CN211627161U - Panel shaping detects sample centering device - Google Patents
Panel shaping detects sample centering device Download PDFInfo
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- CN211627161U CN211627161U CN201921509558.7U CN201921509558U CN211627161U CN 211627161 U CN211627161 U CN 211627161U CN 201921509558 U CN201921509558 U CN 201921509558U CN 211627161 U CN211627161 U CN 211627161U
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Abstract
The utility model provides a panel shaping detects sample centering device mainly relates to the check out test set field. Panel shaping detects sample centering device, the on-line screen storage device comprises a base, set up coaxial leading fixing base and rearmounted fixing base on the base, run through same root in the slide opening of leading fixing base and rearmounted fixing base to the well handle, the centering handle includes centering head and sliding part, set up the scale on the sliding part outer wall, set up the spring in the sliding part, the spring is located between centering head and the rearmounted fixing base, overhead fixed connection piece centering can be dismantled to the centering, it sets up the location separation blade to slide on the sliding part. The beneficial effects of the utility model reside in that: the utility model discloses carry out more accurate centering with sample and terrace die, the centering process has stop device's participation, and operation process is more simple quick, can ensure the accurate analysis of sheet material shaping limit.
Description
Technical Field
The utility model relates to a check out test set field specifically is panel shaping detects sample centering device.
Background
The Forming Limit Curves (Forming Limit Curves) are also called Forming Limit graphs (Forming Limit graphs), and refer to the strip-shaped regions or Curves formed by the maximum main and secondary strain pairs which can be reached by the metal sheet under different strain paths in the Forming process. The forming limit curve is the simplest and most intuitive method for quantitatively judging the forming performance of the metal sheet, and has important application in aspects of optimizing the stamping process, selecting materials for automobile sheet metal parts and the like. At present, two bulging test methods are mainly used for detecting the forming limit of a plate, one is a Nakajima method, the other is an M-K method, the two test methods mainly differ in the shape of a punch, but regardless of which method is used, the centering of a sample is a very important link. If the sample is not completely centered in the experimental process, the sample can crack in advance due to uneven stress, and the obtained result cannot represent the performance of the actual material. When the sample does not reach the limit strain, the blank holder is already cracked, so that the limit strain value under the strain path cannot be obtained, and a finally obtained forming limit curve can generate a blind zone due to data loss.
At present, the mode of manually measuring the scale is still stopped for centering a sample, the centering precision completely depends on the experience of an operator, the centering precision of the sample cannot be guaranteed, and the forming limit analysis of the plate material generates large errors and even data blind areas.
SUMMERY OF THE UTILITY MODEL
For solving prior art's is not enough, the utility model provides a panel shaping detects sample centering device, it can carry out more accurate centering with sample and terrace die, and the centering process has stop device's participation, and the operation process is more simple quick, can ensure the accurate analysis of sheet material shaping limit.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
panel shaping detects sample centering device, the on-line screen storage device comprises a base, set up coaxial leading fixing base and rearmounted fixing base on the base, all set up the slide opening in leading fixing base and the rearmounted fixing base, run through same root in the slide opening of leading fixing base and rearmounted fixing base to the well handle, the centering handle includes centering head and sliding part, set up the scale on the sliding part outer wall, set up the spring in the sliding part, the diameter of centering head is greater than the diameter of spring, the diameter of spring is less than the diameter of leading fixing base slide opening just is greater than the diameter of rearmounted fixing base slide opening, the spring is located between centering head and the rearmounted fixing base, overhead fixed connection centering block of dismantling of centering, it sets up the location separation blade to slide on the sliding part.
The centering block is a circular sample centering block, and the front end of the circular sample centering block is in an arc shape.
The centering block is a rectangular sample centering block, the rectangular sample centering block comprises a scale and a sliding stop block, the scale is detachably and fixedly connected with the end part of the centering head, a sliding groove is formed in the top of the scale, a sliding block which is connected with the sliding groove in a sliding mode is arranged at the top of the sliding stop block, and a locking knob is arranged on the sliding block.
