Milling machine for machining automobile connecting rod
By designing an automatic feeding and chip collection system on the milling machine, the problem of manual feeding and chip cleaning required by existing milling machines has been solved, achieving highly efficient automation of connecting rod machining, improving production efficiency and worker comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-03
AI Technical Summary
The existing milling machine requires manual feeding when machining connecting rods, which results in low efficiency and the generated debris needs to be cleaned manually, increasing the workload of the workers.
A milling machine with a diversion tilting groove and a conveyor belt was designed to realize automatic feeding and automatic chip discharge. The conveyor belt is driven by a motor to perform cyclic feeding of the connecting rod, and the tilting groove is used to automatically collect the chips.
It improves the efficiency of connecting rod machining, reduces manual operation, reduces the workload of subsequent debris removal, and improves machining results.
Smart Images

Figure CN224073416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive connecting rod processing technology, and in particular to a milling machine for automotive connecting rod processing. Background Technology
[0002] Connecting rods are important components in automobile engines. In addition to withstanding the pressure generated by the combustion chamber gases, they also have to withstand longitudinal and lateral inertial forces. Therefore, the working conditions of automobile connecting rods require the automobile to have sufficient rigidity and toughness. When machining automobile connecting rods, milling machines are used to mill them.
[0003] In existing milling machines, connecting rods are mostly machined manually, with each rod fed individually. The next connecting rod can only be fed after it has been machined and removed from the machine table, resulting in reduced machining efficiency. Furthermore, the chips generated during machining often fall directly onto the milling machine surface, requiring manual cleaning after machining, increasing the workload for operators. Therefore, those skilled in the art have proposed a milling machine for machining automotive connecting rods to address the problems mentioned in the background. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing milling machines, which mostly require manual feeding when machining connecting rods. The next connecting rod can only be fed after it has been finished and removed from the machining table, thus reducing machining efficiency. Furthermore, the chips generated during machining often fall directly onto the milling machine surface, requiring manual cleaning after machining, increasing the workload for operators. Therefore, this invention proposes a milling machine for machining automotive connecting rods.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a milling machine for machining automotive connecting rods, comprising a milling machine, wherein a flow-guiding inclined groove is provided in the middle of the front and rear sides of the upper surface of the milling machine, a support rod is fixed at the left and right ends of the top of the flow-guiding inclined groove, a positioning baffle is fixed at the top of one end of the support rod, a first motor is fixed at the front side of one end of the positioning baffle, a drive gear is fixed at the output end of the first motor, a conveyor belt is meshed on the outer side of the drive gear, a plurality of connecting rod support plates are equidistantly distributed at the upper and lower ends of the conveyor belt, a positioning lifting block is fixedly connected to the middle of the left and right ends of the connecting rod support plate, a second positioning column is fixed on the upper surface of one end of the positioning lifting block, a first positioning column is fixed on the lower surface of one end of the positioning lifting block, the second positioning column is fixedly connected to the connecting shaft point of the conveyor belt, and the connecting rod support plate is fixedly connected to the conveyor belt through the positioning lifting block;
[0006] Through the above technical solution, during automatic feeding, the connecting rod to be processed is placed in the middle above the connecting rod support plate located on the front side of the conveyor belt. When the connecting rod support plate is subjected to pressure, the pressure generated is applied to the positioning block. When the positioning block is subjected to heavy pressure, the gravity is distributed to the positioning baffle through the first positioning post and the second positioning post located at one end. During feeding, the first motor drives the drive gear fixedly connected to the output end to rotate. The rotating drive gear drives the outer meshing conveyor belt to rotate a specified distance to the rear of the milling machine under the restriction of the positioning baffle. When the connecting rod support plate is pushed by the conveyor belt... As the connecting rod moves towards the milling cutter, the connecting rod support plate located on the front side below the conveyor belt will rotate steadily along the inner wall of the positioning baffle under the push of the conveyor belt to the top of the positioning baffle. When the milling cutter mills the connecting rod placed on the connecting rod support plate located in the middle of the positioning baffle, the operator can place another connecting rod to be processed on the connecting rod support plate located on the front side above the positioning baffle during the processing of the first connecting rod. This facilitates the quick pushing of the second connecting rod to one end of the milling cutter after the first connecting rod is processed, thereby facilitating the cyclic feeding of the connecting rod to be processed and improving the efficiency of connecting rod processing.
