Micro space testing device for steel sheet

Abstract

The utility model provides a micro-space testing device for a steel sheet, which comprises a rack, a lower substrate and a lifting cylinder are mounted on the rack, a carrier is mounted on the lower substrate, the carrier is provided with a micro-space for placing the steel sheet, a lower pressing plate is driven by the lifting cylinder, and a needle die front-end carrier plate capable of being attached to the carrier is mounted on the lower pressing plate. A floating block is arranged on the needle die front end carrier plate in a floating mode, the floating block is provided with a protrusion which enters the micro space and can make contact with the steel sheet, a rear end plate is fixedly installed on the needle die front end carrier plate, and a wire needle which can penetrate through the protrusion to make contact with the steel sheet is fixedly installed on the rear end plate. Therefore, when the wire needle is in contact test with the steel sheet, the bulge on the floating block is in contact with the steel sheet in advance so as to fix and position the steel sheet, so that bending deformation caused by pressure generated when the wire needle is in contact with the steel sheet and short circuit caused by contact with the adjacent wire needle are avoided; the utility model belongs to the technical field of test equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing equipment, and in particular relates to a steel sheet micro space testing device. Background Art

[0002] When conducting OS testing on a steel sheet placed in a micro space, since the testing equipment needs to set up multiple wire needles that contact the steel sheet in a smaller space, during the testing process of a conventional testing device, the wire needles are easily bent, deformed, offset, and short-circuited with adjacent wire needles due to the pressure generated when contacting the steel sheet, making it impossible to carry out subsequent testing work. Utility Model Content

[0003] The purpose of the utility model is to provide a steel sheet micro space testing device to solve the technical defects described in the background technology.

[0004] A steel sheet micro-space testing device includes a frame, a lower base plate and a lifting cylinder are installed on the frame, the lower base plate is installed on the carrier, the carrier is provided with a micro-space for placing the steel sheet, the lifting cylinder drives a lower pressure plate, the lower pressure plate is installed with a front end carrier of a needle mold that can fit with the carrier, the front end carrier of the needle mold is floatingly provided with a floating block, the floating block is provided with a protrusion that can enter the micro-space and can contact the steel sheet, the front end carrier of the needle mold is fixedly installed with a rear end plate, and the rear end plate is fixedly installed with a wire needle that can pass through the protrusion and contact the steel sheet.

[0005] According to the technical solution, when testing a steel sheet placed in the micro-space, the lifting cylinder drives the lower pressure plate to descend, and the lower pressure plate drives the front carrier plate of the needle mold to fit the upper surface of the carrier. At this time, the protrusion enters the micro-space and contacts the steel sheet. At the same time, the upper surface of the carrier pushes the floating block upward, so that the needle fixed on the rear end plate can pass through the protrusion and contact the steel sheet for testing. Therefore, the utility model achieves the following beneficial effects:

[0006] 1. In the contact test between the needle and the steel sheet, the protrusion on the floating block is in contact with the steel sheet in advance to fix and position the steel sheet, thereby preventing the needle from bending and deforming due to the pressure generated when the needle contacts the steel sheet, and preventing the needle from short-circuiting with the adjacent needle;

[0007] 2. Since the thread needle needs to pass through the protrusion to contact the steel sheet, the protrusion can limit the thread needle from deflecting and deforming and contacting the adjacent thread needle;

[0008] 3. When testing the steel sheet, the upper surface of the carrier needs to be used to push the floating block up to expose the thread needle. Therefore, when the thread needle is not in contact with the steel sheet, the protrusion on the floating block can protect the thread needle.

[0009] In order to further optimize the above technical solution, it can be optionally combined with one or more of the following implementation methods without conflict.

[0010] In some embodiments, a guide sleeve is installed on the front-end carrier plate of the needle mold, and a guide column is installed on the floating block that passes through the guide sleeve and can slide inside; according to the technical solution, when the upper surface of the carrier pushes the floating block to rise, the floating block can be stably lifted and lowered vertically, so that the protrusion can enter the micro space more stably and accurately and contact the steel sheet.

