CN113483976B

CN113483976B - Steel sheet elasticity detection device

Info

Publication number: CN113483976B
Application number: CN202111041022.9A
Authority: CN
Inventors: 施海涛
Original assignee: Nantong Chengli Steel Structure Engineering Co ltd
Current assignee: Anping County Essence Steel Grating Metal Mesh Co.,Ltd.
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2021-11-05
Anticipated expiration: 2041-09-07
Also published as: CN113483976A

Abstract

The invention discloses a steel plate elasticity detection device, which comprises a workbench and a steel plate detection piece, wherein a clamping mechanism matched with the steel plate detection piece is installed on the workbench, two installation seats are installed on the workbench through a sliding mechanism, moving grooves are formed in the two installation seats, a lead screw is rotatably connected to the two installation seats, moving blocks in threaded connection with the corresponding lead screw are connected to the two moving grooves in a sliding mode, placing frames are fixedly installed on the two moving blocks, and placing grooves are formed in the two placing frames. Has the advantages that: can carry out the in-process that elasticity detected to it at the ejector pad to steel sheet testing piece applys pressure, make the ejector pad carry out the displacement that the contact point position change is the same that brings with steel sheet testing piece deformation automatically to can ensure steel sheet testing piece atress stable, with the accuracy of ensureing the testing result, can avoid the ejector pad to lead to the problem that wearing and tearing appear in the steel sheet testing piece surface when relative steel sheet testing piece takes place to remove simultaneously.

Description

Steel sheet elasticity detection device

Technical Field

The invention relates to the technical field of elasticity detection, in particular to a steel plate elasticity detection device.

Background

Leaf spring is by many have elasticity, wide and thick unanimity, and steel sheet different in size is constituteed moreover, in leaf spring's manufacture process, needs to detect the elastic limit that the steel sheet can bear, and patent document through retrieving patent number is CN213714663U discloses a leaf spring is with steel sheet elasticity detection device, including the workstation, equal fixedly connected with rest shoe all around the bottom of workstation, the equal fixedly connected with slipmat in bottom of rest shoe, one side fixed mounting of workstation has control panel.

The steel plate elasticity detection device for the steel plate spring has the following defects: the push block moves downwards to press the two ends of the steel plate in the detection process, the two ends of the steel plate can deform under the action of pressure, the contact point of the push block and the steel plate also can change along with the deformation of the steel plate in the deformation process, and downward thrust is still kept on the steel plate by the push block at the moment, so that the surfaces of the two relative movement can be greatly abraded by the steel plate, the steel plate is stressed and changed due to the change of the contact point, and the accuracy of a detection result is influenced.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a steel plate elasticity detection device.

In order to achieve the purpose, the invention adopts the following technical scheme:

a steel plate elasticity detection device comprises a workbench and a steel plate detection piece, wherein a clamping mechanism matched with the steel plate detection piece is installed on the workbench, two installation bases are installed on the workbench through a sliding mechanism, moving grooves are formed in the two installation bases, a lead screw is rotationally connected to each of the two installation bases, and a moving block in threaded connection with the corresponding lead screw is connected in each of the two moving grooves in a sliding manner;

two equal fixed mounting has the rack on the movable block, and has all seted up the standing groove in two racks, two equal sliding connection has the ejector pad in the standing groove, two equal fixed mounting has the cylinder on the rack, and the lower extreme of two cylinders respectively with the ejector pad fixed connection that corresponds, two equal sliding connection has the layer board in the standing groove, and all installs adjustment mechanism, two between two layer boards and two ejector pads the link gear is all installed between ejector pad and two lead screws.

Further, clamping mechanism comprises bracing piece, holder, threaded rod, carousel and splint, bracing piece fixed mounting is on the workstation, holder fixed mounting is on the bracing piece, threaded rod threaded connection is in the holder upper end, carousel fixed mounting is in the threaded rod upper end, splint rotate to be connected at the threaded rod lower extreme, and splint are located the holder.

