A block stacking fixture

Abstract

This application relates to a block palletizing fixture, belonging to the field of block palletizing technology. It includes a frame, a main clamping device and an auxiliary clamping device. The main clamping device and the auxiliary clamping device are both installed on the frame through a lifting mechanism, and the main clamping device and the auxiliary clamping device are rotatably connected to the frame. The main clamping device includes at least a pair of main clamping feet and a main clamping drive mechanism for driving the two main clamping feet to move relative to or in opposite directions. The auxiliary clamping device includes at least a pair of auxiliary clamping feet and an auxiliary clamping drive mechanism for driving the two auxiliary clamping feet to move relative to or in opposite directions. This application has the effect of being able to complete the handling of blocks without pallet operation, with convenient and fast operation.

Description

Technical Field

[0001] This application relates to the field of block stacking technology, and particularly to a block stacking fixture. Background Art

[0002] Concrete is generally used as a basic component in construction projects or bridge projects, etc. Concrete blocks are generally formed by first pouring a large concrete block and then using cutting equipment to obtain the required size. After the concrete blocks are cut and cured, the pallet stacking and block stacking are processed.

[0003] In the related art, block stacking generally involves placing the green bricks and pallets on a bracket, and then a forklift lifts the pallet carrying the blocks and transports the blocks onto a vehicle.

[0004] Regarding the above-mentioned related art, the inventor believes that this block handling method must rely on a pallet, and one pallet is required for each handling of the blocks, which will waste a lot of pallets and increase additional costs for the manufacturer. Summary of the Invention

[0005] In order to improve the problem of increased costs and wasted resources caused by relying on a pallet for each handling of the blocks, this application provides a block stacking fixture.

[0006] A block stacking fixture provided by this application adopts the following technical solutions:

[0007] A block stacking fixture includes a frame, a main clamping device, and an auxiliary clamping device. The main clamping device and the auxiliary clamping device are both installed on the frame through a lifting mechanism, and the main clamping device and the auxiliary clamping device are rotatably connected to the frame;

[0008] The main clamping device includes at least a pair of main clamping feet and a main clamping driving mechanism for driving the two main clamping feet to move relatively or in opposite directions;

[0009] The auxiliary clamping device includes at least a pair of auxiliary clamping feet and an auxiliary clamping driving mechanism for driving the two auxiliary clamping feet to move relatively or in opposite directions.

[0010] By adopting the above technical solutions, when stacking the blocks, first, the main clamping driving mechanism is used to drive the main clamping feet to clamp the blocks and stack the blocks into two layers. Then, the lower layer of the blocks is clamped by the main clamping feet, and the upper layer of the blocks is clamped by the auxiliary clamping feet. After being placed in a specific position, the lifting mechanism drives the main clamping feet and the auxiliary clamping feet to descend. The main clamping feet release the blocks, and the auxiliary clamping feet clamp the blocks. Subsequently, the blocks are driven to rise, and two forklift notches will be formed in the stacked blocks. Then, the first layer of the blocks is clamped by the main clamping feet and rotated by ninety degrees. Finally, blocks are continuously stacked onto the blocks, and the block stacking is completed. Finally, the blocks can be transported by a forklift without pallet operation, and the handling of the blocks can be completed.

[0011] Preferably, the main clamping driving mechanism includes a main clamping driving member and a main clamping guiding track. The main clamping driving member is fixed to the machine frame and is used to drive the two main clamping feet to move relative to each other or in opposite directions. The main clamping guiding track is fixed to the machine frame. A main clamping guiding rod is fixed to each main clamping foot, and the main clamping guiding rod is slidably inserted into the main clamping guiding track.

[0012] By adopting the above technical solution, the main clamping driving member drives the main clamping feet to move relative to each other along the main clamping guiding track to clamp the building block. The main clamping guiding rod slides along the main clamping guiding track, which can limit the movement track of the main clamping feet. When the building block is clamped by the main clamping feet, the contact between the main clamping feet and the building block is not likely to be skewed. Therefore, when the building block is clamped, it can not only be clamped more firmly, but also the building block is not likely to be damaged during the clamping process.

[0013] Preferably, the driving mechanism further includes a main clamping synchronous movement assembly. The main clamping synchronous movement assembly includes a first gear, a second gear, a first driving rod, a second driving rod, a first follower rod and a second follower rod. An installation rod is fixed to each main clamping foot, and one end of each main clamping driving member away from the machine frame is connected to the installation rod;

[0014] The first gear and the second gear are meshed with each other and are rotatably arranged on the machine frame;

[0015] One ends of the first driving rod and the second driving rod are hinged to two sides of the radial direction of the first gear. The end of the first driving rod away from the first gear is hinged to the installation rod, and the end of the second driving rod away from the first gear is hinged to the other installation rod;

[0016] One ends of the first follower rod and the second follower rod are hinged to two sides of the radial direction of the second gear. The end of the first follower rod away from the second gear is hinged to the installation rod, and the end of the second follower rod away from the second gear is hinged to the other installation rod.

