CN102581656B - Pushing mechanism and fixture therewith - Google Patents

Abstract

A pushing mechanism includes a threaded sleeve, a supporting plate, a threaded adjustment piece and a threaded pushing piece connected with the supporting plate, and the threaded pushing piece can move relative to the supporting plate along the axis direction parallel to the threaded pushing piece. The threaded sleeve is provided with a threaded hole, and the threaded adjustment piece passes through the support plate and is threadedly engaged with the threaded hole. The thread adjusting part includes a pressing part, and the threaded sleeve and the pressing part are respectively located on both sides of the supporting plate, and the pressing part can compress or loosen the supporting plate. The present invention also provides a fixture with the above-mentioned pushing mechanism. The pushing mechanism and the fixture with the pushing mechanism of the present invention can save time for positioning and clamping workpieces, and are beneficial to improve production efficiency.

Description

Pushing mechanism and clamp with the pushing mechanism

technical field

The invention relates to the field of machining, in particular to a pushing mechanism and a clamp with the pushing mechanism.

Background technique

In the process of machining mechanical parts, if the parts to be processed are small batches and multi-variety, it is necessary to frequently replace the workpieces on the machine tool. Today's machine tools generally use highly versatile, simple and practical manual fixtures to position and clamp workpieces. For different workpieces, the six degrees of freedom of the workpiece (that is, the freedom of movement along the three coordinate axes of X, Y, and Z and the freedom of movement around X, The rotation degrees of freedom of the three coordinate axes of Y and Z) to achieve positioning and clamping of the workpiece, and then process the workpiece.

When using a horizontal machine tool, such a situation usually occurs. When the surface of the workpiece to be processed is the pushing surface of the workpiece, after the workpiece is positioned and clamped, the workpiece pushing mechanism needs to be removed, and then the pushing surface of the workpiece needs to be removed. Process against the surface, otherwise the pushing mechanism of the workpiece will interfere with the machining tool of the machine tool and cannot be processed. Therefore, every time a workpiece is processed, the pushing mechanism needs to be disassembled, which greatly increases the extra workload of the worker and increases the time for positioning and clamping the workpiece. Save and manage.

Contents of the invention

The purpose of the present invention is to provide a pushing mechanism, which can save time for workpiece positioning and clamping, and is beneficial to improve production efficiency.

The purpose of the present invention is also to provide a fixture with a pushing mechanism, which can save time for workpiece positioning and clamping, and is conducive to improving production efficiency.

In order to achieve the above advantages, the present invention provides a pushing mechanism, which includes a threaded sleeve, a support plate, a threaded adjustment piece and a threaded pushing piece connected to the supporting plate, and the threaded pushing piece is along the axis parallel to the threaded pushing piece. The direction can move relative to the support plate. The threaded sleeve is provided with a threaded hole, and the threaded adjustment piece passes through the support plate and is threadedly engaged with the threaded hole. The thread adjusting part includes a pressing part, and the threaded sleeve and the pressing part are respectively located on both sides of the supporting plate, and the pressing part can compress or loosen the supporting plate.

In an embodiment of the present invention, the threaded adjusting member further includes an adjusting head and an adjusting threaded portion, and the adjusting head, the pressing portion, and the adjusting threaded portion are connected in sequence. The adjusting thread part is threadedly engaged with the threaded sleeve, and the threaded adjusting part can move relative to the threaded sleeve and the support plate along the axis direction parallel to the threaded adjusting part.

In one embodiment of the present invention, the axial direction of the threaded pushing member is parallel to the axial direction of the threaded adjusting member.

In one embodiment of the present invention, the threaded adjustment member further includes a transition portion and a supporting fitting portion, the adjusting head, the transition portion, the pressing portion, the supporting fitting portion and the adjusting threaded portion are sequentially connected, and the supporting plate is provided with an adjusting The matching hole, the supporting matching part is accommodated in the adjusting matching hole.

