Bearing seat coaxiality detection device

Abstract

The invention relates to the technical field of bearing pedestal detection, and discloses a bearing pedestal coaxiality detection device which comprises a mounting assembly, the mounting assembly comprises a workbench, a to-be-detected bearing pedestal is mounted at the center of the top of the workbench, and testing assemblies are mounted on the left side and the right side of the surface of the workbench. The testing assembly comprises a linear motor fixed to the bottom of the workbench, a displacement block is fixed to the moving end of the linear motor, a screw rod is installed at the top of the displacement block in a penetrating mode, a vertical plate is arranged on the rear side of the displacement block, a small motor is installed on one side of the vertical plate, and a stud is movably installed on the top of the surface of the vertical plate. The stud is sleeved with a sliding block in a threaded mode. The position of the vertical plate can be flexibly adjusted, electronic distance detection is carried out through rotation of the distance measuring sensor, the device can adapt to different specifications of to-be-detected bearing seats, and convenient rotation can be carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of bearing housing detection, and particularly to a coaxiality detection device for bearing housings. Background Art

[0002] A bearing housing is a key component in a mechanical system for fixing and supporting bearings. Its function is to ensure the normal operation of the bearings in a predetermined position, bear loads and transmit them to the mechanical structure, while reducing friction, wear and noise. Coaxiality detection is a core link in the manufacturing and assembly of bearing housings. Its purpose is to ensure the smooth operation, precise fit and long-term reliability of rotating components by controlling the axis deviation.

[0003] After retrieval, a Chinese patent with the publication number CN214173220U discloses a coaxiality detection device, which solves the problem of difficult coaxiality measurement at both ends of shaft parts with a middle bulge. However, there are still the following problems: 1. When this device faces bearing housings of different specifications, it is necessary to adapt and use conversion sleeves of different specifications for processing, increasing the actual detection cost; 2. Manual operation and manual reading and detection are required. This not only increases the labor intensity, but also due to excessive manual intervention, it is greatly affected by the operator factors and is prone to affecting the detection accuracy. Summary of the Invention

[0004] Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a coaxiality detection device for bearing housings, mainly to solve the problems that when facing bearing housings of different specifications, it is necessary to adapt and use conversion sleeves of different specifications for processing, increasing the actual detection cost, being greatly affected by the operator factors and being prone to affecting the detection accuracy.

[0005] Technical Solutions To achieve the above object, the present invention provides the following technical solutions: A coaxiality detection device for bearing housings includes a mounting assembly. The mounting assembly includes a workbench. A bearing housing to be tested is installed at the center of the top of the workbench. Testing components are installed on both the left and right sides of the surface of the workbench. The testing component includes a linear motor fixed to the bottom of the workbench. A displacement block is fixed to the moving end of the linear motor. A screw rod is installed through the top of the displacement block. A vertical plate is arranged at the rear side of the displacement block. A small motor is installed on one side of the vertical plate. A stud is movably installed at the top of the surface of the vertical plate. A slider is threadedly sleeved on the stud. One end of the slider is movably connected to a movable sleeve. A ranging sensor is fixed to the other side of the movable sleeve. A spiral groove is formed in the outer ring of the movable sleeve. A cross bar is fixed to one side of the vertical plate. A power connection terminal is fixedly inlaid at the other end of the cross bar. A spring and an auxiliary block are respectively sleeved on the cross bar.

[0006] As a further solution of the present invention, the bottom of the screw is rotatably connected to the vertical plate, and the output end of the small motor is fixedly connected to the stud.

[0007] As a further solution of the present invention, a scale groove is provided on the outer side of the vertical plate, the number of studs is two, and the thread rotation directions on the two studs are opposite.

[0008] As a further solution of the present invention, a positioning rod is fixed on the stud on the left side, and a positioning groove is provided on the stud on the right side, and the positioning groove cooperates with the positioning rod.

[0009] As a further solution of the present invention, one end of the spring is fixed to the slider, and the other end of the spring is fixed to the auxiliary block.

[0010] As a further solution of the present invention, the auxiliary block cooperates with the spiral groove, and an electromagnet is fixedly embedded inside the auxiliary block, and the left and right electromagnets cooperate with each other.

[0011] As a further solution of the present invention, the inner diameter of the movable sleeve is larger than the diameter of the stud, and the cross bar penetrates through the slider and is in sliding contact with the slider.

[0012] As a further solution of the present invention, a first guiding groove and a second guiding groove are respectively provided on the workbench, the first guiding groove cooperates with the displacement block, and the second guiding groove cooperates with the vertical plate.

[0013] As a further solution of the present invention, an installation groove is provided at the top of the workbench, and a fastener penetrates through the bearing seat to be measured.

