Hole depth detection device

Abstract

The utility model relates to a hole depth detection device, and relates to the field of product detection, and the device comprises a rack, the rack is provided with a first support, the first support is provided with a horizontal positioning platform, the upper end surface of the positioning platform is provided with a positioning block, the positioning platform is provided with a vertical detection hole, and the detection hole extends upwards to the upper end surface of the positioning block. The rack is provided with a second support used for installing the probe, the second support is provided with a driving device used for driving the probe to move in the vertical direction, and the axis of the probe coincides with the axis of the detection hole. The method and the device have the effect of improving the precision when the equipment is zeroed.

Description

TECHNICAL FIELD

[0001] The application relates to the field of product detection, in particular to a hole depth detection device. BACKGROUND

[0002] At present, after drilling operation of a part, the drilling depth of a drilling device may be deviated, thereby causing inconsistent hole depths, so that the hole depth of the part needs to be detected, and the part with excessively deep or shallow drilling is rejected.

[0003] The related technology discloses a part hole depth detector in Chinese Patent No. CN209101977U, which comprises a mounting base, a positioning assembly arranged on the mounting base, a micrometer and a support assembly for fixing the micrometer. The support assembly comprises a connecting support, a connecting sleeve, a guide sleeve and a guide column. The bottom of the guide column is fixedly connected with the mounting base. One end of the connecting support is connected with the sleeve of the micrometer, and the other end of the connecting support penetrates one end of the connecting sleeve. The other end of the connecting sleeve is connected with the guide sleeve. The guide sleeve is sleeved on the guide column. A pressing plate is arranged on the guide sleeve. A reset element is arranged below the guide sleeve. The reset element is a reset spring. The reset spring is sleeved on the guide column. The micrometer is a digital micrometer. The measuring rod of the micrometer is vertically arranged.

[0004] In the related technology, during the zero adjustment of the reference surface, the positioning table is adjusted by using a gear and manually, so that after the adjustment is completed, the hole plane and the bottom of the measuring rod of the micrometer are not coplanar, and thus an error is caused in the measurement result. Utility model content

[0005] In order to improve the accuracy during the zero adjustment of the equipment, the application provides a hole depth detection device.

[0006] The application provides a hole depth detection device, which adopts the following technical scheme:

[0007] The hole depth detection device comprises a rack. The rack is provided with a first support. The first support is provided with a horizontal positioning platform. An upper end surface of the positioning platform is provided with a positioning block. The positioning platform is provided with a vertical detection hole. The detection hole extends upward to the upper end surface of the positioning block. The rack is provided with a second support for mounting a probe. The second support is provided with a driving device for driving the probe to move vertically. The probe is coaxial with the axis of the detection hole.

[0008] When the equipment is zero adjusted, the unperforated part is placed on the upper end surface of the positioning block, so that the upper end surface of the positioning block serves as a reference surface. The driving device drives the probe to move upward. When the probe touches the part, the position is recorded as a zero point. Manual adjustment is not needed, and the accuracy of the zero adjustment is effectively improved.

[0009] Optionally, the rack is provided with a third support, the third support is provided with a storage block, the storage block is provided with a vertical guide hole, the inner wall of the guide hole is provided with a storage platform for placing parts, the inner diameter of the guide hole is the same as the outer diameter of the positioning block, and the axis of the guide hole coincides with the axis of the detection hole.

[0010] By adopting the above technical scheme, the third support is arranged on the rack, the storage block is arranged on the support, the guide hole and the storage platform are arranged on the storage block, the parts to be detected are placed in the storage platform to limit the parts, and the movement of the parts is reduced.

[0011] Optionally, the lower end surface of the storage platform is provided with a first circular arc surface, the upper end surface of the positioning block is provided with a second circular arc surface, the first circular arc surface is matched with the second circular arc surface, and when the first circular arc surface is attached to the second circular arc surface, the upper end surface of the positioning block and the upper end surface of the storage platform are in the same horizontal plane.

