Cylinder mechanical valve cooperative mistake-proof clamping structure

Abstract

The application discloses a kind of air cylinder mechanical valve collaborative mistake-proof clamping structures, belong to the technical field of cargo box floor assembly welding fixture, including base, the middle position at the top of base is equipped with the support mechanism of support cross beam.By setting position adjusting mechanism at the both ends of base, the position of vertical plate can be adjusted according to the length of the cross beam to be installed during use, to ensure that the distance between vertical plates is strictly controlled in the range of greater than the target cross beam length and less than the larger specification cross beam length, and then a limiting effect can be formed during assembly to avoid the installation of longer specification cross beam.In addition, during clamping, a horizontal rod and a second spring are arranged between the vertical plate and the clamping plate, and a mechanical valve on the limiting block and the L-shaped mounting plate is cooperated to form a linkage judgment.

Description

Technical Field

[0001] This invention relates to an anti-misalignment clamping structure, and more particularly to a cylinder-mechanical valve coordinated anti-misalignment clamping structure, belonging to the technical field of cargo box floor assembly welding clamps. Background Technology

[0002] In the automotive body manufacturing industry, the floor assembly is a key component constituting the body's load-bearing frame, and its assembly precision directly determines the overall structural strength and dimensional stability of the vehicle body. The cargo box floor assembly process involves three differentiated states during the production stage. Among these, the core component, the floor beam, exhibits extremely high structural similarity, with some overlap in product characteristics and only minor differences in length, making rapid and accurate differentiation difficult.

[0003] Currently, the clamping of these floor beams in production often uses general-purpose tooling structures without specific error-proofing and limiting mechanisms. Due to the similarity of the floor beams, operators are prone to misassembly during assembly due to visual misjudgment or operational negligence, i.e., installing floor beams of different lengths and specifications at the wrong workstations. Incorrectly installed floor beams will directly cause problems such as weld point deviations and weld dimensional deviations in subsequent welding processes, ultimately leading to the scrapping of the entire floor assembly due to welding errors. Such scrapping not only results in significant waste of raw materials and processing costs but also disrupts the production cycle and reduces overall production efficiency. Furthermore, if incorrectly installed parts are not detected in time and flow into downstream processes, they may cause a chain reaction of problems such as subsequent assembly interference, seriously affecting the quality stability of the vehicle body manufacturing.

[0004] Therefore, there is an urgent need for a clamping structure that can accurately identify the difference in length of the base plate beam and effectively avoid misassembly, so as to solve the pain point of error prevention in the existing production. Summary of the Invention

[0005] The main objective of this invention is to provide a cylinder-mechanical valve coordinated anti-misalignment clamping structure. By setting a position adjustment mechanism consisting of a slide groove, slider, motor, and lead screw on the top of the slide table, the position of the vertical plate can be adjusted according to the length of the crossbeam to be installed during use. This ensures that the spacing between the vertical plates is strictly controlled within a range greater than the target crossbeam length but less than the length of a larger crossbeam, thus providing a limiting effect during assembly and preventing the insertion of longer crossbeams. Furthermore, during clamping, a crossbar and a second spring are set between the vertical plate and the clamping plate, which, together with the limiting block and the mechanical valve on the L-shaped mounting plate, form a linkage judgment. The mechanical valve is electrically connected to the cylinder clamping mechanism. When the telescopic cylinder controls the slide table and vertical plate to move a fixed distance, if the mechanical valve is not triggered, it indicates that the clamping plate has not squeezed and limited the end of the crossbeam. At this time, the cylinder clamping mechanism does not start clamping. The dual design of physical blocking for excessively long crossbeams and linkage clamping for shorter ones enables precise interception of crossbeams of varying lengths, effectively preventing clamping errors. A vertical groove is provided on the outer side of the clamping plate, which, along with a prompting mechanism consisting of a sliding plate, a first spring, a vertical rod, a fixed plate, a contact switch, and a buzzer, ensures the clamping plate can move downwards when the crossbeam is clamped due to excessive length. Its own weight compresses the clamping plate, causing the sliding plate to move downwards along the vertical groove, triggering the contact switch on the fixed plate and activating the buzzer to sound an alarm. This design proactively alerts operators when crossbeams are clamped beyond their length, complementing the linkage judgment of the mechanical valve and cylinder clamping mechanism. Through this dual alert of action interception and signal alarm, operators can quickly detect mis-installation problems, significantly reducing the risk of mis-installed parts flowing into subsequent processes due to delayed detection.

[0006] The objective of this invention can be achieved by adopting the following technical solution:

[0007] A cylinder-mechanical valve cooperative anti-misalignment clamping structure includes a base, and a support mechanism for supporting a crossbeam is provided at the middle position of the top of the base.

