Differential housing end face runout measuring device

Abstract

The utility model discloses a differential housing end face runout measuring device comprising a pedestal, the surface of the pedestal is provided with a workpiece clamping mechanism, the workpiece clamping mechanism comprises a live center mechanism and a center vertical seat, and a workpiece to be measured is clamped between the live center mechanism and the center vertical seat. One side of the workpiece clamping mechanism is provided with a measuring mechanism, the measuring mechanism is provided with a measuring seat, the measuring seat is provided with a dial indicator and a measuring transition mechanism, one end of the measuring transition mechanism is in contact with a pointer of the dial indicator, and the other end of the measuring transition mechanism is in contact with a to-be-measured part of a to-be-measured workpiece. The technical problems of complicated measurement operation, high cost of measurement equipment and long measurement time in the prior art are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of measuring devices, and in particular relates to a differential housing end face runout measuring device. Background Art

[0002] During the actual use of the differential, the relative motion is transmitted through the bearings, main reduction gears, and half-shaft gears installed at both ends of the differential case and connected to the outside; therefore, the end face of the case is required to be relatively vertical with respect to the center line of the differential case, and the requirements for the end face runout are very high to ensure that the various connecting parts are firmly connected, so that each component can run more smoothly, its service life is increased, and the noise during the operation of the differential is reduced.

[0003] Because it is difficult to directly measure the end face runout, it is often necessary to use a three-coordinate measuring instrument to extract relevant factors for measurement. However, this measurement method is complicated to operate and requires professional personnel to perform the test. The equipment is expensive to use and the test time is long. The test results are often not obtained in time, which affects the production rhythm and increases the product manufacturing cost. Utility Model Content

[0004] The utility model aims to provide a differential housing end face runout measuring device to solve the technical problems of the prior art that the measuring operation is complicated, the measuring equipment cost is very high and the measuring time is long.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A differential housing end face runout measuring device comprises: a base, a workpiece clamping mechanism is installed on the surface of the base, the workpiece clamping mechanism comprises: a movable top mechanism and a top stand, the movable top mechanism and the top stand are used to clamp the workpiece to be measured, one side of the workpiece clamping mechanism has a measuring mechanism, the measuring mechanism has a measuring seat, a micrometer and a measuring transition mechanism are installed on the measuring seat, one end of the measuring transition mechanism contacts the needle of the micrometer, and the other end of the measuring transition mechanism contacts the measured part of the workpiece to be measured.

[0007] The utility model discloses a differential housing end face runout measuring device, wherein the movable center mechanism comprises a base, a main shaft is passed through one side of the base, a center spring for resetting is installed at one end of the main shaft, a center is assembled at the other end of the main shaft, the center stand has a center sleeve penetrating therethrough, and the workpiece to be measured is clamped between the center and the center sleeve.

[0008] The utility model discloses a differential housing end face runout measuring device, wherein a top rotating shaft is passed through the base, a top pin is passed through the main shaft, one end of the top pin is in contact with the top rotating shaft, the contact point between the top rotating shaft and the top pin is a plane, and the top pin is pushed to move left and right during the rotation of the top rotating shaft.

[0009] The utility model provides a differential housing end face runout measuring device, wherein a handle is installed at the free end of the top rotating shaft.

[0010] The utility model provides a differential housing end face runout measuring device, wherein a top linear bearing is arranged between the main shaft and the base.

[0011] The utility model discloses a differential case end face runout measuring device, wherein a measuring pad is provided at the bottom of a measuring seat, a linear slide pair is provided between the measuring seat and the measuring pad, one end of the measuring seat is connected with a quick pressing clamp through a connecting rod, and the quick pressing clamp is connected to the measuring pad through a pressing clamp seat.

[0012] The utility model discloses a differential housing end face runout measuring device, wherein the measuring seat has a measuring limit column on the other side relative to the quick pressing clamp, the measuring limit column has a measuring limit seat on the outside, the measuring limit seat is connected to the measuring cushion block, and the measuring limit column contacts or separates from the measuring limit column during the movement of the measuring seat.

