Measuring device for bearing seat processing

Abstract

The invention discloses a measuring device for bearing seat processing, and belongs to the technical field of bearing seat measurement, the measuring device comprises a base and a support column fixed on the base, one end of the support column is fixedly provided with a vertical plate, and the vertical plate is provided with a liftable measuring assembly; the measuring assembly comprises a cylinder, the side wall of the cylinder is connected with an air inlet pipe, the air inlet pipe is connected with an external air source, the bottom of the cylinder is rotatably provided with a rotating pipe, the bottom of the rotating pipe is fixedly provided with a mounting block, the two side walls of the mounting block are both fixedly provided with sliding rods, the two sliding rods are both slidably connected with sliding blocks, and the sliding blocks are fixedly connected with the rotating pipe. A measuring rod is fixed at the bottom of the sliding block; impurities in a bearing seat hole can be accurately identified, the pneumatic control ensures that the measuring rod stably contacts the hole wall, the marking pen marks visually reflect the hole diameter and the cleanliness, the automatic operation improves the efficiency, the measurement and detection functions are integrated, the reset is reliable, and the accuracy and the stability of continuous measurement are ensured.

Description

Technical Field

[0001] This invention relates to the field of bearing housing measurement technology, and more specifically to a measuring device for bearing housing machining. Background Technology

[0002] In the field of mechanical manufacturing, the bearing housing is the core component that supports the bearing. The accuracy of its bore diameter directly determines the bearing assembly accuracy, operational stability and overall equipment performance. Therefore, bore diameter measurement is a key quality inspection step after the bearing housing is machined.

[0003] Currently, during the machining process of bearing housings (such as turning, boring, etc.), small amounts of metal shavings, oil, dust, and cutting fluid residue are easily left inside the holes. The presence of these impurities can cause a series of measurement problems: on the one hand, impurities occupy the effective space inside the hole, preventing traditional measuring tools such as dial indicators and inside gauges from directly contacting the true surface of the hole wall, resulting in deviations in the measurement reference; on the other hand, residual impurities can easily adhere to the hole wall, forming local protrusions, or uneven distribution of impurities can cause irregular cross-sectional shapes such as elliptical deformation of the originally regular circular hole diameter, resulting in significant differences in the values ​​obtained by the measuring tools at different measurement positions, thereby greatly increasing the measurement error of the hole diameter. Summary of the Invention

[0004] The purpose of this invention is to provide a measuring device for machining bearing housings, which solves the following technical problem: impurities inside the hole occupy the space inside the hole, causing the measuring tool to be unable to accurately contact the true position of the hole wall, resulting in inconsistent values ​​measured by the measuring tool at different positions, and increasing measurement error.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A measuring device for machining bearing housings includes a base and a support column fixed on the base. One end of the support column is fixed with a vertical plate, and a liftable measuring component is provided on the vertical plate.

[0007] The measuring assembly includes a cylinder with an air inlet pipe connected to its side wall and connected to an external air source. A rotating tube is rotatably mounted on the bottom of the cylinder, and a mounting block is fixed to the bottom of the rotating tube. Sliding rods are fixed on both side walls of the mounting block, and sliders are slidably connected to both sliding rods. A measuring rod is fixed to the bottom of each slider, and a limit block is fixed to the opposite end of each sliding rod. A first spring is fitted onto each sliding rod and is located between the limit block and the slider.

[0008] Both sides of the bottom of the rotating tube are connected to a first pneumatic rod, and the top of the two sliders are fixed with an indicator rod. The first pneumatic rod is connected to the indicator rod, and a second pneumatic rod is fixed on each of the two indicator rods. A hose is connected between the first pneumatic rod and the second pneumatic rod on the same side, and a marker pen is installed at one end of the second pneumatic rod.

[0009] The top of the rotating tube is equipped with multiple force-bearing plates, the top of the cylinder is connected to an exhaust pipe, and an adjustment assembly is provided between the rotating tube and the exhaust pipe.

[0010] The rotating tube is also equipped with a recording component.

