Hydraulic fixture for milling steering nut

Abstract

The utility model discloses a kind of hydraulic clamps of steering gear nut milling tooth, related technical field of steering gear processing is disclosed.The utility model includes bottom plate;The upper end surface of bottom plate is provided with the fixed block and lining board distributed left and right, the upper end surface of lining board is provided with sliding block, and the end of lining board away from fixed block is provided with the hydraulic cylinder bolted with bottom plate, and the end surface of sliding block close to fixed block is bolted with movable forceps, and the recess of fixed block close to movable forceps is bolted with fixed forceps, and the upper end bolted with part backing plate on the bottom plate between fixed block and lining board, and the positioning screw is provided with above part backing plate directly.The utility model is positioned by the use of movable forceps, fixed forceps and positioning screw, so as to be slightly adjusted nut workpiece under the condition of nut workpiece positioning, ensure accurate machining to nut workpiece.

Description

Technical Field

[0001] This utility model belongs to the technical field of steering gear processing, and in particular relates to a hydraulic clamp for milling steering gear nuts. Background Technology

[0002] The steering nut is one of the core safety components in a car's steering system. Its function is to convert the rotational motion of the screw into the linear motion of the rack, thereby steering the wheels. The machining precision, consistency, and reliability of its teeth (usually sector teeth) directly affect the smoothness, accuracy, and driving safety of the steering. With the rapid development of the global automotive industry, the market has placed extremely high demands on the safety, comfort, and reliability of vehicles. At the same time, OEMs are becoming increasingly stringent in their requirements for the production efficiency and cost control of component suppliers. This forces component manufacturers to seek more efficient, precise, and stable processing methods to meet the demands of large-scale, high-quality production.

[0003] However, in practical applications, the aforementioned existing technologies and similar fixtures still have the following significant drawbacks: the fixtures lack an effective fine-tuning mechanism, and the axial position of the nut workpiece cannot be precisely controlled and adjusted after clamping. This leads to positioning deviations in different batches of workpieces due to dimensional tolerances, affecting the starting position and tooth depth of milling, making it difficult to guarantee machining consistency. Furthermore, for nut workpieces of different specifications or requiring a certain angle for machining specific tooth profiles, traditional fixtures have a fixed structure, are inconvenient to adjust, require replacement of the entire set of positioning elements, have long preparation times, and lack flexibility, making them unsuitable for flexible production needs involving multiple varieties and small batches. Therefore, we provide a hydraulic fixture for milling steering gear nuts to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic clamp for milling steering gear nuts. By using a movable clamp, a fixed clamp, and a positioning screw, the nut workpiece can be slightly adjusted while being positioned, thus ensuring precise machining of the nut workpiece.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a hydraulic clamp for milling gear teeth of steering gear nuts, including a base plate; the upper end face of the base plate is provided with a fixing block and a liner plate distributed on the left and right; the upper end face of the liner plate is provided with a slider; the end of the liner plate away from the fixing block is provided with a hydraulic cylinder bolted to the base plate; the end face of the slider near the fixing block is bolted to a movable clamp; the fixed block near the recess of the movable clamp is bolted to a fixed clamp; the upper end of the base plate located between the fixing block and the liner plate is bolted to a part pad; a positioning screw is provided directly above the part pad.

[0006] The present invention is further provided in that the end of the part pad is provided with an end positioning block that is bolted to the upper surface of the base plate, and the side wall of the end positioning block is provided with a through hole at the position of the positioning screw.

[0007] The present invention is further configured such that the positioning screw passes through the inside of the through hole, and a nut is screwed onto the positioning screw on the side of the end positioning block away from the part pad.

[0008] The present invention is further configured such that guide plates are bolted to the liner at both the front and rear positions of the slider, and the guide plates are L-shaped, with the protrusions on the front and rear sides of the slider sliding on the inner side of the corresponding guide plates.

[0009] The present invention is further configured such that the upper end bolt of the base plate is provided with a protective cover, and the protective cover is fitted onto the slider and the liner.

[0010] The present invention is further configured such that a T-shaped groove penetrating the upper and lower ends of the slider is provided on the end face of the slider near the hydraulic cylinder, and an I-shaped joint that slides in the T-shaped groove is bolted to the piston end of the hydraulic cylinder.

[0011] The present invention is further provided with a protruding part on the end face of the fixed clamp near the movable clamp.

[0012] The present invention has the following advantages: The present invention uses a hydraulic cylinder to drive a slider, which in turn drives the movable clamp and the fixed clamp to cooperate, thereby achieving bidirectional clamping of the nut workpiece. The clamping force is uniform and stable, effectively preventing the workpiece from shifting or vibrating during the milling process, ensuring machining accuracy. At the same time, the positioning screw cooperates with the part backing plate, and the installation depth of the workpiece can be adjusted according to the size of the nut to meet the machining needs of workpieces of different specifications. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a structural assembly diagram of the hydraulic cylinder and the liner in this utility model.

[0016] Figure 3 This is an exploded view of the hydraulic cylinder and liner plate in this utility model.

[0017] Figure 4This is an exploded view of the structure of the pad plate in this utility model.

[0018] The attached diagram lists the components represented by each number as follows: 1. Base plate; 2. Fixing block; 201. Fixing clamp; 3. Part backing plate; 301. End positioning block; 302. Positioning screw; 303. Through hole; 304. Nut; 4. Hydraulic cylinder; 401. Movable clamp; 402. Protective cover; 403. Sliding block; 404. T-slot; 405. I-shaped joint; 5. Liner plate; 501. Guide plate. Detailed Implementation

[0019] 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. Example

[0020] Please see Figures 1 to 4 This utility model is a hydraulic clamp for milling gear teeth of steering gear nuts, including a base plate 1; the base plate 1 serves as the basic platform of the clamp, used to support and fix all structures, and can ensure the stability and rigidity of the clamp during the processing. The upper end face of the base plate 1 is provided with left and right distributed fixing blocks 2 and liner plates 5. The liner plates 5 are used to support the slider 403 and guide plate 501, provide a reference plane for the movement of the slider 403, and ensure that the slider 403 moves smoothly. A slider 403 is provided on the upper end face of the liner 5. A hydraulic cylinder 4 is bolted to the base plate 1 at the end of the liner 5 away from the fixed block 2. A movable clamp 401 is bolted to the end face of the slider 403 near the fixed block 2. The hydraulic cylinder 4 serves as a power source, driving and controlling the slider 403 to move the movable clamp 401, thereby clamping or loosening the nut. The movement of the movable clamp 401 allows it to accommodate nut workpieces of different sizes. A fixed clamp 201 is bolted to the recess of the fixed block 2 near the movable clamp 401. A part pad 3 is bolted to the upper end of the base plate 1 located between the fixed block 2 and the liner 5. The part pad 3 is used to place the nut workpiece, providing support and ensuring that the workpiece remains horizontal and stable during processing. A positioning screw 302 is provided directly above the part pad 3. The positioning screw 302 can move above the part pad 3. By adjusting the extension length of the positioning screw 302, the installation depth of the workpiece can be controlled to ensure processing accuracy and thus adapt to different workpieces.

[0021] Specifically, guide plates 501 are bolted to the liner 5 at both the front and rear positions of the slider 403, and the guide plates 501 are L-shaped. The protrusions on the front and rear sides of the slider 403 slide on the inner side of the corresponding guide plates 501. The guide plates 501 are used to guide the movement direction of the slider 403, prevent the slider 403 from deviating or tilting during movement, and ensure clamping accuracy. The upper end of the base plate 1 is bolted with a protective cover 402. The protective cover 402 is sleeved on the slider 403 and the liner 5. The protective cover 402 is used to protect the structure from contamination by chips, coolant, etc., to extend the service life of the fixture and improve safety. The end face of the slider 403 near the hydraulic cylinder 4 has a T-shaped groove 404 that runs through the upper and lower ends of the slider 403. The piston end of the hydraulic cylinder 4 is bolted to an I-shaped connector 405 that slides in the T-shaped groove 404. The quick-release connection between the I-shaped connector 405 and the T-shaped groove 404 compensates for the installation error between the hydraulic cylinder 4 and the slider 403, ensures smooth power transmission, and facilitates quick assembly and disassembly of the two.

[0022] The end of the part pad 3 is provided with an end positioning block 301 that is bolted to the upper end face of the base plate 1. The side wall of the end positioning block 301 is provided with a through hole 303 at the position of the positioning screw 302. The positioning screw 302 passes through the inside of the through hole 303. A nut 304 is screwed on the positioning screw 302 on the side of the end positioning block 301 away from the part pad 3. The end positioning block 301 is used to limit the positioning screw 302, and the through hole 303 is provided for the positioning screw 302 to pass through. The nut 304 ensures the extension length of the positioning screw 302 through the through hole 303.

[0023] Furthermore, the fixed clamp 201 has a protruding part on the end face near the movable clamp 401. When the nut workpiece is placed on the part pad 3, the protruding part abuts against the upper part of the nut workpiece to prevent the nut workpiece from tilting up.

[0024] The operation process of this embodiment is as follows: First, the base plate 1 is fixed to the milling machine worktable with bolts, and the hydraulic cylinder 4 is connected to the hydraulic system. The nut workpiece is placed on the part pad 3 so that the nut workpiece is initially connected to the fixed clamp 201. Then, the hydraulic cylinder 4 is started, and the I-shaped joint 405 pushes the slider 403 to slide along the guide plate 501. The slider 403 directly drives the movable clamp 401 to connect with the nut workpiece. Thus, the movable clamp 401 and the fixed clamp 201 jointly fix the nut workpiece, which can ensure that the workpiece is stable and does not move during the processing. Once the nut workpiece is clamped, the extension length of the positioning screw 302 from the through hole 303 can be controlled, thereby pushing the nut workpiece to slide on the part pad 3. The position of the nut workpiece can be slightly adjusted for processing.

[0025] 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.

[0026] 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 hydraulic clamp for milling gear teeth of a steering gear nut, comprising a base plate (1); characterized in that: The upper surface of the base plate (1) is provided with a fixing block (2) and a liner (5) distributed on the left and right. The upper surface of the liner (5) is provided with a slider (403). The end of the liner (5) away from the fixing block (2) is provided with a hydraulic cylinder (4) bolted to the base plate (1). The end of the slider (403) near the fixing block (2) is bolted with a movable clamp (401). The recess of the fixing block (2) near the movable clamp (401) is bolted with a fixing clamp (201). The upper end of the base plate (1) between the fixing block (2) and the liner (5) is bolted with a part pad (3). The part pad (3) is provided with a positioning screw (302) directly above it.

2. The hydraulic clamp for milling gears in a steering gear nut according to claim 1, characterized in that, The end of the part pad (3) is provided with an end positioning block (301) that is bolted to the upper end face of the base plate (1), and the side wall of the end positioning block (301) is provided with a through hole (303) at the position of the positioning screw (302).

3. A hydraulic clamp for milling gears in a steering gear nut according to claim 2, characterized in that, The positioning screw (302) passes through the inside of the through hole (303), and a nut (304) is screwed onto the positioning screw (302) on the side of the end positioning block (301) away from the part pad (3).

4. A hydraulic clamp for milling gears in a steering gear nut according to claim 1, characterized in that, Guide plates (501) are bolted to the liner (5) at both the front and rear positions of the slider (403), and the guide plates (501) are L-shaped. The protrusions on the front and rear sides of the slider (403) slide on the inner side of the corresponding guide plates (501).

5. A hydraulic clamp for milling gears in a steering gear nut according to claim 4, characterized in that, The upper end of the base plate (1) is bolted with a protective cover (402), which is fitted onto the slider (403) and the liner (5).

6. A hydraulic clamp for milling gears in a steering gear nut according to claim 4, characterized in that, The slider (403) has a T-shaped groove (404) that runs through the upper and lower ends of the slider (403) on the end face near the hydraulic cylinder (4), and the piston end of the hydraulic cylinder (4) is bolted to an I-shaped joint (405) that slides in the T-shaped groove (404).

7. A hydraulic clamp for milling gears in a steering gear nut according to claim 1, characterized in that, The fixed clamp (201) has a protruding part on the end face near the movable clamp (401).

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