CN217122493U

CN217122493U - Special fixture for milling machine

Info

Publication number: CN217122493U
Application number: CN202220448863.5U
Authority: CN
Inventors: 王建; 司实现; 闫亮; 李巍; 金鹏; 刘洪飞; 黄全印
Original assignee: Yituo Luoyang Hydraulic Transmission Co ltd
Current assignee: Yituo Luoyang Hydraulic Transmission Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-08-05
Anticipated expiration: 2032-03-03

Abstract

The utility model relates to an anchor clamps technical field's a special fixture for milling machine, comprising a base plate, movable fit has T type bolt about all at bottom plate both ends middle part, and the screw rod tip of T type bolt up to the screw rod of T type bolt is located the pole body screw-thread fit of bottom plate top has coupling nut, and the position that the bottom plate is located between two T type bolts is equipped with the middle dog that sets up along bottom plate length direction, and face both sides middle part all is equipped with can realize the clamping device that the centre gripping waited to process the work piece with middle dog cooperation on the bottom plate. The utility model realizes the function of clamping the workpiece to be processed by matching the clamping device with the middle stop block, realizes the preliminary fixation of the workpiece to be processed, and realizes the transverse positioning function of the workpiece to be processed by setting the middle stop block; the T-shaped bolt, the middle stop block, the side pressure plate and the pressing piece are arranged, so that two workpieces to be processed can be clamped and fixed at a time, and the processing efficiency is effectively improved.

Description

Special fixture for milling machine

Technical Field

The utility model relates to an anchor clamps technical field especially relates to a special fixture for milling machine.

Background

The milling machine fixture is used for fixing a machining object in the machining process of the machining object on a milling machine, so that the machining object occupies a correct position, planes, grooves, splines and various forming surfaces on parts can be machined, and the milling machine fixture is one of the most commonly used fixtures.

However, in the working procedure of milling the end face of the outer shell of the machining part and the hollow circular table top in the middle, the appearance of a part is special, the conventional clamping fixture cannot meet the technical requirements for machining the part, only one workpiece can be clamped at each time, the consistency of the machined part is high, and meanwhile, the production efficiency is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a special fixture for milling machine for solving the above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a special milling machine fixture comprises a bottom plate, wherein T-shaped bolts are movably matched with the middle parts of two ends of the bottom plate up and down, the end parts of screws of the T-shaped bolts face upwards, a connecting nut is matched with a rod body of the screw of the T-shaped bolt, which is positioned above the bottom plate, in a threaded manner, a middle stop block arranged along the length direction of the bottom plate is arranged at the position, between the two T-shaped bolts, of the upper plate surface of the bottom plate, and clamping devices capable of being matched with the middle stop block to clamp a workpiece to be processed are arranged on the middle parts of two sides of the bottom plate;

the T-shaped bolt pressing device is characterized by further comprising two side pressing plates, the two side pressing plates are arranged at intervals along the length direction of the bottom plate, the outer ends of the side pressing plates are lapped at the screw end portions of the corresponding T-shaped bolts, the middle portions of the inner ends of the side pressing plates are provided with abdicating notches matched with the middle stop blocks, and the bottom plate is provided with a pressing piece capable of driving the inner ends of the side pressing plates to move downwards to press a workpiece to be machined downwards.

Preferably, the pressing piece comprises a screw and a compression nut, a waist-shaped hole is formed in the side pressure plate corresponding to the position between the middle stop block and the corresponding T-shaped bolt and arranged along the length direction of the side pressure plate, the hole width of the waist-shaped hole is matched with the diameter of the rod body of the screw, the lower end of the screw movably penetrates through the waist-shaped hole, the end of the screw is fixedly connected with the bottom plate correspondingly, and the rod body of the screw above the corresponding side pressure plate is in threaded fit with the compression nut used for pressing the side pressure plate downwards.

Preferably, the rod body of the screw rod between the bottom plate and the corresponding side pressure plate is sleeved with a spring.

Preferably, the position of the lower plate surface of the side pressure plate, which is positioned outside the waist-shaped hole, is provided with a waist-shaped blind hole matched with a screw of the T-shaped bolt along the length direction of the waist-shaped hole.

Preferably, clamping device includes fixed block, centre gripping bolt, the fixed block corresponds the rigid coupling and sets up along bottom plate width direction at bottom plate one side face middle part, and the screw rod of centre gripping bolt and fixed block screw-thread fit to dog in the middle of the screw rod tip orientation of centre gripping bolt.

