CN213827938U

CN213827938U - Multi-station machining center and clamping device thereof

Info

Publication number: CN213827938U
Application number: CN202022440215.9U
Authority: CN
Inventors: 张小昌; 邵金龙; 李敏; 周超龙
Original assignee: Zhejiang Keli Vehicle Control System Co Ltd
Current assignee: Zhejiang Keli Vehicle Control System Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-07-30
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to a clamping technical field discloses a multistation machining center and clamping device thereof, including backup pad (1), be equipped with at least one clamping mechanism (2) of installing in backup pad (1) on backup pad (1), clamping mechanism (2) press from both sides tight supporting seat (4) including fixed mounting in backup pad (1) top, press from both sides and be equipped with pull rod (5) that one end was worn to establish in pressing from both sides tight supporting seat (4) in tight supporting seat (4), the cover is equipped with location axle (7) that are used for fixing a position work piece (6) on pull rod (5), the cover is equipped with opening clamp plate (8) that are used for compressing tightly work piece (6) on the other end of pull rod (5). The utility model discloses the pull rod back-and-forth movement drives opening clamp plate back-and-forth movement, makes the opening clamp plate compress tightly and loosen the epaxial work piece in location, has made things convenient for the clamping to the work piece, and the auxiliary cylinder control push pedal is fixed a position the vertical direction of work piece, has simplified the clamping structure and the mode of clamping of work piece.

Description

Multi-station machining center and clamping device thereof

Technical Field

The utility model relates to a clamping technical field especially relates to a multistation machining center and clamping device thereof.

Background

The three terminal surfaces of this auto-parts class product processing work piece of tradition car processing need repeated clamping thrice, and the size of every terminal surface is different, and the processing requirement is also different, processes a product like this and needs three equipment, and processing debugging cost is long time, and it is also many to be equipped with the operative employee. And the unstable deviation of blank thickness is great, and the difference of depth of two hole steps is big, and the blank processing must be selected to the general processing still, so not only inefficiency, the cost of labor is high, and the quality is difficult to guarantee. For example, chinese invention patent CN201920062420.0 discloses a rotary tool for automobile parts, which comprises: the support comprises support columns symmetrically arranged at two ends and cross braces horizontally erected among the support columns; the cross brace is provided with a first through hole, a second through hole and a third through hole; the hanging part mechanism comprises a hanging rod and a rotating rod; the hanging rod penetrates through the first through hole, and a plurality of limiting supports are arranged at the top end of the hanging rod; the first end of the rotating rod penetrates into the hanging rod in a mode of rotating and sliding along the inner wall of the hanging rod; the second end of the rotating rod extends vertically downwards, and a hanging hole is formed in the second end of the rotating rod; the limiting mechanism comprises a rotating shaft and a chain; the rotating shaft is erected above the third through hole respectively, one end of the chain is wound on the rotating shaft, and the other end of the chain is fixedly connected with the first end of the rotating rod. The working structure is simple, the clamping stability is poor, and large machining errors are easily caused.

Disclosure of Invention

The utility model discloses to the shortcoming that clamping poor stability, machining efficiency hang down among the prior art, provide a multistation machining center and clamping device that clamping stability is good, clamping is efficient.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve:

clamping device of multistation machining center, including the backup pad, be equipped with at least one clamping mechanism who installs in the backup pad, clamping mechanism includes the tight supporting seat of clamp of fixed mounting in the backup pad top, presss from both sides the tight supporting seat in and is equipped with the pull rod that one end was worn to establish in pressing from both sides tight supporting seat, and the pull rod is in pressing from both sides the lateral shifting in tight supporting seat, and the cover is equipped with the location axle that is used for fixing a position the work piece on the pull rod, and the cover is equipped with the opening clamp plate that is used for compressing tightly the work piece on the other end of pull rod. The pull rod moves back and forth to drive the opening pressing plate to move back and forth, so that the opening pressing plate compresses and loosens the workpiece on the positioning shaft, and the workpiece is conveniently clamped.

Preferably, the clamping support seat is internally provided with a pulling plate with the upper end vertically penetrating through the clamping support seat, the upper end of the pulling plate is provided with an inclined pulling block which is obliquely arranged from bottom to top, one end of the pulling rod is provided with an inclined groove matched with the inclined pulling block, and the inclined pulling block is positioned in the inclined groove and moves up and down in the inclined groove. The inclined pulling block on the pulling plate moves up and down in the inclined groove to control the pulling rod to move left and right, so that the connection mode of the pulling block and the pulling plate is simplified, and the driving structure of the pulling plate for the pulling block is also simplified.

