Steering knuckle machining tool
By designing components such as positioning seats, rotating sleeves, and mountain supports on the five-axis machining center, the problem of multiple clamping errors of the steering knuckle on the four-axis bridge plate was solved, achieving higher machining accuracy and efficiency.
Patent Information
- Application Number
- CN202520235917.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-13
AI Technical Summary
In the existing technology, the steering knuckle is prone to errors due to multiple clamping and machining on the four-axle bridge plate, and the machining efficiency is low.
Design a steering knuckle machining fixture that uses a five-axis machining center to fix the steering knuckle and achieves stable positioning and machining of the steering knuckle through components such as a positioning seat, rotating sleeve, wrench and backrest, avoiding multiple clamping errors.
It improves the machining accuracy and stability of the steering knuckle, avoids errors caused by multiple clamping operations on four-axis tooling, and enhances machining efficiency.
Smart Images
Figure CN223734435U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of steering knuckle processing, in particular to a steering knuckle machining device. BACKGROUND
[0002] At present, the steering knuckle produced and processed by the department is an integral forging steering knuckle with half shaft structure, and the drilling process is mainly arranged on the four-axis bridge plate for tightening processing. Because the steering knuckle has space angles in multiple parts, the drilling process needs to be processed on the four-axis bridge plate by using multiple clamps. However, multiple clamping and processing on the four-axis bridge plate can easily produce large errors, and the processing efficiency is low, which needs to be improved. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims at overcoming the defects in the prior art, and provides a steering knuckle machining device, which can fix the steering knuckle with half shaft structure on the five-axis machining center for machining without the aid of complex tooling design, so that the errors caused by multiple clamping on the four-axis tooling are avoided.
[0004] The utility model aims at overcoming the defects in the prior art, and provides a steering knuckle machining device, which can fix the steering knuckle with half shaft structure on the five-axis machining center for machining without the aid of complex tooling design, so that the errors caused by multiple clamping on the four-axis tooling are avoided.
[0005] The steering knuckle product is provided with a half shaft and a support arm, and a nut is pre-installed at the bottom of the half shaft.
[0006] The positioning seat is arranged at the middle part of the tooling bottom plate, a center hole is formed in the positioning seat for the half shaft to pass through, and a notch is formed at the bottom of the positioning seat.
[0007] The rotating sleeve is rotationally arranged in the notch and aligned with the center hole, a positioning hole for positioning the nut is formed in the center of the rotating sleeve, and a plurality of insertion holes are formed in the outer wall of the rotating sleeve in the radial direction.
[0008] The wrench is used for penetrating through the notch and being inserted into one of the insertion holes to drive the rotating sleeve to rotate, so that the nut is tightened.
[0009] The backing seat is fixedly arranged on the tooling bottom plate and used for positioning and supporting the support arm.
[0010] As a further technical scheme, the tooling limiting plate is installed on the bottom of the tooling bottom plate through the connecting bolt B, the tooling bottom plate is fixed on the machining table surface through the tooling limiting plate, and the tooling limiting plate is coaxial with the positioning seat.
[0011] As a further technical scheme, the positioning groove is formed in the upper surface of the tooling bottom plate, the fixing hole is formed in the positioning seat in the penetrating mode, and the positioning groove is fixed through the connecting bolt A.
[0012] As a further technical scheme, the shaft shoulder is arranged at the connection position between the half shaft and the steering knuckle product, and the shaft shoulder is flush with the upper end surface of the positioning seat when the nut is embedded in the positioning hole.
[0013] As a further technical solution, the half shaft and the center hole adopt a clearance fit.
[0014] As a further technical solution, a pressing plate is further included for being inserted into the gap and being pressed between the nut and the positioning seat, a step is formed on the pressing plate for positioning the half shaft.
[0015] As a further technical solution, the insertion holes are uniformly distributed along the circumferential direction of the outer wall of the rotating sleeve, and the maximum angle of each rotation of the rotating sleeve is 120°.
[0016] As a further technical solution, the positioning hole adopts a hexagon matched with the nut.
[0017] As a further technical solution, the abutment seat is fixed with the tool bottom plate through the connecting bolt C, and two positioning arms are arranged on the top of the abutment seat, and the support arm is positioned between the two positioning arms.
[0018] The beneficial effects of the utility model are as follows:
[0019] 1. The knuckle product is positioned through the contact of the shaft shoulder and the positioning seat, and is further positioned through the support arm and the abutment seat, so that the positioning precision of the knuckle product is ensured, the knuckle product is prevented from rotating during the tightening process of the nut, and the knuckle product is prevented from shaking during the machining process, and the stability is improved.
