A jacking method for planar positioning and detecting attitude of an additive manufacturing rudder surface substrate

Abstract

The application discloses a jacking method for plane positioning and detecting posture of a rudder surface substrate in additive manufacturing, and belongs to the technical field of additive manufacturing. The jacking method for plane positioning and detecting posture of a rudder surface substrate in additive manufacturing comprises the following steps: step 1, plane positioning of the rudder surface substrate is performed by using a plane positioning unit; and step 2, a jacking unit is driven to move in the vertical direction by using a gear transmission unit, so as to realize movement of the rudder surface substrate in the vertical direction. The application can improve the plane positioning efficiency and realize jacking movement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of additive manufacturing, in particular to a plane positioning and posture detection jacking method 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 method for an additive manufacturing rudder surface substrate, to solve the technical problems of the existing jacking method 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 method for an additive manufacturing rudder surface substrate, comprising the following steps:

[0007] Step 1, using a plane positioning unit to position the rudder surface substrate in plane;

[0008] Step 2, using a gear transmission unit to drive the jacking unit to move in the vertical direction, so as to realize the movement of the rudder surface substrate in the vertical direction.

[0009] Further, in step 1, when the plane positioning unit is used to position the rudder surface substrate in plane, the first positioning pin and the second positioning pin on the positioning plate are inserted into the first positioning pin hole and the second positioning pin hole on the rudder surface substrate.

[0010] Further, in step 1, a posture detection unit is used to detect whether the rudder surface substrate is in an inclined state.

[0011] Further, in step 1, the posture detection unit includes a first proximity sensor and a second proximity sensor.

[0012] Further, in step 1, 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.

[0013] Further, in step 1, during the planar positioning of the control surface substrate by the planar positioning unit, if the pressure data measured by the first proximity sensor and the second proximity sensor are different, the operator adjusts the installation state of the control surface substrate according to the received feedback information.

[0014] Further, in step 1, if the pressure data measured by the first proximity sensor and the second proximity sensor are the same, the operation in step 2 is started.

[0015] Further, in step 2, during the movement of the lifting unit in the vertical direction by the gear transmission unit, the gear transmission unit is first started, the gear transmission unit provides rotary power to the lead screw, and the lead screw moves upward in the vertical direction synchronously with the positioning plate at the top and the bottom plate at the bottom.

[0016] Further, in step 2, when lifting the control surface substrate, the servo motor drives the driving gear to rotate through the reducer, the driving gear drives the lead screw nut to rotate through the driven gear, and the lead screw nut rotates to drive the positioning plate to move up and down.

[0017] Further, in step 2, the lead screw moves in the vertical direction guided by the first guide rod to the fourth guide rod, and the positioning plate and the bottom plate fixedly connected with the lead screw move synchronously in the vertical direction with the lead screw.

[0018] Compared with the prior art, the present application can achieve at least one of the following beneficial effects:

[0019] (1) The present application realizes the precise positioning of the control surface substrate and the lifting of the workpiece on the control surface substrate.

[0020] (2) The lifting method of the present application can realize the tilt detection function of the control surface substrate, ensure the correct placement of the control surface substrate and ensure its stable state.

[0021] (3) The present application can realize the lifting movement while improving the planar positioning efficiency, and the overall structure of the mechanism is simple, which is convenient for processing, assembly and maintenance.

[0022] The technical solutions in the present application can be combined with each other to realize more preferred combination solutions. Other features and advantages of the present application will be described in the following description, and some advantages will become apparent from the description, or will be understood by those skilled in the art through implementation of the present application. The objects and other advantages of the present application can be realized and obtained through the specific embodiments described in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are included to provide a further understanding of the present application, and are incorporated herein and constitute a part of the detailed description. The drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0024] Figure 1a FIG. 1 is a schematic diagram of an overall structure of a jacking system;

[0025] Figure 1b FIG. 2 is a schematic diagram of an overall structure of a jacking system Figure 2 ;

[0026] Figure 2 FIG. 3 is a schematic diagram of a structure of a positioning plate;

[0027] Figure 3 FIG. 4 is a schematic diagram of a structure of a jacking unit and a gear transmission unit;

[0028] Figure 4 FIG. 5 is a schematic diagram of a structure of a transmission unit;

[0029] Figure 5 FIG. 6 is a schematic diagram of a flow of a jacking method of the present application.

[0030] Reference signs:

[0031] 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

[0032] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, which form a part of this application. The accompanying drawings illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application, but are not intended to limit the scope of the present application.

[0033] In one aspect, the present application provides a jacking method for planar positioning and detecting the posture of a rudder surface substrate in additive manufacturing, referring to Figure 5 , comprising the following steps:

[0034] Step 1, planar positioning of the rudder surface substrate by a planar positioning unit;

[0035] Step 2, driving the jacking unit to move in the vertical direction by a gear transmission unit to realize the movement of the rudder surface substrate in the vertical direction.

