CN216098443U

CN216098443U - Adjustable self-centering precise flat tongs

Info

Publication number: CN216098443U
Application number: CN202122908651.9U
Authority: CN
Inventors: 侯会杰
Original assignee: Hebei Haote Machinery Parts Processing Co ltd
Current assignee: Hebei Haote Machinery Parts Processing Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-03-22
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses adjustable self-centering precise flat tongs, which comprise tongs, wherein a driving part is arranged in the tongs, a clamping part is arranged at the top end of the tongs, and the driving part is in transmission connection with the clamping part; one end of the clamp body is fixedly connected with an adjusting front baffle, the other end of the clamp body is fixedly connected with a rear baffle, the driving part comprises a screw rod arranged in the clamp body, one end of the screw rod penetrates through the adjusting front baffle and extends out of the clamp body, the other end of the screw rod is positioned in the rear baffle, the screw rod is rotatably connected with the adjusting front baffle and the rear baffle, and the clamping part is in transmission connection with the screw rod; be provided with the adjusting part who is used for accommodate the lead screw position in the pincers body, adjusting part includes extruded article and elastic component, and the extruded article is located the baffle before adjusting, and the elastic component is located the backplate. The flat tongs provided by the utility model are not easy to deform when in use, the machining precision of the flat tongs is improved, the central position of a clamped workpiece can be adjusted, and the machining precision of the workpiece is further improved.

Description

Adjustable self-centering precise flat tongs

Technical Field

The utility model relates to the technical field of machine manufacturing, in particular to adjustable self-centering precise flat tongs.

Background

In the traditional production process, the traditional flat tongs are used, the height-width ratio of the tongs body is less than 0.5, the whole rigidity of the flat tongs is small, the flat tongs are easy to deform during use, the machining precision is affected, and the flat tongs can not be applied to high-precision machining. When the conventional flat tongs are used, the center position of a clamping workpiece cannot be precisely adjusted, so that the center is misaligned, and the accuracy of workpiece processing is further affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable self-centering precise flat tongs, which solves the problems in the prior art, can realize that the flat tongs are not easy to deform when in use, improves the processing precision, can adjust the central position of a clamping workpiece, and further improves the processing precision of the workpiece.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides adjustable self-centering precise flat tongs, which comprise tongs, wherein a driving part is arranged in the tongs, a clamping part is arranged at the top end of the tongs, and the driving part is in transmission connection with the clamping part;

one end of the clamp body is fixedly connected with a front adjusting baffle, the other end of the clamp body is fixedly connected with a rear baffle, the driving part comprises a screw rod arranged in the clamp body, one end of the screw rod penetrates through the front adjusting baffle and extends out of the clamp body, the other end of the screw rod is positioned in the rear baffle, the screw rod is rotatably connected with the front adjusting baffle and the rear baffle, and the clamping part is in transmission connection with the screw rod;

the internal adjusting part that is used for adjusting of pincers, adjusting part includes extruded article and elastic component, the extruded article is located in adjusting the front bezel, the elastic component is located in the backplate.

Preferably, a through groove is formed in the top end of the clamp body, the through groove is arranged corresponding to the screw rod, the clamping portion comprises two movable clamp bodies oppositely arranged on the top end of the clamp body, the movable clamp bodies are slidably connected with the top end of the clamp body, the movable clamp bodies extend into the clamp body through the through groove, the movable clamp bodies are sleeved on the screw rod, and the movable clamp bodies are in threaded connection with the screw rod.

Preferably, the extruded article is established including the cover regulation retaining ring and holding ring on the lead screw, it is located to adjust the retaining ring the holding ring is kept away from one side of backplate, adjust the retaining ring lateral wall with baffle threaded connection before adjusting, adjust the retaining ring inside wall with the lead screw rotates to be connected, the holding ring with the lead screw rigid coupling, adjust the retaining ring with the holding ring is kept away from one side butt of backplate.

