CN215448739U

CN215448739U - Bending test jig

Info

Publication number: CN215448739U
Application number: CN202120901990.1U
Authority: CN
Inventors: 陈锋
Original assignee: Chadu Shandong Automation Equipment Co ltd
Current assignee: Chadu Shandong Automation Equipment Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-01-07
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a bending test jig which comprises an upper base plate, a lower base plate, a first centering adjusting device and a second centering adjusting device, wherein the first centering adjusting device and the second centering adjusting device are identical in structure and are symmetrically arranged, a left-handed nut and a right-handed nut are symmetrically arranged on the second centering adjusting device, the inner sides of the left-handed nut and the right-handed nut are sequentially and fixedly provided with an adjusting sleeve and a sliding seat, an arc-shaped long hole is formed between the adjusting sleeve and the sliding seat, the sliding seat is movably connected to a groove of the upper base plate through a T-shaped bolt, one end of the second centering adjusting device is also provided with an adjusting hand wheel which drives the left-handed nut and the right-handed nut to reversely translate through a left-handed ball screw and a right-handed ball screw, and when the adjusting hand wheel rotates, the T-shaped bolt is rapidly loosened. This scheme adopts upper and lower integral connection and can dismantle the structure of separation, and the calibration of being convenient for, storage and use, simultaneously, the centering degree is high and left and right hand nut is adjustable, and it is high to detect the precision.

Description

Bending test jig

Technical Field

The utility model relates to the field of automatic detection, in particular to a bending test jig.

Background

In the production practice of automatic detection equipment, it is an important content to perform mechanical bending property detection on flat plate raw materials (such as organic glass and the like). Particularly in the field of electronic products (such as the bearing capacity and the folding endurance of flexible display panels, metal fittings and the like), accurate and stable test data are obtained and need to be ensured by the accuracy, the stability and the repeatability of a test fixture.

The existing detection method mainly comprises two modes of manual detection and mechanical detection, wherein the manual detection mainly comprises the steps of fixing a test product through a fixing device, repeatedly bending in a manual mode, and continuously adjusting the bending angle by using an adjusting mechanism in the bending process to finally obtain a test result, for example, the Chinese patent application number is as follows: 201820219325.2, the chinese patent with the patent name of "a detection device bends", it discloses a detection device bends, including the base, still includes a support frame, support frame fixed mounting is on the base, still fixed mounting has the regulating block that can follow vertical direction adjusting position between support frame and the base, install a detachable fixed block between regulating block and the base, still be provided with a recess on the base, install a detachable fixed plate on its recess. The device has the advantages that the FPC board can be fixed by utilizing the structures of the adjusting block and the fixing block, the repeated folding test can be carried out on the FPC board in a manual mode, the folding resistance of the FPC board can be determined by observing the damage degree of the folding position of the FPC board, the structure and the operation are simple, the device is not suitable for detection with strong repeatability, time and labor are wasted, meanwhile, the accuracy of manual detection is low, and accurate data cannot be obtained.

The existing mechanical detection mainly enables the product to be pressed through the driving of the air cylinder, the method solves the problem that manual testing wastes time and labor, but the problem that the manual testing is time-consuming and labor-consuming is solved, because the impact force of bending the air cylinder is large, the test data span is large, the testing precision of the product (particularly the product with high precision requirement) is not high, and meanwhile, most of the folding detection products on the market are inconvenient to adjust and cannot adapt to the testing of various products.

SUMMERY OF THE UTILITY MODEL

The novel purpose is exactly in order to solve the above-mentioned problem that exists among the prior art, provides a bending test tool.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a bending test tool, includes upper plate, the lower plate that upper and lower symmetry set up, upper plate and lower plate inboard are provided with the first centering adjusting device and the second centering adjusting device that the structure is the same and the symmetry sets up, the symmetry is provided with left-handed nut and dextrorotation nut on the second centering adjusting device, the inboard of left-handed nut and dextrorotation nut all is fixed in proper order and is provided with adjusting collar and sliding seat, be provided with the arc slot hole between adjusting collar and the sliding seat, the sliding seat passes through T type bolt movably and connects the groove of upper plate, the second centering adjusting device's one end still is provided with and drives through left-handed ball screw, dextrorotation ball screw the adjusting handle of the reverse translation of left-handed nut and dextrorotation nut, when adjusting handle rotates, T type bolt loosens fast.

