A pressing positioning tool for a frame of a drawing board box

Abstract

The utility model discloses a kind of pressing positioning tool of picture board box frame, including base frame, the inner cavity of base frame movably is provided with two groups of moving plate, the both ends of moving plate are hinged with movable plate, the top of movable plate is provided with the right-angle seat for the positioning of picture board box frame plate, the inner cavity of base frame is provided with the drive assembly for the opposite movement of moving plate, the bottom of moving plate is fixed with fixed base, the outside of fixed base is fixed with fixed frame, the inner cavity of fixed frame is provided with the clamping assembly for the tensioning adjustment of two groups of movable plate, the inside of right-angle seat is fixedly embedded with two groups of pressure sensor. The utility model passes through the two groups of pressure sensor of being set in the inside of right-angle seat, the pressure value of right-angle seat to frame can be measured, cooperate drive assembly and clamping assembly and pressurize adjustment are carried out to frame from two groups of mutually perpendicular direction, ensure that frame is evenly stressed when pressing, can realize pressure automatic regulation.

Description

Technical Field

[0001] This utility model relates to the field of drawing board box manufacturing technology, specifically a pressing and positioning fixture for the frame of a drawing board box. Background Technology

[0002] A drawing board box is a multifunctional portable storage and support tool designed specifically for art creation. Its core function is to integrate "drawing board support" and "art supplies storage," helping creators to carry out painting work efficiently in different scenarios such as indoors and outdoors. It is a common piece of equipment for creators of various painting genres such as oil painting, watercolor, gouache, and sketching. Traditional drawing board boxes are mostly made of wood.

[0003] When processing a drawing board box, the frame is usually processed first, which requires four sets of wooden strips to be joined together, and then pressed and glued. Traditional drawing board box frame pressing fixtures use manual operation of screws to achieve bidirectional extrusion. This results in uneven bidirectional pressure, which leads to frame misalignment and affects the size of the drawing board box frame. Utility Model Content

[0004] The purpose of this utility model is to provide a pressing and positioning fixture for the frame of a drawing board box. The two sets of moving plates are moved towards each other by a driving component, and then the clamping component limits the moving plate from the extension direction of the moving plate, so as to ensure that the pressure on the frame from both sides of the right angle seat is balanced, and to ensure that the frame is pressed neatly and firmly, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressing and positioning fixture for a drawing board box frame, comprising a base frame, two sets of movable plates movably disposed within the inner cavity of the base frame, movable plates hinged to both ends of the movable plates, a right-angle seat for positioning the drawing board box frame plate at the top of the movable plates, a driving component for moving the movable plates toward each other within the inner cavity of the base frame, a fixed seat fixed to the bottom of the movable plates, a fixed frame fixed to the outer side of the fixed seat, and a clamping component for tensioning and adjusting the two sets of movable plates within the inner cavity of the fixed frame; Two sets of pressure sensors are fixedly embedded on the inner side of the right-angle base.

[0006] Preferably, the drive assembly includes a first lead screw rotatably connected to each other within the base frame via bearings, a first lead screw pair is fixedly embedded at the center of the moving plate, the first lead screw threaded through the first lead screw pair, a first motor is fixedly mounted on the outside of the base frame, and the output shaft of the first motor passes through the base frame and is fixedly connected to the end of a set of first lead screws.

[0007] Preferably, the clamping assembly includes two sets of second lead screws rotatably connected inside the fixed base via bearings. One end of the second lead screw is rotatably connected to the inner cavity of the fixed frame via bearings. A second lead screw pair is threaded to the outer side of the second lead screw. A moving block is fixed to the outer side of the second lead screw pair. A limiting rod for limiting and supporting the movable plate is provided on the outer side of the moving block. A rotating assembly for driving the second lead screws is provided on the outer side of the fixed base.

[0008] Preferably, the rotating assembly includes a second motor fixed to the bottom of the fixed base, the output shaft of the second motor is fixed with a drive synchronous pulley, the opposite end of the second lead screw is fixed with a driven synchronous pulley, the drive synchronous pulley and the driven synchronous pulley are connected by a synchronous belt, the bottom of the base frame is provided with a through groove, and the second motor is located in the through groove.

