Internal and external thread repair positioner

Abstract

The application discloses an inner and outer thread repair positioner, relates to the field of machining and maintenance tools, and in particular to an inner and outer thread repair positioner, which comprises an inner thread mounting seat and an outer thread mounting seat. An inner thread plug gauge is arranged on the inner side of the inner thread mounting seat, and an inner thread pointer is arranged on the end face of the inner thread mounting seat; the inner thread plug gauge and the inner thread pointer are fixed with the mounting seat through inner thread jackscrews. An outer thread ring gauge is arranged on the inner side of the outer thread mounting seat, an outer thread pointer and a screw rod to be repaired are arranged on the end face of the outer thread mounting seat, and the three are fixed through outer thread jackscrews. The inner and outer thread ring gauges are precisely matched with the inner and outer thread sections of a workpiece respectively to realize initial positioning, the pointers indicate the relative positions, and the jackscrews ensure the stability of positioning. The screw rod to be repaired is guided to be aligned with the original thread axis through the outer thread ring gauge, and the inner and outer mounting seats are positioned through the plug gauge cooperation to realize double positioning, so that the positioning precision and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of machining and repair tools, specifically to a locator for repairing internal and external threads. Background Technology

[0002] Threaded connections are widely used in mechanical manufacturing and equipment maintenance. Prolonged use or improper operation can damage the threads on workpieces, requiring repair. Existing thread repair methods mainly fall into two categories: one is rework using CNC machine tools, which relies on the operator's experience and repeated program adjustments, resulting in low efficiency and high skill requirements; the other is repair using hand tools such as dies or taps, which makes it difficult to guarantee concentricity with the original thread axis, easily leading to quality problems such as damaged threads and eccentricity.

[0003] Currently, there is a lack of a dedicated device that can quickly and accurately achieve "angular positioning" and "rapid thread alignment" in the thread repair process, resulting in low repair efficiency and unstable quality. Summary of the Invention

[0004] The purpose of this invention is to provide a locator for repairing internal and external threads. By precisely engaging the internal and external thread mounting seats with the internal and external thread sections of the workpiece for positioning, and combining the position indicated by the pointer and the fixing plug gauge with the set screw, the screw to be repaired is accurately aligned with the original thread axis, achieving stable and reliable dual positioning and improving repair accuracy and efficiency.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: an internal and external thread repair locator, comprising an internal thread mounting base and an external thread mounting base.

[0006] The inner side of the internal thread mounting base is provided with an internal thread plug gauge, and the end face of the internal thread mounting base is provided with an internal thread pointer. The internal thread mounting base, the internal thread plug gauge and the internal thread pointer are fixed together by an internal thread set screw.

[0007] The inner side of the external thread mounting base is provided with an external thread ring gauge, and the end face of the external thread mounting base is provided with an external thread pointer. The external thread mounting base, the external thread ring gauge and the external thread pointer are fixed together by an external thread set screw. The end face of the external thread ring gauge is used to connect the screw to be repaired.

[0008] Furthermore, the internal thread mounting seat achieves initial positioning by precisely engaging with the internal thread section of the workpiece using an internal thread plug gauge.

[0009] Furthermore, the internal thread pointer is used to indicate the relative position of the internal thread mounting seat and the internal thread segment of the workpiece.

[0010] Furthermore, the internal thread set screw is used to fix the position of the internal thread plug gauge in the internal thread mounting seat.

[0011] Furthermore, the external thread mounting base achieves initial positioning by precisely engaging with the external thread section of the workpiece using an external thread ring gauge.

[0012] Furthermore, the external thread pointer is used to indicate the relative position of the external thread mounting seat and the external thread segment of the workpiece.

[0013] Furthermore, the external thread set screw is used to fix the position of the external thread ring gauge in the external thread mounting seat.

[0014] Furthermore, the screw to be repaired is precisely aligned with the original thread axis by being guided by an external thread ring gauge.

[0015] Furthermore, the internal thread mounting seat and the external thread mounting seat are respectively engaged with the internal and external thread sections of the workpiece through their respective internal and external thread ring gauges to achieve dual positioning.

[0016] Furthermore, the internal thread pointer and the external thread pointer are used to mark the relative positions of the internal thread mounting base and the external thread mounting base with respect to the threaded section of the workpiece, respectively.

