CN212902999U

CN212902999U - Composite checking fixture for detecting elongated bracket

Info

Publication number: CN212902999U
Application number: CN202021274155.1U
Authority: CN
Inventors: 陈颖锋; 范科
Original assignee: Shenzhen Element Technology Co ltd
Current assignee: Shenzhen Element Technology Co ltd
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-04-06
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a compound utensil of examining for detecting rectangular shape support, including base, kicking block and apron, the top surface of base is equipped with the profile detection groove, and the kicking block liftable is located the profile detection inslot, and the top surface of kicking block is equipped with two locating pins, and the top surface of base is located to the apron lid, and the bottom surface of apron is equipped with the pin groove, and the internal face slope in pin groove sets up. The composite checking fixture can comprehensively check the center distance of two holes of the strip-shaped support, the width appearance deformation and the pin angle deformation, the defects of the strip-shaped support can be effectively identified through one-time checking, the checking precision is high, the checking efficiency is far higher than that of separate checking, and the problem that the product of the strip-shaped structure is difficult to check is solved; the injection molding machine can meet metal injection molding products with strict requirements on assembly dimensions such as center distance, flatness and angle, is wide in applicable objects, and simple and convenient to operate, and therefore has important practical value in industrial production.

Description

Composite checking fixture for detecting elongated bracket

Technical Field

The utility model relates to a size detection equipment technical field especially relates to a utensil is examined in complex for detecting rectangular shape support.

Background

Metal Injection Molding (MIM) is a process of preparing a part with a specific shape by injecting a feed obtained by banburying and mixing Metal and a high molecular binder into a mold through an injection Molding machine, and obtaining a final product through the procedures of degreasing, sintering, post-treatment and the like after the part is molded. The size shrink and the deformation of certain degree can take place for the unburned bricks in sintering process, even carried out the plastic to the product, the size of product, shape still can have certain difference, can satisfy drawing tolerance and customer assembly requirement in order to guarantee the product, and the inspection process is indispensable, and its purpose will warp, the product screening of size oversize.

In particular, the slender support-type structural members (such as a side volume key support and a side fingerprint support) in the side keys of the mobile phone have strict requirements on linearity, width, flatness and angle, and the deformation degree of the slender support-type structural members directly influences the assembly gap, the pressing effect of the keys and the like.

Such elongated stent products have the following characteristics:

1. aspect ratios are large, typically 16: 1;

2. two screw through holes for assembling and positioning are formed in the length direction, and the center distance of the holes is required to be +/-0.08 mm;

3. two outer side walls in the width direction are assembly surfaces, the width tolerance is +/-0.03 mm, and the maximum accumulated deformation of the head part and the tail part is allowed to be 0.06 mm;

4. the product has two to participate in at width direction, and thickness tolerance is 0.03mm, and all has the draft, and the draft requires that the maximum deflection is within 0.5 degree.

Common test protocols are:

firstly, detecting by a manual detection tool: the method comprises the following steps of completing the steps of detecting the center distance of a positioning hole in the length direction of a product, detecting the deformation of the product in the width direction in the second step, and detecting the angle of the product in the third step. However, the mode of carrying out inspection by adopting three processes has extremely low efficiency, and the customer assembly effect cannot be simulated during separate inspection, so that misjudgment is easy to occur, and the inspection precision is difficult to ensure.

Secondly, automatic optical detection equipment is adopted, a specific vibration conveying disc and a specific fixed jig are required to be made, the product has a risk of aggravating deformation in the conveying process, the product is irregular in shape, the outer side wall and the pin position are provided with 0.5-1-degree drawing dies, and the measurement precision is difficult to guarantee; the development period of the automatic equipment is long, and the price is high.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: a composite detection tool for detecting a long-strip-shaped support can improve detection efficiency and detection precision.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a compound utensil of examining for detecting rectangular shape support, includes base, kicking block and apron, the top surface of base is equipped with the profile and detects the groove, the kicking block liftable is located the profile detects the inslot, the top surface of kicking block is equipped with two locating pins, the apron lid is located the top surface of base, the bottom surface of apron is equipped with the pin groove, the internal face slope setting in pin groove.