In one embodiment of the present invention, the threaded pushing member includes a head, a pushing threaded part and a nut, the pushing threaded part is connected with the head, the nut thread fits on the pushing threaded part, and the support plate is provided with Pushing against the threaded hole, the pushing against the threaded part passes through the pushing against the threaded hole of the support plate and is threadedly engaged with the pushing against the threaded hole.

In one embodiment of the present invention, the support plate has a first side and a second side opposite to the first side, the nut and the pressing part are located next to the first side of the support plate, and the threaded sleeve is located next to the second side .

In one embodiment of the present invention, the threaded pushing member further has a pushing end, which is located at the end away from the head, and is used for pushing against the workpiece.

The present invention also provides a fixture with a pushing mechanism, which includes a fixture bottom plate, a support block, a positioning bracket, and a pushing mechanism, the support block, the positioning bracket, and the pushing mechanism are fixedly connected to the fixture bottom plate, and the support block is used to place the workpiece. The positioning bracket is provided with a positioning piece, and the pushing mechanism includes a threaded sleeve, a support plate, a threaded adjustment piece and a threaded pushing piece connected with the supporting plate. When the plate moves, the threaded push piece is arranged opposite to the positioning piece, and the support block is located between the threaded push piece and the positioning piece. The threaded sleeve is fixedly connected with the bottom plate of the fixture. The threaded sleeve is provided with a threaded hole. The threaded adjustment part passes through the support plate and fits with the threaded hole. The threaded adjustment part includes a pressing part, and the threaded sleeve and the pressing part are respectively located on both sides of the supporting plate. , the pressing part can compress or loosen the support plate.

In one embodiment of the present invention, the clamp with a pushing mechanism further includes a connecting bracket, the connecting bracket is fixedly connected to the bottom plate of the clamp, and the threaded sleeve is fixedly connected to the connecting bracket.

In one embodiment of the present invention, the positioning member includes a positioning bolt and a positioning nut, and a positioning screw hole is opened on the positioning bracket, and the positioning bolt passes through the positioning screw hole and the positioning nut and is threadedly matched with the positioning screw hole and the positioning nut .

In the pushing mechanism of the present invention and the clamp with the pushing mechanism, the pressing part of the threaded adjusting part can compress or loosen the support plate, because the threaded adjusting part passes through the supporting plate and is threadedly engaged with the threaded hole, when the pressing part When the support plate is pressed by the pressing part, the support plate is fixed relative to the threaded adjusting part and the threaded sleeve. When the pressing part relaxes the supporting plate, the supporting plate can rotate around the axis of the threaded adjusting part together with the threaded pushing part. In this way, after the threaded pusher completes the push and positioning of the workpiece, the threaded pusher can be removed by rotating the support plate. When the next workpiece needs to be pushed and positioned, the support plate can be rotated and pressed tightly. The threaded push-rest member is reset without repeated disassembly and assembly of the push-rest mechanism, which saves the time for workpiece positioning and clamping, and is conducive to improving production efficiency.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a clamp with a pushing mechanism of the present invention.

FIG. 2 is a schematic partial cross-sectional view of the connecting bracket of the clamp with the pushing mechanism in FIG. 1 .

FIG. 3 is a schematic side view of the connecting bracket in FIG. 2 .

FIG. 4 is a schematic cross-sectional view of a threaded sleeve of the clamp with a pushing mechanism in FIG. 1 .

FIG. 5 is a schematic plan view of a threaded adjustment member of the clamp with a pushing mechanism in FIG. 1 .

FIG. 6 is a schematic side view of the pushing mechanism of the clamp with pushing mechanism shown in FIG. 1 .

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation of the pushing mechanism and the clamp with the pushing mechanism according to the present invention will be described below in conjunction with the accompanying drawings and preferred embodiments. , structure, feature and effect thereof, detailed description is as follows.

