CN217913581U - Automatic centering mechanism for welding line of front auxiliary frame - Google Patents
Automatic centering mechanism for welding line of front auxiliary frame Download PDFInfo
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- CN217913581U CN217913581U CN202222368480.XU CN202222368480U CN217913581U CN 217913581 U CN217913581 U CN 217913581U CN 202222368480 U CN202222368480 U CN 202222368480U CN 217913581 U CN217913581 U CN 217913581U
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Abstract
The utility model provides an automatic centering mechanism that preceding sub vehicle frame welding line was used, the left and right sides of preceding sub vehicle frame is equipped with the reference column that extends from top to bottom respectively, and centering mechanism includes positioning unit, synchronization unit, clamping unit, and positioning unit includes the left and right sides two positioning seats that set up side by side at interval, wherein is formed with the locating hole with the reference column assorted on each positioning seat, and the center of line aligns the setting with the benchmark center of preceding sub vehicle frame between two locating holes; the synchronous unit comprises a guide rail and a connecting rod assembly, wherein the two positioning seats are respectively connected to the guide rail in a sliding mode, and the connecting rod assembly is connected between the two positioning seats and drives the two positioning seats to synchronously move in the opposite direction or move in the opposite direction. The utility model discloses only need to put the front auxiliary frame in place, can realize that the center of front auxiliary frame aligns with the benchmark center, guarantee that the front auxiliary frame is automatic puts in place placed in the middle, the deviation can not appear, satisfy the location requirement of front auxiliary frame on the welding line; meanwhile, the structure is simple and reliable, the operation is convenient, and the centering efficiency is high.
Description
Technical Field
The utility model belongs to centering mechanism field, concretely relates to automatic centering mechanism that preceding sub vehicle frame welding line was used.
Background
The subframe can be regarded as a framework of the front axle and the rear axle, and is a component of the front axle and the rear axle. The subframe is not a complete frame, but merely a bracket that supports the front and rear axles and the suspension, through which the axles and suspension are then connected to the "main frame", conventionally referred to as the "subframe". The function of the auxiliary frame is to isolate vibration and noise and reduce direct entering into the carriage.
At present, in preceding sub vehicle frame welding production line, because be difficult to ensure when welding preceding sub vehicle frame that the heat distributes evenly on the sub vehicle frame, consequently more or less all can have some deformation problems that are difficult to avoid after the sub vehicle frame welding of preceding is accomplished to lead to the holistic central skew of preceding sub vehicle frame, influence the spare part size positioning in the subsequent handling.
However, the conventional positioning device needs to perform measurement and fine adjustment after coarse positioning, which results in long operation time and difficulty in avoiding center line offset caused by measurement error.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a brand-new automatic centering mechanism that preceding sub vehicle frame welding line was used.
In order to solve the technical problem, the utility model discloses take following technical scheme:
an automatic centering mechanism for a welding line of a front auxiliary frame is used for centering adjustment of the front auxiliary frame, wherein the left side and the right side of the front auxiliary frame are respectively provided with a positioning column extending up and down; the synchronous unit comprises a guide rail and a connecting rod assembly, the guide rail and the connecting rod assembly extend along the left and right directions, the two positioning seats are respectively connected to the guide rail in a sliding mode, the connecting rod assembly is connected between the two positioning seats and drives the two positioning seats to synchronously move in the opposite directions or move in the opposite directions, during centering, the positioning columns are correspondingly inserted into the positioning holes, and the clamping unit is used for clamping the front auxiliary frame in the front and back directions, the left and right directions and the up and down directions.
Preferably, the automatic centering mechanism further comprises a limiting unit, the limiting unit is provided with two limiting areas which are arranged side by side at intervals, and the two positioning seats are correspondingly positioned in the two limiting areas respectively.
Specifically, each positioning seat is skew about the relative benchmark center in the spacing district that corresponds, and the offset is 1mm. Set up like this, guarantee that the preceding sub vehicle frame product that welding size accords with this tolerance range can place in this centering mechanism, select the preceding sub vehicle frame product that is not conform to the dimensional requirement simultaneously to ensure follow-up processingquality.
Preferably, the limiting unit comprises two limiting module groups, wherein each limiting module group comprises two limiting modules which are arranged at intervals from left to right, and a limiting area is formed between the two limiting modules; and/or before centering, the distance from the positioning hole on the positioning seat to the reference center is equal to the design distance from the positioning column to the reference center.
Furthermore, each group of limiting module groups further comprises an elastic piece connected between each limiting module and the corresponding positioning seat. By the arrangement, after the centering adjustment is finished and the front auxiliary frame is taken away, the positioning hole can be automatically restored to the initial position, and the positioning column of the next product can be conveniently aligned to the positioning hole quickly for centering adjustment.
