Special mounting machine for spline guide sleeve of steering engine
By designing a special machine for spline guide sleeve installation for steering machines, the problem of inaccurate spline position of the input shaft is solved, an efficient and accurate installation process is achieved, and working efficiency is improved.
Patent Information
- Application Number
- CN202323410783.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2033-12-14
AI Technical Summary
During the assembly process of the steering machine, the coordination between the input shaft guide sleeve and the spline must be correct, otherwise it will lead to the problem that the entire vehicle cannot be assembled, and the prior art is difficult to ensure the accuracy of the spline position of the input shaft.
A special installation machine for the steering machine spline guide sleeve is designed to ensure the accuracy of the input shaft spline position by adjusting the rack to the intermediate position, and then the input shaft guide sleeve is installed to the required position through an electric press.
Through the use of this special aircraft, the accuracy of the input shaft spline position is ensured, and the problem of failure of the vehicle assembly is avoided. The operation is simple, the quality is accurate, and the work efficiency is significantly improved.
Smart Images
Figure CN222626813U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering systems, in particular to a special machine for installing a spline guide sleeve of a steering machine. Background Art
[0002] like Figure 1 As shown in the figure, it is a schematic diagram of the steering gear structure. The input shaft guide sleeve 2 has a full spline inside, which matches the input shaft spline of the steering gear. When assembling, the steering gear rack 3 needs to be adjusted to the middle position first, that is, the distance from the left and right end faces of the rack to the hard limit inside the housing 4 is equal. Figure 2 As shown, distance A is equal to distance B, which ensures that the input shaft spline is in the correct position. On this basis, the spline guide sleeve is installed on the input shaft according to the angle, force and displacement required by the drawing.
[0003] Since the input shaft guide sleeve and the spline must be matched correctly and the teeth cannot be misaligned, otherwise it will cause the whole vehicle to be unable to be assembled. Therefore, the circumferential position of the input shaft and the input shaft guide sleeve needs to be accurately located before installation.
[0004] Therefore, a special machine for installing the steering gear spline guide sleeve is designed to ensure the accuracy of the input shaft spline position by adjusting the rack to the middle position, and then the input shaft guide sleeve is installed to the required position by an electric press. Summary of the invention
[0005] In order to overcome the deficiencies of the prior art, the utility model provides a special machine for installing a steering gear spline guide sleeve, which ensures the accuracy of the input shaft spline position by adjusting the rack to the middle position, and then installs the input shaft guide sleeve to the required position through an electric press.
[0006] In order to achieve the above-mentioned purpose, a special machine for installing a steering gear spline guide sleeve is designed, comprising a special machine base, a conveying mechanism, and a steering gear workpiece positioning pallet, and its characteristics are: a working platform is provided on the special machine base, a conveying mechanism is connected to the working platform, and the conveying mechanism is connected to the steering gear workpiece positioning pallet; a guide sleeve pressing mechanism is provided on the working platform located behind the steering gear workpiece positioning pallet, and a left-side steering gear housing clamping and rack mid-position adjustment mechanism and a right-side steering gear housing clamping and rack mid-position adjustment mechanism are respectively provided on the left and right sides of the guide sleeve pressing mechanism; a lifting mechanism is provided below the steering gear workpiece positioning pallet.
[0007] The right steering gear housing clamping and rack mid-position adjustment mechanism comprises a right bottom plate, a right housing clamping drive unit, a right bottom plate, a right rack adjustment plate, a right rack pushing servo module, a right housing clamping sleeve connecting bracket, and a right housing clamping sleeve. The right bottom plate is provided with a right housing clamping drive unit. The driving end of the right housing clamping drive unit is connected to the back side of the right rack adjustment plate through a slider assembly. The front side of the right rack adjustment plate is connected to the right housing clamping sleeve connecting bracket and the right rack pushing servo module. The right housing clamping sleeve connecting bracket is connected to the right housing clamping sleeve. One end of a right displacement sensor elastic extension rod is provided in the right housing clamping sleeve. The other end of the right displacement sensor elastic extension rod horizontally penetrates the right housing clamping sleeve and is connected to the driving end of the right rack pushing servo module through a connecting piece. A right displacement sensor is provided on one side of the other end of the right displacement sensor elastic extension rod.
[0008] The back side of the right bottom plate is connected to the working platform through a right side up-and-down movable module bracket.