[0011] As a further aspect of the present invention: the first pneumatic rod and the second pneumatic rod each include a sleeve. The sleeve of the first pneumatic rod is connected to a rotating tube, and the sleeve of the second pneumatic rod is fixed to an indicator rod. A piston is provided inside the sleeve, and a piston rod is fixed to one end of the piston. The piston rod of the first pneumatic rod is fixedly connected to the indicator rod, and the piston rod of the second pneumatic rod is fixedly connected to a marker pen. A second spring is connected between the piston inside the second pneumatic rod and the sleeve. A pressure relief pipe is also connected to the sleeve of the second pneumatic rod, and a pressure relief valve is installed on the pressure relief pipe.

[0012] As a further aspect of the present invention: one end of the hose is connected to the side wall of the sleeve of the first pneumatic rod, and the other end is connected to the end of the second pneumatic rod.

[0013] As a further aspect of the present invention: the adjusting assembly includes a first sealing ring fixed inside the rotating tube and a second sealing ring fixed inside the exhaust pipe. A movable rod is provided between the first sealing ring and the second sealing ring. A first sealing ball is fixed at one end of the movable rod, and a second sealing ball is fixed at the other end. The first sealing ball is located below the first sealing ring, and the second sealing ball is located above the second sealing ring.

[0014] As a further aspect of the present invention: a circular block is fixed on the movable rod, and a third spring is connected between the circular block and the second sealing ring.

[0015] As a further aspect of the present invention: an adsorption element is fixed to the top of the second sealing ball, a magnetic element is fixed to the top of the cylinder by an L-shaped rod, a horizontal plate is fixed to the bottom of the vertical plate, two lifting rods are movably arranged on the horizontal plate, two cylinders are installed on the side wall of the vertical plate, one end of the two lifting rods is connected to the output shaft of the two cylinders respectively, and the other end is fixed to the cylinder, and two push rods are fixed to the lower surface of the horizontal plate.

[0016] As a further embodiment of the present invention: the recording component includes two support blocks, a rotating shaft is rotatably mounted between the two support blocks, a fixed shaft is fixed between the two support blocks, a support ring is fixed on the fixed shaft, the support ring is fixedly connected to the rotating tube, and two rolls of paper are fitted on the fixed shaft.

[0017] The beneficial effects of this invention are:

[0018] (1) This invention achieves accurate judgment of impurities in the hole by using the marking pattern of the marker pen during the rotation of the measuring rod. When there are no impurities in the hole, the measuring rod is in stable contact with the hole wall, and the marker pen leaves a dot mark. When there are impurities in the hole, the measuring rod jumps, and the marker pen forms a line segment mark, which can intuitively locate the presence of impurities. This design solves the core problem of impurities obscuring the real hole wall and causing measurement benchmark deviation in traditional measurement from the source, and provides a clear basis for subsequent impurity cleaning and accurate measurement.

[0019] (2) The present invention realizes the step-by-step action of the measuring rod through pneumatic control. In the initial stage, the marker pen is in a retracted state to avoid marking errors caused by premature extension. The marker pen only starts marking after the measuring rod stably contacts the hole wall, ensuring that the marking and measurement are synchronized. Furthermore, after the air pressure increases, the first sealing ball automatically seals the first pneumatic rod, keeping the position of the measuring rod fixed. At the same time, the measuring rod rotates at least one revolution with the rotating tube to realize full circumferential measurement of the hole diameter, effectively avoiding the problem of inconsistent values ​​caused by local position deviation in traditional measurement, and greatly improving the accuracy of the measurement data.

[0020] (3) This invention integrates aperture size measurement and impurity detection into one unit, eliminating the need for additional impurity detection equipment. The cleanliness of the hole can be determined simultaneously with aperture size measurement, reducing the detection steps and equipment investment. In addition, the aperture size can be directly obtained by marking the distance between two points with a marker pen. The measurement results are intuitive and easy to understand, eliminating the need for complex data processing and improving the practicality and economy of the device in actual production. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the measuring component of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the cylinder of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the adjustment component of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the first and second pneumatic rods of the present invention;

[0027] Figure 6 yes Figure 1 Enlarged view of point A in the middle;

[0028] Figure 7 This is a schematic diagram of the structure of the recording component of the present invention.