Further, slide mechanism comprises spout, two-way lead screw, servo motor, two sliders and two fixed plates, the spout is seted up on the workstation, two-way lead screw rotates to be connected on the workstation, servo motor fixed mounting is on the lateral wall of workstation, and servo motor's output and the one end fixed connection of two-way lead screw, two the equal sliding connection of slider is in the spout, and two sliders all with two-way lead screw threaded connection, two the fixed plate is fixed mounting respectively on two sliders, and two fixed plates respectively with two mount pad fixed connection.

Further, equal fixed mounting has the stopper that two symmetries set up on the lateral wall of ejector pad and layer board, set up the perpendicular groove that two symmetries set up on the lateral wall of rack, and two perpendicular grooves respectively with two corresponding stopper sliding connection.

Further, adjustment mechanism comprises fixed block, connecting block and screw rod, the equal fixed mounting of fixed block and connecting block is on the lateral wall of rack, the screw rod rotates to be connected between fixed block and connecting block, and one of them stopper sliding connection on screw rod and the ejector pad, a stopper threaded connection of corresponding on screw rod and the layer board.

Further, link gear comprises slide bar, locating piece, connecting rod, rack and gear, slide bar sliding connection is on another stopper of ejector pad, locating piece fixed mounting is served near one of bracing piece at the slide bar, connecting rod fixed mounting is at the other end of slide bar, rack fixed mounting is at the lower extreme of connecting rod, gear fixed mounting is kept away from the bracing piece at the lead screw and is extended to one of the outer of mount pad and serve, and the gear meshes with the rack mutually.

Further, the rack has been kept away from and has been seted up the spread groove on the lateral wall of rack, and sliding connection has the lug in the spread groove, fixed mounting has branch on the lug, the one end fixed mounting that branch is close to the gear has the spliced pole, set up the ring channel with spliced pole matched with on the lateral wall of gear, the one end fixed mounting that branch was kept away from to the spliced pole has the fixed disk, set up on the lateral wall of ring channel with fixed disk matched with ring channel.

Further, the holding tank has been seted up on the lateral wall of ejector pad lower extreme, and fixed mounting has pressure sensor on the roof of holding tank, sliding connection has rubber protection piece in the holding tank, and the thickness of rubber protection piece is greater than the difference in height of holding tank and pressure sensor, fixed mounting has the fixture block that two symmetries set up on the lateral wall of rubber protection piece, two draw-in grooves have been seted up on the lateral wall of holding tank, and two draw-in grooves cooperate with two fixture blocks respectively.

Compared with the prior art, the invention has the advantages that:

1: can exert pressure at the ejector pad to steel sheet detection piece and make it take place the deformation in-process, keep the ejector pad unchangeable to the contact point of steel sheet detection piece to can ensure that steel sheet detection piece atress is stable, with the accuracy of ensureing the testing result, can avoid the ejector pad to lead to the problem that wearing and tearing appear in the steel sheet detection piece surface when relative steel sheet detection piece takes place to remove simultaneously.

2: when the push block moves downwards, the initial position of the push block can be automatically changed through the operation of the linkage mechanism, so that the contact point change caused by the deformation of the steel plate detection piece is kept consistent, manual control is not needed, and the automation degree and the sensitivity of the device are improved.

3: the design of blocking at both ends around the rack can be injectd steel sheet detection piece's front and back both ends displacement, avoids it to follow the problem that the device front end popped out when receiving pressure, can ensure that detection operation goes on smoothly.

4: through the cooperation of layer board and adjustment mechanism, can accomplish the ejector pad and detect the fixed of piece with the steel sheet before applying external force to steel sheet detection piece to can further improve the stability of the contact point between ejector pad and the steel sheet detection piece.

5: the design of rubber protection piece can avoid pressure sensor direct and steel sheet to detect the piece upper surface contact and lead to its problem of producing the damage under the reaction force.