[0036] In the above step 1, when the planar positioning unit is used to position the rudder surface substrate, the first positioning pin 1 and the second positioning pin 23 on the positioning plate 2 are inserted into the first positioning pin 1 hole and the second positioning pin 23 hole on the rudder surface substrate.

[0037] In the above step 1, the positioning posture detection unit is used to detect whether the rudder surface substrate is in an inclined state.

[0038] In the above step 1, the positioning posture detection unit includes a first proximity sensor 3 and a second proximity sensor 24.

[0039] In the above step 1, the first proximity sensor 3 is located on the same side as the first positioning pin 1, the second proximity sensor 24 is located on the same side as the second positioning pin 23, and the first proximity sensor 3 and the second proximity sensor 24 are located on the opposite side of the line connecting the first positioning pin 1 and the second positioning pin 23.

[0040] In the above step 1, during the planar positioning of the rudder surface substrate by the planar positioning unit, if the pressure data measured by the first proximity sensor 3 and the second proximity sensor 24 are different, the operator adjusts the installation state of the rudder surface substrate according to the received feedback information.

[0041] In the above step 1, if the pressure data measured by the first proximity sensor 3 and the second proximity sensor 24 are the same, the operation in step 2 is started.

[0042] In the above step 2, during the movement of the jacking unit in the vertical direction driven by the gear transmission unit, first start the gear transmission unit, and use the gear transmission unit to provide rotary power for the lead screw 8, and the lead screw 8 moves upward in the vertical direction synchronously with the positioning plate 2 at the top and the bottom plate 9 at the bottom.

[0043] In the above step 2, when jacking the rudder surface substrate, the servo motor 10 drives the driving gear 15 to rotate through the reducer, the driving gear 15 drives the lead screw 8 nut to rotate through the driven gear 16, and the lead screw 8 moves up and down when the lead screw 8 nut rotates.

[0044] In step 2, the first guide rod 7 to the fourth guide rod are used as guides when the lead screw 8 moves in the vertical direction, and the positioning plate 2 fixedly connected with the lead screw 8 and the bottom plate 9 move synchronously with the lead screw 8 in the vertical direction.

[0045] In one aspect, the present application provides a lifting system for planar positioning and detecting the posture of a rudder surface substrate, which is used to realize the lifting method described above.

[0046] Specifically, as shown in Figure 1a and Figure 1b , the lifting system of the present application comprises a planar positioning unit, a lifting unit and a gear transmission unit; wherein the planar positioning unit comprises a positioning plate 2, which is arranged below the rudder surface substrate, and the workpiece produced by 3D printing is placed on the rudder surface substrate, and the positioning plate 2 can be accurately positioned with the rudder surface substrate. In addition, the lifting unit and the gear transmission unit are arranged below the positioning unit, and the gear transmission unit is arranged on the lifting unit, which can move the workpiece produced by 3D printing in the vertical direction, thereby facilitating the later handling of the workpiece.

[0047] Compared with the prior art, the present application can accurately position the rudder surface substrate by arranging the positioning plate 2; in addition, the lifting unit and the gear transmission unit can realize the lifting of the workpiece on the rudder surface substrate, which facilitates the later handling.

[0048] 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.

[0049] 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 the workpiece on the rudder surface substrate needs to be lifted, 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 accurate positioning of the rudder surface substrate and lifting the workpiece on the rudder surface substrate.

[0050] To prevent the rudder base plate from tilting due to the first positioning pin 1 and / or the second positioning pin 23 not being inserted into the corresponding positioning pin hole 25 on the rudder base plate, the lifting system of the present invention further includes an attitude detection unit; the attitude detection unit is disposed on the positioning plate 2 and is used to detect whether the rudder base plate is tilted.

[0051] Compared with the prior art, the present invention, by setting an attitude detection unit on the positioning plate 2, can promptly detect the defective phenomenon of the rudder surface base plate tilting, thereby adjusting the rudder surface base plate to make it accurately positioned with the positioning plate 2.

[0052] In order to better detect whether the control surface base plate tilts during lifting, the positioning attitude detection unit of the present invention includes a first proximity sensor 3 and a second proximity sensor 24; the first proximity sensor 3 is disposed near the first positioning pin 1, and the second proximity sensor 24 is disposed near the second positioning pin 23, and the first proximity sensor 3 and the second proximity sensor 24 are located on opposite sides of the line connecting the first positioning pin 1 and the second positioning pin 23.

