Stacking clamp

Abstract

The utility model belongs to the technical field of stacking clamps, and particularly relates to a stacking clamp. Comprising a frame, a bearing part, a clamping part, a traction device and a triggering device. A mounting seat of the bearing part is mounted on the frame, a limiting piece is hinged to the mounting seat, a bearing plate is mounted on the limiting piece, and the bearing plate inclines downwards relative to the base when the limiting piece is in contact with the mounting seat. A sliding groove is formed in the bottom of the frame, a through groove is formed in one end of the sliding groove, a limiting rod is installed in the sliding groove, the limiting rod is connected with the frame through an elastic element and connected with the installation base through a rack, installation grooves are further formed in the two ends, and springs in the grooves are connected with limiting blocks. A turntable of the trigger device is mounted on the frame, an ejector rod is mounted on the turntable, one end of the ejector rod is located in a through groove, one end of a telescopic traction piece is hinged to the turntable, the other end of the telescopic traction piece is connected with a bearing plate, and the telescopic traction piece is in the longest state when a limiting block is clamped into the through groove. The problem that part of stacking clamps are long in bearing plate recovery time is solved, and the working efficiency of part of stacking clamps is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of palletizing fixtures, and particularly relates to a palletizing fixture. Background Art

[0002] The palletizing robot is a product of the organic combination of machinery and computer programs. It provides higher production efficiency for modern production. Palletizing machines have quite extensive applications in the palletizing industry. The palletizing robot greatly saves labor and space. The palletizing robot operates flexibly, precisely, quickly, efficiently, and has high stability and high operation efficiency.

[0003] The palletizing fixture is a tool installed on the end effector of the robot, used to complete the handling of workpieces and products with different shapes, sizes, and states to achieve automatic palletizing. These fixtures can greatly reduce the heavy physical labor of workers. The existing palletizing fixtures are divided into load-bearing plate fixtures, jaw fixtures, vacuum suction cup fixtures, and electro-permanent magnetic fixtures. For example, in the patent with the existing application number CN118125145A, the load-bearing plate fixture has the problems of slow recovery of the load-bearing plate and long unloading time, which has a certain impact on the working efficiency of the palletizing robot. Therefore, it is necessary to improve the structure of the palletizing robot fixture. Summary of the Utility Model

[0004] In view of this, the purpose of the utility model is to provide a palletizing fixture to solve the problem of long time for some palletizing fixtures to recover the load-bearing plate and improve the working efficiency of some palletizing fixtures.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A palletizing fixture includes a frame, a load-bearing part, a clamping part, a traction device, and a triggering device. The traction device and the load-bearing part are slidably installed at the bottom of the frame, and the traction device is used to pull the movement of the load-bearing part. The load-bearing part includes a load-bearing plate, a limiting member, and a mounting seat. The mounting seat is slidably installed on the frame, the limiting member is hinged to the mounting seat, the load-bearing plate is fixedly installed on the limiting member, and when the limiting member contacts the mounting seat, the load-bearing plate inclines downward compared with the base. A chute is provided at the bottom of the frame, a through groove is provided at one end of the chute, a limiting rod is slidably installed in the chute, an elastic element is connected between one end of the limiting rod and the frame, a rack is connected between the limiting rod and the mounting seat, the traction device is in transmission connection with the rack, mounting grooves are opened at both ends of the limiting rod, limiting blocks are slidably installed in the mounting grooves, and springs are connected between the top ends of the limiting blocks and the mounting grooves. The triggering device includes a turntable, a push rod, and a telescopic traction member. The turntable is rotatably installed on the frame through a torsion spring, the push rod is installed on the turntable, and one end of the push rod is located in the through groove. One end of the telescopic traction member is hinged to the turntable and the other end is connected to the outermost load-bearing plate. When the limiting block is inserted into the through groove, the telescopic traction member is in the longest state and at the same time the load-bearing plate is in the downward inclined state.

[0007] On the basis of the above technical solution, the present utility model has also made the following improvements:

[0008] Furthermore, a fixed shaft is installed at the end of the bearing plate, a rubber roller is installed on the fixed shaft, and the end of the telescopic traction member is connected to the fixed shaft. Installing the rubber roller reduces the frictional resistance between the bearing plate and the packing box, thereby avoiding damage to the packing box when the bearing plate is quickly retracted.

[0009] Furthermore, the bearing plate is inclined downward by 2° to 5° relative to the base, so that after the load-bearing part contacts the goods below, the telescopic traction member quickly drives the turntable to rotate.

[0010] Furthermore, the clamping part includes a mounting plate, a pressing plate and a motor linear slide rail. The slide rail of the motor linear slide rail is installed on the frame, the mounting plate is fixed on the slide table of the motor linear slide rail, and the pressing plate is installed on the mounting plate, expanding the scope of use for goods of different specifications.

[0011] Furthermore, a rubber layer is covered outside the pressing plate 32. During the process of moving the packing box, the top of the inclined packing box contacts the pressing plate 32. By increasing the frictional resistance on the surface of the pressing plate 32 through the rubber layer, the packing box is not easily slipped off the bearing plate 21.

