A hole-reaming and straightening component for a non-destructive bolt removal repair tool

Abstract

This utility model relates to the field of bolt hole repair, and discloses a hole-reaming and straightening component for a non-destructive bolt disassembly repair tool. It includes a positioning sleeve, a fixing component on the lower surface of the positioning sleeve, a positioning component on the outer wall of the positioning sleeve, and a locking component on the outer wall of the positioning sleeve. The positioning component includes a guide plate rotatably connected to the outer wall of the positioning sleeve, a sliding sleeve inserted into the inner wall of the guide plate, a bearing installed on the inner wall of the sliding sleeve, and a hole-reaming component on the inner wall of the sliding sleeve. The hole-reaming component includes a support rod inserted into the inner wall of the sliding sleeve, and a connector fixedly connected to the upper end of the support rod. In this utility model, by setting the positioning component, during hole-reaming operations, the positioning sleeve can be fixed to the outer wall of the workpiece first using the fixing component, and then the guide plate can be rotated or the sliding sleeve moved to change the position of the sliding sleeve. Once the sliding sleeve is aligned with the threaded hole position...

Description

Technical Field

[0001] This utility model relates to the field of bolt hole repair, and in particular to a hole enlarging and straightening component for a non-destructive bolt disassembly repair tool. Background Technology

[0002] Threaded grooves and bolts are commonly used fits in mechanical connections. They achieve functions such as fastening and positioning through mutual fit and have wide applications in many fields. However, in the current technology, the internal threads on the inner wall of the threaded groove are prone to damage during use, which requires repair.

[0003] In existing technologies, repair generally involves steps such as hole reaming and straightening, and installation of threaded sleeves. Among these, hole reaming and straightening is the most critical, as the correctness of the reaming position is closely related to subsequent repairs. When repairing small workpieces, a milling machine can be used to complete the hole reaming and straightening. However, large workpieces are inherently difficult to move, and can only be reamed by the operator using a hand drill to rotate the reaming head. However, when manually reaming, the reaming direction and angle depend entirely on the operator's judgment, making it difficult to guarantee the accuracy of the reaming. Therefore, a hole reaming and straightening component for bolt disassembly non-destructive repair tools is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a hole-reaming and straightening component for a bolt disassembly non-destructive repair tool, which aims to improve the problem in the prior art that "the hole-reaming direction and angle rely entirely on manual correction by the operator when manually reaming, which cannot guarantee the accuracy of hole reaming".

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hole enlarging and straightening component for a bolt disassembly non-destructive repair tool, comprising a positioning sleeve, a fixing component provided on the lower surface of the positioning sleeve, a positioning component provided on the outer wall of the positioning sleeve, and a locking component provided on the outer wall of the positioning sleeve;

[0006] The positioning assembly includes a guide plate rotatably connected to the outer wall of the positioning sleeve. A sliding sleeve is inserted into the inner wall of the guide plate, and a bearing is installed on the inner wall of the sliding sleeve. A hole-expanding assembly is provided on the inner wall of the sliding sleeve. The hole-expanding assembly includes a support rod inserted into the inner wall of the sliding sleeve. A connector is fixedly connected to the upper end of the support rod, and a hole-expanding head is fixedly connected to the lower end of the support rod.

[0007] As a further description of the above technical solution:

[0008] The fixing component includes a clamping block that is slidably connected to the inner wall of the positioning sleeve, and the lower end of the clamping block is C-shaped.

[0009] As a further description of the above technical solution:

[0010] The clamping block is elastically connected to the inner wall of the positioning sleeve by a fixing spring.

[0011] As a further description of the above technical solution:

[0012] The fixing component also includes a pressure plate, which is slidably connected to the inner wall of the positioning sleeve. The lower surface of the pressure plate is tapered, and the upper surface of the clamping block is inclined.

[0013] As a further description of the above technical solution:

[0014] The upper end of the pressure plate is rotatably connected to a fixing screw, which passes through and is threadedly connected to the upper end of the positioning sleeve.

