A quick locking mechanism for facilitating automatic dismounting of a mold cover

Abstract

The utility model discloses a quick lock mechanism convenient to automatic disassembly mould cover body, including locking body, locking lever, locking ring and lock ball, when mould cover body locking, through rotating the locking lever, through the conical locating surface of its front end lateral wall and push each lock ball radially outward, make quick lock mechanism pass through each lock ball and mould body mouth department flange axial location, then rotate the locking ring, the locking ring forward mould cover body and mould body mouth department flange clamping fixed, when mould cover body disassembly, rotate the locking lever, make it move backward, let each lock ball radial retraction's passage, at this moment can take out quick lock mechanism from the connecting hole of mould cover body and mould body mouth department flange.

Description

Technical Field

[0001] This utility model belongs to the field of casting propellants, specifically relating to a quick-locking mechanism that facilitates the automatic disassembly of the mold cover. Background Technology

[0002] Cast-type modified double-base propellants possess unique technical characteristics such as low signal intensity, low pressure index, and minimal nozzle deposition, along with advantages including high energy, excellent mechanical properties, and stable processing performance. They are particularly suitable for precision-guided weapons and equipment, including those guided by lasers, infrared, and image-guided systems. Granular casting is one of the core processes in the manufacture of cast-type modified double-base propellants. After the propellant grains have solidified at low temperatures, the upper (lower) cover of the mold needs to be disassembled to clean the internal nitroglycerin mixture. Currently, the upper (lower) cover of the mold is secured to the flange at the mold body opening with screws. Disassembling the upper cover requires manual removal of the screws using an Allen wrench, which exposes personnel to a hazardous environment for an extended period, posing a high safety risk.

[0003] To address the issues of manual disassembly of the upper and lower covers during the cleaning process of molds, resulting in prolonged exposure time for personnel, research was conducted on automated oil removal for granular casting molds. Key technologies such as automated cleaning of nitroglycerin mixtures were developed, and a human-machine isolation cleaning process for nitroglycerin casting solutions in propellant molds was established. This reduces safety risks during the oil removal process and improves the inherent safety level of production lines for cast modified double-base propellants.

[0004] Therefore, it is necessary to provide a quick-locking structure that facilitates the disassembly of the upper (lower) cover of the mold, enabling the rapid disassembly of the upper (lower) cover of the mold during the automatic oil cleaning process of the robot, thereby further improving the automation and safety of the oil cleaning process. Utility Model Content

[0005] The purpose of this invention is to provide a quick-locking mechanism that facilitates the automatic disassembly of the mold cover, enabling robots to quickly disassemble the upper (lower) cover of the mold during the automatic oil cleaning process. This directly solves the problem of manually disassembling the top cover screws during the oil cleaning process, thereby improving the automation and safety threshold of the granulation casting oil cleaning process.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] This utility model provides a quick-locking mechanism for easy automatic disassembly of a mold cover, comprising a locking body, a locking rod, a locking ring, and a locking ball;

[0008] The locking body is a cylindrical part with a locking rod connecting hole in the center. The middle part of the locking rod connecting hole is machined with a connecting thread. The front side wall of the locking body has a set of circumferentially distributed locking ball positioning holes. The rear outer wall of the locking body is machined with a connecting thread.

[0009] The locking rod is a rod-shaped component with a diameter matching the diameter of the locking rod connection hole of the locking body, and the front end side wall of the locking rod is machined into a tapered positioning surface;

[0010] The inner wall of the locking ring is machined with connecting threads that match the outer wall of the rear end of the locking body;

[0011] The locking rod is inserted into the locking rod connection hole of the locking body. Each locking ball is installed in the locking ball positioning hole of the locking body. The locking ring is threaded to the outer wall of the rear end of the locking rod. By rotating the locking rod, it moves axially relative to the locking body. The locking rod pushes each locking ball radially outward through the tapered positioning surface of the front side wall.

[0012] The locking rod has a tightening handle on its rear side wall.

[0013] The sidewall shape of the locking body matches the inner shape of the flange connection hole between the mold cover and the mold body.

[0014] Work process

[0015] When the mold cover is locked, the front end of the locking body passes through the connection hole between the mold cover and the mold body flange. By rotating the locking rod, the locking rod moves axially forward relative to the locking body. During the forward movement, the locking rod pushes each locking ball radially outward through the tapered positioning surface of its front sidewall, so that the quick-locking mechanism is axially limited by each locking ball and the mold body flange. Then, the locking ring is rotated, so that the locking ring moves axially forward relative to the locking body. The locking ring clamps and fixes the mold cover and the mold body flange together.

[0016] When disassembling the mold cover, rotate the locking rod to move it axially backward relative to the locking body. During the backward movement, the locking rod opens the channel for the radial retraction of each locking ball. At this time, the quick-locking mechanism can be removed from the connection hole between the mold cover and the flange at the opening of the mold body.