[0012] By adopting the above technical scheme, when the positioning platform moves upward and the positioning block is attached, the first circular arc surface and the second circular arc surface are tightly attached, and the upper end surface of the positioning block and the upper end surface of the storage platform jointly form a reference surface, which provides effective support for the parts to be detected without affecting the calibration accuracy.

[0013] Optionally, the first support is provided with a first cylinder for driving the positioning platform to move up and down.

[0014] By adopting the above technical scheme, when the parts in the storage block need to be taken out, the positioning platform is moved downward by using the first cylinder, and the parts are conveniently taken out of the storage block.

[0015] Optionally, the first cylinder is provided with a cylinder magnetic sensor for detecting the position of the cylinder rod in the first cylinder.

[0016] By adopting the above technical scheme, when the first cylinder moves upward and the positioning block is moved into position, the cylinder magnetic sensor senses that the cylinder has moved into position, and then the driving device drives the probe to move upward to detect the parts to be detected, thereby realizing automatic control of the detection process.

[0017] Optionally, the lower end surface of the positioning platform is provided with a horizontal sliding groove, the cylinder rod of the first cylinder is provided with a clamping block in sliding connection with the inner wall of the horizontal sliding groove, and the positioning platform is provided with a connecting bolt for connecting with the first cylinder.

[0018] By adopting the above technical scheme, when the position of the positioning platform needs to be adjusted, the position of the positioning platform is adjusted along the sliding groove, and the stable connection is realized through the bolt, thereby realizing the position adjustment of the positioning platform.

[0019] Optionally, the rack is provided with a fourth support, the fourth support is provided with a vertical second cylinder, the cylinder rod of the second cylinder is provided with a pressing block at the end, and the pressing block is located directly above the positioning block.

[0020] By adopting the technical scheme, the pressing block is placed above the part to be measured, the pressing block is driven by the second cylinder to move up and down, and the part to be measured is pressed in the guide hole of the placing block by the pressing block, so that the part to be measured is limited, and the movement of the part to be measured is effectively reduced.

[0021] Optionally, the probe is detachably connected with the driving device.

[0022] By adopting the technical scheme, when the probe needs to be replaced due to damage, the probe is detached from the driving device, and a new probe is replaced, so that the replacement of the probe is facilitated.

[0023] In summary, the present application has the following beneficial technical effects of at least one hole depth detection device:

[0024] 1. When zero setting of the equipment is performed, an unperforated part is placed on the upper end face of the positioning block to make the upper end face of the positioning block as a reference surface, the probe is moved upward by the driving device, and when the probe touches the part, the position is recorded as a zero point, without manual adjustment, and the accuracy of zero setting is effectively improved.

[0025] 2. The third support is arranged on the rack, and the placing block is arranged on the support, a guide hole is arranged on the placing block, and the placing block is arranged on the placing table, the part to be measured is placed in the placing table to limit the part, and the movement of the part is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a hole depth detection device.

[0027] Figure 2 It is a schematic diagram of the cross section of a hole depth detection device.

[0028] Figure 3 It is Figure 2 It is an enlarged schematic diagram of part A in

[0029] BRIEF DESCRIPTION OF DRAWINGS: 1, rack; 2, first support; 21, first cylinder; 211, cylinder magnetic sensor; 22, positioning platform; 221, horizontal sliding groove; 222, clamping block; 23, positioning block; 231, second circular surface; 3, second support; 31, driving device; 32, probe; 4, third support; 41, placing block; 411, placing table; 412, first circular surface; 5, fourth support; 51, second cylinder; 511, pressing block. DETAILED DESCRIPTION

[0030] The present application will be further described in detail below in combination with all the drawings.

[0031] The present application discloses a hole depth detection device.

[0032] Refer toFigure 1 A hole depth detection device, comprising a rack 1, the rack 1 provides support for all parts, the shape is not limited, and the rack in the embodiment is preferably a rectangular platform. The rack is provided with a first support 2, a second support 3 and a third support 4, the first support 2 and the second support 3 are a detection space, and the third support 4 is located on one side of the detection space.

