A structure capable of realizing accurate positioning and centering of heavy pallets

Abstract

The application discloses a structure capable of realizing accurate positioning and centering of heavy pallets, which comprises a rack, a universal ball fixing plate fixed on the top of the rack, universal balls inlaid on the universal ball fixing plate, a steel plate fixed above the universal ball fixing plate, and the top ends of the universal balls exposed from the steel plate; longitudinal clamping drive assemblies fixed on the front and rear ends of the bottom surface of the universal ball fixing plate, and horizontal clamping drive assemblies fixed on the left and right ends of the bottom surface of the universal ball fixing plate; the longitudinal clamping drive assemblies and the horizontal clamping drive assemblies pass through the sliding grooves arranged on the universal ball fixing plate and the steel plate upwards and then extend to the top surface of the steel plate. The universal balls are matched with the air cylinders to make the heavy pallets move stably and be accurately positioned, the whole set of equipment is treated by the anti-static galvanizing process, the power source of the air cylinders is gas, the number of electric equipment is reduced, and the probability of static electricity or electric leakage is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a structure for positioning a center, in particular, a structure for realizing accurate positioning of a center of a heavy pallet. BACKGROUND

[0002] There are many centering devices for light pallets, materials, boxes and other relatively small or light objects on the market, but few centering devices for heavy pallets, materials or boxes. There are few devices on the market that can stably center and prevent static electricity for heavy pallets weighing more than 1 ton. Generally, various dangerous goods such as missiles are transported on heavy pallets. It is very dangerous if a stable transportation and anti-static cannot be achieved during the transportation process, and unpredictable situations may occur during the bumps. SUMMARY

[0003] The purpose of the present application is to provide a structure for realizing accurate positioning of a center of a heavy pallet. To solve the technical problems existing in the prior art.

[0004] The technical solution of the present application: a structure for realizing accurate positioning of a center of a heavy pallet, comprising a rack, a universal ball fixing plate fixed on the top of the rack, universal balls embedded in the universal ball fixing plate, a steel plate fixed above the universal ball fixing plate, and the universal balls exposed at the top end of the steel plate; a longitudinal clamping drive assembly is fixed at the front and rear ends of the bottom surface of the universal ball fixing plate, and a transverse clamping drive assembly is fixed at the left and right ends of the bottom surface of the universal ball fixing plate; the longitudinal clamping drive assembly and the transverse clamping drive assembly pass through the sliding grooves provided on the universal ball fixing plate and the steel plate upwards and extend to the outside of the top surface of the steel plate; during use, the two longitudinal clamping drive assemblies can move longitudinally along the sliding grooves, and the two transverse clamping drive assemblies can move transversely along the sliding grooves; during positioning, the longitudinal clamping drive assembly realizes clamping, the transverse clamping drive assembly realizes clamping and maintains the clamping state, and then the longitudinal clamping drive assembly realizes clamping again.

[0005] In the aforementioned structure for realizing accurate positioning of a center of a heavy pallet, the longitudinal clamping drive assembly comprises a longitudinal clamping fixing plate fixed on the bottom surface of the universal ball fixing plate, a longitudinal cylinder fixed on the middle of the bottom surface of the longitudinal clamping fixing plate, a set of longitudinal linear sliding rails provided on both sides of the longitudinal cylinder, the longitudinal linear sliding rails being composed of a longitudinal sliding rail and a longitudinal sliding block, wherein the longitudinal sliding rail is fixed on the bottom surface of the longitudinal clamping fixing plate and arranged in the longitudinal direction of the rack, the longitudinal sliding block is slidably connected with the longitudinal sliding rail, the longitudinal sliding block is fixed on a longitudinal telescopic plate, the longitudinal telescopic plate is fixedly connected with the telescopic rod end of the longitudinal cylinder through a cylinder joint, a longitudinal clamping push rod is fixed on the top surface of the longitudinal telescopic plate, and the longitudinal clamping push rod extends to the outside of the top surface of the steel plate after passing through the sliding grooves provided on the universal ball fixing plate and the steel plate.

