CN113501272A

CN113501272A - Automatic feeding mechanism for crankshaft

Info

Publication number: CN113501272A
Application number: CN202110686274.0A
Authority: CN
Inventors: 冶生有; 齐亚文; 徐静; 李建福; 甄雪琴
Original assignee: Kocel Machine Tool Accessories Ltd
Current assignee: Kocel Machine Tool Accessories Ltd; Ningbo Kocel Machine Tool Auxiliary Machinery Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-10-15

Abstract

The automatic crankshaft feeding device comprises a base, a storage mechanism and a rotating mechanism, wherein the storage mechanism comprises a plurality of stand columns and storage plates, the stand columns are symmetrically arranged on two sides of the base and protrude out of the base, and the storage plates are fixedly arranged at the top ends of the stand columns to form a plurality of workpiece placing stations; the transfer mechanism comprises a bottom plate, a jacking assembly and a top plate, wherein the bottom plate is positioned between the upright columns on the two sides and is arranged on the base in a sliding manner; the bottom of the jacking assembly is fixedly connected with the bottom plate, and the output end of the jacking assembly is connected with the top plate; the top plate is provided with a crankshaft placing rack; jacking the jacking assembly to jack the top plate together with the crankshaft placing frame; the bottom plate slides to horizontally move the top plate and the crankshaft placing rack above the material storage plate; the jacking assembly descends, and workpieces placed on the crankshaft placing rack can be automatically placed on the workpiece placing stations.

Description

Automatic feeding mechanism for crankshaft

Technical Field

The invention relates to production and processing equipment for automobile parts, in particular to an automatic feeding mechanism for a manipulator crankshaft production line.

Background

With the rapid development of the automobile industry, and simultaneously facing a plurality of competitors, the production line efficiency of automobile parts directly determines the manufacturing cost, wherein a crankshaft is used as a core component of an automobile engine, and the production level directly determines the quality of the whole automobile. Except the machining time of a machine tool, the transfer efficiency between each procedure of the crankshaft production line determines the production rhythm of the whole production line. The sequence conversion between every truss manipulator needs feeding mechanism to accomplish, makes up the unable sequence conversion because of the interval problem between the truss manipulator.

In the prior art, a feeding mechanism matched with a manipulator crankshaft production line adopts a semi-automatic feeding mode at present, and a crankshaft can normally run only by manually placing the crankshaft on the feeding mechanism. Because the bent axle quality is great relatively, though can use assist drive device in the manual handling process, still need to lean on the manpower to place the bent axle on feeding mechanism, equipment just can normally operate. The labor intensity is greatly consumed, and potential safety hazards of part collision exist in the carrying process.

Disclosure of Invention

In view of the above, it is necessary to provide an automatic feeding structure for crankshaft. The feeding mechanism can automatically meet the requirement of transferring the crankshaft, reduce the degree of manual participation and avoid potential safety hazards.

The automatic crankshaft feeding device comprises a base, a storage mechanism and a rotating mechanism, wherein the storage mechanism comprises a plurality of stand columns and storage plates, the stand columns are symmetrically arranged on two sides of the base and protrude out of the base, and the storage plates are fixedly arranged at the top ends of the stand columns; the transfer mechanism comprises a bottom plate, a jacking assembly and a top plate, wherein the bottom plate is positioned between the upright columns on the two sides and is arranged on the base in a sliding manner; the bottom of the jacking assembly is fixedly connected with the bottom plate, and the output end of the jacking assembly is connected with the top plate; the top plate is provided with a crankshaft placing rack; the arrangement directions of the crankshaft placing rack and the material storage plate are consistent; (ii) a Jacking the jacking assembly to jack the top plate together with the crankshaft placing frame; the bottom plate slides to horizontally move the top plate and the crankshaft placing rack above the material storage plate; the jacking assembly descends, and workpieces placed on the crankshaft placing rack can be automatically placed on the workpiece placing stations.

