CN215789358U

CN215789358U - Positioning fixture

Info

Publication number: CN215789358U
Application number: CN202121989585.6U
Authority: CN
Inventors: 赵善东
Original assignee: Zhongshan Huahong Precision Mould Machinery Co ltd
Current assignee: Zhongshan Huahong Precision Mould Machinery Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-02-11
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a positioning fixture, which comprises a supporting base, wherein the left end and the right end of the supporting base are respectively connected with a clamping part through locking screws, a spring is pressed between each clamping part and the supporting base, the top end of each clamping part is higher than the top end of the supporting base, one side of the top end of each clamping part, which is close to the supporting base, is provided with a clamping boss protruding towards the supporting base, a workpiece is clamped between the clamping boss at the left side and the clamping boss at the right side, the clamping bosses are provided with a plurality of notches arranged in the front-back direction, a plurality of tooth bodies are arranged between every two adjacent notches, and the tail ends of the plurality of tooth bodies are provided with straight edges used for contacting with the workpiece.

Description

Positioning fixture

Technical Field

The utility model relates to a positioning clamp, and relates to the field of machining.

Background

The clamp is used for fixing a machined workpiece in the mechanical manufacturing process, so that the workpiece is fixed at a designated position to facilitate construction or detection, and the existing clamp capable of firmly clamping the left end and the right end of the workpiece is easy to have the phenomena of workpiece vibration and displacement and clamp looseness during workpiece machining, so that the machining precision of the workpiece is influenced, and the problem of poor stability exists.

Therefore, how to overcome the above-mentioned drawbacks has become an important issue to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the defects of the technology, provides a positioning clamp, and adopts the following technical scheme to realize the purpose:

the utility model provides a positioning fixture, including supporting base 1, the left end and the right-hand member that support base 1 are connected with clamping part 3, every through locking screw 2 respectively clamping part 3 and support and all the roof pressure have spring 4 between the

base

1, 3 top heights of clamping part are higher than support 1 top height of base, 3 tops of clamping part are close to support one side of base 1 be equipped with to support the convex centre gripping boss 5 of base 1 direction, be used for centre gripping work piece 6 between the centre gripping boss 5 on left centre gripping boss 5 and the right side, be equipped with a plurality of breach 51 of tandem on the centre gripping boss 5, adjacent two be equipped with a plurality of denticles 52 between the breach 51, the end of this a plurality of denticles 52 all be equipped with be used for with the straight flange 53 of work piece 6 contact.

Two installing through holes 31 that distribute around being equipped with on clamping part 3, be equipped with two base connection screw holes 11 that correspond with two installing through holes 31 on the lateral wall of support base 1, locking screw 2 warp installing through hole 31 with base connection screw hole 11 is connected, towards support base 1 lateral wall 3 side of clamping part is the concave spring mounting groove 32 that is equipped with on the side, the spring 4 roof pressure is in between spring mounting groove 32 and the support base 1 lateral wall.

Locking screw 2 is kept away from the one end of supporting base 1 is equipped with and is convenient for rotate locking screw 2's screw head 21, the screw head 21 is gone up the concave hexagon socket head groove 22 that is equipped with.

Two the bottom of hold assembly 3 all is equipped with toward support base 1 middle part direction horizontal bellied spacing lug 33, support the lateral wall of base 1 go up the concave confession that is equipped with spacing protruding position corresponds spacing lug 33 inserts spacing slot 12 wherein, spacing slot 12 is equipped with from interior toward the first inclined plane 121 that upwards extends gradually outward, be equipped with on the spacing lug 33 with the second inclined plane 331 that first inclined plane 121 position corresponds.

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

1. the positioning fixture of the scheme has simple and easy realization, the support base is arranged to support the workpiece, the left end and the right end of the support base are respectively connected with the arrangement of the clamping part through the locking screw rod so as not to obstruct the workpiece to be placed on the upper end surface of the support base, the clamping part and the support base are combined to be pressed with the arrangement of the spring, thus, when the locking screw rod at the corresponding side is screwed down, the elastic force of the corresponding spring can be overcome to drive the clamping part at the corresponding side to press the side wall of the workpiece tightly, the operation is convenient, the loosening is not easy, when the locking screw rod is screwed down, the clamping part is far away from the side wall of the workpiece under the action of the spring so as to loosen the workpiece, the operation is convenient, the top end of the clamping part is provided with the arrangement of the clamping boss so that the clamping boss can also clamp the workpiece with a width smaller than the left width and the right width of the support base, the clamp has the advantages that the universality of the clamp is improved, the practicability is good, the arrangement of the tooth body and the arrangement of the straight edges on the tooth body are applicable to the condition that the side wall of the workpiece is uneven, and under the action of the same clamping force, the pressure between the clamping boss and the side face of the workpiece is increased, so that the workpiece is not easy to displace, and the practicability is good.