[0017] Beneficial effects:

[0018] The quick-lock structure of this utility model can realize the rapid assembly and disassembly of the upper (lower) cover and flange of the mold. It can also loosen the internal ball lock by rotating the locking rod of the quick-lock structure through the robot, so as to realize the automated operation of rapid robot disassembly, further promote safe production, improve production efficiency, and is suitable for development and promotion. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the quick-lock mechanism of this utility model;

[0020] Figure 2This is a diagram showing the usage state of the quick-lock mechanism of this utility model;

[0021] In the diagram, 1-locking rod, 2-locking gear, 3-ball lock shaft, 4-locking ball, 5-mold cover, 6-mold body opening flange. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Example

[0024] like Figure 1 As shown, the present invention provides a quick-locking mechanism for easy automatic disassembly of a mold cover, comprising a locking body 3, a locking rod 1, a locking ring 2, and a locking ball 4;

[0025] The locking body 3 is a cylindrical part with a locking rod connecting hole in the center. The locking rod connecting hole has a connecting thread in the middle. The front side wall of the locking body 3 has a set of circumferentially distributed locking ball positioning holes. The rear outer wall of the locking body 3 has a connecting thread.

[0026] The locking rod 1 is a rod-shaped component with a diameter matching the diameter of the locking rod connection hole of the locking body 3, and the front end side wall of the locking rod 1 is machined into a tapered positioning surface;

[0027] The inner wall of the locking ring 2 is machined with connecting threads that match the outer wall of the rear end of the locking body 3;

[0028] The locking rod 1 is inserted into the locking rod connection hole of the locking body 3. Each locking ball 4 is installed in the locking ball positioning hole of the locking body 3. The locking ring 2 is threaded to the outer wall of the rear end of the locking rod 1. By rotating the locking rod 1, it moves axially relative to the locking body 3. The locking rod 1 pushes each locking ball 4 to extend radially outward through the tapered positioning surface of the front side wall.

[0029] The rear side wall of the locking rod 1 is provided with a tightening handle.

[0030] The side wall shape of the locking body 3 matches the inner shape of the connection hole between the mold cover 5 and the flange 6 at the opening of the mold body.

[0031] Figure 2 This is a diagram showing the usage state of the quick-lock mechanism of this utility model;

[0032] When the mold cover 5 is locked, the front end of the locking body 3 passes through the connection hole between the mold cover 5 and the mold body flange 6. By rotating the locking rod 1, the locking rod 1 moves forward axially relative to the locking body 3. During the forward movement, the locking rod 1 pushes each locking ball 4 radially outward through the tapered positioning surface of its front end sidewall, so that the quick-locking mechanism is axially limited by each locking ball 4 and the mold body flange 6. Then, the locking ring 2 is rotated, so that the locking ring 2 moves forward axially relative to the locking body 3. The locking ring 2 clamps and fixes the mold cover 5 and the mold body flange 6 forward.

[0033] When disassembling the mold cover 5, rotate the locking rod 1 to move the locking rod 1 axially backward relative to the locking body 3. During the forward movement of the locking rod 1, it opens the channel for the radial retraction of each locking ball 4. At this time, the quick-locking mechanism can be removed from the connection hole between the mold cover 5 and the flange 6 at the opening of the mold body.

Claims

1. A quick-locking mechanism for easy automatic disassembly of a mold cover, characterized in that, Includes locking body, locking rod, locking ring, and locking ball; The locking body is a cylindrical part with a locking rod connecting hole in the center. The middle part of the locking rod connecting hole is machined with a connecting thread. The front side wall of the locking body has a set of circumferentially distributed locking ball positioning holes. The rear outer wall of the locking body is machined with a connecting thread. The locking rod is a rod-shaped component with a diameter matching the diameter of the locking rod connection hole of the locking body, and the front end side wall of the locking rod is machined into a tapered positioning surface; The inner wall of the locking ring is machined with connecting threads that match the outer wall of the rear end of the locking body; The locking rod is inserted into the locking rod connection hole of the locking body. Each locking ball is installed in the locking ball positioning hole of the locking body. The locking ring is threaded to the outer wall of the rear end of the locking rod. By rotating the locking rod, it moves axially relative to the locking body. The locking rod pushes each locking ball radially outward through the tapered positioning surface of the front side wall.

2. The quick-locking mechanism for easy automatic disassembly of the mold cover as described in claim 1, characterized in that, The locking rod has a tightening handle on its rear side wall.

3. The quick-locking mechanism for easy automatic disassembly of the mold cover as described in claim 1, characterized in that, The sidewall shape of the locking body matches the inner shape of the flange connection hole between the mold cover and the mold body.

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