In one embodiment, the jacking assembly comprises a first cylinder, a fixed bracket and a movable bracket; one end of the fixed bracket is fixedly connected with the bottom plate; one end of the movable support far away from the fixed support is fixedly connected with the top plate; the opposite sides of the fixed bracket and the movable bracket are provided with first sliding components; the first air cylinder is close to the movable support, the bottom of the first air cylinder is fixedly connected with the bottom plate, and the output end of the first air cylinder is fixedly connected with the movable support.

In one embodiment, the first sliding assembly comprises a first sliding block and a first guide rail, the guide rail is fixedly arranged on the movable bracket along the operation direction of the air cylinder, and the sliding block is matched with the guide rail and fixedly arranged on the fixed bracket.

In one embodiment, the first cylinder is centrally disposed on the movable bracket, which is centrally disposed on the top plate.

In one embodiment, a second sliding assembly is arranged on the base, the second sliding assembly comprises a second guide rail and a second sliding block, the second guide rail is fixedly arranged on the bracket, and the second sliding block is matched with the second guide rail and is fixed on the bottom plate.

In one embodiment, the second sliding assemblies are provided with a plurality of groups and are symmetrically arranged.

In one embodiment, the base is further fixedly provided with a second cylinder, an output end of the second cylinder is fixedly connected with one side of the bottom plate, and the telescopic direction of the output end of the cylinder is perpendicular to the connecting line of the upright columns on two sides of the base and the movement direction of the jacking assembly.

In one embodiment, grooves matched with the overall dimension of the crankshaft are arranged on the discharging rack and the crankshaft placing rack.

In one embodiment, a liquid containing groove is formed in one end, close to the bottom plate, of the base and is used for collecting liquid carried by the crankshaft.

In one embodiment, the base is provided with a plurality of adjustable supports at one end far away from the bottom plate, and the adjustable supports are used for adjusting the height and the levelness of the base.

According to the automatic crankshaft feeding mechanism, the crankshaft on the transfer mechanism can be automatically conveyed to the storage mechanism through the lifting in the vertical direction and the movement in the horizontal direction, and the whole process does not need manual participation. And the automation degree of the conveying process is high, the conveying positioning is accurate, and the collision and the scratch of the crankshaft can be avoided.

Drawings

FIG. 1 is a schematic axial view of an automatic feeding mechanism for a crankshaft;

FIG. 2 is a schematic front view of an automatic feeding mechanism for a crankshaft;

FIG. 3 is a schematic view of the operation of the automatic feeding mechanism for crankshaft;

in the drawings:

100-a base, 110-a second sliding assembly, 120-a second cylinder, 130-a liquid containing groove, 140-an adjustable support, 111-a second guide rail, 112- + a second sliding block;

200-a material storage mechanism, 210-a column and 220-a material storage plate;

300-a transfer mechanism, 310-a top plate, 320-a jacking assembly, 330-a bottom plate, 340-a first sliding assembly, 321-a first cylinder, 322-a fixed support and 323-a movable support;

400-crankshaft.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "top," "bottom," "top," and the like are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, the automatic crankshaft feeding device comprises a base, a storage mechanism and a rotating mechanism, wherein the storage mechanism comprises a plurality of stand columns and storage plates, the stand columns are symmetrically arranged on two sides of the base and protrude out of the base, and the storage plates are fixedly arranged at the top ends of the stand columns; the transfer mechanism comprises a bottom plate, a jacking assembly and a top plate, wherein the bottom plate is positioned between the upright columns on the two sides and is arranged on the base in a sliding manner; the bottom of the jacking assembly is fixedly connected with the bottom plate, and the output end of the jacking assembly is connected with the top plate; the top plate is provided with a crankshaft placing rack; the arrangement directions of the crankshaft placing rack and the material storage plate are consistent; (ii) a Jacking the jacking assembly to jack the top plate together with the crankshaft placing frame; the bottom plate slides to horizontally move the top plate and the crankshaft placing rack above the material storage plate; the jacking assembly descends, and workpieces placed on the crankshaft placing rack can be automatically placed on the workpiece placing stations.

