CN215880810U

CN215880810U - Milling machine fixture

Info

Publication number: CN215880810U
Application number: CN202121761547.5U
Authority: CN
Inventors: 宋阳
Original assignee: Dalian Pengyi Precision Machinery Co ltd
Current assignee: Dalian Pengyi Precision Machinery Co ltd
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-02-22
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a milling machine fixture which comprises a limiting structure and a clamping structure, wherein the clamping structure is detachably arranged on the limiting structure; the utility model relates to the technical field of machining tools, in particular to a milling machine fixture which can adjust, clamp and fix workpieces with various shapes and sizes through a clamping structure, does not need to be disassembled during milling cutter machining, and can rotate 360 degrees in a single direction by means of a limiting structure to adjust the machining position, so that the purposes of saving machining time and labor force are achieved.

Description

Milling machine fixture

Technical Field

The utility model relates to the technical field of machining tools, in particular to a milling machine fixture.

Background

The milling machine mainly refers to a machine tool for processing various surfaces of a workpiece by using a milling cutter; generally, the milling cutter mainly moves by rotary motion, and the movement of the workpiece and the milling cutter is feeding motion; it can process plane, groove, various curved surfaces, gear, etc.;

when the milling machine works, a workpiece is arranged on a workbench, namely the workpiece is fixed through a clamp; the milling machine has the advantages that the milling machine can mill, drill and bore a workpiece, the existing milling machine clamp cannot rotate and adjust the workpiece after the workpiece is fixed, the machining position is adjusted, and clamping is carried out again through disassembling, so that the existing milling machine clamp is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a milling machine fixture, which aims to solve the problems that workpieces can be conveniently clamped and fixed, and the workpieces can be rotated and adjusted, so that the machining of different positions on the same plane is convenient.

In order to achieve the purpose, the utility model provides the following technical scheme: a milling machine fixture comprises a limiting structure and a clamping structure, wherein the clamping structure is detachably arranged on the limiting structure;

the limiting structure comprises a limiting seat, a shaft lever, a bottom shell, a ratchet wheel, a pair of limiting ribs with the same structure, a pair of pawls with the same structure, a top cover, two pairs of first bolts with the same structure, a nut and a moving rod;

the limiting seat is of a round platform structure, the central part of the lower wall of the limiting seat is of a hollow structure, the central part of the front side wall of the limiting seat is provided with a T-shaped moving groove communicated with the bottom, the left side wall and the right side wall of the limiting seat are respectively provided with a fixed plate, one end of each fixed plate is provided with a pair of fixing through holes with the same structure, the central part of the upper wall of the limiting seat is provided with an inwards concave rotating groove, the central part of the inner lower wall of the rotating groove is provided with a shaft hole, one end of the shaft rod is movably penetrated in the shaft hole of the limiting seat, the central part of the upper wall of one end of the shaft rod is provided with a mounting threaded hole, the bottom shell is of a circular bowl-shaped structure, two pairs of transfer columns with the same structure are equidistantly arranged on the inner lower wall of the rotating groove, the bottom shell is movably embedded in the lower wall of the limiting column and movably sleeved on the other end of the shaft rod, and the ratchet wheel is movably sleeved on the shaft rod, the pair of limiting ribs are respectively and fixedly arranged on the inner lower wall of the bottom shell and are respectively and symmetrically arranged between every two switching columns, one end of each pawl is movably sleeved on one switching column, the other end of each pawl is attached to the limiting rib, the other end of each pawl is respectively positioned on two sides of the ratchet wheel and is meshed with the ratchet wheel, the top cover is movably buckled on the bottom shell and is movably sleeved on the other end of the shaft rod, one end of each first bolt is movably penetrated in the top cover in an equidistant mode and movably screwed in the switching columns, the nut is movably sleeved on the other end of the shaft rod and is screwed with the shaft rod and positioned below the bottom shell, and one end of the moving rod movably penetrates in a T-shaped moving groove in the front wall of the limiting seat and is fixedly welded on the side wall of the bottom shell.

