CN203853722U - Positioning mechanism - Google Patents
Positioning mechanism Download PDFInfo
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- CN203853722U CN203853722U CN201420248363.2U CN201420248363U CN203853722U CN 203853722 U CN203853722 U CN 203853722U CN 201420248363 U CN201420248363 U CN 201420248363U CN 203853722 U CN203853722 U CN 203853722U
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- detent mechanism
- positioning mechanism
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- positioning
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- 230000007246 mechanism Effects 0.000 title claims abstract description 109
- 239000000725 suspension Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000008685 targeting Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
Abstract
The utility model aims to provide a positioning mechanism applicable to large workpieces such as front floors. The positioning mechanism comprises an upper positioning mechanism and a lower positioning mechanism, and is characterized in that the lower positioning mechanism comprises a base, positioning support columns and guide portions, the positioning support columns and the guide portions are arranged on the base, and the guide portions are of cavity structures with top openings; the upper positioning mechanism comprises a frame, the frame is provided with a positioning portion and guide pins, the positioning portion is used for positioning a workpiece, the guide pins can be downwardly inserted into the guide portions, and the upper positioning mechanism is further provided with fixing mechanisms which are used for fixing the workpiece; the upper positioning mechanism and the lower positioning mechanism are provided with locking portions which are matched with one another, so that the upper positioning mechanism and the lower positioning mechanism can be fixedly locked with each other. The positioning mechanism has the advantages that the positioning stability can be guaranteed, potential safety hazards can be completely eradicated, and the welding operation convenience can be guaranteed; the positioning mechanism is applicable to stations for front floor assemblies of all vehicle types and is also applicable to stations where fixtures are large and multiple large swing arm mechanisms are required.
Description
Technical field
The utility model relates to manufacturing clamp positioning mechanism, is particularly useful for the weld parts location of the large-scale stations such as floor, front and back.
Background technology
Body in white is as an important component part of automobile, and the size of its each mounting points and precision have determined the assembly quality of total piece installing on automobile, thereby affects quality and the CSAT of car load.Therefore,, in the process of welding at body in white, each part must obtain fully effectively location.Meanwhile, along with the fast development of modern society, human engineering theory is applied further extensively, and the intensity that how to reduce operator also becomes a consideration emphasis in planning in early stage.In brief, in order to improve the assembly precision of automobile and to meet human engineering, in planning must consider each soldering part fully to locate early stage, also needs to consider operator's posture and comfort level simultaneously.
Body in white is to be formed by the different weld parts of a hundreds of geomery, for the part of moderate dimensions, adopt common detent mechanism just in realizing location, to meet the convenience of operation, but for relatively large parts such as Ji Hou floors, front floor, fixture carries out behind stable location part in guarantee, operation cannot realize, or even a lot of clamp mechanism cannot realize part is carried out to stable location, especially before the welding of seat beam in floor assembly station.
Fig. 1 is the structural representation of front floor assembly, and front floor assembly is generally made up of base plate (2) and four crossbeams (1), and the size of four crossbeams (1) can be variant a little, but basic size is similar.Crossbeam (1) apart from the Y-direction maximum distance of base plate (2) flange in 500mm left and right, in order to ensure the precision of crossbeam (1), generally can adopt two alignment pin location, therefore, crossbeam (1) locating hole has 500mm apart from the Y-direction distance of base plate (2) flange, in jig Design, also need to arrange limited block and some bindiny mechanisms, therefore, pressure arm (3) length of location crossbeam (1) is at least more than 600mm, and long pressure arm affects stability and the thrust (as shown in Figure 2) of fixture.At present, there is following several targeting scheme for the front floor assembly shown in Fig. 1:
1, bulk strength is strengthened: the thickness of the pressure arm (3) of locate crossbeam (1) is changed to 25mm by 16mm, and simultaneously the length of U-shaped limited block (4) makes into 80mm size by 30mm, in addition at the upper reinforcement that welds of pressure arm (3), as shown in Figure 2.Although this kind of scheme strengthened mechanism, through on-the-spot rigidity checking, the side-play amount of pressure arm (3) after stand under load after 10kg still reaches 0.7mm, cannot meet positioning stablity sexual demand.In addition, crossbeam (1) is by turning over finger setting, therefore pressure arm (3) needs manual operation, a station needs design length to exceed the pressure arm (3) of 600mm, so huge pressure arm (3) carries out existing in manual operation huge potential safety hazard, meanwhile, manual operation needs bed rearrangement mechanism to lose heart, and mechanism exists the potential safety hazard automatically falling after losing heart.