FIG. 1 is a schematic cross-sectional view of a clamp with a pushing mechanism of the present invention. Please refer to FIG. 1 , the clamp 10 with a pushing mechanism in this embodiment is used to clamp a workpiece 20, and clamp and position the workpiece 20. The workpiece 20 has a positioning surface 20a and a pushing surface 20b opposite to the positioning surface 20a. , the pushing surface 20b is the surface of the workpiece 20 to be processed. The fixture 10 with pushing mechanism comprises fixture bottom plate 11, supporting block 12, positioning bracket 13, connecting bracket 14 and pushing against mechanism 100, and supporting block 12, positioning bracket 13 and connecting bracket 14 are fixedly connected with fixture bottom plate 11, and supporting block 12 Located between the positioning bracket 13 and the connecting bracket 14 , the pushing mechanism 100 is fixed on the connecting bracket 14 . Wherein, the pushing mechanism 100 includes a threaded sleeve 15 , a support plate 16 , a threaded adjusting member 17 and a threaded pushing member 18 , and the threaded sleeve 15 is fixed on the connecting bracket 14 . The threaded adjustment member 17 passes through the support plate 16 and is threadedly engaged with the threaded sleeve 152 . The threaded pusher 18 is connected to the support plate 16 , and the threaded pusher 18 can move relative to the support plate 16 along the axis direction parallel to the threaded pusher 18 . The axial direction of the threaded pushing member 18 is parallel to the axial direction of the threaded adjusting member 17 .

In detail, the jig bottom plate 11 is, for example, a flat structure, which supports the entire jig 10 with a pushing mechanism. A plurality of connection holes 11a can be provided on the fixture bottom plate 11. The connection holes 11a are stepped holes with an inverted T-shaped cross section. Bolts can be inserted from the side of the fixture bottom plate 11 into the corresponding connection holes 11a.

The cross-section of the support block 12 is generally an inverted T shape, and the width of the end close to the fixture bottom plate 11 is greater than the width of the end far away from the fixture bottom plate 11 . The support block 12 is used to carry the workpiece 20, which can be fixed on the fixture bottom plate 11 by a locking member.

The bottom of the positioning bracket 13 is provided with an assembly hole (not shown in the figure), and the bolt 111 passes through the connecting hole 11a of the fixture bottom plate 11 and the assembly hole of the positioning bracket 13, and is threaded with a nut to fix the positioning bracket 13 on the fixture bottom plate 11 superior. A positioning piece 131 is further provided at an end of the positioning bracket 13 away from the clamp bottom plate 11 . In this implementation, the locating member 131 is a cooperating structure of a bolt and a nut, which includes a locating bolt 131a and a locating nut 131b. The locating bracket 13 is provided with a locating threaded hole, and the screw rod of the locating bolt 131a passes through the locating threaded hole of the locating bracket 13. and the positioning nut 131b and threadedly engaged with the positioning threaded hole and the positioning nut 131b. The axial direction of the positioning bolt 131a is parallel to the X-axis direction shown in FIG. 1 , and the positioning bolt 131a can move along the direction parallel to the X-axis. One end of the positioning bolt 131 a close to the support block 12 is an arc-shaped positioning end surface 131 c, which can be a positioning reference of the workpiece 20 . The positioning end surface 131c can abut against the positioning surface 20a of the workpiece 20 to position the workpiece 20 .

FIG. 2 is a schematic partial cross-sectional view of the connecting bracket of the clamp with the pushing mechanism in FIG. 1 . FIG. 3 is a schematic side view of the connecting bracket in FIG. 2 . Please refer to Fig. 2 and Fig. 3 together. The cross-section of the connecting bracket 14 is generally L-shaped, and an assembly hole (not shown in the figure) is opened at the bottom thereof. hole, and threaded with the nut, and the connecting bracket 14 is fixed on the fixture bottom plate 11. The connecting bracket 14 is provided with accommodating holes 142 and a plurality of threaded holes 143, and these threaded holes 143 are evenly distributed around the accommodating holes 142. The axes of the setting holes 142 and the threads of the holes 143 are parallel to the X-axis direction shown in FIG. 1 . In this embodiment, the connecting bracket 14 is used for fixed connection with the fixture bottom plate 11 and the pushing mechanism 100. In other embodiments, the connecting bracket 14 can be integrally formed with the fixture bottom plate 11, and the pushing mechanism 100 is directly fixed on the fixture bottom plate. 11 is enough.

