A diesel engine connecting rod finishing device

Abstract

The present application relates to a kind of diesel engine connecting rod finishing device, and it relates to connecting rod processing technical field.The base plate is installed with overhead plate on the upper end, the base plate is provided with corresponding blanking groove on one side of overhead plate, the overhead plate is installed with bearing plate on the upper end, the overhead plate is rotatably connected with annular sleeve between bearing plate, the outer wall of annular sleeve is connected with two arc extrusion blocks;Overhead plate is provided with connecting rod limiting assembly on one side, for limiting the end of connecting rod;The rotating process of the annular sleeve of the present application is pushed along the guide groove to the center by the inclined surface of inclined chute, and a plurality of bearing shafts are cooperated to form support limiting surface, so that the end of connecting rod of various outer diameter specifications diesel engine can be pre-positioned;Annular sleeve can drive outer wall arc extrusion block to rotate while rotating, extrusion adjusting frame drives two sides waist limiting plate to converge, and the width of connecting rod body falling is limited in advance.

Description

Technical Field

[0001] This invention relates to the field of connecting rod processing technology, specifically to a diesel engine connecting rod precision machining device. Background Technology

[0002] The connecting rod of a diesel engine is a core transmission component of an internal combustion engine. It is integrally formed from the large end, the rod body, and the small end. The large end matches the crankshaft, and the small end is fitted with the piston pin. It transmits reciprocating power through the rod body. The inner holes of the large and small ends need to be honed to meet the assembly dimensions and geometric tolerances. In the industry, special tooling fixtures are generally used to complete the clamping, positioning, and unloading of the connecting rod after machining, so as to realize the batch continuous honing of connecting rods.

[0003] Existing honing processes for connecting rods rely on tooling to fix the workpiece and then continuously honing the inner hole. Conventional connecting rod finishing fixtures use fixed positioning support structures, and the spacing between support points cannot be adjusted according to the outer diameter of the connecting rod end of different specifications. At the same time, the workpiece clamping mechanism mostly uses bolt pressure plates, fixed mold limiters, or cylinder direct pressure structures, and manual assistance is required in the loading and unloading process. Under these conditions, the range of fixtures that can be adapted to different connecting rod models is limited, and the processing time for a single connecting rod is long.

[0004] To address the aforementioned issues, innovative design based on existing methods is urgently needed. Summary of the Invention

[0005] The purpose of this invention is to provide a diesel engine connecting rod precision machining device to solve the problems mentioned in the background art. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a diesel engine connecting rod precision machining device, comprising a base plate, an overhead plate mounted on the upper end of the base plate, a corresponding feeding groove provided on one side of the base plate and the overhead plate, a bearing plate mounted on the upper end of the overhead plate, an annular sleeve rotatably connected between the overhead plate and the bearing plate, and two arc-shaped extrusion blocks connected to the outer wall of the annular sleeve; A connecting rod limiting assembly is provided on one side of the overhead panel to limit the end of the connecting rod; The connecting rod limiting assembly includes three inclined slots formed on the annular sleeve. The bearing plate has three guide slots corresponding to the three inclined slots. Each inclined slot is provided with a force-bearing shaft. An extension frame is installed on one side of each force-bearing shaft. The extension frame is slidably connected to the guide slot. The end of the extension frame away from the force-bearing shaft is integrally formed into a bearing shaft, and an annular protrusion is naturally formed in the middle of the bearing shaft to support the end of the connecting rod. A material unloading assembly is provided on one side of the overhead panel for lowering the traction rod.

[0007] Preferably, the limiting component further includes a first telescopic rod installed on the upper end of the overhead plate, the output end of the first telescopic rod is connected to a drive frame, the annular sleeve is connected to a driven frame corresponding to the drive frame, and the drive frame and the driven frame are hinged.

[0008] Preferably, the feeding assembly includes a transmission frame rotatably connected to the lower end of the overhead plate, the transmission frame having concave ends, and the overhead plate having two waist limiting plates corresponding to the feeding groove.

[0009] Preferably, each of the waist limiting plates is laterally slidably connected to a transmission rod, and one end of each transmission rod is connected to a pressing shaft, which is movably embedded in the concave structures at both ends of the transmission frame.

[0010] Preferably, the other end of the transmission rod is connected to an interlaced rod, and a first spring is sleeved on the transmission rod corresponding to the interlaced rod and the hollow part of the waist limiting plate. An adjustment frame is connected to each side of the waist limiting plate that is far apart from each other, and the end of the adjustment frame corresponds to the arc-shaped extrusion block.

[0011] Preferably, a guide rod is mounted on the substrate, and a protrusion is formed at the connection between the guide rod and the substrate; the transmission frame is slidably connected to the outside of the guide rod, and a second spring is sleeved on the outer wall of the guide rod corresponding to the protrusion and the hollow part of the transmission frame.

[0012] Preferably, the feeding assembly further includes a second telescopic rod installed on the upper end of the overhead plate. The output end of the second telescopic rod is connected to a T-shaped plate. Two sliding rods are connected to one side of the T-shaped plate, and one end of the two sliding rods is connected to an L-shaped pressure plate.

[0013] Preferably, a drive shaft is vertically slidably connected to the upper end of the L-shaped pressure plate, and an annular protrusion is integrally formed at the upper end of the drive shaft. A third spring is connected to the lower end of the annular protrusion, and the lower end of the third spring is connected to the L-shaped pressure plate. The lower end of the drive shaft has a wedge-shaped structure design.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. During the rotation of the annular sleeve of the present invention, the inclined surface of the inclined groove pushes the three sets of bearing shafts to retract towards the center along the guide groove. The multiple bearing shafts cooperate to form a support and limiting surface, which can pre-position the ends of connecting rods of diesel engines with various outer diameter specifications. While the annular sleeve rotates, it can drive the outer wall arc-shaped extrusion block to rotate. The extrusion adjustment frame drives the waist limiting plates on both sides to retract towards each other, thus limiting the width of the connecting rod body falling in advance.

[0015] 2. The output end of the second telescopic rod of the present invention can pull the T-shaped output plate and slide rod to drive the L-shaped pressure plate to feed laterally. During the movement of the pressure plate, the end of the wedge-shaped drive shaft contacts the outer arc surface of the small end of the connecting rod. The arc component force of the output end pushes the drive shaft upward to compress the third spring to achieve lifting and avoidance. When the pressure plate moves to directly above the small end of the connecting rod, the drive shaft loses the upward pushing force, and the third spring rebounds and presses the drive shaft into the inner hole of the large end, forming an inner and outer four-point clamping and limiting structure with the multiple bearing shafts below, realizing the clamping of the connecting rod, widening the limiting range of the connecting rod, and effectively shortening the honing processing time of connecting rods of different specifications.

[0016] 3. This invention utilizes the corresponding feeding slots on the base plate and the overhead plate, along with the retracted waist limiting plate, to construct a regular connecting rod falling channel. After the honing process is completed, the second telescopic rod retracts in the opposite direction, and the wedge-shaped drive shaft pulls the connecting rod with the wedge surface, causing the connecting rod to tilt and slide into the feeding channel. During the falling process, the rod body presses against any one of the intersecting rods, which can transmit the lateral impact force to another intersecting rod of the transmission frame. This intersecting transmission of the lateral compressive force generated by the falling connecting rod prevents the connecting rod from getting stuck between the two waist limiting plates. This ensures smooth processing and feeding, reduces the frequency of equipment downtime for maintenance due to material jamming, and improves the processing efficiency of diesel engine connecting rods. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the linkage placement structure of the present invention; Figure 2 This is a schematic diagram of the linkage limiting state structure of the present invention; Figure 3 This is a schematic diagram of the connecting rod unloading state structure of the present invention; Figure 4 This is a schematic diagram showing the overall structure of the present invention disassembled. Figure 5 This is a schematic diagram of the substrate structure of the present invention; Figure 6 This is a schematic diagram of the overhead panel structure of the present invention; Figure 7 This is a schematic diagram of the transmission frame structure of the present invention; Figure 8 This is a schematic diagram of the support plate structure of the present invention; Figure 9 This is a schematic diagram of the L-shaped pressure plate structure of the present invention; Figure 10 This is a cross-sectional view of the L-shaped pressure plate structure of the present invention; Figure 11 This is a schematic diagram of the force-bearing shaft structure of the present invention.

[0018] In the diagram: 1. Base plate; 2. Overhead plate; 3. Feed trough; 4. Bearing plate; 5. Annular sleeve; 6. Arc-shaped extrusion block; 201. Inclined groove; 202. Guide groove; 203. Force-bearing shaft; 204. Extension frame; 205. Bearing shaft; 206. First telescopic rod; 207. Drive frame; 208. Driven frame; 301. Transmission frame; 302. Waist limiting plate; 303. Transmission rod; 304. Extrusion shaft; 305. Interlaced rod; 306. First spring; 307. Adjustment frame; 308. Guide rod; 309. Second spring; 310. Second telescopic rod; 311. T-shaped plate; 312. Sliding rod; 313. L-shaped pressure plate; 314. Drive shaft; 315. Annular protrusion; 316. Third spring. Detailed Implementation

[0019] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0020] Please see Figures 1-11 The present invention provides a technical solution: a diesel engine connecting rod precision machining device, including a base plate 1, an overhead plate 2 installed on the upper end of the base plate 1, a corresponding feeding groove 3 provided on one side of the base plate 1 and the overhead plate 2, a bearing plate 4 installed on the upper end of the overhead plate 2, an annular sleeve 5 rotatably connected between the overhead plate 2 and the bearing plate 4, and two arc-shaped extrusion blocks 6 connected to the outer wall of the annular sleeve 5. A connecting rod limiting assembly is provided on one side of the overhead plate 2 to limit the end of the connecting rod. The connecting rod limiting assembly includes three inclined grooves 201 formed on the annular sleeve 5. The bearing plate 4 has three guide grooves 202 corresponding to the three inclined grooves 201. Each inclined groove 201 is provided with a force-bearing shaft 203. An extension frame 204 is installed on one side of each force-bearing shaft 203. The extension frame 204 is slidably connected to the guide groove 202. The end of the extension frame 204 away from the force-bearing shaft 203 is integrally formed into a bearing shaft 205, and an annular protrusion is naturally formed in the middle of the bearing shaft 205 to support the end of the connecting rod. The limiting assembly also includes a first telescopic rod 206 installed on the upper end of the overhead plate 2. The output end of the first telescopic rod 206 is connected to a drive frame 207. The annular sleeve 5 is connected to a driven frame 208 corresponding to the drive frame 207. The drive frame 207 and the driven frame 208 are hinged. A material unloading assembly is provided on one side of the overhead plate 2 to pull the connecting rod down. Before honing the connecting rod, place the connecting rod on the upper end of the bearing plate 4, activate the first telescopic rod 206, and extend the output end of the first telescopic rod 206 forward, pushing the drive frame 207 to move horizontally. The moving drive frame 207 pushes the driven frame 208, which in turn drives the annular sleeve 5 to rotate between the overhead plate 2 and the bearing plate 4. The rotating annular sleeve 5 drives the three sets of inclined grooves 201 on its own to rotate. The rotating inclined grooves 201 squeeze the force-bearing shaft 203 through the inner wall, and the force-bearing shaft 203 is subjected to the inclined surface of the inclined grooves 201. Driven by thrust, the extension frame 204 slides along the guide groove 202 of the bearing plate 4 toward the center of the bearing plate 4; the three extension frames 204 retract inward at the same time, and the bearing shafts 205 at the ends of the extension frames 204 converge toward the center in sync. The three bearing shafts 205 with annular protrusions together form a support limiting surface for the outer diameter of the connecting rod end, which pre-limits the large end of the connecting rod; among them, the three bearing shafts 205 are only pre-positioned in an arc shape. At this time, the connecting rod is in a movable state. This pre-positioning is used to adapt to the feeding action.

[0021] In one embodiment of the present invention, the feeding assembly includes a transmission frame 301 rotatably connected to the lower end of the overhead plate 2. The transmission frame 301 has concave ends. The overhead plate 2 is provided with two waist limiting plates 302 corresponding to the feeding groove 3. Each waist limiting plate 302 is laterally slidably connected to a transmission rod 303. One end of each transmission rod 303 is connected to an extrusion shaft 304. The extrusion shaft 304 is movably embedded in the concave structures at both ends of the transmission frame 301. The other end of the transmission rod 303 is connected to an interlaced rod 305. A first spring 306 is sleeved in the hollow part of the waist limiting plate 302 corresponding to the interlaced rod 305. An adjustment frame 307 is connected to each side of the waist limiting plate 302 that is far apart from each other. The end of the adjustment frame 307 corresponds to the arc-shaped extrusion block 6. A guide rod 308 is installed on the base plate 1. A protrusion is formed at the connection between the guide rod 308 and the base plate 1. The transmission frame 301 is slidably connected to the outside of the guide rod 308. A second spring 309 is sleeved in the hollow part of the transmission frame 301 corresponding to the protrusion on the outer wall of the guide rod 308. When the large end of the connecting rod is pre-limited, the two arc-shaped extrusion blocks 6 fixed on the outer wall rotate simultaneously as the annular sleeve 5 rotates. The curved surface of the arc-shaped extrusion block 6 gradually separates from the corresponding adjusting frame 307 on both sides of the extrusion. The adjusting frames 307 on both sides move closer to each other under the restoring force of the second spring 309. The adjusting frame 307 drives the waist limiting plate 302 on the same side to retract laterally. The two waist limiting plates 302 form a width that matches the width of the connecting rod waist, which regulates the subsequent falling path of the connecting rod and prevents the connecting rod from deviating to the left or right during unloading. In particular, limiting the falling of the connecting rod and making it fall in a regular manner can facilitate the collection of subsequent workpieces.

[0022] In one embodiment of the present invention, the feeding assembly further includes a second telescopic rod 310 installed on the upper end of the overhead plate 2. The output end of the second telescopic rod 310 is connected to a T-shaped plate 311. Two sliding rods 312 are connected to one side of the T-shaped plate 311. One end of the two sliding rods 312 is connected to an L-shaped pressure plate 313. A drive shaft 314 is vertically slidably connected to the upper end of the L-shaped pressure plate 313. An annular protrusion 315 is integrally formed on the upper end of the drive shaft 314. A third spring 316 is connected to the lower end of the annular protrusion 315. The lower end of the third spring 316 is connected to the L-shaped pressure plate 313. The lower end of the drive shaft 314 has a wedge-shaped structure design. After the pre-limit is completed, the second telescopic rod 310 is activated. The output end of the second telescopic rod 310 extends forward, pulling the T-shaped plate 311 to move laterally. The T-shaped plate 311 drives the two sliding rods 312 to move in the same direction. The sliding rods 312 drive the L-shaped pressure plate 313 to move upward along the connecting rod. During the movement of the L-shaped pressure plate 313, the wedge-shaped end of the assembled drive shaft 314 first contacts the arc-shaped outer edge of the upper surface of the small end of the connecting rod. The connecting rod generates an upward pushing force on the wedge-shaped end, and the drive shaft 314 then moves along the L-shaped... The pressure plate 313 slides upward, and the sliding drive shaft 314 compresses the third spring 316. When the L-shaped pressure plate 313 has completely moved to the top of the connecting rod and the wedge-shaped end of the drive shaft 314 has completely slid into the inner hole area of ​​the small end of the connecting rod, the drive shaft 314 loses the upward resistance force of the outer edge of the connecting rod, and the compressed third spring 316 rebounds downward, pushing the drive shaft 314 to reset downward. The up and down movement of the drive shaft 314 can create a clearance against the small end of the connecting rod, which is a condition for subsequent contact with the inner hole of the small end. Because the horizontal position of the outer contour of the connecting rod end of the diesel engine is lower than that of the inner hole contour, there is a significant height difference between the two. When the drive shaft 314 enters the inner hole, the horizontal position of the wedge-shaped end of the drive shaft 314 is slightly lower than that of the inner hole, so the wedge-shaped end cannot be squeezed by the inner wall of the hole again. The lower side wall of the drive shaft 314 abuts against the inner wall of the small end of the connecting rod. At this time, the three bearing shafts 205 below support the outer ring of the connecting rod, and the drive shaft 314 above abuts against the inner hole, forming a four-point clamping and limiting structure to lock the connecting rod and prevent the connecting rod from shifting or shaking during honing, thus ensuring the precision of the finishing dimensions. Among them, the arc-shaped limit formed by the three bearing shafts 205 and the single-point limit formed by the drive shaft 314 form an irregular limit that adapts to the shape of the connecting rod, which can effectively limit it. After the honing of the large end hole of the connecting rod is completed, the second telescopic rod 310 is activated in the reverse direction. The output end of the second telescopic rod 310 retracts, pulling the T-shaped plate 311, slide rod 312, and L-shaped pressure plate 313 to reset and move horizontally. During the retraction of the L-shaped pressure plate 313, the wedge-shaped end of the drive shaft 314 abuts against the inner wall of the large end hole of the connecting rod in the reverse direction. The wedge surface generates a backward traction force, which drives the entire connecting rod to be pulled to the outside of the bearing plate 4. The small end of the connecting rod is continuously dragged by the drive shaft 314. The small end of the connecting rod is the first to break away from the support of the bearing shaft 205. The entire connecting rod forms an inclined posture and slides down toward the material groove 3 opened between the base plate 1 and the overhead plate 2. In this way, the material is unloaded by traction, reducing processing costs. During the descent of the connecting rod, the two sides of the rod body are clamped and guided by the pre-convex waist limiting plates 302, which restrain the left and right swing of the connecting rod body and ensure that the connecting rod falls vertically and neatly. When the connecting rod body falls, it will first contact the two interlaced rods 305. After the interlaced rod 305 on either side is squeezed by the connecting rod, it pushes the corresponding transmission rod 303 to slide laterally. The sliding interlaced rod 305 compresses the first spring 306 sleeved on the outside of the transmission rod 303. The compression shaft 304 at the end of the transmission rod 303 pushes the concave structure at one end of the transmission frame 301 inward. The single-sided compression shaft 304 The thrust transmitted by 4 will be transmitted through the transmission frame 301 to the other side of the extrusion shaft 304 and the staggered rod 305, forming a two-way staggered buffer force to offset the lateral extrusion force brought by the falling of the connecting rod and prevent the connecting rod from getting stuck between the two waist limit plates 302. After the connecting rod completely passes through the channel between the waist limit plates 302, it falls from the discharge chute 3 to the collection area below the equipment, completing the processing and unloading process of a single connecting rod. Among them, the staggered force formed between the two staggered rods 305 is difficult to form a fixed force resistance with the connecting rod, which can effectively prevent the material from getting stuck.

[0023] Working principle: Before positioning the connecting rod, the first telescopic rod 206 is activated. The output end of the first telescopic rod 206 extends forward, pushing the drive frame 207 to translate. The translated drive frame 207 pushes the driven frame 208, which in turn drives the annular sleeve 5 to rotate between the overhead plate 2 and the bearing plate 4. The rotating annular sleeve 5 drives the three sets of inclined grooves 201 on its own to rotate. The rotating inclined grooves 201 squeeze the force shaft 203 through the inner wall. The force shaft 203 is driven by the inclined surface of the inclined groove 201, which in turn drives the extension frame 204 to slide along the guide groove 202 on the bearing plate 4 towards the center of the bearing plate 4. The three extension frames 204 simultaneously retract inward, and the bearing shafts 205 at the ends of the extension frames 204 converge towards the center. The three bearing shafts 205 with annular protrusions together form a support limiting surface that can adapt to the outer diameter of the connecting rod end, pre-limiting the large end of the connecting rod. As the annular sleeve 5 rotates, the two arc-shaped extrusion blocks 6 fixed on the outer wall rotate simultaneously. The curved surface of the arc-shaped extrusion block 6 gradually separates from the corresponding adjustment frame 307 on both sides of the extrusion. The adjustment frames 307 on both sides move closer to each other under the restoring force of the second spring 309. The adjustment frame 307 drives the waist limiting plate 302 on the same side to retract laterally. The two waist limiting plates 302 form a width that matches the width of the connecting rod waist, which regulates the subsequent falling path of the connecting rod and prevents the connecting rod from shifting left and right when unloading. After the pre-positioning is completed, the second telescopic rod 310 is activated. The output end of the second telescopic rod 310 extends forward, pulling the T-shaped plate 311 to move laterally. The T-shaped plate 311 drives the two sliding rods 312 to move in the same direction. The sliding rods 312 drive the L-shaped pressure plate 313 to move upward along the connecting rod. During the movement of the L-shaped pressure plate 313, the wedge-shaped end of the assembled drive shaft 314 first contacts the arc-shaped outer edge of the upper surface of the small end of the connecting rod. The connecting rod generates an upward pushing force on the wedge-shaped end. The drive shaft 314 then slides upward along the L-shaped pressure plate 313. The sliding drive shaft 314 then compresses the third spring 316. When the L-shaped pressure plate 313 has completely moved to the top of the connecting rod and the wedge-shaped end of the drive shaft 314 has completely slid into the inner hole area of ​​the small end of the connecting rod, the drive shaft 314 loses the upward resistance force of the outer edge of the connecting rod. The compressed third spring 316 rebounds downward, pushing the drive shaft 314 to reset downward. Because the horizontal position of the outer contour of the connecting rod end of the diesel engine is lower than that of the inner hole contour, there is a significant height difference between the two. When the drive shaft 314 enters the inner hole, the horizontal position of the wedge-shaped end of the drive shaft 314 is slightly lower than that of the inner hole. Therefore, the wedge-shaped end cannot be squeezed by the inner wall of the hole again. The lower side wall of the drive shaft 314 abuts against the inner hole side wall of the small end of the connecting rod. At this time, the three bearing shafts 205 below support the outer ring of the connecting rod, and the drive shaft 314 above abuts against the inner hole, forming a four-point clamping and limiting structure to lock the connecting rod and prevent the connecting rod from shifting or shaking during honing, thus ensuring the dimensional accuracy of the finishing process. After the honing of the large end hole of the connecting rod is completed, the second telescopic rod 310 is started in reverse. The output end of the second telescopic rod 310 retracts, pulling the T-shaped plate 311, slide rod 312, and L-shaped pressure plate 313 to reset and move horizontally. During the retraction of the L-shaped pressure plate 313, the wedge-shaped end of the drive shaft 314 abuts against the inner wall of the large end hole of the connecting rod in the opposite direction. The wedge surface generates a backward traction force, which drives the entire connecting rod to be pulled to the outside of the bearing plate 4. The small end of the connecting rod is continuously dragged by the drive shaft 314. The small end of the connecting rod is the first to break away from the support of the bearing shaft 205. The entire connecting rod forms an inclined posture and slides down toward the material groove 3 opened between the base plate 1 and the overhead plate 2. During the descent of the connecting rod, the two sides of the rod body are clamped and guided by the pre-convex waist limiting plates 302, which restrain the left and right swing of the connecting rod body and ensure that the connecting rod falls vertically and neatly. When the connecting rod body falls, it will first contact the two interlaced rods 305. After the interlaced rod 305 on either side is squeezed by the connecting rod, it pushes the corresponding transmission rod 303 to slide laterally. The sliding interlaced rod 305 compresses the first spring 306 sleeved on the outside of the transmission rod 303, and the compression shaft 304 at the end of the transmission rod 303 pushes inward. The concave structure at one end of the push transmission frame 301; the thrust transmitted by the single-sided extrusion shaft 304 will be transmitted through the transmission frame 301 to the other side extrusion shaft 304 and the staggered rod 305, forming a bidirectional staggered buffer force to offset the lateral extrusion force brought by the falling connecting rod and prevent the connecting rod from getting stuck between the two waist limit plates 302; after the connecting rod completely passes through the channel between the waist limit plates 302, it falls from the discharge trough 3 to the collection area below the equipment, completing the single connecting rod processing and unloading process.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A diesel engine connecting rod precision machining device, comprising a base plate (1), characterized in that: A suspended plate (2) is installed on the upper end of the substrate (1). A corresponding feeding groove (3) is provided on one side of the substrate (1) and the suspended plate (2). A bearing plate (4) is installed on the upper end of the suspended plate (2). An annular sleeve (5) is rotatably connected between the suspended plate (2) and the bearing plate (4). Two arc-shaped extrusion blocks (6) are connected to the outer wall of the annular sleeve (5). A connecting rod limiting assembly is provided on one side of the overhead board (2) to limit the end of the connecting rod; The connecting rod limiting assembly includes three inclined slots (201) opened on the annular sleeve (5). The bearing plate (4) has three guide slots (202) corresponding to the three inclined slots (201). Each inclined slot (201) is provided with a force-bearing shaft (203). An extension frame (204) is installed on one side of each force-bearing shaft (203). The extension frame (204) is slidably connected to the guide slot (202). The end of the extension frame (204) away from the force-bearing shaft (203) is integrally formed into a bearing shaft (205). A ring protrusion is naturally formed in the middle of the bearing shaft (205) for supporting the end of the connecting rod. A material unloading assembly is provided on one side of the overhead panel (2) for pulling the connecting rod down.