Further, still including floating round pin and a plurality of round pin of leading, floating round pin with lead the round pin and locate respectively on the base and protrusion in respectively the top surface of base, floating round pin for the base liftable sets up, the apron is connected floating round pin and use floating round pin is the center pin for the rotatable setting of base, be equipped with on the apron with lead the round pin matched with and lead the positive hole.

Furthermore, a counter bore matched with the floating pin is arranged on the base, and a limiting part matched with the step surface of the counter bore is arranged on the floating pin.

Furthermore, a limiting pin used for preventing the cover plate from being separated from the floating pin is arranged on the floating pin.

Furthermore, the floating pin and the guide pin respectively protrude out of the bottom surface of the base to elevate the base.

Further, still include the poker rod, have on the side of base along the waist shape hole that the base direction of height set up, waist shape hole intercommunication the profile detection groove, the poker rod liftable is located waist shape is downthehole to be connected the kicking block.

Furthermore, one positioning pin is a kidney-shaped positioning pin, and the other positioning pin is a cylindrical positioning pin.

Furthermore, the two positioning pins are respectively arranged close to two ends of the ejector block.

Furthermore, the opening of the pin slot is provided with a guide surface.

Further, the guide surface is an inclined surface or an arc surface.

The beneficial effects of the utility model reside in that: this utensil is examined in complex can be synthesized and examine rectangular shape support two holes centre-to-centre spacing, width appearance deformation and participate in the angular deformation, and rectangular shape support product is through once inspection can effectively discern above bad, and the inspection precision is high, and detection efficiency is higher than separately the detection efficiency who examines far away, has solved the difficult problem of product inspection of rectangular shape structure. Meanwhile, metal injection molding products with strict requirements on assembly dimensions such as center distance, flatness and angle, such as a mobile phone side volume key support, a side fingerprint support and other structures, can be met, and the method is wide in applicable objects, simple and convenient to operate, and therefore has important practical value in industrial production.

Drawings

Fig. 1 is a perspective view of a composite testing fixture for testing an elongated bracket according to a first embodiment of the present invention;

fig. 2 is a schematic overall structure diagram of a composite testing fixture for detecting a strip-shaped bracket according to a first embodiment of the present invention (after a cover plate is covered);

fig. 3 is a schematic structural diagram of a first embodiment of the present invention for detecting a base in an elongated bracket;

fig. 4 is a schematic structural diagram of another view angle for detecting the base in the elongated bracket according to the first embodiment of the present invention;

fig. 5 is a schematic structural diagram of a first embodiment of the present invention for detecting a top block in an elongated bracket;

fig. 6 is a schematic structural diagram of a first embodiment of the present invention for detecting a cover plate in an elongated bracket;

fig. 7 is a schematic structural view of an elongated bracket according to a first embodiment of the present invention.

Description of reference numerals:

1. a base; 2. a top block; 3. a cover plate; 4. a contour detection groove; 5. positioning pins; 6. a pin slot; 7. a floating pin; 8. a pilot pin; 9. a pilot hole; 10. a counter bore; 11. a limiting part; 12. a spacing pin; 13. a poke rod; 14. a waist-shaped hole; 15. a strip-shaped bracket; 16. a screw passing hole; 17. a guide surface.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 7, a composite detection tool for detecting a strip-shaped support comprises a base 1, a top block 2 and a cover plate 3, wherein a contour detection groove 4 is formed in the top surface of the base 1, the top block 2 is arranged in the contour detection groove 4 in a lifting manner, two positioning pins 5 are arranged on the top surface of the top block 2, the cover plate 3 is arranged on the top surface of the base 1 in a covering manner, a pin groove 6 is formed in the bottom surface of the cover plate 3, and the inner wall surface of the pin groove 6 is arranged in an inclined manner.

The structure/working principle of the utility model is as follows: two locating pins 5 on the kicking block 2 can detect the centre-to-centre spacing of two holes of rectangular shape support, and the width appearance that the profile detection groove 4 can detect rectangular shape support warp, participates in groove 6 and can detect and participate in angular deformation.