[0017] By adopting the above technical solution, the main clamping driving member drives the installation rod to move to drive the main clamping feet to move relative to each other or in opposite directions. When the installation rod moves, the first driving rod and the first follower rod connected to the installation rod will move accordingly. That is, when the two installation rods move in opposite directions, the first driving rod will drive the first gear to rotate, so that the first driving rod and the second driving rod can rotate in opposite directions. At the same time, the second gear is driven by the first gear, and the first follower rod and the second follower rod will move relative to each other accordingly, so that the two installation rods can move synchronously relative to each other, enabling the two main clamping feet to apply force to the building block simultaneously to clamp the building block, which can not only be clamped more firmly, but also the building block is not likely to be damaged during the clamping process.

[0018] Preferably, there are two pairs of the auxiliary clamping feet, and an auxiliary clamping driving mechanism is arranged between every two of the auxiliary clamping feet in each pair. Each auxiliary clamping driving mechanism includes an auxiliary clamping driving member and an auxiliary clamping guiding track. One end of the auxiliary clamping driving member is connected to an auxiliary clamping foot, and the other end of the auxiliary clamping driving member is connected to the other auxiliary clamping foot;

[0019] The auxiliary clamping guiding track is connected to the machine frame. An auxiliary clamping guiding rod is fixed on each of the auxiliary clamping feet, and the auxiliary clamping guiding rod is slidably connected to the auxiliary clamping guiding track;

[0020] An auxiliary clamping synchronous motion assembly is arranged between the two auxiliary clamping guiding rods and the auxiliary clamping guiding track.

[0021] By adopting the above technical solution, when clamping the building blocks on the second layer, first, the auxiliary clamping feet are driven by the auxiliary clamping driving member to clamp the building blocks. When the auxiliary clamping driving member drives the auxiliary clamping feet to move, the auxiliary clamping guiding rods will move along the auxiliary clamping guiding track, and at the same time, the auxiliary clamping synchronous motion assembly is driven to control the synchronous motion of the two auxiliary clamping guiding rods, so that the building blocks receive the same force from the auxiliary clamping feet, not only can the clamping be more firm, but also the building blocks are not easily damaged during the clamping process.

[0022] Preferably, the auxiliary clamping synchronous motion assembly includes a connecting rod, a first driving rod and a second driving rod. The connecting rod is rotatably arranged on the auxiliary clamping guiding track. One end of the first driving rod is hinged to one end of the connecting rod, the other end of the first driving rod is hinged to the auxiliary clamping guiding rod, one end of the second driving rod is hinged to the end of the connecting rod far from the first driving rod, and the other end of the second driving rod is hinged to the other auxiliary clamping guiding rod;

[0023] The two pairs of auxiliary clamping feet are connected by the auxiliary clamping synchronous motion assembly.

[0024] By adopting the above technical solution, when the auxiliary clamping driving member drives the auxiliary clamping guiding rod to move, the auxiliary clamping guiding rod will push the first driving rod to move. When the first driving rod moves, it can drive the connecting rod to rotate. When the connecting rod rotates, it can push the second driving rod to move, so that the two auxiliary clamping guiding rods can be synchronously pushed to move by the first driving rod and the second driving rod to synchronously clamp the building blocks.

[0025] Preferably, centering detection devices are arranged in pairs on the machine frame. Each centering detection device includes a centering detection mechanism and a centering adjustment mechanism;

[0026] The centering detection mechanism includes a centering detection frame, a centering detection rod and a centering driving member. The centering detection frame is slidably arranged on the machine frame, the centering detection rod is slidably arranged on the centering detection frame, and the centering driving member is fixed on the centering detection frame for driving the centering detection rod to move;

[0027] The centering adjustment mechanism is installed between the centering detection rod and the frame, and is used to drive the main clamping device and the auxiliary clamping device to move. Every two of the centering detection devices are symmetrically arranged along the center line between them.

[0028] By adopting the above technical solution, before clamping the building block, first, the centering detection rod is driven by the centering driving member to move towards the building block. The centering detection rod on the side close to the building block will first touch the building block, and the building block will drive the centering detection rod to move away from the building block. Then, the centering adjustment mechanism can move the main clamping device and the auxiliary clamping device on the frame, so that the main clamping device and the auxiliary clamping device can center the building block and clamp the building block synchronously.

[0029] Preferably, each centering adjustment mechanism includes a limit sleeve, a mounting bracket, an adjustment spring, a limit plate and an adjustment rod;

[0030] The limit sleeve is slidably sleeved on the frame and is arranged close to the main clamping foot. The mounting bracket is arranged at one end of the limit sleeve away from the centering detection frame. The adjustment spring is sleeved on the limit sleeve and is located on the side of the mounting bracket facing the centering detection frame. The limit plate is slidably arranged on the mounting bracket and is located on the side of the limit sleeve away from the mounting bracket for limiting the adjustment spring. One end of the adjustment rod is hinged to the limit plate, and the other end of the adjustment rod is hinged to the centering detection rod.