[0029] In the diagram: 1. Base; 2. Support column; 3. Vertical plate; 4. Cylinder; 5. Horizontal plate; 6. Lifting rod; 7. Measuring assembly; 701. Cylinder; 702. Air inlet pipe; 703. Rotating pipe; 704. Force plate; 705. Mounting block; 706. Sliding rod; 707. Sliding block; 708. Measuring rod; 709. First spring; 710. First pneumatic rod; 711. Indicating rod; 712. Second pneumatic rod; 713. Hose; 714. Marker pen; 715. Sleeve; 716. Piston; 717, Piston rod; 718, Pressure relief pipe; 719, Second spring; 720, Exhaust pipe; 721, First sealing ring; 722, Second sealing ring; 723, Movable rod; 724, First sealing ball; 725, Second sealing ball; 726, Round block; 727, Third spring; 728, Adsorption element; 729, L-shaped rod; 730, Magnetic element; 8, Push rod; 9, Recording assembly; 901, Support block; 902, Fixed shaft; 903, Rotating shaft; 904, Support ring.

[0030] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the invention. To better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual size and shape of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1 to 5As shown, this invention is a measuring device for machining bearing housings, including a base 1 and a support column 2 fixed on the base 1. A vertical plate 3 is fixed to one end of the support column 2, and a liftable measuring component 7 is provided on the vertical plate 3. The measuring component 7 includes a cylinder 701, an air inlet pipe 702 connected to the side wall of the cylinder 701, the air inlet pipe 702 being connected to an external air source, a rotating pipe 703 rotatably mounted at the bottom of the cylinder 701, a mounting block 705 fixed at the bottom of the rotating pipe 703, slide rods 706 fixed on both side walls of the mounting block 705, sliders 707 slidably connected to both slide rods 706, a measuring rod 708 fixed to the bottom of the slider 707, and a limit block fixed to the opposite end of each of the two slide rods 706. A measuring rod 708 is fitted onto the slide rod 706. A spring 709 is provided, and the first spring 709 is located between the limiting block and the slider 707; a first pneumatic rod 710 is connected to both sides of the bottom of the rotating tube 703; an indicator rod 711 is fixed to the top of each of the two sliders 707; the first pneumatic rod 710 is connected to the indicator rod 711; a second pneumatic rod 712 is fixed to each of the two indicator rods 711; a hose 713 is connected between the first pneumatic rod 710 and the second pneumatic rod 712 on the same side; a marker pen 714 is installed at one end of the second pneumatic rod 712; multiple force plates 704 are installed on the top of the rotating tube 703; an exhaust pipe 720 is connected to the top of the cylinder 701; an adjustment assembly is provided between the rotating tube 703 and the exhaust pipe 720; a recording assembly 9 is also provided on the rotating tube 703.

[0033] The bearing housing to be tested is placed below the measuring assembly 7. The measuring assembly 7 descends, and the two measuring rods 708 enter the holes of the bearing housing. Air is supplied by an external air source, and air enters the cylinder 701 through the air inlet pipe 702. The air first enters the first pneumatic rod 710 through the rotating pipe 703. The first pneumatic rod 710 pushes the indicator rod 711 to move, thereby moving the slider 707 and the measuring rod 708. After the measuring rod 708 contacts the hole wall, it cannot move further, and some air enters the second pneumatic rod 712, which then pushes the marker pen 714 to move. The marker pen 714 leaves a mark on the recording assembly 9. As the air pressure increases, it will cause the adjustment group to... When the device is in operation, air is discharged through the exhaust pipe 720. At this time, due to the pressure relief, the external air source continues to supply air, which will push the force plate 704 and the rotating tube 703 to rotate, thereby causing the measuring rod 708 to rotate inside the hole. The measuring rod 708 completes the measurement after rotating at least one revolution, and the air supply stops. By observing the two marked positions, if there are no impurities in the hole, the measuring rod 708 will not jump, and the mark will be a dot. The distance between the two points is the size of the hole diameter. If there are impurities in the hole, the measuring rod 708 will jump during the rotation, making the mark a line segment. This indicates that there are impurities in the hole. At the same time, the farthest distance between the two marks is the size of the hole diameter.

