Multi-directional reciprocating mechanism based on cam driving

Abstract

The utility model discloses a multidirectional reciprocating mechanism based on cam driving, and relates to the technical field of machine tool equipment. The cam is connected with a connecting rod in a matched mode, the outer side face of the cam is provided with a special-shaped protruding ring, the outer side face of the special-shaped protruding ring is provided with a high step face and a low step face, the high step face and the low step face are connected through an inclined face, the outer side face of the special-shaped protruding ring is provided with a rotating piece, and the end of the rotating piece is connected with the high step face or the low step face in a matched mode. The multi-directional reciprocating mechanism has the advantages that by adopting a cam driving mechanism, a complex gear transmission system or a hydraulic / pneumatic system in a traditional multi-directional reciprocating mechanism is greatly simplified, the manufacturing cost is reduced, the maintenance requirement and the failure rate are reduced, and the overall reliability and economical efficiency of the system are improved; by designing the cam with the special-shaped convex ring, the mechanism can drive the connecting rod and the rotating piece to achieve complex multi-direction reciprocating motion, the limitation of one-way or simple reciprocating motion of a traditional cam driving mechanism is broken through, and the application range is widened.

Description

Technical Field

[0001] This utility model relates to the field of machine tool equipment technology, and in particular to a multi-directional reciprocating mechanism based on cam drive. Background Technology

[0002] In the fields of automated processing and mechanical transmission, multi-directional reciprocating mechanisms are widely used in the drive systems of various equipment to achieve complex and precise reciprocating motion. Traditional multi-directional reciprocating mechanisms often rely on complex gear transmission systems or hydraulic / pneumatic systems, which not only increases the complexity and cost of the system, but may also lead to wear and failure during long-term use, affecting the stability and accuracy of the system.

[0003] In order to overcome the shortcomings of the traditional multi-directional reciprocating mechanism, in recent years, cam-driven mechanisms have gradually gained favor in the industry due to their advantages such as simple structure, clear motion law, and ease of control and maintenance. Through the profile design of the cam, the cam mechanism can accurately control the displacement, speed and acceleration of the follower to achieve various complex motion trajectories.

[0004] However, most existing cam drive mechanisms can only achieve unidirectional or simple reciprocating motion, which is difficult to meet some high-precision, multi-directional machining requirements.

[0005] Based on this, the applicant proposed a cam-driven multi-directional reciprocating mechanism to solve the above technical problems. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing a cam-driven multi-directional reciprocating mechanism.

[0007] This utility model is solved by the following technical solution:

[0008] A cam-driven multi-directional reciprocating mechanism includes a cam, which is connected to a connecting rod. The outer side of the cam is provided with a shaped protruding ring, and the outer side of the shaped protruding ring is provided with a high step surface and a low step surface. The high step surface and the low step surface are connected by an inclined plane. The outer side of the shaped protruding ring is provided with a rotating member, and the end of the rotating member is connected to the high step surface or the low step surface.

[0009] Preferably, during the rotation of the cam, when the connecting rod is close to the rotation axis of the cam, the rotating component abuts against the high step surface.

[0010] Preferably, during the rotation of the cam, when the connecting rod is in a stage away from the cam rotation axis, the rotating component disengages from the high step surface.

[0011] Preferably, one end of the connecting rod is provided with a mating wheel A that abuts against the cam, and the other end is fixedly connected to the machining part. The machining part is slidably mounted on the machining table, and a spring is also provided between the connecting rod and the machining table.

[0012] Preferably, one end of the rotating component is provided with a mating wheel B that abuts against the irregular convex ring.

[0013] Preferably, the other end of the rotating component is provided with an adjuster, which is connected in conjunction with the clamp.

[0014] Preferably, when the mating wheel B abuts against the high step surface, the adjuster presses the clamping device, thereby pressing the clamping device against the corresponding workpiece on the fixed fixture plate.

[0015] Preferably, when the mating wheel B disengages from the abutment of the high step surface, the adjuster releases the clamp, thereby releasing the fixation of the workpiece.

[0016] A device applying the above-mentioned cam-driven multi-directional reciprocating mechanism includes a drive motor A, which is connected to the clamping disk via a transmission mechanism. The clamping disk has a plurality of workpiece positions evenly spaced along its edge. The transmission mechanism converts the continuous rotation of the drive motor A into the intermittent rotation of the clamping disk. The drive motor A is also connected to the cam, which is simultaneously connected to the machining part and the clamping device. When the clamping disk is in the rotation gap, the cam controls the machining part to move closer to the clamping disk to process the workpiece while simultaneously controlling the clamping device to press and fix the corresponding workpiece on the clamping disk.