2,, after all mechanisms strengthen, newly increase one U-shaped spacing (5) in the end of pressure arm (3), as shown in Figure 3.This kind of scheme is through on-the-spot rigidity checking, the side-play amount of pressure arm after stand under load 10kg can reach in 0.5mm, but cannot solve the security hidden trouble that 4 manual big arm mechanisms are brought, and stopped more solder joint through strengthened pressure arm (3) enter rifle space.
3, by front floor integrated overturn location, first go up part crossbeam (1) and go up part base plate (2) again, the detent mechanism of crossbeam (1), without being designed to pressure arm upset, only need be designed to stationary positioned so.The detent mechanism of this kind of scheme is simple, good stability, and still, the welding of crossbeam (1) and base plate (2) lap-joint is all in not visible state, and solder joint operation is carried out in operator's inconvenience, has strengthened operator's labour intensity, does not meet human engineering theory.
Summary of the invention
The purpose of this utility model is to propose a kind of detent mechanism that is applicable to the large-scale workpieces such as front floor, and this kind of detent mechanism can ensure position stability, can stop again potential safety hazard, guarantees the convenience of welding operation.
Detent mechanism of the present utility model comprises detent mechanism and lower detent mechanism, and key is that described lower detent mechanism comprises base and is arranged at positioning support dagger, the guide part on base, and described guide part is open-topped cavity structure; Described upper detent mechanism comprises framework, and described framework is provided with for the location division of positioning workpieces and can inserts the guide finger in guide part downwards, and described upper detent mechanism is also provided with the fixed mechanism for fixation workpiece; Described upper detent mechanism and lower detent mechanism are provided with the tight lock part of working in coordination, so that upper detent mechanism and lower detent mechanism can be locked mutually.
In the time carrying out the location of workpiece, first utilize location division that workpiece and upper detent mechanism are positioned, then utilize fixed mechanism that workpiece is fixedly connected with upper detent mechanism, again upper detent mechanism and workpiece sling and moved to the top of lower detent mechanism, and the guide finger that makes detent mechanism is aimed at the guide part of lower detent mechanism, then make lentamente detent mechanism and workpiece fall, guide finger is inserted into downwards in guide part, make accurately to locate between detent mechanism and lower detent mechanism, when workpiece is positioned support column while withstanding, utilize tight lock part by upper detent mechanism and the locking of lower detent mechanism, complete the location of workpiece.
Specifically, described tight lock part is made up of the hinged check lock lever of piston rod that is arranged at dull and stereotyped on framework and is arranged at cylinder, one end and cylinder on base, and the middle part of described check lock lever is connected with base by rotating shaft.Drive cylinder, check lock lever is rotated around the axis under the drive of piston rod, can make the free end of check lock lever compress flat board downwards, the locking of detent mechanism and lower detent mechanism in realization.
Specifically, the alignment pin that described location division comprises locating piece and coordinates with workpiece locating hole; Described locating piece is provided with the cooperation profile conforming to workpiece end face shape, and described fixed mechanism is the magnet being arranged on locating piece.Alignment pin and locating piece can combine workpiece is positioned, and under the magneticaction of magnet, workpiece can be attracted on detent mechanism, realize temporary fixed to workpiece.
Further, for convenience of slinging of upper detent mechanism, described framework is provided with suspension ring.
Further, the top of described pilot side wall is bent to form guiding surface laterally, to facilitate guide finger to be inserted in guide part.
Further, for ease of pickup, described alignment pin is flexible pin.
Detent mechanism of the present utility model is simple in structure, entirely adopts stationary positioned, without big arm mechanism, upper convenience, has stopped potential safety hazard, can effectively ensure rigidity and the uniformity of integrated model, and effectively avoided soldering turret and entered rifle space, be convenient to employee's operation, reduce labour intensity.This detent mechanism can be applied to the front floor assembly station of all vehicles, meanwhile, larger for grip size, needs to adopt the station of more big arm mechanism, is suitable for too.
Brief description of the drawings
Fig. 1 is the structural representation on front floor.
The schematic diagram that Fig. 2,3 is existing targeting scheme.
Fig. 4 is lower detent mechanism of the present utility model and the schematic diagram that coordinates of workpiece.
Fig. 5 is upper detent mechanism of the present utility model and the schematic diagram that coordinates of workpiece.
Fig. 6 is upper detent mechanism and the schematic diagram that coordinates of lower detent mechanism.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail as effect and the operation principle etc. of the mutual alignment between the shape of related each member, structure, each several part and annexation, each several part.
Embodiment 1:
As shown in Figure 4,5, 6, the detent mechanism of the present embodiment is applicable to floor 30 on automobile, comprise detent mechanism and lower detent mechanism, lower detent mechanism comprises base 21 and is arranged at positioning support dagger 22, the guide part 23 on base 21, described guide part 23 is open-topped cavity structure, the top of guide part 23 sidewalls is bent to form guiding surface 24 laterally, to facilitate guide finger 13 to be inserted in guide part 23.
