Inner diameter detection equipment for hydraulic parts

Abstract

The hydraulic part inner diameter detection device comprises a rack, and a working frame, the end face of which is provided with a circular hole; the bearing jig is connected to the working frame and used for bearing the workpiece, and a through hole corresponding to the round hole is also formed in the bearing jig; the positioning mechanism is used for fixing the workpiece on the bearing jig; the calibration piece, the round hole and the through hole are concentrically arranged, and the calibration piece is used for correcting the position of the inner hole measuring head; and the detection mechanism comprises a telescopic inner hole measuring head which can sequentially penetrate through the ring gauge and the circular hole, extends into the workpiece and is used for measuring the inner diameter of the workpiece. The device is compact and reasonable in structure and convenient to operate, accurate, lossless and efficient measurement of the inner diameter of a non-standard part is achieved through accurate calibration, positioning and a flexible measurement mechanism, the measurement precision and efficiency are remarkably improved, the operation difficulty and the part damage risk are reduced, and powerful support is provided for quality control in industrial production.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to equipment for detecting the inner diameter of hydraulic components. Background Art

[0002] In the industrial production process, accurate measurement of the inner diameter of non-standard parts is an important link. These non-standard parts have different shapes, but they are all equipped with an annular inner cavity. The inner diameter of this inner cavity needs to be measured. How to accurately measure this is related to the quality and performance of the parts, as well as the accuracy and reliability of subsequent assembly. However, due to the different shapes and sizes of the inner diameters of non-standard parts, traditional measurement methods and tools often cannot meet the needs of accurate measurement.

[0003] Traditional methods of measuring inner diameters mainly involve contact measurement using tools such as calipers and internal micrometers. Although these tools are easy to operate, their accuracy and reliability are seriously affected when facing non-standard parts with complex shapes or small internal diameters. For example, calipers may cause measurement errors due to irregularities in the contact surface, and internal micrometers may not be able to reach the expected measurement position due to limited operating space.

[0004] In addition, the traditional method has some inherent limitations. For example, how to ensure that the measuring head can extend to the center of the part to improve the measurement accuracy, and contact measurement may cause damage to the surface of the part, especially in the measurement process of high-precision or fragile parts, such damage may be unacceptable. At the same time, the measurement efficiency of the traditional method is relatively low, which cannot meet the needs of fast and efficient measurement in large-scale production.

[0005] For this purpose, we propose an inner diameter detection device for hydraulic components. Utility Model Content

[0006] In view of the shortcomings of the above-mentioned existing production technology, the applicant provides an inner diameter detection device for hydraulic parts, so as to accurately, non-destructively and efficiently measure the inner diameter of non-standard parts.

[0007] The technical solution adopted by the utility model is as follows:

[0008] The invention comprises a rack and the following components arranged on the rack:

[0009] A work frame is fixed on the table of the frame, and a round hole is opened on the end surface of the work frame;

[0010] A supporting jig is connected to the workbench and used to support the workpiece. The supporting jig is also provided with a through hole corresponding to the circular hole.

[0011] A positioning mechanism, which is used to fix the workpiece on the supporting fixture;

[0012] The calibration piece is located directly below the workbench and is concentrically arranged with the circular hole and the through hole, and is used to correct the position of the inner hole measuring head;

[0013] It also includes a detection mechanism, which includes a retractable inner hole measuring head, which can pass through the ring gauge and the circular hole in sequence and extend into the workpiece, and is used to measure the inner diameter of the workpiece.

[0014] It is further characterized by:

[0015] The positioning mechanism comprises:

[0016] Limiting rings, two of which are connected to the supporting fixture and contact the outer wall of the workpiece;

[0017] The clamping cylinder is located on the mid-vertical line of the two limiting rings and positions the workpiece by telescoping.

[0018] The calibration piece moves horizontally on the table, and its structure includes a mounting seat and a ring gauge. The ring gauge is detachably mounted in the mounting seat and is used for calibrating the centering of the inner hole measuring head.

[0019] The workbench is also provided with a clamping piece for positioning the calibration piece, and the clamping piece can be rotated. When the calibration piece is moved into the workbench, the calibration piece is positioned by rotating the clamping piece.

[0020] The calibration piece also includes a slide rail, and the mounting seat is slidably connected to the slide rail. A photoelectric sensor 2 for positioning the mounting seat is also arranged on the table to ensure that the calibration piece can be moved to a position concentric with the circular hole.

[0021] The limiting ring is installed on the supporting fixture and contacts the outer wall of the workpiece. The distance between the two limiting rings is smaller than the diameter of the workpiece and is used to limit the movement of the workpiece in the horizontal direction to ensure the stability of the workpiece.

