Knuckle casting head double-station front-back sawing mechanism

Abstract

The utility model discloses a steering knuckle casting head double-station front-back saw cutting mechanism which comprises a saw cutting feeding servo motor, a saw cutting feeding lead screw and a saw cutting main shaft assembly and further comprises a transverse adjusting mechanism, and the transverse adjusting mechanism comprises a transverse adjusting servo motor, a transverse adjusting lead screw and a guide rail clamping device. An output shaft of the saw cutting feeding servo motor is in driving connection with the saw cutting feeding lead screw, and the transverse adjusting mechanism is arranged above the saw cutting feeding lead screw and can move in the extending direction of the saw cutting feeding lead screw through rotation of the saw cutting feeding lead screw. An output shaft of the transverse adjusting servo motor is in driving connection with a transverse adjusting screw rod, and guide rail clamps are arranged on the two sides of the transverse adjusting screw rod; the saw cutting main shaft assembly is arranged above the transverse adjusting lead screw and can move in the extending direction of the transverse adjusting lead screw through rotation of the transverse adjusting lead screw. The saw cutting positions of the front saw cutting mechanism and the rear saw cutting mechanism can be adjusted quickly and accurately, and equipment safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of casting processing, especially relates to a knuckle pouring riser double position front and back saw cutting mechanism. BACKGROUND

[0002] With the rapid development of the lightweight of the automobile industry parts, the aluminum alloy cast steering knuckle has also been widely used. The steering knuckle is one of the important parts of the automobile chassis, which can ensure the stable driving and sensitive steering of the automobile, and the main function is to bear and transmit the front load, drive the wheel to rotate around the main pin to make the automobile turn. The steering knuckle is relatively complex in shape, and the position precision between the more machined surfaces is high, which is a typical complex fork-shaped part. Generally, horizontal split mold differential pressure casting is the best. When using differential pressure process for production and manufacturing, a part of the aluminum liquid will solidify at the aluminum water inlet, forming a pouring riser of a certain height. If the pouring riser is directly machined, the tool consumption is large, the working hours are long, and the processing cost is increased. The current common scheme is to use a pouring riser saw cutting mechanism to pretreat the casting and reduce the machining amount of the subsequent numerical control machine tool.

[0003] Affected by the rapid development of new energy vehicles, the aluminum alloy cast steering knuckle is also constantly updated. The current steering knuckle front and back sawing riser mechanism is mostly fixed type sawing spindle, which can control the sawing feed of the sawing spindle, but cannot adjust the sawing position of the saw blade at any time. In the face of different pouring riser specifications of the same product, the relative position of the casting and the saw blade can only be adjusted by the tool fixture, which not only has a small adjustment range, but also requires high precision of the tool fixture. Manual adjustment is difficult to accurately position, and cannot be adjusted in place at one time. When machining different pouring risers of a single product, only the tool fixture can be adjusted, the adjustable range is small, and high-precision tool fixtures are required, which is time-consuming and laborious for manual adjustment.

[0004] The feed of the sawing spindle cannot be controlled respectively, and the space is small during maintenance and maintenance. The left and right double position front and back sawing feeds cannot be controlled respectively, and manual operation is not convenient when replacing the saw blade or repairing.

[0005] The aluminum chips generated in the process of sawing the pouring riser have high temperature and high speed, which can easily damage the sliding block, screw rod and other parts, cause the screw rod and sliding block to be stuck and damaged, cause equipment failure, and increase maintenance and repair. SUMMARY

[0006] In view of the above technical problems, the utility model discloses a steering knuckle pouring riser double position front and back saw cutting mechanism, which makes the sawing position adjustment more rapid and accurate, and improves the safety of the equipment.

[0007] The utility model discloses a technical scheme that a kind of knuckle pouring riser double-station front and rear sawing mechanism, including sawing feed servo motor, sawing feed screw rod, sawing spindle assembly, further including transverse adjustment mechanism, and transverse adjustment mechanism includes transverse adjustment servo motor, transverse adjustment screw rod, guide rail clamp.

[0008] The output shaft of sawing feed servo motor is drivenly connected with sawing feed screw rod, and the transverse adjustment mechanism is arranged above the sawing feed screw rod and can move along the extension direction of the sawing feed screw rod by the rotation of the sawing feed screw rod.

