A jacking system for planar positioning and detecting the attitude of an additively manufactured rudder surface substrate

Abstract

The application discloses a plane positioning and posture detecting jacking system for additive manufacturing of a rudder surface substrate, and belongs to the technical field of additive manufacturing.The technical problem that the existing jacking system cannot accurately position the rudder surface substrate and occupies a large space during jacking is solved.The plane positioning and posture detecting jacking system for additive manufacturing of a rudder surface substrate comprises a plane positioning unit, a jacking unit and a gear transmission unit.The plane positioning unit comprises a positioning plate, which is arranged below the rudder surface substrate and is used for plane positioning of the lower end surface of the rudder surface substrate.The jacking unit is arranged below the plane positioning unit and is fixedly connected with the plane positioning unit.The gear transmission unit is arranged on the jacking unit and is used for driving the jacking unit to move in the vertical direction, so that the rudder surface substrate is jacked in the vertical direction.The plane positioning efficiency is improved, the jacking movement is realized, and the overall structure of the system is simple, so that the system is convenient to process, assemble and maintain.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of additive manufacturing technology, in particular to a plane positioning and posture detection jacking system for an additive manufacturing rudder surface substrate. BACKGROUND

[0002] In the existing 3D printing industry, most of the devices for screw nut structure adopt screw rotation and nut up-down movement structure, that is, the screw has a fixed side and a floating side, the motor is connected with the screw through a speed reducer, and the rotation of the motor drives the rotation of the screw, so as to realize the movement of the screw nut. This way needs a large space in the axial direction of the screw, which is not conducive to space compression in the axial direction of the screw.

[0003] For the workpiece substrate conveying of 3D production line, it is necessary to ensure the accurate positioning of the rudder surface substrate, and to automatically detect when the rudder surface substrate is not accurately positioned, while avoiding the waste of useless height during lifting. Therefore, it is necessary to study a lifting mechanism that can automatically detect whether the jacked rudder surface is inclined, in order to solve the above requirements. SUMMARY

[0004] In view of the above analysis, the present application aims to provide a plane positioning and posture detection jacking system for an additive manufacturing rudder surface substrate, to solve the technical problems of the existing jacking system that cannot accurately position the rudder surface substrate and occupies a large space during jacking.

[0005] The main purpose of the present application is achieved by the following technical solutions:

[0006] The present application provides a plane positioning and posture detection jacking system for an additive manufacturing rudder surface substrate, comprising a plane positioning unit, a jacking unit and a gear transmission unit;

[0007] The plane positioning unit comprises a positioning plate, which is arranged below the rudder surface substrate and is used for plane positioning of the lower end surface of the rudder surface substrate;

[0008] The jacking unit is arranged below the plane positioning unit and is fixedly connected thereto, and the gear transmission unit is arranged on the jacking unit and is used to drive the jacking unit to move in the vertical direction, so as to realize the jacking of the rudder surface substrate in the vertical direction.

[0009] In a possible design, the positioning plate is provided with a first positioning pin and a second positioning pin.

[0010] In a possible design, the bottom surface of the rudder surface substrate is provided with a first positioning pin hole and a second positioning pin hole, the first positioning pin can be inserted into the first positioning pin hole, and the second positioning pin can be inserted into the second positioning pin hole.

[0011] In a possible design, the jacking system further comprises a posture detection unit; the posture detection unit is arranged on the positioning plate, and is configured to detect whether the rudder surface base plate is in an inclined state.

[0012] In a possible design, the posture detection unit comprises a first proximity sensor and a second proximity sensor.

[0013] The first proximity sensor is located on the same side of the first positioning pin, the second proximity sensor is located on the same side of the second positioning pin, and the first proximity sensor and the second proximity sensor are located on the opposite side of the line connecting the first positioning pin and the second positioning pin.

[0014] In a possible design, the jacking unit comprises a support plate, a lead screw and a bottom plate; the support plate and the bottom plate are arranged below the positioning plate in sequence and parallel to each other.

[0015] The positioning plate, the support plate and the bottom plate are connected through the lead screw; a gear transmission unit is arranged on the support plate, and the gear transmission unit is configured to provide rotary power for the lead screw, and the lead screw can drive the positioning plate at the top and the bottom plate at the bottom to move in the vertical direction.