[0031] By adopting the above technical solution, when the building block drives the centering detection rod to move away from the building block, the adjustment rod can be pushed to move, so that the connection between the adjustment plate and the adjustment spring is disengaged. Subsequently, the adjustment spring will move the main clamping device and the auxiliary clamping device along the length direction of the frame through its own resilience, so that the building block is located in the middle position between the main clamping device and the auxiliary clamping device.

[0032] Preferably, a centering detection block is slidably arranged on each centering detection rod. An infrared distance measuring instrument is arranged at one end of the centering detection block facing the building block. The infrared distance measuring instrument is electrically connected to the centering driving member. One end of the centering detection block away from the infrared distance measuring instrument is connected to the centering detection rod through a return spring. The end of the adjustment rod away from the limit plate is hinged to the centering detection block.

[0033] By adopting the above technical solution, when centering the position of the building block, first, the distance between the centering detection block and the building block is measured by the infrared distance measuring instrument, and then the centering detection block on the side with a shorter distance is driven by the centering driving member. When the limit plate is disengaged from the adjustment spring, the adjustment spring can drive the main clamping device and the auxiliary clamping device to move along the length direction of the frame through its own resilience, so as to adjust the positions of the main clamping device and the auxiliary clamping device.

[0034] In summary, the present application includes at least one of the following beneficial technical effects:

[0035] By providing the main clamping device and the auxiliary clamping device, the effect of palletizing the building blocks can be achieved, facilitating handling.

[0036] By providing the main clamp synchronous motion assembly and the auxiliary clamp synchronous motion assembly, the effect that the building blocks receive the same clamping force can be achieved. Not only can the clamping be more firm, but also the building blocks are not easily damaged during the clamping process.

[0037] By providing the centering detection device, the effect of whether the building blocks are in a centered state before being clamped can be achieved, facilitating the clamping of the main clamping feet and the auxiliary clamping feet. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the overall structure of the building block palletizing fixture in Embodiment 1 of the present application;

[0039] Figure 2 is a schematic diagram of the positional relationship among the lifting mechanism, the rotating mechanism, the main clamping device, and the auxiliary clamping device in the building block palletizing fixture in Embodiment 1 of the present application;

[0040] Figure 3 is a schematic diagram of the structure of building block palletizing;

[0041] Figure 4 is a schematic diagram of the structure of the main clamping device in Embodiment 1 of the present application;

[0042] Figure 5 is Figure 4 an enlarged schematic diagram of part A therein;

[0043] Figure 6 is a schematic diagram of the structure of the auxiliary clamping device in Embodiment 1 of the present application;

[0044] Figure 7 is a schematic diagram of the structure of the centering detection device in Embodiment 2 of the present application;

[0045] Figure 8 is a schematic diagram of the positional relationship between the centering adjustment mechanism and the centering detection mechanism in Embodiment 2 of the present application.

[0046] Description of reference numerals: 1, frame; 2, main clamping device; 21, main clamping feet; 22, main clamping drive mechanism; 221, main clamping drive member; 222, main clamping guide track; 223, main clamping guide rod; 224, main clamping synchronous motion assembly; 2241, first gear; 2242, second gear; 2243, first driving rod; 2244, second driving rod; 2245, first follower rod; 2246, second follower rod; 2247, mounting rod; 2248, first driving plate; 2249, second driving plate; 225, main clamping guide wheel; 3, auxiliary clamping device; 31, auxiliary clamping feet; 32, auxiliary clamping drive mechanism; 321, auxiliary clamping drive member; 322, auxiliary clamping guide track; 323, auxiliary clamping guide rod; 324, auxiliary clamping synchronous motion assembly; 3241, connecting rod; 3242, first driving rod; 3243, second driving rod; 4, lifting mechanism; 41, support frame; 42, lifting cylinder; 43, lifting guide wheel; 5, centering detection device; 51, centering detection mechanism; 511, centering detection frame; 512, centering detection rod; 513, centering drive member; 514, limiting block; 515, operation panel; 516, operation rod; 52, centering adjustment mechanism; 521, limiting sleeve; 522, mounting frame; 523, adjusting spring; 524, limiting plate; 525, adjusting rod; 526, centering detection block; 527, infrared rangefinder; 528, reset spring; 6, rotating mechanism; 61, mounting plate; 62, worm gear; 63, worm; 7, building block. Detailed implementation mode

[0047] The following further elaborates on this application Figure 1-8 in conjunction with the attached drawings.

[0048] The embodiment of this application discloses a building block palletizing fixture.