Preferably, a V-shaped groove is formed in the top of the sliding seat, an ejector pin fixed by an ejector pin holding block is arranged in the V-shaped groove, and the surface of the ejector pin can roll.

Preferably, a scale is arranged on the surface of the upper base plate, and the scale position of the scale is parallel to the movement tracks of the left-handed nut and the right-handed nut.

Preferably, bearing seats are respectively arranged at two ends of the first centering adjusting device and the second centering adjusting device, and the first centering adjusting device and the second centering adjusting device are connected with the upper base plate and the lower base plate through the bearing seats.

Preferably, the corners of the upper bottom plate and the lower bottom plate are vertically provided with detachable equal-height blocks, and two ends of the equal-height blocks are protruded and respectively embedded into the upper bottom plate and the lower bottom plate.

Preferably, the top of the upper bottom plate is connected with a connecting rod of a tensile testing machine.

Preferably, the device also comprises two centering check pin shafts vertically penetrating through the upper base plate and the lower base plate, wherein the centering check pin shafts are detachably fixed between the upper base plate and the lower base plate through pin holes formed in the upper base plate and the lower base plate and extend to the outside of the upper base plate.

Preferably, the upper bottom plate and the lower bottom plate are respectively provided with a product positioning block, and the position of the product positioning block is adjustable.

The technical scheme of the utility model has the following beneficial effects:

1. the bending test jig adopts the structure of the left and right rotating ball screws and the nuts, so that the position of the central line of the jig is always unchanged, the indicating scale is configured, convenience and rapidness are realized, the centering pin shaft is used for checking, the centering is reliable, and the detection precision is high.

2. The bending test jig adopts an upper integral connection structure, a lower integral connection structure and a detachable separation structure, and is convenient to calibrate, store and use.

3. The upper bottom plate and the lower bottom plate in the bending test jig are connected with the sliding seat through the T-shaped bolts, can be quickly screwed and loosened, and are convenient to adjust.

4. The design of sliding seat and adjusting sleeve junction has the arc slot hole in the bending test tool of this scheme, but the position of one side (left side or right side) sliding seat is adjusted a little, makes measured data more accurate.

5. According to the scheme, the thimble rolls on the surface of the product after contacting the product, so that the influence of overlarge local position pressure on test data is reduced.

Drawings

FIG. 1: is a front view of the bending test fixture;

FIG. 2: is a cross-sectional view A-A of FIG. 1 of the present invention;

FIG. 3: is a cross-sectional view in the present invention;

FIG. 4: is a cross-sectional view B-B of FIG. 3 of the present invention;

FIG. 5: is a top view of a bending test fixture of the present invention;

FIG. 6: is a perspective view of a bending test fixture of the present invention.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

