Pallet fork clamping type gripper with pitch angle adjustment function

By designing a detachable pull rod and articulation assembly, the pitch angle adjustment of the fork-holding and clamping hand claws is achieved, which solves the problems of high thrust during unloading and deformation during loading, and achieves a more convenient unloading process and stability of the hand claws.

CN222906852UActive Publication Date: 2025-05-27STON ROBOT CHANGZHOU
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Patent Information

Application Number
CN202421818861.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-30
Publication Date
2025-05-27
Estimated Expiration
2034-07-30

AI Technical Summary

Technical Problem

Conventional fork-holding and clamping claws require a large thrust when unloading, and it is easy to cause the claws to deform when loading.

Method used

A fork-holding and clamping hand claw with increased pitch angle adjustment is designed. The flip plate and fixing plate are tilted through a detachable pull rod and hinge assembly. The hand claw assembly is in an inclined state, which facilitates the transfer and unloading of goods.

Benefits of technology

By tilting the hand claw assembly, the thrust required for pushing the plate during unloading is reduced, the deformation risk of the hand claw is reduced, and the friction between the goods and the ground is used to facilitate unloading.

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Abstract

The utility model relates to a pallet fork clamping type gripper capable of increasing pitch angle adjustment. The pallet fork clamping type gripper comprises a stretching-in arm, the fixing plate is arranged at one end of the extending arm; the upper part of one side surface of the turnover plate is connected with the fixed plate through a detachable pull rod, and the lower part of the side surface of the turnover plate is connected with the fixed plate through a hinge component; the gripper assembly is arranged on the other side face of the overturning plate; when the turnover plate and the fixing plate are connected through the pull rod, the turnover plate and the fixing plate are in an inclined state at the moment, the gripper assembly is in an upward inclined state, in this way, part of force is supported on the push plate, and deformation of the gripper assembly is avoided; when unloading is needed, the pull rod is detached, the hinge assembly serves as the rotating center, the overturning plate and the fixing plate form an included angle, the gripper assembly is in an inclined state, goods can move downwards in an inclined mode under the driving of the self weight, in this way, thrust needed by the push plate is reduced, and unloading is convenient.
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Description

Technical Field

[0001] The utility model relates to a fork clamping type hand claw, in particular to a fork clamping type hand claw with added pitch angle adjustment. Background Art

[0002] When handling goods in containers, fork clamping claws are required; for example, when the goods placed on the fork clamping claws need to be unloaded, the goods are pushed to the ground by the push plate; when unloading, the conventional fork clamping claws are always in a horizontal state, that is, the push plate needs to overcome the friction between the goods and the fork clamping claws to achieve unloading, which requires a large thrust;

[0003] When loading goods, the conventional fork clamping gripper is in a horizontal state, which will cause the gripper to deform or deflect due to the weight of the goods.

[0004] In summary, how to facilitate unloading, reduce the thrust of the push plate, and avoid deformation of the gripper when loading goods has become an urgent problem that researchers in this field need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to facilitate unloading, reduce the thrust of the push plate and avoid deformation of the claws when loading goods;

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] The utility model is a fork clamping hand gripper with increased pitch angle adjustment, comprising: an extension arm; a fixed plate, which is arranged at one end of the extension arm; a flip plate, the upper part of one side of which is connected to the fixed plate through a detachable pull rod, and the lower part of the side is connected to the fixed plate through a hinge assembly; a hand gripper assembly, which is arranged on the other side of the flip plate;

[0008] The extension arm can perform two-axis linear motion in the vertical plane. The extension arm is fixedly connected to the fixed plate, the gripper assembly is fixedly connected to the flip plate, a detachable pull rod is arranged at the upper part between the flip plate and the fixed plate, and a hinge assembly is arranged at the lower part between the flip plate and the fixed plate;

[0009] When the pull rod connects the flip plate and the fixed plate, the flip plate and the fixed plate are in an inclined state, and the gripper assembly is in an upward inclined state, which is convenient for the transfer of goods. In this way, part of the force is supported on the push plate, avoiding deformation of the gripper assembly. When unloading is required, the pull rod is removed, and the flip plate and the fixed plate form an angle with the hinge assembly as the rotation center. The gripper assembly is in an inclined state, and the goods will move obliquely downward under the drive of their own weight. In this way, the thrust required for the push plate is reduced, which facilitates unloading. In addition, when the goods are in contact with the ground in an inclined state during unloading, it is convenient to use the friction between the goods and the ground to unload.

