Automatic locking method for a multi-point flexible support device

Abstract

The present invention relates to an automatic locking method for a multi-point flexible support device, which belongs to the field of curved surface support technology and solves the problem that the existing support device is easy to shake after support. The present invention comprises: step S1: placing the curved surface component on the multi-point flexible support device; the first support plate and the second support plate of the multi-point flexible support device are forced to move downward until they are balanced; step S2: the first locking pin and the second locking pin are driven to unlock by the gear transmission mechanism; step S3: the first locking pin unlocks the retaining ring of the support point adjustment device, and the retaining ring is driven by the first thrust spring to move to limit the first claw; the second locking pin unlocks the second claw of the support point locking device, and the second claw is pushed by the second claw spring to engage with the second annular groove on the second pillar. The present invention realizes self-locking of the support device while providing flexible multi-point support for the curved surface component, has good stability, and improves the degree of automation.

Description

Technical Field

[0001] The present invention relates to the technical field of curved surface support, and in particular to an automatic locking method for a multi-point flexible support device. Background Art

[0002] In the field of parts support equipment, especially for components with complex curved surfaces, specific tooling often needs to be designed for support, which cannot be applied to any component with curved surface features.

[0003] At present, the multi-point support device based on the "multi-point forming" principle has a low degree of automation. Most of them rely on hydraulic cylinders to adjust the height of the support points to form the same curved surface as the component. The support effect is unstable, resulting in the parts processing quality failing to meet the requirements.

[0004] Therefore, to address the problem that existing support devices cannot be automatically locked, it is necessary to provide an automatic locking method for multi-point flexible support. Summary of the Invention

[0005] In view of the above analysis, the present invention aims to provide an automatic locking method for a multi-point flexible support device to solve the problem that the existing support device cannot automatically lock and position.

[0006] The purpose of the present invention is mainly achieved through the following technical solutions:

[0007] A method for automatically locking a multi-point flexible support device, comprising: step S1: placing a curved surface component on the multi-point flexible support device; a first support plate and a second support plate of the multi-point flexible support device are forced to move downward until the elastic force of the multi-point flexible support device is balanced with the gravity of the curved surface component;

[0008] Step S2: The support point position control device drives the first locking pin and the second locking pin of the support point position adaptive device to unlock via the gear transmission mechanism;

[0009] Step S3: The first locking pin unlocks the retaining ring of the support point adjustment device, and the retaining ring is displaced to limit the first claw under the drive of the first thrust spring; the second locking pin unlocks the second claw of the support point locking device, and the second claw is engaged with the second circular ring groove on the second pillar under the push of the second claw spring; and the second pillar is locked.

[0010] In step S1, in the initial state, the first locking pin is vertically arranged between the clamping ring and the internal threaded sleeve; it is used to limit the displacement of the clamping ring and the rotational movement of the internal threaded sleeve; the second locking pin is inserted into the rectangular bracket to lock the position of the claw locking buckle.

[0011] In step S1, the second support plates of the multiple support point adaptive devices are lowered to different heights to adapt to the bottom shape of the curved component; the first support plate is connected to the first support rod through a ball joint; the second support plate is connected to the T-shaped support through a ball joint; the upper surfaces of the first support plate and the second support plate are tangent to the lower surface of the curved component.

[0012] In step S2, the support point position control device controls the unlocking moment of the support point position adjustment device and the support point control device, and the control process is:

[0013] Step S21: The first support rod moves downward and compresses the first compression spring. When the boss at the bottom of the first support rod contacts the inclined end surface of the end of the locking claw, the first support rod continues to move downward and pushes the locking claw to move to both sides.

[0014] Step S22: The locking claws on both sides move away from each other and out of the push rod; when the first support rod contacts the retaining spring on the locking claw, the first support rod stops descending, and the curved surface member above it also stops descending;

[0015] After the locking claw moves out of the push rod, the push rod descends linearly along the first square guide rod under the elastic force of the first compression spring; at the same time, the circular guide rod outside the push rod slides along the spiral guide groove on the first spiral tube; during the downward movement of the push rod, the circular guide rod can push the first spiral tube and the first gear to rotate;

[0016] Step S23: When the first gear rotates, it can drive the first locking pin and the second locking pin to move out of the support point adjustment device and the support point locking device through the gear transmission mechanism.

[0017] In step S23, the gear transmission mechanism drives the first locking pin and the second locking pin to move in the following manner:

[0018] Step S23a: When the first gear rotates, it can drive the first rack to slide linearly relative to the gear support; the first rack drives the plurality of second racks to move via the plurality of second gears;

[0019] Step S23b: When the second rack is displaced, the first connecting rod and the second connecting rod are driven to deflect, the angle between the first connecting rod and the second connecting rod and the second rack is reduced, and the second pin slides in the U-shaped groove of the second rack and moves away from the first pin;

[0020] Step S23c: the first connecting rod and the second connecting rod pull the first locking pin out of the support point adjustment device; at the same time, the first fixing bracket and the second fixing bracket move away from each other, driving the second locking pin to move out of the support point locking device.

[0021] In step S1, a support point adjustment device and a support point locking device are arranged in parallel below the T-shaped support; when the T-shaped support moves downward due to gravity, the second pillar moves downward relative to the second square guide rod and compresses the second compression spring; at the same time, the second pillar moves downward relative to the second square guide rod and compresses the third compression spring.

[0022] In step S1, when the first pillar moves downward, the first claw slidably mounted on the internally threaded sleeve and the first pillar are relatively displaced, and the first claw switches to a different first annular groove for engagement.

[0023] In step S3, after the first locking pin is removed, the first claw spring causes the first claw to slide along the threaded groove on the first claw support; the first claw rotates circumferentially relative to the first pillar, and at the same time, the first claw displaces axially relative to the first pillar until the first claw is completely aligned with the first annular groove; the first claw is completely engaged with the first annular groove under the thrust of the first claw spring.

[0024] In step S3, when the first clamping claw slides along the thread groove, it can drive the internal threaded sleeve to rotate relative to the external threaded base; when the internal threaded sleeve rotates relative to the external threaded base, it simultaneously moves downward relative to the external threaded base, thereby driving the first clamping claw to move downward and be completely aligned with the first annular clamping groove of the first pillar.

[0025] In step S3, the locking process of the second claw on the second pillar is as follows:

[0026] Step S31: The second locking pin unlocks the second claw; the second claw engages with the second circular groove of the second pillar;

[0027] Step S32: When the internally threaded sleeve rotates, it drives the third gear fixedly connected thereto to rotate; the third gear transmits the rotational motion to the fourth gear via the fifth gear; the fourth gear drives the third annular guide rod fixedly connected thereto to rotate, and drives the second support pillar to rotate via the third annular guide rod;

[0028] Step S33: When the second pillar rotates, it can move relative to the T-shaped support so that the second annular groove is completely aligned with the second claw, and then the second claw is completely engaged in the second annular groove.

[0029] In step S31, the second locking pin unlocks the second claw as follows:

[0030] Step S31a: The second locking pin is pulled out from the locking pin hole of the rectangular bracket, and the second locking pin releases the restriction on the rectangular bracket and the locking buckle of the claw;

[0031] Step S31b: The two sets of claw locking buckles slide along the T-shaped guide rail and move away from each other under the elastic force of the unlocking spring, and the claw locking buckles move out of the locking groove of the second claw, releasing the restriction on the second claw;

[0032] Step S31c: The second claw is radially displaced relative to the second claw support under the elastic force of the second claw spring and is clamped into the second annular groove of the lower half of the second pillar.

[0033] The multi-point flexible support device of the present invention comprises: a support point position control device, a support point position adaptive device and a gear transmission mechanism; the support point position adaptive device is provided with multiple groups;

[0034] The support point position control device includes: a first support plate and an elastic motion component; the first support plate contacts the lower surface of the complex curved surface component and supports it; when the first support plate supports the complex curved surface component, it can drive the gear transmission mechanism to move through the elastic motion component;

[0035] The support point adaptive device includes: a second support plate, a locking pin assembly, a support point position adjustment device and a support point position locking device; the second support plate is used to contact the lower surface of the complex curved surface component and support it; the support point position adjustment device is used to adjust the height of the second support plate; the support point position locking device is used to lock the height of the second support plate;

[0036] The locking pin assembly is used to lock the support point adjustment device and the support point locking device; when the gear transmission mechanism moves, it can drive the locking pin assembly to unlock the support point adjustment device and the support point locking device.

[0037] Furthermore, it also includes: a frame; the gear transmission mechanism, the support point control device and the support point adaptive device are all installed on the frame; the support point control device is arranged at the center position of the frame; multiple groups of the support point adaptive devices are arranged in an array on the frame, and are symmetrically distributed on both sides of the support point control device.

