A stamping part compression resistance detection device

Abstract

The utility model relates to a kind of stamping part compression resistance detection devices, including workbench, stamping part on workbench, indenter, force sensor located above indenter and be used to drive indenter to move up and down first air cylinder, it further includes left swing arm and right swing arm and the adjusting module for driving left swing arm and right swing arm mutually close or is far away, left swing arm and right swing arm are same in shape and size and symmetrically set, left contact portion is installed in the right side of left swing arm, adjusting module includes adjusting plate, second air cylinder with adjusting plate linkage, left swing arm is protrudingly provided with left positioning column upwards, left matching groove is set in adjusting plate corresponding left positioning column, using above-mentioned scheme, provide a kind of stamping part compression resistance detection device by the stamping part needing to be detected is placed on workbench and then starts adjusting module to realize left swing arm and right swing arm are respectively located at the left and right sides of stamping part by the control to first air cylinder so that stamping part is stably positioned on workbench.

Description

Technical Field

[0001] This utility model relates to a device for testing the compressive strength of stamped parts. Background Technology

[0002] In practical applications (such as automobile bodies), stamped parts often need to withstand certain pressure or loads. Therefore, their compressive strength is directly related to the safety and reliability of the whole machine. To ensure product quality, it is necessary to conduct scientific and accurate compressive strength tests on stamped parts.

[0003] Since stamped parts are usually thin-walled, irregularly shaped, have holes or flanges, they are prone to lateral slippage, warping or local buckling under vertical pressure, which affects the repeatability and reliability of test results. Therefore, how to improve the horizontal clamping of stamped parts on the worktable during the test and make them stable on the worktable has become a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a stamping part pressure resistance testing device, which is to place the stamping part to be tested on the worktable and then activate the adjustment module to control the first cylinder to realize that the left and right swing arms are respectively located on the left and right sides of the stamping part, so that the stamping part is stably placed on the worktable.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a worktable, a stamping part located on the worktable, a pressure head, a force sensor located above the pressure head, and a first cylinder for driving the pressure head to move up and down. It also includes a left and right swing arms located on the left and right sides of the stamping part, and an adjustment module for driving the left and right swing arms to move closer or further apart. The left and right swing arms are of the same shape and size and are symmetrically arranged. A left contact part is installed on the right side of the left swing arm. The adjustment module includes an adjustment plate and a second cylinder linked to the adjustment plate. A left positioning post protrudes upward from the left swing arm. A left mating groove is opened on the adjustment plate corresponding to the left positioning post. It also includes an adjustment block movably mounted on the worktable and located behind the stamping part, and a limiting block located in front of the stamping part.

[0006] The present invention is further configured such that: the left contact part is made of rubber and is detachably connected to the left swing arm.

[0007] The present invention is further configured such that: the left contact portion includes an upper mounting plate and a lower mounting plate; an insertion section is installed at the bottom of the upper mounting plate and is inclined from top to bottom and from left to right; the left swing arm is provided with a mounting groove corresponding to the upper mounting plate, and an insertion groove for the insertion section is provided below the mounting groove of the left swing arm.

[0008] The present invention is further configured such that: the upper mounting plate is provided with a socket, and the left swing arm is provided with a screw hole corresponding to the socket.

[0009] The present invention is further configured such that: the left swing arm also includes a positioning part on the rear side, the left positioning column is located above the positioning part, the worktable is located on the rear side of the positioning part and a guide rail is provided in the left and right direction, the upper and lower sides of the guide rail are provided with guide grooves, and the positioning part includes a guide section into which each guide groove is inserted.

[0010] The present invention is further configured such that: the right side of the left swing arm is open and a left screw is rotatably installed inside; the adjusting block is threadedly engaged with the left screw and abuts against the rear side of the stamped part; a right screw is rotatably installed inside the right swing arm; and a drive assembly is also included to drive the left screw and the right screw to rotate synchronously.

[0011] The present invention is further configured such that: the drive assembly includes a timing belt, a left rotating wheel is fixedly installed on the front side of the left screw, a right rotating wheel is fixedly installed on the front side of the right screw, and the timing belt transmission is arranged between the left rotating wheel and the right rotating wheel.