Preferably, the end of the screw of the clamping bolt is provided with a guard.

Preferably, the upper plate surface of the bottom plate is further provided with a positioning piece for positioning the workpiece to be processed along the length direction of the bottom plate.

Has the advantages that:

1. the clamping device is matched with the middle stop block to realize the function of clamping the workpiece to be machined, so that the workpiece to be machined is preliminarily fixed, and the middle stop block is arranged to realize the function of transversely positioning the workpiece to be machined;

2. the T-shaped bolt, the middle stop block, the side pressure plate and the pressing piece are arranged, so that two workpieces to be processed can be clamped and fixed at a time, and the processing efficiency is effectively improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of section I of FIG. 3;

fig. 5 is a schematic structural view after the workpiece is clamped.

The reference numerals are explained below:

1. a base plate; 2. a T-bolt; 3. a connecting nut; 4. a middle stop block; 5. a clamping device; 51. a fixed block; 52. clamping the bolt; 6. side pressing plates; 7. a pressing part; 71. a screw; 72. a compression nut; 73. a spring; 8. a positioning member.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are 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 therefore, should not be construed as limiting the present invention.

Embodiment one, as shown in fig. 1 to 5, a special milling machine fixture comprises a bottom plate 1, the bottom plate 1 has a certain thickness, preferably, the thickness is 8 to 15mm, T-shaped bolts 2 are movably fitted in the middle of two ends of the bottom plate 1 up and down, the screw ends of the T-shaped bolts 2 face upwards, a connecting nut 3 is screwed on a rod body of a screw of the T-shaped bolt 2 above the bottom plate 1, specifically, through holes matched and vertical with the T-shaped bolts 2 are provided in the middle of two ends of the bottom plate 1, the screw ends of the T-shaped bolts 2 face upwards and movably penetrate through the through holes, a connecting nut 3 is screwed on a rod body of a screw of the T-shaped bolt 2 above the bottom plate 1, preferably, the length of the rod body of the T-shaped bolt 2 above the bottom plate 1 is not much different from the distance from the lower end face of a workpiece to be machined to the bottom of a straight groove of the workpiece to be machined, and specifically, so that the head of the T-shaped bolt 2 can be clamped in an inverted T-shaped chute of a table surface of a milling machine, then, the connecting nut 3 is rotated to fix the bottom plate 1 on the table top of the milling machine table, a middle stop block 4 arranged along the length direction of the bottom plate 1 is arranged at the position, between the two T-shaped bolts 2, of the upper plate surface of the bottom plate 1, preferably, the middle stop block 4 is in a long strip shape, the side surface of the middle stop block 4 can be attached to the inner side surface of a workpiece to be processed, the height of the middle stop block 4 is lower than the thickness of the workpiece to be processed, a clamping device 5 capable of being matched with the middle stop block 4 to clamp the workpiece to be processed is arranged in the middle of each of two sides of the bottom plate 1, the function of clamping the workpiece to be processed can be realized through the matching of the clamping device 5 and the middle stop block 4, the primary fixing of the workpiece to be processed is realized, the middle stop block 4 is arranged, the transverse positioning function of the workpiece to be processed is realized, and the transverse direction is the width direction of the bottom plate 1;

the processing tool also comprises two side pressure plates 6, the two side pressure plates 6 are arranged at intervals along the length direction of the bottom plate 1, the outer ends of the lower plate surfaces of the side pressure plates 6 are lapped at the screw rod end parts of the corresponding T-shaped bolts 2, the middle parts of the inner ends of the side pressure plates 6 are provided with abdicating notches matched with the middle stop blocks 4, concretely, the two side edges of the abdicating notches of the side pressure plates 6 are correspondingly positioned at the two outer sides of the middle stop blocks 4, so that the two side edges of the abdicating notches are pressing claws for pressing workpieces, preferably, the bottoms of the two side edges of the abdicating notches are provided with a profile modeling of the positions corresponding to the workpieces to be processed, the workpieces to be processed are prevented from being crushed, concretely, the processing tool is matched with the bottoms of straight grooves of the workpieces to be processed, preferably, the thickness of the side pressure plates 6 or the two side edges of the abdicating notches are smaller than the depth of the straight grooves of the workpieces to be processed, the inner ends of the corresponding side pressure plates 6 are arranged at the positions of the bottom plate 1 between the middle stop blocks 4 and the corresponding T-shaped bolts 2 and can drive the corresponding side pressure plates 6 to move downwards, the pressing piece 7 of the workpiece to be processed is pressed downwards.

