Positioning device

Abstract

The utility model discloses a locating device and relates to the technical field of hardware machining, the locating device is used for being placed in a through hole in a first target piece, a second target piece is arranged on one side of the first target piece, the locating device comprises a locating cylinder, a supporting assembly and a movable rod, and a movable channel is formed in the locating cylinder; the supporting assembly is arranged on the periphery of the positioning cylinder and abuts against the hole wall of the through hole; the movable rod is arranged in the movable channel in a sliding mode, the movable rod is provided with a punching end and a pulling end which extend out of the movable channel, the center line of the punching end is the central axis of the through hole, and the movable rod slides up and down in the movable channel, so that the punching end impacts the second target piece, and the hole center concentric with the through hole is determined on the second target piece. According to the technical scheme provided by the utility model, the problem that hole centers are not easy to align when two concentric hole parts are processed is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware processing, in particular to a positioning device. Background Art

[0002] In modern manufacturing, parts with concentric holes are widely used in various mechanical equipment and products. When machining such parts, due to the lack of special positioning devices, factories often rely on manual operation to ensure the concentricity of the holes of the two parts during the processing.

[0003] Due to the limitations of manual operation, it is difficult to ensure that the holes of two parts are completely concentric. The misalignment of the holes will lead to increased processing errors, making some parts unable to meet assembly requirements, resulting in part scrapping and increased production costs. Utility Model Content

[0004] The main purpose of the utility model is to provide a positioning device, which aims to solve the problem that the centers of two concentric holes are difficult to align when machining parts.

[0005] To achieve the above-mentioned purpose, the positioning device proposed in the present invention is used to be placed in a through hole on a first target part, and a second target part is provided on one side of the first target part. The positioning device includes:

[0006] A positioning cylinder with a movable channel formed inside;

[0007] a supporting assembly, disposed on the outer periphery of the positioning cylinder and abutting against the wall of the through hole; and

[0008] A movable rod is slidably arranged in the movable channel, and the movable rod has a punching end and a pulling end extending out of the movable channel, and the center line of the punching end is the central axis of the through hole, wherein the movable rod slides up and down in the movable channel so that the punching end hits the second target part to determine the hole center concentric with the through hole on the second target part.

[0009] In one embodiment, the cross-sectional area of ​​the punching end gradually decreases from an end close to the support component to an end away from the support component.

[0010] In one embodiment, the support assembly comprises:

[0011] a sliding sleeve, which is arranged on the outer circumference of the positioning cylinder; and

[0012] A support frame is arranged outside the positioning cylinder, one end of the support frame is connected to the sliding sleeve, and the other end of the support frame is connected to the positioning cylinder, wherein the extension or contraction of the support frame is adjusted by sliding the sliding sleeve on the positioning cylinder.

[0013] In one embodiment, the support frame includes a first sub-rod and a second sub-rod that are rotatably connected, the end of the first sub-rod away from the second sub-rod is fixedly connected to the sliding sleeve, and the end of the second sub-rod away from the first sub-rod is fixedly connected to the positioning cylinder, and the sliding sleeve slides back and forth on the positioning cylinder to enable the first sub-rod and the second sub-rod to move closer to or away from the positioning cylinder.

[0014] In one embodiment, the first sub-rod has a positioning end away from the sliding sleeve, and a positioning ball is provided at the positioning end. The positioning ball is used to abut against the hole wall of the through hole, and the second sub-rod is rotatably connected to a position on the first sub-rod close to the positioning ball.

[0015] In one embodiment, the support assembly further includes a locking sleeve, which is sleeved on the outer circumference of the positioning cylinder and located on a side of the sliding sleeve facing the punching end to fix the sliding sleeve.

[0016] In one embodiment, the positioning device also includes an elastic member, which is arranged between the positioning cylinder and the movable rod. In the length direction of the movable rod, one end of the elastic member abuts against the positioning cylinder, and the other end of the elastic member abuts against the movable rod, so that the elastic member is compressed or released when the movable rod rises or falls.