The bending test fixture disclosed by the utility model is explained in the following with reference to the accompanying drawings: as shown in fig. 1, the adjustable floor comprises an upper floor 1 and a lower floor 5 which are arranged up and down symmetrically, a first centering adjusting device 4 and a second centering adjusting device 2 which are identical in structure and are arranged symmetrically are arranged at the inner sides of the upper floor 1 and the lower floor 5, bearing seats 21 are respectively arranged at two ends of the first centering adjusting device 4 and the second centering adjusting device 2, the first centering adjusting device 4 and the second centering adjusting device 2 are fixedly connected with the upper floor 1 and the lower floor 5 through the bearing seats 21, detachable equal-height blocks 3 are vertically arranged at the corners of the upper floor 1 and the lower floor 5, two ends of the equal-height blocks 3 protrude and are respectively embedded into the upper floor 1 and the lower floor 5, specifically, two ends of two long sides of the upper floor 1 and the lower floor 5 are respectively provided with one equal-height block 3, so that the upper floor 1, the lower floor 5 and the equal-height blocks 3 are assembled into a frame structure, the supporting device is used for supporting the upper bottom plate 5 and the lower bottom plate 5, two ends of the equal-height block 3 are in a convex shape, the parts of the upper bottom plate 1, the lower bottom plate 5 and the equal-height block 3, which are connected, are provided with slotted holes matched with the convex blocks at two ends of the equal-height block 3, the convex parts of the equal-height block 3 are embedded into the surfaces of the upper bottom plate 1 and the lower bottom plate 5 through the slotted holes, the lower parts at two ends of the convex blocks are respectively abutted against the bottom plate and the centering adjusting device, and the convex blocks can be detachably connected with the bottom plate through bolts and the like.

Further, as shown in fig. 1-4, a left-handed nut 23 and a right-handed nut 27 are symmetrically arranged on the second centering adjusting device 2, an adjusting sleeve 24 and a sliding seat 25 are sequentially and fixedly arranged on the inner sides of the left-handed nut 23 and the right-handed nut 27, an arc-shaped long hole is arranged between the adjusting sleeve 24 and the sliding seat 25, the position of the one-sided sliding seat 25 can be slightly adjusted, the sliding seat 25 is movably connected to the groove of the upper base plate 1 through a T-shaped bolt 9, specifically, a groove is arranged at the connection position of the upper base plate 1 and the sliding seat 25, one end of the sliding seat 25 extends into the groove, meanwhile, two T-shaped bolts 9 are arranged in the groove, when the sliding seat 25 is embedded into the groove, the sliding seat 25 is connected with the upper base plate 1 through the T-shaped bolts 9, and one end of the second centering adjusting device 2 is further provided with a left-handed ball screw 22, Dextrorotation ball screw 28 drives the adjusting handle 29 of levogyration nut 23 and the reverse translation of dextrorotation nut 27, levogyration ball screw 22, dextrorotation ball screw 28 simultaneous movement, and drive at every turn the distance homogeneous phase of levogyration nut 23 and the translation of dextrorotation nut 27 makes the central line position of tool remain unchanged, when adjusting handle 29 rotates, T type bolt 9 quick-release, sliding seat 25 is translated along with levogyration nut 27 and adjusting collar 24, accomplishes the distance and adjusts.

Further, a V-shaped groove is formed in the top of the sliding seat 25, an ejector pin 26 fixed by an ejector pin holding block 210 is arranged in the V-shaped groove, specifically, the ejector pin holding block 210 is fixed to each of two ends of the ejector pin, when a product 11 is tested, the product is placed on the ejector pin 26, and the ejector pin 26 rolls on the surface of the product 11 after contacting the product, so that the influence of excessive local pressure on test data is reduced.

Further, the upper and lower bottom plates 5 are respectively provided with a product positioning block 10, the position of the product positioning block 10 is adjustable, specifically, the product positioning block 10 is used for positioning the position of the product in the horizontal direction, and the position of the product positioning block 10 can be adjusted left and right as required.

Further, the surface of the upper base plate 1 is provided with a scale 7, and the scale position of the scale 7 is parallel to the movement tracks of the left-handed nut 23 and the right-handed nut 27, so that the adjustment widths of the sliding seat 25, the adjusting sleeve 24, the left-handed nut 27 and the right-handed nut 27 can be measured conveniently and instantly, and data measurement is facilitated.

The specific structure of the second centering adjusting device 2 is the same as that of the first centering adjusting device 4, and the position of the second centering adjusting device 2 is symmetrical to that of the first centering adjusting device 4, which is not described in detail herein.

