CN116276031A

CN116276031A - Front axle press-fitting line

Info

Publication number: CN116276031A
Application number: CN202211710551.8A
Authority: CN
Inventors: 胡国游; 郭且夫; 刘玮; 陈泽; 余自朝
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-23

Abstract

The present invention provides a front axle press-fitting line, comprising: the positioning mechanism is used for positioning and bearing a plate spring of the front axle; the assembly line body is provided with a press-fit station, the positioning mechanism is arranged on a bearing surface of the assembly line body, and the assembly line body is used for driving the positioning mechanism to move along the extending direction of the assembly line body; the gantry mechanism is arranged at the press-fitting station and is provided with an assembly space for accommodating the positioning mechanism, and the gantry mechanism is used for press-fitting the plate spring. The invention adopts assembly line type assembly, changes station type production into running type production, improves production takt to meet the production takt, avoids the operation of turning the upper beam of the portal frame back and forth in the prior art, reduces the operation intensity of operators, and improves the preassembling efficiency of the front axle.

Description

Front axle press-fitting line

Technical Field

The invention belongs to the technical field of mechanical assembly, and particularly relates to a front axle press-fitting line.

Background

The front axle preassembling operation process by adopting the bench production line body is generally as follows: the portal frame upper beam of the bench production line body is rotated by 90 degrees, the hoisting space is released so that the plate springs and the bridge crane are lifted onto the bench production line body, the riding bolt, the cover plate and the locking nut are manually installed, the portal frame upper beam is rotated by 90 degrees and locked by the pin shaft, and press mounting operation is performed. The direction of the upper beam of the portal frame needs to be manually adjusted back and forth, so that the operation procedures are increased, and the production of the bench type is difficult to meet the beat of a production line.

Disclosure of Invention

The invention mainly aims to provide a front axle press line and aims to solve the technical problems of complex operation procedures and low assembly efficiency of the front axle press line in the prior art.

In order to achieve the above object, the present invention provides a front axle press-fitting line including: the positioning mechanism is used for positioning and bearing a plate spring of the front axle; the assembly line body is provided with a press-fit station, the positioning mechanism is arranged on a bearing surface of the assembly line body, and the assembly line body is used for driving the positioning mechanism to move along the extending direction of the assembly line body; the gantry mechanism is arranged at the press-fitting station and is provided with an assembly space for accommodating the positioning mechanism, and the gantry mechanism is used for press-fitting the plate spring.

In an embodiment of the present invention, the gantry mechanism includes: the gantry frame comprises two vertical frames and a transverse frame, wherein the transverse frame is connected between the two vertical frames and positioned at the top of the vertical frames, and the vertical frames and the transverse frame enclose the assembly space; and the press fitting device is arranged on the transverse frame, can stretch and retract along the up-down direction relative to the assembly line body, and presses the plate spring.

In an embodiment of the present invention, the gantry mechanism further includes an adjustor mounted to the transverse frame, the press-fitting device is slidably connected to the transverse frame, and the adjustor is configured to drive the press-fitting device to move relative to the transverse frame.

In an embodiment of the present invention, the front axle press line includes a supporting seat supported between the positioning mechanism and the pipeline body, and the gantry mechanism further includes a lifter, which is mounted at the bottom of the vertical frame and is used for lifting the positioning mechanism, and separating the positioning mechanism from the supporting seat.

In an embodiment of the present invention, the positioning mechanism includes: a main body plate; the locating component is installed with the main part board, the locating component includes along the relative interval of assembly line body width direction sets up of reel support and gyro wheel support, reel support be used for with the one end joint cooperation of leaf spring, gyro wheel support be used for supporting the other end of leaf spring and with leaf spring rolling contact cooperation.

In the embodiment of the invention, the number of the positioning assemblies is two, the main body plate is provided with X-direction guide grooves in sliding contact with the ear winding support, and the extending direction of the X-direction guide grooves is consistent with that of the assembly line body.

In the embodiment of the invention, the main body plate is provided with a concave convex block for abutting and limiting the ear rolling support.

In the embodiment of the invention, the concave-convex block at least comprises four mutually-angled limiting surfaces.

In the embodiment of the invention, the main body plate is also provided with a Y-direction guide groove in sliding contact with the roller support, and the extending direction of the Y-direction guide groove is consistent with the width direction of the assembly line body.