[0049] Embodiment 1:

[0050] Referring to Figure 1 and Figure 2 , a building block palletizing fixture includes a frame 1, a main clamping device 2 and an auxiliary clamping device 3. A lifting mechanism 4 is installed between the main clamping device 2 and the auxiliary clamping device 3, enabling the main clamping device 2 and the auxiliary clamping device 3 to be lifted through the lifting mechanism 4. At the same time, the main clamping device 2 and the auxiliary clamping device 3 can also be rotated through the rotating mechanism 6, making it more flexible when the main clamping device 2 and the auxiliary clamping device 3 clamp the building block 7.

[0051] Referring to Figure 3, when palletizing the blocks 7, first, the main clamping device 2 clamps the first layer of the block 7, the auxiliary clamping device 3 clamps the second layer of the block 7, and the lifting mechanism 4 drives the main clamping device 2 and the auxiliary clamping device 3 to rise, and places the block 7 at a specific position. At this time, the main clamping device 2 releases the block 7, and the auxiliary clamping device 3 continues to clamp the block 7 and then rises. A forklift notch will be formed in the block 7. Then, the main clamping device 2 continues to clamp the second layer of the block 7, rotates 90 degrees through the rotating mechanism 6, and places it on the first layer of the block 7. Then, the main clamping of the block 7 is reversed 90 degrees, and the main clamping device 2 continuously clamps and transports the block 7, and the palletizing of the block 7 can be completed. Finally, it is transported by a forklift without pallet operation, and the transportation is convenient and fast.

[0052] Refer to Figure 2 , the lifting mechanism 4 includes a support frame 41 and a lifting cylinder 42. The main clamping device 2 and the auxiliary clamping device 3 are both installed on the frame 1 through the rotating mechanism 6. One end of the lifting cylinder 42 is hinged to the support frame 41, and the other end of the lifting cylinder 42 is hinged to the frame 1. A number of lifting guide wheels 43 are arranged on both sides in the width direction of the support frame 41, and the number of lifting guide wheels 43 is fixedly connected to the frame 1.

[0053] The rotating mechanism 6 includes a mounting plate 61, a worm gear 62 and a worm 63. The main clamping device 2 and the auxiliary clamping device 3 are both installed on the mounting plate 61. The worm gear 62 is fixedly arranged on the mounting plate 61, and the screw is rotatably arranged on the mounting plate 61 and the worm gear 62 and the worm 63 are meshed with each other. The worm 63 is connected to the output shaft of the motor. By rotating the motor, the worm 63 can be driven to rotate, thereby driving the worm gear 62 to rotate. When the worm gear 62 rotates, it drives the mounting plate 61 to rotate, so that the main clamping device 2 and the auxiliary clamping device 3 fixed on the mounting plate 61 can rotate synchronously with the mounting plate 61.

[0054] By driving the support frame 41 to lift through the lifting cylinder 42, the lifting of the main clamping device 2 and the auxiliary clamping device 3 can be realized. When the main clamping device 2 and the auxiliary clamping device 3 need to rotate, the worm gear 62 is driven to rotate by the worm 63, and the rotation of the main clamping device 2 and the auxiliary clamping device 3 can be realized, so as to facilitate the palletizing of the block 7 by the main clamping device 2 and the auxiliary clamping device 3.

[0055] Refer to Figure 2 and Figure 4 , the main clamping device 2 includes at least a pair of main clamping feet 21 and a main clamping driving mechanism 22. In this embodiment, the main clamping feet 21 are set as a pair, and each main clamping foot 21 is arranged in a long strip shape, so that more blocks 7 can be clamped at the same time. The main clamping driving mechanism 22 can drive the two main clamping feet 21 to move relatively or in the opposite direction at the same time.

[0056] Refer to Figure 4 and Figure 5, the main clamp driving mechanism 22 includes main clamp guiding rails 222, main clamp driving members 221 and main clamp synchronous motion components 224. There are two main clamp guiding rails 222, which are arranged in parallel with each other, and each main clamp guiding rail 222 is fixed to the mounting plate 61. A main clamp guiding rod 223 is fixed to each main clamp foot 21. Each main clamp guiding rod 223 is arranged in an "L" shape. One end of the main clamp guiding rod 223 is slidably inserted into the main clamp guiding rail 222, and the other end of the main clamp guiding rod 223 is fixed to the main clamp foot 21. A main clamp guiding wheel 225 is arranged at the end of the main clamp guiding rod 223 inserted into the main clamp guiding rail 222. When the main clamp guiding rod 223 moves along the length direction of the main clamp guiding rail 222, the friction between the main clamp guiding rod 223 and the main clamp guiding rail 222 can be reduced through the main clamp guiding wheel 225. The main clamp driving member 221 is a cylinder or a hydraulic cylinder, or other components that can control the relative or opposite movement of the two main clamp feet 21 in each pair. In this embodiment, it is preferably a cylinder, and the two cylinders are electrically connected. An installation rod 2247 is fixed to the main clamp guiding rod 223. One end of the main clamp driving member 221 is fixed to the mounting plate 61, and the other end of the main clamp driving member 221 is fixed to the installation rod 2247. The main clamp synchronous motion component 224 is used to connect the two paired main clamp guiding rods 223, so that the main clamp feet 21 fixed to the main clamp guiding rods 223 can clamp the building block 7 simultaneously, which can not only clamp more firmly, but also the building block 7 is not easily damaged during the clamping process.

