Complete set of rear knuckle machining tool

Abstract

The utility model discloses a whole set of rear knuckle machining tool which comprises a horizontal fixing plate, vertical fixing plates are fixed to the left portion and the right portion of the top face of the horizontal fixing plate respectively, and side clamping devices used for clamping a left rear knuckle and a right rear knuckle are installed on the opposite wall faces of the two vertical fixing plates respectively. A side through groove for machining is formed in the horizontal fixing plate corresponding to the side extending part of the left rear steering knuckle or the right rear steering knuckle clamped on the side clamping device. Two left rear steering knuckles and two right rear steering knuckles can be clamped at a time, the top face parts of the left rear steering knuckles and the top face parts of the right rear steering knuckles in the middle can be machined at a time, and the side extending parts of the left rear steering knuckles and the side extending parts of the right rear steering knuckles on the side portions can be machined at a time. Machining of the top face part or the side extending part of the corresponding rear steering knuckle is achieved, the machining efficiency is greatly improved, and the disassembly and assembly time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal processing equipment technical field more specifically, and more specifically relates to a whole rear knuckle processing frock. BACKGROUND

[0002] In the existing automobile parts, such as rear knuckle, a whole rear knuckle generally includes two corresponding rear knuckles, when processing, the general frock clamp can only install one rear knuckle for processing, and because the rear knuckle needs to mill the end face of the corresponding part on its top surface, drill the top surface, and also drill or mill the end face of its side surface, the existing frock can only process the single process of its top or side, for example, one frock can only horizontally clamp and fix the rear knuckle, process its top surface, after processing, the rear knuckle needs to be disassembled and installed on another frock of the machining center for side clamping and fixing, then, process its side extension, which needs to be processed in two machining centers, and only one process of a single rear knuckle can be processed at a time, the efficiency is very low, and the effect is poor. UTILITY MODEL CONTENTS

[0003] The utility model aims at overcoming the insufficient of prior art, and provides a whole rear knuckle processing frock, it can clamp two left rear knuckles and two right rear knuckles at a time, can process the top surface part of two middle left rear knuckles and right rear knuckles at a time, process the side extension part of two left rear knuckles and right rear knuckles, realize the processing of the top surface part or side extension part of corresponding rear knuckle, greatly improve the processing efficiency, and reduce the disassembly time.

[0004] The utility model solves the technical problem by the following scheme:

[0005] A whole rear knuckle processing frock, including horizontal fixed plate, the left part and the right part of the top surface of horizontal fixed plate are all fixed with vertical fixed plate, the opposite wall surface of two vertical fixed plates is respectively installed with the side clamping device for clamping left rear knuckle and right rear knuckle;

[0006] The side extension part of left rear knuckle or right rear knuckle clamped on the side clamping device is formed with processing side through groove on the corresponding horizontal fixed plate;

[0007] The front part and the rear part of the middle top surface of horizontal fixed plate are all fixed with the middle clamping device for clamping left rear knuckle or right rear knuckle;

[0008] The horizontal fixed plate on the right side of the top of left rear knuckle or right rear knuckle clamped on the middle clamping device is formed with first to-be-processed through groove.

[0009] The left rear knuckle and the right rear knuckle clamped on the two middle clamping devices are both formed with a radially extending connecting part on the side close to each other, and a center through groove is formed on the horizontal fixing plate below the connecting part.

[0010] The left side and the right side of the horizontal fixing plate are both fixed with an outer connecting plate, and a connecting rotating shaft is fixed on the outer side wall of the outer connecting plate.

[0011] The middle clamping device comprises a first lever oil cylinder fixed on the left side of the horizontal fixing plate of the center through groove, and a second lever oil cylinder fixed on the outer side of the horizontal fixing plate of the right side of the center through groove.

[0012] The middle clamping device of the front part further comprises a third lever oil cylinder fixed on the middle part of the horizontal fixing plate of the front part, and the middle clamping device of the rear part comprises a third lever oil cylinder fixed on the middle part of the horizontal fixing plate of the rear part.