[0017] In one embodiment, the elastic member is a spring, which is sleeved on the outer circumference of the movable rod, the inner wall of the positioning cylinder is provided with a first boss, the outer wall of the movable rod is provided with a second boss, and the first boss and the second boss are respectively in contact with the two ends of the spring.

[0018] In one embodiment, the positioning device further includes a handle, which is fixed to the pulling end to pull the movable rod up or down.

[0019] In one embodiment, a mounting protrusion is provided on the positioning cylinder, and the mounting protrusion is provided on the side of the positioning cylinder close to the pulling end. The positioning device also includes a nut, which is detachably provided on the side of the mounting protrusion away from the support assembly and is threadedly connected to the movable rod.

[0020] In the technical solution of the present invention, when processing two target parts of concentric axes, the first target part is first processed with a through hole, and then the positioning device is placed in the through hole on the first target part, so that the support assembly contacts the hole wall of the through hole, ensuring that the center line of the punching end of the movable rod is consistent with the central axis of the through hole; by sliding the movable rod up and down, the punching end of the movable rod hits the second target part multiple times, so as to leave the center point of the hole on the second target part. Subsequently, the positioning device is removed and the punching structure is used to punch a hole on the second target part according to the position of the hole center. Since the center line of the punching end is the central axis of the through hole on the first target part, it can be ensured that the center of the hole on the second target part is on the same axis as the center of the through hole on the first target part, so that the hole centers of the two target parts after assembly are concentric, thereby improving the processing accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 This is a structural diagram of a positioning device in a punching state in an embodiment provided by the present utility model;

[0023] Figure 2 A schematic structural diagram of an embodiment of a positioning device provided by the present utility model;

[0024] Figure 3 A structural front view of another embodiment of the positioning device provided by the utility model;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0026] Figure 5 This is a top view of the structure of another embodiment of the positioning device provided by the utility model.

[0027] Description of Figure Numbers:

[0028] 100. Positioning device; 01. First target part; 011. Through hole; 02. Second target part; 1. Positioning cylinder; 11. First boss; 12. Mounting cam; 2. Support assembly; 21. Sliding sleeve; 22. Support frame; 221. First sub-rod; 222. Second sub-rod; 223. Positioning ball; 23. Locking sleeve; 3. Movable rod; 30. Second boss; 31. Punching end; 32. Pulling end; 4. Elastic member; 5. Nut.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] Currently, the machining process often relies on manual labor to ensure the concentricity of the holes in two parts. Due to the limitations of manual labor, it is difficult to ensure that the holes in two parts are completely concentric. The misalignment of the holes will lead to increased machining errors, making some parts unable to meet assembly requirements, resulting in part scrapping and increased production costs.

[0034] The utility model provides a positioning device, which is used for being placed in a through hole on a first target part, and a second target part is provided on one side of the first target part.

[0035] See also Figure 1 In one embodiment of the present invention, the positioning device 100 includes:

[0036] Positioning cylinder 1, with a movable channel formed inside;

[0037] The support assembly 2 is provided on the outer periphery of the positioning cylinder 1 and abuts against the hole wall of the through hole 011; and

[0038] The movable rod 3 is slidably arranged in the movable channel. The movable rod 3 has a punching end 31 and a pulling end 32 extending out of the movable channel, and the center line of the punching end 31 is the central axis of the through hole 011. The movable rod 3 slides up and down in the movable channel, so that the punching end 31 hits the second target part 02 to determine the hole center concentric with the through hole 011 on the second target part 02.

[0039] In the technical solution of the present invention, when processing two target parts with concentric axes, the first target part 01 first completes the processing of the through hole 011, and then the positioning device 100 is placed in the through hole 011 on the first target part 01, so that the support component 2 contacts the hole wall of the through hole 011, ensuring that the center line of the punching end 31 of the movable rod 3 is consistent with the central axis of the through hole 011; by sliding the movable rod 3 up and down, the punching end 31 of the movable rod 3 hits the second target part 02 multiple times, so as to leave the center point of the hole on the second target part 02. Subsequently, after removing the positioning device 100, the punching structure is used to punch a hole on the second target part 02 according to the position of the hole center. Since the center line of the punching end 31 is the central axis of the through hole 011 on the first target part 01, it can be ensured that the center of the hole on the second target part 02 is on the same axis as the center of the through hole 011 on the first target part 01, so that the hole centers of the two target parts after assembly are concentric, thereby improving the processing accuracy and efficiency.

