CN217890246U

CN217890246U - Positioning fixture for precision part machining

Info

Publication number: CN217890246U
Application number: CN202221790975.5U
Authority: CN
Inventors: 施连华; 颜红波; 郭建龙
Original assignee: Suzhou Xinhengrui Precision Technology Co ltd
Current assignee: Suzhou Xinhengrui Precision Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-11-25
Anticipated expiration: 2032-07-14

Abstract

The utility model discloses a positioning fixture for precision parts machining, the on-line screen storage device comprises a base, the inside recess that has seted up of base, the inside drive arrangement that is equipped with of recess, drive arrangement has two, drive arrangement's top is connected with the supporting shoe, two one side fixedly connected with connecting block that the supporting shoe is close to mutually, the connecting block surface is equipped with the anchor clamps subassembly, relates to anchor clamps technical field, and the advantage compared with prior art is through setting up the anchor clamps subassembly, utilizes the rotation of second threaded rod to drive second threaded sleeve at second threaded rod surface back-and-forth movement, and second threaded sleeve's back-and-forth movement drives the back-and-forth movement of slider, and the back-and-forth movement of slider drives the back-and-forth movement of fixed block, and the back-and-forth movement of fixed block drives the back-and-forth movement of pivot to utilize two rotating pins to press from both sides the part tightly.

Description

Positioning fixture for precision part machining

Technical Field

The utility model relates to an anchor clamps technical field specifically is a positioning fixture for precision parts machining.

Background

The jig is a device for fixing a processing object to a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig.

The special fixture is often needed when the precision parts are machined, and the fixture with the corresponding clamping groove is designed according to the appearance of the part, so that different fixtures need to be manufactured when different parts are machined, the production cost is very high, and the fixture is extremely inconvenient to replace.

Therefore, a positioning clamp for machining precision parts is provided.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above and/or other problems occurring in the conventional positioning jig for precision part machining.

Therefore, the utility model discloses a set up anchor clamps subassembly at the connecting block, utilize the rotation of second threaded rod to drive the back-and-forth movement of slider, the back-and-forth movement of slider drives the back-and-forth movement of fixed block, the back-and-forth movement of fixed block drives the back-and-forth movement of pivot, thereby the pivot is removed and is driven the rotational pin back-and-forth movement and utilize two rotational pins to press from both sides the part tight fixedly to it is with high costs when the different anchor clamps of preparation that propose among the above-mentioned background art to solve, changes inconvenient problem.

A positioning fixture for machining precision parts comprises a base, wherein a groove is formed in the base, a driving device is arranged in the groove, the number of the driving devices is two, supporting blocks are connected to the top ends of the driving devices, a connecting block is fixedly connected to one side, close to the two supporting blocks, of the two supporting blocks, and a fixture assembly is arranged on the surface of the connecting block;

as a preferred scheme of the positioning fixture for precision part machining of the utility model, the driving device comprises a motor, the motor is fixedly connected to one side surface of the base, the inner walls of the two sides of the groove are connected with bearings, the inner wall of each bearing is connected with a bidirectional threaded rod, the two ends of the bidirectional threaded rod are rotatably connected with the base through the bearings, and the output shaft of the motor passes through the base and is fixedly connected with one end of the bidirectional threaded rod;

as a preferred scheme of the positioning fixture for machining precision parts of the utility model, a supporting block is arranged on the surface of the bidirectional threaded rod, a first threaded sleeve is arranged inside the supporting block, and the bidirectional threaded rod passes through the inner wall of the first threaded sleeve for threaded connection;

as a preferred scheme of the positioning fixture for machining precision parts of the present invention, a through hole is formed on one side of the supporting block, which is located on the first threaded sleeve, a connecting rod is slidably connected in the through hole, and two ends of the connecting rod are fixedly connected with the base;

as a preferred scheme of the positioning clamp for machining the precision parts, the clamp assembly comprises a second threaded rod, a sliding groove is formed in the surface of the connecting block, and the second threaded rod is rotatably connected with the connecting block through a bearing;