[0015] As a further description of the above technical solution:

[0016] The inner ring of the bearing is provided with a spline, and the outer wall of the support rod is provided with a keyway that matches the spline.

[0017] As a further description of the above technical solution:

[0018] The locking assembly includes a locking nut, which is threaded onto the outer wall of the positioning sleeve, and a lever is fixedly connected to the outer wall of the locking nut.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the sliding sleeve is provided with a convex ring, and a wing nut is threadedly connected to the outer wall of the convex ring near the top end.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting a positioning component, when performing hole enlargement operations, the positioning sleeve can be fixed to the outer wall of the workpiece first with the help of the fixing component. Then, the guide plate can be rotated or the sliding sleeve can be moved to change the position of the sliding sleeve. When the sliding sleeve is aligned with the threaded hole, the electric drill connecting head can be used to drive the support rod to rotate. The rotation of the support rod can drive the hole enlargement head to enlarge the hole. At the same time, the sliding sleeve can guide the support rod to move vertically, which can improve the accuracy of freehand hole enlargement.

[0023] 2. In this utility model, by setting a pressure plate, when fixing, the pressure plate can be moved downward by rotating the fixing screw. In this way, the pressure plate can be used to squeeze the clamping blocks. Through the squeezing of the pressure plate, the two sets of clamping blocks can move synchronously to the middle position, thus ensuring that the two sets of clamping blocks are symmetrically distributed. At the same time, the pressure plate can prevent the clamping blocks from moving outward at will and contacting the fixing, and the overall device has good fixing stability. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0025] Figure 2 This is a three-dimensional cross-sectional view of the positioning sleeve in this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the hole-expanding component in this utility model;

[0027] Figure 4 This is a three-dimensional cross-sectional diagram of the sliding sleeve in this utility model.

[0028] Legend:

[0029] 1. Positioning sleeve; 2. Fixing assembly; 21. Clamping block; 22. Fixing spring; 23. Pressure plate; 24. Fixing screw; 3. Positioning assembly; 31. Guide plate; 32. Sliding sleeve; 33. Protruding ring; 34. Spline; 35. Keyway; 36. Bearing; 4. Hole reaming assembly; 41. Support rod; 42. Connector; 43. Hole reaming head; 5. Locking assembly; 51. Locking nut; 52. Pulling block; 53. Wing nut. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a hole-reaming and straightening component for a bolt disassembly non-destructive repair tool, comprising a positioning sleeve 1 for supporting the overall device, a fixing component 2 for fixing the positioning sleeve 1 on the lower surface of the positioning sleeve 1, a positioning component 3 for positioning the processing position on the outer wall of the positioning sleeve 1, and a locking component 5 for locking the positioning component 3 on the outer wall of the positioning sleeve 1; the positioning component 3 includes a guide plate 31 for guiding the movement of a sliding sleeve 32, the guide plate 31 being rotatably connected to the outer wall of the positioning sleeve 1, and an insert for determining the processing position on the inner wall of the guide plate 31. The sliding sleeve 32 is located at the working position and can slide on the inner wall of the guide plate 31. The inner wall of the sliding sleeve 32 is equipped with a bearing 36 for supporting the rotation of the hole-expanding assembly 4. The hole-expanding assembly 4 is provided on the inner wall of the sliding sleeve 32. The hole-expanding assembly 4 includes a support rod 41 for supporting the entire hole-expanding assembly 4. The support rod 41 is inserted into the inner wall of the sliding sleeve 32 and can move up and down or rotate on the inner wall of the sliding sleeve 32. The upper end of the support rod 41 is fixedly connected to a connector 42 for connecting an electric drill, and the lower end of the support rod 41 is fixedly connected to a hole-expanding head 43 for realizing the hole-expanding function.

