Spherical piece positioning device

Abstract

The utility model provides a spherical piece positioning device, and relates to the technical field of positioning devices. The positioning device comprises a positioning platform, a sliding groove is formed in the top face of the positioning platform, a two-way lead screw is rotationally connected into the sliding groove, two positioning mechanisms are arranged in the positioning platform, each positioning mechanism comprises a threaded sliding block and a connecting rod, a clamping block is arranged at one end of each connecting rod, and a clamping block is arranged at the other end of each connecting rod. Empty grooves are formed in the two ends of each clamping block. Through the arrangement of the bidirectional lead screw, the clamping block, the threaded sliding block and the clamping jaw, the bidirectional lead screw rotates to drive the threaded sliding block to slide, so that the clamping block is driven to be attached to the surface of the spherical part, and then the clamping jaw can clamp the spherical part according to the size of the spherical part by rotating the clamping jaw; the spherical part is prevented from rolling in the clamping process, the area covered by the positioning device when the spherical part is fixed is reduced, and errors generated due to the fact that the spherical part is shielded in the scanning process are reduced.

Description

Technical Field

[0001] The utility model relates to a positioning device, in particular to a spherical piece positioning device, and belongs to the technical field of positioning devices. Background Art

[0002] 3D scanning is a device that uses a large amount of radiation absorption data obtained when scanning around the object to reconstruct its tomographic image. The collected data is often used for three-dimensional reconstruction calculations to create digital models of actual objects. Due to their inherent structure, spherical parts are prone to movement and need to be positioned during scanning. However, the positioning position cannot overlap too much, otherwise it will affect the scanning accuracy.

[0003] According to the patent number CN219818302U, a positioning device for spherical parts is disclosed, which includes a frame body, a positioning extension rod and a positioning piece. The frame body includes a flat base and a column frame on the upper end face. The column frame has a radial through hole. A locking screw communicating with the radial through hole is provided at the top of the column frame. The positioning extension rod passes through the radial through hole, and a transverse groove is provided at one end of the positioning extension rod.

[0004] During the implementation of the above scheme, the center of the part can be statically aligned and the angular freedom of the positioning device can be positioned to limit the angular freedom. However, during the implementation of the above scheme, when positioning the spherical part, the area covered by the positioning device is large, making it difficult to perform multi-angle scanning on the positioned spherical part, and large errors will be generated during the scanning process due to the obstruction of the positioning device. For this reason, we provide a spherical part positioning device to solve the above problem. Utility Model Content

[0005] (1) Technical problems solved

[0006] The purpose of the present invention is to provide a spherical part positioning device in order to solve the above problems, so as to solve the problem in the prior art that when the spherical part is positioned and scanned, the positioning device will cause a large area of ​​the spherical part to be blocked, thereby affecting the scanning accuracy.

[0007] (2) Technical solution

[0008] The utility model is realized through the following technical solutions: a spherical part positioning device, including a positioning platform, a sliding groove is provided on the top surface of the positioning platform, a bidirectional screw rod is rotatably connected to the inside of the sliding groove, two positioning mechanisms are arranged inside the positioning platform, the positioning mechanism includes a threaded slider and a connecting rod, a clamping block is provided at one end of the connecting rod, empty grooves are provided at both ends of the clamping block, a damping rotating rod is fixedly connected to the inner wall of the empty groove, and a clamping claw is rotatably connected to the outer surface of the damping rotating rod.

[0009] Preferably, the outer surfaces of the clamping block and the clamping claw are fixedly connected with friction pads, and the end of the connecting rod is threadedly connected with a threaded nail. The friction pads can increase the clamping stability of the device on the spherical member.

[0010] Preferably, the threaded nail passes through the clamping block and is slidably connected to the clamping block. The end of the threaded nail is threadedly connected with a nut. The threaded nail and the nut facilitate the staff to adjust the clamping angle of the clamping block.

[0011] Preferably, a connecting block is fixedly connected to the top surface of the threaded slider, and the connecting block is fixedly connected to the connecting rod, and the connecting block plays a transmission role.

[0012] Preferably, the inner wall of the slide groove is fixedly connected with an auxiliary support rod, the threaded slider is slidably connected to the slide groove, the threaded slider is threadedly connected to the bidirectional screw rod, and the threaded slider is slidably connected to the auxiliary support rod, and the auxiliary support rod provides support and limitation for the sliding of the threaded slider.

[0013] Preferably, a servo motor is fixedly mounted on the outer surface of the positioning platform, the bidirectional screw is fixedly connected to the output shaft of the servo motor, and the servo motor is the power source for adjusting the clamping distance of the device.

[0014] Preferably, a flexible rod is fixedly connected to the top surface of the positioning platform, one end of the flexible rod is fixedly connected to a fixing seat, and a scanner is fixedly installed on the outer surface of the fixing seat, and the scanner plays the role of object scanning and data uploading.

