Automatic tool setting system of 3D printing equipment

Abstract

The invention discloses an automatic tool setting system of 3D printing equipment, and relates to the technical field of machine tool machining, and the automatic tool setting system comprises a self-adjusting contact mechanism used for changing an actual contact point of a tool setting gauge in real time so as to ensure the detection accuracy, and a deviation detection mechanism used for judging the error of an initial original point detected by the tool setting gauge, and the positioning self-adjusting mechanism is used for adjusting the position of the workpiece according to detection data of the deviation detection mechanism and automatically calibrating the obliquely mounted workpiece. The inclination error of the workpiece can be detected through the positioning self-adjusting mechanism and the deviation detection mechanism, then automatic deviation correction is carried out according to the inclination condition, then the transverse error of the workpiece in a certain direction is judged according to the position of the tool setting gauge during detection, and then the transverse error is automatically detected. The positioning self-adjusting mechanism is used for finely adjusting the transverse error of the workpiece, and the state of a contact column of the tool setting gauge is changed, so that overall contact is converted into local contact.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tool processing, and in particular to an automatic tool setting system for 3D printing equipment. Background Art

[0002] After the workpiece model is printed by the 3D printing equipment, it is necessary to chamfer and cut it in one piece and fine-tune the edge of the 3D workpiece model. Tool setting is one of the necessary links. In the existing tool setting operation, the tool is often set by a tool setter, which is a device used to improve the efficiency of mechanical processing. In the process of finishing the workpiece, auxiliary time such as workpiece loading and unloading and tool adjustment occupies a large proportion of the processing cycle. Among them, the adjustment of the tool is not only time-consuming and labor-intensive, but also difficult to be accurate, and trial cutting is usually required. According to statistics, in the processing and finishing of a workpiece, pure maneuvering time only accounts for 55% of the total time, while auxiliary time such as clamping and tool setting accounts for 45%. Therefore, the use of the tool setting system can significantly reduce these auxiliary times and improve overall processing efficiency.

[0003] However, since the workpiece needs to be clamped manually and the set processing program often does not change, it is necessary to use a tool setting device to detect the position of the clamped workpiece. At this time, the tool setting device will be used for calibration. When setting the tool, the surface of the tool setting instrument is often touched with the surface of the workpiece, and the position of the origin of the workpiece after installation is determined by touch. If the error between the detected origin position and the set position is too large, it is necessary to manually fine-tune the workpiece, so that multiple calibrations may be required to make the workpiece position reach the set position. At the same time, when using the contact method for tool setting, it is necessary to ensure that there is no processing flying catkins between the contact surface of the tool setting instrument and the contacted surface of the workpiece, otherwise it may cause the surface of the tool setting instrument to contact the workpiece through the flying catkins, but in fact there is still a gap between the tool setting instrument and the workpiece, resulting in errors in tool setting and affecting subsequent processing. Summary of the invention

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. The embodiment of the present invention provides an automatic tool setting system for 3D printing equipment to solve the technical problems that when the existing machine tool tool setting device uses a contact tool setting instrument for tool setting, the surface of the tool setting instrument and the surface of the workpiece may be attached with waste cotton, resulting in errors in the detection data. At the same time, after the tool setting is completed, it is inconvenient to fine-tune the position of the workpiece.

[0005] The embodiment of the present invention adopts the following technical scheme: an automatic tool setting system for 3D printing equipment, including a machine tool, and also including a machine head for controlling the movement of a tool and a tool setting instrument, a self-adjusting contact mechanism for changing the actual contact point of the tool setting instrument in real time to ensure the detection accuracy, a deviation detection mechanism for judging the initial origin error detected by the tool setting instrument, and a positioning self-adjusting mechanism for adjusting the position of a workpiece according to the detection data of the deviation detection mechanism and automatically calibrating the workpiece installed with an inclination, the self-adjusting contact mechanism including an upper connection box connected to the machine head, and a detection device is arranged above the upper connection box A detection and judgment component is provided, a plurality of stacked movable resistance blocks are arranged below the upper connection box, a base is arranged at the end of the movable resistance block, the base is hollow, a plurality of conveying pipes are arranged between the plurality of movable resistance blocks, one end of the pipe is connected to the base, and one end of the pipe is located in the upper connection box, a movable intermediate hose is arranged between the plurality of movable resistance blocks, an adjusting ball is arranged in the intermediate hose, a traction wire is arranged between the adjusting ball and the detection component, an extrusion plate is arranged in the upper connection box, and a regulating pole is arranged between the extrusion plate and the bottom surface of the detection component.