[0008] The support mechanism is symmetrically equipped with cylinder clamping mechanisms on both sides to support and clamp the ends of the crossbeam.

[0009] Telescopic cylinders are symmetrically installed at both ends of the base. A slide is installed at the output end of each telescopic cylinder. The slide slides along the length of the base, and a carrier plate is installed on the top of each slide along the length.

[0010] The top of each carrier plate is vertically fixed with a vertical plate, and the side of each vertical plate closest to the support mechanism is vertically equipped with a clamping plate.

[0011] A horizontal bar is slidably mounted on the top of each vertical plate. One end of the horizontal bar is connected to a clamping plate. A second spring is provided between the clamping plate and the vertical plate, and the second spring is sleeved on the outside of the horizontal bar.

[0012] The end of the crossbar away from the clamping plate passes through the vertical plate and is fixed with a limit block. An L-shaped mounting plate is fixed to the top of the side of the vertical plate away from the clamping plate. A mechanical valve is installed at the top of the L-shaped mounting plate, directly opposite the limit block. The mechanical valves at both ends of the base are electrically connected to two sets of cylinder clamping mechanisms.

[0013] The top of the slide table is equipped with a position adjustment mechanism, which is used to adjust the spacing between the two sets of clamps according to the length of the installed crossbeam;

[0014] A warning mechanism is provided between the outer side of the clamping plate and the vertical plate to indicate when the crossbeam is too long.

[0015] Preferably, guide grooves are provided at both ends of the top of the base, the guide grooves are parallel to the length direction of the base, and the slide is slidably installed inside the guide grooves.

[0016] Preferably, the support mechanism includes a first bracket and a first L-shaped pad. The first bracket is fixed at the middle position of the top of the base, and the first L-shaped pads are symmetrically arranged on the top of the first bracket. The first L-shaped pads are supported on both sides of the bottom of the crossbeam.

[0017] Preferably, the cylinder clamping mechanism includes a second bracket, a second L-shaped pad, a clamping cylinder, an extension rod, a pressure block, and a protective shell. The second bracket is fixed at both ends of the top of the base. The second L-shaped pads are symmetrically arranged on the top of the second bracket. The clamping cylinder is installed on the outside of the second bracket. The clamping cylinder is provided with a protective shell on the outside of the clamping cylinder. An extension rod is fixed on the swing arm of the clamping cylinder. A pressure block that cooperates with the second L-shaped pad is fixed at the bottom end of the extension rod. The clamping cylinder is electrically connected to a mechanical valve.

[0018] Preferably, the position adjustment mechanism includes a slide groove, a slider, a motor, and a lead screw. The slide groove is located on the top of the slide table, and a slider is slidably arranged inside the slide groove. The slider is fixedly connected to the carrier plate. A motor is installed at one end of the slide table, and a lead screw is installed at the output end of the motor. The lead screw is threadedly connected to the slider.

[0019] Preferably, there are symmetrical reinforcing ribs between the vertical plate and the carrier plate, and the shape of the reinforcing ribs is triangular.

[0020] Preferably, the clamping plate has a limiting groove on the side near the crossbeam, and the top of the limiting groove has a slanted guide edge.

[0021] Preferably, the prompting mechanism includes a vertical groove, a sliding plate, a first spring, a fixed plate, a contact switch, and a buzzer. The vertical groove is opened on the outside of the clamping plate. A sliding plate is vertically slidably installed inside the vertical groove. The end of the crossbar is fixedly connected to the side of the sliding plate. A first spring is provided between the sliding plate and the inner top of the vertical groove. A fixed plate is fixed at the middle position of the side of the vertical plate near the clamping plate. A contact switch is installed on the top of the fixed plate. The contact switch is located directly below the clamping plate. A buzzer is installed on the top of the base. The contact switch is electrically connected to the buzzer.

[0022] Preferably, vertical rods are fixed at both ends of the vertical groove, the vertical rods are slidably connected to the slide plate, and the vertical rods pass through the inside of the first spring.

[0023] Preferably, a wheel frame is installed at the middle position of the bottom of the base, with a swivel wheel installed on one side of the wheel frame and a directional wheel installed on the other side of the wheel frame.

[0024] The beneficial effects of this invention are as follows:

[0025] This invention provides a cylinder-mechanical valve coordinated anti-misalignment clamping structure. By setting a position adjustment mechanism consisting of a slide groove, slider, motor, and lead screw on the top of the slide table, the position of the vertical plate can be adjusted according to the length of the crossbeam to be installed during use. This ensures that the spacing between the vertical plates is strictly controlled within a range greater than the target crossbeam length but less than the length of a larger crossbeam. This provides a limiting effect during assembly, preventing the installation of longer crossbeams. In addition, during the clamping process, a crossbar and a second spring are set between the vertical plate and the clamping plate. This, along with the limiting block and the mechanical valve on the L-shaped mounting plate, forms a linkage judgment. The mechanical valve is electrically connected to the cylinder clamping mechanism. When the telescopic cylinder controls the slide table and the vertical plate to move a fixed distance, if the mechanical valve is not triggered, it means that the clamping plate has not squeezed and limited the end of the crossbeam. At this time, the cylinder clamping mechanism does not start clamping. Through the dual design of physical blocking of long crossbeams and linkage clamping of short crossbeams, the precise interception of crossbeams of different lengths is achieved, effectively avoiding clamping errors.

[0026] By creating a vertical groove on the outside of the clamping plate, and combining it with a prompting mechanism consisting of a sliding plate, a first spring, a vertical rod, a fixed plate, a contact switch, and a buzzer, the end of the crossbar is fixed to the sliding plate to ensure that the clamping plate can move downwards. When the crossbeam is clamped due to excessive length, its own weight will squeeze the clamping plate, causing the sliding plate to move downwards along the vertical groove, thereby triggering the contact switch on the fixed plate and activating the buzzer to issue an alarm signal. This design can proactively issue a prompt when the crossbeam is clamped to an excessive length. It complements the linkage judgment of the mechanical valve and the cylinder clamping mechanism. Through the dual prompts of action interception and signal alarm, it helps operators quickly detect misinstallation problems and significantly reduces the risk of misinstalled parts flowing into subsequent processes due to delayed detection. Attached Figure Description

[0027] Figure 1 This is a top view of the beam clamping state in a preferred embodiment of a cylinder-mechanical valve cooperative anti-misalignment clamping structure of the present invention;

[0028] Figure 2 This is a top view of the initial state of a preferred embodiment of a cylinder-mechanical valve cooperative anti-misalignment clamping structure of the present invention;

[0029] Figure 3 This is a bottom structure diagram of the base plate of a preferred embodiment of the cylinder-mechanical valve cooperative anti-misalignment clamping structure of the present invention;

[0030] Figure 4 This is an exploded view of the error-proofing component in a preferred embodiment of the cylinder-mechanical-valve collaborative error-proofing clamping structure of the present invention;

[0031] Figure 5 This is a front view of the error-proofing component in a preferred embodiment of the cylinder-mechanical-valve collaborative error-proofing clamping structure of the present invention;

[0032] Figure 6 This is a cross-sectional view of a slide table in a preferred embodiment of a cylinder-mechanical valve cooperative anti-misalignment clamping structure of the present invention;

[0033] Figure 7 This is a schematic diagram of a clamping plate in a preferred embodiment of a cylinder-mechanical valve cooperative anti-misalignment clamping structure of the present invention;

[0034] Figure 8 This is a diagram of the support mechanism of a preferred embodiment of the cylinder-mechanical-valve cooperative anti-misalignment clamping structure of the present invention;

[0035] Figure 9 This is a diagram of a cylinder clamping mechanism in a preferred embodiment of a cylinder-mechanical-valve cooperative anti-misalignment clamping structure of the present invention.

[0036] In the picture: 1. Base;

[0037] 2. Support mechanism; 201. First bracket; 202. First L-shaped pad;

[0038] 3. Cylinder clamping mechanism; 301. Second bracket; 302. Second L-shaped pad; 303. Clamping cylinder; 304. Extension rod; 305. Pressure block; 306. Protective shell;

[0039] 4. Guide groove; 5. Slide table; 6. Telescopic cylinder; 7. Carrier plate;

[0040] 8. Position adjustment mechanism; 801. Slide groove; 802. Slider; 803. Motor; 804. Lead screw;

[0041] 9. Vertical board;

[0042] 10. Clamping plate; 1001. Limiting groove;

[0043] 11. Vertical groove; 1101. Vertical rod;

[0044] 12. Slide plate; 13. First spring; 14. Crossbar; 15. Second spring; 16. Limit block; 17. L-shaped mounting plate; 18. Mechanical valve; 19. Fixing plate; 20. Contact switch; 21. Buzzer; 22. Wheel frame; 23. Caster wheel; 24. Fixed wheel. Detailed Implementation

[0045] To enable those skilled in the art to more clearly understand the technical solution of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0046] Example 1

[0047] like Figures 1-9 As shown, this embodiment provides a cylinder mechanical valve cooperative anti-misalignment clamping structure, including a base 1, and a support mechanism 2 for supporting the crossbeam is provided at the middle position of the top of the base 1.