[0015] The utility model provides a spherical piece positioning device, which has the following beneficial effects:

[0016] 1. The utility model is equipped with a bidirectional screw, a clamping block, a threaded slider and a clamping claw. The rotation of the bidirectional screw can drive the threaded slider to slide, thereby driving the clamping block to fit the surface of the spherical part. Then, by rotating the clamping claw, the spherical part can be clamped according to the size of the spherical part, thereby preventing the spherical part from rolling during the clamping process. This effectively prevents the spherical part from rolling during the scanning process and affecting the scanning operation of the device, reduces the area covered by the positioning device when fixing the spherical part, and reduces the error caused by the spherical part being blocked during the scanning process.

[0017] 2. The utility model can effectively provide support for the sliding of the threaded slider through the setting of the auxiliary support rod, thereby preventing the threaded slider from shaking during the sliding process and affecting the fixing effect of the device on the spherical part. The setting of the flexible rod can facilitate the staff to change the position of the scanner so that the scanner can better scan the spherical part. The setting of the friction pad can increase the friction between the device and the spherical part, improve the stability of the clamping, and prevent the spherical part from rotating on its own due to factors such as wind during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the positioning platform of the utility model;

[0020] Figure 3 This is a structural diagram of the positioning mechanism of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the scanner of the present utility model.

[0022]

Main component symbol description

[0023] 1. Positioning platform; 2. Slide; 3. Bidirectional screw;

[0024] 4. Positioning mechanism; 401. Threaded slider; 402. Connecting rod; 403. Clamping block; 404. Empty slot; 405. Damping rod; 406. Clamping claw; 407. Friction pad; 408. Connecting block; 409. Threaded nail; 410. Nut;

[0025] 5. Auxiliary support rod; 6. Servo motor; 7. Flexible rod; 8. Fixed base; 9. Scanner. DETAILED DESCRIPTION

[0026] An embodiment of the utility model provides a spherical component positioning device.

[0027] See also Figure 1 、 Figure 2 and Figure 4 , including a positioning platform 1, a slide groove 2 is opened on the top surface of the positioning platform 1, and the bidirectional screw rod 3, servo motor 6, flexible rod 7 and scanner 9 involved in this application are all existing technologies and will not be described in detail in this application.

[0028] See also Figure 1 and Figure 2 The internal rotation of the slide 2 is connected to the bidirectional screw rod 3, and the threaded slider 401 is threadedly connected to the bidirectional screw rod 3. The bidirectional screw rod 3 rotates half to the left and half to the right. When the bidirectional screw rod 3 rotates, it can drive the two threaded sliders 401 to move closer to or away from each other, thereby driving the two threaded sliders 401 to slide synchronously in the slide 2, making it easy to adjust the distance between the two threaded sliders 401, so that the device can clamp and fix spherical parts of various types and sizes.

[0029] An auxiliary strut 5 is fixedly connected to the inner wall of the slide groove 2, and the threaded slider 401 is slidably connected to the slide groove 2. The threaded slider 401 is slidably connected to the auxiliary strut 5. The auxiliary strut 5 and the slide groove 2 provide support for the sliding of the threaded slider 401, so that the threaded slider 401 can remain stable while sliding with the bidirectional screw rod 3, avoiding shaking of the threaded slider 401 during sliding, which affects the fixing effect of the device on the spherical part.

[0030] A servo motor 6 is fixedly installed on the outer surface of the positioning platform 1, and the bidirectional screw rod 3 is fixedly connected to the output shaft of the servo motor 6. The staff can control the rotation of the bidirectional screw rod 3 through the servo motor 6. The servo motor 6 is started to drive the bidirectional screw rod 3 to rotate. The rotation of the bidirectional screw rod 3 can drive the two threaded sliders 401 to slide, thereby adjusting the relative positions of the two positioning mechanisms 4.

[0031] See also Figure 1 and Figure 4 The top surface of the positioning platform 1 is fixedly connected with a flexible rod 7, one end of the flexible rod 7 is fixedly connected with a fixing seat 8, and a scanner 9 is fixedly installed on the outer surface of the fixing seat 8. The flexible rod 7 is made of flexible material and has the property that an object that is deformed by force cannot restore its original shape after the force is removed, rather than keeping the deformed shape unchanged. The scanning angle of the scanner 9 can be adjusted according to the actual size of the spherical part. The scanner 9 can scan the spherical part clamped by the positioning mechanism 4 and upload the scanned data.

[0032] See also Figure 1 、 Figure 2 and Figure 3 Two positioning mechanisms 4 are provided inside the positioning platform 1. The positioning mechanism 4 includes a threaded slider 401 and a connecting rod 402. Through the setting of the two positioning mechanisms 4, the spherical part can be kept stable during the clamping process, avoiding the movement of the spherical part due to its own structure, which affects the scanning of the scanner 9.

[0033] The top surface of the threaded slider 401 is fixedly connected to a connecting block 408, and the connecting block 408 is fixedly connected to the connecting rod 402. The threaded slider 401 slides inside the slide groove 2 to drive the connecting rod 402 to move, thereby changing the position of the connecting rod 402, so that the device can be suitable for spherical parts of various sizes, thereby improving the applicability of the device.

