Tool bit path driving and adjusting device for tenoning machine

Abstract

The utility model relates to the technical field of machinery, in particular to a tool bit path driving and adjusting device for a tenoning machine. Comprising a rack, a linear adjusting mechanism used for driving a tool bit assembly to achieve transverse linear motion, an arc adjusting mechanism used for driving the tool bit assembly to achieve arc motion and a driving motor. A transverse linear guide rail is arranged on the rack; the linear adjusting mechanism is installed on the rack, and the movable end of the linear adjusting mechanism is connected with the transverse linear guide rail in a sliding mode. The arc adjusting mechanism is connected with the movable end of the linear adjusting mechanism; the driving motor is connected with the linear adjusting mechanism and the arc adjusting mechanism and used for driving the linear adjusting mechanism and the arc adjusting mechanism to move. According to the utility model, a mechanical structure is adopted to drive the tool bit to carry out arc and linear cutting, so that the kidney-shaped straight tenon is machined, and the cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machinery, and more specifically to a tool head path driving and adjusting device for a tenoning machine. Background Art

[0002] Mortise and tenon joints are often used in solid wood furniture, and the straight tenon is a mortise and tenon structure that accounts for a relatively large proportion of simple mortise and tenon joints. Commonly used equipment for straight tenon and tenon processing includes CNC mortise machines, swing mortise machines, and square hole drills. Square hole drills are rarely used in practice because they are entirely operated manually during the processing process, with extremely high labor intensity and low efficiency. CNC mortise machines and swing mortise machines are more efficient. Both devices automatically move the center of the tool mortise drill back and forth on a straight line according to the required length, and slowly process the straight tenon from shallow to deep. The mortise processed in this way is a long strip with arcs at both ends, that is, a waist-round shape. However, because CNC mortise machines are expensive and swing mortise machines are more economical, many manufacturers with simple straight tenon needs choose to use swing mortise machines, and the processed mortise is also waist-round in shape.

[0003] Commonly used equipment for the automated processing of slotted tenons include CNC tenon machines, five-disc saws, and gong machines. The five-disc saw and gong machine are both used to process the slotted tenon by removing wood in a fixed shape on the vertical section of the straight line through the cutter along a straight line. The tenon processed in this way is rectangular. When it cooperates with the waist-round mortise, there will be a semi-cylindrical cavity at both ends. This affects both firmness and aesthetics during actual assembly. The two semi-cylindrical cavities need to be filled with glue during production to improve firmness, which greatly increases the amount of glue used, which is not conducive to environmental protection and economy. This prompts producers to choose to use CNC tenon machines to process waist-round tenons. Although CNC tenon machines can process waist-round slotted tenons, they have huge functions and are expensive. Using them to process waist-round slotted tenons only uses a small part of their functions. This is neither economical nor wasteful. Summary of the invention

[0004] In order to overcome the defects in the above-mentioned prior art, the utility model provides a tool head path drive adjustment device for a tenoning machine, which adopts a mechanical structure to drive the tool head to perform arc and straight line cutting, thereby processing a waist-round tenon, which can effectively reduce costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A tool head path driving and adjusting device for a tenoning machine comprises a frame, a linear adjustment mechanism for driving a tool head assembly to achieve lateral linear motion, an arc adjustment mechanism for driving the tool head assembly to achieve arc motion, and a driving motor; a lateral linear guide is provided on the frame; the linear adjustment mechanism is installed on the frame, and the movable end of the linear adjustment mechanism is slidably connected to the lateral linear guide; the arc adjustment mechanism is connected to the movable end of the linear adjustment mechanism; the driving motor is respectively connected to the linear adjustment mechanism and the arc adjustment mechanism, and is used to drive the linear adjustment mechanism and the arc adjustment mechanism to move.

[0007] According to the above technical means, the utility model provides a scheme of mechanical drive to make the tool run according to the designed path, so as to process the waist round tenon. In the utility model, the waist round tenon shape is disassembled into a combination of two straight lines and two semicircular trajectories, and the advance and retreat trajectories are added and then combined in sequence to form a tool path required for processing the waist round tenon, and finally the processing of the waist round tenon is realized through mechanical drive. First, the straight line adjustment mechanism is started to drive the cutter head assembly to cut along a straight line to cut out a straight line section of the waist round tenon; then the straight line adjustment mechanism is paused, the arc adjustment mechanism is started, and the cutter head assembly is driven to realize semicircular cutting. When the semicircle is just cut out, the arc adjustment mechanism is paused; the straight line adjustment mechanism is started again to drive the cutter head assembly to cut along a straight line. After cutting out another straight line section, the straight line adjustment mechanism is paused; the arc adjustment mechanism is started again to drive the cutter head assembly to cut the other semicircle. The utility model adopts mechanical drive, which is lower in cost than CNC.

