Adjustable fixing clamp for machining of a steering housing

Abstract

The present application relates to the technical field of steering housing processing, and discloses an adjustable fixing clamp for steering housing processing, which comprises a frame body, a positioning assembly, a centering assembly and a driving piece, the centering assembly comprises a positioning die, a centering rod arranged in the positioning die, a guide cover plate, a guide frame, a rotating plate and a lever, the rotating plate is provided with a bushing, the lever comprises a connecting part, a lever cylinder arranged at the end of the connecting part and a sliding column arranged at the other end of the connecting part, an eccentric plug is arranged on the side of the lever cylinder away from the sliding column, the plug is movably inserted into the bushing on the rotating plate, the centering rod in the positioning die is located in the middle of the plurality of levers, and the driving piece drives the rotating plate to rotate and drives the plurality of levers to move, so that the expansion plate and the steering housing can be perfectly matched and completely attached, and the stable effect can be achieved, and the processing precision is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steering housing processing, in particular to an adjustable fixing clamp for steering housing processing. BACKGROUND

[0002] The machine tool clamp is a device used for clamping workpieces and guiding tools on a machine tool. It refers to a clamp specially designed for a certain workpiece and a certain process. Its characteristics are compact structure, rapid operation, convenience, labor saving, and can ensure high machining precision and production efficiency, but the design and manufacturing period is longer and the manufacturing cost is higher. When the product is changed, the clamp will be scrapped because it cannot be used again. It is only suitable for production with fixed products and large batch. It is in contact with the positioning reference of the workpiece, used to determine the correct position of the workpiece in the clamp, so as to ensure the relative correct position between the workpiece and the tool and the machine tool machining movement during machining.

[0003] In the prior art, during the drilling process of the steering housing, the plug on the frame is inserted into the positioning hole on the steering housing, and during the machining process, the plug and the positioning hole cannot be closely fitted and positioned, which greatly reduces the machining precision of the steering housing, and ultimately cannot guarantee the safety and stability of the automobile. SUMMARY

[0004] The purpose of the present application is to provide an adjustable fixing clamp for steering housing processing. The positioning assembly in the present application can automatically expand, realize perfect adaptation and complete fitting of the expansion plate and the steering housing, and can play a stabilizing role, further improving the machining precision.

[0005] The above technical purpose of the present application is realized by the following technical scheme: an adjustable fixing clamp for steering housing processing, comprising a frame, a positioning assembly arranged on the frame, a centering assembly and a driving piece, the centering assembly comprising a positioning mold, a centering rod arranged inside the positioning mold, a guide cover plate, a guide frame, a rotating plate and a lever, the guide cover plate is arranged on the frame, the rotating plate and the guide frame are both rotatably connected in the guide cover plate, the rotating plate is provided with a plug hole, the lever comprises a connecting part, a lever cylinder arranged at one end of the connecting part and a sliding column arranged at the other end of the connecting part, the lever cylinder is eccentrically provided with a plug column on the side away from the sliding column, the plug column is movably inserted into the plug hole on the rotating plate, the centering rod inside the positioning mold is located in the middle of the plurality of levers, and the driving piece drives the rotating plate to rotate and drives the plurality of levers to move.

[0006] By adopting the technical scheme, the driving member can realize synchronous control of the positioning assembly and the centering assembly, and mutual interference is avoided, the driving motor drives the rotating plate to rotate, the rotating plate drives the rotating cylinders to rotate through the inserting columns, the three rotating cylinders move synchronously to the center, and the rotating cylinders can clamp the centering rod in the positioning mold, the centering rod is pushed to center the positioning mold, and meanwhile, the prior art only adopts the screw inserted into the positioning hole in the rotating shell, and because a gap exists between the screw and the positioning hole, vibration and machining error of the rotating shell occur in the drilling process, therefore, the positioning assembly can be automatically expanded, the expansion plate and the rotating shell can be perfectly matched and completely attached, and the stable effect is achieved, and the machining precision is further improved.

[0007] Further provided in the application is that the positioning assembly comprises a guide bottom plate, an expansion plate, a sliding rod and a positioning gear, the guide bottom plate is provided with a plurality of expansion grooves in a radial manner, the expansion plate is arranged axially along the guide bottom plate, the sliding rod is arranged radially at the end of the expansion plate, the sliding rod is slidingly connected in the expansion groove, a shaft rod is arranged on the shaft center of the guide bottom plate, the positioning gear is rotationally connected on the shaft rod, an arc-shaped hole is arranged radially on the positioning gear, an expansion rod is arranged at the end of the sliding rod away from the expansion plate, the expansion rod is slidingly inserted in the arc-shaped hole, and the driving member drives the positioning gear to rotate.

