Clamping device for meshing detection of single gear shaft assembly

Abstract

The utility model discloses a single gear shaft assembly meshing detection clamping device, which comprises a bottom frame, a lower shaft system shaft sleeve is arranged on the bottom frame, a lower positioning seat is arranged in the lower shaft system shaft sleeve, an upper connecting shaft is arranged above the lower positioning seat, an upper positioning seat is arranged at the lower end of the upper connecting shaft, and a lower shaft system shaft sleeve is arranged at the lower end of the upper positioning seat. A tested shaft assembly is arranged between the upper positioning seat and the lower positioning seat, the tested shaft assembly is detachably matched with the upper positioning seat and the lower positioning seat, a driving push rod is arranged at one end of the bottom frame, a moving seat is arranged on the bottom frame in a sliding connection mode, the output end of the driving push rod is matched with the moving seat, and a driving tool is arranged on the moving seat. According to the device, the installation state in a box body is simulated in a bearing outer ring positioning and clamping mode after assembly is achieved for the first time, superiority is verified in actual use, and the detection qualification rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction box gear detection, and more particularly to a single-tooth shaft assembly engagement detection clamping device. Background Art

[0002] With the development of society and the strengthening of the industrial system, the automotive products on the market are becoming more and more abundant and the requirements are becoming higher and higher. Among them, new energy vehicles have higher requirements for the NVH of the transmission, and correspondingly higher requirements for the shaft and gear parts in the box. The shaft and gear parts are the main structure of the transmission and need to be tested during production to ensure stable fit between the shaft and gear.

[0003] However, when installing the shaft assembly on the inspected side, the clamping device of the existing shaft gear detection equipment needs to be manually straightened and clamped before releasing, and it cannot be clamped automatically. The operation is relatively troublesome and inconvenient for workers. Moreover, the common clamping device is simple and cannot clamp bearings, and cannot provide a simulated state in the box. It cannot detect the entire assembled shaft assembly, and can only simply detect the quality status of a single shaft tooth, which makes it difficult to control the assembly quality. In addition, the common clamping structure can only use a top clamp to clamp the shaft center hole, and can only perform one type of detection for the shaft tooth meshing detection, and is not compatible with the shaft assembly meshing detection. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the problems existing in the prior art, the present invention provides a single gear shaft assembly engagement detection clamping device to solve the technical problems of the detection device mentioned in the background art, such as the single clamping device effect and insufficient detection quality.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the utility model provides the following technical solutions: a single-tooth shaft assembly engagement detection clamping device, comprising a base frame, a lower shaft system sleeve is provided on the base frame, a lower positioning seat is provided in the lower shaft system sleeve, an upper connecting shaft is provided above the lower positioning seat, an upper positioning seat is provided at the lower end of the upper connecting shaft, a measured shaft assembly is provided between the upper positioning seat and the lower positioning seat, and the measured shaft assembly is detachably matched with the upper positioning seat and the lower positioning seat;

[0008] A driving push rod is provided at one end of the base frame, a moving seat is provided on the base frame in a sliding connection, an output end of the driving push rod cooperates with the moving seat, a driving tool is provided on the moving seat, and a standard gear is provided on the driving tool.

[0009] The present invention is further configured such that a support frame is provided on the base frame 1 , and a lifting drive is provided on the support frame. The lifting drive cooperates with the upper connecting shaft to facilitate the disassembly and assembly of the workpiece.

[0010] The utility model is further configured such that a retaining frame is provided on the inner side of the lower shaft sleeve, and a retaining plate is provided on the upper end of the lower shaft sleeve. The retaining frame and the retaining plate cooperate with the lower positioning seat to reduce the supporting contact surface of the lower positioning seat, reduce rotational friction, and improve rotational accuracy and smoothness.

[0011] The utility model is further configured such that both the retaining frame and the retaining plate are provided with a precision bead shaft system.

[0012] The utility model is further configured such that the outer ends of the lower positioning seat and the upper positioning seat are both provided with positioning sleeves, the positioning sleeves are provided with positioning top screws, the positioning sleeves cooperate with the lower positioning seat through the positioning top screws, the upper ends of the positioning sleeves are provided with a workpiece holding frame, and the upper ends of the workpiece holding frame are provided with an end cover for easy installation.