[0013] A first positioning pin is fixed on the top surface of the horizontal fixing plate below the end of the pressing block of the first lever oil cylinder, the top surface of the first positioning pin is a spherical surface, which corresponds to a first positioning concave hole formed on the left side bottom surface of the left rear knuckle or the right rear knuckle, the top of the first positioning pin extends into the corresponding first positioning concave hole, and the top surface of the first positioning pin is pressed against the top surface of the first positioning concave hole.

[0014] A second positioning pin is fixed on the top surface of the horizontal fixing plate below the end of the pressing block of the second lever oil cylinder, the top surface of the second positioning pin is a spherical surface, which corresponds to a waist-shaped positioning concave hole formed on the right side bottom surface of the left rear knuckle or the right rear knuckle, the top of the second positioning pin extends into the corresponding waist-shaped positioning concave hole, and the top surface of the second positioning pin is pressed against the top surface of the waist-shaped positioning concave hole.

[0015] A positioning support seat is fixed on the top surface of the horizontal fixing plate corresponding to the bottom surface of the end of the pressing block of the third lever oil cylinder.

[0016] The protruding effect of the utility model is:

[0017] It can clamp two left rear knuckles and two right rear knuckles at a time, can process the top surface part of two middle left rear knuckles and right rear knuckles at a time, and can process the side extension part of two left rear knuckles and right rear knuckles on the side part, realize the processing of the top surface part or the side extension part of the corresponding rear knuckle, greatly improve the processing efficiency, and reduce the disassembly time. DRAWINGS:

[0018] Figure 1 It is a local structure schematic view of the utility model for installing and fixing the rotating support frame.

[0019] Figure 2 It is a local plan view of the utility model.

[0020] Figure 3 This is a partial bottom view of the present invention;

[0021] Figure 4 This is a partial structural diagram of the angle-changing part of this utility model;

[0022] Figure 5 yes Figure 4 A schematic diagram of the local structure from a different angle;

[0023] Figure 6 yes Figure 4 Another schematic diagram of a local structure from a different angle;

[0024] Figure 7 This is a partial structural diagram of the positioning support base;

[0025] Figure 8 This is a partial structural diagram of the left or right rear steering knuckle;

[0026] Figure 9 yes Figure 4 A magnified view of a portion of the image. Detailed implementation method:

[0027] For example, see below. Figures 1 to 9 As shown ( Figure 1 , Figure 2 The left rear steering knuckle at the front of the middle part is a picture of the completed machining, and the right rear steering knuckle at the rear part is a picture of the unmachined machining. A complete set of rear steering knuckle machining fixtures includes a horizontal fixing plate 10. Vertical fixing plates 11 are fixed on the left and right parts of the top surface of the horizontal fixing plate 10. Side clamping devices 20 for clamping the left rear steering knuckle and the right rear steering knuckle are respectively installed on the opposite wall surfaces of the two vertical fixing plates 11.

[0028] The left or right rear steering knuckle held by the side clamping device 20 has a side extension 101 formed at the front and rear, and a side through groove 120 for processing is formed on the horizontal fixing plate 10 corresponding to the side extension 101.

[0029] The horizontal fixing plate 10 has a central clamping device 30 fixed at both the front and rear of the top surface of the middle section for clamping the left rear steering knuckle or the right rear steering knuckle.

[0030] The two central clamping devices 30 are mirror-symmetrically arranged with the central vertical plane extending to the left and right of the top surface of the horizontal fixing plate 10 as the center.

[0031] Furthermore, a first through groove 12 is formed on the horizontal fixing plate 10 directly below the extension 102 extending from the top left side of the left or right rear steering knuckle held by the central clamping device 30.

[0032] Further, the left rear knuckle and the right rear knuckle clamped by the two middle clamping devices 30 are formed with a radially extending connecting part 103 on the side close to each other, and a central through slot 13 is formed on the lower horizontal fixed plate 10 corresponding to the connecting part 103.

