Grinding machine main shaft knife rest

Abstract

The utility model relates to the technical field of main shaft knife rests, in particular to a grinding machine main shaft knife rest. A rotating shaft is rotationally connected in an opening in the bottom end of a main frame body, a knife body is arranged on the inner wall of the rotating shaft in a sliding mode, and a plurality of sets of fixing grooves are formed in the outer wall of the knife body. The inner walls of the first slideway and the second slideway are fixedly connected with elastic elements, one end of each elastic element is fixedly connected with a control rod, and when the tool body needs to be disassembled, only the control rods on the inner walls of the first slideway and the second slideway need to be pulled outwards at the same time, so that the elastic elements are tensioned, and the control rods drive the middle connecting plate to move; the arc-shaped clamping plate is driven to be separated from the inner wall of the fixing groove through the middle connecting plate, then the cutter body can be detached, the arc-shaped clamping plate is driven to be clamped to the inner wall of the fixing groove again through the acting force of the elastic element, operation is convenient, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of spindle tool holders, in particular to a grinding machine spindle tool holder. Background Art

[0002] The grinding machine spindle tool holder is the core component of a grinding machine, mainly used for fixing the tool and driving it to rotate to achieve the grinding process of the workpiece surface. The grinding machine spindle tool holder is an important part of the grinding machine, and its design and technical characteristics have an important impact on the machining accuracy and efficiency of the grinding machine. By continuously optimizing the design and improving the technical level, the machining quality and efficiency of the grinding machine can be further improved. However, generally, multiple groups of bolts are required to fasten the existing grinding machine spindle tool holder and the tool, making the installation and disassembly operations cumbersome and time-consuming, thus affecting the working efficiency of the grinding machine and having poor practicability.

[0003] In view of the above problems, the utility model proposes a grinding machine spindle tool holder. Content of the Utility Model

[0004] The purpose of the utility model is to provide a grinding machine spindle tool holder. A rotating shaft is rotatably connected inside the bottom opening of the main frame body, a tool body is slidably arranged on the inner wall of the rotating shaft, multiple fixing grooves are formed on the outer wall of the tool body, a first slideway and a second slideway are formed at the bottom of the main frame body, elastic elements are fixedly connected to the inner walls of the first slideway and the second slideway, and a control rod is fixedly connected to one end of each elastic element, thereby solving the problems in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a grinding machine spindle tool holder, including an upper mounting frame installed on the grinding machine, a main frame body is installed at the lower end of the upper mounting frame, a rotating shaft is rotatably connected inside the bottom opening of the main frame body, a tool body is slidably arranged on the inner wall of the rotating shaft, multiple fixing grooves are formed on the outer wall of the tool body, a first slideway and a second slideway are formed at the bottom of the main frame body, elastic elements are fixedly connected to the inner walls of the first slideway and the second slideway, and a control rod is fixedly connected to one end of each elastic element;

[0006] The upper end of the control rod is fixedly connected with a middle connecting plate, one end of the middle connecting plate away from the control rod is connected with an arc-shaped clamping plate, and a roller is installed on the inner wall of the arc-shaped clamping plate. The arc-shaped clamping plate is used for clamping on the inner wall of the fixing groove.

[0007] Furthermore, the first slideway and the second slideway are symmetrically distributed about the center of the tool body.

[0008] Furthermore, when the arc-shaped clamping plate clamps on the inner wall of the fixing groove, the elastic element is in a relaxed state.

[0009] Furthermore, the control rod is slidably connected to the inner walls of the first slideway and the second slideway.

[0010] Furthermore, a connecting groove is provided at the lower end of the control rod, a threaded rod is threadedly connected to the inner wall of the connecting groove, a lower connecting block is fixedly connected to the lower end of the threaded rod, and a clamping block is installed on the upper wall of the lower connecting block.

[0011] Furthermore, the abutment blocks are provided in two groups, and the two groups of abutment blocks are symmetrically distributed about the center of the lower connecting block.