[0006] Furthermore, the contact surface between the movable abutment block and the middle hose is an arc surface, and the middle hose and the base are connected to each other.

[0007] Furthermore, the positioning deviation detection mechanisms are respectively arranged on both sides of the machine head, and each of the deviation detection mechanisms includes a locking plate, in which an electric locking block is provided for limiting the position between the locking plate and the machine tool, and a movable plate is provided beside the locking plate, and a limiting electric control rod and an extrusion liquid rod are respectively provided between the movable plate and the locking plate.

[0008] Furthermore, the locking plate and the movable plate are sleeved on a machine tool screw that controls the movement of the machine head, and the movement of the machine head abuts against the movable plate.

[0009] Furthermore, the positioning self-adjusting mechanism includes a tilt detection component and an adjustment component, the tilt detection component includes a placement rack, a slide groove is opened on the side of the placement rack, two sliders for moving in the slide groove are arranged in the slide groove, and a contact block and a matching touch block for detecting the end point position of the workpiece are respectively arranged above the two sliders, the matching touch block and the contact block are connected by an elastic telescopic rod, an extrusion liquid bag is arranged on the end side of the slider, a rotating plate in the middle position of the placement rack can be used to rotate the workpiece at an angle, the rotating plate is connected to a rotating motor, a balancing rack is arranged under each of the elastic telescopic rods, and both sides of the balancing rack are connected to the placement rack through matching telescopic rods, and each of the telescopic rods is connected to the corresponding extrusion liquid bag through a first connecting pipe.

[0010] Furthermore, the mating touch block is hollow, and an electric control push rod is arranged inside the mating touch block, the movable end of the electric control push rod is connected to a locking block, a locking head is arranged on the outer side of the locking block, the locking block and the locking head are movably connected to each other, and the locking head is connected to the movable end of the elastic telescopic rod.

[0011] Furthermore, the adjustment component includes a toggle block, which slides along the balance frame under the influence of its own gravity and the tilt angle, an auxiliary block is arranged outside the toggle block, and limiting blocks are arranged on both sides of the auxiliary block, an extrusion telescopic rod is arranged outside the limiting block, and the fixed end of the extrusion telescopic rod is connected to the balance frame through a locking block, and a plug-in block is arranged in the locking block for controlling the position of the extrusion telescopic rod, and the two locking blocks are connected by a connecting rod.

[0012] Furthermore, the two extrusion telescopic rods are provided with electric control contactors for sending signals to the controller, and the controller controls the rotating motor to turn left or right respectively.

[0013] Furthermore, the end of the mating telescopic rod and the balancing frame are connected by a ball head, so that the two sides of the balancing frame can be non-parallel.