[0033] Referring to Figure 1 With Figure 2 , the third support 4 is provided with a storage block 41, the storage block 41 is provided with a vertical guide hole, and the inner wall of the guide hole is provided with a storage table 411 for placing parts. The storage table 411 is installed on the inner wall of the storage block 41, and the parts to be measured are placed on the storage table 411 in the guide hole. Due to the weight of the parts to be measured, the parts are pressed on the storage table 411, and the inner wall of the guide hole and the storage table 411 limit the parts to be measured.

[0034] Referring to Figure 1 With Figure 2 , the first support 2 is provided with a horizontal positioning platform 22, the upper end surface of the positioning platform 22 is provided with a positioning block 23, and the lower end surface of the positioning platform 22 is provided with a horizontal sliding groove 221. The first support 2 is provided with a clamping block 222 which is in sliding connection with the inner wall of the horizontal sliding groove 221, and the positioning platform 22 is provided with a connecting bolt for connecting with the first support 2. The first support 2 is provided with a first cylinder 21 for driving the positioning platform 22 to move up and down. The inner diameter of the guide hole is the same as the outer diameter of the positioning block 23, and the axis of the guide hole coincides with the axis of the detection hole. Before using the device, the device needs to be zeroed, the positioning platform 22 is installed on the first support 2, the positioning platform 22 is moved upward during the adjustment process, and the positioning platform 22 is slid along the horizontal sliding groove 221 to make the positioning block 23 on the positioning platform 22 located in the guide hole. Tighten the connecting bolt to connect the first support 2 and the positioning platform 22. The cylinder rod of the first cylinder 21 is lifted and lowered several times to check whether the positioning block 23 can smoothly enter the guide hole. If there is a jam or collision, adjust the positioning block 23 to smoothly enter the guide hole.

[0035] Referring to Figure 1 , the first cylinder 21 has the advantage that when the first cylinder 21 moves downward to move the positioning platform 22 downward, it is convenient to take out the parts to be measured from the storage block 41.

[0036] Referring to Figure 2 With Figure 3, The positioning platform 22 is provided with a vertical detection hole extending to the upper end surface of the positioning block 23, the lower end surface of the object table 411 is provided with a first circular arc surface 412, the upper end surface of the positioning block 23 is provided with a second circular arc surface 231, the first circular arc surface 412 and the second circular arc surface 231 are matched, and when the first circular arc surface 412 and the second circular arc surface 231 are matched, the upper end surface of the positioning block 23 and the upper end surface of the object table 411 are in the same horizontal plane. After the positioning platform 22 is adjusted, when the positioning platform 22 moves upward, the first circular arc surface 412 located at the lower end surface of the object table 411 and the second circular arc surface 231 located at the upper end surface of the positioning block 23 are tightly attached together, the upper end surface of the positioning block 23 and the upper end surface of the object table 41 are located in the same horizontal plane, thereby forming a reference surface. The detection hole penetrating through the positioning block 23 is arranged on the positioning platform 22, which is used for the probe 32 to pass through the positioning platform 22 to detect the hole depth of the part to be detected in the guide hole.

[0037] Referring to Figure 3 , the second support 3 is provided with a driving device 31 for driving the probe 32 to move vertically, and a cylinder is preferably used as the driving device 31 in the embodiment. The probe 32 coincides with the axis of the detection hole. When the equipment is zeroed, a part with an unprocessed hole is placed on the object table 411, and the positioning platform 22 is moved to the position for detection, and the probe 32 is driven upward by the cylinder, and when the probe 32 touches the lower end surface of the unprocessed part, the position of the probe 32 at this time is recorded, and the zero point of the equipment is detected at this time.

[0038] Referring to Figure 2 , the first cylinder 21 is provided with a cylinder magnetic sensor 211 for detecting the position of the cylinder rod in the first cylinder 21. When the equipment is normally used, after the part to be detected is placed on the object table 411 in the object block 41, the first cylinder 21 is moved upward to move the positioning block 23 to the position, and after the positioning block 23 is sensed to be in place by the cylinder magnetic sensor 211, the driving device 31 drives the probe 32 to move upward for detection.