[0011] In some embodiments, a buffer spring is installed between the front end carrier plate of the needle mold and the floating block; according to the technical solution, the buffer spring can be used to buffer the impact force generated when the upper surface of the carrier contacts the floating block. At the same time, the pressure when the floating block contacts the steel sheet and the needle contacts the steel sheet can be buffered, thereby reducing the possibility of further bending and deformation of the needle.

[0012] In some embodiments, the floating block is installed with a contour sleeve that passes through and hangs on the front end carrier of the needle mold; according to the technical solution, through the setting of the contour sleeve, when the upper surface of the carrier is not in contact with the floating block, the distance between the floating block and the front end carrier of the needle mold is limited, thereby avoiding the need for a large thrust or downward force to push the floating block up, thereby reducing the damage caused by the protrusion applying excessive pressure based on the steel sheet.

[0013] In some embodiments, the carrier is provided with a positioning hole, and the front end carrier plate of the needle mold is installed with a positioning column that can enter the positioning hole; according to the technical solution, when the lifting cylinder drives the lower pressure plate to descend, the positioning column enters the positioning hole, so that the front end carrier plate of the needle mold can accurately fit the upper surface of the carrier, so that the needle can accurately contact the steel sheet.

[0014] In some embodiments, the front end carrier plate of the needle mold is provided with a reinforcement guide hole for the thread needle to pass through; according to the technical solution, the middle position of the thread needle is supported and reinforced by the reinforcement guide hole, thereby further reducing the possibility of bending, deformation and deviation of the thread needle.

[0015] In some embodiments, the floating block is provided with a supporting push block that can contact the carrier; according to the technical solution, the carrier pushes the floating block up through the supporting push block, thereby reducing the pressure on the steel sheet caused by the protrusion on the floating block when pushing the floating block up.

[0016] In some embodiments, a suction nozzle is provided at the bottom of the micro space; according to the technical solution, the steel sheet is fixed in the micro space by the suction nozzle, so that the needle can contact a certain part of the steel sheet more accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the present invention, the following is a brief description of the drawings and reference numerals required to be used in the description of the specific implementation.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the carrier of the utility model;

[0020] Figure 3 This is a structural diagram of the front end carrier plate of the needle mold of the utility model;

[0021] Figure 4 This is a schematic diagram of the bottom structure of the floating block of the utility model;

[0022] Figure 5 This is a cross-sectional view of the front end carrier plate of the needle mold of the present invention;

[0023] Figure 6 It is a cross-sectional view of the centerline needle position of the front end carrier plate of the needle mold of the present invention.

[0024] Reference numerals:

[0025] 1. Frame; 2. Lower base plate; 21. Carrier; 22. Micro space; 23. Positioning hole; 24. Suction nozzle; 3. Lifting cylinder; 31. Lower pressure plate; 32. Front carrier plate of needle mold; 33. Guide sleeve; 34. Positioning column; 35. Reinforcement guide hole; 4. Floating block; 41. Protrusion; 42. Guide column; 43. Buffer spring; 44. Contour sleeve; 45. Support push block; 5. Rear end plate; 51. Thread needle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with specific implementation methods and with reference to the accompanying drawings.

[0027] like Figures 1 to 6 As shown, this specific embodiment provides a steel sheet micro space testing device, which includes a frame 1, and the frame 1 is equipped with a lower base plate 2 and a lifting cylinder 3.

[0028] The lower substrate 2 is provided with a carrier 21 , which is provided with a micro space 22 for placing the steel sheet. A suction nozzle 24 for adsorbing and fixing the steel sheet is provided at the bottom of the micro space 22 . The carrier 21 is provided with a positioning hole 23 .

[0029] The lifting cylinder 3 drives a lower pressing plate 31 , and the lower pressing plate 31 is installed with a needle mold front end carrier plate 32 that can be fitted with the carrier 21 .

[0030] The front end carrier plate 32 of the needle mold is installed with a positioning column 34, a guide sleeve 33 and a rear end plate 5. The front end carrier plate 32 of the needle mold is provided with a reinforcement guide hole 35.

