CN215880867U

CN215880867U - Multistation CNC processing quick positioning jig

Info

Publication number: CN215880867U
Application number: CN202023045258.3U
Authority: CN
Inventors: 黄裕江; 陈泓吉
Original assignee: Dufoni Engineering Mechanical (suzhou) Co ltd
Current assignee: Dufoni Engineering Mechanical (suzhou) Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2022-02-22
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a multi-station CNC machining rapid positioning jig which comprises a fixing bottom plate, a support, a first air cylinder, a first connecting shaft, a side pressing plate, a side pressing block, a second air cylinder, a second connecting shaft, a middle pressing plate, a switching pressing plate, a middle pressing block, a limiting block and workpieces, wherein two groups of workpiece machining stations are arranged on the fixing bottom plate, a group of first air cylinders are arranged below the fixing bottom plate and connected with the first connecting shaft, the first connecting shaft is connected with the side pressing plate, the side pressing block is arranged below the side pressing plate, a group of second air cylinders are arranged below the fixing bottom plate and connected with the second connecting shaft, the second connecting shaft is connected with the middle pressing plate, the switching pressing plate is arranged on the middle pressing plate, the middle pressing block is arranged below the switching pressing plate, and the limiting block is arranged on the outer side of each workpiece. The multi-station CNC machining rapid positioning jig disclosed by the utility model can be taken out and positioned rapidly, and a plurality of workpieces can be machined at one time, so that the time is saved, and the workpiece efficiency is improved.

Description

Multistation CNC processing quick positioning jig

Technical Field

The utility model belongs to the technical field of CNC machining, and particularly relates to a rapid positioning jig for multi-station CNC machining.

Background

CNC machining machines are programmed in a nc machining language, typically G-code. CNC machining has great advantages over manual machining, such as the parts produced by CNC machining are very accurate and repeatable; CNC machining can produce parts with complex profiles that cannot be accomplished by manual machining. CNC machining has been widely used in the field of machining. When a workpiece is subjected to CNC machining, a special jig is needed to clamp and position the workpiece, and the jig is used for accurately determining the position of the workpiece and firmly clamping the workpiece so as to facilitate the CNC machining.

Traditional CNC processing positioning jig can not fix the article very conveniently quick, reduces work efficiency, and the use of giving people has brought certain adverse effect, and when big parts in batches were processed to needs, simplex position processing need dismouting and location work piece many times, and taking out, placing and the location action of part can occupy a large amount of time, lead to work efficiency to reduce.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the defects, the utility model aims to provide a multi-station CNC machining rapid positioning jig which is simple in structure, can be taken out, placed and positioned rapidly, can machine a plurality of workpieces at one time, and reduces the time for dismounting and positioning the workpieces, so that the standby time of a machine tool is reduced, and the workpiece efficiency is greatly improved.

The technical scheme is as follows: a multi-station CNC machining rapid positioning jig comprises a fixing bottom plate, a support, a first air cylinder, a first connecting shaft, side pressing plates, side pressing blocks, a second air cylinder, a second connecting shaft, a middle pressing plate, a switching pressing plate, a middle pressing block, a limiting block and workpieces, wherein two groups of workpiece machining positions are arranged on the fixing bottom plate, the two groups of workpieces are symmetrically arranged in the transverse center of the fixing bottom plate, each group of workpieces are arrayed, a group of support is arranged below the fixing bottom plate and connected with the fixing bottom plate through sunk screws, a group of first air cylinders are arranged at four corners below the fixing bottom plate, a piston rod of each first air cylinder penetrates through the fixing bottom plate and is connected with the first connecting shaft, the side pressing plates are symmetrically arranged at the front side and the rear side of the upper side of the fixing bottom plate, the first connecting shaft at the front side is connected with two ends of the side pressing plates at the front side, the first connecting shaft at the rear side is connected with two ends of the side pressing plates at the rear side, the first connecting shaft at the front side of the fixed bottom plate is connected with two ends of a side pressure plate at the front side of the fixed bottom plate, the first connecting shaft at the rear side of the fixed bottom plate is connected with two ends of the side pressure plate at the rear side of the fixed bottom plate, a side pressure block corresponding to a group of workpieces is arranged below the side pressure plate, a group of second air cylinders is arranged at the transverse central position below the fixed bottom plate, a middle pressure plate is arranged at the transverse central position above the fixed bottom plate, piston rods of the second air cylinders penetrate through the fixed bottom plate and are connected with the second connecting shaft, the second connecting shaft is connected with two ends of the middle pressure plate, a group of switching pressure plates corresponding to the workpieces are fixed on the middle pressure plate, middle pressure blocks are arranged at the front side and the rear side below the switching pressure plates, a group of limiting blocks are arranged at the outer sides of the workpieces, and the limiting blocks limit the positions of the workpieces and are fixed on the fixed bottom plate through countersunk head screws. After the parts on the positioning jig are installed, the workpiece is placed between the limiting blocks, the position of the workpiece is limited, the first air cylinder and the second air cylinder are started at the same time, and the workpiece is pressed at the same time, so that the workpiece is completely positioned, complex operation of workers is not needed, and the workpiece can be quickly taken out, placed and positioned; and a plurality of workpiece machining positions are arranged on the fixed base plate, so that a plurality of workpieces can be simultaneously positioned and machined at one time, the workpiece dismounting and positioning time is reduced, the machine tool standby time is reduced, and the workpiece efficiency is greatly improved.