[0014] Furthermore, the inner cross section of the intermediate hose is the same as the cross section of the regulating ball.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) By setting a self-adjusting contact mechanism, compared with the ordinary tool setting instrument, the contact wall of the existing tool setting instrument is a cylinder similar to a milling cutter. By moving the tool setting instrument, the outer wall of the tool setting instrument touches the workpiece in multiple directions, so as to determine the position of the processing origin of the workpiece. During processing, the processing environment may cause a certain point on the contact surface of the tool setting instrument to be stuck with residue (it can be understood that there are protrusions on the surface of the tool setting instrument, and the protrusions are generally made of metal, which causes the tool setting instrument to have tool setting errors during tool setting). During the use of the self-adjusting contact mechanism, it is manually set An initial contact point is used to transform a complete contact surface into a multi-point contact by dividing it at equal intervals. When a protrusion still appears at the initial contact point, the movable resistance block corresponding to the protrusion is displaced, and the entire tool setting device can continue to move until the remaining movable resistance blocks can truly contact the tool setting point of the workpiece, and the adjustment ball inside that plays a role in position corresponding calibration will be moved under the movement of the movable resistance block (the position of the adjustment ball is judged as the tool setting detection point), so that the tool setting detection point is actually in an active state. When using this method for tool setting, it can prevent the protrusions on the surface of the workpiece from affecting the accuracy of tool setting; (2) Through the setting of the positioning self-adjusting mechanism, during the installation of the workpiece, since it is often installed manually, the workpiece may be tilted. However, if the tilt is small, it may not be discovered manually, and the tilt state may also cause the position of the tool setting point of the workpiece to remain unchanged, so that the workpiece position cannot be found during the tool setting process. At this time, through the positioning self-adjusting mechanism, during the clamping process of the workpiece, it can automatically determine whether the workpiece surface is on the same horizontal line. If it is on the same horizontal line, it means that the workpiece is not tilted. If it is not on the same horizontal line, it means that the workpiece is tilted. At this time, according to the error degree of the two points, the rotation The moving frame will drive the workpiece to deflect at a small angle, thereby automatically correcting the angle. However, during use, the contact point of the workpiece may be tilted, and the positioning self-adjusting mechanism can also adjust the initial values ​​of the two points to make the error of the endpoint values ​​the correct error (or if the contact points of the workpiece base are not on a horizontal line, the initial error value will be adjusted in the same way). However, when the workpiece tilts too much, the detected error value will be greater than the set error value. At this time, the rotating plate will still rotate to adjust the excessive tilt angle, thereby reducing the need for machine tool operators to frequently adjust the mold and effectively improving work efficiency. (3) By setting up a deviation detection mechanism, the installed workpiece can be detected in a certain direction during use. The moving distance of the machine head during the original point adjustment process can be used to determine whether the workpiece has a small distance error in a certain direction. At this time, the deviation detection mechanism can detect and determine this small error, and then through the cooperation with the positioning self-adjusting mechanism, the small error can be automatically compensated, thereby effectively reducing the processing error and improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 It is a schematic diagram of the structure of the self-adjusting contact mechanism of the present invention; Figure 4 It is a schematic diagram of the internal structure of the self-adjusting contact mechanism of the present invention; Figure 5It is a schematic diagram of the structure of the positioning self-adjusting mechanism of the present invention; Figure 6 It is a schematic diagram of the internal structure of the matching touch block of the present invention; Figure 7 It is a front view structural schematic diagram of the positioning self-adjusting mechanism of the present invention; Figure 8 for Figure 7 Enlarged view of point B in the middle.

