Chain type tool magazine for profile boring tools

Abstract

The utility model relates to a chain type tool changer for special-shaped boring tool, including the utility model relates to a chain type tool changer for special-shaped boring tool, including support, guide rail setting along the outer circumferential surface of support, chain setting along guide rail, chain wheel being located on the support and being connected with chain, drive member for driving chain wheel rotation and the link on chain interval fixed for boring tool boring tool fixing mechanism for fixed boring tool, boring tool fixing mechanism includes the support plate fixed on the link, be equipped with two locating post on support plate, the bridge plate of boring tool is equipped with the locating hole matched with locating post, one side of locating hole is equipped with limit slot hole, locating post includes support part and clamping part, support part includes support section and limit section, clamping part is connected in the top of limit section through self -clamping subassembly. Limit section cooperates with limit slot hole and carries out the location to bridge plate, and self -clamping subassembly provides the clamping force of clamping part, and clamping part cooperates with support section and carries out the clamping to bridge plate, thereby carries out the fixation to special-shaped boring tool.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining equipment technology, and in particular to a chain-type tool changer for irregularly shaped boring tools. Background Technology

[0002] Chain-type tool magazines are a common type of tool magazine. They use cylindrical tool holders on chain links to store cutting tools. A motor drives the chain in a cyclical manner to change tools. Due to their large capacity, they are increasingly widely used in CNC machining centers. Conventional tool holders and heads are coaxially designed and stored in cylindrical tool holders. For example, a type of irregular boring tool... Figure 2 As shown, it includes a tool holder, a bridge plate, and a tool head, which are irregularly shaped and cannot be fixed by a cylindrical tool sleeve. Therefore, this utility model proposes a chain-type tool changer for irregularly shaped boring tools. Utility Model Content

[0003] The main objective of this invention is to provide a chain-type tool changer for irregularly shaped boring tools to solve the problems mentioned in the background art.

[0004] This utility model achieves the above-mentioned objective through the following technical solution: a chain-type tool changer for irregularly shaped boring tools, comprising a bracket, a guide rail arranged along the outer circumference of the bracket, a chain arranged along the guide rail, a sprocket mounted on the bracket and connected to the chain, a driving component for driving the sprocket to rotate, and a boring tool fixing mechanism for fixing the boring tool at intervals on the chain links. The boring tool fixing mechanism includes a support plate fixed on the chain links, the support plate having two positioning posts, the boring tool's bridge plate having positioning holes matching the positioning posts, and a limiting slot hole on one side of the positioning hole. The positioning post includes a support part and a clamping part, the support part including a support section and a limiting section, and the clamping part being connected to the top end of the limiting section via a self-clamping assembly.

[0005] Preferably, the top end of the limiting segment is coaxially provided with a guide segment, the clamping part is movably connected to the guide segment, the bottom end of the clamping part is provided with a guide slope along its circumference, the bridge plate is located between the upper end face of the support segment and the lower end face of the clamping part, and the limiting segment is inserted into the limiting slot.

[0006] Preferably, the upper end face of the clamping part is provided with a countersunk hole, the guide section passes through the countersunk hole, the self-clamping assembly includes a spring sleeved on the guide section, the spring is located in the countersunk hole, the top end of the guide section is fixed with a baffle by a nut, the top end of the spring abuts against the baffle, and the spring is in a compressed state.

[0007] Preferably, the height of the limiting segment is smaller than the thickness of the bridge plate.

[0008] The beneficial effects of this utility model are: the positioning post positions the shaped boring bar's bridge plate, thereby achieving the positioning of the shaped boring bar. The positioning post includes a support part for supporting the bridge plate and a clamping part for clamping the bridge plate. The support part includes a support section and a limiting section for providing support and limiting the bridge plate, respectively. The clamping force is provided to the clamping part by the self-clamping assembly, so that the clamping part is clamped on the support section. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a chain-type tool changer structure for irregularly shaped boring tools, as shown in the embodiment.

[0010] Figure 2 This is a schematic diagram of an irregularly shaped boring tool.

[0011] Figure 3 This is a schematic diagram of the positioning column structure.

[0012] The numbers in the diagram represent: 1. Tool holder; 2. Bridge plate; 3. Tool head; 4. Positioning hole; 5. Slot; 6. Bracket; 7. Guide rail; 8. Chain; 9. Sprocket; 10. Boring tool fixing mechanism; 11. Support plate; 12. Positioning pin; 13. Support part; 14. Clamping part; 15. Support section; 16. Limiting section; 17. Self-clamping assembly; 18. Guide section; 19. Guide slope; 20. Countersunk hole; 21. Spring; 22. Baffle. Detailed Implementation

[0013] The present invention will be further described in detail below with reference to specific embodiments.

