Numerical control grinding machine with grinding wheel convenient to replace

Abstract

A positioning mechanism comprises a movable column, a clamping arm and a second clamping plate, the movable column is movably connected in a first movable groove, one end of the movable column is rotatably connected with a screw rod, the screw rod is in threaded connection with a connecting column, a concave cavity is formed in the movable column, and the clamping arm is connected with the second clamping plate. A concave cavity is formed in the middle of the movable column, a communicating groove communicating with the concave cavity is formed in the outer portion of the movable column, one end of the clamping arm is located in the concave cavity, the clamping arm is movably connected to the supporting piece, and the second clamping plate is arranged on the connecting column in a sleeving mode. And therefore, a thrust effect can be applied to the clamping arm, the clamping arm rotates, the clamping arm is attached to the second clamping plate, the grinding wheel between the first clamping plate and the second clamping plate is fixed, disassembly and assembly are convenient, and clamping is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control grinders, in particular to a numerical control grinder which is convenient for replacing a grinding wheel. Background Art

[0002] After retrieval, the Chinese patent publication number is CN218254367U, and the publication date is 2023-01-10. It discloses a high-precision CNC special grinding machine, including a base, a workbench is fixedly installed on the top of the base, an L-shaped plate is fixedly installed on the top of the base, a U-shaped plate is installed on the inner side of the L-shaped plate, a motor is fixedly installed on the inner left end face of the U-shaped plate, a rotating shaft is fixedly installed on the right side of the motor, and a grinding wheel is installed on the right side of the rotating shaft; the utility model, through the cooperation between the connecting rod and the side rod and the outer ring and the fixed ring, can then make the fixed plate move to the right, and then make the two clamping rods move to the right and separate from the two clamping holes respectively, at this time, the fixation of the grinding wheel is released, and through the cooperation between the left fixed plate and the positioning rod and the positioning hole, the grinding wheel can be taken out from the rotating shaft, thereby facilitating the disassembly and replacement of the grinding wheel. However, when the device is in use, the spring is used to clamp and fix the grinding wheel. When the grinding wheel rotates, the spring will be affected to a certain extent, causing the spring to deform, so that the grinding wheel is not fixed stably enough, which is disadvantageous in use. Utility Model Content

[0003] The purpose of the utility model is to provide a CNC grinding machine which is convenient for replacing the grinding wheel, so as to solve the problems mentioned in the above background technology.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A CNC grinder that is convenient for replacing a grinding wheel comprises a workbench and a motor arranged on the workbench, the motor being fixedly connected to a connecting column, the connecting column being provided with a grinding wheel, the connecting column being provided with a first movable groove and a second movable groove that are interconnected, the outer side of the groove cavity of the second movable groove being open, a support member being provided in the first movable groove, a first clamping plate being fixedly connected to the connecting column, and a positioning mechanism being provided on the connecting column.

[0006] The positioning mechanism includes a movable column, a clamping arm and a second clamping plate. The movable column is movably connected in the first movable groove. One end of the movable column is rotatably connected to a screw rod. The screw rod is threadedly connected to the connecting column. A concave cavity is provided inside the movable column. A connecting groove connected to the concave cavity is provided outside the movable column. One end of the clamping arm is located in the concave cavity. The clamping arm is movably connected to the support member. The second clamping plate is sleeved on the connecting column.

[0007] As a further solution of the utility model: the first movable groove is composed of a first groove body and a second groove body, and the movable column is slidably connected to the second groove body.

[0008] As a further solution of the utility model: the support member includes fixed blocks symmetrically arranged along the second slot body, the fixed blocks are fixedly connected in the first slot body, a fixed shaft is fixedly connected between the two fixed blocks, and the fixed shaft is rotatably connected to the clamping arm.

[0009] As a further solution of the utility model: the outer surface of the connecting column is threadedly connected with a dust ring, and one side of the dust ring is fitted on the clamping arm.

[0010] As a further solution of the utility model: a cylinder is fixedly connected to one side of the workbench, and a transparent baffle is fixedly connected to the output end of the cylinder.

[0011] As a further solution of the utility model: the clamping arms are respectively matched with the second movable grooves and the connecting grooves, and four second movable grooves are provided.

[0012] Beneficial Effects

[0013] The utility model provides a CNC grinding machine which is convenient for replacing grinding wheels. Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) The present application drives the movable column to move by rotating the screw rod, and under the action of the concave cavity and the connecting groove, a thrust can be applied to the clamp arm, so that the clamp arm rotates, and then the clamp arm is attached to the second clamp plate, thereby fixing the grinding wheel between the first clamp plate and the second clamp plate, which is convenient for disassembly and assembly and stable for clamping.