[0048] The support mechanism 2 is symmetrically provided with cylinder clamping mechanisms 3 that support and clamp the ends of the crossbeam on both sides;

[0049] Telescopic cylinders 6 are symmetrically installed at both ends of the base 1. A slide table 5 is installed at the output end of each telescopic cylinder 6. The slide table 5 slides along the length of the base 1. A carrier plate 7 is slidably installed on the top of each slide table 5 along the length.

[0050] The top of each carrier plate 7 is vertically fixed with a vertical plate 9, and the side of each vertical plate 9 near the support mechanism 2 is vertically provided with a clamping plate 10.

[0051] A horizontal bar 14 is slidably mounted on the top of each vertical plate 9. One end of the horizontal bar 14 is connected to the clamping plate 10. A second spring 15 is provided between the clamping plate 10 and the vertical plate 9. The second spring 15 is sleeved on the outside of the horizontal bar 14.

[0052] The end of the crossbar 14 away from the clamping plate 10 passes through the vertical plate 9 and is fixed with a limit block 16. An L-shaped mounting plate 17 is fixed on the top of the side of the vertical plate 9 away from the clamping plate 10. A mechanical valve 18 is installed on the top of the L-shaped mounting plate 17 directly opposite the limit block 16. The mechanical valves 18 at both ends of the base 1 are electrically connected to two sets of cylinder clamping mechanisms 3 respectively.

[0053] The top of the slide table 5 is equipped with a position adjustment mechanism 8, which is used to adjust the spacing between the two sets of clamping plates 10 according to the length of the installed crossbeam.

[0054] A prompting mechanism is provided between the outer side of the clamping plate 10 and the vertical plate 9 to provide a prompt when the crossbeam is clamped too long.

[0055] Overall working principle: Before clamping the bottom beam of the cargo box floor assembly, the distance between the two sets of carrier plates 7 is adjusted by the position adjustment mechanism 8 at the top of the slide table 5 according to the length specification of the target beam. This causes the vertical plate 9 and clamping plate 10 at the top of the carrier plate 7 to move, so that the initial distance between the two sets of clamping plates 10 is strictly controlled within the range of being greater than the length of the target beam but less than the length of a larger specification beam, laying the foundation for subsequent physical blocking of extra-long beams.

[0056] When clamping begins, the crossbeam is placed on the support mechanism 2 at the top center of the base 1 and the cylinder clamping mechanism 3 at the end. At this time, the cylinder clamping mechanism 3 is in the extended state, providing support for the bottom of the crossbeam. Then, the telescopic cylinders 6 at both ends of the base 1 are activated. The output end of the telescopic cylinder 6 pushes the slide table 5 to slide along the length of the base 1 towards one side of the crossbeam. The slide table 5 drives the carrier plate 7, the vertical plate 9 and the clamping plate 10 to move towards the end of the crossbeam simultaneously.

[0057] If an extra-long crossbeam is installed, since the spacing of the clamping plates 10 has been preset to be less than the length of the extra-long crossbeam, the extra-long crossbeam will be physically blocked by the two sets of clamping plates 10 and cannot be placed smoothly on the support mechanism 2. At the same time, the weight of the crossbeam itself will squeeze the clamping plates 10, which will also trigger the prompting mechanism to remind the operator to install the extra-long crossbeam.

[0058] If a crossbeam shorter than the target specification is installed, when the telescopic cylinder 6 pushes the slide table 5 to move the clamping plate 10 to the preset distance, the clamping plate 10 cannot contact the end of the crossbeam. At this time, the clamping plate 10 will not be subjected to the squeezing force of the crossbeam. The limiting block 16 at the end of the top horizontal bar 14 of the vertical plate 9 away from the clamping plate 10 cannot contact the mechanical valve 18 at the top of the L-shaped mounting plate 17, and the mechanical valve 18 will not be triggered. Since the mechanical valve 18 is electrically connected to the cylinder clamping mechanism 3 on both sides of the support mechanism 2, when the mechanical valve 18 is not triggered, it will cut off the start signal of the cylinder clamping mechanism 3. The cylinder clamping mechanism 3 cannot press down and fix the end of the crossbeam, realizing "short specification linkage clamp breakage" and avoiding the misinstallation of short specification crossbeams.