[0020] 2. The tool limiting plate, the tool bottom plate and the positioning seat are coaxial, the machining precision is higher, and the error caused by multiple clamping on the four-axis tool is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is an explosion structure schematic view of the utility model.
[0022] Figure 2 It is a structure schematic view of the utility model after assembly.
[0023] Figure 3 It is a sectional structure schematic view of the utility model.
[0024] Figure 4 It is a structure schematic view of the knuckle product and the nut before tightening in the utility model.
[0025] Figure 5 It is a structure schematic view of the knuckle product and the nut after tightening in the utility model.
[0026] Figure 6 It is a structure schematic view of the nut and the rotating sleeve assembly in the utility model.
[0027] Figure 7 It is a structure schematic view of the positioning seat and the rotating sleeve assembly in the utility model.
[0028] Explanation of reference numerals in the attached drawings: 1. Tooling limit plate; 2. Tooling base plate; 21. Positioning groove; 3. Wrench; 4. Clamping plate; 41. Step; 5. Positioning seat; 5. Center hole; 51. Notch; 52. Fixing hole; 53. Steering knuckle; 6. Half shaft; 61. Shaft shoulder; 62. Support arm; 63. Connecting bolt A; 7. Rotating sleeve; 8. Insertion hole; 81. Positioning hole; 82. Connecting bolt B; 9. Nut; 10. Backrest seat; 11. Connecting bolt C; 12. Positioning arm; 13. Detailed Implementation
[0029] The present invention will now be described in detail with reference to the accompanying drawings:
[0030] Example: As attached Figures 1-7 As shown, this steering knuckle machining fixture includes a tooling limit plate 1, a tooling base plate 2, a positioning groove 21, a wrench 3, a clamping plate 4, a step 41, a positioning seat 5, a center hole 51, a notch 52, a fixing hole 53, a steering knuckle product 6, a half shaft 61, a shaft shoulder 62, a support arm 63, a connecting bolt A7, a rotating sleeve 8, a insertion hole 81, a positioning hole 82, a connecting bolt B9, a nut 10, a backrest 11, a connecting bolt C12, and a positioning arm 13.
[0031] Reference Appendix Figure 4 , 5 The steering knuckle product 6 is equipped with a half-shaft 61 and a control arm 63, and a nut 10 is pre-installed at the bottom of the half-shaft 61. For example... Figure 1 , 2 As shown, the positioning seat 5 is set in the middle of the tooling base plate 2, and a positioning groove 21 is formed on the upper surface of the tooling base plate 2, as shown. Figure 7 As shown, three fixing holes 53 are formed through the positioning seat 5, and the fixing holes 53 are fixed to the positioning groove 21 by connecting bolts A7. A center hole 51 is formed in the center of the positioning seat 5, through which the half shaft 61 can pass. In addition, a notch 52 is formed on one side of the bottom of the positioning seat 5. The rotating sleeve 8 is rotated and placed in the notch 52, aligned with the center hole 51. A positioning hole 82 (capable of positioning the nut 10) is formed in the center of the rotating sleeve 8. The positioning hole 82 is a hexagonal hole that matches the outer contour of the nut 10. Six insertion holes 81 are formed radially on the outer wall of the rotating sleeve 8 (six in this embodiment, but other numbers are also possible). The insertion holes 81 are evenly distributed along the circumference of the outer wall of the rotating sleeve 8. A wrench 3 is inserted into one of the insertion holes 81 through the notch 52 to drive the rotating sleeve 8 to rotate, thereby tightening the nut 10. Preferably, the maximum angle of rotation of the rotating sleeve 8 is 120° each time.
[0032] Furthermore, such as Figure 4 , 5As shown, a shaft shoulder 62 is arranged at the joint of the half shaft 61 and the knuckle product 6, and the shaft shoulder 62 is flush with the upper end surface of the positioning seat 5 when the nut 10 is embedded into the positioning hole 82, preferably, the half shaft 61 is in clearance fit with the center hole 51. Preferably, a pressing plate 4 is also inserted into the notch 52, the pressing plate 4 is pressed between the nut 10 and the positioning seat 5, and a step 41 is arranged on the pressing plate 4, and the lower end of the half shaft 61 is positioned by the step 41.
[0033] As shown in the drawings, Figure 1 , 3 The bottom of the tool base plate 2 is provided with a tool limiting plate 1 through connecting bolts B9, the tool base plate 2 is fixed on the machining table by the tool limiting plate 1, and the tool limiting plate 1 is coaxial with the positioning seat 5.
