CN217433734U

CN217433734U - Auxiliary fixture for workpiece machining

Info

Publication number: CN217433734U
Application number: CN202221004909.0U
Authority: CN
Inventors: 钱军; 陈永飞
Original assignee: Dongyang Linix Machine Electricity Co Ltd
Current assignee: Dongyang Linix Machine Electricity Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-09-16
Anticipated expiration: 2032-04-27

Abstract

The utility model relates to an anchor clamps, concretely relates to work piece processing auxiliary fixture, comprising a base plate, be equipped with on the bottom plate and place the seat, it is equipped with and is used for with work piece front and back both sides complex back positioning seat and preceding positioning seat to place the relative both sides of seat, it is equipped with a fixing base, every respectively to place another relative both sides the inboard of fixing base is equipped with presss from both sides tight piece, it is equipped with the movable block to press from both sides between tight piece and the fixing base, press from both sides the cooperation of inclined plane from top to bottom between tight piece and the movable block, the medial surface that presss from both sides tight piece is used for the left surface or the right flank cooperation with the work piece, the bottom plate below is equipped with the riser, the output shaft of riser passes the bottom plate and places the seat and be connected. The utility model can restrict the force transmission of the transverse movement by the notch, and the opposite processing requirement is lower; on the lateral shifting, move the linkage through the riser and drive the centre gripping about the tight piece of clamp and remove, reduced the contact surface, reduced the processing degree of difficulty, also promoted the precision of centre gripping.

Description

Auxiliary fixture for workpiece machining

Technical Field

The utility model relates to an anchor clamps, concretely relates to work piece processing auxiliary clamp.

Background

The end faces of two opposite sides of some workpieces are planes which are parallel to each other, when the workpieces are machined, the workpieces need to be clamped and fixed, for example, a box machining auxiliary fixture disclosed in the patent with the publication number of CN109483399A, a box blank is placed on a box placing seat, the box blank is pre-positioned through a front positioning seat and a rear positioning seat, and then a linear driving device is driven to enable the box blank to be clamped tightly; this technical scheme exists that the area of contact to the box is big, and the opposite processing degree of difficulty is high.

Disclosure of Invention

The utility model aims at providing a work piece processing auxiliary clamp can reduce the processing degree of difficulty through having reduced the contact surface, has also promoted the precision of centre gripping.

In order to achieve the above purpose, the utility model adopts the following technical scheme: work piece processing auxiliary fixtures, comprising a base plate, be equipped with on the bottom plate and place the seat, place the relative both sides of seat be equipped with be used for with work piece front and back both sides complex back positioning seat and preceding location seat, it is equipped with a fixing base respectively to place another relative both sides of seat, every the inboard of fixing base is equipped with presss from both sides tight piece, it is equipped with the movable block to press from both sides between tight piece and the fixing base, press from both sides the cooperation of inclined plane from top to bottom between tight piece and the movable block, the medial surface that presss from both sides tight piece is used for cooperating with the left surface or the right surface of work piece, the bottom plate below is equipped with the riser, the output shaft of riser passes the bottom plate and places the seat and be connected, and the riser drives and places the seat and reciprocates and can the linkage place the inboard tight piece of the fixing base of seat both sides and move in opposite directions or reverse movement.

When needing to carry out the work piece centre gripping, place the work piece on placing the seat, earlier carry out the pre-positioning centre gripping to work piece longitudinal direction through back positioning seat activity and preceding positioning seat fixed coordination, then place the seat through riser control and descend and reduce and the work piece contact, slide in the fixing base through movable block and the tight piece of clamp simultaneously and drive two and press from both sides tight piece and slide to the bottom plate side and carry out the centre gripping to work piece both sides fixedly, reduced the contact surface, reduced the processing degree of difficulty, also promoted the precision of centre gripping.

Preferably, the movable block is close to the personally submitting inclined plane structure that personally submits from bottom to top to place the seat side extension of pressing from both sides tight piece, press from both sides the inclined plane structure that personally submits from bottom to top to place the seat side extension that tight piece is close to the movable block, the movable block slides from top to bottom in the fixing base and presss from both sides tight piece horizontal slip in the fixing base, the movable block reciprocates in order to realize pressing from both sides tight piece and remove to the left and right direction of placing the seat.

Preferably, the fixing base is attached to the movable block, the contact surface of the fixing base and the movable block is a vertically arranged plane, the upper portions of the left side and the right side of the placing base are fixedly connected with the movable block through bolts, the output shaft of the lifter is fixedly connected with the placing base through bolts, and under the action of the lifter, the placing base moves upwards or downwards to drive the movable block to move upwards or downwards. The arrangement is that the output shaft of the lifter moves upwards or downwards and the bolt controls the placing seat to move upwards or downwards, and the placing seat is controlled to move upwards or downwards and drives the movable block to move upwards or downwards through the bolt connected with the movable block.

Preferably, the rear end of the front positioning seat is provided with a rear end notch used for being matched with the front end of the workpiece. The workpiece is pre-positioned through the rear end notch of the front positioning seat.

Preferably, the front positioning seat rear end notch is in a bilateral symmetry V-shaped structure, and the maximum distance between the front positioning seat V-shaped openings is greater than the width of the front end of the workpiece. The V-shaped opening at the rear end of the positioning seat is larger than the front end of the workpiece, so that the front end of the workpiece can be matched and pre-positioned conveniently.

Preferably, a pressing block is arranged at one end of the rear positioning seat in the direction of the placing seat in a sliding mode, the front end of the pressing block is of a V-shaped structure which is symmetrical left and right, and the V-shaped structure on the front edge of the section of the pressing block is used for being matched, limited and fixed with the rear end of a workpiece.

Preferably, the inner connection of the pressing block is provided with a connecting column, the connecting column penetrates out of the pressing block, the rear end of the rear positioning seat is connected with a pulling block, and the connecting column is connected with the pulling block through a bolt. The connecting column is conveniently pulled through the pulling block to drive the pressing block to slide in the rear positioning seat so as to clamp the workpiece.

Preferably, the outer wall of the connecting column is sleeved with a spring, and the spring is located between the pressing block and the rear positioning seat. According to the arrangement, the pressing block is moved towards the workpiece side through the spring, and clamping of the workpiece is strengthened.

Preferably, the upper end of the bottom plate is provided with a plurality of positioning pins, and the positioning pins are used for positioning workpieces. According to the arrangement, the workpiece is further positioned, clamped and fixed through the plurality of limiting pins.

The utility model has the advantages that the force transmission of the transverse movement can be restrained by the notch, the processing requirement on the surface is lower, and the structure is simple to manufacture; on the lateral shifting, move the linkage through the riser and drive the centre gripping about the tight piece of clamp and remove, reduced the contact surface, reduced the processing degree of difficulty, also promoted the precision of centre gripping.

Drawings

Fig. 1 is a schematic structural view of the auxiliary fixture for workpiece processing of the present invention.

Fig. 2 is a top view of the auxiliary clamp for workpiece processing of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is a cross-sectional view of B-B in fig. 2.

In the figure, a bottom plate 1, a lifter 11, a fixed seat 2, a clamping block 21, a movable block 22, a placing seat 23, a rear positioning seat 3, a pressing block 31, a spring 32, a pulling block 33, a connecting column 34, a front positioning seat 35 and a workpiece 4.

Detailed Description

The invention will be further described with reference to the drawings and the specific embodiments.

As shown in figures 1 to 4, the utility model discloses a workpiece processing auxiliary clamp, which comprises a bottom plate 1, a placing seat 23 is arranged on the bottom plate 1, a rear positioning seat 3 and a front positioning seat 35 which are used for being matched with the front side and the rear side of a workpiece 4 are arranged on the two opposite sides of the placing seat 23, a fixed seat 2 is respectively arranged on the other two opposite sides of the placing seat 23, a clamping block 21 is arranged on the inner side of each fixed seat 2, a movable block 22 is arranged between the clamping block 21 and the fixed seat 2, the clamping block 21 is matched with the movable block 22 in an upper and lower inclined plane, the movable block 22 is an inclined plane structure which is close to the clamping block 21 and extends from the bottom to the top to the side of the placing seat 23, the clamping block 21 is an inclined plane structure which is close to the movable block 22 and extends from the bottom to the top, the fixed seat 2 is attached to the movable block 22, the contact surface of the fixed seat 2 and the movable block 22 is a vertically arranged plane, the left side and the right side of the placing seat 23 are fixedly connected with the movable block 22 through bolts, the movable block 22 slides up and down in the fixed seat 2, the clamping block 21 slides left and right in the fixed seat 2, the movable block 22 moves up and down to realize that the clamping block 21 moves left and right in the placing seat 23, the inner side surface of the clamping block 21 is used for being matched with the left side surface or the right side surface of the workpiece 4, the lifter 13 is arranged below the bottom plate 1, the lifter 13 consists of an air cylinder and a piston output shaft, the piston output shaft is driven to move upwards or downwards through air entering and exiting the air cylinder, the output shaft of the lifter 13 penetrates through the bottom plate 1 to be connected with the placing seat 23, the output shaft of the lifter 13 is fixedly connected with the placing seat 23 through a bolt, under the action of the lifter 13, the placing seat 23 moves upwards or downwards to drive the movable block 22 to move upwards or downwards, and the movable block 22 moves upwards or downwards to realize that the clamping block 21 moves left and right in the placing seat 23 through inclined surface matching.

