Mechanical tenon machine and straight tenon machining method

Abstract

The invention relates to the technical field of mortise machining, in particular to a mechanical tenon machine and a straight tenon machining method.The mechanical tenon machine comprises a rack, and a plate frame is connected to the rack in a sliding mode in the transverse direction; the spindle mechanism is used for driving the cutter to rotate; the arc motion mechanism is installed on the disc frame, and the main shaft mechanism penetrates through the arc motion mechanism and is connected with the arc motion mechanism; the linear motion mechanism is mounted on the disc rack and acts on the circular motion mechanism; the table board adjusting mechanism is mounted on the rack; the motion control mechanism is respectively connected with the linear motion mechanism and the arc motion mechanism and is arranged on the plate frame; and the driving gear motor is in transmission connection with the motion control mechanism. The mechanical tenoning machine is achieved through a pure mechanical system, specifically, pure mechanical structures such as a cam, a connecting rod and a gear are used for controlling the tool path and clearance motion, the whole machining process can be achieved without an intermittent cam divider, and the cost of production equipment is further reduced.

Description

Technical Field

[0001] This invention relates to the field of mortise and tenon processing technology, and more specifically, to a mechanical tenon machine and a method for processing single-sided tenons. Background Technology

[0002] Mortise and tenon joints are commonly used in solid wood furniture. Single-line tenons, square tenons, and round tenons are common simple tenon joints, with the single-line tenon being the most prevalent. Traditional equipment struggles to efficiently and economically produce "single-line tenons" that perfectly match the "single-round mortise," and CNC tenoning machines are expensive. Mechanical tenoning machines, compared to CNC tenoning machines, utilize a purely mechanical system. Specifically, cams, linkages, and gears control the tool path, breaking down the complex circular motion into a combination of "straight lines + semicircles" to create tenons in the wood. The core mechanisms of existing mechanical tenoning machines are linear and circular adjustment mechanisms, with the key component, an intermittent cam divider, distributing the motion. This intermittent cam divider acts as a power distributor, converting the continuous rotation of the input shaft into an intermittent "action-pause-action" motion of the output shaft. However, the cost of the intermittent cam divider is also high, still failing to meet the needs of companies controlling production equipment costs. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing mechanical tenoning machines, which require intermittent cam dividers for gap movement control, resulting in high production equipment costs. This invention provides a mechanical tenoning machine and a method for machining tenons. The mechanical tenoning machine uses a purely mechanical system, specifically cams, connecting rods, gears, and other purely mechanical structures to control the tool path and gap movement. The entire machining process can be completed without intermittent cam dividers, further reducing the cost of production equipment.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A mechanical tenoning machine is provided, including... The frame has a tray that slides laterally. A spindle mechanism, used to drive the tool to rotate, is mounted on the disc holder; An arc motion mechanism is used to drive the main shaft mechanism to achieve arc motion. It is installed on the disk frame, and the main shaft mechanism passes through and is connected to the arc motion mechanism. A linear motion mechanism is used to drive the main shaft mechanism to achieve transverse linear motion, and is mounted on the disc frame and acts on the circular motion mechanism; A table adjustment mechanism, mounted on the frame, is used to fix the workpiece to be processed. The distance and angle of the workpiece to be processed relative to the spindle mechanism can be adjusted through the table adjustment mechanism. A motion control mechanism, connected to the linear motion mechanism and the circular motion mechanism respectively, controls the movement of the linear motion mechanism and the circular motion mechanism, and is installed on the disk frame; A drive geared motor is connected to the motion control mechanism for outputting power for linear and circular motion. The motion control mechanism transmits the power output from the drive reduction motor to the linear motion mechanism and the circular motion mechanism, so that the main shaft mechanism executes the output of a straight line or a circular arc trajectory in a logical sequence.

[0005] This invention decomposes the oval tenon shape into a combination of two straight lines and two semicircles. Specifically, a drive reduction motor provides power for linear and circular motion, a table adjustment mechanism adjusts the distance and angle of the workpiece relative to the spindle mechanism, and a motion control mechanism controls the tool path and displacement speed. The circular motion mechanism drives the spindle mechanism to achieve circular motion, performing the machining of the two semicircles, and the linear motion mechanism drives the spindle mechanism to achieve transverse linear motion, performing the machining of the two straight lines. After being combined in sequence, a toolpath is formed for machining the oval tenon.

[0006] Furthermore, the motion control mechanism includes a multi-layered frame mounted on the disc frame. A drive shaft is vertically mounted in the middle of the multi-layered frame via bearings. A first driven shaft and a second driven shaft are respectively arranged on both sides of the drive shaft. Both the first and second driven shafts are vertically mounted on the multi-layered frame via bearings and extend through multiple layers. An S-cam group and an LR-cam group are fixedly fitted onto the drive shaft from bottom to top, with the S-cam group and the LR-cam group located in different layers of the multi-layered frame. An S-roller seat and an R-roller seat are fitted onto the first driven shaft from bottom to top, with the S-roller seat and the R-roller seat located in different layers of the multi-layered frame. An L-roller seat is fitted onto the second driven shaft. The S-roller seat corresponds to the S-cam group. Both the R-roller seat and the L-roller seat correspond to the LR-cam group. The drive shaft is driven by the drive reduction motor. The S-roller seat and the L-roller seat are driven by the linear motion mechanism, and the R-roller seat is driven by the circular motion mechanism. The S-cam assembly transmits power from the drive geared motor to the S-roller seat, while the LR-cam assembly transmits power from the drive geared motor to the R-roller seat and L-roller seat respectively. The R-roller seat outputs the arc segment of the tenon, the L-roller seat outputs the straight segment of the tenon, and the S-roller seat switches between workstations. This invention enables dual-station switching during tenon processing, allowing seamless connection between feeding and unloading during production. The equipment does not need to stop to wait for loading and unloading, thus improving production efficiency. Within the knowledge of those skilled in the art, the first driven wheel shaft can also be integrally formed with the S-roller seat, extending upwards and fixing the R-roller seat; the second driven wheel shaft can be integrally formed with the L-roller seat.

[0007] Furthermore, both the S-cam group and the LR-cam group are double-layer cam structures. The S-cam group includes an upper S-drive wheel and a lower S-positioning wheel, and the LR-cam group includes an upper LR-drive wheel and a lower LR-positioning wheel. The S-roller seat, the L-roller seat, and the R-roller seat each include a first layer and a second layer fixedly connected. Several pins are evenly distributed in both the first and second layers, and each pin is fitted with several freely rotatable bushings. The upper and lower bushings of the S-roller seat correspond to and cooperate with the S-drive wheel and the S-positioning wheel, respectively. The upper bushings of the R-roller seat and the L-roller seat correspond to and cooperate with the LR-drive wheel, respectively, and the lower bushings of the R-roller seat and the L-roller seat correspond to and cooperate with the LR-positioning wheel, respectively. Each bushing is driven by a cam and alternately cooperates with the cam curve, respectively controlling the S-roller seat, L-roller seat, and R-roller seat to rotate, position, and stop at the designed required angles. A double-layer cam structure alternately drives the bushings on the corresponding roller seats, thereby driving the roller seats to drive the corresponding motion mechanisms to execute motion output, realizing the control of tool path and motion displacement speed. The bushings can rotate freely relative to the pin shaft. Through the cooperation of the bushings with the cams, i.e., each driving wheel or positioning wheel, sliding friction is converted into rolling friction, which can reduce wear. Preferably, there are 4 bushings evenly distributed in a single-layer roller seat. The cooperation between two adjacent bushings and the cam curve can accurately limit the roller seat. The cam can be made with corresponding curves at the corresponding positions according to the needs of the motion trajectory. The cooperation between the cam curve and the bushing is always in a state of contact cooperation. Different curves drive the bushing to move along the curve. The movement of the bushing drives the roller seat to rotate. The rotation or stop of the roller seat and the acceleration can be controlled by the curve. The curve cooperation of the double-layer cam allows the size of the cam and roller seat to be smaller, which is a preferred implementation. At the same time, the double cam combination has an advantage that the two curves can be adjusted to simultaneously engage the roller bushings of the roller seat in opposite directions, so that there is no backlash between the roller seat and the cam when the roller seat rotates. Within the knowledge of those skilled in the art, the cam assembly can also adopt a multi-layer structure, not limited to a double layer, and the number of bushings can be changed accordingly based on actual needs.

[0008] Furthermore, the circular arc motion mechanism includes a circular arc drive assembly and a circular arc radius adjustment assembly. The circular arc drive assembly includes a meshing circular arc drive gear and a turntable. The turntable is rotatably connected to the disc frame, and the circular arc drive gear is connected to the R roller seat via a first transmission assembly. The circular arc radius adjustment assembly includes a guide groove, a main shaft slide, an adjusting screw, and an adjusting nut. The guide groove is located on the turntable. The main shaft mechanism is connected to the main shaft slide. The main shaft slide is movably connected to the adjusting screw and slidably connected to the guide groove. The adjusting nut is fixedly mounted on the turntable. The adjusting screw is also threadedly connected to the adjusting nut. Rotating the adjusting screw changes the distance between the main shaft slide and the adjusting nut, thereby changing the eccentricity between the shaft core of the main shaft mechanism and the shaft core of the turntable. The circular arc drive assembly provides driving force to drive the turntable to perform circular arc motion; the circular arc radius adjustment assembly changes the eccentricity between the shaft core of the main shaft mechanism and the shaft core of the turntable, thereby adjusting the size of the tenon end radius R.

[0009] Furthermore, the first transmission assembly includes a driving bevel gear shaft and a driven bevel gear shaft. One end of the driving bevel gear shaft is provided with a driving bevel gear, and the other end is provided with an R driven gear. The driven bevel gear is located at the end of the driven bevel gear shaft and is connected to the arc drive gear via a transmission shaft. The R roller seat is provided with an R drive gear, which meshes with the R driven gear. The driving bevel gear meshes with the driven bevel gear at the end of the driven bevel gear shaft. The first transmission assembly transmits the power from the drive reduction motor to the turntable to achieve the arc motion of the main shaft mechanism.

