An automatic production line for producing a connecting rod

CN224658966UActive Publication Date: 2026-08-21SHANDONG ZHIBAN AUTOMATION EQUIP CO LTD
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Patent Information

Application Number
CN202522121212.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-05
Publication Date
2026-08-21
Estimated Expiration
2035-10-05

AI Technical Summary

Technical Problem

这一过程不仅耗时且劳动强度大,从而降低了生产效率,并且可能因人工更换夹具所引入的误差而影响加工精度

Benefits of technology

连杆定位夹紧机构通过T型滑槽、T型键和抵紧组件的设计,实现了对待加工连杆的精准定位和稳固夹紧。这种设计不仅提高了连杆在加工过程中的稳定性,还确保了加工精度,避免了因连杆晃动或位移而导致的加工误差,还能够更换抵紧块,使其适配不同尺寸的连杆。

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Abstract

The utility model discloses an automatic production line for connecting rod production belongs to connecting rod rough grinding technical field, and the side of fixed base is equipped with production line support, and the upper end both sides of this production line support are equipped with ball screw drive assembly, and the lateral wall of production line support is equipped with second drive assembly, and second drive assembly is connected with ball screw drive assembly through transmission belt, and the movable seat of two ball screw drive assemblies is equipped with sliding support, and the inner wall of sliding support is equipped with slide rail. The connecting rod positioning and clamping mechanism realizes accurate positioning and firm clamping of the connecting rod to be processed with the help of T type sliding slot, T type key and abutting assembly, improves the machining stability and precision, avoids the machining error, and the abutting block can be replaced to adapt to different size connecting rods. The connecting rod polishing mechanism realizes accurate polishing to the connecting rod through servo motor, transmission gear box and grinding head cooperation. Because the connecting rod has been accurately positioned and clamped, the grinding head can be in constant contact with the connecting rod surface when rotating and polishing, and ensures that polishing is uniform and consistent.
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Description

Technical Field

[0001] This utility model relates to the field of connecting rod rough grinding technology, and in particular to an automated production line for connecting rod production. Background Technology

[0002] As a critical component inside the engine, the connecting rod's manufacturing process demands stringent precision and quality. To meet these technical requirements, automated production line technology has been widely adopted in the connecting rod's production process. Within this system, the rough grinding equipment plays a crucial role. Its primary function is to perform preliminary grinding on the forged connecting rod to eliminate defects such as burrs and oxide scale generated during forging, laying a solid foundation for subsequent fine grinding processes.

[0003] In automated production lines for connecting rods, rough grinding equipment is typically equipped with pneumatic clamps for clamping operations. These clamps, powered by compressed air, are particularly suitable for high-speed production lines and applications requiring frequent clamp changes due to their ease of operation, low labor intensity, and environmental friendliness. However, in the rough grinding stage of connecting rods, the variety of connecting rod dimensions necessitates changing the pneumatic clamps according to different rod sizes. This process is not only time-consuming and labor-intensive, reducing production efficiency, but also potentially affecting machining accuracy due to errors introduced by manual clamp changes.

[0004] Furthermore, traditional clamp replacement methods pose safety hazards, such as unstable connections, air leaks, and signal interruptions. During production, if the clamps become loose or misaligned, it can not only affect product quality but also damage equipment or cause safety accidents. Utility Model Content

[0005] The main objective of this invention is to provide an automated production line for connecting rod production, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An automated production line for producing connecting rods includes a fixed base, an intelligent robot, a connector, a connecting seat, a first drive assembly, and a grinding head. The first drive assembly is mounted on the connector via the connecting seat, the connector is mounted on the fixed base via the intelligent robot, and the grinding head is connected to the output end of the first drive assembly to achieve rotation of the grinding head. A production line bracket is provided next to the fixed base. Ball screw transmission components are provided on both sides of the upper end of the production line bracket, and a second drive component is provided on the side wall of the production line bracket. The second drive component is connected to the ball screw transmission components through a transmission belt. A sliding bracket is installed on the movable seat of the two ball screw transmission components. A slide rail is provided on the inner wall of the sliding bracket. A transmission gearbox is connected between the two sets of slide rails. A servo motor is provided at the lower end of the transmission gearbox. The servo motor drives the output end inside the transmission gearbox to rotate. A grinding operation table is connected to the upper end of the output end. The grinding worktable has multiple T-shaped grooves, and T-shaped keys are embedded in the T-shaped grooves. A clamping component for clamping the connecting rod to be processed is connected to the T-shaped key. The two ends of the clamping component are connected to clamping blocks by fastening bolts. The clamping blocks are adapted to the connecting rod to be processed.

[0007] As an optional solution of this application, multiple T-shaped grooves are equidistantly distributed on the grinding operation table. The T-shaped grooves and T-shaped keys are compatible, and the cross-sections of the T-shaped grooves and T-shaped keys are both designed in an inverted "T" shape. As an optional solution of this application, the clamping assembly includes an adjusting bolt, a clamping strip, and a waist hole. The waist hole is located on the end face of the clamping strip. The adjusting bolt passes through the waist hole and is inserted into the T-key opening and connected by threads. The adjusting bolt is rotated to adjust the upper and lower limits of the clamping strip. As an optional solution of this application, the clamping block includes a square block, a round block and a buffer pad. The buffer pad is connected to the surface of the square block and the round block by an adhesive. A screw hole is opened at the upper end of the clamping block, and the fastening bolt passes through the clamping assembly and is connected to the square block and the round block. As an optional solution of this application, the grinding operation table is connected to multiple clamping components. The clamping components are adjusted along the T-shaped slide groove to adapt to the shape of the connecting rod to be processed, and the clamping of the connecting rod to be processed is achieved through the multiple clamping components. As an optional embodiment of this application, the transmission gearbox includes a helical gear, a transmission gear, and a transmission rod. The helical gear is connected to the transmission gear, the transmission rod is mounted on the helical gear and the transmission gear, the second drive assembly is connected to the transmission rod, and another transmission rod is connected to the grinding operation table by bolts.

[0008] Compared with the prior art, the present invention has the following beneficial effects: The connecting rod positioning and clamping mechanism achieves precise positioning and stable clamping of the connecting rod to be machined through the design of T-slots, T-keys, and clamping components. This design not only improves the stability of the connecting rod during machining but also ensures machining accuracy, avoids machining errors caused by connecting rod wobbling or displacement, and allows for the replacement of the clamping blocks to adapt to connecting rods of different sizes.

[0009] The connecting rod grinding mechanism achieves precise grinding of the connecting rod through the cooperation of a servo motor, transmission gearbox, and grinding head. Because the connecting rod is precisely positioned and clamped, the grinding head can maintain constant contact with the surface of the connecting rod during rotational grinding, thus ensuring the uniformity and consistency of grinding.

[0010] The synergistic effect of the linkage positioning and clamping mechanism and the grinding mechanism further enhances the automation level and processing efficiency of the equipment. Through the cooperation of the intelligent robotic arm, ball screw transmission assembly, and second drive assembly, the equipment can automatically move the linkage to the designated position and perform precise positioning and clamping. Subsequently, the grinding mechanism can begin operation without manual intervention, thereby improving processing efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a diagram showing the overall structure of the present invention; Figure 3 The diagram shows the sliding bracket, transmission gearbox, and grinding worktable of this utility model. Figure 4 The diagram shows the sliding bracket, transmission gearbox, grinding worktable, clamping assembly, and connecting rod to be processed according to this utility model. Figure 5 This is a diagram showing the grinding worktable, clamping assembly, and connecting rod to be processed according to this utility model.

[0012] In the diagram: 1. Fixed base; 2. Intelligent robotic arm; 3. Connector; 4. Connecting seat; 5. First drive assembly; 6. Grinding head; 7. Production line support; 8. Second drive assembly; 9. Ball screw transmission assembly; 10. Sliding bracket; 11. Transmission gearbox; 12. Servo motor; 14. Slide rail; 15. Grinding operating table; 16. T-slot; 17. T-key; 18. Clamping assembly; 19. Clamping block; 20. Fastening bolt; 21. Connecting rod to be processed. Detailed Implementation

[0013] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0014] like Figure 1 - Figure 5As shown, an automated production line for manufacturing connecting rods is characterized by high efficiency and precision. It includes a fixed base 1, an intelligent robotic arm 2, a connector 3, a connecting seat 4, a first drive assembly 5, and a grinding head 6. The first drive assembly 5 is mounted on the connector 3 via the connecting seat 4, and the connector 3 is mounted on the fixed base 1 via the intelligent robotic arm 2. The grinding head 6 is connected to the output end of the first drive assembly 5, thereby enabling the grinding head 6 to rotate and ensuring the machining accuracy of the connecting rod.