[0009] Preferably, the top of the movable plate has multiple sets of insertion holes, and the bottom of the right-angle seat is fixed with an insertion rod, which is engaged in the insertion hole.

[0010] Preferably, the top of the movable block is rotatably provided with a movable seat, and the limiting rod is fixed to the top of the movable seat.

[0011] Preferably, a controller is provided on the outer side of the base frame, and the controller is electrically connected to the first motor, the second motor and the pressure sensor.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention uses two sets of pressure sensors installed inside the right-angle base to measure the pressure value of the right-angle base on the frame. In conjunction with the drive component and clamping component, the pressure is adjusted from two mutually perpendicular directions to ensure that the frame is evenly stressed during pressing, so as to avoid misalignment of the two vertical sides of the frame or unstable pressing. It can realize automatic pressure adjustment and avoid the problem of uneven pressure caused by traditional manual operation, which can lead to frame misalignment or unstable pressing. By setting two sets of limit rods, it is convenient to rotate and connect the movable seat and the moving block, which can automatically fit the inclined movable plate and ensure the limit support of the movable plate, and is used to adjust the pressure of the right angle seat. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention; Figure 3 This is a bottom-view three-dimensional structural diagram of the fixing frame of this utility model; Figure 4 This is a three-dimensional structural diagram showing the disassembled movable plate and right-angle base of this utility model; Figure 5 This is a three-dimensional structural diagram of the movable block and the movable seat of this utility model.

[0014] The following are the labeling elements in the diagram: 1. Base frame; 2. Moving plate; 3. Movable plate; 4. Right-angle seat; 5. Drive assembly; 51. First lead screw; 52. First lead screw pair; 53. First motor; 6. Fixed seat; 7. Fixed frame; 8. Clamping assembly; 81. Second lead screw; 82. Second lead screw pair; 83. Moving block; 84. Limiting rod; 9. Rotating assembly; 91. Second motor; 92. Drive synchronous pulley; 93. Driven synchronous pulley; 94. Synchronous belt; 10. Pressure sensor; 11. Insertion hole; 12. Insertion rod; 13. Movable seat; 14. Controller. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] This utility model provides, for example Figures 1-5 The shown is a pressing and positioning fixture for the frame of a drawing board box, comprising: Base frame 1; The inner cavity of the base frame 1 is movably provided with two sets of movable plates 2. The two ends of the movable plates 2 are hinged with movable plates 3. The top of the movable plates 3 is provided with a right-angle seat 4 for positioning the frame plate of the drawing board box. The inner cavity of the base frame 1 is provided with a drive assembly 5 for moving the movable plates 2 in opposite directions. The bottom of the movable plates 2 is fixed with a fixed seat 6. The outside of the fixed seat 6 is fixed with a fixed frame 7. The inner cavity of the fixed frame 7 is provided with a clamping assembly 8 for adjusting the tension of the two sets of movable plates 3. Two sets of pressure sensors 10 are fixedly embedded on the inner side of the right-angle base 4.

[0017] The above design uses two sets of pressure sensors 10 located inside the right-angle base 4 to measure the pressure value of the right-angle base 4 on the frame. In conjunction with the drive component 5 and the clamping component 8, pressure is applied to the frame from two mutually perpendicular directions to ensure that the frame is subjected to uniform force at all points during pressing, so as to avoid misalignment of the two vertical edges of the frame or unstable pressing. It can realize automatic pressure adjustment and avoid the problem of frame misalignment or unstable pressing caused by uneven pressure due to traditional manual operation.

[0018] Among them, such as Figure 1-2As shown: The drive assembly 5 includes a first lead screw 51 rotatably connected to each other in the base frame 1 via bearings. A first lead screw pair 52 is fixedly embedded at the center of the movable plate 2. The first lead screw 51 is threaded through the first lead screw pair 52. A first motor 53 is fixed on the outside of the base frame 1. The output shaft of the first motor 53 passes through the base frame 1 and is fixedly connected to the end of a set of first lead screws 51. Through the cooperation of two sets of first lead screws 51 with opposite threads and the first lead screw pair 52, under the drive of the first motor 53, the two sets of movable plates 2 are brought together in the middle. This not only facilitates the movement of the movable plate 3 and the right-angle seat 4 to be brought together in the middle, but also uses the right-angle seat 4 to position the frame of the drawing board box. At the same time, the right-angle seat 4 applies pressure to the frame, ensuring that the two right-angled sides of the frame are pressed together under pressure.

