The hole position detecting mechanism of car bottom side longeron assembly checking tool
Technical field
The utility model belongs to the detection technique field, position, hole of each assembly forming vehicle body, refers in particular to the hole position detecting mechanism of a kind of car bottom side longeron assembly checking tool.
Background technology
Each assembly of composed of car carriage, after welding, needs to measure in corresponding cubing, and judge that the deviation of the parts after welding and designing requirement is whether within tolerance value, whether the part after welding is qualified.
The position, hole of parts is detected and is needed special hole position detecting mechanism, and wherein, this detection is divided into again part beforehand control to detect and part volume production detects with quick; The hole position detecting mechanism that part beforehand control detects needs to be equipped with test pin, and part volume production need be equipped with line pin with the hole position detecting mechanism detected fast, especially in product development stage, testing staff often needs the test pin and the line pin that switch hole position detecting mechanism, and the labour intensity of testing staff is larger.
The detecting step being equipped with the hole position detecting mechanism of test pin is as follows: parts to be detected are put into corresponding measurement in cubing by (1), locate simultaneously, clamp; (2) testing staff is manually by the setting hole of test pin patchhole position detecting mechanism; (3) lift test pin on, judge that can test pin insert the position, hole on parts.
The detecting step being equipped with the hole position detecting mechanism of line pin is as follows: parts to be detected are put into corresponding measurement in cubing by (1), locate simultaneously, clamp; (2) line pin is manually inserted identical setting hole by testing staff, until the tip of line pin contacts with parts; (3) rotated a circle by line pin with hand, line pin depicts a circle on parts; (4) take out line pin, and open the detent mechanism of cubing, rise parts and check position, hole bias direction and offset distance; Ideally, it should be two concentric circless that the circle that detect aperture is formed sells with line the circle drawn, and the diameter of a circle drawn by line pin is greater than the hole on plate.If two circles be deviation between concentric circles or two circles within the tolerance allowed, then prove that design parts are consistent with produced parts, up-to-standard; If the deviation existed is greater than the tolerance of permission, then these parts are defective, can adjust, adjust in the tolerance of designing requirement according to the direction of deviation to distance to corresponding fixture.
But due to the interference of other pick-up unit in cubing and parts, reviewer's line is more difficult, and the assembly of vehicle body must be sling after line, leave the distance that pilot hole is certain, ability measured deviation value, the labour intensity of testing staff is comparatively large, and accuracy in detection is not high.
Summary of the invention
It is simple that the purpose of this utility model is to provide a kind of structure, safe and reliable, can the hole position detecting mechanism of car bottom side longeron assembly checking tool accurately.
The purpose of this utility model is achieved in that
The hole position detecting mechanism of car bottom side longeron assembly checking tool, shank location-plate is fixed with at the top panel of support, the centre of shank location-plate front portion is fixed with guide pin bushing, the middle part of guide pin bushing is equipped with line and detects one pin, described line detects one pin and comprises a cylindrical shell, the side of cylindrical shell upper surface upwards forms the projection of line, and the bottom of cylindrical shell is provided with pilum, and the middle part of pilum upper end forms the detection cylinder of detect aperture position; Described detection cylinder is located in cylindrical shell, and cylindrical shell is stretched out in its upper end.
Preferably, the below of described pilum is provided with the supporting plate of L shape, and line described in the transverse part support of supporting plate detects one pin, and the vertical part of supporting plate is fixedly mounted on the sidewall of support by lock screw.
Preferably, described support is I type support, and I type support comprises square upper and lower panel, and upper and lower panel is connected as one by T-shaped middle frame; The area of lower panel is greater than the area of top panel.
The hole position detecting mechanism of car bottom side longeron assembly checking tool, shank location-plate is fixed with at the top panel of support, the centre of shank location-plate front portion is fixed with guide pin bushing, the middle part of guide pin bushing is equipped with line and detects one pin, described line detects one pin and comprises cylindrical shell and pilum, and the side of cylindrical shell upper surface upwards forms the projection of line; The upper end of pilum is provided with the groove stretched into for cylindrical shell lower end, and the bottom of cylindrical shell is stretched in described groove, and the central authorities of groove form the detection cylinder of detect aperture position, detects cylinder and is located in cylindrical shell; Inwall and the outer wall spline fitted detecting cylinder of described cylindrical shell, the detection cylinder below cylindrical shell is set with spring, and the upper end of spring is against the lower end of cylindrical shell, and the lower end of spring is against on groove bottom wall.
Preferably, fluid is provided with in described groove.
Preferably, the below of described pilum is provided with the supporting plate of L shape, and line described in the transverse part support of supporting plate detects one pin, and the vertical part of supporting plate is fixedly mounted on the sidewall of support by lock screw.
Preferably, described support is I type support, and I type support comprises square upper and lower panel, and upper and lower panel is connected as one by T-shaped middle frame; The area of lower panel is greater than the area of top panel.
The utility model gives prominence to compared to existing technology and useful technique effect is:
Test pin and line pin are integrated by the utility model, overcome traditional cubing when detecting hole in piece part position, need use test pin respectively, the shortcoming of line pin, be subject in practice space, structure and sight line obstruction less, operate more easy.
The utility model adopts I type support as matrix, I type support itself is without internal stress, by also there is not the problems such as size distortion after exact instrument processing in it, a relatively important guarantee is served to the precision of ultra-large type cubing, the life cycle of car bottom side longeron assembly checking tool is made to be extended for 5 years from original 2 years, greatly improve serviceable life and the stability of car bottom side longeron assembly checking tool, create again in the same industry one new impossible.
Accompanying drawing explanation
Fig. 1 is the stereographic map of embodiment one of the present utility model.