[0013] The utility model is further configured such that a precision steel ball is provided on the inner side of the workpiece holding frame for anti-backlash installation and positioning to prevent an eccentric error due to excessive backlash during rotation.

[0014] The utility model is further configured such that a hexagon socket head cylindrical screw is provided on the end cover, and the end cover is fixedly connected to the workpiece holding frame through the hexagon socket head cylindrical screw, so that the end cover is fixed.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a single gear shaft assembly engagement detection clamping device, which has the following beneficial effects:

[0017] 1. With the support of the base frame, the detection capability is provided by the cooperation of the lower shaft sleeve and the upper connecting shaft. The lower positioning seat and the upper positioning seat cooperate to realize the positioning and clamping method of the bearing outer ring after assembly, so that the shaft assembly to be tested remains stable during installation and testing. Workers do not need to continuously straighten it. The operation is simple and convenient for testing. The outer ring of the bearing is clamped with a fixture to detect the assembled shaft assembly. At the same time, it is compatible with traditional upper and lower centers.

[0018] 2. By driving the tooling and the standard gear, the standard gear is matched with the shaft assembly to be measured, and by driving the push rod and the moving seat, the standard gear is driven to move for the installation of the shaft assembly to be measured. Therefore, during the inspection, the installation state in the box is simulated. The superiority has been verified in actual use. It can detect the radial runout, radial comprehensive error, radial single-tooth comprehensive error, burrs, bumps or dirt and coaxial runout of the shaft and shaft assembly assembly to ensure the inspection quality.

[0019] 3. After using the device for meshing detection, the quality level control of the shaft gear rotation press-fitting process has been greatly improved, reducing abnormal noise and improving the one-time off-line qualified rate. The one-time off-line qualified rate has been increased from 87% to more than 97%. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front structural diagram of a single-tooth shaft assembly engagement detection clamping device in the present utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the tested shaft assembly and the standard gear in the present utility model;

[0022] Figure 3 This is a side view of the matching structure of the bottom frame, lower positioning seat and upper positioning seat in the utility model.

[0023] In the figure: 1. Base frame; 2. Lower shaft sleeve; 3. Lower locating seat; 4. Upper connecting shaft; 5. Upper locating seat; 6. Measured shaft assembly; 7. Drive push rod; 8. Moving seat; 9. Drive fixture; 10. Standard gear; 11. Support frame; 110. Lifting drive; 12. Cage; 13. Cage; 14. Precision beaded shaft; 15. Locating sleeve; 16. Locating screw; 17. Workpiece holder; 18. End cover; 19. Precision steel ball anti-backlash installation and positioning; 20. Hexagon socket head screw. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0026] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0027] See also Figure 1-3A single-tooth shaft assembly engagement detection clamping device includes a base frame 1, a lower shaft sleeve 2 is provided on the base frame 1, a lower positioning seat 3 is provided in the lower shaft sleeve 2, an upper connecting shaft 4 is provided above the lower positioning seat 3, an upper positioning seat 5 is provided at the lower end of the upper connecting shaft 4, a measured shaft assembly 6 is provided between the upper positioning seat 5 and the lower positioning seat 3, and the measured shaft assembly 6 is detachably matched with the upper positioning seat 5 and the lower positioning seat 3;

[0028] A driving push rod 7 is provided at one end of the base frame 1, and a moving seat 8 is slidably connected to the base frame 1. The output end of the driving push rod 7 cooperates with the moving seat 8. The moving seat 8 is provided with a driving tool 9, and the driving tool 9 is provided with a standard gear 10.

[0029] In this embodiment, the equipment is supported by the base frame 1. When the equipment is used for testing, the upper positioning seat 5 is controlled to rise so that there is enough space between the upper positioning seat 5 and the lower positioning seat 3. Then the measured shaft assembly 6 is installed in the lower positioning seat 3 and positioned by the outer circular structure of the lower positioning seat 3 to ensure the stability of the measured shaft assembly 6. Then the upper positioning seat 5 is lowered and cooperated with the lower positioning seat 3 to clamp the measured shaft assembly 6 for testing. After the test is completed, the upper positioning seat 5 rises and is loosened to facilitate the disassembly of the measured shaft assembly 6.