[0033] Further, the left side and the right side of the horizontal fixed plate 10 are fixed with an outer connecting plate 14, and a connecting rotating shaft 141 is fixed on the outer side wall of the outer connecting plate 14.

[0034] The connecting rotating shaft 141 on one side is movably connected to the connecting seat fixed on the left side top surface of the fixed plate of the rotary support frame through a bearing, a rotary reduction box is fixed on the right side top surface of the fixed plate of the rotary support frame, a driving motor is fixed on the outer side wall of the rotary reduction box, the output shaft of the driving motor is connected with the input shaft of the rotary reduction box, and the output shaft of the rotary reduction box is connected with the connecting rotating shaft 141 on the right side. The driving motor can be operated to realize the overturning of the horizontal fixed plate 10 by 180 degrees, so that the bottom surface of the left rear knuckle and the right rear knuckle can be machined.

[0035] Further, the middle clamping device 30 comprises a first lever oil cylinder 31 fixed on the left side of the horizontal fixed plate 10 of the central through slot 13, and a second lever oil cylinder 32 fixed on the outer side of the horizontal fixed plate 10 of the right side of the central through slot 13.

[0036] The front middle clamping device 30 further comprises a third lever oil cylinder 33 fixed on the front part of the middle part of the horizontal fixed plate 10, and the rear middle clamping device 30 comprises a third lever oil cylinder 33 fixed on the rear part of the middle part of the horizontal fixed plate 10.

[0037] A first positioning pin 1 is fixed on the top surface of the horizontal fixed plate 10 directly below the end of the pressing block of the first lever oil cylinder 31, the top surface of the first positioning pin 1 is spherical, corresponds to the first positioning recess hole 104 formed on the left side bottom surface of the left rear knuckle or the right rear knuckle, the top of the first positioning pin 1 extends into the corresponding first positioning recess hole 104, and the top surface of the first positioning pin 1 is pressed against the top surface of the first positioning recess hole 104.

[0038] Further, a second positioning pin 2 is fixed on the top surface of the horizontal fixed plate 10 directly below the end of the pressing block of the second lever oil cylinder 32, the top surface of the second positioning pin 2 is spherical, corresponds to the waist-shaped positioning recess hole 105 formed on the right side bottom surface of the left rear knuckle or the right rear knuckle, the top of the second positioning pin 2 extends into the corresponding waist-shaped positioning recess hole 105, and the top surface of the second positioning pin 2 is pressed against the top surface of the waist-shaped positioning recess hole 105.

[0039] Further, the bottom surface of the end of the pressing block of the third lever oil cylinder 33 is fixed with a positioning support seat 15 on the top surface of the horizontal fixing plate 10, and the middle part of the top surface of the positioning support seat 15 is formed with an upward extending protruding column 151, and the top surface of the protruding column 151 corresponds to the bottom surface of the end of the pressing block of the third lever oil cylinder 33.

[0040] The middle part of the top surface of the protruding column 151 of the positioning support seat 15 is formed with a downward extending middle stepped through hole, the upper part of which is a small diameter hole section, and the lower part of which is a large diameter hole section, a detection rod 152 is inserted into the small diameter hole section, the outer side wall of the detection rod 152 is tightly attached to the inner side wall of the small diameter hole section, the top end of the detection rod 152 extends out of the top surface of the protruding column 151, a radial extending edge is formed on the bottom end outer side wall of the detection rod 152, and the radial extending edge is located in the large diameter hole section, a buffer spring is inserted into the large diameter hole section, the bottom end of the buffer spring is forced against the top surface of the horizontal fixing plate 10, and the top end of the buffer spring is forced against the bottom surface of the radial extending edge, the top surface of the radial extending edge is pressed against the top surface of the large diameter hole section, wherein a notch is formed at one side of the top surface of the radial extending edge, and the top surface of the notch is spaced apart from the top surface of the large diameter hole section, an annular groove is formed on the lower part of the outer side wall of the detection rod 152, an air outlet through hole is formed on the side wall of the small diameter hole section corresponding to the annular groove, a sealing ring is embedded in the annular groove formed on the middle part of the outer side wall of the detection rod 152, the outer wall surface of the sealing ring is pressed against the middle part of the inner side wall of the small diameter hole section, the bottom end of the middle stepped through hole is communicated with a downward extending air inlet hole formed on the top surface of the horizontal fixing plate 10, and the air inlet hole is communicated with a side through hole formed on the side wall of the horizontal fixing plate 10.