2. The two mounting through holes and the two corresponding base connecting screw holes are arranged in a front-back distribution mode, so that clamping force on the left side and the right side of the clamping component is more even when the clamping component clamps the workpiece, clamping of the workpiece is firmer and more stable, the spring mounting groove is arranged so as to prevent the spring from interfering with the locking screw, and the spring is prevented from being easily damaged when the locking screw is rotated.

3. Locking screw keeps away from the one end of supporting the base is equipped with and is convenient for rotate locking screw's screw rod head, the overhead concave interior hexagonal recess that is equipped with of screw rod to can use interior hexagonal spanner to anchor clamps on locking screw carry out to screw up fast or unscrew, use manpower sparingly, improve work efficiency, the practicality is good.

4. The setting of the spacing lug of present case, spacing slot is convenient for support the base lateral wall with towards support the base lateral wall form the strong point between the hold assembly side, be convenient for strengthen the hold assembly centre gripping the stability of work piece, the practicality is good, the setting on first inclined plane, second inclined plane is convenient for increase the cooperation degree between spacing lug, the spacing slot makes the hold assembly is difficult for rocking, further strengthens the hold assembly centre gripping the stability of work piece, the practicality is good.

Drawings

Fig. 1 is a structural view of a positioning jig.

Fig. 2 is one of the structural views of the positioning jig.

Fig. 3 is a second structural view of the positioning jig.

Fig. 4 is a sectional view of the positioning jig.

Fig. 5 is an exploded view of the positioning fixture.

Detailed Description

The features of the present invention and other related features are further described in detail below by way of examples to facilitate understanding by those skilled in the art:

as shown in fig. 1 to 5, a positioning fixture includes a supporting base 1, a clamping component 3 is connected to a left end and a right end of the supporting base 1 through locking screws 2, a spring 4 is pressed between each clamping component 3 and the supporting base 1, a top end of each clamping component 3 is higher than a top end of the supporting base 1, a clamping boss 5 protruding towards the supporting base 1 is arranged on one side of the top end of each clamping component 3 close to the supporting base 1, a workpiece 6 is clamped between the clamping boss 5 on the left side and the clamping boss 5 on the right side, a plurality of notches 51 arranged in a front-back manner are arranged on each clamping boss 5, a plurality of teeth 52 are arranged between every two adjacent notches 51, and straight edges 53 used for contacting with the workpiece 6 are arranged at ends of the plurality of teeth 52.

As mentioned above, the positioning fixture of the present disclosure is simple and easy to implement, the supporting base 1 is arranged to support the workpiece 6, the left end and the right end of the supporting base 1 are respectively connected with the clamping components 3 through the locking screws 2 so as not to obstruct the workpiece 6 from being placed on the upper end surface of the supporting base 1, and the positioning fixture is combined with the arrangement of the springs 4 pressed between the clamping components 3 and the supporting base 1, so that when the locking screws 2 on the corresponding side are tightened, the clamping components 3 on the corresponding side can be driven to press the side walls of the workpiece 6 against the corresponding clamping components 3 against the elastic force of the corresponding springs 4, which is convenient to operate and not easy to loosen, and when the locking screws 2 are loosened, the clamping components 3 are far away from the side walls of the workpiece 6 under the action of the springs 4 so as to loosen the workpiece 6, which is convenient to operate, the top end of the clamping components 3 is provided with the arrangement of the clamping bosses 5, the clamping boss 5 can clamp workpieces smaller than the left width and the right width of the supporting base 1, the clamp is high in universality and good in practicability, the arrangement of the tooth body 52 and the arrangement of the straight edge 53 on the tooth body 52 can be suitable for the condition that the side wall of the workpiece 6 is uneven, and under the action of the same clamping force, the pressure between the clamping boss 5 and the side face of the workpiece 6 is increased, so that the workpiece 6 is not prone to displacement, and the clamp is good in practicability.

As shown in fig. 4 and 5, in specific implementation, two installation through holes 31 are formed in the clamping member 3, the two base connection screw holes 11 corresponding to the two installation through holes 31 are formed in the side wall of the supporting base 1, the locking screw 2 is connected with the base connection screw holes 11 through the installation through holes 31, a spring installation groove 32 is concavely formed in the side surface of the clamping member 3 facing the side wall of the supporting base 1, and the spring 4 is pressed between the spring installation groove 32 and the side wall of the supporting base 1.