The locating separation blade includes that sleeve, spacer and fastening are tied, sleeve and sliding part sliding connection, the spacer is located the sleeve tail end, set up the screw hole on the sleeve lateral wall, fastening is tied and is cooperateed with the screw hole.
Contrast prior art, the beneficial effects of the utility model are that:
the utility model discloses a spring and the cooperation of location separation blade, through the supplementary sign of scale, can realize the location to the centering head to for the sample provides a location foundation, compare manual measurement's mode, this device in case the installation is accomplished, can be quick carry out the centering to the sample. Especially in the process of repeated tests of the same sample, a large amount of time can be saved, the precision is higher, and accurate analysis of the plate forming limit can be guaranteed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a reference diagram of the usage state of the embodiment 1 of the present invention;
fig. 3 is a reference diagram of the usage status of embodiment 2 of the present invention.
Reference numerals shown in the drawings: 1. a base; 2. a front fixed seat; 3. a rear fixed seat; 4. a middle handle; 5. a spring; 6. centering blocks; 7. positioning a baffle plate; 41. centering the head; 42. a sliding part; 61. a scale; 62. a sliding stopper; 63. a chute; 64. a slider; 65. locking the knob; 71. a sleeve; 72. positioning plates; 73. and (6) fastening the bolt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.
As shown in fig. 1-3, panel shaping detects sample centering device, including base 1, set up coaxial leading fixing base 2 and rearmounted fixing base 3 on the base 1, all have the slide opening in leading fixing base 2 and the rearmounted fixing base 3, run through same root in the slide opening of leading fixing base 2 and rearmounted fixing base 3 and to well handle 4, include centering head 41 and sliding part 42 to well handle 4, the sliding part is connected with the slide opening sliding connection of two fixing bases. Set up the scale on the 42 outer walls of sliding part, can fix a position the distance at centering block and terrace die center through the scale, spring 5 is established to the cover on the sliding part 42, the diameter of centering head 41 is greater than the diameter of spring 5, the diameter of spring 5 is less than the diameter of 2 slotted holes of leading fixing base just is greater than the diameter of 3 slotted holes of trailing fixing base makes spring 5 is located between centering head 41 and the trailing fixing base 3, when pulling the handle of centering backward, centering head and trailing fixing base compression spring. The centering head 41 is detachably and fixedly connected with a centering block 6, and the centering block is used for being in contact with the sample to complete positioning of the sample. The sliding part 42 is provided with a positioning baffle 7 in a sliding way, and the positioning baffle locks and positions the centering handle, so that the position of the centering block is limited.
Specifically, the centering block 6 is a circular sample centering block, and the front end of the circular sample centering block is in an arc shape. And the size of the circular arc is processed according to the size of the pattern, so that the diameter of the circular arc is consistent with the diameter of the excircle of the sample.
Specifically, centering block 6 is rectangle sample centering block, rectangle sample centering block includes scale 61 and slip dog 62, the scale has on the scale, fixed connection can be dismantled with centering head 41 tip to scale 61, spout 63 is seted up at scale 61 top, slip dog 62 top set up with spout 63 sliding connection's slider 64, through the cooperation of spout and slider, make the slip dog slide under the spacing of spout, set up locking knob 65 on the slider 64, set up screwing in the screw hole through the locking knob on the slider, can make locking knob and scale fastening contact to realize the fixed of slip dog, thereby fix a position the width direction of rectangle sample.
Specifically, the positioning baffle 7 includes a sleeve 71, a positioning piece 72 and a fastening bolt 73, the sleeve 71 is slidably connected to the sliding portion 41, the positioning piece 72 is located at the tail end of the sleeve 71, a threaded hole is formed in the side wall of the sleeve 71, and the fastening bolt 73 is matched with the threaded hole. The tail end of the fastening bolt is contacted with the side wall of the sliding part by screwing the fastening bolt in the threaded hole, so that the positioning separation blade and the fastening bolt are fixed. And the positioning sheet 72 is clamped at the edge of the base and is matched with the elasticity of the spring to fix the centering handle to the centering block for positioning.