In summary, in the process that the push block applies pressure to the steel plate detection piece to perform elastic detection on the steel plate detection piece, the push block is automatically enabled to perform displacement which is the same as the position change of the contact point caused by the deformation of the steel plate detection piece, so that the steel plate detection piece can be ensured to be stressed stably, the accuracy of a detection result can be ensured, and meanwhile, the problem that the surface of the steel plate detection piece is abraded when the push block moves relative to the steel plate detection piece can be avoided.

Drawings

FIG. 1 is a schematic structural diagram of a steel plate elasticity detection device according to the present invention;

FIG. 2 is a schematic view of the backside structure of FIG. 1;

FIG. 3 is a schematic structural view of the steel plate inspection piece of FIG. 1 with the steel plate removed;

FIG. 4 is a schematic diagram of the backside structure of FIG. 3;

FIG. 5 is an enlarged schematic view of the two sliders and the connecting assembly thereon shown in FIG. 2, which are deflected to the left by a certain angle;

FIG. 6 is an enlarged view of the mounting base and the upper connecting assembly on the left side of FIG. 5;

FIG. 7 is a schematic structural view of FIG. 6 after the placement frame is removed and the placement frame is deflected to the left by a certain angle;

FIG. 8 is an enlarged view of the structure of FIG. 7 with the mounting base, the connecting rod and the upper connecting assembly removed;

FIG. 9 is an enlarged view of the structure of portion A in FIG. 8;

FIG. 10 is an enlarged view of the push block of FIG. 7 after being deflected upward by a certain angle;

fig. 11 is a cross-sectional view of fig. 10.

In the figure: 1 workbench, 2 steel plate detection parts, 3 support rods, 4 clamping seats, 5 threaded rods, 6 turntables, 7 clamping plates, 8 sliding grooves, 9 sliding blocks, 10 bidirectional screw rods, 11 servo motors, 12 fixing plates, 13 mounting seats, 14 moving grooves, 15 moving blocks, 16 placing frames, 17 placing grooves, 18 air cylinders, 19 pushing blocks, 20 supporting plates, 21 limiting blocks, 22 vertical grooves, 23 fixing blocks, 24 connecting blocks, 25 screw rods, 26 sliding rods, 27 positioning blocks, 28 connecting rods, 29 racks, 30 screw rods, 31 gears, 32 connecting grooves, 33 supporting rods, 34 connecting columns, 35 annular grooves, 36 fixing plates, 37 annular clamping grooves, 38 accommodating grooves, 39 pressure sensors, 40 rubber protection blocks, 41 clamping grooves and 42 clamping blocks.

Detailed Description

Referring to fig. 1-4, a steel plate elasticity detection device comprises a workbench 1 and a steel plate detection piece 2, wherein a clamping mechanism matched with the steel plate detection piece 2 is installed on the workbench 1.

The above is noteworthy:

1. clamping mechanism is by bracing piece 3, holder 4, threaded rod 5, carousel 6 and splint 7 are constituteed, 3 fixed mounting of bracing piece are on workstation 1, 4 fixed mounting of holder are on

bracing piece

3, 5 threaded connection of threaded rod is in 4 upper ends of holder, 6 fixed mounting of carousel is in 5 upper ends of threaded rod, splint 7 rotate to be connected at 5 lower extremes of threaded rod, and splint 7 are located holder 4, when carrying out elasticity detection to steel sheet detection piece 2, place its central point position in holder 4, it drives splint 7 and moves down through the threaded connection of threaded rod 5 with holder 4 to rotate carousel 6 afterwards, make splint 7 be close to and accomplish the fixed of steel sheet detection piece 2 in holder 4 to steel sheet detection piece 2.

2. In order to control the turntable 6 conveniently, an eccentrically arranged rotating rod can be arranged on the turntable, or knurls are arranged on the surface of the turntable, and a rubber pad can be fixedly arranged at the lower end of the clamping plate 7 to avoid abrasion of the clamping plate 7 to the steel plate detection piece 2.