[0009] The output shaft of transverse adjustment servo motor is drivenly connected with transverse adjustment screw rod, and guide rail clamps are arranged on both sides of the transverse adjustment screw rod; the sawing spindle assembly is arranged above the transverse adjustment screw rod and can move along the extension direction of the transverse adjustment screw rod by the rotation of the transverse adjustment screw rod.

[0010] Further, the sawing spindle assembly includes a sawing motor, which drives the spindle to rotate through a synchronous belt, and the free end of the spindle is used for mounting a saw disc.

[0011] Further, to ensure smooth sawing and no loss of origin, the sawing spindle assembly is arranged on a motor base, the bottom of the motor base is connected with the transverse adjustment screw rod through a screw rod nut, the transverse adjustment screw rod is arranged between transverse adjustment guide rails, and the guide rail clamps are arranged in cooperation with the transverse adjustment guide rails.

[0012] Further, to further improve the stability of sawing, a brake mechanism is arranged in the transverse adjustment servo motor.

[0013] Further, the sawing feed screw rod is arranged between two sawing feed guide rails, and the transverse adjustment mechanism is mounted on the sawing feed guide rails.

[0014] Further, the sawing feed servo motor and the transverse adjustment mechanism are arranged on the motor base, the transverse adjustment mechanism and the sawing spindle assembly are covered by a detachable split metal cover, the electrical circuits of the servo motor, the transverse adjustment mechanism and the sawing spindle assembly are arranged in a steel drag chain, and a plurality of layers of steel armor covers are mounted above the sawing feed screw rod, the transverse adjustment screw rod, the sawing feed guide rails and the transverse adjustment guide rails.

[0015] After the single product is changed by the cutting machine, the guide rail gripper of the trace adjustment mechanism is first loosened, the transverse adjustment servo motor drives the transverse adjustment screw rod to rotate, the screw rod nut connected with the motor base is pushed to move to the target position, and then the saw cutting positions of the left and right double stations can be controlled respectively. The transverse adjustment servo motor is provided with a brake mechanism, the guide rail gripper is locked, the sawing process is stable, and the original point is not lost. The left and right motor bases are controlled by two servo motors respectively, the sawing feed screw rod is rotated by controlling the sawing feed servo motor during sawing, the feed amount is accurately controlled, the sawing motor drives the main shaft through a synchronous belt, the motor base is retreated after the riser is stably sawed, and the personnel can enter the equipment for operation when the equipment is maintained.

[0016] In order to prevent the high-temperature flying debris generated by sawing from damaging the equipment, the mechanism utilizes a full-enclosing detachable split type metal protective motor base and other important components, is convenient to disassemble and assemble, and is firm and durable; the electrical circuit is arranged in a steel drag chain, and a plurality of layers of steel armor covers are arranged above the screw rod and the guide rail. The mechanism is suitable for machining various aluminum alloy cast steering knuckles, reduces the cost of early tooling fixtures, and important components are not damaged by high-temperature flying debris, and the reliability is high.

[0017] The mechanism can not only control the feed amount of the sawing main shaft, but also can adjust the sawing positions of the left and right double stations respectively. The fine adjustment process is adjusted by the precise screw rod driven by the transverse adjustment servo motor, the positioning is accurate and efficient, and the safety is high. After the fine adjustment is completed, the servo motor is braked, the guide rail gripper is locked, the saw blade is stably sawed, and the safety is high. The left and right double saw blades can be fed respectively, the left and right motor bases can be staggered when the saw blades are replaced and maintained, and manual operation is facilitated. The stainless steel armor covers are arranged at the positions of the screw rod and the sliding block, the electrical equipment wiring is protected by the steel drag chain, the high-temperature aluminum debris generated by sawing is prevented from damaging the machine, and the equipment has high reliability. The motor base part adopts a split type metal full-range protection, flying debris generated by sawing is prevented from hitting important components such as the motor and the screw rod, and the motor base part is convenient to disassemble and assemble and is convenient to maintain. The force of the sawing motor driving the main shaft is transmitted by a synchronous belt, the operation is stable and not easy to slip, and the stability of sawing is ensured. The mechanism has a wide application range, can meet the sawing requirements of various risers of single products, the saw blade positions are adjusted by the servo motor without adjusting the tooling fixture, the production efficiency is improved, and the early investment cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole schematic view of the double-station front-and-rear sawing mechanism for the steering knuckle riser.

