High-precision fine positioning screw sleeve

Abstract

The utility model relates to a screw technology field, specifically is a kind of high-precision fine adjustment positioning screw, including screw body and positioning screw rod, the positioning screw rod is threadedly connected in the inner chamber of screw body, adjusting mechanism is provided in the positioning screw rod inner chamber;The utility model is by first installing screw body in screw hole, then the positioning screw rod is threadedly connected in the inner chamber of screw body, when the position of screw body needs to be adjusted, rotate adjusting screw rod, adjusting screw rod drives positioning rod to push steel ball, so that steel ball is jammed the inner wall of screw body, so that positioning screw rod and adjusting screw rod form an entity, when rotating positioning screw rod again, positioning screw rod can drive screw body to move together, so that the position of screw body in screw hole changes, reverse rotation adjusting screw rod, then steel ball cancels the restriction to screw body, screw body and positioning screw rod can separate, further, the problem that the position adjustment of screw in screw hole is not enough convenient has been solved.

Description

Technical Field

[0001] This utility model relates to the field of screw sleeve technology, specifically a high-precision fine-tuning positioning screw sleeve. Background Technology

[0002] A threaded insert (also known as a wire threaded insert or threaded sleeve) is a spring-shaped concentric body with internal and external threads. It forms a standard internal thread by being screwed into a threaded hole in the base material, thereby enhancing the connection strength and protecting the base material thread. Threaded inserts are a new type of internal thread fastener, mainly used to reinforce and protect the internal threads of low-strength materials. They are made of high-strength, high-precision cold-rolled diamond-shaped stainless steel wire and are widely used in electronics, aerospace and other fields.

[0003] Currently, in existing technologies, the threaded sleeve is first installed in the threaded hole of the lower workpiece, and then the screw is installed in the threaded sleeve, thereby locking the upper workpiece. However, since the thickness of the upper workpiece varies and the threaded hole depth of different lower workpieces is different, and the position adjustment of the threaded sleeve in the threaded hole is not convenient enough, the use of the threaded sleeve is not convenient enough. Utility Model Content

[0004] To address the shortcomings of existing technologies, such as the inconvenience of adjusting the position of the screw sleeve within the screw hole, this invention proposes a high-precision fine-tuning positioning screw sleeve.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-precision fine-tuning positioning screw sleeve, including a screw sleeve body and a positioning screw, wherein the positioning screw is threadedly connected to the inner cavity of the screw sleeve body, and the inner cavity of the positioning screw is provided with an adjustment mechanism; The adjusting mechanism includes an adjusting screw, which is threaded to the top of a positioning screw. A positioning groove is formed in the inner cavity of the adjusting screw. One end of the adjusting screw passes through the adjusting screw into the positioning groove and is rotatably connected to a positioning rod. The positioning rod is slidably connected inside the positioning groove. A steel ball is provided at the bottom of the positioning groove near the outer wall of the positioning screw. The end of the positioning rod contacts the steel ball, and the steel ball is tightly locked to the inner wall of the screw sleeve body. A rubber pad is provided on the outer side of the positioning screw near the outer wall of the steel ball.

[0006] Preferably, the top of the positioning screw has a threaded groove, which communicates with the positioning groove, and the adjusting screw is threaded inside the threaded groove.

[0007] Preferably, a fixing sleeve is fixedly connected to the top of the positioning rod, and the end of the adjusting screw is rotatably connected to the inner cavity of the fixing sleeve.

[0008] Preferably, a guide groove is provided on one side of the positioning groove, and a guide rod is fixedly connected to one side of the outer wall of the positioning rod, and the guide rod is slidably connected inside the guide groove.

[0009] Preferably, the bottom of the positioning rod has an arc surface, and the steel ball contacts the surface of the arc surface.

[0010] Preferably, a spherical groove is provided on one side of the bottom of the positioning groove, and the steel ball is slidably connected inside the spherical groove.

[0011] Preferably, the outer wall of the positioning screw has a side groove near the spherical groove, and the rubber pad is fixedly connected inside the side groove, with the rubber pad in contact with the surface of the steel ball.

[0012] The advantages of this utility model are: This invention involves first installing the threaded sleeve body inside the threaded hole, then threading a positioning screw into the inner cavity of the threaded sleeve body. When the position of the threaded sleeve body needs to be adjusted, rotating the adjusting screw drives the positioning rod to push the steel ball, causing the steel ball to lock into the inner wall of the threaded sleeve body. This integrates the positioning screw and the adjusting screw. Rotating the positioning screw again moves the threaded sleeve body, changing its position within the threaded hole. Reversing the rotation of the adjusting screw removes the steel ball's restriction on the threaded sleeve body, allowing the threaded sleeve body to separate from the positioning screw. This achieves high-precision fine-tuning of the threaded sleeve body, solving the problem of inconvenient position adjustment of the threaded sleeve within the threaded hole. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 connection between the positioning screw and the screw sleeve body of this utility model; Figure 2 This is a schematic diagram of the structure of the positioning screw and the screw sleeve body of this utility model. Figure 3 This is a side sectional view of the structure of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram of section A in the middle; Figure 5 This utility model Figure 3 Enlarged structural diagram of section B in the middle.

