Multi-station rotary clamp for machining mechanical parts

Abstract

This utility model relates to the field of parts processing technology, specifically a multi-station rotary fixture for machining mechanical parts, comprising: a clamping mechanism, the clamping mechanism including a processing disk, a sub-frame provided on the inner wall of the processing disk, the inner wall of the processing disk being slidably connected to the outer side of the sub-frame, an inner rod provided at one end of the sub-frame, and one end of the sub-frame being fixedly connected to one end of the inner rod. When the motor is started, the connected lead screw rotates, and a pressure plate is connected to the outer side of the lead screw. The pressure plate then moves vertically downwards inside the processing disk. During this downward movement, because the pressure plate and the movable arm are connected by a connecting rod, the movable arm changes angle as the pressure plate moves downwards, increasing the tilt angle of the movable arm. Simultaneously, the side plate drives the inner rod and the sub-frame to move synchronously, thereby clamping and fixing the parts between the sub-frame and the main frame, further improving processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of parts processing technology, specifically a multi-station rotary fixture for processing mechanical parts. Background Technology

[0002] Mechanical parts can be simple individual components, such as a screw or a gear, or more complex assemblies composed of multiple parts, such as the crankshaft and connecting rod mechanism in an engine. Functionally, mechanical parts undertake various tasks, such as transmitting power, supporting structures, controlling motion, and making connections. They work together to enable mechanical equipment to operate according to predetermined requirements and achieve various complex functions.

[0003] In existing technologies, mechanical parts are used in different fields. During the production process, the parts need to be processed according to the set model. For high-precision mechanical parts, in the automotive manufacturing field, some structurally complex parts, such as engine cylinder blocks, are formed by casting. They are then precision milled and drilled by CNC machining centers to ensure that the dimensional accuracy and geometric tolerances of each part meet the model setting.

[0004] However, if the parts cannot be processed in a multi-station manner during the machining process, the machining process will not be continuous. Multi-station machining can ensure the relative positional accuracy of each machining part in a single clamping by using precise fixtures and positioning systems. In contrast, single-station machining requires repositioning when switching processes, and the positioning accuracy is easily affected by various factors such as human factors and equipment precision, making it difficult to guarantee the accurate positional relationship between different parts of the part. Therefore, we propose a multi-station rotary fixture for machining mechanical parts. Utility Model Content

[0005] One of the technical problems this application aims to solve is: to ensure that the position of multiple parts remains accurate throughout the machining process by simultaneously clamping multiple parts.

[0006] To solve the above-mentioned technical problems, this application provides a multi-station rotary fixture for machining mechanical parts, including: a clamping mechanism, a supporting mechanism provided on the bottom side of the clamping mechanism, the clamping mechanism including a machining disk, a sub-frame provided on the inner wall of the machining disk, the inner wall of the machining disk being slidably connected to the outer side of the sub-frame, an inner rod provided at one end of the sub-frame, one end of the sub-frame being fixedly connected to one end of the inner rod, a mother frame provided on the outer side of the inner rod, the outer side of the inner rod being slidably connected through the inner wall of the mother frame, the outer side of the mother frame being fixedly connected to the inner wall of the machining disk, a side plate provided at one end of the inner rod, one end of the inner rod being fixedly connected to one end of the side plate, a movable arm provided on the inner wall of the other end of the side plate, the inner wall of the other end of the side plate being rotatably connected to the bottom end of the movable arm.

[0007] In some embodiments, the support mechanism includes a support rod with a ball at its bottom end, the bottom end of the support rod being fixedly connected to the top side of the ball, a base plate being provided on the outer side of the ball, the outer side of the ball being rotatably in contact with the inner wall of the top side of the base plate, and the top end of the support rod being fixedly connected to the bottom side of the processing disc.

[0008] In some embodiments, a roller is provided on the inner wall of the top end of the movable arm, and the inner wall of the top end of the movable arm is rotatably connected to the center of the roller, and the outer side of the roller is rotatably in contact with the inner side of the processing disk.

