Multi-angle small connecting rod machining clamp

Abstract

The utility model relates to the field of automobile parts processing especially relates to a multi -angle small connecting rod processing clamp, including installation board, rotating plate, worm, worm wheel and clamping assembly etc. The utility model discloses a position of sliding frame is adjusted through rotating ordinary screw rod, through the small connecting rod cover fixed on the positioning column, through rotating bidirectional screw rod, makes the clamping frame mobile to small connecting rod clamping fixed, again through the worm angle of small connecting rod is adjusted and processes, thereby can adjust connecting rod angle and process to the clamping fixed of different specifications and length's connecting rod, need not to change clamp or tool, reduce cost, improve processing efficiency and precision, use nimble.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing, and in particular to a multi-angle small connecting rod processing fixture. Background Technology

[0002] As a key component in mechanical transmission systems, the connecting rod is widely used in many fields such as automobile manufacturing, aerospace, construction machinery, and power tools. Its function is to realize the power conversion and motion control of mechanical equipment through connection and motion transmission with other components such as pistons and crankshafts. In automobile engines, the precision of the connecting rod directly affects the engine's combustion efficiency, power output, and running stability.

[0003] A fixture for multi-process integrated machining of connecting rods, disclosed in CN114131376A, includes a drive mechanism, a mounting base, and three mounting mechanisms. Each mounting mechanism includes two clamping components, a engaging post, and a limiting post. The device drives a supporting seat to slide on the mounting base towards the clamping components via a lifting component, thereby pushing the connecting rod to slide and clamping it between the clamping components and the supporting seat. After fixing the connecting rod, machining is performed. However, the fixed positions of the supporting seat and limiting post limiters mean that this device can only fix connecting rods of specific specifications, making it difficult to adapt to clamping and machining connecting rods of different specifications and lengths. It has poor flexibility, requires changing different fixtures during use, is cumbersome, increases machining costs, and affects machining efficiency.

[0004] Therefore, it is necessary to design a clamping fixture that can hold and fix connecting rods of different specifications and lengths while adjusting the angle of the connecting rods for processing, without changing the fixtures or tools, thereby reducing costs, improving processing efficiency and accuracy, and using a flexible multi-angle small connecting rod processing fixture. Utility Model Content

[0005] To overcome the shortcomings of current devices where the holding seat and limiting post are fixed in position, can only fix connecting rods of specific specifications, are difficult to adapt to the clamping and processing of connecting rods of different specifications and lengths, have poor flexibility, require the replacement of different fixtures during use, are cumbersome to operate, increase processing costs, and affect processing efficiency, this utility model provides a flexible multi-angle small connecting rod processing fixture that can clamp and fix connecting rods of different specifications and lengths while adjusting the angle of the connecting rod for processing, without the need to change fixtures or tools, reducing costs, improving processing efficiency and accuracy.

[0006] The technical solution is: a multi-angle small connecting rod machining fixture, including a mounting plate, a rotating plate, a worm gear, a worm wheel, a clamping assembly, and a fixing assembly. The rotating plate is rotatably connected to the middle of the mounting plate, the worm gear is rotatably connected to the front of the mounting plate, and the worm wheel is connected to the lower part of the rotating plate. The worm wheel and the worm gear mesh with each other. The rotating plate is provided with a clamping assembly for clamping the small connecting rod, and the upper left side of the rotating plate is provided with a fixing assembly for fixing the small connecting rod.

[0007] In a preferred embodiment of this utility model, the mounting plate has two mounting holes, one in front and one in back, on both the left and right sides.

[0008] In a preferred embodiment of this utility model, a knob is also included, with the knob connected to the right side of the worm gear.

[0009] In a preferred embodiment of this utility model, the clamping assembly includes a fixed plate, a guide rod, a common lead screw, a sliding frame, a bidirectional lead screw, and a clamping frame. Fixed plates are connected to both the left and right sides of the rotating plate. A guide rod is connected between the front parts of the fixed plates, and a common lead screw is rotatably connected between the rear parts of the fixed plates. A sliding frame is threaded onto the common lead screw, and the sliding frame is slidably connected to the guide rod. A bidirectional lead screw is rotatably connected to the right side of the sliding frame. Clamping frames are threaded onto both the front and rear parts of the bidirectional lead screw, and the clamping frames are slidably connected to the sliding frames.

