CN212122267U - Counterweight assembly special machine matched with loader ground drag chain assembly line - Google Patents
Counterweight assembly special machine matched with loader ground drag chain assembly line Download PDFInfo
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- CN212122267U CN212122267U CN202020907870.8U CN202020907870U CN212122267U CN 212122267 U CN212122267 U CN 212122267U CN 202020907870 U CN202020907870 U CN 202020907870U CN 212122267 U CN212122267 U CN 212122267U
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Abstract
The utility model discloses a counter weight assembly special plane of cooperation loader ground tow chain assembly line belongs to the automatic assembly technical field of mill, and this counter weight assembly special plane is including the pallet truck that is used for placeeing the counter weight and being used for carrying respectively in proper order, location, the roll table, positioning mechanism and the hoist mechanism that go up and down this pallet truck. The rear frame of the loader is placed on a counterweight assembling station by using a drag chain general assembly line, the hoisting, conveying, positioning and jacking of a counterweight and the initial screwing of an assembling bolt are sequentially completed, and the rear frame of the loader with the counterweight is placed on a counterweight screwing station by using the drag chain general assembly line, and the re-screwing and final screwing of the assembling bolt are completed. The utility model provides a counter weight assembly special plane has filled the blank of the counter weight automatic assembly of china engineering machine loader manufacturing enterprise.
Description
Technical Field
The utility model belongs to the technical field of the automatic assembly of mill, a special plane that counter weight jacking assembly and automatic screwing up of cooperation loader ground tow chain assembly line is provided for realize the automatic assembly of loader counter weight.
Background
In the mechanical industry, a loader is one of the largest products with largest production and sales volume in engineering machinery products, and a counterweight is a key component of a rear frame of the loader, and the assembly process of the counterweight is an extremely important and critical ring in the assembly process of the loader. The main process flow for assembling the loader counterweight comprises the following steps: the rear frame of the loader is in place, the balance weight is sent to the lower part of the tail end of the rear frame, the balance weight is lifted, and the balance weight bolt is screwed down.
At present, no equipment which can be matched with a general assembly line of a loader ground drag chain and can carry out corresponding automatic counterweight assembly exists in China. At present, main operation modes of mainstream manufacturers are as follows: after the loader is conveyed to a counterweight assembling station through a ground drag chain, the counterweight is lifted by a manually operated crane and is conveyed to the lower part of the tail end of the rear frame, then the counterweight is lifted by the manually operated crane to abut against the rear frame, and finally, the counterweight bolt is screwed up manually by adopting an electric or hydraulic wrench. There are problems that: the whole process of the counterweight assembly has low production efficiency and low safety performance. The manual assembly mode is adopted, 4 people are needed, the assembly beat is about 20min, the quality standard reaching rate is 85%, and the problems of more occupied people, high labor intensity, low production efficiency and high potential safety hazard are caused.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a counter weight assembly special plane of cooperation loader ground tow chain assembly line for realize the full automated assembly of frame and counter weight part behind the loader.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a counterweight assembly special plane of cooperation loader ground tow chain assembly line, including the roller table, positioning mechanism and the hoist mechanism that are used for placeeing the pallet truck of counter weight and are used for carrying in proper order respectively, fixing a position, go up and down this pallet truck.
Furthermore, the positioning mechanism and the lifting mechanism adopt one of a hydraulic push rod, an electro-hydraulic push rod or a pneumatic push rod.
Furthermore, a steel support for installing a roller way and a lifting mechanism is arranged in a foundation pit of the assembly line of the floor drag chain.
Furthermore, the special counter weight assembling machine further comprises a hydraulic station connected with the positioning mechanism and the lifting mechanism respectively.
Furthermore, the special counterweight assembling machine further comprises a bolt tightening robot and a control cabinet connected with the bolt tightening robot.
Furthermore, the conveying line of the roller way is vertical to the general assembly line of the floor drag chain, and the pallet truck is arranged opposite to the positioning mechanism relative to the general assembly line of the floor drag chain.
The utility model has the advantages that:
1. the utility model provides an equipment has solved loader manufacturing enterprise and has needed to utilize the production that function more single equipment or instrument were accomplished by the manual work in assembling the counter weight, and the personnel participate in many in the assembling process, and the station dispersion, intensity of labour is big, and is inefficient, the poor problem of security.
2. The utility model discloses the whole assembly process of equipment only needs 1 people operation equipment, and the assembly beat is about 10min, and quality standard reaching rate is more than 99.5%.
3. The utility model discloses can be automatic on one set of professional equipment accomplish loader heavy assembly and all processes that the product station removed, showing and reducing the recruitment, only one bit operation workman need not to operate the driving or remote walking about, low in labor strength, production efficiency is high, and the potential safety hazard is low.