as a preferred scheme of the positioning fixture for precision part machining of the utility model, a slider is arranged on the surface of the second threaded rod, a second threaded sleeve is arranged inside the slider, the second threaded rod is in threaded connection with the inner wall of the second threaded sleeve, a limiting rod is connected inside the slider in a sliding manner through a through hole, and two ends of the limiting rod are fixedly connected with a connecting block;

as a preferred scheme of the positioning fixture for precision part machining of the present invention, the upper surface of the connecting block is fixedly connected with two fixing blocks, a rotating shaft is rotatably connected between the two fixing blocks through a bearing, the surface of the rotating shaft is fixedly connected with a rotating pin, the upper surface of the connecting block is provided with a receiving groove, and the front end of the connecting block is fixedly connected with a concave block;

as the utility model discloses a precision positioning fixture for parts machining's an preferred scheme, wherein the spacing groove has been seted up to the inside of connecting block, and spacing inslot portion sliding connection has the tray, and the tray is located the last fixed surface of the one end of spacing inslot portion and is connected with the stopper.

Compared with the prior art, the method has the advantages that:

1. through the arrangement of the clamp assembly, the second threaded sleeve is driven to move back and forth on the surface of the second threaded rod by the rotation of the second threaded rod, the sliding block is driven to move back and forth by the back and forth movement of the second threaded sleeve, the fixed block is driven to move back and forth by the back and forth movement of the sliding block, the rotating shaft is driven to move back and forth by the back and forth movement of the fixed block, and the rotating pin is driven to move back and forth by the back and forth movement of the rotating shaft, so that the part is clamped by the two rotating pins;

2. through setting up drive arrangement, the output shaft that utilizes the motor rotates and drives two-way threaded rod and rotate, and two-way threaded rod rotates and makes first threaded sleeve move at two-way threaded rod surface back-and-forth, and first threaded sleeve back-and-forth movement drives the supporting shoe back-and-forth movement, and the supporting shoe back-and-forth movement drives the connecting block back-and-forth movement, and the connecting block back-and-forth movement drives the concave block back-and-forth movement to utilize two concave blocks to fix the part.

Drawings

FIG. 1 is a schematic structural view of a positioning jig for machining precision parts;

FIG. 2 is a top view of a positioning jig for precision part machining;

FIG. 3 is a top view of a positioning fixture clamp assembly for precision part machining;

FIG. 4 is a top cross-sectional view of a precision part machining positioning fixture clamp assembly;

fig. 5 is a schematic structural view of a positioning jig driving device for precision part machining.

In the figure: the device comprises a base 1, a groove 11, a motor 21, a bearing 22, a bidirectional threaded rod 23, a first threaded sleeve 24, a connecting rod 25, a through hole 26, a supporting block 3, a connecting block 4, a sliding block 51, a second threaded rod 52, a limiting rod 53, a rotating pin 54, a rotating shaft 55, a containing groove 56, a concave block 57, a fixed block 58, a second threaded sleeve 59, a limiting groove 61, a supporting block 62 and a limiting block 63.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a positioning fixture is used in precision parts machining, as figure 1, fig. 2, fig. 3, fig. 4 and fig. 5 are shown, including base 1, base 1 is inside to be seted up recess 11, the inside drive arrangement that is equipped with of recess 11, drive arrangement has two, drive arrangement's top is connected with supporting shoe 3, one side fixedly connected with connecting block 4 that two supporting shoes 3 are close to mutually, connecting block 4 surface is equipped with the anchor clamps subassembly, base 1 provides the support for the device, recess 11 is used for setting up drive arrangement, drive arrangement is used for making 3 back-and-forth movements of supporting shoe, supporting shoe 3 is used for connecting block 4 and provides the support for connecting block 4, connecting block 4 is used for setting up anchor clamps subassembly and spacing groove 61.