[0059] If the target specification crossbeam is installed, when the telescopic cylinder 6 pushes the clamping plate 10 close to the end of the crossbeam, the end of the crossbeam will squeeze the clamping plate 10. The clamping plate 10 compresses the second spring 15 between the vertical plate 9 and the clamping plate 10, and drives the crossbar 14 to slide to the side of the vertical plate 9. The limiting block 16 at the end of the crossbar 14 moves along with it until the limiting block 16 contacts the mechanical valve 18 and triggers the mechanical valve 18. After the mechanical valve 18 is triggered, it sends a start signal to the cylinder clamping mechanism 3. The cylinder clamping mechanism 3 then presses down and fixes the end of the crossbeam, completing the correct clamping. The entire process uses a dual design of "physical blocking of long specifications and voice prompt interception, and linkage clamp breaking of short specifications" to accurately intercept incorrectly installed crossbeams. At the same time, the alarm function of the prompting mechanism greatly reduces the risk of incorrect installation.

[0060] Example 2

[0061] The solution in Example 1 will be further described below with reference to its specific working method.

[0062] In this embodiment, guide grooves 4 are provided at both ends of the top of the base 1. The guide grooves 4 are parallel to the length direction of the base 1, and the slide table 5 is slidably installed inside the guide grooves 4.

[0063] Local working principle: When the output end of the telescopic cylinder 6 pushes the slide table 5, the guide groove 4 constrains the movement trajectory of the slide table 5, preventing the slide table 5 from shifting laterally during the sliding process. This ensures that the slide table 5 drives the carrier plate 7, the vertical plate 9, and the clamping plate 10 to always move closer to or further away from the crossbeam along the length direction of the base 1, ensuring the alignment accuracy between the clamping plate 10 and the end of the crossbeam, and providing a stable moving foundation for subsequent error prevention judgment and clamping fixation.

[0064] In this embodiment, the support mechanism 2 includes a first bracket 201 and a first L-shaped pad 202. The first bracket 201 is fixed at the middle position of the top of the base 1. The first L-shaped pad 202 is symmetrically arranged on the top of the first bracket 201 and is supported on both sides of the bottom of the crossbeam.

[0065] Local working principle: When the crossbeam is placed on the support mechanism 2, the two sets of first L-shaped pads 202 support the two sides of the bottom of the crossbeam respectively. This not only avoids the crossbeam from directly contacting the first bracket 201 and causing damage, but also provides a preliminary limit on the lateral position of the crossbeam, preventing the crossbeam from shifting left or right before clamping, and ensuring that the crossbeam is within the range of action of the subsequent clamping plate 10 and the cylinder clamping mechanism 3.

[0066] In this embodiment, the cylinder clamping mechanism 3 includes a second bracket 301, a second L-shaped pad 302, a clamping cylinder 303, an extension rod 304, a pressure block 305, and a protective shell 306. The second bracket 301 is fixed at both ends of the top of the base 1. The second L-shaped pad 302 is symmetrically arranged on the top of the second bracket 301. The clamping cylinder 303 is installed on the outside of the second bracket 301. The protective shell 306 is provided on the outside of the clamping cylinder 303. The extension rod 304 is fixed on the swing arm of the clamping cylinder 303. The pressure block 305 that cooperates with the second L-shaped pad 302 is fixed at the bottom end of the extension rod 304. The clamping cylinder 303 is electrically connected to the mechanical valve 18.

[0067] Local working principle: When the end of the crossbeam is placed on the second L-shaped pad 302, the second L-shaped pad 302 provides support for the end of the crossbeam; when the mechanical valve 18 is triggered and sends a start signal, the clamping cylinder 303 on the outside of the second bracket 301 is activated, and its swing arm drives the extension rod 304 to rotate downward. The pressure block 305 at the bottom of the extension rod 304 moves down accordingly until the pressure block 305 cooperates with the second L-shaped pad 302 to press and fix the end of the crossbeam; the protective shell 306 on the outside of the clamping cylinder 303 can prevent external dust and debris from entering the inside of the clamping cylinder 303, thus extending the service life of the clamping cylinder 303.

[0068] In this embodiment, the position adjustment mechanism 8 includes a slide groove 801, a slider 802, a motor 803, and a lead screw 804. The slide groove 801 is formed on the top of the slide table 5. The slider 802 is slidably arranged inside the slide groove 801. The slider 802 is fixedly connected to the carrier plate 7. The motor 803 is installed at one end of the slide table 5. The lead screw 804 is installed at the output end of the motor 803. The lead screw 804 is threadedly connected to the slider 802.