[0022] The clamping cylinder is installed on the mid-vertical line of the two limiting rings, and clamps and positions the workpiece through telescopic movement to ensure that the inner ring of the workpiece remains concentric with the circular hole on the workbench.

[0023] The detection mechanism also includes:

[0024] Sliding stand;

[0025] A slide seat is driven by a servo module and is slidably connected to the slide stand in a vertical direction;

[0026] A telescopic cylinder, which is fixed on the slide and can achieve vertical telescopic movement;

[0027] A floating flexible mechanism, which is fixed to the driving shaft of the telescopic cylinder and can float in the horizontal direction;

[0028] The inner hole measuring head is connected to the upper end of the floating flexible mechanism through a connecting rod, and is provided with measuring heads distributed in an annular shape at equal intervals, so as to measure the inner diameter of the annular shape.

[0029] The upper end surface of the supporting fixture is provided with a plurality of slide grooves which are consistent with the extension and contraction direction of the clamping cylinder, and has a better guiding effect.

[0030] It also includes two photoelectric sensors 1, which are arranged opposite to each other, and the two photoelectric sensors 1 are located on both sides of the diameter of the workpiece to monitor the position of the workpiece.

[0031] The beneficial effects of the utility model are as follows:

[0032] The utility model has a compact and reasonable structure and is easy to operate. Through precise calibration, positioning and flexible measuring mechanism, it can realize accurate, non-destructive and efficient measurement of the inner diameter of non-standard parts, significantly improves the measurement accuracy and efficiency, reduces the operating difficulty and the risk of parts damage, and provides strong support for quality control in industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0034] Figure 2 It is the front view of the utility model.

[0035] Figure 3 It is a cross-sectional view of the utility model.

[0036] in:

[0037] 100, rack; 200, work stand; 300, workpiece; 400, clamping cylinder; 500, calibration piece; 600, detection mechanism;

[0038] 101. Countertop;

[0039] 201. Supporting fixture; 202. Limiting ring; 203. Photoelectric sensor 1;

[0040] 401, baffle;

[0041] 501, slide rail; 502, mounting seat; 503, ring gauge; 504, photoelectric sensor 2;

[0042] 601. Sliding stand; 602. Servo module; 603. Lifting cylinder; 604. Flexible floating mechanism; 605. Connecting rod; 606. Inner hole measuring head. DETAILED DESCRIPTION

[0043] The specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0044] like Figure 1-Figure 3 As shown, the utility model relates to a detection device for the inner diameter of hydraulic parts, especially for high-precision measurement of the inner diameter of a workpiece 300. The device has a sophisticated structure and is easy to operate, and can realize fast and accurate measurement of the inner diameters of workpieces of different specifications, greatly improving production efficiency and product quality.

[0045] The inner diameter detection device mainly includes core components such as a frame 100, a work frame 200, a workpiece 300, a clamping cylinder 400, a calibration piece 500 and a detection mechanism 600. The frame 100 serves as the support base of the entire device, and its table 101 is flat and stable for carrying other components.

[0046] The workbench 200 is fixed on the table 101 of the frame 100, and a circular hole is provided on the end surface thereof for positioning during calibration and measurement. The workpiece 300 is a component whose inner diameter is to be measured, and is placed on the workbench 200 for measurement.

[0047] The clamping cylinder 400 is located on one side of the work frame 200, and positions the workpiece 300 through telescopic action to ensure that the inner ring of the workpiece 300 is concentrically arranged with the circular hole of the work frame 200. The output end of the clamping cylinder 400 is connected with a baffle 401, which corresponds to the shape of the workpiece 300 to increase the contact area and driving effect.

[0048] The calibration member 500 is located directly below the workbench 200 and can move horizontally on the table 101. The calibration member 500 includes a mounting seat 502 and a ring gauge 503 detachably disposed in the mounting seat 502. The ring gauge 503 is used for calibration and centering, and its detachable design facilitates replacement of the ring gauge 503 according to different workpieces, thereby increasing the application range of the device.

[0049] The detection mechanism 600 is the core measuring part of the device, and includes a retractable inner hole measuring head 606. The inner hole measuring head 606 can sequentially pass through the ring gauge 503 and the circular hole and extend into the workpiece 300 to measure the inner diameter of the workpiece 300.

[0050] Specifically, the work stand 200 is firmly fixed on the table 101 of the frame 100 by bolts or other fasteners. The diameter of the circular hole opened on the end surface of the work stand 200 is slightly larger than the inner diameter of the workpiece 300, so as to facilitate calibration and measurement.

[0051] The support fixture 201 is connected to the work frame 200 and is used to support the workpiece 300. The upper end surface of the support fixture 201 is provided with a plurality of slide grooves that are consistent with the extension direction of the clamping cylinder 400. These slide grooves have a better guiding effect, ensuring that the workpiece 300 can move smoothly and accurately during the clamping process.

