Twist lock clamping mechanism

Abstract

The utility model discloses a twist lock clamping mechanism which comprises at least two clamping jaws which are installed in a front-back opposite mode. Each clamping jaw is driven by a driving cylinder arranged corresponding to the clamping jaw to achieve the action of clamping or loosening, and each driving cylinder is provided with a plurality of driving cylinder connectors and controls the action of the driving cylinder through hydraulic pressure or pneumatic pressure. And the two ends of the two oppositely mounted clamping jaws are respectively guided by a guide mechanism. The design that the driving cylinder drives the clamping jaw is adopted, disassembly and assembly of various types of twist locks are adapted through hydraulic or pneumatic control of the driving cylinder, and quickness and stability of wharf automation equipment for the twist lock disassembly and assembly business process are improved.

Description

Technical Field

[0001] The utility model relates to the field of port automation equipment, and particularly relates to a twist lock clamping mechanism. Background Art

[0002] As Figure 1 shown, a twist lock 1 (also known as a twist lock) for a container includes a lower lock tongue 11 and an upper lock tongue 12. Currently, the automation transformation and construction of container terminals are on the rise. In the automation construction, for the disassembly and assembly work links of container twist locks, some mechanical equipment first uses a cylinder to drive and clamp the twist lock when disassembling and assembling the twist lock, and then rotates to perform the disassembly and assembly operations on the twist lock. However, precisely because most of the twist lock automatic disassembly and assembly jigs currently in operation at global container terminals use cylinders to drive and clamp the twist lock, there are only two states, clamping and loosening, for clamping the twist lock during the disassembly and assembly of the twist lock, and it is impossible to adjust the "spacing" according to the specific type of twist lock. Therefore, for the automatic disassembly and assembly of container twist locks in the port automation operation process, the industry urgently needs a fixture structure that can adapt to the disassembly and assembly of various types of twist locks, so as to improve the speed and stability of the disassembly and assembly operations of twist locks by port automation equipment. Summary of the Invention

[0003] The purpose of the utility model is to provide a twist lock clamping mechanism that can adapt to the disassembly and assembly of various types of twist locks, and improve the speed and stability of the disassembly and assembly operations of twist locks by port automation equipment in order to solve the above problems.

[0004] The purpose of the utility model is achieved as follows:

[0005] A twist lock clamping mechanism of the utility model includes:

[0006] At least two jaws installed in a front-back confrontation form;

[0007] Each of the jaws is driven by a corresponding driving cylinder to perform clamping or loosening actions, and each driving cylinder is provided with a plurality of driving cylinder joints and the actions of the driving cylinder are controlled by hydraulic pressure or air pressure; and

[0008] Both ends of the two confrontation-installed jaws are respectively guided by a guiding mechanism.

[0009] In the above-mentioned twist lock clamping mechanism, a plurality of cushion blocks are arranged on the contact surface where the jaws clamp the twist lock.

[0010] In the above-mentioned twist lock clamping mechanism, each jaw is provided with two cushion blocks.

[0011] In the above-mentioned twist lock clamping mechanism, the driving cylinder is a cylinder or an oil cylinder.

[0012] In the above-mentioned twist-lock clamping mechanism, a directional control solenoid valve is provided on the hydraulic liquid path or the pneumatic air path of each driving cylinder, and the two jaws installed opposite to each other are controlled by the directional control solenoid valve to move towards and away from each other simultaneously.

[0013] In the above-mentioned twist-lock clamping mechanism, a magnetic travel switch is provided on the piston rod of the driving cylinder.

[0014] In the above-mentioned twist-lock clamping mechanism, the guiding mechanism is a guide rail.

[0015] In the above-mentioned twist-lock clamping mechanism, the ends of the jaws on the same side are connected to two sliders on the same guide rail.

[0016] In the above-mentioned twist-lock clamping mechanism, the number of jaws is two.

[0017] In the above-mentioned twist-lock clamping mechanism, elastic wedge blocks are provided at both ends of the jaws. When the jaws clamp the twist lock forward and backward, elastic compression is formed on the twist lock in the left and right directions through the elastic wedge blocks to finely adjust the center position of the twist lock to be consistent with the clamping center of the jaws.