Preferably, the elastic part comprises a compression spring arranged in the rear baffle, the compression spring is positioned between the rear baffle and the screw rod, one end of the compression spring is fixedly connected with the rear baffle, one end of the screw rod close to the rear baffle is positioned in the compression spring, and the screw rod is fixedly connected with the compression spring.

Preferably, the cover is equipped with thrust bearing on the lead screw, thrust bearing is located adjust the retaining ring with between the holding ring, thrust bearing respectively with adjust preceding baffle with lead screw sliding connection, thrust bearing is close to one side of holding ring with the holding ring butt, thrust bearing keeps away from one side of holding ring with adjust preceding baffle butt.

Preferably, the screw rod is sleeved with two bearing retainer rings, the positioning ring is positioned between the two bearing retainer rings, the two bearing retainer rings are fixedly connected with the positioning ring, and the bearing retainer rings close to the thrust bearing are abutted to the thrust bearing.

Preferably, the rigid coupling has first spacing bearing in the baffle before adjusting, first spacing bearing is located the holding ring is kept away from one side of baffle before adjusting, lead screw one end is passed first spacing bearing, just the lead screw with first spacing bearing rotates to be connected, the backplate internal rotation is connected with the spacing bearing of second, the spacing bearing of second is located compression spring with between the lead screw, just the lead screw with the spacing bearing of second rotates to be connected.

Preferably, a plurality of sockets are formed in one side, far away from the positioning ring, of the adjusting retainer ring, and the sockets are convenient for rotation of the adjusting retainer ring.

The utility model discloses the following technical effects:

1. the adjustable self-centering precise flat tongs provided by the utility model have small deformation in use and can meet the requirement of high-precision machining.

2. Through setting up adjusting part, when carrying out the centre gripping, through the cooperation of extruded article and elastic component, accommodate the lead screw position, and then adjust the central point of clamping part and put, the central point that the purpose was adjusted the work piece puts, guarantees the accuracy that clamping part central point put.

3. When the central point that needs adjusted the clamping part puts, the regulation of extruded piece is convenient, and the practicality is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a schematic structural view of an adjustable self-centering precision flat tongs;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a top view of an adjustable self-centering precision flat-nose pliers;

the hydraulic clamp comprises a clamp body 1, a front adjusting baffle 2, a rear adjusting baffle 3, a screw rod 4, a through groove 5, a movable clamp body 6, an adjusting retainer 7, a positioning ring 8, a compression spring 9, a thrust bearing 10, a bearing retainer 11, a first limit bearing 12, a second limit bearing 13, a socket 14, a jaw 15, a pressure block 16 and a steel ball 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The utility model provides adjustable self-centering precise flat tongs, which comprise tongs 1, wherein a driving part is arranged in the tongs 1, a clamping part is arranged at the top end of the tongs 1, and the driving part is in transmission connection with the clamping part; one end of the clamp body 1 is fixedly connected with an adjusting front baffle 2, the other end of the clamp body 1 is fixedly connected with a rear baffle 3, the driving part comprises a screw rod 4 arranged in the clamp body 1, one end of the screw rod 4 penetrates through the adjusting front baffle 2 and extends out of the clamp body 1, the other end of the screw rod 4 is positioned in the rear baffle 3, the screw rod 4 is rotatably connected with the adjusting front baffle 2 and the rear baffle 3, and the clamping part is in transmission connection with the screw rod 4; be provided with the adjusting part who is used for accommodate the 4 positions of lead screw in the pincers body 1, adjusting part includes extruded article and elastic component, and the extruded article is located and adjusts in the preceding baffle 2, and the elastic component is located backplate 3.

When needing to press from both sides tightly, clockwise rotation lead screw 4, lead screw 4 rotates and drives the drive division and remove to the realization is to the centre gripping of work piece, when needs loosen, anticlockwise rotation lead screw 4, lead screw 4 rotates and drives the centre gripping of clamping part cancellation to the centre gripping of work piece.

When pressing from both sides tight work piece, because the work piece is put at the central point and is had the error, at this moment through rotating the extruded article, extruded article and elastic component cooperation for lead screw 4 takes place the displacement, and then drives the work piece of clamping part centre gripping and takes place the displacement, thereby adjusts the central point of work piece and puts, its easy operation, and the practicality is high.

