Feeding mechanism for mechanical part machining

Abstract

The utility model discloses a feeding mechanism for machining mechanical parts, which relates to the technical field of numerical control milling machines and comprises a fixed bottom plate, a transmission belt is arranged in the fixed bottom plate, a first fixed frame is arranged on the right side of the fixed bottom plate, and a second fixed frame is arranged in the middle of the top end of the fixed bottom plate on the side of the first fixed frame; the output end of the driving motor extends into the first fixing frame and is provided with a correcting mechanism used for conducting centering treatment on the workpiece. According to the feeding mechanism for mechanical part machining, the output end of a driving motor rotates and drives a two-way threaded rod to rotate, the two-way threaded rod can drive a movable block to move outside the two-way threaded rod in the rotating process, the movable block can drive a correcting plate to move towards the inner side in the moving process, and the correcting plate can push a workpiece when moving; and the workpiece is in a centered state on the surface of the transmission belt, so that the workpiece can be conveniently clamped and machined subsequently.

Description

Technical Field

[0001] This utility model relates to the field of CNC milling machine technology, specifically to a feeding mechanism for machining mechanical parts. Background Technology

[0002] The feeding process of a CNC milling machine refers to the process of conveying the workpiece to the working position and completing the positioning and clamping, ensuring that the workpiece is stable and accurately positioned during processing. By using the feeding mechanism, the workpiece to be processed can be smoothly conveyed, so that the workpiece can be processed continuously and stably. However, in use, traditional feeding mechanisms are prone to workpiece stacking during workpiece conveying, which affects the stability of workpiece clamping.

[0003] To overcome the aforementioned shortcomings, existing technology (Chinese Patent No. CN219193719U, Publication Date: 2023-06-16) provides a material feeding device for machining mechanical parts. This device includes a main body, with two rectangular mounting columns fixedly installed on the top wall. Sliding grooves are formed on one side wall of each column. Powerful motors are fixedly installed on the top wall of each column, with threaded rods movably mounted at their output ends. These threaded rods penetrate the wall of the mounting columns into the sliding groove cavities. When mechanical parts need to be fed, the operator starts a powerful hydraulic press. The press, along with a telescopic rod and a sponge plate, clamps the part to be fixed. The two sponge plates move towards each other, clamping and fixing the mechanical parts, facilitating feeding. This design is simple and highly practical.

[0004] The aforementioned mechanism uses a hydraulic press to drive a telescopic rod and a sponge plate to position the workpiece. However, in actual use, when clamping and fixing the workpiece, stacked workpieces must be pushed off. If the workpieces are stacked during transport, it will affect the subsequent processing quality. Utility Model Content

[0005] The purpose of this utility model is to provide a feeding mechanism for machining mechanical parts, so as to solve the problem mentioned in the background art that traditional feeding mechanisms are prone to workpiece stacking during workpiece transport, which affects the stability of workpiece clamping.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a feeding mechanism for machining mechanical parts, comprising a fixed base plate, a transmission belt disposed inside the fixed base plate, a first fixed frame disposed on the right side of the fixed base plate, and a second fixed frame disposed at the middle position of the top of the fixed base plate on the side of the first fixed frame; a drive motor is mounted on the front end of the first fixed frame via a coupling, and the output end of the drive motor extends into the interior of the first fixed frame and is equipped with a centering mechanism for centering the workpiece, the centering mechanism comprising a bidirectional threaded rod, one end of the bidirectional threaded rod being rotatably connected to the first fixed frame, a movable block being threadedly connected to the outer side of the bidirectional threaded rod, and a centering plate being mounted on the bottom end of the movable block; a mounting box is disposed inside the second fixed frame, and an anti-stacking mechanism for preventing workpiece stacking is disposed inside the mounting box.

[0007] Furthermore, the inner side of the alignment plate is provided with anti-slip protrusions, and the anti-slip protrusions are evenly distributed on the inner side of the alignment plate.

[0008] Furthermore, the cross-section of the aligning plate is L-shaped, and the aligning plate is symmetrical about the central axis of the vertical direction of the first fixing frame.

[0009] Furthermore, a slide rail is provided at the top of the first fixed frame, and a guide rod is fixedly connected to the top of the movable block. A slider matching the slide rail is fixedly connected to the top of the guide rod, and the first fixed frame and the guide rod are slidably connected through the slider and the slide rail to form a sliding mechanism.

[0010] Furthermore, the anti-stacking mechanism includes a limiting spring, which is welded to the inside of the mounting box. A piston is provided at the bottom end of the limiting spring, and a scraper is provided at the bottom end of the piston.

[0011] Furthermore, an elastic airbag is fixedly connected to the top of the first fixing frame, and a return spring is provided on one side between the elastic airbags. The side of the elastic airbag is connected to the mounting box through a hose.