[0034] See Figure 2 , Figure 4 and Figure 5 The first pneumatic rod 710 and the second pneumatic rod 712 each include a sleeve 715. The sleeve 715 of the first pneumatic rod 710 is connected to the rotating tube 703. The sleeve 715 of the second pneumatic rod 712 is fixed to the indicator rod 711. A piston 716 is disposed inside the sleeve 715. A piston rod 717 is fixed to one end of the piston 716. The piston rod 717 of the first pneumatic rod 710 is fixedly connected to the indicator rod 711. The piston rod 717 of the second pneumatic rod 712 is fixedly connected to the marker pen 714. A second spring 719 is connected between the piston 716 inside the second pneumatic rod 712 and the sleeve 715. A pressure relief pipe 718 is also connected to the sleeve 715 of the second pneumatic rod 712. A pressure relief valve is installed on the pressure relief pipe 718. One end of the hose 713 is connected to the side wall of the sleeve 715 of the first pneumatic rod 710, and the other end is connected to the end of the second pneumatic rod 712. Air enters the sleeve 715 of the first pneumatic rod 710 through the rotating tube 703, pushing the piston 716 to move. In the initial state, the piston 716 blocks the connection between the hose 713 and the sleeve 715, preventing air from entering the second pneumatic rod 712 and avoiding premature extension of the marker pen 714. Subsequently, air enters the second pneumatic rod 712 and pushes the marker pen 714 to move. After the measurement is completed, the air in the second pneumatic rod 712 is automatically discharged through the pressure relief tube 718, and the marker pen 714 is reset under the action of the second spring 719, facilitating the next test.

[0035] See Figure 2 , Figure 3 and Figure 4 The adjusting assembly includes a first sealing ring 721 fixed inside the rotating tube 703 and a second sealing ring 722 fixed inside the exhaust pipe 720. A movable rod 723 is provided between the first sealing ring 721 and the second sealing ring 722. A first sealing ball 724 is fixed to one end of the movable rod 723, and a second sealing ball 725 is fixed to the other end. The first sealing ball 724 is located below the first sealing ring 721, and the second sealing ball 725 is located above the second sealing ring 722. A round block 726 is fixed on the movable rod 723, and a third spring 727 connects the round block 726 and the second sealing ring 722. This is to facilitate the rotation of the rotating tube 703 and measurement... For accuracy, initially, under the action of gravity and the third spring 727, the second sealing ball 725 contacts the second sealing ring 722, preventing air from escaping through the exhaust pipe 720. When the first pneumatic rod 710 and the second pneumatic rod 712 reach their travel limits, the air pressure inside the cylinder 701 gradually increases, pushing the second sealing ball 725 upward, allowing air to escape through the exhaust pipe 720. Simultaneously, the first sealing ball 724 contacts the first sealing ring 721, preventing gas from escaping from the first pneumatic rod 710, thus ensuring the consistency of the measuring rod 708's position. The third spring 727 is used to increase resistance and prevent the second sealing ball 725 from being lifted up during the initial measurement stage.

[0036] See Figure 1 , Figure 4 and Figure 6 The top of the second sealing ball 725 is fixed with an adsorption component 728, the top of the cylinder 701 is fixed with a magnetic component 730 via an L-shaped rod 729, the bottom of the vertical plate 3 is fixed with a horizontal plate 5, two lifting rods 6 are movably mounted on the horizontal plate 5, two cylinders 4 are mounted on the side wall of the vertical plate 3, one end of each of the two lifting rods 6 is connected to the output shaft of the two cylinders 4 respectively, and the other end is fixed to the cylinder 701. Two push rods 8 are fixed on the lower surface of the horizontal plate 5. To ensure a smooth exhaust process, the second sealing ball 725... After being raised, the adsorption element 728 contacts the magnetic element 730, thus preventing the second sealing ball 725 from descending during the exhaust process. To facilitate subsequent measurements, after one bearing seat measurement is completed, the cylinder 4 drives the measuring assembly 7 to rise and reset. The adsorption element 728 then contacts the push rod 8, separating it from the magnetic element 730. The second sealing ball 725 then descends and resets, facilitating subsequent measurements. It is worth noting that the adsorption element 728 is made of iron, and the magnetic element 730 is a magnet.

