Novel pneumatic tool swing arm
By rationally designing and selecting materials for the pneumatic tool swing arm, the problem of high casting and machining costs has been solved, resulting in reduced weight, increased strength and wear resistance, and improved production efficiency and equipment lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-14
AI Technical Summary
The existing pneumatic tool swing arms have excessively high casting and machining costs, resulting in low production efficiency and quality.
By employing a rational geometric design and high-strength aluminum alloy materials, and by creating weight-reducing grooves and bayonet blocks on the main body and side plates, combined with high-strength bolt connections, the structure is optimized to reduce weight and cost while improving strength and wear resistance.
It reduces casting and machining costs, improves production efficiency and product quality, and extends equipment lifespan.
Smart Images

Figure CN224116110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic tool technology, and in particular to a novel pneumatic tool swing arm. Background Technology
[0002] Pneumatic tools are mechanical devices powered by compressed air. They drive a pneumatic motor to output kinetic energy and are widely used in industries such as manufacturing, construction, and automobile manufacturing. Their main components include a power output section, a work mode conversion section, an air intake and exhaust system, a control system, and a tool housing. They are characterized by high efficiency, portability, and safety. Of course, the movement of pneumatic tools relies heavily on the crucial pneumatic tool arm.
[0003] A pneumatic tool swing arm is a mechanical device driven by air pressure, typically composed of a swing cylinder or a double cylinder (power multiplier cylinder), capable of extending, retracting, and swinging in the horizontal direction. This type of swing arm has a simple structure, rapid and reliable operation, and is widely used in automated production lines, assembly lines, and other fields, featuring energy saving, environmental friendliness, and ease of operation.
[0004] Although existing pneumatic tool arms can meet most work requirements, the casting and machining costs of existing arms are too high, which cannot improve production efficiency and product quality. Therefore, a new type of pneumatic tool arm is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a novel pneumatic tool swing arm, which aims to improve the problems of high casting and processing costs and low production quality and efficiency of existing swing arms.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A novel pneumatic tool swing arm includes a main body, on which two symmetrical side plates are fixedly connected. The main body has a triangular structure, and the side plates have a rectangular structure. An upper connecting hole is provided on the upper part of the side plates, and a lower connecting hole is provided on the lower part of the side plates. Both the upper connecting hole and the lower connecting hole have a circular structure and are used to connect to components for operation input.
[0008] As a further description of the above technical solution:
[0009] The main body serves as the base for the parts, providing support and connection.
[0010] As a further description of the above technical solution:
[0011] The main body has a weight-reducing groove inside, which is used to save material in the middle of the main body;
[0012] As a further description of the above technical solution:
[0013] The bottom of the main body is provided with a weight-reducing groove three, which is used to save material at the bottom of the main body;
[0014] As a further description of the above technical solution:
[0015] The side panel is flat and 8mm thick;
[0016] As a further description of the above technical solution:
[0017] The side plate has a second weight-reducing groove in the middle, and the second weight-reducing groove has a square structure.
[0018] As a further description of the above technical solution:
[0019] A bayonet block is fixedly connected to the bottom of the side plate. The bayonet block is triangular in shape and has a pointed front end.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, by making reasonable geometric design of the swing arm, the structure and function are combined as much as possible, which realizes simplification and multi-functionality. While ensuring use, the size and weight of the product are reduced to the greatest extent, the cost of casting and processing is reduced, the production efficiency is improved, and the quality of the product is guaranteed.
[0022] 2. In this utility model, by selecting high-strength aluminum alloy as the material, the strength and wear resistance of the swing arm are improved, ensuring the normal operation of the equipment and extending its service life. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of a novel pneumatic tool swing arm proposed in this utility model;
[0024] Figure 2 This is a cross-sectional schematic diagram of the connection hole of a novel pneumatic tool swing arm proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the side plate of a novel pneumatic tool swing arm proposed in this utility model.