Furthermore, foretell multistation CNC processing quick positioning jig, be equipped with a set of guiding hole on side clamp plate and the well clamp plate, be equipped with the uide bushing in the guiding hole, the uide bushing and guiding hole cooperate, be equipped with the snap ring in the uide bushing lower extreme draw-in groove.

Furthermore, according to the multi-station CNC machining rapid positioning jig, the first guide rod is arranged between the first connecting shafts, and the first guide rod is inserted into the guide sleeve on the side pressing plate and is in sliding connection with the guide sleeve. The first guide rod is matched with the guide sleeve, so that the stability of the first cylinder lifting side pressure plate is improved, and the positioning precision is improved.

Furthermore, foretell multistation CNC processing quick positioning jig, be equipped with the second guide arm between the second connecting axle, the second guide arm inserts in the uide bushing on the medium pressure board and with uide bushing sliding connection. The second guide rod is matched with the guide sleeve, so that the stability of the second cylinder lifting middle pressure plate is improved, and the positioning precision is improved.

Furthermore, foretell multistation CNC processing quick positioning jig, be equipped with the rectangle recess corresponding with the switching clamp plate on the well clamp plate, the switching clamp plate is fixed in the rectangle recess and is cooperateed with the rectangle recess.

Furthermore, according to the multi-station CNC machining rapid positioning jig, the side pressing block and the middle pressing block are made of elastic plastic. The elastic plastic can avoid the damage of the surface of the workpiece caused by pressing, has certain buffer force and reduces the vibration during processing.

Further, foretell multistation CNC processing quick positioning jig, the side of stopper is equipped with the chamfer, the lower extreme of stopper is equipped with the location boss. The chamfer angle of the side surface of the limiting block enables the workpiece to be placed more easily.

Furthermore, foretell multistation CNC processes quick positioning jig, the location boss is the rhombus, the location boss cooperatees with the spacing groove that is located on the PMKD and corresponds with the stopper. The diamond positioning boss reduces the matching area, so that the limiting block is easier to mount.

Further, foretell multistation CNC processing quick positioning jig, PMKD's top diagonal position is equipped with rings, whole tool is conveniently dismantled to rings.

Further, foretell multistation CNC processing quick positioning jig, PMKD one side is equipped with the solenoid valve, be equipped with the trachea on the interface of first cylinder and second cylinder to be connected with the solenoid valve through the trachea, be equipped with cross air pipe joint and Y type joint on the trachea. The first air cylinder and the second air cylinder are connected with the electromagnetic valve through air pipes, the cross air pipe joint and the Y-shaped joint which are arranged between the air pipes are connected with the same air inlet or air outlet of the electromagnetic valve and are uniformly controlled by the same electromagnetic valve, the electromagnetic valve simultaneously controls the first air cylinder and the second air cylinder, the side pressure plate and the middle pressure plate simultaneously press the workpiece, and the phenomenon that the workpiece is unevenly stressed and deviates is avoided.