It should be noted that, for the convenience of description, FIG. 1 only schematically shows one bolt 111 and one bolt 112. In actual operation, the positioning bracket 13 can be fixed on the fixture bottom plate 11 by a plurality of bolts 111. A bolt 112 fixes the connecting bracket 14 on the bottom plate 11 of the fixture. The locking elements between the positioning bracket 13 and the connecting bracket 14 and the fixture bottom plate 11 are not limited to bolts.

FIG. 4 is a schematic cross-sectional view of a threaded sleeve of the clamp with a pushing mechanism in FIG. 1 . Please refer to Fig. 4, Fig. 1 and Fig. 2, the threaded sleeve 15 includes a fitting portion 151, the fitting portion 151 is, for example, cylindrical, with a threaded hole 152 opened thereon, and a plurality of stepped holes 153 are opened on the threaded sleeve 15, The stepped holes 153 can be evenly distributed around the threaded holes 152 , and the axes of the threaded holes 152 and the stepped holes 153 are parallel to the X-axis direction shown in FIG. 1 . The sleeve part 151 can be accommodated in the receiving hole 142 of the connecting bracket 14, and these stepped holes 153 correspond to the threaded holes 143 one by one. When assembling, a plurality of screws (not shown) can be respectively inserted in the stepped holes 153 and It is threadedly matched with the corresponding threaded hole 143 to fix the threaded sleeve 15 and the connecting bracket 14 together.

The support plate 16 can be a flat structure, which has a first side 16a and a second side 16b opposite to the first side 16a. The support plate 16 is also provided with an adjustment fitting hole 16a and a push-off threaded hole (not shown), wherein the adjustment fit hole 161 can be used for the threaded adjustment member 17 to pass through, and the push-up threaded hole can be used for the threaded pusher member 18 to pass through and be connected with The threaded pushing part 18 is threadedly fitted.

FIG. 5 is a schematic plan view of a threaded adjustment member of the clamp with a pushing mechanism in FIG. 1 . Please refer to FIG. 5 and FIG. 1 , the thread adjusting member 17 is a locking screw, but not limited thereto. The threaded adjusting member 17 is an integrally formed structure, which includes an adjusting head 171 , a transition portion 172 , a pressing portion 173 , a supporting matching portion 174 and an adjusting threaded portion 175 . The adjusting head 171 , the transition portion 172 and the pressing portion 173 are disposed beside the first side surface 16 a of the supporting plate 16 , and the pressing portion 173 can compress or loosen the supporting plate 16 . The supporting matching portion 174 is accommodated in the adjusting fitting hole 161 of the supporting plate 16, and the adjusting threaded portion 175 is arranged beside the second side 16b of the supporting plate 16, and is threadedly matched with the threaded hole 152 of the threaded sleeve 15, so that the supporting plate 16 and the The threaded sleeves 15 are connected together, and the threaded sleeves 15 and the pressing portion 173 are respectively located on two sides of the support plate 16 . The axis of the thread adjusting member 17 is the axis A shown in FIG. 1 , and the axis A is parallel to the X-axis direction, and the thread adjusting member 17 can move along the direction parallel to the axis A. As shown in FIG. The structure of the threaded adjusting member 17 is not limited to this embodiment. In other implementations, the transition portion 172 or the supporting fitting portion 174 can be omitted. If the supporting fitting portion 174 is omitted, the length of the adjusting threaded portion 175 can be lengthened, and part of the adjusting threaded portion 175 is accommodated in the adjustment fitting hole 161 .

