CN211527288U

CN211527288U - Automobile engine hood assembly testing fixture

Info

Publication number: CN211527288U
Application number: CN202020024813.5U
Authority: CN
Inventors: 张艳军; 邓文彬; 邓淑华; 刘伟
Original assignee: Wuhan Fujuduo Auto Parts Co ltd
Current assignee: Wuhan Fujuduo Auto Parts Co ltd
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-18
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses an utensil is examined to automobile engine hood assembly relates to the automotive checking fixture field, specifically includes: the engine hood comprises a base, wherein a plurality of positioning assemblies used for positioning and fixing an engine hood and a detection assembly used for detecting the engine hood are arranged on the base, each positioning assembly comprises a supporting plate fixedly arranged on the base and a movable clamping assembly arranged opposite to the supporting plate, an arc-shaped groove used for accommodating the engine hood is formed in the supporting plate, each movable clamping assembly comprises an air cylinder, a ball head body arranged on an air cylinder output shaft and a pressing block pivoted with the ball head body, and the pressing block faces the supporting plate. The utility model discloses a relative bulb body of compact heap rotates, can realize compressing tightly the engine hood surface of compact heap according to the fixed angle of engine hood surface shape self-adaptation fine setting compact heap, and the pressure of guaranteeing that the cylinder is applyed can the vertically be used in the engine hood surface, improves the fixed effect in location, and the clamping is firm.

Description

Automobile engine hood assembly testing fixture

Technical Field

The utility model relates to an automotive checking fixture field, concretely relates to utensil is examined to automobile engine hood assembly.

Background

After the automobile engine hood is manufactured, the automobile engine hood needs to be detected one by one, and the quality is guaranteed to meet the manufacturing requirements. Most of the traditional detection modes are that the automobile engine hood is manually placed on a plane table, and detection is carried out aiming at a corresponding place, so that the detection efficiency is greatly influenced, and the detection effect is poor; and the detection accuracy directly affects the quality of the engine cover. Some bonnet examines utensil on the market at present, but use loaded down with trivial details, operating procedure is more, and detection efficiency is lower, influences automobile production line's whole efficiency.

Chinese patent No. CN201821961043.6 discloses an examine utensil for automobile engine hood, comprising a base plate, the fixed skeleton that is equipped with in upper portion of bottom plate, on the skeleton respectively fixed be equipped with the benchmark dead lever, be used for with wait to detect automobile engine hood articulated portion each other, fender analog component, lamp support analog component and bonnet support, fender analog component lamp support analog component with the shape that the bonnet support constitutes is the same with the shape of waiting to detect automobile engine hood, fender analog component lamp support analog component with the bonnet support all about the central symmetry of benchmark dead lever sets up, adopts this kind of purpose of examining the utensil and can realize short-term test automobile engine hood. However, because the automobile engine hood is curved, irregular in shape and contour, the framework and the hinge part are not firmly fixed, and the automobile engine hood can only be fixed with the engine hood matched with the shape of the automobile engine hood, the engine hoods with different shapes have low utilization rate, and when the engine hood with larger structural difference of the shape is tested, the fixing device needs to be replaced, so that the utilization rate is low.

Disclosure of Invention

To the defect of prior art, the utility model provides an utensil is examined to car bonnet assembly rotates through the relative bulb body of compact heap, can realize compressing tightly the engine bonnet surface according to the fixed angle of engine bonnet surface shape self-adaptation fine setting compact heap, and guarantees that the pressure that the cylinder was applyed can the vertically be used in the engine bonnet surface, improves the fixed effect in location, and the clamping is firm.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

an automobile engine hood assembly detection tool comprises a base, wherein a plurality of positioning assemblies for positioning and fixing an engine hood and a detection assembly for detecting the engine hood are arranged on the base;

the positioning assembly comprises a supporting plate fixedly arranged on the base and a movable clamping assembly arranged opposite to the supporting plate, an arc-shaped groove used for containing the engine cover is formed in the supporting plate, the movable clamping assembly comprises an air cylinder, a ball head body arranged on an output shaft of the air cylinder and a pressing block pivoted with the ball head body, and the pressing block faces the supporting plate.