[0012] Furthermore, a fan is provided on one side between the first fixed frame and the second fixed frame, and the output end of the drive motor is connected to a cam through a sprocket transmission mechanism. The cam is rotatably connected to the first fixed frame, and a propulsion assembly is slidably connected to the front end of the first fixed frame. A fixed plate is fixedly connected to the front end of the first fixed frame, and the bottom end of the propulsion assembly passes through and extends to the bottom of the fixed plate. Corresponding conductive plates are installed on the bottom end of the propulsion assembly and the front end of the first fixed frame, and a connecting spring is wound around the upper end of the outer side of the propulsion assembly.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The output end of the drive motor rotates and drives the bidirectional threaded rod to rotate. During the rotation of the bidirectional threaded rod, the movable block moves outside of it. During the movement of the movable block, the centering plate moves inward. When the centering plate moves, it pushes the workpiece so that the workpiece is centered on the surface of the transmission belt, which is convenient for subsequent clamping and processing of the workpiece.

[0015] Furthermore, the anti-slip protrusions on the inner side of the alignment plate can increase the anti-slip performance when in contact with the workpiece, preventing the workpiece from sliding and shifting when being pushed for position adjustment. In addition, the shape of the alignment plate itself can increase the contact area with the workpiece, making it easier to perform alignment processing on the workpiece.

[0016] Furthermore, as the moving block drives the guide rod to move, it will compress both sides of the elastic airbag. The gas inside the elastic airbag will enter the interior of the mounting box through the hose due to the compression. After the gas inside the mounting box increases, the piston will be pushed and moved downward. At the same time, the scraper will also move downward in sync, so that the scraper can limit the height of the workpiece. When the workpieces are stacked, the upper workpiece will be pushed off by the scraper to avoid the stacking of workpieces affecting the processing of subsequent workpieces.

[0017] 2. The output end of the drive motor can drive the cam to rotate through the sprocket transmission mechanism. When the cam rotates, it will squeeze the push component, thereby causing the push component to move downward. When the push component moves downward, the connecting spring is stressed and shortens its length. The conductive plate set at the bottom of the push component and the conductive plate set on the side of the first fixed frame are in contact with each other and conduct electricity, thereby energizing the fan and blowing air on the surface of the workpiece conveyed below, cleaning the residual debris on the surface of the workpiece, and avoiding the debris residue from affecting the subsequent workpiece processing.

[0018] Furthermore, by intermittently rotating the drive motor and controlling the power supply of the fan, the waste of power resources is reduced. After the cam rotates and resets, the propulsion component is reset by the elastic force of the connecting spring, and the conductive plates are separated, thereby achieving power off. By using the reciprocating rotation of the cam, the contact and separation between the conductive plates are achieved, thus stably realizing the power supply and power off of the fan and increasing the flexibility of use. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of the present utility model.

[0020] Figure 2 This is a frontal sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the alignment mechanism and anti-stacking mechanism of this utility model.

[0022] Figure 4 This is a schematic diagram of the impurity removal mechanism of this utility model.

[0023] Figure 5 This is a schematic diagram of the alignment mechanism of this utility model.

[0024] Figure 6 This is a schematic diagram of the anti-stacking mechanism of this utility model.

[0025] In the diagram: 1. Fixed base plate; 2. Transmission belt; 3. First fixed frame; 4. Drive motor; 5. Bidirectional threaded rod; 6. Movable block; 7. Alignment plate; 8. Anti-slip protrusion; 9. Guide rod; 10. Slider; 11. Slide rail; 12. Fan; 13. Cam; 14. Propulsion assembly; 15. Fixed plate; 16. Conductive sheet; 17. Connecting spring; 18. Elastic airbag; 19. Return spring; 20. Mounting box; 21. Limit spring; 22. Piston; 23. Scraper; 24. Second fixed frame. Detailed Implementation

[0026] 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.

[0027] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 5The technical solution shown addresses the problem of workpiece misalignment during feeding. The feeding mechanism for machining mechanical parts discloses a centering mechanism, including a fixed base plate 1. A transmission belt 2 is installed inside the fixed base plate 1. A first fixed frame 3 is located on the right side of the fixed base plate 1, and a second fixed frame 24 is located at the middle of the top of the fixed base plate 1 on the side of the first fixed frame 3. A drive motor 4 is mounted at the front end of the first fixed frame 3 via a coupling, and the output end of the drive motor 4 extends into the interior of the first fixed frame 3 and is equipped with a centering mechanism for workpiece alignment. The centering mechanism includes a bidirectional threaded rod 5, and the bidirectional threaded rod 5 rotates... One end of the bidirectional threaded rod 5 connected to the first fixed frame 3 is threaded with a movable block 6 on the outer side, and a centering plate 7 is installed at the bottom of the movable block 6; anti-slip protrusions 8 are provided on the inner side of the centering plate 7, and the anti-slip protrusions 8 are evenly distributed on the inner side of the centering plate 7; the cross-section of the centering plate 7 is L-shaped, and the centering plate 7 is symmetrical about the vertical central axis of the first fixed frame 3; a slide rail 11 is provided at the top of the interior of the first fixed frame 3, and a guide rod 9 is fixedly connected to the top of the movable block 6. A slider 10 matching the slide rail 11 is fixedly connected to the top of the guide rod 9, and the first fixed frame 3 and the guide rod 9 are slidably connected through the slider 10 and the slide rail 11 to form a sliding mechanism.