[0010] Furthermore, the radius adjustment assembly also includes a gear steering mechanism and a handwheel shaft. One end of the main shaft slide is perpendicularly connected to the main shaft mechanism, and the gear steering mechanism is fixedly mounted on the other end of the main shaft slide. The gear steering mechanism has an input end perpendicular to the turntable end face and is connected to the handwheel shaft. The output end of the gear steering mechanism along the radial direction of the turntable is connected to the adjusting screw. Rotating the handwheel shaft drives the adjusting screw to rotate through the gear steering mechanism, thereby changing the distance between the main shaft slide and the adjusting nut, and thus changing the eccentricity distance between the shaft core of the main shaft mechanism and the shaft core of the turntable. By acting on the handwheel shaft, the size of the tenon end circle radius R can be adjusted.

[0011] Furthermore, the linear motion mechanism includes a displacement base, and a first drive assembly, a second drive assembly, a second transmission assembly, and an L-adjustment assembly are all mounted on the displacement base. The displacement base is fixedly mounted on the disc frame. The first drive assembly includes a reinforcing shaft and a displacement arm. One end of the reinforcing shaft is connected to the S-roller seat, and the other end of the reinforcing shaft is connected to one end of the displacement arm. The other end of the displacement arm is hinged to the second transmission assembly. The second drive assembly includes an output shaft and an L-link. One end of the output shaft is drivenly connected to the L-roller seat, and the other end of the output shaft is hinged to one end of the L-link via the L-adjustment assembly. The other end of the L-link is connected to the second transmission assembly. The second transmission assembly includes a displacement gear set, which includes a first output gear. The frame is provided with an output rack in the horizontal direction, and the first output gear meshes with the output rack. Both the first drive assembly and the second drive assembly can output power through the second transmission assembly to make the disc frame and the main shaft mechanism move linearly along the frame. Both the first and second drive components are used to drive the entire disc frame to move the turntable and spindle mechanism in linear motion. The linear motion driven by the first drive component is used to switch workstations after the workpiece is processed; the linear motion driven by the second drive component is used to process the straight segment of the tenon length on the workpiece. Their functions differ. The first drive component is hinged to the second transmission component via a displacement arm, converting the circular motion of the S roller seat into linear motion; the second drive component is connected to the second transmission component via an L adjustment component, converting the circular motion of the L roller seat into linear motion.

[0012] Furthermore, the second transmission assembly also includes a first displacement plate, a displacement connecting rod seat, a displacement connecting rod, and a second displacement plate. The first displacement plate is disposed above and fixedly connected to the displacement connecting rod seat. The displacement connecting rod seat is located above the displacement connecting rod and hinged to it via a bearing. The displacement connecting rod is located above the displacement arm and hinged to it. The displacement connecting rod seat passes through the second displacement plate, and the second displacement plate and the L connecting rod are engaged via a bearing. A displacement gear seat is provided on the first displacement plate, and the displacement gear set is mounted on the first displacement plate via the displacement gear seat. The displacement gear set also includes an input gear and a displacement gear shaft. The first output gear and the input gear are both mounted on the displacement gear shaft. The second displacement plate is provided with an input rack, and the input rack meshes with the input gear. The reinforcing shaft, displacement arm, and displacement connecting rod form a crank-connecting rod mechanism, realizing the switching from circular motion to linear motion. The output shaft, L adjustment assembly, and L connecting rod also form a similar mechanism, realizing the switching from circular motion to linear motion.

[0013] Furthermore, a fixed guide rail seat is fixed to one side of the upper part of the displacement base. The fixed guide rail seat has a first guide rail pair and a second guide rail pair arranged parallel to each other. The first guide rail pair and the second guide rail pair are both composed of two guide rails and a roller strip placed in the middle. Each of the first guide rail pair and the second guide rail pair has a guide rail strip fastened to the fixed guide rail seat by screws. An adjusting guide rail seat is fixed to the other side of the upper part of the displacement base. The adjusting guide rail seat has a third guide rail pair and a fourth guide rail pair arranged parallel to each other. The first guide rail pair and the third guide rail pair are horizontally corresponding, and the second guide rail pair and the fourth guide rail pair are horizontally corresponding. Each of the third guide rail pair and the fourth guide rail pair has a guide rail strip connected to the adjusting guide rail seat by screws. The other guide rails of the first guide rail pair and the third guide rail pair are respectively fixedly installed on both sides of the bottom of the first displacement plate. The other guide rails of the second guide rail pair and the fourth guide rail pair are respectively fixedly installed on both sides of the second displacement plate.

[0014] Furthermore, the L-adjustment assembly includes an L-adjustment seat, an L-adjustment slider, an L-adjustment shaft, and an L-adjustment screw. The bottom of the L-adjustment seat is fixedly connected to the output shaft. A groove is provided inside the L-adjustment seat, and the L-adjustment slider is slidably connected to the L-adjustment seat through the groove. The L-adjustment screw is freely rotatable and passes laterally through the L-adjustment slider. One end of the L-adjustment screw passes through a threaded hole at the end of the groove of the L-adjustment seat, and a bevel gear is fixed to the other end. The L-adjustment shaft is perpendicular to the L-adjustment slider, and a freely rotatable L-adjustment bevel gear is sleeved inside the L-adjustment shaft. The L-adjustment bevel gear meshes with the bevel gear. The L-connecting rod is connected to the L-adjustment shaft through a bearing at the end away from the connection with the second displacement plate. When the L-adjustment assembly rotates, the L-connecting rod drives the second displacement plate to make reciprocating linear motion along the second guide rail pair and the fourth guide rail pair, and makes a corresponding displacement distance according to the adjusted tenon length.

[0015] Furthermore, it also includes a planetary gear set, one of the input ends of which is connected to a second driven gear shaft. A oscillating main gear is mounted on the first driven gear shaft. The oscillating main gear is connected to the other input end of the planetary gear set in sequence through two intermediate gears. The intermediate gears are fixed to a multi-layer frame by bearings and shafts and can rotate freely. The output end of the planetary gear set is fixedly connected to the output shaft.

[0016] Furthermore, the planetary gear set includes a planet carrier, with planet carrier gears on the outside of the planet carrier. The oscillating main gear drives the intermediate gear, which in turn drives the planet carrier gears. A sun gear is fixed to the center of the planet carrier by a bearing. The sun gear and the planet carrier can rotate freely relative to each other. The sun gear is connected to the second driven gear shaft. There are two double-layer planetary gears around the center of the planet carrier. The sun gear meshes with the lower gears of the two double-layer planetary gears. The output shaft is located at the center of the upper end of the planet carrier. A transmission gear is fixed to the end of the output shaft. The transmission gear meshes with the upper gears of the two double-layer planetary gears. One end of the output shaft extends out of the planet carrier and connects to the L adjustment component. By setting the sun gear and the two double-layer planetary gears, when the S roller seat rotates 180 degrees, the L adjustment component is driven by this transmission path to rotate 180 degrees synchronously. This ensures that the starting point of the cutting diameter for machining the waist circle changes with the left and right work positions, while ensuring that the deceleration section of the feed is located at the beginning of the wood processing stage.

[0017] Furthermore, the spindle mechanism includes a spindle seat and a spindle motor. The spindle motor is mounted on the disc frame, and the spindle seat passes through the turntable. A freely rotatable main cutter spindle is connected and fixed within the spindle seat via bearings. The cutter bar end of the main cutter spindle passes through the spindle slide and the turntable and extends outside the disc frame, where a cutting tool is mounted. The end of the main cutter spindle away from the cutting tool is connected to the spindle motor via a transmission pulley set. Cutting is achieved by rotating the cutting tool driven by the main cutter spindle.

[0018] The present invention also provides a method for processing a single-piece tenon, which is performed using a mechanical tenoning machine as described above, and specifically includes the following steps: The starting machining point is when the tool of the spindle mechanism moves to the left end of the right station. S1: Processing at the right workstation; The motion control mechanism controls the circular motion mechanism to drive the spindle mechanism to perform circular motion, while the spindle mechanism controls the tool rotation to perform circular arc machining in segment A; The motion control mechanism controls the linear motion mechanism to drive the spindle mechanism to perform linear motion, while the spindle mechanism controls the tool rotation to perform linear machining in segment B. The motion control mechanism controls the circular motion mechanism to drive the spindle mechanism to perform circular motion, while the spindle mechanism controls the tool rotation to perform C-segment circular arc machining; The motion control mechanism controls the linear motion mechanism to drive the spindle mechanism to perform linear motion, while the spindle mechanism controls the tool rotation to perform D-segment linear machining; S2: Switching from right workstation to left workstation; The motion control mechanism controls the linear motion mechanism to drive the spindle mechanism to perform linear motion, switch from the right station to the left station, and move the tool to the right end of the left station; S3: Machining at the left workstation; The motion control mechanism controls the linear motion mechanism to drive the spindle mechanism to perform linear motion, while the spindle mechanism controls the tool rotation to perform D-segment linear machining; The motion control mechanism controls the circular motion mechanism to drive the spindle mechanism to perform circular motion, while the spindle mechanism... Control the tool rotation to perform arc machining in segment A; The motion control mechanism controls the linear motion mechanism to drive the spindle mechanism to perform linear motion, while the spindle mechanism controls the tool rotation to perform linear machining in segment B. The motion control mechanism controls the circular motion mechanism to drive the spindle mechanism to perform circular motion, while the spindle mechanism controls the tool rotation to perform C-segment circular arc machining; S4: Switching from left workstation to right workstation; The motion control mechanism controls the linear motion mechanism to drive the spindle mechanism to perform linear motion, switch from the right station to the left station, and move the tool to the left end of the right station; S5: Determine whether the processing is complete. If yes, end the process; otherwise, return to step S1.

[0019] The processing method of the present invention not only enables the tool to switch between different workstations on the left and right, but also simplifies the path of the tool when processing at the left and right workstations, thereby improving processing efficiency.