Adopt above-mentioned technical scheme: when the engine cover is required to be detected, the engine cover is placed at the arc-shaped groove of the supporting plate, the cylinder is started later, the cylinder output shaft drives the pressing block to move towards the side of the engine cover, when the pressing block is in contact with the engine cover, the pressing block rotates relative to the ball head body, the fixing angle of the pressing block can be adjusted according to the surface shape of the engine cover in a self-adaptive mode, the pressing of the pressing block on the surface of the engine cover is realized, the end face of the pressing block is completely attached to the surface of the engine cover, the pressure applied by the cylinder can be vertically applied to the surface of the engine cover, the positioning fixing effect is improved, the clamping is firm, the stability in the detection process of the.

Furthermore, one end of the compressing block, which is close to the ball head body, is provided with a hemispherical groove matched with the ball head body, the spherical radius of the hemispherical groove is larger than that of the ball head body, the edge of the hemispherical groove is provided with a limiting part, and the compressing block is sleeved on the ball head body through the hemispherical groove to form a structure that the compressing block can rotate relative to the ball head body but can not be separated from each other. In the process of applying pressure to the compressing block, because the moving direction of the cylinder output shaft and the surface of the engine cover are not necessarily in a completely vertical state, the ball head body applies force to the compressing block through the hemispherical groove, the compressing block has self-adaptive rotation capability and can rotate on the surface of the engine cover to a certain extent, so that the compressing block and the surface of the engine cover can be always in a joint state, the compressing of the engine cover is well realized, and the fixing is firm.

Furthermore, the compact heap orientation one side of backup pad is the arc terminal surface, and the engine hood of linear structure not only can be fixed to the arc terminal surface, can also fix shape, profile irregularity like curved engine hood to improve the rate of utilization.

Furthermore, the pressing block is made of PA66 engineering plastics, PA66 engineering plastics have excellent wear resistance and self-lubrication, the mechanical strength is high, the engine cover can be effectively prevented from being damaged while the engine cover is supported, in addition, the pressing force direction can be adjusted according to the engine cover, and the efficiency of positioning and fixing the workpiece is improved.

Furthermore, two sides of the ball head body are provided with a pressure spring, one end of the pressure spring is connected with the ball head body, and the other end of the pressure spring is connected with the end part of the pressing block. The compression spring is used for providing buffering and resilience force for the compression block when the compression block is stressed to rotate so as to prolong the service life of the compression block; meanwhile, certain elastic supporting force can be provided, and therefore fixing stability is improved.

Further, the detection assembly comprises a detection pin, a dial indicator, a go-no go gauge and a plurality of profile detection assemblies for detecting the profile of the surface; the profile detection assembly comprises a fixed seat, a T-shaped support and a profiling block, one end of the T-shaped support is hinged with the fixed seat through a locking pin and fixed through a fastening bolt, and the other end of the T-shaped support is fixedly provided with the profiling block.

Adopt above-mentioned technical scheme: after the locking bolt is unscrewed, the profile detection assembly can be turned back and forth along the hinged part of the fixed seat, so that the middle profile detection assembly is positioned above the engine cover or separated from the engine cover; when the detection is needed, the profile detection assembly is rotated to enable the profiling block to be in compression joint with the engine cover, whether the problem of profile step is generated or not is checked visually, and whether the size of a gap between the profiling block and the end face of the engine cover meets the requirement or not is checked through a go-no go gauge, a dial indicator and the like.

Furthermore, the bottom of base is equipped with 4 universal wheels, is convenient for remove.

The utility model discloses a working process does: when detection is needed, the engine cover is placed at the arc-shaped groove of the supporting plate, the air cylinder is started, the air cylinder output shaft drives the pressing block to tightly press and fix the engine cover, then the molded surface detection assembly is rotated, the profiling block is pressed on the engine cover, whether the problem of profile step is generated or not is visually detected, and whether the size of a gap between the profiling block and the end surface of the engine cover meets the requirement or not is detected through a go-no go gauge, a dial indicator and the like; the device is simple in use method and easy to operate.