[0016] In a possible design, the gear transmission unit comprises a servo motor, a speed reducer, a driving gear, a driven gear, a lead screw nut and a lead screw fixing plate.

[0017] In a possible design, the lead screw fixing plate is arranged on the support plate, the lead screw nut is mounted on the lead screw fixing plate, and the driven gear is mounted on the lead screw nut; the driving gear is arranged above the lead screw fixing plate, the speed reducer and the servo motor are sequentially arranged below the support plate, and the driving gear is arranged on the shaft of the speed reducer.

[0018] In a possible design, the jacking unit further comprises a plurality of guide rods arranged in parallel with the lead screw, and a plurality of guide rod sleeves equal in number to the guide rods are arranged above the support plate.

[0019] The bottom ends of the plurality of guide rods are fixed to the bottom plate, and the top ends of the plurality of guide rods are fixed to the lower bottom surface of the positioning plate; the plurality of guide rods pass through the support plate through the corresponding guide rod sleeves.

[0020] In a possible design, a plurality of cylindrical countersunk holes are arranged on the bottom surface of the positioning plate, and the top ends of the lead screw and the plurality of guide rods are fixed to the cylindrical countersunk holes through bolts.

[0021] In a possible design, the bottom plate is provided with a containing groove capable of containing the servo motor and the speed reducer.

[0022] Compared with the prior art, the present application can at least achieve one of the following beneficial effects:

[0023] (1) The application utilizes a gear transmission unit to drive the jacking unit, the jacking unit exerts upward supporting force on the positioning plate, the first positioning pin can be inserted into the first positioning pin hole, and the second positioning pin can be inserted into the second positioning pin hole, thereby realizing accurate positioning of the rudder surface base plate and jacking of the workpiece on the rudder surface base plate.

[0024] (2) By arranging the first proximity sensor beside the first positioning pin and the second proximity sensor beside the second positioning pin, the rudder surface base plate inclination detection function can be realized, and the correct placement of the rudder surface base plate and the stable state thereof can be ensured.

[0025] (3) The application can reduce the activity space occupied by the lead screw and the space layout by arranging the first guide rod sleeve to the fourth guide rod sleeve above the supporting plate and arranging the accommodating groove on the bottom plate.

[0026] (4) The application can realize jacking movement while improving the plane positioning efficiency, and the overall structure inside the mechanism is simple, facilitating processing, assembly and maintenance.

[0027] In the application, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the application will be described in the subsequent specification, and some advantages will become apparent from the specification or be understood by implementing the application. The purpose and other advantages of the application can be realized and obtained from the contents specifically indicated in the specification, examples and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] The drawings are only for the purpose of illustrating specific embodiments and are not considered as limiting the application, and in the entire drawings, the same reference signs represent the same parts.

[0029] Figure 1a It is a whole structure schematic view of the jacking system;

[0030] Figure 1b It is a whole structure schematic view of the jacking system Figure Two ;

[0031] Figure 2 It is a structure schematic view of the positioning plate;

[0032] Figure 3 It is a structure schematic view of the jacking unit and the gear transmission unit;

[0033] Figure 4 It is a structure schematic view of the transmission unit.

[0034] REFERENCE SIGNS:

[0035] 1-first positioning pin; 2-positioning plate; 3-first proximity sensor; 4-first guide rod sleeve; 5-supporting plate; 6-screw fixing plate; 7-first guide rod; 8-screw; 9-bottom plate; 10-servo motor; 11-reducer; 12-tow chain; 13-tow chain plate fixed side; 14-tow chain plate moving side; 15-driving gear; 16-driven gear; 17-lower limit sensor; 18-sensor cushion block; 19-sensor support; 20-upper sensor; 21-upper limit sensor; 22-lower sensor support; 23-second positioning pin; 24-second proximity sensor; 25-positioning pin hole; 26-screw nut. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in detail below with reference to the drawings, which form a part of this application. The drawings, together with the description, are used to explain the principles of the application and to enable those skilled in the art to implement the application.