[0040] Specifically, there is no specific limitation on the shape of the holes on the first target part 01 and the second target part 02, and they can be, for example, circular, elliptical or square. In this embodiment, taking a circular hole as an example, by the abutment of the support assembly 2 with the through hole 011 on the first target part 01, and the collinear arrangement of the center line of the punching end 31 on the movable rod 3 and the central axis on the first target part 01, the positioning operation of determining the center of the hole concentric with the first target part 01 on the second target part 02 can be easily achieved. In addition, there is no specific limitation on the shape of the support assembly 2, and for example, there can be a plurality of support rods, and the plurality of support rods are arranged at intervals along the outer radial direction of the positioning cylinder 1, so that by connecting the plurality of support rods away from one end of the positioning cylinder 1, a circular hole of a similar size to the through hole 011 on the first target part 01 can be formed. Through the supporting effect of the support assembly 2, the alignment degree between the positioning device 100 and the through hole 011 on the first target part 01 can be increased, thereby ensuring the accuracy of positioning. There is no specific limitation on the specific sliding connection method between the movable rod 3 and the positioning cylinder 1. For example, a sliding groove can be provided inside the positioning cylinder 1, and a sliding rail can be provided on the outer periphery of the movable rod 3. Through the cooperation of the sliding rail and the sliding groove, the sliding process of the movable rod 3 and the positioning cylinder 1 can be easily realized.

[0041] In the embodiments of the present invention, please refer to Figure 1 and Figure 3 The cross-sectional area of ​​the punching end 31 gradually decreases from the end close to the support component 2 to the end away from the support component 2. That is to say, the punching end 31 can form a sharp structure, such as a cone-shaped structure or other structure with a pointed vertex; in this way, when hitting the second target part 02, the force can be concentrated on one point, and the center of the hole on the second target part 02 can be determined more accurately, because the sharp point can easily form a clear mark during punching, thereby reducing positioning errors.

[0042] In the embodiments of the present invention, please refer to Figure 2 and Figure 3 , support assembly 2 includes:

[0043] A sliding sleeve 21 is provided on the outer periphery of the positioning tube 1; and

[0044] The support frame 22 is arranged outside the positioning cylinder 1. One end of the support frame 22 is connected to the sliding sleeve 21, and the other end of the support frame 22 is connected to the positioning cylinder 1. The extension or contraction of the support frame 22 is adjusted by sliding the sliding sleeve 21 on the positioning cylinder 1.

[0045] Specifically, a sliding sleeve 21 is slidably mounted on the outer wall of the positioning cylinder 1, with one end of the sliding sleeve 21 fixedly connected to the support frame 22. The upward and downward sliding motion of the sliding sleeve 21 causes the support frame 22 to expand or contract, thereby adjusting the support radius of the support frame 22 according to the different sizes of the through-holes 011 on the first target component 01. The design of the sliding sleeve 21 simplifies the adjustment process, allowing the operator to easily adjust the support assembly 2 without the use of complex tools, reducing operational difficulty. Furthermore, the adjustability of the support assembly 2 allows the positioning device 100 to be retracted when not in operation, saving storage space.

[0046] In the embodiments of the present invention, please refer to Figure 3 The support frame 22 includes a first sub-rod 221 and a second sub-rod 222 that are rotatably connected. The end of the first sub-rod 221 away from the second sub-rod 222 is fixedly connected to the sliding sleeve 21, and the end of the second sub-rod 222 away from the first sub-rod 221 is fixedly connected to the positioning cylinder 1. For example, the first sub-rod 221 and the sliding sleeve 21, as well as the second sub-rod 222 and the positioning cylinder 1, are fixedly connected by bolts, and the first sub-rod 221 and the second sub-rod 222 are rotatably connected by rivets. The sliding sleeve 21 slides back and forth on the positioning cylinder 1, causing the first sub-rod 221 and the second sub-rod 222 to move toward or away from the positioning cylinder 1, thereby adjusting the outer diameter of the support frame 22.