Preferably, the lower end of the pulling plate is arranged in the supporting plate in a penetrating mode, a clamp oil cylinder connected with the supporting plate is arranged below the supporting plate, and the clamp oil cylinder is connected with the lower end of the pulling plate and drives the pulling plate to move up and down. The clamp oil cylinder drives the pull plate to move up and down in the supporting plate and the clamping supporting seat, so that the moving stability and the moving position precision of the pull plate are improved, and the pull rod is controlled to move back and forth more accurately.

Preferably, the other end of the pull rod is also provided with a locking nut sleeved on the pull rod, the locking nut is in threaded connection with the other end of the pull rod and transversely moves on the pull rod, and the opening pressing plate is positioned between the locking nut and the positioning shaft. The locking nut is used for adjusting the position of the opening pressing plate on the pull rod when the workpiece is clamped, and the position of the opening pressing plate is adjusted according to workpieces of different sizes, so that the processing of the technology on the workpieces of different sizes is facilitated.

Preferably, the supporting plate is further provided with an auxiliary clamping mechanism matched with the clamping mechanism, the auxiliary clamping mechanism is connected with the supporting plate and located on one side of the clamping mechanism, the auxiliary clamping mechanism comprises an auxiliary oil cylinder and a push block connected with the auxiliary oil cylinder, and the auxiliary oil cylinder pushes the push block to move transversely. The auxiliary clamping mechanism is used for positioning the vertical position of the workpiece, and the auxiliary oil cylinder pushes the push block to press the side end face of the workpiece, so that the stability of fixing the workpiece is improved.

As preferred, supplementary clamping mechanism is still including installing the auxiliary support seat in the backup pad, and the auxiliary support seat is located the auxiliary cylinder and presss from both sides between the tight support seat, and auxiliary cylinder and auxiliary support seat fixed connection, the ejector pad is worn to establish in the auxiliary support seat, and the auxiliary cylinder is connected with the ejector pad and is promoted the ejector pad lateral shifting in the auxiliary support seat. The auxiliary supporting seat is used for supporting the auxiliary oil cylinder and installing the push block, stability is provided for the auxiliary oil cylinder to drive the push block, and stability of left and right transverse movement of the push block and position accuracy of movement are guaranteed.

Preferably, an ejector block connected with the auxiliary oil cylinder is arranged in the auxiliary supporting seat, a bolt penetrating through the ejector block is arranged in the ejector block, one end of the bolt is in threaded connection with the ejector block, an inner hole matched with the bolt is formed in the ejector block, the other end of the bolt penetrates through the inner hole, a spring hole is formed in one end, close to the ejector block, of the ejector block, a compression spring sleeved on the bolt is arranged in the spring hole, and two ends of the compression spring are abutted against the ejector block and the ejector block respectively. The ejector pad passes through compression spring and bolt and ejector pad realization float and is connected, when the clamping work piece, ejector pad and ejector pad leave the clearance under compression spring's effect, the ejector pad offsets with the work piece under compression spring's effect this moment, the terminal surface of preliminary location work piece, the helper-cylinder moves right and promotes ejector pad and ejector pad, the ejector pad compresses tightly compression spring and offsets with the ejector pad, it compresses tightly the work piece to promote the ejector pad, made things convenient for the location of work piece in vertical direction, improved the stability of pressing from both sides the tightly to the work piece.

Preferably, the number of the clamping mechanisms and the number of the auxiliary clamping mechanisms are three and are uniformly distributed on the supporting plate. A plurality of workpieces can be clamped and processed simultaneously, and the processing efficiency is improved.

The utility model provides a multistation machining center, includes above multistation machining center's clamping device, still include the bottom plate and establish four-axis headstock and four-axis tailstock on the bottom plate, four-axis headstock and four-axis tailstock are located the both ends of bottom plate respectively, and the backup pad is located between four-axis headstock and the four-axis tailstock, and one side that four-axis headstock and four-axis tailstock are close to the backup pad all is equipped with the mounting panel, and the both ends of backup pad are installed respectively on the mounting panel. The four-axis headstock and the four-axis tailstock drive the supporting plate to rotate by 90 degrees or 180 degrees, so that different end faces of the workpiece are machined, the step of frequent clamping is omitted, and the machining efficiency is further improved.

