Clamping device with locking function for automobile seat beam

Abstract

The utility model discloses a clamping device with a locking function for an automobile seat cross beam, which belongs to the technical field of laser welding and comprises a turnover mechanism, a first pressing mechanism, a second pressing mechanism and a third pressing mechanism. A lower cross beam and an upper cross beam of a seat cross beam are pressed and fixed through a first pressing mechanism and a second pressing mechanism correspondingly, the two ends of a pressing arm are locked through a third pressing mechanism, the clamping and fixing reliability of the clamping device is guaranteed, and displacement or deformation in the welding process is prevented; and meanwhile, the two welding seams of the seat cross beam are adjusted to directly face the laser welding gun in sequence through overturning of the overturning table, and the displacement amount of the laser welding gun is reduced. The clamping device with the locking function for the automobile seat cross beam is reasonable in structural design, a plurality of positions on the seat cross beam are pressed and fixed, a laser welding gun is prevented from moving and changing edges by turning over the position of a welding seam, the displacement amount of the laser welding gun is reduced, and the clamping device has good application prospects.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser welding, and in particular relates to a clamping device with a locking function for a crossbeam of an automobile seat. Background Art

[0002] As people's living standards continue to improve, the demand for automobiles as a convenient means of transportation is growing. As a key component of the vehicle body structure, the seat crossbeam not only provides mounting support for seats and other components, but its structural strength also determines the vehicle's safety performance during a side collision.

[0003] During the production of seat crossbars, they are typically assembled from a lower and upper crossbar, with two continuous linear weld areas formed at the joints on either side. These linear weld areas require laser welding using a welding torch. The existing welding process typically clamps the workpiece and holds it stationary, primarily by moving the laser torch to weld each side separately. This requires a high degree of movement for the laser welding equipment. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the utility model provides a clamping device with a locking function for a car seat crossbeam, which can lock and fix the upper and lower crossbeams of the seat crossbeam and reduce the displacement of the laser welding equipment.

[0005] To achieve the above-mentioned object, the utility model provides a clamping device with a locking function for a car seat crossbeam, which includes a flip mechanism, a first pressing mechanism, a second pressing mechanism and a third pressing mechanism;

[0006] The turning mechanism includes a turning platform, which is turnable, and a supporting platform is provided on the turning platform for supporting the seat beam;

[0007] A plurality of the first pressing mechanisms are provided on the turning platform and distributed on both lateral sides and longitudinal sides of the support platform to press and fix the lower crossbeam of the seat crossbeam;

[0008] The second pressing mechanism includes two first rotating drive modules and a pressing arm; the two first rotating drive modules are arranged on the turning table and on both sides of the longitudinal direction of the support platform; the pressing arm extends in the longitudinal direction, and its two ends are respectively connected to the two first rotating drive modules. The pressing arm can be turned over to the top of the support platform under the drive of the first rotating drive module to press and fix the upper crossbeam of the seat crossbeam;

[0009] The third clamping mechanism is set to two at both ends of the pressing arm; the third clamping mechanism includes a second rotation drive module and a first rotating arm; the second rotation drive module is set on the flip platform through a first telescopic cylinder, one end of the first rotating arm is connected to the first rotation drive module, and a first pressing block is set at the other end. The first rotating arm can drive the first pressing block to rotate above the end of the pressing arm under the drive of the second rotation drive module and the first telescopic cylinder, thereby locking the pressing arm.

[0010] As a further improvement of the present invention, the first rotary drive module includes a support, a second rotary arm and a second telescopic cylinder;

[0011] The support is fixed on the turning platform, the second rotating arm is rotatably connected to the support, one end of the second rotating arm is connected to the second telescopic cylinder, and the other end is connected to the end of the pressure arm.

[0012] As a further improvement of the present invention, a plurality of second pressing blocks are longitudinally spaced apart on one side of the pressing arm close to the supporting platform, so as to press the upper crossbeam tightly through the second pressing blocks.