[0009] In some embodiments, a spring is provided on the inner side of the inner rod, and one end of the spring is fixedly connected to the inner side of the inner rod, while the other end of the spring is fixedly connected to the inner side of the processing disc.

[0010] In some embodiments, a connecting rod is provided on one side of the movable arm, and the one side of the movable arm is rotatably connected to the bottom end of the connecting rod. A pressure plate is provided at the top end of the connecting rod, and the top end of the connecting rod is movably connected to the bottom side of the pressure plate. The outer side of the pressure plate is vertically slidably connected to the inner side of the processing plate.

[0011] In some embodiments, a lead screw is provided at the center of the pressure plate, and the center of the pressure plate is rotatably connected to the outer side of the lead screw. A motor is provided at the top of the lead screw, and the top of the lead screw is fixedly connected to the output end of the motor. One side of the motor is fixedly connected to one end of the top side of the processing plate.

[0012] In some embodiments, the bottom end of the lead screw is rotatably connected to the inner side of the processing disk, a drive disk is provided on the bottom side of the processing disk, the bottom side of the processing disk is fixedly connected to the top side of the drive disk, the bottom side of the drive disk is rotatably connected to the top side of the base plate, a second motor is provided on the bottom side of the base plate, and the bottom side of the base plate is fixedly connected to the top side of the second motor.

[0013] In some embodiments, the output end of the second motor is provided with a turntable, the output end of the second motor is fixedly connected to the bottom side of the turntable, a lever is provided at the top edge of the turntable, the top edge of the turntable is fixedly connected to the bottom end of the lever, and the outer side of the lever is in rotatable contact with the inner wall of the drive disk.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. When the motor is started, the connected lead screw rotates. The outside of the lead screw is connected to the pressure plate, which then moves vertically downward inside the processing plate. During the downward movement, since the pressure plate and the movable arm are connected by a connecting rod, the movable arm will change angle as the pressure plate moves downward, increasing the tilt angle of the movable arm. At the same time, the side plate will drive the inner rod and the sub-frame to move synchronously, thereby clamping and fixing the parts between the sub-frame and the mother frame, further improving processing efficiency.

[0016] 2. A drive plate is installed on the bottom side of the processing plate. The drive plate has multiple U-shaped grooves. A turntable is designed on the bottom side of the edge of the drive plate. A lever is designed on the edge of the turntable. Therefore, by starting the motor, the turntable starts to rotate. During the rotation, the lever rotates into the U-shaped groove, causing the drive plate to rotate in stages. In turn, the processing plate rotates in the same way, providing a precise positioning basis for processing operations at different stations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a top view of the clamping mechanism assembly of this utility model;

[0019] Figure 3 This is a side view of the clamping mechanism component of this utility model;

[0020] Figure 4 This is a side sectional view of the clamping mechanism component of this utility model;

[0021] Figure 5 This is a schematic diagram of the disassembled structure of the clamping mechanism components of this utility model;

[0022] Figure 6 This is a schematic diagram of some components of the clamping mechanism of this utility model;

[0023] In the diagram: 1. Clamping mechanism; 11. Processing plate; 12. Subframe; 13. Inner rod; 14. Mother frame; 15. Side plate; 16. Movable arm; 17. Roller; 18. Connecting rod; 19. Spring; 110. Pressure plate; 111. Lead screw; 112. Motor 1; 113. Drive plate; 114. Turntable; 115. Lever; 116. Base plate; 117. Motor 2;

