CN214922359U

CN214922359U - Machining center fixing device

Info

Publication number: CN214922359U
Application number: CN202022704000.3U
Authority: CN
Inventors: 石张强
Original assignee: Ningbo Nuoyixin Electrical Equipment Co ltd
Current assignee: Ningbo Nuoyixin Electrical Equipment Co ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-11-30
Anticipated expiration: 2030-11-20

Abstract

The utility model relates to the technical field of machining centers, in particular to a machining center fixing device, which comprises a fixed shell, a rotating plate, a telescopic cylinder, a positioning plate and a clamping claw, wherein four fixed lug plates are equidistantly arranged at the bottom end of the outer side wall of the fixed shell, a first annular chute is arranged at the top of the fixed shell, a rotating shaft is arranged in the fixed shell, the bottom end of the rotating shaft is fixedly connected with the bottom end in the fixed shell through a bearing seat, a first bevel gear is fixedly sleeved on the rotating shaft, a motor is arranged at one side of the rotating shaft, a second bevel gear is arranged at the output end of the motor, one end of the rotating shaft, which is far away from the bearing seat, penetrates through the fixed shell and is fixedly connected with the rotating plate, a second annular chute corresponding to the first annular chute is arranged at the bottom of the rotating plate, a plurality of rolling steel balls are arranged between the second annular chute and the first annular chute, the integral device is convenient for fixing workpieces with positioning holes of various sizes, good in fixing effect, high in machining precision and high in practicability.

Description

Machining center fixing device

Technical Field

The utility model relates to a machining center technical field specifically is a machining center fixing device.

Background

Machining centers have evolved from numerically controlled milling machines. The numerical control milling machine is mainly different from a numerical control milling machine in that a machining center has the capability of automatically exchanging machining tools, the machining tools on a main shaft can be changed through an automatic tool changing device in one-time clamping by installing tools with different purposes on a tool magazine, multiple machining functions are achieved, the numerical control machining center is a high-efficiency automatic machine tool which is composed of mechanical equipment and a numerical control system and is suitable for machining complex parts, and the numerical control machining center is one of numerical control machines which are highest in yield and most widely applied in the world at present.

When using numerical control machining center to process the work piece, need fix the work piece in processing equipment, generally adopt the locating hole card with the work piece in the locating pin, current fixing device size is fixed, when fixing the work piece locating hole of not unidimensional, need change fixing device, extravagant process time and need prepare multiple model anchor clamps, manufacturing cost is higher, the angle of processing of the work piece of being not convenient for adjustment after fixed simultaneously, the practicality is relatively poor, consequently needs a machining center fixing device to make the improvement to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a machining center fixing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a machining center fixing device comprises a fixing shell, a rotating plate, a telescopic cylinder, a positioning plate and clamping jaws, wherein four fixing lug plates are arranged at the bottom end of the outer side wall of the fixing shell at equal intervals, a first annular chute is formed in the top of the fixing shell, a rotating shaft is arranged in the fixing shell, the bottom end of the rotating shaft is fixedly connected with the bottom end in the fixing shell through a bearing seat, a first bevel gear is fixedly sleeved on the rotating shaft, a motor is arranged on one side of the rotating shaft, a second bevel gear is arranged at the output end of the motor, the rotating plate is fixedly connected with the rotating shaft by penetrating through the fixing shell at one end of the rotating shaft far away from the bearing seat, a second annular chute corresponding to the first annular chute is arranged at the bottom of the rotating plate, a plurality of rolling steel balls are arranged between the second annular chute and the first annular chute, the telescopic cylinder is arranged at the center of the top of the rotating plate, the telescopic cylinder is characterized in that a moving block is installed at the push rod end of the telescopic cylinder, sliders are arranged on the periphery of the top end of the outer side wall of the moving block, a fixing sleeve is arranged on the outer side of the telescopic cylinder, a positioning plate is installed at the top of the fixing sleeve, four clamping jaws are arranged inside the positioning plate, sliding grooves are formed in the inner side walls of the clamping jaws, grooves are formed in the top ends of the outer sides of the clamping jaws, clamping plates are arranged in the grooves, and springs are installed between the top ends of the inner sides of the clamping plates and the clamping jaws.