[0010] In a preferred embodiment of the present invention, the fixing component includes a positioning post, a pressing block and a spring. The positioning post is connected to the upper left side of the rotating plate, and multiple pressing blocks are slidably connected to the upper part of the positioning post. Each pressing block is connected to the positioning post by two springs, one above and one below.

[0011] In a preferred embodiment of this utility model, the top pressure blocks are evenly distributed along the positioning posts.

[0012] Beneficial effects: This utility model adjusts the position of the sliding frame by rotating a common lead screw, fixes it on the positioning post by a small connecting rod, moves the clamping frame to clamp and fix the small connecting rod by rotating a bidirectional lead screw, and then adjusts the angle of the small connecting rod by rotating a worm gear before processing. Thus, it can clamp and fix connecting rods of different specifications and lengths while adjusting the angle of the connecting rod for processing, without the need to change fixtures or tools, reducing costs, improving processing efficiency and accuracy, and making it flexible to use. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the sliding frame and bidirectional lead screw components of this utility model.

[0015] Figure 3This is an exploded cross-sectional view of the positioning column and top pressure block of this utility model.

[0016] Figure 4 This is an exploded cross-sectional view of the three-dimensional structure of the knob and worm gear components of this utility model.

[0017] The components in the attached diagram are labeled as follows: 1. Mounting plate, 2. Mounting hole, 3. Rotating plate, 4. Worm gear, 5. Knob, 6. Worm wheel, 7. Fixing plate, 8. Guide rod, 9. Ordinary lead screw, 10. Sliding frame, 11. Two-way lead screw, 12. Clamping frame, 13. Positioning pin, 14. Top pressure block, 15. Spring. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0019] A multi-angle small connecting rod machining fixture, such as Figures 1-4 As shown, it includes a mounting plate 1, a rotating plate 3, a worm gear 4, a knob 5, a worm wheel 6, a clamping assembly, and a fixing assembly. The mounting plate 1 has two mounting holes 2 on both the left and right sides for easy fixing. The rotating plate 3 is rotatably connected to the middle of the mounting plate 1, and the worm gear 4 is rotatably connected to the front of the mounting plate 1. The knob 5 is connected to the right side of the worm gear 4 for easy gripping and rotating. The worm wheel 6 is connected to the lower part of the rotating plate 3, and the worm wheel 6 meshes with the worm gear 4. The rotating plate 3 is provided with a clamping assembly for clamping the small connecting rod, and the upper left side of the rotating plate 3 is provided with a fixing assembly for fixing the small connecting rod.

[0020] like Figure 1 and Figure 2 As shown, the clamping assembly includes a fixed plate 7, a guide rod 8, a common lead screw 9, a sliding frame 10, a bidirectional lead screw 11, and a clamping frame 12. The left and right sides of the rotating plate 3 are connected to the fixed plate 7. The front parts of the fixed plate 7 are connected to the guide rod 8. The rear parts of the fixed plate 7 are rotatably connected to the common lead screw 9. The common lead screw 9 is threadedly connected to the sliding frame 10. The sliding frame 10 is slidably connected to the guide rod 8. The right side of the sliding frame 10 is rotatably connected to the bidirectional lead screw 11. The front and rear parts of the bidirectional lead screw 11 are threadedly connected to the clamping frame 12. The clamping frame 12 is slidably connected to the sliding frame 10.

[0021] like Figure 3 As shown, the fixing assembly includes a positioning post 13, a top pressing block 14, and a spring 15. The positioning post 13 is connected to the upper left side of the rotating plate 3. Three top pressing blocks 14 are slidably connected to the upper part of the positioning post 13. The top pressing blocks 14 are evenly distributed along the positioning post 13. Each top pressing block 14 is connected to the positioning post 13 by two upper and two lower springs 15.