[0018] Reference numerals: 1. Machine tool; 2. Positioning self-adjusting mechanism; 21. Placement rack; 22. Rotating plate; 23. Slide; 24. First electric push rod; 25. Sliding block; 26. Squeeze liquid capsule; 27. Contact block; 28. First connecting pipe; 29. ​​Elastic telescopic rod; 210. Matching telescopic rod; 211. Plug-in connector; 212. Detection component; 213. Balancing frame; 214. Hydraulic push rod; 217. Matching touch block; 218. Connecting rod; 219. Plug-in block; 220. Locking block; 221. Squeeze telescopic rod; 222 , limiting block; 223, auxiliary block; 224, toggle block; 225, locking head; 226, electric control push rod; 227, locking block; 3, deviation detection mechanism; 31, movable plate; 32, limiting electric control rod; 33, locking plate; 34, electric locking block; 35, extrusion liquid rod; 4, machine head; 5, self-adjusting contact mechanism; 51, base; 52, delivery pipe; 53, movable resistance block; 54, intermediate hose; 55, upper connection box; 56, pressing plate; 57, regulating pole; 58, traction wire; 59, adjusting ball. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0021] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Combine the following Figures 1 to 8As shown, an embodiment of the present invention provides an automatic tool setting system for 3D printing equipment, including a machine tool 1, and also includes a machine head 4 for controlling the movement of a tool and a tool setting instrument, a self-adjusting contact mechanism 5 for changing the actual contact point of the tool setting instrument in real time to ensure the detection accuracy, a deviation detection mechanism 3 for judging the initial origin error detected by the tool setting instrument, and a positioning self-adjusting mechanism 2 for adjusting the position of a workpiece according to the detection data of the deviation detection mechanism 3 and automatically calibrating the workpiece installed with an inclination, the self-adjusting contact mechanism 5 includes an upper connecting box 55 connected to the machine head 4, a detection and judgment component is arranged above the upper connecting box 55, and a detection and judgment component is arranged below the upper connecting box 55. A plurality of movable resistance blocks 53 stacked together are provided, a base 51 is provided at the end of the movable resistance block 53, the base 51 is hollow, a plurality of conveying pipes 52 are provided between the plurality of movable resistance blocks 53, one end of the pipe is connected to the base 51, and one end of the pipe is located in an upper connecting box 55, a movable intermediate hose 54 is provided between the plurality of movable resistance blocks 53, an adjusting ball 59 is provided in the intermediate hose 54, a traction wire 58 is provided between the adjusting ball 59 and the detection component 212, an extrusion plate is provided in the upper connecting box 55, and a regulating pole 57 is provided between the extrusion plate and the bottom surface of the detection component 212. Firstly, the inclination error of the workpiece can be detected respectively by the positioning self-adjusting mechanism 2 and the deviation detection mechanism 3, and then the inclination is automatically corrected. Subsequently, the lateral error of the workpiece in a certain direction is judged by the position of the tool setting instrument during the detection, and then the lateral error is automatically detected. The positioning self-adjusting mechanism 2 is used to fine-tune the lateral error of the workpiece, thereby reducing the problem that the operator is unable to control the distance during fine-tuning. Secondly, during use, the state of the contact column of the tool setting instrument is changed, so that the overall contact is transformed into partial contact, and the specific contact point is not a fixed point, thereby reducing the phenomenon that the accuracy of the tool setting data is caused by particles attached to the workpiece or the contact wall of the tool setting instrument.

[0025] Specifically, the contact surface between the movable abutment block 53 and the intermediate hose 54 is an arc surface, and the intermediate hose 54 is connected to the base 51. During use, since the inner surface of the movable abutment block 53 is an arc surface, when the movable abutment block 53 moves and squeezes the intermediate hose 54, the squeezed position of the intermediate hose 54 is also in an arc shape, that is, it can be understood as an inner arc, and the inner arc can abut the adjustment ball 59 (the outer surface of the adjustment ball 59 is also an arc surface, which means that the two arc surfaces are in relative contact), so that the contact ball can be displaced under the action of the squeezing force, thereby achieving the effect of automatically changing the contact point.

[0026] Specifically, the positioning deviation detection mechanism 3 is respectively arranged on both sides of the machine head 4, and each of the deviation detection mechanisms 3 includes a locking plate 33, in which an electric lock block 34 is provided for limiting the locking plate 33 and the machine tool 1, and a movable plate 31 is provided beside the locking plate 33, and a limiting electric control rod 32 and an extrusion liquid rod 35 are respectively provided between the movable plate 31 and the locking plate 33, and the locking plate 33 and the movable plate 31 are connected and sleeved on the screw of the machine tool 1 that controls the movement of the machine head 4, and the movement of the machine head 4 contacts the movable plate 31. During use, the position of the movable plate 31 is controlled by limiting the electric control rod 32, and the set position of the movable plate 31 is the position where the tool setting instrument should be located. However, the workpiece will have a position deviation at this time, causing the machine head 4 to squeeze the movable plate 31 back, and the movable plate 31 retracts to squeeze the extrusion liquid rod 35 to squeeze out the internal liquid. The more it squeezes out, the greater the deviation. However, the processing problem of the machine tool 1 must also be considered at this time. The existence of the locking plate 33 cannot affect the processing of the workpiece, that is, the position of the locking plate 33 can be unlocked so that it will not hinder the machine head 4 during the processing of the workpiece.