[0024] 2. Support mechanism; 21. Support rod; 22. Sphere. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figures 1-6This utility model provides a technical solution: a multi-station rotary fixture for machining mechanical parts, comprising: a clamping mechanism 1, a support mechanism 2 provided on the bottom side of the clamping mechanism 1, the clamping mechanism 1 including a machining disk 11, a sub-frame 12 provided on the inner wall of the machining disk 11, the inner wall of the machining disk 11 being slidably connected to the outer side of the sub-frame 12, an inner rod 13 provided at one end of the sub-frame 12, one end of the sub-frame 12 being fixedly connected to one end of the inner rod 13, a mother frame 14 provided on the outer side of the inner rod 13, the outer side of the inner rod 13 being slidably connected to the inner wall of the mother frame 14, the outer side of the mother frame 14 being fixedly connected to the inner wall of the machining disk 11, and a side... Plate 15, one end of inner rod 13 is fixedly connected to one end of side plate 15, the other end of side plate 15 has a movable arm 16 on its inner wall, the other end of side plate 15 is rotatably connected to the bottom end of movable arm 16, the top end of movable arm 16 has a roller 17 on its inner wall, the top end of movable arm 16 is rotatably connected to the center of roller 17, the outer side of roller 17 is rotatably in contact with the inner side of processing disk 11, the inner side of inner rod 13 has a spring piece 19 on its inner side, the inner side of inner rod 13 is fixedly connected to one end of spring piece 19, the other end of spring piece 19 is fixedly connected to the inner side of processing disk 11, a connecting rod 18 is provided on one side of movable arm 16, the other side of movable arm 16 is connected to the inner side of processing disk 11. The bottom end of the connecting rod 18 is rotatably connected to the connecting rod 18. A pressure plate 110 is mounted on the top end of the connecting rod 18. The top end of the connecting rod 18 is movably connected to the bottom side of the pressure plate 110. The outer side of the pressure plate 110 is vertically slidably connected to the inner side of the processing disc 11. A lead screw 111 is mounted at the center of the pressure plate 110. The center of the pressure plate 110 is threadedly rotatably connected to the outer side of the lead screw 111. A motor 112 is mounted on the top end of the lead screw 111. The top end of the lead screw 111 is fixedly connected to the output end of the motor 112. One side of the motor 112 is fixedly connected to one top end of the processing disc 11. The bottom end of the lead screw 111 is rotatably connected to the inner side of the processing disc 11. A drive disk 113 is provided on the bottom side of the processing disk 11. The bottom side of the processing disk 11 is fixedly connected to the top side of the drive disk 113. The bottom side of the drive disk 113 is rotatably connected to the top side of the base plate 116. A second motor 117 is provided on the bottom side of the base plate 116. The bottom side of the base plate 116 is fixedly connected to the top side of the second motor 117. A turntable 114 is provided at the output end of the second motor 117. The output end of the second motor 117 is fixedly connected to the bottom side of the turntable 114. A lever 115 is provided at the top edge of the turntable 114. The bottom end of the lever 115 is fixedly connected to the top edge of the turntable 114. The outer side of the lever 115 is rotatably in contact with the inner wall of the drive disk 113.

[0027] In use, this type of multi-station rotary fixture for machining mechanical parts firstly features a machining disk 11 with eight machining seats. Each machining seat contains a sub-frame 12 and a mother frame 14. The components connected to the eight sub-frames 12 and the mother frame 14 are identical. Therefore, the mother frame 14 is fixed inside the machining seat. One end of each sub-frame 12 has an inner rod 13 that passes through the inner walls of both the mother frame 14 and the machining disk 11. To simultaneously clamp and fix the eight parts by placing them within the mother frame 14 and sub-frames 12, a side plate 15 is designed at one end of the inner rod 13. The inner wall of the other end of the side plate 15 is connected to a movable arm 16. Before being subjected to external force, the movable arm 16 is tilted. At this time, the motor 112 is started to make the connected lead screw 111 rotate. The outer side of the lead screw 111 is connected to the pressure plate 110. The pressure plate 110 then moves vertically downward inside the processing plate 11. During the downward movement, since the pressure plate 110 and the movable arm 16 are connected by the connecting rod 18, the movable arm 16 will change its angle when the pressure plate 110 moves downward, increasing the tilt angle of the movable arm 16. At the same time, the side plate 15 will drive the inner rod 13 and the sub-frame 12 to move synchronously, thereby clamping and fixing the parts between the sub-frame 12 and the mother frame 14, further improving the processing efficiency.