[0041] In use, the side through hole is communicated with the electromagnetic valve of the air pump through a connecting pipe, and a pressure sensor is installed on the connecting pipe, in use, the electromagnetic valve is opened to realize air ventilation, and the gas can be discharged from the air outlet through hole, when the corresponding rear knuckle is pressed against the top surface of the detection rod 152 and is compressed back into the small diameter hole section, at this time, the annular groove of the detection rod 152 is not aligned with the air outlet through hole, and the outer side wall is tightly attached to the inner side wall of the small diameter hole section, so that the gas cannot be basically discharged from the air outlet through hole, at this time, the pressure sensor will sense the pressure change, and will transmit the sensing signal to the electrically connected control host (all oil cylinders of the embodiment are connected with the hydraulic system through the connecting pipe, and the hydraulic system, the pneumatic system and all other electrical components are electrically connected with the control host, and are controlled to operate through the control host, which are all conventional structures and will not be described in detail here), and the control host will receive the signal to indicate that the corresponding rear knuckle is installed in place.

[0042] Further, the middle part of the horizontal fixing plate 10 corresponding to the middle through hole of the left rear knuckle or the right rear knuckle clamped by the middle clamping device 30 is formed with a center processing through groove 16.

[0043] Further, the two vertical fixed plates 11 are fixed with left and right side clamping devices 20 which are symmetrical to each other;

[0044] The side clamping device 20 comprises a side clamping oil cylinder 21 fixed to the upper, rear and middle parts of the inner side wall of the vertical fixed plate 11, and the end part of the pressing plate of the side clamping oil cylinder 21 is fixed with a positioning support pin 22 on the inner side wall of the corresponding vertical fixed plate 11.

[0045] The inner side wall of the vertical fixed plate 11 is further fixed with a rotary pressing oil cylinder 23, and the inner wall surface of the pressing block fixed on the rotating shaft of the rotary pressing oil cylinder 23 faces the inner side wall of the corresponding vertical fixed plate 11.

[0046] Further, the front and rear parts of the inner side wall of the vertical fixed plate 11 are fixed with side positioning seats 24, and the side positioning seats 24 are installed with positioning rods 25, and the end part of the positioning rod 25 extends out of the outer end surface of the side positioning seat 24.

[0047] In use, the two left and right rear steering knuckles are respectively installed on the two middle clamping devices 30 and side clamping devices 20;

[0048] The top part of the first positioning pin 1 is inserted into the first positioning concave hole 104 formed on the left side bottom surface of the left or right rear steering knuckle at the middle part, and the top surface thereof is pressed against the top surface of the first positioning concave hole 104 to realize positioning support, and the top part of the second positioning pin 2 is inserted into the corresponding waist-shaped positioning concave hole 105 formed on the left side bottom surface of the left or right rear steering knuckle at the middle part, and the top surface thereof is pressed against the top surface of the waist-shaped positioning concave hole 105, and the waist-shaped positioning concave hole 105 is adopted because the first positioning concave hole 104 is a circular concave hole with a tapered wall surface with a small upper end and a large lower end, and the first positioning pin 1 and the first positioning concave hole 104 are inserted and matched to facilitate the insertion of the top part of the second positioning pin 2 into the waist-shaped positioning concave hole 105, then the bottom surface of the bottom support column formed on the bottom surface of the left part of the left or right rear steering knuckle at the middle part at the front side or rear side is pressed against the top surface of the corresponding convex column 151, and the detection rod 152 is retracted, at this time, the position is accurately sensed, then the pressing blocks of the first, second and third lever oil cylinders 31, 32 and 33 are pressed to realize clamping and fixing of the left and right rear steering knuckles at the middle part;

