High-precision buffer supporting rod

Abstract

The utility model discloses a high-precision buffering supporting rod which comprises a guide rod, a positioning connector, a mounting connector, a guide sleeve and an elastic piece. The positioning connector and the mounting connector are fixedly arranged at the two ends of the guide rod respectively, the guide rod is sleeved with the guide sleeve and located between the positioning connector and the mounting connector, and the guide rod is sleeved with the elastic piece and located between the guide sleeve and the mounting connector; a ball spline structure is arranged between the guide sleeve and the guide rod, the guide sleeve is a spline nut, the guide rod is a spline shaft, and the guide sleeve is in linear sliding connection with the guide rod through the ball spline structure. The guide sleeve is in linear sliding connection with the guide rod through the ball spline structure, so that tight linear sliding connection is achieved between the guide sleeve and the guide rod, a gap between the guide sleeve and the guide rod is remarkably reduced, swing of the guide rod is effectively restrained, and the swing phenomenon of the guide rod is almost eliminated. In the working state, lifting of the guide rod is completed through rolling of the balls along the key grooves, direct hard friction is avoided through the design, abrasion and noise are remarkably reduced, meanwhile, dust is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of buffer support rods, in particular to a high-precision buffer support rod. Background Art

[0002] As a key mechanical component, the buffer rod is designed to absorb and reduce the impact and vibration caused by machine operation or workpiece movement, thereby protecting the equipment from damage, extending its service life, and ensuring smooth operation. The application of buffer rods is particularly important in production environments where heavy load operations are frequently performed or workpieces of different heights need to be accommodated, such as metallurgy, papermaking, automobile manufacturing, and glass processing.

[0003] In the prior art, the basic structure of the buffer support rod usually includes a guide rod as the supporting body and a guide sleeve that can slide along the guide rod. This design cleverly utilizes the gap between the two and has a built-in spring or other elastic element to achieve the buffering effect. In addition to the basic buffering effect, this design can also automatically adapt to changes in the height of the workpiece, and compensate for the height difference between different workpieces by moving the guide sleeve up and down to ensure the stability of contact or support, which is crucial to improving production efficiency and processing accuracy.

[0004] The anti-rotation type buffer rod is a functional upgrade based on the traditional buffer rod, which is specially designed to prevent unnecessary rotation or twisting movement in the process of absorbing impact and compensating height differences. While maintaining the original buffering performance, this type of buffer rod increases the demand for precise position control and stability, especially for industrial applications that have strict requirements on installation direction and alignment.

[0005] However, due to machining tolerances and other reasons, the anti-rotation type buffer support rods currently on the market have a certain gap between the guide rod and the guide sleeve, which makes the guide rod deflect at a certain angle during operation, and therefore cannot meet certain high-precision requirements. In addition, due to hard friction during the operation of the guide rod, a certain amount of dust and noise will be generated, thus affecting its use. Utility Model Content

[0006] In view of the problems in the background technology, the purpose of the utility model is to provide a high-precision buffer support rod, including a guide rod, a positioning joint, a mounting joint, a guide sleeve and an elastic member;

[0007] The positioning joint and the mounting joint are respectively fixedly arranged at two ends of the guide rod, the guide sleeve is sleeved on the guide rod and located between the positioning joint and the mounting joint, and the elastic member is sleeved on the guide rod and located between the guide sleeve and the mounting joint;

[0008] A ball spline structure is provided between the guide sleeve and the guide rod, the guide sleeve is a spline nut, the guide rod is a spline shaft, and the guide sleeve is linearly slidably connected to the guide rod through the ball spline structure.

[0009] According to an embodiment of the utility model, a guide sleeve cover is fixedly provided at both ends of the guide sleeve, and the guide sleeve cover is sleeved on the guide rod, and the guide sleeve cover is used to limit the ball of the ball spline structure.

[0010] According to one embodiment of the utility model, a bushing is sleeved on the guide rod, and the bushing is arranged between the guide sleeve and the mounting joint, a first step is provided on the bushing, and one end of the elastic member close to the guide sleeve is sleeved on the first step on the bushing.

[0011] According to an embodiment of the utility model, a second step is provided on the installation joint, and one end of the elastic member close to the installation joint is sleeved on the second step.

[0012] According to an embodiment of the present invention, the elastic member is a spring.

[0013] According to an embodiment of the utility model, the positioning joint and the installation joint are threadedly connected to the guide rod.

[0014] According to an embodiment of the utility model, the guide rod, the positioning joint and the installation joint are provided with air passages along their axial directions, and the air passages are used for ventilation.