[0069] Local working principle: When it is necessary to adjust the spacing of the clamping plates 10, the motor 803 at one end of the slide table 5 is started. The output end of the motor 803 drives the lead screw 804 to rotate. Since the lead screw 804 is threadedly connected to the slider 802, the rotational motion of the lead screw 804 is converted into the linear motion of the slider 802 along the slide groove 801. The slider 802 drives the carrier plate 7 to move synchronously, thereby adjusting the position of the top vertical plate 9 of the carrier plate 7 and the clamping plates 10. The slide groove 801 guides the movement of the slider 802, ensuring that the slider 802 moves smoothly and without deviation, so as to achieve precise adjustment of the spacing of the clamping plates 10 to adapt to target beams of different lengths.

[0070] In this embodiment, symmetrical reinforcing ribs are provided between the vertical plate 9 and the carrier plate 7, and the shape of the reinforcing ribs is triangular.

[0071] Local working principle: When the clamping plate 10 contacts the crossbeam and is subjected to compressive force, the vertical plate 9 will bear the lateral thrust. The reinforcing rib can disperse and transfer the force on the vertical plate 9 to the carrier plate 7, preventing the vertical plate 9 from tilting or bending due to excessive force, ensuring that the vertical plate 9 always remains vertical, and providing stable support for the coordinated operation of the clamping plate 10, the crossbeam 14, and the mechanical valve 18.

[0072] In this embodiment, a limiting groove 1001 is provided on the side of the clamping plate 10 near the crossbeam, and the top of the limiting groove 1001 is provided with a slanted guide edge.

[0073] Local working principle: When the clamping plate 10 approaches the crossbeam, the end of the crossbeam can be embedded in the limiting groove 1001, forming a dual positioning of the end of the crossbeam in both the horizontal and vertical directions, preventing the crossbeam from shifting forward or backward or up or down before clamping; the inclined guide edge set at the top of the limiting groove 1001 plays a "guiding alignment" role. If there is a slight deviation in the placement position of the crossbeam, the inclined guide edge can guide the end of the crossbeam into the limiting groove 1001 through the inclined surface, ensuring the precise alignment of the clamping plate 10 and the end of the crossbeam.

[0074] In this embodiment, the prompting mechanism includes a vertical groove 11, a sliding plate 12, a first spring 13, a fixing plate 19, a contact switch 20, and a buzzer 21. The vertical groove 11 is opened on the outside of the clamping plate 10. The sliding plate 12 is vertically slidably arranged inside the vertical groove 11. The end of the crossbar 14 is fixedly connected to the side of the sliding plate 12. The first spring 13 is provided between the sliding plate 12 and the inner top of the vertical groove 11. The fixing plate 19 is fixed at the middle position of the side of the vertical plate 9 near the clamping plate 10. The contact switch 20 is installed on the top of the fixing plate 19. The contact switch 20 is located directly below the clamping plate 10. The buzzer 21 is installed on the top of the base 1. The contact switch 20 is electrically connected to the buzzer 21.

[0075] Partial working principle: When the extra-long crossbeam is installed, the end of the crossbeam presses against the clamping plate 10. The clamping plate 10 drives the sliding plate 12 to slide downward along the vertical rod 1101, and the first spring 13 is compressed. When the sliding plate 12 moves down to contact the contact switch 20 at the top of the fixed plate 19 on the vertical plate 9, the contact switch 20 closes and sends an electrical signal to the buzzer 21. After the buzzer 21 is powered on, it emits an alarm sound to remind the operator that the crossbeam is too long. When the extra-long crossbeam is removed, the first spring 13 returns to its original shape, driving the sliding plate 12 and the clamping plate 10 to return to their original position. The sliding plate 12 separates from the contact switch 20, and the buzzer 21 stops alarming.

[0076] In this embodiment, vertical rods 1101 are fixed at the upper and lower ends of the vertical groove 11. The vertical rods 1101 are slidably connected to the slide plate 12, and the vertical rods 1101 pass through the inside of the first spring 13.

[0077] Local working principle: The vertical rod 1101 guides the sliding of the slide plate 12 and restricts the deformation direction of the first spring 13, preventing the first spring 13 from twisting during compression or reset, ensuring the normal elastic force output of the first spring 13 and the smooth sliding of the slide plate 12, and ensuring the reliable triggering of the prompting mechanism.

[0078] In this embodiment, a wheel frame 22 is installed at the middle position of the bottom of the base 1, a universal wheel 23 is installed on one side of the wheel frame 22, and a directional wheel 24 is installed on the other side of the wheel frame 22.

[0079] Local working principle: By utilizing the omnidirectional wheels 23 and directional wheels 24 at the bottom of the base 1, the operator can push the base 1 more easily, improving the flexibility and ease of movement of the equipment.