[0019] Furthermore, such as Figure 3 and Figure 5 As shown: The clamping assembly 8 includes two sets of second lead screws 81 rotatably connected to the inside of the fixed base 6 via bearings. One end of the second lead screw 81 is rotatably connected to the inner cavity of the fixed frame 7 via bearings. The outer side of the second lead screw 81 is threadedly connected to a second lead screw pair 82. A moving block 83 is fixed to the outer side of the second lead screw pair 82. A limiting rod 84 is provided on the outer side of the moving block 83 to limit and support the movable plate 3. A rotating assembly 9 is provided on the outer side of the fixed base 6 to drive the second lead screw 81. The rotating assembly 9 drives the second lead screw 81. With the two sets of second lead screws 81 and second lead screw pairs 82 with opposite threads, it is convenient to move the two sets of moving blocks 83 towards each other. Then, the moving block 83 drives the movable base 13 and the limiting rod 84 to move and limit and support the movable plate 3. Adjust the pressure of the side wall of the right angle seat 4 on the frame to ensure that the pressure on the two right angle sides of the frame is the same.

[0020] Preferred, such as Figure 3 As shown: The rotating assembly 9 includes a second motor 91 fixed to the bottom of the fixed base 6. The output shaft of the second motor 91 is fixed with a drive synchronous pulley 92. The opposite end of the second lead screw 81 is fixed with a driven synchronous pulley 93. The drive synchronous pulley 92 and the driven synchronous pulley 93 are connected by a synchronous belt 94. The bottom of the base frame 1 is provided with a through groove. The second motor 91 is located in the through groove. The second motor 91 drives the drive synchronous pulley 92 to rotate. Then, with the cooperation of the synchronous belt 94 and the driven synchronous pulley 93, the two sets of second lead screws 81 are driven to rotate in both directions, thereby adjusting the position of the moving block 83.

[0021] It is worth noting that, such as Figure 4As shown: The top of the movable plate 3 has multiple sets of insertion holes 11, and the bottom of the right-angle seat 4 is fixed with a rod 12. The rod 12 is snapped into the insertion hole 11. Through the cooperation of the rod 12 and the insertion hole 11, the right-angle seat 4 can be installed in different positions on the movable plate 3. At the same time, the orientation of the right-angle seat 4 can be adjusted so that the right-angle seat 4 fits the frame and is used for positioning and adjusting the frame.

[0022] In a further preferred embodiment, such as Figure 5 As shown: A movable seat 13 is rotatably provided on the top of the movable block 83, and a limiting rod 84 is fixed on the top of the movable seat 13. The movable seat 13 is rotatably connected to the movable block 83, so that when the movable block 83 is moved, when one set of limiting rods 84 is in contact with the movable plate 3, the rotation of the movable seat 13 can make both sets of limiting rods 84 simultaneously in contact with the inclined movable plate 3, thus ensuring support for the movable plate 3.

[0023] In addition, such as Figure 1 As shown: A controller 14 is provided on the outside of the base frame 1. The controller 14 is a PLC controller. The controller 14 is electrically connected to the first motor 53, the second motor 91 and the pressure sensor 10. With the cooperation of the controller 14, the pressure of the pressure sensor 10 can be easily adjusted to achieve balanced pressure on both sides of the right angle when the frame of the drawing board is pressed, so as to ensure that the frame is pressed firmly and accurately.