Referring to fig. 4-6, two installation bases 13 are installed on the workbench 1 through a sliding mechanism, moving grooves 14 are formed in the two installation bases 13, lead screws 30 are rotatably connected to the two installation bases 13, and moving blocks 15 in threaded connection with the corresponding lead screws 30 are slidably connected to the two moving grooves 14.

The above is noteworthy:

1. when the screw rod 30 rotates, the moving block 15 can be driven to slide in the moving groove 14, and the sliding mechanism is composed of a sliding groove 8, a bidirectional screw rod 10, a servo motor 11, two sliding blocks 9 and two fixing plates 12.

2. Spout 8 is seted up on workstation 1, two-way lead screw 10 rotates to be connected on workstation 1, 11 fixed mounting of servo motor is on workstation 1's lateral wall, and servo motor 11's output and the one end fixed connection of two-way lead screw 10, two equal sliding connection of slider 9 are in spout 8, and two slider 9 all with 10 threaded connection of two-way lead screw, two fixed plate 12 respectively fixed mounting on two slider 9, and two fixed plate 12 respectively with two mount pad 13 fixed connection, cooperation through servo motor 11 and two-way lead screw 10, can adjust the interval of two fixed plate 12.

3. All fixed mounting has rack 16 on two movable blocks 15, and standing groove 17 has all been seted up in two racks 16, standing groove 17 in two racks 16 is used for placing the both ends of steel sheet detection piece 2 respectively, because the interval of two racks 16 can be adjusted, consequently, the interval of two standing grooves 17 can be adjusted thereupon, thereby can accomplish the placing to different length steel sheet detection piece 2, and because standing groove 17 on the rack 16 for controlling link up and the setting that does not link up, consequently can prescribe a limit to the both ends displacement distance around steel sheet detection piece 2, avoid it to follow the problem that the device front end popped out when receiving pressure, can ensure that detection operation goes on smoothly.

4. Equal sliding connection has ejector pad 19 in two standing grooves 17, the equal fixed mounting in two 16 upper ends of rack has cylinder 18, and the lower extreme of two cylinders 18 respectively with the ejector pad 19 fixed connection that corresponds, accomplish the location back in two standing grooves 17 respectively at the both ends of steel sheet testing part 2, start cylinder 18 and can make ejector pad 19 move down and apply the same pressure to the both ends of steel sheet testing part 2, thereby can detect the deformation state of steel sheet testing part 2 under different pressure, with this can accomplish its elastic detection operation.

5. Equal sliding connection has layer board 20 in two standing grooves 17, equal fixed mounting has stopper 21 that two symmetries set up on the lateral wall of ejector pad 19 and layer board 20, set up the perpendicular groove 22 that two symmetries set up on the lateral wall of rack 16, and two perpendicular grooves 22 respectively with two stopper 21 sliding connection that correspond, through stopper 21 and perpendicular groove 22's cooperation, can prescribe a limit to the moving direction of ejector pad 19 and layer board 20 in standing groove 17, thereby can ensure that ejector pad 19 applys stable pressure to steel sheet detection piece 2.

6. Adjusting mechanisms are arranged between the two supporting plates 20 and the two pushing blocks 19 and each adjusting mechanism is composed of a fixing block 23, a connecting block 24 and a screw 25.

7. Fixed block 23 and the equal fixed mounting of connecting block 24 are on the lateral wall of rack 16, screw rod 25 rotates to be connected between fixed block 23 and connecting block 24, and one of them stopper 21 sliding connection on screw rod 25 and the ejector pad 19, a stopper 21 threaded connection of correspondence on screw rod 25 and the layer board 20, the accessible rotates screw rod 25, can drive stopper 21 on the layer board 20 and be close to or keep away from corresponding stopper 21 on the relative ejector pad 19, thereby can adjust the interval of layer board 20 and ejector pad 19, thereby can make the two accomplish and carry out the centre gripping fixed to the both ends of the steel sheet detection piece 2 of different thickness, ensure that ejector pad 19 and steel sheet detection piece 2's contact position is unchangeable.