Example 1:
panel shaping detects sample centering device, including base 1, the base passes through the bolt fastening on test platform, coaxial leading fixing base 2 of bolt fastening and rearmounted fixing base 3 on the base 1, the bolt hole of leading fixing base and rearmounted fixing base is "U" type groove to convenient to adjust two fixing bases and be in coaxial position. The base is fixed after being adjusted for many times, so that the axis of the centering handle and the axis of the male die are coplanar. The centering device is characterized in that sliding holes are formed in the front fixing seat 2 and the rear fixing seat 3, the same centering stem 4 penetrates through the sliding holes of the front fixing seat 2 and the rear fixing seat 3, the centering stem 4 comprises a centering head 41 and a sliding part 42 which are integrally formed, scales are carved on the outer wall of the sliding part 42, a spring 5 is sleeved on the sliding part 42, the diameter of the centering head 41 is larger than that of the spring 5, the diameter of the spring 5 is smaller than that of the sliding hole of the front fixing seat 2 and larger than that of the sliding hole of the rear fixing seat 3, the spring 5 is positioned between the centering head 41 and the rear fixing seat 3, a centering block 6 is fixedly connected to the centering head 41 through a bolt, the centering block is a circular sample centering block which is L-shaped, a vertical plate of the L-shaped circular sample centering block is fixed with a bolt at the end part of the centering head, and the front end of the vertical plate of the circular sample centering block is arc-shaped, the diameter of the circular arc is the same as the diameter of the circular sample. The sliding part 42 is provided with a positioning baffle 7 in a sliding way. The positioning baffle piece 7 comprises a sleeve 71, a positioning piece 72 and a fastening bolt 73, the sleeve 71 is in sliding connection with the sliding part 41, the positioning piece 72 is located at the tail end of the sleeve 71 and is integrally formed with the sleeve, a threaded hole is formed in the side wall of the sleeve 71, and the fastening bolt 73 is matched with the threaded hole.
In the embodiment, when the circular sample is centered, the diameter of the circular sample is firstly determined, then the installation position of the base on the experiment table is adjusted, the axis of the centering head is coplanar with the axis of the male die, the central edge of the centering block is moved to the center of the male die, then the sliding part is pulled back, and the pull-back distance is determined to be the radius length of the circular sample according to the scale on the sliding part. Then the positioning plate is clamped at the tail end of the base, the base is locked through the fastening bolt on the sleeve, the centering handle is fixed through the elastic force of the spring compression, and the centering head is positioned. And then the edge of the sample is contacted with the arc edge of the centering head, so that the centering of the circular sample is realized.
Example 2:
for embodiment 1, the centering block 6 in this embodiment is a rectangular sample centering block, the rectangular sample centering block includes a scale 61 and a sliding stopper 62, the scale 61 is bolted to the end of the centering head 41, and the screw is a countersunk bolt, so that sliding contact between the sliding stopper and the side surface of the scale is not hindered. The sliding stop block comprises a sliding part in contact with the scale and a positioning part at the bottom of the sliding part, the edge of the sliding part is in contact with the scale to be used as marking line indication, and the positioning part is in contact with the side edge of the sample. The top of the scale 61 is provided with a sliding groove 63 which is a T-shaped groove or a dovetail groove, the top of the sliding block 62 is provided with a sliding block 64 which is slidably connected with the sliding groove 63, and the sliding block 64 is provided with a threaded hole and a locking knob 65 which is matched with the threaded hole.