[0026] Legend:
[0027] 1. Main body; 2. Weight reduction groove one; 3. Side plate; 4. Upper connecting hole; 5. Weight reduction groove two; 6. Lower connecting hole; 7. Block opening; 8. Weight reduction groove three. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Reference Figures 1-3 This utility model provides one embodiment: a novel pneumatic tool swing arm, comprising a main body 1, with two symmetrical side plates 3 fixedly connected to the outside of the main body 1. The main body 1 has a triangular structure, and the side plates 3 have a rectangular structure. To further improve the performance of the swing arm, the main body 1 and the side plates 3 are connected by high-strength bolts to ensure the firmness between the components. Simultaneously, a reinforcing rib structure is designed at the connection between the main body 1 and the side plates 3 to improve the overall load-bearing capacity. The upper part of the side plate 3 has an upper connecting hole 4, and the lower part of the side plate 3 has a lower connecting hole 6. Both the upper connecting hole 4 and the lower connecting hole 6 are circular structures. Both the upper connecting hole 4 and the lower connecting hole 6 are used to connect the operation input components. The design of the upper connecting hole 4 and the lower connecting hole 6 ensures the reliable connection between the swing arm and the external equipment, and facilitates subsequent maintenance and replacement. The main body 1 serves as the base of the parts and plays a supporting and connecting role. The main body 1 has a weight reduction groove 1 2 inside, which is used to save material in the middle of the main body 1, thereby reducing weight and improving the lightweight performance of the overall structure. The main body 1 has a weight reduction groove 3 8 at the bottom, which is used to save material at the bottom of the main body 1, while further optimizing the bottom structure, reducing unnecessary material use, and ensuring the balance and stability of the swing arm during movement.
[0030] Reference Figures 1-3 Side plate 3 is flat and 8mm thick. Precise calculations ensure it meets strength requirements while minimizing weight, resulting in high strength and rigidity. A weight-reduction groove 5, square in shape, further reduces the weight of side plate 3 without compromising its load-bearing capacity. A triangular, pointed-front locking block 7 is fixedly connected to the bottom of side plate 3 for quick positioning and installation. This design improves installation efficiency and enhances the stability of the connection between the swing arm and the base or other components. Furthermore, the pointed-front design effectively prevents interference during assembly, ensuring smooth installation of the swing arm. The swing arm is made of high-strength aluminum alloy, minimizing product size and weight while maintaining usability. This reduces casting and machining costs, improves production efficiency, and ensures product quality. The high-strength aluminum alloy also boasts high strength and wear resistance, extending the equipment's lifespan while ensuring normal operation.
[0031] Working Principle: First, the weight-reducing groove 2 in the middle of the main body 1 of the swing arm saves most of the material used in the middle section of the main body 1. Simultaneously, a weight-reducing groove 8 is also created at the bottom, further reducing the weight of the swing arm and saving material costs. Furthermore, the main body 1, as the base of the component, not only provides support and connection but also significantly improves overall strength and stability through optimized structural design. For example, the weight-reducing grooves 2 and 8 of the main body 1 not only reduce weight but also improve the bending strength and load-bearing capacity of the swing arm through a reasonable mechanical distribution, thereby extending its service life.
[0032] Secondly, the main body 1 has two symmetrical side plates 3 on its exterior. The upper connecting hole 4 and lower connecting hole 6 on the side plates 3 of the swing arm can be used to connect the operation input components. When the swing arm is to be used, the upper connecting hole 4 and lower connecting hole 6 can be tightly connected to the connecting components to achieve stable operation of the swing arm. At the same time, the locking block 7 at the bottom of the side plate 3 achieves pressure control by engaging with other components and driving the movement of other components. This design not only improves the stability of the connection, but also effectively avoids the swing arm from loosening or falling off due to external impact through the locking mechanism of the locking block 7. In addition, the design of the side plate 3 also takes mechanical balance into consideration. Through reasonable geometry and material selection, the overall rigidity and durability of the swing arm are further enhanced.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel pneumatic tool swing arm, comprising a main body (1), characterized in that: The main body (1) is externally fixedly connected to two symmetrical side plates (3). The main body (1) has a triangular structure, and the side plates (3) have a rectangular structure. The upper part of the side plates (3) is provided with an upper connecting hole (4), and the lower part of the side plates (3) is provided with a lower connecting hole (6). Both the upper connecting hole (4) and the lower connecting hole (6) are circular structures. Both the upper connecting hole (4) and the lower connecting hole (6) are used to connect components for operation input.
2. The novel pneumatic tool swing arm according to claim 1, characterized in that: The main body (1) serves as the base of the parts, providing support and connection.
3. The novel pneumatic tool swing arm according to claim 1, characterized in that: The main body (1) has a weight-reducing groove (2) inside, which is used to save material in the middle of the main body (1).
4. A novel pneumatic tool swing arm according to claim 1, characterized in that: The bottom of the main body (1) is provided with a weight-reducing groove (8) to save material at the bottom of the main body (1).
5. A novel pneumatic tool swing arm according to claim 1, characterized in that: The side plate (3) is flat and has a thickness of 8mm.
6. A novel pneumatic tool swing arm according to claim 1, characterized in that: The side plate (3) has a weight-reducing groove (5) in the middle, and the weight-reducing groove (5) has a square structure.
7. A novel pneumatic tool swing arm according to claim 1, characterized in that: The bottom of the side plate (3) is fixedly connected to a bayonet block (7), which is triangular and has a pointed front end.