CN210819219U

CN210819219U - Positioning fixture

Info

Publication number: CN210819219U
Application number: CN201921312562.4U
Authority: CN
Inventors: 胡建珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-06-23
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a positioning clamp, which comprises a bottom shell, wherein a motor and a lead screw are arranged in the bottom shell, the motor drives the lead screw to rotate, the lead screw comprises a first lead screw and a second lead screw, a first movable block and a second movable block are sleeved on the first lead screw, a first positioning guide groove and a second positioning guide groove are arranged at the bottom of the bottom shell, a first movable clamping plate and a second movable clamping plate are arranged at the top of the bottom shell, and the first movable clamping plate and the second movable clamping plate are respectively connected with the first movable block and the second movable block; the third movable block and the fourth movable block are sleeved on the second lead screw, the third positioning guide groove and the fourth positioning guide groove are formed in the bottom of the bottom shell, the third movable clamp plate and the fourth movable clamp plate are arranged at the top of the bottom shell, and the third movable clamp plate and the fourth movable clamp plate are connected with the third movable block and the fourth movable block respectively. The utility model discloses a positioning fixture can carry out the ascending quick adjustment of a plurality of directions simultaneously, and the work piece of being convenient for pinpoints, improves production efficiency, convenient to use.

Description

Positioning fixture

Technical Field

The utility model relates to a mechanical fixture technical field, in particular to positioning fixture.

Background

During the production process, the fixture is used to hold the workpiece in the correct position for receiving the construction or inspection device. The traditional clamp is simple in structure, generally clamps and positions workpieces manually, but has the defects of low efficiency, inaccurate positioning and the like in manual operation. With the higher and higher precision requirements of products, the manual operation can not meet the actual requirements increasingly. Therefore, a new positioning fixture is needed in the market.

SUMMERY OF THE UTILITY MODEL

According to an aspect of the present invention, there is provided a positioning jig capable of solving one or more of the above-mentioned problems. The positioning clamp comprises a bottom shell, wherein a motor and a screw rod are arranged in the bottom shell, the motor drives the screw rod to rotate, the screw rod comprises a first screw rod and a second screw rod, and the first screw rod and the second screw rod are arranged in a crossed manner;

the first screw rod is sleeved with a first movable block and a second movable block, the first movable block and the second movable block axially move along the first screw rod, the bottom of the bottom shell is provided with a first positioning guide groove and a second positioning guide groove, the top of the bottom shell is provided with a first movable clamping plate and a second movable clamping plate, and the first movable clamping plate and the second movable clamping plate are respectively connected with the first movable block and the second movable block so as to enable the first movable clamping plate and the second movable clamping plate to respectively move back and forth along the first positioning guide groove and the second positioning guide groove;

third movable block and fourth movable block are established to the cover on the second lead screw, third movable block and fourth movable block along second lead screw axial motion, the bottom of drain pan sets up third location guide way and fourth location guide way, the top of drain pan sets up third movable clamp plate and fourth movable clamp plate, third movable clamp plate and fourth movable clamp plate are connected with third movable block and fourth movable block respectively, make third movable clamp plate and fourth movable clamp plate follow third location guide way and fourth location guide way round trip movement respectively.

In some embodiments, the motor includes a first motor having a first motor transmission wheel disposed thereon and a second motor having a second motor transmission wheel disposed thereon.

In some embodiments, the first screw rod comprises a first adjusting screw rod and a second adjusting screw rod, the first movable block and the second movable block are respectively sleeved on the first adjusting screw rod and the second adjusting screw rod, the first adjusting screw rod and the second adjusting screw rod are provided with reverse threads and are connected through a first screw rod transmission wheel, and the first screw rod transmission wheel is connected with a first motor transmission wheel through a first transmission belt.

In some embodiments, the second screw rod comprises a third adjusting screw rod and a fourth adjusting screw rod, the third movable block and the fourth movable block are respectively sleeved on the third adjusting screw rod and the fourth adjusting screw rod, the third adjusting screw rod and the fourth adjusting screw rod are provided with reverse threads and are connected through a second screw rod transmission wheel, and the second screw rod transmission wheel is connected with a second motor transmission wheel through a second transmission belt.