In this example, when centering a rectangular sample, the length and width of the rectangular sample are first determined, and then the adjustment of the base is completed as in example 1, but without making the axis of the centering head coplanar with the axis of the punch, the front edge of the centering block is moved to the center of the punch, and the edge of the slide stopper is also moved to the center of the punch. And then, the sliding part is pulled back, the pulling back distance is determined to be half of the length of the sample according to the scale on the sliding part, and the sliding stop block is slid towards one side, wherein the moving distance of the sliding stop block is half of the width of the rectangular sample. Then the locking knob is fastened to fix the sliding stop block, the positioning plate is clamped at the tail end of the base and is locked through the fastening bolt on the sleeve, and the centering handle is fixed by utilizing the elastic force of the spring compression to realize the positioning of the centering head. And placing the rectangular sample close to the edges of the scale and the sliding stop block to complete the centering of the rectangular sample.
It should be noted that when the mounting position of the base is adjusted, it is preferable that the axis of the male die and the "0" scale line of the scale are collinear to facilitate subsequent adjustment of the slide stop.
Claims (4)
1. Panel shaping detects sample centering device, including base (1), its characterized in that: the base (1) is provided with a front fixing seat (2) and a rear fixing seat (3) which are coaxial, sliding holes are formed in the front fixing seat (2) and the rear fixing seat (3), the front fixing seat (2) and the rear fixing seat (3) penetrate through the same middle handle (4), the middle handle (4) comprises a centering head (41) and a sliding part (42), scales are arranged on the outer wall of the sliding part (42), a spring (5) is arranged on the sliding part (42), the diameter of the centering head (41) is larger than that of the spring (5), the diameter of the spring (5) is smaller than that of the sliding hole of the front fixing seat (2) and larger than that of the sliding hole of the rear fixing seat (3), the spring (5) is positioned between the centering head (41) and the rear fixing seat (3), and a centering block (6) is detachably and fixedly connected to the centering head (41), the sliding part (42) is provided with a positioning baffle (7) in a sliding way.
2. The plate forming detection sample centering device according to claim 1, characterized in that: the centering block (6) is a circular sample centering block, and the front end of the circular sample centering block is in an arc shape.
3. The plate forming detection sample centering device according to claim 1, characterized in that: centering block (6) is rectangle sample centering block, rectangle sample centering block includes scale (61) and slip dog (62), fixed connection can be dismantled with centering head (41) tip in scale (61), scale (61) top sets up spout (63), slip dog (62) top sets up slider (64) with spout (63) sliding connection, set up locking knob (65) on slider (64).
4. The plate forming detection sample centering device according to claim 1, characterized in that: location separation blade (7) are including sleeve (71), spacer (72) and fastening bolt (73), sleeve (71) and sliding part (42) sliding connection, spacer (72) are located sleeve (71) tail end, set up the screw hole on sleeve (71) lateral wall, fastening bolt (73) cooperate with the screw hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921509558.7U CN211627161U (en) | 2019-09-11 | 2019-09-11 | Panel shaping detects sample centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921509558.7U CN211627161U (en) | 2019-09-11 | 2019-09-11 | Panel shaping detects sample centering device |
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| Publication Number | Publication Date |
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| CN211627161U true CN211627161U (en) | 2020-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921509558.7U Active CN211627161U (en) | 2019-09-11 | 2019-09-11 | Panel shaping detects sample centering device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295516A (en) * | 2021-06-30 | 2021-08-24 | 安徽相邦复合材料有限公司 | Centering device and application thereof in bending mechanical property test |
| CN113567237A (en) * | 2021-06-25 | 2021-10-29 | 鞍钢股份有限公司 | Four-way stretching limiting device and method |
-
2019
- 2019-09-11 CN CN201921509558.7U patent/CN211627161U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113567237A (en) * | 2021-06-25 | 2021-10-29 | 鞍钢股份有限公司 | Four-way stretching limiting device and method |
| CN113295516A (en) * | 2021-06-30 | 2021-08-24 | 安徽相邦复合材料有限公司 | Centering device and application thereof in bending mechanical property test |
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