Fig. 2 is the vertical view of embodiment one of the present utility model.
Fig. 3 is the structure diagram of embodiment one of the present utility model.
Fig. 4 is the structure diagram of embodiment two of the present utility model.
Fig. 5 is that the line in Fig. 4 detects the A-A cut-open view integrally sold.
Fig. 6 is the schematic diagram being provided with car bottom side of the present utility model longeron assembly checking tool.
In figure: 1-supporting plate; 2-pilum; 3-cylindrical shell; 4-guide pin bushing; 5-is protruding; 6-detects cylinder; 7-shank location-plate; 8-support; 9-support; 10-transverse part; 11-vertical part; 12-detects cylinder; 13-cylindrical shell; 14-spring; 15-groove; 16-pilum; 81-top panel; 82-middle frame; 83-lower panel;
100-car bottom side longeron assembly checking tool; 101-hole position detecting mechanism.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, see Fig. 1-5:
Embodiment one, as Figure 1-3, the hole position detecting mechanism 101 of car bottom side longeron assembly checking tool is arranged on car bottom side longeron assembly checking tool 100, hole position detecting mechanism 101 is: the top panel of support 8 is fixed with shank location-plate 7, the centre of shank location-plate 7 front portion is fixed with guide pin bushing 4, the middle part of guide pin bushing 4 is equipped with line and detects one pin, described line detects one pin and comprises a cylindrical shell 3, the side of cylindrical shell 3 upper surface upwards forms the projection 5 of line, the bottom of cylindrical shell 3 is provided with pilum 2, and the middle part of pilum 2 upper end forms the detection cylinder 6 of detect aperture position; Described detection cylinder 6 is located in cylindrical shell 3, and cylindrical shell 3 is stretched out in its upper end.
Preferably, the below of described pilum 2 is provided with the supporting plate 1 of L shape, and line described in transverse part 10 support of supporting plate 1 detects one pin, and the vertical part 11 of supporting plate 1 is fixedly mounted on the sidewall of support 8 by lock screw.
Preferably, described support 8 is I type support, and I type support comprises square upper and lower panel 81,83, upper and lower panel 81, and 83 are connected as one by T-shaped middle frame 82; The area of lower panel 83 is greater than the area of top panel 81.
Embodiment two, as illustrated in figures 4-5, the hole position detecting mechanism of car bottom side longeron assembly checking tool, shank location-plate 7 is fixed with at the top panel of support 8, the centre of shank location-plate 7 front portion is fixed with guide pin bushing 4, the middle part of guide pin bushing 4 is equipped with line and detects one pin, and described line detects one pin and comprises cylindrical shell 13 and pilum 16, and the side of cylindrical shell 13 upper surface upwards forms the projection 5 of line; The upper end of pilum 16 is provided with the groove 15 stretched into for cylindrical shell 13 lower end, and the bottom of cylindrical shell 13 is stretched in described groove 15, and the central authorities of groove 15 form the detection cylinder 12 of detect aperture position, detects cylinder 12 and is located in cylindrical shell 13; Inwall and the outer wall spline fitted detecting cylinder 12 of described cylindrical shell 13, the detection cylinder 12 below cylindrical shell 13 is set with spring 14, and the upper end of spring 14 is against the lower end of cylindrical shell 13, and the lower end of spring 14 is against on groove 15 diapire.
Preferably, be provided with fluid in described groove 15, fluid can lubricate each parts, improves serviceable life.
Preferably, the below of described pilum 16 is provided with the supporting plate 1 of L shape, and line described in the transverse part support of supporting plate 1 detects one pin, and the vertical part of supporting plate is fixedly mounted on the sidewall of support 8 by lock screw.
Preferably, described support is I type support, and I type support comprises square upper and lower panel, and upper and lower panel is connected as one by T-shaped middle frame; The area of lower panel is greater than the area of top panel.
The difference of embodiment one and embodiment two is that the structure of line detection one pin is different, and its basic boom is identical.Test pin and line pin are all integrated by two kinds of designs, overcome traditional cubing when detecting hole in piece part position, need use test pin respectively, the shortcoming of line pin, be subject in practice space, structure and sight line obstruction less, operate more easy.
In the design of embodiment one, when operating personnel need test pin, directly grasp pilum 2 and upwards mention, can by treating that gaging hole position judges whether position, hole satisfies the criteria according to the detection cylinder 6 on pilum 2; Corresponding, when operating personnel need line pin, directly grasp cylindrical shell 3 and upwards mention, then rotating cylinder 3 one weeks, the work of line can be completed.
In the design of embodiment two, when operating personnel need test pin, can only need mention pilum 16 can by treating that gaging hole position judges whether position, hole satisfies the criteria according to detection cylinder 12; When operating personnel need line to sell, only need rotate pilum 16 1 weeks on the basis of mentioning pilum 16, protruding 5 can be made to rule at component surface;
The utility model proposes a kind of conception based on embodiment two at this: on the base plate of cubing, arrange a leverage, one end of leverage is arranged on below pilum 16, the other end stretches out cubing outside as force side, when operating personnel just can mention pilum 16 in the outside detected easily to leverage force, the motor driving pilum 16 to rotate is set in the side of support 8 again, the detection realizing position, hole that the sensor in conjunction with some necessity just can be very easy and line work.
The utility model adopts I type support as matrix, I type support itself is without internal stress, by also there is not the problems such as size distortion after exact instrument processing in it, a relatively important guarantee is served to the precision of ultra-large type cubing, the life cycle of car bottom side longeron assembly checking tool is made to be extended for 5 years from original 2 years, greatly improve serviceable life and the stability of car bottom side longeron assembly checking tool, create again in the same industry one new impossible.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.