A vertical boring fixture for electric steering gear nut

Abstract

The utility model discloses a vertical boring anchor clamps for electric power steering gear nut relates to electric power steering gear processing technical field. The utility model discloses a bottom plate, the left part fixed with bottom piece of bottom plate upper end, the right part bolt connection with the symmetrical setting guide seat of bottom piece of bottom plate upper end, the inside slide of guide groove is provided with the pressure rod, and the end of pressure rod near bottom piece swing joint has the pressure head of V -shaped, and the end face of bottom piece relative pressure rod is recessed position bolt and is provided with V -shaped seat, and the side surface bolt connection has the tooth part locating block of V -shaped recessed position one side of V -shaped seat, and the other side surface bolt connection has the side block, and the bottom plate upper end surface between V -shaped seat and pressure head is provided with spring, and the end face of guide seat away from bottom piece is provided with the pneumatic cylinder of bottom plate bolt connection. The utility model discloses through the cooperation of tooth part locating block, side block, pressure head and spring, prevents the nut from rotating or deviating in the processing, and the spring automatically ejects the nut upward simultaneously, and the workpiece is convenient for quick removal.

Description

Technical Field

[0001] This utility model belongs to the field of electric steering gear processing technology, and in particular relates to a vertical boring jig for electric steering gear nuts. Background Technology

[0002] With the rapid development of the automotive industry towards electrification, intelligence, and lightweighting, electric power steering (EPS) systems have gradually replaced traditional hydraulic power steering systems and become standard equipment in passenger cars due to their significant advantages such as energy saving, flexibility, and ease of implementing intelligent driving functions. The electric power steering unit is the core actuator of the EPS system, and the steering nut is one of its key precision parts. It is responsible for converting the rotational motion of the motor into the linear motion of the rack through the recirculating ball structure, thereby driving the wheels to turn. In the machining process of the nut, the boring of the inner hole is a crucial process, which lays the benchmark and foundation for subsequent internal thread grinding or hard milling. The accuracy of this process directly determines the core performance of the final product. To meet the high-precision and high-efficiency mass production requirements of electric power steering nut, it is necessary to use appropriate boring machining fixtures.

[0003] In existing nut boring processes, specialized jigs are commonly used for positioning and clamping. However, these jigs have several drawbacks: First, for nuts with toothed or irregular shapes, conventional clamping methods struggle to achieve rapid and accurate circumferential positioning. During machining, the nut is prone to rotation or slight displacement, leading to deviations in the boring position and resulting in defective products. Furthermore, after machining, the workpiece is typically still tightly clamped, requiring manual removal by the operator. This not only increases operation time and reduces production efficiency but also poses safety hazards in high-temperature or continuous machining environments. Therefore, we provide a vertical boring jig for electric steering gear nuts to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a vertical boring fixture for electric steering gear nuts. Through the coordinated use of toothed positioning blocks, side blocks, pressure heads and springs, the nut is prevented from rotating or shifting during processing. At the same time, the spring automatically pushes the nut upwards, making it easy to quickly remove the workpiece.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a vertical boring jig for electric steering gear nuts, comprising a base plate; a base block is fixed to the left part of the upper end of the base plate, and a guide seat symmetrically arranged with the base block is bolted to the right part of the upper end of the base plate. A guide groove is opened through the side wall of the guide seat relative to the base block, and a pressure rod is slidably arranged inside the guide groove. A V-shaped pressure head is movably connected to the end of the pressure rod near the base block. A V-shaped seat is bolted to the concave end face of the base block relative to the pressure rod. A toothed positioning block is bolted to one side of the concave V-shaped position of the V-shaped seat, and a side block is bolted to the other side. A spring is provided on the upper end face of the base plate between the V-shaped seat and the pressure head, and a cylinder is bolted to the end face of the guide seat away from the base block.

[0006] The present invention is further configured such that a T-shaped groove penetrating the upper and lower surfaces of the pressure rod is provided on the end face of the pressure rod near the cylinder, and a connector located inside the T-shaped groove is bolted to the piston end of the cylinder.