From the above description, the beneficial effects of the present invention are: this utensil is examined in complex can be synthesized and examine rectangular shape support two holes centre-to-centre spacing, width appearance deformation and participate in the angular deformation, and rectangular shape support product is through once inspection can effectively discern above bad, and the inspection precision is high, and detection efficiency is higher than separately the detection efficiency who examines far away, has solved the difficult problem of product inspection of rectangular shape structure. Meanwhile, the metal injection molding product with strict requirements on assembly dimensions such as center distance, flatness, angle and the like can be met, the application objects are wide, and the operation is simple and convenient, so that the metal injection molding product has important practical value in industrial production.

Further, still include floating round pin 7 and a plurality of round pin 8 of leading, floating round pin 7 with lead round pin 8 and locate respectively on the base 1 and protrusion in respectively the top surface of base 1, floating round pin 7 for base 1 liftable sets up, apron 3 is connected floating round pin 7 and use floating round pin 7 for the center pin is for base 1 rotatable setting, be equipped with on the apron 3 with lead round pin 8 matched with and lead positive hole 9.

According to the description, the cover plate 3 is not easy to lose, and the service life of the composite checking fixture is prolonged; the cover plate 3 can cover the base 1 along the vertical direction, the positioning is accurate, and the detection precision and the accuracy of the composite detection tool are improved; the detection personnel are convenient to operate, and the detection efficiency is improved.

Furthermore, a counter bore 10 matched with the floating pin 7 is arranged on the base 1, and a limiting part 11 matched with the step surface of the counter bore 10 is arranged on the floating pin 7.

As can be known from the above description, the maximum ascending stroke of the floating pin 7 is limited, the floating pin 7 is prevented from accidentally separating from the base 1, and the structural stability of the composite checking fixture is guaranteed.

Furthermore, a limit pin 12 for preventing the cover plate 3 from being separated from the floating pin 7 is arranged on the floating pin 7.

As can be seen from the above description, the arrangement of the limit pin 12 can prevent the cover plate 3 from accidentally separating from the floating pin 7, and the structural stability of the composite checking fixture is ensured.

Furthermore, the floating pin 7 and the pilot pin 8 respectively protrude from the bottom surface of the base 1 to elevate the base 1.

According to the description, the contour detection groove 4 can be set into the through groove, the machining difficulty and the machining precision requirement of the contour detection groove 4 are convenient to reduce, the bottom end of the top block 2 can be exposed out of the base 1, the manufacturing consumable of the base 1 is favorably reduced, and the manufacturing cost of the composite checking fixture is reduced.

Further, still include poker rod 13, have on the side of base 1 and follow waist shape hole 14 that base 1 direction of height set up, waist shape hole 14 intercommunication the profile detection groove 4, poker rod 13 liftable is located waist shape hole 14 is interior and is connected kicking block 2.

As can be seen from the above description, the setting of the poke rod 13 facilitates the operation of the jacking block 2 by the detection personnel to lift, reduces the labor intensity of the detection personnel, and improves the detection efficiency.

Furthermore, one of the positioning pins 5 is a kidney-shaped positioning pin 5, and the other positioning pin 5 is a cylindrical positioning pin 5.

As can be seen from the above description, the specific shape of the positioning pin 5 corresponds to the shape of the screw through hole 16 on the elongated bracket.

Further, the two positioning pins 5 are respectively arranged near two ends of the top block 2.

As can be seen from the above description, the specific position of the positioning pin 5 corresponds to the position of the screw through hole 16 on the elongated bracket.

Further, a guide surface 17 is arranged at the opening of the pin slot 6.

As can be seen from the above description, the guide surface 17 is provided to facilitate alignment of the pin slot 6 with the product during inspection.

Further, the guide surface 17 is a slope or a cambered surface.

As can be seen from the above description, the guide surface 17 is simple in construction and easy to machine.

Example one

Referring to fig. 1 to 7, a first embodiment of the present invention is: the utility model provides a compound utensil of examining for detecting rectangular shape support, includes base 1, kicking block 2 and apron 3, the top surface of base 1 is equipped with the profile and detects groove 4, the liftoff locating of kicking block 2 in the profile detects the groove 4, the top surface of kicking block 2 is equipped with two locating pins 5, apron 3 lid is located the top surface of base 1, the bottom surface of apron 3 is equipped with pin groove 6, the internal face slope setting of pin groove 6.