[0037] The present application provides a kind of plane positioning and detecting posture of rudder surface substrate of additive manufacturing, it includes plane positioning unit, jacking unit and gear transmission unit;Plane positioning unit includes positioning plate 2, positioning plate 2 is located below the rudder surface substrate, positioning plate 2 is used to carry out plane positioning to the lower end surface of rudder surface substrate;Jacking unit is located below plane positioning unit and is fixedly connected, gear transmission unit is located on jacking unit, and gear transmission unit is used to drive jacking unit to move in vertical direction, to realize the jacking of rudder surface substrate in vertical direction.

[0038] Specifically, as shown in Figure 1a And Figure 1b The jacking system of the present application includes plane positioning unit, jacking unit and gear transmission unit;Wherein, plane positioning unit includes positioning plate 2, positioning plate 2 is located below the rudder surface substrate, 3D printing production workpiece is placed on the rudder surface substrate, positioning plate 2 can be accurately positioned with rudder surface substrate.In addition, jacking unit and gear transmission unit are provided below positioning unit, gear transmission unit is located on jacking unit, and the workpiece of 3D printing production can be moved in vertical direction by using jacking unit, thereby facilitating the later handling of workpiece.

[0039] Compared with prior art, the present application can realize accurate positioning of rudder surface substrate by setting positioning plate 2;In addition, jacking of workpiece on rudder surface substrate can be realized by jacking unit and gear transmission unit, which facilitates its later handling.

[0040] In order to further accurately position the rudder surface substrate, the positioning plate 2 of the present application is provided with a first positioning pin 1 and a second positioning pin 23; the bottom surface of the rudder surface substrate is provided with a first positioning pin 1 hole and a second positioning pin 23 hole, the first positioning pin 1 can be inserted into the first positioning pin 1 hole, and the second positioning pin 23 can be inserted into the second positioning pin 23 hole.

[0041] Specifically, the first positioning pin 1 can be inserted into the first positioning pin 1 hole, and the second positioning pin 23 can be inserted into the second positioning pin 23 hole; when it is necessary to lift the workpiece on the rudder surface substrate, the lifting unit is driven by the gear transmission unit, and the lifting unit applies an upward supporting force to the positioning plate 2, thereby achieving the accurate positioning of the rudder surface substrate and the movement of the workpiece on the rudder surface substrate in the vertical direction.

[0042] In order to avoid the inclination of the rudder surface substrate caused by the fact that the first positioning pin 1 and / or the second positioning pin 23 are not inserted into the corresponding positioning pin hole 25 on the rudder surface substrate, the lifting system of the present application further comprises a posture detection unit; the posture detection unit is arranged on the positioning plate 2, and is used to detect whether the rudder surface substrate is in an inclined state.

[0043] Compared with the prior art, by arranging the posture detection unit on the positioning plate 2, the present application can timely discover the undesirable phenomenon of the inclination of the rudder surface substrate, so as to timely adjust the rudder surface substrate to accurately position it with the positioning plate 2.

[0044] In order to better detect whether the rudder surface substrate is inclined when being lifted, the positioning posture detection unit of the present application comprises a first proximity sensor 3 and a second proximity sensor 24; the first proximity sensor 3 is arranged adjacent to the first positioning pin 1, and the second proximity sensor 24 is arranged adjacent to the second positioning pin 23; the first proximity sensor 3 and the second proximity sensor 24 are located on the opposite sides of the line connecting the first positioning pin 1 and the second positioning pin 23.

