CN212043637U

CN212043637U - Workpiece clamping device

Info

Publication number: CN212043637U
Application number: CN202020484671.0U
Authority: CN
Inventors: 尹向阳; 谭博; 赫燕平; 吴文索
Original assignee: Shaanxi Xinxing Thermal Spraying Technology Co ltd
Current assignee: Shaanxi Xinxing Thermal Spraying Technology Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-12-01
Anticipated expiration: 2030-04-03

Abstract

The utility model relates to a work piece clamping device, the on-line screen storage device comprises a base, a fixed base, remove the seat, chuck and setting element, the work piece centre gripping with the gear is between chuck and setting element, the soft one side of keeping away from the fixing base of grabbing of the jack catch of each chuck all is equipped with the extension jack catch, the extension jack catch is the L type, and longer one end is kept away from its connecting portion and has been seted up first installation screw, the jack catch is soft to be grabbed and is corresponded with first installation screw and has been seted up the second screw, the soft passing screw that grabs of extension jack catch and jack catch is fixed, extension jack catch minor face tip is equipped with the fixed plate rather than long limit parallel salient, it is equipped with locking Assembly to the soft orientation of grabbing of jack. The utility model discloses a work piece clamping device presss from both sides the dress through extension jack catch and auxiliary stay subassembly convenience of customers to the work piece that both ends have the gear, once can press from both sides the dress and put in place, need not press from both sides the dress adjustment repeatedly, guarantees to press from both sides the axiality of dress work piece, and convenience of customers uses.

Description

Workpiece clamping device

Technical Field

The utility model belongs to the technical field of the technique of axle type parts machining and specifically relates to a work piece clamping device is related to.

Background

The clamp types can be divided into: universal fixture, special fixture, adjustable fixture and combined fixture, and lathe fixture, milling machine fixture, drilling jig, follow fixture, etc. all belong to special fixture. In the process of machining parts, operations such as cutting, drilling, milling and the like are often performed on some shaft parts, and in the first step, the shaft parts need to be clamped and positioned by using a clamp.

The traditional Chinese patent with the publication number of CN206597926U discloses a lathe fixture and a lathe using the lathe fixture, which comprises a rotary disc, wherein a placing groove for placing a workpiece is arranged in the rotary disc along the axis direction, a plurality of sliding grooves are arranged on the rotary disc along the radial direction, clamping jaws are arranged in the sliding grooves, the clamping jaws are connected in the sliding grooves in a sliding manner along the radial direction of the rotary disc, a plurality of rotating grooves connected with the sliding grooves are arranged on the rotary disc, the rotating grooves extend along the radial direction of the rotary disc, worms for driving the clamping jaws to slide are arranged on the rotating grooves, sliding blocks are fixedly connected on the clamping jaws, gears meshed on the worms are fixedly connected on the sliding blocks, the worms rotate to drive gear teeth to slide and drive the clamping jaws to slide, the worms can drive the sliding blocks to slide and then drive the clamping jaws to slide through the arrangement of the worms, after the clamping jaws tightly abut against the workpiece, the circle center of the workpiece is aligned with the circle center of the rotating disc, and the precision of the clamp is improved.

The above prior art solutions have the following drawbacks: the lathe of the scheme is only suitable for clamping shaft workpieces with small diameters at two ends, is large in clamping difficulty for workpieces with large diameters at two ends or with gears, needs to be clamped and adjusted for many times, and cannot guarantee coaxiality of the workpieces.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art existence, the utility model aims at providing a work piece clamping device presss from both sides the dress through extension jack catch and auxiliary stay subassembly convenience of customers to the work piece that both ends have the gear, once can press from both sides the dress and target in place, need not press from both sides the dress adjustment repeatedly, guarantees to press from both sides the axiality of dress work piece, and convenience of customers uses.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a workpiece clamping device, includes base, fixing base, removal seat, chuck and setting element, and the work piece centre gripping that has the gear is in the chuck with between the setting element, each the jack catch of chuck is soft to be grabbed and is kept away from all demountable installation in one side of fixing base has the extension jack catch, the extension jack catch is the L type, and longer one end keeps away from its connecting portion and has seted up first installation screw, the jack catch soft grab go up with first installation screw corresponds and has seted up the second screw, the extension jack catch with the jack catch soft is grabbed through the fix with screw, extension jack catch minor face tip is equipped with the fixed plate rather than long limit parallel protrusion, be equipped with locking Assembly towards the soft direction of grabbing of jack catch on the fixed plate, be located on the base the fixing base with it has two auxiliary support assemblies to.

