A machining device for a construction machine link

Abstract

The utility model relates to connecting rod processing technical field and disclose a kind of machining device for engineering machinery connecting rod, including workbench, installation frame is fixedly installed on the workbench, mobile device and drilling device are provided on the installation frame, two fixed rings are fixedly installed on the workbench, rotating ring is rotatably installed in the inside of two fixed rings, fixed block is fixedly installed in the inside of two rotating rings, rotating drive mechanism is provided on the workbench, clamping mechanism and clamping drive mechanism are provided in the inside of fixed block.The utility model is driven to realize the accurate adjustment of workpiece multiple angle by stepping motor, satisfy complex drilling demand;While equipped with efficient chip and coolant processing system, effectively keep working environment clean, improve resource utilization, reduce subsequent cleaning cost.The whole operation is convenient, stability is high, with good application effect and popularization value.

Description

Technical Field

[0001] This utility model relates to the field of connecting rod processing technology, specifically a processing device for connecting rods in engineering machinery. Background Technology

[0002] In the field of engineering machinery manufacturing and maintenance, connecting rods, as key transmission components, are widely used in equipment such as engines and hydraulic machinery. Their complex structure and high machining precision requirements, especially in the drilling, reaming, boring, and milling processes of the connecting rod's small end hole, large end hole, and end face, place high demands on the positioning accuracy and clamping efficiency of the machining equipment. The existing patent document with publication number CN219093711U discloses a drilling device for connecting rod processing, including a processing platform. Two support plates that move in opposite directions are horizontally slidably on the processing platform. The support plates have a lower threaded groove, and a lower screw is threadedly connected to the lower threaded groove. A lower conical clamping body is fixed to the upper end of the lower screw. An upper conical clamping body that moves vertically is detachably connected to the upper end of the lower conical clamping body. The lower conical clamping body and the small diameter end of the upper conical clamping body are arranged opposite each other.

[0003] However, the above-mentioned device has the following problems when in use: During the drilling process of the connecting rod, for holes whose depth exceeds the effective drilling capacity of the drill bit or the machine tool stroke, it is usually necessary to drill a certain depth first, and then flip the workpiece to continue drilling from the other side to complete the through hole. However, the clamping method used by the above-mentioned equipment is fixed in position and lacks flexibility. When it is necessary to switch the machining surface, the operator must first release the current clamping state, then manually flip the connecting rod, and finally reposition and clamp it before continuing the machining. This repeated disassembly, flipping and reclamping operation not only significantly reduces the machining efficiency and increases the operational complexity, but may also introduce positioning errors in multiple clamping, affecting the machining accuracy. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art and to propose a processing device for connecting rods of engineering machinery, which effectively improves processing accuracy, production efficiency and working environment safety.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A processing device for connecting rods in engineering machinery includes a worktable, a mounting frame fixedly installed on the worktable, a moving device and a drilling device mounted on the mounting frame, two fixed rings fixedly installed on the worktable, a rotating ring rotatably installed inside each of the two fixed rings, and a fixed block fixedly installed inside each of the two rotating rings. A rotary drive mechanism is provided on the worktable, and a clamping mechanism and a clamping drive mechanism are provided inside the fixed blocks.

[0006] Preferably, the rotary drive mechanism includes an external gear ring and a stepper motor. There are two external gear rings, which are respectively fixedly installed on the periphery of the corresponding rotating ring. The stepper motor is mounted on a mounting bracket, and a mounting rod is fixedly installed on the output end of the shaft of the stepper motor. Two drive gears are fixedly installed on the mounting rod, and the drive gears are meshed with the corresponding external gear rings.

[0007] Preferably, the two fixed rings are provided with exposed grooves, which allow the drive gear to extend into the fixed ring and mesh with the outer gear ring.

[0008] Preferably, the clamping mechanism includes a fixed frame, which is fixedly installed inside the fixed block. A bidirectional lead screw is rotatably installed on the fixed frame. Two lead screw nuts are threaded onto the bidirectional lead screw. Both lead screw nuts pass through the fixed block and are fixedly installed with mounting plates. A transverse bevel gear is fixedly installed on one side of the bidirectional lead screw through the fixed frame.

[0009] Preferably, flexible pads are inlaid on the surfaces of the corresponding mounting plates that face each other.

[0010] Preferably, the clamping drive mechanism includes a drive motor, which is mounted on the outer wall of one of the fixed blocks. A connecting rod is fixedly mounted on the output end of the shaft of the drive motor, and two vertical bevel gears are fixedly mounted on the connecting rod. The two vertical bevel gears are located inside the corresponding fixed blocks, and the vertical bevel gears are meshed with the corresponding horizontal bevel gears.

[0011] Preferably, a grid plate is embedded in the workbench, and a hollow chamber is fixedly installed at the bottom of the workbench. The hollow chamber has a frustum-shaped structure that is wider at the top and narrower at the bottom. A concentration chamber is fixed at the bottom of the hollow chamber, and an installation frame is movably installed on the concentration chamber. A filter plate is embedded in the installation frame, and a handle is fixedly installed on the installation frame. A drain pipe is fixedly installed at the bottom of the installation frame.

[0012] Preferably, both fixing blocks are provided with placement slots, and the upper surfaces of the two placement slots are flush.

[0013] Compared with the prior art, the present invention has the following beneficial effects: (1) This utility model is designed with a precision angle adjustment mechanism. This function is achieved by fixing two fixed rings with rotating rings fixedly installed on the worktable. The fixed block inside the rotating ring integrates a clamping mechanism, which can firmly clamp the workpiece. The precise angle adjustment is achieved by the stepper motor driving the gear to mesh with the external gear ring. This design allows the workpiece to rotate at multiple angles in the horizontal plane, thereby meeting the drilling requirements of different positions and angles. In addition, since a stepper motor is used as the power source, it can ensure that each rotation can reach the preset position, which greatly improves the processing accuracy and efficiency. This is crucial for complex processing tasks that require drilling multiple holes (such as oil holes and connecting holes) on different sides and at different angles of the connecting rod. It significantly improves the processing efficiency and hole position accuracy (position accuracy and angle accuracy), while avoiding the errors and time consumption caused by multiple clamping.

[0014] (2) This utility model achieves efficient clamping or releasing of the connecting rod workpiece by setting a bidirectional lead screw, lead screw nut, and mounting plate inside the fixed block. A key feature is that a single drive motor can simultaneously control the movement of two independent clamping points, ensuring uniform clamping force on both sides and avoiding workpiece displacement due to uneven clamping. The flexible pad embedded in the mounting plate not only provides cushioning protection to prevent damage to the workpiece surface but also increases friction, ensuring stability during clamping. This design improves work efficiency and ensures processing quality.

[0015] (3) The grid plate embedded in the workbench of this utility model allows these materials to fall smoothly into the frustoconical hollow chamber at the bottom, which guides them to the collection chamber for collection. The collection chamber is equipped with a movable mounting frame, on which the filter plate can effectively filter out most solid particles and purify the coolant, allowing it to be recycled and reused through the drain pipe. This design not only helps to maintain a clean working environment and reduce safety hazards, but also saves resources and reduces production costs. The easily removable mounting frame facilitates regular cleaning and maintenance, further enhancing its practicality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a processing device for connecting rods in engineering machinery according to the present invention; Figure 2 This is a schematic diagram showing the location of the slot for the processing device for connecting rods in engineering machinery, as proposed in this utility model. Figure 3 This is a schematic diagram of the rotary drive mechanism of a processing device for connecting rods in engineering machinery, as proposed in this utility model. Figure 4 This is a schematic diagram of the structure of a clamping mechanism for a processing device for connecting rods in engineering machinery, as proposed in this utility model. Figure 5This is a schematic diagram of the structure of a clamping drive mechanism for a processing device for connecting rods in engineering machinery, as proposed in this utility model. Figure 6 This is a schematic diagram illustrating the chip handling principle of a processing device for connecting rods in engineering machinery, as proposed in this utility model.

[0017] In the diagram: 1. Workbench; 2. Mounting bracket; 3. Fixing ring; 4. Grating plate; 5. Hollow chamber; 6. Central chamber; 7. Mounting frame; 8. Stepper motor; 9. Mounting rod; 10. Drive motor; 11. Rotating ring; 12. Fixing block; 13. Placement slot; 14. Connecting rod; 15. External gear ring; 16. Drive gear; 17. Exposed slot; 18. Fixing bracket; 19. Bidirectional lead screw; 20. Lead screw nut; 21. Mounting plate; 22. Flexible pad; 23. Horizontal bevel gear; 24. Vertical bevel gear; 25. Filter plate; 26. Drain pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1 to 6 A machining device for connecting rods in engineering machinery includes a worktable 1, a mounting frame 2 fixedly mounted on the worktable 1, a moving device and a drilling device mounted on the mounting frame 2, the worktable 1 providing a stable foundation platform for the entire device; the mounting frame 2 is used to support and position the drilling device and its moving device, so that the drilling head can move in three-dimensional space to align with different positions of the workpiece for machining. Preferably, the drilling device can be a variable diameter drilling device to adapt to different usage requirements.

[0020] Since the moving device and drilling device are existing technologies and have been fully disclosed in prior art documents, they will not be described in detail here.

[0021] Two fixed rings 3 are fixedly installed on the worktable 1. Rotating rings 11 are rotatably installed inside each of the two fixed rings 3. Fixed blocks 12 are fixedly installed inside each of the two rotating rings 11. A rotation drive mechanism is provided on the worktable 1. A clamping mechanism and a clamping drive mechanism are provided inside the fixed blocks 12.

[0022] Two fixed rings 3 are firmly installed on the workbench, and the rotating ring 11 inside can drive the internal fixed block 12 to rotate. The fixed block 12 integrates the mechanism for clamping the connecting rod workpiece and the power source for driving the clamping mechanism. The rotation drive mechanism is responsible for driving the two rotating rings 11 (together with the fixed block 12 and the clamped workpiece) to rotate synchronously, so as to realize the angle adjustment of the workpiece in the horizontal plane and meet the requirements of multi-angle drilling.

[0023] The two fixed rings 3 and their internal clamping mechanisms are designed to clamp the central shaft part (rather than the beginning and end) of the connecting rod workpiece. This central clamping method has significant advantages over the traditional beginning and end clamping: it greatly improves the rigidity and stability of the workpiece during processing, effectively suppresses vibration and deformation caused by excessive overhang, thereby ensuring high-precision drilling quality; at the same time, it simplifies the control of the workpiece rotation angle, and is especially suitable for high-precision, multi-angle drilling of long rod-shaped, easily deformable or complex end-shaped engineering machinery connecting rods.

[0024] like Figure 2 , Figure 3 As shown, the rotary drive mechanism includes an external gear ring 15 and a stepper motor 8. There are two external gear rings 15, which are fixedly installed on the periphery of the corresponding rotating ring 11. The stepper motor 8 is mounted on the mounting bracket 2. A mounting rod 9 is fixedly installed on the output end of the shaft of the stepper motor 8. Two drive gears 16 are fixedly installed on the mounting rod 9. The drive gears 16 are meshed with the corresponding external gear rings 15.

[0025] The core of the rotary drive mechanism is the stepper motor 8, which drives the mounting rod 9 to rotate. The two drive gears 16 on the mounting rod 9 mesh with the external gear ring 15 fixed on the rotating ring 11. When the stepper motor 8 is running, the meshing transmission between the drive gear 16 and the external gear ring 15 accurately drives the two rotating rings 11 (and the workpiece) to rotate synchronously to the set angle position, so as to achieve precise machining at multiple angles.

[0026] like Figure 3 As shown, the two fixed rings 3 are provided with exposed grooves 17. The exposed grooves 17 allow the driving gear 16 to extend into the fixed ring 3 and mesh with the external gear ring 15. The exposed grooves 17 on the fixed ring 3 provide the necessary space channel for the driving gear 16, so that the driving gear 16 mounted on the mounting rod 9 can pass through the outer wall of the fixed ring 3 and penetrate into its interior to achieve effective meshing and transmission with the external gear ring 15 on the rotating ring 11.

[0027] like Figure 4 , Figure 5 As shown, the clamping mechanism includes a fixed frame 18, which is fixedly installed inside the fixed block 12. A bidirectional lead screw 19 is rotatably mounted on the fixed frame 18. Two lead screw nuts 20 are threaded onto the bidirectional lead screw 19. Both lead screw nuts 20 pass through the fixed block 12 and are fixedly mounted on a mounting plate 21. A transverse bevel gear 23 is fixedly mounted on one side of the bidirectional lead screw 19 through the fixed frame 18.

[0028] The core of the clamping mechanism is the bidirectional lead screw 19. When the bidirectional lead screw 19 rotates, the two lead screw nuts 20 with opposite directions of rotation will move towards or away from each other along the screw axis. The lead screw nuts 20 drive the mounting plate 21 to move, thereby clamping or releasing the connecting rod workpiece placed between the two mounting plates 21. The transverse bevel gear 23 is used to transmit the rotational power to the bidirectional lead screw 19.

[0029] As a preferred option, the thread direction of the bidirectional lead screw 19 is symmetrically designed, and the initial positions of the lead screw nuts 20 on both sides are aligned to ensure synchronization.

[0030] It is worth noting that, through the cooperation of the guide groove and the guide block, the lead screw nut 20 can only perform translational movement on the fixed frame 18.

[0031] like Figure 4 As shown, flexible pads 22 are inlaid on the surfaces of the mounting plates 21 facing each other. The flexible pads 22 (such as rubber, polyurethane, etc.) on the inner side of the mounting plates 21 directly contact the workpiece surface, providing buffering and protection to prevent the clamping force from damaging the connecting rod surface, while increasing the friction to ensure stable and reliable clamping.

[0032] like Figure 4 , Figure 5 As shown, the clamping drive mechanism includes a drive motor 10, which is mounted on the outer wall of one of the fixed blocks 12. A connecting rod 14 is fixedly mounted on the output end of the shaft of the drive motor 10. Two vertical bevel gears 24 are fixedly mounted on the connecting rod 14. Both vertical bevel gears 24 are located inside the corresponding fixed blocks 12, and the vertical bevel gears 24 are meshed with the corresponding horizontal bevel gears 23.

[0033] The clamping drive mechanism is powered by a drive motor 10, which drives two vertical bevel gears 24 to rotate synchronously via a connecting rod 14. Each vertical bevel gear 24 meshes with a horizontal bevel gear 23 on the clamping mechanism in the corresponding fixed block 12, converting the power into horizontal rotation, thereby driving the bidirectional lead screw 19 to rotate, ultimately achieving synchronous clamping or loosening of the two sets of mounting plates 21, and realizing synchronous control of the two independent clamping points.

[0034] like Figure 1 , Figure 6 As shown, a grid plate 4 is inlaid and installed on the workbench 1, and a hollow chamber 5 is fixedly installed at the bottom of the workbench 1. The hollow chamber 5 is a frustoconical structure that is wider at the top and narrower at the bottom. A collection chamber 6 is fixedly installed at the bottom of the hollow chamber 5. An installation frame 7 is movably installed on the collection chamber 6. A filter plate 25 is inlaid and installed on the installation frame 7. A handle is fixedly installed on the installation frame 7. A drain pipe 26 is fixedly installed at the bottom of the installation frame 7.

[0035] The grating plate 4 allows the coolant and iron filings used during drilling to fall smoothly; the frustoconical hollow chamber 5 guides the falling coolant and iron filings to the collection chamber 6 at the bottom; the filter plate 25 filters out most of the solid particles (iron filings) in the coolant; the movable mounting frame 7 makes it easy to remove the filter plate 25 for cleaning or replacement, and the filtered coolant can be collected and recycled through the drain pipe 26; the handle makes it easy for operators to pull out the mounting frame 7 for maintenance.

[0036] Preferably, the mounting frame 7 can be detachably fixed to the central chamber 6 by means of bolts, clips, etc., thereby further improving the stability of use.

[0037] Preferably, a sealing ring is provided at the joint between the mounting frame 7 and the central chamber 6 to prevent liquid leakage.

[0038] like Figure 2 As shown, each of the two fixed blocks 12 has a placement groove 13, and the upper surfaces of the two placement grooves 13 are flush. The placement groove 13 at the top of the fixed block 12 is a horizontal reference surface with the upper surface flush, which provides initial and stable support and positioning for the connecting rod body to be processed, ensuring that the workpiece maintains a horizontal posture before and during rotation.

[0039] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing device for connecting rods in engineering machinery, comprising a worktable (1), wherein a mounting frame (2) is fixedly mounted on the worktable (1), and a moving device and a drilling device are provided on the mounting frame (2), characterized in that, Two fixed rings (3) are fixedly installed on the worktable (1). Rotating rings (11) are rotatably installed inside the two fixed rings (3). Fixed blocks (12) are fixedly installed inside the two rotating rings (11). A rotation drive mechanism is provided on the worktable (1). A clamping mechanism and a clamping drive mechanism are provided inside the fixed block (12).

2. The processing device for connecting rods in engineering machinery according to claim 1, characterized in that, The rotary drive mechanism includes an external gear ring (15) and a stepper motor (8). There are two external gear rings (15), and the two external gear rings (15) are respectively fixedly installed on the periphery of the corresponding rotating ring (11). The stepper motor (8) is mounted on the mounting bracket (2). The shaft output end of the stepper motor (8) is fixedly mounted with a mounting rod (9). Two drive gears (16) are fixedly mounted on the mounting rod (9). The drive gears (16) are meshed with the corresponding external gear rings (15).

3. The processing device for connecting rods in engineering machinery according to claim 2, characterized in that, The two fixed rings (3) are provided with exposed grooves (17), which allow the drive gear (16) to extend into the fixed ring (3) and mesh with the external gear ring (15).

4. The processing device for connecting rods in engineering machinery according to claim 2, characterized in that, The clamping mechanism includes a fixed frame (18), which is fixedly installed inside the fixed block (12). A bidirectional lead screw (19) is rotatably installed on the fixed frame (18). Two lead screw nuts (20) are threadedly installed on the bidirectional lead screw (19). Both lead screw nuts (20) pass through the fixed block (12) and are fixedly installed with mounting plates (21). A transverse bevel gear (23) is fixedly installed on one side of the bidirectional lead screw (19) through the fixed frame (18).

5. The processing device for connecting rods in engineering machinery according to claim 4, characterized in that, Flexible pads (22) are inlaid on the mutually facing surfaces of the mounting plates (21).

6. The processing device for connecting rods in engineering machinery according to claim 4, characterized in that, The clamping drive mechanism includes a drive motor (10), which is mounted on the outer wall of one of the fixed blocks (12). A connecting rod (14) is fixedly mounted on the output end of the shaft of the drive motor (10). Two vertical bevel gears (24) are fixedly mounted on the connecting rod (14). The two vertical bevel gears (24) are located inside the corresponding fixed blocks (12), and the vertical bevel gears (24) are meshed with the corresponding horizontal bevel gears (23).

7. The processing device for connecting rods in engineering machinery according to claim 1, characterized in that, A grid plate (4) is inlaid on the workbench (1). A hollow chamber (5) is fixedly installed at the bottom of the workbench (1). The hollow chamber (5) is a frustum-shaped structure that is wider at the top and narrower at the bottom. A concentration chamber (6) is fixed at the bottom of the hollow chamber (5). An installation frame (7) is movably installed on the concentration chamber (6). A filter plate (25) is inlaid on the installation frame (7). A handle is fixedly installed on the installation frame (7). A drain pipe (26) is fixedly installed at the bottom of the installation frame (7).

8. The processing device for connecting rods in engineering machinery according to claim 1, characterized in that, Both of the fixing blocks (12) are provided with placement slots (13), and the upper surfaces of the two placement slots (13) are flush.

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