A flexible posture adjustment fixture and method

Abstract

A flexible attitude adjustment fixture and method includes a guide rail (1) and multiple guide rail sliders (2), with the multiple guide rail sliders (2) placed on the guide rail (1). The feature is that a V-shaped movable opening frame (3) is fixedly installed on each guide rail slider (2). The V-shaped movable opening frame (3) includes a base plate (5), a handwheel (6), a lead screw support (14), a positive and negative spiral lead screw (7), a right vertical plate (8), a left vertical plate (9), a left roller (10), a right roller (11), a right stop block (12), a left stop block (13), a right lead screw sleeve (15), a left lead screw sleeve (16), and a fabric belt ring (17). This invention can not only adapt to supporting cylinders of different diameters, eliminating the rigid clamping ring and replacement process of traditional fixtures, but also realize the swaying of the cylinder within a certain range, which is convenient for docking two cylinders.

Description

Technical Field

[0001] This invention relates to a flexible attitude adjustment fixture and method, belonging to the field of automated equipment and mechanical devices. Background Technology

[0002] During cylinder assembly, such as when two cylinders are joined or an object is inserted into a cylinder, the posture of the object or cylinder needs to be adjusted to ensure proper alignment and assembly. Existing manufacturers typically face numerous small-batch production orders, requiring the assembly of objects of varying sizes. Therefore, posture adjustment tooling needs to be flexible enough to accommodate objects of different sizes. Most existing posture adjustment tooling is rigid, such as the method used in patent CN202291830U, which requires changing different clamping rings to support objects of different diameters. The method in patent CN204171918U uses a movable, adjustable V-shaped bracket to support cylinders of different diameters, but the V-block can only adapt to cylinders of different diameters within a relatively narrow range.

[0003] Existing rigid fixtures cannot achieve wobbly docking. Summary of the Invention

[0004] This invention provides a flexible attitude adjustment fixture and method to overcome the shortcomings of the prior art.

[0005] A flexible posture adjustment fixture includes a guide rail 1 and multiple guide rail sliders 2, wherein the multiple guide rail sliders 2 are placed on the guide rail 1, characterized in that a V-shaped movable opening frame 3 is fixedly installed on each guide rail slider 2;

[0006] The V-shaped movable opening frame 3 includes a base plate 5, a handwheel 6, a screw support 14, a positive and negative spiral screw 7, a right vertical plate 8, a left vertical plate 9, a left roller 10, a right roller 11, a right stop block 12, a left stop block 13, a right screw sleeve 15, a left screw sleeve 16, and a fabric belt loop 17; wherein the base plate 5 and the right vertical plate 8 and left vertical plate 9 are respectively connected by pins to form two rotating pairs; the handwheel 6 is fixedly connected to the positive and negative spiral screw 7; the right screw sleeve 15 is hinged to the right vertical plate 8 to form a rotating pair, and the left screw sleeve 16 is hinged to the left vertical plate 9 to form a rotating pair; the positive and negative spiral screw 7 and the right screw... Sleeve 15 and left lead screw sleeve 16 are spirally connected to form a spiral pair; lead screw support 14 is fixed in the middle of base plate 5, and positive and negative spiral lead screws 7 are fixed on lead screw support 14 in the horizontal direction; left roller 10 is hinged to left vertical plate 9, and right roller 11 is hinged to right vertical plate 8; fabric belt loop 17 is wrapped around left roller 10 and right roller 11, and the fabric belt loop 17 is loosened or tightened by left roller 10 and right roller 11; right stop block 12 is hinged to right vertical plate 8, and left stop block 13 is hinged to left vertical plate 9, forming a rotating pair between right stop block 12 and right vertical plate 8 and left stop block 13 and left vertical plate 9;

[0007] During operation, the cylindrical workpiece 4 to be loaded is placed on the cloth belt rings 17 of the two V-shaped movable opening frames 3. The handwheel 6 is turned, which drives the positive and negative spiral screws 7 to rotate. The rotation of the positive and negative spiral screws 7 also drives the right screw sleeve 15 and the left screw sleeve 16 to rotate. The right screw sleeve 15 and the left screw sleeve 16 always remain coaxial with the positive and negative spiral screws 7. Then, the left vertical plate 9 and the right vertical plate 8 rotate outward or inward at the same time to adjust the opening angle of the V-shaped movable opening frame 3, so that the cloth belt rings 17 are tightened or loosened to adjust the height of the cylindrical workpiece 4 to be loaded.

[0008] The materials of the left stop 13 and the right stop 12 are organic polymer materials, fiber-reinforced composite materials or wood materials.

[0009] The material used for the cloth belt loop is nylon fiber, canvas, aramid fiber, or PBO fiber.

[0010] The organic polymer material is nylon, polyurethane, or rubber.

[0011] The method for performing flexible attitude adjustment using the flexible attitude adjustment fixture according to claim 1 includes the following steps:

[0012] Step 1: Install multiple guide rail sliders 2 on the guide rail 1. Each guide rail slider 2 is equipped with a V-shaped movable opening bracket 3.

[0013] Step 2: Adjust the two adjacent V-shaped movable opening frames 3 to open to the set angle;

[0014] Step 3: Install the first cylindrical workpiece to be docked into the two V-shaped movable opening frames 3 described in Step 2, and then adjust the opening angle of the two V-shaped movable opening frames 3 so that the cylindrical workpiece to be docked reaches the set height.

[0015] Step 4: Similar to Step 2 and Step 3, install the second cylindrical workpiece to be docked on the other two V-shaped movable opening frames 3, and adjust it so that the cylindrical workpiece to be docked reaches the set height.

[0016] Step 5: Push the corresponding guide rail slider 2 to bring the adjacent end faces of the first cylindrical workpiece to be docked together with the second cylindrical workpiece to be docked.

[0017] Step 6: If the height of the first cylindrical workpiece to be docked and the second cylindrical workpiece to be docked do not meet the docking requirements, continue to adjust the opening angle of the corresponding V-shaped movable opening frame 3 until the height of the first cylindrical workpiece to be docked and the second cylindrical workpiece to be docked do not meet the docking requirements.

[0018] Step 7: Once the two workpieces to be docked meet the docking requirements, move one of the corresponding guide rail sliders 2 to slowly push the workpiece into the other workpiece.

[0019] Step 8: During the docking process described in Step 7, the V-shaped movable opening frame 3 supporting the workpiece in the cylinder successively fails until the workpiece docking is completed.

[0020] The beneficial effects of this invention are:

[0021] This invention utilizes forward and reverse spiral screws to simultaneously drive two uprights to rotate in opposite directions, facilitating adjustment of the opening angle of the V-shaped movable opening frame and the height of the fabric belt loop to accommodate cylinders of different diameters and adjust the cylinder height. This method eliminates the need to change different fixtures when supporting objects of different diameters; using a flexible body reduces wear on the object compared to a rigid body, and allows for wobbly docking.

[0022] This invention can not only adapt to supporting cylinders of different diameters, eliminating the need for traditional rigid clamping rings and replacement processes, but also allows the cylinder to sway within a certain range, facilitating the docking of two cylinders. Attached Figure Description

[0023] Figure 1 1. Schematic diagram of the tooling structure of the present invention;

[0024] Figure 2 1. Schematic diagram of the V-shaped movable opening frame 3 of the present invention;

[0025] Figure 3 A three-dimensional structural diagram of the V-shaped movable opening frame 3 of the present invention;

[0026] Figure 4 A schematic diagram of the V-shaped movable opening frame of the present invention in three major angle opening states;

[0027] Figure 5 A three-dimensional schematic diagram of the V-shaped movable opening frame of the present invention in three major angle opening states;

[0028] Figure 6 A schematic diagram of the V-shaped movable opening frame 3 in a small-angle open state according to the present invention;

[0029] Figure 7 A three-dimensional schematic diagram of the V-shaped movable opening frame of the present invention in a small-angle open state;

[0030] Figure 8 A schematic diagram of the docking state of the two workpieces in this invention;

[0031] Figure 9 A schematic diagram of the two workpieces in the ready-to-be-fitted state according to the present invention;

[0032] Figure 10 A schematic diagram of the process of preparing two workpieces to be sleeved together according to the present invention;

[0033] Figure 11 ,for Figure 103D diagram;