[0020] Compared with the prior art, the beneficial effects of the present invention are: This invention not only produces oval tenons but is also more economical than CNC tenoning machines; moreover, it can process oval single-section tenons of different sizes and shapes. By decomposing the oval single-section tenon shape into a combination of two straight segments and two semicircular trajectories, and then combining them sequentially to form a toolpath required for processing the oval single-section tenon, the entire process is mechanically driven. Compared to existing mechanical tenoning machines, this invention uses a cam, connecting rod, and gear structure instead of an intermittent cam divider to control the intermittent movement. Furthermore, it combines the feed / retract mechanism with dual-station switching, improving efficiency. This invention not only solves the problem that five-disc saws and milling machines cannot process oval tenons but also ensures efficiency and is more economical than CNC tenoning machines. By controlling the toolpath, it allows processing only straight segments and can also be used to process square tenons. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the external structure of a mechanical tenoning machine according to the present invention; Figure 2 for Figure 1 Internal structure diagram; Figure 3 This is a schematic diagram of the circular arc motion mechanism and the main shaft mechanism; Figure 4 for Figure 3 Partial cross-sectional structural schematic diagram; Figure 5 This is a schematic diagram of a linear motion mechanism; Figure 6 for Figure 5 Partial cross-sectional structural schematic diagram; Figure 7 Here is a schematic diagram of the L-adjustment component; Figure 8 A schematic diagram of the motion control mechanism and the drive geared motor; Figure 9 for Figure 8 Partial cross-sectional structural schematic diagram; Figure 10 This is a schematic diagram of a planetary gear mechanism; Figure 11 This is a toolpath diagram with overlapping paths; Figure 12 This is a tool path diagram for a machining method of a tenon of the present invention; Figure 13 A simplified diagram of the crank-connecting rod motion of the L-adjustment component in the 90-degree scheme; Figure 14 This is a simplified diagram of the crank-connecting rod motion of the L adjustment component in the 180-degree scheme.

[0022] The markings in the diagram are explained below: 100. Frame; 101. Guide rail; 102. Slide; 200. Plate rack; 300. Circular arc motion mechanism; 301. Turntable; 3011. V-groove; 3012. Disc gear; 302. Limiting roller seat; 303. Roller; 304. Dovetail block; 305. Main shaft slide; 306. Gear steering gear; 3061. Handwheel shaft; 3062. Adjusting screw; 307. Digital display; 308. Adjusting nut; 309. Circular arc drive gear; 310. Bearing seat; 311. Drive shaft; 312. First coupling; 400. Linear motion mechanism; 401. Displacement base; 402. Bevel gear shaft seat; 403. Steering transverse bearing seat; 404. Driven bevel gear shaft; 405. Driving bevel gear shaft; 406. Driving bevel gear; 407. R driven gear; 408. Displacement shaft seat; 409. Reinforcing shaft; 410. Locking nut; 411. Displacement arm; 412. Displacement connecting rod; 413. Locking screw; 414. L adjusting seat; 4141. Round hole; 4142. Slide groove; 4143. Threaded hole; 415. First clamping screw; 416. L adjusting slider; 417. L adjusting screw; 418. Bevel gear; 419. L adjusting shaft; 420. L adjusting bevel gear shaft; 42 1. Counter base; 422. Digital counter; 423. L-link; 4231. Cam shaft; 424. L-adjustment assembly; 430. Fixed guide rail seat; 431. First guide rail pair; 432. Second guide rail pair; 433. Third guide rail pair; 434. Fourth guide rail pair; 435. Adjusting guide rail seat; 436. Second displacement plate; 4361. Stepped through hole; 437. Input rack; 438. First displacement plate; 439. Displacement link seat; 440. Transfer gear seat; 441. Transfer gear shaft; 4421. Input gear; 4422. First output gear; 443. Back pressure bearing; 445. Output rack; 446. Rack beam; 447. Output shaft; 500. Motion control mechanism; 501. Multi-layer frame; 5011. Opening hole; 502. Drive wheel shaft; 503. S-drive wheel; 504. S-positioning wheel; 505. LR-drive wheel; 506. LR-positioning wheel; 507. First driven wheel shaft; 508. Second driven wheel shaft; 511. S-roller seat; 512. Pin; 513. Bushing; 514. Second coupling; 515. R-roller seat; 516. R-drive gear; 517. Second clamping screw; 518. L-roller seat; 519. Oscillating main gear; 520. Planetary gear set; 521. Planet carrier; 5211. Planet carrier gear; 5212. Circular step; 522. Transition gear; 523. Sun gear; 524. Double-layer planetary gear; 526. Transmission gear; 527. Transition bearing; 600. Spindle mechanism; 601. Spindle seat; 602. Main cutter shaft; 603. Cutting tool; 604. Small pulley; 605. Large pulley; 606. High-speed flat belt; 607. First tensioning ring; 6071. Reverse thread screw; 608. Second tensioning ring; 6081. Positive thread screw; 609. Tensioning sleeve; 610. Positive thread nut; 612. Reverse thread nut; 613. Spindle motor; 614. Large motor seat; 615. Motor swing seat; 616. Tie rod; 6161. Retaining ring; 617. Spring sleeve; 6171. Sleeve step; 618. Compression spring; 700. Tabletop adjustment mechanism; 800. Drive geared motor; 801. Input driven gear; 802. Small motor base; 803. Geared motor assembly; 804. Second output gear; 900. Workpiece to be processed; L displacement represents the length of the straight segment of the tenon; left LR0 and left R1 are the two endpoints of the arc segment C in the left workstation; left L1 and left R1 are the two endpoints of the arc segment A in the left workstation; right left LR0 and right R1 are the two endpoints of the arc segment A in the right workstation; right L1 and right R0 are the two endpoints of the arc segment C in the right workstation; A and C represent the two arc segments of the tenon; B and D represent the two straight segments of the tenon; the arrows in the diagram represent the direction of the tool trajectory. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] Example 1 The following is a first embodiment of a mechanical tenoning machine according to the present invention, such as... Figure 1 and Figure 2 As shown, including The frame 100 is slidably connected to the tray 200 in the transverse direction; The spindle mechanism 600 is used to drive the tool 603 to rotate and is mounted on the disc holder 200. The circular arc motion mechanism 300 is used to drive the main spindle mechanism 600 to achieve circular arc motion. It is mounted on the disc frame 200, and the main spindle mechanism 600 passes through and is connected to the circular arc motion mechanism 300. The linear motion mechanism 400 is used to drive the spindle mechanism 600 to achieve transverse linear motion. It is mounted on the disc frame 200 and acts on the arc motion mechanism 300. The table adjustment mechanism 700 is mounted on the frame 100 and is used to fix the workpiece 900 to be processed. The distance and angle between the workpiece 900 and the spindle mechanism 600 can be adjusted through the table adjustment mechanism 700. The motion control mechanism 500 is connected to the linear motion mechanism 400 and the circular motion mechanism 300 respectively, controls the motion of the linear motion mechanism 400 and the circular motion mechanism 300, and is installed on the plate frame 200. like Figure 2 , Figure 8 The drive geared motor 800 shown is connected to the motion control mechanism 500 for outputting power for linear and circular motion. The motion control mechanism 500 transmits the power output from the drive reduction motor 800 to the linear motion mechanism 400 and the circular motion mechanism 300, so that the spindle mechanism 600 executes the linear or circular trajectory output in a logical sequence.

[0030] The drive geared motor 800 provides power for linear and circular motion. The table adjustment mechanism 700 adjusts the distance and angle between the workpiece 900 and the spindle mechanism 600. The motion control mechanism 500 controls the path and backlash of the tool 603. The circular motion mechanism 300 drives the spindle mechanism 600 to achieve circular motion and perform the machining of two semicircles. The linear motion mechanism 400 drives the spindle mechanism 600 to achieve transverse linear motion and perform the machining of two straight segments. After being combined in sequence, they form a toolpath required for machining a tenon with an oval shape.

[0031] Example 2 like Figures 1 to 10 The image shows a second embodiment of a mechanical tenoning machine according to the present invention, comprising as follows: Figure 2 A guide rail 101 is horizontally mounted on the upper plane of the frame 100. Several slides 102 are provided on the guide rail 101. A disk frame 200 is fixedly connected to the slide 102 and can slide along the guide rail 101.

[0032] like Figure 3 and Figure 4The circular arc motion mechanism 300 includes a circular arc drive assembly and a circular arc radius adjustment assembly. The circular arc drive assembly includes a meshing circular arc drive gear 309 and a turntable 301. The circular arc drive gear 309 is connected to the R roller seat 515 through a first transmission assembly. The circular arc radius adjustment assembly includes a guide groove, a main shaft slide 305, an adjusting screw 3062, and an adjusting nut 308. The turntable 301 is vertically disposed on one side of the disc frame 200. The outer diameter of the turntable 301 is provided with a V-groove 3011. Several limiting roller seats 302 are distributed around the circumference of the turntable 301. The limiting roller seats 302 are fixedly connected to the disc frame 200. Rollers 303 are provided on the limiting roller seats 302. The rollers 303 are embedded in the V-groove 3011 of the turntable 301, so that the turntable 301 can rotate freely but cannot move axially. Two dovetail blocks 304 are fixedly connected to the turntable 301 facing the plate frame 200, forming a dovetail groove structure with the turntable 301. A main shaft slide 305 is embedded in the guide groove and can slide along the direction of the guide groove. One end of the main spindle slide 305 is vertically fixed to the main spindle mechanism 600, and the other end of the main spindle slide 305 is fixed to a 90-degree gear steering device 306. The input end of the gear steering device 306, perpendicular to the end face of the turntable 301, is connected to a handwheel shaft 3061. A digital display 307 is mounted on the handwheel shaft 3061. The output end of the gear steering device 306, along the radial direction of the turntable 301, is connected to an adjusting screw 3062. An adjusting nut 308 is mounted on the adjusting screw 3062 and is fixedly connected to the turntable 301. Rotating the handwheel shaft 3061 drives the adjusting screw 3062 to rotate through the gear steering device 306, which can change the distance between the main spindle slide 305 and the adjusting nut 308, thereby changing the eccentricity distance between the shaft core of the main spindle mechanism 600 and the shaft core of the turntable 301, and adjusting the size of the tenon end circle radius R.