[0032] Reference Figure 2 - Figure 4 The fixing component 2 includes a clamping block 21 for fixing the positioning sleeve 1. The clamping block 21 is slidably connected to the inner wall of the positioning sleeve 1 and can slide horizontally back and forth on the inner wall of the positioning sleeve 1. The lower end of the clamping block 21 is C-shaped and can hook onto the protruding part of the workpiece or the surface of an adjacent workpiece, thus fixing the positioning sleeve 1. In actual use, different sizes of clamping blocks 21 can be used according to different usage environments. The clamping block 21 is elastically connected to the inner wall of the positioning sleeve 1 by a fixing spring 22. The fixing spring 22 will always support the clamping block 21 towards the middle position. It also includes a pressure plate 23 for squeezing the clamping block 21. The pressure plate 23 is slidably connected to the inner wall of the positioning sleeve 1. The pressure plate 23 can slide up and down on the inner wall of the positioning sleeve 1. The lower surface of the pressure plate 23 is set as conical, and the upper surface of the clamping block 21 is set as inclined. The upper end of the pressure plate 23 is rotatably connected to a fixing screw 24 for driving the pressure plate 23 to move. The fixing screw 24 passes through and is threadedly connected to the upper end of the positioning sleeve 1. By rotating the fixing screw 24, the fixing screw 24 can be driven to move up and down. The fixing screw 24 will drive the pressure plate 23 to move up and down synchronously.

[0033] Reference Figure 2 - Figure 4The bearing 36 has a spline 34 on its inner ring, and the support rod 41 has a keyway 35 on its outer wall that matches the spline 34. The connection stability between the bearing 36 and the support rod 41 can be further increased by the cooperation between the spline 34 and the keyway 35. The locking assembly 5 includes a locking nut 51 for pressing the guide plate 31. The locking nut 51 is threaded to the outer wall of the positioning sleeve 1. By rotating the locking nut 51, the locking nut 51 can be driven to press the guide plate 31, thus fixing the guide plate 31. The outer wall of the locking nut 51 is fixedly connected to a lever 52 for easy rotation by the operator. The outer wall of the sliding sleeve 32 has a convex ring 33. The outer wall of the convex ring 33 is threaded to a wing nut 53 near the top. By rotating the wing nut 53, the sliding sleeve 32 can be driven to move upward, thus driving the convex ring 33 to press the lower surface of the guide plate 31. At the same time, the wing nut 53 will press the upper surface of the guide plate 31, thus locking the sliding sleeve 32.

[0034] Working principle: In use, first hook the C-shaped part at the lower end of the clamping block 21 onto the protruding part of the workpiece or the surface of the adjacent workpiece. At this time, the clamping block 21 can be pushed by the fixing spring 22 to clamp the workpiece. Then, rotate the fixing screw 24. Since the fixing screw 24 is threaded to the upper end of the positioning sleeve 1 and its upper end is rotatably connected to the pressure plate 23, as the fixing screw 24 rotates, the pressure plate 23 will move downward. The lower surface of the pressure plate 23 is conical and the upper surface of the clamping block 21 is inclined. The pressure plate 23 presses the clamping block 21 downward, so that the two sets of clamping blocks 21 move synchronously to the middle position. In this way, the positioning sleeve 1 can be firmly fixed on the outer wall of the workpiece, ensuring that the positioning sleeve 1 will not be displaced during the hole enlargement process.

[0035] After the positioning sleeve 1 is fixed, the positioning component 3 is adjusted according to the position of the threaded hole. The guide plate 31 is rotated, and the guide plate 31 rotates around the outer wall of the positioning sleeve 1, which drives the sliding sleeve 32 inserted into its inner wall to move and initially align with the position of the threaded hole. Then, more precise fine-tuning can be made by moving the sliding sleeve 32 in the position of the inner wall of the guide plate 31. The inner wall of the sliding sleeve 32 is equipped with a bearing 36. The spline 34 of the inner ring of the bearing 36 cooperates with the keyway 35 of the outer wall of the support rod 41, which not only ensures that the support rod 41 can rotate stably in the sliding sleeve 32, but also allows it to move up and down. When the sliding sleeve 32 is completely aligned with the threaded hole, the positioning work is completed.

