Compression type double-plate guide blind hole testing fixture

Abstract

The utility model relates to the technical field of blind hole detection tools, in particular to a compression type double-plate guide blind hole detection tool, which comprises a positioning table for supporting a workpiece, a positioning plate arranged below the positioning table, a detection needle arranged on the positioning plate, a first positioning hole formed on the positioning table and used for the detection needle to pass through, and a second positioning hole formed on the positioning table and used for the detection needle to pass through. A pressing mechanism for pressing a workpiece to the positioning table is arranged at the top of the positioning table, the pressing mechanism comprises a pressing plate capable of longitudinally swinging above the positioning table and a pressurizing block matched with the pressing plate, and the pressurizing block can longitudinally move to drive the pressing plate to descend; a workpiece needing blind hole detection is placed in the positioning table and positioned, then the pressing mechanism works, the pressing plate longitudinally swings, the workpiece is pressed into the positioning table, the pressurizing block longitudinally presses downwards, the pressurizing plate is driven to further press downwards, the gap between the workpiece and the positioning table is reduced, it can be better guaranteed that the workpiece is tightly attached to the positioning table, and the blind hole detection efficiency is improved. When the detection needle passes through the first positioning hole for detection, the accuracy of blind hole detection is improved.

Description

Technical Field

[0001] This utility model relates to the field of blind hole inspection tools, and in particular to a clamping double-plate guide blind hole inspection tool. Background Technology

[0002] Blind hole gauges are tools or equipment used to check whether the relevant parameters of blind holes (such as hole diameter, hole depth, hole position, roundness, cylindricity, etc.) meet the design requirements.

[0003] Blind hole inspection fixtures typically include a worktable, a component positioning mechanism, and an inner wall inspection mechanism. The component positioning mechanism is used to position, support, and clamp the product to be inspected. The inner wall inspection mechanism extends the inspection section through a side-pushing mechanism to inspect the position of blind holes on the inner wall of the product. Inspection can be performed under the reference of the product assembly, improving inspection accuracy.

[0004] When inspecting blind holes, the product is usually positioned on a platform, and then a test probe is inserted into the blind hole for inspection. However, existing positioning stages do not allow for a high degree of fit between the product and the platform during positioning, resulting in some tilting. This leads to inaccurate hole depth measurements when inspecting blind holes, failing to meet the accuracy requirements for inspection. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping double-plate guide blind hole inspection tool to address the shortcomings of the existing technology.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A clamping double-plate guide blind hole gauge includes a positioning stage for supporting the workpiece, a positioning plate provided below the positioning stage, a detection pin provided on the positioning plate, a first positioning hole formed on the positioning stage for the detection pin to pass through, and a clamping mechanism provided on the top of the positioning stage for pressing the workpiece to the positioning stage. The clamping mechanism includes a pressure plate that can swing longitudinally above the positioning stage and a pressure block that cooperates with the pressure plate. The pressure block can move longitudinally to drive the pressure plate to descend.

[0008] Furthermore, the clamping mechanism also includes a first support column for mounting the pressure plate, one end of which is rotatably connected to the first support column, and the pressure plate can swing longitudinally around the top of the first support column.

[0009] Furthermore: the positioning platform is provided with a second support column that is laterally aligned with the first support column. The bottom of the second support column is rotatably connected to the positioning platform. The second support column can swing longitudinally around the top of the positioning platform. The second support column is formed with a longitudinal groove, and a pressure block is disposed in the longitudinal groove.

[0010] Furthermore: the end of the pressure plate near the second support column is formed with a fitting area, and the fitting area is formed with a notch, the width of which matches the width of the second support column.

[0011] Furthermore, the mating area is also formed with a concave pressing groove, which is longitudinally aligned with the pressing block.

[0012] Furthermore: the longitudinal slide is equipped with a longitudinally arranged compression spring, and the pressure block is installed at the bottom of the compression spring. The elastic force of the compression spring drives the pressure block to press down.

[0013] Furthermore: the second support column has an adjustment hole formed longitudinally, and an adjustment rod capable of longitudinal movement is installed in the adjustment hole. The bottom of the adjustment rod is connected to a compression spring.

[0014] Furthermore: a concave hinge groove is formed on one side of the top of the positioning platform, and a hinge shaft is installed in the hinge groove; a hinge hole is formed at the bottom of the second support column, which is coaxial with the hinge shaft.

[0015] Furthermore: a height-adjusting block is provided between the positioning platform and the positioning plate, with the height-adjusting blocks located on the left and right sides of the positioning plate respectively, and the positioning platform is provided with a locking screw connected to the height-adjusting block.

[0016] The beneficial effects of this utility model are as follows: The workpiece that needs to be inspected for blind holes is placed into the positioning stage and positioned. Then, the clamping mechanism works, the pressure plate swings longitudinally, and the workpiece is pressed into the positioning stage. The pressure block presses down longitudinally, which drives the pressure plate to press down further, reducing the gap between the workpiece and the positioning stage. This can better ensure that the workpiece fits tightly against the positioning stage, making it easier for the detection needle to pass through the first positioning hole and improving the accuracy of blind hole detection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the blind hole inspection tool.