[0033] The spindle mechanism 600 includes a spindle seat 601, in which a freely rotatable main cutter spindle 602 is fixedly connected by bearings. The cutter bar end of the main cutter spindle 602 passes through the spindle slide 305 and the turntable 301 and extends outside the disc frame 200. A cutting tool 603 is mounted on the main cutter spindle 602. The end of the main cutter spindle 602 away from the cutting tool 603 is connected to the spindle motor 613 through a transmission pulley set.

[0034] The spindle seat 601 has a grooved first circular step at the end away from the spindle slide 305; a freely rotatable first tensioning ring 607 is fitted on the first circular step, and a reverse-threaded screw 6071 is provided on the outer radial side of the first tensioning ring 607. A freely rotatable main cutter spindle 602 is fixed inside the spindle seat 601 by bearings. The cutter bar end of the main cutter spindle 602 extends out of the disc frame 200 through the through hole of the spindle slide 305 and the corresponding waist-shaped hole of the turntable 301 to install the cutter 603. A small pulley 604 is fixed at the extension end of the main cutter spindle 602 at the first tensioning ring 607. The large motor seat 614 has a grooved second circular step, and a freely rotatable second tensioning ring 608 is fitted on the second circular step, and a spur threaded screw 6081 is provided on the outer radial side of the second tensioning ring 608. A tensioning sleeve 609 with positive and negative threads at both ends is fitted on the spur threaded screw 6081. The negative thread end of the tensioning sleeve 609 is fitted on the first tensioning ring 607 and the spur thread end of the tensioning sleeve 609 is fitted on the second tensioning ring 608 and the spur threaded screw 6081. Rotating the tensioning sleeve 609 can adjust the center distance between the first tensioning ring 607 and the second tensioning ring 608. The tensioning sleeve 609 is fitted with a corresponding positive thread nut 610 and a negative thread nut 612 at both ends for fastening the tensioning sleeve 609.

[0035] A large pulley 605 is fixed to the outward extension section of the shaft of the main spindle motor 613, which passes through the second circular step. A high-speed flat belt 606 is fitted onto the large pulley 605, and this high-speed flat belt 606 is also fitted onto the small pulley 604. The rotation of the large pulley 605 drives the high-speed flat belt 606, which in turn drives the small pulley 604 to rotate. The rotating tensioning sleeve 609 can tension or loosen the flat belt. The large pulley 605, the high-speed flat belt 606, and the small pulley 604 together form a transmission pulley assembly.

[0036] The main spindle motor 613 is located below the disc frame 200 and fixed to the large motor base 614. One end of the large motor base 614 is hinged to the motor swing seat 615 via a bearing, and the motor swing seat 615 is fixed to the disc frame 200. A pull rod 616 is hinged to the middle of the large motor base 614 near the hinge end. The other end of the pull rod 616 passes through a spring sleeve 617, which is hinged upward to the bottom surface of the disc frame 200. The tail end of the pull rod 616 has a retaining ring 6161, and the spring sleeve 617 has a sleeve step 6171. A compression spring 618 simultaneously abuts against the retaining ring 6161 and the sleeve step 6171, forcing the pull rod 616 to retract into the spring sleeve 617, generating an upward force to balance the weight of the main spindle motor 613, the large motor base 614, the main spindle base 601, the main tool spindle 602, and other related parts.

[0037] The arc drive gear 309 is located on the side of the turntable 301, and meshes with the disc teeth 3012 located next to the V-groove 3011 on the turntable 301. The arc drive teeth are fixed to one end of the transmission shaft 311, and the other end of the transmission shaft 311 extends a distance after passing through the bearing seat 310 fixed on the disc frame 200. The bearing seat 310 can be adjusted up and down along the side of the disc frame 200 to adjust the center distance between the arc drive gear 309 and the turntable 301, thereby adjusting the meshing clearance between the arc drive gear 309 and the disc teeth 3012.

[0038] like Figures 5 to 7 The first transmission assembly includes a drive bevel gear shaft 405 and a driven bevel gear shaft 404. One end of the drive bevel gear shaft 405 is provided with a drive bevel gear 406, and the other end is provided with an R driven gear 407. The end of the driven bevel gear shaft 404 is provided with a driven bevel gear. The driven bevel gear is connected to the arc drive gear 309 through a coupling 312 and a transmission shaft 311. The R roller 303 seat 302 is provided with an R drive gear 516, which meshes with the R driven gear 407. The drive bevel gear 406 meshes with the driven bevel gear of the driven bevel gear shaft 404.

[0039] The driven bevel gear shaft 404 passes through the linear motion mechanism 400, and the driving bevel gear shaft 405 is located at the bottom of the linear motion mechanism 400. The linear motion mechanism 400 is located on the other side of the disk frame 200 relative to the fixed turntable 301. The linear motion mechanism 400 includes a displacement base 401, and a first drive assembly, a second drive assembly, a second transmission assembly, and an L adjustment assembly 424 are all mounted on the displacement base 401. The displacement base 401 is fixedly mounted on the disk frame 200. The first drive assembly includes a reinforcing shaft 409 and a displacement arm 411. The second drive assembly includes an output shaft 447 and an L connecting rod 423. The second transmission assembly includes a displacement gear set, a first displacement plate 438, a displacement connecting rod seat 439, a displacement connecting rod 412, and a second displacement plate 436. The displacement gear set includes a first output gear 4422, an input gear 4421, and a displacement gear shaft 441. Specifically, a bevel gear seat 402 is fixed to the lower left end of the displacement base 401, and a steering transverse bearing seat 403 is fixed to the upper flange of the bevel gear seat 402. The driven bevel gear 404 is located inside the steering transverse bearing seat 403 and is connected to the steering transverse bearing seat 403 through a bearing. The driven bevel gear 404 can rotate freely. One end of the driven bevel gear 404 passes laterally through the clearance groove of the displacement base 401 and is connected to the extension section of the drive shaft 311 through the first coupling 312. The driven bevel gear is located at the other end of the driven bevel gear 404. The sleeve end of the bevel gear seat 402 extends downward through the displacement base 401 and the disc frame 200. The driving bevel gear 405 is located inside the sleeve and is connected to the sleeve through a bearing. The driving bevel gear 405 can rotate freely, and the driving bevel gear 406 on the driving bevel gear 405 meshes with the driven bevel gear on the driven bevel gear 404. The driven gear 407 is fixedly connected to the lower end of the driving bevel gear shaft 405.

[0040] A displacement shaft seat 408 is fixed in the middle of the lower part of the displacement base 401. Two bearings are provided at the upper and lower ends of the inner hole of the displacement shaft seat 408. A reinforcing shaft 409 passes through the inner holes of the two bearings. The upper step of the reinforcing shaft 409 is locked onto the upper bearing, and the lower end passes through the lower bearing and is locked with a locking nut 410 at the thread. By tightening the locking nut 410, the preload of the two bearings can be adjusted to eliminate the gap. The displacement arm 411 is keyed to the upper step 1 of the reinforcing shaft 409. The other end of the displacement arm 411 is hinged to a displacement connecting rod 412 through a bearing. A cylindrical section continues to extend from the thread at the lower end of the reinforcing shaft 409.

[0041] The lower right end of the displacement base 401 has an open through hole, and a locking screw 413 is located on the side. The L adjustment assembly 424 is located above the through hole. The L adjustment assembly 424 includes an L adjustment seat 414, an L adjustment slider 416, an L adjustment shaft 419, and an L adjustment screw 417. The lower end of the L adjustment seat 414 has an open circular hole 4141, and a first clamping screw 415 is provided on the side. A slide groove 4142 is provided above the L adjustment seat 414, and the L adjustment slider 416 can slide along the slide groove 4142. The L adjustment screw 417 is located on the L adjustment slider 416 and is arranged laterally. The L adjustment screw 417 has axial limit and can rotate freely. One end of the L adjustment screw 417 passes into the threaded hole 4143 below the slide groove 4142 of the L adjustment seat 414, and the other end is fixed with a bevel gear 418. The L-adjustment shaft 419 is located above the L-adjustment slider 416 and is vertically fixed to the L-adjustment slider 416. The L-adjustment shaft 419 has a through hole, and a freely rotatable L-adjustment bevel gear shaft 420 is fitted inside it. The bevel teeth at the lower end of the L-adjustment bevel gear shaft 420 mesh with the bevel gear 418 on the L-adjustment screw 417. Rotating the L-adjustment bevel gear shaft 420 drives the bevel gear 418 to rotate the L-adjustment screw 417, which in turn drives the L-adjustment slider 416 to move along the slide groove 4142, thereby changing the axial distance between the L-adjustment shaft 419 and the L-adjustment seat 414, thus achieving the purpose of adjusting the tenon length.

[0042] A counter base 421 is fixed above the L-adjustment shaft 419, on which a digital counter 422 is mounted. The inner hole of the counter is fitted onto the shaft extending upward from the L-adjustment bevel gear shaft 420. The L-adjustment bevel gear shaft 420 has an external hexagonal end protruding above the digital counter 422 for easy adjustment by rotating it with a wrench. The L-connecting rod 423 is located in the middle section of the L-adjustment shaft 419 and is hinged to the L-adjustment shaft 419 by a bearing. The other end of the L-connecting rod 423 has a convex shaft 4231, on which a bearing is fitted.

[0043] A fixed guide rail seat 430 is fixed to one side of the upper part of the displacement base 401. The fixed guide rail seat 430 has a first guide rail pair 431 and a second guide rail pair 432 arranged parallel to each other, one above the other. Both the first guide rail pair 431 and the second guide rail pair 432 are composed of two guide rails and a roller strip placed in the middle. Each of the first guide rail pair 431 and the second guide rail pair 432 has a guide rail strip fastened to the fixed guide rail seat 430 by screws. An adjusting guide rail seat 435 is fixed to the other side of the upper part of the displacement base 401. The adjusting guide rail seat 435 also has a third guide rail pair 433 and a fourth guide rail pair 434 arranged parallel to each other, one above the other. Each of the third guide rail pair 433 and the fourth guide rail pair 434 has a guide rail strip connected to the adjusting guide rail seat 435 by screws. The first guide rail pair 431 and the third guide rail pair 433 are horizontally aligned, and the second guide rail pair 432 and the fourth guide rail pair 434 are horizontally aligned. The first guide rail pair 431, the second guide rail pair 432, the third guide rail pair 433, and the fourth guide rail pair 434 are all roller guide rail pairs.