[0028] A drive disk 113 is installed on the bottom side of the processing disk 11. The drive disk 113 has multiple U-shaped grooves. A turntable 114 is designed on the bottom side of the edge of the drive disk 113. A lever 115 is designed on the edge of the turntable 114. Therefore, by starting the motor 117, the turntable 114 starts to rotate. During the rotation, the lever 115 rotates into the U-shaped groove, causing the drive disk 113 to rotate in stages. In turn, the processing disk 11 rotates in the same way. Each time the lever 115 enters the U-shaped groove, it ensures that the processing disk 11 rotates accurately to the predetermined angle, providing a precise positioning basis for processing operations at different stations and ensuring the consistency of position of each part during the processing.

[0029] Example 2: Please refer to Figures 1-5 The support mechanism 2 includes a support rod 21, a ball 22 is provided at the bottom end of the support rod 21, the bottom end of the support rod 21 is fixedly connected to the top side of the ball 22, a base plate 116 is provided on the outside of the ball 22, the outside of the ball 22 is rotatably in contact with the inner wall of the top side of the base plate 116, and the top end of the support rod 21 is fixedly connected to the bottom side of the processing plate 11.

[0030] A support rod 21 is designed on the bottom side of the processing disk 11, and a ball 22 is designed at the bottom end of the support rod 21. The outer side of the ball 22 slides in contact with the inner wall of the base plate 116. This reduces the contact area during the rotation of the processing disk 11, which greatly reduces the frictional resistance and energy loss. At the same time, as a key component connecting the processing disk 11 and the ball 22, the support rod can still stably support the weight of the processing disk 11 in a low-friction operating environment. Although the friction between the ball 22 and the inner wall of the base plate 116 is greatly reduced, the processing disk 11 will tend to sway due to inertia and other factors when rotating. At this time, the support rod 21 effectively restrains the processing disk 11 with its rigid structure, preventing it from displacing or swaying excessively in a low-friction state, thus ensuring the stability of the entire processing system structure.

[0031] Please see Figures 1-6 The parts are placed within the mother frame 14 and the daughter frame 12. To simultaneously clamp and fix eight parts, a side plate 15 is designed at one end of the inner rod 13, and a movable arm 16 is connected to the inner wall of the other end of the side plate 15. The movable arm 16 is tilted before being subjected to external force. At this time, the motor 112 is started, causing the connected lead screw 111 to rotate. The outer side of the lead screw 111 is connected to the pressure plate 110, which then moves vertically downward inside the processing plate 11. During the downward movement, since the pressure plate 110 and the movable arm 16 are connected by the connecting rod 18, the movable arm 16 will change angle when the pressure plate 110 moves downward, allowing the movable arm 16 to move. As the angle of the arm 16 increases, the side plate 15 will drive the inner rod 13 and the sub-frame 12 to move synchronously, thereby clamping and fixing the parts between the sub-frame 12 and the mother frame 14. A drive plate 113 is installed on the bottom side of the processing plate 11. The drive plate 113 has multiple U-shaped grooves. A turntable 114 is designed on the bottom side of the edge of the drive plate 113. A lever 115 is designed on the edge of the turntable 114. Therefore, by starting the motor 117, the turntable 114 starts to rotate. During the rotation, the lever 115 will rotate into the U-shaped groove, causing the drive plate 113 to rotate in stages. In turn, the processing plate 11 rotates in the same way.