[0012] By adopting the above technical solution, after the stamped part to be tested is placed on the worktable, the output shaft of the second cylinder is activated, which pushes the adjusting plate to move back and forth on the worktable. As a result, the left and right positioning pins above the left and right swing arms can change their positions on the corresponding left and right mating grooves, thereby causing the left and right swing arms to move closer or further apart. When the left and right swing arms are located on the left and right sides of the stamped part and abut against it, the position of the stamped part in the left and right directions is determined. This ensures that the stamped part will not slip laterally during the process of the first cylinder driving the pressure head to move down, thus stabilizing the pressure resistance test. After the pressure resistance test is completed, the second cylinder is activated again to move the adjusting plate backward, causing the left and right swing arms to move away from the left and right sides of the stamped part, respectively. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is an assembly drawing illustrating a specific embodiment of the present utility model; Figure 2 This is a cross-sectional view of the present invention from the front to the back; Figure 3This is a cross-sectional view of the present invention from right to left; Figure 4 for Figure 2 Enlarged view of A in the middle; Figure 5 for Figure 2 A magnified view of B in the middle.

[0015] In the diagram: 1-Workbench, 11-Guide rail, 111-Guide groove; 2-Stamped parts; 3-Force sensor; 4-Synchronous belt; 5-First cylinder, 51-Pressure head; 6-Left swing arm, 61-Left contact part, 611-Upper mounting plate, 6111-Insert section, 6112-Insertion hole, 612-Lower mounting plate, 62-Left positioning post, 63-Mounting groove, 64-Insert groove, 65-Screw hole, 66-Positioning part, 661-Guide section, 67-Left screw, 671-Adjusting block, 672-Left rotating wheel; 7-Right swing arm, 71-Right positioning post, 72-Right screw, 721-Right rotary wheel; 8-Adjustment module, 81-Adjustment plate, 811-Left mating groove, 812-Right mating groove, 82-Second cylinder; 9-Limit block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figures 1-5As shown, this utility model discloses a stamping part compression resistance testing device, including a worktable 1, a stamping part 2 located on the worktable 1, a pressure head 51, a force sensor 3 located above the pressure head 51, and a first cylinder 5 for driving the pressure head 51 to move up and down. After the stamping part 2 whose compression resistance needs to be tested is placed on the worktable 1, the pressure head 51 is driven down to contact the stamping part 2 by activating the first cylinder 5. At this time, as the pressure head 51 moves down and contacts the stamping part 2, the stamping part 2 can be subjected to an upward reaction force. This reaction force can be transmitted through the pressure head 51 to the bottom bearing surface of the force sensor 3, thereby causing the strain gauge inside the force sensor 3 (usually a strain gauge pressure sensor) to undergo a slight deformation when subjected to external force. The deformation causes the strain gauge attached to the elastic sheet to deform, changing the resistance value and thus displaying the pressure value through an output electrical signal. The system also includes a left swing arm 6 and a right swing arm 7 located on the left and right sides of the stamped part 2, and an adjustment module 8 that drives the left and right swing arms 6 and 7 to move closer or further apart. The left and right swing arms 6 and 7 are identical in shape and size and symmetrically arranged. A left contact part 61 is installed on the right side of the left swing arm 6. The adjustment module 8 includes an adjustment plate 81 and a second cylinder 82 linked to the adjustment plate 81. A left positioning post 62 protrudes upward from the left swing arm 6, and a right positioning post 71 protrudes upward from the right swing arm 7. A left mating groove 811 is provided on the adjustment plate 81 corresponding to the left positioning post 62. The adjusting plate 81 has a right mating groove 812 corresponding to the right positioning post 71. It also includes an adjusting block 671 movably mounted on the worktable 1 and located behind the stamping part 2, and a limiting block 9 located in front of the stamping part 2. When the stamping part 2 to be tested is placed on the worktable 1, the output shaft of the second cylinder 82 is activated, causing the adjusting plate 81 to move forward and backward on the worktable 1. This allows the left positioning post 62 and the right positioning post 71 above the left and right swing arms 6 and 7 to change positions on the corresponding left and right mating grooves 811 and 812, thus moving the left and right swing arms 6 and 7 closer together or further apart. When the left and right swing arms 6 and 7 are respectively located on the stamping part... After the left and right sides of part 2 are pressed together, the position of the stamping part 2 in the left and right directions is determined. This ensures that the stamping part 2 will not slip laterally during the process of the first cylinder 5 driving the pressure head 51 to move down, thus stabilizing the pressure test. After the pressure test is completed, the second cylinder 82 is activated again to move the adjusting plate 81 backward, which in turn moves the left swing arm 6 and the right swing arm 7 away from the left and right sides of the stamping part 2. Since the limiting block 9 is located on the front side of the stamping part 2, the front side of the stamping part 2 will be restricted by the limiting block 9 after it is placed on the worktable 1. The rear side will be pressed together with the rear side of the stamping part 2 by moving the adjusting block 671 forward, thus preventing the stamping part 2 from moving backward and stabilizing it on the worktable 1.