[0045] Specifically, as shown in Figure 2As shown in the drawings, the positioning plate 2 of the present application is a rectangular plate, and a plurality of triangular hollow grooves are arranged on the rectangular plate, for example, four triangular hollow grooves are arranged, and the four hollow grooves are evenly distributed along the intersection of the two diagonal lines of the rectangular positioning plate 2; compared with the prior art, the positioning plate 2 of the present application is arranged in the form of a hollow groove, which can reduce the weight of the positioning plate 2, and when the rudder surface base plate is jacked up, the jacking weight can be reduced, and the jacking efficiency of the rudder surface base plate is improved. In addition, the first proximity sensor 3 and the second proximity sensor 24 are respectively arranged on the two opposite short sides of the positioning plate 2, the first proximity sensor 3 is adjacent to the first positioning pin 1, the second proximity sensor 24 is adjacent to the second positioning pin 23, and the first proximity sensor 3 and the second proximity sensor 24 are located on the opposite sides of the line connecting the first positioning pin 1 and the second positioning pin 23. The purpose of such arrangement is that when the rudder surface base plate is placed on the positioning plate 2, if the rudder surface base plate is placed in close contact with the positioning plate 2, at this time, the pressure data measured by the first proximity sensor 3 and the second proximity sensor 24 is the same; once the rudder surface base plate is placed in an inclined state with the positioning plate 2, at this time, since the first positioning pin 1 or the second positioning pin 23 does not insert into the corresponding positioning pin hole 25 and abuts against the rudder surface base plate, the pressure data measured by the proximity sensor adjacent to the supporting positioning pin is smaller than the pressure data measured by the other proximity sensor, so that it is detected that the rudder surface base plate is in an inclined state, at this time, the operator can timely adjust the installation state of the rudder surface base plate according to the received feedback information, so as to realize the precise positioning of the rudder surface base plate.

[0046] In order to realize the jacking of the rudder surface base plate, the jacking unit of the present application comprises a support plate 5, a lead screw 8 and a lead screw fixing plate 6; the support plate 5 and the lead screw fixing plate 6 are sequentially arranged in parallel below the positioning plate 2; the positioning plate 2, the support plate 5 and the lead screw fixing plate 6 are connected through the lead screw 8; a gear transmission unit is arranged on the support plate 5, and the gear transmission unit is used to provide rotary power for the lead screw 8, and the lead screw 8 can drive the positioning plate 2 at the top and the bottom plate 9 at the bottom to move in the vertical direction.

[0047] Specifically, as shown in the drawings, Figure 3 and 4 The support plate 5 of the present application is installed on the frame of the printing platform of the 3D printing production line, and the support plate 5 is arranged below the positioning plate 2, and the positioning plate 2, the support plate 5 and the bottom plate 9 are fixedly connected through the lead screw 8, wherein the gear transmission unit is arranged on the support plate 5, when the rudder surface base plate needs to be jacked up, the rudder surface base plate is first precisely positioned with the positioning plate 2, after positioning, the gear transmission unit is started, the gear transmission unit can provide rotary power for the lead screw 8, at this time, the lead screw 8 can move upward in the vertical direction synchronously with the positioning plate 2 at the top and the bottom plate 9 at the bottom, thereby realizing the jacking of the rudder surface base plate.

[0048] In order to reduce the lifting space, the gear transmission unit of the present application comprises a servo motor 10, a speed reducer, a driving gear 15, a driven gear 16, a screw nut 26 and a screw fixing plate 6; wherein the screw fixing plate 6 is arranged on the support plate 5, the screw nut 26 is installed on the screw fixing plate 6, and the driven gear 16 is installed on the screw nut 26; the driving gear 15 is also arranged above the screw fixing plate 6, the speed reducer 11 and the servo motor 10 are sequentially arranged below the support plate 5, and the driving gear 15 is arranged on the shaft of the speed reducer 11.

[0049] Specifically, the screw fixing plate 6 is arranged on the support plate 5, and the size of the screw fixing plate 6 is smaller than that of the support plate 5; both the screw fixing plate 6 and the support plate 5 are rectangular plates, the screw fixing plate 6 and the support plate 5 are precisely positioned through the shaft hole cooperation, and then are connected and fixed together through bolts. When the rudder surface base plate needs to be jacked up, the servo motor 10 drives the driving gear 15 to rotate through the speed reducer 11, the driving gear 15 drives the screw nut 26 to rotate through the driven gear 16, and the screw nut 26 drives the positioning plate 2 to move up and down when rotating.

[0050] It should be noted that the both ends of the screw 8 are directional structures, the screw nut 26 is driven to rotate by the driven gear 16, at this time, the screw 8 does not rotate synchronously but only moves in the vertical direction, this design can reduce the layout space of the screw 8, and at the same time, the movement space of the screw 8 is compressed, so that the waste of the movable part of the screw 8 is avoided.

