Measuring device for half axle gear based on spline

Abstract

The utility model relates to the technical field of machining, and particularly discloses a half axle gear spline-based measuring device which comprises a base, the center of the upper surface of the base is rotatably connected with a first rotating shaft through a bearing, and the top end of the first rotating shaft is fixedly provided with a rotating table. The upper surface of the rotating table is provided with a containing groove which is correspondingly connected with the gear face of the tooth portion of the half axle gear in a clamped mode, and the center of the bottom of the inner wall of the containing groove is provided with a limiting gear column which is correspondingly connected with the lower end, close to the gear face, of a spline in the neck of the half axle gear in a clamped mode. The beneficial effects of the device are that the device facilitates the rapid and automatic clamping of a half axle gear, facilitates the rapid adjustment and movement of an installation plane run-out measuring head and a shaft diameter run-out measuring head, enables the measuring heads to abut against a proper measurement position on the half axle gear, facilitates the automatic control and rotation of the half axle gear, and facilitates the testing. Convenience is brought to measurement and detection work, and use requirements can be well met.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, specifically to a spline-based measuring device for a half-shaft gear. Background Technology

[0002] The differential half-shaft gear is a bevel gear and an important component of the automobile differential. Its structure has bevel teeth facing outwards and a centrally located splined shaft hole.

[0003] Traditional manual visual inspection of runout values ​​cannot record real-time runout values ​​and suffers from low detection efficiency. By using the spline of the differential half-shaft gear as a reference to inspect the mounting plane runout and shaft diameter runout, the machining quality of the differential half-shaft gear can be determined. Shaft diameter runout is in the direction of the spline's rotational axis, i.e., the same direction as the spline's central axis. Mounting plane runout is the direction of the radius of the spline's rotation. The direction of mounting plane runout is perpendicular to the direction of shaft diameter runout. Combining these two factors allows for the assessment of the machining quality of the differential half-shaft gear based on the spline.

[0004] However, existing spline-based measuring devices for half-shaft gears are not convenient for rapid automated clamping of the half-shaft gears, nor for quickly adjusting and moving the mounting plane runout probe and shaft diameter runout probe to match the appropriate measuring position on the half-shaft gear, nor for automatically controlling the rotation of the half-shaft gear for testing. This has an adverse effect on the measurement and inspection work and cannot well meet the usage requirements. Therefore, a spline-based measuring device for half-shaft gears is proposed. Utility Model Content

[0005] To effectively solve the problems in the background art and overcome the technical defects in the prior art, this utility model provides the following technical solution:

[0006] A measuring device for a half-shaft gear based on a spline includes a base. A rotating shaft is rotatably connected to the center of the upper surface of the base via a bearing. A rotating platform is fixedly mounted on the top of the rotating shaft. The upper surface of the rotating platform has a placement groove that corresponds to the gear face of the half-shaft gear teeth. A limiting gear post is provided at the center of the bottom of the inner wall of the placement groove, corresponding to the lower end of the spline in the neck of the half-shaft gear near the gear face. A reciprocating lifting assembly is fixedly mounted at the rear end of the upper surface of the base. A rotating assembly is fixedly mounted on the front side of the reciprocating lifting assembly. The bottom end of the rotating assembly... A conical pressing block with a pointed bottom is fixedly installed. A limiting rack is provided on the outer side of the conical pressing block, which is engaged with the lower end of the spline in the neck of the half-shaft gear away from the gear surface. A lifting and telescopic component one is fixedly installed on the right side of the upper surface of the base. A running head corresponding to the upper surface of the half-shaft gear tooth away from the gear surface is fixedly installed on the inner end of the lifting and telescopic component one. A lifting and telescopic component two is fixedly installed on the front side of the upper surface of the base. A shaft diameter running head corresponding to the outer side of the neck of the half-shaft gear is fixedly installed on the inner end of the lifting and telescopic component two.

