CN221696132U - Special fixture for numerical control machining center - Google Patents

Abstract

The utility model discloses a special clamp for a numerical control machining center, comprising: a connecting component, comprising a docking card seat, a card block, a card slot and a fixing bolt, wherein the fixed connection between the docking card seat and the connecting rod is welded and integrated; the docking card seat is movably connected with the card block, and a card slot is provided on one side plate of the card block; a plurality of fixing bolts are installed on the side plate of the docking card seat, and one end of the fixing bolt extends to the inside of the card slot; the docking card seat and the card block are in a card-engaging structure, so that a clamping seat fixedly connected on the other side plate of the card block can be mutually disassembled and assembled with the connecting rod; the special clamp for the numerical control machining center can be disassembled and assembled with the connecting rod through the setting of the connecting component, so that the disassembled clamping seat can be conveniently repaired and maintained, and when the clamping seat is damaged beyond repair, it can be replaced, thereby avoiding the phenomenon that the clamping seat needs to be replaced as a whole after being damaged beyond repair.

Description

A special fixture for CNC machining center

Technical Field

The utility model belongs to the technical field of fixture equipment, and in particular relates to a special fixture used for a numerical control machining center.

Background Art

CNC machining centers are developed from CNC milling machines. The biggest difference between them and CNC milling machines is that machining centers have the ability to automatically exchange machining tools. By installing tools of different uses on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changer in one clamping to achieve multiple machining functions. CNC machining centers need to use different fixtures to clamp the materials when processing materials, so that the materials can be processed stably.

At present, most of the clamping seats of special clamps for CNC machining centers do not have modular functions, which makes it difficult to move the clamping seat when it is damaged and needs repair. When the clamping seat is damaged beyond repair, it will need to be replaced as a whole, increasing the cost of use.

Utility Model Content

The purpose of the utility model is to provide a special clamp for a CNC machining center to solve the problems raised in the above background technology.

To achieve the above purpose, the utility model provides the following technical solution: a special fixture for a CNC machining center, comprising:

Base;

The sliding assembly includes a slider and a slide groove, wherein the slide grooves are both provided on the two side walls of the base; the slider is arranged at the upper end of the base, and the inner walls of the lower side plates at both ends of the slider are provided with protrusions, which extend into the slide grooves, and the two are in a sliding structure;

The lifting assembly comprises a lifting frame, a threaded rod, a moving block and a connecting rod, wherein the lifting frame is fixedly connected at the middle position of the top wall of the slider; a threaded rod is arranged inside the connecting rod, and the moving block is movably connected to the surface of the threaded rod; one side of the moving block is fixedly connected to the connecting rod and extends to the outside of the lifting frame;

The connection assembly comprises a docking card seat, a card block, a card slot and a fixing bolt, wherein the docking card seat and the connecting rod are fixedly connected and welded together; the docking card seat is movably connected with a card block, and a card slot is provided on one side plate of the card block; a plurality of fixing bolts are installed on the side plate of the docking card seat, and one end of the fixing bolts extends into the inside of the card slot;

The threads on the surfaces of the plurality of fixing bolts are threadedly connected to the screw grooves provided on the docking base;

The docking card seat and the card block are in a card-engaging structure, so that the clamping seat fixedly connected to the other side plate of the card block can be mutually disassembled and assembled with the connecting rod;

Preferably, a servo motor is installed at the top of the lifting frame, and the output end of the servo motor extends to the inside of the lifting frame and is fixedly connected to the top of the threaded rod;

Preferably, the threads on the surface of the lifting frame are threadedly connected to the screw grooves of the moving block;

Preferably, the interior of the lifting assembly further includes a moving groove, and the moving groove is opened in the other side wall of the lifting frame, so that the connecting rod can pass through one side of the lifting frame and move in the moving groove;

Preferably, the interior of the sliding assembly further includes a pulley, and the plurality of pulleys are all mounted on the side walls of the two protrusions;

Preferably, a mounting plate is fixedly connected to one side of the top wall of the base, and a plurality of sets of hydraulic telescopic cylinders are installed between the side wall of the mounting plate and the side wall of the lifting frame;

The technical effects and advantages of the utility model are as follows: the special clamp of the CNC machining center can be disassembled and installed between the clamping seat and the connecting rod through the setting of the connecting component, so that the disassembled clamping seat can be conveniently repaired and maintained, and when the clamping seat is damaged beyond repair, it can be replaced, avoiding the need to replace the entire clamping seat after it is damaged beyond repair, resulting in increased cost of use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view schematic diagram of the utility model;

FIG2 is a front cross-sectional schematic diagram of the lifting assembly of the utility model;

FIG3 is a top cross-sectional schematic diagram of a connection assembly of the utility model;

FIG4 is a front cross-sectional schematic diagram of a sliding assembly of the present invention;

FIG. 5 is an enlarged schematic diagram of point A in FIG. 4 of the present invention.

