Pin shaft jacking and positioning device

Abstract

The utility model provides a pin shaft jacking and positioning device, which belongs to the technical field of pin shaft positioning, and comprises a manipulator component, a cylinder, a positioning plate, a switch and a guide rail, the manipulator component is used for grabbing and placing a workpiece, a base is arranged at the bottom of the workpiece and is used for supporting the workpiece, and the switch is arranged on the base. The bottom of the base is slidably connected with the guide rail, positioning plates are arranged at the front end and the rear end of the workpiece and comprise the first positioning plate and the second positioning plate, the workpiece is arranged on one side of the first positioning plate, and the air cylinder is arranged on the other side of the first positioning plate. The air cylinder is used for moving a workpiece to the second positioning plate through the first positioning plate, the workpiece is arranged on one side of the second positioning plate, the switch is arranged on the other side of the second positioning plate, the guide rails are detachably connected with the positioning plates, the tops of the longitudinal sections of the bases are in a V shape, and the guide rails are arranged on the guide rails. The pin shaft positioning device can be compatible with positioning of pin shaft parts with different lengths and thicknesses.

Description

Technical Field

[0001] The utility model belongs to the technical field of pin shaft positioning, and in particular relates to a pin shaft tightening positioning device. Background Art

[0002] In the field of modern mechanical processing, precise positioning and fixing technology is one of the key factors to improve processing accuracy and efficiency. Among traditional positioning devices, pin-tightening positioning technology is widely used in various mechanical equipment due to its simple structure and convenient operation, especially in scenarios where the processing object needs to be frequently changed or the processing position needs to be adjusted. The pin-tightening positioning device usually consists of a pair of positioning pins and corresponding holes. The pins are inserted into the preset holes and a certain amount of pressure is applied to achieve accurate positioning and fixing of the parts. This design guarantees the repeatability and stability of the processing to a certain extent, and is especially suitable for those occasions where the processing accuracy requirements are not extremely high but rapid adjustment is required.

[0003] However, as the manufacturing industry develops towards high precision and high efficiency, the limitations of traditional pin-tightening and positioning devices have gradually become apparent: Limited positioning accuracy: Traditional pin positioning relies on manual operation, and it is difficult to achieve micron-level positioning accuracy, which is a major shortcoming in the field of precision machining. Poor adaptability: For workpieces of different sizes and shapes, traditional pin-tightening and positioning often requires replacement or adjustment of locating pins, which is cumbersome and inefficient to operate, and it is difficult to quickly adapt to diverse processing needs. Insufficient stability: After long-term use, due to wear or uneven force, the pin and the hole are prone to loosening, affecting the processing accuracy and product quality consistency. High maintenance costs: Frequent replacement of locating pins or adjustment of positioning mechanisms increases equipment downtime and maintenance costs. Utility Model Content

[0004] In view of this, the utility model provides a pin shaft tightening and positioning device to solve the problem that the traditional pin shaft tightening and positioning device has poor adaptability and is compatible with the positioning of pin shaft parts of different lengths and thicknesses.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a pin shaft tightening and positioning device, which includes a manipulator assembly for grabbing and placing a workpiece, a cylinder, a positioning plate, a switch, and a guide rail. A base is provided at the bottom of the workpiece, and the base is used to support the workpiece. The bottom of the base is slidably connected to the guide rail. Positioning plates are provided at the front and rear ends of the workpiece. The positioning plates include a first positioning plate and a second positioning plate. The workpiece is provided on one side of the first positioning plate, and the cylinder is provided on the other side. The cylinder is used to move the workpiece to the second positioning plate through the first positioning plate. The workpiece is provided on one side of the second positioning plate, and the switch is provided on the other side. The guide rail is detachably connected to the positioning plate.

[0007] The technical effects of a pin shaft tightening and positioning device provided by the utility model are as follows: by integrating an aluminum profile guide rail under the V-shaped seat, not only the structural stability and load-bearing capacity of the entire device are significantly enhanced, but also the V-shaped seat can be smoothly and quickly moved and accurately positioned on the guide rail, thereby improving the processing flexibility and response speed. At the same time, the wear-resistant characteristics of the guide rail extend the service life of the equipment.

[0008] On the basis of the above technical solution, the pin-tightening and positioning device of the utility model can also be improved as follows:

[0009] There are multiple bases, and the top of the longitudinal section of the base is V-shaped.

[0010] The beneficial effects of adopting the above improvement scheme are: the ability of the V-shaped seat to fix at any position on the guide rail enables the equipment to quickly adapt to the processing needs of workpieces of different lengths and sizes, reducing preparation time and improving processing efficiency. In addition, this flexible positioning method ensures high-precision positioning of the workpiece, which is crucial to improving processing quality.

[0011] Furthermore, the cylinder is rigidly connected to the positioning plate via a piston rod.

[0012] Furthermore, a slider assembly is provided at the bottom of the base, a T-slot structure is correspondingly provided at the top of the guide rail, and the slider assembly is slidably connected to the guide rail via the T-slot structure.

[0013] Furthermore, the positioning plate is detachably connected to the guide rail via a bolt structure.