2. The diesel engine connecting rod precision machining device according to claim 1, characterized in that: The limiting component also includes a first telescopic rod (206) installed on the upper end of the overhead plate (2), the output end of the first telescopic rod (206) is connected to a drive frame (207), the annular sleeve (5) is connected to a driven frame (208) corresponding to the drive frame (207), and the drive frame (207) and the driven frame (208) are hinged.

3. The diesel engine connecting rod precision machining device according to claim 1, characterized in that: The feeding assembly includes a transmission frame (301) rotatably connected to the lower end of the overhead plate (2). The transmission frame (301) has concave ends. The overhead plate (2) is provided with two waist limiting plates (302) corresponding to the feeding groove (3).

4. The diesel engine connecting rod precision machining device according to claim 3, characterized in that: Each of the waist limiting plates (302) is laterally slidably connected to a transmission rod (303), and one end of each transmission rod (303) is connected to an extrusion shaft (304). The extrusion shaft (304) is movably embedded in the concave structures at both ends of the transmission frame (301).

5. The diesel engine connecting rod precision machining device according to claim 4, characterized in that: The other end of the transmission rod (303) is connected to an interlaced rod (305). A first spring (306) is sleeved in the hollow part of the transmission rod (303) and the interlaced rod (305) and the waist limiting plate (302). An adjustment frame (307) is connected to each side of the waist limiting plate (302) that is far apart from each other. The end of the adjustment frame (307) corresponds to the arc-shaped extrusion block (6).

6. The diesel engine connecting rod precision machining device according to claim 5, characterized in that: A guide rod (308) is installed on the substrate (1), and a protrusion is formed at the connection between the guide rod (308) and the substrate (1); the transmission frame (301) is slidably connected to the outside of the guide rod (308), and a second spring (309) is sleeved at the corresponding protrusion on the outer wall of the guide rod (308) and the hollow part of the transmission frame (301).

7. A diesel engine connecting rod finishing device according to claim 6, characterized in that: The feeding assembly also includes a second telescopic rod (310) installed on the upper end of the overhead plate (2). The output end of the second telescopic rod (310) is connected to a T-shaped plate (311). Two sliding rods (312) are connected to one side of the T-shaped plate (311), and one end of the two sliding rods (312) is connected to an L-shaped pressure plate (313).

8. The diesel engine connecting rod finishing device according to claim 7, characterized in that: The upper end of the L-shaped pressure plate (313) is vertically slidably connected to a drive shaft (314). The upper end of the drive shaft (314) is integrally formed with an annular protrusion (315). The lower end of the annular protrusion (315) is connected to a third spring (316). The lower end of the third spring (316) is connected to the L-shaped pressure plate (313). The lower end of the drive shaft (314) has a wedge-shaped structure design.

Images