[0034] As shown in the drawings, Figure 1 , 2 The abutment seat 11 is fixed with the tool base plate 2 through connecting bolts C12, two positioning arms 13 are arranged on the top of the abutment seat 11, and the two supporting arms 63 of the knuckle product 6 are positioned between the two positioning arms 13.
[0035] The working process of the utility model is as follows:
[0036] 1. As shown in the drawings, Figure 4 , 5 First, the nut 10 is pre-screwed to the lower part of the half shaft 61 of the knuckle product 6, and 3-4 threads are not screwed;
[0037] 2. The knuckle product 6 with the nut 10 is inserted through the positioning seat 5, the half shaft 61 is inserted through the center hole 51, the nut 10 is positioned to the rotating sleeve 8 (the positioning hole 82), the shaft shoulder 62 of the knuckle product 6 is flush with the upper end surface of the positioning seat 5, and the knuckle product 6 (the half shaft 61) is in clearance fit with the center hole 51 of the positioning seat 5.
[0038] 3. As shown in the drawings, Figure 1 The pressing plate 4 is inserted between the lower end surface of the positioning seat 5 (i.e. the notch 52) and the nut 10, the pressing plate 4 is stepped, the upper end surface of the pressing plate 4 is flush with the lower end surface of the positioning seat 5, and the lower end surface of the pressing plate 4 is flush with the upper end surface of the nut 10.
[0039] 4. The nut 10 is tightened to the knuckle product 6 by inserting the wrench 3 into the insertion hole 81 of the rotating sleeve 8 and segmentally driving the rotating sleeve 8, and the maximum angle of each rotation of the rotating sleeve 8 is 120°.
[0040] It can be understood that equivalent replacement or change of the technical scheme and the utility model concept of the utility model by those skilled in the art shall belong to the protection range of the claims attached to the utility model.
Claims
1. A knuckle machining assembly, characterized by, The utility model relates to a kind of knuckle product (6), half shaft (61) and branch (63) are arranged on it, half shaft (61) bottom pre-installation nut (10); Positioning seat (5) is arranged in the middle of tooling bottom plate (2), center hole (51) is opened in positioning seat (5), for half shaft (61) to pass through, the bottom of positioning seat (5) is opened gap (52); Rotary sleeve (8) is rotationally arranged in gap (52) and is aligned with center hole (51), positioning hole (82) for positioning nut (10) is opened in the center of rotary sleeve (8), a plurality of insertion holes (81) are opened in the radial direction on the outer wall of rotary sleeve (8); Spanner (3) is used to pass through gap (52) and is inserted into one of insertion holes (81), to drive rotary sleeve (8) rotation, so as to tighten nut (10);And Relying on seat (11) is fixed on tooling bottom plate (2), for positioning, supporting branch (63). The bottom of tooling bottom plate (2) is installed tooling limiting plate (1) by connecting bolt B (9), tooling bottom plate (2) is fixed on machining table surface by tooling limiting plate (1), tooling limiting plate (1) is coaxial with positioning seat (5).
2. The knuckle machining assembly of claim 1, wherein: Positioning groove (21) is opened on the upper surface of tooling bottom plate (2), fixed hole (53) is opened through positioning seat (5), and is fixed with positioning groove (21) by connecting bolt A (7).
3. The knuckle machining assembly of claim 1, wherein: The shoulder (62) is provided at the connecting portion of half shaft (61) and knuckle product (6), when nut (10) is embedded in positioning hole (82), the shoulder (62) is flat with the upper end surface of positioning seat (5).
4. The knuckle machining assembly of claim 1, wherein: Half shaft (61) and center hole (51) adopt clearance fit.
5. The knuckle machining assembly of claim 1, wherein: It also includes compression plate (4), for inserting into gap (52), and is compressed between nut (10) and positioning seat (5), step (41) is opened on compression plate (4), for positioning half shaft (61).
6. The knuckle machining assembly of claim 1, wherein: Insertion hole (81) is uniformly distributed along the circumferential direction of the outer wall of rotary sleeve (8), and the maximum angle of rotary sleeve (8) is 120 ° each time.
7. The knuckle machining assembly of claim 1, wherein: Positioning hole (82) adopts hexagon matched with nut.
8. The knuckle machining assembly of claim 1, wherein: The relying on seat (11) is fixed with tooling bottom plate (2) by connecting bolt C (12), and two positioning arms (13) are arranged on the top of relying on seat (11), and branch (63) is positioned between two positioning arms (13).
9. The knuckle machining assembly of claim 1, wherein: