A connecting rod manufacturing and drilling apparatus
By designing automated connecting rod machining and manufacturing drilling equipment, and utilizing cylinder push rods and water/air jet systems, the problem that connecting rod drilling equipment cannot process both the large and small ends simultaneously has been solved, achieving efficient and safe drilling, reducing costs and improving accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BOQI MASCH TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing drilling equipment cannot efficiently process both the big end and small end of a connecting rod simultaneously, and the connecting rod is prone to positional shift during processing, affecting drilling accuracy and quality.
A drilling device for connecting rod machining was designed. It uses a cylinder push rod to achieve automated machining of the connecting rod, and combines a water spray and air jet system for cooling and cleaning. A filter screen is used to recover the coolant, ensuring machining accuracy and efficiency.
It improves drilling accuracy and quality, reduces the need for manual operation, protects the processing environment and equipment lifespan, and reduces processing costs.
Smart Images

Figure CN224445393U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of connecting rod drilling technology, specifically to a connecting rod drilling equipment. Background Technology
[0002] Connecting rods connect the piston and crankshaft, transmitting the force on the piston to the crankshaft and converting the piston's reciprocating motion into the crankshaft's rotational motion. The connecting rod body consists of three parts: the part connected to the piston pin is called the small end; the part connected to the crankshaft is called the large end; and the rod connecting the small and large ends is called the connecting rod body. Connecting rods are rods that are hinged at both ends to the driving and driven components to transmit motion and force. For example, in reciprocating piston power machinery and compressors, connecting rods connect the piston and crankshaft. Connecting rods are mostly made of steel, with a circular or I-shaped cross-section for the main body. They have holes at both ends, containing bronze bushings or needle roller bearings for inserting pins to form a hinge. Press-fitting connecting rod bushings is best done using a press. The oil holes or grooves on the bushings must be aligned with the oil holes on the connecting rod to ensure lubrication. When assembling the piston and connecting rod, attention should be paid to their relative positions and orientations.
[0003] In the machining of connecting rods, drilling equipment is required to drill holes at both the large and small ends. Before drilling, the connecting rod needs to be fixed on the clamping mechanism of the drilling equipment. However, commonly used drilling equipment can only drill holes of the same diameter, making it impossible to use the same drilling equipment to drill both ends of the connecting rod. This necessitates changing the drilling equipment or drill bit, affecting drilling efficiency. Furthermore, the impact of the punching head on the stainless steel connecting rod under high speed and pressure can easily cause positional displacement during machining, affecting the accuracy of the drilled holes and the quality of the holes, thus significantly impacting the quality of the machined parts. In some cases, the part may even detach from the drilling position, resulting in the punching head drilling without drilling. Therefore, this application proposes a drilling equipment for connecting rod machining. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a drilling device for connecting rod processing and manufacturing, which solves the problems of low drilling efficiency and positional displacement of the connecting rod during processing, which greatly affects the quality of the parts.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a drilling device for connecting rod processing and manufacturing, comprising:
[0006] A processing rack is located on the top of the chassis. A fixing block is fixedly connected to the top of the chassis on the front side of the processing rack. A limit plate is installed on the top of the fixing block by fixing bolts, and the limit plate forms an angle with the processing rack for stacking connecting rods. The connecting rods are pushed to the bottom of the processing rack by cylinder push rod two, and processed by drilling equipment located on the top of the processing rack. The processed connecting rods are pushed out by cylinder push rod one.
[0007] A cavity is located inside the chassis, with a partition fixedly connected to its center. A filter screen is fixedly connected to the top of the partition. A brush rod is horizontally slidably connected to the right side of the chassis, with the top left side of the brush rod contacting the top of the filter screen. Filter holes are provided on the top of the chassis below the processing rack. A ramp is provided on the left side of the chassis, with holes on the surface of the ramp connected to the cavity through channels. A dust removal and cooling component is provided on the inner wall of the processing rack, and the dust removal and cooling component is connected to a water pump inside the cavity.
[0008] Preferably, the first cylinder push rod is fixedly connected to the top right side of the chassis, and a push rod is fixedly connected to the drive end; the second cylinder push rod is fixedly connected to the top front side of the chassis, and a top block is fixedly connected to the drive end; the top block is located at the bottom of the included angle and slides.
[0009] Preferably, a support column is fixedly connected to the top of the chassis on the left side of the processing frame. The top of the outer wall of the support column is connected to the drilling equipment through a connecting frame, which is bolted together.
