Opening and closing type material grabbing device

Abstract

An opening and closing type material grabbing device belongs to the technical field of grabbing equipment and comprises a stacking machine body, a cargo carrying table, a driving part and a telescopic mechanism, the output end of the telescopic mechanism is connected with a steel tank, the bottom end of the steel tank is connected with a top plate, and two grabbing hands capable of moving relatively are arranged below the top plate. According to the equipment, the grabbing distance can be rapidly and accurately adjusted according to the specific diameters of materials, the grabbing effect on the materials with different diameters is improved, the problems that grabbing is not firm, the surfaces of the materials are damaged and the like due to the fact that the grabbing distance is fixed are effectively solved, the whole grabbing process is more stable and reliable, and the grabbing efficiency is improved. The gripper is simple in structure and convenient to operate, can better meet diversified production and processing requirements, has remarkable advantages especially on an automatic production line for processing materials of different specifications, can be specifically replaced and installed with different grippers according to the materials of different shapes, and achieves accurate adaptation of the grippers and the materials of different shapes.

Description

Technical Field

[0001] The utility model belongs to the technical field of grabbing equipment, and in particular relates to an opening and closing material grabbing device. Background Art

[0002] During the processing, the material handling device can accurately grab raw materials from the storage area and place them on the processing equipment to ensure continuous processing. During the handling process, the gripping device can safely and stably transfer materials of different lengths, diameters, and weights between different workstations, avoiding the damage and inefficiencies that may be caused by manual handling.

[0003] Related art (Announcement No. CN221215584U) discloses a grabbing and storage mechanism for columnar materials, including a shelf and a stacker, wherein columnar materials are placed on the shelf; a loading mechanism is provided on the shelf extending in the material-retrieving direction of the retrieval mechanism; the retrieval mechanism includes a second moving mechanism and a grabbing mechanism, and driven by the second moving mechanism, the grabbing mechanism extends to the outside of the loading mechanism, and the first moving mechanism moves upward to support and grab the columnar materials during the rising process of the grabbing mechanism. The utility model utilizes the retrieval mechanism to realize the grabbing, storage and release of products, thereby improving the convenience of product storage and the efficiency and safety of grabbing. When the second moving mechanism moves the columnar materials, the gripper can stably support the columnar materials. The columnar materials are directly placed on the loading mechanism, and the retrieval mechanism can directly grab them when it moves to the grabbing position, thereby improving the efficiency of grabbing.

[0004] In the above technology, although the material can be grasped, the distance between the two grippers is fixed and cannot be adjusted, resulting in a limit on the diameter of the material that can be grasped and a limited scope of use of the grasping device. Utility Model Content

[0005] In view of the problems existing in the prior art, although the existing technology can realize the grabbing of materials, the spacing between the two grippers is fixed and cannot be adjusted, resulting in the limitation of the diameter of the materials that can be grabbed and the limitation of the scope of use of the grabbing equipment. The utility model provides an opening and closing material grabbing device, which can quickly and accurately adjust the grabbing spacing according to the specific diameter of the material, thereby improving the grabbing effect of materials of different diameters, effectively avoiding the problems of loose grabbing and damage to the material surface caused by the fixed grabbing spacing, making the entire grabbing process more stable and reliable, and better able to adapt to the diverse production and processing needs, especially in the automated production line processing materials of different specifications, with significant advantages. Its specific technical solution is as follows:

[0006] An opening and closing material grabbing device includes a stacker main body, a loading platform, a driving member, and a telescopic mechanism. The output end of the telescopic mechanism is connected to a steel trough, the bottom end of the steel trough is connected to a top plate, and two relatively movable grippers are provided below the top plate. The relative distance and positioning of the two grippers are adjusted by an adjustment unit.

[0007] The adjusting unit includes a driving assembly, and also includes a forward and reverse screw rod rotatably arranged under the top plate, the driving assembly is used to realize the rotation of the forward and reverse screw rods and the locking after rotation, the forward and reverse screw rods are symmetrically provided with external threads in opposite directions and symmetrical, the forward and reverse screw rods are threadedly sleeved with two movable seats, and the two movable seats are symmetrically arranged relative to the forward and reverse screw rods, and the adjusting unit also includes a sliding assembly, through which the moving direction of the gripper is limited;

[0008] Wherein, the two movable seats are respectively connected to the top ends of the two grippers.