[0038] Furthermore, the elastic motion assembly includes: a first support rod, a first spiral tube, a first square guide rod, a first compression spring and a push rod; the upper end of the first support rod is connected to the first support plate through a ball joint, the lower end of the first support rod is provided with a square hole, and the push rod is slidably engaged with the first square guide rod through the square hole; the push rod is fixedly mounted on the outside of the first square guide rod and is located below the first support rod; the first compression spring is sleeved on the outside of the first square guide rod and is arranged between the first support rod and the push rod;

[0039] A circular guide rod is provided on the outside of the push rod; the first spiral tube is rotatably installed on the outside of the first support rod; the surface of the first spiral tube is provided with a spiral guide groove extending along its own axial direction; the circular guide rod is slidably installed in the spiral guide groove; when the circular guide rod slides along the spiral guide groove, the first spiral tube and the first support rod rotate relative to each other.

[0040] Furthermore, the support point position control device also includes: a locking claw, a retaining spring and a locking claw spring; the locking claw is arranged perpendicular to the first spiral tube and is slidably installed on the first spiral tube; the locking claw has two locking rods: a first locking rod and a second locking rod; the second locking rod is stuck in the locking hole on the side of the push rod; the end of the first locking rod is provided with an inclined end surface, and the lower end of the first support rod is provided with a boss, when the boss slides along the inclined end surface, it can push the locking claw to slide relative to the first spiral tube, and the second locking rod can unlock the push rod; retaining springs are installed on both the first locking rod and the second locking rod, and the locking claw spring is arranged between the retaining spring and the first spiral tube.

[0041] Furthermore, the support point adaptive device also includes: a T-shaped support; the second support plate is connected to the upper end of the T-shaped support through a ball joint; the support point position adjustment device is fixedly connected to the T-shaped support; the support point position locking device is screwed to the T-shaped support through a thread.

[0042] Furthermore, the support point adjustment device comprises: an externally threaded base, a first claw support, an internally threaded sleeve, a first support column, a second square guide rod and a second compression spring;

[0043] The upper end of the first pillar is fixedly connected to the T-shaped support; the lower end of the first pillar is provided with a square hole, and is slidably engaged with the second square guide rod through the square hole; a second compression spring is provided between the first pillar and the second square guide rod; the outer surface of the first pillar is provided with a plurality of first circular grooves arranged in parallel;

[0044] A threaded groove is provided on the first claw support; a first ratchet is provided at one end of the first claw, which can be clamped in the first circular groove, and the other end passes through the first spring positioning block and the threaded groove and is slidably installed in the through hole on the internally threaded sleeve; a first claw spring is arranged between the first spring positioning block and the first ratchet of the first claw; the first claw support is fixedly connected to the externally threaded base, and the internally threaded sleeve is screwed onto the outside of the externally threaded base through threads.

[0045] Furthermore, the supporting point locking device includes: a second pillar, a third compression spring, a third shaped guide rod, a second claw support, a second claw, a second claw spring and a claw limiting assembly;

[0046] The upper half of the second pillar is provided with an external thread and is screwed to the T-shaped support through a thread; the second pillar is sleeved on the outside of the third-shaped guide rod and can slide relatively; a third compression spring is provided between the second pillar and the third-shaped guide rod; the second claw support is sleeved on the outside of the second pillar and the third-shaped guide rod, and the second claw support is equipped with a second claw that can slide along its radial direction.

[0047] A second circular groove is provided on the lower half of the second pillar; the second claw is slidably mounted on the second claw support, and a second ratchet is provided at the end of the second claw, and a second claw spring is provided between the second ratchet and the second claw support; a locking groove is provided at the tail of the second claw; the claw limiting assembly cooperates with the locking groove to limit the displacement of the second claw relative to the second claw support; when the claw limiting assembly is unlocked, the second ratchet of the second claw can engage with the second circular groove.

[0048] Furthermore, a third gear is fixedly installed on the outside of the internally threaded sleeve; the third gear is meshed with the fourth gear through the fifth gear; the fourth gear is fixedly connected to the third shaped guide rod through a fixing bolt; when the internally threaded sleeve rotates, it can drive the third shaped guide rod to rotate synchronously through the third gear, the fifth gear and the fourth gear.

[0049] When the fourth gear rotates, the third t-shaped guide rod can drive the second pillar to rotate; when the second pillar rotates relative to the T-shaped support, it adjusts its own longitudinal height, thereby adjusting the degree of engagement between the second annular groove and the second ratchet.

[0050] Furthermore, the first spiral tube is connected to the first locking pin and the second locking pin through a gear transmission mechanism; and when the first spiral tube rotates, it can drive the first locking pin and the second locking pin to move synchronously through the gear transmission mechanism; when the first locking pin moves, it can unlock the internal threaded sleeve and the retaining ring; when the second locking pin moves, it can unlock the square locking support and the rectangular bracket.

[0051] The technical solution of the present invention can achieve at least one of the following effects:

[0052] 1. The automatic locking method of the multi-point flexible support device of the present invention realizes adaptive and stable support of complex curved surface components through the support point control device and the support point adaptive device, which can effectively prevent the components from shaking during the processing and is conducive to improving the processing accuracy of complex curved surface components.

[0053] 2. The automatic locking method of the multi-point flexible support device of the present invention provides compression springs in both the support point control device and the support point adaptive device, so that the height of each support point can be adaptively adjusted according to the surface characteristics of the component. It is suitable for components with different surface characteristics, realizes the flexibility of the support device, and reduces the production cost of the enterprise.

[0054] 3. The automatic locking method of the multi-point flexible support device of the present invention realizes automatic support and automatic locking through the support point control device and the support point adaptive device. By setting the cooperation between the circular ring slot and the claw, and setting the spring, the ratchet at the end of the claw can slide and switch to different positions in the adjacent circular ring slot for locking. It overcomes the shortcoming that the traditional locking mechanism can only lock at a specific position, and realizes automatic locking at any position, that is, stepless locking. Therefore, it is suitable for any complex curved surface component, has a high degree of automation, and does not require manual operation.

[0055] 4. The automatic locking method of the multi-point flexible support device of the present invention pushes the locking claw to unlock the push rod through the first support rod, drives the push rod downward through the first compression spring, and then pushes the first spiral tube to rotate through the circular guide rod, thereby unlocking the locking pin, and then realizing automatic locking through the first claw and the second claw.

[0056] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following description, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0058] Figure 1 An axonometric view of a multi-point flexible support device for implementing an automatic locking method for a multi-point flexible support device of the present invention;

[0059] Figure 2 This is an axonometric diagram of the support point position control device of the present invention;

[0060] Figure 3 for Figure 2 Schematic diagram of the appearance of the support point control device;

[0061] Figure 4 for Figure 2 A cross-sectional view of the support point position control device in FIG.

[0062] Figure 5 Schematic diagram of the positional relationship among the locking claw, push rod and locking claw spring of the present invention;

[0063] Figure 6 It is an axonometric diagram of the support point adaptive device of the present invention;

[0064] Figure 7 This is an axonometric diagram of the support point adjustment device of the present invention;

[0065] Figure 8 A schematic diagram of the positional relationship among the locking pin, the first connecting rod, the second connecting rod and the second rack of the present invention;

[0066] Figure 9 is a cross-sectional view of the support point position adjustment device after the first claw and the first pillar are fully engaged;

[0067] Figure 10 for Figure 9 A partial enlarged view of part A of the support point adjustment device;

[0068] Figure 11 This is a schematic diagram of the positional relationship between the first support, the first claw support, and the external thread base of the present invention;

[0069] Figure 12 Schematic diagram of the positional relationship among the first support, the first claw and the first claw spring of the present invention;

[0070] Figure 13 This is an axonometric view of the support point locking device of the present invention;

[0071] Figure 14 A cross-sectional view perpendicular to the direction of the second claw of the support point locking device after the second claw and the second pillar are fully engaged with each other according to the present invention;

[0072] Figure 15 A cross-sectional view of the support point locking device along the axis of the second claw after the second claw and the second pillar are fully engaged with each other according to the present invention;

[0073] Figure 16 for Figure 15 A partial enlarged view of the D portion of the support point locking device;

[0074] Figure 17 Schematic diagram of the positional relationship between the second support, the second claw and the second claw spring of the present invention;

[0075] Figure 18 Schematic diagram of the positional relationship between the square locking support, the claw locking buckle and the rectangular bracket of the present invention;

[0076] Figure 19Schematic diagram of the positional relationship among the locking buckle of the claw, the rectangular bracket and the fixed bracket of the present invention;

[0077] Figure 20 The invention relates to an automatic locking method for a multi-point flexible support device. Description of the drawings:

[0079] 1-frame; 2-support point control device; 3-support point adaptive device; 4-support point adjustment device; 5-support point locking device;