[0014] Beneficial effects Compared with the prior art, the present invention provides a bearing seat coaxiality detection device, which has the following beneficial effects: 1. Through the setting of the test component, the present invention realizes the function of good detection, can flexibly adjust the position of the vertical plate, and the distance measuring sensor rotates for electronic distance detection, solving the problems of high detection cost and general accuracy of manual operation of the existing device.

[0015] 2. Through the setting of the displacement block, screw and vertical plate, the present invention realizes the function of height adjustment, and can flexibly adjust the height of the vertical plate to adapt to bearing seats to be measured with different specifications.

[0016] 3. Through the setting of the small motor, stud and slider, the present invention realizes the function of convenient operation. Driven by the small motor, the slider will flexibly displace, which is beneficial to subsequent detection, and the operation is rapid and convenient.

[0017] 4. The present invention realizes the function of rotation detection through the settings of a spring, an auxiliary block, a movable sleeve, and a spiral groove. When the auxiliary block is displaced, it can cooperate with the spiral groove to cause the movable sleeve to rotate, and then the movable sleeve can perform multi-position detection within the workbench.

[0018] 5. The present invention realizes the function of convenient rotation through the settings of a power connection terminal and an electromagnet. When the two power connection terminals are in a butt-jointed state, the electromagnet is energized to generate magnetic force, causing the auxiliary block to automatically move outwards. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. is a front-side three-dimensional structural schematic diagram of a bearing seat coaxiality detection device proposed by the present invention; Figure 2 FIG. is a sectional structural schematic diagram of a bearing seat coaxiality detection device proposed by the present invention; Figure 3 FIG. is a structural schematic diagram of an installation component of a bearing seat coaxiality detection device proposed by the present invention; Figure 4 FIG. is a structural schematic diagram of a test component of a bearing seat coaxiality detection device proposed by the present invention; Figure 5 FIG. is a Figure 4 partial structural separation schematic diagram of the test component of a bearing seat coaxiality detection device proposed by the present invention; Figure 6 FIG. is a Figure 5 magnified structural schematic diagram of part A of a bearing seat coaxiality detection device proposed by the present invention; Figure 7 FIG. is another perspective schematic diagram of a slider of a bearing seat coaxiality detection device proposed by the present invention.

[0020] In the figure: 100, installation component; 101, workbench; 102, installation groove; 103, first guiding groove; 104, second guiding groove; 105, fastener; 106, bearing seat to be measured; 200, test component; 201, linear motor; 202, displacement block; 203, screw rod; 204, scale groove; 205, small motor; 206, stud; 207, slider; 208, vertical plate; 209, cross bar; 210, spring; 211, auxiliary block; 212, power connection terminal; 213, electromagnet; 214, movable sleeve; 215, spiral groove; 216, distance measuring sensor; 217, positioning rod; 218, positioning groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, technical solutions, and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] The serial numbers assigned to components in this text itself, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. The terms "connection" and "coupling" as used in this invention, unless otherwise specifically stated, both include direct and indirect connection (coupling). In the description of this invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0023] In this invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0024] Refer to Figures 1-7, A coaxiality detection device for a bearing housing, comprising a mounting assembly 100. The mounting assembly 100 includes a workbench 101. At the center of the top of the workbench 101, a bearing housing to be tested 106 is mounted. On both the left and right sides of the surface of the workbench 101, a test assembly 200 is mounted. The test assembly 200 includes a linear motor 201 fixed to the bottom of the workbench 101. A displacement block 202 is fixed to the mobile end of the linear motor 201. A screw rod 203 is installed through the top of the displacement block 202. A vertical plate 208 is arranged at the rear side of the displacement block 202. A small motor 205 is screwed to one side of the vertical plate 208. A stud 206 is movably installed at the top of the surface of the vertical plate 208. A slider 207 is threadedly sleeved on the stud 206. One end of the slider 207 is movably connected to a movable sleeve 214. A distance measuring sensor 216 is fixed to the other side of the movable sleeve 214. A spiral groove 215 is formed on the outer ring of the movable sleeve 214. A cross bar 209 is fixed to one side of the vertical plate 208. A power connection terminal 212 is fixedly inlaid at the other end of the cross bar 209. A spring 210 and an auxiliary block 211 are respectively sleeved on the cross bar 209. The outer end of the stud 206 is smooth and is movably connected to the vertical plate 208 through a bearing. The auxiliary block 211 is in sliding contact with the cross bar 209. The device is configured with a digital display controller for digitally displaying the distance signal detected by the distance measuring sensor 216, which is beneficial for the staff to view. The bottom of the screw rod 203 is rotatably connected to the vertical plate 208. The output end of the small motor 205 is fixedly connected to the stud 206.