[0009] In the above technical solution, the driving assembly includes a reduction motor fixedly mounted on the top plate, a motor adjustment plate is provided on the reduction motor, the output end of the motor adjustment plate is connected to an output shaft, a first synchronous pulley is fixedly mounted on the output shaft, a second synchronous pulley is fixedly mounted on the end of the forward and reverse screw rods, and a synchronous belt is provided on the sliding sleeve of the second synchronous pulley and the first synchronous pulley.

[0010] In the above technical solution, a motor mounting plate is further provided on the reduction motor, and the motor mounting plate can be moved and adjusted in the vertical direction along the reduction motor.

[0011] In the above technical solution, the sliding components are provided in multiple groups, and the sliding components in each group are arranged equidistantly along the upper surface of the gripper;

[0012] Each group of sliding components includes a connecting plate fixedly mounted on the upper surfaces of the two grippers, and a slider fixedly mounted on the connecting plate. The sliding component also includes a guide rail mounted on the lower surface of the top plate, and the slider is slidably mounted on the guide rail.

[0013] In the above technical solution, the middle width of the guide rail is smaller than the widths at its upper and lower ends.

[0014] In the above technical solution, a sensing plate is installed on the gripper, and limit switches are respectively installed on the top end of the sensing plate and the bottom end of the top plate, and the two limit switches are arranged in corresponding positions.

[0015] In the above technical solution, the top plate and the gripper are quickly assembled by an assembly unit, and two groups of the assembly units are provided, and the two groups of the assembly units are symmetrically arranged relative to the top plate;

[0016] The assembly unit includes a first base body fixedly mounted on the lower surface of the top plate, and a second base body fixedly mounted on the upper surface of the gripper, the first base body and the second base body are correspondingly arranged up and down, and the side wall of the second base body is symmetrically provided with two card slots, the inner cavity of the card slot is slidably plugged with a card column, and the end of the card column away from the second base body extends out of the first base body and is installed with a pull ring, a spring is sleeved on the card column, one end of the spring is connected to the card column, and the other end of the spring is connected to the inner wall of the first base, and the end of the card column inserted into the card slot is provided with an inclined section.

[0017] In the above technical solution, the gripper is configured to be L-shaped.

[0018] In the above technical solution, the cargo platform moves vertically along the stacker body through a moving mechanism, the driving member is arranged in the cargo platform, and the output end of the driving member is connected to a telescopic mechanism.

[0019] Compared with the prior art, the opening and closing material grabbing device of the present invention has the following beneficial effects:

[0020] First, although the existing technology can realize the grasping of materials, the spacing between the two grippers is fixed and cannot be adjusted, which results in the problem that the diameter of the materials that can be grasped is limited and the scope of use of the grasping equipment is limited. The utility model can accurately realize the free adjustment of the spacing between the front and rear groups of grippers through the cooperation of positive and negative screw rods, movable seats, slide blocks, guide rails and other components. Whether it is a material with a small diameter or a material with a large diameter, the equipment can quickly and accurately adjust the grasping spacing according to its specific diameter, thereby improving the grasping effect of materials with different diameters, effectively avoiding problems such as loose grasping and damage to the material surface caused by fixed grasping spacing, making the entire grasping process more stable and reliable, and can better adapt to diversified production and processing needs, especially in automated production lines that process materials of different specifications, it has significant advantages;

[0021] Second, in the present invention, by cooperating with the motor adjustment plate, the output shaft, the first synchronous pulley, the second synchronous pulley, the synchronous belt and other components, the rotation of the forward and reverse screws can be realized, thereby realizing that the two sets of moving seats drive the two grippers to move relative to or away from each other, that is, by rotating the output end of the motor adjustment plate, the relative distance between the two grippers can be adjusted, and the adjusted locking can be achieved to ensure the stability of the grippers when grabbing materials subsequently;

[0022] 3. In the present invention, the cooperation of the connecting plate, slider, guide rail and other components can ensure that the front and rear groups of grippers always move in relative directions without misalignment or relative offset, thereby ensuring that the two groups of grippers can still correspond after the gripping spacing is adjusted, ensuring the subsequent gripping effect;

[0023] Fourth, the present invention can limit the displacement length of the gripper through the cooperation of the limit switch and the induction plate, thus avoiding excessive movement of the gripper;