[0015] In the diagram: 1. Screw sleeve body; 2. Positioning screw; 3. Adjustment mechanism; 31. Adjustment screw; 32. Threaded groove; 33. Positioning groove; 34. Positioning rod; 35. Fixing sleeve; 36. Guide groove; 37. Guide rod; 38. Arc surface; 39. Spherical groove; 310. Steel ball; 311. Side groove; 312. Rubber pad. Detailed Implementation

[0016] 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 scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses a high-precision fine-tuning positioning screw sleeve. (Refer to...) Figures 1-5 A high-precision fine-tuning positioning screw sleeve includes a screw sleeve body 1 and a positioning screw 2. The positioning screw 2 is threadedly connected to the inner cavity of the screw sleeve body 1. An adjustment mechanism 3 is provided in the inner cavity of the positioning screw 2. By installing the screw sleeve body 1 in a screw hole and then installing the positioning screw 2 in the inner cavity of the screw sleeve body 1, the position of the screw sleeve body 1 in the screw hole is adjusted by the adjustment mechanism 3. First, the positioning screw 2 and the screw sleeve body 1 are locked together by the adjustment mechanism 3, so that the screw sleeve body 1 and the positioning screw 2 form an integral unit. By rotating the positioning screw 2, the positioning screw 2 drives the screw sleeve body 1 to adjust up and down in the screw hole. After adjusting to the target position, the positioning of the screw sleeve body 1 is completed. Then, the restriction on the screw sleeve body 1 is removed by the adjustment mechanism 3, so that the positioning screw 2 and the screw sleeve body 1 can be separated, thereby achieving the purpose of high-precision adjustment of the position of the screw sleeve body 1 in the screw hole. The adjusting mechanism 3 includes an adjusting screw 31, which is threaded to the top of the positioning screw 2. A positioning groove 33 is formed in the inner cavity of the adjusting screw 31. One end of the adjusting screw 31 passes through the adjusting screw 31 into the positioning groove 33 and is rotatably connected to a positioning rod 34. The positioning rod 34 is slidably connected inside the positioning groove 33. A steel ball 310 is provided at the bottom of the positioning groove 33 near the outer wall of the positioning screw 2. The end of the positioning rod 34 contacts the steel ball 310, and the steel ball 310 is tightly locked to the inner wall of the screw sleeve body 1. A rubber pad 312 is provided on the outer side of the positioning screw 2 near the outer wall of the steel ball 310. By rotating the adjusting screw 31, the adjusting screw 31 is adjusted... The adjusting screw 31 moves downward and pushes the positioning rod 34 to slide downward in the positioning groove 33. The positioning rod 34 pushes the steel ball 310 to slide outward of the positioning screw 2. The steel ball 310 is tightly attached to the inner wall of the sleeve body 1, so that the positioning screw 2 and the sleeve body 1 can form a whole. The adjusting screw 31 is rotated in the opposite direction, and the adjusting screw 31 drives the positioning rod 34 to move upward. The bottom of the positioning rod 34 separates from the steel ball 310. The rebound force of the rubber pad 312 pushes the steel ball 310 to contract into the inner cavity of the positioning screw 2, so that the steel ball 310 separates from the inner wall of the sleeve body 1, and thus the positioning screw 2 and the sleeve body 1 can be separated.

[0018] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The positioning screw 2 has a threaded groove 32 at its top, which communicates with the positioning groove 33. The adjusting screw 31 is threadedly connected inside the threaded groove 32. The top of the positioning rod 34 is fixedly connected to a fixing sleeve 35. The end of the adjusting screw 31 is rotatably connected to the inner cavity of the fixing sleeve 35. A guide groove 36 is provided on one side of the positioning groove 33. A guide rod 37 is fixedly connected to one side of the outer wall of the positioning rod 34. The guide rod 37 is slidably connected inside the guide groove 36. By rotating the adjusting screw 31, the adjusting screw 31 slides up and down in the threaded groove 32 and uses the fixing sleeve 35 to drive the positioning rod 34 to slide up and down in the positioning groove 33. The positioning rod 34 slides down stably using the guide groove 36 and the guide rod 37, thereby achieving the purpose of the adjusting screw 31 stably driving the positioning rod 34 to slide up and down.