[0017] Preferably, the clamp is adjustablely mounted on the housing, a slide rail A is fixedly mounted on the housing, an adjusting slider A is slidably mounted on the slide rail A, an installation block is fixedly mounted on the adjusting slider A, and the clamp is fixedly connected to the installation block.

[0018] Preferably, the housing is also adjustablely provided with a mounting rod, and a pressure plate is adjustablely mounted on the mounting rod. The pressure plate is located on the side of the clamping plate and presses the workpiece along the axial direction.

[0019] Preferably, a guide block is also provided above the clamping plate, the guide block is fixedly connected to the mounting plate, a vertical plate is fixedly provided on the housing, a guide rail B is fixedly installed on the vertical plate, an adjusting slider B is slidably connected on the guide rail B, and the mounting plate is fixedly connected to the adjusting slider B.

[0020] Preferably, the processing unit includes a tool holder slidably disposed on the processing table, a cutting tool is disposed on the tool holder, and a drive motor B is fixedly mounted on the tool holder, the drive motor B controlling the rotation of the cutting tool.

[0021] Preferably, it also includes a feeding mechanism, which includes a vibratory feeder, the outlet of which is provided with a conveying track, and the outlet of the conveying track is located above the clamping plate.

[0022] Preferably, the clamping disc is also equipped with a discharge ramp, so that the processed workpiece is discharged through the discharge ramp after leaving the clamping disc.

[0023] Preferably, the processing table is also provided with a waste discharge port.

[0024] Preferably, the processing table is provided with a slide rail C, a protective cover is slidably mounted on the slide rail C, and an observation window is also provided on the protective cover.

[0025] Preferably, it also includes a controller, which is electrically connected to the vibratory feeder, the drive motor A, and the drive motor B.

[0026] The beneficial effects of this utility model are as follows:

[0027] 1. Simplified structure and reduced cost: By adopting a cam drive mechanism, this mechanism greatly simplifies the complex gear transmission system or hydraulic / pneumatic system in traditional multi-directional reciprocating mechanisms, which not only reduces manufacturing costs, but also reduces maintenance requirements and failure rate, and improves the overall reliability and economy of the system.

[0028] 2. Improved motion accuracy and stability: Thanks to the precise design of the cam profile, this mechanism can achieve precise control of the displacement, speed and acceleration of the follower, thereby meeting the requirements of high-precision machining. At the same time, the smoothness of the cam drive helps to reduce impact and vibration, improve machining quality and system stability.

[0029] 3. Achieving multi-directional reciprocating motion: By designing a cam with an irregularly shaped convex ring, this mechanism can drive the connecting rod and rotating parts to achieve complex multi-directional reciprocating motion, breaking the limitations of traditional cam drive mechanisms that only achieve unidirectional or simple reciprocating motion and broadening the application range.

[0030] 4. Enhanced automation: By combining rotating parts, adjusters, and clamping devices, this mechanism achieves automatic clamping and release of workpieces, improving the automation level of the processing, reducing manual intervention, and enhancing production efficiency and safety.

[0031] 5. Easy to maintain and upgrade: Due to its simple structure and modular design, daily maintenance and troubleshooting are more convenient. At the same time, the modular design also facilitates possible future upgrades and modifications. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0034] Figure 2 This is a schematic diagram of the three-dimensional structure of the cam of this utility model.

[0035] Figure 3 This is a three-dimensional structural diagram of the installation state of this utility model.

[0036] Figure 4 This is a three-dimensional structural diagram of the installation state of this utility model.

[0037] Figure 5 This is a three-dimensional structural diagram of the installation state of this utility model.

[0038] Figure 6 This is a three-dimensional structural diagram of the installation state of this utility model.

[0039] Figure 7 This is a three-dimensional structural diagram of the application equipment of this utility model.

[0040] Figure 8 This is a three-dimensional structural diagram of the application equipment of this utility model.

[0041] Figure 9 This is a three-dimensional structural diagram of the application equipment of this utility model.

[0042] Figure 10 This is a three-dimensional structural diagram of the application equipment of this utility model.