As shown in fig. 1 to 4, a rear end notch for being matched with the front end of the workpiece 4 is formed in the rear end of the front positioning seat 35, or the rear end notch of the front positioning seat 35 is of a bilaterally symmetrical V-shaped structure, the maximum distance between the V-shaped openings of the front positioning seat 35 is greater than the width of the front end of the workpiece 4, and the width between the V-shaped openings of the front positioning seat 35, which is greater than the width of the front end of the workpiece 4, facilitates the prepositioning of the front end of the workpiece 4.

As shown in fig. 1 to 4, the rear positioning seat 3 is provided with a pressing block 31 towards one end of the placing seat 23 in a sliding manner, the front end of the pressing block 31 is of a V-shaped structure which is bilaterally symmetrical, the V-shaped structure at the front end of the pressing block 31 is used for being matched with the rear end of the workpiece 4, the internal connection of the pressing block 31 is provided with a connecting column 34, the connecting column 34 penetrates out of the pressing block 31, the rear end of the rear positioning seat 3 is provided with a pulling block 33, the connecting column 34 and the pulling block 33 are connected through a bolt, a spring 32 is sleeved on the outer wall of the connecting column 34 and located between the pressing block 31 and the rear positioning seat 3, one end of the spring 32 is contacted with the rear end of the pressing block 31, the other end of the spring 32 is contacted with the internal rear end of the rear positioning seat 3, the upper end of the bottom plate 1 is provided with a plurality of positioning pins 36, and the plurality of positioning pins 36 are used for positioning the workpiece 4.

When the device is used, firstly, a worker pulls the pull block 33 towards the rear end direction, the pull block 33 moves to drive the compression block 31 to move towards the rear end direction through the connecting column 34, the compression block 31 moves towards the rear end direction to be matched with the rear positioning seat 3 for fixing to extrude and compress the spring 32, then the worker places the workpiece 4 on the placing seat 23, and the front end of the workpiece 4 is aligned with the V-shaped notch of the front positioning seat 35 for pre-positioning; the staff loosens the pull block 33, the compressing block 31 moves towards the workpiece 4 through the elastic force generated after the spring 32 is compressed, and the workpiece 4 is clamped and fixed in the longitudinal direction through the V-shaped structure at the front end of the compressing block 31 matched with the rear end notch of the front positioning seat 35.

Secondly, air is supplied to an air cylinder in the lifter 11 through an air pump, so that a piston output shaft in the lifter 11 moves downwards, the piston output shaft moves downwards to drive a placing seat 23 to move downwards, the placing seat 23 moves downwards to reduce contact with a workpiece 4, the placing seat 23 moves downwards to drive movable blocks 22 on two sides to move downwards, the movable blocks 22 move downwards to extrude a clamping block 21 through an inclined plane structure which is formed between the movable blocks 22 and the clamping block 21 and extends towards the placing seat 23 from bottom to top, the clamping block 21 slides towards the blank side of the workpiece 4 in a fixing seat 2 after being extruded, and the two clamping blocks 21 slide out to clamp the blank of the workpiece 4 in the transverse direction.