[0012] Furthermore, the pressing block is a component made of rubber material, and the pressing block is pressed against the lower wall of the rotating shaft, and the interior of the pressing block is a hollow structure, which is elastic and deformable.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model provides a spindle tool holder for a grinding machine. When the tool body needs to be disassembled, it is only necessary to pull the control rods of the inner walls of the first slide and the second slide at the same time to make the elastic element continue to be tightened, and the control rod is used to drive the middle plate to move, and the middle plate is used to drive the arc clamping plate to separate from the inner wall of the fixed groove. At this time, the tool body can be removed, and the installation only needs to use the force of the elastic element to drive the arc clamping plate to engage the inner wall of the fixed groove again. The operation is convenient and the practicability is strong. It solves the problem that the existing spindle tool holder and the tool of the grinding machine generally need multiple sets of bolts for fastening, which makes the installation and disassembly operations more cumbersome and takes too long, thereby affecting the working efficiency of the grinding machine and the problem of poor practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall planar structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the rotating shaft of the utility model;

[0018] Figure 4 For the utility model Figure 3 A is an enlarged structural diagram of FIG.

[0019] In the figure: 1. upper mounting frame; 2. main frame body; 3. rotating shaft; 4. tool body; 5. fixing groove; 6. first slideway; 7. second slideway; 8. elastic element; 9. control rod; 10. middle connecting plate; 11. arc-shaped clamping plate; 12. connecting groove; 13. threaded rod; 14. lower connecting block; 15. tight block. DETAILED DESCRIPTION

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1-4 , in order to solve the problem that the existing grinding machine spindle tool holder is cumbersome in the operation of installing and disassembling the tool, which takes too much time, thus affecting the working efficiency of the grinding machine and having poor practicability, the following preferred technical solutions are provided:

[0022] A grinding machine spindle tool holder includes an upper mounting frame 1 installed on the grinding machine. A main frame body 2 is installed at the lower end of the upper mounting frame 1. A rotating shaft 3 is rotatably connected inside the bottom opening of the main frame body 2. A tool body 4 is slidably arranged on the inner wall of the rotating shaft 3. Corresponding clamping blocks and clamping grooves are provided on the inner wall of the rotating shaft 3 and the tool body 4. The clamping grooves are arranged along the length direction of the tool body 4. The tool body 4 slides on the inner wall of the rotating shaft 3 through the limiting and guiding of the clamping blocks and the clamping grooves. The rotating shaft 3 and the tool body 4 are engaged by the clamping blocks and the clamping grooves, so that the rotating shaft 3 stably drives the tool body 4 to rotate. A plurality of fixing grooves 5 are opened on the outer wall of the tool body 4. The bottom of the main frame body 2 is provided with a first slideway 6 and a second slideway 7. Elastic elements 8 are fixedly connected to the inner walls of both the first slideway 6 and the second slideway 7. One end of the elastic element 8 is fixedly connected to a control rod 9. The upper end of the control rod 9 is fixedly connected to an intermediate connecting plate 10. One end of the intermediate connecting plate 10 away from the control rod 9 is connected to an arc-shaped clamping plate 11. A roller is installed on the inner wall of the arc-shaped clamping plate 11. The arc-shaped clamping plate 11 is used to be clamped on the inner wall of the fixing groove 5, and the normal rotation of the tool body 4 is not affected through the cooperation of the roller.

[0023] The first slideway 6 and the second slideway 7 are symmetrically distributed about the center of the tool body 4. When the arc-shaped clamping plate 11 is clamped on the inner wall of the fixing groove 5, the elastic element 8 is in a relaxed state, and the control rod 9 is slidably connected to the inner walls of the first slideway 6 and the second slideway 7.

[0024] A connecting groove 12 is opened at the lower end of the control rod 9. A threaded rod 13 is threadedly connected to the inner wall of the connecting groove 12. The lower end of the threaded rod 13 is fixedly connected to a lower connecting block 14. A pressing block 15 is installed on the upper wall of the lower connecting block 14. There are two groups of pressing blocks 15, and the two groups of pressing blocks 15 are symmetrically distributed about the center of the lower connecting block 14. The pressing block 15 is a component made of rubber material, and the pressing block 15 is attached to the lower wall of the rotating shaft 3. The inside of the pressing block 15 is a hollow structure, which is elastic and deformable.

[0025] Specifically, when the tool body 4 is in the installed state, the arc-shaped clamping plate 11 is clamped on the inner wall of the fixing groove 5, and the elastic element 8 is in a tensioned state. When the tool body 4 needs to be disassembled, only the control rods 9 on the inner walls of the first slideway 6 and the second slideway 7 need to be pulled outwards simultaneously, so that the elastic element 8 is tightened. The control rod 9 is used to drive the middle connecting plate 10 to move, and the arc-shaped clamping plate 11 is driven by the middle connecting plate 10 to disengage from the inner wall of the fixing groove 5. At this time, the tool body 4 can be removed. For installation, only by using the acting force of the elastic element 8, the arc-shaped clamping plate 11 can be driven to be clamped on the inner wall of the fixing groove 5 again. The operation is convenient and the practicability is strong, which solves the problem that generally multiple groups of bolts are required to fasten between the existing grinder spindle tool holder and the tool, so that the operation of installation and disassembly is more cumbersome, takes too much time, and thus affects the working efficiency of the grinder and has poor practicability.

