CN114700787A

CN114700787A - Workpiece fixing device for vertical machining center

Info

Publication number: CN114700787A
Application number: CN202210476249.4A
Authority: CN
Inventors: 续陆卫
Original assignee: Nantong Junsheng Glass Technology Co ltd
Current assignee: Nantong Junsheng Glass Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-05
Anticipated expiration: 2042-04-29
Also published as: CN114700787B

Abstract

The invention discloses a workpiece fixing device for a vertical machining center, which comprises a workbench fixedly arranged on a support frame, wherein a machining mechanism is fixedly arranged on the workbench, a placing groove is formed in the workbench, an annular groove is formed in the inner wall of the placing groove, a plurality of arc-shaped clamping blocks are connected in the annular groove in a sliding mode, an adjusting mechanism is arranged on the workbench and matched with the arc-shaped clamping blocks, two placing holes are formed in the side wall of the workbench, two magnet blocks are connected in the two placing holes in a sliding mode, springs are arranged between the two magnet blocks and the two placing holes, sliding holes are formed in the lower side walls of the two placing holes, and sliding rods are connected in the two sliding holes in a sliding mode. Has the advantages that: the fixing and separating operations of workpieces with different sizes on the workbench can be automatically switched along with the change of the process, manual operation is not needed, the whole operation process is effectively simplified, the working efficiency can be improved, and the applicability is wide.

Description

Workpiece fixing device for vertical machining center

Technical Field

The invention relates to the technical field of vertical machining centers, in particular to a workpiece fixing device for a vertical machining center.

Background

Vertical machining center means the machining center that main shaft axis and workstation vertical setting, mainly be applicable to the processing board class, the dish class, mould and small-size casing class complicated part, can accomplish and mill, the boring, the drilling, tap and with processes such as cutting screw, before using vertical machining center to process the work piece, need to keep the stability of work piece on it mutually, consequently, need to carry out fixed operation to the work piece in advance, current vertical machining center is when fixing the work piece, often need artifical manual operation, this has just increased holistic operating procedure, make the operation more complicated, consequently, need to design a work piece fixing device for vertical machining center.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a workpiece fixing device for a vertical machining center.

In order to achieve the purpose, the invention adopts the following technical scheme:

a work piece fixing device for vertical machining center, including the workstation of fixed mounting on the support frame, fixed mounting has machining mechanism on the workstation, the standing groove has been seted up on the workstation, and the inner wall of standing groove has seted up the ring channel, sliding connection has a plurality of arc clamp splice in the ring channel, install adjustment mechanism on the workstation, and adjustment mechanism and a plurality of arc clamp splice cooperate, seted up two on the lateral wall of workstation and placed the hole, and two and placed downthehole equal sliding connection have a magnetic path two, two the spring is all installed, two between the hole is placed to magnetic path two and two the lower lateral wall of placing the hole has all seted up the slide opening, and equal sliding connection has a slide bar in two slide openings, two actuating mechanism all installs between slide bar and the adjustment mechanism.

Further, the processing mechanism comprises bracing piece, fixed plate, telescopic cylinder and installation piece, bracing piece fixed mounting is on the workstation, fixed plate fixed mounting is on the bracing piece, telescopic cylinder connects on the fixed plate, installation piece fixed mounting is at telescopic cylinder lower extreme, and the axle center of installation piece is in same straight line with the axle center of standing groove.

Furthermore, the adjusting structure comprises a lifting groove, a lifting block, a through hole, a screw rod, a driving gear, a plurality of connecting rods, a plurality of swinging grooves, a plurality of connecting blocks, a plurality of moving grooves, a plurality of sliding grooves and a plurality of connecting plates, wherein the lifting groove is formed in the lower side wall of the placing groove, the lifting block is connected in the lifting groove in a sliding manner, the through hole is formed in the lower side wall of the workbench and communicated with the lifting groove, the screw rod is rotatably connected to the through hole and in threaded connection with the lifting block, and the driving gear is fixedly installed at one end, outside the workbench, of the screw rod;

it is a plurality of the swing groove is all seted up on the lateral wall of through-hole, and is a plurality of the connecting rod is located the swing inslot that corresponds respectively, and every connecting rod all rotates with the elevator and is connected, and is a plurality of connecting block fixed mounting is respectively at the arc clamp splice lower extreme that corresponds, and is a plurality of the shifting chute is all seted up on the lateral wall of standing groove, and every shifting chute cooperatees with corresponding connecting block respectively, and is a plurality of two liang of fixed mounting are respectively at the connecting block lower extreme that corresponds to the connecting plate, and every two connecting plates rotate with the other end that corresponds the connecting rod respectively and be connected, and is a plurality of the spout is seted up respectively on the lateral wall that corresponds the shifting chute, and every spout communicates with the swing groove that corresponds respectively.