[0031] When the front carrier plate 32 of the needle mold is in contact with the carrier 21, the positioning post 34 enters the positioning hole 23. A floating block 4 is provided on the front carrier plate 32. The floating block 4 is equipped with a sleeve 44 of equal height that passes through and hangs on the front carrier plate 32. A buffer spring 43 is installed between the front carrier plate 32 and the floating block 4. The floating block 4 is equipped with a guide post 42 that passes through and slides within the guide sleeve 33. The floating block 4 is equipped with a protrusion 41. When the front carrier plate 32 of the needle mold is in contact with the carrier 21, the protrusion 41 enters the micro-space 22 and can contact the steel sheet. The floating block 4 is equipped with a support push block 45 that can contact the upper surface of the carrier 21.

[0032] The rear end plate 5 is fixedly mounted on the front end carrier plate 32 of the needle mold. The rear end plate 5 is fixedly mounted with a thread needle 51 that can pass through the reinforcement guide hole 35 and the protrusion 41 and contact the steel sheet.

[0033] The following is the working process of the steel sheet micro space 22 testing device:

[0034] The steel sheet is placed in the micro space 22 on the carrier 21. At this time, the suction nozzle 24 adsorbs and fixes the steel sheet. After that, the lifting cylinder 3 drives the lower pressure plate 31 to descend, and the lower pressure plate 31 drives the front end carrier plate 32 of the needle mold to fit the upper surface of the carrier 21. At this time, the upper surface of the carrier 21 pushes the floating block 4 to rise through the support push block 45, so that the protrusion 41 enters the micro space 22 and contacts the steel sheet to fix and position the steel sheet. At the same time, the thread needle 51 fixedly installed on the rear end plate 5 can pass through the protrusion 41 and contact the steel sheet for testing.

Claims

1. A steel sheet micro-space testing device, comprising a frame (1), the frame (1) being equipped with a lower base plate (2) and a lifting cylinder (3), the lower base plate (2) being equipped with a carrier (21), the carrier (21) being provided with a micro-space (22) for placing the steel sheet, characterized in that: The lifting cylinder (3) drives a lower pressure plate (31), and the lower pressure plate (31) is installed with a needle mold front end carrier plate (32) that can be fitted with the carrier (21). The needle mold front end carrier plate (32) is floatingly provided with a floating block (4), and the floating block (4) is provided with a protrusion (41) that enters the micro space (22) and can contact the steel sheet. The needle mold front end carrier plate (32) is fixedly installed with a rear end plate (5), and the rear end plate (5) is fixedly installed with a thread needle (51) that can pass through the protrusion (41) and contact the steel sheet.

2. The steel sheet micro space testing device according to claim 1, characterized in that: The front end carrier plate (32) of the needle mold is provided with a guide sleeve (33), and the floating block (4) is provided with a guide column (42) which passes through the guide sleeve (33) and can slide inside.

3. The steel sheet micro space testing device according to claim 2, characterized in that: A buffer spring (43) is installed between the front end carrier plate (32) of the needle mold and the floating block (4).

4. The steel sheet micro space testing device according to claim 2, characterized in that: The floating block (4) is provided with a contour sleeve (44) passing through and hanging on the front end carrier plate (32) of the needle mold.

5. The steel sheet micro space testing device according to claim 1, characterized in that: The carrier (21) is provided with a positioning hole (23), and the front end carrier plate (32) of the needle mold is provided with a positioning column (34) that can enter the positioning hole (23).

6. The steel sheet micro space testing device according to claim 1, characterized in that: The front end carrier plate (32) of the needle mold is provided with a reinforcement guide hole (35) for the thread needle (51) to pass through.

7. The steel sheet micro space testing device according to claim 1, characterized in that: The floating block (4) is provided with a supporting push block (45) capable of contacting the carrier (21).

8. The steel sheet micro space testing device according to claim 1, characterized in that: A suction nozzle (24) is provided at the bottom of the micro space (22).

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