[0013] As a further improvement of the present invention, a first limit block is provided at one end of the second rotating arm close to the pressure arm, and a second limit block is provided at the corresponding position of the support, a V-shaped groove is provided on the first limit block, and a V-shaped protrusion is provided on the second limit block, and when the pressure arm is flipped and pressed, the V-shaped protrusion is matched and embedded in the V-shaped groove.

[0014] As a further improvement of the present invention, a first buffer is further provided in the second pressing mechanism corresponding to the pressing arm to buffer the rotation and pressing of the pressing arm;

[0015] and / or,

[0016] A second buffer is provided in the third pressing mechanism corresponding to the first pressing block to buffer the rotational pressing of the first pressing block.

[0017] As a further improvement of the present invention, it further includes at least one positioning pin, which is installed on the turning platform through a third telescopic cylinder and can pass through the positioning pin holes on the lower beam and the upper beam in sequence under the drive of the third telescopic cylinder.

[0018] As a further improvement of the present invention, the positioning pin is a stepped pin, and the outer diameter of one end thereof close to the turning table is larger than the outer diameter of the other end.

[0019] As a further improvement of the present invention, the first clamping mechanism includes a third rotation drive module and a third rotation arm; the third rotation drive module is connected to the flip platform through a fourth telescopic cylinder, one end of the third rotation arm is connected to the third rotation drive module, and the other end is fixed with a third pressure block. The third rotation arm can drive the third pressure block to rotate to the corresponding position of the lower beam and clamp it under the drive of the third rotation drive module and the fourth telescopic cylinder.

[0020] As a further improvement of the present invention, the flipping mechanism also includes two fourth rotation drive modules, which are respectively arranged on both longitudinal sides of the flipping platform and connected to the ends of the flipping platform to drive the flipping platform to flip through the fourth rotation drive modules.

[0021] As a further improvement of the present invention, the support platform includes a plurality of columns arranged at intervals along the longitudinal direction, and positioning blocks are provided on the columns to position and support the seat crossbeam through the positioning blocks.

[0022] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0023] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0024] (1) The utility model is a clamping device with a locking function for a car seat crossbeam. It clamps and fixes the lower crossbeam and the upper crossbeam of the seat crossbeam respectively through a first clamping mechanism and a second clamping mechanism, and locks and locks the two ends of the pressure arm through a third clamping mechanism, thereby ensuring the reliability of the clamping and fixing of the clamping device and preventing displacement or deformation during welding. At the same time, by turning over the turning table, the two welds of the seat crossbeam are adjusted to face the laser welding gun in turn, thereby reducing the displacement of the laser welding gun.

[0025] (2) The clamping device with a locking function for the automobile seat crossbeam of the present invention installs the positioning pin on the turning table through the third telescopic cylinder, driving the positioning pin to pass through the lower crossbeam and the upper crossbeam in turn, thereby assisting in pre-positioning the relative positions of the two; at the same time, a second pressure block is arranged at a longitudinal interval on the side of the pressure arm close to the support platform to make way for the positioning pin passing through the upper crossbeam.

[0026] (3) The clamping device with a locking function for the automobile seat crossbeam of the utility model is provided with a V-shaped groove and a V-shaped protrusion that can match each other between the second rotating arm and the support, so as to ensure the accuracy and consistency of the clamping position of the pressure arm through the matching embedding of the groove and the protrusion; and the first buffer and the second buffer are provided respectively corresponding to the first pressure block and the pressure arm, so as to avoid mechanical damage between the component and the workpiece and between the components during the pressing process.

[0027] (4) The clamping device with a locking function for the automobile seat crossbeam of the utility model has a reasonable structural design, which realizes the clamping and fixing of multiple positions of the upper and lower crossbeams in the seat crossbeam, and avoids the laser welding gun from moving and changing sides by flipping the weld position, thereby reducing the displacement of the laser welding gun and having good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of a clamping device with a locking function for a car seat crossbeam in an embodiment of the utility model;

[0030] Figure 2 This is a schematic structural diagram of a positioning pin in an embodiment of the present utility model;

[0031] Figure 3 This is a partial structural diagram of a clamping device with a locking function for a car seat crossbeam in an embodiment of the present utility model;

[0032] Figure 4 This is a schematic structural diagram of the second pressing mechanism and the third pressing mechanism in an embodiment of the present utility model;

[0033] Figure 5 yes Figure 4 Enlarged view of part A.

