Worm and gear rolling adjusting mechanism

Abstract

A worm and gear rolling adjusting mechanism comprises a loading device, a positioning device and a loading device, a servo motor of the loading device is in clearance fit with a coupler through a shaft hole and then is tightened and fixed through a bolt, the two ends of a torque sensor are in clearance fit with the shaft hole of the coupler and are fixed through a bolt, and an optical shaft is fixed to a supporting bearing seat through a shaft hole. The supporting bearing seat is in clearance fit with the coupling shaft hole; the other end of the optical shaft is matched and fixed with the connecting assistive device shaft hole; a magnetic powder brake of the load device is in clearance fit and fixed with a shaft hole of a coupler, the other end of the coupler is in clearance fit and fixed with a shaft hole of a second torque sensor, the other end of the second torque sensor is connected with a second supporting bearing seat through the coupler, the second supporting bearing seat is matched with a shaft hole of an optical shaft, and the other end of the optical shaft is matched and fixed with two connecting spline shaft holes. The positioning device is used for fixing workpieces. According to the utility model, the worm gear and the worm can be automatically adjusted, and friction force is reduced.

Description

Technical Field

[0001] The utility model belongs to an automobile steering gear, in particular to a worm gear rolling adjustment mechanism. Background Art

[0002] iRCB steering gear is a new type of steering gear with very high requirements for friction and friction fluctuation. After the iRCB steering gear is assembled with worm gear, the meshing of worm gear will produce large friction and friction fluctuation, which will cause the friction and friction fluctuation to exceed the tolerance and fail to meet customer requirements. Therefore, the friction and friction fluctuation of the product must meet the standards. It is necessary to ensure that the friction and friction fluctuation meet the standards, otherwise it will affect customer satisfaction with the product. Summary of the invention

[0003] The purpose of the utility model is to provide a worm gear rolling adjustment mechanism, which can automatically adjust the worm gear, thereby reducing the friction and friction fluctuation generated by the meshing of the worm gear, and effectively preventing the friction and friction fluctuation generated by the worm gear after assembly, resulting in the occurrence of unqualified overall friction and friction fluctuation of the product.

[0004] To achieve the above purpose, the technical solution of the utility model is:

[0005] A worm gear rolling adjustment mechanism, comprising a loading device, a positioning device, and a load device, wherein the loading device, the positioning device, and the load device are independently fixedly mounted on a bed, and characterized in that: the loading device comprises a servo motor, a coupling, a torque sensor, a support bearing seat, and a connection auxiliary tool, the servo motor and the coupling are matched through a shaft hole clearance, and then tightened and fixed by bolts, the two ends of the torque sensor are matched with the shaft hole clearance of the coupling, and are fixed by bolts, the optical axis is fixed on the support bearing seat through the shaft hole, the support bearing seat and the shaft hole of the coupling are matched with the clearance, and the other end of the optical axis is matched with the shaft hole of the connection auxiliary tool and fixed;

[0006] The load device includes a magnetic powder brake, a coupling, a torque sensor, a support bearing seat, a second optical shaft, and a connecting spline. The magnetic powder brake is matched and fixed with the coupling shaft hole clearance. The other end of the coupling is matched and fixed with the torque sensor second shaft hole. The other end of the torque sensor second is connected to the support bearing seat two through the coupling. The support bearing seat two is matched with the optical shaft hole. The other end of the optical shaft is matched and fixed with two connecting spline shaft holes.

[0007] The positioning device is used to fix the workpiece.

[0008] The positioning device includes a fixed quick clamp, a vertical plate, a base, and a bottom plate. The bottom plate and the base are fixed by bolts. Two fixed quick clamps are fixed on the bottom plate. A vertical plate is provided on one side of the base and is fixed to the bottom plate by bolts.

[0009] The positive effect of the utility model is that the utility model designs the loading device, the positioning device and the load device into an integrated type to form a worm gear rolling adjustment mechanism, which can simply and quickly adjust the worm gear, thereby reducing the friction force and friction force fluctuation of the worm gear meshing and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 is a schematic diagram of the loading device structure;

[0012] Figure 3 is a schematic diagram of the load device structure;

[0013] Figure 4 It is a schematic diagram of the positioning device structure. DETAILED DESCRIPTION

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] See also Figure 1 The utility model comprises a loading device 1, a positioning device 2, and a load device 3, and these devices are fixedly mounted on a bed 4 to form a set of adjustment structures.