In some embodiments, the bottom of the first movable clamp plate is provided with at least one first supporting sliding portion, the first supporting sliding portion is connected to the first movable block, the bottom shell is provided with a first sliding groove matched with the first supporting sliding portion, so that the first supporting sliding portion slides along the first sliding groove, the bottom of the second movable clamp plate is provided with at least one second supporting sliding portion, the second supporting sliding portion is connected to the second movable block, and the bottom shell is provided with a second sliding groove matched with the second supporting sliding portion, so that the second supporting sliding portion slides along the second sliding groove. The first support sliding part and the second support sliding part respectively keep the first movable clamping plate and the second movable clamping plate stable when moving.

In some embodiments, at least one third supporting sliding portion is disposed at the bottom of the third movable clamp plate, the third supporting sliding portion is connected to the third movable block, a third sliding slot is disposed on the bottom case, the third sliding slot is matched with the third supporting sliding portion, so that the third supporting sliding portion slides along the third sliding slot, at least one fourth supporting sliding portion is disposed at the bottom of the fourth movable clamp plate, the fourth supporting sliding portion is connected to the fourth movable block, and a fourth sliding slot is disposed on the bottom case, the fourth sliding slot is matched with the fourth supporting sliding portion, so that the fourth supporting sliding portion slides along the fourth sliding slot. The third supporting sliding part and the fourth supporting sliding part respectively keep the third movable clamping plate and the fourth movable clamping plate stable when moving.

In some embodiments, the first movable clamping plate, the second movable clamping plate, the third movable clamping plate and the fourth movable clamping plate enclose a clamping space therebetween for placing a workpiece.

In some embodiments, a control chip is disposed in the bottom case, and the control chip is connected with the motor.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a positioning fixture can carry out the ascending quick adjustment of a plurality of directions simultaneously through motor drive, and the work piece of being convenient for pinpoints, improves production efficiency, convenient to use.

Drawings

Fig. 1 is a schematic view of a first structure of the positioning fixture of the present invention;

FIG. 2 is a second structural diagram of the positioning fixture of the present invention;

fig. 3 is a schematic view of a third structure of the positioning fixture of the present invention.

In the drawings, reference numerals indicate that a bottom case 1, a motor 2, a lead screw 3, a first lead screw 4, a second lead screw 5, a first movable block 6, a second movable block 7, a third movable block 8, a fourth movable block 9, a control chip 10, a first positioning guide groove 11, a second positioning guide groove 12, a first movable clamp 13, a second movable clamp 14, a third movable clamp 15, a fourth movable clamp 16, a third positioning guide groove 17, a fourth positioning guide groove 18, a first transfer belt 19, a second transfer belt 20, a first motor 21, a second motor 22, a first motor transfer wheel 23, a second motor transfer wheel 24, a first adjustment lead screw 41, a second adjustment lead screw 42, a first lead screw transfer wheel 43, a third adjustment lead screw 51, a fourth adjustment lead screw 52, a second lead screw transfer wheel 53, a first support sliding portion 131, a second support sliding portion 141, a third support sliding portion 151, a fourth support sliding portion 161, a first slide groove 111, a second slide groove 112, a third slide groove 113, and a fourth slide groove 114.

Detailed Description

To facilitate understanding of the present invention for those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.

Fig. 1 to 3 schematically show a positioning fixture according to the present invention.

As shown in fig. 1 to 3, the positioning fixture of the present invention includes a bottom casing 1, and the bottom casing 1 is substantially rectangular. The bottom shell 1 may also be designed into other shapes according to actual needs, and is not limited herein. The bottom shell 1 is internally provided with a screw rod 3 and a motor 2, and the screw rod 3 is driven by the motor 2 to rotate. The motor 2 includes a first motor 21 and a second motor 22. The first motor 21 is provided with a first motor transmission wheel 23, and the first motor 21 drives the first motor transmission wheel 23 to rotate. The second motor 22 is provided with a second motor transmission wheel 24, and the second motor 22 drives the second motor transmission wheel 24 to rotate. The screw rod 3 comprises a first screw rod 4 and a second screw rod 5, and the first screw rod 4 and the second screw rod 5 are arranged in a crossed mode. Preferably, the first screw rod 4 and the second screw rod 5 are distributed perpendicular to each other. The two ends of the first screw rod 4 are respectively and rotatably arranged on the side walls of the two long edges of the bottom shell 1, and the two ends of the second screw rod 5 are respectively and rotatably arranged on the side walls of the two short edges of the bottom shell 1.