By adopting the technical scheme, when a user clamps a workpiece, firstly, the central shaft of the workpiece is erected at the top of the auxiliary supporting component; secondly, the auxiliary supporting assembly is pushed to drive the workpiece to move towards the chuck, and after the gear is contacted with the lengthened clamping jaw, the soft gripper of the clamping jaw is controlled to drive the lengthened clamping jaw on the soft gripper to move towards a groove in the middle of the chuck so as to tightly abut against the gear; controlling the movable seat to move towards the direction of the fixed seat again, and tightly abutting the other end of the workpiece through the positioning piece; and finally, the gear is reinforced secondarily through the locking assembly to complete the clamping of the workpiece, so that a user can conveniently clamp the workpiece with the gears at two ends, the workpiece can be clamped in place once, repeated clamping and adjustment are not needed, the coaxiality of the clamped workpiece is guaranteed, and the use by the user is facilitated.

The present invention may be further configured in a preferred embodiment as: the locking assembly comprises an adjusting screw hole formed in the fixing plate, an adjusting bolt penetrates through the adjusting screw hole, and a propping head is coaxially arranged at the end part, close to the claw soft grab, of the adjusting bolt.

Through adopting above-mentioned technical scheme, after the work piece by tightly supporting between extension jack catch and the tight head of supporting, rotate adjusting bolt and drive the tight head of supporting of its tip and move to the gear direction and press from both sides it tight, avoid the gear to slide and influence its axiality.

The present invention may be further configured in a preferred embodiment as: the side wall of the lengthened clamping jaw between the long edge of the lengthened clamping jaw and the fixing plate is provided with a plurality of anti-skidding threads.

Through adopting above-mentioned technical scheme, the friction that anti-skidding line further increased gear and extension jack catch support tight portion takes place to slide when avoiding the work piece to rotate, guarantees the axiality of work piece.

The present invention may be further configured in a preferred embodiment as: the long limit lateral wall of base is equipped with two spouts relatively, the locking bolt is worn to be equipped with by the base lateral wall, the locking bolt tip tightly supports the base lateral wall, supplementary supporting component includes the slide of sliding connection on the spout, the slide top is equipped with flexible supporting component, flexible supporting component top is equipped with the bracket that the upper surface is smooth cambered surface.

By adopting the technical scheme, a user slides the sliding seats on the sliding grooves according to the size of the workpiece, the distance between the sliding seats and the fixed seat and the distance between the sliding seats and the two sliding seats are adjusted, the locking bolt is rotated to enable the end part of the locking bolt to be tightly abutted against the base to fix the sliding seats, and the central shaft of the workpiece is supported on the supporting seat; then the height of the workpiece is adjusted through the telescopic supporting component, so that the central shaft of the workpiece and the center of the groove of the chuck are at the same height; after the user has well held the work piece, adjust the center pin separation of bracket and work piece at flexible supporting component top, the user of being convenient for is follow-up processes the work piece.

The present invention may be further configured in a preferred embodiment as: the telescopic supporting component comprises two vertical rotary connecting screws arranged at the top of the sliding seat, a sliding block is arranged at the top of each screw in a sliding mode, a sleeve is arranged at the top of each sliding block, the sleeve is sleeved outside each screw, the top of each sleeve is connected with a mounting plate, the mounting plates are parallel to the fixing seats, the top of each sliding seat is located at two positions, a double-shaft motor is arranged between the screws, an output shaft of each double-shaft motor is coaxially connected with a driving bevel gear, and the bottom end of each screw is coaxially connected with a driven bevel gear meshed with the driving bevel.

By adopting the technical scheme, the double-shaft motor is started to enable the output shaft of the double-shaft motor to rotate to drive the driving bevel gear to rotate, the driving bevel gear drives the screw rod to rotate through the driven bevel gear meshed with the driving bevel gear, the screw rod rotates to drive the sliding block and the sleeve to move upwards or downwards to drive the mounting plate and the bracket to ascend or descend, and the double-shaft motor is simple in structure and convenient to use.

The present invention may be further configured in a preferred embodiment as: the double-shaft motor outside the initiative bevel gear with the driven bevel gear meshing portion outside covers is equipped with the protection casing, the protection casing lateral wall is provided with the louvre.

Through adopting above-mentioned technical scheme, the protection casing is protected biax motor, drive bevel gear and driven bevel gear's meshing portion, prevents that dust or disintegrating slag from dropping and influence its normal work above that, dispels the heat to biax motor through the thermovent.

The present invention may be further configured in a preferred embodiment as: a corrugated hose is arranged between the protective cover and the sliding block and sleeved outside the screw rod.