Preferably, the clamping structure comprises a rotating table, a second bolt and two groups of clamping components with the same structure;

the rotary table is of a T-shaped circular table structure, mounting arms with the same structure are arranged at the left end and the right end of the top of the rotary table, chutes communicated with the upper wall and the shaped circular table are arranged at the center of the side walls at the two ends of each mounting arm, the bottom end of the rotary table is movably inserted into the upper wall of the limiting seat to rotate in the groove, a counter sink is arranged at the center of the upper wall of the rotary table, first fit grooves communicated with each other are opened and closed on the two sides of the counter sink at the bottom, the bottom of the rotary table is movably sleeved on one end of a shaft rod, one end of a second bolt is movably penetrated through the counter sink of the rotary table and movably screwed in a mounting threaded hole at one end of the shaft rod, and the clamping assemblies are detachably arranged in the chutes of the mounting arms respectively and are located on the two sides of the rotary table and are symmetrical to each other.

Preferably, the clamping assembly comprises a sliding block, a clamping frame, a limiting bolt and a clamping screw rod;

the slider activity inlays and installs in the installation arm spout, and upper wall center part department sets up the regulation screw hole that link up, clamping frame one end is fixed to be welded in the slider upper wall, and one end center part department sets up the regulation through-hole corresponding with the regulation screw hole that link up to other end center part department equidistance sets up two pairs of centre gripping screw holes that the structure is the same, spacing bolt one end activity runs through in clamping frame one end regulation through-hole, and the activity connects soon in slider upper wall regulation threaded hole, clamping screw one end activity runs through in clamping frame other end centre gripping threaded hole, and connects soon mutually with the clamping frame.

Preferably, the sliding block is of a T-shaped structure, and the height of the sliding block is larger than that of the sliding groove.

Preferably, the diameter of the top of the rotating platform is larger than that of the limiting seat.

Preferably, the diameter of one end of the shaft lever is larger than that of the other end of the shaft lever, the central parts of the two ends of the shaft lever are fixedly provided with limiting pieces, and the left side wall and the right side wall of one end of the shaft lever and the central parts of the two ends of the shaft lever are respectively provided with a conjunction block.

Compared with the prior art, the utility model has the beneficial effects that: this milling machine fixture can make the work piece of multiple shape and size adjust the centre gripping fixed through clamping structure to in milling cutter processing, can need not dismantle, carry out one-way 360 degrees rotations with the help of limit structure, adjust the processing position, and then realize saving process time and save labour's purpose.

Drawings

FIG. 1 is a schematic view of an assembly structure of the present invention;

FIG. 2 is a schematic view of the split structure of the present invention;

fig. 3 is a schematic view of the mounting structure of the present invention.