As shown in fig. 1 to 3, the first lead screw 4 includes a first adjustment lead screw 41 and a second adjustment lead screw 42. The first and second adjusting

screws

41, 42 are provided with reverse threads and are connected by a first screw transfer wheel 43. The first adjusting screw 41 is sleeved with the first movable block 6, the second adjusting screw 42 is sleeved with the second movable block 7, and when the first adjusting screw 41 and the second adjusting screw 42 rotate simultaneously, the first movable block 6 and the second movable block 7 move axially in opposite directions or back to back. The top of the bottom shell 1 is provided with a first movable clamping plate 13 and a second movable clamping plate 14, and the first movable clamping plate 13 and the second movable clamping plate 14 are arranged in parallel. The first movable clamp 13 is connected to the first movable block 6, and the second movable clamp 14 is connected to the second movable block 7. The top of the bottom case 1 is provided with a first positioning guide groove 11 and a second positioning guide groove 12. The first positioning guide groove 11 and the second positioning guide groove 12 are both strip-shaped grooves penetrating through the top and the bottom of the bottom shell 1, and the first movable block 6 and the second movable block 7 drive the first movable clamp plate 13 and the second movable clamp plate 14 to move back and forth along the first positioning guide groove 11 and the second positioning guide groove 12 respectively during movement. Preferably, the number of the first positioning guide grooves 11 and the second positioning guide grooves 12 is two. Two first supporting sliding portions 131 arranged in parallel are arranged at the middle position of the bottom of the first movable clamping plate 13, and the first supporting sliding portions 131 are located in the bottom case 1 and fixedly connected with the first movable block 6. The bottom of the bottom case 1 is provided with a first sliding chute 111 matched with the first supporting sliding part 131, and the first supporting sliding part 131 can slide back and forth along the first sliding chute 111. Two second supporting sliding parts 141 arranged in parallel are arranged at the middle position of the bottom of the second movable clamping plate 14, and the second supporting sliding parts 141 are located in the bottom shell 1 and fixedly connected with the second movable block 7. The bottom of the bottom case 1 is provided with a second sliding chute 112 matched with the second supporting sliding part 141, and the second supporting sliding part 141 can slide back and forth along the second sliding chute 112. The first and second

support sliding portions

131 and 141 stabilize the first and second moving

clamps

13 and 14 while moving, respectively. The first motor transmission wheel 23 is connected to the first spindle transmission wheel 43 via the first transmission belt 19. After the first motor 21 is started, the first motor transmission wheel 23 is driven to rotate, and the first screw rod transmission wheel 43 is driven to rotate through the first transmission belt 19.

As shown in fig. 1 to 3, the second lead screw 5 includes a third lead screw 51 and a fourth lead screw 52, and the third lead screw 51 and the fourth lead screw 52 are provided with reverse threads and are connected through a second lead screw transmission wheel 53. The third adjusting screw 51 is sleeved with the third movable block 8, the fourth adjusting screw 52 is sleeved with the fourth movable block 9, and when the third adjusting screw 51 and the fourth adjusting screw 52 rotate simultaneously, the third movable block 8 and the fourth movable block 9 move axially in opposite directions or back to back. The third movable clamping plate 15 and the fourth movable clamping plate 16 are arranged on the top of the bottom shell 1, and the third movable clamping plate 15 and the fourth movable clamping plate 16 are arranged in parallel. The third movable clamp 15 is connected with the third movable block 8, and the fourth movable clamp 16 is connected with the fourth movable block 9. The top of the bottom case 1 is provided with a third positioning guide groove 17 and a fourth positioning guide groove 18. The third positioning guide groove 17 and the fourth positioning guide groove 18 are both elongated grooves penetrating through the top and the bottom of the bottom case 1, and the third movable block 8 and the fourth movable block 9 drive the third movable clamp plate 15 and the fourth movable clamp plate 16 to move back and forth along the third positioning guide groove 17 and the fourth positioning guide groove 18 respectively when moving. Preferably, the number of the third positioning guide grooves 17 and the fourth positioning guide grooves 18 is two. Two third supporting sliding portions 151 arranged in parallel to each other are disposed at the middle position of the bottom of the third movable clamping plate 15, and the third supporting sliding portions 151 are located in the bottom case 1 and fixedly connected with the third movable block 8. The bottom of the bottom case 1 is provided with a third sliding slot 113 matched with the third supporting and sliding part 151, and the third supporting and sliding part 151 can slide back and forth along the third sliding slot 113. Two fourth supporting sliding portions 161 arranged in parallel are disposed at the middle position of the bottom of the fourth movable clamping plate 16, and the fourth supporting sliding portions 161 are located in the bottom case 1 and fixedly connected with the fourth movable block 9. The bottom of the bottom case 1 is provided with a fourth sliding slot 114 matched with the fourth supporting sliding part 161, and the fourth supporting sliding part 161 can slide back and forth along the fourth sliding slot 114. The third and fourth supporting sliding