[0057] The main clamp synchronous motion component 224 includes a first gear 2241, a second gear 2242, a first driving rod 2243, a second driving rod 2244, a first follower rod 2245 and a second follower rod 2246. The first gear 2241 and the second gear 2242 are both rotatably arranged on the side of the mounting plate 61 away from the worm gear 62, and the first gear 2241 and the second gear 2242 are meshed with each other. A first driving plate 2248 is fixed to the gear shaft of the first gear 2241. One end of the first driving rod 2243 and one end of the second driving rod 2244 are respectively hinged to the two ends of the first driving plate 2248 in the length direction, and the other end of the first driving rod 2243 and the other end of the second driving rod 2244 extend in opposite directions and are respectively hinged to two corresponding installation rods 2247. A second driving plate 2249 is fixed to the gear shaft of the second gear 2242. One end of the first follower rod 2245 and one end of the second follower rod 2246 are respectively hinged to the two ends of the second driving plate 2249 in the length direction, and the other end of the first follower rod 2245 and the other end of the second follower rod 2246 extend in opposite directions and are respectively hinged to two corresponding installation rods 2247.

[0058] The two main clamp driving members 221 drive the mounting rod 2247 to move synchronously. When the mounting rod 2247 moves, it can drive the first driving rod 2243 and the first follower rod 2245 to move, thereby driving the second driving rod 2244 and the second follower rod 2246 to move synchronously. The two main clamp guide rods 223 arranged in pairs drive the main clamp feet 21 to move synchronously, so as to clamp or release the building block 7 synchronously. When the building block 7 is clamped, it is not easy to be damaged due to uneven force and displacement, and it is not easy to cause the inaccurate placement position of the building block 7 due to non-synchronization on both sides when the building block 7 is released. Therefore, the main clamp feet 21 arranged in pairs can clamp or release the building block 7 simultaneously, which can not only protect the building block 7 to reduce damage to the building block 7, but also make the stacking position of the building block 7 more accurate, facilitating the handling of the building block 7.

[0059] Refer to Figure 6 , the auxiliary clamping device 3 includes at least a pair of auxiliary clamp feet 31, an auxiliary clamp driving mechanism 32 and an auxiliary clamp synchronous movement assembly 324. In this embodiment, the auxiliary clamp feet 31 are arranged in two pairs, and the auxiliary clamp driving mechanism 32 can drive the two auxiliary clamp feet 31 in each pair to move relatively or oppositely at the same time. An auxiliary clamp guide rod 323 is fixed on each auxiliary clamp foot 31, and each auxiliary clamp guide rod 323 is arranged in an "L" shape. One end of each auxiliary clamp guide rod 323 away from the auxiliary clamp foot 31 is connected to the auxiliary clamp driving mechanism 32.

[0060] The auxiliary clamp driving mechanism 32 includes an auxiliary clamp guide track 322 and an auxiliary clamp driving member 321. The auxiliary clamp guide track 322 is arranged in two groups, and the two groups of auxiliary clamp guide tracks 322 are arranged perpendicular to each other and are slidably connected to each other. One group close to the auxiliary clamp guide track 322 is fixedly connected to the main clamp guide track 222, and the other group of auxiliary clamp guide tracks 322 is slidably connected to the auxiliary clamp guide rod 323. The auxiliary clamp driving member 321 is a cylinder or a hydraulic cylinder, and can be other components that can control the two auxiliary clamp feet 31 in each pair to move relatively or oppositely. In this embodiment, it is preferably a cylinder, and several auxiliary clamp driving members 321 are electrically connected to each other. One auxiliary clamp driving member 321 is used between the two auxiliary clamp feet 31 in each pair, and one auxiliary clamp driving member 321 is also arranged between the two auxiliary clamp feet 31 in each pair. One end of the auxiliary clamp driving member 321 between the two auxiliary clamp feet 31 in each pair is fixed on one of the auxiliary clamp guide rods 323, and the other end of the auxiliary clamp driving member 321 is fixed on the other auxiliary clamp guide rod 323. When the auxiliary clamp driving member 321 extends or contracts, it can push the two auxiliary clamp feet 31 arranged in pairs to move relatively or oppositely, and the two auxiliary clamp feet 31 can be controlled to move synchronously relatively or oppositely through the auxiliary clamp synchronous movement assembly 324. The two ends of the auxiliary clamp driving member 321 between adjacent pairs of auxiliary clamp feet 31 are respectively hinged to the two lower-layer auxiliary clamp guide tracks 322.