[0017] This invention provides a repair locator for internal and external threads, which has the following advantages: 1. This positioner achieves rapid centering and thread alignment by precisely matching the internal thread plug gauge, external thread ring gauge, and intact thread section of the workpiece. It simplifies the complex trial cutting and tool setting to marking alignment, greatly improving the efficiency and accuracy of batch rework.

[0018] This positioner uses a pointer to intuitively indicate the relative position, reducing the skill requirements for operators. Ordinary workers can complete high-quality rework after a short training.

[0019] The dual positioning mechanism ensures that the repaired thread is highly aligned with the original thread axis, fundamentally avoiding common quality problems such as rotten threads and eccentricity in manual repairs.

[0020] By replacing the ring gauge or plug gauge with different sizes, this device can be used to repair a variety of threads, reducing tooling costs. Attached Figure Description

[0021] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the internal thread repair locator of the present invention; Figure 2This is a schematic diagram of the planar structure of the internal thread repair locator of the present invention; Figure 3 This is a schematic diagram of the external thread repair locator of the present invention; Figure 4 This is a schematic diagram of the planar structure of the external thread repair locator of the present invention.

[0023] Part Name: 1. Internal thread mounting base; 2. Internal thread plug gauge; 3. Internal thread pointer; 4. Internal thread set screw; 5. External thread mounting base; 6. External thread ring gauge; 7. External thread pointer; 8. External thread set screw; 9. Screw to be repaired. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] How to use: Preparation: Confirm that all components—internal thread mounting base 1, internal thread plug gauge 2, internal thread pointer 3, internal thread set screw 4, external thread mounting base 5, external thread ring gauge 6, external thread pointer 7, and external thread set screw 8—are in good condition. Select the appropriate internal or external thread locating assembly based on the thread type of the workpiece to be repaired.

[0027] Internal thread positioning: Insert the internal thread plug gauge 2 into the inside of the internal thread mounting seat 1, and tighten the internal thread set screw 4 to fix it.

[0028] External thread positioning: Insert the external thread ring gauge 6 into the inner side of the external thread mounting seat 5, tighten the external thread set screw 8 to fix it, and connect the screw 9 to be repaired to the end face of the external thread ring gauge 6.

[0029] Initial positioning and marking: Fit the assembled positioning component onto the threaded section of the workpiece to be repaired. Achieve initial positioning by precisely fitting the internal thread plug gauge 2 or the external thread ring gauge 6 with the workpiece threaded section. Adjust the internal thread pointer 3 or the external thread pointer 7 to accurately indicate the relative position of the mounting base and the workpiece threaded section, and mark the corresponding position on the machine tool fixture.

[0030] Batch repair positioning: After replacing the workpiece to be repaired, the positioning component is aligned with the threaded section of the workpiece according to the previously marked position, and the initial positioning state is reproduced by the pointer position. Under the guidance of the external thread ring gauge 6, the screw 9 to be repaired achieves precise alignment with the original thread axis.

[0031] Dual positioning (when applicable): If the workpiece needs to be repaired by both internal and external threads at the same time, the internal and external thread positioning components are respectively matched with the internal and external thread sections of the workpiece. The concentricity and positional accuracy of the repair are ensured through double precision matching.

[0032] Example 1: Internal Thread Repair and Positioning This embodiment provides a positioning operation for internal thread repair.

[0033] First, insert the internal thread plug gauge 2 into the inside of the internal thread mounting base 1 and tighten the internal thread set screw 4 to secure it. Then, fit the assembled internal thread positioning assembly onto the internal thread section of the workpiece to be repaired. Through the precise fit between the internal thread plug gauge 2 and the internal thread section of the workpiece, the internal thread mounting base 1 is initially positioned. Adjust the internal thread pointer 3 to accurately indicate the relative position of the internal thread mounting base 1 and the internal thread section of the workpiece, and mark the corresponding position on the machine tool fixture. For subsequent batch repairs, simply fit the workpiece thread section to be repaired onto the internal thread positioning assembly and fix the part at the previously marked position to quickly reproduce the initial positioning state and perform the repair work.

[0034] Example 2: External Thread Repair and Positioning This embodiment provides a positioning operation for external thread repair.