Through adopting above-mentioned technical scheme, protect the part that the screw rod exposes outside through corrugated hose, prevent that dust or disintegrating slag card from influencing its normal work on the screw rod.

The present invention may be further configured in a preferred embodiment as: the bracket includes to be fixed through set screw the connecting plate at mounting panel top, the connecting plate top is fixed with the upper surface and is smooth curved puts the thing board, the connecting plate with it fixedly is equipped with the fixed column to put between the thing board.

Through adopting above-mentioned technical scheme, fix the connecting plate at the mounting panel top through set screw, convenience of customers dismantles, changes.

To sum up, the utility model discloses a following at least one useful technological effect:

1. when a user clamps a workpiece, firstly, a central shaft of the workpiece is erected at the top of the auxiliary supporting component; secondly, the auxiliary supporting assembly is pushed to drive the workpiece to move towards the chuck, and after the gear is contacted with the lengthened clamping jaw, the soft gripper of the clamping jaw is controlled to drive the lengthened clamping jaw on the soft gripper to move towards a groove in the middle of the chuck so as to tightly abut against the gear; controlling the movable seat to move towards the direction of the fixed seat again, and tightly abutting the other end of the workpiece through the positioning piece; and finally, the gear is reinforced secondarily through the locking assembly to complete the clamping of the workpiece, so that a user can conveniently clamp the workpiece with the gears at two ends, the workpiece can be clamped in place once, repeated clamping and adjustment are not needed, the coaxiality of the clamped workpiece is guaranteed, and the use by the user is facilitated.

Drawings

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

FIG. 2 is an exploded schematic view of the chuck segment;

fig. 3 is a cross-sectional view of the auxiliary support assembly.

In the figure, 1, a base; 11. a chute; 12. locking the bolt; 2. a fixed seat; 3. a movable seat; 4. a chuck; 41. soft grabbing by a claw; 42. lengthening the clamping jaws; 43. a first mounting screw hole; 44. a second screw hole; 45. a screw; 46. a fixing plate; 47. anti-skid lines; 5. a locking assembly; 51. adjusting the screw hole; 52. adjusting the bolt; 53. abutting the head; 6. an auxiliary support assembly; 61. a slide base; 62. a telescopic support assembly; 621. a screw; 622. a slider; 623. a sleeve; 624. mounting a plate; 625. a double-shaft motor; 626. a drive bevel gear; 627. a driven bevel gear; 628. a protective cover; 629. heat dissipation holes; 63. a bracket; 631. a set screw; 632. a connecting plate; 633. a storage plate; 634. fixing a column; 7. a corrugated hose; 8. a workpiece; 81. a gear; 9. a positioning member.

Detailed Description

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

As shown in figures 1 and 2, the workpiece clamping device disclosed by the present invention comprises a base 1, a fixed seat 2, a movable seat 3, a chuck 4 and a positioning member 9, wherein a workpiece 8 with a gear 81 is clamped between the chuck 4 and the positioning member 9, one side of a soft claw 41 of each chuck 4, which is far away from the fixed seat 2, is detachably provided with an elongated claw 42, the elongated claw 42 is L-shaped, the longer end of the elongated claw 42, which is far away from a connecting portion thereof, is provided with a first mounting screw hole 43, the soft claw 41 is provided with a second screw hole 44 corresponding to the first mounting screw hole 43, the elongated claw 42 and the soft claw 41 are fixed by a screw 45, the end portion of the short side of the elongated claw 42 is provided with a fixed plate 46 in parallel to the long side thereof, the fixed plate 46 is provided with a locking assembly 5 towards the soft claw 41, the locking assembly 5 comprises an adjusting screw hole 51 arranged on the fixed plate 46, the adjusting bolt 52 is provided with a abutting head 53 coaxially at the end part close to the soft jaw 41, the side wall of the lengthened jaw 42 between the long edge and the fixing plate 46 is provided with a plurality of anti-slip threads 47 for preventing the gear 81 and the lengthened jaw 42 from abutting the sliding part, and two auxiliary supporting components 6 are slidably connected between the fixed seat 2 and the movable seat 3 on the base 1. When clamping the workpiece 8, a user firstly erects the central shaft of the workpiece 8 on the top of the auxiliary supporting component 6; secondly, the auxiliary supporting component 6 is pushed to drive the workpiece 8 to move towards the direction of the chuck 4, and after the gear 81 is contacted with the lengthened clamping jaw 42, the claw soft claw 41 is controlled to drive the lengthened clamping jaw 42 thereon to move towards a groove in the middle of the chuck 4 so as to tightly abut against the gear 81; the movable seat 3 is controlled to move towards the fixed seat 2 again, and the other end of the workpiece 8 is abutted by the positioning piece 9; finally, the adjusting bolt 52 is rotated to drive the abutting head 53 at the end part to move towards the gear 81 to clamp the gear, so that the gear 81 is reinforced for the second time, and the gear 81 is prevented from sliding to influence the coaxiality of the gear 81; the workpiece clamping device is convenient for a user to clamp the workpiece 8 with the gears 81 at two ends, the workpiece can be clamped in place at one time, repeated clamping and adjustment are not needed, the coaxiality of the clamped workpiece is guaranteed, and the workpiece clamping device is convenient for the user to use.