The horizontal operation of the transfer mechanism on the feeding mechanism enables the crankshaft placed on the transfer mechanism to be conveyed to any position of the material storage mechanism; the crankshaft can be automatically placed on a station to be placed by the up-down lifting of the transfer mechanism. The automatic feeding process of the crankshaft is realized through horizontal and vertical actions, and manual participation is reduced; the transfer mechanism is provided with a crankshaft placing rack, and the hidden dangers of crankshaft damage, instable installation and the like can be avoided.

Referring to fig. 1, the automatic crankshaft feeding device includes a base 100, a storing mechanism 200, and a rotating mechanism 300. Specifically, the base 100 is formed by welding and assembling a plurality of sections of square tubes to form a square frame. The magazine 200 includes 4 posts 210 and 4 magazine boards 220. Each upright post is pairwise symmetrically arranged on the square tubes at the two sides of the base and protrudes out of the base. Each storage plate is fixedly installed on the top end of the upright post, and the installation surface is the opposite side of the upright post. Preferably, the storage plate is made of a thick plate, and a V-shaped groove matched with the size of the crankshaft is machined in one end of the storage plate. During installation, the V-shaped groove of the material storage plate is far away from the base. Therefore, when the material is required to be stored, the crankshaft is only required to be placed in the V-shaped grooves of the material storage plates on the two sides. The V-shaped groove is convenient to process, accurate in positioning and reliable in material storage. The relay mechanism 300 includes a bottom plate 310, a lift-up assembly 320, and a top plate 330. The bottom plate 310 is located between the pillars at the two sides of the base and is connected with the base in a sliding manner. The bottom and the bottom plate fixed connection of jacking subassembly 320, the output and the roof of jacking subassembly are connected. Therefore, when the jacking assembly is movably assembled, the top plate can be jacked or contracted. The top plate is provided with a crankshaft placing frame 340, and the crankshaft placing frame is provided with a V-shaped groove with the same size as the material storage plate and the arrangement direction of the V-shaped groove is consistent with that of the material storage plate. The crankshafts on the crankshaft placing rack can be automatically placed on the storage plates through the sliding of the bottom plate and the jacking of the jacking assembly.

It should be noted that the number of the upright columns and the material storage plates can be set to be more than one according to actual requirements; the crankshaft placing rack can also be arranged in plurality at intervals. Optimally, the arrangement distance of the plurality of material storage plates is the same as the spacing distance of the plurality of crankshaft placing frames. Therefore, batch feeding is convenient, and the efficiency can be improved.

In one embodiment, the jacking assembly 320 includes a first cylinder 321, a fixed bracket 322, and a movable bracket 323. The fixed support and the movable support can adopt supports with L-shaped sections, and triangular reinforcing ribs are arranged on two sides of each L-shaped support. Specifically, one side of the fixed bracket is fixedly connected with the bottom plate through a bolt; one side of the movable bracket, which is far away from the fixed bracket, is fixedly connected with the top plate; the opposite side of the fixed bracket and the movable bracket is provided with a first sliding component 324; the first air cylinder is arranged close to the movable support, the bottom of the first air cylinder is fixedly connected with the bottom plate, and the output end of the first air cylinder is fixedly connected with the movable support. Therefore, the sliding assembly is arranged between the movable support and the fixed support, so that the movable support can be driven to do lifting motion relative to the fixed support when the air cylinder acts.

In one embodiment, in order to facilitate the lifting movement of the movable support, the first sliding assembly comprises a first sliding block and a first guide rail. First guide rail is along cylinder traffic direction fixed mounting on the movable support, and first slider matches first guide rail fixed mounting on the fixed bolster. The smooth lifting of the movable support is realized through the sliding of the guide rail in the sliding block. In order to ensure the lifting linearity, two first sliding blocks can be arranged and are arranged on the fixed bracket at intervals. It should be noted that I guarantee that the lift is smooth and easy to slide, but first slip subassembly interval sets up multiunit. The maximum height of the first cylinder is higher than the highest point of the material storage mechanism. Namely, the crankshaft placed on the transfer mechanism is guaranteed not to interfere with the discharging plate when the cylinder is jacked.