[0047] In the embodiments of the present invention, please refer to Figure 3and Figure 5 The first sub-rod 221 has a positioning end away from the sliding sleeve 21. A positioning ball 223 is provided at the positioning end. The positioning ball 223 is used to abut the hole wall of the through hole 011. The second sub-rod 222 is rotatably connected to the first sub-rod 221 near the positioning ball 223. The positioning ball 223 can be a spherical structure such as a steel ball. It has good adaptability to hole walls of different shapes and sizes and can evenly distribute contact pressure, thereby avoiding damage to the hole wall and protecting the structural integrity of the first target component 01.

[0048] In the embodiments of the present invention, please refer to Figure 3 The support assembly 2 further includes a locking sleeve 23, which is sleeved on the outer periphery of the positioning cylinder 1 and is located on the side of the sliding sleeve 21 facing the punching end 31 to secure the sliding sleeve 21. The locking sleeve 23 can be a threaded sleeve, such as a nut, that is partially mounted on the outer wall of the sliding sleeve 21 and partially threadedly connected to the outer wall of the positioning cylinder 1. During the sliding process of the sliding sleeve 21, when it moves to the target position, the support assembly 2 is in contact with the wall of the through hole 011. At this time, the sliding sleeve 21 can be locked and fixed by the locking sleeve 23 to prevent the punching end 31 of the movable rod 3 from shifting during the punching process, which would lead to inaccurate positioning.

[0049] In the embodiments of the present invention, please refer to Figure 3 and Figure 4 The positioning device 100 also includes an elastic member 4, which is provided between the positioning cylinder 1 and the movable rod 3. In the longitudinal direction of the movable rod 3, one end of the elastic member 4 abuts against the positioning cylinder 1, and the other end of the elastic member 4 abuts against the movable rod 3, so that the elastic member 4 is compressed or released when the movable rod 3 rises or falls. The elastic member 4 acts as a buffer when the movable rod 3 rises or falls, and can absorb and release energy, thereby reducing the impact and vibration of the movable rod 3 during the movement. When punching, the elastic member 4 is compressed when the movable rod 3 falls. When the external force is lost, the compressed elastic member 4 generates an elastic reset force, forcing the movable rod 3 to automatically return to its initial position. There is no need to manually adjust the rise of the movable rod 3, which facilitates the next round of operations and improves processing efficiency.

[0050] In the embodiments of the present invention, please refer to Figure 4The elastic member 4 is a spring, which is sleeved on the outer periphery of the movable rod 3. The inner wall of the positioning cylinder 1 is provided with a first boss 11, and the outer wall of the movable rod 3 is provided with a second boss 30, and the first boss 11 and the second boss 30 are respectively in contact with the two ends of the spring. Preferably, the first boss 11 and the second boss 30 are both protruding, for example, they can be convex rings, etc. The second boss 30 is provided on the side of the first boss 11 close to the first target part 01. In this way, the first boss 11 protruding on the inner wall of the positioning cylinder 1 limits the upper end of the spring, while the second boss 30 protruding on the outer wall of the movable rod 3 limits the lower end of the spring. When the movable rod 3 rises, the second boss 30 smoothly compresses the spring; when the movable rod 3 loses the external force, the elasticity of the spring will produce a downward impact force on the second boss 30, causing it to approach the second target part 02, thereby marking the center point position of the hole on the second target part 02, completing the pre-drilling action for the second target part 02.

[0051] In an embodiment of the present invention, the positioning device 100 further includes a handle fixed to the pulling end 32 for raising or lowering the movable rod 3. The handle may be an annular rotating ring, two opposing rotating handles, or other structures that facilitate pulling. The handle may be fixed to the pulling end 32 of the movable rod 3 by threading, welding, riveting, or bonding. The provision of the handle facilitates the operator to directly control the raising or lowering of the movable rod 3 by the handle, without having to directly contact the movable rod 3, making operation more convenient and quick.

