Semi-automatic demolding tool for subway brake lining

Abstract

The utility model relates to the technical field of subway brake lining production, in particular to a semi-automatic demoulding tool for a subway brake lining, which comprises a screw vibration motor, a ball screw, an ejection block, a base, a concave positioning block and a stop dog, the end, away from the screw vibration motor, of the ball screw is provided with an ejection block, the screw vibration motor is arranged on the base, the concave positioning block is fixedly arranged on the base and located below the ejection block, the check block is installed on the base, a positioning space is formed between the check block and the concave positioning block, and the ball screw is connected with the ejection block through a screw. An annular groove is formed in the ball screw, a threaded hole corresponding to the annular groove in position is formed in the ejection block, a screw extends into the annular groove through the threaded hole to fix the ejection block to the ball screw, and it can be guaranteed that the ejection block and the ball screw move synchronously; the subway brake lining can be effectively prevented from being damaged, the operation is simple, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of subway brake pad production technology, and in particular to a semi-automatic demolding tool for subway brake pads. Background Technology

[0002] Subway brake pads are synthetic material products made from resin powder, rubber, fillers, and skeletons through compression molding. During the demolding process, uneven cooling rates between the internal and external parts cause the product to tightly adhere to the mold, making demolding difficult. As a key component of the subway braking system, the demolding efficiency and quality of subway brake pads directly affect their subsequent usability and safety. Traditional subway brake pad demolding relies heavily on manual operation, resulting in uneven force distribution, low efficiency, and a high risk of product damage. Because subway brake pads are heat-formed, the mold temperature is high, and the mold and parts together have considerable weight, making manual demolding labor-intensive. Existing demolding fixtures, due to uneven force distribution, easily cause cracking, edge chipping, and corner chipping of the subway brake pads, leading to severe damage and low yield. Utility Model Content

[0003] To address the problems mentioned in the background section, this utility model provides a semi-automatic demolding fixture for subway brake pads.

[0004] This utility model discloses the following technical solution: a semi-automatic demolding fixture for subway brake pads, including a screw vibration motor, a ball screw, an ejector block, a base, a recessed positioning block, and a stop block. The screw vibration motor and the ball screw are connected by a thread, and the screw vibration motor drives the ball screw to move linearly. An ejector block is provided at the end of the ball screw away from the screw vibration motor. The screw vibration motor is mounted on the base, the recessed positioning block is fixedly mounted on the base and located below the ejector block, and the stop block is mounted on the base and forms a positioning space with the recessed positioning block.

[0005] Furthermore, the ball screw and the ejector block are connected by screws. The ball screw is provided with an annular groove, and the ejector block is provided with a threaded hole corresponding to the position of the annular groove. The screw extends into the annular groove through the threaded hole to fix the ejector block on the ball screw.

[0006] Furthermore, the recessed positioning block is L-shaped, and the ball screw is connected to the vertical plate thread of the recessed positioning block.

[0007] Furthermore, the ejector block is provided with a groove corresponding to the shape of the subway brake pad, and the recessed positioning block is provided with a groove corresponding to the shape of the mold.

[0008] Furthermore, the stop is mounted on the base by bolts.

[0009] Beneficial effects: Compared with the prior art, the semi-automatic demolding fixture for subway brake pads of this utility model has the following advantages: a screw vibration motor is set on the base, and the screw vibration motor is threadedly connected to a ball screw. The ball screw moves linearly under the action of the screw vibration motor. An ejector block is provided on the ball screw, and a recessed positioning block and a stop block are fixed on the base to position the mold to be demolded. The ball screw drives the ejector block to detach the subway brake pad from the mold. The force is uniform during demolding, which can effectively prevent damage to the subway brake pad. The operation is simple and efficient. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the ball screw of this utility model;

[0012] Figure 3 This is a schematic diagram showing the connection between the ball screw and the ejector block of this utility model;

[0013] Figure 4 This is a partial structural schematic diagram of the present invention;

[0014] In the diagram: 1-Screw vibration motor, 2-Ball screw, 3-Ejector block, 4-Base, 5-Concave positioning block, 6-Stop block, 7-Screw. Detailed Implementation