In the figure: 1. base; 2. mounting plate; 3. hydraulic telescopic cylinder; 4. lifting assembly; 41. lifting frame; 42. threaded rod; 43. moving block; 44. connecting rod; 45. moving groove; 5. servo motor; 6. connecting assembly; 61. docking card seat; 62. card block; 63. card slot; 64. fixing bolt; 7. clamping seat; 8. electric telescopic rod; 9. sliding assembly; 91. slider; 92. slide groove; 93. pulley; 10. pressure plate; 11. placement plate.

DETAILED DESCRIPTION

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.

The utility model provides a special fixture for a CNC machining center as shown in FIG. 1 , FIG. 4 and FIG. 5 , comprising: a base 1, a mounting plate 2 is fixedly connected to one side of the top wall of the base 1, and a plurality of groups of hydraulic telescopic cylinders 3 are installed between the side wall of the mounting plate 2 and the side wall of the lifting frame 41;

Among them, the installation of the hydraulic telescopic cylinder 3 between the side wall of the mounting plate 2 and the side wall of the lifting frame 41 can provide power for the movement of the lifting frame 41;

The sliding assembly 9 includes a slider 91 and a slide groove 92, and the slide grooves 92 are both provided on the two side walls of the base 1; the slider 91 is arranged at the upper end of the base 1, and the inner walls of the lower side plates at both ends of the slider 91 are provided with protrusions, which extend into the slide grooves 92, and the two are in a sliding structure;

The interior of the sliding assembly 9 also includes a pulley 93, and a plurality of pulleys 93 are installed on the side walls of the two protrusions. The arrangement of the pulleys 93 can convert the sliding friction of the protrusions in the slide groove 92 into static friction.

Specifically, the lifting frame 41 is driven to extend and retract through the self-extending function of the hydraulic telescopic cylinder 3, and at the same time, the slider 91 fixedly connected to the bottom end of the lifting frame 41 is driven, so that the inner walls of the lower side plates at both ends of the slider 91 are provided with protrusions that slide inside the slide groove 92, thereby preventing the lifting frame 41 from shaking during the movement. The setting of the pulley 93 can make the sliding of the protrusion inside the slide groove 92 more labor-saving;

As shown in FIG. 1 and FIG. 2 , the lifting assembly 4 includes a lifting frame 41, a threaded rod 42, a moving block 43 and a connecting rod 44. The lifting frame 41 is fixedly connected to the middle position of the top wall of the slider 91; the threaded rod 42 is arranged inside the connecting rod 44, and the moving block 43 is movably connected to the surface of the threaded rod 42; one side of the moving block 43 is fixedly connected to the connecting rod 44 and extends to the outside of the lifting frame 41;

A servo motor 5 is installed at the top of the lifting frame 41, and the output end of the servo motor 5 extends to the inside of the lifting frame 41 and is fixedly connected to the top of the threaded rod 42;

The threads on the surface of the lifting frame 41 are threadedly connected to the screw grooves of the moving block 43;

The lifting assembly 4 further includes a moving groove 45, and the moving groove 45 is opened in the other side wall of the lifting frame 41, so that the connecting rod 44 can pass through one side of the lifting frame 41 and move in the moving groove 45, so that the opening height of the moving groove 45 limits the range of movement of the connecting rod 44;

Specifically, the servo motor 5 is started to drive the output shaft of the servo motor 5 to rotate, and the output shaft will drive the internal threaded rod 42 of the lifting frame 41 to rotate, and at the same time, the moving block 43 on the surface of the threaded rod 42 is lifted and lowered on the surface of the threaded rod 42 through the internal threaded groove. When the direction of rotation of the output shaft of the servo motor 5 is different, the direction of rotation of the threaded rod 42 can control the direction of movement of the moving block 43 on the surface of the threaded rod 42. Then, the lifting and lowering of the moving block 43 can drive the clamping seat 7 to adjust its height through the connecting rod 44, thereby improving the applicability of this clamp.

Furthermore, the hydraulic telescopic cylinder 3 can be used to drive the lifting assembly 4 to move horizontally, and then the lifting assembly 4 can be used to drive the clamping seat 7 to adjust the height in the vertical direction, thereby realizing the multi-axis movement adjustment of the clamping seat 7;

As shown in FIG. 1 and FIG. 3 , the connection assembly 6 includes a docking card seat 61, a card block 62, a card slot 63 and a fixing bolt 64. The docking card seat 61 and the connecting rod 44 are fixedly connected and welded together; the docking card seat 61 is movably connected with the card block 62, and a card slot 63 is provided on one side plate of the card block 62; a plurality of fixing bolts 64 are installed on the side plate of the docking card seat 61, and one end of the fixing bolt 64 extends to the inside of the card slot 63;

The threads on the surfaces of the plurality of fixing bolts 64 are threadedly connected to the screw grooves provided on the docking holder 61;