[0080] 21 - first support plate; 22 - first support rod; 23 - first spiral tube; 24 - first square guide rod; 25 - first compression spring; 26 - locking pawl; 27 - retaining spring; 28 - locking pawl spring; 29 - push rod; 210 - first gear; 211 - first rack; 212 - second gear; 213 - gear support; 214 - slide rod; 215 - vertical guide groove; 216 - spiral guide groove; 217 - circular guide rod;

[0081] 41 - externally threaded base; 42 - first claw support; 43 - internally threaded sleeve; 44 - third gear; 45 - first thrust spring; 46 - snap ring; 47 - first claw; 48 - second compression spring; 49 - first spring positioning block; 410 - first support pillar; 411 - T-shaped support; 412 - second support plate; 413 - first claw spring; 414 - second square guide rod; 415 - first locking pin; 416 - first connecting rod; 417 - second connecting rod; 418 - second rack; 419 - thread groove;

[0082] 51-second pillar; 52-third compression spring; 53-third rectangular guide rod; 54-first bearing; 55-first base; 56-fourth gear; 57-second base; 58-fifth gear; 59-fixing bolt; 510-second claw support; 511-L-shaped support frame; 512-second thrust spring; 513-square locking support; 514-claw locking buckle; 515-unlocking spring; 516-rectangular bracket; 517-first fixed bracket; 518-second claw; 519-second claw spring; 520-second spring positioning block; 521-T-shaped guide rail; 522-T-shaped guide groove; 523-locking groove; 524-second locking pin; 525-second fixed bracket; 526-vertical groove. DETAILED DESCRIPTION

[0083] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0084] Example 1

[0085] A specific embodiment of the present invention, as Figure 20 As shown, a method for automatically locking a multi-point flexible support device includes:

[0086] Step S1: placing the curved surface component on top of the multi-point flexible support device; the first support plate 21 and the second support plate 412 of the multi-point flexible support device are forced to move downward until the elastic force of the multi-point flexible support device is balanced with the gravity of the curved surface component;

[0087] Step S2: The support point position control device 2 drives the first locking pin 415 and the second locking pin 524 of the support point position adaptive device 3 to unlock through the gear transmission mechanism;

[0088] Step S3: The first locking pin unlocks the retaining ring of the support point adjustment device 4, and the retaining ring is displaced to limit the first claw under the drive of the first thrust spring; the second locking pin unlocks the second claw of the support point locking device, and the second claw is engaged with the second circular ring groove on the second pillar under the push of the second claw spring; the second pillar 51 is locked.

[0089] Furthermore, in step S1, in the initial state, the first locking pin 415 is vertically arranged between the retaining ring 46 and the internal threaded sleeve 43; it is used to limit the displacement of the retaining ring 46 and the rotational movement of the internal threaded sleeve 43; the second locking pin 524 is inserted into the rectangular bracket 516 to lock the position of the claw locking buckle 514.

[0090] Furthermore, in step S1, the second support plate 412 of the multiple support point adaptive device 3 is lowered to different heights to adapt to the bottom shape of the curved component; the first support plate 21 is connected to the first support rod 22 through a ball joint; the second support plate 412 is connected to the T-shaped support 411 through a ball joint; the upper surfaces of the first support plate 21 and the second support plate 412 are both tangent to the lower surface of the curved component.

[0091] Furthermore, in step S1, a support point adjustment device 4 and a support point locking device 5 are arranged in parallel below the T-shaped support 411; when the T-shaped support 411 moves downward due to gravity, the first pillar 410 moves downward relative to the second square guide rod 414 and compresses the second compression spring 48; at the same time, the second pillar 51 moves downward relative to the third square guide rod 53 and compresses the third compression spring 52.

[0092] Furthermore, in step S1 , when the first pillar 410 moves downward, the first claw 47 slidably mounted on the internally threaded sleeve 43 and the first pillar 410 are relatively displaced, and the first claw 47 switches to a different first annular groove for engagement.

[0093] The multi-point flexible support device includes: a frame 1, a support point position control device 2, a gear transmission mechanism and a support point position adaptive device 3.

[0094] Among them, Figure 1 As shown, the gear transmission mechanism, the support point position control device 2 and the support point position adaptive device 3 are all installed on the frame 1; the support point position control device 2 is installed in the middle of the frame 1, and the locking time of the support point position adaptive device 3 is controlled by the gear transmission mechanism. The support point position adaptive device 3 is provided with multiple groups, and the multiple groups of support point position adaptive devices 3 are arranged in an array and symmetrically arranged on both sides of the support point position control device 2 to constitute multi-point support.

[0095] The support point control device 2 includes: a first support plate 21 and an elastic motion component; the first support plate 21 contacts the lower surface of the complex curved surface component and supports it; when the first support plate 21 supports the complex curved surface component, it can drive the gear transmission mechanism to move through the elastic motion component.

[0096] The support point adaptive device 3 includes: a second support plate 412, a locking pin assembly, a support point position adjustment device 4 and a support point position locking device 5; the second support plate 412 is used to contact the lower surface of the complex curved surface component and support it; the support point position adjustment device 4 is used to adjust the height of the second support plate 412; the support point position locking device 5 is used to lock the height of the second support plate 412;

[0097] The locking pin assembly is used to lock the support point adjustment device 4 and the support point locking device 5; when the gear transmission mechanism moves, it can drive the locking pin assembly to unlock the support point adjustment device 4 and the support point locking device 5.

[0098] like Figure 6 As shown, the support point adaptive device 3 includes: a support point adjustment device 4 and a support point locking device 5.

[0099] The support point adjustment device 4 includes: a first claw 47 and a first pillar 410 . The support point adjustment device 4 controls the locking position of the support point through the engagement of the first claw 47 and the first pillar 410 .

[0100] The support point locking device 5 includes: a second claw 518, a second pillar 51 and a claw limiting assembly. The support point locking device 5 limits the relative displacement of the second claw 518 and the second pillar 51 through the claw limiting assembly, thereby locking the support point.

[0101] The following is a control method of the support point position control device 2 in step S2 with reference to the specific structure of the support point position control device 2:

[0102] like Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the support point control device 2 includes a first support plate 21 and an elastic motion component.

[0103] The elastic motion assembly includes a first support rod 22, a first spiral tube 23, a first square guide rod 24, a first compression spring 25, and a push rod 29. The upper end of the first support rod 22 is connected to the first support plate 21 via a ball joint. The lower end of the first support rod 22 is provided with a square hole, through which it slides with the first square guide rod 24. When the first support plate 21 moves downward under the gravity of the complex curved surface component, the first support rod 22 slides downward relative to the first square guide rod 24.

[0104] Specifically, the first support rod 22 is used to support complex curved components; the first support plate 21 is arranged at the upper end of the first support rod 22 and is connected to the first support rod 22 through a ball joint; the first support plate 21 has three degrees of rotational freedom relative to the first support rod 22, and can adapt to curved surfaces of different configurations, and realize 360° azimuth support for complex curved components, so that the upper surface of the first support plate 21 can be used as a cross-section of the complex curved component, and then the first support plate 21 can fit with curved surfaces with different slopes.

[0105] Specifically, if Figure 3 、 Figure 4 As shown, a first spiral tube 23 is rotatably mounted above the frame 1 , and the first spiral tube 23 is rotatably mounted outside the first support rod 22 and the first square guide rod 24 ; the first square guide rod 24 is fixedly connected to the frame 1 .

[0106] like Figure 4 、 Figure 5 As shown, the push rod 29 is slidably mounted on the outside of the first square guide rod 24 and is located below the first support rod 22. The first compression spring 25 is sleeved on the outside of the first square guide rod 24 and is disposed between the first support rod 22 and the push rod 29. The push rod 29 can slide downward relative to the first square guide rod 24 under the thrust of the spring 25.

[0107] like Figure 3 、 Figure 4 As shown, the surface of the first spiral tube 23 is provided with a vertical guide groove 215 and a spiral guide groove 216 extending along the axis direction of the first spiral tube 23; the vertical guide groove 215 and the spiral guide groove 216 are connected. Figure 5As shown, a circular guide rod 217 is disposed on the outside of the push rod 29 and is perpendicular to the push rod 29. The circular guide rod 217 is slidably mounted in the vertical guide groove 215 and the spiral guide groove 216. Specifically, when the circular guide rod 217 slides along the vertical guide groove 215, the push rod 29 slides downward relative to the first square guide rod 24. When the circular guide rod 217 slides along the spiral guide groove 216 under the thrust of the first compression spring 25, the push rod 29 and the first spiral tube 23 rotate relative to each other, thereby driving the first spiral tube 23 to rotate relative to the first support rod 22.