[0025] In particular, in the present invention, the screw rod 203 is threadedly connected to the displacement block 202. The bottom end of the screw rod 203 is smoothly designed. The bottom front side of the vertical plate 208 is convexly arranged. And the smooth surface on the screw rod 203 is movably connected to the convex position of the vertical plate 208 through a bearing, which is used to ensure the rotational stability of the screw rod 203. And when the screw rod 203 moves up and down, the vertical plate 208 will also move up and down. An anti-slip wheel is fixed to the top of the screw rod 203, which is used to facilitate the staff to drive the screw rod 203 to rotate. A scale groove 204 is formed on the outer side of the vertical plate 208. The number of the studs 206 is two, and the thread directions of the two studs 206 are opposite.

[0026] It should be noted that the existence of the scale groove 204 can facilitate the staff to judge the position of the vertical plate 208, and then adjust the stud 206 to be at the central axis position of the bearing housing to be tested 106. Since the thread directions of the two studs 206 are opposite, when the stud 206 is driven to rotate, the two sliders 207 move outward or inward simultaneously.

[0027] In the present invention, a positioning rod 217 is fixed on the stud 206 on the left side, and a positioning groove 218 is formed on the stud 206 on the right side. The positioning groove 218 cooperates with the positioning rod 217. Through the arrangement of the positioning rod 217 and the positioning groove 218, the quick and accurate butt joint installation between the two studs 206 can be facilitated. In the state where the positioning rod 217 and the positioning groove 218 are butt-joint installed, when the small motor 205 drives a single stud 206 to rotate, the other stud 206 will rotate synchronously.

[0028] In the present invention, one end of the spring 210 is fixed on the slider 207, and the other end of the spring 210 is fixed on the auxiliary block 211. Through the arrangement of the spring 210, elastic connection with the auxiliary block 211 can be achieved. Without external force, the auxiliary block 211 is maintained outside the movable sleeve 214. When the auxiliary block 211 is displaced by external force, the movable sleeve 214 rotates in cooperation with the spiral groove 215, and the spring 210 is compressed to store energy.

[0029] In the present invention, the auxiliary block 211 cooperates with the spiral groove 215. An electromagnet 213 is fixedly inlaid inside the auxiliary block 211. The two electromagnets 213 on the left and right cooperate with each other. When the electromagnets 213 are energized, the magnetic poles on the opposite sides of the two electromagnets 213 are opposite, that is, a repulsive force will be generated, causing the two auxiliary blocks 211 to displace outward simultaneously. The external power supply, the power connection terminal 212 and the electromagnet 213 are connected in series in sequence. When the two power connection terminals 212 are butted and connected, the electromagnet 213 will be energized to generate magnetic force. Steel balls are in clearance fit with the bottom of the auxiliary block 211. The steel balls are placed in the spiral groove 215 and are in rolling contact with the spiral groove 215, which can effectively reduce the contact friction force and is beneficial to the displacement of the auxiliary block 211 and the rotation of the movable sleeve 214.

[0030] In the present invention, the inner diameter of the movable sleeve 214 is larger than the diameter of the stud 206. The cross bar 209 penetrates through the slider 207 and is in sliding contact with the slider 207. When the slider 207 is displaced, the movable sleeve 214 will not contact the thread on the stud 206, and the movable sleeve 214 can rotate flexibly on the slider 207. When in use, through the arrangement of the cross bar 209, the displacement of the slider 207 can be guided, ensuring the action stability of the slider 207, and also guiding the displacement of the auxiliary block 211.

[0031] In the present invention, a first guiding groove 103 and a second guiding groove 104 are respectively formed on the workbench 101. The first guiding groove 103 cooperates with the displacement block 202, and the second guiding groove 104 cooperates with the vertical plate 208. Through the arrangement of the first guiding groove 103 and the displacement block 202, the action stability of the displacement block 202 can be effectively improved. When in use, through the arrangement of the second guiding groove 104 and the vertical plate 208, the action stability of the vertical plate 208 can be effectively improved.

[0032] In the present invention, an installation groove 102 is formed at the top of the workbench 101. A fastener 105 is installed through the bearing seat 106 to be measured. The fastener 105 includes a fastening bolt and a fastening nut. The fastening bolt passes through the bearing seat 106 to be measured and the installation groove 102, and the fastening nut is located at the bottom of the workbench 101 and is threadedly sleeved on the fastening bolt, so that the bearing seat 106 to be measured can be stably installed on the workbench 101. During use, the installation groove 102 can provide an installation space for the fastener 105 and at the same time adapt to the fixed installation requirements of various specifications of the bearing seats 106 to be measured.