[0008] In one embodiment, the arc adjustment mechanism includes a first intermittent cam divider and a first mandrel, wherein the first intermittent cam divider is slidably connected to the transverse linear guide rail through a base plate; the output shaft of the drive motor is connected to the input shaft of the first intermittent cam divider; one end of the first mandrel is connected to the output shaft of the first intermittent cam divider and is eccentrically arranged with the output shaft of the first intermittent cam divider, and the other end of the first mandrel is used to connect with the cutter head assembly; the drive motor is mounted on the base plate. The first mandrel is eccentrically arranged with the output shaft of the first intermittent cam divider, and the output shaft of the first intermittent cam divider rotates, driving the first mandrel to rotate in a circle with the output shaft of the first intermittent cam divider as the center, thereby driving the main cutter shaft to cut an arc shape.

[0009] In one embodiment, the linear adjustment mechanism includes a second intermittent cam divider, a second core shaft and a first linear telescopic mechanism, the second intermittent cam divider is slidably connected to the transverse linear guide rail through a base plate, and the output shaft of the drive motor is connected to the input shaft of the second intermittent cam divider; one end of the second core shaft is connected to the output shaft of the second intermittent cam divider and is eccentrically arranged to the output shaft of the second intermittent cam divider, the other end of the second core shaft is rotatably connected to one end of the first linear telescopic mechanism, and the other end of the first linear telescopic mechanism is rotatably mounted on the frame. The second intermittent cam divider, the second core shaft and the first linear telescopic mechanism together form a structure similar to a crank slider, which converts the circumferential motion of the second intermittent cam divider into linear motion; the second core shaft is eccentrically set with the output shaft of the second intermittent cam divider, and the output shaft of the second intermittent cam divider rotates, driving the second core shaft to rotate. Since the second core shaft is connected to one end of the first linear telescopic mechanism, and the other end of the first linear telescopic mechanism is fixed on the frame, at this time, the end of the first linear telescopic mechanism connected to the second core shaft swings up and down and performs telescopic motion at the same time, driving the second intermittent cam divider to perform linear motion as a whole. The second intermittent cam divider is fixed on the base plate, and the base plate is slidably connected to the transverse linear slide rail, causing the first intermittent cam divider and the second intermittent cam divider to move back and forth as a whole along the direction of the transverse linear slide rail.

[0010] In one embodiment, the linear adjustment mechanism includes a driving cylinder, one end of which is mounted on the frame, and the other end of which is slidably connected to the transverse linear guide rail via a base plate.

[0011] When both the linear adjustment mechanism and the arc adjustment mechanism adopt intermittent cam dividers, it is the first solution of the utility model; when the arc adjustment mechanism adopts the intermittent cam divider and the linear adjustment mechanism adopts the driving cylinder, it is another alternative second solution.

[0012] For the first scheme: the intermittent cam divider is a universal part. The input shaft rotates one circle, and the output shaft rotates one half. The input shaft rotates 360 degrees in one circle, and is divided into two parts: the driving angle and the stop angle. The driving angle output shaft moves, and the stop angle output angle remains unchanged. The intermittent cam divider used in the present invention is divided into two parts, that is, at 0 to 180 degrees, the output shaft of the first intermittent cam divider does not move, and the output shaft of the second intermittent cam divider moves, driving the main knife shaft to perform straight-line cutting; 180 to 360 degrees, the output shaft of the second intermittent cam divider does not move, and the output shaft of the first intermittent cam divider moves, driving the main knife shaft to perform semicircular cutting; running one circle, the waist round tenon cuts a straight line and a semicircle; running two weeks, just processing a complete waist round tenon.