[0013] The utility model discloses a differential housing end face runout measuring device, wherein the measuring transition mechanism comprises a lever, the lever is in a symmetrical bending structure, the middle part of the lever is hinged to a measuring seat through a hinge shaft, two ends of the lever are respectively provided with a ball probe and a flat probe, the ball probe contacts with a part to be measured of a workpiece to be measured, and the flat probe contacts with the part to be measured of the workpiece to be measured.

[0014] The utility model provides a differential case end face runout measuring device. The lever is provided with a measuring spring on the opposite side of the ball probe. The other end of the measuring spring is installed in a spring seat. The spring seat is connected to the side surface of the measuring seat.

[0015] The utility model provides a differential case end face runout measuring device. The lever is provided with a measuring limit pin on the opposite side of the flat probe. The measuring limit pin is installed on the spring seat.

[0016] The beneficial effects of the utility model are as follows: a differential housing end face runout measuring device is proposed, the workpiece to be measured is clamped by the cooperation of a movable top mechanism and a top stand, and then the measured value is transmitted to the micrometer through the measurement transition mechanism; the top spring is set so that the top can be automatically tightened after the workpiece to be measured is placed back; a movable measuring bottom is set and the quick pressing clamp is used to cooperate, so that the measuring seat can be moved a certain distance to make way for the installation position when the workpiece to be measured is clamped, and then moved to the measuring position and locked after the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 It is a schematic diagram of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of a workpiece clamping mechanism according to an embodiment of the utility model;

[0020] Figure 3 It is a front cross-sectional view of a workpiece clamping mechanism of an embodiment of the utility model;

[0021] Figure 4 It is a side sectional view of the workpiece clamping mechanism of the embodiment of the utility model;

[0022] Figure 5 It is a schematic diagram of the measuring mechanism of an embodiment of the utility model;

[0023] Figure 6 It is a partial cross-sectional view of the measuring mechanism of an embodiment of the utility model;

[0024] Figure 7 This is a top view of the measuring mechanism of an embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the movement direction of the handle of an embodiment of the utility model;

[0026] Fig. 9 This is a schematic diagram of the movement direction of the quick pressing pliers in an embodiment of the utility model;

[0027] Fig.10 It is an axonometric diagram of the embodiment of the utility model with the workpiece to be measured installed. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] like Figure 1-10 As shown, a differential housing end face runout measuring device comprises: a base 100, a workpiece clamping mechanism 200 is installed on the surface of the base 100, the workpiece clamping mechanism 200 comprises: a movable top mechanism 210 and a top stand 220, the movable top mechanism 210 and the top stand 220 are used to clamp a workpiece 400 to be measured, one side of the workpiece clamping mechanism 200 has a measuring mechanism 300, the measuring mechanism 300 has a measuring seat 330, a micrometer 370 and a measuring transition mechanism 390 are installed on the measuring seat 330, one end of the measuring transition mechanism 390 contacts the needle of the micrometer 370, and the other end of the measuring transition mechanism 390 contacts the measured part of the workpiece 400 to be measured.

[0030] As a preferred embodiment, the movable top mechanism 210 includes a base 211, a spindle 212 is passed through one side of the base 211, a top spring 213 for resetting is installed at one end of the spindle 212, a top 214 is assembled at the other end of the spindle 212, the top stand 220 has a penetrating top sleeve 221, and the workpiece 400 to be measured is clamped between the top 214 and the top sleeve 221.

[0031] As a preferred embodiment, a top rotating shaft 216 is provided on the base 211, and a top pin 217 is provided on the main shaft 212. One end of the top pin 217 is in contact with the top rotating shaft 216, and the contact point between the top rotating shaft 216 and the top pin 217 is a plane. The top rotating shaft 216 pushes the top pin 217 to move left and right during rotation. A flat surface is made in the middle of the rotating top rotating shaft 216. When the handle 218 is rotated counterclockwise, the flat surface of the top rotating shaft 216 can drive the top pin 217 to retreat, and finally drive the top 214 to retreat through the main shaft 212, leaving space for placing the differential housing; release the handle, and under the action of the spring, the main shaft 212 moves forward, and the top pin 217 drives the top rotating shaft 216 to rotate, and the handle is reset.