As shown in fig. 1, 5 and 6, the bending test fixture further comprises two centering check pins 8 vertically penetrating through the upper base plate 1 and the lower base plate 5, wherein the centering check pins 8 are detachably fixed between the upper base plate 1 and the lower base plate 5 through pin holes arranged on the upper base plate 1 and the lower base plate 5 and extend to the outside of the upper base plate 1, the pin holes can be arranged at any position except for the movement tracks of the adjusting parts of the first centering adjusting device 4 and the second centering adjusting device 2, so as to ensure the centering condition of the upper and lower base plates 5 and the first centering adjusting device 4 and the second centering adjusting device 2, and the centering check pins 8 can be easily taken out of the pin holes.

During testing, the bending test jig is installed on a tensile testing machine, the lower base plate 5 is installed on a tension meter on a workbench of the testing machine, the top of the upper base plate 1 is connected with a connecting rod 6 of the tensile testing machine, after the connection is confirmed, the equal-height block 3 is detached from the space between the upper base plate 1 and the lower base plate 5, at the moment, the upper base plate 1 and the lower base plate 5 are in a separated state, a centering check pin shaft 8 penetrates through the upper base plate 5 and the lower base plate 5 and is taken out of a pin hole after the centering is confirmed, meanwhile, an adjusting hand wheel 29 on a first centering adjusting device 4 and a second centering adjusting device 2 is rotated, a thimble 26 on a sliding seat 25 is adjusted to a position required by testing, a product positioning block 10 is utilized to position a product 11 to a proper position, the product 11 is placed on the thimble 26, the tensile testing machine is started, the connecting rod 6 of the tensile testing machine drives the upper base plate 1 and the first centering adjusting device 4 to integrally move downwards until the product 11 is contacted, and the connecting rod of the tensile testing machine is continuously pressed down to bend the product 11 to be broken, so that test data are obtained.

The utility model has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the utility model.

Claims

1. The utility model provides a bending test tool, includes upper plate, the lower plate that upper and lower symmetry set up, upper plate and lower plate inboard are provided with the first centering adjusting device and the second centering adjusting device that the structure is the same and the symmetry sets up, its characterized in that: the symmetry is provided with left-handed nut and dextrorotation nut on the second is to well adjusting device, the inboard of left-handed nut and dextrorotation nut all is fixed in proper order and is provided with adjusting collar and sliding seat, be provided with the arc slot hole between adjusting collar and the sliding seat, the sliding seat passes through T type bolt movably to be connected the groove of upper plate, the second is to well adjusting device's one end still is provided with and drives through levogyration ball screw, dextrorotation ball screw the adjusting handle of the reverse translation of left-handed nut and dextrorotation nut, when adjusting handle rotates, T type bolt loosens fast.

2. The bending test fixture of claim 1, wherein: the top of sliding seat is provided with V type groove, be provided with the thimble through thimble holding block is fixed in the V type groove, the thimble surface can roll.

3. The bending test fixture of claim 1, wherein: and a scale is arranged on the surface of the upper base plate, and the scale position of the scale is parallel to the movement tracks of the left-handed nut and the right-handed nut.

4. The bending test fixture of claim 1, wherein: bearing seats are respectively arranged at two ends of the first centering adjusting device and the second centering adjusting device, and the first centering adjusting device and the second centering adjusting device are connected with the upper base plate and the lower base plate through the bearing seats.

5. The bending test fixture of claim 1, wherein: the edge of the upper bottom plate and the edge of the lower bottom plate are vertically provided with detachable equal-height blocks, and two ends of the equal-height blocks are protruded and respectively embedded into the upper bottom plate and the lower bottom plate.

6. The bending test fixture of claim 1, wherein: the top of the upper bottom plate is connected with a connecting rod of a tensile testing machine.

7. The bending test fixture of claim 1, wherein: the centering checking pin shaft is detachably fixed between the upper base plate and the lower base plate through pin holes formed in the upper base plate and the lower base plate and extends to the outside of the upper base plate.

8. The bending test fixture of claim 1, wherein: the upper bottom plate and the lower bottom plate are respectively provided with a product positioning block, and the position of the product positioning block is adjustable.