[0024] 5. The utility model can realize the rapid connection and assembly of the gripper and the top plate through the rapid assembly of the first base and the second base, that is, different grippers can be replaced and installed according to the different shapes of materials, so as to achieve accurate adaptation of the gripper to materials of different shapes and ensure the stable gripping effect of the materials;

[0025] 6. In the present invention, when the second base moves upward and gradually inserts into the inner cavity of the first base, its internal mechanical structure triggers the corresponding linkage mechanism, so that the inclined section can automatically snap into the inner cavity of the slot, thereby ensuring that the second base is automatically assembled and snapped into the first base without the need for additional operating steps. This automated assembly and snap-in method greatly improves the convenience of the installation operation of the second base and the first base. At the same time, it can effectively shorten the assembly time of the gripper at the top plate, improve the efficiency of the entire assembly process, and ensure the efficiency and stability of the entire assembly work.

[0026] In summary, this equipment can quickly and accurately adjust the grasping spacing according to the specific diameter of the material, thereby improving the grasping effect of materials of different diameters, and effectively avoiding problems such as loose grasping and damage to the material surface caused by fixed grasping spacing. The whole grasping process is more stable and reliable, and can better adapt to diversified production and processing needs. It has significant advantages, especially in the automated production line that processes materials of different specifications. In addition, different grippers can be replaced and installed according to materials of different shapes, so as to achieve accurate adaptation of the grippers to materials of different shapes and ensure stable grasping effect of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of the main body of the stacker of the present utility model;

[0028] Figure 2 This is a schematic diagram of the structure of the gripper of the utility model;

[0029] Figure 3 for Figure 2 A magnified view of point A;

[0030] Figure 4 This is a schematic structural diagram of the second seat body of the present utility model;

[0031] Figure 5 for Figure 4 Enlarged view of point B;

[0032] Figure 6 This is a side structural diagram of the reduction motor of the utility model;

[0033] Figure 7 for Figure 6 Enlarged view of point C;

[0034] Figures 1 to 7 Among them, 1. Stacker body, 2. Cargo platform, 3. Driving part, 4. Telescopic mechanism, 5. Steel trough, 6. Top plate, 7. Grip, 8. Adjustment unit, 81. Reducer motor, 82. Motor mounting plate, 83. Motor adjustment plate, 84. Output shaft, 85. First synchronous pulley, 86. Forward and reverse screw rod, 87. Second synchronous pulley, 88. Synchronous belt, 89. Moving seat, 810. Connecting plate, 811. Slider, 812. Guide rail, 813. Limit switch, 814. Induction plate, 9. Assembly unit, 91. First seat body, 92. Second seat body, 93. Slot, 94. Column, 95. Spring, 96. Tilting section, 97. Pull ring. DETAILED DESCRIPTION

[0035] The following is a combination of specific implementation cases and attached Figures 1 to 7 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0036] See Figures 1 to 7 As shown, an opening and closing material grabbing device includes a stacker body 1, a cargo platform 2, a driving member 3, and a telescopic mechanism 4. The output end of the telescopic mechanism 4 is connected to a steel trough 5. The driving member 3 drives the telescopic mechanism 4 to telescopically move to realize the movement of the steel trough 5. The bottom end of the steel trough 5 is connected to a top plate 6. The movement of the steel trough 5 drives the displacement of the top plate 6. Two relatively movable grippers 7 are provided below the top plate 6. The relative distance between the two grippers 7 is adjusted and positioned by an adjustment unit 8. The distance between the two grippers 7 is adjusted to meet the grabbing needs of different materials.