[0006] In the structure capable of achieving accurate positioning and centering of heavy pallets, one longitudinal clamping push rod is arranged on the outer side of each longitudinal sliding plate.

[0007] In the structure capable of achieving accurate positioning and centering of heavy pallets, the longitudinal telescopic plate is in the shape of an isosceles triangle, one longitudinal sliding plate is arranged at each of the two bottom corners of the bottom side of the longitudinal telescopic plate, and an opening is arranged in the middle of the longitudinal telescopic plate, and the telescopic rod end of the longitudinal cylinder is fixedly connected to the top corner of the longitudinal telescopic plate through the cylinder joint after the longitudinal cylinder passes through the opening.

[0008] In the structure capable of achieving accurate positioning and centering of heavy pallets, the transverse clamping drive assembly comprises a transverse clamping fixed plate fixed to the bottom surface of the universal ball fixed plate, a transverse cylinder is fixed to the middle of the bottom surface of the transverse clamping fixed plate, one set of transverse linear sliding rails is arranged on each side of the transverse cylinder, the transverse linear sliding rails are composed of a transverse sliding rail and a transverse sliding block, the transverse sliding rail is fixed to the bottom surface of the transverse clamping fixed plate and arranged in the transverse direction of the rack, the transverse sliding block is slidably connected to the transverse sliding rail, the transverse sliding block is fixed to the transverse telescopic plate, the transverse telescopic plate is further fixedly connected to the telescopic rod end of the transverse cylinder through the cylinder joint, and the top surface of the transverse telescopic plate is further fixed with a transverse clamping push rod, which extends to the outside of the top surface of the steel plate after passing through the sliding groove arranged on the universal ball fixed plate and the steel plate.

[0009] In the structure capable of achieving accurate positioning and centering of heavy pallets, one transverse clamping push rod is arranged on the outer side of each transverse sliding plate, and a transverse clamping push plate is connected between the top ends of the two transverse clamping push rods on the same side of the rack.

[0010] In the structure capable of achieving accurate positioning and centering of heavy pallets, the transverse telescopic plate is in the shape of an isosceles triangle, one transverse sliding plate is arranged at each of the two bottom corners of the bottom side of the transverse telescopic plate, and an opening is arranged in the middle of the transverse telescopic plate, and the telescopic rod end of the transverse cylinder is fixedly connected to the top corner of the transverse telescopic plate through the cylinder joint after the transverse cylinder passes through the opening.

[0011] In the structure capable of achieving accurate positioning and centering of heavy pallets, the steel plate is a patterned steel plate.

[0012] In the structure capable of achieving accurate positioning and centering of heavy pallets, a goods detection assembly and an electric control cabinet are further arranged on the rack, and a staircase is fixed to the rear side of the rack.

[0013] In the structure capable of achieving accurate positioning and centering of heavy pallets, the structure is all treated with an anti-static galvanized surface process.

[0014] The beneficial effects of the present application: compared with the prior art, the present application can meet the needs of smooth movement and accurate positioning of heavy pallets by increasing the cooperation of universal ball with air cylinder, the whole set of equipment adopts anti-static galvanized surface treatment, the power source of air cylinder is gas, which reduces the number of electrical equipment and the probability of static or electric leakage. The operation of air cylinder is relatively smooth and easy to control, whether it is fast operation or slow operation can be very easily adjusted, the principle and structure are relatively simple. There is no hard requirement for the operator, and the parts wear can also be replaced by himself. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the heavy pallet positioning and centering device of the present application;

[0016] Figure 2 is a top view of the heavy pallet positioning and centering device of the present application;

[0017] Figure 3 is a sectional view of the heavy pallet positioning and centering device of the present application;

[0018] Figure 4 is a longitudinal clamping drive assembly structure diagram of the present application;

[0019] Figure 5 is a transverse clamping drive assembly structure diagram of the present application.