In this embodiment, the threaded pushing member 18 is arranged opposite to the positioning member 131 , which is a cooperation structure of a bolt and a nut, but it is not limited thereto. The threaded part 18 includes a head 181, a threaded part 182 and a nut 183. The threaded part 182 is connected to the head 181, that is, the threaded part 182 is integrally formed with the head 181, and the nut 183 is threaded to fit the pusher. On the threaded part 182, the pushing threaded part 182 passes through the pushing threaded hole of the support plate 16 and is threadedly matched with the pushing threaded hole, and the nut 183 and the head 181 are located beside the first side 16a of the support plate 16, and the nut 183 Can be in contact with the first side 16a. The threaded push member 18 also has a push end 18a, which is located at an end away from the head 181, and is used to resist the push surface 20b of the workpiece 20, and push the workpiece 20 to the positioning member 131, so as to The positioning of the workpiece 20 is realized. The threaded pushing member 18 can move relative to the support plate 16 along a direction parallel to its axis, and the axial direction of the threaded pushing member 18 is parallel to the axial direction of the threaded adjusting member 17 , and both are parallel to the X-axis direction. The structure and installation method of the threaded push member 18 are not limited to this embodiment. In other embodiments, the nut 183 can be located beside the second side 16b of the support plate 16 and can be in contact with the second side 16b, or the nut 183 can be omitted. 183.

Please refer to FIG. 4 together. The working principle of the pushing mechanism 100 is that when the adjusting head 171 is rotated clockwise around the axis A, the adjusting threaded part 175 rotates in the threaded hole 152, and the threaded adjusting member 17 moves along the axis A. Moving towards the direction close to the threaded sleeve 15, the pressing part 173 can be opposed to the first side 16a of the support plate 16, and the resistance force between the support plate 16 and the pressing part 173 can be adjusted by rotating the adjustment head 171. The tightening portion 173 presses the support plate 16 such that the support plate 16 cannot rotate around the axis A.

FIG. 6 is a schematic side view of the pushing mechanism of the clamp with pushing mechanism shown in FIG. 1 . Please also refer to FIG. 6 , when the adjusting head 171 is rotated counterclockwise around the axis A, the adjusting threaded portion 175 rotates in the threaded hole 152 , and the threaded adjusting member 17 moves away from the threaded sleeve 15 along the axis A, When the pressing part 173 is no longer in contact with the first side 16a of the support plate 16, that is, the pressing part 173 releases the support plate 16, the support plate 16 together with the threaded push member 18 can rotate around the axis A to swing towards the clamp One side of the bottom plate 11.

It should be noted that the fixture 10 with a pushing mechanism can also include multiple clamping mechanisms (not shown in the figure) to clamp the workpiece 20 and limit the six degrees of freedom of the workpiece 20 (that is, along the X, Y, The degree of freedom of movement of the three coordinate axes of Z and the degree of freedom of rotation around the three coordinate axes of X, Y, and Z shown in FIG. 1 ) are convenient for processing the workpiece 20 .