[0034] Figure 12 A schematic diagram of two workpieces being fully fitted together according to the present invention;

[0035] In the diagram, 1 is the guide rail, 2 is the guide rail slider, 3 is the V-shaped movable opening frame, 4 is the cylindrical product, 5 is the base plate, 6 is the handwheel, 7 is the forward and reverse spiral screw, 8 is the right vertical plate, 9 is the left vertical plate, 10 is the left roller, 11 is the right roller, 12 is the right stop block, 13 is the left stop block, 14 is the screw support, 15 is the right screw sleeve, 16 is the left screw sleeve, 17 is the fabric belt ring, 18 is the large cylinder, and 19 is the cylinder. Detailed Implementation

[0036] The present invention adopts the following technical solution:

[0037] A flexible posture adjustment method and fixture consists of a guide rail, two guide rail sliders, and two V-shaped movable opening frames. The guide rail sliders are placed on the guide rail, and the V-shaped movable opening frames are fixed on the guide rail sliders. The V-shaped movable opening frame consists of a base plate, a handwheel, a forward and reverse helical screw, two vertical plates, two rollers, two stops, two screw sleeves, and a cloth belt loop.

[0038] The base plate and the upright plate are connected by a pin to form a rotating pair; the handwheel is fixed to the positive and negative spiral screws, the screw sleeve is hinged to the upright plate to form a rotating pair, and the positive and negative spiral screws are helically connected to the screw sleeve to form a helical pair; the screw support is fixed in the middle of the base plate, and the positive and negative spiral screws are fixed on the screw support in the horizontal direction; the rollers are hinged to the upright plate to form a rotating pair; the fabric belt loop is tightened by two rollers; the stop block is hinged to the upright plate to form a rotating pair.

[0039] When adjusting the height of the cylinder, turn the handwheel to rotate the forward and reverse spiral screws, which in turn rotates the two vertical plates outward or inward simultaneously, adjusting the opening angle of the two V-shaped movable opening frames at the front and rear, so that the two cloth belt loops are tightened or loosened to the same degree, thereby adjusting the height of the cylinder.

[0040] When adjusting the pitch angle of the cylinder, rotate the handwheels of the two V-shaped movable opening frames supporting the cylinder to adjust the front and rear V-shaped movable opening frames to different angles and adjust the two cloth belt loops to different heights to adjust the pitch angle of the cylinder.

[0041] When adjusting the rolling angle of the cylinder, the cylinder is manually rotated to make the fabric belt roll on the rollers, thereby achieving axial rolling of the cylinder.

[0042] When adjusting the height of the cylinder or manually rotating the cylinder, the stop block can reduce the swaying of the cylinder and prevent the cylinder from hitting the upright plate.

[0043] When the cylinder moves axially on the guide rail, the guide rail slider moves the V-shaped movable opening frame on the guide rail, thereby changing the position of the cylinder.

[0044] When cylinders of different diameters are placed on the cloth belt ring, the V-shaped movable opening frame can be opened to accommodate cylinders of different diameters.

[0045] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The present invention includes, but is not limited to, the following examples.

[0046] like Figure 1 As shown, this embodiment discloses a flexible attitude adjustment method and tooling, including a guide rail 1, a guide rail slider 2, and a V-shaped movable opening frame 3. The guide rail slider 2 is placed on the guide rail 1, and the V-shaped movable opening frame 3 is fixed on the guide rail slider 2.

[0047] like Figure 2 and Figure 3 As shown, the V-shaped movable opening frame 3 includes a base plate 5, a handwheel 6, a forward and reverse spiral screw 7, a right vertical plate 8, a left vertical plate 9, a left roller 10, a right roller 11, a right stop block 12, a left stop block 13, a screw support 14, a right screw sleeve 15, a left screw sleeve 16, and a fabric belt ring 17.

