Automatic clamping and releasing clamp device

Abstract

The utility model provides an automatic clamping and releasing clamp device, which relates to the technical field of clamps and comprises a hanging ring, two opening and closing arms are rotatably mounted at the bottom of the hanging ring, a clamping arm is rotatably mounted on one side of each opening and closing arm, a supporting arm is mounted on the surface of one side of one opening and closing arm, and the other side of the other opening and closing arm is provided with a clamping arm. A locking pin is installed on the surface of one side of the other opening and closing arm, and an opening and closing conversion plate is rotationally installed on the surface of one side of the supporting arm. The supporting arm and the opening and closing conversion plate are rotationally installed through the third pin shaft and the fifth pin shaft, under the cooperation of the locking pin and the limiting groove, a traveling crane can control the clamp to be automatically clamped and released in the process of controlling the clamp to move up and down, and in the process of clamping, hoisting, moving and separating a workpiece, the clamping and releasing efficiency is greatly improved. And the clamp does not need to be manually operated, so that the safety risk in the hoisting process of the high-temperature workpiece is reduced, the working environment is improved, the working time is shortened, and the processing efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamp technical field, specifically, relate to a kind of clamp device of automatic clamping. BACKGROUND

[0002] In the production process of high-temperature cylindrical workpiece, it needs to be hoisted, and a clamp needs to be used in the hoisting process. For example, a kind of barrel hoisting clamp is provided in the patent with the application number 201820685576.X. The hoisting clamp includes a first hoisting arm and a second hoisting arm, which are connected by a rotating shaft. The upper end of the first hoisting arm is provided with a rotating shaft, one end of which is provided with a rotating disc that can rotate around the rotating shaft. The other end of the rotating shaft is provided with a spring, which is connected perpendicularly to the second hoisting arm. The upper end of the second hoisting arm is extended relative to the upper end of the first hoisting arm, and a lifting ring is connected to the upper end of the second hoisting arm. The inner side of the lower end of the first hoisting arm and the second hoisting arm is provided with a clamping piece. The barrel hoisting clamp provided by the above-mentioned scheme uses a spring device. The compression or stretching of the spring can reduce or increase the angle of the hoisting arm. It can be used for different sizes of barrels. The clamping piece of the barrel hoisting clamp of the above-mentioned scheme is arc-shaped, which can effectively clamp the barrel and reduce the risk of falling.

[0003] The clamp in the above-mentioned scheme still needs to be operated manually during use. It is risky and inefficient to clamp high-temperature workpieces. Therefore, we have improved it and proposed a clamp device that can automatically clamp and place. UTILITY MODEL CONTENTS

[0004] The main purpose of the utility model is to provide a clamp device that can automatically clamp and place, which can effectively solve the problem of manual operation during use of the clamp, high risk and low efficiency when clamping high-temperature workpieces.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A clamp device that can automatically clamp and place includes a lifting ring. Two opening and closing arms are rotatably installed at the bottom of the lifting ring. A clamping arm is rotatably installed on one side of each opening and closing arm. A supporting arm is installed on one side surface of one of the opening and closing arms. A locking pin is installed on one side surface of the other opening and closing arm. An opening and closing conversion plate is rotatably installed on one side surface of the supporting arm.

[0007] As a preferred embodiment, a lifting hole is formed at the top of the lifting ring, and an installation groove is provided at the bottom of the lifting ring.

[0008] As a preferred embodiment, the top of the two opening and closing arms is rotatably installed inside the installation groove by a first pin shaft.

[0009] As preferred, each of the clamping arms is rotatably mounted on one side surface of the opening-closing arm through a fourth pin shaft.

[0010] As preferred, the middle part of the two clamping arms is rotatably connected through a second pin shaft, and one side of the bottom part of each clamping arm is provided with an arc-shaped groove.

[0011] As preferred, the support arm is rotatably mounted on one side surface of one of the opening-closing arms through a third pin shaft, and a locking pin is mounted on one side surface of the other opening-closing arm.

[0012] As preferred, a limiting recess is formed on one side surface of the support arm.

[0013] As preferred, the opening-closing conversion plate is rotatably mounted on one side surface of the support arm through a fifth pin shaft, and a blocking rod is further mounted on one side surface of the support arm.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] Through the rotatable mounting of the support arm and the opening-closing conversion plate through the third pin shaft and the fifth pin shaft, under the cooperation of the locking pin and the limiting recess, the control clamp can be automatically clamped and placed during the up-down movement of the control clamp, manual operation of the clamp is not needed during the clamping, lifting and moving of the workpiece and the separation after the movement, the safety risk in the lifting process of the high-temperature workpiece is reduced, the working environment is improved, the working time is shortened, and the machining efficiency can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a front view of the utility model;

[0018] Figure 3 It is a Figure 1 It is an enlarged view of A in the middle.

[0019] In the drawing: 1, lifting eye; 101, lifting hole; 2, mounting groove; 3, opening-closing arm; 4, clamping arm; 401, arc-shaped groove; 5, first pin shaft; 6, second pin shaft; 7, support arm; 701, third pin shaft; 702, limiting recess; 8, locking pin; 9, fourth pin shaft; 10, opening-closing conversion plate; 11, fifth pin shaft; 12, blocking rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] As shown in Figure 1 , a kind of automatic clamping clamp device, including lifting ring 1, the bottom of lifting ring 1 is rotatably installed with two open arms 3, the side of each open arm 3 is rotatably installed with clamping arm 4, the side surface of one of open arms 3 is installed with support arm 7, the side surface of another open arm 3 is installed with locking pin 8, the side surface of support arm 7 is rotatably installed with open-close conversion plate 10.