[0010] Preferably, a positioning block is fixedly connected to the top of the chassis at the bottom rear side of the processing frame to limit the connecting rod, and a silicone pad is fixedly connected to the front outer wall of the positioning block.
[0011] Preferably, the dust removal and cooling assembly includes an air jet pipe and a water spray pipe located inside the processing rack. The air jet pipe is arranged in an inclined manner with a lower front and a higher rear. The outer right wall and the inner right wall of the processing rack are fixedly connected to adapters and are interconnected. The input ends of the air jet pipe and the water spray pipe are connected to the inner adapters. The two input ports of the outer adapters are respectively connected to a water guide pipe and an air guide pipe. The output end of the water pump is connected to a straight pipe, which is connected to the water guide pipe.
[0012] Preferably, the device also includes a conveyor located on the left side of the chassis. A motor is fixedly connected to the outer wall of the conveyor to move the belt inside the conveyor. A lever is fixedly connected to the right side of the belt, and a transmission rod is fixedly connected to the left end of the brush rod. The transmission rod is U-shaped and located at the moving path of the lever. The lever drives the transmission rod to move horizontally back and forth.
[0013] Preferably, a processing table is fixedly connected to the lower inner side of the processing rack, and a drill hole is provided in the middle of the processing table.
[0014] Preferably, the top of the chassis is provided with an observation window, and a rubber stopper is provided in the middle of the observation window for injecting coolant into the internal cavity of the chassis.
[0015] A method for manufacturing a connecting rod includes the following steps:
[0016] Step 1: Based on the required dimensions of the connecting rod to be processed, install the limiting plate on the fixing bolts on the top of the machine housing, and place the connecting rod to be processed between the limiting plate and the processing frame.
[0017] Step 2: Start the cylinder push rod 2 to push the top block to the lower side of the processing table. At this time, start the drilling equipment and drill the connecting rod at the drilling point through the drill bit at the bottom of the drilling equipment. The processed connecting rod is pushed to the slide by the top rod under the start of the cylinder push rod 1, and slides down the slide to the conveyor for transport to the next process.
[0018] Step 3: During the machining of the connecting rod in Step 2, coolant is sprayed onto the machining table through a water spray pipe and flows along the drill hole. After machining is completed, air is sprayed onto the machining table through an air jet pipe to clean the machining waste on the surface of the machining table.
[0019] Step 4: The coolant from Step 3 is pumped and flows through a straight pipe, a water guide pipe, and an adapter before entering the spray pipe. The sprayed coolant enters the interior of the chassis through the filter holes. Filtered by the filter screen, the coolant enters the right-side chamber separated by a partition for reuse. The waste residue at the bottom of the filter screen is removed by the horizontal movement of the brush rod.
[0020] Preferably, in step four, the brush rod is moved by a lever contacting a transmission rod during the movement of the conveyor, thereby achieving horizontal lateral movement of the brush rod.
[0021] This invention provides a drilling device for manufacturing connecting rods. It has the following advantages:
[0022] 1. This invention uses a cylinder push rod to realize the machining of the connecting rod, which saves a lot of manpower and avoids manual operation, while also ensuring operational safety. At the same time, it prevents the connecting rod from shifting position during drilling, improves the accuracy and quality of drilling, and increases processing efficiency.
[0023] 2. This invention achieves continuous processing by adding coolant to cool the drilling process and using air blowing to clean up waste residue at the processing site, while ensuring the service life of the processing environment and equipment. At the same time, the recycling of coolant reduces processing costs. Attached Figure Description
[0024] Figure 1 This is a perspective view of the present invention;
[0025] Figure 2 This is a schematic diagram of the top structure of the chassis in this invention;
[0026] Figure 3 This is a schematic diagram of the top block structure in this invention;
[0027] Figure 4 This is a schematic diagram of the internal structure of the processing rack in this invention;
[0028] Figure 5 This is a schematic diagram of the installation structure of the limiting plate in this invention;
[0029] Figure 6 This is a schematic diagram of the chassis structure in this invention;
[0030] Figure 7 This is a schematic diagram of the internal structure of the chassis in this invention.