[0015] (2) The present application provides a dustproof ring and uses the dustproof ring to seal the second movable groove, thereby preventing debris from entering the first movable groove and avoiding inconvenience in subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first-perspective stereogram of the present invention;

[0017] Figure 2 It is a second perspective stereogram of the utility model;

[0018] Figure 3 It is a three-dimensional cross-sectional view of the connecting column of the utility model;

[0019] Figure 4 It is a three-dimensional cross-sectional view of the connecting column of the utility model after removing the positioning mechanism, the first clamping plate and the dustproof ring;

[0020] Figure 5 It is a three-dimensional cross-sectional view of the movable column of the utility model.

[0021] In the figure: 1. workbench; 2. motor; 3. connecting column; 4. grinding wheel; 5. first movable groove; 51. first groove body; 52. second groove body; 6. second movable groove; 7. support member; 71. fixed block; 72. fixed shaft; 8. first clamping plate; 9. positioning mechanism; 91. movable column; 92. clamping arm; 93. second clamping plate; 94. screw; 95. concave cavity; 96. connecting groove; 10. dust ring; 11. cylinder; 12. transparent baffle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-5As shown, the utility model is a CNC grinding machine which is convenient for replacing a grinding wheel, comprising a workbench 1 and a motor 2 arranged on the workbench 1, the motor 2 being electrically connected to an external power supply and being controlled by an external control program, a lifting mechanism for lifting the motor 2 is arranged on the workbench 1, a connecting column 3 is fixedly connected to the motor 2, a positioning slide groove is arranged on the connecting column 3, a grinding wheel 4 is arranged on the connecting column 3, a limiting mechanism is arranged between the grinding wheel 4, the connecting column 3 and a first clamping plate 8, the limiting mechanism can be used to prevent the grinding wheel 4 from rotating on the connecting column 3, a first movable groove 5 and a second movable groove 6 which are interconnected are opened inside the connecting column 3, the outer side of the groove cavity of the second movable groove 6 is opened, a support member 7 is arranged in the first movable groove 5, a first clamping plate 8 is fixedly connected to the connecting column 3, and a positioning mechanism 9 is arranged on the connecting column 3; the positioning mechanism 9 comprises a movable column 91, a clamping arm 92 and a second clamping plate 93, the second clamping plate 93 is provided with a positioning slide groove The second clamping plate 92 is movably connected to the first movable groove 5, and one end of the movable column 91 is rotatably connected to the first movable groove 5. The screw 94 is threadedly connected to the connecting column 3. The movable column 91 is provided with a concave cavity 95 inside, and the movable column 91 is provided with a connecting groove 96 connected to the concave cavity 95 outside. One end of the clamping arm 92 is located in the concave cavity 95, and the clamping arm 92 is movably connected to the support member 7. The second clamping plate 93 is sleeved on the connecting column 3, and the movable column 91 is driven to move by rotating the screw 94. Under the action of the concave cavity 95 and the connecting groove 96, a thrust can be applied to the clamping arm 92, so that the clamping arm 92 rotates, and then the clamping arm 92 is attached to the second clamping plate 93, thereby fixing the grinding wheel 4 between the first clamping plate 8 and the second clamping plate 93, which is convenient for disassembly and assembly and stable clamping.

[0025] The first movable slot 5 is composed of a first slot body 51 and a second slot body 52 , and the movable column 91 is slidably connected to the second slot body 52 .

[0026] The support member 7 includes fixed blocks 71 symmetrically arranged along the second slot body 52 . The fixed blocks 71 are fixedly connected in the first slot body 51 . A fixed shaft 72 is fixedly connected between the two fixed blocks 71 . The fixed shaft 72 is rotatably connected to the clamping arm 92 .

[0027] A cylinder 11 is fixedly connected to one side of the workbench 1. The cylinder 11 is electrically connected to an external power supply and is controlled by an external control program. A transparent baffle 12 is fixedly connected to the output end of the cylinder 11. The transparent baffle 12 can prevent debris from splashing onto the worker's face, thereby protecting the worker.

[0028] The clamping arms 92 are respectively matched with the second movable grooves 6 and the connecting grooves 96 , and four second movable grooves 6 are provided.