The docking card seat 61 and the card block 62 are in a card-engaging structure, so that the clamping seat 7 fixedly connected to the other side plate of the card block 62 can be mutually disassembled and assembled with the connecting rod 44;

Specifically, the block 62 is lifted so that the side plate with the slot 63 is inserted into the docking card seat 61 from the opening at the top of the docking card seat 61, so that the docking card seat 61 and the block 62 are engaged with each other. Then, the fixing bolt 64 is rotated so that the fixing bolt 64 rotates in the thread groove on the docking card seat 61. Then, the fixing bolt 64 cooperates with the thread grooves, so that the fixing bolt 64 moves inside the docking card seat 61 and then is engaged in the slot 63 on the block 62, so that the docking card seat 61 and the block 62 are fastened after being engaged with each other.

Furthermore, when the docking seat 61 and the block 62 are engaged and fastened, the connecting rod 44 and the clamping seat 7 are docked. When the connecting rod 44 and the clamping seat 7 are disassembled, the installation steps can be reversed.

Working principle: First, the clamping seat 7 and the connecting rod 44 are connected through the connecting assembly 6, and then the material is placed on the placing plate 11 installed on the bottom plate of the clamping seat 7, and then the electric telescopic rod 8 installed on the top plate of the clamping seat 7 is started, and then the electric telescopic rod 8 drives the pressing plate 10 to clamp the material;

Secondly, through the arrangement of the servo motor 5 and the lifting assembly 4, the clamping seat 7 for clamping the material can be adjusted in height;

Finally, when the height of the clamping seat 7 that clamps the material is adjusted to a suitable position, the lifting frame 41 can be pushed to extend and retract horizontally under the action of the hydraulic telescopic cylinder 3. As a result, the lifting frame 41 is extended and retracted at the upper end of the base 1 through the sliding assembly 9, and at the same time drives the clamping seat 7 to move to a suitable horizontal position, and then the material clamped on the clamping seat 7 is processed, and finally all the work of this clamp is completed.

In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. A special fixture for a CNC machining center, characterized by comprising: Base (1); The sliding assembly (9) comprises a slider (91) and a slide groove (92), wherein the slide grooves (92) are both provided on the two side walls of the base (1); the slider (91) is arranged at the upper end of the base (1), and the inner walls of the lower side plates at both ends of the slider (91) are both provided with protrusions, which extend into the slide grooves (92), and the two are in a sliding structure; A lifting assembly (4) comprises a lifting frame (41), a threaded rod (42), a moving block (43) and a connecting rod (44); the lifting frame (41) is fixedly connected to the middle position of the top wall of the slider (91); the connecting rod (44) is provided with a threaded rod (42) inside, and the moving block (43) is movably connected to the surface of the threaded rod (42); one side of the moving block (43) is fixedly connected to the connecting rod (44) and extends to the outside of the lifting frame (41); The connection assembly (6) comprises a docking card seat (61), a card block (62), a card slot (63) and a fixing bolt (64); the docking card seat (61) and the connecting rod (44) are fixedly connected and welded together; the docking card seat (61) is movably connected with the card block (62), and a card slot (63) is provided on one side plate of the card block (62); a plurality of fixing bolts (64) are installed on the side plate of the docking card seat (61), and one end of the fixing bolt (64) extends into the inside of the card slot (63); The threads on the surfaces of the plurality of fixing bolts (64) are threadedly connected to the screw grooves provided on the docking seat (61); The docking card seat (61) and the card block (62) are in a card-engaging structure, so that the clamping seat (7) fixedly connected on the other side plate of the card block (62) can be disassembled and assembled with the connecting rod (44). 2. A special fixture for a CNC machining center according to claim 1, characterized in that a servo motor (5) is installed at the top of the lifting frame (41), and the output end of the servo motor (5) extends to the inside of the lifting frame (41) and is fixedly connected to the top of the threaded rod (42). 3. A special fixture for a CNC machining center according to claim 1, characterized in that the thread on the surface of the lifting frame (41) is threadedly connected to the screw groove of the moving block (43). 4. A special fixture for a CNC machining center according to claim 1, characterized in that: the interior of the lifting component (4) also includes a movable groove (45), and the movable groove (45) is opened in the other side wall of the lifting frame (41), so that the connecting rod (44) can pass through one side of the lifting frame (41) and move in the movable groove (45). 5. A special fixture for a CNC machining center according to claim 1, characterized in that: the interior of the sliding assembly (9) also includes a pulley (93), and a plurality of the pulleys (93) are installed on the side walls of the two protrusions. 6. A special fixture for a CNC machining center according to claim 1, characterized in that a mounting plate (2) is fixedly connected to one side of the top wall of the base (1), and a plurality of sets of hydraulic telescopic cylinders (3) are installed between the side wall of the mounting plate (2) and the side wall of the lifting frame (41).