sliding groove 325 on the second link 322, and simultaneously drives the end of the second link 322 hinged with the third link 323 to rotate towards the direction close to the third link 323, so that the third link pushes the fourth link 324 on the second slave rotating rod 323 hinged therewith to rotate reversely with the main rotating rod until all the pressing sheets 310 avoid the upper surface of the workpiece 40 to be positioned correspondingly and switch to the loosened state, and vice versa. Alternatively, the linkage 32 may not include the fourth link 324, two ends of the first link 321 are respectively rotatably connected to the main rotating rod and the first slave rotating rod, and one end of the third link 323 is rotatably connected to the second slave rotating rod. The hinge connection for the above can be by means of an existing conventional hinge shaft hinge connection.

As shown in fig. 9, the pressing piece 310 is a plate-shaped pressing piece that protrudes radially from the outer side wall of each rotating lever 31. The number of the pressing pieces 310 is not limited, and a person skilled in the art can select and design according to actual requirements, for example, as shown in fig. 9, each rotating rod 31 is provided with 15 pressing pieces, the distance between each pressing piece 310 is consistent, and the size of each pressing piece is consistent. The dimensions of the compression tab 310 are not described or defined in detail. The pressing piece 310 may be fixed to the rotating rod 31 by welding or may be connected by a connection method that is easy to implement in the art, and is not particularly limited and described.

As for the locking mechanism 33, as shown in fig. 8 and fig. 12 to 13, a handle 332 and a locking mechanism body 331 are provided, the handle 332 is fixedly connected to the top end of the main rotating rod for controlling the main rotating rod to rotate around the corresponding vertical axis, and the handle 332 is provided with a mounting hole (not shown) for mounting the locking mechanism body 331; the locking mechanism body 331 can be inserted into the mounting hole and fixed on the handle 332, specifically, on the mounting plate 13 arranged on the base frame 10 and arranged on the top end of the main rotating rod, the main rotating rod can rotate relative to the mounting plate 13, the mounting plate 13 is arranged below the handle 332 and the locking mechanism body 331 and is provided with two limiting holes 131 arranged at the preset angle (preferably 90 degrees in this embodiment) on the mounting plate 13, and the locking mechanism body 331 is matched with the limiting holes 131 to lock the main rotating rod. More specifically, as shown in fig. 13, the locking mechanism body 331 includes a rod-shaped plug 3312, a tubular guide sleeve 3311 and a resilient return member (not shown), the guide sleeve 3311 has a guide cavity 3315 therein, the plug 3312 is inserted into the guide cavity 3315 of the guide sleeve 3311, the upper end and the lower end of the plug 3312 extend to the outside of the guide sleeve 3311, the top end of the plug 3312 is provided with an operating disc 3313 having a diameter larger than the outer diameter of the guide sleeve 3311, and the outer wall of the plug 3312 is provided with a radially outwardly protruding retaining ring 3314 having a diameter consistent with the inner diameter of the guide sleeve 3311; the elastic reset component is arranged in the guide cavity 3315 and sleeved on the periphery of the plug 3312, one end of which is pressed against the inner top wall of the guide sleeve 3311, and the other end of which is pressed against the position-limiting ring 3314 and applies a biasing force to the plug 3312 which extends out of the guide sleeve 3311; that is, the part of the lower end of the bolt 3312 extending out of the guide sleeve 3311 can be inserted into the position-limiting hole 131 to lock the main rotating rod and move upward along the guide cavity 3315 of the guide sleeve 3311 until the bottom end of the bolt 3312 is separated from the position-limiting hole 131 to unlock the main rotating rod. The specific locking and unlocking process is as follows: when the upward pulling force acting on the operating disk 3313 is released, the bolt 3312 will extend out of the guide sleeve 3311 under the resetting action of the resetting elastic member and be inserted into the limiting hole 131 to lock the main rotating rod; when the lock needs to be unlocked, the lock on the main rotating rod can be released only by pulling the operating disc 3313 upward to retract the bottom end of the bolt 3312 into the guide cavity 3315 of the guide sleeve 3311 and disengage from the position-limiting hole 131. It should be noted that, in the pressing state, the pressing piece 310 is perpendicular to the long side of the workpiece, and the preset angle in this embodiment is greater than or equal to 90 °, so that the pressing piece 310 can completely avoid the upper surface of the workpiece in the release state.