The technical scheme shows that the utility model has the following beneficial effects:

1. according to the multi-station CNC machining rapid positioning jig, the limiting blocks, the middle pressing blocks and the side pressing blocks limit the positioning of the workpiece, complex operation of workers is not needed, the workpiece can be rapidly taken out, placed and positioned, and the working efficiency is improved;

2. according to the multi-station CNC machining rapid positioning jig, the plurality of workpiece machining stations are arranged on the fixing base plate, a plurality of workpieces can be machined at one time, and the workpiece dismounting time is reduced, so that the machine tool standby time is reduced, and the workpiece efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of a multi-station CNC machining rapid positioning fixture according to the present invention;

FIG. 2 is a schematic front view of a multi-station CNC machining rapid positioning fixture according to the present invention;

FIG. 3 is an enlarged view of a part A of the multi-station CNC machining rapid positioning fixture of the present invention;

FIG. 4 is a schematic side view of a multi-station CNC machining rapid positioning fixture according to the present invention;

FIG. 5 is a schematic top view of a fixing base plate of the multi-station CNC machining rapid positioning fixture according to the present invention;

FIG. 6 is a schematic perspective view of a limiting block of the multi-station CNC machining rapid positioning fixture according to the present invention;

FIG. 7 is a schematic perspective view of a middle press plate of the multi-station CNC machining rapid positioning fixture according to the present invention;

in the figure: the device comprises a fixed bottom plate 1, a limiting groove 11a, a support 2, a first air cylinder 3, a first connecting shaft 4, a lateral pressure plate 5, a guide hole 51, a lateral pressure block 6, a second air cylinder 7, a second connecting shaft 8, a middle pressure plate 9, a rectangular groove 91, a switching pressure plate 10, a middle pressure block 11, a limiting block 12, a positioning boss 121, a guide sleeve 13, a snap ring 14, a first guide rod 15, a second guide rod 16, a workpiece 17, a lifting ring 18, an electromagnetic valve 19, a gas pipe 20, a cross gas pipe 21 structure and a 22Y-shaped gas pipe joint.

Detailed Description

The utility model is further elucidated with reference to the drawings and the embodiments.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

As shown in fig. 1-7, the multi-station CNC machining rapid positioning jig of the utility model comprises a fixed bottom plate 1, support seats 2, first air cylinders 3, first connecting shafts 4, side pressure plates 5, side pressure blocks 6, second air cylinders 7, second connecting shafts 8, a middle pressure plate 9, a transfer pressure plate 10, a middle pressure block 11, a limiting block 12 and workpieces 17, wherein two groups of workpiece 17 processing stations are arranged on the fixed bottom plate 1, the two groups of workpieces 17 are symmetrically arranged with the fixed bottom plate 1 in a transverse center, each group of workpieces 17 is arranged in an array, a group of support seats 2 are arranged below the fixed bottom plate 1, the support seats 2 are connected with the fixed bottom plate 1 through countersunk screws, a group of first air cylinders 3 are arranged at four corners below the fixed bottom plate 1, piston rods of the first air cylinders 3 penetrate through the fixed bottom plate 1 and are connected with the first connecting shafts 4, the side pressure plates 5 are symmetrically arranged at the front and back sides of the fixed bottom plate 1 in the transverse center, the first connecting shaft 4 at the front side is connected with the two ends of the side pressure plate 5 at the front side, the first connecting shaft 4 at the rear side is connected with the two ends of the side pressure plate 5 at the rear side, a side pressure block 6 corresponding to a group of workpieces 17 is arranged below the side pressure plate 5, a group of second cylinders 7 are arranged at the transverse center position below the fixed bottom plate 1, a middle pressure plate 9 is arranged at the transverse center position above the fixed bottom plate 1, a piston rod of the second cylinder 7 penetrates through the fixed bottom plate 1 and is connected with a second connecting shaft 8, the second connecting shaft 8 is connected with two ends of a middle pressure plate 9, a group of switching pressure plates 10 corresponding to a workpiece 17 are fixed on the middle pressure plate 9, the front and the back sides of the switching pressing plate 10 are provided with middle pressing blocks 11, the outer side of the workpiece 17 is provided with a group of limiting blocks 12, the limiting block 12 limits the position of the workpiece 17 and is fixed on the fixed bottom plate 1 through a countersunk head screw. After the parts on the positioning jig are installed, the workpiece 17 is placed between the limiting blocks 12, the position of the workpiece is limited, the first air cylinder 3 and the second air cylinder 7 are started simultaneously, and the workpiece is pressed simultaneously, so that the workpiece is completely positioned, complex operation of workers is not needed, and the workpiece 17 can be quickly taken out, placed and positioned; and a plurality of workpiece 17 machining positions are arranged on the fixed base plate 1, so that a plurality of workpieces 17 can be simultaneously positioned and machined at one time, the workpiece dismounting and positioning time is shortened, the machine tool standby time is shortened, and the workpiece efficiency is greatly improved.