Preferably, the second bevel gear is in meshed connection with the first bevel gear.

Preferably, the bottom of the fixed sleeve is fixedly connected with the rotating plate through a bolt, and the top of the fixed sleeve is fixedly connected with the positioning plate through a bolt.

Preferably, the moving block is of a frustum pyramid structure, an inclined plane corresponding to the moving block is arranged on the inner side of the clamping jaw, and the moving block is connected with the clamping jaw in a sliding mode through a sliding block and a sliding groove.

Preferably, the bottom end of the outer side of the clamping jaw is provided with a single-lug connecting piece, the inner side of the positioning plate is provided with a double-lug connecting piece corresponding to the single-lug connecting piece in position, and the double-lug connecting piece is rotatably connected with the single-lug connecting piece through a pin shaft.

Preferably, the bottom end of the clamping plate is rotatably connected with the clamping jaw through a rotating shaft, and two ends of the spring are fixedly connected with the clamping plate and the clamping jaw respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, movable block and centre gripping jack catch through setting up, the movable block is prismoid structure, centre gripping jack catch inboard is equipped with the inclined plane corresponding with the movable block, the movable block passes through slider and spout sliding connection with the centre gripping jack catch, and the monaural connecting piece on the centre gripping jack catch is connected through the round pin axle rotation with the binaural connecting piece on the locating plate, extend through control telescopic cylinder and make the movable block rebound, thereby drive four centre gripping jack catches and outwards expand simultaneously, fix in the locating hole of work piece, with the work piece rigidity, the scope of centre gripping jack catch expansion is great, be convenient for fix the work piece of multiple size locating hole, reduce the time of changing mounting fixture and the cost of making multiple model anchor clamps, the practicality is higher, the movable block adopts sliding connection with the centre gripping jack catch simultaneously, reduce the friction and wear, and tear, and service life is prolonged.

2. The utility model discloses in, through the grip block that sets up, in the recess of centre gripping jack catch was arranged in to the grip block, the bottom passed through rotation axis with the centre gripping jack catch and is connected, fixedly connected with spring between inboard top and the centre gripping jack catch, under the elastic action of spring, to the thrust of grip block formation outside, when fixed work piece for the grip block offsets with the inner wall of locating hole all the time, improves fixed effect, and is not hard up when avoiding processing the work piece, improves the machining precision.

3. The utility model discloses in, through pivot and the motor that sets up, the pivot bottom is connected through the bearing frame with the inside bottom of fixed casing, pivot top and rotor plate fixed connection, and the second bevel gear meshing that the fixed cover was established in the pivot is connected with the motor output end installation, can drive the pivot through the motor function and rotate, thereby make the rotor plate rotate, the angle of adjustment fixed work piece, conveniently process, and be provided with a plurality of rolling steel balls between the first annular spout at fixed casing top and the second annular spout of rotor plate bottom, provide sufficient holding power for the rotor plate, and reduce frictional force, the stationarity when improving angle of adjustment, the practicality is higher.

Drawings

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

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

fig. 3 is an enlarged schematic view of the structure of the area a of the present invention.

In the figure: 1-fixed shell, 2-rotating shaft, 3-bearing seat, 4-first bevel gear, 5-second bevel gear, 6-motor, 7-rotating plate, 8-first annular chute, 9-rolling steel ball, 10-second annular chute, 11-telescopic cylinder, 12-moving block, 13-fixed sleeve, 14-positioning plate, 15-clamping claw, 16-groove, 17-spring, 18-clamping plate, 19-fixed lug plate, 20-sliding block and 21-chute.