[0007] The present invention is further configured such that a rotating opening is provided on the end face of the pressure rod near the V-shaped seat, and the rotating part of the middle part of the pressure head is located inside the rotating opening. The pressure rod and the pressure head are combined by a rotating shaft screw.

[0008] The present invention is further configured such that both ends of the toothed positioning block away from the V-shaped seat are provided with protrusions, and two symmetrical measuring rods are provided on the end face of the toothed positioning block away from the V-shaped seat, and the two measuring rods rotate through the protrusions.

[0009] The present invention is further configured such that an inner bushing is bolted to the upper end face of the base plate, and a spring is sleeved on the inner bushing.

[0010] This utility model has the following beneficial effects: The fixture adopts a combination structure of V-shaped seat, toothed positioning block and side block, and works with V-shaped pressure head to achieve multi-point contact positioning of nut, which can accurately fix the position of nut and prevent it from rotating or shifting during processing, ensuring the accuracy of boring position, improving processing accuracy and product consistency. At the same time, after processing is completed, the cylinder retracts, the pressure head is released, and the spring automatically pushes the nut upward, which is convenient for quick removal of workpiece, significantly improving part change efficiency and making it suitable for mass production. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is an exploded view of the structure of the cylinder, guide seat, and pressure rod in this utility model.

[0014] Figure 3 This is a structural diagram of the V-shaped seat in this utility model.

[0015] Figure 4 This is a structural diagram of the base plate in this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Base plate; 101. Inner bushing; 102. Spring; 2. Cylinder; 201. Connector; 3. Guide seat; 301. Guide groove; 4. Base block; 5. V-shaped seat; 501. Toothed positioning block; 502. Measuring bar; 503. Side block; 6. Pressure rod; 601. T-slot; 602. Pressure head; 603. Rotary shaft screw; 604. Rotary opening. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 4 This utility model relates to a vertical boring jig for electric steering gear nuts, comprising a base plate 1. The base plate 1 serves as the mounting foundation for the entire jig, providing a stable support platform for easy installation of the jig on processing equipment. A base block 4 is fixed to the upper left portion of the base plate 1. The base block 4 supports and mounts a V-shaped seat 5, forming a clamping area with a guide seat 3. A guide seat 3, symmetrically arranged with the base block 4, is bolted to the upper right portion of the base plate 1. A guide groove 301 is formed through the side wall of the guide seat 3 opposite to the base block 4. The guide groove 301 is used for... The guide rod 6 is slidably installed inside the guide groove 301 to ensure the accurate direction of the clamping force. The end of the guide rod 6 near the bottom block 4 is movably connected to a V-shaped pressure head 602. A V-shaped seat 5 is bolted to the concave end face of the bottom block 4 relative to the end face of the guide rod 6. A toothed positioning block 501 is bolted to one side of the V-shaped concave position of the V-shaped seat 5, and a side block 503 is bolted to the other side. The cooperation of the pressure head 602, the toothed positioning block 501 and the side block 503 is used to accurately position the nut and prevent rotation. A spring 102 is provided on the upper surface of the base plate 1 located between the V-shaped seat 5 and the pressure head 602. When the nut is positioned between the toothed positioning block 501 and the pressure rod 6, the nut compresses the spring 102. At this time, the pressure head 602 is controlled to move towards the toothed positioning block 501, which can clamp the nut. Therefore, after the pressure head 602 and the toothed positioning block 501 loosen the nut, the spring 102 pushes the nut upward so that the nut can be removed. A cylinder 2 is bolted to the base plate 1 on the end face of the guide seat 3 away from the base block 4. The cylinder 2 serves as a power source, pushing the pressure rod 6 to control the movement of the pressure head 602, thereby achieving the clamping and loosening of the nut.