[0044] The second displacement plate 436 is located between the second guide rail pair 432 and the fourth guide rail pair 434. Both sides of the second displacement plate 436 are fixedly connected to the other guide rails of the second and fourth guide rail pairs 432 and 434, allowing the second displacement plate 436 to slide along the roller guide rail pair. An input rack 437 is fixedly attached to the upper side of the second displacement plate 436. A stepped through hole 4361 is located at the right end of the second displacement plate 436, which engages with a bearing fitted on the convex shaft 4231 of the L-connecting rod 423. When the L-adjusting component 424 rotates, the L-connecting rod 423 drives the second displacement plate 436 to reciprocate linearly along the roller guide rail pair. The L-connecting rod 423 converts the rotational motion of the L-adjusting component 424 into linear motion, and makes a corresponding displacement distance according to the adjusted tenon length.

[0045] The first displacement plate 438 is located between the first guide rail pair 431 and the third guide rail pair 433. The two sides of the first displacement plate 438 are fixedly connected to the guide rails on the other side of the corresponding guide rail pair, so that the first displacement plate 438 can slide along the roller guide rail pair. The displacement connecting rod seat 439 is located on the lower left side of the first displacement plate 438. The displacement connecting rod seat 439 is fixedly connected to the first displacement plate 438. The displacement connecting rod seat 439 is hinged to the displacement connecting rod 412 through a bearing, so that the first displacement plate 438 is driven by the displacement connecting rod 412 to make reciprocating linear motion along the roller guide rail pair. The rotational motion of the displacement arm 411 is converted into linear motion through the displacement connecting rod 412.

[0046] The displacement gear set is installed on the first displacement plate 438. The displacement gear set has a displacement gear seat 440. The displacement gear seat 440 has a through hole with a step in the middle. Bearings are installed above and below the step in the through hole. The displacement gear shaft 441 is sleeved in the bearing. The first output gear 4422 and the input gear 4421 are fixed to the two ends of the displacement gear shaft 441 and rotate together. The end of the displacement gear seat 440 is fixedly connected to the back pressure bearing 443 facing upward. It can be moved and adjusted along the waist-shaped hole opened at the end of the displacement gear seat 440.

[0047] The input gear 4421 located below the displacement gear set meshes with the input rack 437 on the second displacement plate 436, and the first output gear 4422 above meshes with an output rack 445. The output rack 445 is fixedly connected to the frame 100 through the rack beam 446. The back pressure bearing 443 presses on the back of the output rack 445 to ensure the meshing clearance between the long rack and the first output gear 4422 above.

[0048] like Figures 8 to 10The motion control mechanism 500 is located below the bottom of the other side of the disc frame 200 relative to the fixed turntable 301. The motion control mechanism 500 includes an upward-opening multi-layer frame 501, which is fixedly connected to the bottom surface of the disc frame 200. A drive wheel shaft 502 is vertically fixed to the middle bearing of the multi-layer frame 501. The drive wheel shaft 502 is fixedly fitted with an S cam group and an LR cam group from bottom to top, which are located in different layers of the multi-layer frame 501. The S cam group is a double-layer cam structure with an upper S drive wheel 503 and a lower S positioning wheel 504. The LR cam group is also a double-layer cam structure with an upper LR drive wheel 505 and a lower LR positioning wheel 506. The drive wheel shaft 502 is connected to the drive reduction motor 800. The lower end of the drive wheel shaft 502 extends with a shaft that passes through all layers of the frame and extends below the frame. An input driven gear 801 is fixed on the shaft. A small motor base 802 is fixed to the bottom of the multi-layer frame 501. A geared motor assembly 803 is fixed on the small motor base 802. The geared motor assembly 803 has a second output gear 804 that meshes with the input driven gear 801.

[0049] On the lower left side of the frame of the drive wheel axle 502, corresponding to the S cam group, there is an S roller seat 511. Several pins 512 are evenly distributed on the upper and lower layers of this S roller seat 511, each pin 512 fitted with a freely rotatable bushing 513. The upper and lower bushings 513 respectively cooperate with the upper S drive wheel 503 and the lower S positioning wheel 504, alternatingly cooperating with the cam curve under cam drive, thereby controlling the S roller seat 511 to rotate and stop at the designed required angle. This S roller seat 511 is connected to the multi-layer frame 501 via bearings, allowing free rotation but restricting axial freedom. A first driven wheel axle 507 extends upwards, passing through all layers of the cabinet and extending above the frame, and is fixedly connected to the threaded cylindrical section of the reinforcing shaft 409 via a second coupling 514.

[0050] On the upper left frame of the drive wheel shaft 502, corresponding to the LR cam group, there is an R roller seat 515. This R roller seat 515 also has several pins 512 evenly distributed in two layers, each pin 512 fitted with a freely rotatable bushing 513. The upper and lower bushings 513 respectively cooperate with the upper LR drive wheel 505 and the lower LR positioning wheel 506, driven by the two cams, alternately cooperating with the cam curves, thereby controlling the R roller seat 515 to rotate and stop at the designed required angle. An R drive gear 516 is fixed to the upper end of the R roller seat 515, meshing with the R driven gear 407 at the lower end of the drive bevel gear shaft 405. The upper horizontal plate of the multi-layer frame 501 has an opening hole 5011 on the right end and a second clamping screw 517 on the side. The opening hole 5011 fits onto the sleeve end of the bevel gear shaft seat 402. Tightening the second clamping screw 517 adjusts the meshing clearance between the R drive gear 516 and the R driven gear 407. The R roller seat 515 is fitted onto the first driven wheel shaft 507 extending upward from the S roller seat 511 via a combined bearing, allowing it to rotate freely but restricting its axial degree of freedom.

[0051] On the upper layer of the frame to the right of the drive wheel axle 502, there is an L-roller seat 518. Several pins 512 are evenly distributed on the upper and lower layers of this L-roller seat 518. Each pin 512 is fitted with a freely rotatable bushing 513. The upper and lower bushings 513 respectively cooperate with the upper LR drive wheel 505 and the lower LR positioning wheel 506, alternatingly driven by a cam to engage with the cam curve, thereby controlling the L-roller seat 518 to rotate and stop at the designed required angle. The L-roller seat 518 is connected to the multi-layer frame 501 via bearings, allowing free rotation but restricting axial freedom. A second driven wheel axle 508 extends upwards, passing through all layers of the cabinet and extending above the frame.

[0052] The table adjustment mechanism 700 is located on the frame 100 and is positioned opposite the main cutter spindle 602 on the side where the tool 603 is mounted. The frame 100 is equipped with a slide rail. There are two table adjustment mechanisms 700 arranged side-by-side. Each table adjustment mechanism 700 can be individually adjusted by moving left and right along the slide rail. The table surface of each table adjustment mechanism 700 can be adjusted up, down, left, and right, and can be tilted vertically at various angles. A template on the table surface allows for tilting along the table plane. The workpiece 900 to be processed is adjusted accordingly in terms of up / down, left / right, and angle according to actual processing requirements. The workpiece 900 is clamped and fixed before being processed by the tool 603.

[0053] Example 3 The following is a third embodiment of a mechanical tenoning machine according to the present invention. This embodiment is similar to embodiment 2, except that, as Figure 10As shown, it also includes a planetary gear set 520, which is mounted on the second driven gear shaft 508. A swinging main gear 519 is mounted on the first driven gear shaft 507. The swinging main gear 519 meshes with the planetary gear set 520 in sequence through two transition gears 522. The transition gears 522 are fixed to the multi-layer frame 501 by bearings and shaft cores and can rotate freely. The output end of the planetary gear set 520 is connected to the output shaft 447.

[0054] Specifically, the oscillating main gear 519 is located in the uppermost open layer of the multi-layer frame 501. The oscillating main gear 519 is sleeved and fixed on the first driven wheel shaft 507 extending above the frame from the S roller seat 511. The planetary gear set 520 is located at the corresponding position of the L roller seat 518 in the uppermost open layer of the multi-layer frame 501. The planetary transmission set has a planet carrier 521. The planet carrier 521 is equipped with a planet carrier gear 5211 on its outside. There are two transition gears 522 between the oscillating main gear 519 and the planet carrier gear 5211, which mesh with them. The transition gears 522 are fixed to the multi-layer frame 501 through bearings and shafts and can rotate freely. The oscillating main gear 519 drives the transition gears 522 and then drives the planet carrier gear 5211. A sun gear 523 is fixed to the center of the planetary carrier 521 of the planetary transmission assembly by a bearing. The sun gear 523 and the planetary carrier 521 can rotate freely relative to each other. The sun gear 523 is connected to the second driven gear shaft 508. There are two double-layer planetary gears 524 around the center of the planetary carrier 521, and the sun gear 523 meshes with its lower layer teeth. An output shaft 447 that can rotate freely is fixed to the center of the upper end of the planetary carrier 521 by a transition bearing 527. A transmission gear 526 is fixed to the lower end of the output shaft 447 and meshes with the upper layer teeth of the double-layer planetary gears 524. The upper end of the output shaft 447 extends beyond the planetary carrier 521. The upper end of the planetary carrier 521 has a first circular step that extends through the disk frame 200. A bearing is fitted on the first circular step. The bearing is placed in the open through hole at the lower right end of the displacement base 401 and is locked and held in place by the side locking screw 413. The upper extension of the output shaft 447 is embedded in the lower end of the L-adjustment seat 414, which has an open circular hole 4141. It is then held by the first clamping screw 415 to form a fixed connection.

[0055] In this embodiment, the operating principle is as follows: The second output gear 804 of the geared motor group 803 drives the drive wheel shaft 502 and the S cam group and LR cam group to rotate as a whole through the input driven gear 801.

[0056] The S-cam group intermittently drives the S-roller seat 511 to rotate and rotates as a whole with the reinforcing shaft 409, which in turn drives the displacement arm 411 to rotate 180 degrees. The rotational motion of the displacement arm 411 is converted into the reciprocating linear motion of the first displacement plate 438 along the direction of the guide rail pair by the displacement connecting rod 412.