[0024] In practical use, the right-angle base 4 is inserted into the insertion hole 11 through the insertion rod 12 to connect the right-angle base 4 with the movable plate 3. Then, the pressure value of the pressure sensor 10 is set on the controller 14. Next, the four sets of wooden boards of the drawing board box frame are placed inside the right-angle base 4. Then, the first motor 53 is started. The output shaft of the first motor 53 drives the first lead screw 51 to rotate. With the cooperation of the two sets of first lead screw pairs 52, the two sets of movable plates 2 are moved inward. Then, the movable plates 2 drive the right-angle base 4 to close in the middle through the movable plate 3. Then, the right-angle base 4 positions and applies pressure to the two sets of wooden boards, so that the two sets of wooden boards are in contact with each other. At the same time, the pressure sensor 10 monitors the pressure between the right-angle base 4 and the wooden boards on both sides. Simultaneously, the second motor 91 drives the drive synchronous pulley 92 to rotate. The drive synchronous pulley 92, in cooperation with the synchronous belt 94, drives the driven synchronous pulley 93 and the second lead screw 81. The second lead screw 81 moves the two sets of moving blocks 83 towards the middle through the second lead screw pair 82. Then, the moving blocks 83 drive the movable seat 13 to move the limit rod 84. The movable seat 13 adjusts the position of the two sets of limit rods 84 by rotating on the top of the moving blocks 83, so that the two sets of limit rods 84 are simultaneously in contact with the movable plate 3, thereby adjusting the pressure on the right-angle seat 4. The pressure is detected by the pressure sensors 10 on both sides, so that the pressure of the right-angle frame on the frame reaches the pre-set pressure value.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressing and positioning fixture for the frame of a drawing board box, characterized in that, The device includes a base frame, within which two sets of movable plates are movably mounted. Each movable plate has two hinged ends. A right-angle seat is mounted on the top of each movable plate to position the frame of the drawing board box. A drive assembly for moving the movable plates in opposite directions is located within the base frame. A fixed seat is fixed to the bottom of each movable plate, and a fixed frame is fixed to the outer side of the fixed seat. A clamping assembly for adjusting the tension of the two sets of movable plates is located within the fixed frame. Two pressure sensors are embedded within the inner side of the right-angle seat.

2. The pressing and positioning fixture for the frame of a drawing board box according to claim 1, characterized in that: The drive assembly includes a first lead screw rotatably connected to each other within the base frame via bearings. A first lead screw pair is fixedly embedded at the center of the moving plate. The first lead screw thread passes through the first lead screw pair. A first motor is fixed to the outside of the base frame. The output shaft of the first motor passes through the base frame and is fixedly connected to the end of a set of first lead screws.

3. The pressing and positioning fixture for the frame of a drawing board box according to claim 1, characterized in that: The clamping assembly includes two sets of second lead screws rotatably connected inside the fixed base via bearings. One end of the second lead screw is rotatably connected to the inner cavity of the fixed frame via bearings. A second lead screw pair is threaded to the outer side of the second lead screw. A moving block is fixed to the outer side of the second lead screw pair. A limiting rod for limiting and supporting the movable plate is provided on the outer side of the moving block. A rotating assembly for driving the second lead screws is provided on the outer side of the fixed base.

4. The pressing and positioning fixture for the frame of a drawing board box according to claim 3, characterized in that: The rotating assembly includes a second motor fixed to the bottom of the fixed base. The output shaft of the second motor is fixed with a drive synchronous pulley. The opposite end of the second lead screw is fixed with a driven synchronous pulley. The drive synchronous pulley and the driven synchronous pulley are connected by a synchronous belt. The bottom of the base frame is provided with a through groove, and the second motor is located in the through groove.

5. The pressing and positioning fixture for the frame of a drawing board box according to claim 1, characterized in that: The top of the movable plate has multiple sets of insertion holes, and the bottom of the right-angle base is fixed with a plug rod, which is engaged in the insertion hole.

6. The pressing and positioning fixture for the frame of a drawing board box according to claim 3, characterized in that: The top of the movable block is rotatably provided with a movable seat, and the limiting rod is fixed to the top of the movable seat.

7. The pressing and positioning fixture for the frame of a drawing board box according to claim 1, characterized in that: A controller is provided on the outside of the base frame, and the controller is electrically connected to the first motor, the second motor and the pressure sensor.

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