[0080] Example 3

[0081] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0082] Equipment preparation stage: Determine the target specifications of the beam to be clamped according to the production plan, check whether the casters 23 and directional casters 24 on the bottom wheel frame 22 of the base 1 are flexible, ensure that the first L-shaped pad 202 of the support mechanism 2 and the second L-shaped pad 302 of the cylinder clamping mechanism 3 are unworn, and ensure that the buzzer 21, contact switch 20 and mechanical valve 18 of the prompting mechanism are powered normally.

[0083] Spacing adjustment stage: Start the motor 803 of the position adjustment mechanism 8. The motor 803 drives the lead screw 804 to rotate. The lead screw 804 drives the slider 802 to slide along the slide groove 801. The slider 802 drives the carrier plate 7, the vertical plate 9 and the clamping plate 10 to move. After confirming by measuring tools that the spacing between the two sets of clamping plates 10 meets the requirement of "greater than the target crossbeam length and less than the length of the larger specification crossbeam", turn off the motor 803 to complete the preset spacing of the clamping plates 10.

[0084] Crossbeam placement stage: The operator hoists or moves the crossbeam to the top of the base 1, so that the bottom two sides of the crossbeam are supported on the first L-shaped pad 202 of the support mechanism 2, and the two ends of the crossbeam are placed on the second L-shaped pad 302 of the cylinder clamping mechanism 3, to ensure the initial alignment of the crossbeam.

[0085] Error prevention judgment and execution phase:

[0086] Judgment of excessively long crossbeams: After the spacing is adjusted, the spacing of the clamping plates 10 is fixed. If the crossbeam is too long, it cannot be placed between the clamping plates 10. This can be determined by visual inspection. At the same time, the crossbeam's gravity presses against the clamping plates 10, and the clamping plates 10 drive the slide plate 12 to move down along the vertical rod 1101, triggering the contact switch 20 and the buzzer 21 to sound an alarm. The operator should immediately stop the operation, remove the excessively long crossbeam, and check its specifications.

[0087] Short crossbeam judgment: If the crossbeam is shorter than the target specification, when the telescopic cylinder 6 pushes the clamping plate 10 to move to the preset distance, the clamping plate 10 does not contact the end of the crossbeam, the limit block 16 at the end of the crossbar 14 does not trigger the mechanical valve 18, the mechanical valve 18 cuts off the start signal of the cylinder clamping mechanism 3, the clamping cylinder 303 does not move, after the operator finds that there is no clamping action, check the crossbeam specification and replace the crossbeam with the target specification.

[0088] Qualified beam clamping: If the beam is of the target specification, the telescopic cylinder 6 pushes the clamping plate 10 to contact the end of the beam. The beam squeezes the clamping plate 10, causing the second spring 15 to compress. The crossbar 14 drives the limit block 16 to trigger the mechanical valve 18. The mechanical valve 18 sends a signal to the clamping cylinder 303. The clamping cylinder 303 swings its arm to drive the extension rod 304 and the pressure block 305 to move down. The pressure block 305 cooperates with the second L-shaped pad 302 to press and fix the end of the beam.

[0089] Subsequent operations and resetting: After the crossbeam is clamped and fixed, subsequent processes such as welding can be carried out; after the process is completed, the clamping cylinder 303 is closed, the pressure block 305 is reset, the telescopic cylinder 6 is started to drive the slide table 5 and the clamping plate 10 to reset, and the processed crossbeam is taken out; if it is necessary to replace the crossbeam with a different specification, the process of "spacing adjustment - crossbeam placement - error prevention judgment and execution" is repeated to achieve continuous production.

[0090] The above description is merely a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed in the present invention, based on the technical solution and concept of the present invention, shall fall within the scope of protection of the present invention.