[0032] As a preferred embodiment, a handle 218 is installed at the free end of the top rotating shaft 216. The handle 218 is rotated to make the top 214 move forward or backward, thereby facilitating the installation and removal of the workpiece to be measured.

[0033] As a preferred embodiment, there is a top linear bearing 215 between the spindle 212 and the base 211, which has low friction and is relatively stable during movement, and is a stable linear motion with high sensitivity and high precision. At the same time, the spindle 212 and the linear bearing 215 are interference fit, so the movement of the spindle 212 is stable, thereby ensuring the accuracy of the top positioning.

[0034] As a preferred embodiment, the bottom of the measuring seat 330 has a measuring pad 310, and a linear slide rail pair 320 is provided between the measuring seat 330 and the measuring pad 310. One end of the measuring seat 330 is connected to a quick pressing clamp 350 through a connecting rod 360, and the quick pressing clamp 350 is connected to the measuring pad 310 through a pressing clamp seat 340.

[0035] As a preferred embodiment, the measuring seat 330 has a measuring limit column 381 on the other side relative to the quick clamp 350, and the outer side of the measuring limit column 381 has a measuring limit seat 380, and the measuring limit seat 380 is connected to the measuring pad 310, and the measuring limit column 381 contacts or separates from the measuring limit column 381 during the movement of the measuring seat 330.

[0036] As a preferred embodiment, the measurement transition mechanism 390 includes a lever 391, which is a symmetrical bending structure. The middle part of the lever 391 is hinged to the measuring seat 330 through a hinge axis. The two ends of the lever 391 are respectively provided with a spherical probe 392 and a flat probe 393. The spherical probe 392 contacts the measured part of the workpiece 400 to be measured, and the flat probe 393 contacts the measured part of the workpiece 400 to be measured. It is only necessary to loosen the quick clamp 350, and the quick clamp 350 drives the linear slide rail pair 320 to slide to the left through the connecting rod 360, and drives the upper measuring seat 330 to the left, and the ball probe 392 moves to the left accordingly, so as to avoid the probe when it is placed in the differential housing; when measuring, the quick clamp 350 is pressed, and the quick clamp 350 drives the linear slide rail pair 320 to slide to the right through the connecting rod 360, until the measuring limit column 381 on the right side of the measuring seat 330 presses against the limit seat 380, at this time, the ball probe 392 contacts the end face of the differential housing, and the end face runout can be measured by rotating the workpiece; because the limit column limits the rightward movement position of the measuring seat, the repeatability of the measurement is guaranteed.

[0037] As a preferred embodiment, the lever 391 has a measuring spring 395 on the opposite side of the ball probe 392, and the other end of the measuring spring 395 is installed in the spring seat 394. The spring seat 394 is connected to the side of the measuring seat 330. The lever 391 has a pin hole in the middle and is connected to the measuring seat 330 through a pin shaft. There is a positioning hole on each side of the lever for installing the ball probe and the flat probe. Because the distances from the positioning holes on both sides to the middle pin hole are equal, when the lever 391 rotates, the ball probe and the flat probe installed on both sides of the lever rotate the same amount, so that the change in the measured runout is transmitted to the flat probe through the ball probe in a 1:1 ratio, and finally displayed by the micrometer.

[0038] As a preferred embodiment, the lever 391 has a measuring limit pin 397 on the opposite side of the flat probe 393 , and the measuring limit pin 397 is installed on the spring seat 394 .

[0039] Compared with the prior art, the beneficial effects of the utility model are as follows: when in use, release the quick-pressing pliers, turn the handle counterclockwise, wait for the movable center to retreat, and install the differential housing; first put the right side into the center sleeve, and then align it with the center on the left, release the handle, and the differential housing is automatically tightened and positioned. Press the quick-pressing pliers, the probe contacts the end face of the differential housing, and the workpiece is rotated to complete the measurement of the end face runout. Linear bearings are used in the movable center mechanism to ensure the stability of the movable center movement; linear guides are used in the measuring mechanism to ensure the accuracy and repeatability of the measurement; when measuring, the quick-pressing pliers and the handle can be operated to easily complete the placement, measurement and removal of the differential housing. The operation is simple and the measurement efficiency is high, which greatly improves the accuracy of the measurement results and reduces the requirements for the operator's measurement skills.