[0007] As a preferred embodiment of this utility model, the reciprocating lifting assembly includes a fixed plate, a mounting groove, a guide rod, a lead screw, a slider, and a reciprocating motor. The fixed plate is fixedly installed on the rear side of the upper surface of the base. The upper part of the front side of the fixed plate has a mounting groove. The guide rod is fixedly installed between the top and bottom of the inner wall of the mounting groove. The lead screw is rotatably connected between the top and bottom of the inner wall of the mounting groove through a bearing. The guide rod and the lead screw are parallel to each other. The guide rod is slidably connected to a sliding hole on the upper surface of the slider. The lead screw is threadedly connected to a threaded hole on the upper surface of the slider. The reciprocating motor is fixedly installed on the upper surface of the fixed plate. The output shaft of the reciprocating motor is fixedly connected to the top end of the lead screw.

[0008] As a preferred technical solution of this utility model, the rotating assembly includes a lifting plate, a second rotating shaft, a driven gear, a driving gear, and a rotating motor. The lifting plate is fixedly installed on the front side of the slider. The top end of the second rotating shaft is rotatably connected to the front side of the bottom of the lifting plate through a bearing. The bottom end of the second rotating shaft is fixedly connected to the center of the upper surface of the conical lower pressure block. The top end of the second rotating shaft is fixedly connected to the center of the bottom of the driven gear. A rotating motor is fixedly installed on the rear side of the upper surface of the lifting plate. The output shaft of the rotating motor is fixedly connected to the center of the bottom of the driving gear. The driving gear and the driven gear mesh accordingly.

[0009] As a preferred technical solution of this utility model, the conical pressing block is a conical rubber block that is thicker at the top and thinner at the bottom, and the limiting rack is a rubber strip integrally formed on the outside of the conical pressing block. The outer diameter of the top of the conical pressing block is larger than the inner diameter of the spline in the neck of the half-shaft gear, and the outer diameter of the bottom of the conical pressing block is smaller than the inner diameter of the spline in the neck of the half-shaft gear.

[0010] As a preferred technical solution of this utility model, the lifting and telescopic assembly includes an electric lifting rod, a connecting block, and an electric telescopic rod. The electric lifting rod is fixedly installed on the right side of the upper surface of the base. The top of the electric lifting rod is fixedly installed with the connecting block. The electric telescopic rod is fixedly installed on the left side of the connecting block. The bottom of the mounting seat at the left end of the electric telescopic rod is fixedly installed with a plane jump probe.

[0011] As a preferred technical solution of this utility model, the lifting and telescopic assembly two includes an electric lifting rod two, a connecting block two, and an electric telescopic rod two. The electric lifting rod two is fixedly installed on the front side of the upper surface of the base. The top end of the electric lifting rod two is fixedly installed with the connecting block two. The electric telescopic rod two is fixedly installed on the rear side of the connecting block two. The rear end of the electric telescopic rod two is fixedly installed with a shaft diameter runout probe on the rear side of the mounting seat two.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This half-shaft gear measuring device based on splines has a reasonable and practical structure, is easy to operate, facilitates rapid and automated clamping of the half-shaft gear, facilitates rapid adjustment and movement of the mounting plane runout probe and shaft diameter runout probe to make them contact the appropriate measuring position on the half-shaft gear, and facilitates automatic control of the rotation of the half-shaft gear for testing, bringing convenience to the measurement and inspection work and well meeting the usage requirements; specifically, the reciprocating lifting component can drive the bottom end of the conical lower pressure block to insert from top to bottom into the inner spline of the neck of the half-shaft gear, and cooperate with the rotating table and the gear surface of the half-shaft gear teeth that are inserted into the placement slot to complete the upper and lower clamping and fixing of the half-shaft gear. The rotating component can... The device drives the clamped and fixed half-shaft gear to rotate, facilitating measurement and testing. The first lifting and telescopic component moves the mounting plane runout probe to a suitable position, aligning it with the upper surface of the half-shaft gear teeth away from the gear face. The second lifting and telescopic component moves the shaft diameter runout probe to a suitable position, aligning it with the outer side of the half-shaft gear neck. During the rotation of the half-shaft gear being tested, the axial movement of the mounting plane and / or the radial movement of the shaft diameter are measured using the mounting plane runout probe and / or the shaft diameter runout probe. Then, the axial movement of the mounting plane and / or the radial movement of the shaft diameter can be converted into mounting plane runout and / or shaft diameter runout using an existing built-in converter, completing the measurement and testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the rotating shaft and the rotating table of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the half-shaft gear of this utility model.