[0013] For the second solution: the arc adjustment mechanism still uses an intermittent cam divider, while the linear adjustment mechanism uses a driving cylinder instead. The driving cylinder directly drives the base plate and the first intermittent cam divider installed on the base plate to make linear motion, thereby driving the main knife shaft to make linear motion; in this solution, the driving cylinder is extended into place, driving the whole to make linear motion, and realizing linear cutting of the main knife shaft; at this time, the driving cylinder does not retract first, the input shaft of the first intermittent cam divider rotates one circle, and the output shaft rotates 180 degrees to realize semicircular cutting; then the driving cylinder retracts to its original position to realize another straight line cutting, then the input shaft of the first intermittent cam divider rotates one circle again, and the output shaft rotates 180 degrees again to complete the cutting of the other semicircle.

[0014] In one embodiment, the arc adjustment mechanism further includes a first radius adjustment mechanism for adjusting the center distance between the first mandrel and the output shaft of the first intermittent cam divider. The first radius adjustment mechanism can adjust the center distance between the first mandrel and the first intermittent cam divider, and by changing the center distance between the two, the radius of the arc trajectory of the first mandrel can be changed, thereby changing the radius value of the waist circle cut by the cutter head assembly.

[0015] In one embodiment, the linear adjustment mechanism further includes a second radius adjustment mechanism for adjusting the center distance between the second mandrel and the output shaft of the second intermittent cam divider. The second radius adjustment mechanism can adjust the center distance between the second mandrel and the second intermittent cam divider, that is, change the distance of the second intermittent cam divider's overall linear motion, thereby adjusting the length of the straight line segment of the waist round tenon cut by the guide assembly. Through the first radius adjustment mechanism and the second radius adjustment mechanism, different sizes of waist round tenons can be processed.

[0016] In one embodiment, the linear adjustment mechanism also includes a limit rod for limiting the telescopic distance of the driving cylinder, a gas-liquid damping cylinder capable of adjusting the telescopic speed, a cylinder seat and a mounting plate; one end of the driving cylinder is connected to the frame, the other end of the driving cylinder is connected to the cylinder seat, one end of the gas-liquid damping cylinder is connected to the cylinder seat, and the other end is fixedly connected to the base plate through the mounting plate; one end of the limit rod is fixedly connected to the mounting plate, and the other end is slidably connected to the cylinder seat, and a limit stop is provided at the end of the limit rod. When the linear adjustment mechanism adopts a combination of a driving cylinder and an air-liquid damping cylinder, the driving cylinder realizes the operation of feeding and retracting the knife. Since the air-liquid damping cylinder can also adjust the extension and retraction speed, the air-liquid damping cylinder is used to realize the operation of the straight segment of the waist round tenon. The specific implementation process is: the driving cylinder is started to drive the whole body to move in a straight line, so that the main tool shaft moves to contact with the workpiece, that is, the feeding action, and then the driving cylinder is suspended, and the air-liquid damping cylinder is started to drive the whole body to move in a straight line to realize the cutting of the straight segment of the waist round tenon. At this time, the air-liquid damping cylinder does not retract first, the input shaft of the first intermittent cam divider rotates one circle, and the output shaft rotates 180 degrees to realize the cutting of a semicircle; then the air-liquid damping cylinder retracts to its original position to realize the cutting of another straight line. Then, the input shaft of the first intermittent cam divider rotates one circle again, and the output shaft rotates 180 degrees again to complete the cutting of the other semicircle; finally, the driving cylinder retracts to its original position to realize the retracting action. Two cylinders are set to cooperate with each other, and the feed and retract operations are controlled by one cylinder separately, which can make the positioning more accurate.

[0017] In one of the embodiments, the first radius adjustment mechanism includes a first adjustment seat, a first adjustment screw, a first slide, and a first adjustment nut; the first adjustment seat is fixedly connected to the output shaft of the first intermittent cam divider, the first slide is slidably connected to the first adjustment seat, and the sliding trajectory of the first slide is perpendicular to the first core shaft; the first adjustment screw is rotatably mounted on the first adjustment seat, the threaded end of the first adjustment screw is passed through the first adjustment nut, and the other end is rotatably connected to the first adjustment seat through a bearing; the first adjustment nut is connected to the first slide, and rotating the first adjustment screw can drive the first slide to slide relative to the first adjustment seat; the first core shaft is mounted on the first slide, and is arranged parallel to the output shaft of the first intermittent cam divider; a first digital position display is sleeved on the first adjustment screw.