As shown in fig. 1 and 3, two sliding grooves 11 are oppositely arranged on the long side wall of the base 1, a locking bolt 12 is arranged on the side wall of the base 1 in a penetrating manner, the end part of the locking bolt 12 tightly supports against the side wall of the base 1, the auxiliary supporting component 6 comprises a sliding seat 61 connected to the sliding grooves 11 in a sliding manner, a telescopic supporting component 62 is arranged at the top of the sliding seat 61, and a bracket 63 with a smooth arc surface is arranged at the top of the telescopic supporting component 62. A user slides the sliding seat 61 on the sliding chute 11 according to the size of the workpiece, adjusts the distance between the sliding seat 61 and the fixed seat 2 and the distance between the two sliding seats 61, rotates the locking bolt 12 to enable the end part of the locking bolt to be tightly abutted against the base 1 to fix the sliding seat 61, and puts the central shaft of the workpiece 8 on the bracket 63; then the height of the workpiece 8 is adjusted through the telescopic supporting component 62 to enable the central shaft of the workpiece to be at the same height as the center of the groove of the chuck 4; after the user has clamped the workpiece 8, the bracket 63 at the top end of the telescopic supporting component 62 is adjusted to be separated from the central shaft of the workpiece 8, so that the user can conveniently process the workpiece 8 subsequently. Bracket 63 includes the connecting plate 632 that fixes at the top of mounting panel 624 through set screw 631, and the top of connecting plate 632 is fixed with the thing board 633 that the upper surface is smooth curved, and the fixed column 634 is fixed to be equipped with between connecting plate 632 and the thing board 633, fixes connecting plate 632 at the top of mounting panel 624 through set screw 631, and convenience of customers dismantles, changes.

As shown in fig. 3, the telescopic supporting assembly 62 includes two screw rods 621 vertically and rotatably connected to the top of the sliding base 61, a sliding block 622 is slidably disposed at the top of each screw rod 621, a sleeve 623 is disposed at the top of each sliding block 622, the sleeve 623 is sleeved outside the screw rods 621, the top of each sleeve 623 is commonly connected with a mounting plate 624, the mounting plate 624 is parallel to the fixed base 2, a double-shaft motor 625 is disposed between the two screw rods 621 at the top of the sliding base 61, an output shaft of the double-shaft motor 625 is coaxially connected with a driving bevel gear 626, and a driven bevel gear 627 meshed with the driving. The double-shaft motor 625 is started to enable the output shaft of the double-shaft motor to rotate to drive the driving bevel gear 626 to rotate, the driving bevel gear 626 drives the screw 621 to rotate through the driven bevel gear 627 meshed with the driving bevel gear 626, the screw 621 rotates to drive the sliding block 622 and the sleeve 623 to move upwards or downwards to drive the mounting plate 624 and the bracket 63 to ascend or descend, and the double-shaft motor is simple in structure and convenient to use. The outer side of the double-shaft motor 625, the outer side of the meshing part of the drive bevel gear 626 and the driven bevel gear 627 are covered with a protective cover 628, the side wall of the protective cover 628 is provided with heat radiation holes 629, the protective cover 628 protects the meshing part of the double-shaft motor 625, the drive bevel gear 626 and the driven bevel gear 627, dust or slag is prevented from falling on the protective cover to influence the normal operation of the protective cover, and the double-shaft motor 625 is radiated through the heat radiation holes 629. A corrugated hose 7 is arranged between the protective cover 628 and the sliding block 622, the corrugated hose 7 is sleeved outside the screw 621, and the exposed part of the screw 621 is protected by the corrugated hose 7, so that dust or slag is prevented from being clamped on the screw 621 to influence the normal operation of the screw 621.