[0052] In the embodiments of the present invention, please refer to Figure 2 and Figure 3 The positioning tube 1 is provided with a mounting collar 12, which is located on the side of the positioning tube 1 near the pulling end 32. The positioning device 100 also includes a nut 5, which is detachably located on the side of the mounting collar 12 facing away from the support assembly 2 and is threadedly connected to the movable rod 3. The mounting collar 12 is an annular protrusion protruding from the outer periphery of the positioning tube 1. Placing the nut 5 on the mounting collar 12 and threadedly connected to the movable rod 3 allows the operator to precisely control the movement of the movable rod 3 so that it remains at the target position. For example, by securing the movable rod 3 with the nut 5, the contact time between the punching end 31 and the second target part 02 can be increased, ensuring that the center of the hole is more clearly located.

[0053] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A positioning device, for placement in a through hole on a first target part, with a second target part provided on one side of the first target part, characterized in that: The positioning device comprises: A positioning cylinder with a movable channel formed inside; a supporting assembly, disposed on the outer periphery of the positioning cylinder and abutting against the wall of the through hole; and A movable rod is slidably arranged in the movable channel, and the movable rod has a punching end and a pulling end extending out of the movable channel, and the center line of the punching end is the central axis of the through hole, wherein the movable rod slides up and down in the movable channel so that the punching end hits the second target part to determine the hole center concentric with the through hole on the second target part.

2. The positioning device according to claim 1, wherein The cross-sectional area of ​​the punching end gradually decreases from an end close to the support component to an end away from the support component.

3. The positioning device according to claim 1, wherein The support assembly comprises: a sliding sleeve, which is arranged on the outer circumference of the positioning cylinder; and A support frame is arranged outside the positioning cylinder, one end of the support frame is connected to the sliding sleeve, and the other end of the support frame is connected to the positioning cylinder, wherein the extension or contraction of the support frame is adjusted by sliding the sliding sleeve on the positioning cylinder.

4. The positioning device according to claim 3, wherein: The support frame includes a first sub-rod and a second sub-rod that are rotatably connected. The end of the first sub-rod away from the second sub-rod is fixedly connected to the sliding sleeve, and the end of the second sub-rod away from the first sub-rod is fixedly connected to the positioning cylinder. The sliding sleeve slides back and forth on the positioning cylinder to enable the first sub-rod and the second sub-rod to move closer to or away from the positioning cylinder.

5. The positioning device according to claim 4, characterized in that The first sub-rod has a positioning end away from the sliding sleeve, and a positioning ball is provided at the positioning end. The positioning ball is used to abut against the hole wall of the through hole, and the second sub-rod is rotatably connected to a position on the first sub-rod close to the positioning ball.

6. The positioning device according to claim 3, wherein: The support assembly further includes a locking sleeve, which is sleeved on the outer periphery of the positioning cylinder and located on a side of the sliding sleeve facing the punching end to fix the sliding sleeve.

7. The positioning device according to claim 1, wherein: The positioning device also includes an elastic member, which is arranged between the positioning cylinder and the movable rod. In the length direction of the movable rod, one end of the elastic member abuts against the positioning cylinder, and the other end of the elastic member abuts against the movable rod, so that the elastic member is compressed or released when the movable rod rises or falls.

8. The positioning device according to claim 7, wherein: The elastic member is a spring, which is sleeved on the outer circumference of the movable rod. The inner wall of the positioning cylinder is provided with a first boss, and the outer wall of the movable rod is provided with a second boss, and the first boss and the second boss are respectively in contact with the two ends of the spring.

9. The positioning device according to any one of claims 1 to 8, characterized in that The positioning device further comprises a handle, which is fixed to the pulling end to pull the movable rod up or down.

10. The positioning device according to any one of claims 1 to 8, characterized in that The positioning tube is provided with a mounting protrusion ring, which is arranged on the side of the positioning tube close to the pulling end. The positioning device also includes a nut, which is detachably arranged on the side of the mounting protrusion ring away from the support assembly and is threadedly connected to the movable rod.

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