[0018] In one of the embodiments, the second radius adjustment mechanism includes a second adjustment seat, a second adjustment screw, a second slide, and a second adjustment nut; the second adjustment seat is fixedly connected to the output shaft of the second intermittent cam divider, the second slide is slidably connected to the second adjustment seat, and the sliding trajectory of the second slide is perpendicular to the second core shaft; the second adjustment screw is rotatably mounted on the second adjustment seat, the threaded end of the second adjustment screw is passed through the second adjustment nut, and the other end is rotatably connected to the second adjustment seat through a bearing; the second adjustment nut is connected to the second slide, and rotating the second adjustment screw can drive the second slide to slide relative to the second adjustment seat; the second core shaft is mounted on the second slide, and is arranged parallel to the output shaft of the second intermittent cam divider; a second digital position display is sleeved on the second adjustment screw.

[0019] By setting the first digital position display and the second digital position display on the first adjusting screw and the second adjusting screw, it can be more clearly known how much the first core shaft moves relative to the output shaft of the first intermittent cam divider and how much the second core shaft moves relative to the output shaft of the second intermittent cam distributor.

[0020] In one embodiment, the output shaft of the driving motor is connected to the input shaft of the first intermittent cam divider and the input shaft of the second intermittent cam divider respectively through a synchronous pulley and a synchronous belt.

[0021] Compared with the prior art, the beneficial effect is: the utility model provides a tool head path drive adjustment device for a tenon machine, which adopts a mechanical structure to drive the tool head to perform arc and straight line cutting, thereby processing a waist-round tenon, which can effectively reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the connection between the utility model and the cutter head assembly.

[0023] Figure 2 It is a schematic diagram of the overall structure of Example 1.

[0024] Figure 3 It is a schematic diagram of the structure of the linear adjustment mechanism in Example 1.

[0025] Figure 4 It is a schematic diagram of the structure of the arc adjustment mechanism in Example 1.

[0026] Figure 5 It is a schematic diagram of the overall structure of Example 2.

[0027] Figure 6 It is a schematic diagram of the path of driving the cutter head to feed the tool in the utility model.

[0028] Figure 7 It is a schematic diagram comparing the tenon symmetry center datum and the waist round end semicircle center datum.

[0029] 1. Drawing reference numerals: 10, frame; 101, transverse linear guide rail; 102, first slide assembly; 20, cutter head assembly; 201, cross arm; 301, base plate; 302, drive motor; 303, motor plate; 304, synchronous pulley; 305, synchronous belt; 306, first joint bearing; 307, second cylinder swing seat; 308, second tail swing seat; 309, second tail seat; 31, linear adjustment mechanism; 311, second intermittent cam divider; 312, first linear telescopic mechanism; 313, second spindle; 3101, second adjustment seat; 3102, second slide; 3103, second adjustment nut; 3104, second nut; 3105, third screw; 3106, second adjustment plate; 3107, second plane bearing; 3108, second adjustment screw; 3109, second locking nut; 3110, first digital position display; 3111 , second limit plate; 3112, second screw; 32, arc adjustment mechanism; 321, first intermittent cam divider; 322, first spindle; 3201, first adjustment seat; 3202, first slide seat; 3203, first adjustment nut; 3204, first limit plate; 3205, first bearing; 3206, first screw; 3207, first adjustment plate; 3208, first plane bearing; 3209, first adjustment screw Rod; 3210, first locking nut; 3211, second digital position display; 3212, fourth screw; 3213, first nut; 401, base frame; 402, limit rod; 403, limit nut; 404, mounting plate; 405, gas-liquid damping cylinder; 406, guide sleeve; 407, guide rail; 408, cylinder seat; 409, driving cylinder; 410, second spherical bearing; 411, tailstock; 50, workpiece. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The utility model is described in one of the embodiments in combination with the specific implementation methods. Among them, the drawings are only used for exemplary descriptions, and only schematic diagrams are shown, not physical drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0031] In the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only used for exemplary explanations and cannot be understood as a limitation of this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that satisfy both A and B.