[0108] Furthermore, if Figure 4 、 Figure 5 The support point position control device 2 further includes a locking pawl 26, a retaining spring 27, and a locking pawl spring 28. The locking pawl 26 is used to lock the push rod 29. When the locking pawl 26 locks the push rod 29, the push rod 29 cannot slide relative to the first square guide rod 24. When the locking pawl 26 unlocks the push rod 29, the push rod 29 can slide relative to the first square guide rod 24.

[0109] Specifically, the locking claw 26 is slidably mounted on the first spiral tube 23 and is disposed perpendicular to the axis of the first spiral tube 23 .

[0110] like Figure 5 As shown, the locking claw 26 has two locking rods arranged in parallel: a first locking rod and a second locking rod. The first locking rod is parallel to the second locking rod, the first locking rod is located above the second locking rod, and the first locking rod and the second locking rod are connected as a whole by a vertical connecting rod.

[0111] Specifically, the second locking rod can be partially inserted into the locking hole on the side of the push rod 29. The end of the first locking rod is provided with an inclined end surface, and the lower end of the first support rod 22 is provided with a boss. When the boss slides along the inclined end surface, it can push the locking claw 26 to slide relative to the first spiral tube 23.

[0112] Specifically, both the first and second locking rods are capable of displacement along the radial direction of the first helical tube 23 and the axial direction of the locking hole in the push rod 29; the radial direction of the first helical tube 23 corresponds to the axial direction of the locking hole. In other words, the locking claw 26 can slide left and right relative to the first helical tube 23, allowing it to be inserted into or removed from the locking hole. When the first support rod 22 moves downward, the boss can slide along the inclined end surface, pushing the locking claw 26 away from the push rod 29, thereby removing the second locking rod from the locking hole in the push rod 29 and unlocking the push rod 29.

[0113] The first locking rod and the second locking rod are both provided with a retaining spring 27. Specifically, a locking claw spring 28 for pressing the locking claw 26 is sleeved on the first locking rod and the second locking rod, and the locking claw spring 28 is provided between the retaining spring 27 and the first spiral tube 23. Figure 5 shown.

[0114] When the first compression spring 25 is uncompressed, the first support rod 22 is not in contact with the locking pawl 26. At this time, the second locking rod of the locking pawl 26 is engaged in the locking hole of the push rod 29 under the elastic force of the locking pawl spring 28, thereby locking the push rod 29. When the first support rod 22 pushes the locking pawl 26 as a whole to slide relative to the first spiral tube 23, the locking pawl spring 28 is compressed.

[0115] Furthermore, the exterior of the first spiral tube 23 is fixedly connected to the first gear 210, and the first gear 210 rotates synchronously with the first spiral tube 23. When the first gear 210 rotates, the support point adjustment device 4 and the support point locking device 5 can be unlocked through the gear transmission mechanism.

[0116] In step S2, the support point position control device 2 controls the unlocking moment of the support point position adjustment device 4 and the support point position control device 2, and the control process is:

[0117] Step S21: The curved surface component is placed on the first support plate 21, and the first support plate 21 is pressed down; the first support rod 22 moves downward and compresses the first compression spring 25. When the boss at the bottom of the first support rod 22 contacts the inclined end surface of the locking claw 26, the first support rod 22 continues to move downward and pushes the locking claw 26 to both sides; due to the gravity of the parts, the locking claws 26 on both sides are stretched open, the locking claw spring 28 is compressed, and the locking claws 26 on both sides move away from each other.

[0118] Step S22: The locking claws 26 on both sides move away from each other and move out of the push rod 29; when the first support rod 22 contacts the retaining spring 27 on the locking claw 26, the first support rod 22 no longer descends, and the curved surface component above it cannot continue to fall; at this time, since the locking claws 26 on both sides have moved away from each other, the push rod 29 loses the clamping effect of the locking claws 26 on both sides.

[0119] After the locking claw 26 moves out of the push rod 29, the push rod 29 descends linearly along the first square guide rod 24 under the elastic force of the first compression spring 25; at this time, the push rod 29 cannot rotate relative to the first square guide rod 24; when the push rod 29 moves downward, the circular guide rod 217 outside the push rod 29 slides along the spiral guide groove 216 on the first spiral tube 23; since the push rod 29 can only move downward and cannot rotate, the first spiral tube 23 is forced to rotate, and the circular guide rod 217 pushes the first spiral tube 23 and the first gear 210 to rotate.

[0120] Step S23 : When the first gear 210 rotates, it can drive the first locking pin 415 and the second locking pin 524 to move out of the support point adjustment device 4 and the support point locking device 5 through the gear transmission mechanism.

[0121] Furthermore, the movement of the first locking pin 415 and the second locking pin 524 in step S23 is described in conjunction with the specific structure of the gear movement mechanism:

[0122] The gear transmission mechanism includes: a first gear 210, a first rack 211, a second gear 212, a gear support 213, a sliding rod 214, a first connecting rod 416, a second connecting rod 417, a second rack 418, a first fixing bracket 517 and a second fixing bracket 525; the first gear 210 is fixedly mounted on the outside of the first spiral tube 23; the first gear 210 is meshed with one side of the first rack 211; the other side of the first rack 211 is meshed with the second gear 212; the second rack 418 is parallel to the first rack 211 and meshed with the second gear 212;

[0123] like Figure 6 、 Figure 7 、 Figure 8 As shown, one end of the first connecting rod 416 is hingedly connected to the second rack 418 through a first pin; a U-shaped groove is provided on the second rack 418, and one end of the second connecting rod 417 slides with the U-shaped groove through a second pin; the other end of the first connecting rod 416 and the other end of the second connecting rod 417 are both hingedly connected to the first locking pin 415; the first fixing bracket 517 and the second fixing bracket 525 are parallel to each other; there are two groups of second locking pins 524, one end of the first fixing bracket 517 is fixedly installed with a group of second locking pins 524, and the other end is fixedly connected to the first pin, and one end of the second fixing bracket 525 is fixedly installed with another group of second locking pins 524, and the other end is fixedly connected to the second pin.

[0124] Furthermore, the number of the second gears 212 and the second racks 418 is the same as the number of the support point position adaptive devices 3 .

[0125] Furthermore, the second gear 212 is rotatably mounted on the upper surface of the gear support 213; mutually perpendicular slide bars 214 are set on the side of the gear support 213; one end of the first locking pin 415 is inserted into the first locking pin mounting hole, and the other end is set with a slide bar mounting hole, and the slide bar 214 is slidably mounted in the slide bar mounting hole; the slide bar 214 is used to limit the displacement direction of the first locking pin 415.

[0126] Specifically, the gear support 213 installed on the frame 1 is located on both sides of the first spiral tube 23, and the second gears 212 installed on the gear support 213 are arranged in an array; the first rack 211 is respectively engaged with the first gear 210 and the second gear 212, and the slide rod 214 arranged in an array is installed on one side of the gear support 213.

[0127] In step S23, the gear transmission mechanism drives the first locking pin 415 and the second locking pin 524 to move in the following manner:

[0128] Step S23a: When the first gear 210 is driven to rotate by the circular guide rod 217, the first racks 211 symmetrically arranged on both sides of the first spiral tube 23 can move linearly relative to the gear support 213 under the drive of the first gear 210; then the first rack 211 drives the multiple second racks 418 to move through the multiple second gears 212.

[0129] Step S23b: When the second rack 418 is displaced, the first connecting rod 416 and the second connecting rod 417 are driven to deflect, and the angle between the first connecting rod 416, the second connecting rod 417 and the second rack 418 is reduced. The second pin slides in the U-shaped groove of the second rack 418 and moves away from the first pin.

[0130] Step S23c: The first connecting rod 416 and the second connecting rod 417 pull the first locking pin 415 out of the support point adjustment device 4. Simultaneously, the first fixing bracket 517 and the second fixing bracket 525 move away from each other, driving the second locking pin 524 out of the support point locking device 5. In other words, when the second rack 418 moves, it can drive the first locking pin 415 and the second locking pin 524 to unlock the support point adjustment device 4 and the support point locking device 5, respectively.

[0131] Specifically, in step S23b, when the second rack 418 shifts, the second pin slides within the U-shaped groove, thereby causing the angle between the first connecting rod 416 and the second connecting rod 417 and the second rack 418 to change. This in turn causes the first locking pin 415 at the other end to shift via the first connecting rod 416 and the second connecting rod 417. That is, when the second pin slides within the U-shaped groove, the first locking pin 415 moves closer to or further from the support point position adjustment device 4. Simultaneously, the first and second pins drive the first fixing bracket 517 and the second fixing bracket 525 toward or away from each other.

[0132] Specifically, in step S23c, when the first locking pin 415 is displaced toward the second rack 418, the first locking pin 415 is pulled out from the retaining ring 46 and the internal threaded sleeve 43, unlocking the retaining ring 46 and the internal threaded sleeve 43 of the support point adjustment device 4; when the first fixed bracket 517 and the second fixed bracket 525 move away from each other, the second locking pin 524 can be pulled out from the rectangular bracket 516, unlocking the rectangular bracket 516 and the claw locking buckle 514 in the claw limiting assembly of the support point locking device 5, and then unlocking the second claw 518.