[0035] First, insert the external thread ring gauge 6 into the inner side of the external thread mounting base 5 and tighten the external thread set screw 8 to secure it. Then, align the screw 9 to be repaired with the end face of the external thread ring gauge 6. Next, fit the assembled external thread positioning assembly onto the external thread section of the workpiece to be repaired. Through the precise fit between the external thread ring gauge 6 and the external thread section of the workpiece, the external thread mounting base 5 is initially positioned. Simultaneously, the screw 9 to be repaired is precisely aligned with the original thread axis of the workpiece under the guidance of the external thread ring gauge 6. Adjust the external thread pointer 7 to indicate the relative position and mark the positioning. For subsequent batch repairs, simply fit the thread section to be repaired onto the external thread positioning assembly and fix the parts at the previously marked position to quickly reproduce the initial positioning state and perform the repair work.

[0036] Example 3: Dual positioning of internal and external threads This embodiment is applicable to workpieces that require repair of both internal and external threads.

[0037] Following the methods of Embodiments 1 and 2 respectively, the internal thread positioning assembly and the external thread positioning assembly are fitted to the internal and external thread sections of the workpiece. The internal thread mounting seat 1 and the external thread mounting seat 5 are fitted to the thread section of the workpiece through their respective thread ring gauges to achieve dual positioning of the workpiece, ensuring the overall concentricity and positional accuracy of the internal and external threads during rework.

[0038] Example 4: Batch Rework Location Operation Procedure This embodiment provides a method for performing batch thread repair using the device of the present invention.

[0039] First, the reference positioning part of the locator (i.e., the combination of internal thread mounting seat 1 and internal thread plug gauge 2, or the combination of external thread mounting seat 5 and external thread ring gauge 6) is fitted and fixed to the intact reference section on the workpiece, and a mark is made at the corresponding position on the machine tool fixture using the internal thread pointer 3 or the external thread pointer 7. Then, the threaded part to be repaired is replaced. The operator only needs to align the pointer of the positioning tool with the pre-made mark to perform the repair machining along the correct trajectory.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A box and pin repair locator comprising a box mount (1) and a pin mount (5) characterised in that: The inner side of the internal thread mounting base (1) is provided with an internal thread plug gauge (2), the end face of the internal thread mounting base (1) is provided with an internal thread pointer (3), and an internal thread set screw (4) is provided between the internal thread mounting base (1), the internal thread plug gauge (2) and the internal thread pointer (3). The inner side of the external thread mounting base (5) is provided with an external thread ring gauge (6), the end face of the external thread mounting base (5) is provided with an external thread pointer (7), an external thread set screw (8) is provided between the external thread mounting base (5), the external thread ring gauge (6) and the external thread pointer (7), and a screw to be repaired (9) is provided on the end face of the external thread ring gauge (6).

2. The pin and box repair locator of claim 1, wherein: The internal thread mounting base (1) is precisely fitted with the internal thread section of the workpiece by the internal thread plug gauge (2) to achieve initial positioning.

3. The pin and box repair locator of claim 1, wherein: The internal thread pointer (3) is used to indicate the relative position of the internal thread mounting base (1) and the internal thread segment of the workpiece.

4. The pin and box repair locator of claim 1, wherein: The internal thread set screw (4) is used to fix the position of the internal thread plug gauge (2) in the internal thread mounting seat (1).

5. The internal and external thread repair locator according to claim 1, characterized in that: The external thread mounting base (5) is precisely fitted with the external thread section of the workpiece by an external thread ring gauge (6) to achieve initial positioning.

6. The internal and external thread repair locator according to claim 1, characterized in that: The external thread pointer (7) is used to indicate the relative position of the external thread mounting base (5) and the external thread segment of the workpiece.

7. The internal and external thread repair locator according to claim 1, characterized in that: The external thread set screw (8) is used to fix the position of the external thread ring gauge (6) in the external thread mounting seat (5) to ensure the stability of the positioning.

8. The internal and external thread repair locator according to claim 1, characterized in that: The screw (9) to be repaired is precisely aligned with the original thread axis by the guidance of the external thread ring gauge (6).

9. The internal and external thread repair locator according to claim 1, characterized in that: The internal thread mounting base (1) and the external thread mounting base (5) are respectively engaged with the internal and external thread sections of the workpiece through their respective internal and external thread ring gauges to achieve dual positioning.

10. The internal and external thread repair locator according to claim 1, characterized in that: The internal thread pointer (3) and external thread pointer (7) are used to mark the relative positions of the internal thread mounting base (1) and the external thread mounting base (5) with the workpiece thread segment, respectively.

Images