[0014] Example: This utility model discloses a chain-type tool changer for irregularly shaped boring tools, used for changing boring tools. The structure of the boring tool is as follows: Figure 2 As shown, the tool changer includes a tool holder 1, a bridge plate 2, and a tool head 3. The bridge plate 2 has two positioning holes 4, and one side of each positioning hole 4 is connected to a slot 5 that runs along the length of the bridge plate 2. The structure of the tool changer is as follows: Figure 1 and 3As shown, the device includes a bracket 6, a guide rail 7 arranged along the outer periphery of the bracket 6, a chain 8 arranged along the guide rail 7, a sprocket 9 mounted on the bracket 6 and connected to the chain 8, a servo motor for driving the sprocket 9 to rotate, and a boring tool fixing mechanism 10 fixed at intervals on the chain links of the chain 8 for fixing the boring tool. The boring tool fixing mechanism 10 includes a support plate 11 fixed on the chain links. The support plate 11 is provided with two positioning posts 12. The positioning posts 12 include a support part 13 and a clamping part 14. The support part 13 includes a support section 15 and a limiting section 16. The clamping part 14 is located at the top of the limiting section 16 and is connected to a self-clamping assembly 17 for providing clamping force. When the tool needs to be changed... The tool-changing robotic arm (not shown in the figure) grabs the tool holder 1 of the boring bar and sends the boring bar above the support plate 11, aligning the positioning hole 4 with the positioning post 12. The boring bar is driven downward, and the positioning post 12 passes through the positioning hole 4. When the bridge plate 2 moves to be flush with the limiting section 16, the boring bar is driven to move in the opposite direction to the limiting slot 5, so that the limiting section 16 is engaged in the limiting slot 5, thereby limiting the boring bar. The bridge plate 2 of the boring bar is located between the upper end face of the support section 15 and the lower end face of the clamping part 14. The self-clamping assembly 17 drives the clamping part 14 downward to clamp and fix the bridge plate 2, thereby fixing the boring bar. The tool-changing robotic arm then releases the tool holder 1.

[0015] The top end of the limiting section 16 is coaxially provided with a guide section 18, and the clamping part 14 is movably connected to the guide section 18. The bottom end of the clamping part 14 is provided with a guide slope 19 along its circumference. When the boring tool is driven to move in the opposite direction to the limiting slot 5, the bridge plate 2 pushes the clamping part 14 upward through the guide slope 19, so that the bridge plate 2 enters between the upper end face of the support section 15 and the lower end face of the clamping part 14. The self-clamping assembly 17 provides the clamping force of the clamping part 14 to clamp and fix the bridge plate 2.

[0016] The upper end face of the clamping part 14 is provided with a countersunk hole 20, and the guide section 18 passes through the countersunk hole 20. The self-clamping assembly 17 includes a spring 21 sleeved on the guide section 18. The spring 21 is located in the countersunk hole 20. The top end of the guide section 18 is fixed with a baffle 22 by a nut. The top end of the spring 21 abuts against the baffle 22. The spring 21 is in a compressed state, thereby providing the clamping part 14 with a downward clamping force.

[0017] The height of the limiting section 16 is smaller than the thickness of the bridge plate 2. When the bridge plate 2 is pushed between the limiting section 16 and the clamping part 14, the clamping part 14 is pushed upward, the spring 21 is compressed, and the reaction force of the spring 21 pushes the clamping part 14 downward, thus clamping and fixing the bridge plate 2.

[0018] The above descriptions are merely some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and all such modifications and improvements fall within the protection scope of this utility model.

Claims

1. A chain-type tool changer for irregularly shaped boring tools, characterized in that: The device includes a bracket, a guide rail arranged along the outer periphery of the bracket, a chain arranged along the guide rail, a sprocket mounted on the bracket and connected to the chain, a drive component for driving the sprocket to rotate, and a boring tool fixing mechanism for fixing a boring tool, which is fixed at intervals on the chain links. The boring tool fixing mechanism includes a support plate fixed on the chain links, two positioning posts on the support plate, positioning holes matching the positioning posts on the bridge plate of the boring tool, a limiting slot on one side of the positioning hole, a support post including a support part and a clamping part, the support part including a support section and a limiting section, and the clamping part being connected to the top end of the limiting section via a self-clamping assembly.

2. The chain-type tool changer for irregularly shaped boring tools according to claim 1, characterized in that: The top end of the limiting section is coaxially provided with a guide section, the clamping part is movably connected to the guide section, the bottom end of the clamping part is provided with a guide slope along its circumference, the bridge plate is located between the upper end face of the support section and the lower end face of the clamping part, and the limiting section is inserted into the limiting slot.

3. A chain-type tool changer for irregularly shaped boring tools according to claim 2, characterized in that: The upper end face of the clamping part is provided with a countersunk hole, the guide section passes through the countersunk hole, the self-clamping assembly includes a spring sleeved on the guide section, the spring is located in the countersunk hole, the top end of the guide section is fixed with a baffle by a nut, the top end of the spring abuts against the baffle, and the spring is in a compressed state.

4. A chain-type tool changer for irregularly shaped boring tools according to claim 2, characterized in that: The height of the limiting section is smaller than the thickness of the bridge plate.

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