[0053] Specifically, such as Figure 2 As shown, the positioning plate 2 of the present invention is a rectangular plate with multiple triangular slots. For example, four triangular slots are provided, and the four slots are evenly distributed along the intersection of the two diagonals of the rectangular positioning plate 2. Compared with the prior art, the present invention sets the positioning plate 2 into a slotted structure, which can reduce the weight of the positioning plate 2. When lifting the rudder base plate, the lifting weight can be reduced and the lifting efficiency of the rudder base plate can be improved. In addition, a first proximity sensor 3 and a second proximity sensor 24 are respectively provided on the two opposite short sides of the positioning plate 2. The first proximity sensor 3 is adjacent to the first positioning pin 1, and the second proximity sensor 24 is adjacent to the second positioning pin 23. The first proximity sensor 3 and the second proximity sensor 24 are located on opposite sides of the line connecting the first positioning pin 1 and the second positioning pin 23. The purpose of this arrangement is that when the rudder base plate is placed on the positioning plate 2, if the rudder base plate is placed close to the positioning plate 2, the pressure data measured by the first proximity sensor 3 and the second proximity sensor 24 are the same. Once the rudder base plate is tilted to the positioning plate 2, since the first positioning pin 1 or the second positioning pin 23 is not inserted into the corresponding positioning pin hole 25 and is pressing against the rudder base plate, the pressure data measured by the proximity sensor adjacent to the positioning pin that plays a supporting role will be less than the pressure data measured by the other proximity sensor, thereby detecting that the rudder base plate is tilted. At this time, the operator can adjust the installation state of the rudder base plate in time according to the feedback information received, thereby achieving accurate positioning of the rudder base plate.

[0054] In order to realize the jacking of the rudder surface substrate, 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 all 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.

[0055] Specifically, as shown in Figure 3 and Figure 4 , the support plate 5 of the present application is installed on the frame of the printing platform of the 3D printing production line, 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 substrate needs to be jacked up, the rudder surface substrate is first accurately 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 together with the positioning plate 2 at the top and the bottom plate 9 at the bottom, thereby realizing the jacking of the rudder surface substrate.

[0056] 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 lead screw nut 26 and a lead screw fixing plate 6; wherein the lead screw fixing plate 6 is arranged on the support plate 5, the lead screw nut 26 is installed on the lead screw fixing plate 6, and the driven gear 16 is installed on the lead screw nut 26; the driving gear 15 is also arranged above the lead 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.

[0057] Specifically, the lead screw fixing plate 6 is arranged on the support plate 5, and the size of the lead screw fixing plate 6 is smaller than that of the support plate 5, both the lead screw fixing plate 6 and the support plate 5 are rectangular plates, the lead screw fixing plate 6 and the support plate 5 are accurately positioned through shaft hole cooperation, and then are connected and fixed together through bolts. When the rudder surface substrate 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 lead screw nut 26 to rotate through the driven gear 16, and the lead screw 8 drives the positioning plate 2 to move up and down when the lead screw nut 26 rotates.

[0058] It should be noted that the both ends of the lead screw 8 of the present application are directional structures, the driven gear 16 drives the lead screw nut 26 to rotate, at this time, the lead screw 8 does not rotate synchronously but only moves in the vertical direction, this design can reduce the layout space of the lead screw 8, and at the same time, the movement space of the lead screw 8 is compressed, thereby avoiding the waste of the movable part of the lead screw 8.

[0059] In order to guide the lead screw 8 to avoid the lead screw 8 from shaking in the working process, the jacking unit further comprises a plurality of guide rods arranged in parallel with the lead screw 8, and 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 are fixed on the lower bottom surface of the positioning plate 2; the plurality of guide rods pass through the support plate 5 through the corresponding guide rod sleeves.

[0060] Specifically, as shown in Figure 1a and Figure 1b , the support plate 5 of the application is provided with a plurality of guide rods, for example, four guide rods are arranged on the support plate 5, including the first guide rod 7, the second guide rod, the third guide rod and the fourth guide rod, in addition, the first guide rod sleeve 4, the second guide rod sleeve, the third guide rod sleeve and the fourth guide rod sleeve are also arranged 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 are fixed on the positioning plate 2, the first guide rod 7 to the fourth guide rod pass through the support plate 5 through the corresponding guide rod sleeves, when the rudder surface substrate 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 lead screw nut 26 to rotate to realize the rotation of the lead screw nut 26, when the lead screw nut 26 rotates, the lead screw 8 does not rotate, it only moves in the vertical direction, when the lead screw 8 moves in the vertical direction, the first guide rod 7 to the fourth guide rod are guided, the positioning plate 2 and the bottom plate 9 fixedly connected with the lead screw 8 move synchronously with the lead screw 8 in the vertical direction, the first guide rod 7 to the fourth guide rod can ensure that the lead screw 8 does not shake in the working state.