Referring to fig. 7-9, a linkage mechanism is installed between the two pushing blocks 19 and the two lead screws 30, and the linkage mechanism is composed of a sliding rod 26, a positioning block 27, a connecting rod 28, a rack 29 and a gear 31.

The above is noteworthy:

1. a sliding rod 26 is slidably connected to another limiting block 21 of the pushing block 19, a positioning block 27 is fixedly installed at one end of the sliding rod 26 close to the supporting rod 3, a connecting rod 28 is fixedly installed at the other end of the sliding rod 26, a rack 29 is fixedly installed at the lower end of the connecting rod 28, a gear 31 is fixedly installed at one end of the screw rod 30 far away from the supporting rod 3 and extending out of the mounting base 13, and the gear 31 is meshed with the rack 29, when the cylinder 18 drives the pushing block 19 to move down to apply pressure on the steel plate detection piece 2, the rack 29 can move down along with the downward movement of the pushing block 19, at the moment, through the meshing action of the rack 29 and the gear 31, the screw rod 30 can rotate to drive the moving block 15 to move to a position far away from the center of the steel plate detection piece 2, at the moment, the position of the pushing block 19 can move simultaneously, and because the steel plate detection piece 2 deforms under pressure, the outward expansion is realized, so that the contact point with the pushing block 19 can move towards a direction far away from the center of the steel plate detection piece 2 relative to the original position In the process, the left and right position change of the push block 19 is consistent with the left and right position change of the steel plate detection piece 2, so that the contact point of the push block 19 and the steel plate detection piece 2 can be always kept unchanged, the accuracy of the detection result can be ensured, and the problem that the surface of the steel plate detection piece 2 is abraded due to the relative movement between the push block 19 and the steel plate detection piece 2 can be avoided.

2. Because the slide bar 26 is connected with the other limit block 21 on the push block 19 in a sliding manner, when the placing frame 16 moves left and right along with the downward movement of the push block 19, the slide bar 26 can slide in the direction relative to the placing frame 16, so that the rack 29 and the gear 31 can be ensured to be always effectively meshed, the screwing directions of the screw rod 30 and the left moving block 15 on the left side of the workbench 1 are opposite to the screwing directions of the screw rod 30 and the right moving block 15 on the right side, and the design aims to ensure that the two placing frames 16 can simultaneously keep moving in the direction away from the center of the steel plate detection piece 2 when the two push blocks 19 move downward simultaneously.

3. The side wall of the rack 29 far away from the placing rack 16 is provided with a connecting groove 32, a convex block is connected in the connecting groove 32 in a sliding manner, a support rod 33 is fixedly mounted on the convex block, and the support rod 33 can move up and down relative to the connecting groove 32 through the matching of the convex block and the connecting groove 32, namely the support rod 33 can move up and down relative to the rack 29.

4. Connecting column 34 is fixedly installed at one end, close to gear 31, of strut 33, an annular groove 35 matched with connecting column 34 is formed in the side wall of gear 31, a fixed disc 36 is fixedly installed at one end, far away from strut 33, of connecting column 34, an annular clamping groove 37 matched with fixed disc 36 is formed in the side wall of annular groove 35, through the matching of annular groove 35 and connecting column 34, the connection relation between strut 33 and gear 31 can be ensured, through the matching of fixed disc 36 and annular clamping groove 37, the separation of connecting column 34 and annular groove 35 can be avoided, therefore, when rack 29 moves, the connecting effect of strut 33 on rack 29 and gear 31 is utilized, effective meshing between rack 29 and gear 31 is ensured, and therefore, moving block 15 can smoothly drive pushing block 19 to move.

Referring to fig. 10-11, a receiving groove 38 is formed on a side wall of a lower end of the push block 19, and a pressure sensor 39 is fixedly mounted on a top wall of the receiving groove 38.