[0049] And the left and right rear steering knuckles on both sides are clamped between the end part inner wall surface of the pressing plate of the corresponding side clamping oil cylinder 21 and the positioning support pin 22 to realize fixing, at the same time, the rotating shaft of the rotary pressing oil cylinder 23 rotates and retracts, so that the inner wall surface of the pressing block fixed on the rotating shaft of the rotary pressing oil cylinder 23 is pressed against the corresponding wall surface of the corresponding left or right rear steering knuckle;

[0050] Then, the top surface of the left rear knuckle or the right rear knuckle at the middle part can be milled and drilled, the top surface of the connecting part 103 can be milled and drilled, and the top surface of the side extension part 101 of the left rear knuckle or the right rear knuckle on both sides can be milled and drilled;

[0051] After the completion, the horizontal fixing plate 10 is turned over 180 degrees by driving the motor, so that the machining tool of the machining center can extend into the first to-be-machined through groove 12, the center through groove 13, the center machining through groove 16 and the like, and the bottom surface (at this time, the top surface) of the corresponding left rear knuckle and right rear knuckle is machined, which is high in machining efficiency and good in effect.

[0052] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A complete rear knuckle machining tooling set comprising a horizontal fixed plate (10), characterized in that: The left and right parts of the top surface of the horizontal fixing plate (10) are fixed with vertical fixing plates (11), and the opposite wall surfaces of the two vertical fixing plates (11) are respectively provided with side clamping devices (20) for clamping left and right rear steering knuckles; The side extension part (101) of the left or right rear steering knuckle clamped on the side clamping device (20) is provided with a machining side through groove (120) formed on the corresponding horizontal fixing plate (10); The front and rear parts of the middle top surface of the horizontal fixing plate (10) are fixed with middle clamping devices (30) for clamping left or right rear steering knuckles; The two middle clamping devices (30) are mirror-symmetrically arranged with the center vertical surface of the middle left and right extensions of the top surface of the horizontal fixing plate (10) as the center.

2. The complete rear knuckle machining tooling set according to claim 1, characterized in that: The top left extension part (102) of the left or right rear steering knuckle clamped by the middle clamping device (30) is provided with a first to-be-machined through groove (12) formed on the horizontal fixing plate (10) directly below.

3. The complete rear knuckle machining tooling set of claim 1, wherein: The left and right rear steering knuckles clamped on the two middle clamping devices (30) are provided with radially extending connecting parts (103) at the side close to each other, and the horizontal fixing plate (10) below the connecting part (103) is provided with a center through groove (13).

4. The complete rear knuckle machining tooling set of claim 1, wherein: The left and right sides of the horizontal fixing plate (10) are fixed with outer connecting plates (14), and the outer side walls of the outer connecting plates (14) are fixed with connecting shafts (141).

5. The complete rear knuckle machining tooling set of claim 3, wherein: The middle clamping device (30) comprises a first lever oil cylinder (31) fixed to the left side of the center through groove (13) of the horizontal fixing plate (10), and a second lever oil cylinder (32) fixed to the outer side of the right side of the center through groove (13) of the horizontal fixing plate (10); The front middle clamping device (30) further comprises a third lever oil cylinder (33) fixed to the front part of the middle part of the horizontal fixing plate (10), and the rear middle clamping device (30) comprises a third lever oil cylinder (33) fixed to the rear part of the middle part of the horizontal fixing plate (10); The top surface of the horizontal fixing plate (10) directly below the end of the pressing block of the first lever oil cylinder (31) is fixed with a first positioning pin (1), the top surface of the first positioning pin (1) is a spherical surface corresponding to a first positioning recess (104) formed on the left bottom surface of the left or right rear steering knuckle, the top of the first positioning pin (1) extends into the corresponding first positioning recess (104), and the top surface of the first positioning pin (1) is pressed against the top surface of the first positioning recess (104).

6. The complete rear knuckle machining tooling set according to claim 5, characterized in that: The top surface of the horizontal fixing plate (10) directly below the end of the pressing block of the second lever oil cylinder (32) is fixed with a second positioning pin (2), the top surface of the second positioning pin (2) is a spherical surface corresponding to a waist-shaped positioning recess (105) formed on the right bottom surface of the left or right rear steering knuckle, the top of the second positioning pin (2) extends into the corresponding waist-shaped positioning recess (105), and the top surface of the second positioning pin (2) is pressed against the top surface of the waist-shaped positioning recess (105).

7. The complete rear knuckle machining tooling set of claim 5, wherein: The bottom surface of the end of the pressing block of the third lever oil cylinder (33) is fixed with a positioning support seat (15) on the top surface of the corresponding horizontal fixed plate (10), and the middle part of the top surface of the positioning support seat (15) is formed with an upwardly extending protruding column (151), and the top surface of the protruding column (151) corresponds to the bottom surface of the end of the pressing block of the third lever oil cylinder (33).

8. The complete rear knuckle machining tooling set of claim 1, wherein: The middle part through hole of the left rear knuckle or the right rear knuckle clamped at the middle clamping device (30) is correspondingly formed with a center machining through groove (16) on the horizontal fixed plate (10).

9. The complete rear knuckle machining tooling set of claim 1, wherein: The two vertical fixed plates (11) are fixed with left-right symmetrical side clamping devices (20); The side clamping device (20) comprises a side clamping oil cylinder (21) fixed on the upper part, rear part and middle part of the inner side wall of the vertical fixed plate (11), and the end inner wall surface of the pressing plate of the side clamping oil cylinder (21) is fixed with a positioning support pin (22) on the corresponding inner side wall of the vertical fixed plate (11); The inner side wall of the vertical fixed plate (11) is also fixed with a rotary pressing oil cylinder (23), and the inner wall surface of the pressing block fixed on the rotating shaft of the rotary pressing oil cylinder (23) faces the inner side wall of the corresponding vertical fixed plate (11); The front part and the rear part of the inner side wall of the vertical fixed plate (11) are both fixed with a side positioning seat (24), and the side positioning seat (24) is installed with a positioning rod (25), and the end of the positioning rod (25) extends out of the outer end surface of the side positioning seat (24). The bottom surface of the end of the pressing block of the third lever oil cylinder (33) is fixed with a positioning support seat (15) on the top surface of the corresponding horizontal fixed plate (10), and the middle part of the top surface of the positioning support seat (15) is formed with an upwardly extending protruding column (151), and the top surface of the protruding column (151) corresponds to the bottom surface of the end of the pressing block of the third lever oil cylinder (33). The middle part through hole of the left rear knuckle or the right rear knuckle clamped at the middle clamping device (30) is correspondingly formed with a center machining through groove (16) on the horizontal fixed plate (10). The two vertical fixed plates (11) are fixed with left-right symmetrical side clamping devices (20); The side clamping device (20) comprises a side clamping oil cylinder (21) fixed on the upper part, rear part and middle part of the inner side wall of the vertical fixed plate (11), and the end inner wall surface of the pressing plate of the side clamping oil cylinder (21) is fixed with a positioning support pin (22) on the corresponding inner side wall of the vertical fixed plate (11); The inner side wall of the vertical fixed plate (11) is also fixed with a rotary pressing oil cylinder (23), and the inner wall surface of the pressing block fixed on the rotating shaft of the rotary pressing oil cylinder (23) faces the inner side wall of the corresponding vertical fixed plate (11); The front part and the rear part of the inner side wall of the vertical fixed plate (11) are both fixed with a side positioning seat (24), and the side positioning seat (24) is installed with a positioning rod (25), and the end of the positioning rod (25) extends out of the outer end surface of the side positioning seat (24).

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