[0027] Specifically, the positioning self-adjusting mechanism 2 includes a tilt detection component 212 and an adjustment component. The tilt detection component 212 includes a placement rack 21. A slide groove 23 is provided on the side of the placement rack 21. Two sliders 25 for moving in the slide groove 23 are provided in the slide groove 23. A contact block 27 and a matching touch block 217 for detecting the end position of the workpiece are provided above the two sliders 25. The matching touch block 217 and the contact block 27 are connected by an elastic telescopic rod 29. A first electric contact block 218 is provided between the elastic telescopic connecting rod 218 and the placement rack 21. A push rod 24 and a hydraulic push rod 214, the end of the hydraulic push rod 214 is connected to the extrusion liquid rod 35 through a plug-in connector 211 and a first connecting tube 28, and an extrusion liquid capsule 26 is arranged on the end side of the slider 25. A rotating plate 22 is used to rotate the workpiece at an angle in the middle position of the placement frame 21, and the rotating plate 22 is connected to a rotating motor. A balancing frame 213 is arranged under each of the elastic telescopic rods 29, and both sides of the balancing frame 213 are connected to the placement frame 21 through matching telescopic rods 210, and each of the telescopic rods is connected to the corresponding extrusion liquid capsule 26 through a first connecting tube 28.

[0028] Specifically, the mating touch block 217 is hollow, and an electric control push rod 226 is arranged inside the mating touch block 217. The movable end of the electric control push rod 226 is connected to a locking block 227. A locking head 225 is arranged on the outer side of the locking block. The locking block 227 and the locking head 225 can be movably engaged with each other, and the locking head 225 is connected to the movable end of the elastic telescopic rod 29.

[0029] During operation, because the positioning self-adjusting mechanism 2 needs to adjust the angle and overall position offset of the workpiece respectively, and control the elastic telescopic rod 29 at the same time, the elastic telescopic rod 29 may move as a whole and deflect locally. Therefore, the elastic telescopic rod 29 needs to change its state, that is, the contact block 27 and the mating touch block 217 change their states of synchronous movement and asynchronous movement under the action of the elastic telescopic rod 29. Therefore, the elastic telescopic rod 29 needs to be connected and disconnected with each other in different situations.

[0030] Specifically, the adjustment component includes a toggle block 224, which slides along the balance frame 213 under the influence of its own gravity and the tilt angle, and an auxiliary block 223 is arranged outside the toggle block 224, and limiting blocks 222 are respectively arranged on both sides of the auxiliary block 223, and an extrusion telescopic rod 221 is arranged on the outside of the limiting block 222, and the fixed end of the extrusion telescopic rod 221 is connected to the balance frame 213 through a locking block 220, and a plug-in block 219 is arranged in the locking block 220 for controlling the position of the extrusion telescopic rod 221, and the two locking blocks 220 are connected by a connecting rod 218.

[0031] Specifically, the two extrusion telescopic rods 221 are provided with electric control contactors for sending signals to the controller, and the controller controls the rotating motor to turn left or right respectively.

[0032] During operation, the squeezed liquid is used to determine whether the two ends of the balance frame 213 are tilted. If tilted, it means that the two contact points of the workpiece are not on the same horizontal line. The auxiliary block 223 is used to determine the tilt. Displacement will occur under the effect of tilt. If the displacement is greater than the set displacement, it can be concluded that the difference between the endpoint values ​​is too large and needs to be adjusted. However, in the process of tilting, it may tilt to the left or to the right. For this reason, the left and right tilt of the auxiliary block 223 can determine where the workpiece needs to be deflected.

[0033] Specifically, the end of the mating telescopic rod 210 and the balancing frame 213 are connected by a ball head, so that the two sides of the balancing frame 213 can be non-parallel. Due to the spherical connection, the use of the contact block 27 and the mating touch block 217 will not be affected when the mating telescopic rod 210 is connected.