[0008] By adopting the technical scheme, the positioning assembly can realize stable positioning of the rotating shell, the driving member drives the positioning gear to rotate, the arc-shaped hole on the positioning gear drives the expansion rod to drive the sliding rod to move radially along the expansion groove on the guide bottom plate, and further drives the expansion plate at the end of the sliding rod to expand or close, and the adhesion of the expansion plate and the positioning hole on the rotating shell is increased.

[0009] Further provided in the application is that the driving member comprises a driving motor, a main worm, a secondary worm, a main gear, a secondary gear, a main driving gear and a secondary driving gear, the main worm and the secondary worm are rotationally connected on the guide frame, the main gear is coaxially connected at the end of the main worm, the secondary gear is coaxially connected at the end of the secondary worm, the main gear and the secondary gear are meshed with each other, the output shaft of the driving motor is connected at the end of the main worm away from the main gear, the main driving gear is rotationally connected on one side of the guide frame, the secondary driving gear is rotationally connected on the other side of the guide frame, the outer side of the rotating plate is provided with a rotating gear, the main driving gear is meshed with the rotating gear, and a lower gear is rotationally connected on the frame body and is meshed with the secondary driving gear.

[0010] The guiding cover plate is provided with a guiding cavity for the sliding column on the shifting rod.

[0011] The frame body is provided with an arc-shaped sliding groove, and the bottom of the guiding frame is provided with a clamping block which is movably inserted into the arc-shaped sliding groove.

[0012] The bottom of the lower gear is coaxially fixedly connected with a first synchronous wheel, the positioning gear is engaged with a synchronous gear, the synchronous gear is coaxially fixedly connected with a synchronous rod, the end of the synchronous rod is provided with a second synchronous wheel, and the first synchronous wheel and the second synchronous wheel are connected through a synchronous belt.

[0013] By adopting the above technical scheme, the driving member can realize synchronous driving of the positioning assembly and the centering assembly, and the driving members are not limited to each other, wherein the driving motor drives the main worm to rotate, the main gear at the end of the main worm drives the auxiliary worm to rotate, the main worm drives the main driving gear to rotate, the main driving gear drives the rotating gear engaged with the main driving gear to rotate, the rotating gear is connected with the rotating plate, the rotating plate further rotates, the rotating plate drives the shifting cylinders to rotate through the inserting columns, the three shifting cylinders move synchronously to the center, so that the centering rod in the positioning mold can be clamped, the centering rod is pushed to center the positioning mold, at the same time, the auxiliary worm drives the auxiliary driving gear to rotate, the auxiliary driving gear drives the positioning gear to rotate through the first synchronous wheel and the second synchronous wheel, and the movement of the expansion plate is further realized, wherein the guiding frame is rotatably connected with the guiding cover plate, if the main gear drives the rotating plate to move so that the three shifting rods move to the center position to clamp the centering rod, the expansion plate does not completely fit the positioning hole in the steering shell, at this time, the auxiliary worm continues to drive the auxiliary driving gear to rotate to drive the expansion plate to move, and the rotation of the main worm makes the main gear rotate in a circle, and the rotating plate is not driven to rotate, until the expansion plate further expands to completely fit the inner wall of the positioning hole, and the synchronous driving of the positioning assembly and the centering assembly by the same driving member is realized, and the driving members do not interfere with each other.

[0014] The present application has the following advantages:

[0015] 1、The driving part in the application can realize the synchronous control of the positioning assembly and the centering assembly, and will not interfere with each other, wherein the driving motor drives the rotating plate to rotate, the rotating plate will drive the rotating cylinder to rotate through the inserting column, the three rotating cylinders will move synchronously to the center, so that they can clamp the centering rod in the middle of the positioning mold, and by pushing the centering rod, the positioning mold is centered, and the prior art only uses the screw inserted into the positioning hole on the steering shell, and since there is a certain gap between the screw and the positioning hole, the steering shell will vibrate and have machining error during the drilling process, therefore, the positioning assembly used in the application can automatically expand, so that the expansion plate and the steering shell can perfectly adapt and completely fit, and can play a stable role, further improving the machining precision.

[0016] 2、The positioning assembly in the application can realize the stable positioning effect of the steering shell, wherein the driving part drives the positioning gear to rotate, the arc-shaped hole on the positioning gear pushes the expansion rod to drive the sliding rod to move radially along the expansion groove on the guide bottom plate, further driving the expansion plate at the end of the sliding rod to expand or close, increasing the fit of the expansion plate and the positioning hole on the steering shell. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 is the structural structure schematic diagram of the application.