Upper detent mechanism comprises the framework 11 of top with suspension ring 12, described framework 11 is provided with the location division for locating floor 30 crossbeams on automobile and can inserts the guide finger 13 in guide part 23 downwards, and described upper detent mechanism is also provided with the fixed mechanism for floor in fixed car 30; Described upper detent mechanism and lower detent mechanism are provided with the tight lock part of working in coordination, so that upper detent mechanism and lower detent mechanism can be locked mutually.
Specifically, described tight lock part is made up of the hinged check lock lever 26 of piston rod that is arranged at the flat board 14 on framework 11 and is arranged at cylinder 25, one end and cylinder 25 on base 21, and the middle part of described check lock lever 26 is connected with base 21 by rotating shaft 27.Drive cylinder 25, check lock lever 26 27 is rotated around the shaft under the drive of piston rod, can make the free end of check lock lever 26 compress flat board 14, the locking of detent mechanism and lower detent mechanism in realization downwards.
Specifically, the alignment pin 16 that described location division comprises locating piece 15 and coordinates with workpiece locating hole; Described locating piece 15 is provided with the cooperation profile conforming to workpiece end face shape, and described fixed mechanism is the magnet (magnet does not draw in the drawings) that is arranged at locating piece 15 inside.Alignment pin 16 and locating piece 15 can combine floor on automobile 30 is positioned, and under the magneticaction of magnet, on automobile, floor 30 can be attracted on detent mechanism, realize temporary fixed to floor on automobile 30.
In the time carrying out the location on floor 30 on automobile, first utilize location division that floor on automobile 30 and upper detent mechanism are positioned, then utilize magnet that floor on automobile 30 and upper detent mechanism are fixed, sling in floor 30 on upper detent mechanism and automobile again and move to the top of lower detent mechanism, and make the guide finger 13 of detent mechanism aim at the guide part 23 of lower detent mechanism, then make lentamente floor 30 on detent mechanism and automobile fall, guide finger 13 is inserted into downwards in guide part 23, make accurately to locate between detent mechanism and lower detent mechanism, when floor on automobile 30 is positioned support column 22 while withstanding, utilize tight lock part by upper detent mechanism and the locking of lower detent mechanism, complete the location on floor 30 on automobile.
Claims (6)
1. a detent mechanism, comprises detent mechanism and lower detent mechanism, it is characterized in that described lower detent mechanism comprises base and is arranged at positioning support dagger, the guide part on base, and described guide part is open-topped cavity structure; Described upper detent mechanism comprises framework, and described framework is provided with for the location division of positioning workpieces and can inserts the guide finger in guide part downwards, and described upper detent mechanism is also provided with the fixed mechanism for fixation workpiece; Described upper detent mechanism and lower detent mechanism are provided with the tight lock part of working in coordination, so that upper detent mechanism and lower detent mechanism can be locked mutually.
2. detent mechanism according to claim 1, it is characterized in that described tight lock part is made up of the hinged check lock lever of piston rod that is arranged at dull and stereotyped on framework and is arranged at cylinder, one end and cylinder on base, the middle part of described check lock lever is connected with base by rotating shaft.
3. detent mechanism according to claim 1 and 2, is characterized in that the alignment pin that described location division comprises locating piece and coordinates with workpiece locating hole; Described locating piece is provided with the cooperation profile conforming to workpiece end face shape, and described fixed mechanism is the magnet being arranged on locating piece.
4. detent mechanism according to claim 1 and 2, is characterized in that described framework is provided with suspension ring.
5. detent mechanism according to claim 1, is characterized in that the top of described pilot side wall is bent to form guiding surface.
6. detent mechanism according to claim 1, is characterized in that described alignment pin is for flexible pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248363.2U CN203853722U (en) | 2014-05-15 | 2014-05-15 | Positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420248363.2U CN203853722U (en) | 2014-05-15 | 2014-05-15 | Positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203853722U true CN203853722U (en) | 2014-10-01 |
Family
ID=51603601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420248363.2U Active CN203853722U (en) | 2014-05-15 | 2014-05-15 | Positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203853722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215602A (en) * | 2015-10-27 | 2016-01-06 | 南车石家庄车辆有限公司 | Lorry floor press-fitting tool |
| CN107378338A (en) * | 2017-07-07 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | A kind of floor welded frock |
-
2014
- 2014-05-15 CN CN201420248363.2U patent/CN203853722U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215602A (en) * | 2015-10-27 | 2016-01-06 | 南车石家庄车辆有限公司 | Lorry floor press-fitting tool |
| CN107378338A (en) * | 2017-07-07 | 2017-11-24 | 安徽江淮汽车集团股份有限公司 | A kind of floor welded frock |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |