Pull rod boring tool

By designing a tie rod boring tool with a base, bottom support, and tie rod positioning mechanism, the problems of insufficient positioning rigidity and complex disassembly were solved, achieving efficient positioning and disassembly, and improving machining accuracy and efficiency.

CN224373387UActive Publication Date: 2026-06-19SI CHUAN SHENG ZI YANG YU CAI JI XIE ZHI ZAO CHANG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SI CHUAN SHENG ZI YANG YU CAI JI XIE ZHI ZAO CHANG
Filing Date
2025-05-30
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing tie rod boring tools suffer from insufficient rigidity in the positioning system and production efficiency losses due to complex disassembly processes.

Method used

A tie rod boring tooling was designed, comprising a base, a bottom support mechanism, and a tie rod positioning mechanism. It employs a vertical positioning plate, a clamping mechanism, and a flexible positioning sleeve, and is clamped by support screws and top bolts. Reinforcing ribs are used to increase stability. The clamping mechanism is located between the bearing platforms, and the flexible positioning sleeve is used to prevent crushing damage.

Benefits of technology

It achieves efficient positioning and disassembly, improves machining accuracy and production efficiency, and reduces dimensional deviations caused by clamping deformation.

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Abstract

The utility model discloses a draw -in bar boring frock relates to draw -in bar hole processing auxiliary technical field. The utility model discloses a base, the top surface of base is installed with bottom surface support mechanism and draw -in bar positioning mechanism, the draw -in bar positioning mechanism includes vertical positioning board, be provided with the horizontal through positioning hole on the positioning board, the top surface structure of positioning board has the pressing mechanism, and the pressing end of pressing mechanism is parallel with positioning board and is away from positioning board setting, bottom surface support mechanism includes the pair of bearing station of installing in the top surface of base, the top surface of bearing station is installed with vertical board, and the vertical board is away from another bearing station setting, and the bearing station is installed with support screw, and the vertical board is installed with top contact bolt, with solve the positioning failure of the rigidity deficiency of current draw -in bar boring frock positioning system to lead to the problem of complex dismounting process.
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Description

Technical Field

[0001] This utility model relates to the field of auxiliary technology for tie rod hole processing, specifically, it is a tie rod boring tool. Background Technology

[0002] Boring fixtures are specialized jigs used for machining hole-type parts. Their design and use play a decisive role in improving machining accuracy, efficiency, and stability. In the field of mechanical manufacturing, boring fixtures, through precise positioning and reliable clamping systems, can effectively control the workpiece's degrees of freedom during machining, reducing dimensional deviations caused by clamping deformation. Tie rod boring fixtures are a typical application, specifically designed for tie rod-type parts in critical components such as engines and gearboxes. By precisely controlling the coaxiality and parallelism of the pin holes, they can effectively solve systematic machining defects such as excessive axial offset and end face perpendicularity errors found in traditional machining.

[0003] However, existing tie rod boring tools have many problems, such as positioning failure due to insufficient rigidity of the positioning system, or production efficiency loss due to complex disassembly processes. Utility Model Content

[0004] The purpose of this utility model is to provide a tie rod boring tool to solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention adopts the following technical means:

[0006] A tie rod boring tool includes a base, on the top surface of which a bottom support mechanism and a tie rod positioning mechanism are mounted;

[0007] The pull rod positioning mechanism includes a vertical positioning plate with a horizontally penetrating positioning hole. The top surface of the positioning plate is equipped with a pressing mechanism, and the pressing end of the pressing mechanism is parallel to and away from the positioning plate.

[0008] The bottom support mechanism includes a pair of support platforms installed on the top surface of the base. A vertical plate is installed on the top surface of the support platform. The vertical plate is located away from the other support platform. Support screws are installed on the support platform, and top bolts are installed on the vertical plate.

[0009] Preferably, a reinforcing rib is installed on the side of the positioning plate facing away from the bottom support mechanism.

[0010] Furthermore, the clamping mechanism includes a first screw detachably connected to the top side of the positioning plate, a shoulder nut being installed at the end of the first screw away from the positioning plate, and a pressure plate serving as the clamping end being movably installed on the first screw, with the shoulder nut abutting against the pressure plate.

[0011] Furthermore, a connecting block is movably mounted on the bottom surface of the pressure plate via a pin. A second screw is rotatably mounted on the side of the connecting block facing the positioning plate. The second screw is horizontally positioned and threadedly connected to the side wall of the positioning plate. The first screw and the second screw are horizontally positioned. A U-shaped groove is constructed on the top surface of the pressure plate, and the first screw is embedded in the U-shaped groove.

[0012] Furthermore, the clamping mechanism is located between the two support platforms.

[0013] Furthermore, a flexible positioning sleeve is coaxially installed inside the positioning hole.

[0014] This utility model has the following beneficial effects during use:

[0015] The part to be processed is placed on the bottom support mechanism and leveled using support screws, then clamped with two top bolts. The part is then inserted into the positioning hole, allowing the positioning plate to abut against the part's positioning surface. Simultaneously, the clamping mechanism presses against the part, achieving clamping and positioning. After processing, the part can be disassembled simply by releasing the clamping mechanism. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model.

[0017] Figure 2 This is a side view of the structure of this utility model.

[0018] Figure 3 This is a top view of the structure of this utility model.

[0019] Among them, 1-base, 2-positioning plate, 3-positioning hole, 4-bearing platform, 5-vertical plate, 6-support screw, 7-top bolt, 8-reinforcing rib plate, 9-first screw, 10-shoulder nut, 11-pressure plate, 12-connecting block, 13-second screw, 14-flexible positioning sleeve. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please refer to Figures 1 to 3 As shown, a tie rod boring tool includes a base 1, on the top surface of which a bottom support mechanism and a tie rod positioning mechanism are mounted;

[0027] The pull rod positioning mechanism includes a vertical positioning plate 2, on which a horizontally penetrating positioning hole 3 is provided. A pressing mechanism is constructed on the top surface of the positioning plate 2, and the pressing end of the pressing mechanism is parallel to and away from the positioning plate 2.

[0028] The bottom support mechanism includes a pair of support platforms 4 installed on the top surface of the base 1. A vertical plate 5 is installed on the top surface of the support platform 4. The vertical plate 5 is located away from the other support platform 4. Support screws 6 are installed on the support platform 4. Top bolts 7 are installed on the vertical plate 5.

[0029] In this way, the part to be processed is placed on the bottom support mechanism and leveled using the support screws 6, and then clamped using the two top bolts 7. The part is then inserted into the positioning hole 3, so that the positioning plate 2 abuts against the part's positioning surface. Simultaneously, the clamping mechanism presses against the part, achieving clamping and positioning of the part. Furthermore, after processing, the part can be disassembled simply by releasing the clamping mechanism.

[0030] Specifically, in order to increase the installation stability of the positioning plate 2, a reinforcing rib plate 8 is installed on the side of the positioning plate 2 facing away from the bottom support mechanism.

[0031] Furthermore, the reinforcing rib 8 is a triangular plate, and the inclined surface of the reinforcing rib 8 is set away from the positioning plate 2.

[0032] Furthermore, the clamping mechanism includes a first screw 9 detachably connected to the top side of the positioning plate 2. A shoulder nut 10 is installed at the end of the first screw 9 away from the positioning plate 2. A pressure plate 11, which serves as the clamping end, is movably installed on the first screw 9. The shoulder nut 10 abuts against the pressure plate 11.

[0033] In this way, by adjusting the position of the shoulder nut 10, the pressure plate 11 can be engaged with the positioning plate 2 to position the workpiece by utilizing the contact between the shoulder nut 10 and the pressure plate 11. Moreover, the first screw 9 is designed to engage with the support platform 4 to prevent accidental up-and-down movement of the parts.

[0034] Furthermore, a connecting block 12 is movably mounted on the bottom surface of the pressure plate 11 via a pin. A second screw 13 is rotatably mounted on the side of the connecting block 12 facing the positioning plate 2. The second screw 13 is horizontally arranged and threadedly connected to the side wall of the positioning plate 2. The first screw 9 is horizontally arranged with the second screw 13. The top surface of the pressure plate 11 is constructed with a U-shaped groove, and the first screw 9 is embedded in the U-shaped groove.

[0035] In this way, for the positioning of the pressure plate 11, the second screw 13 can be installed first, and then the connecting block 12 and the pressure plate 11 can be connected by a pin. By rotating the pressure plate 11, the U-shaped groove can be fitted with the first screw 9. Then, the shoulder nut 10 can be installed to complete the pressing of the part by the pressure plate 11.

[0036] Furthermore, the clamping mechanism is located between the two support platforms 4.

[0037] Furthermore, to prevent damage to the part from compression between the part and the positioning plate 2 when the part is installed and positioned, a flexible positioning sleeve 14 is coaxially installed inside the positioning hole 3.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tie rod boring tool, characterized in that, Includes a base (1), the top surface of which is equipped with a bottom support mechanism and a tie rod positioning mechanism; The pull rod positioning mechanism includes a vertical positioning plate (2), on which a horizontally penetrating positioning hole (3) is provided. The top surface of the positioning plate (2) is constructed with a pressing mechanism, and the pressing end of the pressing mechanism is parallel to the positioning plate (2) and far away from the positioning plate (2). The bottom support mechanism includes a pair of support platforms (4) installed on the top surface of the base (1). A vertical plate (5) is installed on the top surface of the support platform (4). The vertical plate (5) is located away from the other support platform (4). Support screws (6) are installed on the support platform (4). Top bolts (7) are installed on the vertical plate (5).

2. The tie rod boring tool according to claim 1, characterized in that, The positioning plate (2) has a reinforcing rib plate (8) installed on the side facing away from the bottom support mechanism.

3. The tie rod boring tool according to claim 1, characterized in that, The clamping mechanism includes a first screw (9) detachably connected to the top side of the positioning plate (2). A shoulder nut (10) is installed at one end of the first screw (9) away from the positioning plate (2). A pressure plate (11) serving as the clamping end is movably installed on the first screw (9). The shoulder nut (10) abuts against the pressure plate (11).

4. The tie rod boring tool according to claim 3, characterized in that, A connecting block (12) is movably installed on the bottom surface of the pressure plate (11) via a pin. A second screw (13) is rotatably installed on the side of the connecting block (12) facing the positioning plate (2). The second screw (13) is horizontally arranged and threadedly connected to the side wall of the positioning plate (2). The first screw (9) and the second screw (13) are horizontally arranged. A U-shaped groove is constructed on the top surface of the pressure plate (11). The first screw (9) is embedded in the U-shaped groove.

5. A tie rod boring tool according to claim 4, characterized in that, The clamping mechanism is located between the two bearing platforms (4).

6. The tie rod boring tool according to claim 1, characterized in that, A flexible positioning sleeve (14) is coaxially installed inside the positioning hole (3).