[0019] Figure 2 is the main view structural schematic diagram of the application.

[0020] Figure 3 is the positioning mold structure schematic diagram in the application.

[0021] Figure 4 is the cross-sectional structure schematic diagram in the application.

[0022] Figure 5 is the explosion structure schematic diagram in the application.

[0023] Figure 6 is the guide cover plate structure schematic diagram in the application.

[0024] Figure 7 is the driving part local structure schematic diagram in the application.

[0025] Figure 8 is the main view structural schematic diagram of the positioning assembly in the application.

[0026] Figure 9 is the schematic diagram of the positioning assembly of the application.

[0027] In the figure, 1, frame body; 11, positioning mold; 12, centering rod; 13, arc-shaped sliding slot; 2, centering assembly; 21, guide cover plate; 211, guide cavity; 22, guide frame; 221, clamping block; 23, rotating plate; 231, insertion hole; 24, push rod; 241, connecting part; 242, push cylinder; 2421, insertion column; 243, sliding column; 3, positioning assembly; 31, guide bottom plate; 311, expansion slot; 312, shaft rod; 32, expansion plate; 33, sliding rod; 331, expansion rod; 34, positioning gear; 341, arc-shaped hole; 4, driving member; 41, driving motor; 42, main worm; 43, auxiliary worm; 44, main gear; 45, auxiliary gear; 46, main driving gear; 47, auxiliary driving gear; 48, rotating gear; 49, lower gear; 491, first synchronous wheel; 5, synchronous gear; 51, synchronous rod; 511, second synchronous wheel; 52, synchronous belt. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0029] Embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The adjustable fixing clamp for steering housing machining shown comprises a frame body 1, a positioning assembly 3 arranged on the frame body 1, a centering assembly 2 and a driving member 4, the centering assembly 2 comprises a positioning die 11, a centering rod 12 arranged inside the positioning die 11, a guide cover plate 21, a guide frame 22, a rotating plate 23 and a push rod 24, the guide cover plate 21 is arranged on the frame body 1, the rotating plate 23 and the guide frame 22 are both rotationally connected in the guide cover plate 21, the rotating plate 23 is provided with a insertion hole 231, the push rod 24 comprises a connecting portion 241, a push cylinder 242 arranged at one end of the connecting portion 241 and a sliding column 243 arranged at the other end of the connecting portion 241, the push cylinder 242 is eccentrically provided with an insertion column 2421 on the side away from the sliding column 243, the insertion column 2421 is movably inserted in the insertion hole 231 on the rotating plate 23, the centering rod 12 inside the positioning die 11 is located in the middle of the push rod 24, and the driving member 4 drives the rotating plate 23 to rotate and drive the push rod 24 to move.

[0030] The driving member 4 in the application can realize synchronous control of the positioning assembly 3 and the centering assembly 2, and will not cause interference between each other, wherein the driving motor 41 drives the rotating plate 23 to rotate, the rotating plate 23 drives the push cylinder 242 to rotate through the insertion column 2421, the three push cylinders 242 synchronously move to the center, so that the centering rod 12 in the middle of the positioning die 11 can be clamped, the centering rod 12 is pushed to make the positioning die 11 centered, meanwhile, the prior art only uses the screw rod to be inserted in the positioning hole on the steering housing, due to the existence of a certain gap between the screw rod and the positioning hole, the steering housing will vibrate and cause machining error in the process of machining drilling, therefore, the positioning assembly 3 used in the application can be automatically expanded, the expansion plate 32 and the steering housing can be perfectly matched and completely attached, and the stable effect can be achieved, and the machining precision is further improved.

[0031] As Figure 8 , Figure 9As shown in the figure, the further arrangement of the present application is that the positioning assembly 3 comprises a guide base plate 31, an expansion plate 32, a sliding rod 33 and a positioning gear 34, a plurality of expansion grooves 311 are arranged radially on the guide base plate 31, the expansion plate 32 is arranged axially along the guide base plate 31, the sliding rod 33 is arranged radially at the end of the expansion plate 32, the sliding rod 33 is slidingly connected in the expansion groove 311, a shaft 312 is arranged on the shaft of the guide base plate 31, the positioning gear 34 is rotationally connected on the shaft 312, an arc-shaped hole 341 is arranged radially on the positioning gear 34, an expansion rod 331 is arranged at the end of the sliding rod 33 away from the expansion plate 32, the expansion rod 331 is slidingly inserted in the arc-shaped hole 341, and the driving part 4 drives the rotation of the positioning gear 34.