[0020] Reference signs: 1-goods detection assembly, 2-electric control cabinet, 3-rack, 4-stair, 5-steel plate, 6-longitudinal clamping push rod, 7-transverse clamping push plate, 8-universal ball, 9-universal ball fixing plate, 10-longitudinal clamping drive assembly, 11-transverse clamping drive assembly, 12-longitudinal clamping fixing plate, 13-longitudinal linear slide rail, 14-longitudinal telescopic plate, 15-cylinder joint, 16-longitudinal cylinder, 17-longitudinal slide rail, 18-longitudinal slide block, 19-transverse clamping fixing plate, 20-transverse telescopic plate, 21-transverse cylinder, 22-transverse linear slide rail, 23-transverse slide rail, 24-transverse slide block, 25-transverse clamping push rod. DETAILED DESCRIPTION

[0021] The present application will be further described below in conjunction with the drawings and examples, but it is not as the basis for limiting the present application.

[0022] Embodiments of the present application: a structure that can realize accurate positioning and centering of heavy pallets, such as Figures 1-5As shown, it comprises a rack 3, a universal ball fixing plate 9 fixed on the top of the rack 3, universal balls 8 inlaid on the universal ball fixing plate 9, a steel plate 5 fixed above the universal ball fixing plate 9, and the top ends of the universal balls 8 exposed outside the steel plate 5; a longitudinal clamping driving assembly 10 fixed on the bottom surface of the universal ball fixing plate 9 at the front and rear ends, a horizontal clamping driving assembly 11 fixed on the bottom surface of the universal ball fixing plate 9 at the left and right ends, the longitudinal clamping driving assembly 10 and the horizontal clamping driving assembly 11 extending upwards through the sliding grooves provided on the universal ball fixing plate 9 and the steel plate 5 and then extending to the top surface of the steel plate 5 outside; during use, the two longitudinal clamping driving assemblies 10 can move longitudinally along the sliding grooves, and the two horizontal clamping driving assemblies 11 can move horizontally along the sliding grooves. During positioning, the longitudinal clamping driving assembly 10 realizes clamping and repositioning, then the horizontal clamping driving assembly 11 realizes clamping and keeps the clamping state, and then the longitudinal clamping driving assembly 10 realizes clamping again.

[0023] The longitudinal clamping driving assembly 10 comprises a longitudinal clamping fixing plate 12 fixed on the bottom surface of the universal ball fixing plate 9, a longitudinal cylinder 16 fixed on the middle of the bottom surface of the longitudinal clamping fixing plate 12, a set of longitudinal linear sliding rails 13 provided on both sides of the longitudinal cylinder 16, the longitudinal linear sliding rails 13 being composed of a longitudinal sliding rail 17 and a longitudinal sliding block 18, wherein the longitudinal sliding rail 17 is fixed on the bottom surface of the longitudinal clamping fixing plate 12 and arranged in the longitudinal direction of the rack 3, the longitudinal sliding block 18 is slidably connected with the longitudinal sliding rail 17, the longitudinal sliding block 18 is fixed on a longitudinal telescopic plate 14, the longitudinal telescopic plate 14 is fixedly connected with the telescopic rod end of the longitudinal cylinder 16 through a cylinder joint 15, and a longitudinal clamping push rod 6 is fixed on the top surface of the longitudinal telescopic plate 14 and extends to the top surface of the steel plate 5 outside through the sliding grooves provided on the universal ball fixing plate 9 and the steel plate 5.

[0024] One longitudinal clamping push rod 6 is arranged on the longitudinal telescopic plate 14 outside each longitudinal sliding block 18, so that two longitudinal clamping push rods 6 are arranged at the front end and the rear end of the rack 3, and the two longitudinal clamping push rods 6 act synchronously, which can better push the heavy pallet to move and prevent it from deviating during movement.