[0048] The base plate 5 is connected to the right vertical plate 8 and the left vertical plate 9 by pins to form two rotating pairs; the handwheel 6 is fixedly connected to the positive and negative spiral screws 7; the right screw sleeve 15 is hinged to the right vertical plate 8 to form a rotating pair, and the left screw sleeve 16 is hinged to the left vertical plate 9 to form a rotating pair; the positive and negative spiral screws 7 are spirally connected to the right screw sleeve 15 and the left screw sleeve 16 to form a spiral pair; the screw support 14 is fixed in the middle of the base plate 5, and the positive and negative spiral screws 7 are fixed horizontally on the screw support 14; the left roller 10 is hinged to the left vertical plate 9, and the right roller 11 is hinged to the right vertical plate 8; the cylinder 4 is placed on the fabric belt ring 17, and the fabric belt ring 17 is tightened by the left roller 10 and the right roller 11; the right stop block 12 and the left stop block 13 are hinged to the left vertical plate 9 and the right vertical plate 8 to form rotating pairs.

[0049] When the handwheel 6 is turned, the forward and reverse spiral screws 7 rotate, causing the right screw sleeve 15 and the left screw sleeve 16 to rotate and always remain horizontal with the forward and reverse spiral screws 7. Then, the left vertical plate 9 and the right vertical plate 8 rotate outward or inward at the same time, adjusting the opening angle of the V-shaped movable opening frame 3, so that the cloth belt ring 17 is tightened or loosened, thereby adjusting the height of the cylinder 4.

[0050] In a set of tooling, when the height of the cylinder 4 is adjusted by the two V-shaped opening frames 3, the two cloth belt loops 17 are adjusted to different heights, which can adjust the pitch angle of the cylinder 4.

[0051] When adjusting the rolling angle of the cylinder 4, manually rotate the cylinder 4 so that the fabric belt ring 17 rolls on the left roller 10 and the right roller 11 to achieve axial rolling of the cylinder 4.

[0052] When the cylinder 4 moves axially on the guide rail 1, the guide rail slider 2 moves the V-shaped movable opening frame 3 on the guide rail 1, thereby changing the position of the cylinder 4.

[0053] When the cylinder 4 is manually rotated and its height is adjusted, the right stop block 12 and the left stop block 13 in the V-shaped movable opening frame 3 can reduce the left and right swaying of the cylinder 4 and prevent the cylinder 4 from hitting the left vertical plate 9 and the right vertical plate 8.

[0054] like Figure 4 As shown, the operation process of this invention is as follows: When the cylinder 4 is docked with the large cylinder 18, the handwheel 6 is turned, and the positive and negative spiral screws 7 rotate, driving the right screw sleeve 15 and the left screw sleeve 16 to rotate and always keep them horizontal with the positive and negative spiral screws 7. Then, the left vertical plate 9 and the right vertical plate 8 rotate simultaneously, adjusting the opening angle of the V-shaped movable opening frame 3 to tighten the fabric belt loop 17 and adjust the height of the cylinder 4. Similarly, the height of the large cylinder 18 is adjusted to be consistent with that of the cylinder 4. Then, the guide rail slider 2 is pushed, and the position of the V-shaped movable opening frame 3 is adjusted on the guide rail 1, so that the cylinder 4 and the large cylinder 18 move axially on the guide rail, and the two cylinders slowly approach and dock.

[0055] like Figure 9-12 As shown, the operation process of the present invention is as follows: Figure 9 This diagram illustrates the state of cylinder 19 before it enters the large cylinder 18. When cylinder 19 enters the large cylinder 18, the guide rail slider 2 is pushed, and the position of the V-shaped movable opening frame 3 on the guide rail 1 is adjusted, causing cylinder 19 to move closer to the large cylinder 18 on the guide rail. After cylinder 19 approaches the large cylinder 18, handwheel 6 is turned, causing the forward and reverse helical screws 7 to rotate, driving the right screw sleeve 15 and left screw sleeve 16 to rotate while remaining horizontal with the forward and reverse helical screws 7. Simultaneously, the left vertical plate 9 and right vertical plate 8 rotate, adjusting the opening angle of the V-shaped movable opening frame 3 to tighten the fabric belt loop 17, thereby adjusting the height of cylinder 19 to match the height of the large cylinder 18. Then, cylinder 19 is slowly moved into the large cylinder 18. Figure 10 As shown, during the process of cylinder 19 entering the large cylindrical body 18, the two V-shaped movable opening frames 3 supporting cylinder 19 successively failed. (As indicated...) Figure 11 As shown, one of the V-shaped movable opening frames 3 supporting the cylinder 19 fails; otherwise, the cylinder 19 cannot move forward, and finally the entire cylinder 19 enters the large cylinder 18. Figure 12 As shown.

