Key processing mechanism

Abstract

The present invention relates to the field of key processing technology, and in particular to a key processing mechanism, which solves the shortcomings existing in the prior art and comprises a workbench and a milling mechanism, wherein a carrying assembly and a transmission device are respectively arranged on the workbench; the carrying assembly comprises a loading platform slidably mounted on the top of the workbench, two force storage baffles are fixedly arranged on the top of the loading platform, and a thrust plate is slidably arranged inside the loading platform, a first spring is fixedly arranged between the thrust plate and the loading platform, a touch block is welded on one side of the thrust plate, and a limiting block is welded on the end of the thrust plate; through the arrangement of structures such as a track plate and a model groove, a track plate that imitates the shape of the key groove is adopted for special-shaped key grooves, and the track plate is used to define the milling cutter, and in combination with a rotatable and retractable connecting rod mechanism, the special-shaped key grooves can be milled quickly and efficiently, the action speed of the mechanism is fast, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of key processing, and in particular to a key processing mechanism. Background Art

[0002] A key is a key in mechanical transmission, which is mainly used for circumferential fixation between the shaft and the parts on the shaft to transmit torque. Some keys can also realize axial fixation or axial movement of the parts on the shaft. A groove matching the key is machined on the shaft or in the hole to install the key to transmit torque. This groove is called a keyway.

[0003] In the prior art, when milling special-shaped keyways, intelligent equipment is used to define the milling route of the milling cutter. The design procedure is complicated, and a servo three-axis is used for control. The movement of the mechanism is relatively slow, and the processing accuracy and efficiency need to be improved. In addition, when milling array-arranged keyways, multiple drive sources are often used in combination, some of which are used to control the movement of the milling cutter, and some of which are used to control the movement of the workpiece, resulting in a high manufacturing cost. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a key processing mechanism.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A key processing mechanism comprises a workbench and a milling mechanism, wherein a carrier assembly and a transmission device are respectively arranged on the workbench;

[0007] The carrier assembly includes a loading platform slidably mounted on the top of the workbench, two force storage baffles are fixedly arranged on the top of the loading platform, and a thrust plate is slidably arranged inside the loading platform, a first spring is fixedly arranged between the thrust plate and the loading platform, a touch block is welded on one side of the thrust plate, and a limit block is welded on the end of the thrust plate;

[0008] The milling mechanism includes a track plate arranged above the workbench, a double-axis motor is fixedly installed on the top of the track plate, two output ends of the double-axis motor are respectively connected to the first rotating shaft and the second rotating shaft through a coupling, the end of the first rotating shaft is fixedly connected to a mother connecting rod, the internal movable sleeve of the mother connecting rod is provided with a sub-connecting rod, the end of the sub-connecting rod is equipped with a ball, the bottom of the track plate is provided with a model groove, the ball is slidably matched with the model groove, and one side of the bottom of the sub-connecting rod is fixedly connected to a mounting seat through a countersunk screw, a servo motor is fixedly installed on the mounting seat, and a tool is fixedly connected to the output end of the servo motor, and a resistance plate corresponding to the force storage baffle is welded on one side of the track plate;

[0009] When the milling mechanism completes one processing action, the transmission device causes the carrier assembly to slide one processing unit to the left.

[0010] Preferably, the transmission device comprises a first transmission main shaft and a second transmission main shaft rotatably mounted on one side of the workbench and a connecting seat fixedly connected to the loading platform, the first transmission main shaft and the second transmission main shaft are respectively movably sleeved with a first transmission sub-shaft and a second transmission sub-shaft, and the first transmission sub-shaft and the second transmission sub-shaft are respectively rotatably mounted on one side of the track plate and the connecting seat;

[0011] A driven shaft is rotatably mounted on the connecting seat via a bearing, a rotating disk is arranged on the outer fixed sleeve of the driven shaft, and a driving rod for pushing the touch block is welded on one side of the rotating disk.