In the structure, when in use, firstly, two workpieces to be processed are respectively prevented from being arranged on the upper plate surface of the bottom plate 1 and are respectively positioned at two sides of the middle stop block 4, then the inner end surfaces of the workpieces to be processed are attached to the side edges of the middle stop block 4, the inner ends of the workpieces to be processed are right-angled ends of the workpieces to be processed, the longitudinal positions of the workpieces to be processed are ensured to be proper, then the inner end surfaces of the workpieces to be processed are tightly attached to the side edges of the middle stop block 4 through the clamping device 5, then the two inner end edges of the side pressing plates 6 are respectively pressed in the straight grooves of the two workpieces to be processed, then the side pressing plates 6 are pressed through the pressing pieces 7, as the outer ends of the lower plate surfaces of the side pressing plates 6 are in abutting fit with the screw end parts of the T-shaped bolts 2, the inner ends of the side pressing plates 6 move downwards, the workpieces to be processed positioned at two sides of the middle stop block 4 are pressed, preferably, two inner ends of the side pressing plates 6, namely, the protective layers are arranged on the two side edges of the abdicating notch to prevent the machined workpiece from being pressed out of the pit.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 1 to 5, the pressing member 7 includes a screw rod 71 and a pressing nut 72, the side pressing plate 6 is provided with a waist-shaped hole corresponding to a position between the intermediate block 4 and the corresponding T-shaped bolt 2, the waist-shaped hole is arranged along the length direction of the side pressing plate 6, the hole width of the waist-shaped hole matches with the diameter of the shaft of the screw rod 71, specifically, the hole width of the waist-shaped hole is slightly larger than the shaft diameter of the screw rod 71, the lower end of the screw rod 71 movably penetrates through the waist-shaped hole, the end of the screw rod 71 is fixedly connected with the bottom plate 1, the shaft of the screw rod 71 above the corresponding side pressing plate 6 is in threaded fit with the pressing nut 72 for pressing down the side pressing plate 6, so that the pressing nut 72 can be rotated to move down and further press the side pressing plate 6 downward, thereby realizing the function of moving the inner end of the side pressing plate 6 downward, the arrangement of the waist-shaped hole can move the position of the side pressing plate 6 according to actual needs, the clamp can be suitable for workpieces to be processed with different sizes, and certain practicability is improved;

the rod body of the screw 71, which is positioned between the bottom plate 1 and the corresponding side pressure plate 6, is sleeved with a spring 73, so that the side pressure plate 6 can be supported by the spring 73, the inner end of the side pressure plate 6 is prevented from falling quickly and colliding on a workpiece to be processed, and the workpiece to be processed is prevented from being damaged, preferably, the center of the side pressure plate 6 corresponds to the outer side of the screw 71;

the waist-shaped blind holes matched with the screws of the T-shaped bolts 2 are formed in the positions, located on the outer sides of the waist-shaped holes, of the lower plate surface of the side pressing plate 6 along the length direction of the lower plate surface, so that the T-shaped bolts 2 can be effectively prevented from being separated from the lower plate surface of the side pressing plate 6 when the compression nuts 72 are rotated.

The pressing piece 7 can also be a compression bolt, a waist-shaped hole which is arranged along the length direction of the bottom plate 1 is formed in the position, between the middle stop block 4 and the corresponding T-shaped bolt 2, of the side pressure plate 6, the width of the waist-shaped hole is located between the diameter of a screw rod of the compression bolt and the diameter of the head of the compression bolt, the end part of the screw rod of the compression bolt movably penetrates through the waist-shaped hole and is in threaded fit with the bottom plate 1, and therefore the compression bolt can be rotated, the head of the compression bolt presses the side pressure plate 6 downwards, and the function of compressing materials through the side pressure plate 6 is achieved.