Further optimization scheme, logical groove 5 has been seted up on pincers body 1 top, leads to groove 5 and lead screw 4 and corresponds the setting, and the clamping part includes two relative settings at the movable clamp body 6 on pincers body 1 top, and

movable clamp body

6 and 1 top sliding connection of pincers body, and movable clamp body 6 stretches into pincers body 1 through leading to groove 5 in, and the cover of movable clamp body 6 is established on lead screw 4, and movable clamp body 6 and lead screw 4 threaded connection. The two movable clamp bodies 6 are arranged at the top end of the clamp body 1, and when the screw rod 4 is rotated, the two movable clamp bodies 6 can be close to or away from each other, so that the effect of clamping or loosening a workpiece is achieved.

In the technical scheme, one side of any movable clamp body 6, which is close to the other movable clamp body 6, is fixedly connected with a jaw 15, an inclined pressing block 16 and a steel ball 17 are arranged in the movable clamp body 6, the steel ball 17 is positioned between the jaw 15 and the inclined pressing block 16, the steel ball 17 is embedded on the movable clamp body 6, the inclined pressing block 16 is sleeved on the screw rod 4, the inclined pressing block 16 is in threaded connection with the screw rod 4, and one side of the inclined pressing block 16, which is close to the steel ball 17, is abutted to the steel ball 17. The presence of the jaws 15 facilitates gripping of the workpiece. Because the sloping block 16 cover is established on the lead screw 4, and because the existence of logical groove 5, when the lead screw 4 rotates, two sloping blocks 16 are close to each other or keep away from each other, when keeping away from each other, sloping block 16 and the movable clamp body 6 contact, drive two movable clamp bodies 6 and keep away from each other, when being close to each other, sloping block 16 extrudes steel ball 17 and promotes two movable clamp bodies 6 and be close to each other, at this in-process, because sloping block 16 extrudes steel ball 17, make steel ball 17 provide a decurrent pressure for movable clamp body 6, and then make movable clamp body 6 provide a decurrent pressure for the work piece, prevent that the work piece from pressing from both sides tight come-up, guarantee the location of work piece is reliable, and then improve the machining precision.

In the present embodiment, the screw threads on the two ramp blocks 16 should have opposite directions, so as to realize the approaching or separating of the ramp blocks 16.

Further optimize the scheme, the extruded article is established regulation retaining ring 7 and holding ring 8 on lead screw 4 including the cover, and regulation retaining ring 7 is located holding ring 8 and keeps away from one side of backplate 3, adjusts 2 threaded connection of baffle before 7 lateral walls of retaining ring and the regulation, and 7 inside walls of regulation retaining ring rotate with lead screw 4 to be connected, holding

ring

8 and 4 rigid couplings of lead screw, and one side butt that backplate 3 was kept away from to regulation retaining ring 7 and holding ring 8. When the central position of work piece was adjusted to needs, rotatory regulation retaining ring 7, because adjust retaining ring 7 and adjust preceding baffle 2 threaded connection, consequently adjust retaining ring 7 and produce the displacement, adjust retaining ring 7 extrusion holding ring 8 for holding ring 8 drives lead screw 4 and produces the displacement, and then adjusts the central position of work piece, reduces central position error.

In this technical scheme, baffle 2 is provided with the screw (not shown in the figure) outward before adjusting, and the screw bottom passes baffle 2 before adjusting and with adjust retaining ring 7 lateral wall butt. After the workpiece is adjusted to meet the precision requirement, the position of the adjusting check ring 7 is further fixed by rotating the screw, so that the adjusting check ring 7 is reinforced and is not easy to move, and further the workpiece is not easy to move.