In one embodiment, in order to ensure the lifting stability of the transfer mechanism, the first air cylinder is arranged on the movable support in the middle, and the movable support is arranged on the top plate in the middle. In order to guarantee the balance of the top plate in the lifting process, the contact area between the movable support and the top plate needs to be enlarged, and therefore when the crankshaft is placed on the crankshaft placing frame, the top plate cannot incline or be unstable.

Referring to fig. 1 again, in an embodiment, in order to ensure smooth horizontal sliding of the transfer mechanism, two sets of second sliding assemblies 110 are disposed on the base. Each set of second sliding assemblies includes a second guide rail 111 and two second sliders 112. Specifically, the second guide rail is along fixed setting in the top both sides of base, and two second sliders match the second guide rail interval and fix the both ends at the bottom plate. Therefore, the horizontal operation of the transfer mechanism is realized by sliding the bottom plate on the guide rail through the sliding block. It should be noted that, in order to ensure the running stability of the transfer mechanism, the two sets of second sliding assemblies are symmetrically arranged on two sides of the base. When the size of the transfer mechanism is large, multiple groups of second sliding assemblies can be arranged at intervals.

In an embodiment, in order to improve the automation and the feeding accuracy and reduce the manual participation, the base is further fixedly provided with a second cylinder 120. Specifically, the second cylinder is fixedly arranged at one end of the base, and the output end of the second cylinder is fixedly connected with one end of the bottom plate in the running direction. Optimally, the telescopic direction of the output end of the air cylinder is perpendicular to the connecting line of the stand columns on the two sides of the base and the movement direction of the jacking assembly, namely, the telescopic direction of the air cylinder is consistent with the sliding direction of the second sliding assembly. Therefore, when the cylinder acts, the transfer mechanism is guided downwards by the sliding of the second sliding assembly, and the horizontal operation can be stably realized.

In an embodiment, in order to ensure that the cutting fluid carried on the crankshaft can be recovered in a centralized manner when the crankshaft is conveyed, the base is provided with a fluid containing groove 130 at one end close to the bottom plate, the top of the fluid containing groove is open, the periphery of the fluid containing groove is matched with the base in size, and the base is completely wrapped. Furthermore, the bottom of the liquid containing groove can be provided with a valve which is externally connected with a liquid guide pipe. The cutting carried on the crankshaft directly falls into the liquid containing tank, and when the liquid containing tank is full, the valve can be opened and the cutting is discharged to a collection place through the liquid guide pipe. Therefore, the cutting fluid on the crankshaft can not be scattered all around, and the factory environment is protected; but also can intensively recycle the cutting fluid, thereby saving the cost.

In one embodiment, the base is provided with a plurality of adjustable supports 140 at an end remote from the base plate (an end near the ground). The adjustable support can be purchased standard parts, and also can adopt a screw rod to weld a flat plate. The flatness and the height of the base can be adjusted by adjusting the relative position of the screw rod and the square tube of the base.

Referring to fig. 3, the automatic feeding mechanism works as follows:

on the bent axle rack of transfer mechanism was placed to bent axle 400, at first the jacking of first cylinder, transfer mechanism moved along the arrow direction in the effect of second cylinder and second slip subassembly, when moving to No. 1 position, the shrink of first cylinder, and transfer mechanism descends, and the bent axle was on the storage flitch of No. 1 position was displaced from the bent axle rack this moment.