portions

151 and 161 stabilize the third and fourth moving clamps 15 and 16 while moving, respectively. The second motor transmission wheel 24 is connected with the second screw transmission wheel 53 through the second transmission belt 20. After the second motor 22 is started, the second motor transmission wheel 24 is driven to rotate, and the second screw rod transmission wheel 53 is driven to rotate through the second transmission belt 20.

The first movable clamping plate 13, the second movable clamping plate 14, the third movable clamping plate 15 and the fourth movable clamping plate 16 enclose a clamping space for placing a workpiece.

When the device is used, the motor 2 is started, the first motor 21 and the second motor 22 simultaneously drive the first motor transmission wheel 23 and the second motor transmission wheel 24 respectively, the first motor transmission wheel 23 drives the first lead screw transmission wheel 43 through the first transmission belt 19, the second motor transmission wheel 24 simultaneously drives the second lead screw transmission wheel 53 through the second transmission belt 20, the first lead screw 4 and the second lead screw 5 simultaneously rotate, the first movable block 6 on the first adjusting lead screw 41 and the second movable block 7 on the second adjusting lead screw 42 axially move in opposite directions, the first movable block 6 and the second movable block 7 drive the first movable clamp plate 13 and the second movable clamp plate 14 to respectively axially move along the first positioning guide groove 11 and the second positioning guide groove 12, the third movable block 8 on the third adjusting lead screw 51 and the fourth movable block 9 on the fourth adjusting lead screw 52 axially move in opposite directions, and the third movable block 8 and the fourth movable block 9 drive the third movable clamp plate 15 and the fourth movable clamp plate 16 respectively along the third positioning guide groove 11 and the fourth positioning guide groove 12 The guide groove 17 and the fourth positioning guide groove 18 move oppositely, and the first movable clamping plate 13, the second movable clamping plate 14, the third movable clamping plate 15 and the fourth movable clamping plate 16 draw close and clamp the workpiece from four different directions, so that quick adjustment in multiple directions is realized, the workpiece is conveniently and accurately positioned, and the production efficiency is improved. After the first movable clamping plate 13, the second movable clamping plate 14, the third movable clamping plate 15 and the fourth movable clamping plate 16 clamp the workpiece, the first screw rod 4 and the second screw rod 5 stop rotating, at this time, the first motor 21 and the second motor 22 continue to drive the first motor transmission wheel 23 and the second motor transmission wheel 24 to rotate, and drive the first transmission belt 19 and the second transmission belt 20 to idle until the first motor 21 and the second motor 22 stop working. The first and second conveyor belts 19 and 20 are used to prevent damage to the motor. Preferably, a control chip 10 is arranged in the bottom case 1, and the control chip 10 is connected with the motor 2. The control chip 10 presets the output power of the motor 2 to be a preset value, and when the output power of the motor 2 exceeds the preset value, the control chip 10 controls the motor 2 to stop working.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. A positioning fixture, includes drain pan (1), its characterized in that: a motor (2) and a screw rod (3) are arranged in the bottom shell (1), the motor (2) drives the screw rod (3) to rotate, the screw rod (3) comprises a first screw rod (4) and a second screw rod (5), and the first screw rod (4) and the second screw rod (5) are arranged in a crossed manner;