As described above, the two mounting through holes 31 and the two corresponding base connecting screw holes 11 are respectively arranged in a front-back distribution manner, so that the clamping force on the left side and the clamping force on the right side of the workpiece 6 are more even when the clamping component 3 clamps the workpiece 6, and the clamping of the workpiece 6 is firmer and more stable, and the spring mounting groove 32 is arranged so as to prevent the spring 4 from interfering with the locking screw 2, and to prevent the spring 4 from being easily damaged when the locking screw 2 is rotated.

As shown in fig. 1 and 5, during the concrete implementation, locking screw 2 is kept away from the one end of supporting base 1 is equipped with and is convenient for rotate locking screw 2's screw head 21, screw head 21 is the concave hexagon socket head 22 that is equipped with to can use hexagon socket head cap wrench to anchor clamps on locking screw 2 screw up fast or unscrew, use manpower sparingly, improve work efficiency, the practicality is good.

As shown in fig. 2, fig. 3, and fig. 5, in specific implementation, the bottom ends of the two clamping members 3 are respectively provided with a limiting protrusion 33 protruding transversely toward the middle of the supporting base 1, the side wall of the supporting base 1 is concavely provided with a limiting slot 12 corresponding to the position of the limiting protrusion for inserting the limiting protrusion 33 therein, the limiting slot 12 is provided with a first inclined surface 121 extending gradually upward from inside to outside, and the limiting protrusion 33 is provided with a second inclined surface 331 corresponding to the position of the first inclined surface 121.

As described above, the arrangement of the limiting convex block 33 and the limiting slot 12 facilitates the formation of a supporting point between the side wall of the supporting base 1 and the side surface of the clamping component 3 facing the side wall of the supporting base 1, facilitates the enhancement of the clamping component 3 to the workpiece 6, and has good practicability, and the arrangement of the first inclined surface 121 and the second inclined surface 331 facilitates the increase of the matching degree between the limiting convex block 33 and the limiting slot 12, so that the clamping component 3 is not easy to shake, further enhances the stability of the clamping component 3 for clamping the workpiece 6, and has good practicability.

As mentioned above, the present disclosure is directed to a positioning fixture, and all technical solutions that are the same as or similar to the present disclosure should be considered as falling within the scope of the present disclosure.

Claims

1. A positioning fixture is characterized by comprising a supporting base (1), wherein the left end and the right end of the supporting base (1) are respectively connected with clamping parts (3) through locking screws (2), a spring (4) is respectively pressed between each clamping part (3) and the supporting base (1), the top end of the clamping component (3) is higher than the top end of the supporting base (1), one side of the top end of the clamping component (3) close to the supporting base (1) is provided with a clamping boss (5) protruding towards the supporting base (1), a workpiece (6) is clamped between the clamping boss (5) at the left side and the clamping boss (5) at the right side, a plurality of notches (51) which are arranged in the front-back direction are arranged on the clamping boss (5), a plurality of tooth bodies (52) are arranged between every two adjacent notches (51), the tips of the plurality of teeth (52) are provided with straight edges (53) for contacting the workpiece (6).

2. The positioning fixture according to claim 1, wherein the clamping member (3) is provided with two mounting holes (31) distributed in a front-back direction, the side wall of the supporting base (1) is provided with two base connecting screw holes (11) corresponding to the two mounting holes (31), the locking screw (2) is connected with the base connecting screw holes (11) through the mounting holes (31), the side surface of the clamping member (3) facing the side wall of the supporting base (1) is concavely provided with a spring mounting groove (32), and the spring (4) is pressed between the spring mounting groove (32) and the side wall of the supporting base (1).

3. A positioning fixture according to claim 2, characterized in that the end of the locking screw (2) far away from the supporting base (1) is provided with a screw head (21) for rotating the locking screw (2), and the screw head (21) is provided with a hexagonal socket (22) in a concave manner.

4. The positioning fixture according to claim 1, wherein the bottom ends of the two clamping members (3) are respectively provided with a limiting protrusion (33) protruding transversely toward the middle of the supporting base (1), the side wall of the supporting base (1) is concavely provided with a limiting slot (12) corresponding to the position of the limiting protrusion (33) and allowing the limiting protrusion (33) to be inserted therein, the limiting slot (12) is provided with a first inclined surface (121) extending gradually upward from inside to outside, and the limiting protrusion (33) is provided with a second inclined surface (331) corresponding to the position of the first inclined surface (121).