[0043] Figure 11 This is a three-dimensional structural diagram of the processing part of this utility model.

[0044] In the diagram: 1. Drive motor A, 2. Fixture plate, 3. Workpiece position, 4. Clamping device, 5. Cam, 6. Connecting rod, 7. Mating wheel A, 8. Machining table, 9. Irregular convex ring, 10. High step surface, 11. Low step surface, 12. Inclined surface, 13. Rotating component, 14. Mating wheel B, 15. Adjuster, 16. Housing, 17. Slide rail A, 18. Adjusting slider A, 19. Mounting block, 20. Mounting rod, 21. Pressure plate, 22. Tool holder, 23. Drive motor B, 24. Tool, 25. Vertical plate, 26. Guide rail B, 27. Adjusting slider B, 28. Mounting plate, 29. Guide block, 30. Vibratory feeder, 31. Conveying track, 32. Discharge ramp, 33. Waste discharge port, 34. Slide rail C, 35. Protective cover, 36. Observation window, 37. Controller. Detailed Implementation

[0045] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments described in this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1:

[0046] like Figures 1 to 2 As shown, this utility model discloses a cam-driven multi-directional reciprocating mechanism, including a cam 5, which is connected to a connecting rod 6. The outer side of the cam 5 is provided with a shaped protruding ring 9, and the outer side of the shaped protruding ring 9 is provided with a high step surface 10 and a low step surface 11. The high step surface 10 and the low step surface 11 are connected by an inclined surface 12. The outer side of the shaped protruding ring 9 is provided with a rotating member 13, and the end of the rotating member 13 is connected to the high step surface 10 or the low step surface 11.

[0047] During the rotation of the cam 5, when the connecting rod 6 is close to the rotation axis of the cam 5, the rotating member 13 abuts against the high step surface 10; when the connecting rod 6 is far from the rotation axis of the cam 5, the rotating member 13 disengages from the high step surface 10.

[0048] like Figures 3 to 7 As shown, one end of the connecting rod 6 is provided with a mating wheel A7 that abuts against the cam 5, and the other end is fixedly connected to the machining part. The machining part is slidably disposed on the machining table 8, and a spring is also provided between the connecting rod 6 and the machining table 8.

[0049] One end of the rotating component 13 is provided with a mating wheel B14 that abuts against the irregular convex ring 9, and the other end is provided with an adjuster 15. The adjuster 15 is connected to the clamping device 4. When the mating wheel B14 abuts against the high step surface 10, the adjuster 15 presses the clamping device 4, thereby pressing the clamping device 4 to fix the corresponding workpiece on the fixture disk 2. When the mating wheel B14 disengages from the abutment against the high step surface 10, the adjuster 15 releases the clamping device 4, thereby releasing the fixation of the workpiece.

[0050] The above technical solution realizes a cam-driven multi-directional reciprocating mechanism that can achieve multi-directional reciprocating motion through a single motor drive. This can simultaneously perform at least two processing operations. The design is ingenious, the structure is simple, and it can also improve the consistency of processing.

[0051] The following device applies the above-mentioned cam-driven multi-directional reciprocating mechanism:

[0052] The device includes a drive motor A1, which is connected to the clamping disk 2 via a transmission mechanism. The clamping disk 2 has several workpiece positions 3 evenly spaced along its edge. The transmission mechanism converts the continuous rotation of the drive motor A1 into the intermittent rotation of the clamping disk 2. The drive motor A1 is also connected to the cam 5, which is connected to both the processing unit and the clamping device 4. When the clamping disk 2 is in the rotation gap, the cam 5 controls the processing unit to move closer to the clamping disk 2 to process the workpiece while simultaneously controlling the clamping device 4 to press and fix the corresponding workpiece on the clamping disk 2.

[0053] The disc-shaped clamping plate 2, together with several workpiece positions 3 set at equal intervals along the edges, enables continuous processing of workpieces. Compared with a single-station automated chamfering device, the multiple stations in this utility model can work simultaneously, allowing the equipment to process one workpiece while other stations are preparing other workpieces, thereby improving equipment utilization and reducing waste of equipment and human resources. The simultaneous operation of multiple stations significantly improves the overall processing efficiency of the equipment, meeting the needs of large-scale, high-efficiency production.