[0010] In order to illustrate the specific structure of the hinge assembly, the hinge assembly adopted by the utility model includes: a support ear fixed to the side of the flip plate; a rotating seat fixedly connected to the fixed plate, which has a groove for the support ear to be inserted; a rotating shaft passing through the rotating seat and the support ear;

[0011] The support ear is connected to the fixed plate, the rotating seat is connected to the flip plate, and the rotating seat is rotatably connected to the support ear through a rotating shaft, thereby realizing the rotation of the flip plate relative to the fixed plate.

[0012] In order to limit the axial movement of the limit pin, the utility model adopts radially arranged limit pins at both ends of the rotating shaft;

[0013] By arranging limit pins at both ends of the rotating shaft, the limit pins can be prevented from axially moving and separating from the rotating seat.

[0014] In order to explain how to disassemble the pull rod, the utility model adopts that a first flange seat is provided on the flip plate; a second flange seat is provided at the end of the pull rod; the first flange seat and the second flange seat are connected by a detachable bolt;

[0015] The first flange seat and the second flange seat are detachably connected by bolts to achieve separation or connection between the pull rod and the fixing plate.

[0016] Since the hand gripper assembly is in an inclined state, how to continue to transmit power to the push plate, the hand gripper assembly of the utility model includes: a bearing part; a cylinder or an oil cylinder, whose cylinder body is fixed on the fixed plate, whose output end passes through the fixed plate and the flip plate, and the end is located in the bearing part; a push plate, which is slidably fitted in the bearing part; a push rod, one end of which is connected to the push plate, and the other end is hinged to the output end;

[0017] In this solution, the output end of the air cylinder or oil cylinder is hinged to the push rod, so that the push rod is always perpendicular to the push plate, and the output end is always in a horizontal state, which can transmit the power of the air cylinder or oil cylinder to the push plate.

[0018] Beneficial effects of the utility model: the utility model is a fork clamping hand claw with a pitch angle adjustment. When unloading is required, the pull rod is disassembled, and the hinge assembly is used as the rotation center. The flip plate and the fixed plate form an angle, and the hand claw assembly is in an inclined state. The goods will move obliquely downward under the drive of their own weight, so that the thrust required for the push plate is reduced, which is convenient for unloading; BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 yes Figure 1 A magnified image of point A;

[0022] Figure 3 yes Figure 1 The enlarged view of point B;

[0023] Figure 4 It is a structural schematic diagram of the utility model from another perspective;

[0024] In the figure: 1-extension arm, 2-fixed plate, 3-flip plate, 4-pull rod, 5-hinge assembly, 51-support ear, 52-rotating seat, 53-rotating shaft, 54-limiting pin, 6-hand claw assembly, 61-bearing part, 62-push plate, 63-push rod, 7-first flange seat, 8-second flange seat, 9-output end. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] like Figure 1-4 As shown, the utility model is a fork clamping hand gripper with increased pitch angle adjustment, comprising: an extension arm 1; a fixed plate 2, which is arranged at one end of the extension arm 1; a flip plate 3, the upper part of one side of which is connected to the fixed plate 2 through a detachable pull rod 4, and the lower part of the side is connected to the fixed plate 2 through a hinge assembly 5; a hand gripper assembly 6, which is arranged on the other side of the flip plate 3;

[0027] The extension arm can perform two-axis linear motion in the vertical plane. The extension arm is fixedly connected to the fixed plate, the gripper assembly is fixedly connected to the flip plate, a detachable pull rod is arranged at the upper part between the flip plate and the fixed plate, and a hinge assembly is arranged at the lower part between the flip plate and the fixed plate;

[0028] When the pull rod connects the flip plate and the fixed plate, the flip plate and the fixed plate are in an inclined state, and the gripper assembly is in an upward inclined state, which is convenient for the transfer of goods. In this way, part of the force is supported on the push plate, avoiding deformation of the gripper assembly. When unloading is required, the pull rod is removed, and the flip plate and the fixed plate form an angle with the hinge assembly as the rotation center. The gripper assembly is in an inclined state, and the goods will move obliquely downward under the drive of their own weight. In this way, the thrust required for the push plate is reduced, which facilitates unloading. In addition, when the goods are in contact with the ground in an inclined state during unloading, it is convenient to use the friction between the goods and the ground to unload.