[0007] Furthermore, adjusting grooves are provided on the inner walls of both the front and rear sides of the connecting rod support plate. An adjusting slider is slidably connected to the middle of the adjusting groove. A movable clamping plate is fixed to one side of the adjusting slider. An adjusting screw passes through the middle of the adjusting slider. A toothed block knob is fixed to one end of the adjusting screw. The left and right ends of the adjusting screw are rotatably connected to the left and right ends of the inner side of the adjusting groove, respectively. A fixing clamping plate is fixed to one end of the front side of the adjusting groove. When the toothed block knob moves to the bottom of the positioning baffle under the drive of the conveyor belt, it can engage with the upper surface of the toothed plate.
[0008] With the above technical solution, when the worker places the connecting rod in the middle of the connecting rod support plate, the toothed block knob is rotated. The toothed block knob drives the adjusting screw fixed in the middle of one end to rotate. The rotating adjusting screw will drive the adjusting slider connected on the outside to slide along the adjusting groove to one end, thereby driving the movable clamp plate fixed on one side to slide to one end. This pushes the connecting rod in contact with the movable clamp plate to slide to one end and lock it onto the fixed clamp plate. At this time, the movable clamp plate and the fixed clamp plate cooperate with each other to clamp and fix the connecting rod, which makes it easy to quickly clamp and fix the connecting rod to be processed.
[0009] When the connecting rod clamped on the connecting rod support plate is finished and moved to the rear side below the positioning baffle by the conveyor belt, the toothed block knob at one end of the connecting rod support plate will engage with the upper surface of the toothed plate, and the toothed plate will clamp and fix the connecting rod support plate. At this time, the scattered chips inside the connecting rod support plate will fall into the drainage inclined groove opened in the middle of the rear side of the milling machine. After chip removal, when the connecting rod support plate is moved to the front side of the upper surface of the toothed plate by the conveyor belt, the toothed block knob at one end of the connecting rod support plate will slide and engage with the toothed block fixed on the front side of the upper surface of the toothed plate. The toothed block pushes the toothed block knob of the meshing connection to rotate in the opposite direction. The rotating toothed block knob will drive the adjusting screw fixed in the middle of one end to rotate in the opposite direction, thereby driving the adjusting slider on the outside to slide along the adjusting groove to the other end. This will drive the movable clamp fixed on one side of the adjusting slider to slide to the other end of the adjusting groove and separate from the connecting rod. At this time, the connecting rod, which has lost its clamping force, will fall into the drainage inclined groove opened in the middle of the front side of the milling machine. This facilitates the automatic discharge of the clamped connecting rod and the automatic chip removal of the chips generated during processing, which helps to reduce the subsequent workload and improve the processing effect of the connecting rod.
[0010] Furthermore, a connecting rod collection box is fixed in the middle of the front side of the milling machine, and a debris collection box is fixed in the middle of the rear side of the milling machine;
[0011] With the above technical solution, when the debris falls into the corresponding inclined channel, it will slide along the inclined angle of the channel into the debris collection box. When the processed connecting rod falls into the corresponding inclined channel, it will slide along the inclined angle of the channel into the connecting rod collection box, which facilitates the collection and storage of debris and connecting rod.
[0012] Furthermore, a first guide ring groove is formed in the middle of one end surface of the positioning baffle, and a second guide ring groove is formed on the outer side of one end surface of the positioning baffle. The second positioning post is slidably connected to the first guide ring groove, and the first positioning post is slidably connected to the second guide ring groove.
[0013] With the above technical solution, when the conveyor belt moves to one side by driving the connecting rod support plate through the positioning block, the first positioning block and the second positioning block fixed at one end of the positioning block will move to one side along the second guide ring groove and the first guide ring groove opened on the inner wall of one end of the positioning baffle, thereby improving the stability of the connecting rod support plate pushing and sliding to one side.
[0014] Furthermore, a toothed plate is provided below the positioning baffle, and the toothed plate is located at the middle of one end of the support rod and is fixedly connected to the middle of one end of the support rod.
[0015] The above technical solution uses a support rod to install and position the toothed plate and the positioning baffle.
[0016] Furthermore, a guide rail is fixed in the middle of the upper surface of the milling machine, and the conveyor belt is located in the middle above the guide rail;
[0017] The above technical solution guides and limits the trajectory of the milling cutter's left and right sliding by the guide rail.
[0018] This utility model has the following beneficial effects: it facilitates the cyclic feeding of the connecting rod to be processed, improves the efficiency of connecting rod processing, facilitates the automatic discharge of the clamped connecting rod, and facilitates the automatic discharge of the chips generated during processing, which helps to reduce the subsequent workload and improve the effect of connecting rod processing.
[0019] 1. In this utility model, during automatic feeding, the connecting rod to be processed is placed in the middle of the connecting rod support plate located on the front side of the conveyor belt. When the connecting rod support plate is subjected to pressure, the pressure generated is applied to the positioning block. When the positioning block is subjected to heavy pressure, the gravity is distributed to the positioning baffle through the first positioning post and the second positioning post located at one end. During feeding, the first motor drives the drive gear fixedly connected to the output end to rotate. The rotating drive gear drives the outer meshing conveyor belt to rotate a specified distance to the rear of the milling machine under the restriction of the positioning baffle. When the connecting rod support plate is pushed by the conveyor belt... As the connecting rod moves towards the milling cutter, the connecting rod support plate located on the front side below the conveyor belt will rotate steadily along the inner wall of the positioning baffle under the push of the conveyor belt to the top of the positioning baffle. When the milling cutter mills the connecting rod placed on the connecting rod support plate located in the middle of the positioning baffle, the operator can place another connecting rod to be processed on the connecting rod support plate located on the front side above the positioning baffle during the processing of the first connecting rod. This facilitates the quick pushing of the second connecting rod to one end of the milling cutter after the first connecting rod is processed, thereby facilitating the cyclic feeding of the connecting rod to be processed and improving the efficiency of connecting rod processing.
[0020] 2. In this utility model, during material discharge, when the connecting rod clamped on the connecting rod support plate is finished and moved to the rear side below the positioning baffle under the push of the conveyor belt, the toothed block knob at one end of the connecting rod support plate will engage with the upper surface of the toothed plate, and the toothed plate will clamp and fix the connecting rod support plate. At this time, the debris scattered inside the connecting rod support plate will fall into the drainage inclined groove opened in the middle of the rear side of the milling machine. After the chip discharge is completed, when the connecting rod support plate is moved to the front side of the upper surface of the toothed plate by the conveyor belt, the toothed block knob at one end of the connecting rod support plate will slide and engage with the toothed block fixed on the front side of the upper surface of the toothed plate. The toothed blocks on the toothed plate push the meshing toothed block knob to rotate in the opposite direction. The rotating toothed block knob will drive the adjusting screw fixed in the middle of one end to rotate in the opposite direction, thereby driving the adjusting slider on the outside to slide along the adjusting groove to the other end. This will drive the movable clamp fixed on one side of the adjusting slider to slide to the other end of the adjusting groove and separate from the connecting rod. At this time, the connecting rod, which has lost its clamping force, will fall into the drainage inclined groove opened in the middle of the front side of the milling machine. This facilitates the automatic discharge of the clamped connecting rod and the automatic chip removal of the chips generated during processing, which helps to reduce the subsequent workload and improve the processing effect of the connecting rod. Attached Figure Description
[0021] Figure 1 This is a front-view perspective three-dimensional structural diagram of a milling machine for machining automotive connecting rods proposed in this utility model;
[0022] Figure 2 This utility model proposes a milling machine for machining automotive connecting rods. Figure 1 Enlarged structural diagram of section A in the middle;
[0023] Figure 3 This is a three-dimensional structural diagram of the connection between the transmission chain and the connecting rod bracket plate of a milling machine for machining automotive connecting rods, as proposed in this utility model.
[0024] Figure 4 This is a three-dimensional structural diagram of the connection between the positioning baffle and the connecting rod bracket plate of a milling machine for machining automotive connecting rods, as proposed in this utility model.
[0025] Legend:
[0026] 1. Milling machine; 2. Support rod; 3. Guide rail; 4. Drainage inclined groove; 5. Connecting rod collection box; 6. Conveyor chain; 7. Positioning baffle; 8. Tooth plate; 9. Debris collection box; 10. First motor; 11. Connecting rod support plate; 12. Fixed clamping plate; 13. Adjusting slide; 14. Adjusting slider; 15. Movable clamping plate; 16. Adjusting screw; 17. Tooth block knob; 18. First guide ring groove; 19. Second guide ring groove; 20. Positioning lifting block; 21. First positioning column block; 22. Second positioning column block. Detailed Implementation
[0027] 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.