As a first alternative embodiment, the interlocking positioning mechanism 20 of the present embodiment includes only one set, and one set of interlocking positioning mechanisms is provided on a pair of long sides or short sides of the base 11; or two groups of the base plates are arranged around the base 11 in a cross shape or are arranged on a pair of long sides or short sides of the base 11.

As a second alternative embodiment, the locking mechanism body 331 of the present embodiment may also include only a locking portion (not shown) and an operating portion (not shown), the operating portion is integrally formed with the locking portion, the diameter of the operating portion is larger than that of the locking portion and larger than that of the mounting hole and the limiting hole, the diameter of the locking portion is consistent with that of the mounting hole and the limiting hole 131, the locking mechanism body 331 and the handle 332 are detachably connected, and in the locked state, the operating portion is located above the mounting hole. When the main rotating rod needs to be locked, the locking part is inserted into the mounting hole and the limiting hole 131 in sequence; when the locking is required to be released, the locking mechanism body is directly pulled out from the limiting hole 131 and the mounting hole.

As a third alternative embodiment, the number of the rotating levers 31 in the present embodiment may also be other numbers, such as four, five, six, etc., and the connecting lines of the projections of the rotating levers 31 on the base 11 are formed in a polygonal structure, such as a quadrangle, a pentagon, a hexagon, etc.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (10)

1. The utility model provides an automatic work piece layering work or material rest of placing which characterized in that includes:

the pedestal (10) comprises a base (11) and a plurality of foundation columns (12) vertically fixed on the base (11);

the linkage positioning assembly comprises at least one group of linkage positioning assemblies, each group of linkage positioning assemblies comprises two linkage positioning mechanisms (20) which are oppositely arranged in the base column (12) on two opposite sides of the base (11), the linkage positioning mechanisms (20) are rotatably arranged on the base column (12) in an extensible and retractable manner, and a positioning space for supporting and positioning a workpiece (40) to be positioned is defined between the two linkage positioning mechanisms (20);

the linkage positioning mechanism (20) comprises at least two positioning pieces which are arranged at intervals along the vertical direction, and linkage pieces (23) are arranged on the mutually facing end surfaces of any two adjacent positioning pieces;

the linkage positioning mechanism (20) is provided with an idle state that all the positioning parts are not linked, the positioning part above is positioned in the base column (12), the positioning part at the lowest part partially extends out of the base column (12), and a bearing state that the positioning part at the lowest part is pressed to rotate to a flat position under the action of gravity of a workpiece (40) to be positioned and extends out of the base column (12), and the positioning part above rotates to an opening state that the positioning part at the lowest part partially extends out of the base column (12) in a linkage way through the linkage part (23);

the linkage pressing mechanism (30) is provided with a pressing state for pressing the upper surface of the workpiece (40) to be positioned correspondingly respectively when the linkage positioning mechanism (20) is in a bearing state and a loosening state for driving the workpiece to rotate by a preset angle to avoid the upper surface of the workpiece (40) to be positioned correspondingly respectively.

2. The automatic workpiece layering and placing rack according to claim 1, wherein the linkage positioning mechanism (20) comprises:

a first positioning element (21) which partially protrudes outside the base column in the unloaded state and is arranged at the bottom of the corresponding base column (12);

at least one second positioning element (22) which is located in the base pillar in the unloaded state and is arranged above the first positioning element (21);

the included angle formed by the second positioning piece (22) and the flat position of the second positioning piece is larger than the included angle formed by the first positioning piece (21) and the flat position of the first positioning piece in the no-load state;

the linkage piece (23) is arranged on the end face of one side, facing the first positioning piece (21), of the second positioning piece (22), the linkage piece (23) can abut against the upper surface of the first positioning piece (21) to generate linkage in the process that the first positioning piece (21) is pressed down under the action of gravity of a workpiece (40) to be positioned, and the second positioning piece (22) rotates towards the direction of the flat position in a linkage mode to an opening state that a part of the second positioning piece extends out of the base column (12) and forms an included angle with the flat position;

in the open state, the second positioning part (22) can be pressed down to be switched to a bearing state under the action of the gravity of the workpiece (40) to be positioned.

3. The automatic workpiece layering and placing rack according to claim 2, wherein the second positioning members (22) comprise at least two, and at least two second positioning members (22) are arranged in a staggered manner in the vertical direction;

in the at least two second positioning parts (22), the linkage parts (23) are arranged on the mutually facing end surfaces of any two adjacent second positioning parts (22), and the at least two second positioning parts (22) can also be linked through the corresponding linkage parts (23);

when the at least two second positioning pieces (22) are in an opening state, the included angle formed by the two second positioning pieces and the respective flat position is gradually increased from bottom to top.