[0016] Figure 4 This is a schematic diagram of the reciprocating lifting assembly of this utility model.

[0017] Figure 5 This is a schematic diagram of the rotating assembly of this utility model.

[0018] Figure 6 This is a schematic diagram of the conical lower pressure block of this utility model.

[0019] Figure 7 This is a structural schematic diagram of the lifting and telescopic component of this utility model.

[0020] Figure 8 This is a structural schematic diagram of the second lifting and telescopic component of this utility model.

[0021] In the diagram: 1. Base; 2. Rotating shaft 1; 3. Rotating table; 4. Placement slot; 5. Limiting gear column; 6. Reciprocating lifting assembly; 6. Fixing plate; 61. Mounting slot; 62. Guide rod; 63. Lead screw; 64. Slider; 65. Reciprocating motor; 66. Rotating assembly; 7. Lifting plate; 71. Rotating shaft 2; 72. Driven gear; 73. Driving gear; 74. Rotating motor; 75. Lifting telescopic assembly 1; 8. Electric lifting rod 1; 81. Connecting block 1; 82. Electric telescopic rod 1; 83. Lifting telescopic assembly 2; 9. Electric lifting rod 2; 91. Connecting block 2; 92. Electric telescopic rod 2; 93. Conical pressing block; 10. Limiting rack; 11. Mounting plane runout probe; 12. Shaft diameter runout probe; 13. Half-shaft gear teeth; 14. Half-shaft gear neck; 15. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-8This utility model provides a technical solution: a measuring device for a half-shaft gear based on a spline, including a base 1. A rotating shaft 2 is rotatably connected to the center of the upper surface of the base 1 via a bearing. A rotating platform 3 is fixedly installed at the top of the rotating shaft 2. The upper surface of the rotating platform 3 is provided with a placement groove 4 that corresponds to and engages with the gear face of the half-shaft gear tooth 14. A limiting gear post 5 is provided at the center of the bottom of the inner wall of the placement groove 4, which corresponds to and engages with the lower end of the spline in the neck 15 of the half-shaft gear near the gear face. The limiting gear post 5 plays an auxiliary limiting, guiding, and fixing role. A reciprocating lifting assembly 6 is fixedly installed at the rear end of the upper surface of the base 1. A rotating assembly 7 is fixedly installed at the front side of the reciprocating lifting assembly 6. A conical pressing block 10 with a pointed bottom is fixedly installed at the bottom end of the rotating assembly 7. A limiting rack 11 is provided on the outer side of the conical pressing block 10, which corresponds to and engages with the lower end of the spline in the neck 15 of the half-shaft gear away from the gear face. The limiting rack 11 engages with the lower end of the spline in the neck 15 of the half-shaft gear away from the gear face. The spline of component 11 serves as a limiting and fixing mechanism. A lifting and telescopic assembly 8 is fixedly installed on the right side of the upper surface of the base 1. A mounting plane runout probe 12, corresponding to the upper surface of the half-shaft gear tooth 14 away from the gear surface, is fixedly installed on the inner end of the lifting and telescopic assembly 8. A lifting and telescopic assembly 9 is fixedly installed on the front side of the upper surface of the base 1. A shaft diameter runout probe 13, corresponding to the outer side of the half-shaft gear neck 15, is fixedly installed on the inner end of the lifting and telescopic assembly 9. During the rotation of the half-shaft gear being tested, the axial movement of the mounting plane and / or the radial movement of the shaft diameter of the gear 7 being tested is measured by the mounting plane runout probe 12 and / or the shaft diameter runout probe 13. Then, the axial movement of the mounting plane and / or the radial movement of the shaft diameter can be converted into mounting plane runout and / or shaft diameter runout by the existing built-in converter to complete the measurement and detection. Its working principle is existing technology and will not be described further here.