Furthermore, two fixing rods are fixedly mounted at the lower end of the telescopic cylinder, first magnetic blocks are fixedly mounted on the two fixing rods, the two first magnetic blocks correspond to the two magnetic blocks respectively in position, and the magnetic poles of the two first magnetic blocks and the magnetic poles of the two adjacent ends of the two magnetic blocks are the same.

Further, actuating mechanism comprises rack, drive gear, fixed block, rack one, rack two and installation cavity, rack fixed mounting is on the slide bar is close to the one end lateral wall of lead screw, the installation cavity is seted up on the lower lateral wall of workstation, and installation cavity and slide opening intercommunication, drive gear rotates through the bull stick and connects in the installation cavity, and the driving wheel meshes with the rack mutually, fixed block sliding connection is at the lower extreme of workstation, rack one fixed mounting is close to one of slide bar at the fixed block and rack one also meshes with drive gear mutually, rack two fixed mounting is close to one of lead screw at the fixed block and is served, and rack two meshes with drive gear mutually.

Furthermore, the minimum distance between the first rack and the rack is larger than half of the width of the sliding rod.

Further, a protruding block is fixedly mounted at the upper end of the fixing block, a groove matched with the protruding block is formed in the lower side wall of the workbench, a cross rod is fixedly mounted at the upper end of the protruding block, and a cross groove matched with the cross rod is formed in the side wall of the groove.

Compared with the prior art, the invention has the advantages that:

1: the fixing and separating operations of the workpiece on the workbench can be automatically switched along with the change of the process, manual operation is not needed, the whole operation process is effectively simplified, and the working efficiency can be improved.

2: workpieces of different sizes can be effectively fixed on the workbench, and the application range of the device is effectively widened.

3: the driving force for fixing the workpiece comes from the change of the magnetic force between the first magnetic block and the second magnetic block, so that when the plurality of arc-shaped clamping blocks finish clamping and fixing the workpiece, the fixing of the driving gear cannot cause obstruction to the downward movement of the second magnetic block, and the problem that parts in a driving mechanism are damaged is avoided.

In conclusion, the fixing and separating operations of workpieces with different sizes on the workbench can be automatically switched along with the change of the process, manual operation is not needed, the overall operation process is effectively simplified, the working efficiency can be improved, and the applicability is wide.

Drawings

Fig. 1 is a schematic structural view of a workpiece fixing device for a vertical machining center according to the present invention;

FIG. 2 is an enlarged view of the support rod and the connecting assembly thereon shown in FIG. 1;

FIG. 3 is an enlarged view of the support, the worktable, the support bar and the connecting assembly thereon of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 3 after being deflected downward by a certain angle;

FIG. 5 is a schematic view of the table of FIG. 1 after being deflected downward by a certain angle;

fig. 6 is a cross-sectional view of fig. 5.

In the figure: the device comprises a support frame 1, a workbench 2, a support rod 3, a fixing plate 4, a telescopic cylinder 5, a mounting block 6, a placing groove 7, an annular groove 8, an arc-shaped clamping block 9, a connecting block 10, a moving groove 11, a sliding groove 12, a connecting plate 13, a connecting rod 14, a swinging groove 15, a lifting groove 16, a lifting block 17, a through hole 18, a screw rod 19, a positioning block 20, a driving gear 21, a fixing rod 22, a first magnet block 23, a placing hole 24, a second magnet block 25, a sliding hole 26, a sliding rod 27, a spring 28, a rack 29, a transmission gear 30, a fixing block 31, a first rack 32, a second rack 33 and a mounting cavity 34.

Detailed Description

Referring to fig. 1-2, the workpiece fixing device for the vertical machining center comprises a workbench 2 fixedly installed on a support frame 1, and a machining mechanism is fixedly installed on the workbench 2.

The above is noteworthy:

1. the placing groove 7 is formed in the workbench 2, the placing groove 7 is used for placing a workpiece needing to be machined, and when the workpiece is placed in the placing groove 7, the workpiece part is located below the upper surface of the workbench 2, so that the workpiece can be limited on the workbench 2 to a certain extent.