[0018] The left contact part 61 is made of rubber and is detachably connected to the left swing arm 6 by bolts or other means. 1. The rubber material has an elastic buffering effect, which can prevent scratches or indentations on the surface of the stamped part during clamping, thus protecting the appearance quality of the stamped part 2; 2. Since the left contact part 61 can be detachably connected to the left swing arm 6, when the shape and contour of the stamped part 2 change, it can be replaced with a left contact part 61 of a different shape that abuts against the stamped part 2, thereby achieving clamping of the stamped part 2.

[0019] The left contact portion 61 includes an upper mounting plate 611 and a lower mounting plate 612. The bottom of the upper mounting plate 611 is equipped with an insertion section 6111 that is inclined from top to bottom and from left to right. The left swing arm 6 is provided with a mounting groove 63 corresponding to the upper mounting plate 611, and the left swing arm 6 is provided with an insertion groove 64 below the mounting groove 63 for the insertion section 6111 to be inserted. When the left contact portion 61 is installed on the left swing arm 6, the upper and lower mounting plates 612 are located on the upper and lower sides of the left swing arm 6, respectively, so that the left contact portion 61 cannot move vertically relative to the left swing arm 6. When the insertion section 6111 at the bottom of the upper mounting plate 611 enters the insertion groove 64, the insertion section 6111 of the upper mounting plate 611 will not move out without the action of external force and cannot move horizontally, thus facilitating the determination of the position of the upper and lower mounting plates 612 on the left swing arm 6.

[0020] The upper mounting plate 611 is provided with an insertion hole 6112, and the left swing arm 6 is provided with a screw hole 65 corresponding to the insertion hole 6112. After the insertion section 6111 is inserted into the insertion groove 64 and the positions of the upper and lower mounting plates 612 on the left contact part 61 are determined, a bolt / screw that matches the shape and size of the screw hole 65 is inserted into the upper mounting plate 611 and passes through the insertion block to complete the thread engagement with the screw hole 65. This allows the left contact part 61 to be stably fixed on the left swing arm 6 and not fall off as the left swing arm 6 moves.

[0021] The left swing arm 6 also includes a rear positioning part 66. The left positioning post 62 is located above the positioning part 66. The worktable 1 is located behind the positioning part 66 and has a guide rail 11 in the left-right direction. The guide rail 11 has guide grooves 111 on both the upper and lower sides. The positioning part 66 includes guide sections 661 into which each guide groove 111 is inserted. When the first cylinder 5 is activated and the adjusting plate 81 moves in the front-back direction on the worktable 1, the left positioning post 62 of the left swing arm 6 and the right positioning post 71 of the right swing arm 7 will fall to different positions in the left mating groove 811 and the right mating groove 812 as the adjusting plate 81 moves, thereby changing the horizontal position of the left swing arm 6 and the right swing arm 7. Since each guide section 661 on the positioning part 66 is located in the corresponding guide groove 111, it provides guidance for the horizontal movement of the left and right swing arms 7.