[0018] Another implementation of the twist-lock clamping mechanism of the present utility model includes:

[0019] Two jaws arranged front and back form an opposing structure, and the two jaws are respectively an active jaw and a driven jaw;

[0020] An active arm and a driven arm, wherein the length of the active arm is greater than that of the driven arm. An upper guide rail and a lower guide rail are respectively arranged on the upper and lower surfaces of the active arm and the driven arm along the length direction. The slider of each lower guide rail is connected to the mounting frame. One end of the active jaw is fixedly connected to the upper surface of the active arm, and the other end is connected to the slider of the upper guide rail of the driven arm. One end of the driven jaw is fixedly connected to the upper surface of the rear end of the driven arm, and the other end is connected to the slider of the upper guide rail of the active arm. The upper guide rail and the lower guide rail together constitute a guiding mechanism;

[0021] A jaw driving mechanism mounted on the mounting frame, and the jaw driving mechanism is connected to one end of the active arm;

[0022] A swing rod, a downward-axial rotating shaft penetrates through the middle of the swing rod, the lower end of the rotating shaft is connected to a fixed bracket, and the fixed bracket is fixedly connected to the mounting frame; and

[0023] Two guide sleeves adapted to be installed at the axial two ends of the swing rod, and the other ends of the two guide sleeves are respectively hinged to the active arm and the driven arm. The hinged position of the active arm and the guide sleeve is between the active jaw and the jaw driving mechanism. The hinged position of the driven arm and the guide sleeve is the front end of the driven arm. The axial direction of the hinge shaft of the guide sleeve is the same as the axial direction of the rotating shaft.

[0024] The utility model adopts a design of a hydraulic cylinder driving a jaw, and adapts to the disassembly and assembly of various types of twist locks through the hydraulic or pneumatic control of the driving cylinder, improving the quickness and stability of the quay automation equipment for the operation process of twist lock disassembly and assembly. Brief Description of the Drawings

[0025] Figure 1 is a schematic structural view of a twist lock for a container;

[0026] Figure 2 is a schematic structural view of an implementation manner of the twist lock clamping mechanism of the utility model;

[0027] Figure 3 is a schematic structural view of another implementation manner of the twist lock clamping mechanism of the present invention;

[0028] Figure 4 is Figure 3 a sectional view taken along the line A-A in

[0029] Figure 5 is Figure 3 a sectional view taken along the line B-B in

[0030] Figure 6 is a perspective view of the twist lock clamping mechanism of the present invention. Detailed Description of the Preferred Embodiments

[0031] The following will further illustrate the present utility model in conjunction with the accompanying drawings.

[0032] Please refer to Figure 2 , which shows an implementation manner of the present utility model. The twist lock clamping mechanism 2 includes:

[0033] at least two jaws 21 installed in a front-back confrontation form;

[0034] Furthermore, a plurality of cushion blocks 22 are arranged on the contact surface where the jaw 21 clamps the twist lock 1;

[0035] Each jaw 21 is driven by a corresponding driving cylinder (an oil cylinder 23 in this embodiment) to realize the clamping and loosening actions. In this embodiment, each oil cylinder 23 is provided with a plurality of oil cylinder joints 24 and the action of the oil cylinder 23 is controlled by oil pressure. A magnetic travel switch (not shown in the figure) is arranged on the piston rod of each oil cylinder 23, and the clamping position of the jaw 21 is judged and controlled by the travel signal feedback of the magnetic travel switch;

[0036] Furthermore, both ends of the two confrontation-installed jaws 21 are respectively guided by a guiding mechanism 25. Further, the end of the jaws 21 on the same side is connected to the movable part of the guiding mechanism 25;

[0037] Preferably, the guiding mechanism 25 is a guide rail, and the end parts of the clamping jaws 21 on the same side are respectively connected to two sliders arranged on the guide rail.

[0038] The working process of the twist-lock clamping mechanism 2 is as follows:

[0039] The front and rear clamping jaws 21 are respectively driven by the front and rear oil cylinders 23 (oil cylinders in this embodiment), and the front and rear clamping jaws 21 are driven to move towards and away from each other simultaneously by controlling the reversing solenoid valve, so as to realize the clamping and loosening actions of the dismounting device on the twist lock 1.