[0012] Preferably, the second rotating shaft and the first transmission sub-shaft, the first transmission main shaft and the second transmission main shaft, and the second transmission sub-shaft and the driven shaft are all connected through gear transmission.

[0013] Preferably, it further comprises a limit block for locking the position of the limit block, one side of the top of the limit block is inclined, and the limit block is slidably arranged on the workbench.

[0014] Preferably, a rectangular groove is provided near the end of the workbench, a lifting block is slidably connected inside the rectangular groove, the lifting block is fixedly connected to the limiting block by screws, a second spring is fixedly connected to the bottom of the lifting block, and the other end of the second spring is fixedly connected to the bottom wall of the rectangular groove.

[0015] Preferably, a slide groove is provided inside the loading platform, the thrust plate is slidably connected to the slide groove, and two ends of the first spring are fixedly connected to one side of the thrust plate and the side wall of the slide groove respectively.

[0016] Preferably, a telescopic slot is provided inside the mother connecting rod, the sub-connecting rod is slidably connected to the telescopic slot, a third spring is fixed to one end of the sub-connecting rod, and the other end of the third spring is fixedly connected to the side wall of the telescopic slot.

[0017] Preferably, the top of the workbench is fixed with symmetrically arranged guide rails by countersunk screws, and a chip removal slot hole penetrating the workbench is opened inside, the guide rails are symmetrically arranged on both sides of the chip removal slot hole, and the loading platform is slidably connected to the guide rails.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention adopts a track plate that imitates the shape of the keyway for the special-shaped keyway through the arrangement of the track plate, the model groove and other structures. The track plate is used to define the milling cutter, and the special-shaped keyway can be milled quickly and efficiently in conjunction with a rotatable and retractable connecting rod mechanism. The movement speed of the mechanism is fast, and the production efficiency is greatly improved.

[0020] 2. In the present invention, by setting up structures such as the carrier component and the transmission device, when the milling mechanism is in the processing process, the transmission device first transmits the stored force to generate a pulling force on the loading platform. When the milling mechanism completes the processing, the stored force is released to automatically enable the loading platform to drive the workpiece to move, thereby eliminating the need for the coordinated use of multiple driving sources, reducing manufacturing costs, and saving energy consumption.

[0021] 3. In the present invention, the chip removal slot hole is designed to be arranged below the processing station, so that the debris is automatically removed during processing, thereby ensuring the stable operation of the equipment and reducing the workload of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A front view of a key processing mechanism proposed by the present invention;

[0023] Figure 2 A schematic diagram of a key processing mechanism proposed by the present invention during processing;

[0024] Figure 3 A schematic diagram highlighting the carrier assembly and the transmission device proposed by the present invention;

[0025] Figure 4 A schematic diagram of a milling mechanism proposed by the present invention;

[0026] Figure 5 for Figure 3 Enlarged view of the center labeled A;

[0027] Figure 6 This is a bottom view of the track plate proposed by the present invention.