[0057] The LR cam group intermittently drives the R roller seat 515 to rotate. The R drive gear 516 on the R roller seat 515 drives the R driven gear 407. The R driven gear 407 drives the turntable 301 to rotate 180 degrees through a series of transmissions, including the drive bevel gear shaft 405, the drive bevel gear 406, the driven bevel gear shaft 404, the transmission shaft 311, and the arc drive gear 309.

[0058] The LR cam assembly intermittently drives the L roller seat 518 to rotate. The L roller seat 518 receives input from the sun gear 523 of the planetary gear set 520, and after being changed by the planetary gear set 520, it outputs from the output shaft 447 of the planetary gear set 520 to drive the L adjusting component 424 to rotate. The rotational motion of the L adjusting component 424 is converted into the reciprocating linear motion of the second sliding block along the guide rail pair via the L connecting rod 423.

[0059] The S-roller seat 511 drives the transition gear 522 via the swinging main gear 519 mounted on the first driven wheel shaft 507 above the extended frame. Input from the planet carrier 521 of the planetary gear set 520, the gears are changed by the planetary gear set 520, and output from the output shaft 447 of the planetary gear set 520, driving the L-adjustment component 424 to rotate. The L-connector 423 converts the rotational motion of the L-adjustment component 424 into the reciprocating linear motion of the second L-displacement slider along the guide rail pair. When the S-roller seat 511 rotates 180 degrees, the L-adjustment component 424, driven by this transmission path, also rotates 180 degrees synchronously, ensuring that the starting point of the cutting diameter for machining the waist-shaped section changes depending on the left or right work position, while simultaneously ensuring that the deceleration section of the feed is located at the very beginning of the wood processing stage.

[0060] The input gear 4421 of the displacement gear set on the first displacement plate 438 meshes with the input rack 437 on the second displacement plate 436. When the second L-displacement slide plate is stationary and the first displacement plate 438 moves relative to the second displacement plate 436, the displacement gear set moves with the first displacement plate 438 and is driven to rotate by the input rack 437. The first output gear 4422 on the displacement gear set drives the output rack 445 to move linearly. The linear movement distance of the output rack 445 is a multiple of the movement distance of the first displacement plate 438. This multiple can be changed by changing the ratio of the two gears in the displacement gear set. In this embodiment, the ratio of the teeth of the input gear 4421 to the first output gear 4422 is 1:1. Therefore, according to the multiple characteristic of the gear mechanism, the movement distance of the output rack 445 is twice the movement distance of the first displacement plate 438.

[0061] When the first displacement plate 438 remains stationary, and the second displacement plate 436 moves relative to the first displacement plate 438, the input rack 437 on the second displacement plate 436 drives the displacement gear set to rotate. The first output gear 4422 on the displacement gear set drives the output rack 445 to move linearly. The linear movement distance of the output rack 445 is proportional to the movement distance of the second displacement plate 436. This ratio can be changed by altering the ratio of the two gears in the displacement gear set.

[0062] Since the output rack 445 is fixed on the frame 100, this motion is converted into the movement of the drive disc frame 200 as a whole along the guide rail 101.

[0063] When the first displacement plate 438 and the second displacement plate 436 move simultaneously, the final distance can be obtained by adding or subtracting them according to the proportion and direction of their individual movements.

[0064] In this embodiment, the specific motion logic is as follows: like Figure 13 The S-displacement starts simultaneously with the L-displacement, driven by the planetary carrier 521 of the planetary gear set 520. This drives the tool 603 to move to the right station and decelerate to the right LR0 point. The R-displacement starts, driving the tool 603 around the semicircle to the highest point, right R1. The L-displacement starts, driving the tool 603 to the right L1 point. The R-displacement starts, driving the tool 603 around the semicircle back to the lowest point, right R0. The L-displacement starts again, driving the tool 603 back to the right LR0 point. Simultaneously, the S-displacement and the L-displacement, driven by the planetary carrier 521 of the planetary gear set 520, start, driving the tool 603 to the left LR0 point. The L-displacement starts, driving the tool 603 to the left L1 point. The R-displacement starts, driving the tool 603 around the semicircle to the highest point, left R1. The L-displacement starts again, driving the tool 603 back to the left L1 point. The R-displacement starts again, driving the tool 603 around the semicircle back to the lowest point, left LR0. Then, the S-displacement and L-displacement start again simultaneously, completing the entire motion cycle. The sequence of L and R movements differs between the left and right stations.

[0065] Because both S-displacement and L-displacement convert circular motion into linear motion through a connecting rod, their velocity curves are cosine curves. Each displacement segment smoothly accelerates and decelerates without impact. The deceleration and stopping segment of the S-displacement coincides with the initial cutting segment of the tool 603 into the wood. This deceleration approach is more conducive to protecting the tool 603 and improving wood processing. The velocity curve of the L-displacement is more conducive to achieving a better tenon surface finish.

[0066] During S-position shifting, L-position shifting starts simultaneously to switch the starting points of the tool diameter on the left and right workstations at different ends of the waist circle. This is more beneficial for machining and improves efficiency. If, during S-position shifting, L-position shifting is not simultaneously started via planetary transmission, then... Figure 11As shown, there will always be a station where the initial feed segment overlaps with the L-shaped linear segment. When tool 603 moves from the right station to the left station, its path reaches the left LR0 position. The starting point of tool 603 cutting the wood is near the middle of the S-displacement. This lack of deceleration during feed can easily damage tool 603 and cause the wood to crack. Furthermore, the initial feed speed of the L-shaped linear machining segment is too high because it is near the middle of the S-displacement, resulting in a decrease in the surface quality of the machined wood. Since the entire motion is cyclical, there will be a section of the L-shaped linear stroke that is idle, which is detrimental to both machining and efficiency.

[0067] Example 4 This embodiment describes a method for machining a single-piece tenon, using a mechanical tenoning machine as described above. The specific steps include: The starting machining point is the left end of the right station where the tool 603 of the spindle mechanism 600 moves. S1: Processing at the right workstation; The motion control mechanism 500 controls the circular motion mechanism 300 to drive the spindle mechanism 600 to perform circular motion, while the spindle mechanism 600 controls the tool 603 to rotate to perform the A-segment circular machining. The motion control mechanism 500 controls the linear motion mechanism 400 to drive the spindle mechanism 600 to perform linear motion, while the spindle mechanism 600 controls the tool 603 to rotate to perform linear machining in segment B. The motion control mechanism 500 controls the circular motion mechanism 300 to drive the spindle mechanism 600 to perform circular motion, while the spindle mechanism 600 controls the tool 603 to rotate to perform C-segment circular arc machining. The motion control mechanism 500 controls the linear motion mechanism 400 to drive the spindle mechanism 600 to perform linear motion, while the spindle mechanism 600 controls the tool 603 to rotate to perform D-segment linear machining; S2: Switching from right workstation to left workstation; The motion control mechanism 500 controls the linear motion mechanism 400 to drive the spindle mechanism 600 to perform linear motion, and performs the switch from the right station to the left station. The tool 603 moves to the right end of the left station. S3: Machining at the left workstation; The motion control mechanism 500 controls the linear motion mechanism 400 to drive the spindle mechanism 600 to perform linear motion, while the spindle mechanism 600 controls the tool 603 to rotate to perform D-segment linear machining; The motion control mechanism 500 controls the circular motion mechanism 300 to drive the main spindle mechanism 600 to perform circular motion; At the same time, the spindle mechanism 600 controls the rotation of the tool 603 to perform arc machining in segment A; The motion control mechanism 500 controls the linear motion mechanism 400 to drive the spindle mechanism 600 to perform linear motion, while the spindle mechanism 600 controls the tool 603 to rotate to perform linear machining in segment B. The motion control mechanism 500 controls the circular motion mechanism 300 to drive the spindle mechanism 600 to perform circular motion, while the spindle mechanism 600 controls the tool 603 to rotate to perform C-segment circular arc machining. S4: Switching from left workstation to right workstation; The motion control mechanism 500 controls the linear motion mechanism 400 to drive the spindle mechanism 600 to perform linear motion, and performs the switch from the right station to the left station. The tool 603 moves to the left end of the right station. S5: Determine whether the processing is complete. If yes, end the process; otherwise, return to step S1.

[0068] The toolpath diagram in this embodiment is shown below. Figure 12 Because the cutting direction of the tool used in this invention determines that the tool path for machining the waist circle is clockwise, in the sequence ABCD, if the tool path is not optimized, then at one of the two stations, there will inevitably be a section of tenon length with the tool diameter D overlapping the shifting path. Figure 13 The issue is that segment D of the left workstation overlaps with the path of the moving workstation. Since the tool is constantly rotating and cutting, this overlap results in wasted effort and is detrimental to efficiency.

[0069] The toolpaths are optimized to eliminate overlap. The starting point of the toolpath for the right station is the right LR0 at the left end of the tenon, and the toolpath sequence is ABCD. The starting point of the toolpath for the left station is the left LR0 at the right end of the tenon, and the toolpath sequence for the left station is DABC. This will prevent the problem of path overlap.

[0070] The center of the crank movement of the L-adjustment component 424 follows the movement of the entire chainring. If the displacement distance is S, then the center of the crank also moves a distance of S.

[0071] To achieve the function of switching between left and right workstations, the crank movement and stop position of the L adjustment component 424 can be achieved in two ways: See Figure 13 90-degree solution: When the tool moves to the right station, the tool diameter sequence is ABCD. When machining the tenon begins, the L adjustment component 424 crank is at 90°. After the tool diameter completes the A segment of the arc, the L adjustment component 424 crank rotates from 90° to 180° and stops, driving the entire system to complete the B segment of the stroke. Then, after the C segment of the arc, the L adjustment component 424 crank continues to rotate from 180° to 270° and stops, driving the entire system to complete the D segment of the stroke.

[0072] Once the oval parting process at the right workstation is complete, the shift S is activated, and the machine moves to the left workstation. When the tool moves to the left station, the tool diameter sequence is DABC. When machining the tenon begins, the L adjustment component 424 crank is at 270°. The L adjustment component 424 crank rotates from 270° to 0° and then stops, driving the whole system to complete the D segment stroke; then after connecting to the A segment arc, the L adjustment component 424 crank rotates from 0° to 90° and then stops, driving the whole system to complete the B segment stroke; then the C segment arc is connected.

