Composite board broach

Abstract

The utility model relates to the technical field of composite board machining, and discloses a composite board broach which comprises a broach rod, a blade block is fixedly installed on the upper surface of the broach rod, a hollow column is fixedly installed at the right end of the broach rod, a rectangular groove and a clamping opening are formed in the inner wall of the hollow column, and the rectangular groove and the clamping opening are arranged in a penetrating mode. A solid column is arranged on the inner wall of the hollow column in a sliding mode, a pull ring is fixedly installed at the end, away from the hollow column, of the solid column, and the solid column and the hollow column are installed through a connecting assembly. The bottom face of the cutter bar is provided with a groove, the front face of the cutter bar is provided with a first ventilation groove, and the back face of the guide rod is provided with a second ventilation groove. And the blade block is made of a hard alloy material. And a clamping column is fixedly mounted at the left end of the solid column. The clamping blocks are extruded until the clamping blocks move into the rectangular grooves and are completely separated from the bayonets, and at the moment, the cutter bar is drawn outwards, so that the dismounting work can be smoothly completed, and the operation is extremely convenient.

Description

Technical Field

[0001] This utility model relates to the field of composite board processing technology, specifically a composite board broach. Background Technology

[0002] In the field of machining, composite plates, due to their multi-layered material composite characteristics (such as metal-metal and metal-non-metal laminates), place higher demands on the precision, wear resistance, and disassembly and maintainability of machining tools. Currently, the connection between traditional broaches and tool holders generally adopts an integrated structure or a fixed threaded connection. This exposes significant disassembly and maintenance defects when machining composite plates: the connection structure is cumbersome to disassemble. Traditional broaches are mostly connected to the tool holder via interference fits or multiple sets of bolts, requiring the use of wrenches, hammers, and other tools for hammering or tightening during disassembly, making the operation complex, time-consuming, and labor-intensive. For example, broaches with threaded connections require the removal of each positioning bolt, while integrated structures may even require heating or destructive methods to separate, severely impacting machining efficiency.

[0003] To address this issue, we propose a composite board broach. Utility Model Content

[0004] The purpose of this invention is to provide a composite plate broach that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a composite plate broach, comprising a broach bar, a broach block fixedly mounted on the upper surface of the broach bar, a hollow column fixedly mounted on the right end of the broach bar, the inner wall of the hollow column having a rectangular groove and a bayonet, the rectangular groove and the bayonet being connected, a solid column slidably mounted on the inner wall of the hollow column, a pull ring fixedly mounted on the end of the solid column away from the hollow column, and the solid column and the hollow column being connected by a connecting assembly.

[0006] Preferably, the bottom surface of the tool holder has a groove, the front surface of the tool holder has a first ventilation groove, and the back surface of the tool holder has a second ventilation groove. The groove, the first ventilation groove, and the second ventilation groove facilitate airflow during operation, which helps to dissipate heat.

[0007] Preferably, the blade block is made of cemented carbide.

[0008] Preferably, a locking post is fixedly installed at the left end of the solid column, and a rubber sleeve is fitted on the outer wall of the locking post. The rubber sleeve is fixedly installed in a cylindrical groove opened on the inner wall of the hollow column, and the installed rubber sleeve can enhance the clamping tightness.

[0009] Preferably, the outer wall of the pull ring is fixedly fitted with a sponge sleeve, which makes it comfortable for workers to hold.

[0010] Preferably, the connecting component includes a locking block, which is engaged with a locking slot. A connecting post is fixedly installed on the bottom surface of the locking block. A short post is slidably fitted onto the outer wall of the connecting post. One end of the short post is fixedly installed onto the outer wall of the solid post. A spring is provided inside the short post. One end of the spring is fixedly installed onto the inner wall of the short post, and the other end of the spring is fixedly installed onto the end of the connecting post away from the locking block.

[0011] Preferably, a limiting block is slidably provided on the inner wall of the short column, and the limiting block is fixedly sleeved on the outer wall of the connecting column. The limiting block can prevent the connecting column from separating from the short column and can play a certain limiting role.

[0012] This invention provides a composite plate broach. The composite plate broach has the following advantages:

[0013] This composite board broach uses a squeezing block to move it into the rectangular groove and completely disengage it from the bayonet. At this point, the tool bar can be pulled outwards to complete the disassembly process smoothly, which is extremely convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a composite plate broach according to the present invention;

[0015] Figure 2 This utility model relates to a composite plate broach. Figure 1 A schematic diagram of the rear view structure;

[0016] Figure 3 This is an exploded structural diagram of the hollow and solid columns in a composite plate broach of this utility model;

[0017] Figure 4 This is a schematic cross-sectional view of the hollow column structure in a composite plate broach of this utility model;

[0018] Figure 5 This is a schematic cross-sectional view of the short column structure in a composite plate broach of this utility model.