[0028] In the figure: 1 workbench, 2 carrier assembly, 21 loading platform, 22 animal baffle, 23 slide, 24 thrust plate, 25 limit block, 26 touch block, 27 first spring, 3 milling mechanism, 31 track plate, 310 model groove, 311 ball, 32 dual-axis motor, 33 resistance plate, 34 servo motor, 35 tool, 36 mother connecting rod, 37 child connecting rod, 4 transmission device, 41 first transmission main shaft, 42 first transmission sub-shaft, 43 second transmission main shaft, 44 second transmission sub-shaft, 45 connecting seat, 46 turntable, 47 hitting rod, 5 rectangular groove, 6 second spring, 7 lifting block, 8 limit block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-6A key processing mechanism includes a workbench 1 and a milling mechanism 3, and the workbench 1 is respectively provided with a carrier assembly 2 and a transmission device 4; the carrier assembly 2 includes a loading platform 21 slidably mounted on the top of the workbench 1, and two force storage baffles 22 are fixedly arranged on the top of the loading platform 21, and a thrust plate 24 is slidably arranged inside the loading platform 21, and a first spring 27 is fixedly arranged between the thrust plate 24 and the loading platform 21, a touch block 26 is welded on one side of the thrust plate 24, and a limiting block 25 is welded on the end of the thrust plate 24; the milling mechanism 3 includes a track plate 31 arranged above the workbench 1, and a dual-axis motor 32 is fixedly installed on the top of the track plate 31, and the two output ends of the dual-axis motor 32 are respectively connected through a coupling A first rotating shaft and a second rotating shaft are connected, and a mother connecting rod 36 is fixedly connected to the end of the first rotating shaft. A sub-connecting rod 37 is provided in the internal movable sleeve of the mother connecting rod 36. A ball 311 is installed at the end of the sub-connecting rod 37. A model groove 310 is opened at the bottom of the track plate 31. The ball 311 slides with the model groove 310, and a mounting seat is fixedly connected to one side of the bottom of the sub-connecting rod 37 by a countersunk screw. A servo motor 34 is fixedly installed on the mounting seat. A tool 35 is fixedly connected to the output end of the servo motor 34. A resistance plate 33 corresponding to the force storage baffle 22 is welded on one side of the track plate 31. When the milling mechanism 3 completes a processing action, the transmission device 4 is used to make the carrier component 2 slide to the left by one processing unit.

[0031] Among them, through the setting of structures such as the track plate 31 and the model groove 310, a track plate 31 that imitates the shape of the keyway is used for the special-shaped keyway. The track plate 31 is used to define the milling cutter, and the rotatable and retractable connecting rod mechanism is used to quickly and efficiently mill the special-shaped keyway. The movement speed of the mechanism is fast, and the production efficiency is greatly improved. Through the setting of structures such as the carrier component 2 and the transmission device 4, when the milling mechanism 3 is in the processing process, the transmission device 4 first transmits the stored force to generate a pulling force on the loading platform 21. When the milling mechanism 3 completes the processing, the stored force is released to automatically enable the loading platform 21 to drive the workpiece to move, thereby eliminating the need for the coordinated use of multiple driving sources, reducing manufacturing costs, and saving energy consumption. Through the design of the chip removal slot hole, the chip removal slot hole is set below the processing station, and debris is automatically removed during processing, ensuring the stable operation of the equipment while reducing the workload of personnel.

[0032] The transmission device 4 includes a first transmission main shaft 41 and a second transmission main shaft 43 rotatably mounted on one side of the workbench 1, and a connecting seat 45 fixedly connected to the loading platform 21. The first transmission main shaft 41 and the second transmission main shaft 43 are respectively movably sleeved with a first transmission sub-shaft 42 and a second transmission sub-shaft 44. The first transmission sub-shaft 42 and the second transmission sub-shaft 44 are respectively rotatably mounted on one side of the track plate 31 and the connecting seat 45; a driven shaft is rotatably mounted on the connecting seat 45 through a bearing, and a rotating disk 46 is fixedly sleeved on the outside of the driven shaft. A hitting rod 47 for pushing the touch block 26 is welded to one side of the rotating disk 46. The second rotating shaft and the first transmission sub-shaft 42, the first transmission main shaft 41 and the second transmission main shaft 43, the second transmission sub-shaft 44 and the driven shaft are all connected through gear transmission, and also include a limit block 8 for locking the position of the limit block 25. The top side of the limit block 8 is inclined, and the limit block 8 is slidably arranged on the workbench On the workbench 1, a rectangular groove 5 is provided near the end of the workbench 1, and a lifting block 7 is slidably connected inside the rectangular groove 5. The lifting block 7 is fixedly connected to the limiting block 8 by screws. The bottom of the lifting block 7 is fixedly connected to a second spring 6, and the other end of the second spring 6 is fixedly connected to the bottom wall of the rectangular groove 5. A slide groove 23 is provided inside the loading platform 21, and the thrust plate 24 is slidably connected to the slide groove 23. The two ends of the first spring 27 are respectively fixedly connected to one side of the thrust plate 24 and the side wall of the slide groove 23. A telescopic groove is provided inside the mother connecting rod 36, and the sub-connecting rod 37 is slidably connected to the telescopic groove. A third spring is fixed to one end of the sub-connecting rod 37, and the other end of the third spring is fixedly connected to the side wall of the telescopic groove. A symmetrically arranged guide rail is fixed to the top of the workbench 1 by countersunk screws, and a chip removal slot hole that runs through the workbench 1 is provided inside the workbench 1, and the guide rails are symmetrically arranged on both sides of the chip removal slot hole, and the loading platform 21 is slidably connected to the guide rail.