In the figure: 1. the device comprises a limiting structure, 10, a limiting seat, 11, a shaft rod, 12, a bottom shell, 13, a ratchet wheel, 14, a limiting rib, 15, a pawl, 16, a top cover, 17, a first bolt, 18, a nut, 19, a moving rod, 2, a clamping structure, 21, a rotating table, 22, a second bolt, 23, a clamping assembly, 231, a sliding block, 232, a clamping frame, 233, a limiting bolt, 234 and a clamping screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a milling machine fixture comprises a limiting structure 1 and a clamping structure 2, wherein the clamping structure 2 is detachably arranged on the limiting structure 1; the limiting structure 1 comprises a limiting seat 10, a shaft lever 11, a bottom shell 12, a ratchet 13, a pair of limiting ribs 14 with the same structure, a pair of pawls 15 with the same structure, a top cover 16, two pairs of first bolts 17 with the same structure, a nut 18 and a moving rod 19; the limiting seat 10 is of a circular truncated cone structure, the central part of the lower wall is of a hollow structure, the central part of the front side wall of the limiting seat is provided with a T-shaped moving groove communicated with the bottom, the left side wall and the right side wall of the limiting seat 10 are respectively provided with a fixed plate, one end of each fixed plate is provided with a pair of fixing through holes with the same structure, the central part of the upper wall of the limiting seat 10 is provided with an inwards concave rotating groove, the central part of the inner lower wall of the rotating groove is provided with an axle hole, one end of a shaft rod 11 is movably penetrated in the axle hole of the limiting seat 10, the central part of the upper wall of one end of the shaft rod is provided with a mounting threaded hole, the bottom shell 12 is of a circular bowl-shaped structure, the inner lower wall is equidistantly provided with two pairs of adapter columns with the same structure, the central part of the inner lower wall is provided with a first sleeve hole, the bottom shell 12 is movably embedded in the lower wall of the limiting column and movably sleeved on the other end of the shaft rod 11, and the ratchet 13 is movably sleeved on the shaft rod 11, the pair of limiting ribs 14 are respectively and fixedly arranged on the inner lower wall of the bottom shell 12 and are respectively and symmetrically arranged between every two switching columns, one end of each pawl 15 is movably sleeved on one of the switching columns, the other end of each pawl is attached to the corresponding limiting rib 14, the other end of each pawl is respectively positioned on two sides of each ratchet 13 and is meshed with the corresponding ratchet 13, the top cover 16 is movably buckled on the bottom shell 12 and is movably sleeved on the other end of the corresponding shaft rod 11, one end of each first bolt 17 is movably penetrated through the top cover 16 at equal intervals and is movably screwed in the corresponding switching column, the nut 18 is movably sleeved on the other end of the corresponding shaft rod 11 and is rotatably connected with the corresponding shaft rod 11 and is positioned below the bottom shell 12, and one end of the corresponding lifting rod 19 is movably penetrated in a T-shaped lifting groove in the front wall of the limiting seat 10 and is fixedly welded on the side wall of the bottom shell 12; the workpiece can be rotated in a single direction through the limiting structure 1.

Preferably, the clamping structure 2 further comprises a rotating table 21, a second bolt 22 and two sets of clamping assemblies 23 with the same structure;

revolving stage 21 is T type round platform structure, and the installation arm that the structure is the same is all seted up at both ends about its top, and the spout that is linked together with upper wall and type round platform is all seted up to installation arm both ends lateral wall central point department, revolving stage 21 bottom activity cartridge rotates the inslot in spacing seat 10 upper wall, and revolving stage 21 upper wall center department has seted up the counter sink, and bottom counter sink both sides all open and shut and have the first groove of agreeing with that is linked together, revolving stage 21 bottom activity suit is served in axostylus axostyle 11, second bolt 22 one end activity runs through in revolving stage 21 counter sink, and the activity connects in axostylus axostyle 11 one end installation threaded hole soon, two sets of centre gripping subassemblies 23 can dismantle respectively and settle in the spout of installation arm, and be located revolving stage 21 bilateral symmetry each other respectively.

Preferably, the clamping assembly 23 further includes a sliding block 231, a clamping frame 232, a limit bolt 233 and a clamping screw 234;

slider 231 activity inlays and installs in the installation arm spout, and upper wall center part department sets up the regulation screw hole that link up, clamping frame 232 one end is fixed to be welded in slider 231 upper wall, and one end center part department sets up the regulation through-hole that link up corresponding with the regulation screw hole, and two pairs of centre gripping screw holes that the structure is the same are seted up to other end center part department equidistance, spacing bolt 233 one end activity runs through in clamping frame 232 one end regulation through-hole, and the activity connects soon in slider 231 upper wall regulation screw hole, centre gripping screw 234 one end activity runs through in clamping frame 232 other end centre gripping screw hole, and connect soon mutually with clamping frame 232.

Preferably, the sliding block 231 is of a T-shaped structure, and the height of the sliding block is greater than the height of the sliding groove, so that the clamping frame 232 can be mounted on the sliding block, and one end of the clamping frame 232 is prevented from rubbing against the mounting wall.