[0034] Specifically, the inner cross-section of the intermediate hose 54 is the same as the cross-section of the adjusting ball 59. Since the intermediate hose 54 and the adjusting ball 59 have the same cross-section, the intermediate hose 54 has a certain plastic deformation ability at the same time, so that the intermediate hose 54 has a certain deformation ability and a certain hardness.

[0035] Working principle: During the use of the device, it is divided into two parts for explanation. The first is to adjust the workpiece. When the operator installs the workpiece on the placement rack 21, the workpiece may be placed at an angle. In order to avoid the occurrence of the tilt affecting the processing of the workpiece, it is necessary to automatically adjust the tilt of the workpiece. However, it is necessary to first detect the tilt of the workpiece, and then adjust it according to the detected situation. During the detection, by moving the slider 25, the contact block 27 connected to the slider 25 and the matching touch block 217 are adjusted in position. When the adjustment is completed, After the workpiece is formed, the contact block 27 and the matching contact block 27 are pushed until the matching block and the matching contact block 27 contact the workpiece. During the displacement of the contact block 27 and the matching contact block 27, the liquid capsule 26 is squeezed, so that the liquid in the liquid capsule 26 is transferred to the matching telescopic rod 210 through the first connecting tube 28. The liquid squeezed into the matching telescopic rod 210 squeezes the movable end of the matching telescopic rod 210, so that the movable end is displaced. Since the workpiece may be tilted, the movement amount of the contact block 27 and the matching contact block 217 is different, that is, the two matching contact blocks 217 located on the balance frame 213 are different. The extension lengths of the movable ends of the telescopic rods 210 are different, which causes the balance frame 213 connected thereto to tilt. The tilt angle is related to the distance error between the contact block 27 and the mating contact block 27. The greater the error, the greater the tilt angle (similarly, the greater the error, the greater the tilt angle of the workpiece). When the balance frame 213 tilts, the toggle block 224 located in the balance frame 213 will slide along the tilt direction under the action of the tilt force and its own gravity, and will conflict with the limit blocks 222 set on both sides of the toggle block 224 during the sliding process. It is worth noting that: the balance frame 213 13 The friction force increases gradually from the middle to both sides, and the limiting block 222 squeezes the extrusion telescopic rod 221 to make synchronous extrusion deformation. When the extrusion deformation is completed, the extrusion of the extrusion telescopic rod 221 will make the internally arranged pressure sensor send a signal to the controller. The controller sends a signal to drive the motor to rotate. The driving motor rotates to drive the rotating plate 22 to move, and the workpiece placed on the rotating plate rotates. The amount of rotation is related to the balance frame 213. When the toggle block 224 squeezes the limiting blocks 222 on different sides, the deflection of the rotating motor is different, so that the motor deflects according to different situations; It is worth noting that at this time, the bottom surface of the workpiece may not be horizontal, so the contact block 27 and the matching contact block 217 that abut the workpiece are not horizontal (so that the balance frame 213 is tilted at this time). Therefore, at this time, the initial position of the limiting block 222 can be adjusted according to the state of the bottom surface of the installed workpiece, so that the balance frame 213 can be tilted. However, if the limiting block 222 is still squeezed, it means that the tilt angle of the balance frame 213 is too large. At this time, according to the additional squeezing amount, the deflection angle of the workpiece is adjusted again, so that when the deflection angle of the workpiece is adjusted, it can be better adjusted according to different situations; At this time, it should be noted that before tool setting, the plug-in connector is connected to the extrusion push rod. After the workpiece adjustment is completed, the workpiece needs to be tool set, the machine head 4 is moved to a suitable position, and then the movable plate 31 is controlled to move by adjusting the limiting electric control rod 32 according to the tool setting requirements. If there is a lateral error in the installation position of the workpiece, the machine head 4 will have excessive deviation during the tool setting process, that is, the movable plate 31 will be squeezed when the machine head 4 moves, causing the movable plate 31 to move, thereby squeezing the liquid inside the extrusion liquid rod 35 into the hydraulic