In the embodiment of the invention, the positioning mechanism further comprises a visual limiting block mounted on the main body plate, the visual limiting block can move relative to the main body plate along the extending direction and the width direction of the assembly line body, and the visual limiting block is used for being abutted upwards against the plate spring.

Through the technical scheme, the front axle press line provided by the embodiment of the invention has the following beneficial effects:

when the front axle press-mounting line is used for front axle press-mounting, the plate spring and the axle assembly can be respectively hung to the positioning mechanism, so that the plate spring and the positioning mechanism are in positioning fit, then the plate spring and the axle assembly are provided with the saddle bolts, the cover plates and the locking nuts, the assembly line body is driven, and the positioning mechanism flows to the press-mounting station along with the assembly line body; the positioning mechanism, the plate spring and the bridge assembly are processed and assembled in the space, and the plate spring and the bridge assembly are fixed and twisted after being pressed by the gantry mechanism; finally, the assembly line body drives the positioning mechanism to flow to the next station. The invention adopts assembly line type assembly, changes station type production into running type production, improves production takt to meet the production takt, avoids the operation of turning the upper beam of the portal frame back and forth in the prior art, reduces the operation intensity of operators, and improves the preassembling efficiency of the front axle.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide an understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:

FIG. 1 is a schematic diagram of a front axle press line in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a gantry mechanism of a front axle press line according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a positioning mechanism of a front axle press line according to an embodiment of the present invention.

Description of the reference numerals

Reference number designation number designation

100. Front axle press-mounting line 31 gantry frame

1. Positioning mechanism 311 vertical frame

11. Main body plate 312 transverse frame

111 Space for assembling X-direction guide groove 313

112 Press fitting device for Y-direction guide groove 32

113. Concave-convex 33 regulator

12. Positioning assembly 34 lifter

121. Support seat of ear support 4

122. Plate spring of roller support 200

2. Assembly line 300 bridge assembly

3. Gantry mechanism

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The front axle press line according to the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 3, in the embodiment of the present invention, a front axle press line 100 includes a positioning mechanism 1, a pipeline body 2, and a gantry mechanism 3; the positioning mechanism 1 is used for positioning and bearing a plate spring 200 of a front axle; the assembly line body 2 is provided with a press-fit station, the positioning mechanism 1 is placed on a bearing surface of the assembly line body 2, and the assembly line body 2 is used for driving the positioning mechanism 1 to move along the extending direction of the assembly line body 2; the gantry mechanism 3 is arranged at the press-fitting station and is provided with an assembly space 313 for accommodating the positioning mechanism 1, and the gantry mechanism 3 is used for press-fitting the plate spring 200. It will be appreciated that the pipeline 2 in this embodiment may be a plate link pipeline, and is mainly used for press fitting the plate spring 200 and the bridge assembly 300 of the front axle.

When the front axle press-mounting line 100 in the embodiment is adopted for front axle press-mounting, the plate spring 200 and the axle assembly 300 can be respectively hung to the positioning mechanism 1, so that the plate spring 200 and the positioning mechanism 1 are in positioning fit, then the plate spring 200 and the axle assembly 300 are provided with the saddle bolts, the cover plates and the locking nuts, the assembly line body 2 is driven, and the positioning mechanism 1 flows to the press-mounting station along with the assembly line body 2; the positioning mechanism 1, the plate spring 200 and the bridge assembly 300 are processed in the assembling space 313, and the plate spring 200 and the bridge assembly 300 are subjected to fixed torsion screwing after being pressed by adopting the gantry mechanism 3; finally, the assembly line body 2 drives the positioning mechanism 1 to flow to the next station. The assembly line type assembly is adopted in the embodiment, so that the station type production is changed into the running water type production, the production beat is improved, the production beat is met, the operation of turning the upper beam of the portal frame back and forth in the prior art is avoided, the operation intensity of operators is reduced, and the front axle preassembling efficiency is improved.

As shown in fig. 2, in one embodiment, the gantry mechanism 3 includes a gantry frame 31 and a press 32; the gantry frame 31 comprises two vertical frames 311 and a transverse frame 312, the transverse frame 312 is connected between the two vertical frames 311 and positioned at the top of the vertical frames 311, and the vertical frames 311 and the transverse frames 312 enclose an assembly space 313; the press-fitting device 32 is attached to the horizontal frame 312, and can be extended and contracted in the up-down direction with respect to the line body 2, and press-fits the plate spring 200. The press-fitting device 32 can adopt a press-fitting oil cylinder, and can press-fit the plate spring 200 on the positioning mechanism 1 downwards. The gantry frame 31 in this embodiment is U-shaped, and two vertical frames 311 are straddled on both sides of the width direction of the pipeline body 2. The width direction of the line body 2 is the left-right direction, the extending direction is the front-rear direction, and the line body 2 can convey the positioning mechanism 1 and the leaf spring 200 in the front-rear direction.