[0039] Referring to Figure 2 and Figure 3 , the rack 1 is provided with a fourth support 5, the fourth support 5 is provided with a vertical second cylinder 51, and the end of the cylinder rod of the second cylinder 51 is provided with a pressing block 511, and the pressing block 511 is located directly above the positioning block 23. When the positioning platform 22 moves to the position, the second cylinder 51 drives the pressing block 511 to move downward, so that the pressing block 511 presses on the upper end surface of the part to be detected. The object table 411, the positioning block 23, the guide hole and the pressing block 511 are used to fix the part to be detected, so as to prevent the part to be detected from moving during the detection of the hole depth.

[0040] Referring to Figure 2The probe 32 is detachably connected with the driving device 31. In the present example, the detachable connection of the probe 32 is realized by using a hole clamping block and a bolt. When the probe 32 is damaged, the damaged probe 32 can be easily removed and replaced by a new probe 32 because the connection between the probe 32 and the driving device 31 is detachable.

[0041] The implementation principle of the hole depth detection device is as follows: the positioning platform 22 and the positioning block 23 are arranged, and the detection hole penetrating through the positioning block 23 and the positioning platform 22 is arranged; when the device is zeroed, the un-punched part is placed on the positioning block 23, and the upper end surface of the positioning block 23 is used as the reference surface; the probe 32 is moved, and the zero position is recorded. The limiting of the part to be detected is realized by arranging the object block 41, the guide hole and the pressing block 511, so that the accuracy is prevented from being reduced due to the movement during detection and zeroing.

[0042] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A hole depth detection device comprising a frame (1), characterized in that: The rack (1) is provided with a first support (2), the first support (2) is provided with a horizontal positioning platform (22), the upper end surface of the positioning platform (22) is provided with a positioning block (23), the positioning platform (22) is provided with a vertical detection hole, the detection hole extends upward to the upper end surface of the positioning block (23), the rack (1) is provided with a second support (3) for mounting a probe (32), the second support (3) is provided with a driving device (31) for driving the probe (32) to move vertically, and the probe (32) is coaxial with the detection hole axis.

2. The hole depth detection device according to claim 1, characterized by: The rack (1) is provided with a third support (4), the third support (4) is provided with a placing block (41), the placing block (41) is provided with a vertical guide hole, the inner wall of the guide hole is provided with a placing table (411) for placing parts, the inner diameter of the guide hole is the same as the outer diameter of the positioning block (23), and the guide hole axis is coaxial with the detection hole axis.

3. The hole depth detection device of claim 2, wherein: The lower end surface of the placing table (411) is provided with a first circular arc surface (412), the upper end surface edge of the positioning block (23) is provided with a second circular arc surface (231), the first circular arc surface (412) is matched with the second circular arc surface (231), when the first circular arc surface (412) is attached to the second circular arc surface (231), the upper end surface of the positioning block (23) and the upper end surface of the placing table (411) are in the same horizontal plane.

4. The hole depth detection device of claim 2, wherein: The first support (2) is provided with a first cylinder (21) for driving the positioning platform (22) to move up and down.

5. The hole depth detection device of claim 4, wherein: The first cylinder (21) is provided with a cylinder magnetic sensor (211) for detecting the position of the cylinder rod in the first cylinder (21).

6. The hole depth detection device of claim 4, wherein: The lower end surface of the positioning platform (22) is provided with a horizontal sliding groove (221), the cylinder rod of the first cylinder (21) is provided with a clamping block (222) which is in sliding connection with the inner wall of the horizontal sliding groove (221), and the positioning platform (22) is provided with a connecting bolt for connecting with the first cylinder (21).

7. The hole depth detection device of claim 1, wherein: The rack (1) is provided with a fourth support (5), the fourth support (5) is provided with a vertical second cylinder (51), the cylinder rod of the second cylinder (51) is provided with a pressing block (511), and the pressing block (511) is located directly above the positioning block (23).

8. The hole depth detection device of claim 1, wherein: The probe (32) is detachably connected with the driving device (31).

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