[0019] Figure 2 It is a transverse adjustment mechanism schematic view of the double-station front-and-rear sawing mechanism for the steering knuckle riser.

[0020] In the figure, 1 is a sawing main shaft assembly, 2 is a sawing feed servo motor, 3 is a sawing feed screw, 4 is a synchronous belt, 5 is a drag chain, 6 is a helmet cover, 7 is a sheet metal cover, 8 is a transverse adjustment servo motor, 9 is a transverse adjustment screw, and 10 is a guide rail clamp. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with examples and drawings.

[0022] The steering knuckle pouring gate double-station front and rear sawing mechanism of the embodiment comprises a sawing feed servo motor 2, a sawing feed screw 3, a sawing main shaft assembly 1, and further comprises a transverse adjustment mechanism, the transverse adjustment mechanism comprising a transverse adjustment servo motor 8, a transverse adjustment screw 9 and a guide rail clamp 10.

[0023] The output shaft of the sawing feed servo motor 2 is drivingly connected with the sawing feed screw 3, and the transverse adjustment mechanism is arranged above the sawing feed screw 3 and can move along the extension direction of the sawing feed screw 3 by the rotation of the sawing feed screw 3.

[0024] The output shaft of the transverse adjustment servo motor 8 is drivingly connected with the transverse adjustment screw 9, and the transverse adjustment screw 9 is provided with the guide rail clamp 10 on both sides; the sawing main shaft assembly 1 is arranged above the transverse adjustment screw 9 and can move along the extension direction of the transverse adjustment screw 9 by the rotation of the transverse adjustment screw 9.

[0025] The sawing main shaft assembly 1 comprises a sawing motor, the sawing motor drives the main shaft to rotate through the synchronous belt 4, and the free end of the main shaft is used for mounting a saw disc.

[0026] The sawing main shaft assembly 1 is arranged on a motor base, the motor base is connected with the transverse adjustment screw 9 through a screw nut at the bottom; the transverse adjustment screw 9 is arranged between transverse adjustment guide rails, and the guide rail clamp 10 is arranged in cooperation with the transverse adjustment guide rails. A brake mechanism is arranged in the transverse adjustment servo motor 8. Double locking ensures stable sawing of the saw blade, and the safety is high.

[0027] After the cutting and pouring machine replaces a single product of different pouring gates, first, the guide rail clamp 10 of the trace adjustment mechanism is loosened through the operation panel, then the coordinate parameters are input according to the workpiece specifications, the servo motor is controlled to drive the screw to rotate, the screw nut connected with the motor base is moved to the target position, and the sawing positions of the left and right double stations can be controlled respectively. Finally, the servo motor is automatically braked, the guide rail clamp 10 is locked, the sawing process is stable, and the original point is not lost. The left and right motor bases are controlled by two servo motors respectively, the servo motor is controlled to rotate the screw during sawing, the feed amount is accurately controlled, the sawing motor drives the main shaft through the synchronous belt 4, the pouring gate is stably sawed, and then the motor base is retracted. When overhauling and maintaining, the left and right motor bases can be staggered, so that personnel can enter the equipment to operate.

[0028] The sawing feed screw 3 is arranged between two sawing feed guide rails, and the transverse adjustment mechanism is arranged on the sawing feed guide rails.

[0029] In order to prevent the high-temperature flying debris generated by sawing from damaging the equipment, the full-enclosing detachable split metal cover 7 is used to protect the motor base and other important components, which is convenient to disassemble and assemble and is firm and durable; the servo motor and the transverse adjustment mechanism are arranged on the motor base, the servo motor, the transverse adjustment mechanism and the sawing spindle assembly 1 are covered by the detachable split armor cover 6; the electrical lines of the servo motor, the transverse adjustment mechanism and the sawing spindle assembly 1 are arranged in the steel drag chain 5, and the multi-layer steel armor cover 6 is arranged above the sawing feed screw 3, the transverse adjustment screw 9, the sawing feed guide rail and the transverse adjustment guide rail. The mechanism is suitable for processing various aluminum alloy cast steering knuckles, reduces the cost of early tooling fixtures, and will not damage important components due to high-temperature flying debris, and has high reliability.