[0028] In this example, the workpiece is placed on the surface of the conveyor belt 2 for feeding. The workpiece passes through the second fixed frame 24 and is pushed off by an anti-stacking mechanism to prevent stacked workpieces from affecting subsequent processing. The workpiece continues to be conveyed and its surface is cleaned by a cleaning mechanism. The output of the drive motor 4 rotates, driving the bidirectional threaded rod 5 to rotate. During rotation, the bidirectional threaded rod 5 drives the movable block 6 to move externally. The movable block 6, in turn, drives the centering plate 7 to move inward. The centering plate 7 pushes the workpiece, ensuring it is centered on the surface of the conveyor belt 2, facilitating subsequent clamping and processing. The anti-stacking mechanism inside the centering plate 7... The sliding bump 8 increases the anti-slip performance when in contact with the workpiece, preventing the workpiece from sliding and shifting when being pushed for position adjustment. Furthermore, the shape of the straightening plate 7 increases the contact area with the workpiece, facilitating better workpiece alignment. During the movement of the movable block 6 due to the rotation of the bidirectional threaded rod 5, it simultaneously drives the guide rod 9, which in turn drives the slider 10. The slider 10 and the slide rail 11 form a sliding connection. This sliding connection prevents angular deviation during the movement of the movable block 6, resulting in smoother overall movement and increased usability.

[0029] Example 2: Figure 1 , Figure 2 , Figure 3 and Figure 6 The technical solution shown addresses the problem of workpiece stacking during traditional feeding mechanisms, which affects workpiece clamping stability. This feeding mechanism for machining mechanical parts discloses an anti-stacking mechanism. The second fixing frame 24 houses a mounting box 20, which contains an anti-stacking mechanism to prevent workpiece stacking. The anti-stacking mechanism includes a limiting spring 21, welded to the inside of the mounting box 20. A piston 22 is located at the bottom of the limiting spring 21, and a scraper 23 is located at the bottom of the piston 22. An elastic airbag 18 is fixedly connected to the top of the first fixing frame 3, and a return spring 19 is located on one side between the elastic airbags 18. The side of the elastic airbag 18 is connected to the mounting box 20 via a flexible hose.

[0030] In this example, as the movable block 6 moves the guide rod 9, it compresses both sides of the elastic airbag 18. The gas inside the elastic airbag 18, due to this compression, enters the mounting box 20 through the hose. As the gas inside the mounting box 20 increases, the piston 22 is pushed forward and moves downward. Simultaneously, the scraper 23 also moves downward, thus limiting the height of the workpiece. When workpieces are stacked, the uppermost workpiece is pushed off by the scraper 23, preventing the stacking from affecting the processing of subsequent workpieces. After being compressed, the elastic airbag 18 returns to its original position when the guide rod 9 returns to its original position. The airbag 18 will reset its shape via the return spring 19. After the elastic airbag 18 is reset, the gas inside the mounting box 20 will be drawn back into the elastic airbag 18 through the hose. At the same time, the gas inside the mounting box 20 will decrease, and the limit spring 21 will drive the piston 22 to reset through its own elastic force. Meanwhile, the scraper 23 will move into the mounting box 20. The guide rod 9 is used to clamp the workpiece, so that the anti-stacking mechanism can be repeatedly pushed down. This can avoid the use of too many drive devices for control, reduce the overall cost of the equipment, and increase the applicability of the overall equipment.

[0031] Example 3: Figure 1 , Figure 2 , Figure 3 and Figure 4The technical solution shown addresses the problem that dust and impurities may remain on the workpiece surface during the feeding process, affecting the processing effect in subsequent processing. The feeding mechanism for machining mechanical parts discloses a cleaning mechanism. A fan 12 is installed on one side between the first fixed frame 3 and the second fixed frame 24. The output end of the drive motor 4 is connected to a cam 13 via a sprocket transmission mechanism. The cam 13 is rotatably connected to the first fixed frame 3. A propulsion assembly 14 is slidably connected to the front end of the first fixed frame 3. A fixed plate 15 is fixedly connected to the front end of the first fixed frame 3. The bottom end of the propulsion assembly 14 passes through and extends below the fixed plate 15. Corresponding conductive plates 16 are installed at the bottom end of the propulsion assembly 14 and the front end of the first fixed frame 3. A connecting spring 17 is wound around the upper outer side of the propulsion assembly 14.