[0032] The positioning assembly 3 in the present application can realize the effect of stable positioning of the steering shell, wherein the driving part 4 drives the rotation of the positioning gear 34, the arc-shaped hole 341 on the positioning gear 34 pushes the expansion rod 331 to drive the radial movement of the sliding rod 33 along the expansion groove 311 on the guide base plate 31, and further drives the expansion or closure of the expansion plate 32 at the end of the sliding rod 33, thereby increasing the fitting degree of the expansion plate 32 with the positioning hole on the steering shell.

[0033] As shown in the figure, Figure 5 , Figure 7 , Figure 8 As shown in the figure, the further arrangement of the present application is that the driving part 4 comprises a driving motor 41, a main worm 42, a secondary worm 43, a main gear 44, a secondary gear 45, a main drive gear 46 and a secondary drive gear 47, the main worm 42 and the secondary worm 43 are rotationally connected on the guide frame 22, the main gear 44 is coaxially connected at the end of the main worm 42, the secondary gear 45 is coaxially connected at the end of the secondary worm 43, the main gear 44 and the secondary gear 45 are meshed with each other, the output shaft of the driving motor 41 is connected at the end of the main worm 42 away from the main gear 44, the main drive gear 46 is rotationally connected on one side of the guide frame 22, the secondary drive gear 47 is rotationally connected on the other side of the guide frame 22, the outer side of the rotating plate 23 is provided with a rotating gear 48, the main drive gear 46 is meshed with the rotating gear 48, and a lower gear 49 is rotationally connected on the frame body 1, and the lower gear 49 is meshed with the secondary drive gear 47.

[0034] As shown in the figure, Figure 6 As shown in the figure, the further arrangement of the present application is that the guide cover plate 21 is provided with a guide cavity 211 for the movement of the sliding column 243 on the shifting rod 24.

[0035] As shown in the figure, Figure 4Further, the frame 1 is provided with an arc-shaped sliding groove 13, and the bottom of the guide frame 22 is provided with a clamping block 221 which is movably inserted into the arc-shaped sliding groove 13.

[0036] As shown in the drawings, Figure 7 Further, the bottom of the secondary driving gear 47 is coaxially fixedly connected with a first synchronous wheel 491, the positioning gear 34 is engaged with a synchronous gear 5, the synchronous gear 5 is coaxially fixedly connected with a synchronous rod 51, the end of the synchronous rod 51 is provided with a second synchronous wheel 511, and the first synchronous wheel 491 and the second synchronous wheel 511 are connected through a synchronous belt 52.

[0037] As shown in the drawings, Figure 5 , Figure 7 The driving member 4 can realize synchronous driving of the positioning assembly 3 and the centering assembly 2, and the driving member 4 is not limited between the positioning assembly 3 and the centering assembly 2. When the driving motor 41 drives the main worm 42 to rotate, the main gear 44 at the end of the main worm 42 drives the secondary worm 43 to rotate through the secondary gear 45, the main worm 42 drives the main driving gear 46 to rotate, the main driving gear 46 drives the rotating gear 48 engaged with the main driving gear 46 to rotate, the rotating gear 48 is connected with the rotating plate 23, the rotating plate 23 further rotates, the rotating plate 23 drives the pushing cylinder 242 to rotate through the inserting column 2421, the three pushing cylinders 242 synchronously move to the center, so that the centering rod 12 in the positioning mold 11 is clamped, the centering rod 12 is pushed to make the positioning mold 11 centered, at the same time, the secondary gear 45 drives the secondary driving gear 47 to rotate, the secondary driving gear 47 drives the positioning gear 34 to rotate through the first synchronous wheel 491 and the second synchronous wheel 511, and the movement of the expansion plate 32 is further realized. Since the guide frame 22 is rotationally connected with the guide cover plate 21, if the main gear 44 drives the rotating plate 23 to move so that the three pushing rods 24 are moved to the center position to clamp the centering rod 12, the expansion plate 32 does not completely fit with the positioning hole on the rotating shell, at this time, the secondary worm 43 continues to drive the secondary driving gear 47 to rotate to drive the expansion plate 32 to move, and the rotation of the main worm 42 makes the main gear 44 do the circular motion, and the rotating plate 23 is not driven to rotate, until the expansion plate 32 is further expanded to completely fit with the inner wall of the positioning hole, so that the same driving member 4 drives the positioning assembly 3 and the centering assembly 2 to synchronously move, and the positioning assembly 3 and the centering assembly 2 do not interfere with each other.