[0034] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. base; 2. flipping mechanism; 201. fourth rotation drive module; 202. flipping table; 203. column; 204. positioning block; 3. first clamping mechanism; 301. third rotation drive module; 302. third rotating arm; 303. third pressure block; 304. fourth telescopic cylinder; 4. positioning pin; 5. second clamping mechanism; 501. support; 502. pressure arm; 503. second rotating arm; 504. second telescopic cylinder; 505. rotating shaft; 506. first limit block; 507. second limit block; 508. second pressure block; 6. third clamping mechanism; 601. second rotation drive module; 602. first rotating arm; 603. first telescopic cylinder; 604. first pressure block; 7. lower beam; 8. upper beam; 9. third telescopic cylinder. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0038] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0040] Example:

[0041] See also Figures 1 to 5 The clamping device with a locking function for a car seat crossbeam in a preferred embodiment of the present invention includes a flipping mechanism 2, a first pressing mechanism 3, a second pressing mechanism 5 and a third pressing mechanism 6, which respectively press and lock the upper crossbeam 8 and the lower crossbeam 7 of the seat crossbeam, and flip the seat crossbeam through the flipping mechanism 2 to facilitate laser welding and reduce the displacement of the laser welding equipment.

[0042] Specifically, if Figure 1 As shown in the figure, the flipping mechanism 2 in the preferred embodiment includes a fourth rotation drive module 201 and a flipping platform 202; wherein, the fourth rotation drive module 201 is provided in two and is installed on the base 1 along the longitudinal interval, and the flipping platform 202 is provided between the two fourth rotation drive modules 201, and its two ends are respectively connected to the two fourth rotation drive modules 201 so as to flip under the drive of the fourth rotation drive module 201.

[0043] At the same time, a support platform is provided on the turning table 202 for supporting and placing the lower crossbeam 7, such as Figure 1 In the preferred embodiment shown, the support platform is a plurality of columns 203 arranged in sequence along the longitudinal direction. Preferably, the columns 203 are I-shaped columns, and a positioning block 204 is provided at one end of the I-shaped column away from the turning platform 202, and the lower crossbeam 7 is positioned and supported by the positioning block 204.

[0044] Furthermore, at least one retractable positioning pin 4 is provided on the turning table 202, which is specifically arranged between any two columns 203, and positioning pin holes are provided at corresponding positions of the lower beam 7 and the upper beam 8. The positioning pin 4 can pass through the positioning pin holes on the lower beam 7 and the upper beam 8 in turn to assist in pre-positioning the lower beam 7 and the upper beam 8.

[0045] like Figure 2 As shown in the figure, the positioning pin 4 in the preferred embodiment is installed on the turning table 202 through the third telescopic cylinder 9, so that the positioning pin 4 can be vertically telescoped under the drive of the third telescopic cylinder 9, and the positioning and release of the lower beam 7 and the upper beam 8 can be achieved through vertical telescopic expansion.

[0046] Preferably, the positioning pin 4 is set as a step pin, and the outer diameter of one end close to the turning table 202 is larger than the outer diameter of the other end, and the size of the positioning pin hole on the lower beam 7 is larger than the size of the positioning pin hole on the upper beam 8 to improve positioning accuracy.

[0047] Preferably, longitudinal adjustment components and transverse adjustment components are respectively provided corresponding to the positioning pins 4 to adjust the transverse and longitudinal position coordinates of the positioning pins 4 according to the specifications of the upper and lower beams.