The beneficial effects of the utility model reside in that:

1. through the relative bulb body rotation of compact heap, can finely tune the fixed angle of compact heap according to engine bonnet surface shape self-adaptation, realize that the compact heap compresses tightly on the engine bonnet surface, make compact heap terminal surface and engine bonnet surface laminate completely, and guarantee that the pressure that the cylinder was exerted can vertically be acted on the engine bonnet surface, improve the fixed effect in location, the clamping is firm, and then improves the stability in the engine bonnet testing process, is favorable to improving the detection precision.

2. The compression springs positioned on the two sides of the ball head body can provide buffering and resilience force when the compression block rotates under the stress, so that the service life of the compression block can be prolonged; meanwhile, certain elastic supporting force can be provided, and therefore fixing stability is improved.

3. The arc-shaped end face of the pressing block and the arc-shaped groove of the supporting plate are designed, so that the engine cover of a linear structure can be fixed, the engine cover with irregular shape and irregular profile can be fixed, and the applicability of the checking fixture is high.

Drawings

FIG. 1 is a schematic structural view of an automotive hood assembly inspection tool in embodiment 1;

FIG. 2 is a schematic structural view of the movable clamping assembly of embodiment 1 cooperating with a support plate to fix a hood;

FIG. 3 is a schematic structural view of a movable clamping assembly according to embodiment 1;

FIG. 4 is a schematic structural view of a profile sensing assembly according to embodiment 1;

in the figure: 1. a base; 2. a positioning assembly; 21. a support plate; 22. a cylinder; 23. a ball head body; 24. a compression block; 25. a hemispherical recess; 26. a limiting part; 27. a pressure spring; 3. a profile detection assembly; 31. a fixed seat; 32. a T-shaped bracket; 321. erecting the plate; 322. a transverse plate; 33. a contour block; 34. a locking pin; 35. fastening a bolt; 4. and (4) a dial indicator.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example 1

An automobile engine hood assembly detection tool is shown in figures 1-3 and comprises a base 1, wherein a plurality of positioning assemblies 2 for positioning and fixing an engine hood and detection assemblies for detecting the engine hood are arranged on the base 1, and 4 universal wheels are further arranged at the bottom of the base 1;

the positioning assembly 2 comprises a supporting plate 21 fixedly arranged on the base 1 and a movable clamping assembly arranged opposite to the supporting plate 21, an arc-shaped groove for accommodating an engine cover is formed in the supporting plate 21, the movable clamping assembly comprises an air cylinder 22, a ball head body 23 arranged on an output shaft of the air cylinder 22 and a pressing block 24 pivoted with the ball head body 23, and the pressing block 24 is arranged towards the supporting plate 21; one side of the pressing block 24 facing the support plate 21 is an arc-shaped end surface, referring to fig. 3, one end of the pressing block 24 close to the ball head body 23 is provided with a hemispherical groove 25 matched with the ball head body 23, the spherical radius of the hemispherical groove 25 is greater than that of the ball head body 23, the edge of the hemispherical groove 25 is provided with a limiting part 26, and the pressing block 24 is sleeved on the ball head body 23 through the hemispherical groove 25 to form a structure that the pressing block 24 can rotate relative to the ball head body 23 but cannot be separated from each other. In the process that the ball head body 23 applies force to the pressing block 24 through the hemispherical groove 25, the pressing block 24 has self-adaptive rotation capacity and can rotate on the surface of the engine hood to a certain extent, so that the pressing block 24 and the surface of the engine hood can be always in a fit state, the positioning and fixing effects are improved, and the clamping is firm. In this embodiment, the pressing block 24 is made of PA66 engineering plastic.

In order to further improve the stability of fixation, two sides of the ball head body 23 are provided with a pressure spring 27, one end of the pressure spring 27 is connected with the ball head body 23, and the other end is connected with the end of the pressing block 24. The compression spring 27 is used for providing buffering and resilience force for the compression block 24 when the compression block is stressed to rotate so as to prolong the service life of the compression block 24; meanwhile, certain elastic supporting force can be provided, and therefore fixing stability is improved.

