A tool holder for a numerically controlled grinding machine

Abstract

The utility model relates to the technical field of tool holder, specifically to a tool holder for numerical control grinding machine, include: base, fixed with telescopic pneumatic cylinder on the base, the telescopic pneumatic cylinder output end is fixed with tool holder subassembly through connecting plate, the connecting plate other side is equipped with the lifting assembly that helps connecting plate steady motion, the utility model discloses through the tool holder subassembly lifting driven by telescopic pneumatic cylinder, simultaneously through the linear bearing with low friction, high -precision's guiding function guides, makes the tool holder keep high accuracy and stability when moving along the predetermined path, reduced the position deviation due to mechanical wear, ensure the quality and precision of grinding.

Description

Technical Field

[0001] This utility model belongs to the field of tool holders, specifically relating to a tool holder for CNC grinding machines. Background Technology

[0002] In modern manufacturing, CNC grinding machines, as crucial high-precision machining equipment, are widely used in aerospace, automotive manufacturing, and precision machinery industries. However, the tool holder of traditional CNC grinding machines sometimes suffers from inaccurate tool positioning during machining due to the unstable movement of the tool holder itself, affecting machining accuracy and surface finish. This is especially critical in high-speed, high-precision grinding operations, where the positioning accuracy and motion stability of the tool holder are paramount. Therefore, a tool holder for CNC grinding machines needs to be designed to address these issues. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a tool holder for CNC grinding machines, thereby resolving the issue raised in the background section that the movement of existing tool holders on the market is not stable enough, thus affecting the machining accuracy of workpieces.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A tool holder for a CNC grinding machine includes: a base, on which a telescopic cylinder is fixed, and a tool holder assembly is fixed to the output end of the telescopic cylinder via a connecting plate. A lifting assembly that helps the connecting plate move smoothly is provided on the other side of the connecting plate.

[0006] As a further improvement to this utility model, the lifting assembly includes a guide rod fixedly connected to the connecting plate and a sleeve fixedly connected to the base, wherein the guide rod and the sleeve are vertically slidably connected by a linear bearing.

[0007] As a further improvement to this utility model, the connecting plate is in the shape of a Z, and the height of the connecting plate on the side of the telescopic cylinder is lower than the height of the connecting plate on the side of the lifting assembly.

[0008] As a further improvement to this utility model, the dragging tool assembly includes a boss provided on the connecting plate, and two sets of limiting blocks are provided on the boss. An installation groove is formed between the limiting blocks to facilitate the installation of the support blocks. Most of the support blocks have a placement groove at their top for easy placement of workpieces.

[0009] As a further improvement to this utility model, the base is also provided with a limiting post, which is located below the connecting plate and is higher than the telescopic cylinder.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This invention uses a telescopic cylinder to lift and lower the tool-dragging assembly, while simultaneously using a linear bearing with low friction and high precision to guide it. This ensures that the tool-dragging frame maintains high precision and stability as it moves along a predetermined path, reducing positional deviations caused by mechanical wear and ensuring the quality and precision of the grinding process. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0015] The names represented by the part numbers in the two diagrams above are as follows:

[0016] 1. Base;

[0017] 2. Telescopic cylinder;

[0018] 3. Connecting plate;

[0019] 4. Drag knife assembly; 41. Boss; 42. Limiting block; 43. Mounting slot; 44. Support block; 45. Placement slot;

[0020] 5. Lifting assembly; 51. Guide rod; 52. Sleeve; 53. Linear bearing;

[0021] 6. Limiting post. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] The present invention provides the following embodiments:

[0024] A tool holder for a CNC grinding machine includes: a base 1, on which a telescopic cylinder 2 is fixed; a tool holder assembly 4 is fixed to the output end of the telescopic cylinder 2 via a connecting plate 3; and a lifting assembly 5 is provided on the other side of the connecting plate 3 to facilitate the smooth movement of the connecting plate 3; the telescopic cylinder 2 drives the connecting plate 3 to rise and fall, while the lifting assembly 5 assists the connecting plate 3 in rising and falling smoothly.

[0025] The lifting assembly 5 includes a guide rod 51 fixedly connected to the connecting plate 3 and a sleeve 52 fixedly connected to the base 1. The guide rod 51 and the sleeve 52 are vertically slidably connected by a linear bearing 53. The linear bearing 53 provides a low-friction, high-precision guiding function, which enables the tool holder to maintain high precision and stability when moving along a predetermined path, reduces positional deviation caused by mechanical wear, and ensures the quality and precision of grinding.

[0026] The connecting plate 3 has a Z-shaped structure, and the height of the connecting plate 3 on the side of the telescopic cylinder 2 is lower than the height of the connecting plate 3 on the side of the lifting assembly 5.

[0027] The dragging tool assembly 4 includes a boss 41 on the connecting plate 3. The boss 41 is provided with two sets of limiting blocks 42. An installation groove 43 is formed between the limiting blocks 42 to facilitate the installation of the support block 44. Most of the support blocks 44 have a placement groove 45 at the top to facilitate the placement of the workpiece. The limiting blocks 42 help to install and fix the support block 44.

[0028] The base 1 is also provided with a limiting post 6, which is located below the connecting plate 3 and is higher than the telescopic cylinder 2. The limiting post 6 is provided to prevent the connecting plate 3 from hitting the lifting cylinder and damaging the lifting cylinder.

[0029] This invention uses a telescopic cylinder 2 to lift and lower the drag tool assembly 4, while simultaneously using a linear bearing 53 with low friction and high precision to guide it. This ensures that the drag tool holder maintains high precision and stability as it moves along a predetermined path, reducing positional deviations caused by mechanical wear and ensuring the quality and precision of the grinding process.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tool holder for a CNC grinding machine, characterized in that, include: A base (1) is provided, on which a telescopic cylinder (2) is fixed. The output end of the telescopic cylinder (2) is fixed with a drag knife assembly (4) via a connecting plate (3). A lifting assembly (5) is provided on the other side of the connecting plate (3) to help the connecting plate (3) move smoothly.

2. A tool holder for a CNC grinding machine according to claim 1, characterized in that: The lifting assembly (5) includes a guide rod (51) fixedly connected to the connecting plate (3) and a sleeve (52) fixedly connected to the base (1). The guide rod (51) and the sleeve (52) are vertically slidably connected by a linear bearing (53).

3. A tool holder for a CNC grinding machine according to claim 2, characterized in that: The connecting plate (3) has a Z-shaped structure, and the height of the connecting plate (3) on the side of the telescopic cylinder (2) is lower than the height of the connecting plate (3) on the side of the lifting assembly (5).

4. A tool holder for a CNC grinding machine according to claim 3, characterized in that: The dragging tool assembly (4) includes a boss (41) on the connecting plate (3). The boss (41) is provided with two sets of limiting blocks (42). The limiting blocks (42) form an installation groove (43) between them to facilitate the installation of the support block (44). Most of the support blocks (44) have a placement groove (45) at the top to facilitate the placement of the workpiece.

5. A tool holder for a CNC grinding machine according to claim 4, characterized in that: The base (1) is also provided with a limiting post (6), which is located below the connecting plate (3) and is higher than the telescopic cylinder (2).

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