In the third embodiment, on the basis of the first embodiment, as shown in fig. 1 to 5, the clamping device 5 includes a fixing block 51 and a clamping bolt 52, the fixing block 51 is fixedly connected to the middle of the upper plate surface on one side of the bottom plate 1 correspondingly, the clamping bolt 52 is arranged along the width direction of the bottom plate 1, a screw of the clamping bolt 52 is in threaded fit with the fixing block 51, and the end of the screw of the clamping bolt 52 faces the middle stopper 4, so that the clamping bolt 52 can be rotated to move the clamping bolt 52 inwards, so that the clamping bolt 52 extrudes the workpiece to be machined, and the function of longitudinally pressing the workpiece to be machined is completed;

the end of the shank of the clamp bolt 52 is provided with a guard so that the clamp bolt 52 is prevented from pinching the workpiece to be machined.

Fourth embodiment, on the basis of the first embodiment, as shown in fig. 1 to 5, the positioning member 8 for positioning the workpiece to be processed along the length direction of the bottom plate 1 is further disposed on the upper plate surface of the bottom plate 1, so that the workpiece to be processed can be positioned along the length direction of the bottom plate 1 by the positioning member 8, and the workpiece to be processed is more conveniently clamped, preferably, the height of the positioning member 8 is smaller than the thickness of the workpiece to be processed.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a special fixture for milling machine which characterized in that: the machining tool comprises a bottom plate (1), wherein T-shaped bolts (2) are movably matched with the middle parts of two ends of the bottom plate (1) up and down, the screw ends of the T-shaped bolts (2) face upwards, connecting nuts (3) are matched with the screw rods of the T-shaped bolts (2) in a threaded mode, the rod bodies of the screw rods, which are positioned above the bottom plate (1), of the T-shaped bolts, a middle stop block (4) arranged along the length direction of the bottom plate (1) is arranged on the position, between the two T-shaped bolts (2), of the upper plate surface of the bottom plate (1), and clamping devices (5) capable of being matched with the middle stop block (4) to clamp a workpiece to be machined are arranged in the middle parts of two sides of the bottom plate (1);

the processing fixture is characterized by further comprising two side pressing plates (6), the two side pressing plates (6) are arranged at intervals along the length direction of the bottom plate (1), the outer ends of the plate surfaces of the side pressing plates (6) are lapped at the screw end parts of the corresponding T-shaped bolts (2), the middle parts of the inner ends of the side pressing plates (6) are provided with abdicating notches matched with the middle stop blocks (4), and the bottom plate (1) is provided with a pressing piece (7) which can drive the inner ends of the side pressing plates (6) to move downwards to press a workpiece to be processed downwards.

2. A jig special for a milling machine according to claim 1, wherein: the pressing piece (7) comprises a screw rod (71) and a compression nut (72), a waist-shaped hole which is formed along the length direction of the side pressing plate (6) is formed in a position, corresponding to the position between the middle stop block (4) and the corresponding T-shaped bolt (2), of the side pressing plate (6), the hole width of the waist-shaped hole is matched with the diameter of a rod body of the screw rod (71), the lower end of the screw rod (71) movably penetrates through the waist-shaped hole, the end of the screw rod (71) is fixedly connected with the bottom plate (1) correspondingly, and the rod body, located above the corresponding side pressing plate (6), of the screw rod (71) is in threaded fit with the compression nut (72) used for pressing down the side pressing plate (6).

3. A jig special for a milling machine according to claim 2, wherein: and a spring (73) is sleeved on a rod body of the screw rod (71) between the bottom plate (1) and the corresponding side pressure plate (6).

4. A jig special for a milling machine according to claim 2, wherein: waist-shaped blind holes matched with the screws of the T-shaped bolts (2) are formed in the positions, located on the outer sides of the waist-shaped holes, of the lower plate surfaces of the side pressure plates (6) along the length direction of the waist-shaped holes.

5. A jig special for a milling machine according to claim 1, wherein: clamping device (5) are including fixed block (51), centre gripping bolt (52), fixed block (51) correspond the rigid coupling and go up face middle part on bottom plate (1) one side, and centre gripping bolt (52) set up along bottom plate (1) width direction, and the screw rod and fixed block (51) screw-thread fit of centre gripping bolt (52) to dog (4) in the middle of the screw rod tip orientation of centre gripping bolt (52).

6. A special jig for milling machine according to claim 5, wherein: the end part of the screw shaft of the clamping bolt (52) is provided with a protective piece.

7. A jig special for a milling machine according to claim 1, wherein: the upper plate surface of the bottom plate (1) is also provided with a positioning piece (8) for positioning a workpiece to be processed along the length direction of the bottom plate (1).