[0012] The beneficial effects of the present utility model: The traction device drives the synchronous linear movement of the limiting rod and the load-bearing part. At this time, the elastic element is stretched and thus stores energy. Until the limiting block is completely clamped into the through groove, the elastic element completes energy storage. When the fixture carries the goods to the designated position, after the lower end of the load-bearing part contacts the goods that have been palletized below and then lifts upward, the telescopic traction member drives the turntable to rotate, and the turntable drives the ejector rod to lift the limiting block. The elastic element quickly releases energy and returns to the normal state, driving the synchronous linear movement of the limiting block and the load-bearing part to retract to the bottom of the frame, achieving the purpose of quickly retracting the bearing plate and quickly placing the goods. Description of the Drawings

[0013] The present utility model can be further illustrated by the non-limiting embodiments given in the drawings;

[0014] Figure 1 is a three-dimensional structural schematic diagram of the palletizing fixture bearing plate in the extended state in the embodiment of the present utility model;

[0015] Figure 2 is a three-dimensional structural schematic diagram of the palletizing fixture bearing plate in the retracted state in the embodiment of the present utility model;

[0016] Figure 3 is a cross-sectional schematic diagram of the triggering device of the palletizing fixture in the embodiment of the present utility model;

[0017] Figure 4 is Figure 3 an enlarged schematic diagram of part A of

[0018] Figure 5 It is the bottom view of the palletizing fixture bearing plate in the extended state in the embodiment of the present utility model;

[0019] Figure 6 It is the schematic cross-sectional view of the load-bearing part of the palletizing fixture in the embodiment of the present utility model.

[0020] Wherein, 1-frame, 14-chute, 141-through groove, 2-load-bearing part, 21-bearing plate, 22-positioning member, 23-mounting seat, 25-rail, 26-sliding sleeve, 27-fixed shaft, 28-rubber roller, 3-clamping part, 31-mounting plate, 32-pressure plate, 33-motor linear rail, 4-traction device, 41-elastic element, 43-positioning rod, 431-positioning block, 432-mounting groove, 433-spring, 44-rack, 5-trigger device, 51-rotating disc, 52-ejector rod, 53-telescopic traction device. Specific embodiments

[0021] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments:

[0022] As Figures 1 to 6 shown

[0023] A palletizing fixture includes a frame 1, a load-bearing part 2, a clamping part 3, a traction device 4 and a trigger device 5.

[0024] The bottom of the frame 1 is provided with a rail 25 and a matching sliding sleeve 26, and the mounting seat 23 is installed on the sliding sleeve 26 to realize the sliding of the load-bearing part 2 at the bottom of the frame 1. A chute 14 is provided at the bottom of the frame 1, and the traction device 4 is slidably installed at the bottom of the frame 1. The traction device 4 pulls the movement of the load-bearing part 2. The load-bearing part 2 includes a bearing plate 21, a positioning member 22 and a mounting seat 23. The positioning member 22 is hinged to the mounting seat 23, the bearing plate 21 is fixedly installed on the positioning member 22, and when the positioning member 22 contacts the mounting seat 23, the bearing plate 21 is inclined downward compared with the base.

[0025] A through groove 141 is provided at the bottom of one end of the chute 14. A positioning rod 43 is slidably installed in the chute 14. An elastic element 41 is connected between the positioning rod 43 and one end of the frame 1. A rack 44 is connected between the positioning rod 43 and the mounting seat 23. The traction device 4 is in transmission connection with the rack 44. The rack 44 drives the positioning rod 43 and the load-bearing part 2 to move linearly synchronously. The elastic element 41 is stretched for energy storage. Mounting grooves 432 are provided at both ends of the positioning rod 43. Positioning blocks 431 are slidably installed in the mounting grooves 432. A spring 433 is connected between the top of the positioning block 431 and the mounting groove 432. When the positioning block 431 is completely engaged in the through groove 141, the traction device stops transmission, and the movement of the load-bearing part 2 is restricted, and the elastic element 41 completes energy storage.

[0026] The triggering device 5 includes a turntable 51, a push rod 52, and a telescopic traction member 53. The turntable 51 is rotatably mounted on the outer side wall of the frame 1 through a torsion spring. The push rod 52 is mounted on the turntable 51, and one end of the push rod 52 is located in the through groove 141 and moves in a circular motion following the turntable 51. One end of the telescopic traction member 53 is hinged to the turntable 51, and the other end is connected to the outermost bearing plate 21. When the elastic element 41 completes energy storage, the telescopic traction member 53 is in the longest straightened state. At this time, when contacting the stacked goods below, the bearing plate 21 receives an upward and outward force, and the telescopic traction member 53 cannot be stretched any further. Therefore, it drives the turntable 51 to rotate, and the turntable 51 drives the push rod 52 to lift the limit block 431 upward, and the elastic element 41 releases energy to drive the limit rod 43 to quickly return to its original position.