[0032] In this example, the output of the drive motor 4 drives the cam 13 to rotate via a sprocket transmission mechanism. When the cam 13 rotates, it squeezes the push assembly 14, causing the push assembly 14 to move downward. When the push assembly 14 moves downward, the connecting spring 17 is stressed and shortens its length. The conductive plate 16 at the bottom of the push assembly 14 and the conductive plate 16 on the side of the first fixed frame 3 come into contact with each other and conduct electricity, thereby energizing the fan 12 and blowing air onto the surface of the workpiece conveyed below to clean the residual debris on the workpiece surface and prevent the debris residue from affecting subsequent workpiece processing. By intermittently rotating the drive motor 4 and controlling the energization of the fan 12, the waste of power resources is reduced. After the cam 13 rotates and resets, the push assembly 14 is reset by the elastic force of the connecting spring 17, and the conductive plates 16 separate, thereby de-energizing. By using the reciprocating rotation of the cam 13 to achieve contact and separation between the conductive plates 16, the energization and de-energization of the fan 12 can be stably realized, increasing the flexibility of use.

[0033] 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 feeding mechanism for machining mechanical parts, comprising a fixed base plate (1), the inside of the fixed base plate (1) is provided with a transmission belt (2), the right side of the fixed base plate (1) is provided with a first fixed frame (3), and the middle position of the top end of the fixed base plate (1) on the side of the first fixed frame (3) is provided with a second fixed frame (24); characterized in that the front end of the first fixed frame (3) is provided with a driving motor (4) through a shaft coupling, and the output end of the driving motor (4) extends to the inside of the first fixed frame (3) and is provided with a centering mechanism for centering the workpiece, the centering mechanism comprises a bidirectional threaded rod (5), one end of which is rotatably connected between the first fixed frame (3), the outer side of the bidirectional threaded rod (5) is threadedly connected with a movable block (6), and the bottom end of the movable block (6) is provided with a centering plate (7); the inside of the second fixed frame (24) is provided with a mounting box (20), and the inside of the mounting box (20) is provided with an anti-piling mechanism for avoiding piling of workpieces.

2. The feeding mechanism for machining of mechanical parts according to claim 1, characterized in that: The inner side of the centering plate (7) is provided with anti-skid protrusions (8), and the anti-skid protrusions (8) are distributed at equal intervals on the inner side of the centering plate (7).

3. The feeding mechanism for machining of mechanical parts according to claim 2, characterized in that: The cross section of the centering plate (7) is L-shaped, and the centering plate (7) is symmetrical about the vertical central axis of the first fixed frame (3).

4. The feeding mechanism for machining of mechanical parts according to claim 3, characterized in that: The top end of the inside of the first fixed frame (3) is provided with a sliding rail (11), and the top end of the movable block (6) is fixedly connected with a guide rod (9), the top end of the guide rod (9) is fixedly connected with a sliding block (10) matched with the sliding rail (11), and the first fixed frame (3) and the guide rod (9) are connected through the sliding block (10) and the sliding rail (11) to form a sliding mechanism.

5. The feeding mechanism for machining of mechanical parts according to claim 4, characterized in that: The anti-piling mechanism comprises a limiting spring (21), and the limiting spring (21) is welded in the inside of the mounting box (20), the bottom end of the limiting spring (21) is provided with a piston (22), and the bottom end of the piston (22) is provided with a scraper (23).

6. The feeding mechanism for machining of mechanical parts according to claim 5, characterized in that: The top end of the inside of the first fixed frame (3) is fixedly connected with an elastic air bag (18), and one side between the elastic air bags (18) is provided with a return spring (19), and the side of the elastic air bag (18) is connected with the mounting box (20) through a hose.

7. The feeding mechanism for machining of mechanical parts according to claim 6, characterized in that: One side between the first fixed frame (3) and the second fixed frame (24) is provided with a fan (12), the output end of the driving motor (4) is connected with a cam (13) through a chain wheel transmission mechanism, the cam (13) is rotatably connected with the first fixed frame (3), the front end of the first fixed frame (3) is slidably connected with a propulsion assembly (14), the front end of the first fixed frame (3) is fixedly connected with a fixed plate (15), the bottom end of the propulsion assembly (14) penetrates and extends below the fixed plate (15), the bottom end of the propulsion assembly (14) and the front end of the first fixed frame (3) are both provided with corresponding conductive sheets (16), and the upper end of the outer side of the propulsion assembly (14) is wound with a connecting spring (17).

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