2. Processing agency is by bracing piece 3, fixed plate 4, telescopic cylinder 5 and installation piece 6 are constituteed, 3 fixed mounting of bracing piece are on

workstation

2, 4 fixed mounting of fixed plate is on bracing piece 3, telescopic cylinder 5 is connected on

fixed plate

4, 6 fixed mounting of installation piece are at the 5 lower extremes of telescopic cylinder, and the axle center of installation piece 6 is in same straight line with the axle center of standing groove 7, installation piece 6 is used for fixing with the subassembly for processing, telescopic cylinder 5 during operation, can adjust the interval of processing subassembly relative workstation 2 on the installation piece 6, thereby can adjust the interval of processing subassembly relative work piece as required, in order to accomplish the processing operation to the work piece, current vertical machining center can be referred to specific processing mode, do not specifically describe here.

Referring to fig. 3-6, an annular groove 8 is formed in the inner wall of the placing groove 7, a plurality of arc-shaped clamping blocks 9 are slidably connected in the annular groove 8, and an adjusting mechanism is installed on the workbench 2 and matched with the arc-shaped clamping blocks 9.

The above is noteworthy:

1. when the arc-shaped clamping blocks 9 are close to the circle center of the placing groove 7 in the annular groove 8, workpieces with different sizes placed in the placing groove 7 can be clamped and fixed, and the axis of the workpiece can be kept consistent with the axis of the placing groove 7.

2. The adjusting structure is composed of a lifting groove 16, a lifting block 17, a through hole 18, a screw rod 19, a driving gear 21, a plurality of connecting rods 14, a plurality of swinging grooves 15, a plurality of connecting blocks 10, a plurality of moving grooves 11, a plurality of sliding grooves 12 and a plurality of connecting plates 13.

3. A plurality of connecting blocks 10 are fixed mounting respectively at the lower extreme of the arc clamp splice 9 that corresponds, and a plurality of shifting chutes 11 are all seted up on the lateral wall of standing groove 7, and every shifting chute 11 cooperatees with corresponding connecting block 10 respectively, through the cooperation of connecting block 10 with shifting chute 11, can prescribe a limit to the moving direction of arc clamp splice 9 in ring channel 8 to stability when can ensure arc clamp splice 9 and remove.

4. The lifting groove 16 is formed in the lower side wall of the placing groove 7, the lifting block 17 is connected in the lifting groove 16 in a sliding mode, the through hole 18 is formed in the lower side wall of the workbench 2, the through hole 18 is communicated with the lifting groove 16, the screw rod 19 is connected to the through hole 18 in a rotating mode, the screw rod 19 is in threaded connection with the lifting block 17, the driving gear 21 is fixedly installed at one end, located outside the workbench 2, of the screw rod 19, the screw rod 19 can be driven to rotate when the driving gear 21 is rotated, and then the connecting effect of the screw rod 19 and the lifting block 17 can be achieved, and the lifting block 17 can move up and down in the lifting groove 16.

5. The upper end of the screw rod 19 is fixedly provided with a positioning block 20, the upper surface of the positioning block 20 is positioned below the bottom wall of the placing groove 7, and the maximum moving distance of the lifting block 17 in the lifting groove 16 can be limited by the design of the positioning block 20.

6. A plurality of swing grooves 15 are formed on the side wall of the through hole 18, a plurality of connecting rods 14 are respectively positioned in the corresponding swing grooves 15, and each connecting rod 14 is rotatably connected with a lifting block 17, a plurality of connecting plates 13 are respectively and fixedly arranged at the lower ends of the corresponding connecting blocks 10 in pairs, and every two connecting plates 13 are respectively and rotatably connected with the other end of the corresponding connecting rod 14, a plurality of sliding grooves 12 are respectively arranged on the side wall of the corresponding moving groove 11, and each sliding groove 12 is communicated with the corresponding swing groove 15, when the lifting block 17 moves up and down along with the rotation of the screw rod 19, the effect on the angle of the plurality of connecting rods 14 can be defined by the connecting action of the plurality of connecting rods 14 with the plurality of connecting blocks 10 and the plurality of swing grooves 15, the arc-shaped clamping blocks 9 can be simultaneously close to or far away from the circle center of the placing groove 7, so that the fixing and separating operations of workpieces with different sizes can be realized.

Referring to fig. 1, 3, 4, 5 and 6, two placing holes 24 are formed in the side wall of the workbench 2, two magnetic blocks 25 are slidably connected in the two placing holes 24, and springs 28 are mounted between the two magnetic blocks 25 and the two placing holes 24.

The above is noteworthy:

1. through the elastic force of the spring 28, the position of the second magnetic block 25 in the placing hole 24 can be kept unchanged when the second magnetic block 25 is not subjected to external force.