The driving device comprises a motor 21, the motor 21 is fixedly connected to one side surface of the base 1, bearings 22 are connected to the inner walls of the two sides of the groove 11, a bidirectional threaded rod 23 is connected to the inner wall of the bearing 22, the two ends of the bidirectional threaded rod 23 are rotatably connected with the base 1 through the bearings 22, an output shaft of the motor 21 penetrates through the base 1 and is fixedly connected with one end of the bidirectional threaded rod 23, a supporting block 3 is arranged on the surface of the bidirectional threaded rod 23, a first threaded sleeve 24 is arranged inside the supporting block 3, the bidirectional threaded rod 23 penetrates through the inner wall of the first threaded sleeve 24 and is in threaded connection, a through hole 26 is formed in one side, located on the first threaded sleeve 24, of the supporting block 3, the connecting rod 25 is connected in the through hole 26 in a sliding mode, two ends of the connecting rod 25 are fixedly connected with the base 1, the motor 21 is used for providing power for the driving device, the output shaft of the motor 21 rotates to drive the two-way threaded rod 23 to rotate, the two-way threaded rod 23 rotates to enable the first threaded sleeve 24 to move back and forth on the surface of the two-way threaded rod 23, the first threaded sleeve 24 moves back and forth to drive the supporting block 3 to move back and forth, the supporting block 3 moves back and forth to drive the connecting block 4 to move back and forth, the connecting block 4 moves back and forth to drive the clamp assembly to move back and forth, and the connecting rod 25 and the through hole 26 are used for limiting the supporting block 3 and enabling the supporting block 3 to move back and forth on the surface of the connecting rod 25.

The clamp assembly comprises a second threaded rod 52, a sliding groove is formed in the surface of the connecting block 4, the second threaded rod 52 is rotatably connected with the connecting block 4 through a bearing 22, a sliding block 51 is arranged on the surface of the second threaded rod 52, a second threaded sleeve 59 is arranged inside the sliding block 51, the inner wall of the second threaded rod 52 is in threaded connection with the inner wall of the second threaded sleeve 59, a limiting rod 53 is slidably connected inside the sliding block 51 through a through hole 26, two ends of the limiting rod 53 are fixedly connected with the connecting block 4, two fixing blocks 58 are fixedly connected to the upper surface of the connecting block 4, a rotating shaft 55 is rotatably connected between the two fixing blocks 58 through the bearing 22, a rotating pin 54 is fixedly connected to the surface of the rotating shaft 55, an accommodating groove 56 is formed in the upper surface of the connecting block, a concave block 57 is fixedly connected to the front end of the connecting block 4, and the second threaded rod 52 is used for enabling the sliding block 51 to slide on the surface of the second threaded rod 52, the limiting rod 53 is used for limiting the second threaded rod 52, the fixing block 58 is used for being connected with the rotating shaft 55, the rotating shaft 55 is used for being connected with the rotating pin 54, the rotating pin 54 can rotate, the rotating pins 54 of the two clamp assemblies are used for clamping parts, the second threaded sleeve 59 is driven to move back and forth on the surface of the second threaded rod 52 by rotation of the second threaded rod 52, the second threaded sleeve 59 moves back and forth to drive the sliding block 51 to move back and forth, the sliding block 51 moves back and forth to drive the fixing block 58 to move back and forth, the rotating shaft 55 moves back and forth to drive the rotating pin 54 to move back and forth, so that the parts are clamped by the two rotating pins 54, the two concave blocks 57 are used for positioning and fixing the parts, and the accommodating groove 56 is used for accommodating the rotating pin when the rotating pin is not used.

Limiting groove 61 has been seted up to the inside of connecting block 4, and limiting groove 61 inside sliding connection has tray 62, and tray 62 is located the last fixed surface of the inside one end of limiting groove 61 and is connected with stopper 63, and limiting groove 61 is used for setting up tray 62, and tray 62 is used for providing the support for the part, avoids the part to drop, and stopper 63 is used for spacing the slip of tray 62, and just, tray 62 drops from limiting groove 61 inside.

