Multifunctional clamp for CNC (computer numerical control) machine tool

Abstract

The utility model relates to the field of CNC (computer numerical control) machine tool machining, in particular to a multifunctional clamp for a CNC machine tool, which comprises a bottom plate, a fixedly connected hollow cylinder is arranged above the bottom plate through bolts, a stepping motor is placed in the hollow cylinder, a shell is further fixedly arranged above the hollow cylinder through bolts, and the shell is fixedly connected with the bottom plate through bolts. A rotating shaft of the stepping motor penetrates through the shell and then is fixedly provided with a first straight gear; first mounting holes which are axially distributed are formed in the upper portion of the mounting circular plate, second mounting holes which are axially distributed are further formed in the upper portion of the mounting circular plate, and limiting columns which are slidably connected are arranged in the first mounting holes and the second mounting holes; in the machining process, if a workpiece needs to be rotated, the stepping motor is started to rotate through the first straight gear, the first straight gear drives the second straight gear to rotate, the second straight gear drives the inner gear ring to rotate, the inner gear ring drives the mounting circular plate above the inner gear ring to rotate, and therefore the cover plate glass fixed to the device rotates in the direction.

Description

Technical Field

[0001] The utility model relates to the field of CNC numerical control machine tool processing, in particular to a multifunctional clamp used for CNC numerical control machine tools. Background Art

[0002] CNC machine tools are digitally controlled machine tools, which are automated machine tools equipped with a program control system. The control system can logically process programs specified by control codes or other symbolic instructions, decode them, express them in coded numbers, and input them into the numerical control device through information carriers. After calculation and processing, the numerical control device sends various control signals to control the movement of the machine tool and automatically process parts according to the shape and size required by the drawing.

[0003] When processing cover glass, it needs to go through processes such as cutting, CNC grinding, hot bending, thinning, strengthening, printing, and vacuum coating. During CNC grinding, a clamp is needed to fix the cover glass. Most conventional clamps can only fix flat cover glass, which makes conventional clamps less practical, and ordinary clamps are usually difficult to adjust the angle after fixing.

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a multifunctional fixture for CNC machine tools to solve the above-mentioned technical defects.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A multifunctional fixture for a CNC machine tool comprises a bottom plate, a hollow cylinder fixedly connected to the bottom plate is provided above the bottom plate by bolts, a stepper motor is placed inside the hollow cylinder, a housing is fixedly provided above the hollow cylinder by bolts, a first spur gear is fixedly provided after the rotating shaft of the stepper motor passes through the housing, and a mounting circular plate is also placed above the housing;

[0008] A first mounting hole distributed axially is provided above the mounting circular plate, and a second mounting hole distributed axially is also provided above the mounting circular plate. The first mounting hole and the second mounting hole are both provided with slidably connected limit columns inside, and an array of V-shaped arc grooves are provided on the outer side of the limit columns. A fixedly connected fixing plate is also provided above the limit columns, and a telescopic spring is fixedly provided below the fixing plate.

[0009] A connecting block that is fixedly connected is provided above the fixing plate by welding, a connecting plate that is rotatably connected is provided above the connecting block, a suction cup is fixed above the connecting plate by gluing, a first circular groove and a second circular groove are provided above the mounting circular plate, a first circular fixing plate that is rotatably fitted is provided above the first circular groove, and a second circular fixing plate that is rotatably connected is provided above the second circular groove.

[0010] Preferably, the shell is fixed to the stepper motor by bolts, and a second spur gear rotatably connected is provided on the top of the shell, and the second spur gear is meshed with the first spur gear. An inner gear ring fixedly connected is provided below the mounting circular plate by bolts, and the inner gear ring is meshed with the second spur gear.

[0011] Preferably, a first arc-shaped slide groove is provided below the mounting circular plate, and a second arc-shaped slide groove is provided below the mounting circular plate, wherein the second arc-shaped slide groove is located between the first mounting hole and the second mounting hole, and the bottom of the telescopic spring is fixedly connected to the upper end of the mounting circular plate.