[0054] Through specific adjustments to the multi-directional reciprocating mechanism, the fixture disk 2, and the transmission mechanism, when the fixture disk 2 is in the rotation gap, one of the workpiece positions 3 is aligned with the tool 24. Simultaneously, the cam 5 rotates, and in conjunction with the spring, the tool holder 22 moves closer to the fixture disk 2. At the same time, the high step surface 10 abuts against the mating wheel B14. The adjuster 15 presses the clamping device 4 to firmly fix the workpiece on the workpiece position 3, preventing the workpiece from moving or rotating during the machining process. The drive motor B drives the tool 24 to rotate, achieving chamfering of the workpiece. After machining, the cam 5 pushes the tool holder 22 away from the fixture disk 2, and the mating wheel B14 disengages from the high step surface 10. The adjuster 15 releases the clamping device 4, thereby releasing the fixation of the workpiece. At this time, the fixture disk 2 continues to rotate to the next workpiece position 3 aligned with the tool 24, and then repeats the above process to achieve continuous machining of the workpiece.

[0055] The clamp 4 is adjustablely mounted on the housing 16. A slide rail A17 is fixedly mounted on the housing 16. An adjusting slider A18 is slidably mounted on the slide rail A17. An installation block 19 is fixedly mounted on the adjusting slider A18. The clamp 4 is fixedly connected to the installation block 19.

[0056] A guide block 29 is also provided above the clamping plate 2. The guide block 29 is fixedly connected to the mounting plate 28. A vertical plate 25 is fixedly provided on the housing 16. A guide rail B26 is fixedly installed on the vertical plate 25. An adjusting slider B27 is slidably connected to the guide rail B26. The mounting plate 28 is fixedly connected to the adjusting slider B27.

[0057] The slidable clamping device 4 and the slidable guide block 29 facilitate the feeding and clamping of workpieces of different specifications. Compared with the conventional fixed setting, this structure is more flexible and has a higher fault tolerance.

[0058] The housing 16 is also adjustablely provided with a mounting rod 20, and a pressure plate 21 is adjustablely mounted on the mounting rod 20. The pressure plate 21 is located on the side of the clamping plate 2 and presses the workpiece along the axial direction.

[0059] By setting the pressure plate 21, vibration during the rotation of the clamping disk 2 is avoided, which would cause the workpiece to move in the axial direction. This ensures that when the workpiece reaches the processing position, its head is tightly against the clamping disk 2, thus guaranteeing the consistency and accuracy of the chamfering process. The pressure plate 21 is connected to the mounting rod 20 by screws. The pressure plate 21 is provided with a U-shaped opening. The position of the pressure plate 21 on the mounting rod 20 can be adjusted by adjusting the specific position of the screw in the U-shaped opening. The angle of the pressure plate 21 can also be adjusted to meet the needs of clamping the workpiece. The mounting rod 20 is connected to the housing 16 by screws or bolts. The distance between the pressure plate 21 and the clamping disk 2 can be controlled by adjusting the specific position of the mounting rod 20, thereby meeting the clamping requirements of workpieces of different specifications.

[0060] The processing unit includes a tool holder 22 slidably mounted on the processing table 8, a tool 24 is mounted on the tool holder 22, and a drive motor B23 is also fixedly mounted on the tool holder 22, the drive motor B23 controlling the rotation of the tool 24.

[0061] The selection of tool 24 depends on the specific workpiece and machining parameters. Tool 24 can be a single tool head or multiple tool heads.

[0062] It also includes a feeding mechanism, which includes a vibratory feeder 30. The outlet of the vibratory feeder 30 is provided with a conveying track 31, and the outlet of the conveying track 31 is located above the clamping plate 2.

[0063] The feeding mechanism can also be other types, such as a robotic arm. Those skilled in the art can set it up according to actual needs. Of course, it is also possible not to set up an automatic feeding mechanism and to feed the material directly by hand. However, this operation has certain risks and requires corresponding training and the setting of relevant protection measures. For example, gloves are not allowed, and a protective plate is set above the tool 24 to prevent the operator from directly contacting the tool 24. Specific measures can be adjusted according to the actual situation.

[0064] The clamping disc 2 is also equipped with a discharge ramp 32. After the processed workpiece leaves the clamping disc 2, it is discharged through the discharge ramp 32. The processing table 8 is also equipped with a waste discharge port 33. The processing table 8 is equipped with a slide rail C34. A protective cover 35 is slidably mounted on the slide rail C34. An observation window 36 is also provided on the protective cover 35.

