Boring tool for a locking seat of a civil air defense door

Abstract

The utility model relates to a kind of boring hole frock for locking seat of civil air defence door including base and clamping disc, clamping disc rear end has the clamping part connected with boring machine dog, one end of base is fixedly connected clamping disc, its innovation point lies in: the clamping part outer periphery of clamping disc is round, and the clamping part front end of clamping disc has tool withdrawal hole;Multiple positioning holes that can be matched with locking seat fixing hole are equipped on the base.The processing frock of the utility model not only can reduce the operation intensity of laborer after implementation, shorten processing time, more can improve the accuracy of processing workpiece.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a boring tool for a locking seat of a civil defense door. Background Technology

[0002] The locking seat for air defense doors has a base and a locking hole. It is usually fixed to the door body through the bolt holes on the base. The locking hole on the locking seat is through which the lock cylinder passes to achieve the locking operation.

[0003] Currently, when boring the locking seat for air defense doors, due to its special structural shape, it cannot be directly clamped onto the boring machine. It is necessary to design a tooling that can fix the locking seat so that the roundness and concentricity of the locking hole meet the requirements when the locking seat is in use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a boring tool for locking seats of air-raid shelters with a simple structure and high roundness and concentricity of the machined locking seat workpiece.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A boring tool for a locking seat of a civil defense door includes a base and a clamping plate. The rear end of the clamping plate has a clamping part that connects to the jaws of a boring machine. One end of the base is fixedly connected to the clamping plate. Its innovation lies in the fact that the outer periphery of the clamping part of the clamping plate is circular, and the front end of the clamping part of the clamping plate has a tool retraction hole. The base is provided with a plurality of positioning holes that can match the fixing holes of the locking seat.

[0006] Furthermore, the positioning hole is an oblong hole.

[0007] Furthermore, a detachable counterweight is provided above the clamping part.

[0008] Furthermore, the tool retraction hole on the clamping plate penetrates the clamping part, and the diameter of the tool retraction hole is larger than the diameter of the hole to be bored on the workpiece.

[0009] Furthermore, a stop bar is fixed on one side of the base to facilitate workpiece installation.

[0010] In summary, the advantages of this utility model over traditional methods are as follows: This utility model fixes the clamping part to the jaws of the boring machine, and fixes the base to the positioning holes on the locking seat through positioning holes, so that the workpiece (locking seat for air-raid shelter doors) is fixed on the jaws, and can ensure that the position to be bored is concentric with the center of the jaws. Thus, when boring, the finished product has high precision and the concentricity meets the requirements of the locking seat.

[0011] This invention has a simple structure, is easier for workers to operate, shortens processing time, and improves the accuracy of processed workpieces. Attached Figure Description

[0012] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description taken in conjunction with the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the workpiece (locking seat for air-raid shelter door) being processed in this utility model; Figure 2 yes Figure 1 Top view; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 for Figure 3 A top-down view; The components are: 1. base; 2. clamping plate; 2-1. clamping part; 2-2. tool retraction hole; 1-1. positioning hole; 2-3. counterweight; 1-2. stop bar. Detailed Implementation

[0014] Based on the preferred embodiments of this utility model, and through the following description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

[0015] The present invention will be further described with reference to the following figures: like Figures 1-4 As shown, a boring tool for a locking seat of a civil defense door includes a base 1 and a clamping plate 2. The rear end of the clamping plate 2 has a clamping part 2-1 that is connected to the jaws of a boring machine. One end of the base 1 is fixedly connected to the clamping plate 2. The clamping part 2-1 of the clamping plate 2 has a circular outer periphery and a tool retraction hole 2-2 at the front end. The base 1 is provided with a plurality of 1-1 that can match the fixing holes of the locking seat.

[0016] like Figure 3 , 4 As shown, the positioning hole 1-1 is an oblong hole. This not only allows for adjustment and fixing of the position for workpieces of different sizes (locking seats for air-raid shelters), but also facilitates fixed alignment and reduces operation time.

[0017] like Figure 3 , 4As shown, in order to ensure the balance of the entire workpiece during processing, a detachable counterweight 2-3 is provided above the clamping part 2-1. Similarly, the counterweight 2-3 can be adjusted in size and shape according to the different sizes of the workpieces being processed (locking seats for air-raid shelter doors) in order to ensure smooth and stable processing.

[0018] like Figure 3 , 4 As shown, for easy tool retraction, the tool retraction hole 2-1 on the clamping plate 2 penetrates the clamping part 2-1, and the diameter of the tool retraction hole 2-1 is larger than the diameter of the workpiece to be bored.

[0019] like Figure 3 , 4 As shown, one side of the base 1 is fixed with a stop 1-2 for convenient workpiece installation. Thus, when installing the workpiece, simply push the workpiece to the stop 1-2 for accurate alignment and positioning, making installation convenient and quick.

[0020] After the processing fixture of this utility model is implemented, it can not only reduce the labor intensity of workers and shorten the processing time, but also improve the accuracy of the processed workpiece.

Claims

1. A boring tool for a locking seat of a civil defense door, comprising a base (1) and a clamping plate (2), wherein the rear end of the clamping plate (2) has a clamping part (2-1) connected to the jaws of a boring machine, and one end of the base (1) is fixedly connected to the clamping plate (2), characterized in that: The clamping part (2-1) of the clamping disc (2) has a circular outer periphery, and the front end of the clamping part (2-1) of the clamping disc (2) has a knife retraction hole (2-2); the base (1) is provided with a plurality of positioning holes (1-1) that can match the locking seat fixing hole.

2. The boring tool for a locking seat of a civil defense door according to claim 1, characterized in that, The positioning hole (1-1) is an oblong hole.

3. The boring tool for a locking seat of a civil defense door according to claim 1, characterized in that, A detachable counterweight (2-3) is provided above the clamping part (2-1).

4. The boring tool for a locking seat of a civil defense door according to claim 1, characterized in that, The tool retraction hole (2-2) on the clamping plate (2) penetrates the clamping part (2-1), and the diameter of the tool retraction hole (2-2) is larger than the diameter of the workpiece to be bored.

5. The boring tool for a locking seat of a civil defense door according to claim 1, characterized in that, One side of the base (1) is fixed with a stop bar (1-2) for facilitating workpiece installation.

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