[0019] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5The bottom of the positioning rod 34 has an arc surface 38, and the steel ball 310 contacts the surface of the arc surface 38. A spherical groove 39 is formed on one side of the bottom of the positioning groove 33, and the steel ball 310 is slidably connected inside the spherical groove 39. A side groove 311 is formed on the outer wall of the positioning screw 2 near the spherical groove 39, and a rubber pad 312 is fixedly connected inside the side groove 311. The rubber pad 312 contacts the surface of the steel ball 310 and slides downwards through the positioning rod 34. The bottom of the positioning rod 34 has an oblique arc... The surface 38 pushes the steel ball 310, which slides outward in the spherical groove 39 and pushes the rubber pad 312 in the side groove 311 to deform, so that the steel ball 310 can fit tightly against the inner wall of the threaded sleeve body 1. When the positioning rod 34 slides upward, the arc surface 38 at the bottom of the positioning rod 34 separates from the steel ball 310. The rebound force of the rubber pad 312 pushes the steel ball 310 to contract inward in the spherical groove 39, so that the steel ball 310 removes the restriction on the threaded sleeve body 1.

[0020] Working principle: In use, first install the threaded sleeve body 1 into the threaded hole, then install the positioning screw 2 into the inner cavity of the threaded sleeve body 1. Use the adjusting mechanism 3 to adjust the position of the threaded sleeve body 1 in the threaded hole. First rotate the adjusting screw 31, and the adjusting screw 31 slides downward in the threaded groove 32. The adjusting screw 31 uses the fixing sleeve 35 to push the positioning rod 34 to slide downward in the positioning groove 33. The positioning rod 34 slides downward stably using the guide groove 36 and the guide rod 37, so that the arc surface 38 at the bottom of the positioning rod 34 pushes the steel ball 310 to slide outward of the spherical groove 39. The rubber pad 312 inside the side groove 311 is deformed and tightly adheres to the inner wall of the threaded sleeve body 1, thereby forming a whole with the threaded sleeve body 1 and the positioning screw 2. Rotating the positioning screw 2 can drive the threaded sleeve body 1 to adjust up and down in the threaded hole. After the position of the threaded sleeve body 1 is adjusted, the adjusting screw 31 is rotated in the opposite direction to separate the bottom arc surface 38 of the positioning rod 34 from the steel ball 310. The rebound force of the rubber pad 312 pushes the steel ball 310 to retract into the spherical groove 39, thereby removing the restriction of the steel ball 310 on the threaded sleeve body 1, and the threaded sleeve body 1 and the positioning screw 2 can be separated.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-precision fine-tuning positioning sleeve, comprising a sleeve body (1) and a positioning screw (2), characterized in that: The positioning screw (2) is threaded into the inner cavity of the screw sleeve body (1), and the inner cavity of the positioning screw (2) is provided with an adjustment mechanism (3). The adjustment mechanism (3) includes an adjustment screw (31), which is threaded to the top of the positioning screw (2). The inner cavity of the adjustment screw (31) is provided with a positioning groove (33). One end of the adjustment screw (31) passes through the adjustment screw (31) to the inside of the positioning groove (33) and is rotatably connected to a positioning rod (34). The positioning rod (34) is slidably connected to the inside of the positioning groove (33). A steel ball (310) is provided at the bottom of the positioning groove (33) near the outer wall of the positioning screw (2). The end of the positioning rod (34) contacts the steel ball (310). The steel ball (310) is tightly locked with the inner wall of the screw sleeve body (1). A rubber pad (312) is provided on the outer side of the positioning screw (2) near the outer wall of the steel ball (310).

2. The high-precision fine-tuning positioning screw sleeve according to claim 1, characterized in that: The positioning screw (2) has a threaded groove (32) at the top, which is connected to the positioning groove (33). The adjusting screw (31) is threaded inside the threaded groove (32).

3. The high-precision fine-tuning positioning screw sleeve according to claim 1, characterized in that: The top of the positioning rod (34) is fixedly connected to a fixing sleeve (35), and the end of the adjusting screw (31) is rotatably connected to the inner cavity of the fixing sleeve (35).

4. The high-precision fine-tuning positioning screw sleeve according to claim 1, characterized in that: A guide groove (36) is provided on one side of the positioning groove (33), and a guide rod (37) is fixedly connected to one side of the outer wall of the positioning rod (34). The guide rod (37) is slidably connected inside the guide groove (36).

5. The high-precision fine-tuning positioning screw sleeve according to claim 1, characterized in that: The bottom of the positioning rod (34) is provided with an arc surface (38), and the steel ball (310) is in contact with the surface of the arc surface (38).

6. The high-precision fine-tuning positioning screw sleeve according to claim 1, characterized in that: A spherical groove (39) is provided on one side of the bottom of the positioning groove (33), and the steel ball (310) is slidably connected inside the spherical groove (39).

7. A high-precision fine-tuning positioning screw sleeve according to claim 1, characterized in that: The outer wall of the positioning screw (2) is provided with a side groove (311) near the spherical groove (39). The rubber pad (312) is fixedly connected inside the side groove (311) and the rubber pad (312) is in contact with the surface of the steel ball (310).

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