[0036] To prevent displacement of the positioning component 3 during the hole enlargement process, a locking component 5 is used for locking. The locking nut 51 is threaded onto the outer wall of the positioning sleeve 1, and its outer wall has a lever 52 for easy operation. When the locking nut 51 rotates, it presses against the guide plate 31, fixing it in its current position. Simultaneously, the wing nut 53 on the outer wall of the sliding sleeve 32 rotates, causing the sliding sleeve 32 to move upwards. The wing nut 53 presses against the lower surface of the guide plate 31, and the wing nut 53 itself presses against the upper surface of the guide plate 31. The sliding sleeve 32 is locked in place to ensure the stability of the reaming process. After completing the above steps, the electric drill is connected to the connector 42 and started. The electric drill drives the support rod 41 to rotate. Since the lower end of the support rod 41 is fixedly connected to the reaming head 43, the reaming head 43 rotates accordingly to ream the threaded hole. During the reaming process, the sliding sleeve 32 provides stable support for the support rod 41 through the bearing 36 and guides the support rod 41 to move vertically, improving the accuracy of the reaming and ensuring that the reaming position is correct, laying the foundation for subsequent thread groove repair work.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A reaming and straightening assembly of a bolt dismounting non-destructive repair tool, comprising a positioning sleeve (1), characterized in that: The lower surface of the positioning sleeve (1) is provided with a fixing component (2), the outer wall of the positioning sleeve (1) is provided with a positioning component (3), and the outer wall of the positioning sleeve (1) is provided with a locking component (5). The positioning component (3) includes a guide plate (31), which is rotatably connected to the outer wall of the positioning sleeve (1). A sliding sleeve (32) is inserted into the inner wall of the guide plate (31). A bearing (36) is installed on the inner wall of the sliding sleeve (32). A hole-expanding component (4) is provided on the inner wall of the sliding sleeve (32). The hole-expanding component (4) includes a support rod (41), which is inserted into the inner wall of the sliding sleeve (32). A connector (42) is fixedly connected to the upper end of the support rod (41), and a hole-expanding head (43) is fixedly connected to the lower end of the support rod (41).

2. A reaming and straightening assembly for a bolt disassembly tool according to claim 1, characterized in that: The fixing component (2) includes a clamping block (21), which is slidably connected to the inner wall of the positioning sleeve (1), and the lower end of the clamping block (21) is configured as a C-shape.

3. The hole-reaming and straightening component of a bolt disassembly non-destructive repair tool according to claim 2, characterized in that: The clamping block (21) is elastically connected to the inner wall of the positioning sleeve (1) by a fixing spring (22).

4. The hole-reaming and straightening component of a bolt disassembly non-destructive repair tool according to claim 3, characterized in that: The fixing component (2) also includes a pressure plate (23), which is slidably connected to the inner wall of the positioning sleeve (1). The lower surface of the pressure plate (23) is set in a conical shape, and the upper surface of the clamping block (21) is set in an inclined shape.

5. The hole-reaming and straightening component of a bolt disassembly non-destructive repair tool according to claim 4, characterized in that: The upper end of the pressure plate (23) is rotatably connected to a fixing screw (24), which is threaded through and connected to the upper end of the positioning sleeve (1).

6. The hole-reaming and straightening component of a bolt disassembly non-destructive repair tool according to claim 1, characterized in that: The inner ring of the bearing (36) is provided with a spline (34), and the outer wall of the support rod (41) is provided with a keyway (35) that matches the spline (34).

7. The hole-reaming and straightening component of a bolt disassembly non-destructive repair tool according to claim 1, characterized in that: The locking assembly (5) includes a locking nut (51), which is threaded to the outer wall of the positioning sleeve (1), and a lever (52) is fixedly connected to the outer wall of the locking nut (51).

8. The hole-reaming and straightening component of a bolt disassembly non-destructive repair tool according to claim 7, characterized in that: The outer wall of the sliding sleeve (32) is provided with a convex ring (33), and a wing nut (53) is threadedly connected to the outer wall of the convex ring (33) near the top.

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