The above is noteworthy:

1. the pressure sensor 39 can measure the pressure applied by the push block 19 to the steel plate detection member 2, so that the elasticity of the steel plate detection member 2 can be better detected.

2. Sliding connection has rubber protection piece 40 in holding tank 38, and the thickness of rubber protection piece 40 is greater than holding tank 38 and pressure sensor 39's difference in height, design through rubber protection piece 40, can avoid pressure sensor 39 direct and steel sheet to detect the problem that piece 2 upper surface contact leads to it to take place the damage under reaction force, the design aim at of rubber protection piece 40 thickness, can ensure that ejector pad 19 when exerting decurrent pressure to steel sheet detection piece 2, rubber protection piece 40 can be smoothly applyed pressure sensor 39 with steel sheet detection piece 2's reaction force.

3. Two symmetrically-arranged clamping blocks 42 are fixedly mounted on the side wall of the rubber protection block 40, two clamping grooves 41 are formed in the side wall of the accommodating groove 38, the two clamping grooves 41 are respectively matched with the two clamping blocks 42, and the mounting stability of the rubber protection block 40 on the accommodating groove 38 can be ensured through the matching of the clamping grooves 41 and the clamping blocks 42, so that the separation of the two is avoided.

In the invention, when the elastic detection of the steel plate detection piece 2 is carried out, the steel plate detection piece 2 is fixed on the workbench 1 through the clamping mechanism, then the two placing frames 16 are mutually closed through controlling the servo motor 11, more parts of two ends of the steel plate detection piece 2 are positioned in the two placing grooves 17, then the two support plates 20 are respectively closed to the two push blocks 19 through rotating the two screws 25, the fixation of the two push blocks 19 and two ends of the steel plate detection piece 2 is completed, then the two cylinders 18 are started, the two push blocks 19 simultaneously move downwards to apply the same pressure to two ends of the steel plate detection piece 2, so as to detect the deformation state of the steel plate detection piece 2 under different pressures, in the downward movement process of the push blocks 19, the whole steel plate detection piece 2 can be outwards unfolded when being deformed, and simultaneously under the downward movement effect of the push blocks 19, the two placing frames 16 can be mutually far away through the linkage mechanism, therefore, the two push blocks 19 on the steel plate detection piece can be far away from each other along with the deformation of the steel plate detection piece 2, and the force application point of the push blocks 19 on the steel plate detection piece 2 can be kept unchanged, so that the accuracy of the detection result is ensured, and the problem of abrasion of the surface of the steel plate detection piece 2 is avoided.

Claims

1. A steel plate elasticity detection device, comprising a workbench (1) and a steel plate detection piece (2), characterized in that a clamping mechanism matched with the steel plate detection piece (2) is installed on the workbench (1) , two mounting seats (13) are installed on the worktable (1) through a sliding mechanism, and a moving groove (14) is opened on the two mounting seats (13), and the two mounting seats (13) are A lead screw (30) is rotatably connected with each other, and a moving block (15) threadedly connected with the corresponding lead screw (30) is slidably connected in the two moving grooves (14);

Placement racks (16) are fixedly installed on the two moving blocks (15), and placement slots (17) are opened in the two placement racks (16), and the two placement slots (17) slide in both. A push block (19) is connected, the upper ends of the two placing racks (16) are fixedly installed with a cylinder (18), and the lower ends of the two cylinders (18) are respectively fixedly connected with the corresponding push block (19). Supporting plates (20) are slidably connected in the placement grooves (17), and adjustment mechanisms are installed between the two supporting plates (20) and the two push blocks (19), and the two push blocks (19) ) and the two screw rods (30) are installed with a linkage mechanism.

2. The steel plate elasticity detection device according to claim 1, wherein the clamping mechanism is composed of a support rod (3), a clamping seat (4), a threaded rod (5), a turntable (6) and a clamping plate (7) Composition, the support rod (3) is fixedly installed on the workbench (1), the clamp seat (4) is fixedly installed on the support rod (3), and the threaded rod (5) is threadedly connected to the clamp. The upper end of the seat (4), the turntable (6) is fixedly mounted on the upper end of the threaded rod (5), the clamping plate (7) is rotatably connected to the lower end of the threaded rod (5), and the clamping plate (7) is located in the clamping seat (4) .