Preferably, the diameter of the top of the rotating table 21 is larger than that of the limiting seat 10, so as to facilitate the bearing of the workpiece.

As preferred scheme, further, the diameter of one end of axostylus axostyle 11 is greater than the other end diameter, and both ends central point department is fixed and is provided with spacing piece to the agree with piece has all been seted up to axostylus axostyle 11 one end and central point department left and right sides wall for design application of force demand.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Example (b): as can be seen from the attached fig. 1-3 of the specification, firstly, the limiting seat 10 in the limiting structure 1 is installed on a milling machine, so that the rotation direction of the ratchet wheel 13 is opposite to the rotation direction of the milling cutter, and is opposite to the stress direction of the pawl 15; the workpiece can be placed above the rotating table 21 in the clamping structure 2, and the limit bolt 233 in the clamping assembly 23 can be rotated according to the size of the workpiece, so that the slide block 231 can move in the sliding groove of the rotating table 21, and the distance between the two clamping assemblies 23 is adjusted; the workpiece is further prevented from being placed on the rotary table 21, and the workpiece is pressed and fixed by rotating the clamping screw 234 on the clamping bracket 232; secondly, during the machining, the milling cutter contacts the workpiece to make the workpiece receive torsion, and then the torsion is transmitted to the rotating table 21; the shaft lever 11 is stressed by the fixation of the second bolt 22, but the bottom shell 12 and the top cover 16 which are tightly butted by the first bolt 17 can be fixedly limited on the shaft lever 11 by the nut 18 through the limit of the moving rod 19, and further force can be applied to the internal ratchet wheel 13, but the pawl 15 is attached on the ratchet wheel 13 through the internal limit rib 14, and the workpiece can not rotate through the limit of the pawl 15; when a workpiece needs to be rotated, the moving rod 19 is positioned at one end of the T-shaped moving groove and is locked and limited, so that the moving rod 19 can rotate towards the other side of the T-shaped moving groove around the shaft lever 11, meanwhile, the pawl 15 is driven to be attached to the ratchet 13 to rotate in the reverse direction, then, the moving rod 19 can rotate towards the original direction, the pawl 15 is meshed with the ratchet 13, the shaft lever 11 can be driven to rotate through the stress of the ratchet 13, and then, the workpiece on the rotating table 21 is driven to rotate to adjust the direction.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "two ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated; meanwhile, unless explicitly stated or limited otherwise, the terms "fixedly welded", "movably embedded", "movably sleeved", "movably penetrated", "screwed", and the like are to be understood in a broad sense, and for example, the terms may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A milling machine jig characterized in that: the clamping device comprises a limiting structure (1) and a clamping structure (2), wherein the clamping structure (2) is detachably arranged on the limiting structure (1);

the limiting structure (1) comprises a limiting seat (10), a shaft rod (11), a bottom shell (12), a ratchet wheel (13), a pair of limiting ribs (14) with the same structure, a pair of pawls (15) with the same structure, a top cover (16), two pairs of first bolts (17) with the same structure, a nut (18) and a moving rod (19);