[0032] Embodiment 1:

[0033] like Figure 1 and Figure 2 As shown, a tool path drive adjustment device for a tenoning machine is provided, including a frame 10, on which a horizontal linear guide 101 is horizontally installed on a plane, and a first slide group 102 is installed on the horizontal linear guide 101, and can slide along the horizontal linear guide 101. The base plate 301 is fixedly connected to the first slide group 102, and the drive motor 302 is fixed below the base plate 301 through the motor plate 303. A linear adjustment mechanism 31 and an arc adjustment mechanism 32 are arranged on the base plate 301 from bottom to top. The linear adjustment mechanism 31 and the arc adjustment mechanism 32 both have an intermittent cam divider (the intermittent cam divider is a universal part. The input shaft rotates one circle, and the output shaft rotates one equal part. The input shaft is divided into two parts, a driving angle and a stop angle, for 360 degrees. The output shaft of the driving angle moves, and the stop angle output angle remains in place. The intermittent cam divider used in this example is divided into two equal parts.)

[0034] like Figure 1 and Figure 2 , Figure 3 As shown, the linear adjustment mechanism 31 includes a second intermittent cam divider 311, a second spindle 313, a first linear telescopic mechanism 312, and a second radius adjustment mechanism; the second radius adjustment mechanism includes a second adjustment seat 3101, a second adjustment screw 3108, a second slide seat 3102, and a second adjustment nut 3103. In this embodiment, the first linear telescopic mechanism 312 uses a first cylinder.

[0035] like Figure 1 , Figure 2 , Figure 3 As shown, the second intermittent cam divider 311 is fixed on the bottom plate 301 as a base, and the output shaft of the driving motor 302 and the input shaft of the second intermittent cam divider 311 are respectively provided with synchronous pulleys 304 and connected by synchronous belts 305. The second adjustment seat 3101 is transversely fixed on the output shaft end of the second intermittent cam divider 311, and the second slide 3102 is clamped on the second adjustment seat 3101 and can move linearly along the slide rails on both sides of the second adjustment seat 3101. The second slide 3102 is provided with a second adjustment nut 3103 inwardly, and the second slide 3102 is provided with a second mandrel 313 outwardly, and the first joint bearing 306 is fixed at the concentric end of the second mandrel 313 through a third screw 3105. The first joint bearing 306 is connected to the extension rod of the first cylinder, and the tail of the first cylinder is fixed to the frame 10 through the second cylinder swing seat 307, the second tail swing seat 308 and the second tail seat 309. When the first cylinder rises and shrinks, it can drive the bottom plate 301 and the linear adjustment mechanism 31 and the arc adjustment mechanism 32 installed on the bottom plate 301 to move as a whole. A second adjustment plate 3106 is fixed at one end of the second adjustment seat 3101. There is a large through hole on the second adjustment plate 3106. There are two second plane bearings 3107 at both ends of the through hole and concentric with the through hole. The threaded end of the second adjustment screw 3108 passes through the second adjustment nut 3103, and the other end passes through the through hole and the two second plane bearings 3107 and is fitted with a second locking nut 3109. A step surface of the second adjustment screw 3108 and the second locking nut 3109 are respectively against the second plane bearing 3107 at the through hole end, so as to limit the axial displacement of the second adjustment screw 3108. The second adjustment screw 3108 has an outer hexagonal section beyond the first digital position display 3110, which is convenient for the handle or wrench to rotate the second adjustment screw 3108. A threaded hole is provided on the side of the large through hole of the second adjustment plate 3106, and a second screw 3112 is installed on the threaded hole for zero limit. The limit can be adjusted by rotating the second screw 3112, and locked with the second nut 3104. A second limit plate 3111 is fixed to the other end of the second adjustment seat 3101, and a threaded hole is provided on the second limit plate 3111, and a second screw 3112 is installed on the threaded hole for maximum limit. The limit can be adjusted by rotating the second screw 3112, and locked with the second nut 3104.

[0036] The second adjusting screw 3108 is rotated to drive the second slide 3102 to move along the slide rail, so as to adjust the center distance between the second mandrel 313 and the output shaft of the second intermittent cam divider 311. When the center distance between the second mandrel 313 and the output shaft of the second intermittent cam divider 311 is zero, the rotation of the output shaft of the intermittent cam divider does not produce displacement, and the processed shape is a waist shape with a center distance of zero, that is, a circle. When the center distance between the second mandrel 313 and the output shaft of the second intermittent cam divider 311 is not zero, it is equivalent to a crank mechanism, and the rotation of the output shaft of the second intermittent cam divider 311 will produce displacement, and the displacement is the center distance L of the waist circle.