Detailed Description

The technical solution 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 some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a machining center fixing device comprises a fixed shell 1, a rotating plate 17, a telescopic cylinder 11, a positioning plate 14 and a clamping jaw 15, wherein four fixing lug plates 19 are arranged at the bottom end of the outer side wall of the fixed shell 1 at equal intervals, a first annular chute 8 is arranged at the top of the fixed shell 1, a rotating shaft 2 is arranged inside the fixed shell 1, the bottom end of the rotating shaft 2 is fixedly connected with the bottom end inside the fixed shell 1 through a bearing seat 3, a first bevel gear 4 is fixedly sleeved on the rotating shaft 2, a motor 6 is arranged on one side of the rotating shaft 2, a second bevel gear 5 is arranged at the output end of the motor 6, the second bevel gear 5 is meshed and connected with the first bevel gear 4, one end of the rotating shaft 2, which is far away from the bearing seat 3, penetrates through the fixed shell 1 and is fixedly connected with a rotating plate 7, a second annular chute 10 corresponding to the position of the first annular chute 8 is arranged at the bottom of the rotating plate 7, a plurality of rolling steel balls 9 are arranged between the second annular chute 10 and the first annular chute 8, a telescopic cylinder 11 is arranged at the center of the top of the rotating plate 7, a moving block 12 is arranged at the push rod end of the telescopic cylinder 11, the moving block 12 is of a frustum pyramid structure, sliding blocks 20 are arranged around the top end of the outer side wall of the moving block 12, a fixing sleeve 13 is arranged on the outer side of the telescopic cylinder 11, a positioning plate 14 is arranged at the top of the fixing sleeve 13, the bottom of the fixing sleeve 13 is fixedly connected with the rotating plate 7 through bolts, the top of the fixing sleeve 13 is fixedly connected with the positioning plate 14 through bolts, four clamping claws 15 are arranged inside the positioning plate 14, sliding grooves 21 are arranged on the inner side walls of the clamping claws 15, inclined planes corresponding to the moving block 12 are arranged on the inner sides of the clamping claws 15, the moving block 12 is slidably connected with the clamping claws 15 through the sliding blocks 20 and the sliding grooves 21, a single-lug connecting piece is arranged at the bottom end of the outer side of the clamping claws 15, and a double-lug connecting piece corresponding to the position of the single-lug connecting piece is arranged on the inner side of the positioning plate 14, and the double-lug connecting piece is rotationally connected with the single-lug connecting piece through a pin shaft, the top end of the outer side of the clamping jaw 15 is provided with a groove 16, a clamping plate 18 is arranged in the groove 16, the bottom end of the clamping plate 18 is rotationally connected with the clamping jaw 15 through a rotating shaft, a spring 17 is arranged between the top end of the inner side of the clamping plate 18 and the clamping jaw 15, and two ends of the spring 17 are respectively fixedly connected with the clamping plate 18 and the clamping jaw 15.