When processing the workpiece 20, the workpiece 20 can be placed on the support block 12 of the fixture 10 with a pushing mechanism, the positioning surface 20a of the workpiece 20 faces the positioning member 131, and the pushing surface 20b of the workpiece 20 faces the threaded pushing member 18; then, rotate the head 181 of the threaded pusher 18 so that the threaded pusher 18 moves toward the workpiece 20 in a direction parallel to the X axis, until the pusher end 18a abuts against the pusher surface 20b, and the workpiece 20 Pushing toward the positioning end surface 131c of the positioning member 131, when the positioning end surface 131c abuts against the positioning surface 20a, the positioning of the workpiece 20 is completed. Since the pushing surface 20b is a processed surface, the threaded pushing member 18 needs to be removed to process the pushing surface 20b. At this time, the threaded pushing member 18 can be adjusted first so that the threaded pushing member 18 moves away from the workpiece 20, and when the pushing end 18a is no longer against the pushing surface 20b, the thread of the pushing mechanism 100 can be adjusted again. The adjustment member 17 moves along the axis A away from the threaded sleeve 15. When the pressing part 173 is no longer in contact with the first side 16a of the support plate 16, the support plate 16 is rotated around the axis A and the thread pushes against the member. 18 rotates together with support plate 16, and swings to one side of fixture bottom plate 11. After the threaded pushing member 18 is removed, the pushing surface 20b of the workpiece 20 can be processed by the tool 30, and the cutting tool 30 includes a machining tool head 301 in contact with the pushing surface 20b. After the workpiece 20 is processed, place the next workpiece 20 on the support block 12, turn the support plate 16 again, so that the threaded pushing part 18 is set opposite to the positioning part 131, and the threaded adjusting part 17 is adjusted so that the pressing part 173 is held against On the first side 16a of the support plate 16, the support plate 16 cannot rotate around the axis A; then, adjust the threaded push member 18, so that the push end 18a is against the push surface 20b of the next workpiece 20, so that the next A workpiece 20 is positioned, however, the threaded pusher 18 is removed, and the next workpiece 20 is processed, and the cycle is repeated.

In summary, the pushing mechanism of the present invention and the clamp having the pushing mechanism have at least the following advantages:

1. In the pushing mechanism of the present invention and the fixture with the pushing mechanism, the pressing part of the threaded adjustment part can compress or loosen the support plate, because the threaded adjustment part passes through the support plate and is threaded with the threaded hole, when When the pressing part compresses the supporting plate, the supporting plate is fixed relative to the threaded adjusting part and the threaded sleeve. When the pressing part relaxes the supporting plate, the supporting plate can rotate around the axis of the threaded adjusting part together with the threaded pushing part. In this way, after the threaded pusher completes the push and positioning of the workpiece, the threaded pusher can be removed by rotating the support plate. When the next workpiece needs to be pushed and positioned, the support plate can be rotated and pressed tightly. The threaded push-rest member is reset without repeated disassembly and assembly of the push-rest mechanism, which saves the time for workpiece positioning and clamping, and is conducive to improving production efficiency.