[0037] like Figure 1 , Figure 2 and Figure 4As shown, the arc adjustment mechanism 32 includes a first intermittent cam divider 321, a first mandrel 322, and a first radius adjustment mechanism; the first radius adjustment mechanism includes a first adjustment seat 3201, a first adjustment screw 3209, a first slide seat 3202, and a first adjustment nut 3203. The first intermittent cam divider 321 is fixedly connected to the second intermittent cam divider 311 as a base. A synchronous pulley 304 is provided between the input shaft of the first intermittent cam divider 321 and the input of the second intermittent cam divider 311 and connected by a synchronous belt 305. The first adjustment seat 3201 is vertically fixed on the output shaft end of the first intermittent cam divider 321, and the first slide seat 3202 is clamped on the first adjustment seat 3201 and can move linearly along the slide rails on both sides of the first adjustment seat 3201. The first adjustment nut 3203 is installed inwardly of the first slide seat 3202. The first slide seat 3202 is externally fixed with a first spindle 322, and the first spindle 322 is sleeved with a first bearing 3205 and fastened by a first screw 3206. The outer ring of the first bearing 3205 is locked in the open through hole of the cross arm 201, and is connected to the cutter head assembly 20 through the cross arm 201. A first adjustment plate 3207 is fixed at one end of the first adjustment seat 3201. There is a large through hole on the first adjustment plate 3207, and two first plane bearings 3208 are concentrically arranged at both ends of the through hole. The threaded end of the first adjustment screw 3209 passes through the first adjustment nut 3203, and the other end passes through the through hole and the two first plane bearings 3208 and is sleeved with a first locking nut 3210. A step surface of the first adjustment screw 3209 and the first locking nut 3210 respectively abut against the first plane bearing 3208 at the through hole end, thereby limiting the axial displacement of the first adjustment screw 3209. The first adjusting screw 3209 has an outer hexagonal section beyond the second digital position display 3211, which is convenient for the handle or wrench to rotate the first adjusting screw 3209. There is a threaded hole on the edge of the large through hole of the first adjusting plate 3207, and a fourth screw 3212 is installed on the threaded hole for zero point limit. The limit can be adjusted by rotating the fourth screw 3212 and locked with the first nut 3213. The first limit plate 3204 is fixed at the other end of the first adjusting seat 3201, and the first limit plate 3204 has a threaded hole, and a fourth screw 3212 is installed on the threaded hole for maximum limit. The limit can be adjusted by rotating the fourth screw 3212 and locked with the first nut 3213.

[0038] By rotating the first adjusting screw 3209 to drive the first slide 3202 to move along the slide rail, the center distance between the first core shaft 322 and the output shaft of the first intermittent cam divider 321 can be adjusted. When the center distance between the first core shaft 322 and the output shaft of the first intermittent cam divider 321 is equal to the tool radius, the radius processed by the rotation of the output shaft of the first intermittent cam divider 321 is zero. When the center distance between the first core shaft 322 and the output shaft of the first intermittent cam divider 321 is greater than the tool radius, the processed arc is the center distance minus the tool radius.

[0039] Example 2

[0040] The other structures of this embodiment are the same as those of the first embodiment, except that in this embodiment, a first digital position indicator 3110 is mounted on the second adjusting screw 3108 where it extends out of the second locking nut 3109 to display the position. A second digital position indicator 3211 is mounted on the first adjusting screw 3209 where it extends out of the first locking nut 3210 to display the position.