If set up a plurality of bent axles on the transfer mechanism and place the position, then carry the bent axle on the bent axle rack to corresponding storage mechanism's storage plate one by one according to above-mentioned process. It should be noted that, if the interval of the crankshaft placing rack is the same as that of the material storage plate, the crankshafts on the transfer mechanism can be completely transferred to the material storage mechanism through one horizontal and one lifting movement. The conveying efficiency is high, and no manual participation is needed in the whole process; the cylinder drives, has still avoided the colliding with of bent axle and fish tail problem.

Furthermore, the automatic feeding mechanisms are independently arranged, a plurality of automatic feeding mechanisms can be arranged according to working conditions, workpieces can be conveyed in a stepping mode through arrangement and combination, and the production line is convenient to arrange.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An automatic feeding device for a crankshaft is characterized by comprising a base, a material storage mechanism and a rotating mechanism,

the material storage mechanism comprises a plurality of stand columns and material storage plates, wherein the stand columns are symmetrically arranged on two sides of the base and protrude out of the base, and the material storage plates are fixedly arranged at the top ends of the stand columns to form a plurality of workpiece placing stations;

the transfer mechanism comprises a bottom plate, a jacking assembly and a top plate, wherein the bottom plate is positioned between the upright columns on the two sides and is arranged on the base in a sliding manner; the bottom of the jacking assembly is fixedly connected with the bottom plate, and the output end of the jacking assembly is connected with the top plate; the top plate is provided with a crankshaft placing rack; jacking the jacking assembly to jack the top plate together with the crankshaft placing frame; the bottom plate slides to horizontally move the top plate and the crankshaft placing rack above the material storage plate; the jacking assembly descends, and workpieces placed on the crankshaft placing rack can be automatically placed on the workpiece placing stations.

2. The automatic feeding device for the crankshaft as claimed in claim 1, wherein the jacking assembly comprises a first cylinder, a fixed bracket and a movable bracket; one end of the fixed bracket is fixedly connected with the bottom plate; one end of the movable support far away from the fixed support is fixedly connected with the top plate; the opposite sides of the fixed bracket and the movable bracket are provided with first sliding components; the first air cylinder is close to the movable support, the bottom of the first air cylinder is fixedly connected with the bottom plate, and the output end of the first air cylinder is fixedly connected with the movable support.

3. The automatic feeding device for the crankshaft as claimed in claim 2, wherein the first sliding assembly includes a first sliding block and a first guiding rail, the guiding rail is fixedly installed on the movable bracket along the cylinder running direction, and the sliding block is fixedly installed on the fixed bracket matching with the guiding rail.

4. The crankshaft autoloading device of claim 2, wherein the first cylinder is centrally disposed on the movable bracket, the movable bracket being centrally disposed on the top plate.

5. The automatic feeding device for the crankshafts according to claim 1, characterized in that a second sliding assembly is provided on the base, the second sliding assembly comprising a second guide rail and a second sliding block, the second guide rail is fixedly provided on the bracket, and the second sliding block is fixed on the bottom plate in cooperation with the second guide rail.

6. The automatic feeding device for the crankshafts according to claim 5, characterized in that said second sliding means are provided in a plurality of groups and are arranged symmetrically.

7. The automatic feeding device for the crankshafts according to any one of claims 1 to 6, characterized in that a second cylinder is further fixedly arranged on the base, the output end of the second cylinder is fixedly connected with one side of the bottom plate, and the telescopic direction of the output end of the cylinder is perpendicular to the connecting line of the upright columns on both sides of the base and the moving direction of the jacking assembly.

8. The automatic feeding device for the crankshafts according to claim 1, characterized in that the discharging frame and the crankshaft placing frame are provided with grooves matching the external dimensions of the crankshafts.

9. The automatic feeding device for the crankshafts according to claim 1, characterized in that said base is provided with a liquid tank at an end near said bottom plate for collecting the liquid carried by the crankshafts.

10. The automatic feeding device for the crankshafts according to claim 1, characterized in that said base is provided with a plurality of adjustable supports at an end remote from said bottom plate for adjusting the height and levelness of the base.