[0037] See Figure 1 , Figure 2 , Figure 5 and Figure 7 The recording component 9 includes two support blocks 901, a rotating shaft 903 rotatably mounted between the two support blocks 901, and a fixed shaft 902 fixed between the two support blocks 901. A support ring 904 is fixed on the fixed shaft 902 and is fixedly connected to the rotating tube 703. Two rolls of paper are mounted on the fixed shaft 902. The rolls of paper are rotatably mounted on the fixed shaft 902, and one end of the rolls of paper is attached to the rotating shaft 903. In the initial state, the marker pen 714 is far from one end of the roll of paper. As the measurement proceeds, the marker pen 714 leaves marks on the roll of paper. If continuous measurement is required, the rotating shaft 903 can be rotated by a motor according to the measurement frequency, thereby pulling the roll of paper and causing the marker pen 714 to leave multiple marks on the roll of paper. After the measurement is completed, the marks can be compared according to the measurement sequence of the bearing seat.

[0038] The working principle of this invention is as follows: The bearing housing to be tested is placed below the measuring component 7. The measuring component 7 descends, and the two measuring rods 708 enter the holes of the bearing housing. Air is supplied by an external air source (not shown). Air enters the cylinder 701 through the air inlet pipe 702. Since the cylinder 701 is in a relatively sealed state in the initial state, the force plate 704 will not rotate. The air first enters the first pneumatic rod 710 through the rotating pipe 703, pushing the piston 716 to move. In the initial state, the piston 716 blocks the connection between the hose 713 and the sleeve 715, preventing air from entering the second pneumatic rod 712. This prevents the marker 714 from extending prematurely. After the piston 716 and piston rod 717 are pushed, the indicator rod 711 can be moved, thereby moving the slider 707 and measuring rod 708. The measuring rod 708 cannot move after contacting the hole wall, while the piston 716 has moved away from the initial position. Some air enters the second pneumatic rod 712 through the hose 713, which then pushes the marker 714 to move. The marker 714 leaves a mark on the roll of paper of the recording component 9. It should be noted that when placing the bearing seat, the part of the measuring rod 708 that contacts the inner wall of the hole must be free of impurities to avoid affecting the measurement accuracy.

[0039] As the air pressure increases, it pushes the second sealing ball 725 upward, causing the adsorption element 728 to contact the magnetic element 730. The position of the second sealing ball 725 is fixed, and it disengages from the second sealing ring 722. Air can then be discharged through the exhaust pipe 720. Simultaneously, the first sealing ball 724 contacts the first sealing ring 721, preventing the gas inside the first pneumatic rod 710 from escaping, and also preventing newly entering air from entering the first pneumatic rod 710. The length of the first pneumatic rod 710 is fixed to ensure the consistency of the position of the measuring rod 708. An external air source continuously supplies air, and the air flows through the inlet pipe 702 into the cylinder 701, contacts the force plate 704, and then exits through the exhaust pipe 720. When air is discharged and comes into contact with the force plate 704, the force plate 704 is pushed under the action of air pressure, thereby causing the rotating tube 703 to rotate. Under the combined action of multiple force plates 704, a "fan-like" rotation is formed, which causes the measuring rod 708 to rotate inside the hole. The measuring rod 708 completes the measurement after rotating at least one revolution and the air supply is stopped. By observing the two marked positions, if there are no impurities in the hole, the measuring rod 708 will not jump, and the mark will be a dot. The distance between the two points is the size of the hole. If there are impurities in the hole, the measuring rod 708 will jump during the rotation, making the mark a line segment. This indicates that there are impurities in the hole. At the same time, the farthest distance between the two marks is the size of the hole.

[0040] After the measurement is completed, the cylinder 4 drives the measuring component 7 to rise and reset. The adsorption component 728 will contact the push rod 8, and the adsorption component 728 will separate from the magnetic component 730. The second sealing ball 725 and the first sealing ball 724 will fall and reset. The gas in the first pneumatic rod 710 will be automatically discharged, driving the measuring rod 708 to reset. The gas in the second pneumatic rod 712 will be discharged through the pressure relief pipe 718. The marker pen 714 will reset, and the next measurement can be performed.