2. Two fixing rods 22 are fixedly mounted at the lower end of the telescopic cylinder 5, magnetic blocks 23 are fixedly mounted on the two fixing rods 22, the two magnetic blocks 23 correspond to the two magnetic blocks 25 respectively in position, the magnetic poles of the ends, close to the two magnetic blocks 23 and the two magnetic blocks 25 are the same, when the telescopic cylinder 5 works to enable the mounting block 6 to approach a workpiece, the two fixing rods 22 can drive the two magnetic blocks 23 to move downwards at the same time, when the two magnetic blocks 23 move downwards, the distance between the two magnetic blocks 23 and the two magnetic blocks 25 is also reduced, and the magnetic poles of the ends, close to the magnetic blocks 23 and the magnetic blocks 25, of the magnetic blocks 23 are the same, so that the repulsion action between the magnetic blocks 23 and the magnetic blocks 25 is increased, and at the moment, the magnetic blocks 25 can overcome the elasticity of the springs 28 to move downwards.

3. The lower side walls of the two placing holes 24 are provided with sliding holes 26, sliding rods 27 are connected in the two sliding holes 26 in a sliding mode, driving mechanisms are installed between the two sliding rods 27 and the adjusting mechanisms, and each driving mechanism is composed of a rack 29, a transmission gear 30, a fixing block 31, a first rack 32, a second rack 33 and an installation cavity 34.

4. The rack 29 is fixedly arranged on the side wall of one end of the sliding rod 27 close to the screw rod 19, the mounting cavity 34 is arranged on the lower side wall of the workbench 2, the mounting cavity 34 is communicated with the sliding hole 26, the transmission gear 30 is rotatably connected in the mounting cavity 34 through a rotating rod, the transmission gear 30 is meshed with the rack 29, the fixed block 31 is slidably connected at the lower end of the workbench 2, the first rack 32 is fixedly arranged on one end of the fixed block 31 close to the sliding rod 27, the first rack 32 is also meshed with the transmission gear 30, the second rack 33 is fixedly arranged on one end of the fixed block 31 close to the screw rod 19, the second rack 33 is meshed with the driving gear 21, when the sliding rod 27 moves downwards, the rack 29 on the sliding rod drives the transmission gear 30 meshed with the first rack to rotate, at the moment, the first rack 32 meshed with the transmission gear 30 moves towards the direction close to the screw rod 19 under the driving action of the transmission gear 30, and further the second rack 33 drives the driving gear 21 to rotate, thereby automatically, realize being close to each other of a plurality of arc clamp splice 9, accomplish the fixed to the work piece, otherwise, when the completion moves up to reset to the flexible cylinder 5 of processing of work piece, magnetic path one 23 reduces magnetic path two 25's effort, the elasticity of spring 28 can make magnetic path two 25 reset this moment, thereby can make drive gear 21 reversal at this in-process, make a plurality of arc clamp splice 9 alternate segregation, the separation to the work piece is realized, consequently, the fixed of work piece on workstation 2 and separation operation all need not manual control, whole operation process has been simplified, can improve work efficiency.

5. The magnetic action between the first magnetic block 23 and the second magnetic block 25 is used for providing driving force for the rotation of the driving gear 21, so that when the plurality of arc-shaped clamping blocks 9 finish clamping and fixing workpieces, but the telescopic cylinder 5 still enables the mounting block 6 to move downwards, the fixing of the driving gear 21 cannot hinder the downward movement of the second magnetic block 25, and the problem that parts in the driving mechanism are damaged is avoided.

6. The minimum distance between rack one 32 and rack 29 is greater than half the width of slide 27, where the dimensioning is advantageous in that it avoids rack one 32 obstructing the movement of slide 27.

7. Fixed block 31 upper end fixed mounting has the lug, workstation 2's lower lateral wall seted up with lug matched with recess, lug upper end fixed mounting has the horizontal pole, set up on the lateral wall of recess with horizontal pole matched with cross slot, cooperation through lug and recess and horizontal pole and cross slot, can effectively ensure the connection effect between fixed block 31 and the workstation 2 and inject its moving direction, avoid fixed block 31 to take place the angular variation on workstation 2, and then can ensure rack one 32, two 33 gears respectively with drive gear 30, the meshing effect between drive gear 21.

Claims

1. A workpiece fixing device for a vertical machining center comprises a workbench (2) fixedly installed on a support frame (1), and is characterized in that a machining mechanism is fixedly installed on the workbench (2), a placing groove (7) is formed in the workbench (2), an annular groove (8) is formed in the inner wall of the placing groove (7), a plurality of arc-shaped clamping blocks (9) are connected in the annular groove (8) in a sliding mode, an adjusting mechanism is installed on the workbench (2) and matched with the arc-shaped clamping blocks (9), two placing holes (24) are formed in the side wall of the workbench (2), two magnetic blocks (25) are connected in the two placing holes (24) in a sliding mode, springs (28) are installed between the two magnetic blocks (25) and the two placing holes (24), and sliding holes (26) are formed in the lower side wall of the two placing holes (24), and slide bars (27) are connected in the two slide holes (26) in a sliding manner, and driving mechanisms are arranged between the two slide bars (27) and the adjusting mechanism.