[0030] More specifically, after the assembly of the measured shaft assembly 6 is completed, when testing is performed, the driving push rod 7 is controlled so that the driving push rod 7 drives the moving seat 8 to move, and the moving seat 8 drives the driving tooling 9 and the standard gear 10 to move toward the measured shaft assembly 6, so that the standard gear 10 cooperates with the measured shaft assembly 6, and power is provided by the driving tooling 9 to rotate the standard gear 10 to test the measured shaft assembly 6, simulating the state of the assembled shaft assembly in the box.

[0031] See also Figure 3 As an implementation method of the upper positioning seat: a support frame 11 is provided on the base frame 1, and a lifting driver 110 is provided on the support frame 11, and the lifting driver 110 cooperates with the upper connecting shaft 4.

[0032] Specifically, through the support of the support frame 11 from the rear end and the control of the lifting driver 110, the upper connecting shaft 4 is operated to move up and down for the installation of the component to be tested.

[0033] Please refer to Figure 1 As a further implementation of the lower shafting sleeve: a retaining frame 12 is provided on the inner side of the lower shafting sleeve 2, and a retaining piece 13 is provided on the upper end of the lower shafting sleeve 2. The retaining frame 12 and the retaining piece 13 cooperate with the lower positioning seat 3.

[0034] Specifically, the lower shafting sleeve 2 is matched with the lower positioning seat 3 through the cooperation of the retaining frame 12 and the retaining sheet 13, thereby ensuring the stability of the lower positioning seat 3 during testing.

[0035] Please refer to Figure 2 As a further implementation of the lower shafting sleeve: a precision bead shafting 14 is provided in both the retaining frame 12 and the retaining plate 13 .

[0036] Specifically, the contact structure is provided by the precision bead shaft system 14 , and when the lower positioning seat 3 rotates, the sliding friction is converted into rolling friction, thereby reducing the friction force.

[0037] Please refer to Figure 1 As a further implementation method of the lower positioning seat: the outer ends of the lower positioning seat 3 and the upper positioning seat 5 are both provided with positioning sleeves 15, and the positioning sleeves 15 are provided with positioning top screws 16. The positioning sleeves 15 cooperate with the lower positioning seat 3 and the upper positioning seat 5 through the positioning top screws 16. The upper end of the positioning sleeve 15 is provided with a workpiece holding frame 17, and the upper end of the workpiece holding frame 17 is provided with an end cover 18.

[0038] Specifically, the mounting structure is provided by positioning the top screw 16, and the retainer 12 is precisely matched with the outer ring of the bearing of the workpiece shaft assembly to play a centering role. The retainer 12 has a certain movable space in the axial direction to ensure that the outer ring of the bearing of the shaft assembly can be installed with a small gap or transition fit. The end cover 18 is provided at the upper end to limit the sliding distance of the retainer 12 and prevent it from falling.

[0039] Please refer to Figure 2 As a further implementation of the lower positioning seat: a precision steel ball anti-backlash installation positioning 19 is provided on the inner side of the workpiece holder 17.

[0040] Specifically, the contact structure is provided by the precision steel ball anti-backlash mounting positioning 19 to ensure that there is no eccentric error caused by a large gap between the workpiece shaft assembly and the clamping device during rotation.

[0041] Please refer to Figure 1 As a further implementation of the upper positioning seat: a hexagon socket head screw 20 is provided on the end cover 18, and is fixedly connected to the workpiece holder 17 through the hexagon socket head screw 20.

[0042] Specifically, the hexagon socket head screws 20 are used for fixing to ensure structural stability.

[0043] In summary, when the overall device is in use (or running):