[0061] Each auxiliary clamp synchronous motion component 324 includes a connecting rod 3241, a first driving rod 3242 and a second driving rod 3243. Here, the auxiliary clamp synchronous motion component 324 at the two auxiliary clamp feet 31 arranged in pairs is taken as an example for elaboration. The center point in the length direction of the connecting rod 3241 is rotatably arranged on the center line in the length direction of the auxiliary clamp guiding track 322. The first driving rod 3242 and the second driving rod 3243 have the same structure, shape and size. The two ends in the length direction of the connecting rod 3241 are respectively hinged to the ends of the first driving rod 3242 and the second driving rod 3243. The end of the first driving rod 3242 far from the connecting rod 3241 is hinged to the auxiliary clamp guiding rod 323, and the end of the second driving rod 3243 far from the connecting rod 3241 is hinged to another auxiliary clamp guiding rod 323.

[0062] When the distance between adjacent and opposite auxiliary clamp feet 31 is fixed, if it is necessary to clamp or release the building block 7, the auxiliary clamp driving member 321 is extended or shortened, so as to drive the auxiliary clamp guiding rod 323 to move relatively or in the opposite direction, and then the connecting rod 3241, the first driving rod 3242 and the second driving rod 3243 can be synchronously driven to move, so that the two auxiliary clamp feet 31 arranged in pairs can move synchronously, realizing the clamping or releasing of the building block 7.

[0063] When it is necessary to adjust the distance between adjacent pairs of auxiliary clamp feet 31, first adjust the extension or shortening of the auxiliary clamp driving member 321 between adjacent pairs of auxiliary clamp guiding tracks 322, and then the distance between adjacent pairs of auxiliary clamp feet 31 can be adjusted.

[0064] The implementation principle of Embodiment 1 of the present application is as follows: when palletizing the building block 7, first place the building block 7 between the two main clamp feet 21 and the two auxiliary clamp feet 31, and then drive the main clamp driving member 221 and the auxiliary clamp driving member 321 simultaneously, so as to drive the main clamp feet 21 and the auxiliary clamp feet 31 to clamp the building block 7 at the same time. The height of the main clamp feet 21 is lower than that of the auxiliary clamp feet 31, so that the main clamp feet 21 clamp the lower layer of the building block 7, and the auxiliary clamp feet 31 clamp the upper layer of the building block 7. After being placed at a specific position, the main clamp feet 21 release the building block 7, and the auxiliary clamp feet 31 clamp the building block 7. Subsequently, drive the building block 7 to rise, and two forklift notches will be formed in the stacked building blocks 7. Then, start palletizing the third layer of the building block 7, rotate 90 degrees, and the building block 7 on the auxiliary clamp feet 31 can be placed on the third layer. The distance between adjacent two building blocks 7 can be controlled by the auxiliary clamp driving member 321 between adjacent two groups of auxiliary clamp guiding tracks 322. Then, the main clamp feet 21 clamp the building block 7 and continue to stack, and the palletizing of the building block can be completed. Finally, it can be transported by a forklift, and the operation of the pallet is not required, so as to complete the transportation of the building block 7.

[0065] Embodiment 2:

[0066] Refer to Figure 7, different from Embodiment 1, a block stacking fixture further includes a centering detection device 5. The centering detection device 5 can also be set in several pairs. Each centering detection device 5 includes a centering detection mechanism 51 and a centering adjustment mechanism 52. That is, the centering detection mechanism 51 is used to detect whether the block 7 is located between two main clamping feet 21 arranged in pairs. If the block 7 is offset, the positions of the main clamping device 2 and the auxiliary clamping device 3 can be adjusted through the centering adjustment mechanism 52, so that the block 7 is located between the two main clamping feet 21 arranged in pairs, facilitating the clamping and handling of the block 7.

[0067] Referring to Figure 7 and Figure 8 , the centering detection mechanisms 51 are arranged in pairs and symmetrically arranged along the center line in the length direction of the frame 1. The centering detection mechanism 51 includes a centering detection frame 511, a centering driving member 513, a centering detection rod 512, a centering detection block 526, and an infrared distance measuring instrument 527. The centering detection frame 511 is slidably mounted on the frame 1. The centering driving member 513 is fixed on the centering detection frame 511. The centering detection rod 512 is slidably mounted at one end of the centering detection frame 511 away from the frame 1, and the piston rod of the centering driving member 513 is fixed on the centering detection rod 512. The centering driving member 513 is a cylinder or a hydraulic cylinder, and can be other components capable of controlling the movement of the centering detection rod 512 relative to the centering detection frame 511. In this embodiment, it is preferably a cylinder. The centering detection block 526 is slidably arranged at the opposite ends of each pair of two centering detection rods 512. The infrared distance measuring instruments 527 are respectively fixed on the opposite side walls of the two centering detection blocks 526, and the infrared distance measuring instruments 527 are electrically connected to the centering driving member 513.