[0012] Preferably, an air pump is fixedly provided below the mounting circular plate by bolts, an air pipe is fixedly provided below one side of the suction cup, the air pipe is connected to the upper end of the suction cup, and the other end of the air pipe is fixedly connected to the air pump.

[0013] Preferably, the second circular groove is located on the outside of the first circular groove, the shaft below the first circular fixing plate is slidably matched with the first arc-shaped groove, the outsides of the first circular fixing plate and the second circular fixing plate are both fixed with axially distributed V-shaped protrusions, the V-shaped protrusions are slidably matched with the V-shaped arc groove, and the shaft below the second circular fixing plate is slidably matched with the second arc-shaped groove.

[0014] Preferably, the axes below the first circular fixing plate and the second circular fixing plate are fixedly connected to the connecting column, a second cover plate is provided above the first circular fixing plate, and the second cover plate is fixed to the mounting circular plate by bolts, and a first cover plate is provided above the second circular fixing plate, and the first cover plate is fixed to the mounting circular plate by bolts.

[0015] The beneficial effects of the utility model are as follows:

[0016] During processing, if the workpiece needs to be rotated, the stepper motor is started to rotate through the first spur gear, the first spur gear drives the second spur gear to rotate, the second spur gear drives the inner gear ring to rotate, and the inner gear ring drives the mounting circular plate above it to rotate, so that the cover glass fixed on the device rotates in a certain direction. When it is necessary to fix the curved glass, the curved glass is placed above the suction cup. Because the suction cup is supported by a telescopic spring, the curved cover glass is slightly pressed down until all the suction cups suck the glass. Then the connecting column is rotated to fix the limit column. At the same time, the connecting plate and the connecting block are rotatably matched, so the suction cup can adjust the angle to adapt to glass with different curvatures, so that the device can clamp and fix the curved glass, thereby increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings;

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the connection structure between the bottom plate and the stepping motor in the utility model;

[0020] Figure 3 It is a schematic diagram of the connection structure between the mounting circular plate and the inner gear ring in the utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure between the limit column and the suction cup in the utility model;

[0022] Figure 5 It is a schematic diagram of the connection structure between the mounting circular plate and the suction cup in the utility model;

[0023] Figure 6 It is a schematic diagram of the connection structure of the first circular fixing plate and the second circular fixing plate in the utility model.

[0024] Legend: 1. Base plate; 11. Hollow cylinder; 12. Stepper motor; 13. Housing; 14. First spur gear; 15. Second spur gear; 16. Inner gear ring; 17. Mounting circular plate; 18. First mounting hole; 19. Second mounting hole; 20. Air pump; 21. First arc-shaped slide groove; 22. Second arc-shaped slide groove; 23. Limiting column; 24. Fixing plate; 25. Telescopic spring; 26. Connecting block; 27. Connecting plate; 28. Suction cup; 29. ​​Air pipe; 30. First circular slot; 31. Second circular slot; 32. First circular fixing plate; 33. Second circular fixing plate; 34. First cover plate; 35. Second cover plate; 36. Connecting column. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 1 - Figure 6 As shown, the utility model is a multifunctional fixture for CNC machine tools, including a base plate 1, a hollow cylinder 11 fixedly connected to the base plate 1 is provided above the base plate 1 by bolts, a stepper motor 12 is placed inside the hollow cylinder 11, a housing 13 is also fixedly provided above the hollow cylinder 11 by bolts, the housing 13 and the stepper motor 12 are fixed by bolts, a first spur gear 14 is fixedly provided after the rotating shaft of the stepper motor 12 passes through the housing 13, a second spur gear 15 rotatably connected is also provided above the housing 13, and the second spur gear 15 is meshed with the first spur gear 14.

[0027] A mounting circular plate 17 is also placed above the housing 13, and an inner gear ring 16 is fixedly connected to the mounting circular plate 17 by bolts below. The inner gear ring 16 meshes with the second spur gear 15. When the stepper motor 12 is started, the second spur gear 15 is driven to rotate through the first spur gear 14 at its end, and the second spur gear 15 drives the inner gear ring 16 to rotate, and the inner gear ring 16 drives the mounting circular plate 17 above it to rotate.