[0015] Next to the fixed base 1, a production line support 7 is provided, with ball screw drive assemblies 9 on both sides of its upper end. A second drive assembly 8 is provided on the side wall of the production line support 7, and the second drive assembly 8 is connected to the ball screw drive assembly 9 via a transmission belt. Sliding brackets 10 are mounted on the movable seats of the two ball screw drive assemblies 9, and slide rails 14 are provided on the inner wall of the sliding brackets 10. A transmission gearbox 11 is connected between the two sets of slide rails 14. A servo motor 12 is provided at the lower end of the transmission gearbox 11, driving the output end inside the transmission gearbox 11 to rotate. A grinding operation table 15 is connected to the upper end of the output end.

[0016] The grinding table 15 has multiple T-shaped grooves 16, into which T-shaped keys 17 are embedded. Each T-shaped key 17 is connected to a clamping assembly 18 for clamping the connecting rod 21 to be processed. Both ends of the clamping assembly 18 are connected to clamping blocks 19 via fastening bolts 20. The clamping blocks 19 are adapted to the connecting rod 21 to be processed, ensuring the stability and accuracy of the connecting rod during processing.

[0017] Multiple T-shaped grooves 16 are equidistantly distributed on the grinding table 15. The cross-sections of the T-shaped grooves 16 and the T-shaped keys 17 are both inverted "T" shaped. This design can ensure that the T-shaped keys 17 are stably positioned in the grooves and avoid displacement during processing.

[0018] The clamping assembly 18 includes an adjusting bolt, a clamping strip, and a slotted hole. The slotted hole is located on the end face of the clamping strip. The adjusting bolt passes through the slotted hole and is inserted into the opening of the T-key 17, and is connected by threads. By rotating the adjusting bolt, the upper and lower limits of the clamping strip can be adjusted to accommodate connecting rods 21 of different lengths and shapes to be processed.

[0019] The clamping block 19 includes a square block, a round block, and a buffer pad. The buffer pad is attached to the surface of the square block and the round block with adhesive to provide a certain cushioning effect and protect the connecting rod 21 to be processed from damage during clamping. The upper end of the clamping block 19 has a screw hole, and the fastening bolt 20 passes through the clamping assembly 18 and connects to the square block and the round block to ensure the stability of the clamping block 19 on the operating table. By using different clamping blocks 19, it can be adapted to connecting rods of different sizes.

[0020] Multiple clamping components 18 are connected to the grinding operation table 15. These clamping components 18 are adjusted in position along the T-shaped slide 16 to match the shape of the connecting rod 21 to be processed. The clamping of the connecting rod 21 to be processed is achieved through the multiple clamping components 18, ensuring the stability and accuracy of the processing.

[0021] The transmission gearbox 11 includes a helical gear, a transmission gear, and a transmission rod. The helical gear is connected to the transmission gear, and the transmission rod is mounted on the helical gear and the transmission gear. The second drive assembly 8 is connected to the transmission rod, and another transmission rod is connected to the grinding table 15 by bolts, thereby realizing the precise movement of the grinding table 15 and ensuring the accuracy and efficiency of the connecting rod machining.

[0022] Place the fixed base 1 in the designated position, ensuring it is stable and secure. Next, use the intelligent robotic arm 2 to install the connector 3 onto the fixed base 1, ensuring a firm connection. Then, connect the connector 4 to the connector 3, and then install the first drive assembly 5 onto the connector 4, completing the connection between the grinding head 6 and the output end of the first drive assembly 5, enabling the grinding head 6 to rotate.

[0023] Install the production line bracket 7 next to the fixed base 1, ensuring the bracket is stable. Install ball screw drive assemblies 9 on both sides of the upper end of the production line bracket 7. Next, install the second drive assembly 8 on the side wall of the production line bracket 7, and connect the second drive assembly 8 to the ball screw drive assembly 9 via a drive belt. Install sliding brackets 10 on the movable seats of the two ball screw drive assemblies 9, and set slide rails 14 on the inner wall of the sliding brackets 10. Install a transmission gearbox 11 between the slide rails 14, ensuring that the servo motor 12 is correctly connected to the output end of the transmission gearbox 11.

[0024] Multiple T-shaped grooves 16 are made at equal intervals on the grinding worktable 15, and T-shaped keys 17 are embedded in the grooves. Next, the clamping assembly 18 is connected to the T-shaped key 17, and the upper and lower limits of the clamping strip are adjusted by adjusting bolts to accommodate connecting rods 21 of different lengths and shapes to be processed. Clamping blocks 19 are connected to both ends of the clamping assembly 18 by fastening bolts 20 to ensure that the clamping blocks 19 are compatible with the connecting rods 21 to be processed.