[0025] The longitudinal telescopic plate 14 is isosceles triangle structure, each of the two bottom corners of the bottom edge is provided with a longitudinal sliding block 18, the middle of the longitudinal telescopic plate 14 is provided with an opening, the telescopic rod end of the longitudinal cylinder 16 passes through the opening and is fixedly connected with the top corner of the longitudinal telescopic plate 14 through the cylinder joint 15. This structure makes each end point of the longitudinal telescopic plate 14 be connected and fixed, and ensures the stability of the structure of the longitudinal telescopic plate 14. The opening provided on the longitudinal telescopic plate 14 makes the longitudinal telescopic plate 14 be arranged next to the longitudinal clamping fixed plate 12 upward, so that the longitudinal clamping push rod 6 does not need to be particularly long to extend to the outside of the steel plate 5, the longitudinal clamping push rod 6 is relatively short, and it is also convenient for the longitudinal cylinder 16 to apply force to push the heavy tray.

[0026] The transverse clamping drive assembly 11 comprises a transverse clamping fixed plate 19 fixed on the bottom surface of the universal ball fixed plate 9, a transverse cylinder 21 fixed on the middle of the bottom surface of the transverse clamping fixed plate 19, a set of transverse linear sliding rails 22 arranged on both sides of the transverse cylinder 21, wherein the transverse linear sliding rails 22 are composed of a transverse sliding rail 23 and a transverse sliding block 24, the transverse sliding rail 23 is fixed on the bottom surface of the transverse clamping fixed plate 19 and arranged in the transverse direction of the rack 3, the transverse sliding block 24 is slidably connected with the transverse sliding rail 23, the transverse sliding block 24 is fixed on the transverse telescopic plate 20, the transverse telescopic plate 20 is also fixedly connected with the telescopic rod end of the transverse cylinder 21 through the cylinder joint 15, and the top surface of the transverse telescopic plate 20 is also fixed with a transverse clamping push rod 25. The transverse clamping push rod 25 extends to the outside of the top surface of the steel plate 5 after passing through the sliding groove arranged on the universal ball fixed plate 9 and the steel plate 5.

[0027] A transverse clamping push rod 25 is arranged on the transverse telescopic plate 20 outside each transverse sliding block 24, and a transverse clamping push plate 7 is connected between the top ends of the two transverse clamping push rods 25 on the same side of the rack 3. The transverse clamping push plate 7 abuts against the side surface of the heavy tray, so as to better push the heavy tray to move. And the heavy tray will not deviate during movement.

[0028] The transverse telescopic plate 20 is isosceles triangle structure, each of the two bottom corners of the bottom edge is provided with a transverse sliding block 24, the middle of the transverse telescopic plate 20 is provided with an opening, the telescopic rod end of the transverse cylinder 21 passes through the opening and is fixedly connected with the top corner of the transverse telescopic plate 20 through the cylinder joint 15. This structure makes each end point of the transverse telescopic plate 20 be connected and fixed, and ensures the stability of the structure of the transverse telescopic plate 20. The opening provided on the transverse telescopic plate 20 makes the transverse telescopic plate 20 be arranged next to the transverse clamping fixed plate 19 upward, so that the transverse clamping push rod 25 does not need to be particularly long to extend to the outside of the steel plate 5, the transverse clamping push rod 25 is relatively short, and it is also convenient for the transverse cylinder 21 to apply force to push the heavy tray to move.

[0029] The steel plate 5 is a patterned steel plate, has an anti-skid function, facilitates personnel to stand on the steel plate 5 to overhaul the equipment, and avoids that personnel easily slide.

[0030] The rack 3 is further provided with a goods detection assembly 1 and an electric control cabinet 2, the goods detection assembly 1 is used for detecting whether goods are placed on the steel plate 5, when it is detected that goods are placed, a control signal is given to the electric control cabinet 2, and the electric control cabinet 2 drives the longitudinal clamping driving assembly 10 and the transverse clamping driving assembly 11 to act. The rear side of the rack 3 is fixed with a staircase 4, facilitating work such as overhaul on the steel plate 5.

[0031] The structure of the present application is all treated by anti-static galvanizing process, meeting the demand of the device for anti-static.