[0065] The discharge ramp 32 is designed to collect the processed workpiece. One end of the discharge ramp 32 is located on the side of the clamping plate 32. After the workpiece reaches this position, it will detach from the clamping plate 32 under its own gravity and fall onto the discharge ramp 32. A collection frame can be set at the other end of the discharge ramp 32 to facilitate the collection of the processed workpiece and its transport to the next processing equipment.

[0066] It also includes a controller 37, which is electrically connected to the vibratory plate 30, the drive motor A1 and the drive motor B23.

[0067] The transmission mechanism in the above embodiment converts the continuous rotation of the drive motor A1 into the intermittent rotation of the clamping disk 2. This transmission mechanism can be implemented using various existing structures, such as Geneva wheel indexing mechanism, ratchet mechanism, cam intermittent motion mechanism, and incomplete gear mechanism. The specific structure adopted depends on actual needs. The specific structure of a transmission mechanism (ratchet mechanism) is provided below:

[0068] A drive wheel is connected to the output shaft of drive motor A. The drive wheel is connected to a driven wheel via a transmission belt. The driven wheel is fixedly connected to the main shaft. The main shaft is rotatably mounted inside housing 16. The main shaft is fixedly connected to cam 5. A bevel gear A is also mounted on the main shaft. A bevel gear B is meshed with bevel gear A. The axis of bevel gear B is parallel to the axis of clamping disk 2. A turntable is fixedly mounted coaxially on bevel gear B. A rocker arm is mounted on the turntable. A pawl is mounted at the end of the rocker arm. A ratchet is fixedly mounted coaxially on clamping disk 2. The pawl and ratchet arm are engaged. The continuous reciprocating swing of the rocker arm causes the ratchet arm to rotate intermittently.

[0069] The ratchet mechanism described above is only one feasible structure. In actual production, even for ratchet mechanisms, there are many feasible solutions, and those skilled in the art can make settings according to actual conditions.

[0070] In order to control the rotational speed of cam 5 and clamping disk 2, a speed reducer can be set according to actual needs. The specific setting of the speed reducer can be made by those skilled in the art as needed. This part can be done by existing technology and will not be described in detail here.

[0071] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0072] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cam-driven multi-directional reciprocating mechanism, characterized in that: The cam (5) is connected to a connecting rod (6). The outer side of the cam (5) is provided with a shaped protruding ring (9). The outer side of the shaped protruding ring (9) is provided with a high step surface (10) and a low step surface (11). The high step surface (10) and the low step surface (11) are connected by an inclined surface (12). The outer side of the shaped protruding ring (9) is provided with a rotating member (13). The end of the rotating member (13) is connected to the high step surface (10) or the low step surface (11).

2. The multi-directional reciprocating mechanism based on cam drive according to claim 1, characterized in that: During the rotation of the cam (5), when the connecting rod (6) is close to the rotation axis of the cam (5), the rotating part (13) abuts against the high step surface (10).

3. The multi-directional reciprocating mechanism based on cam drive according to claim 1, characterized in that: During the rotation of the cam (5), when the connecting rod (6) is in a stage away from the rotation axis of the cam (5), the rotating member (13) disengages from the high step surface (10).

4. The multi-directional reciprocating mechanism based on cam drive according to claim 1, characterized in that: One end of the connecting rod (6) is provided with a mating wheel A (7) that abuts against the cam (5), and the other end is fixedly connected to the processing part. The processing part is slidably arranged on the processing table (8), and a spring is also provided between the connecting rod (6) and the processing table (8).

5. A cam-driven multi-directional reciprocating mechanism according to claim 1, characterized in that: One end of the rotating component (13) is provided with a mating wheel B (14) that abuts against the irregular convex ring (9).

6. A cam-driven multi-directional reciprocating mechanism according to claim 5, characterized in that: The other end of the rotating part (13) is provided with an adjuster (15), which is connected to the clamp (4).

7. A cam-driven multi-directional reciprocating mechanism according to claim 6, characterized in that: When the mating wheel B (14) abuts against the high step surface (10), the adjuster (15) presses the clamp (4) so ​​that the clamp (4) presses the corresponding workpiece on the fixed fixture plate (2).

8. A cam-driven multi-directional reciprocating mechanism according to claim 6, characterized in that: When the mating wheel B (14) disengages from the abutment of the high step surface (10), the adjuster (15) releases the clamp (4) to release the workpiece from fixation.

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