As can be easily understood, the base 1 is used as a general outline gauge of the strip-shaped support, and the size of the outline detection groove 4 is designed according to the gap between the median value of the strip-shaped support and the maximum deformation tolerance (such as 0.03mm on a single side); the shapes of the two positioning pins 5 conform to the maximum tolerance (such as single side 0.05mm) of the center distance of the two screw through holes 16 on the strip-shaped bracket 15; the cover plate 3 is used as a general outline gauge of the strip-shaped bracket pin, and the pin slot 6 is designed according to the maximum entity of the strip-shaped bracket and the maximum allowable deformation angle (for example, the single side has a gap of 0.015mm, and the inner wall surface of the pin slot 6 is shifted outwards by 0.5 degrees).

Please refer to fig. 1 and 2, in order to facilitate the operation of the inspector, the composite inspection tool for inspecting the elongated bracket further includes a floating pin 7 and a plurality of guiding pins 8, the floating pin 7 and the guiding pins 8 are respectively disposed on the base 1 and respectively protrude from the top surface of the base 1, the floating pin 7 is arranged in a lifting manner with respect to the base 1, the cover plate 3 is connected to the floating pin 7 and rotatably disposed with respect to the base 1 with the floating pin 7 as a central axis, the cover plate 3 is provided with guiding holes 9 matched with the guiding pins 8, and the guiding pins 8 and the guiding holes 9 are matched to guide the cover plate 3. Referring to fig. 1 to 4, in detail, the base 1 is rectangular, the number of the guide pins 8 is three, three corners of the base 1 are respectively provided with mounting holes for mounting the guide pins 8, the other corner is provided with a counter bore 10 matched with the floating pin 7, the floating pin 7 is provided with a limiting portion 11 matched with a step surface of the counter bore 10, and the depth of a large-diameter section of the counter bore 10 is the maximum distance (optionally 15mm) for pulling up the floating pin 7. The cover plate 3 can be lifted upwards together with the floating pin 7, and can rotate 360 degrees by taking the floating pin 7 as an axis, so that the elongated bracket in the contour detection groove 4 can be taken out conveniently.

As shown in fig. 1 and 2, the floating pin 7 is provided with a limit pin 12 for preventing the cover plate 3 from separating from the floating pin 7, in brief, the cover plate 3 is movably sleeved on the floating pin 7, and in the process of pulling up the cover plate 3, the cover plate 3 drives the floating pin 7 to move up by driving the limit pin 12 to move up.

Optionally, the floating pin 7 and the pilot pin 8 respectively protrude from the bottom surface of the base 1 to elevate the base 1.

Still include poker rod 13, have on a side of base 1 and follow waist shape hole 14 that base 1 direction of height set up, waist shape hole 14 intercommunication the profile detection groove 4, poker rod 13 liftable is located waist shape hole 14 is interior and is connected kicking block 2. It will be readily appreciated that it is also possible to change the waist-shaped hole 14 to a rectangular hole without regard to the ease of processing.

Referring to fig. 5 and 7, since one of the two screw through holes 16 of the elongated bracket 15 in this embodiment is a runway hole and the other is a circular hole, one of the two positioning pins 5 on the top block 2 is a kidney-shaped positioning pin 5, and the other positioning pin 5 is a cylindrical positioning pin 5. Specifically, the two positioning pins 5 are respectively arranged near two ends of the top block 2.

As shown in fig. 6, further, a guide surface 17 is provided at an opening of the pin slot 6, and the guide surface 17 is an inclined surface or an arc surface.