[0133] The present invention realizes self-locking of the multi-point flexible support device through the first clamping claw 47 of the support point adjustment device 4 and the second clamping claw 518 of the support point locking device 5.

[0134] like Figure 6 As shown, the support point adaptive device 3 includes: a second support plate 412, a T-shaped support 411, a support point position adjustment device 4 and a support point position locking device 5.

[0135] The second support plate 412 is connected to the upper end of the T-shaped support 411 through a ball joint.

[0136] The support point adjustment device 4 is fixedly connected to the T-shaped support 411; the support point locking device 5 is screwed to the T-shaped support 411 through threads.

[0137] like Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown, the support point adjustment device 4 includes: an external thread base 41, a first claw support 42, an internal thread sleeve 43, a first support column 410, a second square guide rod 414 and a second compression spring 48;

[0138] The upper end of the first pillar 410 is fixedly connected to the T-shaped support 411; the lower end of the first pillar 410 is provided with a square hole, and slidingly cooperates with the second square guide rod 414 through the square hole; a second compression spring 48 is arranged between the first pillar 410 and the second square guide rod 414; when the first pillar 410 moves downward relative to the second square guide rod 414, the second compression spring 48 is compressed.

[0139] like Figure 10 、 Figure 11 、 Figure 12 As shown, the outer surface of the first pillar 410 is provided with a plurality of first annular grooves arranged in parallel.

[0140] A threaded groove 419 is provided on the first claw support 42; a first ratchet is provided at one end of the first claw 47, and the first ratchet can be clamped into the first circular groove; a first cylindrical section is provided at the other end of the first claw 47, and the first cylindrical section passes through the first spring positioning block 49 and the threaded groove 419 and is slidably installed in the through hole on the internal threaded sleeve 43; a first claw spring 413 is arranged between the first spring positioning block 49 and the first ratchet of the first claw 47; the first claw support 42 is fixedly connected to the external threaded base 41, and the internal threaded sleeve 43 is screwed onto the outside of the external threaded base 41 through threads.

[0141] Specifically, the lower end of the second square guide rod 414 is fixedly connected to the external thread base 41 .

[0142] Specifically, an externally threaded base 41 with threads on the outside is fixed on the frame 1 , and a thread groove 419 is provided on the first claw support 42 fixedly connected to the externally threaded base 41 . The thread pitch of the thread groove 419 is equal to the thread pitch of the thread on the externally threaded base 41 .

[0143] Specifically, through holes arranged in an array and cooperating with the first claws 47 are provided on both sides of the internally threaded sleeve 43 located outside the first claw support 42 .

[0144] Specifically, the internal thread sleeve 43 is matched with the external thread of the external thread base 41 through the internal thread provided at the bottom.

[0145] Specifically, the first claw 47 can slide radially relative to the internal threaded sleeve 43 ; and the first claw 47 can slide along the thread groove 419 on the first claw support 42 to achieve circumferential rotation of the first claw 47 relative to the first claw support 42 .

[0146] Specifically, if Figure 12 As shown, the first pawl spring 413 is located between the first ratchet tooth and the first spring positioning block 49 close to the inner side of the first pawl support 42.

[0147] Specifically, the first locking pin 415 can move along the axis of the locking pin mounting hole on the internally threaded sleeve 43 and the retaining ring 46 .

[0148] Specifically, one end of the T-shaped support 411 is fixedly connected to the first pillar 410; the other end of the T-shaped support 411 is provided with a threaded hole, the threaded hole has the same pitch as the thread on the external threaded base 41, and is threadedly connected to the second pillar 51 through the threaded hole.

[0149] Furthermore, a retaining ring 46 is slidably mounted on the exterior of the internally threaded sleeve 43; a third gear 44 is mounted on the exterior of the internally threaded sleeve 43, with a first thrust spring 45 disposed between the retaining ring 46 and the third gear 44. A first locking pin mounting hole and a second locking pin mounting hole, whose axes coincide with each other, are respectively defined on the internally threaded sleeve 43 and the retaining ring 46; the first locking pin 415 is mounted in each of the first and second locking pin mounting holes. A first locking pin mounting hole, which mates with the first locking pin 415, is defined on one side of the internally threaded sleeve 43, and a second locking pin mounting hole is defined on the retaining ring 46.

[0150] Specifically, the third gear 44 is provided with a rectangular guide groove, and the internally threaded sleeve 43 is provided with a rectangular guide rail. The third gear 44 is slidably installed on the internally threaded sleeve 43 through the cooperation of the rectangular guide groove and the rectangular guide rail; the third gear 44 and the internally threaded sleeve 43 are fixed in the circumferential direction and can slide relative to each other in the longitudinal direction.

[0151] Specifically, the snap ring 46 located on the outside of the internally threaded sleeve 43 is slidably fitted with the internally threaded sleeve 43 through a rectangular guide groove provided on the inside. The snap ring 46 and the internally threaded sleeve 43 are fixed in the circumferential direction and can slide relative to each other in the longitudinal direction.

[0152] When the first locking pin 415 is pulled out, the internally threaded sleeve 43 and the retaining ring 46 can slide relative to each other, and the internally threaded sleeve 43 can rotate relative to the first claw support 42 .

[0153] In the present invention, when the second support plate 412 moves downward under the action of gravity of the complex curved surface component, the first pillar 410 and the second square guide rod 414 slide relative to each other and compress the second compression spring 48 at the same time; the first pillar 410 moves downward, the first claw 47 slides relative to the first pillar 410, and the first ratchet of the first claw 47 switches to different first annular grooves for engagement.

[0154] In the present invention, when the first ratchet and the first annular groove are not fully engaged, the elastic force of the first claw spring 413 can push the first claw 47 to slide along the thread groove 419, and at the same time, the first claw 47 drives the internal threaded sleeve 43 to rotate relative to the external threaded base 41; when the first claw 47 slides along the thread groove 419, it can be displaced relative to the axis of the first pillar 410, thereby adjusting the degree of engagement between the first ratchet and the first annular groove.

[0155] In the present invention, the retaining ring 46 can move upward relative to the internally threaded sleeve 43 under the elastic force of the first thrust spring 45, thereby locking the first claw 47, limiting the lateral displacement of the first claw 47 relative to the internally threaded sleeve 43, and preventing the first claw 47 from switching the first annular groove for engagement, thereby limiting the relative displacement of the first claw 47 and the first pillar 410.

[0156] Furthermore, the third gear 44 is fixedly installed on the outside of the internally threaded sleeve 43; the third gear 44 is meshed with the fourth gear 56 through the fifth gear 58; the fourth gear 56 is fixedly connected to the third shaped guide rod 53 through a fixing bolt 59; the internally threaded sleeve 43 can drive the third shaped guide rod 53 to rotate synchronously through the third gear 44, the fifth gear 58 and the fourth gear 56.

[0157] Specifically, the fifth gear 58 is rotatably mounted on the second base 57 , and the second base 57 is fixedly mounted on the frame 1 .

[0158] When the fourth gear 56 rotates, the third shaped guide rod 53 can drive the second pillar 51 to rotate; when the second pillar 51 rotates relative to the T-shaped support 411, it adjusts its own longitudinal height, and thus can adjust the degree of engagement between the second annular groove and the second ratchet.

[0159] Furthermore, the first solenoid 23 is connected to the first locking pin 415 and the second locking pin 524 via a gear transmission mechanism. When the first solenoid 23 rotates, the gear transmission mechanism can drive the first and second locking pins 415 and 524 to move synchronously. When the first locking pin 415 moves, it moves out of the internally threaded sleeve 43 and the retaining ring 46, unlocking the internally threaded sleeve 43 and the retaining ring 46. When the second locking pin 524 moves, it moves out of the square locking support 513 and the rectangular bracket 516, unlocking the square locking support 513 and the rectangular bracket 516.

[0160] In step S1, the curved surface member is above the second support plate 412, and the curved surface member and the second support plate 412, the T-shaped support 411 and the first pillar 410 are lowered along the guide rail direction of the second square guide rod 414, and the second compression spring 48 is compressed; during the downward movement of the first pillar 410, the first pillar 410 can compress the first claw spring 413 through the first claw 47, and the first claw 47 moves back and forth left and right in the internal threaded sleeve 43, and then the first claw 47 switches to different first annular grooves for engagement.

[0161] In step S1, when the first support rod 22 does not continue to move downward, that is, when the curved surface component reaches the lowest point, the first claw 47 may not completely reach the bottom of the annular groove on the first pillar 410 and is not fully engaged with it. The first pillar 410 may still fall, that is, the curved surface component may still shake.