[0068] When detecting the position of the block 7, first, the distance between the centering detection block 526 and the block 7 is measured by the infrared distance measuring instrument 527. Then, the PLC controller analyzes the distances between the block 7 and the centering detection blocks 526 on both sides. The centering driving member 513 on the side with a shorter distance drives the centering detection block 526 to move. The centering adjustment mechanism 52 is connected to the centering detection block 526. When the centering detection block 526 touches the block 7 and generates a displacement, the centering adjustment mechanism 52 can be started to adjust the positions of the main clamping device 2 and the auxiliary clamping device 3.

[0069] Referring to Figure 8, the centering adjustment mechanism 52 includes a limit sleeve 521, a mounting bracket 522, a limit block 514, an adjustment spring 523, a limit plate 524 and an adjustment rod 525. The limit sleeve 521 is slidably sleeved on the opposite side of two paired centering detection frames 511. The mounting bracket 522 is arranged at one end of the limit sleeve 521 away from the centering detection frame 511. The limit block 514 is rotatably sleeved on the other end of the limit sleeve 521. A plurality of limit blocks 514 are provided, and the plurality of limit blocks 514 are circumferentially distributed along the limit sleeve 521. The adjustment spring 523 is sleeved on the limit sleeve 521 and is located between the mounting bracket 522 and the limit block 514. An operation disk 515 is provided on the limit sleeve 521 at the position of the mounting bracket 522. The operation disk 515 rotatably penetrates through the mounting bracket 522. The operation disk 515 is threadedly connected to the limit sleeve 521. An operation rod 516 is fixed on the operation disk 515. The adjustment spring 523 is located between the operation rod 516 and the limit block 514. Rotating the operation disk 515 in the direction of the limit block 514 can squeeze the adjustment spring 523. The limit plate 524 slidably penetrates through the mounting bracket 522, and the length direction of the limit plate 524 is perpendicular to the axis direction of the adjustment spring 523. The limit plate 524 is arranged close to the limit block 514 and is used to further limit the adjustment spring 523. One end of the adjustment rod 525 is hinged to the limit plate 524, and the other end of the adjustment rod 525 is hinged to the centering detection block 526. In order to facilitate the quick reset of the centering detection, a reset spring 528 is provided at one end of the centering detection block 526 away from the infrared rangefinder 527. The end of the reset spring 528 away from the centering detection block 526 is connected to the centering detection rod 512.

[0070] The implementation principle of Embodiment 2 of this application is as follows: When palletizing the building blocks 7, first, the infrared rangefinder 527 measures the distance between the centering detection block 526 and the building blocks 7. Then, the centering driving member 513 on the side with a shorter distance drives the centering detection block 526 to move, and connects the centering adjustment mechanism 52 with the centering detection block 526. When the centering detection block 526 touches the building blocks 7 and generates displacement, the centering detection block 526 pulls the limit plate 524 downward, and the limit plate 524 can be disconnected from the adjustment spring 523. The adjustment spring 523 pushes the support frame 41 through its own resilience. Then, rotate the operation disk 515 to reset the adjustment spring 523, and measure and adjust again until the distances between the building blocks 7 and the two main clamping feet 21 are the same. Finally, palletize the building blocks 7.