[0009] The left steering gear housing clamping and rack mid-position adjustment mechanism comprises a left bottom plate, a left housing clamping drive unit, a left bottom plate, a left rack adjustment plate, a left rack pushing cylinder, a left housing clamping sleeve connecting bracket, and a left housing clamping sleeve. The left bottom plate is provided with a left housing clamping drive unit. The driving end of the left housing clamping drive unit is connected to the back side of the left rack adjustment plate through a slider assembly. The front side of the left rack adjustment plate is connected to the left housing clamping sleeve connecting bracket and the left rack pushing cylinder. The left housing clamping sleeve connecting bracket is connected to the left housing clamping sleeve. One end of a left displacement sensor elastic extension rod is provided in the left housing clamping sleeve. The other end of the left displacement sensor elastic extension rod laterally penetrates the left housing clamping sleeve and is connected to the driving end of the left rack pushing cylinder through a connecting piece. A left displacement sensor is provided on one side of the other end of the left displacement sensor elastic extension rod.
[0010] The back side of the left bottom plate is connected to the working platform through a left up-and-down movable module bracket.
[0011] The guide sleeve pressing mechanism includes a pressing base plate, a Kistler servo press, an arc-shaped slide rail, a rotary servo drive unit, a sleeve clamping cylinder, and a pressing sleeve. The pressing base plate is provided with an arc-shaped slide rail, which is connected to a press connecting seat via a slider assembly, and the press connecting seat is connected to the Kistler servo press. A pressing sleeve is provided below the pressure head of the Kistler servo press, and the pressing sleeve is connected to the sleeve clamping cylinder; the press connecting seat is connected to the rotary servo drive unit.
[0012] The back side of the press-fit bottom plate is connected to the working platform via a connecting bracket.
[0013] The rotary servo drive unit and the sleeve clamping cylinder are fixedly connected to the press-fit base plate.
[0014] The jacking mechanism comprises a jacking cylinder, one end of which is fixedly connected to the special machine base, and the other end of which extends outwardly through a rod located below the steering machine workpiece positioning tray.
[0015] Compared with the prior art, the utility model provides a special machine for installing a steering gear spline guide sleeve, which ensures the accuracy of the input shaft spline position by adjusting the rack to the middle position, and then installs the input shaft guide sleeve to the required position through an electric press, which is simple to operate, has accurate completion quality, and significantly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the steering gear structure.
[0017] Figure 2 This is a cross-sectional view of the steering gear structure.
[0018] Figure 3 It is a schematic diagram of the structure of the utility model.
[0019] Figure 4 It is a structural schematic diagram of the right steering gear housing clamping and rack center position adjustment mechanism in the utility model.
[0020] Figure 5 for Figure 4 A local enlarged schematic diagram of the .
[0021] Figure 6 for Figure 5 Side view of the structure.
[0022] Figure 7 It is a structural schematic diagram of the left steering gear housing clamping and rack center position adjustment mechanism in the utility model.
[0023] Figure 8 for Figure 7 A local enlarged schematic diagram of the .
[0024] Fig. 9 for Figure 8 Side view of the structure.
[0025] Fig.10 It is a structural schematic diagram of the guide sleeve press-fitting mechanism in the utility model.
[0026] Fig.11 for Fig.10 Schematic diagram of the structure of the medium-pressure sleeve. DETAILED DESCRIPTION
[0027] The utility model is further described below with reference to the accompanying drawings.
[0028] like Figure 3 As shown, a working platform 12 is provided on the special machine base 8, a conveying mechanism 10 is connected to the working platform 12, and a steering gear workpiece positioning pallet 13 is connected to the conveying mechanism 10; a guide sleeve pressing mechanism 11 is provided on the working platform 12 located behind the steering gear workpiece positioning pallet 13, and a left steering gear housing clamping and rack center position adjustment mechanism 6 and a right steering gear housing clamping and rack center position adjustment mechanism 5 are provided on the left and right sides of the guide sleeve pressing mechanism 11 respectively; a lifting mechanism 9 is provided below the steering gear workpiece positioning pallet 13.
[0029] The lifting mechanism 9 includes a lifting cylinder, one end of which is fixedly connected to the special machine base 8, and the other end of the lifting cylinder 9-1 extends out of a rod located below the steering machine workpiece positioning tray 13.