The working principle is as follows: when the part fixing device is used specifically, the motor 21 is connected with an external power supply and a controller, the motor 21 is turned on, the output shaft of the motor 21 rotates to drive the bidirectional threaded rod 23 to rotate, the bidirectional threaded rod 23 rotates to enable the first threaded sleeve 24 to move back and forth on the surface of the bidirectional threaded rod 23, the first threaded sleeve 24 moves back and forth to drive the supporting block 3 to move back and forth, the supporting block 3 moves back and forth to drive the connecting block 4 to move back and forth, the connecting block 4 moves back and forth to drive the concave block 57 to move back and forth, and therefore the part is fixed by the two concave blocks 57.

And then the second threaded rod 52 is controlled, the second threaded sleeve 59 is driven to move back and forth on the surface of the second threaded rod 52 by the rotation of the second threaded rod 52, the slider 51 is driven to move back and forth by the back and forth movement of the second threaded sleeve 59, the fixing block 58 is driven to move back and forth by the back and forth movement of the fixing block 58, the rotating pin 54 is driven to move back and forth by the back and forth movement of the rotating shaft 55, so that the part is further clamped and fixed by the two rotating pins 54, the support block 62 is used for supporting the part to prevent the part from falling off, and the limit block 63 prevents the support block 62 from falling off from the inside of the limit groove 61.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a precision parts machining uses positioning fixture, includes base (1), its characterized in that, base (1) is inside seted up recess (11), the inside drive arrangement that is equipped with of recess (11), drive arrangement has two, drive arrangement's top is connected with supporting shoe (3), two one side fixedly connected with connecting block (4) that supporting shoe (3) are close to mutually, connecting block (4) surface is equipped with the anchor clamps subassembly.

2. The positioning fixture for machining precision parts as claimed in claim 1, wherein the driving device comprises a motor (21), the motor (21) is fixedly connected to one side surface of the base (1), bearings (22) are connected to inner walls of two sides of the groove (11), a bidirectional threaded rod (23) is connected to an inner wall of each bearing (22), two ends of the bidirectional threaded rod (23) are rotatably connected to the base (1) through the bearings (22), and an output shaft of the motor (21) penetrates through the base (1) and is fixedly connected to one end of the bidirectional threaded rod (23).

3. The positioning fixture for machining precision parts as claimed in claim 2, wherein the surface of the bidirectional threaded rod (23) is provided with a support block (3), a first threaded sleeve (24) is arranged inside the support block (3), and the bidirectional threaded rod (23) is connected through the inner wall of the first threaded sleeve (24) in a threaded manner.

4. The positioning fixture for machining the precision parts as claimed in claim 3, wherein a through hole (26) is formed in one side, located on the first threaded sleeve (24), of the supporting block (3), a connecting rod (25) is connected in the through hole (26) in a sliding manner, and two ends of the connecting rod (25) are fixedly connected with the base (1).

5. The positioning fixture for machining the precision parts as claimed in claim 4, wherein the fixture assembly comprises a second threaded rod (52), a sliding groove is formed in the surface of the connecting block (4), and the second threaded rod (52) is rotatably connected with the connecting block (4) through a bearing (22).

6. The positioning fixture for machining the precision parts according to claim 5, wherein a sliding block (51) is arranged on the surface of the second threaded rod (52), a second threaded sleeve (59) is arranged inside the sliding block (51), the second threaded rod (52) is in threaded connection with the inner wall of the second threaded sleeve (59), a limiting rod (53) is connected inside the sliding block (51) in a sliding mode through a through hole (26), and two ends of the limiting rod (53) are fixedly connected with the connecting block (4).

7. The positioning fixture for machining the precision parts as claimed in claim 6, wherein two fixing blocks (58) are fixedly connected to the upper surface of the connecting block (4), a rotating shaft (55) is rotatably connected between the two fixing blocks (58) through a bearing (22), a rotating pin (54) is fixedly connected to the surface of the rotating shaft (55), a containing groove (56) is formed in the upper surface of the connecting block, and a concave block (57) is fixedly connected to the front end of the connecting block (4).

8. The positioning fixture for machining the precision parts according to claim 1, wherein a limiting groove (61) is formed in the connecting block (4), a supporting block (62) is slidably connected in the limiting groove (61), and a limiting block (63) is fixedly connected to the upper surface of one end, located in the limiting groove (61), of the supporting block (62).