a first movable block (6) and a second movable block (7) are sleeved on the first screw rod (4), the first movable block (6) and the second movable block (7) axially move along the first screw rod (4), a first positioning guide groove (11) and a second positioning guide groove (12) are formed in the bottom of the bottom shell (1), a first movable clamping plate (13) and a second movable clamping plate (14) are arranged on the top of the bottom shell (1), the first movable clamping plate (13) and the second movable clamping plate (14) are respectively connected with the first movable block (6) and the second movable block (7), and the first movable clamping plate (13) and the second movable clamping plate (14) respectively move back and forth along the first positioning guide groove (11) and the second positioning guide groove (12);

third movable block (8) and fourth movable block (9) are established to the cover on second lead screw (5), third movable block (8) with fourth movable block (9) are followed second lead screw (5) axial motion, the bottom of drain pan (1) sets up third location guide way (17) and fourth location guide way (18), the top of drain pan (1) sets up third movable clamp plate (15) and fourth movable clamp plate (16), third movable clamp plate (15) with fourth movable clamp plate (16) respectively with third movable block (8) with fourth movable block (9) are connected, make third movable clamp plate (15) with fourth movable clamp plate (16) are followed respectively third location guide way (17) with fourth location guide way (18) round trip movement.

2. The positioning jig of claim 1, wherein: the motor (2) comprises a first motor (21) and a second motor (22), a first motor transmission wheel (23) is arranged on the first motor (21), and a second motor transmission wheel (24) is arranged on the second motor (22).

3. The positioning jig of claim 2, wherein: first lead screw (4) include first accommodate the lead screw (41) and second accommodate the lead screw (42), first movable block (6) with second movable block (7) are established respectively first accommodate the lead screw (41) with on second accommodate the lead screw (42), first accommodate the lead screw (41) with second accommodate the lead screw (42) set up reverse screw and connect through first lead screw transmission wheel (43), first lead screw transmission wheel (43) through first transmission band (19) with first motor transmission wheel (23) are connected.

4. The positioning jig of claim 2, wherein: second lead screw (5) include third accommodate the lead screw (51) and fourth accommodate the lead screw (52), third movable block (8) with fourth movable block (9) are established respectively third accommodate the lead screw (51) with on fourth accommodate the lead screw (52), third accommodate the lead screw (51) with fourth accommodate the lead screw (52) set up reverse screw and connect through second lead screw transmission wheel (53), second lead screw transmission wheel (53) through second transmission band (20) with second motor transmission wheel (24) are connected.

5. The positioning jig of claim 1, wherein: the bottom of first movable clamp plate (13) sets up at least one first support sliding part (131), first support sliding part (131) with first movable block (6) are connected, set up on drain pan (1) with first support sliding part (131) matched with first spout (111), make first support sliding part (131) are followed first spout (111) slide, the bottom of second movable clamp plate (14) sets up at least one second support sliding part (141), second support sliding part (141) with second movable block (7) are connected, set up on drain pan (1) and support sliding part (141) matched with second spout (112) with the second, make second support sliding part (141) follow second spout (112) slide.

6. The positioning jig of claim 1, wherein: the bottom of third movable clamp plate (15) sets up at least one third and supports sliding part (151), third support sliding part (151) with third movable block (8) are connected, set up on drain pan (1) with third support sliding part (151) matched with third spout (113), make third support sliding part (151) are followed third spout (113) slide, the bottom of fourth movable clamp plate (16) sets up at least one fourth support sliding part (161), fourth support sliding part (161) with fourth movable block (9) are connected, set up on drain pan (1) with fourth support sliding part (161) matched with fourth spout (114), make fourth support sliding part (161) follow fourth spout (114) slide.

7. The positioning jig of claim 1, wherein: the first movable clamping plate (13), the second movable clamping plate (14), the third movable clamping plate (15) and the fourth movable clamping plate (16) enclose to form a clamping space.

8. The positioning jig of claim 1, wherein: a control chip (10) is arranged in the bottom shell (1), and the control chip (10) is connected with the motor (2).