2. The workpiece fixing device for the vertical machining center according to claim 1, wherein the machining mechanism is composed of a support rod (3), a fixing plate (4), a telescopic cylinder (5) and a mounting block (6), the support rod (3) is fixedly mounted on the workbench (2), the fixing plate (4) is fixedly mounted on the support rod (3), the telescopic cylinder (5) is connected on the fixing plate (4), the mounting block (6) is fixedly mounted at the lower end of the telescopic cylinder (5), and the axis of the mounting block (6) and the axis of the placing groove (7) are in the same straight line.

3. The workpiece fixture for a vertical machining center according to claim 1, the adjusting structure consists of a lifting groove (16), a lifting block (17), a through hole (18), a screw rod (19), a driving gear (21), a plurality of connecting rods (14), a plurality of swinging grooves (15), a plurality of connecting blocks (10), a plurality of moving grooves (11), a plurality of sliding grooves (12) and a plurality of connecting plates (13), the lifting groove (16) is arranged on the lower side wall of the placing groove (7), the lifting block (17) is connected in the lifting groove (16) in a sliding manner, the through hole (18) is arranged on the lower side wall of the workbench (2), the through hole (18) is communicated with the lifting groove (16), the screw rod (19) is rotationally connected on the through hole (18), the screw rod (19) is in threaded connection with the lifting block (17), and the driving gear (21) is fixedly installed at one end of the screw rod (19) located outside the workbench (2);

the plurality of swing grooves (15) are all arranged on the side wall of the through hole (18), the plurality of connecting rods (14) are respectively positioned in the corresponding swing grooves (15), each connecting rod (14) is rotatably connected with a lifting block (17), the connecting blocks (10) are respectively and fixedly arranged at the lower ends of the corresponding arc-shaped clamping blocks (9), the moving grooves (11) are respectively arranged on the side wall of the placing groove (7), each moving groove (11) is respectively matched with the corresponding connecting block (10), a plurality of connecting plates (13) are respectively and pairwise fixedly arranged at the lower end of the corresponding connecting block (10), and every two connecting plates (13) are respectively and rotatably connected with the other end of the corresponding connecting rod (14), a plurality of sliding grooves (12) are respectively arranged on the side wall of the corresponding moving groove (11), and each sliding groove (12) is respectively communicated with the corresponding swinging groove (15).

4. The workpiece fixing device for the vertical machining center as claimed in claim 2, wherein two fixing rods (22) are fixedly mounted at the lower end of the telescopic cylinder (5), a first magnetic block (23) is fixedly mounted on each fixing rod (22), the two first magnetic blocks (23) correspond to the two second magnetic blocks (25) in position respectively, and the same magnetic pole is arranged at the end, close to the two first magnetic blocks (23) and the two second magnetic blocks (25).

5. The workpiece fixing device for the vertical machining center according to claim 3, wherein the driving mechanism is composed of a rack (29), a transmission gear (30), a fixed block (31), a rack I (32), a rack II (33) and a mounting cavity (34), the rack (29) is fixedly installed on one side wall of the sliding rod (27) close to the screw rod (19), the mounting cavity (34) is formed in the lower side wall of the workbench (2), the mounting cavity (34) is communicated with the sliding hole (26), the transmission gear (30) is rotatably connected in the mounting cavity (34) through a rotating rod, the transmission gear (30) is meshed with the rack (29), the fixed block (31) is slidably connected to the lower end of the workbench (2), the rack I (32) is fixedly installed on one end of the fixed block (31) close to the sliding rod (27), and the rack I (32) is also meshed with the transmission gear (30), the second rack (33) is fixedly arranged at one end, close to the screw rod (19), of the fixing block (31), and the second rack (33) is meshed with the driving gear (21).

6. The workpiece fixture device for a vertical machining center according to claim 5, characterized in that the minimum distance between the first rack (32) and the rack (29) is more than equal to one half of the width of the slide rod (27).

7. The workpiece fixing device for the vertical machining center according to claim 5, wherein a bump is fixedly installed at the upper end of the fixing block (31), a groove matched with the bump is formed in the lower side wall of the workbench (2), a cross rod is fixedly installed at the upper end of the bump, and a transverse groove matched with the cross rod is formed in the side wall of the groove.