[0048] Preferably, a plurality of positioning pins 4 are provided at intervals along the longitudinal direction on the turning table 202 to simultaneously position the upper and lower beams and ensure positioning accuracy. Figure 2 In the preferred embodiment shown, a positioning pin 4 is provided between the two upright posts 203 near the two ends.

[0049] Further, if Figure 3 As shown in , the first clamping mechanism 3 in the preferred embodiment is arranged on both lateral and longitudinal sides of the supporting platform, and clamps and fixes the lower crossbeam 7 from both lateral and longitudinal ends respectively, specifically including a third rotation drive module 301 and a third rotation arm 302, wherein the third rotation drive module 301 is fixed to the flip table 202 through a fourth telescopic cylinder 304, one end of the third rotation arm 302 is connected to the first drive shaft of the third rotation drive module 301, and the other end is fixedly provided with a third pressure block 303, and the third rotation arm 302 can rotate around the first drive shaft under the drive of the third rotation drive module 301, so that the third pressure block 303 can rotate to the corresponding position with the lower crossbeam 7, and is driven and clamped by the fourth telescopic cylinder 304, thereby fixing the lower crossbeam 7.

[0050] like Figure 3 As shown, a plurality of first clamping mechanisms 3 are arranged at intervals along the longitudinal direction on both sides of the support platform, and the outer side surface of the lower beam 7 is pressed at the same time, and it is further preferred that two third clamping blocks 303 are arranged at intervals along the longitudinal direction at the end of the third rotating arm 302 away from the flip axis to increase the clamping area of the lower beam 7.

[0051] Correspondingly, the first clamping mechanism 3 arranged on both longitudinal sides of the support platform presses the inner bottom surfaces of both ends of the lower beam 7, and preferably an avoidance slope is set on the top of the third pressure block 303 to avoid the upper beam 8 when the third pressure block 303 rotates and extends into the lower beam 7.

[0052] Further, if Figure 4 As shown in , the second clamping mechanism 5 in the preferred embodiment includes two first rotary drive modules and a clamping arm 502, wherein the two first rotary drive modules are arranged on both longitudinal sides of the support platform; the clamping arm 502 extends longitudinally, and its two ends are respectively connected to the two first rotary drive modules, so that the clamping arm 502 can be flipped to the top of the support platform under the drive of the first rotary drive module, and the upper beam 8 is clamped and fixed, so that it can better fit different positions on the surface of the upper beam 8.

[0053] Specifically, if Figure 5 As shown in , the first rotation drive module includes a support 501, a second rotating arm 503 and a second telescopic cylinder 504, wherein the support 501 is fixed on the turning table 202, the second rotating arm 503 is rotatably connected to the support 501 through a rotating shaft 505, and one end of the second rotating arm 503 is connected to the second telescopic cylinder 504, so that under the telescopic movement of the second telescopic cylinder 504, one end of the second rotating arm 503 is driven to rotate around the rotating shaft 505, and the other end of the second rotating arm 503 is fixedly connected to the end of the pressing arm 502; accordingly, the two ends of the pressing arm 502 are respectively fixedly connected to the second rotating arms 503 on both sides away from one end of the second telescopic cylinder 504, and then under the telescopic movement of the second telescopic cylinder 504, the pressing arm 502 is driven to flip around the rotating shaft 505, so as to flip to the top of the upper beam 8 to press the upper beam 8.

[0054] Preferably, a plurality of second pressing blocks 508 are arranged at longitudinal intervals on one side of the pressing arm 502 close to the support platform, and the upper beam 8 is contacted and pressed by the second pressing blocks 508, so as to leave avoidance space for the end of the positioning pin 4 extending out of the upper beam 8 through the intervals between the second pressing blocks 508.

[0055] Preferably, a first limit block 506 is provided at one end of the second rotating arm 503 close to the pressing arm 502, and a second limit block 507 is provided at the corresponding position of the support 501. At the same time, a V-shaped groove is provided on the first limit block 506, and a V-shaped protrusion is provided on the second limit block 507, so that when the pressing arm 502 is flipped and pressed, the V-shaped protrusion can be matched and embedded in the V-shaped groove, thereby ensuring the accuracy and consistency of the pressing position through the groove-protrusion combination.