[0024] Furthermore, the reciprocating lifting assembly 6 includes a fixed plate 61, a mounting groove 62, a guide rod 63, a lead screw 64, a slider 65, and a reciprocating motor 66. The fixed plate 61 is fixedly installed on the rear side of the upper surface of the base 1. The mounting groove 62 is formed on the upper part of the front side of the fixed plate 61. The guide rod 63 is fixedly installed between the top and bottom of the inner wall of the mounting groove 62. The lead screw 64 is rotatably connected between the top and bottom of the inner wall of the mounting groove 62 through a bearing. The guide rod 63 and the lead screw 64 are parallel to each other. The guide rod 63 is slidably connected to the sliding hole on the upper surface of the slider 65. The lead screw 64 is slidably connected to the upper surface of the slider 65. The threaded hole is connected by a threaded connection. The reciprocating motor 66 is fixedly installed on the upper surface of the fixed plate 61. The output shaft of the reciprocating motor 66 is fixedly connected to the top of the lead screw 64. By driving the lead screw 64 to rotate through the reciprocating motor 66, the slider 65, the rotating component 7, and the conical lower pressure block 10 can be driven to rise and fall. This allows the bottom end of the conical lower pressure block 10 to be inserted from top to bottom into the internal spline of the neck 15 of the half-shaft gear. This, together with the rotating table 3 and the gear surface of the half-shaft gear tooth 14 that is inserted into the placement slot 4, completes the upper and lower clamping and fixing of the half-shaft gear, so as to facilitate measurement and testing.

[0025] Furthermore, the rotating assembly 7 includes a lifting plate 71, a second rotating shaft 72, a driven gear 73, a driving gear 74, and a rotating motor 75. The lifting plate 71 is fixedly installed on the front side of the slider 65. The top end of the second rotating shaft 72 is rotatably connected to the front side of the bottom of the lifting plate 71 via a bearing. The bottom end of the second rotating shaft 72 is fixedly connected to the center of the upper surface of the conical lower pressure block 10. The top end of the second rotating shaft 72 is fixedly connected to the center of the bottom of the driven gear 73. The rotating motor 75 is fixedly installed on the rear side of the upper surface of the lifting plate 71. The output shaft of the rotating motor 75 is fixedly connected to the center of the bottom of the driving gear 74. The driving gear 74 meshes with the driven gear 73. By rotating the driving gear 74 driven by the rotating motor 75, the second rotating shaft 72 and the driven gear 73 can be rotated, which in turn can drive the clamped and fixed half-shaft gear to rotate, so as to cooperate for measurement and detection.

[0026] Furthermore, the conical lower pressure block 10 is a conical rubber block that is thicker at the top and thinner at the bottom, and the limiting toothed rack 11 is a rubber strip integrally formed on the outside of the conical lower pressure block 10. The outer diameter of the top of the conical lower pressure block 10 is larger than the inner diameter of the spline in the neck of the half-shaft gear 15, and the outer diameter of the bottom of the conical lower pressure block 10 is smaller than the inner diameter of the spline in the neck of the half-shaft gear 15.

[0027] Furthermore, the lifting and telescopic assembly 8 includes an electric lifting rod 81, a connecting block 82, and an electric telescopic rod 83. The electric lifting rod 81 is fixedly installed on the right side of the upper surface of the base 1. The connecting block 82 is fixedly installed at the top of the electric lifting rod 81. The electric telescopic rod 83 is fixedly installed on the left side of the connecting block 82. The mounting plate jump probe 12 is fixedly installed at the bottom of the mounting seat 1 at the left end of the electric telescopic rod 83. Through the vertical lifting and lowering movement of the electric lifting rod 81 and the horizontal telescopic movement of the electric telescopic rod 83, the mounting plate jump probe 12 can be driven to lift, extend, and move to a suitable position and make corresponding contact with the upper surface of the half-shaft gear tooth 14 away from the gear surface.