[0014] Furthermore, the diameter of the V-shaped opening at the top of the base is larger than the diameter of the workpiece and smaller than 3 / 2 of the diameter of the workpiece.

[0015] Furthermore, the distance between the switch and the workpiece position is equal to the product of a preset ratio of the workpiece thickness and an average thickness of the workpiece, and the preset ratio of the workpiece thickness is between 0.8 and 0.9.

[0016] Furthermore, the width of the guide rail is greater than the diameter of the V-shaped opening at the top of the base.

[0017] The V-shaped angle at the top of the base is α, and the calculation formula for angle α is:

[0018]

[0019] Among them, D max and D min are the maximum and minimum diameters of the workpiece respectively, and L is the bottom width of the base.

[0020] Furthermore, the full stroke of the cylinder is greater than 1.2 times the length of the workpiece.

[0021] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the ultra-long stroke cylinder design not only expands the size range of the processed workpiece and adapts to the wide range of needs from short to extra-long workpieces, but also eliminates the need for frequent equipment replacement or workstation adjustment, greatly improving the versatility and production efficiency of the processing equipment.

[0022] Furthermore, the guide rail is specifically an aluminum profile guide rail.

[0023] Compared with the prior art, the beneficial effects of the pin-tightening positioning device provided by the utility model are: through the rigid connection between the cylinder drive assembly and the positioning plate, combined with the flexible adjustment mechanism under the aluminum profile guide rail and the V-shaped seat, the disadvantages of the traditional pin-tightening positioning device are effectively solved, and the positioning accuracy, flexibility and stability are significantly improved. The specific beneficial effects are as follows:

[0024] Significantly improve positioning accuracy: By utilizing the precise control capability of the cylinder and combining it with a precise guide rail and slider system, micron-level precise positioning is achieved, meeting the needs of high-precision processing;

[0025] Enhanced adaptability and flexibility: The V-shaped seat can be quickly fixed at any position of the guide rail, and can adapt to workpieces of different lengths and diameters through simple adjustments, greatly improving production efficiency and flexibility, and reducing the time and cost of replacing positioning devices;

[0026] Improved stability and reliability: The rigid connection design ensures direct power transmission. At the same time, the fine-tuning function and quick locking mechanism ensure the stability of positioning, and the consistency of processing accuracy can be maintained even in long-term continuous operation;

[0027] Reduce maintenance costs: Reduce the frequency of manual adjustment and replacement of positioning parts, reduce the problem of precision loss due to wear, and effectively reduce equipment maintenance and operating costs in the long run;

[0028] Promote automation integration: The modular design of this system is easy to integrate with automated production lines, providing strong support for the realization of intelligent manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is an example diagram of a pin-tightening positioning device;

[0031] Figure 2 This is an example diagram of a positioning plate of a pin-tightening positioning device;

[0032] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0033] 1. Workpiece; 2. Base; 3. Cylinder; 4. Positioning plate; 41. First positioning plate; 42. Second positioning plate; 5. Switch; 6. Guide rail. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0035] like Figure 1 , Figure 2 As shown, it is a first embodiment of a pin shaft tightening and positioning device provided by the utility model. In this embodiment, it includes a manipulator assembly for grabbing and placing a workpiece 1, a cylinder 3, a positioning plate 4, a switch 5, and a guide rail 6. A base 2 is provided at the bottom of the workpiece 1, and the base 2 is used to support the workpiece 1. The bottom of the base 2 is slidably connected to the guide rail 6. Positioning plates 4 are provided at the front and rear ends of the workpiece 1. The positioning plates 4 include a first positioning plate 41 and a second positioning plate 42. The workpiece 1 is provided on one side of the first positioning plate 41, and the cylinder 3 is provided on the other side. The cylinder 3 is used to move the workpiece 1 to the second positioning plate 42 through the first positioning plate 41. The workpiece 1 is provided on one side of the second positioning plate 42, and the switch 5 is provided on the other side. The guide rail 6 is detachably connected to the positioning plate 4.

[0036] Among them, in the above technical solution, there are multiple bases 2, and the top of the longitudinal section of the base 2 is V-shaped.

[0037] Furthermore, in the above technical solution, the cylinder 3 is rigidly connected to the positioning plate 4 via a piston rod.

[0038] When using, the piston rod selection and design: The piston rod in the cylinder is made of high-strength alloy material with good bending and torsion resistance to withstand various loads during the working process. The surface of the piston rod is hardened to reduce wear and increase service life.

[0039] Rigid connector: The rigid connection between the piston rod end and the positioning plate uses precision machined connectors, such as flanges, pins or threaded connections, to ensure that there is no gap between the two and they are firmly fixed. The connector design should be easy to install and disassemble for easy maintenance and adjustment.

[0040] Positioning plate structure: The positioning plate is designed to be made of lightweight and high-strength materials, and is equipped with an interface for docking with the V-type seat positioning and locking mechanism to ensure the directness and stability of power transmission. The size and structure of the positioning plate must be precisely matched with the V-type seat and guide rail system so that under the drive of the cylinder, the positioning plate drives the V-type seat to move smoothly and accurately along the guide rail to the preset position.