[0032] The use method of the present application is as follows: before using the device, the device is first positioned. Because the device is not used independently, it needs to be used in cooperation with a mechanical hand and a stacking mechanism. After the common reference of the three devices is found, the operation mode of the device of the present application is as follows: first, the tray is taken out by the stacking mechanism and placed on the steel plate 5 of the heavy tray positioning and centering device, then the switch on the goods detection assembly 1 of the device detects that the goods have been placed on the steel plate 5, and then the electromagnetic valve in the electric control cabinet 2 controls the longitudinal cylinder 16 on the longitudinal clamping driving assembly 10 to intake, so that the longitudinal cylinder 16 realizes the clamping function. Specifically, the longitudinal cylinder 16 intakes, the push rod thereof pushes outwards, drives the longitudinal telescopic plate 14 to move linearly along the longitudinal sliding rail 17, pushes the tray through the longitudinal clamping push rod 6, realizes the centering of the tray in the longitudinal direction, and the electromagnetic valve controls the longitudinal cylinder 16 to exhaust, so that the longitudinal clamping push rod 6 resets. The electromagnetic valve controls the transverse cylinder 23 on the transverse clamping driving assembly 11 to intake again, so that the transverse cylinder 23 realizes the clamping function. Specifically, the transverse cylinder 21 intakes, the push rod thereof pushes outwards, drives the transverse telescopic plate 20 to move linearly along the transverse sliding rail 23, pushes the tray through the transverse clamping push plate 7, and realizes the centering of the tray in the transverse direction. After the transverse cylinder 21 always intakes, the longitudinal cylinder 16 also controls to intake, and the longitudinal clamping function is performed again. At this time, the tray can be accurately positioned on the set position.

[0033] When another tray needs to be replaced, the fork body of the stacking mechanism is first placed below the tray, the transverse cylinder 21 of the transverse clamping driving assembly 11 of the heavy tray positioning and centering device is first exhausted and reset, and the longitudinal cylinder 16 of the longitudinal clamping driving assembly 10 is also exhausted and reset. Because simultaneous resetting will simultaneously generate four-directional forces, the platform will appear slight shaking. After the above actions are completed, the stacking mechanism takes away the tray, and the above actions of placing the tray are repeated again to position.

[0034] The stable movement of the tray in the holding and clamping action relies on the support of the universal ball 8, the plane height of the universal ball 8 is higher than the plane of the steel plate 5, the support point of the tray is completely on the universal ball 8, which can effectively reduce the frictional resistance generated in the movement of the tray, like installing multiple rollers on the bottom of the tray, so that it can move stably no matter moving forward, backward, left or right.

Claims

1. A structure capable of achieving accurate positioning and centering of heavy pallets, characterized by: The application relates to a positioning device for a large-sized workpiece, which comprises an organic frame (3), a universal ball fixing plate (9) fixed on the top of the frame (3), universal balls (8) inlaid on the universal ball fixing plate (9), a steel plate (5) fixed above the universal ball fixing plate (9), and the top ends of the universal balls (8) exposed outside the steel plate (5); two longitudinal clamping driving assemblies (10) are fixed on the bottom surface of the universal ball fixing plate (9) at the front and rear ends, two horizontal clamping driving assemblies (11) are fixed on the bottom surface of the universal ball fixing plate (9) at the left and right ends, the longitudinal clamping driving assemblies (10) and the horizontal clamping driving assemblies (11) are arranged to pass through the sliding grooves arranged on the universal ball fixing plate (9) and the steel plate (5) and then extend to the top surface of the steel plate (5) outside; during use, the two longitudinal clamping driving assemblies (10) can move longitudinally along the sliding grooves, and the two horizontal clamping driving assemblies (11) can move horizontally along the sliding grooves; during positioning, the longitudinal clamping driving assemblies (10) are clamped and reset, then the horizontal clamping driving assemblies (11) are clamped and kept in the clamped state, and then the longitudinal clamping driving assemblies (10) are clamped again. The longitudinal clamping driving assembly (10) comprises a longitudinal clamping fixing plate (12) fixed on the bottom surface of the universal ball fixing plate (9), a longitudinal cylinder (16) fixed on the middle of the bottom surface of the longitudinal clamping fixing plate (12), a set of longitudinal linear sliding rails (13) arranged on the two sides of the longitudinal cylinder (16), wherein the longitudinal linear sliding rails (13) are composed of longitudinal sliding rails (17) and longitudinal sliding blocks (18), the longitudinal sliding rails (17) are fixed on the bottom surface of the longitudinal clamping fixing plate (12) and arranged in the longitudinal direction of the frame (3), the longitudinal sliding blocks (18) are slidably connected with the longitudinal sliding rails (17), the longitudinal sliding blocks (18) are fixed on a longitudinal telescopic plate (14), the longitudinal telescopic plate (14) is fixedly connected with the telescopic rod end of the longitudinal cylinder (16) through a cylinder joint (15), and a longitudinal clamping push rod (6) is fixed on the top surface of the longitudinal telescopic plate (14) and extends to the top surface of the steel plate (5) outside through the sliding groove arranged on the universal ball fixing plate (9) and the steel plate (5). The longitudinal telescopic plate (14) is in the structure of an isosceles trapezoid, one longitudinal sliding block (18) is arranged at each bottom corner of the bottom edge of the longitudinal telescopic plate (14), an opening is arranged in the middle of the longitudinal telescopic plate (14), and the telescopic rod end of the longitudinal cylinder (16) is fixedly connected with the top corner of the longitudinal telescopic plate (14) through the cylinder joint (15) after passing through the opening.