The utility model discloses owing to adopted above technical scheme, have apparent technological effect: the pull rod moves back and forth to drive the opening pressing plate to move back and forth, so that the opening pressing plate can compress and loosen a workpiece on the positioning shaft, the workpiece is conveniently clamped, the auxiliary oil cylinder controls the push plate to position the workpiece in the vertical direction, the clamping structure and the clamping mode of the workpiece are simplified, the four-axis headstock and the four-axis tailstock drive the support plate and the clamping mechanism and the auxiliary clamping mechanism on the support plate to rotate by 90 degrees or 180 degrees, the processing of different end faces of the workpiece is realized, and the processing efficiency of the workpiece is improved.

Drawings

Fig. 1 is a front view structure diagram of the present invention.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

Fig. 3 is a partially enlarged schematic view of the M portion in fig. 2.

Fig. 4 is a schematic top view of the present invention.

Fig. 5 is a schematic sectional view of B-B in fig. 4.

Fig. 6 is a partially enlarged schematic view of the portion N in fig. 5.

Fig. 7 is a side view schematic of a workpiece.

Fig. 8 is a front view of a workpiece.

The names of the parts indicated by the numerical references in the drawings are as follows: 1-supporting plate, 2-clamping mechanism, 3-auxiliary clamping mechanism, 4-clamping supporting seat, 5-pull rod, 6-workpiece, 7-positioning shaft, 8-opening pressing plate, 9-step seat, 10-connecting section, 11-pull plate, 12-inclined pulling block, 13-inclined groove, 14-clamp oil cylinder, 15-locking nut, 16-auxiliary oil cylinder, 17-pushing block, 18-auxiliary supporting seat, 19-pushing block, 20-bolt, 21-inner hole, 22-spring hole, 23-compression spring, 24-bottom plate, 25-four-shaft head seat, 26-four-shaft tail seat, 27-mounting plate, 28-first end face, 29-second end face, 30-third end face and 31-hole.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

Clamping device of multistation machining center, as shown in fig. 1 to 8, including backup pad 1, be equipped with three clamping mechanism 2 of installing in backup pad 1, clamping mechanism 2 includes the tight supporting seat 4 of clamp of fixed mounting in backup pad 1 top, it wears to establish pull rod 5 in pressing from both sides tight supporting seat 4 to press from both sides tight supporting seat 4 in, pull rod 5 is in pressing from both sides tight supporting seat 4 front and back lateral shifting, the cover is equipped with location axle 7 that is used for fixing a position work piece 6 on pull rod 5, the cover is equipped with the opening clamp plate 8 that is used for compressing tightly work piece 6 on pull rod 5's the other end. The one end processing of keeping away from on location axle 7 and pressing from both sides tight supporting seat 4 has the step seat 9 with work piece 6 looks adaptation, and step seat 9 is used for fixing a position work piece 6, and the one end that location axle 7 is close to and presss from both sides tight supporting seat 4 is equipped with linkage segment 10, and linkage segment 10 wears to establish in pressing from both sides tight supporting seat 4, and the terminal surface that location axle 7 is close to and presss from both sides tight supporting seat 4 one end offsets with the terminal surface that presss from both sides tight supporting seat 4.

Be equipped with the vertical arm-tie 11 of wearing to establish in pressing from both sides tight supporting seat 4 in the upper end, the upper end of arm-tie 11 is equipped with the oblique piece 12 that sets up by lower supreme slope, the one end of pull rod 5 be equipped with oblique recess 13 of 12 looks adaptations of oblique piece, incline oblique piece 12 be located oblique recess 13 and reciprocate in oblique recess 13, oblique recess 13 and oblique piece 12 all by lower supreme orientation slope setting to keeping away from opening clamp plate 8 gradually to one side. The lower end of the pulling plate 11 is arranged in the supporting plate 1 in a penetrating mode, the pulling plate 11 moves up and down in the supporting plate 1 and the clamping supporting seat 4, a clamp oil cylinder 14 connected with the supporting plate 1 is arranged below the supporting plate 1, the clamp oil cylinder 14 is connected with the lower end of the pulling plate 11 and drives the pulling plate 11 to move up and down, and the pulling plate 11 drives the pull rod 5 to move back and forth through the inclined pulling block 12.