[0037] Specific reference Figure 2 and Figure 3As shown, the adjustment unit 8 includes a driving assembly, and also includes a forward and reverse screw rod 86 that is rotated by a bearing seat and is arranged below the top plate 6. The rotation of the forward and reverse screw rod 86 and the locking after rotation are realized by the driving assembly. The forward and reverse screw rod 86 are symmetrically provided with external threads in opposite directions and symmetrical. The threaded sleeves on the forward and reverse screw rod 86 are provided with two movable seats 89, and the two movable seats 89 are symmetrically arranged relative to the forward and reverse screw rod 86. The adjustment unit 8 also includes a sliding assembly, which limits the moving direction of the gripper 7 through the sliding assembly, wherein the two movable seats 89 are respectively connected to the top ends of the two grippers 7. When the forward and reverse screw rod 86 rotates, the two movable seats 89 can be prompted to move synchronously toward the middle or toward the outside, thereby realizing the synchronous movement of the two grippers 7 toward the middle or toward the outside; the driving assembly includes a reduction motor 81 fixedly mounted on the top plate 6, and the reduction motor A motor adjustment plate 83 is provided on 81, and the reduction motor 81 provides support for the installation of the motor adjustment plate 83; a motor mounting plate 82 is also provided on the reduction motor 81, and the motor mounting plate 82 can be moved and adjusted in the vertical direction along the reduction motor 81. Specifically, the output end of the motor adjustment plate 83 is connected to the motor mounting plate 82, and the motor mounting plate 82 can be installed at different heights of the reduction motor 81 by bolts and nuts, so as to achieve the adjustment of the installation position of the output end of the reduction motor 81 following the motor mounting plate 82; the output end of the motor adjustment plate 83 passes through the motor mounting plate 82 and is connected to an output shaft 84, and a first synchronous pulley 85 is fixedly mounted on the output shaft 84, and a second synchronous pulley 87 is fixedly mounted on the end of the forward and reverse screw rods 86, and a synchronous belt 88 is provided on the sliding sleeve of the second synchronous pulley 87 and the first synchronous pulley 85;

[0038] The output shaft 84 is driven to rotate by the opened motor adjustment plate 83 to promote the circumferential rotation of the first synchronous pulley 85. At this time, the synchronous belt 88 mounted on the first synchronous pulley 85 drives the second synchronous pulley 87 to rotate synchronously and in the same direction as the first synchronous pulley 85, thereby promoting the rotation of the forward and reverse screw rods 86. Since the forward and reverse screw rods 86 are symmetrically provided with external threads in opposite directions, the rotating forward and reverse screw rods 86 can promote the two movable seats 89 on its outer wall to move toward the middle or outward at the same time. At this time, the two grippers 7 at the bottom end of the movable seat 89 also move toward the middle or outward at the same time.

[0039] Main references Figure 4As shown, there are multiple groups of sliding assemblies, and each group of sliding assemblies is equidistantly arranged along the upper surface of the gripper 7; each group of sliding assemblies includes a connecting plate 810 fixedly mounted on the upper surface of the two grippers 7, and also includes a slider 811 fixedly mounted on the connecting plate 810, and the sliding assembly also includes a guide rail 812 mounted on the lower surface of the top plate 6, and the slider 811 is slidably sleeved on the guide rail 812, and the two grippers 7 at the bottom of the moving seat 89 also move toward the middle or outward at the same time. At this time, the slider 811 moves along the outer wall of the guide rail 812 to limit the moving direction of the gripper 7; mainly refer to Figure 5 As shown, a sensing plate 814 is installed on the gripper 7, and a limit switch 813 is installed on the top of the sensing plate 814 and the bottom of the top plate 6 respectively, and the two limit switches 813 are set in corresponding positions. The limit switch 813 is electrically connected to the motor adjustment plate 83. The limit switch 813 is triggered to stop the output end of the motor adjustment plate 83 to avoid excessive movement of the slider 811 caused by excessive rotation of the forward and reverse screw rods 86, thereby limiting the moving distance of the slider 811. The limit switch 813 and the sensing plate 814 can meet the above-mentioned usage requirements, and their models are not limited here.

[0040] Main references Figure 6 As shown, the middle width of the guide rail 812 is smaller than the width of its upper and lower ends, that is, the middle part of the guide rail 812 is recessed inward, thereby ensuring that when the gripper 7 moves, the slider 811 is prompted to move stably along the outer wall of the guide rail 812 without falling off the outer wall of the guide rail 812, that is, ensuring that the gripper 7 does not fall downward when displaced relative to the top plate 6.