[0056] Preferably, a first buffer is further provided in the second pressing mechanism 5 corresponding to the flipping and pressing of the pressing arm 502 , so as to buffer the downward pressing of the pressing arm 502 and avoid mechanical damage to the upper crossbeam 8 .

[0057] Furthermore, in the preferred embodiment, two third clamping mechanisms 6 are provided corresponding to the second clamping mechanism 5, and are respectively provided at both ends of the pressing arm 502, so that when the pressing arm 502 presses down the crossbeam 8, the pressing arm 502 is further locked to prevent the pressing arm 502 from loosening, thereby playing a secondary clamping function and preventing the occurrence of unreliable clamping caused by the failure of a single clamping function during welding or flipping.

[0058] Specifically, if Figure 5 As shown in the figure, the third clamping mechanism 6 includes a second rotary drive module 601 and a first rotary arm 602, wherein the second rotary drive module 601 is connected to the flip table 202 through a first telescopic cylinder 603; one end of the first rotary arm 602 is connected to the second drive shaft of the second rotary drive module 601, and the other end is fixed with a first pressing block 604, which then rotates around the second drive shaft under the drive of the second rotary drive module 601, so that the first pressing block 604 can be flipped to above the end of the pressing arm 502, and pressed down and locked from the end of the pressing arm 502 under the drive of the first telescopic cylinder 603.

[0059] Preferably, a second buffer is further provided in the third pressing mechanism 6 corresponding to the first pressing block 604 to buffer the rotational pressing of the first pressing block 604 to avoid indirect mechanical damage to the upper beam 8 .

[0060] Preferably, a sensor is also provided on the supporting platform to sense whether the lower crossbeam 7 and the upper crossbeam 8 are in place.

[0061] Furthermore, the present invention utilizes the above-mentioned clamping device with a locking function for automobile seat crossbeams to weld the seat crossbeams in the following operation process:

[0062] (1) Place the lower crossbeam 7 on the support platform, and place the upper crossbeam 8 on the lower crossbeam 7. Move the locating pin 4 upward until it passes through the locating pin holes on the lower crossbeam 7 and the upper crossbeam 8 in sequence.

[0063] (2) The pressing arm 502 in the second pressing mechanism 5 is flipped to the top of the upper crossbeam 8 and presses the upper crossbeam 8 downward; the first pressing block 604 of the third pressing mechanism 6 is flipped to the top of the end of the pressing arm 502 and presses the pressing arm 502 downward to lock it;

[0064] (3) The first pressing mechanisms 3 located on both sides of the support platform in the longitudinal direction press the two ends of the lower cross beam 7, and the first pressing mechanisms 3 located on both sides of the support platform in the transverse direction press the two sides of the lower cross beam 7;

[0065] (4) The movable laser welding gun moves longitudinally to weld the welds on one side of the lower crossbeam 7 and the upper crossbeam 8;

[0066] (5) The fourth rotary drive module 201 drives the flip table 202 to flip 180 degrees, so that the weld on the other side of the lower beam 7 and the upper beam 8 is transferred to the side where the movable laser welding gun is located. The movable laser welding gun moves longitudinally again to weld the weld on this side, thus completing the welding of the seat beam.

[0067] The clamping device with a locking function for the automobile seat crossbeam of the utility model has a reasonable structural design, realizes the compression and fixation of multiple positions on the seat crossbeam, and avoids the movement and side change of the laser welding gun by flipping the weld position, thereby reducing the displacement of the laser welding gun and having good application prospects.