[0030] The entire assembly process is as follows: the steering gear subassembly 1 flows into the workstation → the steering gear workpiece positioning pallet 13 is lifted by the jacking mechanism 9 → the left steering gear housing clamping and rack center position adjustment mechanism 6 and the right steering gear housing clamping and rack center position adjustment mechanism 5 on the left and right sides calculate the hard limit distance between the rack end face and the housing → active end: the right steering gear housing clamping and rack center position adjustment mechanism 5 push the rack 3 according to the measurement result → driven end: the left steering gear housing clamping and rack center position adjustment mechanism 6 push the rack 3 to the active end → complete the rack center position adjustment → manually load the input shaft guide sleeve to the guide sleeve pressing mechanism 11 → Kistler servo press 11-4 pre-presses the input shaft guide sleeve to the middle position → manually rotate the pressing sleeve 11-5 (there is a mechanical limit inside, only used for tooth recognition) to facilitate tooth recognition → Kistler servo press 11-4 presses the input shaft guide sleeve to the target position → all units are reset → completed.
[0031] like Figures 4 to 6As shown, the right steering gear housing clamping and rack mid-position adjustment mechanism 5 includes a right bottom plate, a right housing clamping drive unit, a right bottom plate, a right rack adjustment plate, a right rack pushing servo module, a right housing clamping sleeve connecting bracket, and a right housing clamping sleeve. A right housing clamping drive unit 5-2 is provided on the right bottom plate 5-1. The driving end of the right housing clamping drive unit 5-2 is connected to the back of the right rack adjustment plate 5-3 through a slider assembly. The front of the right rack adjustment plate 5-3 is connected to the right housing clamping sleeve connecting bracket 5-5 and the right rack pushing servo module 5-4. The right housing clamping sleeve connecting bracket 5-5 is connected to the right housing clamping sleeve 5-6. One end of a right displacement sensor elastic extension rod 5-7 is provided in the right housing clamping sleeve 5-6. The other end of the right displacement sensor elastic extension rod 5-7 transversely penetrates the right housing clamping sleeve 5-6 and is connected to the driving end of the right rack pushing servo module 5-4 through a connecting piece. A right displacement sensor 5-8 is provided on one side of the other end of the right displacement sensor elastic extension rod 5-7.
[0032] The back side of the right bottom plate 5 - 1 is connected to the working platform 12 via the right up-and-down movable module bracket 14 .
[0033] The end face of the right shell clamping sleeve 5-6 is the measurement reference and is used to contact the hard limit inside the shell, that is, Figure 2 As shown, the right side reference of the B distance; the right side shell clamping drive unit 5-2 drives the right side shell clamping sleeve 5-6 to move to the left side, so that the end face of the right side shell clamping sleeve 5-6 is in stable contact with the shell, that is, the right side reference of the B distance; the right side displacement sensor elastic extension rod 5-7 is used to contact the rack end face, that is, the left side reference of the B distance, thereby, the distance between the rack end face and the hard limit inside the shell can be measured, and then the right side rack push servo module 5-4 can push the rack to the target position according to the calculated value.
[0034] like Figures 7 to 9As shown, the left steering gear housing clamping and rack mid-position adjustment mechanism 6 includes a left bottom plate, a left housing clamping drive unit, a left bottom plate, a left rack adjustment plate, a left rack pushing cylinder, a left housing clamping sleeve connecting bracket, and a left housing clamping sleeve. A left housing clamping drive unit 6-2 is provided on the left bottom plate 6-1. The driving end of the left housing clamping drive unit 6-2 is connected to the back of the left rack adjustment plate 6-3 through a slider assembly. The front of the left rack adjustment plate 6-3 is connected to the left housing clamping sleeve connecting bracket 6-5 and the left rack pushing cylinder 6-4. The left housing clamping sleeve connecting bracket 6-5 is connected to the left housing clamping sleeve 6-6. One end of a left displacement sensor elastic extension rod 6-7 is provided in the left housing clamping sleeve 6-6. The other end of the left displacement sensor elastic extension rod 6-7 transversely penetrates the left housing clamping sleeve 6-6 and is connected to the driving end of the left rack pushing cylinder 6-4 through a connecting piece. A left displacement sensor 6-8 is provided on one side of the other end of the left displacement sensor elastic extension rod 6-7.
[0035] The back side of the left bottom plate 6 - 1 is connected to the working platform 12 via the left up-and-down movable module bracket 15 .