[0034] A clamping block 403 is provided at one end of the connecting rod 402. The top surface of the clamping block 403 is designed as an inclined surface, which enables the clamping block 403 to fix the spherical part when it is attached to the bottom end of the spherical part, thereby improving the positioning stability of the device.

[0035] The end of the connecting rod 402 is threadedly connected with a threaded nail 409, which passes through the clamping block 403 and is slidingly connected to the clamping block 403. The end of the threaded nail 409 is threadedly connected with a nut 410. Through the arrangement of the threaded nail 409 and the nut 410, the clamping block 403 and the connecting rod 402 can maintain a stable connection. The staff can adjust the clamping angle of the clamping block 403 according to the size of the spherical part, so that the device can better clamp a variety of spherical parts.

[0036] Both ends of the clamping block 403 are provided with a slot 404, and the inner wall of the slot 404 is fixedly connected to a damping rotating rod 405. There is a large friction force between the damping rotating rod 405 and the clamping claw 406. The staff can manually adjust the clamping angle of the clamping claw 406 according to the size of the positioning spherical part so as to better clamp the spherical part. When the clamping claw 406 is not subjected to external force, it can rely on friction to maintain stability with the clamping block 403, preventing the clamping claw 406 from moving on its own during the clamping process and affecting the clamping effect of the device.

[0037] The outer surface of the damping rod 405 is rotatably connected to a clamping claw 406. When the diameter of the spherical part is large, the clamping claws 406 at both ends of the clamping block 403 can be adjusted to move the clamping claws 406 away from each other, thereby increasing the clamping range of the device. When the diameter of the spherical part is small, the clamping claws 406 are adjusted to move closer to each other so that the device can clamp the small ball.

[0038] The outer surfaces of the clamping block 403 and the clamping claw 406 are fixedly connected with a friction pad 407. The friction pad 407 can increase the friction between the device and the spherical part, improve the stability of the clamping, and prevent the spherical part from rotating on its own due to factors such as wind during the clamping process. The clamping block 403 and the clamping claw 406 are relatively small in size and can only clamp the bottom end of the spherical part, reducing the influence of the positioning device on the scanning accuracy of the scanner 9.

[0039] Working principle: When the staff wants to scan the spherical part, first place the spherical part in the middle position of the positioning platform 1, and then start the servo motor 6. The servo motor 6 starts to drive the bidirectional screw 3 to rotate. The rotation of the bidirectional screw 3 drives the two threaded sliders 401 to approach each other inside the slide groove 2, so that the clamping block 403 can fit to the bottom of the spherical part, and then the clamping claw 406 is rotated to clamp the spherical part according to the size of the spherical part to prevent the spherical part from rolling during the clamping process. Finally, the scanner 9 is pulled to complete the scanning of the spherical part, effectively preventing the spherical part from rolling during the scanning process and affecting the scanning operation of the device.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A spherical part positioning device, comprising a positioning platform (1), characterized in that: The top surface of the positioning platform (1) is provided with a slide groove (2), the interior of the slide groove (2) is rotatably connected to a bidirectional screw rod (3), and the interior of the positioning platform (1) is provided with two positioning mechanisms (4), the positioning mechanism (4) includes a threaded slider (401) and a connecting rod (402), one end of the connecting rod (402) is provided with a clamping block (403), both ends of the clamping block (403) are provided with an empty groove (404), the inner wall of the empty groove (404) is fixedly connected to a damping rotating rod (405), and the outer surface of the damping rotating rod (405) is rotatably connected to a clamping claw (406).

2. A spherical member positioning device according to claim 1, characterized in that: The outer surfaces of the clamping block (403) and the clamping claw (406) are both fixedly connected with a friction pad (407), and the end of the connecting rod (402) is threadedly connected with a screw nail (409).

3. A spherical component positioning device according to claim 2, characterized in that: The threaded nail (409) passes through the clamping block (403) and is slidably connected to the clamping block (403), and the end of the threaded nail (409) is threadedly connected to a nut (410).

4. A spherical member positioning device according to claim 1, characterized in that: The top surface of the threaded slider (401) is fixedly connected to a connecting block (408), and the connecting block (408) is fixedly connected to the connecting rod (402).

5. A spherical piece positioning device according to claim 1, characterized in that: The inner wall of the chute (2) is fixedly connected to an auxiliary support rod (5), the threaded slider (401) is slidably connected to the chute (2), the threaded slider (401) is threadedly connected to the bidirectional screw rod (3), and the threaded slider (401) is slidably connected to the auxiliary support rod (5).

6. A spherical piece positioning device according to claim 1, characterized in that: A servo motor (6) is fixedly mounted on the outer surface of the positioning platform (1), and the bidirectional screw rod (3) is fixedly connected to the output shaft of the servo motor (6).

7. A spherical member positioning device according to claim 1, characterized in that: The top surface of the positioning platform (1) is fixedly connected to a flexible rod (7), one end of the flexible rod (7) is fixedly connected to a fixing seat (8), and a scanner (9) is fixedly mounted on the outer surface of the fixing seat (8).

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