Finally, the staff processes the clamped workpiece 4, after the processing is completed, the air is discharged from the air cylinder in the lifter 11 through the air pump, the piston rod in the lifter moves upwards, the piston rod moves upwards to drive the placing seat 23 to move upwards, the placing seat 23 moves upwards to contact with the workpiece 4, the placing seat 23 moves upwards to drive the movable blocks 22 on two sides to move upwards, the movable blocks 22 move upwards to reduce the extrusion on the clamping blocks 21, the clamping force of the clamping blocks 21 on the workpiece 4 is reduced, the staff pulls the pull block 33 towards the rear end direction, the pull block 33 moves to drive the pressing block 31 to move towards the rear end direction through the connecting column 34, and then the staff takes out the processed workpiece 4 from the placing seat 23.

Claims

1. The auxiliary fixture for workpiece processing is characterized by comprising a bottom plate (1), wherein a placing seat (23) is arranged on the bottom plate (1), a rear positioning seat (3) and a front positioning seat (35) which are matched with the front side and the rear side of a workpiece (4) are arranged on two opposite sides of the placing seat (23), a fixing seat (2) is respectively arranged on the other two opposite sides of the placing seat (23), a clamping block (21) is arranged on the inner side of each fixing seat (2), a movable block (22) is arranged between each clamping block (21) and the corresponding fixing seat (2), the clamping blocks (21) and the movable blocks (22) are matched with each other in an up-down inclined plane manner, the inner side face of each clamping block (21) is matched with the left side face or the right side face of the workpiece (4), a lifter (13) is arranged below the bottom plate (1), and an output shaft of the lifter (13) penetrates through the bottom plate (1) to be connected with the placing seat (23), the lifter (13) drives the placing seat (23) to move up and down, and can be linked with the clamping blocks (21) on the inner sides of the fixed seats (2) on the two sides of the placing seat (23) to move oppositely or reversely.

2. The auxiliary jig for workpiece processing according to claim 1, characterized in that: the inclined plane structure that seat (23) side extension was placed to personally submitting from bottom to top that movable block (22) are close to pressing from both sides tight block (21), press from both sides the inclined plane structure that seat (23) side extension was placed to personally submitting from bottom to top that tight block (21) are close to movable block (22), movable block (22) reciprocate in order to realize pressing from both sides tight block (21) and remove to the left and right directions of placing seat (23).

3. The workpiece processing auxiliary jig of claim 2, wherein: fixing base (2) and movable block (22) paste mutually, and the contact surface of fixing base (2) and movable block (22) is the plane of vertical setting, place the upper portion and the movable block (22) of seat (23) left and right sides and pass through bolt fixed connection, the output shaft of riser (13) pass through the bolt and place seat (23) fixed connection under the effect of riser (13), place seat (23) and make progress or move down and drive movable block (22) and make progress or move down.

4. The auxiliary jig for workpiece processing according to claim 1, characterized in that: the rear end of the front positioning seat (35) is provided with a rear end notch matched with the front end of the workpiece (4).

5. The auxiliary jig for workpiece processing according to claim 1, wherein: the rear end notch of the front positioning seat (35) is of a V-shaped structure which is symmetrical left and right, and the maximum distance between the V-shaped openings of the front positioning seat (35) is larger than the width of the front end of the workpiece (4).

6. The auxiliary jig for workpiece processing according to claim 1, characterized in that: the rear positioning seat (3) is provided with a pressing block (31) towards one end in the direction of the placing seat (23) in a sliding mode, the front end of the pressing block (31) is of a V-shaped structure which is symmetrical left and right, and the V-shaped structure at the front end of the pressing block (31) is used for being matched with the rear end of the workpiece (4).

7. The auxiliary jig for workpiece processing according to claim 6, wherein: the inner connection of the pressing block (31) is provided with a connecting column (34), the connecting column (34) penetrates out of the pressing block (31), the rear end of the rear positioning seat (3) is connected with a pulling block (33), and the connecting column (34) is connected with the pulling block (33) through a bolt.

8. The workpiece processing auxiliary jig of claim 7, wherein: the outer wall of the connecting column (34) is sleeved with a spring (32), and the spring (32) is located between the pressing block (31) and the rear positioning seat (3).

9. The auxiliary jig for workpiece processing according to claim 1, characterized in that: the positioning device is characterized in that a plurality of positioning pins (36) are arranged at the upper end of the bottom plate (1), and the plurality of positioning pins (36) are used for positioning a workpiece (4).