[0041] Example 3

[0042] like Figure 7 As shown, when the customer chooses not to use the symmetric center of the tenon as a reference, but to use the semicircle center of one end of the tenon waist circle as a reference to locate the relative position of the tenon and the workpiece 50, the linear adjustment mechanism 31 has a second option. Figure 5 As shown, the second scheme of the linear adjustment mechanism 31 has a base frame 401 fixed on the bottom plate 301, and a first intermittent cam divider 321 is fixed on the top of the base frame 401. The output shaft of the drive motor 302 and the input shaft of the first cam divider are respectively provided with synchronous pulleys 304 and connected through synchronous belts 305. The linear adjustment mechanism 31 has a mounting plate 404 fixed on the bottom plate 301, and a gas-liquid damping cylinder 405 is installed on the mounting plate 404. Two guide sleeves 406 are fixed on both sides of the gas-liquid damping cylinder 405, and guide rails 407 are sleeved on the two guide sleeves 406 to move along a straight line. The extended rod end of the gas-liquid damping cylinder 405 is fixedly connected with a cylinder seat 408, and the cylinder seat 408 is fixedly connected to the ends of the two guide rails 407. A driving cylinder 409 is fixedly installed above the cylinder seat 408. The extended rod end of the driving cylinder 409 is hinged to the tail frame 411 through the second joint bearing 410, and the tail frame 411 is fixed to the frame 10. When the driving cylinder 409 is extended, it is the advance of the knife, and when the cylinder is retracted, it is the retreat of the knife. The gas-liquid damping cylinder 405 can adjust the telescopic speed to achieve the purpose of adjusting the feeding speed. The telescopic stroke of the gas-liquid damping cylinder 405 is the center distance a=L of the tenon waist circle. A limit rod 402 is fixed on the side of the mounting plate 404 and the gas-liquid damping cylinder 405. After the limit rod 402 passes through the through hole at the corresponding position of the cylinder seat 408, the end is locked with a limit stop. In this embodiment, two limit nuts 403 are used as limit stops. The position of the limit nuts 403 can be adjusted to limit the extension limit stroke of the gas-liquid damping cylinder 405, thereby achieving the purpose of adjusting the center distance of the tenon waist circle.

[0043] like Figure 6As shown, the utility model is driven mechanically, according to the logic: feed → L straight line → R semicircle → L straight line → R semicircle → retract, to combine the tool diameter required for processing the waist round tenon, and make the L straight line and R semicircle adjustable, so as to meet the processing of waist round tenons with different size requirements. The tenon can be positioned at different positions relative to the workpiece 50 by adjusting the placement table. Two different positioning methods are provided, namely the symmetric center of the waist round tenon and the semicircle center of the end of the waist round tenon, so that customers can choose a more suitable combination according to their habitual needs.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0045] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A tool head path drive adjustment device for a tenoning machine, characterized in that: The invention comprises a frame (10), a linear adjustment mechanism (31) for driving a cutter head assembly (20) to realize transverse linear motion, an arc adjustment mechanism (32) for driving the cutter head assembly (20) to realize arc motion, and a driving motor (302); a transverse linear guide rail (101) is provided on the frame (10); the linear adjustment mechanism (31) is mounted on the frame (10), and the movable end of the linear adjustment mechanism (31) is slidably connected to the transverse linear guide rail (101); the arc adjustment mechanism (32) is connected to the movable end of the linear adjustment mechanism (31); the driving motor (302) is respectively connected to the linear adjustment mechanism (31) and the arc adjustment mechanism (32), and is used to drive the linear adjustment mechanism (31) and the arc adjustment mechanism (32) to move.

2. The tool head path drive adjustment device for a tenoning machine according to claim 1, characterized in that: The arc adjustment mechanism (32) comprises a first intermittent cam divider (321) and a first core shaft (322); the first intermittent cam divider (321) is slidably connected to the transverse linear guide rail (101) via a base plate (301); the output shaft of the drive motor (302) is connected to the input shaft of the first intermittent cam divider (321); one end of the first core shaft (322) is connected to the output shaft of the first intermittent cam divider (321) and is eccentrically arranged to the output shaft of the first intermittent cam divider (321); the other end of the first core shaft (322) is used to connect to the tool head assembly (20); the drive motor (302) is mounted on the base plate (301).

3. The tool head path drive adjustment device for a tenoning machine according to claim 2, characterized in that: The linear adjustment mechanism (31) comprises a second intermittent cam divider (311), a second core shaft (313) and a first linear telescopic mechanism (312); the second intermittent cam divider (311) is slidably connected to the transverse linear guide rail (101) via a base plate (301); the output shaft of the drive motor (302) is connected to the input shaft of the second intermittent cam divider (311); one end of the second core shaft is connected to the output shaft of the second intermittent cam divider (311) and is eccentrically arranged to the output shaft of the second intermittent cam divider (311); the other end of the second core shaft (313) is rotatably connected to one end of the first linear telescopic mechanism (312); and the other end of the first linear telescopic mechanism (312) is rotatably mounted on the frame (10).