[0041] In addition, the main reference Figure 6 and Figure 7 As shown, the top plate 6 and the gripper 7 are quickly assembled through the assembly unit 9, and the assembly unit 9 is provided with two groups, and the two groups of assembly units 9 are symmetrically arranged relative to the top plate 6; the assembly unit 9 includes a first base body 91 fixedly mounted on the lower surface of the top plate 6, and also includes a second base body 92 fixedly mounted on the upper surface of the gripper 7, the first base body 91 and the second base body 92 are arranged correspondingly up and down, and the side wall of the second base body 92 is symmetrically provided with two card grooves 93, the inner cavity of the card groove 93 is slidably inserted with a card column 94, and the end of the card column 94 away from the second base body 92 extends out of the first base body 91 and is installed with a pull ring 97, a spring 95 is sleeved on the card column 94, one end of the spring 95 is connected to the card column 94, and the other end of the spring 95 is connected to the inner wall of the first base body 91, and the end of the card column 94 inserted into the card groove 93 is provided with an inclined section 96;

[0042] When the new gripper 7 is installed, the second seat body 92 on the gripper 7 is inserted into the first seat body 91 under the top plate 6 at the corresponding position. In the process of inserting the second seat body 92 into the inner cavity of the first seat body 91, the inclined section 96 is first forced to move outward, and the clamping column 94 and the pull ring 97 are moved outward, and at the same time, the spring 95 is forced to compress until the second seat body 92 is completely embedded in the first seat body 91. At this time, the clamping groove 93 corresponds to the position of the inclined section 96. Under the elastic action of the spring 95, the clamping column 94 drives the inclined section 96 to automatically engage the inner cavity of the clamping groove 93. At this time, the second seat body 92 is embedded in the first seat body 91 to realize automatic clamping and limiting. The new gripper 7 and the top plate 6 quickly and effectively form a stable connection relationship, and under the action of the horizontal surface at the top of the inclined section 96, it can prevent the second seat body 92 from downwardly separating from the inner cavity of the first seat body 91, thereby ensuring the stability of the connection between the gripper 7 and the top plate 6.

[0043] Specific reference Figure 2 As shown, the gripper 7 is configured to be L-shaped so as to support the bottom of materials of different diameters after being clamped by the gripper 7, thereby preventing the materials from falling off when moving after being clamped, and preventing the materials from being damaged during the gripping process.

[0044] Specific reference Figure 1 As shown, the cargo platform 2 is moved vertically along the stacker main body 1 by a moving mechanism, the driving member 3 is arranged in the cargo platform 2, and the output end of the driving member 3 is connected to the telescopic mechanism 4. The stacker main body 1, the cargo platform 2, the driving member 3, and the telescopic mechanism 4 are all existing technologies. The connection relationship and the principle of synergy between them are the same as those in the existing technology with the announcement number CN221215584U, and the principle of material grabbing implemented in this application is the same as the principle of grabbing columnar materials in the existing technology with the announcement number CN221215584U, which will not be repeated or limited here; specifically, the stacker main body 1 is provided with the same The same moving mechanism as in the prior art can be used to drive the cargo platform 2 to move vertically up and down, wherein the above-mentioned moving mechanism adopts a chain hoist or a wire rope drum hoist or a wire rope traction wheel hoist; the driving member 3 and the telescopic mechanism 4 are also the same technology as the above-mentioned prior art, the driving member 3 is a motor, and the telescopic mechanism 4 is a telescopic fork. The driving member 3 can drive the telescopic mechanism 4 to move telescopically, and the specific principle of the cooperation between the two is the same as the principle in the prior art with the announcement number CN221215584U. The model of the telescopic mechanism 4 is TT-170×70-1000-1180-EH-1Z-2H.

[0045] In the present application, by replacing different grippers 7, it is possible to specifically adapt to the gripping needs of materials of different shapes; the limit switch 813 and the induction plate 814 are existing technologies. The limit switch 813 is set based on a mechanical trigger mechanism. When the detected object reaches the preset position, the mechanical structure in the switch is acted upon by an external force, and the contact is triggered, thereby generating a switch signal. This signal can be used to start, stop or reverse the motor, and can also be used for other control circuits to ensure that the equipment operates according to the set logic. In the present application, the limit switch 813 is triggered to stop the output end of the motor adjustment plate 83 to avoid excessive movement of the slider 811 caused by excessive rotation of the forward and reverse screw rods 86, thereby limiting the moving distance of the slider 811. The limit switch 813 and the induction plate 814 can meet the above-mentioned usage requirements, and their models are not limited here; when the distance of the gripper 7 exceeds the set distance during the grasping process, the limit switch induction plate moves to the limit switch, triggering the limit switch, so that the gripper 7 can no longer move; the reduction motor 81 is a commonly used reduction motor on the market, and its output end can rotate forward or reverse as needed, and when the limit switch 813 stops rotating, its output end can be self-locked and will not continue to rotate. It can meet the above-mentioned usage requirements, and its models are not limited or elaborated here; the above-mentioned components of the prior art can meet the normal usage requirements of their respective functions, and the above-mentioned existing components are not excessively elaborated and limited here.