4. The automatic workpiece layering and placing rack according to claim 2, wherein the linkage positioning mechanism (20) further comprises:

a first limiting member (25) arranged below the first positioning member (21) and used for limiting the rotation of the first positioning member (21) when the first positioning member (21) is in an unloaded state;

a plurality of second limiting parts (26) which are arranged above the first limiting parts (25), correspond to all the positioning parts one by one and can limit the corresponding positioning parts when the corresponding positioning parts are in a bearing state of a flat position;

the first limiting part (25) and the second limiting part (26) are not collinear in the vertical direction.

5. The automatic workpiece layering and placing rack according to claim 2, wherein the first positioning element (21) and the second positioning element (22) are rotatably arranged on the base column (12) through a rotating shaft (24); and the first positioning piece (21) and the second positioning piece (22) are both plates with the gravity centers eccentric to the rotation center defined by the rotating shaft (24).

6. The automatic workpiece layering and placing rack according to claim 2, wherein the upper surfaces of the first positioning piece (21) and the second positioning piece (22) are respectively provided with a limiting block (27) which protrudes upwards and limits the transverse movement of a workpiece (40) to be positioned placed on the limiting blocks; and/or

The linkage positioning mechanism (20) comprises at least two groups, and the at least two groups are distributed on the periphery of the base (11).

7. The automatic workpiece layering and placing rack according to claim 1, wherein the linkage pressing mechanism (30) comprises at least three rotating rods (31) which are arranged on the base (11) in a linkage and rotation manner, a linkage (32) which is in linkage connection with all the rotating rods (31), and a locking mechanism (33) which is arranged on one of the rotating rods (31) and is used for locking and limiting the rotation of all the rotating rods (31) or unlocking and releasing the rotation of all the rotating rods (31);

a plurality of pressing pieces (310) which are arranged at intervals along the axial direction of the rotating rod (31) are arranged on any one rotating rod (31), and at least three rotating rods (31) are distributed on the periphery of the positioning space;

when in the pressing state, all the pressing sheets (310) are pressed on the upper surface of the workpiece (40) to be positioned correspondingly; in the release state, all the pressing pieces (310) avoid the upper surface of the workpiece (40) to be positioned correspondingly.

8. The automatic workpiece layering and placing rack according to claim 7, wherein the linkage (32) comprises:

a first connecting rod (321) with two ends respectively hinged with the fourth connecting rods (324) on two of the rotating rods (31);

a second connecting rod (322) with the middle part rotatably connected with the base (11) and one end slidably connected with the middle part of the first connecting rod (321);

a third connecting rod (323) with two ends respectively hinged with the second connecting rod (322) and a fourth connecting rod (324) on the other rotating rod (31);

the first connecting rod (321), the second connecting rod (322), the third connecting rod (323) and the fourth connecting rod (324) are arranged at preset included angles;

one end, hinged to the first connecting rod (321), of the second connecting rod (322) is provided with a strip-shaped sliding groove (325) extending along the length direction of the second connecting rod (322), and the first connecting rod (321) is located at one end, far away from the end hinged to the third connecting rod (323), of the strip-shaped sliding groove (325) in the compression state and located at one end, close to the end hinged to the third connecting rod (323), of the strip-shaped sliding groove (325) in the loosening state.

9. An automatic workpiece layering and placing rack as claimed in claim 7, wherein said locking mechanism (33) comprises:

a handle (332) fixedly connected with one of the rotating rods (31) and used for driving the rotating rod to rotate, wherein a mounting hole is formed in the handle (332);

a locking mechanism body (331) which can be inserted into the mounting hole to lock and unlock the rotating rod (31);

the top of this dwang (31) is passed through handle (332) rotationally install set firmly in mounting panel (13) on bed frame (10), be equipped with two on mounting panel (13) and be the angle of predetermineeing arrange can with spacing hole (131) that locking mechanism body (331) cooperation was locked.

10. The automatic workpiece layering and placing rack according to claim 7, wherein the rotating rods (31) comprise at least four rotating rods, and connecting lines of the projections of the at least four rotating rods (31) on the upper surface of the base (11) form a polygonal structure, and the polygonal structure is located in the positioning space;

in the pressing state, all the pressing sheets (310) face to the inside of the polygonal structure; and/or

The preset angle is 90 °.

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