[0162] In step S2 , when the first locking pin 415 is completely removed from the retaining ring 46 and the internally threaded sleeve 43 , the internally threaded sleeve 43 can rotate relative to the externally threaded base 41 .

[0163] In step S1 , when the second support plate 412 stops moving downward, the first claw 47 has not completely reached the bottom of the first annular groove on the first pillar 410 , and the first claw spring 413 is in a compressed state.

[0164] In step S3, after the first locking pin 415 is removed, the elastic force of the first claw spring 413 causes the first claw 47 to slide along the threaded groove 419 on the first claw support 42; the first claw 47 rotates circumferentially relative to the first claw support 42 along the threaded groove 419 on the first claw support 42; the first claw spring 413 pushes the internal threaded sleeve 43 to rotate relative to the external threaded base 41 through the first claw 47, thereby adjusting the height of the first claw 47.

[0165] Specifically, the first claw 47 rotates circumferentially relative to the first pillar 410, and at the same time, the first claw 47 displaces axially relative to the first pillar 410 until the first claw 47 is completely aligned with the first annular groove; then the first claw 47 continues to displace along the axial direction of the claw mounting hole on the internal threaded sleeve 43, and further engages with the first annular groove until the first claw 47 is completely engaged in the first annular groove.

[0166] That is to say, when the first claw 47 slides along the thread groove 419, it can drive the internal threaded sleeve 43 to rotate relative to the external threaded base 41; when the internal threaded sleeve 43 rotates relative to the external threaded base 41, it is synchronously displaced relative to the axis of the external threaded base 41, thereby driving the first claw 47 to displace and be completely aligned with the first annular groove of the first pillar 410.

[0167] At the same time, when the first claw 47 moves circumferentially along the thread groove 419 and drives the internal threaded sleeve 43 to rotate circumferentially relative to the external threaded base 41, it can drive the third gear 44 to rotate circumferentially relative to the external threaded base 41; and through the third gear 44, the fourth gear 56 and the second pillar 51 are driven to rotate, and the degree of engagement of the second claw 518 and the second annular groove is synchronously adjusted.

[0168] In step S3, when the first locking pin 415 is completely removed from the retaining ring 46, the retaining ring 46 slides upward relative to the internal threaded sleeve 43 under the elastic force of the first thrust spring 45; after the first claw 47 is completely engaged in the first annular groove, the retaining ring 46 continues to slide upward under the elastic force of the first thrust spring 45, and completely blocks the claw mounting hole on the internal threaded sleeve 43, so that the symmetrically arranged first claws 47 cannot move away from each other.

[0169] The locking method of the support point locking device 5 is described below in conjunction with the specific structure of the support point locking device 5:

[0170] In step S3, the locking process of the second claw 518 on the second pillar 51 is as follows:

[0171] Step S31: The second locking pin 524 unlocks the second claw 518; the second claw 518 engages with the second annular groove of the second pillar 51;

[0172] Step S32: When the internally threaded sleeve 43 rotates, it drives the third gear 44 fixedly connected thereto to rotate; the third gear 44 transmits the rotational motion to the fourth gear 56 via the fifth gear 58; the fourth gear 56 drives the third annular guide rod 53 fixedly connected thereto to rotate, and drives the second support 51 to rotate via the third annular guide rod 53;

[0173] Step S33: When the second pillar 51 rotates, it can be displaced relative to the T-shaped support 411, so that the second annular groove is completely aligned with the second claw 518, and then the second claw 518 is completely engaged in the second annular groove.

[0174] like Figure 13 、 Figure 14 、 Figure 15 、 Figure 16 、 Figure 17 、 Figure 18 and Figure 19 As shown, the supporting point locking device 5 includes: a second pillar 51, a third compression spring 52, a third-shaped guide rod 53, a first base 55, a second claw support 510, a second claw 518, a second claw spring 519 and a claw limiting assembly.

[0175] like Figure 14 As shown, the second pillar 51 is sleeved on the outside of the third-shaped guide rod 53 and can slide relatively; a third compression spring 52 is provided between the second pillar 51 and the third-shaped guide rod 53; the third compression spring 52 is arranged in the square hole inside the second pillar 51; when the second support plate 412 and the T-shaped support 411 move downward due to gravity, the second pillar 51 moves downward relative to the third-shaped guide rod 53, thereby compressing the third compression spring 52, and the elastic force of the third compression spring 52 supports the structural member.

[0176] Furthermore, if Figure 13 、 Figure 14 As shown, the first base 55 and the second base 57 are both fixedly connected to the frame 1. The second claw support 510 is sleeved onto the exterior of the second support 51 and the third-shaped guide rod 53; the second claw support 510 is fixedly connected to the first base 55 via bolts; the third-shaped guide rod 53 is rotatably connected to the first base 55 via a first bearing 54. When the third-shaped guide rod 53 rotates, it can drive the second support 51 to rotate synchronously, thereby displacing the second support 51 relative to the T-shaped support 411. Specifically, the first base 55 is provided with an arcuate groove. The fixing bolt 59 passes through the fourth gear 56 and the arcuate groove of the first base 55 to be fixedly connected to the third-shaped guide rod 53. When the internally threaded sleeve 43 rotates, it can drive the third-shaped guide rod 53 to rotate synchronously via the third gear 44, the fifth gear 58, and the fourth gear 56, thereby achieving the engagement or disengagement of the second support 51 with the T-shaped support 411 and adjusting the height of the second circular groove.

[0177] like Figure 14 、 Figure 15 As shown, the upper half of the second support 51 is provided with external threads, and the lower half of the second support 51 is provided with a second annular retaining groove. The external threads on the upper half of the second support 51 are threadedly connected to the threaded hole at one end of the T-shaped support 411. When the second support 51 rotates, it can move relative to the T-shaped support 411. The second annular retaining groove on the lower half of the second support 51 is designed to engage with the second claw 518 on the second claw support 510.

[0178] Specifically, if Figure 14 、 Figure 15 As shown, the lower end of the second support 51 is provided with a second circular groove with an opening facing downward arranged in an array. The second claw support 510 has four through holes arranged in a symmetrical array on both sides, which cooperate with the second claw 518. The second claw 518 is slidably installed in the through holes on both sides of the second claw support 510.

[0179] like Figure 17 As shown, the second claw 518 includes: a second cylindrical section and a second ratchet; the second ratchet can be clamped into the second annular groove in the lower half of the second pillar 51; the second cylindrical section is slidably installed on the second claw support 510, and the locking groove 523 at the tail cooperates with the claw limit assembly.

[0180] like Figure 15 As shown, the second claw 518 is slidably installed on the second claw support 510, and a second ratchet is provided at the end of the second claw 518, and a second claw spring 519 is provided between the second ratchet and the second claw support 510; specifically, a second spring positioning block 520 is sleeved on the second cylindrical section, and the second claw spring 519 is sleeved on the second cylindrical section and installed between the second spring positioning block 520 and the second ratchet. Under the action of the second claw spring 519, the second spring positioning block 520 is pressed against the inner wall of the second claw support 510.

[0181] Furthermore, a locking groove 523 is provided at the tail of the second claw 518; the claw limiting assembly cooperates with the locking groove 523 to limit the displacement of the second claw 518 relative to the second claw support 510; when the claw limiting assembly locks the second claw 518, the second claw 518 is away from the second pillar 51; when the claw limiting assembly is unlocked, the second ratchet of the second claw 518 can engage with the second annular groove.

[0182] When the second pillar 51 moves downward, it can compress the third compression spring 52, and then the claw limiting assembly unlocks the second claw 518, and the second claw 518 is clamped into the second annular groove under the elastic force of the second claw spring 519.

[0183] In step S31, the second locking pin 524 unlocks the second claw 518 in the following steps:

[0184] Step S31a: The second locking pin 524 is pulled out from the locking pin hole of the rectangular bracket 516 , and the second locking pin 524 releases the restriction on the rectangular bracket 516 and the claw locking buckle 514 ;

[0185] Step S31b: Under the elastic force of the unlocking spring 515, the two sets of claw locking buckles 514 slide along the T-shaped guide rail 521 and move away from each other. The claw locking buckles 514 move out of the locking groove 523 of the second claw 518, releasing the restriction on the second claw 518;

[0186] Step S31c: Under the elastic force of the second claw spring 519 , the second claw 518 is radially displaced relative to the second claw support 510 and is clamped into the second annular groove in the lower half of the second pillar 51 .

[0187] In a specific embodiment of the present invention, the claw limiting assembly includes: an L-shaped support frame 511, a second thrust spring 512, a square locking support 513, two rectangular brackets 516, two parallel T-shaped guide rails 521, two sets of claw locking buckles 514 and an unlocking spring 515.