[0046] It is worth noting that in this application, the forward and reverse screw rods 86 are screw rods with symmetrical forward and reverse threads commonly used in the market. When the forward and reverse screw rods 86 rotate, they can prompt the two movable seats 89 to move synchronously to the middle or to both sides, and ensure that the displacement distances of the two movable seats 89 are the same, thereby ensuring that the displacement distances of the two grippers 7 are the same.

[0047] The working principle of an opening and closing material grabbing device in this embodiment is as follows:

[0048] When the distance between the two grippers 7 is adjusted according to the needs of materials with different diameters, the output shaft 84 is driven to rotate by the opened motor adjustment plate 83 to cause the first synchronous pulley 85 to rotate circumferentially. At this time, the synchronous belt 88 sleeved on the first synchronous pulley 85 drives the second synchronous pulley 87 to rotate synchronously and in the same direction as the first synchronous pulley 85, thereby causing the forward and reverse screw rods 86 to rotate. Since the forward and reverse screw rods 86 are symmetrically provided with external threads in opposite directions, the rotating forward and reverse screw rods 86 can cause the two moving seats 89 on the outer wall to move toward the middle or toward the outside at the same time. At this time, the two grippers 7 at the bottom of the movable seat 89 also move toward the middle or outward at the same time. At this time, the slider 811 moves along the outer wall of the guide rail 812 to limit the moving direction of the grippers 7. When the two grippers 7 move to the appropriate position, the motor adjustment plate 83 is closed to cause the output end thereof to self-lock. At this time, the first synchronous pulley 85 and the second synchronous pulley 87 no longer rotate, that is, the positions of the forward and reverse screw rods 86 and the movable seat 89 are locked. At this time, the position of the grippers 7 at the bottom of the movable seat 89 is stabilized after adjustment, that is, the adjustment and locking of the distance between the two grippers 7 is achieved;

[0049] When the gripper 7 needs to be adaptively replaced according to the material, the pull ring 97 is pulled outward to cause the inclined section 96 at the clamping column 94 to disengage from the corresponding inner cavity of the clamping groove 93. At this time, the spring 95 is forced to compress, and the gripper 7 is moved downward to cause the second seat body 92 to disengage from the first seat body 91, that is, the gripper 7 is disassembled at the top plate 6. The external pulling effect on the pull ring 97 can be removed, and the elastic force of the spring 95 will cause the inclined section 96 to extend inward into the inner cavity of the first seat body 91; when the new gripper 7 is installed, the second seat body 92 on the gripper 7 is inserted into the first seat body 91 under the top plate 6 at the corresponding position. In the process of inserting the second seat body 92 into the inner cavity of the first seat body 91, first The inclined section 96 is forced to move outward, and the clamping column 94 and the pull ring 97 are moved outward, and the spring 95 is forced to compress until the second seat body 92 is completely embedded in the first seat body 91. At this time, the clamping groove 93 corresponds to the position of the inclined section 96. Under the elastic force of the spring 95, the clamping column 94 drives the inclined section 96 to automatically snap into the inner cavity of the clamping groove 93. At this time, the second seat body 92 is embedded in the first seat body 91 to achieve automatic clamping and limiting. The new gripper 7 and the top plate 6 quickly and effectively form a stable connection relationship. Under the action of the horizontal surface of the top of the inclined section 96, the second seat body 92 can be prevented from downwardly separating from the inner cavity of the first seat body 91, thereby ensuring the stability of the connection between the gripper 7 and the top plate 6.