[0040] Elastic wedge blocks 26 are respectively arranged at both ends of the clamping jaw 21. When the clamping jaw 21 clamps the twist lock 1 back and forth, the elastic wedge block 26 elastically compresses the twist lock 1 in the left and right directions to finely adjust the center position of the twist lock 1 to be consistent with the clamping center of the clamping jaw 21. Since there are many kinds of shoulder lengths of the twist lock 1, some are long and some are short, and the twist lock 1 may not be placed at the center of the corner fitting in the container corner fitting, but may also be eccentric. Installing the elastic wedge block 26 can adjust the center of the twist lock 1 to be consistent with the center of the clamping jaw 21 to adapt to the adjustment of the shoulder of twist locks 1 of different sizes.

[0041] See Figures 3 - 6 , which shows another implementation manner of the twist-lock clamping mechanism 2 of the present utility model;

[0042] Figure 3 shows the twist-lock clamping mechanism 2 in the initial state and the twist-lock clamping mechanism 2' in the clamping state of this embodiment;

[0043] See Figures 4 - 6 , the twist-lock clamping mechanism 2 also includes at least two clamping jaws 21 installed in a front-back confrontation form; a plurality of cushion blocks 22 are arranged on the contact surface of the clamping jaw 21 for clamping the twist lock 1; each clamping jaw 21 realizes the clamping and loosening actions through the driving of a driving cylinder (a cylinder 23 in this embodiment) arranged corresponding to it; each driving cylinder is provided with a plurality of driving cylinder connectors 23-1 and controls the action of the driving cylinder through oil pressure or air pressure;

[0044] Differing from the foregoing embodiments, the clamping jaws 21 are defined as a driving jaw 21-1 and a driven jaw 21-2, and further include a driving arm 101 and a driven arm 102, wherein the length of the driving arm 101 is greater than that of the driven arm 102. An upper guide rail 103 and a lower guide rail 104 are respectively arranged on the upper and lower surfaces of the driving arm 101 and the driven arm 102 along the length direction. The slider of each lower guide rail 104 is fixedly connected to the mounting frame (not shown in the figure). The upper guide rail 103 and the lower guide rail 104 together constitute a guiding mechanism 25. One end of the driving jaw 21-1 is fixedly connected to the upper surface of the driving arm 101, and the other end is connected to the slider of the upper guide rail 103 of the driven arm 102. One end of the driven jaw 21-2 is fixedly connected to the upper surface of the rear end of the driven arm 102, and the other end is connected to the slider of the upper guide rail 103 of the driving arm 101; further, the clamping jaws 21 and the slider of the upper guide rail 103 are fixedly installed through screws 115 and first washers 116 that cooperate with the screws 115. Further, the screws 115 are socket head cap screws, and the first washers 116 are elastic washers;

[0045] The driving cylinder is connected to one end of the driving arm 101. Further, the output shaft of the driving cylinder is connected to the driving arm 101 through a pin shaft. The pin shaft structure includes a bearing 112, a pin 113 fixedly connected to the output shaft of the driving cylinder, and a first shaft retaining ring 114 for fixing the pin 113. The first shaft retaining ring 114 is preferably a shaft-mounted elastic retaining ring;

[0046] A swing rod 105, a downward-axial rotating shaft 106 is penetrated through the middle of the swing rod. Preferably, the rotating shaft 106 is installed through a bearing 107 penetrated through the swing rod 105. The lower end of the rotating shaft 106 is fixedly connected to a fixed bracket 108, and the fixed bracket 108 is fixedly connected to the mounting frame; further, the upper end of the rotating shaft 106 is fixedly installed through a nut 117 and a second washer 118. More preferably, the second washer 118 is an elastic washer; and

[0047] Two guide sleeves 109 adapted to be installed at the axial two ends of the swing rod 105. Bearings 110 and first hole retaining rings 111 are arranged in the mounting holes of the guide sleeves 109 for the swing rod 105. The other ends of the two guide sleeves 109 are respectively hinged to the driving arm 101 and the driven arm 102. The hinged position of the driving arm 101 and the guide sleeve 109 is between the driving jaw 21-1 and the driving cylinder. The hinged position of the driven arm 102 and the guide sleeve 109 is the front end of the driven arm 102. The axial direction of the hinge shaft of the guide sleeve 109 is the same as the axial direction of the rotating shaft. Further, the guide sleeve 109 is connected to the driving arm 101 and the driven arm 102 through a pin shaft 112. Further, a number of bearings 120 for the pin shaft 112 to penetrate through are respectively arranged in the hinge structures of the guide sleeve 109 and the driving arm 101 and the driven arm 102. The pin shaft 112 is fixed through a second shaft retaining ring 121. Further, the second shaft retaining ring 121 is preferably a shaft-mounted elastic retaining ring.