[0022] Furthermore, the right side of the left swing arm 6 is open, and a left screw 67 is rotatably mounted inside. Since the left screw 67 cannot move forward or backward, it can only rotate. The adjusting block 671 is threadedly engaged with the left screw 67 and abuts against the rear side of the stamping part 2. A right screw 72 is rotatably mounted inside the right swing arm 7, and the adjusting block 671 is also threadedly engaged on the right screw 72. The system also includes a drive assembly for synchronously rotating the left screw 67 and the right screw 72. When the stamping part to be inspected is... When the stamping part 2 is placed in front of the worktable 1, the drive assembly drives the left and right screws 72 to rotate, causing the adjusting block 671 to move backward. At this time, in addition to the left and right swing arms 7 being located on the left and right end faces of the stamping part 2 respectively, the drive assembly can drive the left screw 67 and the right screw 72 to rotate synchronously, thereby allowing the adjusting block 671 on the left and right screws 72 to move forward along the left and right screws 72 and be located on the rear side of the stamping part 2, thus achieving the limitation of the left, right and rear sides of the stamping part 2.

[0023] By directly fixing the limiting block 9 to the front side of the worktable 1, specifically, as shown in the attached figure, it is located in front of the left contact part 61 and can directly restrict the front side of the stamping part 2, preventing it from passing over the limiting block 9.

[0024] Preferably, the drive assembly includes a timing belt 4. A left pulley 672 is fixedly installed on the front side of the left screw 67 by welding or other means, and a right pulley 721 is fixedly installed on the front side of the right screw 72 by welding or other means. The timing belt 4 is positioned between the left pulley 672 and the right pulley 721. After the motor (not shown in the figure) is fixed to the left pulley 672 or the right pulley 721, the high-speed rotation of one of the pulleys can transmit torque to the timing belt 4, thereby causing the other pulley to rotate at high speed, thus achieving synchronous rotation of the left screw 67 and the right screw 72.

[0025] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for testing the compressive strength of stamped parts, comprising a worktable, a stamped part located on the worktable, a pressure head, a force sensor located above the pressure head, and a first cylinder for driving the pressure head to move up and down, characterized in that: It also includes a left swing arm and a right swing arm located on the left and right sides of the stamping part, and an adjustment module for driving the left swing arm and the right swing arm to move closer or further apart. The left swing arm and the right swing arm are the same shape and size and are symmetrically arranged. A left contact part is installed on the right side of the left swing arm. The adjustment module includes an adjustment plate and a second cylinder linked with the adjustment plate. A left positioning post is provided on the left swing arm protruding upward. A left mating groove is opened on the adjustment plate corresponding to the left positioning post. It also includes an adjustment block located on the worktable and located on the rear side of the stamping part and a limiting block located on the front side of the stamping part.

2. The stamping part compression resistance testing device according to claim 1, characterized in that: The left contact portion is made of rubber and is detachably connected to the left swing arm.

3. The stamping part compression resistance testing device according to claim 2, characterized in that: The left contact portion includes an upper mounting plate and a lower mounting plate. An insertion section is installed at the bottom of the upper mounting plate, which is inclined from top to bottom and from left to right. The left swing arm is provided with a mounting groove corresponding to the upper mounting plate, and an insertion groove for the insertion section is provided below the mounting groove of the left swing arm.

4. The stamping part compression resistance testing device according to claim 3, characterized in that: The upper mounting plate is provided with a socket, and the left swing arm is provided with a screw hole corresponding to the socket.

5. The stamping part compression resistance testing device according to claim 1, characterized in that: The left swing arm also includes a positioning part on the rear side. The left positioning column is located above the positioning part. The worktable is located on the rear side of the positioning part and has a guide rail in the left-right direction. Guide grooves are provided on both the upper and lower sides of the guide rail. The positioning part includes a guide section into which each guide groove is inserted.

6. The stamping part compression resistance testing device according to claim 1, characterized in that: The right side of the left swing arm is open and a left screw is rotatably mounted inside. The adjusting block is threadedly engaged with the left screw and abuts against the rear side of the stamped part. A right screw is rotatably mounted inside the right swing arm. The system also includes a drive assembly that drives the left and right screws to rotate synchronously.

7. The stamping part compression resistance testing device according to claim 6, characterized in that: The drive assembly includes a timing belt, a left rotating wheel is fixedly mounted on the front side of the left screw, a right rotating wheel is fixedly mounted on the front side of the right screw, and the timing belt transmission is arranged between the left and right rotating wheels.

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