The detection assembly comprises a detection pin, a dial indicator 4, a go-no go gauge and a plurality of profile detection assemblies 3 for detecting the profile of the surface; referring to fig. 4, the profile detection assembly 3 includes a fixed seat 31, a T-shaped bracket 32 and a profile block 33, one end of the T-shaped bracket 32 is hinged to the fixed seat 31 through a locking pin 34 and is fixed through a fastening bolt 35, and the other end of the T-shaped bracket 32 is fixedly provided with the profile block 33. Specifically, a U-shaped groove is formed in the fixing seat 31, the T-shaped support 32 includes a transverse plate 322 and a vertical plate, the width of the vertical plate is matched with the width of the U-shaped groove, one end of the vertical plate is embedded into the U-shaped groove, the vertical plate is hinged to the fixing seat 31 by a pin shaft, the other end of the vertical plate is fixedly connected to the middle of the transverse plate 322, namely, a through hole matched with the locking pin 34 is formed in the side face of one end, far away from the transverse plate 322, of the fixing seat 31, the locking pin 34 penetrates through the through hole to enable the vertical plate to be hinged to the fixing seat 31, and the bottom end of.

The utility model discloses a working process does: when detection is needed, the engine cover is placed at the arc-shaped groove of the supporting plate 21, the air cylinder 22 is started, the output shaft of the air cylinder 22 drives the pressing block 24 to press and fix the engine cover, then the molded surface detection assembly 3 is rotated, the molded block 33 is pressed on the engine cover, whether the problem of molded surface step difference is generated or not is checked visually, and whether the size of a gap between the molded block 33 and the end face of the engine cover meets the requirement or not is checked through a go-no go gauge, a dial indicator 4 and the like; the device is simple in use method and easy to operate.

Claims

1. The automobile engine hood assembly detection tool comprises a base (1), wherein a plurality of positioning assemblies (2) used for positioning and fixing an engine hood and a detection assembly used for detecting the engine hood are arranged on the base (1), the detection assembly is characterized in that the positioning assemblies (2) comprise a supporting plate (21) fixedly arranged on the base (1) and a movable clamping assembly arranged opposite to the supporting plate (21), an arc-shaped groove used for accommodating the engine hood is formed in the supporting plate (21), the movable clamping assembly comprises an air cylinder (22), a ball head body (23) arranged on an output shaft of the air cylinder (22) and a pressing block (24) pivoted with the ball head body (23), and the pressing block (24) faces the supporting plate (21).

2. The automobile hood assembly testing fixture according to claim 1, wherein a hemispherical groove (25) matched with the ball head body (23) is formed in one end, close to the ball head body (23), of the pressing block (24), the spherical radius of the hemispherical groove (25) is larger than that of the ball head body (23), and a limiting part (26) is arranged on the edge of the hemispherical groove (25).

3. The automobile hood assembly testing fixture according to claim 1, wherein one side of the pressing block (24) facing the support plate (21) is an arc-shaped end surface.

4. The automobile hood assembly testing fixture according to claim 1, wherein the compression block (24) is made of PA66 engineering plastic.

5. The automobile hood assembly testing fixture according to claim 1, wherein a compression spring (27) is arranged on each side of the ball body (23), one end of the compression spring (27) is connected with the ball body (23), and the other end of the compression spring (27) is connected with the end of the pressing block (24).

6. The automobile engine hood assembly detection tool according to claim 1, characterized in that the detection assembly comprises a detection pin, a dial indicator (4), a go-no go gauge and a plurality of profile detection assemblies (3) for detecting the profile of the surface, the profile detection assemblies (3) comprise a fixed seat (31), a T-shaped support (32) and a profile block (33), one end of the T-shaped support (32) is hinged with the fixed seat (31) through a locking pin (34) and fixed through a fastening bolt (35), and the profile block (33) is fixedly arranged at the other end of the T-shaped support (32).

7. The automobile hood assembly testing fixture according to any one of claims 1-6, wherein 4 universal wheels are arranged at the bottom of the base (1).