[0028] Reference Figure 1-4 This utility model provides an embodiment of a milling machine for machining automotive connecting rods, comprising a milling machine 1. A flow-guiding inclined groove 4 is provided in the middle of both the front and rear sides of the upper surface of the milling machine 1. A support rod 2 is fixed to the left and right ends of the top of the flow-guiding inclined groove 4. A positioning baffle 7 is fixed to the top of one end of the support rod 2. A first motor 10 is fixed to the front side of one end of the positioning baffle 7. A drive gear is fixed to the output end of the first motor 10. A transmission chain 6 meshes with the outer side of the drive gear. Multiple connecting rod support plates 11 are equidistantly distributed at the upper and lower ends of the transmission chain 6. A positioning lifting block 20 is fixedly connected to the middle of the left and right ends of each connecting rod support plate 11. A second positioning column block 22 is fixed to the upper surface of one end of the positioning lifting block 20, and a first positioning column block 21 is fixed to the lower surface of one end of the positioning lifting block 20. The second positioning block 22 is fixedly connected to the link shaft of the conveyor belt 6. The connecting rod support plate 11 is fixedly connected to the conveyor belt 6 through the positioning lifting block 20. A connecting rod collection box 5 is fixed in the middle of the front side of the milling machine 1, and a debris collection box 9 is fixed in the middle of the rear side of the milling machine 1. A first guide ring groove 18 is opened in the middle of one end surface of the positioning baffle 7, and a second guide ring groove 19 is opened in the outer side of one end surface of the positioning baffle 7. The second positioning block 22 is slidably connected to the first guide ring groove 18, and the first positioning block 21 is slidably connected to the second guide ring groove 19. A toothed plate 8 is provided below the positioning baffle 7. The toothed plate 8 is located in the middle of one end of the support rod 2 and is fixedly connected to the middle of one end of the support rod 2. A guide rail 3 is fixed in the middle of the upper surface of the milling machine 1, and the conveyor belt 6 is located in the middle above the guide rail 3.
[0029] Preferably, the inner walls of the front and rear sides of the connecting rod support plate 11 are provided with adjusting grooves 13. The middle of the adjusting groove 13 is slidably connected to the adjusting slider 14. A movable clamping plate 15 is fixed on one side of the adjusting slider 14. An adjusting screw 16 passes through the middle of the adjusting slider 14. A toothed block knob 17 is fixed at one end of the adjusting screw 16. The left and right ends of the adjusting screw 16 are rotatably connected to the left and right ends of the inner side of the adjusting groove 13, respectively. A fixing clamping plate 12 is fixed at one end of the front side of the adjusting groove 13. When the toothed block knob 17 moves to the bottom of the positioning baffle 7 under the drive of the conveyor belt 6, it can engage with the upper surface of the toothed plate 8.
[0030] Working principle: In use, the connecting rod to be processed is placed in the middle of the connecting rod support plate 11 located on the front side of the conveyor belt 6. Then, the toothed block knob 17 is rotated, which drives the adjusting screw 16 fixed at one end to rotate. The rotating adjusting screw 16 drives the adjusting slider 14 connected to the outside to slide along the adjusting groove 13 to one end, thereby driving the movable clamping plate 15 fixed on one side to slide to one end. This pushes the connecting rod in contact with the movable clamping plate 15 to slide to one end and lock it onto the fixed clamping plate 12. At this time, the movable clamping plate 15 and the fixed clamping plate 12 cooperate to clamp and fix the connecting rod. During feeding, the first motor 10 drives the output. The drive gear, fixed at one end, rotates. This rotation drives the outer meshing conveyor belt 6 to rotate towards the rear of the milling machine 1 under the constraint of the positioning baffle 7. This causes the connecting rod support plate 11, located above the conveyor belt 6, to move rearward. As the connecting rod support plate 11 slides rearward, the first positioning block 21 and the second positioning block 22, fixed at one end of the positioning lifting block 20 on the connecting rod support plate 11, move towards one end along the second guide ring groove 19 and the first guide ring groove 18 opened on the inner wall of one end of the positioning baffle 7. This improves the stability of the sliding of the connecting rod support plate 11. When the connecting rod support plate 11 moves to one end of the milling cutter under the push of the conveyor belt 6... During the milling process, the connecting rod is milled by a milling cutter. When the connecting rod clamped on the connecting rod support plate 11 is finished and moved to the rear side below the positioning baffle 7 under the push of the conveyor belt 6, the toothed block knob 17 at one end of the connecting rod support plate 11 will lock onto the upper surface of the toothed plate 8, and the toothed plate 8 will clamp and fix the connecting rod support plate 11. At this time, the debris scattered inside the connecting rod support plate 11 will fall into the drainage inclined groove 4 opened in the middle of the rear side of the milling machine 1, and slide along the inclined angle of the drainage inclined groove 4 into the debris collection box 9. After the chip removal is completed, when the connecting rod support plate 11 is moved to the front side of the upper surface of the toothed plate 8 by the conveyor belt 6, the toothed block knob 17 at one end of the connecting rod support plate 11 will lock onto the upper surface of the toothed plate 8. Button 17 will slide and engage with the tooth block fixed on the front side of the upper surface of the tooth plate 8. The tooth block on the tooth plate 8 pushes the tooth block knob 17 to rotate in the opposite direction. The tooth block knob 17 rotates in the opposite direction, which will drive the adjusting screw 16 fixed in the middle of one end to rotate in the opposite direction, thereby driving the adjusting slider 14 on the outside to slide along the adjusting groove 13 to the other end. This will drive the movable clamping plate 15 fixed on one side of the adjusting slider 14 to slide to the other end of the adjusting groove 13 and separate from the connecting rod. At this time, the connecting rod, which loses the clamping force, will fall into the diversion inclined groove 4 opened in the middle of the front side of the milling machine 1 and slide along the inclined angle of the diversion inclined groove 4 into the connecting rod collection box 5.