[0018] Figure 2 This is a schematic diagram of the exploded structure of a blind hole inspection tool.

[0019] The reference numerals in the figures include:

[0020] 1-Positioning stage,

[0021] 10-Workpiece, 11-Positioning plate, 12-Detection pin, 13-Positioning post, 14-First positioning hole

[0022] 15-Second positioning hole, 16-Return spring, 17-Elevation block, 18-Locking screw, 19-Modible hole

[0023] 2-Pressure mechanism,

[0024] 21-First support column, 22-Pressure plate, 23-Matching area, 24-Notch groove, 25-Lower pressure groove

[0025] 3-Second support column

[0026] 31-Hinge groove, 32-Hinge shaft, 33-Hinge hole, 34-Longitudinal slide groove, 35-Pressure block,

[0027] 36 - Compression spring, 37 - Adjustment hole, 38 - Adjustment rod. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] like Figure 1-2 As shown, the clamping type double-plate guide blind hole gauge includes a positioning table 1 for supporting the workpiece 10. A positioning plate 11 is provided below the positioning table 1. The positioning plate 11 is provided with a detection needle 12 and a positioning post 13. The positioning table 1 is formed with a first positioning hole 14 for the detection needle 12 to pass through and a second positioning hole 15 for the positioning post 13 to pass through. A clamping mechanism 2 is provided on the top of the positioning table 1 to clamp the workpiece 10 to the positioning table 1. The clamping mechanism 2 includes a pressure plate 22 that can swing longitudinally above the positioning table 1 and a pressure block 35 that cooperates with the pressure plate 22. The pressure block 35 can move longitudinally to drive the pressure plate 22 to descend. The workpiece 10, which needs to be inspected for blind holes, is placed into the positioning table 1 and positioned. Then, the clamping mechanism 2 works, and the pressure plate 22 swings longitudinally to press the workpiece 10 into the positioning table 1. The pressure block 35 presses down longitudinally, which drives the pressure plate 22 to press down further, reducing the gap between the workpiece 10 and the positioning table 1. This can better ensure that the workpiece 10 fits tightly against the positioning table 1, making it easier for the detection needle 12 to pass through the first positioning hole 14 for inspection, thus improving the accuracy of blind hole inspection.

[0030] Furthermore, the clamping mechanism 2 also includes a first support column 21 for mounting the pressure plate 22. One end of the pressure plate 22 is rotatably connected to the first support column 21, and the pressure plate 22 can swing longitudinally around the top of the first support column 21. By swinging the pressure plate 22, the pressure plate 22 sinks down, pressing the workpiece 10 onto the positioning table 1, improving the fit and facilitating subsequent inspection.

[0031] Furthermore, the positioning platform 1 is provided with a second support column 3 that is laterally aligned with the first support column 21. The bottom of the second support column 3 is rotatably connected to the positioning platform 1. The second support column 3 can swing longitudinally around the top of the positioning platform 1. The second support column 3 is formed with a longitudinal groove 34, and a pressure block 35 is disposed in the longitudinal groove 34. When the pressure plate 22 swings around the top of the first support column 21 and presses down on the workpiece 10, in order to further increase the downward force, the pressure block 35 located in the longitudinal groove 34 presses down to prevent the other end of the pressure plate 22 from tilting up and to ensure the overall downward pressure height of the pressure plate 22.

[0032] Furthermore, the end of the pressure plate 22 near the second support column 3 has a fitting area 23, and the fitting area 23 has a notch 24. The width of the notch 24 matches the width of the second support column 3. After the pressure plate 22 swings to press down the workpiece 10, the notch 24 in the fitting area 23 fits perfectly with the second support column 3 and gets stuck on the second support column 3. At this time, the pressure plate 22 cannot move laterally, further improving the stability of the pressing down.

[0033] The fitting area 23 is also formed with a concave pressing groove 25, which is longitudinally aligned with the pressure block. A longitudinally arranged compression spring 36 is provided in the longitudinal slide 34. The pressure block 35 is installed at the bottom of the compression spring 36, and the elastic force of the compression spring 36 drives the pressure block 35 to press down. After the pressure plate 22 is pressed down, when the notch 24 is engaged with the second support column 3, the pressing groove 25 in the fitting area 23 is vertically aligned with the longitudinal slide 34. At this time, the pressure block 35, under the elastic pressure of the compression spring 36, cooperates with the pressing groove 25 to hold the pressure plate 22 in place, preventing the pressure plate 22 from shifting and preventing the workpiece 10 from bouncing off the positioning table 1, thereby improving stability during inspection.