[0030] The mechanism can not only control the feed amount of the sawing spindle, but also can adjust the sawing positions of the left and right double stations respectively. In the fine adjustment process, the servo motor drives the precision screw rod to be adjusted through the operation panel, and the positioning is accurate, efficient and fast. After the fine adjustment is completed, the servo motor is braked, and the guide rail clamp 10 is locked. The left and right double saw blades can be fed respectively, and the left and right motor bases can be staggered when the saw blades are replaced and maintained, so that manual operation is facilitated. The customized stainless steel armor cover 6 is arranged at the positions of the screw rod and the sliding block, and the electrical equipment wiring is protected by the steel drag chain 5, so that the high-temperature aluminum debris generated by sawing does not damage the machine, and the equipment has high reliability. The motor base part adopts a split metal full-range protection, which prevents the flying debris generated by sawing from hitting important components such as the motor and the screw rod, and is convenient to disassemble and assemble and is convenient to maintain. The force of the sawing motor driving the spindle is transmitted by the synchronous belt 4, so that the operation is stable and not easy to slip, and the stability of sawing is ensured. The mechanism has a wide application range and can meet the sawing needs of various risers of a single product. In the case that the tooling fixture is not adjusted, the saw blade position is adjusted by the servo motor, the production efficiency is improved, and the early investment cost is reduced.

[0031] The above embodiments only illustrate the technical idea of the utility model, and cannot limit the protection scope of the utility model. Any modification made on the basis of the technical scheme according to the technical idea of the utility model falls within the protection scope of the utility model.

Claims

1. A dual-station front and rear sawing mechanism for the riser and gating system of a steering knuckle, characterized in that: It includes a sawing feed servo motor, a sawing feed screw, a sawing spindle assembly, and a lateral adjustment mechanism, which includes a lateral adjustment servo motor, a lateral adjustment screw, and a guide rail clamp. The output shaft of the sawing feed servo motor is connected to the sawing feed screw drive. The lateral adjustment mechanism is set above the sawing feed screw and can move along the extension direction of the sawing feed screw by the rotation of the sawing feed screw. The output shaft of the lateral adjustment servo motor is driven and connected to the lateral adjustment lead screw. Guide rail clamps are provided on both sides of the lateral adjustment lead screw. The sawing spindle assembly is located above the lateral adjustment lead screw and can move along the extension direction of the lateral adjustment lead screw by the rotation of the lateral adjustment lead screw.

2. The dual-station front and rear sawing mechanism for the steering knuckle riser as described in claim 1, characterized in that: The sawing spindle assembly includes a sawing motor that drives the spindle to rotate via a timing belt, and the free end of the spindle is used to mount the saw disc.

3. The dual-station front and rear sawing mechanism for the steering knuckle riser as described in claim 1, characterized in that: The sawing spindle assembly is mounted on the motor base, and the bottom of the motor base is connected to the lateral adjustment screw via a lead screw nut. The lateral adjustment screw is positioned between the lateral adjustment guide rails, and the guide rail clamp is configured to cooperate with the lateral adjustment guide rails.

4. The dual-station front and rear sawing mechanism for the steering knuckle riser as described in claim 1, characterized in that: A brake mechanism is installed inside the lateral adjustment servo motor.

5. The dual-station front and rear sawing mechanism for the steering knuckle riser as described in claim 1, characterized in that: The sawing feed screw is positioned between two sawing feed guides, and the lateral adjustment mechanism is mounted on the sawing feed guides.

6. The dual-station front and rear sawing mechanism for the steering knuckle riser as described in claim 1, characterized in that: The sawing feed servo motor and the lateral adjustment mechanism are mounted on the motor base; the lateral adjustment mechanism and the sawing spindle assembly are covered by a detachable split sheet metal cover; the electrical wiring of the servo motor, the lateral adjustment mechanism, and the sawing spindle assembly is configured in a steel cable chain; several layers of steel armor covers are installed above the sawing feed screw, the lateral adjustment screw, the sawing feed guide rail, and the lateral adjustment guide rail.

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