[0051] In order to guide the screw 8 to avoid shaking during the working process, the jacking unit of the present application further comprises a plurality of guide rods arranged in parallel with the screw 8, a plurality of guide rod sleeves equal to the number of guide rods are arranged above the support plate 5; the bottom ends of the plurality of guide rods are fixed on the bottom plate 9, and the top ends thereof are fixed on the lower bottom surface of the positioning plate 2; the plurality of guide rods penetrate through the support plate 5 through the corresponding guide rod sleeves.

[0052] Specifically, as shown in Figure 1a and Figure 1bAs shown, the support plate 5 of the application is provided with a plurality of guide rods, for example, four guide rods are provided on the support plate 5, including a first guide rod 7, a second guide rod, a third guide rod and a fourth guide rod, in addition, a first guide rod sleeve 4, a second guide rod sleeve, a third guide rod sleeve and a fourth guide rod sleeve are also provided on the support plate 5, wherein the bottom ends of the first guide rod 7 to the fourth guide rod are fixed on the bottom plate 9, and the top ends thereof are fixed on the positioning plate 2, the first guide rod 7 to the fourth guide rod passes through the support plate 5 through the corresponding guide rod sleeve, when the rudder surface base plate needs to be lifted, the servo motor 10 drives the driving gear 15 to rotate through the speed reducer 11, the driving gear 15 drives the driven gear 16 on the screw nut 26 to rotate to realize the rotation of the screw nut 26, when the screw nut 26 rotates, the screw rod 8 does not rotate, it only moves in the vertical direction, when the screw rod 8 moves in the vertical direction, the first guide rod 7 to the fourth guide rod is used as a guide, the positioning plate 2 and the bottom plate 9 fixedly connected with the screw rod 8 move synchronously with the screw rod 8 in the vertical direction, the first guide rod 7 to the fourth guide rod can ensure that the screw rod 8 does not shake in the working state.

[0053] It should be emphasized that the first guide rod sleeve 4 to the fourth guide rod sleeve of the application are all arranged above the support plate 5, and the first guide rod sleeve 4 to the fourth guide rod sleeve adopts this reverse installation mode to compress the movement space of the screw rod 8 and reduce the activity space of the screw rod 8.

[0054] In order to further reduce the activity space occupied by the screw rod 8, the bottom plate 9 of the application is provided with a containing groove, which can accommodate the servo motor 10 and the speed reducer 11.

[0055] Specifically, as shown in Figure 1a and Figure 1b When the screw rod 8 drives the bottom plate 9 to move upward, because the speed reducer 11 and the servo motor 10 arranged below the support plate 5 occupy a certain space, the bottom plate 9 cannot be attached to the bottom of the support plate 5, the application sets a containing groove on the bottom plate 9, the containing groove is on the same vertical line with the speed reducer 11 and the servo motor 10, when the screw rod 8 drives the bottom plate 9 to move below the support plate 5, the speed reducer 11 and the servo motor 10 can be accommodated in the containing groove, so that the top surface of the floor and the bottom of the support plate 5 are attached together, thereby reducing the setting space of the screw rod 8.

[0056] In order to firmly fix the top end surface of the first guide rod 7 to the fourth guide rod and the screw rod 8 below the positioning plate 2, the bottom surface of the positioning plate 2 of the application is provided with a plurality of cylindrical countersunk holes, the top ends of the screw rod 8 and the plurality of guide rods are fixed in the cylindrical countersunk holes through bolts.

[0057] The jacking system of the application further comprises a drag chain 12, a drag chain plate fixed side 13 and a drag chain plate moving side 14; wherein the function of the drag chain 12 is to protect the movement of each sensor line and motor line; the fixed side of the drag chain 12 is fixed to the drag chain plate fixed side 13, and the moving side of the drag chain 12 is fixed to the drag chain plate moving side 14; the drag chain plate fixed side 13 is fixed on the platform constructed by aluminum profiles, and the drag chain plate moving side 14 is fixed to the positioning plate 2, both of which are connected by bolts.

[0058] It should be emphasized that, as shown in Figure 1b The lower sensor bracket 22 and the sensor pad 18 are arranged above the support plate 5 of the application, the lower limit sensor 17 is fixed on the sensor pad 18, and the lower limit sensor 17 is used to detect the lowest safe limit position of the positioning plate 2 when the jacking mechanism is lowered, and the sensor pad 18 is used to fix the lower limit sensor 17.