[0034] Preferably, the second support column 3 has a longitudinally formed adjustment hole 37, and an adjustment rod 38 capable of longitudinal movement is installed in the adjustment hole 37. The bottom of the adjustment rod 38 is connected to the compression spring 36. After the pressure plate 22 is pressed down and engages with the second support column 3 through the notch 24, the adjustment rod 38 located in the adjustment hole 37 can be rotated. At this time, the adjustment rod 38 can engage with the adjustment hole 37 to achieve lifting and lowering, thereby driving the compression spring 36 to continue to press or loosen. Under the action of the compression spring 36, the pressure block 35 has a buffering effect. By adjusting the overall length of the compression spring 36, the elastic downward pressure can be adjusted, and the buffering effect can be adjusted.

[0035] Preferably, a concave hinge groove 31 is formed on one side of the top of the positioning table 1, and a hinge shaft 32 is installed in the hinge groove 31. The bottom of the second support column 3 is formed with a hinge hole 33 that is coaxially engaged with the hinge shaft 32. Initially, the second support column 3 swings outward, and the pressure plate 22 swings outward to allow the workpiece 10 to be installed on the positioning table 1. Then, the pressure plate 22 swings, causing it to press down on the workpiece 10. Subsequently, the second support column 3 swings upward through the hinge structure and engages with the notch 24 of the pressure plate 22 to achieve a snap-fit ​​connection. The engagement of the pressure block 35 and the downward pressure groove 25 prevents the second support column 3 from continuing to swing, ensuring the stability of the connection between the second support column 3 and the pressure plate 22.

[0036] A height-adjusting block 17 is provided between the positioning platform 1 and the positioning plate 11. The height-adjusting block 17 is located on the left and right sides of the positioning plate 11 respectively. The positioning platform 1 is provided with a locking screw 18 connected to the height-adjusting block 17. The positioning rod and the positioning column 13 are installed on the top of the positioning plate 11. The height-adjusting block 17 can separate the positioning platform 1 from the positioning plate 11.

[0037] In addition, the detection needle 12 is equipped with a return spring 16, which can retract the detection needle 12 to a safe distance before detection, thus preventing the workpiece 10 from bumping into the detection needle 12 when clamping.

[0038] Preferably, the positioning plate 11 has a movable hole 19 for the detection needle 12 to move through, and a lifting plate is provided at the bottom of the positioning plate 11. The bottom of the detection needle 12 passes through the movable hole 19 and is connected to the lifting plate. The lifting plate can be lifted and lowered by the lifting cylinder to move the detection needle 12 closer to or away from the blind hole position of the workpiece 10.

[0039] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0040] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A clamping-type double-plate guided blind hole gauge, comprising a positioning stage for supporting a workpiece, a positioning plate disposed below the positioning stage, a detection pin disposed on the positioning plate, and a first positioning hole formed on the positioning stage for the detection pin to pass through, characterized in that: The top of the positioning table is provided with a pressing mechanism for pressing the workpiece to the positioning table. The pressing mechanism includes a pressure plate that can swing longitudinally above the positioning table and a pressure block that cooperates with the pressure plate. The pressure block can move longitudinally to drive the pressure plate to descend.

2. The clamping double-plate guide blind hole gauge according to claim 1, characterized in that: The clamping mechanism also includes a first support column for mounting the pressure plate. One end of the pressure plate is rotatably connected to the first support column, and the pressure plate can swing longitudinally around the top of the first support column.

3. The clamping double-plate guide blind hole gauge according to claim 2, characterized in that: The positioning platform is provided with a second support column that is laterally aligned with the first support column. The bottom of the second support column is rotatably connected to the positioning platform. The second support column can swing longitudinally around the top of the positioning platform. The second support column is formed with a longitudinal groove, and a pressure block is disposed in the longitudinal groove.

4. The clamping double-plate guide blind hole gauge according to claim 3, characterized in that: The pressure plate has a fitting area formed at one end near the second support column, and the fitting area has a notch or groove, the width of which matches the width of the second support column.

5. The clamping double-plate guide blind hole gauge according to claim 4, characterized in that: The fitting area is also formed with a concave pressing groove, which is longitudinally aligned with the pressure block.

6. The clamping double-plate guide blind hole gauge according to claim 5, characterized in that: The longitudinal slide is equipped with a longitudinally arranged compression spring, and the pressure block is installed at the bottom of the compression spring. The elastic force of the compression spring drives the pressure block to press down.

7. The clamping double-plate guide blind hole gauge according to claim 6, characterized in that: The second support column has an adjustment hole formed longitudinally, and an adjustment rod that can move longitudinally is installed in the adjustment hole. The bottom of the adjustment rod is connected to a compression spring.

8. The clamping double-plate guide blind hole gauge according to claim 7, characterized in that: The top side of the positioning platform is formed with a concave hinge groove, and a hinge shaft is installed in the hinge groove. The bottom of the second support column is formed with a hinge hole that is coaxially fitted with the hinge shaft.

9. The clamping double-plate guide blind hole gauge according to claim 1, characterized in that: A height-adjusting block is provided between the positioning platform and the positioning plate. The height-adjusting blocks are located on the left and right sides of the positioning plate, and the positioning platform is provided with a locking screw connected to the height-adjusting block.

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