[0073] Once the oval parting process at the left workstation is completed, the shift S is activated, and the machine moves to the right workstation. This process is repeated continuously.

[0074] The 90-degree scheme works because the crank stop points of the L-adjustment component 424 (90° and 270°) overlap with the crank center on the X-axis. Furthermore, the directions from 0° to 90° and 90° to 180° align with segment B, and the directions from 180° to 270° and 270° to 0° align with segment D. Different tenon lengths are selected for different left and right positions, allowing for different reciprocating angles. Therefore, it does not require any repositioning between left and right positions. The tenon length is equal to the radius of the crank path circle.

[0075] See Figure 14 180-degree solution: When the tool moves to the right station, the tool diameter sequence is ABCD. When machining the tenon begins, the L adjustment component 424 crank is at 0°. After the tool diameter completes the A segment of the arc, the L adjustment component 424 crank rotates from 0° to 180° and then stops, driving the entire system to complete the B segment of the stroke. Then, after the C segment of the arc, the L adjustment component 424 crank continues to rotate from 180° to 0° and then stops, driving the entire system to complete the D segment of the stroke.

[0076] Once the oval parting process at the right workstation is complete, the shift S is activated, and the machine moves to the left workstation. When the tool moves to the left station, the tool diameter sequence is DABC. When starting to machine the tenon, the L adjustment component 424 crank is at 180°. The L adjustment component 424 crank rotates from 180° to 0° and then stops, driving the whole to complete the D segment stroke; then after the A segment arc, the L adjustment component 424 crank rotates from 0° to 180° and then stops, driving the whole to complete the B segment stroke; then the C segment arc is connected.

[0077] Once the oval parting process at the left workstation is completed, the shift S is activated, and the machine moves to the right workstation. This process is repeated continuously.

[0078] Because the left and right positions have different requirements for the starting position of the crank of the L adjustment component 424, one is 0° and the other is 180°, the L adjustment component 424 is required to complete the rotation from 0° to 180° or from 180° to 0° while shifting, that is, the left and right reversal relative to the center of the crank.

[0079] The 180-degree scheme uses the L-adjustment component 424, where the crank stop points 0° and 180° are located on opposite sides of the crank's center on the X-axis. Therefore, the 0°–180° direction aligns with segment B, and the 180°–0° direction aligns with segment D. Different crank start points are selected depending on the left or right position. Thus, it requires a reversal action when moving between left and right positions. The tenon length is equal to the diameter of the crank path circle. Because the L-adjustment component 424's crank stop points 0° and 180° are located on opposite sides of the crank's center on the X-axis, after reversing direction, the displacement distance is equal to the original displacement distance minus the diameter of the crank path circle, which is the tenon length.

[0080] Compared to the 90-degree method, the 180-degree method uses a tenoning machine with an added planetary gear set 520, while the 90-degree method does not. The advantages of the former over the latter are as follows: 1. Because the crank of the L-adjustment assembly 424 stops at 0° and 180°, the clearance of the connecting parts from the L-roller seat to the L-adjustment assembly 424 is reduced geometrically. Therefore, the precision requirements of the parts are greatly reduced, the processing is simpler, and the cost is lower.

[0081] 2. Because the stop positions of the L-adjustment component 424 crank are 0° and 180°, the machining begins from 0° to 180° and from 180° to 0° respectively. According to the crank acceleration cosine curve, in each straight segment of the two tenons, the start is with a smooth increase in speed and acceleration, and then a smooth decrease in speed and acceleration before stopping. The entire process is impact-free, ensuring both the quality of the tenon machining and the lifespan of the parts.

[0082] However, both the 90-degree and 180-degree schemes can simplify the tool path and improve processing efficiency when machining at the left and right workstations.

[0083] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A mechanical tenoning machine, characterized in that, include The frame (100) has a tray (200) slidably connected to it in the lateral direction. The spindle mechanism (600) is used to drive the tool (603) to rotate; A circular arc motion mechanism (300) is used to drive the main shaft mechanism (600) to achieve circular arc motion. It is installed on the disk frame (200), and the main shaft mechanism (600) passes through and is connected to the circular arc motion mechanism (300). A linear motion mechanism (400) is used to drive the main shaft mechanism (600) to achieve transverse linear motion. It is mounted on the disc frame (200) and acts on the arc motion mechanism (300). A table adjustment mechanism (700) is installed on the frame (100) to fix the workpiece (900) to be processed. The distance and angle of the workpiece (900) to be processed relative to the spindle mechanism (600) can be adjusted through the table adjustment mechanism (700). A motion control mechanism (500) is connected to the linear motion mechanism (400) and the circular motion mechanism (300) respectively, controls the movement of the linear motion mechanism (400) and the circular motion mechanism (300), and is installed on the plate frame (200). A drive geared motor (800) is connected to the motion control mechanism (500) for outputting power for linear and circular motion; The motion control mechanism (500) transmits the power output from the drive reduction motor (800) to the linear motion mechanism (400) and the circular motion mechanism (300), so that the main shaft mechanism (600) executes the output of the linear or circular trajectory in a logical sequence.

2. The mechanical tenoning machine according to claim 1, characterized in that, The motion control mechanism (500) includes a multi-layer frame (501) mounted on the disc frame (200). A drive shaft (502) is vertically mounted in the middle of the multi-layer frame (501) via bearings. A first driven shaft (507) and a second driven shaft (508) are respectively arranged on both sides of the drive shaft (502). Both the first driven shaft (507) and the second driven shaft (508) are vertically mounted on the multi-layer frame (501) via bearings and extend through multiple layers. An S-cam group and an LR-cam group are fixedly sleeved on the drive shaft (502) from bottom to top. The S-cam group and the LR-cam group are located on different layers of the multi-layer frame (501). The first driven shaft (507) is arranged from bottom to top... An S roller seat (511) and an R roller seat (515) are fitted together, with the S roller seat (511) and the R roller seat (515) respectively located on different layers of the multi-layer frame (501); an L roller seat (518) is fitted onto the second driven wheel shaft (508); the S roller seat (511) corresponds to the S cam group, and the R roller seat (515) and the L roller seat (518) both correspond to the LR cam group; the driving wheel shaft (502) is connected to the drive reduction motor (800); the S roller seat (511) and the L roller seat (518) are both connected to the linear motion mechanism (400); and the R roller seat (515) is connected to the circular motion mechanism (300).

3. The mechanical tenoning machine according to claim 2, characterized in that, Both the S-cam group and the LR-cam group are double-layer cam structures. The S-cam group includes an upper S-drive wheel (503) and a lower S-positioning wheel (504). The LR-cam group includes an upper LR-drive wheel (505) and a lower LR-positioning wheel (506). The S-roller seat (511), the L-roller seat (518), and the R-roller seat (515) each include a first layer and a second layer fixedly connected. Both the first and second layers have a plurality of pins (512) evenly distributed on them. Each pin (512) is fitted with a freely rotatable bushing (513), and each bushing (513) engages with a corresponding cam. The S-cam group... The upper and lower bushings of the roller seat (511) are respectively engaged with the S drive wheel (503) and the S positioning wheel (504); the upper bushing of the R roller seat (515) and the upper bushing of the L roller seat (518) are respectively engaged with the LR drive wheel (505); the lower bushing of the R roller seat (515) and the lower bushing of the L roller seat (518) are respectively engaged with the LR positioning wheel (506); each bushing (513) is driven by a cam and alternately engages with the cam curve, respectively controlling the S roller seat (511), L roller seat (518) and R roller seat (515) to rotate and stop at the angle required by the design.

4. The mechanical tenoning machine according to claim 2, characterized in that, The circular arc motion mechanism (300) includes a circular arc drive assembly and a circular arc radius adjustment assembly. The circular arc drive assembly includes a meshing circular arc drive gear (309) and a turntable (301). The turntable (301) is rotatably connected to the disc frame (200). The circular arc drive gear (309) is connected to the R roller seat (515) through a first transmission assembly. The circular arc radius adjustment assembly includes a guide groove, a main shaft slide (305), an adjusting screw (3062), and an adjusting nut (308). The guide groove is located on the turntable (301). The main spindle mechanism (600) is connected to the main spindle slide (305). The main spindle slide (305) is movably connected to the adjusting screw (3062) and slidably connected to the guide groove. The adjusting nut (308) is fixedly mounted on the turntable (301). The adjusting screw (3062) is also threadedly connected to the adjusting nut (308). Rotating the adjusting screw (3062) can change the distance between the main spindle slide (305) and the adjusting nut (308), thereby changing the eccentricity distance between the shaft of the main spindle mechanism (600) and the shaft of the turntable (301).

5. The mechanical tenoning machine according to claim 4, characterized in that, The first transmission assembly includes a drive bevel gear shaft (405) and a driven bevel gear shaft (404). One end of the drive bevel gear shaft (405) is provided with a drive bevel gear (406), and the other end is provided with an R driven gear (407). The end of the driven bevel gear shaft (404) is provided with a driven bevel gear. The driven bevel gear is connected to the arc drive gear (309) through a transmission shaft (311). The R roller seat (515) is provided with an R drive gear (516), and the R drive gear (516) meshes with the R driven gear (407). The drive bevel gear (406) meshes with the driven bevel gear at the end of the driven bevel gear shaft (404).

6. The mechanical tenoning machine according to claim 4, characterized in that, The arc radius adjustment assembly also includes a gear steering mechanism (306) and a handwheel shaft (3061). One end of the main shaft slide (305) is vertically connected to the main shaft mechanism (600). The gear steering mechanism (306) is fixedly mounted on the other end of the main shaft slide (305). The gear steering mechanism (306) is perpendicular to the end face of the turntable (301) and connected to the handwheel shaft (3061). The output end of the gear steering mechanism (306) along the radial direction of the turntable (301) is connected to the adjusting screw (3062). Rotating the handwheel shaft (3061) drives the adjusting screw (3062) to rotate through the gear steering mechanism (306) to change the distance between the main shaft slide (305) and the adjusting nut (308), thereby changing the eccentricity distance between the shaft core of the main shaft mechanism (600) and the shaft core of the turntable (301).