Claims

1. A cylinder-mechanical valve cooperative anti-misalignment clamping structure, comprising a base (1), characterized in that: The base (1) has a support mechanism (2) for supporting the crossbeam at the middle position of the top. The support mechanism (2) is symmetrically provided with cylinder clamping mechanisms (3) that support and clamp the ends of the crossbeam on both sides. Telescopic cylinders (6) are symmetrically installed at both ends of the base (1). A slide (5) is installed at the output end of each telescopic cylinder (6). The slide (5) slides along the length of the base (1). A carrier plate (7) is slidably installed on the top of each slide (5) along the length. The top of each carrier plate (7) is vertically fixed with a vertical plate (9), and the side of the vertical plate (9) near the support mechanism (2) is vertically equipped with a clamping plate (10). A horizontal bar (14) is slidably mounted on the top of each vertical plate (9). One end of the horizontal bar (14) is connected to the clamping plate (10). A second spring (15) is provided between the clamping plate (10) and the vertical plate (9). The second spring (15) is sleeved on the outside of the horizontal bar (14). The end of the crossbar (14) away from the clamping plate (10) passes through the vertical plate (9) and is fixed with a limit block (16). An L-shaped mounting plate (17) is fixed on the top of the side of the vertical plate (9) away from the clamping plate (10). A mechanical valve (18) is installed at the position of the top of the L-shaped mounting plate (17) directly opposite the limit block (16). The mechanical valves (18) at both ends of the base (1) are electrically connected to the two sets of cylinder clamping mechanisms (3). The top of the slide (5) is provided with a position adjustment mechanism (8) for adjusting the spacing between the two sets of clamps (10) according to the length of the installed crossbeam; A prompting mechanism is provided between the outer side of the clamping plate (10) and the vertical plate (9) for prompting when the crossbeam is clamped for an excessive length; The cylinder clamping mechanism (3) includes a second bracket (301), a second L-shaped pad (302), a clamping cylinder (303), an extension rod (304), a pressure block (305), and a protective shell (306). The second bracket (301) is fixed at both ends of the top of the base (1). The second L-shaped pad (302) is symmetrically arranged on the top of the second bracket (301). The clamping cylinder (303) is installed on the outside of the second bracket (301). The protective shell (306) is provided on the outside of the clamping cylinder (303). The extension rod (304) is fixed on the swing arm of the clamping cylinder (303). The pressure block (305) that cooperates with the second L-shaped pad (302) is fixed at the bottom end of the extension rod (304). The clamping cylinder (303) is electrically connected to the mechanical valve (18). The prompting mechanism includes a vertical groove (11), a sliding plate (12), a first spring (13), a fixed plate (19), a contact switch (20), and a buzzer (21). The vertical groove (11) is opened on the outside of the clamping plate (10). The sliding plate (12) is vertically slidably installed inside the vertical groove (11). The end of the crossbar (14) is fixedly connected to the side of the sliding plate (12). The first spring (13) is provided between the sliding plate (12) and the inner top of the vertical groove (11). The fixed plate (19) is fixed at the middle position of the side of the vertical plate (9) near the clamping plate (10). The contact switch (20) is installed on the top of the fixed plate (19). The contact switch (20) is located directly below the clamping plate (10). The buzzer (21) is installed on the top of the base (1). The contact switch (20) is electrically connected to the buzzer (21).

2. The cylinder-mechanical valve cooperative anti-misalignment clamping structure according to claim 1, characterized in that: The base (1) has guide grooves (4) at both ends of the top. The guide grooves (4) are parallel to the length direction of the base (1). The slide (5) is installed and slidably disposed inside the guide grooves (4).

3. The cylinder-mechanical valve cooperative anti-misalignment clamping structure according to claim 1, characterized in that: The support mechanism (2) includes a first bracket (201) and a first L-shaped pad (202). The first bracket (201) is fixed at the middle position of the top of the base (1). The first L-shaped pad (202) is symmetrically arranged on the top of the first bracket (201). The first L-shaped pad (202) is supported on both sides of the bottom of the crossbeam.

4. The cylinder-mechanical valve cooperative anti-misalignment clamping structure according to claim 1, characterized in that: The position adjustment mechanism (8) includes a slide (801), a slider (802), a motor (803), and a lead screw (804). The slide (801) is located on the top of the slide table (5). The slider (802) is slidably arranged inside the slide (801). The slider (802) is fixedly connected to the carrier plate (7). The motor (803) is installed at one end of the slide table (5). The lead screw (804) is installed at the output end of the motor (803). The lead screw (804) is threadedly connected to the slider (802).

5. The cylinder-mechanical valve cooperative anti-misalignment clamping structure according to claim 1, characterized in that: The vertical plate (9) and the carrier plate (7) are symmetrically provided with reinforcing ribs, and the shape of the reinforcing ribs is triangular.

6. The cylinder-mechanical valve cooperative anti-misalignment clamping structure according to claim 1, characterized in that: Each clamp (10) has a limiting groove (1001) on the side near the crossbeam, and the top of the limiting groove (1001) is provided with a slanted guide edge.

7. The cylinder-mechanical valve cooperative anti-misalignment clamping structure according to claim 6, characterized in that: Vertical rods (1101) are fixed at the upper and lower ends of the vertical groove (11). The vertical rods (1101) are slidably connected to the slide plate (12), and the vertical rods (1101) pass through the inside of the first spring (13).

8. The cylinder-mechanical valve cooperative anti-misalignment clamping structure according to claim 1, characterized in that: A wheel frame (22) is installed at the middle position of the bottom of the base (1). A caster wheel (23) is installed on one side of the wheel frame (22), and a directional wheel (24) is installed on the other side of the wheel frame (22).

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