[0044] When the equipment is in use, the base frame 1 supports the equipment. When the equipment is used for testing, under the support of the support frame 11, the upper connecting shaft 4 is controlled by the lifting driver 110 to move up and down for the installation of the component to be tested, and the upper positioning seat 5 is controlled to rise so that there is enough space between the upper positioning seat 5 and the lower positioning seat 3. Then, the long axis is radially downward so that the measured shaft component 6 is installed in the lower positioning seat 3. The outer circular structure of the lower positioning seat 3 is used to position the measured shaft component 6 to ensure the stability of the measured shaft component 6. Then, the upper positioning seat 5 is lowered and cooperates with the lower positioning seat 3 to clamp the measured shaft component 6 for testing. After the test is completed, the upper positioning seat 5 is raised and loosened to facilitate the disassembly of the measured shaft component 6. When testing, the lower shaft is The shaft sleeve 2 cooperates with the lower positioning seat 3 to ensure that the lower positioning seat 3 is stable during detection, and provides a contact structure through the precision bead shaft system 14 to reduce friction, so that the rotation of the lower positioning seat 3 remains smooth, and provides a contact structure through the precision steel ball anti-backlash installation positioning 19. The retaining frame 12 is precisely matched with the bearing outer ring of the workpiece shaft assembly to play a centering role. The retaining frame 12 has a certain amount of activity space in the axial direction. The bearing outer ring of the shaft assembly can be installed with a small gap or transition fit with the precision steel ball of the workpiece holder to ensure that there will be no eccentric error between the workpiece shaft assembly and the clamping device due to the large gap during rotation. The friction is reduced when the measured shaft assembly 6 rotates. The two-layer friction reduction structure ensures that the measured shaft assembly 6 rotates smoothly, thereby ensuring the detection quality.

[0045] After completing the assembly of the measured shaft assembly 6, when conducting inspection, the driving push rod 7 is controlled to drive the driving push rod 7 to drive the moving seat 8 to move, and the moving seat 8 drives the driving tooling 9 and the standard gear 10 to move toward the measured shaft assembly 6, so that the standard gear 10 cooperates with the measured shaft assembly 6, and the driving tooling 9 provides power to drive the left half of the workpiece shaft assembly to rotate and engage, so that the standard gear 10 rotates to inspect the measured shaft assembly 6, simulating the state of the assembled shaft assembly in the box.

[0046] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A single gear shaft assembly engagement detection clamping device, comprising a base frame (1), characterized by: The base frame (1) is provided with a lower shaft sleeve (2), a lower positioning seat (3) is provided in the lower shaft sleeve (2), an upper connecting shaft (4) is provided above the lower positioning seat (3), an upper positioning seat (5) is provided at the lower end of the upper connecting shaft (4), a measured shaft assembly (6) is provided between the upper positioning seat (5) and the lower positioning seat (3), and the measured shaft assembly (6) is detachably matched with the upper positioning seat (5) and the lower positioning seat (3); A driving push rod (7) is provided at one end of the base frame (1), a moving seat (8) is provided on the base frame (1) in sliding connection, an output end of the driving push rod (7) cooperates with the moving seat (8), a driving tool (9) is provided on the moving seat (8), and a standard gear (10) is provided on the driving tool (9).

2. The single-tooth shaft assembly engagement detection clamping device according to claim 1, characterized in that: A support frame (11) is provided on the base frame (1), a lifting drive (110) is provided on the support frame (11), and the lifting drive (110) cooperates with the upper connecting shaft (4).

3. The single-tooth shaft assembly engagement detection clamping device according to claim 1, characterized in that: A retaining frame (12) is provided on the inner side of the lower shafting sleeve (2), and a retaining plate (13) is provided on the upper end of the lower shafting sleeve (2). The retaining frame (12) and the retaining plate (13) cooperate with the lower positioning seat (3).

4. The single-tooth shaft assembly engagement detection clamping device according to claim 3, characterized in that: The retaining frame (12) and the retaining plate (13) are both provided with a precision bead shaft system (14).

5. The single-tooth shaft assembly engagement detection clamping device according to claim 1, characterized in that: The outer ends of the lower positioning seat (3) and the upper positioning seat (5) are both provided with positioning sleeves (15), the positioning sleeves (15) are provided with positioning top screws (16), the upper ends of the positioning sleeves (15) are provided with a workpiece holding frame (17), and the upper end of the workpiece holding frame (17) is provided with an end cover (18).

6. The single-tooth shaft assembly engagement detection clamping device according to claim 5, characterized in that: A precision steel ball anti-backlash installation positioning device (19) is provided on the inner side of the workpiece holding frame (17).

7. The single-tooth shaft assembly engagement detection clamping device according to claim 1, characterized in that: The end cover (18) is provided with a hexagon socket head screw (20) and is fixedly connected to the workpiece holding frame (17) via the hexagon socket head screw (20).

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