The utility model discloses work flow: when the device is used, a bolt penetrates through a mounting hole on the fixed lug plate 19 to mount the device in machining center equipment, a workpiece is placed on the positioning plate 14, a positioning hole of the workpiece is aligned with the clamping jaw 15, the movable block 12 is of a frustum pyramid structure, an inclined plane corresponding to the movable block 12 is arranged on the inner side of the clamping jaw 15, the movable block 12 is in sliding connection with the clamping jaw 15 through the sliding block 20 and the sliding groove 21, a single-lug connecting piece on the clamping jaw 15 is rotationally connected with a double-lug connecting piece on the positioning plate 14 through a pin shaft, the movable block 12 is moved upwards by controlling the extension of the telescopic cylinder 11, so that the four clamping jaws 15 are driven to simultaneously expand outwards and fixed in the positioning hole of the workpiece, the position of the workpiece is fixed, the contact friction and abrasion are reduced by adopting sliding connection between the movable block 12 and the clamping jaw 15, the service life is prolonged, and the clamping plate 18 is placed in the groove 16 of the clamping jaw 15, the bottom end is rotatably connected with a clamping jaw 15 through a rotating shaft, a spring 17 is fixedly connected between the top end of the inner side and the clamping jaw 15, under the elastic action of the spring 17, outward thrust is formed on the clamping plate 18, when a workpiece is fixed, the clamping plate 18 always abuts against the inner wall of a positioning hole, the fixing effect is improved, looseness during processing of the workpiece is avoided, the processing precision is improved, the bottom end of a rotating shaft 2 is connected with the bottom end inside a fixed shell 1 through a bearing seat 3, the top end of the rotating shaft 2 is fixedly connected with a rotating plate 7, a first bevel gear 4 fixedly sleeved on the rotating shaft 2 is meshed with a second bevel gear 5 arranged at the output end of a motor 6, the rotating shaft 2 can be driven to rotate through the operation of the motor 6, so that the rotating plate 7 rotates, the angle of the fixed workpiece is adjusted, processing is convenient, and a plurality of steel balls 9 are arranged between a first annular chute 8 at the top of the fixed shell 1 and a second annular chute 10 at the bottom of the rotating plate 7, the supporting force is enough provided for the rotating plate 7, the friction force is reduced, the stability in angle adjustment is improved, the whole device is convenient for fixing workpieces with positioning holes of various sizes, the fixing effect is good, the processing precision is improved, and the practicability is high.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a machining center fixing device, includes fixed casing (1), rotor plate (7), telescopic cylinder (11), locating plate (14) and centre gripping jack catch (15), its characterized in that: the bottom end of the outer side wall of the fixed shell (1) is equidistantly provided with four fixed lug plates (19), the top of the fixed shell (1) is provided with a first annular chute (8), the inside of the fixed shell (1) is provided with a rotating shaft (2), the bottom end of the rotating shaft (2) is fixedly connected with the bottom end inside the fixed shell (1) through a bearing seat (3), the rotating shaft (2) is fixedly sleeved with a first bevel gear (4), one side of the rotating shaft (2) is provided with a motor (6), the output end of the motor (6) is provided with a second bevel gear (5), one end of the rotating shaft (2) far away from the bearing seat (3) penetrates through the fixed shell (1) and is fixedly connected with a rotating plate (7), the bottom of the rotating plate (7) is provided with a second annular chute (10) corresponding to the position of the first annular chute (8), and a plurality of rolling steel balls (9) are arranged between the second annular chute (10) and the first annular chute (8), the improved clamping device is characterized in that a telescopic cylinder (11) is installed at the center of the top of the rotating plate (7), a moving block (12) is installed at the push rod end of the telescopic cylinder (11), sliding blocks (20) are arranged on the periphery of the top end of the outer side wall of the moving block (12), a fixing sleeve (13) is arranged on the outer side of the telescopic cylinder (11), a positioning plate (14) is installed at the top of the fixing sleeve (13), four clamping jaws (15) are arranged inside the positioning plate (14), sliding grooves (21) are formed in the inner side wall of the clamping jaws (15), grooves (16) are formed in the top end of the outer side of the clamping jaws (15), a clamping plate (18) is arranged in the grooves (16), and springs (17) are installed between the inner side top end of the clamping plate (18) and the clamping jaws (15).

2. A machining center fixture according to claim 1, wherein: the second bevel gear (5) is in meshed connection with the first bevel gear (4).

3. A machining center fixture according to claim 1, wherein: the bottom of the fixed sleeve (13) is fixedly connected with the rotating plate (7) through a bolt, and the top of the fixed sleeve (13) is fixedly connected with the positioning plate (14) through a bolt.

4. A machining center fixture according to claim 1, wherein: the movable block (12) is of a frustum pyramid structure, an inclined surface corresponding to the movable block (12) is arranged on the inner side of the clamping jaw (15), and the movable block (12) is connected with the clamping jaw (15) in a sliding mode through a sliding block (20) and a sliding groove (21).

5. A machining center fixture according to claim 1, wherein: the clamping jaw is characterized in that a single-lug connecting piece is arranged at the bottom end of the outer side of the clamping jaw (15), a double-lug connecting piece corresponding to the single-lug connecting piece in position is arranged on the inner side of the positioning plate (14), and the double-lug connecting piece is rotatably connected with the single-lug connecting piece through a pin shaft.

6. A machining center fixture according to claim 1, wherein: the bottom end of the clamping plate (18) is rotatably connected with the clamping jaw (15) through a rotating shaft, and two ends of the spring (17) are fixedly connected with the clamping plate (18) and the clamping jaw (15) respectively.