Preferably, the top opening edge of the positioning hole is gradually narrowed from top to bottom. Set up like this, play the guide effect, when the robot grabs a motion top and down transfer the piece, preceding sub vehicle frame product can be very light put into.
Preferably, the connecting rod assembly comprises a first connecting rod rotatably connected to the positioning seat on the left side, a second connecting rod rotatably connected to the positioning seat on the right side, and a third connecting rod rotatably connected to the first connecting rod and the second connecting rod from two end portions respectively; the synchronous unit further comprises a reference seat arranged between the two positioning seats, a rotating shaft extending up and down and intersecting with the reference center, and a third connecting rod is rotatably connected to the rotating shaft from the middle part. The device is simple in structure and convenient to install and implement.
Furthermore, an extension part horizontally extending towards one side is formed on the third connecting rod, the synchronizing unit further comprises a driving cylinder connected with the extension part, the driving cylinder drives the third connecting rod to rotate around the rotating shaft, and the two positioning holes are aligned with the corresponding positioning columns up and down. Set up like this, except can realizing automatic centering and adjusting, can also drive two positioning seats through the cylinder and remove to order about the locating hole and align with the reference column, realize mechanical centering, improve the centering success rate.
Preferably, the clamping units are arranged on the left side and the right side of the front subframe respectively in two groups, each clamping unit comprises a first clamping cylinder and a second clamping cylinder which are fixed on the corresponding positioning seats respectively and arranged at intervals in the front and at the back, the first clamping cylinders and the second clamping cylinders can tightly support the front subframe in the left-right direction and the up-down direction, and the resultant force of the first clamping cylinders and the second clamping cylinders on the front subframe can tightly support the front subframe in the front-back direction.
In addition, two sets of clamping units are symmetrically arranged, and in each set of clamping unit, one of the first clamping cylinder and the second clamping cylinder abuts against the top end of the corresponding positioning column.
Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:
the utility model discloses a cooperation of positioning unit, synchronizing unit, clamping unit only needs to put the front auxiliary frame in place, can realize that the center of front auxiliary frame aligns with the benchmark center, guarantees that the front auxiliary frame is automatic puts in place in the middle, can not appear the deviation, satisfies the positioning requirement of front auxiliary frame on the welding line; meanwhile, the structure is simple and reliable, the operation is convenient, and the centering efficiency is high.
Drawings
FIG. 1 is a schematic view of the installation of the automatic centering mechanism on the welding line of the front auxiliary frame of the present invention;
FIG. 2 is a schematic front view of a front subframe product of the present invention;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a schematic perspective view of the automatic centering mechanism of the present invention;
FIG. 5 is a top view of FIG. 4;
FIG. 6 isbase:Sub>A schematic sectional view taken along line A-A in FIG. 5;
wherein: A. a centering mechanism; 1. a positioning unit; 10. positioning seats; k. positioning holes; 2. a limiting unit; 20. a limiting module; 21. an elastic member; 3. a synchronization unit; 30. a base; 31. a guide rail; 32. a connecting rod assembly; 321. a first link; 322. a second link; 323. a third link; a. an extension portion; 33. a reference base; 34. a rotating shaft; 35. a driving cylinder; 4. a clamping unit; 41. a first clamping cylinder; 42. a second clamping cylinder;
B. a front subframe; b0, a positioning column; s, reference center.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1 to 6, the automatic centering mechanism a for a front subframe welding line according to the present embodiment is used for centering adjustment of a center of a front subframe B and a reference center s in the welding line, wherein positioning posts B0 extending vertically are provided on both left and right sides of the front subframe B, respectively.
In this example, the automatic centering mechanism a includes a positioning unit 1, a stopper unit 2, a synchronizing unit 3, and a clamping unit 4.
Specifically, the positioning unit 1 includes two positioning seats 10 symmetrically arranged left and right, wherein each positioning seat 10 is formed with a positioning hole k matched with the positioning column B0, and the center of the connecting line between the two positioning holes k is aligned with the reference center s of the front subframe B. Before centering, the distance from the positioning hole k on each positioning seat 10 to the reference center is equal to the design distance from the positioning column B0 to the reference center s.
Meanwhile, the top opening edge of each positioning hole k is gradually narrowed from top to bottom, and when the positioning holes are centered, the positioning columns B0 are correspondingly inserted into the positioning holes k from top to bottom. Set up like this, play the guide effect, when the robot grabs a motion top and down transfers the piece, preceding sub vehicle frame product can be very light put into.