[0016] See also Figure 2 , loading device 1, including servo motor 5; coupling 1 6; torque sensor 7; coupling 2 8; support bearing seat 9; optical axis 10; coupling 3 11; connecting aid 12; servo motor 5 and coupling 1 6 are matched through shaft hole clearance, and then are tightened and fixed with bolts on coupling 1 6; coupling 1 6 and torque sensor 7 are matched through shaft hole clearance, and then are tightened and fixed with bolts, the other end of torque sensor 7 is matched with coupling 2 8 through shaft hole clearance, and is tightened and fixed with bolts; support bearing seat 9 and optical axis 10 are matched through shaft hole clearance, coupling 2 8 and optical axis 10 shaft hole clearance are matched, and are tightened and fixed with bolts; coupling 3 11 and optical axis 10 are matched through shaft hole clearance, coupling 3 11 and connecting aid 12 are matched through shaft hole clearance and are fixed with bolts.

[0017] See also Figure 3The load device 3 includes a magnetic powder brake 13, a coupling four 14, a torque sensor two 15, a coupling five 16, a support bearing seat two 17, an optical shaft two 18, a connecting spline one 19, and a connecting spline two 20; the magnetic powder brake 13 and the coupling four 14 have a shaft hole gap and are fixed with bolts, the coupling four 14 matches with the shaft hole of the torque sensor two 15, the other end of the torque sensor two 15 matches with the coupling five 16 through the shaft hole gap and is fixed with bolts, the support bearing seat two 17 and the optical shaft two 18 have a shaft hole gap, the optical shaft two 18 matches with the shaft hole of the connecting spline one 19, and the connecting spline one 19 matches with the connecting spline two 20 through the shaft hole and is fixed with bolts.

[0018] See also Figure 4 The positioning device 2 includes a fixed quick clamp 21, a vertical plate 22, a base 23, and a bottom plate 24. The bottom plate 22 and the base 23 are fastened and fixed by bolts. Two fixed quick clamps 21 are fixed on the bottom plate 22 by bolts. The vertical plate 22 is fixed to the bottom plate 22 and one side of the base 23 by bolts.

[0019] When using this product, first manually place the workpiece with adjustment on the base 23 of the positioning device 2, and use the fixed quick clamp 21 to fix the product; connect the connecting aid 12 to the worm of the workpiece to be inspected, and connect the connecting spline 20 to the worm wheel of the workpiece to be inspected. Then start the device, the servo motor 5 starts to generate torque to drive the coupling, the coupling drives the torque sensor and collects the torque value, the sensor drives the coupling, the coupling drives the optical axis, the optical axis drives the connecting aid 12, and thus drives the product worm to rotate. The magnetic powder brake 13 provides the required load, transfers the load to the coupling, passes through the torque sensor and collects the torque value, and finally transfers the load to the product worm wheel through the connecting spline; the loading device and the load device repeat the movement until the set angle is reached.

[0020] The utility model can automatically complete the adjustment of the worm gear and the worm, thereby improving product quality.

Claims

1. A worm gear rolling adjustment mechanism, comprising a loading device, a positioning device, and a load device, wherein the loading device, the positioning device, and the load device are independently fixedly mounted on a bed, characterized in that: The loading device includes a servo motor, a coupling, a torque sensor, a support bearing seat, and a connection auxiliary tool. The servo motor and the coupling are matched through the shaft hole clearance and then tightened and fixed by bolts. The two ends of the torque sensor are matched with the shaft hole clearance of the coupling and fixed by bolts. The optical axis is fixed on the support bearing seat through the shaft hole. The support bearing seat and the shaft hole clearance of the coupling are matched. The other end of the optical axis is matched with the shaft hole of the connection auxiliary tool and fixed. The load device includes a magnetic powder brake, a coupling, a torque sensor, a support bearing seat, a second optical shaft, and a connecting spline. The magnetic powder brake is matched and fixed with the coupling shaft hole clearance. The other end of the coupling is matched and fixed with the torque sensor second shaft hole. The other end of the torque sensor second is connected to the support bearing seat two through the coupling. The support bearing seat two is matched with the optical shaft hole. The other end of the optical shaft is matched and fixed with two connecting spline shaft holes. The positioning device is used to fix the workpiece.

2. A worm gear rolling adjustment mechanism according to claim 1, characterized in that: The positioning device includes a fixed quick clamp, a vertical plate, a base, and a bottom plate. The bottom plate and the base are fixed by bolts. Two fixed quick clamps are fixed on the bottom plate. A vertical plate is provided on one side of the base and is fixed to the bottom plate by bolts.

Images