7. The mechanical tenoning machine according to any one of claims 2 to 6, characterized in that, The linear motion mechanism (400) includes a displacement base (401), and a first drive assembly, a second drive assembly, a second transmission assembly, and an L adjustment assembly (424) are all mounted on the displacement base (401); the displacement base (401) is fixedly mounted on the disc frame (200); the first drive assembly includes a reinforcing shaft (409) and a displacement arm (411), one end of the reinforcing shaft (409) is connected to the S roller seat (511), the other end of the reinforcing shaft (409) is connected to one end of the displacement arm (411), and the other end of the displacement arm (411) is hinged to the second transmission assembly; the second drive assembly includes an output shaft (447) and an L connecting rod (423); the output shaft (447) is fixedly mounted on the disc frame (200); the first drive assembly includes a reinforcing shaft (409) and a displacement arm (411), the second drive assembly includes a first drive assembly, a second drive assembly, a second transmission assembly, and an L adjustment assembly (424). 47) One end of the output shaft (447) is connected to the L roller seat (518) for transmission, and the other end of the output shaft (447) is hinged to one end of the L connecting rod (423) through the L adjusting component (424); the other end of the L connecting rod (423) is connected to the second transmission component; the second transmission component includes a displacement gear set, the displacement gear set includes a first output gear (4422), the frame (100) is provided with an output rack (445) in the horizontal direction, and the first output gear (4422) meshes with the output rack (445); both the first drive component and the second drive component can output power through the second transmission component to make the disc frame (200) work in conjunction with the main shaft mechanism (600) to move linearly along the frame (100).

8. The mechanical tenoning machine according to claim 7, characterized in that, The second transmission assembly further includes a first displacement plate (438), a displacement connecting rod seat (439), a displacement connecting rod (412), and a second displacement plate (436). The first displacement plate (438) is disposed above the displacement connecting rod seat (439) and fixedly connected thereto. The displacement connecting rod seat (439) is located above the displacement connecting rod (412) and hinged thereto via a bearing. The displacement connecting rod (412) is located above the displacement arm (411) and hinged thereto. The displacement connecting rod seat (439) is disposed through the second displacement plate (436), and the second displacement plate (436) is connected to the L-connecting rod. (423) They are fitted together by bearings; the first displacement plate (438) is provided with a displacement gear seat (440), the displacement gear set is installed on the first displacement plate (438) through the displacement gear seat (440), the displacement gear set also includes an input gear (4421) and a displacement gear shaft (441), the first output gear (4422) and the input gear (4421) are both installed on the displacement gear shaft (441), the second displacement plate (436) is provided with an input rack (437), the input rack (437) meshes with the input gear (4421).

9. The mechanical tenoning machine according to claim 8, characterized in that, A fixed guide rail seat (430) is fixed on one side of the upper part of the displacement base (401). The fixed guide rail seat (430) has a first guide rail pair (431) and a second guide rail pair (432) arranged in parallel, one above the other. The first guide rail pair (431) and the second guide rail pair (432) are both composed of two guide rails and a roller strip placed in the middle. Each of the first guide rail pair (431) and the second guide rail pair (432) has a guide rail that is fastened to the fixed guide rail seat (430) by screws. An adjusting guide rail seat (435) is fixed on the other side of the upper part of the displacement base (401). The adjusting guide rail seat (435) has a third guide rail pair (433) and a fourth guide rail pair arranged in parallel, one above the other. The guide rail pair (434) is as follows: the first guide rail pair (431) and the third guide rail pair (433) are horizontally corresponding; the second guide rail pair (432) and the fourth guide rail pair (434) are horizontally corresponding; each of the third guide rail pair (433) and the fourth guide rail pair (434) has a guide rail connected to the adjusting guide rail seat (435) by screws; the other guide rails of the first guide rail pair (431) and the third guide rail pair (433) are respectively fixedly installed on both sides of the bottom of the first displacement plate (438); the other guide rails of the second guide rail pair (432) and the fourth guide rail pair (434) are respectively fixedly installed on both sides of the second displacement plate (436).

10. The mechanical tenoning machine according to claim 9, characterized in that, The L adjustment assembly (424) includes an L adjustment seat (414), an L adjustment slider (416), an L adjustment shaft (419), and an L adjustment screw (417). The bottom of the L adjustment seat (414) is fixedly connected to the output shaft (447). A groove (4142) is provided in the L adjustment seat (414). The L adjustment slider (416) is slidably connected to the L adjustment seat (414) through the groove (4142). The L adjustment screw (417) is rotatable and passes laterally through the L adjustment slider (416). One end of the L adjustment screw (417) passes through the threaded hole (4142) at the end of the groove (4142) of the L adjustment seat (414). 143), with a bevel gear (418) fixed at the other end. The L adjustment shaft (419) is perpendicular to the L adjustment slider (416). The L adjustment shaft (419) is fitted with a freely rotatable L adjustment bevel gear shaft (420). The L adjustment bevel gear shaft (420) meshes with the bevel gear (418). The L connecting rod (423) is connected to the L adjustment shaft (419) through a bearing away from the end connected to the second displacement plate (436). When the L adjustment assembly (424) rotates, the L connecting rod (423) drives the second displacement plate (436) to make a reciprocating linear motion along the second guide rail pair and the fourth guide rail pair, and makes a corresponding displacement distance according to the adjusted tenon length.

11. The mechanical tenoning machine according to claim 7, characterized in that, It also includes a planetary gear set (520), one of the input ends of which is connected to a second driven gear shaft (508). A swing main gear (519) is mounted on the first driven gear shaft (507). The swing main gear (519) is connected to the other input end of the planetary gear set (520) in sequence through two transition gears (522). The transition gears (522) are fixed on the multi-layer frame (501) by bearings and shaft cores and can rotate freely. The output end of the planetary gear set (520) is fixedly connected to the output shaft (447).

12. The mechanical tenoning machine according to claim 11, characterized in that, The planetary gear set (520) includes a planet carrier (521), and a planet carrier gear (5211) is provided on the outside of the planet carrier (521). The oscillating main gear (519) drives the intermediate gear (522), which in turn drives the planet carrier gear (5211). A sun gear (523) is fixed in the center of the planet carrier (521) by a bearing. The sun gear (523) and the planet carrier (521) can rotate freely relative to each other. The sun gear (523) is connected to the second driven gear shaft (508). The planet carrier (521) There are two double-layer planetary gears (524) around the center. The sun gear (523) meshes with the lower gears of the two double-layer planetary gears (524). The output shaft (447) is located at the upper center of the planet carrier (521). A transmission gear (526) is fixed at one end of the output shaft (447). The transmission gear (526) meshes with the upper gears of the two double-layer planetary gears (524). One end of the output shaft (447) extends out of the planet carrier (521) and is connected to the L adjustment assembly (424).

13. The mechanical tenoning machine according to claim 4, characterized in that, The spindle mechanism (600) includes a spindle seat (601) and a spindle motor (613). The spindle motor (613) is mounted on the disc frame (200). The spindle seat (601) passes through the turntable (301). A freely rotatable main cutter spindle (602) is fixed inside the spindle seat (601) by bearings. The cutter bar end of the main cutter spindle (602) passes through the spindle slide (305) and the turntable (301) and extends outside the disc frame (200). A cutting tool (603) is mounted on the main cutter spindle (602). The end of the main cutter spindle (602) away from the cutting tool (603) is connected to the spindle motor (613) through a transmission pulley set.

14. A method for processing a single-piece tenon, characterized in that, The machining process using the mechanical tenoning machine as described in any one of claims 1 to 13 specifically includes the following steps: The starting machining point is the left end of the right station where the tool (603) of the spindle mechanism (600) moves. S1: Processing at the right workstation; The motion control mechanism (500) controls the arc motion mechanism (300) to drive the spindle mechanism (600) to perform arc motion, and at the same time the spindle mechanism (600) controls the tool (603) to rotate to perform arc machining in section A; The motion control mechanism (500) controls the linear motion mechanism (400) to drive the spindle mechanism (600) to perform linear motion, while the spindle mechanism (600) controls the tool (603) to rotate to perform B-segment linear machining; The motion control mechanism (500) controls the circular arc motion mechanism (300) to drive the spindle mechanism (600) to perform circular arc motion. At the same time, the spindle mechanism (600) controls the tool (603) to rotate and perform C-segment circular arc machining. The motion control mechanism (500) controls the linear motion mechanism (400) to drive the spindle mechanism (600) to perform linear motion, while the spindle mechanism (600) controls the tool (603) to rotate and perform D-segment linear machining. S2: Switching from right workstation to left workstation; The motion control mechanism (500) controls the linear motion mechanism (400) to drive the spindle mechanism (600) to perform linear motion, and performs the switch from the right station to the left station. The tool (603) moves to the right end of the left station. S3: Machining at the left workstation; The motion control mechanism (500) controls the linear motion mechanism (400) to drive the spindle mechanism (600) to perform linear motion, while the spindle mechanism (600) controls the tool (603) to rotate and perform D-segment linear machining. The motion control mechanism (500) controls the arc motion mechanism (300) to drive the spindle mechanism (600) to perform arc motion, and at the same time the spindle mechanism (600) controls the tool (603) to rotate to perform arc machining in section A; The motion control mechanism (500) controls the linear motion mechanism (400) to drive the spindle mechanism (600) to perform linear motion, while the spindle mechanism (600) controls the tool (603) to rotate to perform B-segment linear machining; The motion control mechanism (500) controls the circular arc motion mechanism (300) to drive the spindle mechanism (600) to perform circular arc motion. At the same time, the spindle mechanism (600) controls the tool (603) to rotate and perform C-segment circular arc machining. S4: Switching from the left workstation to the right workstation; The motion control mechanism (500) controls the linear motion mechanism (400) to drive the spindle mechanism (600) to perform linear motion, and performs the switch from the right station to the left station. The tool (603) moves to the left end of the right station. S5: Determine whether the processing is complete. If yes, end the process; otherwise, return to step S1.

Images