[0048] The above embodiments are only for illustrating the present utility model and not for limiting the present utility model. Those skilled in the relevant technical field can also make various changes or modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions should also fall within the scope of the present utility model and should be defined by each claim.

Claims

1. A twist lock clamping mechanism, characterized in that: The twist-lock clamping mechanism comprises: At least two gripping jaws mounted in a front-to-rear confrontation configuration; Each of the clamping jaws is driven by a corresponding drive cylinder to achieve a clamping or loosening action, each drive cylinder is provided with a plurality of drive cylinder joints and the action of the drive cylinder is controlled by hydraulic or pneumatic pressure; and Both ends of the two clamping jaws installed opposite to each other are guided by a guiding mechanism respectively.

2. A twist lock clamping mechanism as claimed in claim 1, characterized in that: The contact surface of the clamping jaws clamping the twist lock is provided with a plurality of pads.

3. A twist lock clamping mechanism as claimed in claim 2, characterized in that: Each of the clamping jaws is provided with two pads.

4. A twist lock clamping mechanism as claimed in claim 1, characterized in that: The driving cylinder is a pneumatic cylinder or an oil cylinder.

5. A twist lock clamping mechanism as claimed in claim 1, characterized in that: A reversing solenoid valve is arranged on the hydraulic fluid circuit or the pneumatic air circuit of each driving cylinder, and the reversing solenoid valve is used to control the two clamping jaws installed opposite to each other to move toward and away from each other at the same time.

6. A twist lock clamping mechanism as claimed in claim 1, characterized in that: A magnetic travel switch is arranged on the piston rod of the driving cylinder, and / or the number of the clamping jaws is two.

7. A twist lock clamping mechanism as claimed in claim 1, characterized in that: The guiding mechanism is a guide rail.

8. A twist lock clamping mechanism as claimed in claim 7, characterized in that: The ends of the clamping jaws on the same side are connected to two sliding blocks on the same guide rail.

9. A twist lock clamping mechanism as claimed in claim 1, characterized in that: Elastic wedge blocks are provided at both ends of the clamping jaws. When the clamping jaws clamp the twist lock forward and backward, the elastic wedge blocks exert elastic pressure on the twist lock in the left and right directions to fine-tune the center position of the twist lock to be consistent with the clamping center of the clamping jaws.

10. A twist lock clamping mechanism as claimed in claim 1, characterized in that: The twist-lock clamping mechanism comprises: Two clamping jaws arranged front and back form a confrontation structure, and the two clamping jaws are respectively an active jaw and a driven jaw; A master arm and a slave arm, wherein the master arm is longer than the slave arm, an upper guide rail and a lower guide rail are respectively arranged on the upper and lower surfaces of the master arm and the slave arm along the length direction, and the slider of each lower guide rail is connected to a mounting frame, one end of the master claw is fixedly connected to the upper surface of the master arm, and the other end is connected to the slider of the upper guide rail of the slave arm, one end of the slave claw is fixedly connected to the upper surface of the rear end of the slave arm, and the other end is connected to the slider of the upper guide rail of the master arm, and the upper guide rail and the lower guide rail together constitute the guide mechanism; a gripper driving mechanism mounted on the mounting frame, the gripper driving mechanism being connected to one end of the active arm; A swing rod, a rotating shaft axially downward is passed through the middle of the swing rod, a lower end of the rotating shaft is connected to a fixed bracket, and the fixed bracket is fixedly connected to the mounting frame; and Two guide sleeves are adapted to be installed at both axial ends of the rocker arm, and the other ends of the two guide sleeves are respectively hinged to the active arm and the driven arm. The hinge position of the active arm and the guide sleeve is located between the active claw and the clamping claw driving mechanism, and the hinge position of the driven arm and the guide sleeve is the front end of the driven arm. The axial direction of the hinge shaft of the guide sleeve is consistent with the axial direction of the rotating shaft.

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