[0029] like Figure 3As shown, in order to illustrate the specific structure of the hinge assembly, the hinge assembly 5 used in the utility model includes: a support ear 51, which is fixed to the side of the flip plate 3; a rotating seat 52 connected and fixed to the fixed plate 2, which has a groove for the support ear 51 to be inserted; a rotating shaft 53, which passes through the rotating seat 52 and the support ear 51;

[0030] The support ear is connected to the fixed plate, the rotating seat is connected to the flip plate, and the rotating seat is rotatably connected to the support ear through a rotating shaft, thereby realizing the rotation of the flip plate relative to the fixed plate.

[0031] like Figure 3 As shown, in order to limit the axial movement of the limit pin, the utility model adopts radially arranged limit pins 54 at both ends of the rotating shaft 53;

[0032] By arranging limit pins at both ends of the rotating shaft, the limit pins can be prevented from axially moving and separating from the rotating seat.

[0033] like Figure 2 As shown, in order to illustrate how to disassemble the pull rod, the utility model adopts a first flange seat 7 provided on the flip plate 3; a second flange seat 8 is provided at the end of the pull rod; the first flange seat 7 and the second flange seat 8 are connected by detachable bolts;

[0034] The first flange seat and the second flange seat are detachably connected by bolts to achieve separation or connection between the pull rod and the fixing plate.

[0035] like Figure 1 , 4 As shown, since the hand claw assembly is in an inclined state, how to continue to transmit power to the push plate, the hand claw assembly 6 of the utility model includes: a bearing part 61; a cylinder or an oil cylinder, whose cylinder body is fixed on the fixed plate 2, and whose output end 9 passes through the fixed plate 2 and the flip plate 3, and the end is located in the bearing part 61; a push plate 62, which is slidably fitted in the bearing part 61; a push rod 63, one end of which is connected to the push plate 62, and the other end is hinged to the output end 9;

[0036] In this solution, the output end of the air cylinder or oil cylinder is hinged to the push rod, so that the push rod is always perpendicular to the push plate, and the output end is always in a horizontal state, which can transmit the power of the air cylinder or oil cylinder to the push plate.

[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. Add a fork clamping gripper with pitch angle adjustment, characterized in that: include: Reach into the arm; A fixing plate, which is arranged at one end of the extending arm; A flip plate, the upper part of one side of which is connected to the fixed plate via a detachable pull rod, and the lower part of the side is connected to the fixed plate via a hinge assembly; A gripper assembly is arranged on the other side of the flip plate.

2. The fork clamping gripper with increased pitch angle adjustment according to claim 1 is characterized in that: The hinge assembly comprises: A support ear fixed to the side of the flip plate; A rotating seat fixedly connected to the fixed plate, having a groove for the ear to be inserted into; The rotating shaft passes through the rotating seat and the supporting ears.

3. The fork clamping gripper with increased pitch angle adjustment according to claim 2 is characterized in that: Limiting pins are radially arranged at both ends of the rotating shaft.

4. The fork clamping gripper with increased pitch angle adjustment according to claim 1 is characterized in that: The flip plate is provided with a first flange seat; The end of the pull rod is provided with a second flange seat; The first flange seat and the second flange seat are connected via detachable bolts.

5. The fork clamping gripper with increased pitch angle adjustment according to claim 1 is characterized in that: The gripper assembly comprises: load-bearing part; A gas cylinder or oil cylinder, whose cylinder body is fixed on the fixed plate, whose output end passes through the fixed plate and the flip plate, and whose end is located in the bearing part; A push plate, which is slidably fitted in the bearing portion; A push rod, one end of which is connected to the push plate, and the other end of which is hinged to the output end.