[0052] Two photoelectric sensors 1 203 are arranged on the workbench 200, which are arranged opposite to each other and located on both sides of the diameter of the workpiece 300. The photoelectric sensor 1 203 is used to monitor the position of the workpiece 300 to ensure that the workpiece 300 is in the correct position during the measurement process.

[0053] There are two stop rings 202, which are connected to the support fixture 201 and contact the outer wall of the workpiece 300. The two stop rings 202 are not in the diameter direction of the workpiece 300, that is, the distance between the two stop rings 202 is smaller than the diameter of the workpiece 300. Such a design can ensure that the workpiece 300 will not rotate or deviate during the clamping process.

[0054] The clamping cylinder 400 is located on the mid-vertical line of the two limit rings 202, and positions the workpiece 300 through telescopic action. When the clamping cylinder 400 is extended, the baffle 401 at its output end contacts the workpiece 300 and pushes the workpiece 300 to move inward until the inner ring of the workpiece 300 is concentrically arranged with the circular hole of the workbench 200. The shape of the baffle 401 corresponds to the outer shape of the workpiece 300 to increase the contact area and driving effect.

[0055] The calibration piece 500 is located directly below the workbench 200 and can move horizontally on the table 101. The calibration piece 500 includes a mounting seat 502 and a ring gauge 503 detachably disposed in the mounting seat 502. The ring gauge 503 is used for calibration and centering to ensure the accuracy of the measurement result. Since the ring gauge 503 can be disassembled and replaced, the device can adapt to the measurement of workpieces of different specifications.

[0056] The slide rail 501 is mounted on the table 101, and the mounting seat 502 is slidably connected to the slide rail 501. The position of the calibration piece 500 can be adjusted by moving the mounting seat 502. A second photoelectric sensor 504 is also provided on the table 101 to locate the position of the mounting seat 502. When the calibration piece 500 moves to a position concentric with the circular hole, the second photoelectric sensor 504 will send a signal for confirmation.

[0057] The detection mechanism 600 is the core measurement part of the equipment, including a sliding frame 601, a slide seat, a telescopic cylinder 603, a floating flexible mechanism 604, and an inner hole measuring head 606. The sliding frame 601 is fixed on the frame 100 to provide stable support for the detection mechanism 600. The slide seat is driven by a servo module 602 and is connected to the sliding frame 601 in a vertical direction. This design enables the detection mechanism 600 to move accurately in the vertical direction.

[0058] The telescopic cylinder 603 is fixed on the slide and can be telescoped in the vertical direction. A floating flexible mechanism 604 is fixed on the driving shaft of the telescopic cylinder 603. The floating flexible mechanism 604 can float in the horizontal direction to ensure that the inner hole measuring head 606 can be smoothly extended into the ring gauge 503, reducing the risk of collision damage.

[0059] The inner hole measuring head 606 is connected to the upper end of the floating flexible mechanism 604 through the connecting rod 605. The inner hole measuring head 606 is provided with measuring heads distributed in an annular pattern at equal intervals, which can accurately measure the inner diameter of the annular pattern. When the inner hole measuring head 606 is extended into the workpiece 300, the measuring head will contact the inner wall of the workpiece 300 and record the inner diameter data.

[0060] The specific working principle is as follows:

[0061] S1. Place the workpiece 300 on the supporting fixture 201 and adjust its position so that the photoelectric sensor 203 can detect the existence of the workpiece 300.

[0062] S2, start the clamping cylinder 400 to extend and push the workpiece 300 inward until the inner ring of the workpiece 300 is concentric with the circular hole of the workbench 200.

[0063] S3. Move the calibration piece 500 to the bottom of the workbench 200 and use the ring gauge 503 to calibrate and center the measuring head.

[0064] S4, start the detection mechanism 600, so that the inner hole measuring head 606 passes through the ring gauge 503 and the circular hole in sequence and extends into the workpiece 300 to measure the inner diameter.

[0065] S5. Record and analyze the measurement data to determine whether the inner diameter of the workpiece 300 meets the requirements.

[0066] In this embodiment, the following beneficial effects are achieved:

[0067] 1. High-precision measurement: Using advanced inner diameter measurement technology, combined with precise calibration parts and detection mechanisms, to ensure the accuracy and reliability of the measurement results.

[0068] 2. Wide applicability: The detachable and replaceable design of the ring gauge 503 enables the equipment to adapt to the measurement of workpieces of different specifications, thus improving the scope of application and flexibility of the equipment.

[0069] 3. Efficient automation: The entire measurement process is automated, greatly improving production efficiency and ease of operation.

[0070] 4. Protect the workpiece: The design of the inner hole measuring head connected by a floating flexible mechanism and a connecting rod effectively reduces the risk of collision damage to the workpiece.