[0071] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A block stacking fixture, characterized in that: It includes a frame (1), a main clamping device (2) and an auxiliary clamping device (3). The main clamping device (2) and the auxiliary clamping device (3) are both installed on the frame (1) through a lifting mechanism (4), and the main clamping device (2) and the auxiliary clamping device (3) are rotatably connected to the frame (1); The main clamping device (2) includes at least a pair of main clamping feet (21) and a main clamping driving mechanism (22) for driving the two main clamping feet (21) to move relatively or in opposite directions; The auxiliary clamping device (3) includes at least a pair of auxiliary clamping feet (31) and an auxiliary clamping driving mechanism (32) for driving the two auxiliary clamping feet (31) to move relatively or in opposite directions; Centering detection devices (5) are arranged in pairs on the frame (1). Each centering detection device (5) includes a centering detection mechanism (51) and a centering adjustment mechanism (52); The centering detection mechanism (51) includes a centering detection frame (511), a centering detection rod (512) and a centering driving part (513). The centering detection frame (511) is slidably arranged on the frame (1), the centering detection rod (512) is slidably arranged on the centering detection frame (511), and the centering driving part (513) is fixed on the centering detection frame (511) for driving the centering detection rod (512) to move; The centering adjustment mechanism (52) is installed between the centering detection rod (512) and the frame (1) for driving the main clamping device (2) and the auxiliary clamping device (3) to move. Every two pairs of the centering detection devices (5) are symmetrically arranged along the center line between them; Each centering adjustment mechanism (52) includes a limit sleeve (521), a mounting frame (522), an adjustment spring (523), a limit plate (524) and an adjustment rod (525); The limit sleeve (521) is slidably sleeved on the frame (1) and is arranged close to the main clamping foot (21). The mounting frame (522) is arranged at one end of the limit sleeve (521) away from the centering detection frame (511). The adjustment spring (523) is sleeved on the limit sleeve (521) and is located on the side of the mounting frame (522) facing the centering detection frame (511). The limit plate (524) is slidably arranged on the mounting frame (522) and is located on the side of the limit sleeve (521) away from the mounting frame (522) for limiting the adjustment spring (523). One end of the adjustment rod (525) is hinged to the limit plate (524), and the other end of the adjustment rod (525) is hinged to the centering detection rod (512); A centering detection block (526) is slidably arranged on each centering detection rod (512). An infrared distance measuring instrument (527) is arranged at one end of the centering detection block (526) facing the building block (7). The infrared distance measuring instrument (527) is electrically connected to the centering driving part (513). One end of the centering detection block (526) away from the infrared distance measuring instrument (527) is connected to the centering detection rod (512) through a return spring (528). One end of the adjustment rod (525) away from the limit plate (524) is hinged to the centering detection block (526).

2. The block palletizing fixture according to claim 1, wherein: The main clamp driving mechanism (22) includes a main clamp driving member (221) and a main clamp guiding track (222). The main clamp driving member (221) is fixed to the frame (1) and is used to drive the two main clamp feet (21) to move relative to or in opposite directions. The main clamp guiding track (222) is fixed to the frame (1). A main clamp guiding rod (223) is fixed to each main clamp foot (21), and the main clamp guiding rod (223) is slidably inserted into the main clamp guiding track (222).

3. A block stacking fixture according to claim 2, characterized in that: The driving mechanism further includes a main clamp synchronous motion assembly (224). The main clamp synchronous motion assembly (224) includes a first gear (2241), a second gear (2242), a first driving rod (2243), a second driving rod (2244), a first follower rod (2245) and a second follower rod (2246). A mounting rod (2247) is fixed to each main clamp foot (21), and one end of each main clamp driving member (221) away from the frame (1) is connected to the mounting rod (2247). The first gear (2241) and the second gear (2242) are meshed with each other and are rotatably arranged on the frame (1). One ends of the first driving rod (2243) and the second driving rod (2244) are hinged to two sides in the radial direction of the first gear (2241). One end of the first driving rod (2243) away from the first gear (2241) is hinged to the mounting rod (2247), and one end of the second driving rod (2244) away from the first gear (2241) is hinged to the other mounting rod (2247). One ends of the first follower rod (2245) and the second follower rod (2246) are hinged to two sides in the radial direction of the second gear (2242). One end of the first follower rod (2245) away from the second gear (2242) is hinged to the mounting rod (2247), and one end of the second follower rod (2246) away from the second gear (2242) is hinged to the other mounting rod (2247).

4. A block stacking fixture according to claim 1, characterized in that: There are two pairs of auxiliary clamp feet (31). An auxiliary clamp driving mechanism (32) is arranged between every two auxiliary clamp feet (31) of each pair. Each auxiliary clamp driving mechanism (32) includes an auxiliary clamp driving member (321) and an auxiliary clamp guiding track (322). One end of the auxiliary clamp driving member (321) is connected to the auxiliary clamp foot (31), and the other end of the auxiliary clamp driving member (321) is connected to the other auxiliary clamp foot (31). The auxiliary clamp guiding track (322) is connected to the frame (1). An auxiliary clamp guiding rod (323) is fixed to each auxiliary clamp foot (31), and the auxiliary clamp guiding rod (323) is slidably connected to the auxiliary clamp guiding track (322). An auxiliary clamp synchronous motion assembly (324) is arranged between the two auxiliary clamp guiding rods (323) and the auxiliary clamp guiding track (322).

5. A block stacking fixture according to claim 4, characterized in that: The auxiliary clamp synchronous motion assembly (324) includes a connecting rod (3241), a first driving rod (3242) and a second driving rod (3243). The connecting rod (3241) is rotatably arranged on the auxiliary clamp guiding track (322). The end of the first driving rod (3242) is hinged to the end of the connecting rod (3241). The other end of the first driving rod (3242) is hinged to the auxiliary clamp guiding rod (323). The end of the second driving rod (3243) is hinged to the end of the connecting rod (3241) away from the first driving rod (3242). The other end of the second driving rod (3243) is hinged to another auxiliary clamp guiding rod (323). Two pairs of the auxiliary clamp feet (31) are connected by the auxiliary clamp synchronous motion assembly (324).

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