[0015] like Figures 1 to 4 As shown, a semi-automatic demolding fixture for subway brake pads includes a screw vibration motor 1, a ball screw 2, an ejector block 3, a base 4, a recessed positioning block 5, and a stop block 6. The screw vibration motor 1 and the ball screw 2 are connected by threads. The screw vibration motor 1 drives the ball screw 2 to move linearly, with uniform speed, precise positioning, and the ability to withstand high loads. The ejector block 3 is provided at the end of the ball screw 2 away from the screw vibration motor 1. The screw vibration motor 1 is mounted on the base 4. The recessed positioning block 5 is fixedly mounted on the base 4 and located below the ejector block 3. The stop block 6 is mounted on the base 4 and forms a positioning space with the recessed positioning block 5 for placing the mold to be demolded and the subway brake pad.

[0016] The ball screw and ejector block 3 are connected by screws 7. The ball screw has an annular groove, and the ejector block 3 has a threaded hole corresponding to the position of the annular groove. The screw 7 extends into the annular groove through the threaded hole to fix the ejector block 3 to the ball screw 2, ensuring that the ejector block 3 and the ball screw move synchronously. The recessed positioning block 5 is "L" shaped, and the ball screw 2 and the recessed positioning block 5 are connected by a vertical plate thread, providing support for the ball screw 2 and keeping the ball screw horizontal. The ejector block 3 has a groove corresponding to the shape of the subway brake pad, and the recessed positioning block 5 has a groove corresponding to the shape of the mold. The mold is accurately positioned, so that the ejector block 3 is subjected to uniform force and is not easily damaged when pushing the subway brake pad. The stop block 6 is installed on the base 4 by bolts, which facilitates the adjustment of the distance between the stop block 6 and the recessed positioning block 5 and can be used for demolding molds of different sizes.

[0017] In use, place the mold to be demolded and the subway brake pad between the recessed positioning block 5 and the stop block 6 to ensure accurate mold positioning. At this time, one end of the subway brake pad is located in the groove of the ejector block 3. Start the screw vibration motor 1, and the ball screw 2 rotates to push the ejector block 3 to eject the subway brake pad from the mold. During this process, the ball screw 2 moves at a uniform speed, which can ensure that the force of the ejector block 3 on the subway brake pad is uniform, effectively preventing damage to the subway brake pad, improving the yield, and making the operation simple and efficient.

[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A semi-automatic demolding fixture for subway brake pads, characterized in that: The device includes a screw vibration motor (1), a ball screw (2), an ejector block (3), a base (4), a recessed positioning block (5), and a stop block (6). The screw vibration motor (1) and the ball screw (2) are connected by a thread. The screw vibration motor (1) drives the ball screw (2) to move linearly. The ball screw (2) has an ejector block (3) at one end away from the screw vibration motor (1). The screw vibration motor (1) is mounted on the base (4). The recessed positioning block (5) is fixedly mounted on the base (4) and located below the ejector block (3). The stop block (6) is mounted on the base (4) and forms a positioning space with the recessed positioning block (5).

2. The semi-automatic demolding fixture for subway brake pads according to claim 1, characterized in that: The ball screw (2) and the ejector block (3) are connected by screws (7). The ball screw (2) is provided with an annular groove, and the ejector block (3) is provided with a threaded hole corresponding to the position of the annular groove. The screw (7) extends into the annular groove through the threaded hole to fix the ejector block (3) on the ball screw (2).

3. The semi-automatic demolding fixture for subway brake pads according to claim 1, characterized in that: The recessed positioning block (5) is "L" shaped, and the ball screw (2) is connected to the recessed positioning block (5) in the vertical direction by a plate thread.

4. The semi-automatic demolding fixture for subway brake pads according to claim 1, characterized in that: The ejector block (3) is provided with a groove corresponding to the shape of the subway brake plate, and the recessed positioning block (5) is provided with a groove corresponding to the shape of the mold.

5. The semi-automatic demolding fixture for subway brake pads according to claim 1, characterized in that: The stop (6) is mounted on the base (4) by bolts.

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