The implementation principle of the embodiment is as follows: when the workpiece clamping device is used, the central shaft of the workpiece 8 is firstly erected at the top of the auxiliary supporting component 6; secondly, the auxiliary supporting component 6 is pushed to drive the workpiece 8 to move towards the direction of the chuck 4, and after the gear 81 is contacted with the lengthened clamping jaw 42, the claw soft claw 41 is controlled to drive the lengthened clamping jaw 42 thereon to move towards a groove in the middle of the chuck 4 so as to tightly abut against the gear 81; the movable seat 3 is controlled to move towards the fixed seat 2 again, and the other end of the workpiece 8 is abutted by the positioning piece 9; then, the adjusting bolt 52 is rotated to drive the abutting head 53 at the end part to move towards the direction of the gear 81 so as to clamp the gear; finally, the height of the auxiliary support assembly 6 is adjusted to separate the end bracket 63 from the central axis of the workpiece 8.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a workpiece clamping device, includes base (1), fixing base (2), removes seat (3), chuck (4) and setting element (9), its characterized in that: a workpiece (8) with a gear (81) is clamped between the chuck (4) and the positioning piece (9), one side of the claw soft grab (41) of each chuck (4) far away from the fixed seat (2) is detachably provided with a lengthened claw (42), the lengthened claw (42) is L-shaped, a first mounting screw hole (43) is arranged at the longer end far away from the connecting part, a second screw hole (44) is arranged on the claw soft grab (41) corresponding to the first mounting screw hole (43), the lengthened clamping jaw (42) and the clamping jaw soft grab (41) are fixed through a screw (45), the end part of the short side of the lengthened clamping jaw (42) is provided with a fixing plate (46) in parallel with the long side thereof, a locking component (5) is arranged on the fixing plate (46) towards the direction of the claw soft grab (41), the base (1) is positioned between the fixed seat (2) and the movable seat (3) and is slidably connected with two auxiliary supporting components (6).

2. A workpiece holding apparatus as claimed in claim 1, characterised in that: locking Assembly (5) are including seting up regulation screw (51) on fixed plate (46), regulation screw (51) department is worn to be equipped with adjusting bolt (52), adjusting bolt (52) are close to the coaxial head (53) that support that is equipped with of tip that the soft (41) of grabbing of jack catch.

3. A workpiece holding apparatus as claimed in claim 1, characterised in that: the side wall of the lengthened clamping jaw (42) between the long edge of the lengthened clamping jaw and the fixing plate (46) is provided with a plurality of anti-skidding threads (47).

4. A workpiece holding apparatus as claimed in claim 1, characterised in that: base (1) long limit lateral wall is equipped with two spout (11) relatively, base (1) lateral wall is worn to be equipped with locking bolt (12), locking bolt (12) tip tightly supports base (1) lateral wall, supplementary supporting component (6) are including slide (61) of sliding connection on spout (11), slide (61) top is equipped with flexible supporting component (62), flexible supporting component (62) top is equipped with bracket (63) that the upper surface is smooth cambered surface.

5. A workpiece holding apparatus as set forth in claim 4 wherein: the telescopic supporting component (62) comprises two vertical rotary screws (621) connected to the top of the sliding base (61), a sliding block (622) is arranged on the top of each screw (621) in a sliding mode, a sleeve (623) is arranged on the top of each sliding block (622), the sleeve (623) is sleeved outside the screw (621), the top of each sleeve (623) is connected with a mounting plate (624) together, the mounting plates (624) are parallel to the fixing base (2), the top of the sliding base (61) is located at two double-shaft motors (625) arranged between the screws (621), an output shaft of each double-shaft motor (625) is coaxially connected with a driving bevel gear (626), and the bottom end of each screw (621) is coaxially connected with a driven bevel gear (627) meshed with the driving bevel gear (626).

6. A workpiece holding apparatus as claimed in claim 5, characterised in that: the outer side of the double-shaft motor (625) and the outer side of the meshing part of the driving bevel gear (626) and the driven bevel gear (627) are covered with a protective cover (628), and the side wall of the protective cover (628) is provided with a heat radiation hole (629).

7. A workpiece holding apparatus as claimed in claim 6, characterised in that: the protective cover (628) and the sliding block (622) are provided with a corrugated hose (7), and the corrugated hose (7) is sleeved outside the screw rod (621).

8. A workpiece holding apparatus as claimed in claim 5, characterised in that: the bracket (63) comprises a connecting plate (632) fixed at the top of the mounting plate (624) through a fixing screw (631), an object placing plate (633) with a smooth and arc-shaped upper surface is fixed at the top of the connecting plate (632), and a fixing column (634) is fixedly arranged between the connecting plate (632) and the object placing plate (633).