[0031] The components are as follows: 1. Chassis; 2. Cylinder push rod one; 3. Top rod; 4. Conveyor; 5. Connecting frame; 6. Processing frame; 7. Top block; 8. Motor; 9. Cylinder push rod two; 10. Support column; 11. Drilling equipment; 12. Air guide pipe; 13. Water guide pipe; 14. Fixing block; 15. Fixing bolt; 16. Limiting plate; 17. Filter hole; 18. Rubber plug; 19. Slide; 20. Filter screen; 21. Adapter; 22. Processing table; 23. Positioning block; 24. Air jet pipe; 25. Water spray pipe; 26. Transmission rod; 27. Brush rod; 28. Partition plate; 29. Water pump; 30. Straight pipe; 31. Channel. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example
[0033] This invention provides a drilling device for connecting rod processing and manufacturing, comprising:
[0034] Please see the appendix Figure 1 Appendix Figure 3 and attached Figure 5The processing rack 6 is located on the top of the chassis 1. A fixing block 14 is fixedly connected to the front side of the processing rack 6 on the top of the chassis 1. A limiting plate 16 is installed on the top of the fixing block 14 by fixing bolts 15, and the limiting plate 16 forms an angle with the processing rack 6 for stacking connecting rods. The connecting rods are pushed to the bottom of the processing rack 6 by the cylinder push rod 9 and processed by the drilling device 11 located on the top of the processing rack 6. A processing table 22 is fixedly connected to the lower side of the interior of the processing rack 6. A drill hole is opened in the middle of the processing table 22. The processed connecting rods are pushed by the cylinder. Rod 1 2 is pushed out and slides down the ramp 19 onto the conveyor 4 for transport to the next process. Cylinder push rod 1 2 is fixedly connected to the top right side of the machine box 1, and the drive end is fixedly connected to the push rod 3. Cylinder push rod 2 9 is fixedly connected to the top front side of the machine box 1, and the drive end is fixedly connected to the top block 7. The top block 7 slides at the bottom of the included angle, saving a lot of manpower and avoiding manual operation, ensuring operational safety, and preventing the connecting rod from shifting position during drilling, improving drilling accuracy and quality, and increasing processing efficiency.
[0035] Please see the appendix Figure 4 - Appendix Figure 7 A cavity is located inside the chassis 1, with a partition 28 fixedly connected to its center. A filter screen 20 is fixedly connected to the top of the partition 28. A brush rod 27 is horizontally slidably connected to the right side of the chassis 1, with the top left side of the brush rod 27 contacting the top of the filter screen 20. A filter hole 17 is provided on the top of the chassis 1 below the processing rack 6. A ramp 19 is provided on the left side of the chassis 1, with holes on the surface of the ramp 19 communicating with the cavity through a channel 31. An air jet pipe 24 and a water spray pipe 25 are provided on the inner wall of the processing rack 6. The air jet pipe 24 is inclined with a lower front and higher rear. During the processing of the connecting rod, coolant is sprayed onto the processing table 22 through the water spray pipe 25 and flows along the drilled hole. After processing, coolant is sprayed away through the air jet pipe 25. Pipe 24 sprays air onto the processing table 22, thereby cleaning the processing waste on the surface of the processing table 22, ensuring the processing environment and the service life of the equipment. The outer right wall and the inner right wall of the processing rack 6 are fixedly connected to the adapter 21 and are interconnected. The input ends of the air spray pipe 24 and the water spray pipe 25 are connected to the inner adapter 21. The two input ports of the outer adapter 21 are respectively connected to the water guide pipe 13 and the air guide pipe 12. The output end of the water pump 29 is connected to the straight pipe 30, which is connected to the water guide pipe 13. The coolant is transported by the water pump 29 and enters the water spray pipe 25 after passing through the straight pipe 30, the water guide pipe 13 and the adapter 21 in sequence, realizing the recycling of coolant and reducing processing costs.
[0036] Please see the appendix Figure 2 Appendix Figure 4 and attached Figure 7A support column 10 is fixedly connected to the top of the machine housing 1 on the left side of the processing frame 6. The top of the outer wall of the support column 10 is connected to the drilling equipment 11 through a connecting frame 5, which is bolted together. A positioning block 23 is fixedly connected to the top of the machine housing 1 at the bottom rear side of the processing frame 6 to limit the connecting rod. A silicone pad is fixedly connected to the front outer wall of the positioning block 23. A conveyor 4 is also provided on the left side of the machine housing 1. A motor 8 is fixedly connected to the outer wall of the conveyor 4 to move the belt inside the conveyor 4. A lever is fixedly connected to the right side of the belt. A transmission rod 26 is fixedly connected to the left end of the brush rod 27. The transmission rod 26 is U-shaped and the transmission rod 2... Located at the moving path of the lever, the sprayed coolant enters the interior of the chassis 1 under the action of the filter hole 17. Filtered by the filter screen 20, the coolant enters the right-side chamber separated by the partition 28 for reuse. The waste residue at the bottom of the filter screen 20 is removed by the lever contacting the transmission rod 26 during the movement of the conveyor 4, thereby realizing the horizontal lateral movement of the rod 27 and improving the service life of the filter screen 20. At the same time, the recycling of coolant reduces the processing cost. The top of the chassis 1 is provided with an observation window, and a rubber stopper 18 is provided in the middle of the observation window for injecting coolant into the internal cavity of the chassis 1.