3 . The steel plate elasticity detection device according to claim 1 , wherein the sliding mechanism consists of a chute ( 8 ), a bidirectional screw ( 10 ), a servo motor ( 11 ), and two sliding blocks ( 9 ). 4 . ) and two fixing plates (12), the chute (8) is set on the workbench (1), the bidirectional screw (10) is rotatably connected to the workbench (1), the servo motor ( 11) It is fixedly installed on the side wall of the workbench (1), and the output end of the servo motor (11) is fixedly connected with one end of the bidirectional screw (10). Inside the groove (8), and the two sliders (9) are threadedly connected with the bidirectional screw (10), the two fixing plates (12) are fixedly installed on the two sliders (9), and the two The fixing plates (12) are respectively fixedly connected with the two mounting seats (13).

4 . The steel plate elasticity detection device according to claim 1 , wherein two symmetrically arranged limit blocks ( 21), two symmetrically arranged vertical slots (22) are opened on the side walls of the placing rack (16), and the two vertical slots (22) are respectively slidably connected with two corresponding limit blocks (21).

5 . The steel plate elasticity detection device according to claim 4 , wherein the adjustment mechanism is composed of a fixing block ( 23 ), a connecting block ( 24 ) and a screw rod ( 25 ), and the fixing block ( 23 ) And the connecting block (24) is fixedly installed on the side wall of the placing frame (16), the screw (25) is rotatably connected between the fixing block (23) and the connecting block (24), and the screw (25) is connected to the pusher (25). One of the limit blocks (21) on the block (19) is slidably connected, and the screw rod (25) is threadedly connected with a corresponding limit block (21) on the support plate (20).

6 . The steel plate elasticity detection device according to claim 5 , wherein the linkage mechanism consists of a sliding rod ( 26 ), a positioning block ( 27 ), a connecting rod ( 28 ), a rack ( 29 ) and a gear. 7 . (31), the sliding rod (26) is slidably connected to another limiting block (21) of the push block (19), and the positioning block (27) is fixedly installed on the sliding rod (26) close to the support rod ( 3) On one end of the connecting rod (28) is fixedly installed on the other end of the sliding rod (26), the rack (29) is fixedly installed on the lower end of the connecting rod (28), and the gear (31) is fixed It is installed on one end of the screw rod (30) away from the support rod (3) and extends to the outside of the installation seat (13), and the gear (31) meshes with the rack (29).

7 . The steel plate elasticity detection device according to claim 6 , wherein a connecting groove ( 32 ) is formed on the side wall of the rack ( 29 ) away from the placing frame ( 16 ), and the connecting groove ( 32 ) ) is slidably connected with a bump, a support rod (33) is fixedly installed on the bump, and a connecting column (34) is fixedly installed at one end of the support rod (33) close to the gear (31). ) is provided with an annular groove (35) matched with the connecting column (34) on the side wall of the The side wall of (35) is provided with an annular clamping groove (37) matched with the fixing plate (36).

8 . The steel plate elasticity detection device according to claim 1 , wherein an accommodating groove ( 38 ) is formed on the side wall of the lower end of the push block ( 19 ), and the top wall of the accommodating groove ( 38 ) is fixed on the top wall. 9 . A pressure sensor (39) is installed, a rubber protection block (40) is slidably connected in the accommodating groove (38), and the thickness of the rubber protection block (40) is greater than the height difference between the accommodating groove (38) and the pressure sensor (39) , two symmetrically arranged clamping blocks (42) are fixedly installed on the side wall of the rubber protection block (40), and two clamping grooves (41) are opened on the side wall of the accommodating groove (38), and the two The card slots (41) are respectively matched with the two card blocks (42).