[0188] Specifically, the L-shaped bracket 511 is fixedly connected to the second claw support 510 and the first base 55 by bolts; the lower end of the square locking support 513 is slidingly connected to the L-shaped support frame 511 through a sliding pillar; a second thrust spring 512 is arranged between the L-shaped support frame 511 and the square locking support 513.

[0189] Specifically, a plurality of L-shaped brackets 511 are provided and distributed in an array around the periphery of the second claw support 510 .

[0190] Specifically, the square locking support 513 is covered on the outside of the second claw support 510, and a T-shaped guide rail 521 is provided on the inner wall surface of the square locking support 513; a T-shaped guide groove 522 is provided on the claw locking buckle 514, and the claw locking buckle 514 is slidably installed on the T-shaped guide rail 521 through the T-shaped guide groove 522.

[0191] Specifically, the end of the claw locking buckle 514 can be locked into the locking groove 523 at the tail of the second claw 518 to limit the displacement of the second claw 518; the claw locking buckle 514 and the T-shaped guide rail 521 are symmetrically arranged in two groups, and an unlocking spring 515 is arranged between the two groups of claw locking buckles 514; the two rectangular brackets 516 are fixedly connected to the two groups of claw locking buckles 514 respectively.

[0192] Specifically, by limiting the two rectangular brackets, the displacement of the two sets of claw locking buckles 514 can be limited; the two rectangular brackets 516 are positioned by two second locking pins 524, and the second locking pins 524 pass through the vertical slots 526 on the square locking support 513 and are inserted into the locking pin holes of the rectangular brackets 516; when the second locking pins 524 limit the rectangular brackets 516, the unlocking springs 515 are in a compressed state.

[0193] In the present invention, when the second locking pin 524 is pulled out from the locking pin hole of the rectangular bracket 516, the second locking pin 524 releases the limit on the rectangular bracket 516; the two groups of the claw locking buckles 514 slide along the T-shaped guide rail 521 and move away from each other under the elastic force of the unlocking spring 515, and the claw locking buckles 514 move out of the locking groove 523 of the second claw 518, releasing the limit on the second claw 518; the second claw 518 can be radially displaced relative to the second claw support 510 under the elastic force of the second claw spring 519 and be locked into the second annular groove in the lower half of the second pillar 51.

[0194] In the present invention, after the second locking pin 524 is removed from the rectangular bracket 516, the square locking support 513 is displaced upward under the elastic force of the second thrust spring 512, thereby blocking the second claw 518 and restricting the second claw 518 from moving out of the second circular groove. By providing the square locking support 513, the present invention achieves a locking limit for the second claw 518, the second support column 51, and the second support plate 412. With the second support plate 412 fixed in position, the present invention can provide stable support for the complex curved surface component above.

[0195] Furthermore, when the second claw 518 is engaged with the second annular groove, the second ratchet of the second claw 518 may not be fully engaged with the second annular groove due to the uncertainty of the height of the second pillar 51 . Therefore, the height of the second pillar 51 needs to be adjusted.

[0196] Specifically, the height of the second pillar 51 can be adjusted by the relative rotation of the second pillar 51 and the T-shaped support 411; the second pillar 51 can be driven to rotate by the second square guide rod 53; the second square guide rod 53 is fixedly connected to the fourth gear 56 by a fixing bolt 59. The second square guide rod 53 rotates synchronously with the fourth gear 56, and the fourth gear 56 rotates synchronously with the third gear 44 and the internally threaded sleeve 43 through the fifth gear 58. The two sides of the fifth gear 58 are respectively engaged with the third gear 44 and the fifth gear 56, so that the internally threaded sleeve 43 and the second pillar 51 rotate synchronously. When the internally threaded sleeve 43 rotates to adjust the degree of engagement between the first claw 47 and the first circular groove, it can synchronously drive the second pillar 51 to move and adjust the degree of engagement between the second claw 518 and the second circular groove, so that the two are fully engaged.

[0197] Specifically, the second thrust springs 512 arranged in a circular array can press the square locking support 513 against the lower end surface of the extension portion of the second claw support 510 .

[0198] Specifically, both sides of the square locking support 513 are provided with through holes arranged in a symmetrical array to cooperate with the second claw 518; before the second claw 518 is unlocked from the claw locking buckle 514, the end of the second claw 518 is set in the through hole of the square locking support 513, and after the claw locking buckle 514 unlocks the second claw 518, the square locking support 513 moves up and blocks the second claw 518 on the outside of the second claw support 510, fixing the position of the second claw 518 so that it cannot be displaced.

[0199] Specifically, a locking pin hole is provided in the middle of the rectangular bracket 516. A second locking pin 524, used to lock the rectangular bracket 516, engages with the locking pin hole in the middle of the rectangular bracket 516. The two ends of the rectangular bracket 516 are fixedly connected to two claw locking buckles 514 on the same side. The two claw locking buckles 514 on the same side constitute a group, or in other words, the two claw locking buckles 514 connected to the same rectangular bracket 516 constitute a group.

[0200] In one embodiment of the present invention, the pitch of the spiral groove 419 on the first jaw support 42, the internal threads of the internally threaded sleeve 43, and the external threads on the upper half of the second support 51 in the support point adjustment device 4 are all identical. The third gear 44 and the fourth gear 56 have the same number of teeth. Therefore, the distance the first jaw 47 in the support point adjustment device 4 rotates and descends along the spiral groove 419 on the first jaw support 42 is equal to the distance the second support 51 moves relative to the T-shaped support 411.

[0201] Specifically, if Figure 9 、 Figure 10 、 Figure 14 、 Figure 15As shown, the cross-sections of the first and second circular grooves are both right triangles. The direction of the oblique cone surface of the circular grooves is their orientation, with the first circular groove oriented upward and the second circular groove oriented downward. When the first claw 47 rotates and descends along the spiral groove 419, that is, the first claw 47 moves downward relative to the first support 410 and the second support 51 moves upward relative to the second claw 518, the first claw 47 can fully engage with the first circular groove, and the second claw 518 can fully engage with the second circular groove.

[0202] During operation: the second claw 518 in the support point locking device 5 and the first claw 47 in the support point adjusting device 4 are on the same horizontal plane, and by adjusting the relative position of the second pillar 51 and the T-shaped support 411, the annular groove on the second pillar 51 is flush with the annular groove on the first pillar 410; when the curved surface component is placed above the T-shaped support 411, the T-shaped support 411 drives the first pillar 410 and the second pillar 51 to descend together, and the second compression spring 48 and the third compression spring 52 are compressed synchronously.

[0203] When the first square guide rod 22 and the first pillar 410 drop to the lowest point, the first locking pin 415 and the second locking pin 524 are unlocked; the second locking pin 524 moves out from the locking pin hole on the rectangular bracket 516, and under the elastic force of the unlocking spring 515, the two rectangular brackets 516 move away from each other, driving the two sets of claw locking buckles 514 to move away from each other, and the claw locking buckle 514 moves out from the locking groove 523 in the middle section of the second claw 518, unlocking the second claw 518; after the second claw 518 is unlocked, it can be displaced in the radial direction of the second claw support 510 under the elastic force of the second claw spring 519, that is, approaching the second pillar 51, and snapping into the annular groove on the second pillar 51.

[0204] In step S3 , after the first locking pin 415 is unlocked, the snap ring 46 moves upward under the elastic force of the first thrust spring 45 to block the first claw 47 . After the first claw 47 cannot move, the first pillar 410 cannot move either.

[0205] In step S3, after the second locking pin 524 is unlocked, the square locking support 513 is unlocked, and the square locking support 513 moves upward under the elastic force of the second thrust spring 512 until it touches the second claw support 510 and stops moving upward. The square locking support 513 also blocks the two ends of the second claws 518 on both sides of the second pillar 51, so that the second claws 518 arranged in a symmetrical array cannot move away from each other, and the second pillar 51 cannot move up and down under the locking of the second claws 518 on both sides.

[0206] At the same time, the second pillar 51 cannot rotate relative to the T-shaped support 411. When the second pillar 51 cannot move downward and rotate, the third square guide rod 53, the fourth gear 56, the fifth gear 58, the third gear 44, and the internal threaded sleeve 43 cannot rotate either; when the internal threaded sleeve 43 cannot rotate, the first claw 47 cannot slide along the spiral groove on the first claw support 42, that is, it cannot continue to descend. When the first claw 47 cannot descend, the first pillar 410 and the T-shaped support 411 fixedly connected thereto cannot continue to descend, and the entire support point position adaptive device 3 is completely locked. In other words, by locking the second pillar 51 through the square locking support 513 and the second claw 518, the reverse locking of the first pillar 410 is achieved, ensuring the overall stability of the support point position adaptive device 3.

[0207] Compared with the prior art, the technical solution provided by this embodiment has at least one of the following beneficial effects:

[0208] The automatic locking method of the multi-point flexible support device of the present invention utilizes the "multi-point surface" support principle and can achieve stable support for any component with complex curved surface features without any power source.