[0036] The end face of the left shell clamping sleeve 6-6 is the measurement reference and is used to contact the hard limit inside the shell, that is, Figure 2 As shown, the left side reference of distance A; the left side shell clamping drive unit 6-2 drives the left side shell clamping sleeve 6-6 to move to the right side, so that the end face of the left side shell clamping sleeve 6-6 is in stable contact with the shell, that is, the left side reference of distance A; the left side displacement sensor elastic extension rod 6-7 is used to contact the end face of the rack, that is, the right side reference of distance A, thereby, the distance between the end face of the rack and the hard limit inside the shell can be measured, and then the left side rack pushing cylinder 6-4 can push the rack to the right side displacement sensor elastic extension rod 5-7 according to the calculated value.
[0037] According to the above method, it can be measured Figure 2 The distance between A and B in the middle can be converted into the offset of the rack from the middle position according to the distance difference between A and B. Then, the servo module 5-4 is pushed by the right rack to move and control the target position of the rack. Then, the cylinder 6-4 is pushed by the left rack to firmly press the rack against the elastic extension rod 5-7 of the right displacement sensor to adjust the position of the rack. Finally, the same verification method is used to complete the setting of the middle position of the rack.
[0038] like Fig.10 , Fig.11As shown, the guide sleeve pressing mechanism 11 includes a pressing base plate, a Kistler servo press, an arcuate slide rail, a rotary servo drive unit, a sleeve clamping cylinder, and a pressing sleeve. The pressing base plate 11-1 is provided with an arcuate slide rail 11-2, and the arcuate slide rail 11-2 is connected to a press connecting seat 11-3 through a slider assembly, and the press connecting seat 11-3 is connected to a Kistler servo press 11-4. A pressing sleeve 11-5 is provided below the pressure head of the Kistler servo press 11-4, and the pressing sleeve 11-5 is connected to the sleeve clamping cylinder 11-7; the press connecting seat 11-3 is connected to the rotary servo drive unit 11-6.
[0039] The back side of the press-fit bottom plate 11 - 1 is connected to the working platform 12 via a connecting bracket 16 .
[0040] The rotary servo drive unit 11 - 6 and the sleeve clamping cylinder 11 - 7 are fixedly connected to the press-fit base plate 11 - 1 .
[0041] The rotary servo drive unit 11-6 can control the Kistler servo press 11-4 to rotate to a specific angle according to the model of the guide sleeve; the sleeve clamping cylinder 11-7 can quickly change the model of the press sleeve 11-5 according to the model of the guide sleeve. The Kistler servo press 11-4 first performs pre-tightening, and then the operator manually rotates the guide sleeve to complete the tooth recognition process, and finally the guide sleeve is pressed onto the input shaft through the Kistler servo press 11-4.
[0042] Since the input shaft guide sleeve is a plastic part with full spline, during the press-fitting process, the Kistler servo press 11-4100% monitors the press-fitting process curve, and on the other hand, the control of the tooth recognition is also very important. Therefore, the press-fitting sleeve 11-5 is specially designed. Fig.11 As shown, the press-fit sleeve 11-5 allows a buffer space for the inner spline of the input shaft guide sleeve and the outer spline of the input shaft when they come into contact, thereby preventing damage; No. 2 is a circumferential micro-floating mechanism, which allows the inner spline of the input shaft guide sleeve and the outer spline of the input shaft to have a circumferential shake amount for tooth recognition during installation, thereby facilitating tooth recognition assembly.
Claims
1. A special machine for installing a steering machine spline guide sleeve, comprising a special machine base, a conveying mechanism, and a steering machine workpiece positioning tray, characterized in that: A working platform (12) is provided on a special machine base (8), a conveying mechanism (10) is connected to the working platform (12), and a steering gear workpiece positioning tray (13) is connected to the conveying mechanism (10); a guide sleeve pressing mechanism (11) is provided on the working platform (12) behind the steering gear workpiece positioning tray (13), and a left steering gear housing clamping and rack middle position adjustment mechanism (6) and a right steering gear housing clamping and rack middle position adjustment mechanism (5) are respectively provided on the left and right sides of the guide sleeve pressing mechanism (11); and a lifting mechanism (9) is provided below the steering gear workpiece positioning tray (13).