[0056] The fabric belt rolls on the rollers, causing the cylinder to rotate axially.

[0057] The stop blocks in the V-shaped movable opening frame are made of organic polymers such as nylon, polyurethane, and rubber; fiber-reinforced composite materials and wood materials. The stop blocks can reduce the left and right sway of the cylinder, prevent the cylinder from hitting the upright plate, and do not damage the surface of the object.

[0058] The guide rail slider adjusts the position of the V-shaped movable opening frame on the guide rail, causing the cylinder to move axially on the guide rail. According to claim 1, the flexible posture adjustment method and tooling are characterized in that: the material used for the fabric belt ring is nylon fiber, canvas, aramid fiber, PBO fiber, etc., and the fabric belt ring is a flexible body, allowing cylinders of different diameters to be placed on it, suitable for flexible posture adjustment of cylinders of different diameters.

[0059] A flexible posture adjustment method and fixture consists of a guide rail, two guide rail sliders, and two V-shaped movable opening frames. The method is characterized by placing the guide rail sliders on the guide rail, fixing the V-shaped movable opening frames on the guide rail sliders, and placing the cylinder on a fabric belt. Each V-shaped movable opening frame consists of a base plate, a handwheel, a forward and reverse spiral screw, two vertical plates, two rollers, two stops, two screw sleeves, and a fabric belt loop.

[0060] The base plate and the upright plate are connected by a pin to form a rotating pair; the handwheel is fixed to the positive and negative spiral screws, the screw sleeve is hinged to the upright plate to form a rotating pair, and the positive and negative spiral screws are helically connected to the screw sleeve to form a helical pair; the screw support is fixed in the middle of the base plate, and the positive and negative spiral screws are fixed on the screw support in the horizontal direction; the rollers are hinged to the upright plate to form a rotating pair; the cylinder is placed on the fabric belt ring, and the fabric belt ring is tightened by two rollers; the stop block is hinged to the upright plate to form a rotating pair.

[0061] Turn the handwheel to rotate the forward and reverse screws, which in turn causes the two vertical plates to rotate outward or inward simultaneously, adjusting the opening angle of the two V-shaped movable opening frames at the front and rear, so that the two fabric belt loops are tensioned or relaxed to the same degree, thereby adjusting the height of the cylinder.

[0062] Adjusting the two V-shaped movable opening frames at different angles and the two fabric belt loops at different heights allows for adjustment of the cylinder's pitch angle.

[0063] Manually rotate the cylinder to make the fabric belt roll on the rollers, thus achieving axial rotation of the cylinder.

[0064] This invention discloses a flexible attitude adjustment method and tooling, capable of achieving four degrees of freedom of movement for a supported object, applicable to objects of different diameters, and without damaging the object's outer surface. It belongs to the field of assembly tooling technology. The invention provides a flexible attitude adjustment method and tooling adaptable to objects of different diameters. A V-shaped movable opening frame, driven by positive and negative helical screws, is installed on a guide rail slide. Each of the two rods of the V-shaped movable opening frame has a roller, and each rod has a stop at its upper end. The two rollers are surrounded by a high-strength, high-toughness fiber cloth loop. Height adjustment is achieved by driving the positive and negative helical screws to open and close the V-shaped movable opening frame, and the rolling direction can be achieved by manually rolling the object. This flexible attitude adjustment method and tooling are applicable to situations requiring multi-degree-of-freedom attitude adjustment during the docking and assembly of objects.