Specifically, the gantry mechanism 3 further includes an adjuster 33 mounted to the transverse frame 312, the press 32 is slidably connected to the transverse frame 312, and the adjuster 33 is configured to drive the press 32 to move relative to the transverse frame 312. The regulator 33 may be a telescopic cylinder, and may push the press-fitting device 32, and adjust the position of the press-fitting device 32 to facilitate press-fitting of the leaf spring 200, thereby improving the convenience of use of the front axle press-fitting line 100.

In the embodiment of the present invention, the front axle press line 100 includes a supporting seat 4 supported between the positioning mechanism 1 and the pipeline body 2, and the gantry mechanism 3 further includes a lifter 34, where the lifter 34 is installed at the bottom of the vertical frame 311 and is used to lift the positioning mechanism 1, and separate the positioning mechanism 1 from the supporting seat 4. The lifting cylinder can be adopted by the lifting cylinder 34, and the lifting cylinder 34 can separate the positioning mechanism 1 from the supporting seat 4, so that the condition that the assembly line body 2 is crushed by the pressing device 32 in the pressing process is avoided, the use stability of the front axle pressing line 100 is improved, and the service life of the front axle pressing line 100 is ensured.

As shown in fig. 3, in one embodiment, the positioning mechanism 1 includes a body plate 11 and a positioning assembly 12; the positioning assembly 12 is mounted on the main body plate 11, and the positioning assembly 12 comprises a rolling lug support 121 and a roller support 122 which are arranged at intervals along the width direction of the assembly line body 2, wherein the rolling lug support 121 is used for being in clamping fit with one end of the plate spring 200, and the roller support 122 is used for supporting the other end of the plate spring 200 and is in rolling contact fit with the plate spring 200. It should be noted that, the ear-rolling support 121 may be provided with a clamping hole matched with the plate spring 200 in a positioning manner, the roller support 122 may include a base and an upper roller, the upper roller may rotate relative to the base, the ear-rolling support 121 and the roller support 122 are respectively located at the left and right sides of the main body plate 11, the ear-rolling support 121 may be clamped with the left end of the plate spring 200, and the roller support 122 may support the right end of the plate spring 200, thereby facilitating sliding of the plate spring 200 in the pressing process. In this embodiment, a mode that one end is fixed and the other end is movably supported is adopted, so that the leaf spring 200 with different lengths can be adapted.

In the embodiment of the invention, the number of the positioning assemblies 12 is two, the main body plate 11 is provided with X-direction guide grooves 111 which are in sliding contact fit with the ear-rolling support 121, and the extending direction of the X-direction guide grooves 111 is consistent with the extending direction of the pipeline body 2. The two positioning components 12 are arranged at intervals along the front-rear direction, two groups of horizontal guide rails are arranged on the main body plate 11, each group of horizontal guide rails is provided with an X-shaped guide groove 111, and the distance between the two positioning components 12 can be adjusted by relatively sliding the ear rolling support 121, so that the center distance of different leaf springs 200 is adapted.

Specifically, the main body plate 11 is provided with a concave-convex block 113 for abutting against the limit lug support 121. In the embodiment of the present invention, the concave-convex block 113 includes at least four limiting surfaces with angles. The concave-convex block 113 in the embodiment is an irregular polygon, and can be abutted against the limiting ear-rolling support 121, so that the ear-rolling support 121 is fixed at a specified position according to actual use requirements, the accuracy of adjusting the ear-rolling support 121 is improved, the condition that the error is overlarge due to visual adjustment is avoided, and the positioning of the center distances of different leaf springs 200 is accurately controlled.

In another embodiment, the main body plate 11 is further provided with a Y-direction guiding groove 112 in sliding contact with the roller support 122, and the extending direction of the Y-direction guiding groove 112 is consistent with the width direction of the pipeline body 2. Two sets of vertical guide rails are arranged on the main body plate 11 in the embodiment, each set of vertical guide rails is formed with a Y-guide groove 112, and the positions of the support rollers can be adjusted to adapt to leaf springs 200 with different lengths by corresponding to the Y-guide grooves 112, so that the convenience in use of the front axle press-fitting line 100 is further improved.