[0033] The working principle of the present invention: S1: The vertical plate 208 is located outside the second guiding groove 104. Cooperating with the fastener 105 and the installation groove 102, the bearing seat 106 to be measured is stably installed at the central position on the top of the workbench 101. S2: According to the position of the axis of the bearing seat 106 to be measured, the driving screw 203 is rotated, and with the assistance of the scale groove 204, the height of the vertical plate 208 is adjusted. S3: Then, the linear motor 201 is controlled to work, so that the screw 203 and the vertical plate 208 are displaced to adjust the position of the stud 206. Under the positioning of the positioning rod 217 and the positioning groove 218, until the two studs 206 are in contact. S4: The small motor 205 is controlled to work to drive the two studs 206 to rotate synchronously. Under the screw drive, the two sliders 207 move inward at the same time. Under the guidance of the cross bar 209, the movement stability of the sliders 207 is ensured until the left and right cross bars 209 are in contact. At this time, the distance measuring sensor 216 is located inside the bearing seat 106 to be measured. S5: When the two cross bars 209 are in contact, the two power connection terminals 212 cooperate to connect the circuit of the electromagnet 213. The electromagnet 213 is energized to generate a magnetic force, which can cause the two auxiliary blocks 211 to move outward on the cross bar 209, and the spring 210 is compressed. S6: Under the guidance of the spiral groove 215, the movable sleeve 214 will drive the distance measuring sensor 216 to rotate, and multiple distance measuring sensors 216 perform multi-position distance measurement on the inside of the bearing seat 106 to be measured. S7: When there is a distance deviation and the deviation value is greater than the allowable error range, it indicates that there is a defect in the coaxiality inside the bearing seat 106 to be measured.

[0034] The technical features of the above embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0035] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the appended claims.

Claims

1. A bearing housing coaxiality detection device, comprising a mounting assembly (100), characterized in that, The installation component (100) includes a workbench (101). At the center of the top of the workbench (101), a bearing seat to be tested (106) is installed. On both the left and right sides of the surface of the workbench (101), test components (200) are installed. The test component (200) includes a linear motor (201) fixed to the bottom of the workbench (101). A displacement block (202) is fixed to the mobile end of the linear motor (201). A screw rod (203) is installed through the top of the displacement block (202). A vertical plate (208) is arranged at the rear side of the displacement block (202). A small motor (205) is installed on one side of the vertical plate (208). A stud (206) is movably installed at the top of the surface of the vertical plate (208). A slider (207) is threadedly sleeved on the stud (206). One end of the slider (207) is movably connected to a movable sleeve (214). A ranging sensor (216) is fixed to the other side of the movable sleeve (214). A spiral groove (215) is formed in the outer ring of the movable sleeve (214). A cross bar (209) is fixed to one side of the vertical plate (208). A power connection terminal (212) is fixedly inlaid at the other end of the cross bar (209). A spring (210) and an auxiliary block (211) are respectively sleeved on the cross bar (209).

2. The coaxiality detection device for a bearing block according to claim 1, wherein, The bottom of the screw rod (203) is rotatably connected to the vertical plate (208). The output end of the small motor (205) is fixedly connected to the stud (206).

3. The coaxiality detection device for a bearing block according to claim 1, wherein, A scale groove (204) is formed on the outer side of the vertical plate (208). The number of the studs (206) is two, and the thread rotation directions of the two studs (206) are opposite.

4. The coaxiality detection device for a bearing block according to claim 3, characterized in that, A positioning rod (217) is fixed to the stud (206) on the left side. A positioning groove (218) is formed in the stud (206) on the right side, and the positioning groove (218) cooperates with the positioning rod (217).

5. The coaxiality detection device for a bearing block according to claim 1, characterized in that, One end of the spring (210) is fixed to the slider (207), and the other end of the spring (210) is fixed to the auxiliary block (211).

6. The coaxiality detection device for a bearing housing according to claim 5, wherein, The auxiliary block (211) cooperates with the spiral groove (215). An electromagnet (213) is fixedly inlaid on the inner side of the auxiliary block (211), and the left and right electromagnets (213) cooperate with each other.

7. The coaxiality detection device for a bearing block according to claim 1, wherein The inner diameter of the movable sleeve (214) is larger than the diameter of the stud (206). The cross bar (209) penetrates through the slider (207) and is in sliding contact with the slider (207).

8. The coaxiality detection device for a bearing block according to claim 1, wherein, A first guiding groove (103) and a second guiding groove (104) are respectively formed on the workbench (101). The first guiding groove (103) cooperates with the displacement block (202), and the second guiding groove (104) cooperates with the vertical plate (208).

9. A coaxiality detection device for a bearing housing according to claim 1, characterized in that An installation groove (102) is formed on the top of the workbench (101). A fastener (105) is installed through the bearing seat to be tested (106).

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