[0022] When machining small connecting rods used in automobiles, this device can be used. The mounting plate 1 contacts the machining or support equipment, and the mounting plate 1 is fixed to the equipment by screws passing through the mounting holes 2. Then, according to the specifications and length of the small connecting rod, the ordinary lead screw 9 is rotated, causing the sliding frame 10 to move along the guide rod 8 under the action of the thread. After moving to the appropriate position, the small connecting rod is placed on the positioning post 13, pressing the top pressure block 14 to move. The spring 15 is compressed, thus fixing one end of the small connecting rod, so that the other end of the small connecting rod is placed on the sliding frame 10. Next, the double-acting lead screw 11 is rotated, causing the clamping frame 12 to move simultaneously under the action of the thread, clamping and fixing the other end of the small connecting rod. The top pressure blocks 14 are evenly distributed along the positioning post 13. After fixing, according to the machining requirements, the worm gear 4 is rotated by the knob 5. The worm gear 4 and the worm wheel... The meshing motion of the 6 components causes the rotating plate 3 to rotate, which in turn drives the fixed plate 7, guide rod 8, ordinary lead screw 9, sliding frame 10, double lead screw 11, clamping frame 12, and positioning post 13 to rotate. This causes the small connecting rod to rotate. After adjusting to a suitable angle, the small connecting rod is processed by the processing equipment. This allows for the clamping and fixing of connecting rods of different specifications and lengths while adjusting the angle of the connecting rod for processing. There is no need to change the fixture or tools, reducing costs, improving processing efficiency and accuracy, and making it flexible to use. After processing, by rotating the double lead screw 11 in the opposite direction, the clamping frame 12 moves in the opposite direction and disengages from the small connecting rod under the action of the thread. Then, the small connecting rod is removed from the positioning post 13 and disengaged from the top pressure block 14. The spring 15 rebounds, and the top pressure block 14 moves back to its original position. Then, the above operation is repeated to install a new small connecting rod for clamping and fixing before processing.

[0023] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A multi-angle small connecting rod machining fixture, characterized in that: It includes a mounting plate (1), a rotating plate (3), a worm (4), a worm wheel (6), a clamping assembly, and a fixing assembly. The mounting plate (1) is rotatably connected to the middle of the rotating plate (3), the worm (4) is rotatably connected to the front of the mounting plate (1), the worm wheel (6) is connected to the lower part of the rotating plate (3), the worm wheel (6) meshes with the worm (4), the rotating plate (3) is provided with a clamping assembly for clamping the small connecting rod, and the upper left side of the rotating plate (3) is provided with a fixing assembly for fixing the small connecting rod.

2. The multi-angle small connecting rod machining fixture as described in claim 1, characterized in that: The mounting plate (1) has two mounting holes (2) on the left and right sides. The mounting holes (2) are used to fix the mounting plate (1). The mounting holes (2) and the mounting plate (1) are fixed by bolts or screws.

3. A multi-angle small link machining fixture according to claim 1, characterized in that: It also includes a knob (5), which is connected to the right side of the worm (4). The outer surface of the knob (5) has anti-slip texture, and the knob (5) is round in shape.

4. A multi-angle small link machining fixture according to claim 1, characterized in that: The clamping assembly includes a fixed plate (7), a guide rod (8), a common lead screw (9), a sliding frame (10), a bidirectional lead screw (11), and a clamping frame (12). The left and right sides of the rotating plate (3) are connected to the fixed plate (7). The front of the fixed plate (7) is connected to the guide rod (8). The rear of the fixed plate (7) is rotatably connected to the common lead screw (9). The common lead screw (9) is threadedly connected to the sliding frame (10). The sliding frame (10) is slidably connected to the guide rod (8). The right side of the sliding frame (10) is rotatably connected to the bidirectional lead screw (11). The front and rear sides of the bidirectional lead screw (11) are threadedly connected to the clamping frame (12). The clamping frame (12) is slidably connected to the sliding frame (10).

5. The multi-angle small connecting rod machining fixture as described in claim 1, characterized in that: The fixing assembly includes a positioning post (13), a top pressing block (14), and a spring (15). The positioning post (13) is connected to the upper left side of the rotating plate (3). Multiple top pressing blocks (14) are slidably connected to the upper part of the positioning post (13). Each top pressing block (14) is connected to the positioning post (13) by two upper and lower springs (15).

6. The multi-angle small connecting rod machining fixture as described in claim 5, characterized in that: The top pressure block (14) is evenly distributed around the circumference along the positioning post (13). The shape of the top pressure block (14) corresponds to the groove on the small connecting rod. The top pressure block (14) and the groove of the small connecting rod are engaged.

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