[0028] Furthermore, the lifting and telescopic assembly 29 includes an electric lifting rod 291, a connecting block 292, and an electric telescopic rod 293. The electric lifting rod 291 is fixedly installed on the front side of the upper surface of the base 1. The connecting block 292 is fixedly installed on the top of the electric lifting rod 291. The electric telescopic rod 293 is fixedly installed on the rear side of the connecting block 292. The shaft diameter runout probe 13 is fixedly installed on the rear side of the mounting seat 2 at the rear end of the electric telescopic rod 293. Through the vertical lifting and lowering movement of the electric lifting rod 291 and the horizontal telescopic movement of the electric telescopic rod 293, the shaft diameter runout probe 13 can be driven to lift, extend, and move to a suitable position and make corresponding contact with the outer side of the half-shaft gear neck 15.

[0029] Specifically, the reciprocating motor 66, the rotary motor 75, the electric lifting rod 81, the electric telescopic rod 83, the electric lifting rod 91, the electric telescopic rod 93, the mounting plane runout probe 12, and the shaft diameter runout probe 13 are electrically connected to the external controller and the power supply, respectively. The reciprocating motor 66, the rotary motor 75, the electric lifting rod 81, the electric telescopic rod 83, the electric lifting rod 91, the electric telescopic rod 93, the mounting plane runout probe 12, and the shaft diameter runout probe 13 in this utility model are all conventional devices commonly used in the prior art, and their connection and working principle are all existing Changshu technology, which will not be described in detail here.

[0030] When using:

[0031] The reciprocating motor 66 drives the lead screw 64 to rotate, which in turn drives the slider 65, the rotating assembly 7, and the conical lower pressure block 10 to rise and fall. This allows the bottom end of the conical lower pressure block 10 to be inserted from top to bottom into the internal spline of the neck 15 of the half-shaft gear. This, in conjunction with the rotating table 3 and the gear surface of the half-shaft gear tooth 14 that is inserted into the placement slot 4, completes the upper and lower clamping and fixing of the half-shaft gear, so as to facilitate measurement and testing.

[0032] By rotating the motor 75 to drive the drive gear 74, the rotating shaft 72 and the driven gear 73 can be driven to rotate, which in turn can drive the clamped and fixed half shaft gear to rotate, so as to cooperate for measurement and detection.

[0033] By vertically lifting and lowering the electric lifting rod 81 and horizontally extending and retracting the electric telescopic rod 83, the mounting plane jumping probe 12 can be driven to lift, extend, and retract to a suitable position and make corresponding contact with the upper surface of the half-shaft gear tooth 14 away from the gear surface.

[0034] By vertically lifting and lowering the electric lifting rod 291 and horizontally extending and retracting the electric telescopic rod 293, the shaft diameter runout probe 13 can be driven to lift, extend, and retract to a suitable position and make corresponding contact with the outer side of the half-shaft gear neck 15.

[0035] During the rotation of the half-shaft gear under test, the axial movement of the mounting plane and / or the radial movement of the shaft diameter of the gear under test 7 are measured by the mounting plane runout probe 12 and / or the shaft diameter runout probe 13. Then, the axial movement of the mounting plane and / or the radial movement of the shaft diameter can be converted into the mounting plane runout and / or the shaft diameter runout by the existing built-in converter to complete the measurement and detection.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A semi-axle gear spline-based measuring device comprising a base (1), characterized in that: The center of the upper surface of the base (1) is rotatably connected to a rotating shaft (2) via a bearing. A rotating platform (3) is fixedly installed at the top of the rotating shaft (2). The upper surface of the rotating platform (3) is provided with a placement groove (4) that corresponds to the gear face of the half-shaft gear tooth (14). The center of the bottom of the inner wall of the placement groove (4) is provided with a limiting gear column (5) that corresponds to the lower end of the spline in the neck of the half-shaft gear (15) near the gear face. A reciprocating lifting assembly (6) is fixedly installed at the rear end of the upper surface of the base (1). A rotating assembly (7) is fixedly installed at the front side of the reciprocating lifting assembly (6). A bottom conical circular... A conical pressing block (10) is provided on the outside of which a limiting rack (11) is provided to engage with the lower end of the spline of the half-shaft gear neck (15) away from the gear surface. A lifting telescopic assembly one (8) is fixedly installed on the right side of the upper surface of the base (1). A mounting plane runout probe (12) corresponding to the upper surface of the half-shaft gear tooth (14) away from the gear surface is fixedly installed on the inner end of the lifting telescopic assembly one (8). A lifting telescopic assembly two (9) is fixedly installed on the front side of the upper surface of the base (1). A shaft diameter runout probe (13) corresponding to the outer side of the half-shaft gear neck (15) is fixedly installed on the inner end of the lifting telescopic assembly two (9).