[0059] The sensor bracket 19 is arranged below the support plate 5 and aligned with the sensor pad 18, and the upper sensor 20 is arranged on the sensor bracket 19, wherein the sensor bracket 19 is used to fix the upper sensor 20, and the upper sensor 20 is used to define the specific rising accurate position when the jacking unit is rising. In addition, the upper limit sensor 21 is arranged below the support plate 5, and the upper limit sensor 21 is used to detect the highest safe limit position of the bottom plate 9 when the jacking mechanism is rising.

[0060] In summary, the first positioning pin 1 and the second positioning pin 23 arranged on the positioning plate 2 can realize accurate positioning of the rudder base plate. The first proximity sensor 3 arranged beside the first positioning pin 1 and the second proximity sensor 24 arranged beside the second positioning pin 23 can realize the rudder base plate tilt detection function, ensure the correct placement of the rudder base plate and ensure its stable state. The first guide rod sleeve 4 to the fourth guide rod sleeve arranged above the support plate 5 and the accommodating groove arranged on the bottom plate 9 can reduce the activity space occupied by the lead screw 8 and the space layout. The application can improve the plane positioning efficiency while realizing the jacking movement, and the overall structure of the mechanism is simple, which is convenient for processing, assembly and maintenance.

[0061] The above is only the preferred specific embodiment of the application, but the protection scope of the application is not limited to this. Any changes or replacements within the technical range disclosed by the application can be easily thought by those skilled in the art, which should be covered within the protection scope of the application.

Claims

1. A lifting system for planar positioning and attitude detection of an additively manufactured rudder surface substrate, characterized in that, It includes a planar positioning unit, a lifting unit, and a gear transmission unit; The planar positioning unit includes a positioning plate, which is disposed below the rudder base plate and is used to perform planar positioning on the lower end surface of the rudder base plate. The lifting unit is located below the planar positioning unit and the two are fixedly connected. The gear transmission unit is located on the lifting unit and is used to drive the lifting unit to move in the vertical direction, so as to realize the movement of the rudder base plate in the vertical direction. The positioning plate is provided with a first positioning pin and a second positioning pin; The bottom surface of the rudder base plate is provided with a first positioning pin hole and a second positioning pin hole. The first positioning pin can be inserted into the first positioning pin hole, and the second positioning pin can be inserted into the second positioning pin hole. The positioning attitude detection unit includes a first proximity sensor and a second proximity sensor; The first proximity sensor and the first positioning pin are located on the same side, the second proximity sensor and the second positioning pin are located on the same side, and the first proximity sensor and the second proximity sensor are located on opposite sides of the line connecting the first positioning pin and the second positioning pin.

2. The lifting system for planar positioning and attitude detection of additive manufacturing rudder surface substrate according to claim 1, characterized in that, The lifting unit includes a support plate, a lead screw, and a base plate; the support plate and the base plate are arranged in parallel below the positioning plate.

3. The lifting system for planar positioning and attitude detection of additive manufacturing rudder surface substrate according to claim 2, characterized in that, The positioning plate, support plate, and base plate are all connected by the lead screw; the gear transmission unit is located on the support plate and is used to provide rotational power to the lead screw, which can drive the top positioning plate and the bottom base plate to move in the vertical direction.

4. The lifting system for planar positioning and attitude detection of additive manufacturing rudder surface substrate according to claim 3, characterized in that, The gear transmission unit includes a servo motor, a reducer, a drive gear, a driven gear, a lead screw nut, and a lead screw fixing plate.

5. The lifting system for planar positioning and attitude detection of the additive manufacturing rudder surface substrate according to claim 4, characterized in that, The lead screw fixing plate is disposed on the support plate, the lead screw nut is mounted on the lead screw fixing plate, and the driven gear is mounted on the lead screw nut.

6. The lifting system for planar positioning and attitude detection of additively manufactured rudder surface substrate according to claim 5, characterized in that, The drive gear is located above the lead screw fixing plate, the reducer and the servo motor are located below the support plate in sequence, and the drive gear is located on the shaft of the reducer.

7. The lifting system for planar positioning and attitude detection of additive manufacturing rudder surface substrate according to claim 6, characterized in that, The base plate is provided with a receiving groove, which can accommodate the servo motor and the reducer.

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