[0032] A support rod 21 is designed on the bottom side of the processing disk 11, and a ball 22 is designed at the bottom end of the support rod 21. The outer side of the ball 22 slides in contact with the inner wall of the base plate 116. This reduces the contact area during the rotation of the processing disk 11, which greatly reduces the frictional resistance. As a key component connecting the processing disk 11 and the ball 22, the support rod 21 can still stably support the weight of the processing disk 11 in a low-friction operating environment.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A multi-station rotary fixture for machining of mechanical parts, comprising, characterized by: A clamping mechanism (1) is provided with a support mechanism (2) on its bottom side. The clamping mechanism (1) includes a processing disk (11). A sub-frame (12) is provided on the inner wall of the processing disk (11). The inner wall of the processing disk (11) is slidably connected to the outer side of the sub-frame (12). An inner rod (13) is provided at one end of the sub-frame (12). One end of the sub-frame (12) is fixedly connected to one end of the inner rod (13). A mother frame is provided on the outer side of the inner rod (13). (14) The outer side of the inner rod (13) is slidably connected to the inner wall of the mother frame (14), and the outer side of the mother frame (14) is fixedly connected to the inner wall of the processing plate (11). One end of the inner rod (13) is provided with a side plate (15), and one end of the inner rod (13) is fixedly connected to one end of the side plate (15). The inner wall of the other end of the side plate (15) is provided with a movable arm (16), and the inner wall of the other end of the side plate (15) is rotatably connected to the bottom end of the movable arm (16).

2. The multi-station rotary clamp for machining of mechanical parts according to claim 1, characterized in that: The support mechanism (2) includes a support rod (21), a ball (22) is provided at the bottom end of the support rod (21), the bottom end of the support rod (21) is fixedly connected to the top side of the ball (22), a base plate (116) is provided on the outside of the ball (22), the outside of the ball (22) is rotatably in contact with the inner wall of the top side of the base plate (116), and the top end of the support rod (21) is fixedly connected to the bottom side of the processing disk (11).

3. The multi-station rotary clamp for machining of mechanical parts according to claim 2, characterized in that: The top inner wall of the movable arm (16) is provided with a roller (17), and the top inner wall of the movable arm (16) is rotatably connected to the center of the roller (17). The outer side of the roller (17) is rotatably in contact with the inner side of the processing disk (11).

4. The multi-station rotary clamp for machining of mechanical parts according to claim 3, characterized in that: The inner rod (13) is provided with a spring piece (19) on its inner side. The inner side of the inner rod (13) is fixedly connected to one end of the spring piece (19), and the other end of the spring piece (19) is fixedly connected to the inner side of the processing disc (11).

5. The multi-station rotary clamp for machining of mechanical parts according to claim 4, characterized in that: A connecting rod (18) is provided on one side of the movable arm (16), and one side of the movable arm (16) is rotatably connected to the bottom end of the connecting rod (18). A pressure plate (110) is provided at the top end of the connecting rod (18), and the top end of the connecting rod (18) is movably connected to the bottom side of the pressure plate (110). The outer side of the pressure plate (110) is vertically slidably connected to the inner side of the processing plate (11).

6. The multi-station rotary clamp for machining of mechanical parts according to claim 5, characterized in that: A lead screw (111) is provided at the center of the pressure plate (110). The center of the pressure plate (110) is rotatably connected to the outer side of the lead screw (111). A motor (112) is provided at the top of the lead screw (111). The top of the lead screw (111) is fixedly connected to the output end of the motor (112). One side of the motor (112) is fixedly connected to one end of the top side of the processing plate (11).

7. The multi-station rotary clamp for machining of mechanical parts according to claim 6, characterized in that: The bottom end of the lead screw (111) is rotatably connected to the inner side of the processing disk (11). A drive disk (113) is provided on the bottom side of the processing disk (11). The bottom side of the processing disk (11) is fixedly connected to the top side of the drive disk (113). The bottom side of the drive disk (113) is rotatably connected to the top side of the base plate (116). A second motor (117) is provided on the bottom side of the base plate (116). The bottom side of the base plate (116) is fixedly connected to the top side of the second motor (117).

8. The multi-station rotary clamp for machining of mechanical parts according to claim 7, characterized in that: The output end of the second motor (117) is provided with a turntable (114), the output end of the second motor (117) is fixedly connected to the bottom side of the turntable (114), a lever (115) is provided at the top edge of the turntable (114), the top edge of the turntable (114) is fixedly connected to the bottom end of the lever (115), and the outer side of the lever (115) is in rotatable contact with the inner wall of the drive disk (113).

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