[0028] A first axially distributed mounting hole 18 is provided above the mounting circular plate 17, a second axially distributed mounting hole 19 is also provided above the mounting circular plate 17, a first arc-shaped slide groove 21 is also provided below the mounting circular plate 17, a second arc-shaped slide groove 22 is also provided below the mounting circular plate 17, the second arc-shaped slide groove 22 is located between the first mounting hole 18 and the second mounting hole 19, a slidably connected limit column 23 is provided inside the first mounting hole 18 and the second mounting hole 19, and an array of V-shaped arc grooves are provided on the outer side of the limit column 23.

[0029] A fixed plate 24 is fixedly provided above the limiting column 23, a telescopic spring 25 is fixedly provided below the fixing plate 24, the bottom of the telescopic spring 25 is fixedly connected to the upper end of the mounting circular plate 17, a connecting block 26 is fixedly provided above the fixing plate 24 by welding, a rotatably connected connecting plate 27 is provided above the connecting block 26, a suction cup 28 is fixed above the connecting plate 27 by glue, and the suction cup 28 is used to suck and fix the glass.

[0030] An air pump 20 is fixedly provided below the mounting circular plate 17 by bolts, and an air pipe 29 is fixedly provided below one side of the suction cup 28. The air pipe 29 is connected to the upper end of the suction cup 28, and the other end of the air pipe 29 is fixedly connected to the air pump 20. When the air pump 20 is started, it drives all the suction cups 28 to synchronously perform air suction and grasping or air release and loosening.

[0031] A first circular groove 30 and a second circular groove 31 are also provided above the mounting circular plate 17. The second circular groove 31 is located on the outside of the first circular groove 30. A first circular fixing plate 32 for rotational cooperation is provided above the first circular groove 30. The shaft below the first circular fixing plate 32 is slidably cooperated with the first arc-shaped slide groove 21. A second circular fixing plate 33 for rotational connection is provided above the second circular groove 31. Axially distributed V-shaped protrusions are fixed on the outside of the first circular fixing plate 32 and the second circular fixing plate 33. The V-shaped protrusions are slidably cooperated with the V-shaped arc grooves. When the V-shaped protrusions move into the V-shaped arc grooves, the limiting columns 23 are fixed.

[0032] The shaft below the second circular fixing plate 33 is slidably matched with the second arc-shaped slide groove 22, and the shafts below the first circular fixing plate 32 and the second circular fixing plate 33 are fixedly connected to the connecting column 36. The first circular fixing plate 32 and the second circular fixing plate 33 can be controlled to rotate synchronously by moving the connecting column 36. A second cover plate 35 is provided above the first circular fixing plate 32, and the second cover plate 35 is fixed to the mounting circular plate 17 by bolts. A first cover plate 34 is provided above the second circular fixing plate 33, and the first cover plate 34 is fixed to the mounting circular plate 17 by bolts.

[0033] The working process and principle of the utility model are as follows:

[0034] When in use, first place the straight or curved glass on a plurality of suction cups 28. If it is a straight glass, place the glass directly on the suction cup 28, then rotate the connecting column 36 so that the V-shaped protrusion is stuck in the V-shaped arc groove to fix the limit column 23, then start the air pump 20 to suck air, so that the suction cup 28 grabs the glass for subsequent processing. During processing, if the workpiece needs to be rotated, start the stepper motor 12, the stepper motor 12 drives the second spur gear 15 to rotate through the first spur gear 14, the second spur gear 15 drives the inner gear ring 16 to rotate, and the inner gear ring 16 drives the mounting circular plate 17 above it to rotate, so that the glass fixed on the device rotates in the right direction;