[0061] It should be emphasized that the first guide rod sleeve 4 to the fourth guide rod sleeve of the application are arranged above the support plate 5, and the first guide rod sleeve 4 to the fourth guide rod sleeve adopt this reverse installation mode to compress the movement space of the lead screw 8 and reduce the activity space of the lead screw 8.

[0062] In order to further reduce the activity space occupied by the lead screw 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.

[0063] Specifically, as shown in Figure 1a and Figure 1b , when the lead screw 8 drives the bottom plate 9 to move upwards, 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 and the speed reducer 11 and the servo motor 10 are on the same vertical line, when the lead screw 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 lead screw 8.

[0064] In order to firmly fix the top end faces of the first guide rod 7 to the fourth guide rod and the lead screw 8 below the positioning plate 2, a plurality of cylindrical head countersunk holes are arranged on the bottom surface of the positioning plate 2 of the application, and the top ends of the lead screw 8 and the plurality of guide rods are fixed in the cylindrical head countersunk holes through bolts.

[0065] 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 drag chain 12 is arranged for the movement protection 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 on the positioning plate 2, which are all connected by bolts.

[0066] It should be emphasized that, as shown in Figure 1b The application further comprises a lower sensor bracket 22 and a sensor pad 18 arranged above the support plate 5, and a lower limit sensor 17 is fixed on the sensor pad 18; the lower limit sensor 17 is used to detect the lowest safe limit position of the positioning plate 2 when the jacking mechanism is descending, and the sensor pad 18 is used to fix the lower limit sensor 17.

[0067] A sensor bracket 19 is arranged below the support plate 5 and aligned with the sensor pad 18, and an 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 ascending accurate position when the jacking unit is ascending. In addition, an 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 ascending.

[0068] In summary, the application can realize the accurate positioning of the rudder surface base plate by arranging the first positioning pin 1 and the second positioning pin 23 on the positioning plate 2. The application can realize the rudder surface base plate tilt detection function and ensure the correct placement and stable state of the rudder surface base plate by arranging the first proximity sensor 3 beside the first positioning pin 1 and the second proximity sensor 24 beside the second positioning pin 23. The application can reduce the space occupied by the lead screw 8 and the space layout by arranging the first guide rod sleeve 4 to the fourth guide rod sleeve above the support plate 5 and arranging the accommodating groove on the bottom plate 9. The application can realize the jacking movement while improving the plane positioning efficiency, and the overall structure of the mechanism is simple, which is convenient for processing, assembly and maintenance.

[0069] The above description is only the preferred 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 in the protection scope of the application.

Claims

1. A lifting method for planar positioning and attitude detection of an additively manufactured rudder surface substrate, characterized in that, Includes the following steps: Step 1: Use a planar positioning unit to perform planar positioning on the control surface base plate; Step 2: Use the gear transmission unit to drive the lifting unit to move in the vertical direction, so as to realize the movement of the control surface base plate in the vertical direction; In step 1, when the planar positioning unit is used to perform planar positioning on the rudder surface substrate, the first positioning pin and the second positioning pin on the positioning plate are inserted into the first positioning pin hole and the second positioning pin hole on the rudder surface substrate respectively. The positioning attitude detection unit is used to detect whether the control surface base plate is tilted. 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. During the planar positioning of the control surface base plate using the planar positioning unit, if the pressure data measured by the first proximity sensor and the second proximity sensor are different, the operator adjusts the installation status of the control surface base plate according to the feedback information received. If the pressure data measured by the first proximity sensor and the second proximity sensor are the same, then the operation in step 2 begins.

2. The lifting method for planar positioning and attitude detection of the additive manufacturing rudder surface substrate according to claim 1, characterized in that, In step 2, during the process of driving the lifting unit to move vertically using the gear transmission unit, the gear transmission unit is first started to provide rotational power to the lead screw. The lead screw, together with the top positioning plate and the bottom base plate, moves upward in the vertical direction synchronously.

3. The lifting method for planar positioning and attitude detection of the additive manufacturing rudder surface substrate according to claim 2, characterized in that, In step 2, when the rudder base plate is lifted, the servo motor drives the drive gear to rotate through the reducer, and the drive gear drives the lead screw nut to rotate through the driven gear. When the lead screw nut rotates, the lead screw drives the positioning plate to move up and down.

4. The lifting method for planar positioning and attitude detection of the additive manufacturing rudder surface substrate according to claim 3, characterized in that, In step 2, when the lead screw moves in the vertical direction, it is guided by the first guide rod to the fourth guide rod, and the positioning plate and the base plate, which are fixedly connected to the lead screw, move synchronously with the lead screw in the vertical direction.

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