[0209] The automatic locking method of the multi-point flexible support device of the present invention, the support point control device can accurately control the locking time of the support point, and the support point adaptive device can effectively avoid the stability of the flexible support structure and the shaking of the structural parts through the locking cooperation of the movable claws on the pillars, thereby ensuring the stability of complex curved surface components during the processing, and playing a positive role in improving the processing accuracy of parts.

[0210] The automatic locking method of the multi-point flexible support device of the present invention is that a curved surface component is placed on the support point adaptive device 3 arranged in an array. The second support plate 412, T-shaped support 411 and the first pillar 410 and the second pillar 51 in each support point adaptive device 3 have different descending heights, but through the engagement of the first claw 47 and the second claw 518 with the circular grooves of the first pillar 410 and the second pillar 518 and the locking of the first claw 47 and the second claw 518 by the snap ring 46 and the square locking support 513, the first pillar 410 and the second pillar 51 can be completely locked at any position, so that the curved surface component cannot continue to fall.

[0211] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. An automatic locking method for a multi-point flexible support device, characterized in that: include: Step S1: placing the curved surface component on a multi-point flexible support device; The first support plate and the second support plate of the multi-point flexible support device are forced to move downward until the elastic force of the multi-point flexible support device is balanced with the gravity of the curved surface component; The support point adaptive device includes: a second support plate, a locking pin assembly, a T-shaped support, a support point position adjustment device and a support point position locking device; the second support plate is used to contact the lower surface of the complex curved surface component; the second support plate is connected to the upper end of the T-shaped support through a ball joint; The support point adjustment device includes: an externally threaded base, a first claw support, an internally threaded sleeve, a first pillar, a second square guide rod and a second compression spring; the upper end of the first pillar is fixedly connected to the T-shaped support; the lower end of the first pillar is provided with a square hole, and is slidably matched with the second square guide rod through the square hole; a second compression spring is arranged between the first pillar and the second square guide rod; the outer surface of the first pillar is provided with a plurality of first circular grooves arranged in parallel; a threaded groove is provided on the first claw support; one end of the first claw is provided with a first ratchet, the first ratchet can be clamped in the first circular groove, and the other end passes through the first spring positioning block and the threaded groove and is slidably installed in the through hole on the internally threaded sleeve; a first claw spring is arranged between the first spring positioning block and the first ratchet; the first claw support is fixedly connected to the externally threaded base, and the internally threaded sleeve is screwed to the outside of the externally threaded base through threads; The support point locking device includes: a second pillar, a third compression spring, a third shaped guide rod, a second claw support, a second claw, a second claw spring and a claw limiting assembly; the upper half of the second pillar is provided with an external thread and is screwed to the T-shaped support by a thread; the second pillar is sleeved on the outside of the third shaped guide rod and can slide relatively; a third compression spring is provided between the second pillar and the third shaped guide rod; the second claw support is sleeved on the outside of the second pillar and the third shaped guide rod, and the second claw is installed on the second claw support along its radial direction; the lower half of the second pillar is provided with a second circular groove; the second claw is slidably mounted on the second claw support, and a second ratchet is provided at the end of the second claw, and a second claw spring is provided between the second ratchet and the second claw support; a locking groove is provided at the tail of the second claw; the claw limiting assembly cooperates with the locking groove to limit the displacement of the second claw relative to the second claw support; when the claw limiting assembly is unlocked, the second ratchet can engage with the second circular groove; The third gear is fixedly mounted on the outside of the internal threaded sleeve; the third gear is meshed with the fourth gear through the fifth gear; the fourth gear is fixedly connected to the third shaped guide rod through a fixing bolt; Step S2: The support point position control device drives the first locking pin and the second locking pin of the support point position adaptive device to unlock via the gear transmission mechanism; Step S3: The first locking pin unlocks the retaining ring of the support point adjustment device, and the retaining ring is displaced to limit the first claw under the drive of the first thrust spring; the second locking pin unlocks the second claw of the support point locking device, and the second claw is engaged with the second circular ring groove on the second pillar under the push of the second claw spring; and the second pillar is locked.

2. According to the automatic locking method of a multi-point flexible support device according to claim 1, in step S1, in the initial state, the first locking pin is vertically arranged between the retaining ring and the internal threaded sleeve; it is used to limit the displacement of the retaining ring and the rotational movement of the internal threaded sleeve; the second locking pin is inserted into the rectangular bracket to lock the position of the claw locking buckle.

3. An automatic locking method for a multi-point flexible support device according to claim 2, in the step S1, the second support plate of the multiple support point adaptive device descends to different heights to adapt to the bottom shape of the curved component; the first support plate is connected to the first support rod through a ball joint; the second support plate is connected to the T-shaped support through a ball joint; the upper surfaces of the first support plate and the second support plate are tangent to the lower surface of the curved component.

4. The automatic locking method for a multi-point flexible support device according to claim 3, wherein in step S2, the support point position control device controls the unlocking moment of the support point position adjustment device and the support point control device, and the control process is as follows: Step S21: The first support rod moves downward and compresses the first compression spring. When the boss at the bottom of the first support rod contacts the inclined end surface of the end of the locking claw, the first support rod continues to move downward and pushes the locking claw to move to both sides. Step S22: The locking claws on both sides move away from each other and out of the push rod; when the first support rod contacts the retaining spring on the locking claw, the first support rod stops descending, and the curved surface member above it also stops descending; After the locking claw moves out of the push rod, the push rod descends linearly along the first square guide rod under the elastic force of the first compression spring; at the same time, the circular guide rod outside the push rod slides along the spiral guide groove on the first spiral tube; during the downward movement of the push rod, the circular guide rod can push the first spiral tube and the first gear to rotate; Step S23: When the first gear rotates, it can drive the first locking pin and the second locking pin to move out of the support point adjustment device and the support point locking device through the gear transmission mechanism.

5. The automatic locking method for a multi-point flexible support device according to claim 4, wherein in step S23, the gear transmission mechanism drives the first locking pin and the second locking pin to move in the following manner: Step S23a: When the first gear rotates, it can drive the first rack to slide linearly relative to the gear support; the first rack drives the plurality of second racks to move via the plurality of second gears; Step S23b: When the second rack is displaced, the first connecting rod and the second connecting rod are driven to deflect, the angle between the first connecting rod and the second connecting rod and the second rack is reduced, and the second pin slides in the U-shaped groove of the second rack and moves away from the first pin; Step S23c: the first connecting rod and the second connecting rod pull the first locking pin out of the support point adjustment device; at the same time, the first fixing bracket and the second fixing bracket move away from each other, driving the second locking pin to move out of the support point locking device.

6. According to the automatic locking method of a multi-point flexible support device according to claim 5, in the step S1, a support point adjustment device and a support point locking device are arranged in parallel below the T-shaped support; when the T-shaped support moves downward due to gravity, the first pillar moves downward relative to the second square guide rod and compresses the second compression spring; at the same time, the second pillar moves downward relative to the third square guide rod and compresses the third compression spring.

7. An automatic locking method for a multi-point flexible support device according to claim 6, wherein in step S1, when the first pillar moves downward, the first claw slidably mounted on the internally threaded sleeve and the first pillar are relatively displaced, and the first claw switches to a different first annular groove for engagement.

8. According to the automatic locking method of a multi-point flexible support device according to claim 7, in step S3, after the first locking pin is removed, the first claw spring causes the first claw to slide along the threaded groove on the first claw support; the first claw rotates circumferentially relative to the first pillar, and at the same time, the first claw displaces axially relative to the first pillar until the first claw is completely aligned with the first circular groove; the first claw is completely engaged with the first circular groove under the thrust of the first claw spring.

9. According to the automatic locking method of a multi-point flexible support device according to claim 8, in step S3, when the first claw slides along the thread groove, it can drive the internal threaded sleeve to rotate relative to the external threaded base; when the internal threaded sleeve rotates relative to the external threaded base, it synchronously moves downward relative to the external threaded base, thereby driving the first claw to move downward and be completely aligned with the first circular groove of the first pillar.

10. The automatic locking method of a multi-point flexible support device according to claim 9, wherein in step S3, the locking process of the second claw on the second pillar is: Step S31: The second locking pin unlocks the second claw; the second claw engages with the second circular groove of the second pillar; Step S32: When the internally threaded sleeve rotates, it drives the third gear fixedly connected thereto to rotate; the third gear transmits the rotational motion to the fourth gear via the fifth gear; the fourth gear drives the third annular guide rod fixedly connected thereto to rotate, and drives the second pillar to rotate via the third annular guide rod; Step S33: When the second pillar rotates, it can move relative to the T-shaped support so that the second annular groove is completely aligned with the second claw, and then the second claw is completely engaged in the second annular groove.

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