[0050] This equipment can quickly and accurately adjust the gripping distance according to the specific diameter of the material, thereby improving the gripping effect of materials of different diameters, and effectively avoiding problems such as loose gripping and damage to the material surface caused by fixed gripping distance, making the entire gripping process more stable and reliable, and can better adapt to diversified production and processing needs, especially in automated production lines that process materials of different specifications. It has significant advantages. In addition, different grippers 7 can be replaced and installed according to materials of different shapes, so as to achieve accurate adaptation of the grippers 7 to materials of different shapes and ensure stable gripping effect of materials.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An opening and closing material grabbing device, comprising a stacker main body (1), a cargo platform (2), a driving member (3), and a telescopic mechanism (4), characterized in that: The output end of the telescopic mechanism (4) is connected to a steel trough (5), the bottom end of the steel trough (5) is connected to a top plate (6), and two relatively movable grippers (7) are provided below the top plate (6), and the relative distance between the two grippers (7) is adjusted and positioned by an adjustment unit (8); The adjusting unit (8) includes a driving assembly and a forward and reverse screw rod (86) rotatably arranged below the top plate (6). The driving assembly realizes the rotation of the forward and reverse screw rod (86) and the locking after the rotation. The forward and reverse screw rod (86) is symmetrically provided with external threads in opposite directions and symmetrically. Two movable seats (89) are threadedly sleeved on the forward and reverse screw rod (86), and the two movable seats (89) are symmetrically arranged relative to the forward and reverse screw rod (86). The adjusting unit (8) also includes a sliding assembly, and the sliding assembly is used to limit the moving direction of the gripper (7); The two movable seats (89) are respectively connected to the top ends of the two grippers (7).

2. The opening and closing material grabbing device according to claim 1, characterized in that: The driving assembly comprises a reduction motor (81) fixedly mounted on the top plate (6); a motor adjustment plate (83) is provided on the reduction motor (81); an output end of the motor adjustment plate (83) is connected to an output shaft (84); a first synchronous pulley (85) is fixedly mounted on the output shaft (84); a second synchronous pulley (87) is fixedly mounted on the end of the forward and reverse screw rods (86); and a synchronous belt (88) is provided on a sliding sleeve of the second synchronous pulley (87) and the first synchronous pulley (85).

3. The opening and closing material grabbing device according to claim 2, characterized in that: The reduction motor (81) is further provided with a motor mounting plate (82), and the motor mounting plate (82) can be moved and adjusted in a vertical direction along the reduction motor (81).

4. The opening and closing material grabbing device according to claim 1, characterized in that: The sliding components are provided in multiple groups, and each group of the sliding components is arranged equidistantly along the upper surface of the gripper (7); Each group of the sliding components includes a connecting plate (810) fixedly mounted on the upper surfaces of the two grippers (7), and a slider (811) fixedly mounted on the connecting plate (810). The sliding components also include a guide rail (812) mounted on the lower surface of the top plate (6), and the slider (811) is slidably mounted on the guide rail (812).

5. The opening and closing material grabbing device according to claim 4, characterized in that: The middle width of the guide rail (812) is smaller than the widths at its upper and lower ends.

6. The opening and closing material grabbing device according to claim 4, characterized in that: The gripper (7) is provided with a sensing plate (814), and the top end of the sensing plate (814) and the bottom end of the top plate (6) are respectively provided with limit switches (813), and the positions of the two limit switches (813) are correspondingly arranged.

7. The opening and closing material grabbing device according to claim 1, characterized in that: The top plate (6) and the gripper (7) are quickly assembled via an assembly unit (9), and two groups of the assembly units (9) are provided, and the two groups of the assembly units (9) are symmetrically arranged relative to the top plate (6); The assembly unit (9) includes a first base body (91) fixedly mounted on the lower surface of the top plate (6), and also includes a second base body (92) fixedly mounted on the upper surface of the gripper (7), the first base body (91) and the second base body (92) are arranged correspondingly up and down, and the side wall of the second base body (92) is symmetrically provided with two card slots (93), the inner cavity of the card slot (93) is slidably plugged with a card column (94), and the end of the card column (94) away from the second base body (92) extends out of the first base body (91) and is installed with a pull ring (97), a spring (95) is sleeved on the card column (94), one end of the spring (95) is connected to the card column (94), and the other end of the spring (95) is connected to the inner wall of the first base body (91), and the end of the card column (94) plugged into the card slot (93) is provided with an inclined section (96).

8. The opening and closing material grabbing device according to claim 1, characterized in that: The gripper (7) is configured in an L-shape.

9. The opening and closing material grabbing device according to claim 1, characterized in that: The cargo platform (2) moves vertically along the stacker main body (1) via a moving mechanism; the driving member (3) is arranged in the cargo platform (2); and the output end of the driving member (3) is connected to a telescopic mechanism (4).

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