Specifically, the limiting unit 2 is formed with two limiting areas which are arranged side by side in parallel at intervals, and the two positioning seats 10 are respectively and correspondingly located in the two limiting areas.
The limiting unit 2 comprises two limiting module groups which are arranged in a bilateral symmetry manner, each limiting module group comprises two limiting modules 20 which are arranged at left and right intervals, a limiting area is formed between the two limiting modules 20, each positioning seat 10 is deviated left and right relative to a reference center s in the corresponding limiting area, and the deviation amount is +/-1 mm. Set up like this, guarantee that the preceding sub vehicle frame product that welding size accords with this tolerance range can place in this centering mechanism, select the preceding sub vehicle frame product that is not conform to the dimensional requirement simultaneously to ensure follow-up processingquality.
In order to further facilitate the implementation of the present solution, each set of limiting modules further includes an elastic member 21 connected between each limiting module 20 and the corresponding positioning seat 10. Set up like this, can guarantee to accomplish at every turn that centering is adjusted and take away preceding sub vehicle frame back, the locating hole can automatic recovery to initial position, makes things convenient for the reference column of next product to aim at the locating hole fast and carry out centering adjustment. The elastic member 21 in this embodiment is a spring.
In this embodiment, the synchronizing unit 3 includes a base 30, a guide rail 31 extending along the left-right direction, and a connecting rod assembly 32, wherein the two positioning bases 10 are respectively slidably connected to the guide rail 31, the connecting rod assembly 32 is connected between the two positioning bases 10 and drives the two positioning bases 10 to synchronously move toward each other or move away from each other,
specifically, the two bases 30 are fixedly connected to the welding line side by side in the left-right direction, the guide rail 31 is divided into two sections and is respectively fixed on the bases 30, and the two limiting modules 20 in each limiting module group are fixedly connected to the left side and the right side of the corresponding base 30.
Specifically, the link assembly 32 includes a first link 321 rotatably connected to the positioning seat 10 on the left side, a second link 322 rotatably connected to the positioning seat 10 on the right side, and a third link 323 rotatably connected to the first link 321 and the second link 322 from both ends, respectively.
In order to further facilitate the implementation of the present solution, the synchronizing unit 3 further includes a reference seat 33 disposed between the two positioning seats 10 and fixed on the welding line, a rotating shaft 34 extending up and down and intersecting with the reference center s, and a third link 323 is rotatably connected to the rotating shaft 34 from the middle. The device is simple in structure and convenient to install and implement.
Meanwhile, an extension portion a horizontally extending to one side is formed on the third connecting rod 323, the synchronizing unit 3 further includes a driving cylinder 35 connected to the extension portion a, wherein the driving cylinder 35 drives the third connecting rod 323 to rotate around the rotating shaft 34, and the two positioning holes k are aligned with the corresponding positioning posts B0 up and down. Set up like this, except can realizing automatic centering and adjusting, can also drive two positioning seats through the cylinder and remove to order about the locating hole and align with the reference column, realize mechanical centering, improve centering success rate.
In this example, the clamping units 4 are used to clamp the front subframe B in the front-rear direction, the left-right direction, and the up-down direction, respectively.
Specifically, the clamping units 4 are two sets and are respectively arranged on the left side and the right side of the front subframe B, wherein each set of clamping units 4 comprises a first clamping cylinder 41 and a second clamping cylinder 42 which are respectively fixed on the corresponding positioning seat 10 and are arranged at the front and the back at intervals, the first clamping cylinder 41 and the second clamping cylinder 42 can respectively support the front subframe B in the left-right direction and the up-down direction, and the resultant force of the first clamping cylinder 41 and the second clamping cylinder 42 on the front subframe B can support the front subframe B in the front-back direction.
In addition, two sets of clamping units 4 are symmetrically arranged, and in each set of clamping units 4, one of the first clamping cylinder 41 and the second clamping cylinder 42 abuts against the top end of the corresponding positioning column B0.
Therefore, the present embodiment has the following advantages:
1. through the matching of the positioning unit, the synchronizing unit and the clamping unit, the center of the front auxiliary frame can be aligned with the reference center only by installing the front auxiliary frame in place, the front auxiliary frame is ensured to be automatically centered in place, no deviation occurs, and the positioning requirement of the front auxiliary frame on a welding line is met;
2. the structure is simple and reliable, the operation is convenient, and the centering efficiency is high;
3. ensuring that the front auxiliary frame products with the welding sizes meeting the tolerance range can be placed in the centering mechanism, and screening out the front auxiliary frame products which do not meet the size requirements to ensure the subsequent processing quality;
4. except that can realize automatic centering and adjust, can also drive two positioning seats through the cylinder and remove to order about the locating hole and align with the reference column, realize mechanical centering, improve the centering success rate.