4. The tool head path drive adjustment device for a tenoning machine according to claim 2, characterized in that: The linear adjustment mechanism (31) comprises a driving cylinder (409), one end of which is mounted on the frame (10), and the other end of which is slidably connected to the transverse linear guide rail (101) via a base plate (301).

5. The tool head path drive adjustment device for a tenoning machine according to claim 3 or 4, characterized in that: The arc adjustment mechanism (32) also includes a first radius adjustment mechanism for adjusting the center distance between the first core shaft (322) and the output shaft of the first intermittent cam divider (321).

6. The tool head path drive adjustment device for a tenoning machine according to claim 3, characterized in that: The linear adjustment mechanism (31) also includes a second radius adjustment mechanism for adjusting the center distance between the second core shaft (313) and the output shaft of the second intermittent cam divider (311).

7. The tool head path drive adjustment device for a tenoning machine according to claim 4, characterized in that: The linear adjustment mechanism (31) further comprises a limit rod (402) for limiting the telescopic distance of the driving cylinder (409), a gas-liquid damping cylinder (405) capable of adjusting the telescopic speed, a cylinder seat (408) and a mounting plate (404); One end of the driving cylinder (409) is connected to the frame (10), and the other end of the driving cylinder (409) is connected to the cylinder seat (408); one end of the gas-liquid damping cylinder (405) is connected to the cylinder seat (408), and the other end is fixedly connected to the base plate (301) via a mounting plate (404); one end of the limiting rod (402) is fixedly connected to the mounting plate (404), and the other end is slidably connected to the cylinder seat (408), and a limiting stopper is provided at the end of the limiting rod (402).

8. The tool path drive adjustment device for a tenoning machine according to claim 5, characterized in that: The first radius adjustment mechanism comprises a first adjustment seat (3201), a first adjustment screw (3209), a first slide seat (3202), and a first adjustment nut (3203); the first adjustment seat (3201) is fixedly connected to the output shaft of the first intermittent cam divider (321); the first slide seat (3202) is slidably connected to the first adjustment seat (3201), and the sliding track of the first slide seat (3202) is perpendicular to the first core shaft (322); the first adjustment screw (3209) is rotatably mounted on the first adjustment seat (3201) The threaded end of the first adjusting screw (3209) is inserted into the first adjusting nut (3203), and the other end is rotatably connected to the first adjusting seat (3201) through a bearing; the first adjusting nut (3203) is connected to the first sliding seat (3202), and the first adjusting screw (3209) is rotated to drive the first sliding seat (3202) to slide relative to the first adjusting seat (3201); the first core shaft (322) is installed on the first sliding seat (3202) and is arranged parallel to the output shaft of the first intermittent cam divider (321); A first digital position display (3110) is sleeved on the first adjusting screw (3209).

9. The tool path drive adjustment device for a tenoning machine according to claim 6, characterized in that: The second radius adjustment mechanism comprises a second adjustment seat (3101), a second adjustment screw (3108), a second slide seat (3102), and a second adjustment nut (3103); the second adjustment seat (3101) is fixedly connected to the output shaft of the second intermittent cam divider (311); the second slide seat (3102) is slidably connected to the second adjustment seat (3101), and the sliding track of the second slide seat (3102) is perpendicular to the second core shaft (313); the second adjustment screw (3108) is rotatably mounted on the second adjustment seat (3101) The threaded end of the second adjusting screw (3108) is inserted into the second adjusting nut (3103), and the other end is rotatably connected to the second adjusting seat (3101) through a bearing; the second adjusting nut (3103) is connected to the second sliding seat (3102), and the second adjusting screw (3108) is rotated to drive the second sliding seat (3102) to slide relative to the second adjusting seat (3101); the second mandrel (313) is installed on the second sliding seat (3102) and is arranged parallel to the output shaft of the second intermittent cam divider (311); A second digital position display (3211) is sleeved on the second adjusting screw (3108).

10. The tool head path drive adjustment device for a tenoning machine according to claim 9, characterized in that: The output shaft of the driving motor (302) is connected to the input shaft of the first intermittent cam divider (321) and the input shaft of the second intermittent cam divider (311) respectively through a synchronous pulley (304) and a synchronous belt (305).

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