[0027] Specifically, a fixed shaft 27 is installed at the end of the bearing plate 21, and a rubber roller 28 is installed on the fixed shaft 27 through a bearing. When discharging the palletized goods, the bearing plate 21 contacts the palletized packaging boxes through the rolling rubber rollers 28, reducing the frictional resistance between the bearing plate 21 and the packaging boxes, thereby avoiding damage to the packaging boxes when the bearing plate 21 is quickly retracted.

[0028] Specifically, the bearing plate 21 is inclined downward by 2° - 5° relative to the base. In this embodiment, the inclination angle of the bearing plate 21 is preferably 3°. After the load-bearing part 2 contacts the goods below, the telescopic traction member 53 quickly drives the turntable 51 to rotate, releasing the limiting state of the limit rod 43.

[0029] Specifically, the clamping part 3 includes a mounting plate 31, a pressing plate 32, and a motor linear slide rail 33. The slide rail of the motor linear slide rail 33 is fixedly installed on the frame 1, the mounting plate 31 is fixed on the slide table of the motor linear slide rail 33, and the pressing plate 32 is fixedly installed on the mounting plate 31. In this way, the position of the pressing plate 32 can be controlled, expanding the scope of use for different specifications of goods.

[0030] Specifically, the outer surface of the pressing plate 32 is covered with a rubber layer. During the process of moving the packaging box, the top of the inclined packaging box contacts the pressing plate 32. By increasing the frictional resistance on the surface of the pressing plate 32 through the rubber layer, the packaging box is not easily slipped off the bearing plate 21.

[0031] The usage method of the present utility model is as follows: The traction device 4 drives the synchronous linear movement of the limit rod 43 and the load-bearing part 2. At this time, the elastic element 41 is stretched to store energy until the limit block 431 is completely engaged in the through groove 141, and the elastic element 41 completes energy storage. When the fixture carries the goods to the designated position, the lower end of the load-bearing part 2 contacts the goods below and then lifts upward. Through the telescopic traction member 53, it drives the turntable 51 to rotate. The turntable 51 drives the push rod 52 to lift the limit block 431. The elastic element 41 quickly releases energy and returns to its normal state, driving the synchronous linear movement of the limit rod 43 and the load-bearing part 2 to retract to the bottom of the frame 1, achieving the purpose of quickly retracting the bearing plate and quickly placing the goods.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention. The technologies, shapes, and structures not described in detail in the present invention are all well-known technologies.

Claims

1. A palletizing fixture, comprising a frame (1), a load-bearing portion (2), a clamping portion (3) and a traction device (4), wherein the traction device (4) and the load-bearing portion (2) are slidably mounted on the bottom of the frame (1), and the traction device (4) is used to traction the movement of the load-bearing portion (2), characterized in that: The load-bearing part (2) comprises a bearing plate (21), a limiting member (22) and a mounting seat (23); the mounting seat (23) is slidably mounted on the frame (1); the limiting member (22) is hinged on the mounting seat (23); the bearing plate (21) is fixedly mounted on the limiting member (22); when the limiting member (22) contacts the mounting seat (23), the bearing plate (21) is tilted downward relative to the base; A slide groove (14) is provided at the bottom of the frame (1), a through groove (141) is provided at one end of the slide groove (14), a limit rod (43) is slidably installed in the slide groove (14), an elastic element (41) is connected between the limit rod (43) and one end of the frame (1), a rack (44) is connected between the limit rod (43) and the mounting seat (23), the traction device (4) is transmission-connected to the rack (44), mounting grooves (432) are provided at both ends of the limit rod (43), a limit block (431) is slidably installed in the mounting groove (432), and a spring (433) is connected between the top of the limit block (431) and the mounting groove (432); A trigger device (5) is provided at the bottom of the frame (1), the trigger device (5) comprising a rotating disk (51), a push rod (52) and a telescopic traction member (53); the rotating disk (51) is rotatably mounted on the frame (1) via a torsion spring; the push rod (52) is mounted on the rotating disk (51), and one end of the push rod (52) is located in the through slot (141); one end of the telescopic traction member (53) is hinged to the rotating disk (51), and the other end is connected to the outermost bearing plate (21); when the limit block (431) is inserted into the through slot (141), the telescopic traction member (53) is in a longest state, and the bearing plate (21) is in a downwardly inclined state.

2. A palletizing fixture according to claim 1, characterized in that: A fixed shaft (27) is installed at the end of the bearing plate (21), a rubber roller (28) is installed on the fixed shaft (27), and an end of the telescopic traction member (53) is connected to the fixed shaft (27).

3. A palletizing fixture according to claim 2, characterized in that: The load-bearing plate (21) is tilted downwards by 2° to 5° compared to the base.

4. A palletizing fixture according to claim 1, characterized in that: The clamping part (3) comprises a mounting plate (31), a clamping plate (32) and a motor linear slide rail (33); the slide rail of the motor linear slide rail (33) is mounted on the frame (1); the mounting plate (31) is fixed on the slide table of the motor linear slide rail (33); and the clamping plate (32) is mounted on the mounting plate (31).

5. A palletizing fixture according to claim 4, characterized in that: The outside of the pressing plate (32) is covered with a rubber layer.

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