[0019] Specifically, the end face of the pressure rod 6 near the cylinder 2 is provided with a T-shaped groove 601 that runs through its upper and lower surfaces. The piston end of the cylinder 2 is bolted to a connector 201 located inside the T-shaped groove 601. The connector 201 is inserted into the T-shaped groove 601, allowing the pressure rod 6 and the connector 201 to be quickly disassembled. The pressure rod 6 has a rotating opening 604 on its end face near the V-shaped seat 5. The rotating part of the middle part of the pressure head 602 is located inside the rotating opening 604. The pressure rod 6 and the pressure head 602 are combined by a rotating shaft screw 603. The pressure head 602 and the pressure rod 6 can rotate to adapt to the shape of the nut and achieve uniform clamping. The toothed positioning block 501 has two protrusions on its end face away from the V-shaped seat 5. Two symmetrical measuring rods 502 are provided on the end face of the toothed positioning block 501 away from the V-shaped seat 5. The two measuring rods 502 rotate through the protrusions. The measuring rod 502 used is located in the tooth groove of the outer wall of the nut. Thus, after the pressure head 602, the toothed positioning block 501 and the side block 503 clamp the nut, the measuring rods 502 limit the nut and prevent the nut from moving up and down.

[0020] Furthermore, an inner bushing 101 is bolted to the upper end face of the base plate 1, and a spring 102 is sleeved on the inner bushing 101. The inner bushing 101 is used to prevent the spring 102 from deflecting and to ensure that the spring 102 moves in the same direction.

[0021] The operation process of this embodiment is as follows: the nut to be processed is placed between the tooth positioning block 501 and the pressure head 602, so that the nut teeth contact the tooth positioning block 501 and the side block 503 to complete the initial positioning, and the cylinder 2 is started. The piston pushes the pressure rod 6 to slide along the guide groove 301, thereby the pressure rod 6 pushes the pressure head 602 to rotate and press the nut. During the tightening process, the nut compresses the spring 102, positioning the nut precisely between the toothed positioning block 501 and the pressure head 602. At this point, boring can be performed. After machining, the cylinder 2 retracts, and the pressure head 602 releases the nut. As a result, the spring 102 pushes the nut upward, causing it to disengage from the position between the toothed positioning block 501 and the pressure head 602. This facilitates the removal of the machined nut for the next machining cycle.

[0022] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vertical boring jig for electric steering gear nuts, comprising a base plate (1); characterized in that: A base block (4) is fixed to the left side of the upper end of the base plate (1). A guide seat (3) is bolted to the right side of the upper end of the base plate (1) and is symmetrically arranged with the base block (4). A guide groove (301) is provided through the side wall of the guide seat (3) relative to the base block (4). A pressure rod (6) is slidably arranged inside the guide groove (301). A V-shaped pressure head (602) is movably connected to the end of the pressure rod (6) near the base block (4). The base block (4) is... A V-shaped seat (5) is bolted to the concave end face of the pressure rod (6). A toothed positioning block (501) is bolted to one side of the concave V-shaped seat (5), and a side block (503) is bolted to the other side. A spring (102) is provided on the upper end face of the base plate (1) located between the V-shaped seat (5) and the pressure head (602). A cylinder (2) is bolted to the base plate (1) on the end face of the guide seat (3) away from the base block (4).

2. The vertical boring fixture for an electric steering gear nut according to claim 1, characterized in that, The pressure rod (6) has a T-shaped groove (601) that runs through its upper and lower surfaces on the end face near the cylinder (2), and the piston end of the cylinder (2) is bolted to a connector (201) located inside the T-shaped groove (601).

3. A vertical boring fixture for an electric steering gear nut according to claim 2, characterized in that, The pressure rod (6) has a rotating opening (604) on its end face near the V-shaped seat (5). The rotating part of the middle part of the pressure head (602) is located inside the rotating opening (604). The pressure rod (6) and the pressure head (602) are combined by a rotating shaft screw (603).

4. A vertical boring fixture for an electric steering gear nut according to claim 1, characterized in that, The toothed positioning block (501) has two protrusions on its end face away from the V-shaped seat (5). The toothed positioning block (501) has two symmetrical measuring rods (502) on its end face away from the V-shaped seat (5). The two measuring rods (502) rotate through the protrusions.

5. A vertical boring fixture for an electric steering gear nut according to claim 1, characterized in that, The upper end face of the base plate (1) is bolted to an inner bushing (101), and the spring (102) is sleeved on the inner bushing (101).

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