2. The structure capable of realizing accurate positioning and centering of a heavy pallet according to claim 1, characterized in that: One longitudinal clamping push rod (6) is arranged on the longitudinal telescopic plate (14) outside each longitudinal sliding block (18).

3. The structure capable of realizing accurate positioning and centering of heavy pallets according to claim 1, characterized in that: The transverse clamping driving assembly (11) comprises a transverse clamping fixing plate (19) fixed on the bottom surface of the universal ball fixing plate (9), a transverse cylinder (21) fixed on the middle of the bottom surface of the transverse clamping fixing plate (19), a set of transverse linear sliding rails (22) arranged on both sides of the transverse cylinder (21), wherein the transverse linear sliding rails (22) are composed of a transverse sliding rail (23) and a transverse sliding block (24), the transverse sliding rail (23) is fixed on the bottom surface of the transverse clamping fixing plate (19) and arranged in the transverse direction of the rack (3), the transverse sliding block (24) is slidably connected with the transverse sliding rail (23), the transverse sliding block (24) is fixed on the transverse telescopic plate (20), the transverse telescopic plate (20) is further fixedly connected with the telescopic rod end of the transverse cylinder (21) through a cylinder joint (15), and the top surface of the transverse telescopic plate (20) is further fixed with a transverse clamping push rod (25), the transverse clamping push rod (25) extends out of the top surface of the steel plate (5) after passing through the sliding groove arranged on the universal ball fixing plate (9) and the steel plate (5).

4. The structure capable of realizing accurate positioning and centering of heavy pallets according to claim 3, characterized in that: One transverse clamping push rod (25) is arranged on the transverse telescopic plate (20) outside each transverse sliding block (24), and the top ends of two transverse clamping push rods (25) arranged on the same side of the rack (3) are connected with a transverse clamping push plate (7).

5. The structure capable of realizing accurate positioning and centering of heavy pallets according to claim 3, characterized in that: The transverse telescopic plate (20) has an isosceles trapezoidal structure, one transverse sliding block (24) is arranged at each of the two bottom corners of the bottom edge of the transverse telescopic plate (20), and the transverse cylinder (21) is fixedly connected with the top corner of the transverse telescopic plate (20) through the cylinder joint (15) after passing through the opening arranged in the middle of the transverse telescopic plate (20).

6. The structure capable of achieving accurate positioning and centering of heavy pallets according to claim 1, characterized in that: The steel plate (5) is a patterned steel plate.

7. The structure capable of achieving accurate positioning and centering of heavy pallets according to claim 1, characterized in that: The rack (3) is further provided with a goods detection assembly (1) and an electric control cabinet (2), and the rear side of the rack (3) is fixed with a staircase (4).

8. The structure capable of achieving accurate positioning and centering of heavy pallets according to claim 1, characterized in that: The structures are all treated by an anti-static galvanizing process.

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