2. The special machine for installing a steering gear spline guide sleeve according to claim 1, characterized in that: The right steering gear housing clamping and rack mid-position adjustment mechanism (5) comprises a right bottom plate, a right housing clamping drive unit, a right bottom plate, a right rack adjustment plate, a right rack pushing servo module, a right housing clamping sleeve connecting bracket, and a right housing clamping sleeve. The right bottom plate (5-1) is provided with a right housing clamping drive unit (5-2). The driving end of the right housing clamping drive unit (5-2) is connected to the back side of the right rack adjustment plate (5-3) through a slider assembly. The front side of the right rack adjustment plate (5-3) is connected to the right housing clamping sleeve connecting bracket (5-5). , a right rack pushing servo module (5-4), a right shell clamping sleeve connecting bracket (5-5) connected to a right shell clamping sleeve (5-6), one end of a right displacement sensor elastic extension rod (5-7) is arranged in the right shell clamping sleeve (5-6), the other end of the right displacement sensor elastic extension rod (5-7) transversely penetrates the right shell clamping sleeve (5-6) and is connected to the driving end of the right rack pushing servo module (5-4) through a connecting piece; a right displacement sensor (5-8) is arranged on one side of the other end of the right displacement sensor elastic extension rod (5-7).
3. The special machine for installing the steering gear spline guide sleeve according to claim 2, characterized in that: The back side of the right bottom plate (5-1) is connected to the working platform (12) via a right up-and-down movable module bracket (14).
4. The special machine for installing a steering gear spline guide sleeve according to claim 1, characterized in that: The left steering gear housing clamping and rack mid-position adjustment mechanism (6) comprises a left bottom plate, a left housing clamping drive unit, a left bottom plate, a left rack adjustment plate, a left rack pushing cylinder, a left housing clamping sleeve connecting bracket, and a left housing clamping sleeve. The left bottom plate (6-1) is provided with a left housing clamping drive unit (6-2). The driving end of the left housing clamping drive unit (6-2) is connected to the back side of the left rack adjustment plate (6-3) through a slider assembly. The front side of the left rack adjustment plate (6-3) is connected to the left housing clamping sleeve connecting bracket (6-5). ), a left rack pushing cylinder (6-4), a left shell clamping sleeve connecting bracket (6-5) is connected to a left shell clamping sleeve (6-6), one end of a left displacement sensor elastic extension rod (6-7) is arranged in the left shell clamping sleeve (6-6), the other end of the left displacement sensor elastic extension rod (6-7) transversely penetrates the left shell clamping sleeve (6-6) and is connected to the driving end of the left rack pushing cylinder (6-4) through a connecting piece; a left displacement sensor (6-8) is arranged on one side of the other end of the left displacement sensor elastic extension rod (6-7).
5. The special machine for installing the steering gear spline guide sleeve according to claim 4, characterized in that: The back side of the left bottom plate (6-1) is connected to the working platform (12) via a left up-and-down movable module bracket (15).
6. The special machine for installing the steering gear spline guide sleeve according to claim 1, characterized in that: The guide sleeve pressing mechanism (11) comprises a pressing base plate, a Kistler servo press, an arcuate slide rail, a rotary servo drive unit, a sleeve clamping cylinder, and a pressing sleeve. The pressing base plate (11-1) is provided with an arcuate slide rail (11-2), the arcuate slide rail (11-2) is connected to a press connecting seat (11-3) via a slider assembly, the press connecting seat (11-3) is connected to a Kistler servo press (11-4), a pressing sleeve (11-5) is provided below the pressure head of the Kistler servo press (11-4), the pressing sleeve (11-5) is connected to the sleeve clamping cylinder (11-7), and the press connecting seat (11-3) is connected to the rotary servo drive unit (11-6).
7. The special machine for installing the steering gear spline guide sleeve according to claim 6, characterized in that: The back side of the press-fit bottom plate (11-1) is connected to the working platform (12) via a connecting bracket (16).
8. The special machine for installing the steering gear spline guide sleeve according to claim 6, characterized in that: The rotary servo drive unit (11-6) and the sleeve clamping cylinder (11-7) are fixedly connected to the press-fit base plate (11-1).
9. The special machine for installing the steering gear spline guide sleeve according to claim 1, characterized in that: The lifting mechanism (9) comprises a lifting cylinder, one end of which is fixedly connected to the special machine base (8), and the other end of which extends outward from the rod and is located below the steering machine workpiece positioning tray (13).