[0022] As shown in Figure 1 , Figure 2 , the top of lifting ring 1 is provided with lifting hole 101, the bottom of lifting ring 1 is provided with installation groove 2, the top of two open arms 3 is rotatably installed in the inside of installation groove 2 by first pin shaft 5, each clamping arm 4 is rotatably installed on the side surface of open arm 3 by fourth pin shaft 9, the middle of two clamping arms 4 is rotatably connected by second pin shaft 6, the bottom side of each clamping arm 4 is provided with arc slot 401. Through lifting hole 101, lifting ring 1 is conveniently installed with hook head on trolley, the inside of clamping arm 4 is provided with arc slot 401, which is convenient for clamping cylindrical workpieces.

[0023] As shown in Figure 2 , Figure 3 , support arm 7 is rotatably installed on the side surface of one of open arms 3 by third pin shaft 701, locking pin 8 is installed on the side surface of another open arm 3, limiting groove 702 is formed on the side surface of support arm 7, open-close conversion plate 10 is rotatably installed on the side surface of support arm 7 by fifth pin shaft 11, stop rod 12 is also installed on the side surface of support arm 7.

[0024] Through the rotatable installation of fifth pin shaft 11 to open-close conversion plate 10, under the cooperation of locking pin 8 and limiting groove 702, the clamp can be automatically clamped during the process of controlling the clamp to move up and down on the trolley, avoiding manual operation of the clamp, which is more convenient in use.

[0025] The working principle of the clamp device is as follows:

[0026] When the cylindrical workpiece needs to be hoisted, the lifting ring 1 is hung on the lifting hook head of the crane through the lifting hole 101, the crane retracts the lifting hook head and lifts the entire clamp, the initial state locking pin 8 is located inside the limiting groove 702, the support arm 7 is rotatably installed through the third pin shaft 701, and under the action of gravity and the support arm 7, the clamp is in an open state. Control the clamp to move, when the arc-shaped groove 401 on the inner side of the clamping arm 4 contacts the hoisted object, continue to control the clamp to descend through the crane until the locking pin 8 falls out of the limiting groove 702 on the surface of the support arm 7 and passes through the entire large circular surface of the opening and closing conversion plate 10, at this time the opening and closing conversion plate 10 will rotate to one side of the stop rod 12 under the action of gravity, the opening and closing conversion plate 10 is blocked by the stop rod 12, the locking pin 8 will be located at the end of the opening and closing conversion plate 10 away from the stop rod 12, and then the lifting hook head is controlled to rise by the crane, the two clamping arms 4 at the bottom of the clamp will automatically clamp the hoisted workpiece and lift it up, during the process of clamping and lifting the workpiece, the locking pin 8 will move along the large circular surface of the opening and closing conversion plate 10 as the moving track and move to the end of the opening and closing conversion plate 10 close to the stop rod 12. When the hoisted object is hoisted to the designated position, the crane hook head starts to descend, and the clamp moves downward under the action of the hook head and gravity, realizing automatic opening of the clamp, continue to control the clamp to move downward, the locking pin 8 will push the opening and closing conversion plate 10 to rotate upward, and the locking pin 8 will also enter the inside of the limiting groove 702, at this time stop the hook head from descending, change the movement direction of the hook head to upward, under the joint action of the rotatably arranged support arm 7 and the upward movement of the hook head, the clamp can automatically and safely separate from the hoisted object. During the process of clamping, lifting, moving and separating, manual operation of the clamp is not required, which reduces the safety risk during hoisting of high-temperature workpieces, improves the working environment, shortens the working time, and can effectively improve the processing efficiency.

[0027] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not limitations on the embodiments of the utility model. For ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description, and it is impossible to enumerate all the embodiments here, and any obvious changes or variations derived from the technical solutions of the utility model still fall within the protection scope of the utility model.

Claims

1. An automatic clamping device, comprising a lifting ring (1), characterized in that: The bottom of the lifting ring (1) is rotatably mounted with two opening and closing arms (3). Each opening and closing arm (3) is rotatably mounted with a clamping arm (4) on one side. A support arm (7) is mounted on one side surface of one of the opening and closing arms (3), and a locking pin (8) is mounted on one side surface of the other opening and closing arm (3). An opening and closing conversion plate (10) is rotatably mounted on one side surface of the support arm (7).

2. The automatic clamping device according to claim 1, characterized in that: The top of the lifting ring (1) is provided with a lifting hole (101), and the bottom of the lifting ring (1) is provided with a mounting groove (2).

3. The automatic clamping device according to claim 2, characterized in that: The tops of the two opening and closing arms (3) are rotatably mounted inside the mounting slot (2) via the first pin (5).

4. The automatic clamping device according to claim 1, characterized in that: Each of the clamping arms (4) is rotatably mounted on one side surface of the opening and closing arm (3) via a fourth pin (9).

5. The automatic clamping device according to claim 1, characterized in that: The two clamping arms (4) are rotatably connected in the middle by a second pin (6), and an arc groove (401) is provided on one side of the bottom of each clamping arm (4).

6. The automatic clamping device according to claim 1, characterized in that: The support arm (7) is rotatably mounted on one side surface of one of the opening and closing arms (3) via a third pin (701), and a locking pin (8) is mounted on one side surface of the other opening and closing arm (3).

7. The automatic clamping device according to claim 1, characterized in that: A limiting groove (702) is provided on one side surface of the support arm (7).

8. The automatic clamping device according to claim 1, characterized in that: The opening and closing conversion plate (10) is rotatably mounted on one side surface of the support arm (7) via the fifth pin (11), and a stop bar (12) is also mounted on one side surface of the support arm (7).

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