Further optimize the scheme, the elastic component is including setting up compression spring 9 in backplate 3, and compression spring 9 is located between backplate 3 and lead screw 4, and compression spring 9's one end and backplate 3 rigid coupling, lead screw 4 are close to the one end of backplate 3 and are located compression spring 9, and lead screw 4 and compression spring 9 rigid coupling. Compression spring 9 and regulation retaining ring 7 cooperation, when adjusting retaining ring 7 to being close to 3 direction movements of backplate, adjust retaining ring 7 extrusion holding ring 8, compression spring 9 compresses for lead screw 4 removes to the direction of backplate 3, when adjusting retaining ring 7 and removing to the direction of keeping away from backplate 3, compression spring 9 resets, and lead screw 4 removes to the direction of adjusting preceding baffle 2, and then realizes the regulation of lead screw 4 left and right sides position.

Further optimize the scheme, the cover is equipped with thrust bearing 10 on the lead screw 4, and thrust bearing 10 is located between adjusting retaining ring 7 and holding ring 8, thrust bearing 10 respectively with adjust preceding baffle 2 and lead screw 4 sliding connection, thrust bearing 10 is close to one side and the holding ring 8 butt of holding ring 8, thrust bearing 10 keep away from one side of holding ring 8 and adjust preceding baffle 2 butt. The existence of the thrust bearing 10 facilitates the adjusting retainer ring 7 to push the positioning ring 8, so as to drive the screw rod 4 to move.

Further optimize the scheme, the cover is equipped with two retaining rings 11 on the lead screw 4, and holding ring 8 is located between two retaining rings 11, and two retaining rings 11 and holding ring 8 rigid coupling, and retaining ring 11 and thrust bearing 10 butt that are close to thrust bearing 10. The purpose of the retainer ring 11 is to protect the thrust bearing 10 from damage caused by the thrust bearing 10 directly contacting the retaining ring 8.

According to the further optimization scheme, a first limit bearing 12 is fixedly connected in the front adjusting baffle plate 2, the first limit bearing 12 is located on one side, away from the front adjusting baffle plate 2, of the positioning ring 8, one end of the screw rod 4 penetrates through the first limit bearing 12, the screw rod 4 is rotatably connected with the first limit bearing 12, a second limit bearing 13 is rotatably connected in the rear baffle plate 3, the second limit bearing 13 is located between the compression spring 9 and the screw rod 4, and the screw rod 4 is rotatably connected with the second limit bearing 13. Under the effect of first limit bearing 12 and second limit bearing 13, carry on spacingly to lead screw 4 for lead screw 4 can rotate, and just first limit bearing 12 can avoid holding ring 8 to leave the baffle before adjusting, and then reduces the possibility that clamping device damaged.

According to the further optimized scheme, one side, far away from the positioning ring 8, of the adjusting retainer ring 7 is provided with a plurality of inserting openings 14, and the plurality of inserting openings 14 facilitate rotation of the adjusting retainer ring 7. The socket 14 is used for inserting a workpiece such as a handle and the like so as to conveniently rotate the adjusting check ring 7 and further conveniently adjust the position of the screw rod 4.

The working principle is as follows:

when needs press from both sides tightly, clockwise rotation lead screw 4, lead screw 4 rotates and drives two moving tong bodies 6 and be close to each other to the realization is to the centre gripping of work piece, when needs loosen, anticlockwise rotation lead screw 4, lead screw 4 rotates and drives two lead screws 4 and keep away from each other, thereby cancels the centre gripping to the work piece.

When clamping the work piece, because the work piece has the error in central point to put, at this moment through rotating regulation retaining ring 7, when adjusting retaining ring 7 and moving to the direction that is close to backplate 3, adjust retaining ring 7 extrusion holding ring 8 for lead screw 4 moves to the direction of backplate 3, when adjusting retaining ring 7 and moving to the direction of keeping away from backplate 3, under compression spring 9's effect, lead screw 4 moves to the direction of adjusting preceding baffle 2, realize the regulation to lead screw 4 position, thereby realize the regulation to work piece central point.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The adjustable self-centering precise flat tongs are characterized by comprising tongs bodies (1), wherein driving parts are arranged in the tongs bodies (1), clamping parts are arranged at the top ends of the tongs bodies (1), and the driving parts are in transmission connection with the clamping parts;