the limiting seat (10) is of a circular truncated cone structure, the central part of the lower wall of the limiting seat (10) is of a hollow structure, the central part of the front side wall of the limiting seat is provided with a T-shaped moving groove communicated with the bottom of the limiting seat, the left side wall and the right side wall of the limiting seat (10) are respectively provided with a fixed plate, one end of each fixed plate is provided with a pair of fixing through holes with the same structure, the central part of the upper wall of the limiting seat (10) is provided with an inwards concave rotating groove, the central part of the lower wall of the rotating groove is provided with a shaft hole, one end of the shaft lever (11) movably penetrates through the shaft hole of the limiting seat (10), the central part of the upper wall of one end of the shaft lever is provided with a mounting threaded hole, the bottom shell (12) is of a circular bowl-shaped structure, two pairs of adapter columns with the same structure are equidistantly arranged on the inner lower wall, the central part of the inner lower wall is provided with a first sleeve hole, the bottom shell (12) is movably embedded in the lower wall of the limiting column, and is movably sleeved on the other end of the shaft lever (11), the ratchet wheel (13) is movably sleeved on the shaft lever (11) and is positioned at the central part of the shaft lever (11), a pair of limiting ribs (14) is respectively and fixedly arranged on the inner lower wall of the bottom shell (12) and is respectively positioned between every two switching columns in a symmetrical mode, one end of each pawl (15) is movably sleeved on one switching column, the other end of each pawl is respectively attached to the limiting rib (14), the other end of each pawl is respectively positioned on two sides of the ratchet wheel (13) and is occluded with the ratchet wheel (13), the top cover (16) is movably buckled on the bottom shell (12) and is movably sleeved on the other end of the shaft lever (11), one end of each first bolt (17) is respectively and movably penetrated in the top cover (16) in an equidistant mode and is respectively and movably screwed in the switching columns, the nut (18) is movably sleeved on the other end of the shaft lever (11) and is screwed with the shaft lever (11), and one end of the moving rod (19) movably penetrates through the T-shaped moving groove on the front wall of the limiting seat (10) and is fixedly welded on the side wall of the bottom shell (12).

2. A milling machine fixture according to claim 1, wherein: the clamping structure (2) comprises a rotating table (21), a second bolt (22) and two groups of clamping components (23) with the same structure;

the rotary table (21) is of a T-shaped circular truncated cone structure, mounting arms with the same structure are arranged at the left end and the right end of the top of the rotary table, sliding grooves communicated with the upper wall and the shaped circular truncated cone are formed in the center of the side walls of the two ends of each mounting arm, the bottom end of the rotary table (21) is movably inserted into a rotating groove in the upper wall of the limiting seat (10), a counter bore is formed in the center of the upper wall of the rotary table (21), first fit grooves communicated with the counter bore in the bottom are opened and closed on the two sides of the counter bore in the bottom, the bottom of the rotary table (21) is movably sleeved on one end of the shaft rod (11), one end of the second bolt (22) movably penetrates through the counter bore of the rotary table (21) and is movably connected into a mounting threaded hole in one end of the shaft rod (11), and the two groups of clamping assemblies (23) are detachably arranged in the sliding grooves of the mounting arms respectively and are symmetrically arranged on the two sides of the rotary table (21) respectively.

3. A milling machine fixture according to claim 2, wherein: the clamping assembly (23) comprises a sliding block (231), a clamping frame (232), a limiting bolt (233) and a clamping screw (234);

slider (231) activity is inlayed and is installed in the installation arm spout, and upper wall center part department sets up the regulation screw hole that link up, clamping frame (232) one end is fixed to be welded in slider (231) upper wall, and one end center part department sets up the regulation through-hole corresponding with the regulation screw hole that link up to other end center part department equidistance sets up two pairs of centre gripping screw holes that the structure is the same, spacing bolt (233) one end activity runs through in clamping frame (232) one end regulation through-hole, and the activity connects soon in slider (231) upper wall regulation screw hole, centre gripping screw rod (234) one end activity runs through in clamping frame (232) other end centre gripping screw hole, and connects soon mutually with clamping frame (232).

4. A milling machine fixture according to claim 3, wherein: the sliding block (231) is of a T-shaped structure, and the height of the sliding block is greater than that of the sliding groove.

5. A milling machine fixture according to claim 2, wherein: the diameter of the top of the rotating table (21) is larger than that of the limiting seat (10).

6. A milling machine fixture according to claim 1, wherein: the diameter of one end of the shaft lever (11) is larger than that of the other end, the central parts of the two ends are fixedly provided with limiting pieces, and the left side wall and the right side wall of one end of the shaft lever (11) and the central parts are provided with conjunction blocks.