[0040] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0042] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A differential case end face runout measuring device, characterized in that: include: A base (100) is provided with a workpiece clamping mechanism (200) mounted on a surface of the base (100). The workpiece clamping mechanism (200) comprises: a movable top mechanism (210) and a top stand (220). The movable top mechanism (210) and the top stand (220) are used to clamp a workpiece (400) to be measured. One side of the workpiece clamping mechanism (200) has a measuring mechanism (300). The measuring mechanism (300) has a measuring stand (330). A micrometer (370) and a measuring transition mechanism (390) are mounted on the measuring stand (330). One end of the measuring transition mechanism (390) contacts a needle of the micrometer (370), and the other end of the measuring transition mechanism (390) contacts a portion to be measured of the workpiece (400) to be measured.

2. A differential case end face runout measuring device according to claim 1, characterized in that: The movable top mechanism (210) comprises a base (211), a main shaft (212) is passed through one side of the base (211), a top spring (213) for resetting is installed at one end of the main shaft (212), a top (214) is installed at the other end of the main shaft (212), the top stand (220) has a top sleeve (221) passing through it, and the workpiece (400) to be measured is clamped between the top (214) and the top sleeve (221).

3. A differential case end face runout measuring device according to claim 2, characterized in that: A top rotating shaft (216) is provided on the base (211), and a top pin shaft (217) is provided on the main shaft (212). One end of the top pin shaft (217) contacts the top rotating shaft (216). The contact point between the top rotating shaft (216) and the top pin shaft (217) is a plane. The top rotating shaft (216) pushes the top pin shaft (217) to move left and right during rotation.

4. A differential case end face runout measuring device according to claim 3, characterized in that: A handle (218) is mounted on the free end of the top rotating shaft (216).

5. The differential case end face runout measuring device according to claim 2, characterized in that: A top linear bearing (215) is provided between the main shaft (212) and the base (211).

6. The differential case end face runout measuring device according to claim 1, characterized in that: The bottom of the measuring seat (330) is provided with a measuring pad (310), a linear slide rail pair (320) is provided between the measuring seat (330) and the measuring pad (310), one end of the measuring seat (330) is connected to a quick pressing clamp (350) via a connecting rod (360), and the quick pressing clamp (350) is connected to the measuring pad (310) via a pressing clamp seat (340).

7. A differential case end face runout measuring device according to claim 6, characterized in that: The measuring seat (330) has a measuring limit column (381) on the other side relative to the quick pressing clamp (350), the measuring limit column (381) has a measuring limit seat (380) outside, the measuring limit seat (380) is connected to the measuring cushion block (310), and the measuring limit column (381) contacts or separates from the measuring limit column (381) during the movement of the measuring seat (330).

8. A differential case end face runout measuring device according to claim 7, characterized in that: The measuring transition mechanism (390) comprises a lever (391), the lever (391) presenting a symmetrical bent structure, the middle portion of the lever (391) being hinged to the measuring seat (330) via a hinge shaft, the two ends of the lever (391) respectively comprising a ball probe (392) and a flat probe (393), the ball probe (392) being in contact with a portion to be measured of a workpiece (400) to be measured, and the flat probe (393) being in contact with a portion to be measured of the workpiece (400) to be measured.

9. A differential case end face runout measuring device according to claim 8, characterized in that: The lever (391) has a measuring spring (395) on the opposite side of the ball probe (392), and the other end of the measuring spring (395) is installed in a spring seat (394), and the spring seat (394) is connected to the side of the measuring seat (330).

10. A differential case end face runout measuring device according to claim 9, characterized in that: The lever (391) has a measuring limit pin (397) on the surface opposite to the flat probe (393), and the measuring limit pin (397) is installed on the spring seat (394).

Images