one end of the clamp body (1) is fixedly connected with an adjusting front baffle (2), the other end of the clamp body (1) is fixedly connected with a rear baffle (3), the driving part comprises a screw rod (4) arranged in the clamp body (1), one end of the screw rod (4) penetrates through the adjusting front baffle (2) and extends out of the clamp body (1), the other end of the screw rod (4) is positioned in the rear baffle (3), the screw rod (4) is rotatably connected with the adjusting front baffle (2) and the rear baffle (3), and the clamping part is in transmission connection with the screw rod (4);

be provided with in pincers body (1) and be used for adjusting the adjusting part of lead screw (4) position, adjusting part includes extruded article and elastic component, the extruded article is located baffle (2) before the regulation, the elastic component is located in backplate (3).

2. The adjustable self-centering precision flat tongs according to claim 1, characterized in that: the improved clamp is characterized in that a through groove (5) is formed in the top end of the clamp body (1), the through groove (5) and the screw rod (4) are correspondingly arranged, the clamping part comprises two movable clamp bodies (6) which are oppositely arranged on the top end of the clamp body (1), the movable clamp bodies (6) are slidably connected with the top end of the clamp body (1), the movable clamp bodies (6) extend into the clamp body (1) through the through groove (5), the movable clamp bodies (6) are sleeved on the screw rod (4), and the movable clamp bodies (6) are in threaded connection with the screw rod (4).

3. The adjustable self-centering precision flat tongs according to claim 1, characterized in that: the extruded article is established including the cover regulation retaining ring (7) and holding ring (8) on lead screw (4), it is located to adjust retaining ring (7) holding ring (8) are kept away from one side of backplate (3), adjust retaining ring (7) lateral wall with baffle (2) threaded connection before adjusting, adjust retaining ring (7) inside wall with lead screw (4) rotate to be connected, holding ring (8) with lead screw (4) rigid coupling, adjust retaining ring (7) with holding ring (8) are kept away from one side butt of backplate (3).

4. The adjustable self-centering precision flat tongs according to claim 3, characterized in that: the elastic part is in including setting up compression spring (9) in backplate (3), compression spring (9) are located backplate (3) with between lead screw (4), the one end of compression spring (9) with backplate (3) rigid coupling, lead screw (4) are close to the one end of backplate (3) is located in compression spring (9), just lead screw (4) with compression spring (9) rigid coupling.

5. The adjustable self-centering precision flat tongs according to claim 3, characterized in that: the cover is equipped with thrust bearing (10) on lead screw (4), thrust bearing (10) are located adjust retaining ring (7) with between holding ring (8), thrust bearing (10) respectively with before adjusting baffle (2) with lead screw (4) sliding connection, thrust bearing (10) are close to one side of holding ring (8) with holding ring (8) butt, thrust bearing (10) are kept away from one side of holding ring (8) with before adjusting baffle (2) butt.

6. The adjustable self-centering precision flat tongs according to claim 5, characterized in that: the screw rod (4) is sleeved with two bearing retainer rings (11), the positioning ring (8) is positioned between the two bearing retainer rings (11) and is fixedly connected with the positioning ring (8) and close to the thrust bearing (10), and the bearing retainer rings (11) are abutted against the thrust bearing (10).

7. The adjustable self-centering precision flat tongs according to claim 4, characterized in that: the utility model discloses a lead screw, including baffle (2) before the regulation rigid coupling have first spacing bearing (12), first spacing bearing (12) are located holding ring (8) are kept away from one side of baffle (2) before the regulation, lead screw (4) one end is passed first spacing bearing (12), just lead screw (4) with first spacing bearing (12) rotate to be connected, backplate (3) internal rotation is connected with second spacing bearing (13), second spacing bearing (13) are located compression spring (9) with between lead screw (4), just lead screw (4) with second spacing bearing (13) rotate to be connected.

8. The adjustable self-centering precision flat tongs according to claim 3, characterized in that: a plurality of sockets (14) are formed in one side, far away from the positioning ring (8), of the adjusting retainer ring (7), and the sockets (14) are convenient for rotation of the adjusting retainer ring (7).