[0033] In this embodiment, the processing process is as follows: ① The workpiece to be milled is placed on the top of the loading platform 21 and clamped and positioned using a standard part clamping device to prepare for processing;

[0034] ② The milling mechanism 3 is driven by a cylinder component and moves downward to approach the workpiece. When the milling mechanism 3 moves downward, the first transmission sub-shaft 42 is partially retracted into the first transmission main shaft 41. The double-axis motor 32 does not move during the gradual feeding of the tool 35. When the tool 35 is immersed in the workpiece, the double-axis motor 32 is started. The two output ends of the double-axis motor 32 are vertically distributed. At this time, the resistance plate 33 on one side of the track plate 31 blocks one side of the power storage baffle 22;

[0035] ③ The dual-axis motor 32 drives the first rotating shaft to rotate, driving the mother connecting rod 36 and the sub-connecting rod 37 connected thereto to rotate. During the movement of the sub-connecting rod 37, it can slide in the mother connecting rod 36 adaptively according to the shape of the model groove 310. The third spring design can ensure that the sub-connecting rod 37 rolls along the model groove 310 sufficiently and stably. The ball 311 at the end of the sub-connecting rod 37 rolls around the model groove 310 that is similar to the special-shaped keyway, limiting the movement trajectory of the milling cutter so that the milling cutter can accurately mill the special-shaped keyway. At the same time, the second rotating shaft rotates synchronously, and the first transmission sub-shaft 42 and the first transmission main shaft 41 on one side are driven to rotate through gear meshing. The first transmission main shaft 41 drives the second transmission main shaft 43 and the second transmission sub-shaft 44 to rotate at the same time through gears. The second transmission sub-shaft 44 causes the driven shaft to rotate with the turntable 46, and the turntable 46 drives the hitting rod 47 on one side to push the touch block 26 to move. The touch block 26 slides with the thrust plate 24, and at the same time pulls the first spring 27 to deform.

[0036] ④ The first rotating shaft and the second rotating shaft rotate one circle, the milling of the special-shaped keyway is completed, the chips and waste materials are automatically discharged from the chip discharge slot, the driving rod 47 rotates one circle to return to the original position, and pushes the thrust plate 24 to the locking position, the limit block 25 at the end of the thrust plate 24 first squeezes the limit block 8 to slide downward, and then the limit block 8 pops out under the push of the second spring 6 and blocks one side of the limit block 25, completing the force storage action;

[0037] ⑤ The milling mechanism 3 is reset under the drive of the cylinder, and the resistance block leaves the side of the power storage baffle 22. Since the position of the thrust plate 24 is locked, the loading platform 21 will slide one processing unit to the left along the guide rail under the pulling force of the first spring 27;

[0038] ⑥ Repeat the above steps, and the milling mechanism 3 performs the milling process of the keyway again.

[0039] It should be noted that the size of the transmission device 4, the number of the limit blocks 8 and the number of the force storage baffles 22 are all adjustable, and are not limited to the processing of two special-shaped keyways, and multiple keyways can be milled by adjusting various components;