[0035] When it is necessary to fix the curved glass, the method of use is almost the same as above, but when the curved glass is placed above the suction cup 28, because the telescopic spring 25 supports the suction cup 28, the glass needs to be slightly pressed down until all the suction cups suck the glass, and then the connecting column 36 is rotated to fix the limit column 23. At the same time, the connecting plate 27 and the connecting block 26 are rotatably matched, so the suction cup 28 can adjust the angle to adapt to glass with different curvatures, so that the device can clamp and fix the curved glass.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A multifunctional fixture for a CNC machine tool, comprising a base plate (1), characterized in that: A hollow cylinder (11) is fixedly connected to the bottom plate (1) by bolts, a stepper motor (12) is placed inside the hollow cylinder (11), a housing (13) is fixedly provided above the hollow cylinder (11) by bolts, a rotating shaft of the stepper motor (12) passes through the housing (13) and a first spur gear (14) is fixedly provided thereon, and a mounting circular plate (17) is also placed above the housing (13); A first mounting hole (18) distributed axially is provided above the mounting circular plate (17), and a second mounting hole (19) distributed axially is also provided above the mounting circular plate (17); a slidably connected limiting column (23) is provided inside the first mounting hole (18) and the second mounting hole (19); an array of V-shaped arc grooves are provided outside the limiting column (23); a fixedly connected fixing plate (24) is also provided above the limiting column (23); and a telescopic spring (25) is fixedly provided below the fixing plate (24); A connection block (26) fixedly connected by welding is also provided above the fixing plate (24), a connection plate (27) rotatably connected is also provided above the connection block (26), a suction cup (28) is fixedly provided above the connection plate (27) by gluing, a first circular slot (30) and a second circular slot (31) are also provided above the mounting circular plate (17), a first circular fixing plate (32) rotatably matched is provided above the first circular slot (30), and a second circular fixing plate (33) rotatably connected is provided above the second circular slot (31).

2. A multifunctional fixture for CNC machine tools according to claim 1, characterized in that: The housing (13) is fixed to the stepper motor (12) by bolts. A second spur gear (15) is rotatably connected to the housing (13) above, and the second spur gear (15) meshes with the first spur gear (14). An inner gear ring (16) is fixedly connected to the mounting circular plate (17) by bolts below, and the inner gear ring (16) meshes with the second spur gear (15).

3. A multifunctional fixture for CNC machine tools according to claim 2, characterized in that: A first arc-shaped slide groove (21) is also provided below the mounting circular plate (17), and a second arc-shaped slide groove (22) is also provided below the mounting circular plate (17), wherein the second arc-shaped slide groove (22) is located between the first mounting hole (18) and the second mounting hole (19), and the bottom of the telescopic spring (25) is fixedly connected to the upper end of the mounting circular plate (17).

4. A multifunctional fixture for a CNC machine tool according to claim 3, characterized in that: An air pump (20) is fixedly provided below the mounting circular plate (17) by means of bolts, and an air pipe (29) is fixedly provided below one side of the suction cup (28). The air pipe (29) is communicated with the upper end of the suction cup (28), and the other end of the air pipe (29) is fixedly connected to the air pump (20).

5. A multifunctional fixture for a CNC machine tool according to claim 4, characterized in that: The second circular groove (31) is located on the outside of the first circular groove (30), the shaft below the first circular fixing plate (32) is slidably matched with the first arc-shaped sliding groove (21), the outsides of the first circular fixing plate (32) and the second circular fixing plate (33) are both fixed with axially distributed V-shaped protrusions, the V-shaped protrusions are slidably matched with the V-shaped arc groove, and the shaft below the second circular fixing plate (33) is slidably matched with the second arc-shaped sliding groove (22).

6. A multifunctional fixture for a CNC machine tool according to claim 5, characterized in that: The shafts below the first circular fixing plate (32) and the second circular fixing plate (33) are fixedly connected to the connecting column (36); a second cover plate (35) is provided above the first circular fixing plate (32); the second cover plate (35) is fixed to the mounting circular plate (17) by bolts; a first cover plate (34) is provided above the second circular fixing plate (33); the first cover plate (34) is fixed to the mounting circular plate (17) by bolts.

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