push rod 214 through the first connecting pipe 28, and the movable end of the hydraulic push rod 214 moves. (This It should be noted that in the previous adjustment, the engaging head 225 and the engaging block 227 are separated, and the two sides of the telescopic rod 210 can move separately. However, when performing lateral adjustment, the electric control push rod 226 pushes the engaging block 227, so that the engaging block 227 is engaged with the engaging head 225, that is, the contact block 27 and the matching touch block 217 are fixedly connected through the elastic telescopic rod 29. At this time, when the hydraulic push rod 214 drives the elastic telescopic rod 29 to move, the contact block 27 and the matching touch block 217 will move synchronously, thereby completing the lateral movement and achieving the role of position adjustment) When the position adjustment is completed, when the tool is set at this time, it will be affected by the processing environment at this time. A certain point on the contact surface of the tool setting instrument may be stained with residue (it can be understood that there are protrusions on the surface of the tool setting instrument, and the protrusions are generally made of metal, which causes tool setting errors when the tool setting instrument is performing tool setting). At this time, the protrusions will interfere with the movable interference block 53 at the corresponding position, causing it to move, and other parts that are not interfered with will not be affected. If the position of the interfered movable interference block 53 happens to correspond to the position of the adjusting ball 59, when the movable interference block 53 squeezes the middle hose 54, the deformation of the middle hose 54 will also squeeze the adjusting ball 59, causing the adjusting ball 59 to move, until the adjusting ball 59 is not interfered with, it can be said that the point is The plane point is a qualified tool setting point when the point fits the surface of the workpiece. At the same time, the position of the adjusting ball 59 is the real contact point. During use, the position of the specific tool setting point may change. For this reason, the pressing plate 56 can be pushed by controlling the regulating rod 57 to displace the pressing plate 56. The displacement of the pressing plate 56 drives the liquid level in the connecting box to change. The liquid enters the intermediate hose 54 through the base 51 of the delivery pipe 52, thereby adjusting the position of the adjusting ball 59. Even if the position of the initial detection point is not a fixed point, it can be adaptively changed according to needs, which effectively improves the tool setting accuracy and processing efficiency.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic tool setting system for 3D printing equipment, comprising a machine tool (1), characterized in that: The invention also comprises a machine head (4) for controlling the movement of the tool and the tool setting instrument, a self-adjusting contact mechanism (5) for changing the actual contact point of the tool setting instrument in real time to ensure the detection accuracy, a deviation detection mechanism (3) for judging the initial origin error detected by the tool setting instrument, and a positioning self-adjusting mechanism (2) for adjusting the position of the workpiece according to the detection data of the deviation detection mechanism (3) and automatically calibrating the workpiece installed with an inclination, wherein the self-adjusting contact mechanism (5) comprises an upper connecting box (55) connected to the machine head (4), a detection and judgment component is arranged above the upper connecting box (55), and a plurality of movable abutment blocks (53) stacked together are arranged below the upper connecting box (55), and the movable abutment blocks (53) are arranged below the upper connecting box (55). A base (51) is provided at the end of the abutment block (53), the base (51) being hollow, a plurality of delivery pipes (52) are provided between a plurality of the movable abutment blocks (53), one end of the pipe is connected to the base (51), and one end of the pipe is located in an upper connection box (55), a movable intermediate hose (54) is provided between a plurality of the movable abutment blocks (53), an adjustment ball (59) is provided in the intermediate hose (54), a traction wire (58) is provided between the adjustment ball (59) and the detection component (212), an extrusion plate is provided in the upper connection box (55), and an adjustment pole (57) is provided between the extrusion plate and the bottom surface of the detection component (212).

2. The automatic tool setting system for 3D printing equipment according to claim 1, characterized in that; The contact surface between the movable resistance block (53) and the middle hose (54) is an arc surface, and the middle hose (54) and the base (51) are connected to each other.