The other end of the pull rod 5 is also provided with a locking nut 15 sleeved on the pull rod 5, the locking nut 15 is in threaded connection with the other end of the pull rod 5 and moves transversely on the pull rod 5 front and back, the opening pressing plate 8 is positioned between the locking nut 15 and the positioning shaft 7, and the locking nut 15 moves along the front and back transverse lines to adjust the position of the opening pressing plate 8 moving back and forth.

Example 2

As shown in fig. 1 to 8, in the clamping device of the multi-station machining center, on the basis of embodiment 1, an auxiliary clamping mechanism 3 adapted to the clamping mechanism 2 is further disposed on the supporting plate 1, the auxiliary clamping mechanism 3 is connected to the supporting plate 1 and located on one side of the clamping mechanism 2, the auxiliary clamping mechanism 3 includes an auxiliary oil cylinder 16 and a push block 17 connected to the auxiliary oil cylinder 16, and the auxiliary oil cylinder 16 pushes the push block 17 to move laterally. The end surface of the push block 17 abuts against the end surface of the workpiece 6, and the push block 17 is used for positioning the workpiece 6 in the vertical direction.

The auxiliary clamping mechanism 3 further comprises an auxiliary supporting seat 18 installed on the supporting plate 1, the auxiliary supporting seat 18 is located between the auxiliary oil cylinder 16 and the clamping supporting seat 4, the auxiliary oil cylinder 16 is fixedly connected with the auxiliary supporting seat 18, the push block 17 penetrates through the auxiliary supporting seat 18, and the auxiliary oil cylinder 16 is connected with the push block 17 and pushes the push block 17 to move transversely in the auxiliary supporting seat 18.

The auxiliary supporting seat 18 is internally provided with an ejector block 19 connected with the auxiliary oil cylinder 16, the ejector block 17 is internally provided with a bolt 20 penetrating through the ejector block 17, one end of the bolt 20 is in threaded connection with the ejector block 17, the ejector block 19 is internally provided with an inner hole 21 matched with the bolt 20, the other end of the bolt 20 penetrates through the inner hole 21, the other end of the bolt 20 can transversely move left and right in the inner hole 21, one end of the ejector block 17, close to the ejector block 19, is provided with a spring hole 22, the spring hole 22 is internally provided with a compression spring 23 sleeved on the bolt 20, and two ends of the compression spring 23 are respectively abutted against the ejector block 17 and the ejector block 19. The number of the clamping mechanisms 2 and the number of the auxiliary clamping mechanisms 3 are three and are uniformly distributed on the supporting plate 1.

Example 3

The utility model provides a multistation machining center, as shown in fig. 1 to 8, includes above multistation machining center's clamping device, still include bottom plate 24 and establish four-axis headstock 25 and four-axis tailstock 26 on bottom plate 24, four-axis headstock 25 and four-axis tailstock 26 are located the both ends of bottom plate 24 respectively, backup pad 1 is located between four-axis headstock 25 and the four-axis tailstock 26, one side that four-axis headstock 25 and four-axis tailstock 26 are close to backup pad 1 all is equipped with mounting panel 27, install respectively on mounting panel 27 at the both ends of backup pad 1.

During processing, the workpiece 6 is sleeved on the step seat 9 of the positioning shaft 7, the end surface of the push block 17 is abutted against the end surface of the workpiece 6, positioning a workpiece 6 in the vertical direction, pushing a pulling plate 11 to move upwards by a fixture oil cylinder 14, moving a diagonal block 12 upwards in a diagonal groove 13, moving a pull rod 5 backwards under the action of the diagonal block 12, pressing the workpiece 6 on a positioning shaft 7 by an opening pressing plate 8 along with the backward movement of the pull rod 5, pushing an ejector 19 to move rightwards by an auxiliary oil cylinder 16, pushing a push block 17 rightwards by the ejector 19, pressing the end face of the workpiece 6 by the push block 17, fixing the workpiece 6, machining the first end surface 28 and the hole 31 on the first end surface 28 by the machining center, after the machining is finished, the four-axis headstock 25 and the four-axis tailstock 26 rotate 180 degrees synchronously to machine the second end surface 29 and the hole 31 on the second end surface 29 on the workpiece 6, and then the four-axis headstock 25 and the four-axis tailstock 26 rotate 90 degrees synchronously to machine the third end surface 30 and the hole 31 on the third end surface 30 on the workpiece 6.