[0019] In the diagram: 1. Blade holder; 2. Groove; 3. First ventilation slot; 4. Blade block; 5. Hollow column; 6. Solid column; 7. Pull ring; 8. Sponge sleeve; 9. Second ventilation slot; 10. Rectangular slot; 11. Bayonet; 12. Locking post; 13. Rubber sleeve; 14. Short post; 15. Locking block; 16. Connecting post; 17. Spring; 18. Limiting block. Detailed Implementation

[0020] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0021] like Figure 1-5 As shown, this utility model provides a technical solution: a composite plate broach, including a broach 1. The bottom surface of the broach 1 has a groove 2, the front surface of the broach 1 has a first ventilation groove 3, and the back surface of the broach 1 has a second ventilation groove 9. The groove 2, the first ventilation groove 3, and the second ventilation groove 9 facilitate airflow during operation, thus promoting heat dissipation. A blade block 4 made of hard alloy is fixedly installed on the upper surface of the broach 1. A hollow column 5 is fixedly installed at the right end of the broach 1, and the inner wall of the hollow column 5 has a rectangular groove 10. The rectangular groove 10 is connected to the bayonet 11. A solid column 6 is slidably mounted on the inner wall of the hollow column 5. A pull ring 7 is fixedly installed at the end of the solid column 6 away from the hollow column 5. A sponge sleeve 8 is fixedly fitted on the outer wall of the pull ring 7. The sponge sleeve 8 makes it comfortable for the worker to hold. The solid column 6 and the hollow column 5 are installed through a connecting component. A locking column 12 is fixedly installed on the left end of the solid column 6. A rubber sleeve 13 is fitted on the outer wall of the locking column 12. The rubber sleeve 13 is fixedly installed in the cylindrical groove opened on the inner wall of the hollow column 5. The installation of the rubber sleeve 13 can enhance the locking tightness.

[0022] The connecting component includes a locking block 15, which is engaged with a bayonet 11. A connecting post 16 is fixedly installed on the bottom surface of the locking block 15. A short post 14 is slidably fitted onto the outer wall of the connecting post 16. One end of the short post 14 is fixedly installed onto the outer wall of the solid post 6. A spring 17 is installed inside the short post 14. One end of the spring 17 is fixedly installed onto the inner wall of the short post 14, and the other end of the spring 17 is fixedly installed onto the end of the connecting post 16 away from the locking block 15. A limiting block 18 is slidably installed on the inner wall of the short post 14. The limiting block 18 is fixedly fitted onto the outer wall of the connecting post 16. The limiting block 18 can prevent the connecting post 16 from separating from the short post 14 and can play a certain limiting role.

[0023] When using this composite plate broach, first, prepare a suitable cylindrical tool (such as a pin or a special pressure bar) and align it with the outer pressure application area of ​​the locking block 15. Next, apply axial pressure evenly to the locking block 15, causing it to overcome elastic resistance and move along the guide structure into the rectangular groove 10. During this process, the wedge-shaped inclined surface of the locking block 15 gradually separates from the inner wall of the bayonet 11 until it is completely disengaged from the locking range of the bayonet 11, and finally embeds into the predetermined position of the rectangular groove 10.

[0024] Once the locking block 15 is fully disengaged from the bayonet 11, hold the tail of the tool holder 1 firmly with one hand and pull the tool holder 1 outward at a constant speed along the axial direction with the other hand. Since the locking block 15 has been released from the locked state, the mechanical limit between the tool holder 1 and the main structure is released, and it can be smoothly removed from the mounting hole. The entire disassembly process does not require complicated tools or additional auxiliary operations.

[0025] This design achieves an efficient disassembly process of "squeezing to unlock and smoothly extracting" through the single-point force application of the cylindrical tool and the mechanical interlocking structure of the block and slot. It avoids the component wear or operation jamming problems that may be caused by traditional threaded connections or snap-fit ​​structures, and significantly improves the convenience and reliability of tool maintenance. It is especially suitable for machining scenarios that require frequent tool holder replacement.

[0026] The above description is merely an illustrative embodiment of this utility model and is not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model. Furthermore, it should be noted that the components of this utility model are not limited to the overall application described above. Each technical feature described in the specification of this utility model can be used individually or in combination as needed. Therefore, this utility model naturally covers other combinations and specific applications related to the points of this utility model.

Claims

1. A composite plate broach, comprising a broach shank (1), characterized in that: A blade block (4) is fixedly installed on the upper surface of the blade holder (1). A hollow column (5) is fixedly installed at the right end of the blade holder (1). The inner wall of the hollow column (5) has a rectangular groove (10) and a bayonet (11). The rectangular groove (10) and the bayonet (11) are connected. A solid column (6) is slidably installed on the inner wall of the hollow column (5). A pull ring (7) is fixedly installed at the end of the solid column (6) away from the hollow column (5). The solid column (6) and the hollow column (5) are connected by a connecting component.

2. The composite plate broach according to claim 1, characterized in that: The bottom surface of the tool holder (1) has a groove (2), the front surface of the tool holder (1) has a first ventilation groove (3), and the back surface of the tool holder (1) has a second ventilation groove (9).

3. The composite plate broach according to claim 1, characterized in that: The blade block (4) is made of cemented carbide.

4. A composite plate broach according to claim 1, characterized in that: A locking post (12) is fixedly installed on the left end of the solid column (6). A rubber sleeve (13) is fitted on the outer wall of the locking post (12). The rubber sleeve (13) is fixedly installed with the cylindrical groove opened on the inner wall of the hollow column (5).

5. A composite plate broach according to claim 1, characterized in that: The outer wall of the pull ring (7) is fixedly fitted with a sponge sleeve (8).

6. A composite plate broach according to claim 1, characterized in that: The connecting component includes a locking block (15), which is engaged with a locking slot (11). A connecting post (16) is fixedly installed on the bottom surface of the locking block (15). A short post (14) is slidably fitted on the outer wall of the connecting post (16). One end of the short post (14) is fixedly installed on the outer wall of the solid post (6). A spring (17) is provided inside the short post (14). One end of the spring (17) is fixedly installed on the inner wall of the short post (14), and the other end of the spring (17) is fixedly installed on the end of the connecting post (16) away from the locking block (15).

7. A composite plate broach according to claim 6, characterized in that: The inner wall of the short column (14) is provided with a limiting block (18), which is fixedly sleeved on the outer wall of the connecting column (16).

Images