[0038] The driving part 4 in the application can realize the synchronous control of the positioning assembly 3 and the centering assembly 2, and will not cause interference between each other, wherein the driving motor 41 drives the rotating plate 23 to rotate, the rotating plate 23 will drive the rotating cylinder 242 to rotate through the inserting column 2421, the three rotating cylinders 242 will move to the center synchronously, so that the centering rod 12 in the middle of the positioning mold 11 can be clamped, the centering rod 12 is pushed to make the positioning mold 11 centered, meanwhile, the prior art only adopts the screw rod inserted into the positioning hole on the rotating shell, because there is a certain gap between the screw rod and the positioning hole, the rotating shell will vibrate and have machining error in the process of machining the drilling hole, therefore, the positioning assembly 3 adopted in the application can be automatically expanded, the expansion plate 32 and the rotating shell can be perfectly matched and completely attached, and the stable effect can be achieved, and the machining precision is further improved.

Claims

1. An adjustable fixture for steering housing machining, characterized by: The utility model provides a centering device and positioning device, including frame (1), set up positioning assembly (3) on frame (1), centering assembly (2) and driving part (4), centering assembly (2) includes positioning mould (11), the centering rod (12) that sets up in positioning mould (11) inside, guide cover plate (21), guide frame (22), rotating plate (23), lever (24), guide cover plate (21) sets up on frame (1), rotating plate (23) and guide frame (22) are all rotationally connected in guide cover plate (21), and the insertion hole (231) is set up on rotating plate (23), and lever (24) includes connecting portion (241), the lever cylinder (242) that sets up in connecting portion (241) end and the sliding column (243) that sets up in connecting portion (241) another end, and the insertion post (2421) is eccentric and set up on the one side of lever cylinder (242) away from sliding column (243), and the insertion post (2421) is movably inserted in the insertion hole (231) on rotating plate (23), and the centering rod (12) inside positioning mould (11) is located in the middle of a plurality of lever (24), and driving part (4) drives rotating plate (23) rotation drives a plurality of lever (24) movement, positioning assembly (3) includes guide bottom plate (31), expansion plate (32), sliding rod (33), positioning gear (34), a plurality of expansion grooves (311) are set up in guide bottom plate (31) on radiality, expansion plate (32) is set up along the axial direction of guide bottom plate (31), and the sliding rod (33) is set up in the end of expansion plate (32) radially, and the sliding rod (33) is slidably connected in expansion groove (311), and the axle rod (312) is set up on the axle of guide bottom plate (31), and positioning gear (34) is rotationally connected on axle rod (312), and the arc-shaped hole (341) is set up radially on positioning gear (34), and the expansion rod (331) is set up on the end of sliding rod (33) away from expansion plate (32), and the expansion rod (331) is slidably inserted in arc-shaped hole (341), and driving part (4) drives positioning gear (34) rotation.

2. The adjustable fixture for machining of a steering housing according to claim 1, characterized in that: The driving member (4) comprises a driving motor (41), a main worm (42), a secondary worm (43), a main gear (44), a secondary gear (45), a main driving gear (46) and a secondary driving gear (47), the main worm (42) and the secondary worm (43) are rotationally connected to the guide frame (22), the main gear (44) is coaxially connected to the end of the main worm (42), the secondary gear (45) is coaxially connected to the end of the secondary worm (43), the main gear (44) and the secondary gear (45) are in mesh with each other, the output shaft of the driving motor (41) is connected to the end of the main worm (42) away from the main gear (44), the main driving gear (46) is rotationally connected to one side of the guide frame (22), the secondary driving gear (47) is rotationally connected to the other side of the guide frame (22), the outer side of the rotating plate (23) is provided with a rotating gear (48), the main driving gear (46) is in mesh with the rotating gear (48), and the frame body (1) is rotationally connected with a lower gear (49), the lower gear (49) is in mesh with the secondary driving gear (47).

3. The adjustable fixture for machining of a steering housing according to claim 1, characterized in that: The guide cover plate (21) is provided with a guide cavity (211) for the sliding column (243) on the shifting rod (24).

4. The adjustable fixture of claim 1, wherein: The frame body (1) is provided with an arc-shaped sliding groove (13), and the bottom of the guide frame (22) is provided with a clamping block (221) which is movably inserted into the arc-shaped sliding groove (13).

5. The adjustable fixture of claim 2, wherein: The bottom of the lower gear (49) is coaxially fixedly connected with a first synchronous wheel (491), the positioning gear (34) is engaged with a synchronous gear (5), the synchronous gear (5) is coaxially fixedly connected with a synchronous rod (51), the end of the synchronous rod (51) is provided with a second synchronous wheel (511), and the first synchronous wheel (491) and the second synchronous wheel (511) are connected through a synchronous belt (52).

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