[0068] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A clamping device with a locking function for a car seat crossbeam, characterized in that: It includes a turning mechanism, a first pressing mechanism, a second pressing mechanism and a third pressing mechanism; The turning mechanism includes a turning platform, which is turnable, and a supporting platform is provided on the turning platform for supporting the seat beam; A plurality of the first pressing mechanisms are provided on the turning platform and distributed on both lateral sides and longitudinal sides of the support platform to press and fix the lower crossbeam of the seat crossbeam; The second pressing mechanism includes two first rotating drive modules and a pressing arm; the two first rotating drive modules are arranged on the turning table and on both sides of the longitudinal direction of the support platform; the pressing arm extends in the longitudinal direction, and its two ends are respectively connected to the two first rotating drive modules. The pressing arm can be turned over to the top of the support platform under the drive of the first rotating drive module to press and fix the upper crossbeam of the seat crossbeam; The third clamping mechanism is set to two at both ends of the pressing arm; the third clamping mechanism includes a second rotation drive module and a first rotating arm; the second rotation drive module is set on the flip platform through a first telescopic cylinder, one end of the first rotating arm is connected to the first rotation drive module, and a first pressing block is set at the other end. The first rotating arm can drive the first pressing block to rotate above the end of the pressing arm under the drive of the second rotation drive module and the first telescopic cylinder, thereby locking the pressing arm.

2. The clamping device with a locking function for a car seat crossbeam according to claim 1, characterized in that: The first rotary drive module includes a support, a second rotary arm and a second telescopic cylinder; The support is fixed on the turning platform, the second rotating arm is rotatably connected to the support, one end of the second rotating arm is connected to the second telescopic cylinder, and the other end is connected to the end of the pressure arm.

3. The clamping device with a locking function for a car seat crossbeam according to claim 2, characterized in that: A plurality of second pressing blocks are arranged at intervals along the longitudinal direction on one side of the pressing arm close to the supporting platform, so as to press the upper beam tightly through the second pressing blocks.

4. The clamping device with a locking function for a car seat crossbeam according to claim 2, characterized in that: A first limit block is provided at one end of the second rotating arm close to the pressing arm, and a second limit block is provided at a corresponding position of the support. A V-shaped groove is provided on the first limit block, and a V-shaped protrusion is provided on the second limit block. When the pressing arm is flipped and pressed, the V-shaped protrusion is matched and embedded in the V-shaped groove.

5. The clamping device with a locking function for a car seat crossbeam according to any one of claims 1 to 4, characterized in that: A first buffer is further provided in the second pressing mechanism corresponding to the pressing arm to buffer the rotation and pressing of the pressing arm; and / or, A second buffer is provided in the third pressing mechanism corresponding to the first pressing block to buffer the rotational pressing of the first pressing block.

6. The clamping device with a locking function for a car seat crossbeam according to claim 1, characterized in that: It also includes at least one positioning pin, which is installed on the turning platform through a third telescopic cylinder and can pass through the positioning pin holes on the lower beam and the upper beam in sequence under the drive of the third telescopic cylinder.

7. The clamping device with a locking function for a car seat crossbeam according to claim 6, characterized in that: The positioning pin is a step pin, and the outer diameter of one end of the positioning pin close to the turning table is larger than the outer diameter of the other end.

8. The clamping device with a locking function for a car seat crossbeam according to claim 1, characterized in that: The first clamping mechanism includes a third rotation drive module and a third rotation arm; the third rotation drive module is connected to the flip platform through a fourth telescopic cylinder, one end of the third rotation arm is connected to the third rotation drive module, and the other end is fixed with a third pressure block. The third rotation arm can drive the third pressure block to rotate to the corresponding position of the lower beam and clamp it under the drive of the third rotation drive module and the fourth telescopic cylinder.

9. The clamping device with a locking function for a car seat crossbeam according to claim 1, characterized in that: The flipping mechanism further includes two fourth rotation drive modules, which are respectively arranged on both longitudinal sides of the flipping platform and connected to the ends of the flipping platform to drive the flipping platform to flip through the fourth rotation drive modules.

10. The clamping device with a locking function for a car seat crossbeam according to claim 1, characterized in that: The support platform includes a plurality of columns spaced apart in the longitudinal direction, and positioning blocks are provided on the columns to position and support the seat crossbeam through the positioning blocks.

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