[0037] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A connecting rod manufacturing and drilling apparatus characterized by, include: The processing rack (6) is located on the top of the chassis (1). A fixing block (14) is fixedly connected to the top of the chassis (1) on the front side of the processing rack (6). A limiting plate (16) is installed on the top of the fixing block (14) by fixing bolts (15), and the limiting plate (16) forms an angle with the processing rack (6) for stacking connecting rods. The connecting rod is pushed to the bottom of the processing rack (6) by the second cylinder push rod (9), and processed by the drilling equipment (11) located on the top of the processing rack (6). The processed connecting rod is pushed out by the first cylinder push rod (2). A cavity is opened inside the chassis (1), with a partition (28) fixedly connected in the middle. A filter screen (20) is fixedly connected to the top of the partition (28). A brush rod (27) is horizontally slidably connected to the right side of the chassis (1), and the top left side of the brush rod (27) contacts the top of the filter screen (20). A filter hole (17) is opened on the top of the chassis (1) below the processing rack (6). A slope (19) is provided on the left side of the chassis (1). The hole opened on the surface of the slope (19) is connected to the cavity through a channel (31). A dust removal and cooling component is provided on the inner wall of the processing rack (6). The dust removal and cooling component is connected to a water pump (29) inside the cavity.
2. The drilling equipment for connecting rod processing and manufacturing according to claim 1, characterized in that, The cylinder push rod one (2) is fixedly connected to the top right side of the chassis (1), and the drive end is fixedly connected to the push rod (3). The cylinder push rod two (9) is fixedly connected to the top front side of the chassis (1), and the drive end is fixedly connected to the top block (7). The top block (7) is located at the bottom of the included angle and slides.
3. The drilling equipment for connecting rod processing and manufacturing according to claim 1, characterized in that, The top of the chassis (1) is fixedly connected to the left side of the processing frame (6) with a support column (10). The top of the outer wall of the support column (10) is connected to the drilling equipment (11) through a connecting frame (5). The connecting frame (5) is connected by bolts.
4. The drilling equipment for connecting rod processing and manufacturing according to claim 1, characterized in that, The top of the chassis (1) is fixedly connected to the bottom rear side of the processing frame (6) to limit the connecting rod. A silicone pad is fixedly connected to the front outer wall of the positioning block (23).
5. The drilling equipment for connecting rod processing and manufacturing according to claim 1, characterized in that, The dust removal and cooling assembly includes a jet pipe (24) and a water spray pipe (25) located inside the processing rack (6). The jet pipe (24) is arranged in an inclined manner with the front lower and the back higher. The outer right wall and the inner right wall of the processing rack (6) are fixedly connected to a connector (21) and are interconnected. The input ends of the jet pipe (24) and the water spray pipe (25) are connected to the inner connector (21). The two input ports of the outer connector (21) are respectively connected to a water guide pipe (13) and an air guide pipe (12). The output end of the water pump (29) is connected to a straight pipe (30), and the straight pipe (30) is connected to the water guide pipe (13).
6. The drilling equipment for connecting rod processing and manufacturing according to claim 1, characterized in that, It also includes a conveyor (4) located on the left side of the chassis (1). A motor (8) is fixedly connected to the outer wall of the conveyor (4) to enable the belt inside the conveyor (4) to move. A lever is fixedly connected to the right side of the belt. A transmission rod (26) is fixedly connected to the left end of the brush rod (27). The transmission rod (26) is U-shaped and is located at the moving path of the lever. The lever drives the transmission rod (26) to move horizontally back and forth.
7. The drilling equipment for connecting rod processing and manufacturing according to claim 6, characterized in that, A processing table (22) is fixedly connected to the lower inner side of the processing rack (6), and a drilling hole is provided in the middle of the processing table (22).
8. The drilling equipment for connecting rod processing and manufacturing according to claim 1, characterized in that, The top of the chassis (1) is provided with an observation window, and a rubber plug (18) is provided in the middle of the observation window for injecting coolant into the internal cavity of the chassis (1).