[0015] According to an embodiment of the utility model, the mounting joint is used to connect with the suction cup, the positioning joint is used to connect with the air pipe, and the guide sleeve is used to be installed to a fixed position.

[0016] According to an embodiment of the utility model, the mounting joint is threadedly connected to the suction cup.

[0017] Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects compared with the prior art:

[0018] The guide sleeve of the utility model is connected to the guide rod in a linear sliding manner through a ball spline structure, so that a tight linear sliding connection is achieved between the guide sleeve and the guide rod, and the gap between the two is significantly reduced. The ball spline structure relies on the precise matching of the keyway and the ball to effectively restrict the swing of the guide rod, almost eliminating the swing phenomenon of the guide rod, and can reduce the swing amplitude of the guide rod to a state of almost no swing. In the working state, the lifting and lowering of the guide rod is completed by the rolling of the ball along the keyway. This design avoids direct hard friction, significantly reduces wear and noise, and at the same time reduces dust generation and prolongs the service life. In summary, compared with the prior art, the ball spline structure design of the utility model brings the following practical effects:

[0019] 1. Improve sliding accuracy and stability: Through the precise ball spline structure connection, reduce the gap, enhance the system stability, improve the motion accuracy, and the application of repeated positioning accuracy is crucial.

[0020] 2. Reduce wear and noise: The rolling mechanism replaces sliding, reducing physical wear and tear while lowering noise levels, creating a better working environment.

[0021] 3. Improve cleanliness and durability: Reduce dust generated by friction, which is beneficial to maintaining a clean environment and extending the life of equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is the axonometric drawing of the utility model;

[0024] Figure 2 This is the front view of the utility model;

[0025] Figure 3 This is a cross-sectional view of the utility model;

[0026] Figure 4 For this utility model Figure 3 A partial enlarged view of .

[0027] Description of reference numerals:

[0028] 1. Positioning joint; 2. Guide rod; 3. Guide sleeve; 4. Spring; 5. Mounting joint; 6. Ball; 7. Keyway; 8. Guide sleeve cover; 9. Bushing; 10. First step; 11. Second step; 12. Airway. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the utility model will become clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise ratios, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0030] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] See also Figures 1 to 4The core of the utility model is to provide a high-precision buffer support rod, which can be applied to vacuum suction cups. Vacuum suction cups are widely used in logistics, production sorting, food industry, automobile production, glass, sheet metal handling and other fields. The high-precision buffer support rod of the utility model can not only compensate for the height difference of the workpiece, but also play a role in buffering the impact between the vacuum suction cup and the workpiece. Of course, the high-precision buffer support rod of the utility model can also be used in other fields, which is not limited in this embodiment.

[0032] The high-precision buffer support rod comprises a guide rod 2, a positioning joint 1, a mounting joint 5, a guide sleeve 3 and an elastic member. The positioning joint 1 and the mounting joint 5 are respectively fixed at both ends of the guide rod 2 by threaded connection, the guide sleeve 3 is sleeved on the guide rod 2 and located between the positioning joint 1 and the mounting joint 5, the elastic member is sleeved on the guide rod 2 and located between the guide sleeve 3 and the mounting joint 5, and the elastic member is a spring 4 in this embodiment.

[0033] An air duct 12 is provided along the axial direction of the guide rod 2, the positioning joint 1 and the mounting joint 5, the air duct 12 is used for ventilation, the mounting joint 5 is used to connect with the suction cup, and in this embodiment, the mounting joint 5 is threadedly connected with the suction cup, the positioning joint 1 is used to connect with the air pipe, and the guide sleeve 3 is used to be installed to a fixed position.

[0034] Furthermore, a bushing 9 is sleeved on the guide rod 2, and the bushing 9 is arranged between the guide sleeve 3 and the mounting joint 5. A first step 10 is provided on the bushing 9, and one end of the spring 4 close to the guide sleeve 3 is sleeved on the first step 10 on the bushing 9. A second step 11 is provided on the mounting joint 5, and one end of the spring 4 close to the mounting joint 5 is sleeved on the second step 11.

[0035] A ball spline structure is provided between the guide sleeve 3 and the guide rod 2. The guide sleeve 3 is a spline nut, the guide rod 2 is a spline shaft, a keyway 7 is provided on the guide rod 2, a ball 6 is provided between the guide sleeve 3 and the guide rod 2, and the ball 6 is arranged in the keyway 7. The guide sleeve 3 is linearly slidably connected to the guide rod 2 through the ball spline structure.