3. The automatic tool setting system for 3D printing equipment according to claim 1, characterized in that: The positioning deviation detection mechanisms (3) are respectively arranged on both sides of the machine head (4), and each of the deviation detection mechanisms (3) comprises a locking plate (33), wherein the locking plate (33) is provided with an electric locking block (34) for limiting the position between the locking plate (33) and the machine tool (1), and a movable plate (31) is arranged beside the locking plate (33), and a limiting electric control rod (32) and an extrusion liquid rod (35) are respectively arranged between the movable plate (31) and the locking plate (33).

4. The automatic tool setting system for 3D printing equipment according to claim 3, characterized in that: The locking plate (33) and the movable plate (31) are sleeved on a screw of a machine tool (1) that controls the movement of a machine head (4), and the machine head (4) moves against the movable plate (31).

5. The automatic tool setting system for 3D printing equipment according to claim 3, characterized in that: The positioning self-adjusting mechanism (2) comprises an inclination detection component (212) and an adjustment component. The inclination detection component (212) comprises a placement rack (21). A slide groove (23) is provided on the side of the placement rack (21). Two sliders (25) for moving in the slide groove (23) are provided in the slide groove (23). A contact block (27) and a matching touch block (217) for detecting the end point position of a workpiece are provided above the two sliders (25). The matching touch block (217) and the contact block (27) are connected by an elastic telescopic rod (29). A first electric push rod (218) is provided between the elastic telescopic connecting rod (218) and the placement rack (21). 24) and a hydraulic push rod (214), the end of the hydraulic push rod (214) is connected to the extrusion liquid rod (35) through a plug-in connector (211) and a first connecting tube (28), and an extrusion liquid capsule (26) is arranged on the end side of the slider (25), and a rotating plate (22) is used to rotate the workpiece at an angle in the middle position of the placement frame (21), and the rotating plate (22) is connected to a rotating motor, and a balancing frame (213) is arranged below each of the elastic telescopic rods (29), and both sides of the balancing frame (213) are connected to the placement frame (21) through matching telescopic rods (210), and each of the telescopic rods is connected to the corresponding extrusion liquid capsule (26) through a first connecting tube (28).

6. The automatic tool setting system for 3D printing equipment according to claim 5, characterized in that; The mating touch block (217) is hollow, and an electric control push rod (226) is arranged inside the mating touch block (217); a snap-fit ​​block (227) is connected to the movable end of the electric control push rod (226); a snap-fit ​​head (225) is arranged outside the snap-fit ​​block (227); the snap-fit ​​block (227) and the snap-fit ​​head (225) are movably snap-fitted to each other, and the snap-fit ​​head (225) is connected to the movable end of the elastic telescopic rod (29).

7. The automatic tool setting system for 3D printing equipment according to claim 5, characterized in that: The adjustment component comprises a toggle block (224), wherein the toggle block (224) slides along the balance frame (213) under the influence of its own gravity and the tilt angle, an auxiliary block (223) is arranged outside the toggle block (224), and limiting blocks (222) are respectively arranged on both sides of the auxiliary block (223), and an extrusion telescopic rod (221) is arranged outside the limiting block (222), and the fixed end of the extrusion telescopic rod (221) is connected to the balance frame (213) through a locking block (220), and a plug-in block (219) is arranged in the locking block (220) for controlling the position of the extrusion telescopic rod (221), and the two locking blocks (220) are connected by a connecting rod (218).

8. The automatic tool setting system for 3D printing equipment according to claim 7, characterized in that; The two extrusion telescopic rods (221) are provided with electric control contactors for sending signals to a controller, and the controller controls the rotating motor to turn left or right respectively.

9. The automatic tool setting system for 3D printing equipment according to claim 5, characterized in that: The end of the mating telescopic rod (210) and the balancing frame (213) are connected by a ball head, so that the two sides of the balancing frame (213) can be non-parallel.

10. The automatic tool setting system for 3D printing equipment according to claim 1, characterized in that: The inner cross section of the intermediate hose (54) is the same as the cross section of the regulating ball (59).

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