[0041] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A measuring device for machining bearing housings, comprising a base (1) and a support column (2) fixed on the base (1), characterized in that, One end of the support column (2) is fixed with a vertical plate (3), and a height-adjustable measuring component (7) is provided on the vertical plate (3). The measuring component (7) includes a cylinder (701), an air inlet pipe (702) connected to the side wall of the cylinder (701), the air inlet pipe (702) being connected to an external air source, a rotating pipe (703) rotatably mounted at the bottom of the cylinder (701), a mounting block (705) fixed at the bottom of the rotating pipe (703), slide rods (706) fixed on both side walls of the mounting block (705), sliders (707) slidably connected to both slide rods (706), a measuring rod (708) fixed at the bottom of the slider (707), a limit block fixed at the far end of both slide rods (706), a first spring (709) fitted on the slide rod (706), and the first spring (709) being located between the limit block and the slider (707); The bottom of the rotating tube (703) is connected to two sides of a first pneumatic rod (710), and the top of the two sliders (707) is fixed with an indicator rod (711). The first pneumatic rod (710) is connected to the indicator rod (711), and a second pneumatic rod (712) is fixed on each of the two indicator rods (711). A hose (713) is connected between the first pneumatic rod (710) and the second pneumatic rod (712) on the same side. A marker pen (714) is installed at one end of the second pneumatic rod (712). The top of the rotating tube (703) is equipped with multiple force-bearing plates (704), the top of the cylinder (701) is connected to an exhaust pipe (720), and an adjustment assembly is provided between the rotating tube (703) and the exhaust pipe (720). The rotating tube (703) is also provided with a recording component (9).

2. The measuring device for machining bearing housings according to claim 1, characterized in that, The first pneumatic rod (710) and the second pneumatic rod (712) each include a sleeve (715). The sleeve (715) of the first pneumatic rod (710) is connected to the rotating tube (703). The sleeve (715) of the second pneumatic rod (712) is fixed to the indicator rod (711). A piston (716) is provided inside the sleeve (715). A piston rod (717) is fixed to one end of the piston (716). The first pneumatic rod (710) The piston rod (717) of the second pneumatic rod (712) is fixedly connected to the indicator rod (711), the piston rod (717) of the second pneumatic rod (712) is fixedly connected to the marker pen (714), a second spring (719) is connected between the piston (716) inside the second pneumatic rod (712) and the sleeve (715), and a pressure relief pipe (718) is also connected to the sleeve (715) of the second pneumatic rod (712), and a pressure relief valve is installed on the pressure relief pipe (718).

3. The measuring device for machining bearing housings according to claim 2, characterized in that, One end of the hose (713) is connected to the side wall of the sleeve (715) of the first pneumatic rod (710), and the other end is connected to the end of the second pneumatic rod (712).

4. The measuring device for machining bearing housings according to claim 3, characterized in that, The adjustment assembly includes a first sealing ring (721) fixed inside the rotating tube (703) and a second sealing ring (722) fixed inside the exhaust pipe (720). A movable rod (723) is provided between the first sealing ring (721) and the second sealing ring (722). A first sealing ball (724) is fixed at one end of the movable rod (723), and a second sealing ball (725) is fixed at the other end. The first sealing ball (724) is located below the first sealing ring (721), and the second sealing ball (725) is located above the second sealing ring (722).

5. A measuring device for machining bearing housings according to claim 4, characterized in that, A circular block (726) is fixed on the movable rod (723), and a third spring (727) is connected between the circular block (726) and the second sealing ring (722).

6. The measuring device for machining bearing housings according to claim 4, characterized in that, The top of the second sealing ball (725) is fixed with an adsorption element (728), the top of the cylinder (701) is fixed with a magnetic element (730) by an L-shaped rod (729), the bottom of the vertical plate (3) is fixed with a horizontal plate (5), two lifting rods (6) are movably arranged on the horizontal plate (5), two cylinders (4) are installed on the side wall of the vertical plate (3), one end of the two lifting rods (6) is connected to the output shaft of the two cylinders (4) respectively, and the other end is fixed on the cylinder (701). Two push rods (8) are fixed on the lower surface of the horizontal plate (5).

7. A measuring device for machining bearing housings according to claim 1, characterized in that, The recording component (9) includes two support blocks (901), a rotating shaft (903) is rotatably mounted between the two support blocks (901), a fixed shaft (902) is fixed between the two support blocks (901), a support ring (904) is fixed on the fixed shaft (902), the support ring (904) is fixedly connected to the rotating tube (703), and two rolls of paper are fitted on the fixed shaft (902).

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