[0036] The ball spline structure includes a spline nut, a spline shaft, a ball 6, a retainer, etc. For details, please refer to the prior art and will not be repeated in this embodiment.

[0037] Furthermore, a guide sleeve cover 8 is fixedly provided at both ends of the guide sleeve 3, and the guide sleeve cover 8 is sleeved on the guide rod 2, and the guide sleeve cover 8 is used to limit the ball 6 of the ball spline structure.

[0038] The guide sleeve 3 of the utility model is connected to the guide rod 2 in a linear sliding manner through a ball spline structure, so that a tight linear sliding connection is achieved between the guide sleeve 3 and the guide rod 2, and the gap between the two is significantly reduced. The ball spline structure relies on the precise matching of the keyway 7 and the ball 6 to effectively restrict the swing of the guide rod 2, almost eliminate the swing phenomenon of the guide rod 2, and can reduce the swing amplitude of the guide rod 2 to a state of almost no swing. In the working state, the lifting and lowering of the guide rod 2 is completed by the rolling of the ball 6 along the keyway 7. This design avoids direct hard friction, significantly reduces wear and noise, and at the same time reduces dust generation and prolongs the service life. In summary, compared with the prior art, the ball spline structure design of the utility model brings the following practical effects:

[0039] 1. Improve sliding accuracy and stability: Through the precise ball spline structure connection, reduce the gap, enhance the system stability, improve the motion accuracy, and the application of repeated positioning accuracy is crucial.

[0040] 2. Reduce wear and noise: The rolling mechanism replaces sliding, reducing physical wear and tear while lowering noise levels, creating a better working environment.

[0041] 3. Improve cleanliness and durability: Reduce dust generated by friction, which is beneficial to maintaining a clean environment and extending the life of equipment.

[0042] In other words, the utility model is a ball spline type buffer support rod, which has the characteristics of high precision, low noise, low dust generation, and low swing amplitude. The above term "dust generation" refers to the precipitate generated by the friction of the guide rod 2 during the action of the buffer support rod, and the above term "swing amplitude" refers to the shaking caused by the matching clearance between the guide rod 2 and the guide sleeve 3. The utility model is mainly suitable for working environments with extremely high precision requirements for repeated positioning and high requirements for dust generation and noise, such as 3C electronics and other industries.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalent technologies, they still fall within the protection scope of the present invention.

Claims

1. A high-precision buffer support rod, characterized in that: It includes a guide rod, a positioning joint, a mounting joint, a guide sleeve and an elastic member; The positioning joint and the mounting joint are respectively fixedly arranged at two ends of the guide rod, the guide sleeve is sleeved on the guide rod and located between the positioning joint and the mounting joint, and the elastic member is sleeved on the guide rod and located between the guide sleeve and the mounting joint; A ball spline structure is provided between the guide sleeve and the guide rod, the guide sleeve is a spline nut, the guide rod is a spline shaft, and the guide sleeve is linearly slidably connected with the guide rod through the ball spline structure.

2. The high-precision buffer support rod according to claim 1, characterized in that: A guide sleeve cover is fixedly provided at both ends of the guide sleeve, and the guide sleeve cover is sleeved on the guide rod. The guide sleeve cover is used to limit the ball of the ball spline structure.

3. The high-precision buffer support rod according to claim 1, characterized in that: A bushing is sleeved on the guide rod, and the bushing is arranged between the guide sleeve and the mounting joint. A first step is provided on the bushing, and one end of the elastic member close to the guide sleeve is sleeved on the first step on the bushing.

4. The high-precision buffer support rod according to claim 1 or 3, characterized in that: The installation joint is provided with a second step, and one end of the elastic member close to the installation joint is sleeved on the second step.

5. The high-precision buffer support rod according to claim 1, characterized in that: The elastic member is a spring.

6. The high-precision buffer support rod according to claim 1, characterized in that: The positioning joint and the mounting joint are threadedly connected to the guide rod.

7. The high-precision buffer support rod according to claim 1, characterized in that: The guide rod, the positioning joint and the mounting joint are provided with air passages along their axial directions, and the air passages are used for ventilation.

8. The high-precision buffer support rod according to claim 7, characterized in that: The mounting joint is used to be connected to the suction cup, the positioning joint is used to be connected to the air pipe, and the guide sleeve is used to be installed to a fixed position.

9. The high-precision buffer support rod according to claim 8, characterized in that: The mounting joint is threadedly connected to the suction cup.

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