[0071] In summary, the utility model provides a detection device for the inner diameter of hydraulic parts and its specific implementation method. The device has the advantages of high precision, wide applicability, high efficiency and automation, and protection of workpieces, which provides a strong guarantee for the accurate measurement of the inner diameter of hydraulic parts.

[0072] The above description is an explanation of the utility model, not a limitation of the utility model. The scope of the utility model is defined by the claims. Any form of modification can be made within the protection scope of the utility model.

Claims

1. Used for the inner diameter detection equipment of hydraulic parts, characterized by: It comprises a frame (100) and the following components arranged on the frame (100): A working frame (200) is fixed on the tabletop (101) of the frame (100), and a circular hole is opened on the end surface of the working frame (200); A supporting fixture (201) is connected to the work frame (200) and is used to support the workpiece (300). The supporting fixture (201) is also provided with a through hole corresponding to the circular hole; A positioning mechanism, used for fixing the workpiece (300) on the supporting fixture (201); A calibration piece (500) is located directly below the work frame (200) and is arranged concentrically with the circular hole and the through hole, and is used to correct the position of the inner hole measuring head (606); It also includes a detection mechanism (600), which includes a retractable inner hole measuring head (606) that can sequentially pass through the ring gauge (503) and the circular hole and extend into the workpiece (300), and is used to measure the inner diameter of the workpiece (300).

2. The inner diameter detection device for hydraulic parts according to claim 1 is characterized in that: The positioning mechanism comprises: two limiting rings (202) connected to the supporting fixture (201) and in contact with the outer wall of the workpiece (300); The clamping cylinder (400) is located on the mid-vertical line of the two limiting rings (200) and positions the workpiece (300) by telescoping.

3. The inner diameter detection device for hydraulic parts according to claim 1 is characterized in that: The calibration piece (500) moves horizontally on the table (101), and its structure includes a mounting seat (502) and a ring gauge (503). The ring gauge (503) is detachably mounted in the mounting seat (502) and is used for calibrating the centering of the inner hole measuring head (606).

4. The inner diameter detection device for hydraulic parts according to claim 1 is characterized in that: The working frame (200) is also provided with a clamping piece for positioning the calibration piece (500); the clamping piece can rotate; when the calibration piece (500) is moved into the working frame (200), the calibration piece (500) is positioned by rotating the clamping piece.

5. The inner diameter detection device for hydraulic parts according to claim 1 is characterized in that: The calibration piece (500) further comprises a slide rail (501), a mounting seat (502) being slidably connected to the slide rail (501), and a second photoelectric sensor (504) for positioning the mounting seat (502) is also arranged on the table top (101), thereby ensuring that the calibration piece (500) can be moved to a position concentric with the circular hole.

6. The inner diameter detection device for hydraulic parts according to claim 2 is characterized in that: The limiting ring (202) is mounted on the supporting fixture (201) and is in contact with the outer wall of the workpiece (300). The distance between the two limiting rings (202) is smaller than the diameter of the workpiece (300) and is used to limit the movement of the workpiece (300) in the horizontal direction, thereby ensuring the stability of the workpiece (300).

7. The inner diameter detection device for hydraulic parts according to claim 6 is characterized in that: The clamping cylinder (400) is installed on the mid-vertical line of the two limiting rings (202) and clamps and positions the workpiece (300) through telescopic movement to ensure that the inner ring of the workpiece (300) remains concentric with the circular hole on the working frame (200).

8. The inner diameter detection device for hydraulic parts according to claim 1 is characterized in that: The detection mechanism (600) further includes: Sliding stand (601); A slide seat, which is driven by a servo module (602) and connected to the slide stand (601) by sliding in a vertical direction; A telescopic cylinder (603) is fixed on the slide and can achieve telescopic movement in the vertical direction; A floating flexible mechanism (604) is fixed on the driving shaft of the telescopic cylinder (603) and is capable of floating in the horizontal direction; The inner hole measuring head (606) is connected to the upper end of the floating flexible mechanism (604) through a connecting rod (605), and is provided with measuring heads distributed in an annular shape at equal intervals, so as to measure the inner diameter of the annular shape.

9. The inner diameter detection device for hydraulic parts according to claim 1, characterized in that: The upper end surface of the supporting fixture (201) is provided with a plurality of slide grooves which are consistent with the extension and contraction direction of the clamping cylinder (400), thereby achieving a better guiding effect.

10. The inner diameter detection device for hydraulic parts according to claim 1, characterized in that: It also includes two photoelectric sensors (203), which are arranged opposite to each other. The two photoelectric sensors (203) are located on both sides of the diameter of the workpiece (300) and are used to monitor the position of the workpiece (300).

Images