The use process of the composite detection tool for detecting the elongated bracket in the embodiment is briefly described as follows:

1) placing a composite checking fixture for detecting the elongated bracket on a horizontal workbench;

2) lifting the cover plate 3 and rotating outwards to ensure that the contour detection groove 4 is not blocked;

3) slightly sleeving the positioning pins 5 into the strip-shaped support, sleeving the waist-shaped positioning pins 5, and sleeving the cylindrical positioning pins 5, wherein if the strip-shaped support can be completely placed into the two positioning pins 5, the strip-shaped support is good, otherwise, the strip-shaped support is defective;

4) after the strip-shaped support is placed to be flat, the pulling rod is pushed downwards to the bottom dead center of the waist-shaped hole 14, if the strip-shaped support and the jacking block 2 slide smoothly together, the strip-shaped support is good, otherwise, the strip-shaped support is defective;

5) the pulling rod pushes upwards to drive the strip-shaped bracket to move upwards until the pulling rod pushes the strip-shaped bracket to the top dead center of the waist-shaped hole 14, defective products detected in the step 4) are taken out at the moment, and the good products are not taken out firstly;

6) rotating the cover plate 3 by taking the floating pin 7 as an axis until the other three pilot pins 8 are completely pilot;

7) the cover plate 3 slightly slides downwards, the cover plate can be automatically superposed into the strip-shaped support through the guide surface 17, and the bottom surface of the cover plate 3 is completely attached to the top surface of the base 1, so that the strip-shaped support is good, otherwise, the strip-shaped support is defective;

8) lifting the cover plate 3, rotating outwards to ensure that the strip-shaped bracket is not blocked, and taking out the detected strip-shaped bracket;

9) and judging whether the product is qualified according to the result, and finishing the detection action.

To sum up, the utility model provides a compound utensil of examining for detecting rectangular shape support can synthesize the deformation of inspection rectangular shape support two holes centre-to-centre spacing, width appearance and participate in angular deformation, and rectangular shape support product is through once inspection can effectively discern above bad, and the inspection precision is high, and detection efficiency is higher than separately the detection efficiency who examines far away, has solved the difficult problem of product inspection of elongated structure. Meanwhile, metal injection molding products with strict requirements on assembly dimensions such as center distance, flatness and angle, such as a mobile phone side volume key support, a side fingerprint support and other structures, can be met, and the method is wide in applicable objects, simple and convenient to operate, and therefore has important practical value in industrial production.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a compound utensil of examining for detecting rectangular shape support which characterized in that: including base, kicking block and apron, the top surface of base is equipped with the profile and detects the groove, the kicking block liftable is located the profile detects the inslot, the top surface of kicking block is equipped with two locating pins, the apron lid is located the top surface of base, the bottom surface of apron is equipped with the pin groove, the internal face slope setting in pin groove.

2. The composite detection tool for detecting the elongated bracket according to claim 1, characterized in that: still including floating round pin and a plurality of round pin of leading, floating round pin with lead the round pin and locate respectively on the base and protrusion respectively in the top surface of base, floating round pin for base liftable sets up, the apron is connected floating round pin and with floating round pin is for the center pin rotatable setting of base, be equipped with on the apron with lead the round pin matched with and lead the positive hole.

3. The composite detection tool for detecting the elongated bracket according to claim 2, characterized in that: the base is provided with a counter bore matched with the floating pin, and the floating pin is provided with a limiting part matched with the step surface of the counter bore.

4. The composite detection tool for detecting the elongated bracket according to claim 2, characterized in that: and the floating pin is provided with a limit pin for preventing the cover plate from separating from the floating pin.

5. The composite detection tool for detecting the elongated bracket according to claim 2, characterized in that: the floating pin and the guide pin respectively protrude out of the bottom surface of the base to elevate the base.

6. The composite detection tool for detecting the elongated bracket according to claim 1, characterized in that: still include the poker rod, have on a side of base along the waist shape hole that the base direction of height set up, waist shape hole intercommunication the profile detection groove, the poker rod liftable is located waist shape is downthehole and connect the kicking block.

7. The composite detection tool for detecting the elongated bracket according to claim 1, characterized in that: one of the positioning pins is a kidney-shaped positioning pin, and the other positioning pin is a cylindrical positioning pin.

8. The composite detection tool for detecting the elongated bracket according to claim 1, characterized in that: the two positioning pins are respectively arranged close to two ends of the ejector block.

9. The composite detection tool for detecting the elongated bracket according to claim 1, characterized in that: the opening of the pin slot is provided with a guide surface.

10. The composite detection tool for detecting the elongated bracket according to claim 9, wherein: the guide surface is an inclined surface or an arc surface.