Claims

1. Clamping device of multistation machining center, including backup pad (1), its characterized in that: be equipped with at least one clamping mechanism (2) of installing in backup pad (1) on backup pad (1), clamping mechanism (2) press from both sides tight supporting seat (4) including fixed mounting in backup pad (1) top, it wears to establish pull rod (5) in pressing from both sides tight supporting seat (4) to be equipped with one end in pressing from both sides tight supporting seat (4), pull rod (5) are pressing from both sides the interior lateral shifting of tight supporting seat (4), the cover is equipped with location axle (7) that are used for fixing a position work piece (6) on pull rod (5), the cover is equipped with opening clamp plate (8) that are used for compressing tightly work piece (6) on the other end of pull rod (5).

2. The clamping device of a multi-station machining center according to claim 1, wherein: be equipped with in pressing from both sides tight supporting seat (4) and vertically wear to establish arm-tie (11) in pressing from both sides tight supporting seat (4) in the upper end, the upper end of arm-tie (11) is equipped with oblique pull block (12) that set up by lower supreme slope, and the one end of pull rod (5) is equipped with oblique recess (13) with oblique pull block (12) looks adaptation, and oblique pull block (12) are located oblique recess (13) and reciprocate in oblique recess (13).

3. The clamping device of a multi-station machining center according to claim 2, wherein: the lower end of the pulling plate (11) penetrates through the supporting plate (1), a clamp oil cylinder (14) connected with the supporting plate (1) is arranged below the supporting plate (1), and the clamp oil cylinder (14) is connected with the lower end of the pulling plate (11) and drives the pulling plate (11) to move up and down.

4. The clamping device of a multi-station machining center according to claim 1, wherein: the other end of the pull rod (5) is also provided with a locking nut (15) sleeved on the pull rod (5), the locking nut (15) is in threaded connection with the other end of the pull rod (5) and transversely moves on the pull rod (5), and the opening pressing plate (8) is positioned between the locking nut (15) and the positioning shaft (7).

5. The clamping device of a multi-station machining center according to claim 1, wherein: the supporting plate (1) is further provided with an auxiliary clamping mechanism (3) matched with the clamping mechanism (2), the auxiliary clamping mechanism (3) is connected with the supporting plate (1) and located on one side of the clamping mechanism (2), the auxiliary clamping mechanism (3) comprises an auxiliary oil cylinder (16) and a push block (17) connected with the auxiliary oil cylinder (16), and the auxiliary oil cylinder (16) pushes the push block (17) to move transversely.

6. The clamping device of a multi-station machining center according to claim 5, wherein: the auxiliary clamping mechanism (3) further comprises an auxiliary supporting seat (18) installed on the supporting plate (1), the auxiliary supporting seat (18) is located between the auxiliary oil cylinder (16) and the clamping supporting seat (4), the auxiliary oil cylinder (16) is fixedly connected with the auxiliary supporting seat (18), the push block (17) is arranged in the auxiliary supporting seat (18) in a penetrating mode, and the auxiliary oil cylinder (16) is connected with the push block (17) and pushes the push block (17) to move transversely in the auxiliary supporting seat (18).

7. The clamping device of a multi-station machining center according to claim 6, wherein: be equipped with in auxiliary supporting seat (18) kicking block (19) of being connected with auxiliary cylinder (16), be equipped with bolt (20) of wearing to establish in kicking block (17), the one end and kicking block (17) threaded connection of bolt (20), be equipped with hole (21) with bolt (20) looks adaptation in kicking block (19), the other end of bolt (20) is worn to establish in hole (21), spring hole (22) have been seted up to the one end that is close to kicking block (19) in kicking block (17), be equipped with in spring hole (22) and establish compression spring (23) on bolt (20) in the cover, the both ends of compression spring (23) offset with kicking block (17) and kicking block (19) respectively.

8. The clamping device of a multi-station machining center according to claim 5, wherein: the number of the clamping mechanisms (2) and the number of the auxiliary clamping mechanisms (3) are three and are uniformly distributed on the supporting plate (1).

9. The utility model provides a multistation machining center which characterized in that: the clamping device comprises a base plate (24), a four-axis headstock (25) and a four-axis tailstock (26) which are arranged on the base plate (24), wherein the four-axis headstock (25) and the four-axis tailstock (26) are respectively arranged at two ends of the base plate (24), a support plate (1) is arranged between the four-axis headstock (25) and the four-axis tailstock (26), mounting plates (27) are respectively arranged at one sides of the four-axis headstock (25) and the four-axis tailstock (26) close to the support plate (1), and two ends of the support plate (1) are respectively arranged on the mounting plates (27).