Example 2

A group of guide holes 51 are formed in the side pressing plates 5 and the middle pressing plate 9, guide sleeves 13 are arranged in the guide holes 51, the guide sleeves 13 are matched with the guide holes 51, and clamping rings 14 are arranged in clamping grooves at the lower ends of the guide sleeves 13.

A first guide rod 15 is arranged between the first connecting shafts 4, and the first guide rod 15 is inserted into the guide sleeve 13 on the side pressing plate 5 and is connected with the guide sleeve 13 in a sliding manner. The first guide rod 15 is matched with the guide sleeve 13, so that the stability of the first air cylinder 3 for lifting the side pressure plate 5 is improved, and the positioning precision is improved.

A second guide rod 16 is arranged between the second connecting shafts 8, and the second guide rod 16 is inserted into the guide sleeve 13 on the middle press plate 9 and is connected with the guide sleeve 13 in a sliding manner. The second guide rod 16 is matched with the guide sleeve 13, so that the stability of the second cylinder 7 for lifting the middle pressing plate 9 is improved, and the positioning precision is improved.

The middle press plate 9 is provided with a rectangular groove 91 corresponding to the switching press plate 10, and the switching press plate 10 is fixed in the rectangular groove 91 and matched with the rectangular groove 91.

The side pressing blocks 6 and the middle pressing block 11 are made of elastic plastics. The elastic plastic can avoid damaging the surface of the workpiece 17 when pressing the workpiece 17, has certain buffer force and reduces vibration during processing.

The side of stopper 12 is equipped with the chamfer, the lower extreme of stopper 12 is equipped with location boss 121. The chamfer on the side of the limiting block 12 enables the workpiece 17 to be placed more easily.

The positioning boss 121 is a diamond shape, and the positioning boss 121 is matched with a limiting groove 11a which is arranged on the fixed base plate 1 and corresponds to the limiting block 12. The diamond-shaped positioning boss 121 reduces the matching area, so that the limiting block 12 is easier to mount.

The upper diagonal position of the fixed bottom plate 1 is provided with a lifting ring 18, and the lifting ring 18 is convenient for dismounting the whole jig.

The air cylinder fixing device is characterized in that an electromagnetic valve 19 is arranged on one side of the fixing bottom plate 1, an air pipe 20 is arranged on a joint of the first air cylinder 3 and the second air cylinder 7 and is connected with the electromagnetic valve 19 through the air pipe 20, and a cross air pipe joint 21 and a Y-shaped joint 22 are arranged on the air pipe 20. The first air cylinder 7 and the second air cylinder 7 are connected with the electromagnetic valve 19 through air pipes 20, connected with the same air inlet or air outlet on the electromagnetic valve 19 through a cross air pipe joint 21 and a Y-shaped joint 22 which are arranged between the air pipes 20 and controlled by the same electromagnetic valve in a unified mode, the electromagnetic valve 19 controls the actions of the first air cylinder 3 and the second air cylinder 7 at the same time, the side pressing plate 5 and the middle pressing plate 9 press workpieces at the same time, and deviation caused by uneven stress is avoided.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims

1. The utility model provides a quick positioning jig of multistation CNC processing which characterized in that: the device comprises a fixed base plate (1), a support (2), first cylinders (3), a first connecting shaft (4), a side pressure plate (5), a side pressure block (6), a second cylinder (7), a second connecting shaft (8), a middle pressure plate (9), a switching pressure plate (10), a middle pressure block (11), a limiting block (12) and workpieces (17), wherein two groups of workpieces (17) are arranged on the fixed base plate (1), the two groups of workpieces (17) are symmetrically arranged in the transverse center of the fixed base plate (1), each group of workpieces (17) is arranged in an array manner, a group of supports (2) are arranged below the fixed base plate (1), the supports (2) are connected with the fixed base plate (1) through countersunk screws, a group of first cylinders (3) are arranged below the fixed base plate (1), piston rods of the first cylinders (3) penetrate through the fixed base plate (1) and are connected with the first connecting shaft (4), lateral pressing plates (5) are symmetrically arranged on the front side and the rear side of the upper portion of the fixed base plate (1) in a transverse center mode, the first connecting shaft (4) on the front side is connected with the two ends of the lateral pressing plates (5) on the front side, the first connecting shaft (4) on the rear side is connected with the two ends of the lateral pressing plates (5) on the rear side, lateral pressing blocks (6) corresponding to a group of workpieces (17) are arranged below the lateral pressing plates (5), a group of second air cylinders (7) are arranged on the lower portion of the fixed base plate (1) in the transverse center mode, a middle pressing plate (9) is arranged on the upper portion of the fixed base plate (1) in the transverse center mode, piston rods of the second air cylinders (7) penetrate through the fixed base plate (1) and are connected with second connecting shafts (8), the second connecting shafts (8) are connected with the two ends of the middle pressing plates (9), a group of switching pressing plates (10) corresponding to the workpieces are fixed on the middle pressing plates (9), middle pressing blocks (11) are arranged on the front side and the rear side of the lower portion of the switching pressing plates (10), the outer side of the workpiece (17) is provided with a group of limiting blocks (12), and the limiting blocks (12) limit the position of the workpiece (17) and are fixed on the fixed bottom plate (1) through countersunk screws.

2. The multi-station CNC machining rapid positioning jig of claim 1, characterized in that: the side pressure plate (5) and the middle pressure plate (9) are provided with a group of guide holes (51), guide sleeves (13) are arranged in the guide holes (51), the guide sleeves (13) are matched with the guide holes (51), and clamping rings (14) are arranged in clamping grooves at the lower ends of the guide sleeves (13).

3. The multi-station CNC machining rapid positioning jig of claim 2, characterized in that: and a first guide rod (15) is arranged between the first connecting shafts (4), and the first guide rod (15) is inserted into a guide sleeve (13) on the side pressing plate (5) and is in sliding connection with the guide sleeve (13).

4. The multi-station CNC machining rapid positioning jig of claim 2, characterized in that: and a second guide rod (16) is arranged between the second connecting shafts (8), and the second guide rod (16) is inserted into a guide sleeve (13) on the middle pressure plate (9) and is in sliding connection with the guide sleeve (13).

5. The multi-station CNC machining rapid positioning jig of claim 1, characterized in that: the middle pressure plate (9) is provided with a rectangular groove (91) corresponding to the switching pressure plate (10), and the switching pressure plate (10) is fixed in the rectangular groove (91) and matched with the rectangular groove (91).

6. The multi-station CNC machining rapid positioning jig of claim 1, characterized in that: the side pressing blocks (6) and the middle pressing block (11) are made of elastic plastic.

7. The multi-station CNC machining rapid positioning jig of claim 1, characterized in that: the side of the limiting block (12) is provided with a chamfer, and the lower end of the limiting block (12) is provided with a positioning boss (121).

8. The multi-station CNC machining rapid positioning jig of claim 7, characterized in that: the positioning boss (121) is rhombic, and the positioning boss (121) is matched with a limiting groove (11 a) which is formed in the fixed base plate (1) and corresponds to the limiting block (12).

9. The multi-station CNC machining rapid positioning jig of claim 1, characterized in that: and a hanging ring (18) is arranged at the diagonal position above the fixed bottom plate (1).

10. The multi-station CNC machining rapid positioning jig of claim 1, characterized in that: the air cylinder is characterized in that an electromagnetic valve (19) is arranged on one side of the fixed base plate (1), an air pipe (20) is arranged on an interface of the first air cylinder (3) and the second air cylinder (7) and is connected with the electromagnetic valve (19) through the air pipe (20), and a cross air pipe joint (21) and a Y-shaped joint (22) are arranged on the air pipe (20).