2. In an embodiment of the fixture with the pushing mechanism of the present invention, the threaded pushing piece is arranged opposite to the positioning piece, the supporting block is used to place the workpiece, and the supporting block is located between the threaded pushing piece and the positioning piece, The threaded pusher can push the workpiece toward the positioning member to position the workpiece.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A pushing mechanism (100), comprising a support plate (16) and a threaded pushing member (18) connected to the supporting plate (16), the threaded pushing member (18) is parallel to the thread The axial direction of the pushing member (18) can move relative to the support plate (16), and it is characterized in that, The pushing mechanism (100) also includes a threaded sleeve (15) and a threaded adjustment piece (17). The threaded sleeve (15) is provided with a threaded hole (152), and the threaded adjustment piece (17) passes through the support plate (16 ) and threaded with the threaded hole (152), the threaded adjustment piece (17) has an axis (A) and includes a pressing part (173), the threaded sleeve (15) and the pressing part (173) are respectively located in the On both sides of the supporting plate (16), the pressing part (173) compresses or loosens the supporting plate (16), and when the pressing part (173) releases the supporting plate (16), the supporting plate (16) It is provided between the threaded sleeve (15) and the pressing part (173) to be rotatable around the axis (A). the 2. The pushing mechanism (100) according to claim 1, characterized in that: the thread adjusting member (17) further comprises an adjusting head (171) and the adjusting threaded portion (175), and the adjusting head (171 ), the pressing part (173) and the adjusting threaded part (175) are connected in sequence, the adjusting threaded part (175) is threadedly matched with the threaded sleeve (15), and the threaded adjusting part (17) is parallel to the thread The direction of the axis (A) of the adjustment member (17) can move relative to the threaded sleeve (15) and the support plate (16). the 3. The pushing mechanism (100) according to claim 2, characterized in that: the axial direction of the threaded pushing member (18) is parallel to the axis (A) direction of the threaded adjusting member (17). the 4. The pushing mechanism (100) according to claim 2, characterized in that: the thread adjustment member (17) further comprises a transition portion (172) and a support fitting portion (174), the adjustment head (171), The transition part (172), the pressing part (173), the supporting fitting part (174) and the adjusting threaded part (175) are sequentially connected, and the supporting plate (16) is provided with an adjusting fitting hole (161), and the supporting The matching part (174) is accommodated in the adjusting matching hole (161). the 5. The pushing mechanism (100) according to claim 1, characterized in that: the threaded pushing member (18) comprises a head (181), a pushing threaded part (182) and a nut (183), the pushing The threaded part (182) is connected with the head (181), the nut (183) is screwed on the threaded part (182), the support plate (16) has a threaded hole, and the threaded part (182) passes through the pushing threaded hole of the support plate (16) and is threadedly engaged with the pushing threaded hole. the 6. The pushing mechanism (100) according to claim 5, characterized in that: the support plate (16) has a first side (16a) and a second side (16b) opposite to the first side (16a), The nut (183) and the pressing part (173) are located beside the first side (16a) of the support plate (16), and the threaded sleeve (15) is located beside the second side (16b). the 7. The pushing mechanism (100) according to claim 5, characterized in that: the threaded pushing member (18) also has a pushing end (18a), and the pushing end (18a) is located away from the head part (181) for pushing against the workpiece (20). the 8. A clamp (10) with a pushing mechanism, which includes a clamp bottom plate (11), a support block (12), a positioning bracket (13) and a pushing mechanism (100), the support block (12), the positioning The bracket (13) and the pushing mechanism (100) are fixedly connected with the fixture bottom plate (11), the support block (12) is used to place the workpiece (20), and the positioning bracket (13) is provided with a positioning piece (131) , the pushing mechanism (100) includes a supporting plate (16) and a threaded pushing piece (18) connected to the supporting plate (16), the threaded pushing piece (18) is parallel to the threaded pushing piece ( 18) The axial direction can move relative to the support plate (16), the threaded push piece (18) is set opposite to the positioning piece (131), and the support block (12) is located between the threaded push piece (18) and the positioning piece (131). Between the positioning parts (131), it is characterized in that, The pushing mechanism (100) also includes a threaded sleeve (15) and a threaded adjustment member (17), the threaded sleeve (15) is fixedly connected with the fixture bottom plate (11), and the threaded sleeve (15) is provided with a threaded hole (152 ), the threaded adjustment piece (17) passes through the support plate (16) and is threadedly engaged with the threaded hole (152), the threaded adjustment piece (17) has an axis (A) and includes a pressing portion (173), the The threaded sleeve (15) and the pressing part (173) are respectively located on both sides of the support plate (16), the pressing part (173) presses or loosens the support plate (16), and the pressing part (173) ) When the support plate (16) is loosened, the support plate (16) can rotate around the axis (A) and is arranged between the threaded sleeve (15) and the pressing part (173). the 9. The clamp (10) with a pushing mechanism according to claim 8, characterized in that: the clamp (10) with a pushing mechanism further comprises a connecting bracket (14), and the connecting bracket (14) and the clamp The bottom plate (11) is fixedly connected, and the threaded sleeve (15) is fixedly connected with the connecting bracket (14). the 10. The clamp (10) with a pushing mechanism according to claim 8, characterized in that: the positioning member (131) includes a positioning bolt (131a) and a positioning nut (131b), and the positioning bracket (13) is provided with There is a positioning threaded hole, and the positioning bolt (131a) passes through the positioning threaded hole and the positioning nut (131b) and is threadedly engaged with the positioning threaded hole and the positioning nut (131b). the

Images