[0040] In addition, the first transmission sub-shaft 42 can only slide relative to the first transmission main shaft 41 , so the two can rotate synchronously during the transmission process, and the second transmission main shaft 43 and the second transmission sub-shaft 44 are the same.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A key processing mechanism, comprising a workbench (1) and a milling mechanism (3), characterized in that: The workbench (1) is provided with a carrying assembly (2) and a transmission device (4) respectively; The carrier assembly (2) comprises a loading platform (21) slidably mounted on the top of the workbench (1), two force storage baffles (22) are fixedly arranged on the top of the loading platform (21), and a thrust plate (24) is slidably arranged inside the loading platform (21), a first spring (27) is fixedly arranged between the thrust plate (24) and the loading platform (21), a touch block (26) is welded to one side of the thrust plate (24), and a limit block (25) is welded to the end of the thrust plate (24); The milling mechanism (3) comprises a track plate (31) arranged above the workbench (1), a double-axis motor (32) is fixedly installed on the top of the track plate (31), two output ends of the double-axis motor (32) are respectively connected to a first rotating shaft and a second rotating shaft through a coupling, a mother connecting rod (36) is fixedly connected to the end of the first rotating shaft, a sub-connecting rod (37) is provided in an internal movable sleeve of the mother connecting rod (36), a ball (311) is installed at the end of the sub-connecting rod (37), a model groove (310) is opened at the bottom of the track plate (31), the ball (311) and the model groove (310) are slidably matched, and a mounting seat is fixedly connected to one side of the bottom of the sub-connecting rod (37) through a countersunk screw, a servo motor (34) is fixedly installed on the mounting seat, and a tool (35) is fixedly connected to the output end of the servo motor (34), and a resistance plate (33) corresponding to the force storage baffle (22) is welded to one side of the track plate (31); When the milling mechanism (3) completes one processing action, the transmission device (4) causes the carrier assembly (2) to slide to the left by one processing unit; The transmission device (4) comprises a first transmission main shaft (41) and a second transmission main shaft (43) rotatably mounted on one side of the workbench (1), and a connecting seat (45) fixedly connected to the loading platform (21); a first transmission sub-shaft (42) and a second transmission sub-shaft (44) are movably sleeved inside the first transmission main shaft (41) and the second transmission main shaft (43); the first transmission sub-shaft (42) and the second transmission sub-shaft (44) are rotatably mounted on one side of the track plate (31) and the connecting seat (45); A driven shaft is rotatably mounted on the connecting seat (45) via a bearing, a rotating disk (46) is provided on the outer fixed sleeve of the driven shaft, and a driving rod (47) for pushing the contact block (26) is welded on one side of the rotating disk (46); The second rotating shaft and the first transmission sub-shaft (42), the first transmission main shaft (41) and the second transmission main shaft (43), and the second transmission sub-shaft (44) and the driven shaft are all connected via gear transmission; It also includes a limit block (8) for locking the position of the limit block (25), the top side of the limit block (8) is inclined, and the limit block (8) is slidably arranged on the workbench (1); A rectangular groove (5) is provided near the end of the workbench (1), a lifting block (7) is slidably connected inside the rectangular groove (5), the lifting block (7) is fixedly connected to the limit block (8) by screws, a second spring (6) is fixedly connected to the bottom of the lifting block (7), and the other end of the second spring (6) is fixedly connected to the bottom wall of the rectangular groove (5).

2. A key processing mechanism according to claim 1, characterized in that: A slide groove (23) is provided inside the loading platform (21), the thrust plate (24) is slidably connected to the slide groove (23), and the two ends of the first spring (27) are respectively fixedly connected to one side of the thrust plate (24) and the side wall of the slide groove (23).

3. A key processing mechanism according to claim 1, characterized in that: A telescopic slot is provided inside the mother connecting rod (36), and the sub-connecting rod (37) is slidably connected to the telescopic slot. A third spring is fixed to one end of the sub-connecting rod (37), and the other end of the third spring is fixedly connected to the side wall of the telescopic slot.

4. A key processing mechanism according to claim 1, characterized in that: The top of the workbench (1) is fixed with symmetrically arranged guide rails by countersunk screws, and a chip removal slot hole penetrating the workbench (1) is provided inside, the guide rails are symmetrically arranged on both sides of the chip removal slot hole, and the loading platform (21) is slidably connected to the guide rails.

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