Positioning device for processing port of ball conveying pipeline of table tennis serving machine
By designing a positioning device that includes a support base, an adjusting screw, and a cylinder, the instability problem of the ball delivery pipeline during deburring is solved, achieving stable positioning and support of the ball delivery pipeline and improving the training applicability of the table tennis ball serving machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-14
AI Technical Summary
The ball delivery pipes of existing table tennis ball serving machines are unstable during deburring, resulting in unsatisfactory deburring effects and making it difficult to meet the needs of multi-directional and multi-angle training.
A positioning device including a base and a positioning mechanism is designed. The positioning mechanism consists of a support seat, an adjusting screw, an adjusting plate, a ring seat, a cylinder, a ring, a fixing rod, and a limiting part. Through the cooperation of the adjusting screw and the cylinder, the stable positioning and support of the ball conveying pipeline are achieved.
It achieves stable positioning and support of the ball conveying pipe, ensures the effectiveness of deburring treatment, adapts to ball conveying pipes of different lengths, and improves the stability and applicability of training equipment.
Smart Images

Figure CN224113239U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of table tennis ball serving machine processing technology, and in particular to a positioning device for processing the port of the ball delivery pipe of a table tennis ball serving machine. Background Technology
[0002] Table tennis ball-serving machines were developed to address the shortage of coaches. Commercially available machines typically only serve in a single direction, suitable for beginners but insufficient for advanced learners. Multi-directional, multi-angle practice still requires the accompaniment of a coach or training partner. To address this shortage of personnel, meet the needs of trainees for on-demand training, and improve training effectiveness, researchers began exploring new table tennis ball-serving machines.
[0003] The production of table tennis ball serving machines requires the use of ball conveying pipes. The processing of ball conveying pipes requires deburring their ends. Conventionally, this is done manually by holding a deburring machine in one hand and the ball conveying pipe in the other. However, this operation is prone to unsatisfactory deburring results due to the instability of the ball conveying pipe. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a positioning device for processing the port of the ball delivery pipe of a table tennis ball serving machine, thereby solving the problems mentioned in the background art.
[0005] A positioning device for handling the port of the ball delivery pipe of a table tennis ball serving machine includes a base and a positioning mechanism mounted on the base. The positioning mechanism includes a support seat, an adjusting screw, an adjusting plate, a ring seat, a positioning screw, a cylinder, a ring, a fixing rod, a limiting part, and a movable shaft. The adjusting screw is rotatably mounted on the bottom of the support seat. The adjusting plate is rotatably connected to the top of the adjusting screw and embedded in the groove of the support seat. The ring seat is adjustable and limited on the support seat by the positioning screw and nut at the bottom. There are two cylinders, which are respectively fixed on both sides of the ring seat. The ring is sleeved on the outer ring of the ring seat and is fixedly connected to the output ends of the two cylinders. There are three limiting parts, which are respectively rotatably mounted on the ear plates at the upper end of the ring seat. The movable shaft is slidably disposed in the waist hole of the limiting part, and its two ends are fixedly connected to the ring through the fixing rod.
[0006] By adopting the above technical solution, it is possible to adjust according to the length of the ball conveying pipeline and to stably position the ball conveying pipeline.
[0007] The center of the support base is provided with a groove in the shape of an inverted frustum. The groove of the support base is provided in three sets and is set at the same angle to the center point of the support base.
[0008] By adopting the above technical solution, the stability of the bottom of the ball conveying pipeline is limited.
[0009] The adjustment plate has a disc structure in the middle, and the diameter of the disc is smaller than the minimum diameter of the groove in the support seat.
[0010] By adopting the above technical solution, the bottom of the ball conveying pipeline is stably supported.
[0011] The center point of the support base, the center point of the adjusting plate, and the center point of the ring base are on the same vertical line.
[0012] By adopting the above technical solution, the ball conveying pipeline is ensured to be placed in a vertical position.
[0013] The ring seat is located between two ear plates in the same group and has a slot for the movement of the limiting part.
[0014] By adopting the above technical solution, it is convenient to adjust the limiting part to restrict the ball conveying pipeline.
[0015] The advantages of this positioning device for handling the port of the ball delivery pipe of a table tennis ball serving machine are:
[0016] 1. The bottom of the ball conveying pipe is abutted in the groove in the middle of the support seat. Rotating the adjusting screw pushes the adjusting plate to move upward, which, together with the support seat, further supports the bottom of the ball conveying pipe. The driving cylinder pushes the ring to move upward. The ring pushes the movable shaft through the fixed rod, thereby controlling the other end of the limiting part to apply pressure to the outer wall of the ball conveying pipe, so as to adjust according to the length of the ball conveying pipe and to stably position the ball conveying pipe.
[0017] 2. The height of the ring seat can also be adjusted. Loosen the nut on the positioning screw, adjust the height of the ring seat, and then rotate the nut on the positioning screw to lock the positioning screw on the support seat. This allows the limiting part to position the upper end of the ball conveying pipe of different lengths, ensuring the stability of the ball conveying pipe positioning. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the positioning device for processing the ball delivery pipe port of the table tennis ball serving machine proposed in this utility model.
[0019] Figure 2 This is a diagram of a positioning device for processing the ball delivery pipe port of a table tennis ball serving machine according to this utility model.
[0020] In the diagram: 1. Base; 2. Support seat; 3. Adjusting screw; 4. Adjusting plate; 5. Ring seat; 6. Positioning screw; 7. Cylinder; 8. Ring; 9. Fixing rod; 10. Limiting part; 11. Movable shaft. Detailed Implementation
[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.