The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides an automatic centering mechanism that preceding sub vehicle frame welding line was used, its centering that is used for preceding sub vehicle frame is adjusted, wherein the left and right sides of preceding sub vehicle frame is equipped with reference column, its characterized in that extend from top to bottom respectively: the centering mechanism comprises a positioning unit, a synchronizing unit and a clamping unit, wherein the positioning unit comprises two positioning seats which are arranged side by side at intervals left and right, a positioning hole matched with the positioning column is formed in each positioning seat, and the center of a connecting line between the two positioning holes is aligned with the reference center of the front auxiliary frame; the synchronous unit comprises a guide rail and a connecting rod assembly, the guide rail and the connecting rod assembly extend along the left and right direction, the two positioning seats are respectively connected to the guide rail in a sliding mode, the connecting rod assembly is connected between the two positioning seats and drives the two positioning seats to synchronously move in the opposite directions or move in the opposite directions, the positioning columns are correspondingly inserted into the positioning holes during centering, and the clamping unit is used for clamping the front auxiliary frame in the front and back direction, the left and right direction and the up and down direction.
2. The self-centering mechanism for a front subframe weld line of claim 1, wherein: the automatic centering mechanism further comprises a limiting unit, two limiting areas which are arranged side by side in the left and right direction at intervals are formed in the limiting unit, and the two positioning seats are correspondingly located in the two limiting areas respectively.
3. The automatic centering mechanism for the front subframe welding line according to claim 2, characterized in that: each positioning seat is deviated left and right relative to the reference center in the corresponding limiting area, and the deviation amount is +/-1 mm.
4. The self-centering mechanism for a front subframe weld line of claim 2 or 3, wherein: the limiting unit comprises two limiting module groups, wherein each limiting module group comprises two limiting modules which are arranged at intervals from left to right, and a limiting area is formed between the two limiting modules; and/or before centering, the distance from the positioning hole on the positioning seat to the reference center is equal to the design distance from the positioning column to the reference center.
5. The automatic centering mechanism for the front subframe welding line according to claim 4, characterized in that: each group of limiting module group also comprises an elastic part connected between each limiting module and the corresponding positioning seat.
6. The self-centering mechanism for a front subframe weld line of claim 1, wherein: the top opening edge of the positioning hole is gradually narrowed from top to bottom.
7. The self-centering mechanism for a front subframe weld line of claim 1, wherein: the connecting rod assembly comprises a first connecting rod rotatably connected to the positioning seat on the left side, a second connecting rod rotatably connected to the positioning seat on the right side, and a third connecting rod rotatably connected to the first connecting rod and the second connecting rod from two end parts respectively; the synchronous unit further comprises a reference seat arranged between the two positioning seats, a rotating shaft extending up and down and intersected with the reference center, and the third connecting rod is rotatably connected to the rotating shaft from the middle part.
8. The self-centering mechanism for a front subframe weld line of claim 7, wherein: the third connecting rod is further provided with an extending part which extends horizontally towards one side, the synchronizing unit further comprises a driving air cylinder which is connected with the extending part, the driving air cylinder drives the third connecting rod to rotate around the rotating shaft, and the two positioning holes are aligned with the corresponding positioning columns up and down.
9. The self-centering mechanism for a front subframe weld line of claim 1, wherein: the clamping units are arranged on the left side and the right side of the front auxiliary frame respectively, each clamping unit comprises a first clamping cylinder and a second clamping cylinder which are fixed on the corresponding positioning seats respectively and are arranged at intervals in the front-back direction, the first clamping cylinders and the second clamping cylinders can tightly support the front auxiliary frame in the left-right direction and the up-down direction, and the resultant force of the first clamping cylinders and the second clamping cylinders on the front auxiliary frame can tightly support the front auxiliary frame in the front-back direction.
10. The self-centering mechanism for a front subframe weld line of claim 9, wherein: the two groups of clamping units are symmetrically arranged, and in each group of clamping units, one of the first clamping cylinder and the second clamping cylinder abuts against the top end of the corresponding positioning column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222368480.XU CN217913581U (en) | 2022-09-06 | 2022-09-06 | Automatic centering mechanism for welding line of front auxiliary frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222368480.XU CN217913581U (en) | 2022-09-06 | 2022-09-06 | Automatic centering mechanism for welding line of front auxiliary frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217913581U true CN217913581U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222368480.XU Active CN217913581U (en) | 2022-09-06 | 2022-09-06 | Automatic centering mechanism for welding line of front auxiliary frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217913581U (en) |
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2022
- 2022-09-06 CN CN202222368480.XU patent/CN217913581U/en active Active
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