4. The utility model discloses utilize the robot to come to twist the counter weight bolt eventually, solved and adopted electronic or hydraulic wrench to accomplish the counter weight bolt by the manual work and screw up, alleviateed artifical intensity, reduced the cost of labor, improved production efficiency.
5. The utility model discloses the counter weight assembly line that is equipped with is on the basis of loader ground tow chain assembly line originally, and make the whole assembly process of loader not break away from former production line, do not need the loader operation of going on and off the production line promptly, great improvement the assembly efficiency and the assembly cost of loader, and simultaneously, the counter weight assembly line is as the branch road of loader ground tow chain assembly line, arrange with it mutually perpendicular, and its transport, the location, jacking operation is completed at one go, make its flow short, it is accurate to fix a position, the jacking is quick, very big the counter weight assembly line that has shortened, the assembly rhythm has been promoted.
6. The utility model adopts the automatic equipment to assemble the key processes, thereby greatly improving the product quality and stability; meanwhile, the blank of automatic counterweight assembly of the engineering machinery assembly machine manufacturing enterprises in China is filled.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a plan view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is state 1 in the B-B cross-sectional view of FIG. 1: a pallet truck is arranged on the counterweight;
FIG. 4 is state 2 in the cross-sectional view B-B of FIG. 1: the pallet truck enters the bottom of a rear frame of the loader;
FIG. 5 is state 3 in the cross-sectional view B-B of FIG. 1: jacking the pallet truck;
reference numerals: the device comprises a ground drag chain trolley 1, a ground drag chain track 2, a ground drag chain 3, a pallet truck 4, a roller way 5, a lifting mechanism 6, a positioning mechanism 7, a hydraulic station 8, a control cabinet 9, a steel structure 10, a bolt tightening robot 11, a foundation pit 12, a counterweight 13 and a loader rear frame 14.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
As shown in fig. 1, the utility model discloses a counter weight assembly special plane is with loader ground tow chain assembly line complex, this ground tow chain assembly line is mainly including ground tow chain dolly 1, ground tow chain track 2 and ground tow chain 3, and this counter weight special plane is then including pallet truck 4, roll table 5, hoist mechanism 6, positioning mechanism 7, wherein, implement the hoist and mount work of counter weight 13 outside ground tow chain assembly line, set up roll table 5 in the direction perpendicular to ground tow chain assembly line and implement the transport of counter weight 13 and implement the location of counter weight 13 through positioning mechanism 7, implement the jacking of counter weight 13 through hoist mechanism 6 on ground tow chain assembly line, and after the assembly position on frame 14 behind the loader of waiting to assemble at counter weight 13 jacking, first through the twist to assembly bolt, then accomplish assembly between the two to the rethread of assembly bolt and final twist. Simply speaking, the rear frame 14 of the loader is placed on a counterweight assembling station by using a general assembly line of the drag chain, the hoisting, conveying, positioning and jacking of the counterweight and the initial screwing of the assembling bolt are sequentially completed, and the rear frame 14 of the loader provided with the counterweight 13 is placed on a counterweight screwing station by using the general assembly line of the drag chain, and the re-screwing and final screwing of the assembling bolt are completed. The whole assembly process only needs 1 person to operate the equipment, all processes of loading machine counterweight assembly and product station movement can be automatically completed on one set of special equipment, the labor amount is obviously reduced, only one operator does not need to operate a crane or walk in a long distance, the labor intensity is low, the production efficiency is high, and the potential safety hazard is low.
The positioning mechanism 7 and the lifting mechanism 6 in this embodiment use hydraulic rams and are powered by a hydraulic station 8. Of course, in different embodiments, an electro-hydraulic push rod or a pneumatic push rod can be adopted, and the purpose of adjusting the corresponding distance in a telescopic mode can be achieved.
In the foundation pit 12 of the assembly line of the drag chain in this embodiment, a steel support 10 for installing the roller table 5 and the lifting mechanism 6 is arranged. So as to support the counter weight, so that the counter weight can walk on the roller way, and the lifting mechanism can smoothly lift the counter weight.
The special machine for assembling the counterweight in the embodiment also comprises a bolt tightening robot 11 for automatically controlling the re-screwing and final screwing of the assembling bolt and a control cabinet 9 connected with the bolt tightening robot so as to control and operate the bolt tightening robot. The control cabinet is also used for controlling the work of the roller way 5, the hydraulic station 8 and other related equipment, and realizes automatic control.
The pallet truck in this embodiment is provided with a limit stop (not shown) to prepare for positioning and transporting the counterweight, thereby providing a guarantee for the follow-up operation.