[0029] Embodiment 2

[0030] Based on Example 1, see Figure 3 Shown

[0031] The outer surface of the connecting column 3 is threadedly connected with a dust ring 10, and one side of the dust ring 10 is fitted on the clamping arm 92. By setting the dust ring 10 and using the dust ring 10 to seal the second movable groove 6, debris can be prevented from entering the first movable groove 5, avoiding inconvenience in subsequent operations.

[0032] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] The working principle of the utility model is as follows: the grinding wheel 4 is put on the connecting column 3, and then the positioning slide bar on the second clamping plate 93 corresponds to the positioning slide groove on the connecting column 3, and the second clamping plate 93 is put on the connecting column 3, so that the second clamping plate 93 and the grinding wheel 4 are fitted together, and then the screw 94 is rotated, and then the screw 94 drives the movable column 91 to move into the first groove body 51. In the process of moving, the concave cavity 95 and the connecting groove 96 are used to act on the clamping arm 92, so that the clamping arm 92 rotates on the fixed shaft 72, so that one end of the clamping arm 92 moves to the outside of the connecting column 3 through the second movable groove 6, and then the four clamping arms 92 are mutually perpendicular, and the clamp arm 92 and the second clamp plate 93 are tightly fitted. At the same time, the clamp arm 92 and the opening of the second movable groove 6 are also tightly fitted, so as to fix the grinding wheel 4 between the first clamp plate 8 and the second clamp plate 93, and the clamping is stable. After that, the dust ring 10 is threadedly connected to the connecting column 3, and the second movable groove 6 is blocked by the dust ring 10 to prevent debris from entering the first movable groove 5, avoiding inconvenience to subsequent operations. At the same time, the transparent baffle 12 can prevent debris from splashing onto the worker's face, playing a role in protecting the worker. When disassembling and replacing the grinding wheel 4, first remove the dust ring 10, then reversely rotate the screw 94, and store the clamp arm 92 in the second movable groove 6. After that, the grinding wheel 4 can be removed. The operation is simple and convenient to use.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC grinding machine for facilitating the replacement of a grinding wheel, comprising a workbench (1) and a motor (2) arranged on the workbench (1), characterized in that: The motor (2) is fixedly connected to a connecting column (3), a grinding wheel (4) is arranged on the connecting column (3), a first movable groove (5) and a second movable groove (6) are arranged inside the connecting column (3), the outer side of the groove cavity of the second movable groove (6) is opened, a supporting member (7) is arranged in the first movable groove (5), a first clamping plate (8) is fixedly connected to the connecting column (3), and a positioning mechanism (9) is arranged on the connecting column (3); The positioning mechanism (9) comprises a movable column (91), a clamping arm (92) and a second clamping plate (93); the movable column (91) is movably connected in the first movable groove (5); one end of the movable column (91) is rotatably connected to a screw rod (94); the screw rod (94) is threadedly connected to the connecting column (3); a concave cavity (95) is provided inside the movable column (91); a connecting groove (96) connected to the concave cavity (95) is provided outside the movable column (91); one end of the clamping arm (92) is located in the concave cavity (95); the clamping arm (92) is movably connected to the support member (7); and the second clamping plate (93) is sleeved on the connecting column (3).

2. A CNC grinding machine for easy replacement of grinding wheels according to claim 1, characterized in that: The first movable groove (5) is composed of a first groove body (51) and a second groove body (52), and the movable column (91) is slidably connected to the second groove body (52).

3. A CNC grinding machine for easy replacement of grinding wheels according to claim 2, characterized in that: The support member (7) comprises fixed blocks (71) symmetrically arranged along the second slot body (52), the fixed blocks (71) being fixedly connected in the first slot body (51), a fixed shaft (72) being fixedly connected between the two fixed blocks (71), and the fixed shaft (72) being rotationally connected to the clamping arm (92).

4. A CNC grinding machine for easy replacement of grinding wheels according to claim 1, characterized in that: The outer surface of the connecting column (3) is threadedly connected with a dustproof ring (10), and one side of the dustproof ring (10) is fitted on the clamping arm (92).

5. The CNC grinding machine for facilitating grinding wheel replacement according to claim 1, characterized in that: A cylinder (11) is fixedly connected to one side of the workbench (1), and a transparent baffle (12) is fixedly connected to the output end of the cylinder (11).

6. The CNC grinding machine for facilitating grinding wheel replacement according to claim 1, characterized in that: The clamping arms (92) are respectively adapted to the second movable grooves (6) and the connecting grooves (96), and four second movable grooves (6) are provided.

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