[0026] Before pulling the control rod 9, it is necessary to rotate the lower connecting block 14. The lower connecting block 14 drives the threaded rod 13 to move downward on the inner wall of the connecting groove 12, driving the abutting block 15 away from the lower wall of the rotating shaft 3. After pulling the control rod 9, the lower connecting block 14 is used to drive the threaded rod 13 to return to its original position. At this time, the abutting block 15 abuts against the lower wall of the rotating shaft 3, and at this time, the control rod 9 cannot be pulled, which can avoid the phenomenon of accidental touch.

[0027] To sum up: when the tool body 4 needs to be disassembled, rotate the lower connecting block 14. The lower connecting block 14 drives the threaded rod 13 to move downward on the inner wall of the connecting groove 12, driving the abutting block 15 away from the lower wall of the rotating shaft 3. At the same time, pull outwards the control rods 9 on the inner walls of the first slideway 6 and the second slideway 7, so that the elastic element 8 is tightened. The control rod 9 is used to drive the middle connecting plate 10 to move, and the arc-shaped clamping plate 11 is driven by the middle connecting plate 10 to disengage from the inner wall of the fixing groove 5. At this time, the tool body 4 can be removed. For installation, only by using the acting force of the elastic element 8, the arc-shaped clamping plate 11 can be driven to be clamped on the inner wall of the fixing groove 5 again. Then, the lower connecting block 14 is used to drive the threaded rod 13 to return to its original position. At this time, the abutting block 15 abuts against the lower wall of the rotating shaft 3, and at this time, the control rod 9 cannot be pulled.

[0028] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A grinding machine spindle tool holder, comprising an upper mounting frame (1) installed on the grinding machine, and a main frame body (2) is installed at the lower end of the upper mounting frame (1), characterized in that: A rotating shaft (3) is rotatably connected inside the bottom opening of the main frame body (2). A tool body (4) is slidably arranged on the inner wall of the rotating shaft (3). A plurality of fixing grooves (5) are formed in the outer wall of the tool body (4). A first sliding groove (6) and a second sliding groove (7) are formed in the bottom of the main frame body (2). Elastic elements (8) are fixedly connected to the inner walls of the first sliding groove (6) and the second sliding groove (7). One end of each elastic element (8) is fixedly connected to a control rod (9). The upper end of the control rod (9) is fixedly connected to a middle connecting plate (10). One end of the middle connecting plate (10) away from the control rod (9) is connected to an arc-shaped clamping plate (11). A roller is installed on the inner wall of the arc-shaped clamping plate (11). The arc-shaped clamping plate (11) is used for clamping on the inner wall of the fixing groove (5).

2. The grinding machine spindle tool holder according to claim 1, characterized in that: The first sliding groove (6) and the second sliding groove (7) are symmetrically distributed about the center of the tool body (4).

3. The grinding machine spindle tool rest according to claim 1, characterized in that: When the arc-shaped clamping plate (11) clamps on the inner wall of the fixing groove (5), the elastic element (8) is in a relaxed state.

4. A grinding machine spindle tool holder according to claim 1, characterized in that: The control rod (9) is slidably connected to the inner walls of the first sliding groove (6) and the second sliding groove (7).

5. A grinding machine spindle tool rest according to claim 1, characterized in that: A connecting groove (12) is formed in the lower end of the control rod (9). A threaded rod (13) is threadedly connected to the inner wall of the connecting groove (12). The lower end of the threaded rod (13) is fixedly connected to a lower connecting block (14). A pressing block (15) is installed on the upper wall of the lower connecting block (14).

6. The grinding machine spindle tool holder according to claim 5, wherein: There are two groups of pressing blocks (15), and the two groups of pressing blocks (15) are symmetrically distributed about the center of the lower connecting block (14).

7. The grinding machine spindle tool rest according to claim 6, characterized in that: The pressing block (15) is a component made of rubber material. The pressing block (15) is attached to the lower wall of the rotating shaft (3). The inside of the pressing block (15) is a hollow structure, which is elastic and deformable.

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