2. The semi-axle gear spline based measurement device of claim 1, wherein: The reciprocating lifting assembly (6) includes a fixed plate (61), a mounting groove (62), a guide rod (63), a lead screw (64), a slider (65), and a reciprocating motor (66). The fixed plate (61) is fixedly installed on the rear side of the upper surface of the base (1). The upper part of the front side of the fixed plate (61) is provided with a mounting groove (62). The guide rod (63) is fixedly installed between the top and bottom of the inner wall of the mounting groove (62). The lead screw (64) is rotatably connected between the top and bottom of the inner wall of the mounting groove (62) through a bearing. The guide rod (63) and the lead screw (64) are parallel to each other. The guide rod (63) is slidably connected to the sliding hole on the upper surface of the slider (65). The lead screw (64) is threadedly connected to the threaded hole on the upper surface of the slider (65). The reciprocating motor (66) is fixedly installed on the upper surface of the fixed plate (61). The output shaft of the reciprocating motor (66) is fixedly connected to the top end of the lead screw (64).

3. The half shaft gear based measuring device of claim 2, wherein: The rotating assembly (7) includes a lifting plate (71), a second rotating shaft (72), a driven gear (73), a driving gear (74), and a rotating motor (75). The lifting plate (71) is fixedly installed on the front side of the slider (65). The top end of the second rotating shaft (72) is rotatably connected to the front side of the bottom of the lifting plate (71) through a bearing. The bottom end of the second rotating shaft (72) is fixedly connected to the center of the upper surface of the conical lower pressure block (10). The top end of the second rotating shaft (72) is fixedly connected to the center of the bottom of the driven gear (73). The rotating motor (75) is fixedly installed on the rear side of the upper surface of the lifting plate (71). The output shaft of the rotating motor (75) is fixedly connected to the center of the bottom of the driving gear (74). The driving gear (74) meshes with the driven gear (73).

4. The semi-axle gear spline based measurement device of claim 1, wherein: The conical pressing block (10) is a conical rubber block that is thicker at the top and thinner at the bottom. The limiting rack (11) is a rubber strip integrally formed on the outside of the conical pressing block (10). The outer diameter of the top of the conical pressing block (10) is larger than the inner diameter of the spline in the neck of the half-shaft gear (15). The outer diameter of the bottom of the conical pressing block (10) is smaller than the inner diameter of the spline in the neck of the half-shaft gear (15).

5. The semi-axle gear pin measurement device of claim 1, wherein: The lifting and telescopic assembly 1 (8) includes an electric lifting rod 1 (81), a connecting block 1 (82) and an electric telescopic rod 1 (83). The electric lifting rod 1 (81) is fixedly installed on the right side of the upper surface of the base (1). The connecting block 1 (82) is fixedly installed at the top of the electric lifting rod 1 (81). The electric telescopic rod 1 (83) is fixedly installed on the left side of the connecting block 1 (82). The mounting base 1 at the left end of the electric telescopic rod 1 (83) is fixedly installed with a mounting plane jump probe (12).

6. The semi-axle gear spline based measurement device of claim 1, wherein: The second lifting and telescopic assembly (9) includes an electric lifting rod (91), a connecting block (92), and an electric telescopic rod (93). The electric lifting rod (91) is fixedly installed on the front side of the upper surface of the base (1). The connecting block (92) is fixedly installed at the top of the electric lifting rod (91). The electric telescopic rod (93) is fixedly installed on the rear side of the connecting block (92). The shaft diameter runout probe (13) is fixedly installed on the rear side of the mounting seat (2) at the rear end of the electric telescopic rod (93).

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