In the embodiment of the present invention, the positioning mechanism 1 further includes a visual limiting block mounted on the main body plate 11, the visual limiting block can move along the extending direction and the width direction of the pipeline body 2 relative to the main body plate 11, and the visual limiting block is used for abutting against the plate spring 200 upwards. The visual limiting block in this embodiment can be mounted on the main body plate 11 by adopting a waist-shaped hole matched with a bolt and a nut in a fastening manner, the height of the visual limiting block can be adjusted by a bolt lifting manner, the extending direction and the width direction of the assembly line body 2 can be adjusted according to the different center distances of the plate springs 200, and whether the plate springs 200 are abutted against the visual limiting block can be judged in a visual manner after the adjustment and during the press mounting, so that whether the plate springs 200 are pressed in place or not can be judged.

In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims

1. Front axle press line, characterized in that the front axle press line (100) comprises:

the positioning mechanism (1) is used for positioning and bearing a plate spring (200) of the front axle;

the assembly line body (2) is provided with a press-fit station, the positioning mechanism (1) is arranged on the bearing surface of the assembly line body (2), and the assembly line body (2) is used for driving the positioning mechanism (1) to move along the extending direction of the assembly line body (2);

the gantry mechanism (3) is arranged at the press-fitting station and is provided with an assembly space (313) for accommodating the positioning mechanism (1), and the gantry mechanism (3) is used for press-fitting the plate spring (200).

2. The front axle press line according to claim 1, characterized in that the gantry mechanism (3) comprises:

the gantry frame (31) comprises two vertical frames (311) and a transverse frame (312), wherein the transverse frame (312) is connected between the two vertical frames (311) and is positioned at the top of the vertical frames (311), and the vertical frames (311) and the transverse frame (312) enclose an assembly space (313);

and the press fitting device (32) is arranged on the transverse frame (312), can stretch and retract along the up-down direction relative to the assembly line body (2), and presses the plate spring (200).

3. The front axle press line according to claim 2, characterized in that the gantry mechanism (3) further comprises an adjustor (33) mounted to the transverse frame (312), the press (32) and the transverse frame (312) being slidingly connected, the adjustor (33) being adapted to drive the press (32) to move relative to the transverse frame (312).

4. The front axle press line according to claim 2, characterized in that the front axle press line (100) comprises a support seat (4) supported between the positioning mechanism (1) and the pipeline body (2), the gantry mechanism (3) further comprises a lifter (34), the lifter (34) is mounted at the bottom of the vertical frame (311) and is used for lifting the positioning mechanism (1), and the positioning mechanism (1) is separated from the support seat (4).

5. The front axle press line according to any one of claims 1 to 4, characterized in that the positioning mechanism (1) comprises:

a main body plate (11);

the locating component (12) is installed with the main body plate (11), the locating component (12) comprises a lug rolling support (121) and a roller support (122) which are arranged at intervals in the width direction of the assembly line body (2), the lug rolling support (121) is used for being matched with one end of the plate spring (200) in a clamping mode, and the roller support (122) is used for supporting the other end of the plate spring (200) and is matched with the plate spring (200) in a rolling contact mode.

6. The front axle press-fitting line according to claim 5, characterized in that the number of the positioning assemblies (12) is two, the main body plate (11) is provided with an X-direction guide groove (111) in sliding contact with the ear support (121), and the extending direction of the X-direction guide groove (111) is consistent with the extending direction of the line body (2).

7. The front axle press line according to claim 6, characterized in that the main body plate (11) is provided with a concave-convex block (113) for abutting and limiting the ear-rolling support (121).

8. The front axle press line according to claim 7, characterized in that the relief block (113) comprises at least four mutually angled limiting surfaces.

9. The front axle press-fitting line according to claim 5, wherein the main body plate (11) is further provided with a Y-direction guide groove (112) in sliding contact with the roller support (122), and an extending direction of the Y-direction guide groove (112) is identical to a width direction of the line body (2).

10. The front axle press line according to claim 5, characterized in that the positioning mechanism (1) further comprises a visual stopper mounted to the main body plate (11), the visual stopper being movable relative to the main body plate (11) in the extending direction and the width direction of the line body (2), the visual stopper being adapted to abut the leaf spring (200) upward.