Claims

1. A flexible attitude adjustment fixture, comprising a guide rail (1) and a plurality of guide rail sliders (2), wherein the plurality of guide rail sliders (2) are placed on the guide rail (1), characterized in that, A V-shaped movable opening bracket (3) is fixedly installed on each guide rail slider (2); The V-shaped movable opening frame (3) includes a base plate (5), a handwheel (6), a screw support (14), a positive and negative spiral screw (7), a right upright plate (8), a left upright plate (9), a left roller (10), a right roller (11), a right stop block (12), a left stop block (13), a right screw sleeve (15), a left screw sleeve (16), and a fabric belt loop (17); wherein the base plate (5) and the right upright plate (8) and the left upright plate (9) are respectively connected by pins to form two rotating pairs; the handwheel (6) is fixedly connected to the positive and negative spiral screw (7); the right screw sleeve (15) is hinged to the right upright plate (8) to form a rotating pair, and the left screw sleeve (16) is hinged to the left upright plate (9) to form a rotating pair; the positive and negative spiral screw (7) and the right screw... The sleeve (15) and the left lead screw sleeve (16) are spirally connected to form a spiral pair; the lead screw support (14) is fixed in the middle of the base plate (5), and the positive and negative spiral lead screws (7) are fixed on the lead screw support (14) in the horizontal direction; the left roller (10) is hinged to the left vertical plate (9), and the right roller (11) is hinged to the right vertical plate (8); the fabric belt loop (17) is wrapped around the left roller (10) and the right roller (11), and the fabric belt loop (17) is loosened or tightened by the left roller (10) and the right roller (11); the right stop block (12) is hinged to the right vertical plate (8), and the left stop block (13) is hinged to the left vertical plate (9), and the right stop block (12) and the right vertical plate (8) and the left stop block (13) and the left vertical plate (9) form a rotating pair; During operation, the cylindrical workpiece (4) to be loaded is placed on the cloth belt ring (17) of the two V-shaped movable opening frames (3), and the handwheel (6) is turned. The rotation of the handwheel (6) drives the positive and negative spiral screws (7) to rotate. The rotation of the positive and negative spiral screws (7) also drives the right screw sleeve (15) and the left screw sleeve (16) to rotate. The right screw sleeve (15) and the left screw sleeve (16) always remain coaxial with the positive and negative spiral screws (7). Then the left vertical plate (9) and the right vertical plate (8) rotate outward or inward at the same time to adjust the opening angle of the V-shaped movable opening frame (3), so that the cloth belt ring (17) is tightened or loosened to adjust the height of the cylindrical workpiece (4) to be loaded.

2. The flexible attitude adjustment fixture according to claim 1, characterized in that, The materials of the left stop (13) and right stop (12) are organic polymer materials, fiber-reinforced composite materials or wood materials.

3. The flexible attitude adjustment fixture according to claim 1, characterized in that, The material used for the cloth belt loop is nylon fiber, canvas, aramid fiber, or PBO fiber.

4. The flexible attitude adjustment fixture according to claim 2, characterized in that, The organic polymer material is nylon, polyurethane, or rubber.

5. A method for flexible attitude adjustment using the flexible attitude adjustment fixture according to claim 1, comprising the following steps: Step 1: Install multiple guide rail sliders (2) on the guide rail (1), and each guide rail slider (2) is equipped with a V-shaped movable opening frame (3); Step 2: Adjust the two adjacent V-shaped movable opening frames (3) to open to the set angle; Step 3: Install the first cylindrical workpiece to be docked into the two V-shaped movable opening frames (3) described in Step 2, and then adjust the opening angle of the two V-shaped movable opening frames (3) so that the cylindrical workpiece to be docked reaches the set height. Step 4: Similar to Step 2 and Step 3, install the second cylindrical workpiece to be docked on the other two V-shaped movable opening frames (3), and adjust it so that the cylindrical workpiece to be docked reaches the set height; Step 5: Push the corresponding guide rail slider (2) to make the adjacent end faces of the first cylindrical workpiece to be docked and the second cylindrical workpiece to be docked together. Step 6: If the height of the first cylindrical workpiece to be docked and the second cylindrical workpiece to be docked do not meet the docking requirements, continue to adjust the opening angle of the corresponding V-shaped movable opening frame (3) until the height of the first cylindrical workpiece to be docked and the second cylindrical workpiece to be docked do not meet the docking requirements. Step 7: When the two workpieces to be docked meet the docking requirements, move one of the corresponding guide rail sliders (2) to slowly push the workpiece into the other workpiece. Step 8: During the docking process described in Step 7, the V-shaped movable opening frame (3) supporting the workpiece in the cylinder successively fails until the workpiece docking is completed.

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