[0025] After the equipment is assembled, the second drive assembly 8 is activated, which drives the ball screw transmission assembly 9 to move via the transmission belt, thereby causing the sliding bracket 10 to slide on the slide rail 14. The movement of the sliding bracket 10 drives the transmission gearbox 11 and the grinding operation table 15 to move to the designated position.

[0026] Place the connecting rod 21 to be processed on the grinding table 15, and adjust the adjusting bolts on the clamping assembly 18 to make the clamping strip in close contact with the connecting rod 21. Then, fix the clamping block 19 to the connecting rod 21 with the fastening bolts 20 to ensure the stability and accuracy of the connecting rod during the processing.

[0027] The servo motor 12 is started, driving the grinding table 15 to move precisely via the transmission gearbox 11. Simultaneously, the first drive assembly 5 is activated, causing the grinding head 6 to rotate and perform rough grinding on the connecting rod 21 to be processed. During the processing, the position and force of the clamping assembly 18 and the clamping block 19 are adjusted to ensure the processing accuracy and surface quality of the connecting rod. After the rough grinding is completed, the servo motor 12 and the first drive assembly 5 are turned off, and the grinding table 15 is moved to the next processing position via the sliding bracket 10 for subsequent processing.

[0028] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An automated production line for producing connecting rods, comprising a fixed base (1), an intelligent robotic arm (2), a connector (3), a connecting seat (4), a first drive assembly (5), and a grinding head (6), wherein the first drive assembly (5) is mounted on the connector (3) via the connecting seat (4), the connector (3) is mounted on the fixed base (1) via the intelligent robotic arm (2), and the grinding head (6) is connected to the output end of the first drive assembly (5) to achieve rotation of the grinding head (6), characterized in that: A production line bracket (7) is provided next to the fixed base (1). Ball screw transmission components (9) are provided on both sides of the upper end of the production line bracket (7). A second drive component (8) is provided on the side wall of the production line bracket (7). The second drive component (8) is connected to the ball screw transmission component (9) through a transmission belt. A sliding bracket (10) is installed on the movable seat of the two ball screw transmission components (9). A slide rail (14) is provided on the inner wall of the sliding bracket (10). A transmission gearbox (11) is connected between the two sets of slide rails (14). A servo motor (12) is provided at the lower end of the transmission gearbox (11). The output end of the transmission gearbox (11) is rotated by the servo motor (12). A grinding operation table (15) is connected to the upper end of the output end. The grinding worktable (15) has multiple T-shaped grooves (16) and T-shaped keys (17) are embedded in the T-shaped grooves (16). The T-shaped keys (17) are connected to a clamping assembly (18) for clamping the connecting rod (21) to be processed. The two ends of the clamping assembly (18) are connected to clamping blocks (19) by fastening bolts (20). The clamping blocks (19) are adapted to the connecting rod (21) to be processed.

2. An automated production line for connecting rod production according to claim 1, characterized in that: Multiple T-shaped grooves (16) are equidistantly distributed on the grinding worktable (15). The T-shaped grooves (16) and T-shaped keys (17) are compatible. The cross-sections of the T-shaped grooves (16) and T-shaped keys (17) are both designed in an inverted "T" shape.

3. An automated production line for connecting rod production according to claim 2, characterized in that: The clamping assembly (18) includes an adjusting bolt, a clamping strip, and a waist hole. The waist hole is located on the end face of the clamping strip. The adjusting bolt passes through the waist hole and is inserted into the opening of the T-key (17) and connected by threads. The adjusting bolt is rotated to adjust the upper and lower limits of the clamping strip.

4. An automated production line for connecting rod production according to claim 3, characterized in that: The clamping block (19) includes a square block, a round block and a buffer pad. The buffer pad is connected to the surface of the square block and the round block by an adhesive. The upper end of the clamping block (19) is provided with a screw hole. The fastening bolt (20) passes through the clamping assembly (18) and is connected to the square block and the round block.

5. An automated production line for connecting rod production according to claim 4, characterized in that: The grinding worktable (15) is connected to multiple clamping components (18). The clamping components (18) are adjusted along the T-shaped slide (16) to match the shape of the connecting rod (21) to be processed, and the clamping of the connecting rod (21) to be processed is achieved through the multiple clamping components (18).

6. An automated production line for connecting rod production according to claim 5, characterized in that: The transmission gearbox (11) includes a helical gear, a transmission gear and a transmission rod. The helical gear is connected to the transmission gear, and the transmission rod is installed on the helical gear and the transmission gear. The second drive assembly (8) is connected to the transmission rod, and another transmission rod is connected to the grinding operation table (15) by bolts.