[0031] 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 milling machine for machining of automobile connecting rods, comprising a milling machine (1), characterized in that: The milling machine (1) upper surface front and back both sides of the middle part are provided with a drainage inclined groove (4), the left and right ends of the top of the drainage inclined groove (4) are fixed with a support rod (2), one end of the top of the support rod (2) is fixed with a positioning baffle (7), the front side of one end of the positioning baffle (7) is fixed with a first motor (10), the output end of the first motor (10) is fixed with a drive gear, the outer side of the drive gear is engaged with a transmission chain belt (6), a plurality of connecting rod hoop plates (11) are equidistantly distributed on the upper and lower ends of the transmission chain belt (6), the middle part of the left and right ends of the connecting rod hoop plate (11) is fixedly connected with a positioning hanging block (20), the upper surface of one end of the positioning hanging block (20) is fixed with a second positioning column block (22), the lower surface of one end of the positioning hanging block (20) is fixed with a first positioning column block (21), the second positioning column block (22) and the link shaft point of the transmission chain belt (6) are fixedly connected, and the connecting rod hoop plate (11) is fixedly connected with the transmission chain belt (6) through the positioning hanging block (20).
2. The milling machine for machining of automobile connecting rod according to claim 1, characterized in that: The inner wall of the left and right sides of the connecting rod hoop plate (11) is provided with an adjusting sliding groove (13), the middle part of the adjusting sliding groove (13) is slidably connected with an adjusting sliding block (14), one side of the adjusting sliding block (14) is fixed with a movable clamping plate (15), the middle part of the adjusting sliding block (14) penetrates an adjusting screw (16), one end of the adjusting screw (16) is fixed with a gear block knob (17), the left and right ends of the adjusting screw (16) are rotatably connected with the left and right ends of the inner side of the adjusting sliding groove (13), and one end of the front side of the adjusting sliding groove (13) is fixed with a fixed clamping plate (12). When the gear block knob (17) is driven by the transmission chain belt (6) to move below the positioning baffle (7), it can be meshingly connected with the upper surface of the toothed plate (8).
3. The milling machine for machining of automobile connecting rod as claimed in claim 1 wherein: The middle part of the front side of the milling machine (1) is fixedly connected with a connecting rod collecting box (5), and the middle part of the rear side of the milling machine (1) is fixedly connected with a scrap collecting box (9).
4. The milling machine for machining of automobile connecting rod according to claim 1, characterized in that: The middle part of the surface of one end of the positioning baffle (7) is provided with a first guide ring groove (18), the outer side of the surface of one end of the positioning baffle (7) is provided with a second guide ring groove (19), the second positioning column block (22) is slidably connected with the first guide ring groove (18), and the first positioning column block (21) is slidably connected with the second guide ring groove (19).
5. The milling machine for machining of automobile connecting rod as claimed in claim 1 wherein: The lower side of the positioning baffle (7) is provided with a toothed plate (8), the toothed plate (8) is located in the middle part of one end of the support rod (2) and is fixedly connected with the middle part of one end of the support rod (2).
6. The milling machine for machining of automobile connecting rod as claimed in claim 1 wherein: The middle part of the upper surface of the milling machine (1) is fixedly connected with a guide rail (3), and the transmission chain belt (6) is located in the middle part above the guide rail (3).