Referring to fig. 2-5 again, the following detailed description describes the assembly method of the assembly line of the special counterweight assembly machine and the ground drag chain of the loader, which comprises the following steps:
the first step is as follows: the general assembly line of the ground drag chain drives the pin-connected ground drag chain trolley 1 (carrying the rear frame 14 of the loader) to move forward for a station to reach a 'counterweight assembly station';
the second step is that: the counterweight 13 is lifted on the pallet truck 4 by adopting automatic control or manual control of a light hoisting tool, and the positioning of the counterweight 13 on the pallet truck 4 is realized through a limit stop block on the pallet truck 4;
the third step: after confirming that the balance weight 13 is in place, a worker triggers a 'starting' button of the control cabinet 8, the ground roller table 5 rotates to drive the pallet truck 4 to run, the pallet truck enters the lower part of the tail end of the rear frame of the loader, and the pallet truck 4 and the rear frame 14 of the loader are positioned through the positioning mechanism 7;
the fourth step: after the positioning is finished, the lifting mechanism 6 is jacked up from the ground, rises from the gaps of the rollers of the roller way 5 on the ground, and jacks the pallet truck 4 away from the roller way 5 until the counterweight 13 jacks the rear frame 14 of the loader;
the fifth step: the worker detects and judges that the counterweight 13 is aligned with the bolt hole position of the rear frame 14 of the loader and finishes the initial screwing of the assembling bolt;
and a sixth step: after confirming that the initial screwing of the balance weight 13 is finished, a worker triggers a 'starting' button, the lifting mechanism 6 descends, the pallet truck 4 descends onto a ground roller way 5 along with the descending, the ground roller way 5 rotates again, and the pallet truck 4 is driven to move out of a 'balance weight assembly station' and reset;
the seventh step: the general assembly line of the ground drag chain drives the pin-connected ground drag chain trolley 1 (carrying the rear frame 14 of the loader) to move forward for a station to a 'counterweight tightening station';
eighth step: the bolt tightening robot 11 photographs and judges bolt hole positions of the counterweight 13 and the rear frame 14 of the loader through a visual recognition system, and finishes the re-screwing and final screwing of the assembly bolt in sequence.
Adopt above-mentioned scheme, the utility model provides an equipment has filled the blank of the counter weight automatic assembly of china's engineering machine tool loader manufacturing enterprise.
By adopting the scheme, the problems that most loader production enterprises need to assemble the balance weight, the current situation is completed by utilizing a traveling crane and a single-function device or tool manually, personnel participate in the assembly process, the stations are scattered, the labor intensity is high, the efficiency is low, and the safety is poor are solved.
By adopting the scheme, the number of people is reduced to 1 under the original condition of 4 people for reducing the number of people and increasing the efficiency; the assembly time is reduced from 20min to 10 min; and moreover, the assembly of key processes is carried out by adopting automatic equipment, so that the product quality and the stability are greatly improved.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a counter weight assembly special plane of cooperation loader ground tow chain assembly line which characterized in that, is used for placeeing pallet truck (4) of counter weight (13) and be used for carrying respectively in proper order, location, go up and down roll table (5), positioning mechanism (7) and hoist mechanism (6) of this pallet truck.
2. The special counterweight assembling machine for the general assembly line of the ground drag chain of the loader according to claim 1, wherein the positioning mechanism and the lifting mechanism adopt one of a hydraulic push rod, an electro-hydraulic push rod or a pneumatic push rod.
3. The special counterweight assembling machine for the general assembly line of the ground drag chain of the loader according to claim 1, characterized in that a steel support (10) for installing a roller way and a lifting mechanism is arranged in a foundation pit (12) of the general assembly line of the ground drag chain.
4. The special counterweight assembling machine for the general assembly line of the ground drag chain of the loader according to claim 1, which further comprises a hydraulic station (8) connected with the positioning mechanism and the lifting mechanism respectively.
5. The special counterweight assembling machine for the general assembly line of the floor drag chain of the loader according to claim 1, which is characterized by further comprising a bolt tightening robot (11) and a control cabinet (9) connected with the bolt tightening robot.
6. The special counterweight assembling machine for the general assembly line of the ground drag chain of the loader according to any one of claims 1 to 5, wherein the conveying line of the roller table is perpendicular to the general assembly line of the ground drag chain, and the pallet truck is arranged opposite to the positioning mechanism relative to the general assembly line of the ground drag chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020907870.8U CN212122267U (en) | 2020-05-26 | 2020-05-26 | Counterweight assembly special machine matched with loader ground drag chain assembly line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020907870.8U CN212122267U (en) | 2020-05-26 | 2020-05-26 | Counterweight assembly special machine matched with loader ground drag chain assembly line |
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| CN212122267U true CN212122267U (en) | 2020-12-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496499A (en) * | 2020-05-26 | 2020-08-07 | 中机中联工程有限公司 | Special counterweight assembling machine and method for assembling general assembly line of ground drag chain of loader |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496499A (en) * | 2020-05-26 | 2020-08-07 | 中机中联工程有限公司 | Special counterweight assembling machine and method for assembling general assembly line of ground drag chain of loader |
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