[0041] Furthermore, in the above technical solution, a slider assembly is provided at the bottom of the base 2, and a T-slot structure is correspondingly provided at the top of the guide rail 6, and the slider assembly and the guide rail 6 are slidably connected via the T-slot structure.

[0042] Furthermore, in the above technical solution, the positioning plate 4 is detachably connected to the guide rail 6 via a bolt structure.

[0043] Furthermore, in the above technical solution, the diameter of the V-shaped opening at the top of the base 2 is larger than the diameter of the workpiece 1 and smaller than 3 / 2 of the diameter of the workpiece 1 .

[0044] Furthermore, in the above technical solution, the distance between the switch 5 and the workpiece 1 is equal to the product of a preset ratio of the thickness of the workpiece 1 and an average thickness of the workpiece 1 , and the preset ratio of the thickness of the workpiece 1 is between 0.8 and 0.9.

[0045] Furthermore, in the above technical solution, the width of the guide rail 6 is greater than the diameter of the V-shaped opening at the top of the base 2 .

[0046] Furthermore, in the above technical solution, the full stroke of the cylinder 3 is greater than 1.2 times the length of the workpiece 1 .

[0047] Furthermore, in the above technical solution, the guide rail 6 is specifically an aluminum profile guide rail.

[0048] Specifically, the principle of the utility model is:

[0049] Cylinder drive mechanism: Using high-performance cylinders as the power source, the linear motion of the piston rod is transmitted to the positioning plate through a precisely designed rigid connector, achieving efficient and precise transmission from the power source to the actuator. The stroke of the cylinder can be customized according to actual needs to ensure sufficient adjustment range;

[0050] Precision guide rail system: The aluminum profile guide rail, with its high rigidity and low friction coefficient, provides a stable and precise track for the movement of the V-type seat. The positioning holes on the guide rail cooperate with the positioning pins or quick-change clamping elements on the V-type seat slider, which not only supports rapid positioning, but also ensures the smoothness of movement and the accuracy of repeated positioning;

[0051] Fine-tuning and quick-locking technology: By introducing a fine-tuning screw or eccentric mechanism, the fine-tuning function after rough positioning is realized to ensure the extremely high accuracy of the final positioning. The quick-locking mechanism simplifies the positioning and locking steps, and enhances the convenience and safety of operation.

Claims

1. A pin-tightening positioning device, characterized in that: The invention comprises a manipulator assembly for grasping and placing a workpiece (1), a cylinder (3), a positioning plate (4), a switch (5), and a guide rail (6); a base (2) is arranged at the bottom of the workpiece (1); the base (2) is used to support the workpiece (1); the bottom of the base (2) is slidably connected to the guide rail (6); positioning plates (4) are arranged at the front and rear ends of the workpiece (1); the positioning plates (4) comprise a first positioning plate (41) and a second positioning plate (42); the workpiece (1) is arranged on one side of the first positioning plate (41) and the cylinder (3) is arranged on the other side; the cylinder (3) is used to move the workpiece (1) toward the second positioning plate (42) through the first positioning plate (41); the workpiece (1) is arranged on one side of the second positioning plate (42) and the switch (5) is arranged on the other side; the guide rail (6) is detachably connected to the positioning plate (4).

2. A pin-tightening and positioning device according to claim 1, characterized in that: There are multiple bases (2), and the top of the longitudinal section of the base (2) is V-shaped.

3. A pin-tightening and positioning device according to claim 2, characterized in that: The cylinder (3) is rigidly connected to the positioning plate (4) via a piston rod.

4. A pin-tightening and positioning device according to claim 3, characterized in that: A slider assembly is provided at the bottom of the base (2), a T-slot structure is correspondingly provided at the top of the guide rail (6), and the slider assembly and the guide rail (6) are slidably connected via the T-slot structure.

5. A pin-tightening and positioning device according to claim 4, characterized in that: The positioning plate (4) is detachably connected to the guide rail (6) via a bolt structure.

6. A pin-tightening and positioning device according to claim 5, characterized in that: The diameter of the V-shaped opening at the top of the base (2) is larger than the diameter of the workpiece (1) and smaller than 3 / 2 of the diameter of the workpiece (1).

7. A pin-tightening and positioning device according to claim 6, characterized in that: The distance between the switch (5) and the position of the workpiece (1) is equal to the product of a preset ratio of the thickness of the workpiece (1) and an average thickness of the workpiece (1), and the preset ratio of the thickness of the workpiece (1) is between 0.8 and 0.

9.

8. A pin-tightening and positioning device according to claim 7, characterized in that: The width of the guide rail (6) is greater than the diameter of the V-shaped opening at the top of the base (2).

9. A pin-tightening and positioning device according to claim 8, characterized in that: The full stroke of the cylinder (3) is greater than 1.2 times the length of the workpiece (1).

10. A pin-tightening and positioning device according to claim 9, characterized in that: The guide rail (6) is specifically an aluminum profile guide rail.

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