[0022] Reference Figure 1-2 A positioning device for handling the port of the ball delivery pipe of a table tennis ball serving machine includes a base 1 and a positioning mechanism installed on the base 1. The positioning mechanism includes a support seat 2, an adjusting screw 3, an adjusting plate 4, a ring seat 5, a positioning screw 6, a cylinder 7, a ring 8, a fixing rod 9, a limiting part 10, and a movable shaft 11. The adjusting screw 3 is rotatably installed at the bottom of the support seat 2. The adjusting plate 4 is rotatably connected to the top of the adjusting screw 3 and embedded in the groove of the support seat 2. The ring seat 5 is adjustable and limited on the support seat 2 by the positioning screw 6 and the nut at the bottom. There are two cylinders 7, which are respectively fixed on both sides of the ring seat 5. The ring 8 is sleeved on the outer ring of the ring seat 5 and is fixedly connected to the output end of the two cylinders 7. There are three limiting parts 10, which are respectively rotatably installed on the ear plates at the upper end of the ring seat 5. The movable shaft 11 is slidably installed in the waist hole of the limiting part 10, and its two ends are fixedly connected to the ring 8 by the fixing rod 9.
[0023] The ball conveying pipe is placed into the ring seat 5 from above, so that the bottom of the ball conveying pipe abuts against the groove in the middle of the support seat 2. Then, the adjusting screw 3 can be rotated to push the adjusting plate 4 to move upward, which, together with the support seat 2, further supports the bottom of the ball conveying pipe. The driving cylinder 7 pushes the ring 8 to move upward. The ring 8 pushes the movable shaft 11 through the fixed rod 9. Because the movable shaft 11 slides in the waist hole of the limiting part 10, the movable shaft 11 pushes one end of the limiting part 10, so that the limiting part 10 rotates at the ear plate of the ring seat 5. Then, the other end of the limiting part 10 applies pressure to the outer wall of the ball conveying pipe, thereby positioning the ball conveying pipe.
[0024] The device can also adjust the height of the ring seat 5. Loosen the nut on the positioning screw 6, adjust the height of the ring seat 5, and then rotate the nut on the positioning screw 6 to lock the positioning screw 6 on the support seat 2. This allows the limiting part 10 to position the upper end of the ball conveying pipe of different lengths, ensuring the stability of the ball conveying pipe positioning.
[0025] The middle part of the support base 2 is a groove with an inverted frustum structure. The groove of the support base 2 has three sets and is set at the same angle to the center point of the support base 2. The center point of the support base 2, the center point of the adjusting plate 4 and the center point of the ring seat 5 are on the same vertical line. After the ball conveying pipe is placed on the support base 2, the bottom of the ball conveying pipe can be stably supported by adjusting the adjusting plate 4. The upper end of the ball conveying pipe is clamped by the limiting part 10, thereby stably clamping and limiting the ball conveying pipe.
[0026] The middle part of the adjusting plate 4 is a disc structure, the diameter of which is smaller than the minimum diameter of the groove of the support seat 2. Since the diameter of the ball conveying pipe may vary, the position of the adjusting plate 4 is adjusted after the ball conveying pipe is placed on the support seat 2 to ensure stable support for the ball conveying pipe.
[0027] The ring seat 5 is located between two ear plates in the same group and has a slot for the movement of the limiting part 10; this ensures that the limiting part 10 can rotate at the ear plate on the ring seat 5 without being obstructed by the ring seat 5.
[0028] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A positioning device for processing the port of the ball delivery pipe of a table tennis ball serving machine, comprising a base (1) and a positioning mechanism mounted on the base (1), characterized in that: The positioning mechanism includes a support base (2), an adjusting screw (3), an adjusting plate (4), a ring seat (5), a positioning screw (6), a cylinder (7), a ring (8), a fixing rod (9), a limiting part (10), and a movable shaft (11). The adjusting screw (3) is rotatably mounted on the bottom of the support base (2). The adjusting plate (4) is rotatably connected to the top of the adjusting screw (3) and embedded in the groove of the support base (2). The ring seat (5) is connected to the positioning screw (6) at the bottom and... The nut is adjustable and limited on the support base (2). The cylinder (7) consists of two cylinders, which are respectively fixed on both sides of the ring seat (5). The ring (8) is fitted on the outer ring of the ring seat (5) and is fixedly connected to the output ends of the two cylinders (7). The limiting part (10) consists of three ear plates, which are respectively rotatably installed on the upper end of the ring seat (5). The movable shaft (11) is slidably arranged in the waist hole of the limiting part (10), and its two ends are fixedly connected to the ring (8) through the fixing rod (9).
2. The positioning device for processing the ball conveying pipe port of the table tennis ball serving machine according to claim 1, characterized in that: The middle part of the support base (2) is a groove with an inverted frustum structure. The groove of the support base (2) is provided in three sets and is set at the same angle to the center point of the support base (2).
3. The positioning device for processing the ball conveying pipe port of the table tennis ball serving machine according to claim 2, characterized in that: The adjustment plate (4) has a disc structure in the middle, and the diameter of the disc is smaller than the minimum diameter of the groove of the support base (2).
4. The positioning device for processing the ball conveying pipe port of the table tennis ball serving machine according to claim 3, characterized in that: The center point of the support base (2), the center point of the adjusting plate (4), and the center point of the ring base (5) are on the same vertical line.
5. The positioning device for processing the ball conveying pipe port of the table tennis ball serving machine according to claim 4, characterized in that: The ring seat (5) is located between two ear plates in the same group and has a slot for the movement of the limiting part (10).