CN216098444U

CN216098444U - Hydraulic boosting type one-way clamping flat tongs

Info

Publication number: CN216098444U
Application number: CN202122908625.6U
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 a hydraulic reinforcement type one-way clamping flat tongs, which comprises a tongs body, wherein one side of the tongs body is fixedly connected with a fixed tong, and the other side of the tongs body is connected with a movable tong in a sliding manner; the internal sliding connection of pincers has the piston lead screw, and the movable clamp includes the sloping block with piston lead screw threaded connection, and one side cover that the piston lead screw is close to the stationary clamp is equipped with conical piston, and one side that the conical piston inner wall is close to the stationary clamp is the toper inclined plane, sets up the recess corresponding with the toper inclined plane on the piston lead screw, and the recess inner wall is the round platform shape inclined plane, is provided with first steel ball between toper inclined plane and the round platform shape inclined plane, fixedly connected with reinforcement pneumatic cylinder between conical piston and the pincers body. The hydraulic driving clamping device clamps a workpiece through hydraulic driving, and has the advantages of rapid clamping and high working efficiency; the clamping force is stable and reliable.

Description

Hydraulic boosting type one-way clamping flat tongs

Technical Field

The utility model relates to the technical field of flat tongs, in particular to a hydraulic boosting type one-way clamping flat tong.

Background

A flat-nose pliers, also known as a machine vice, is a universal fixture in the field of machining, is used for clamping workpieces to perform cutting machining, is a random accessory of a milling machine and a drilling machine, generally comprises a base, a nut, a pliers body, pliers jaws, a guide rail, a screw rod and other parts, and can clamp or disassemble the workpieces by rotating the screw rod to adjust the distance between the pliers jaws. When the traditional flat tongs are used, the workpiece is clamped by matching the lead screw and the nut, and in the process of machining the workpiece, the output clamping force of the lead screw is small, so that the workpiece is easy to loosen, and the machining of the workpiece is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hydraulic boosting type one-way clamping flat tongs to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following scheme:

the utility model provides a hydraulic reinforcement type one-way clamping flat tongs, which comprises a tongs body, wherein one side of the tongs body is fixedly connected with a fixed tong, and the other side of the tongs body is connected with a movable tong in a sliding manner; the improved pliers are characterized in that a piston lead screw is slidably connected inside the pliers body, the movable pliers comprise an inclined pressing block in threaded connection with the piston lead screw, a conical piston is sleeved on one side, close to the fixed pliers, of the piston lead screw, a conical inclined surface is arranged on one side, close to the fixed pliers, of the inner wall of the conical piston, a groove corresponding to the conical inclined surface is formed in the piston lead screw, the inner wall of the groove is a circular truncated cone-shaped inclined surface, a first steel ball is arranged between the conical inclined surface and the circular truncated cone-shaped inclined surface, and a boosting hydraulic cylinder is fixedly connected between the conical piston and the pliers body.

Preferably, a screw groove for accommodating the piston type screw is formed in the caliper body, the inclined pressing block comprises a sliding portion connected with the screw groove in a sliding mode and an extrusion portion extending out of the screw groove, and the sliding portion is in threaded connection with the piston type screw.

Preferably, the movable clamp body is sleeved on the outer side of the extrusion part, the extrusion part is fixedly connected with a cover plate through a set screw, and the cover plate is abutted to the movable clamp body.

Preferably, one side of the extrusion part, which is close to the fixed clamp, is fixedly provided with an extrusion bulge, the lower end of the side surface of the extrusion bulge is an inclined surface, and a second steel ball is arranged between the movable clamp body and the inclined surface.

Preferably, the opposite sides of the movable clamp body and the fixed clamp are fixedly connected with a clamp opening.

Preferably, one side of the piston type screw rod, which is far away from the fixed clamp, is connected with a positioning nail, the positioning nail is fixedly connected with the clamp body, and the positioning nail is connected with the piston type screw rod in a sliding manner; and one side of the piston type screw rod, which is close to the fixed clamp, is slidably connected with a supporting piece, and the supporting piece is fixedly connected with the clamp body.

Preferably, the outer side of the conical piston is slidably connected with a cylinder body, the cylinder body is slidably connected with a piston type lead screw, and the cylinder body is fixedly connected with a supporting piece.

Preferably, the boosting hydraulic cylinder is connected with a hydraulic control valve.

The utility model discloses the following technical effects: the utility model firstly controls the piston type lead screw to drive the movable clamp to move towards the direction of the fixed clamp, shortens the distance between the movable clamp and the fixed clamp, then drives the conical piston to extrude the piston type lead screw by controlling the boosting hydraulic cylinder to work, further realizes that the piston type lead screw is driven to drive the movable clamp to further clamp a workpiece, and ensures that the acting force acting on the piston type lead screw plays a role of multiplication due to the action of the conical inclined plane and the double conical surfaces of the circular truncated cone type inclined plane, and simultaneously, the first steel balls uniformly act on the piston type lead screw from the circumference, so that the integral rigidity of the piston type lead screw is further enhanced, and the acting force acting on the workpiece by the movable clamp is more stable and reliable. The hydraulic driving clamping device clamps a workpiece through hydraulic driving, and has the advantages of rapid clamping and high working efficiency; the clamping force is stable and reliable, the processing precision of the workpiece can be effectively ensured, and the quality stability is good; the clamping force is provided through hydraulic pressure, and automatic production can be achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed 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 creative efforts.

FIG. 1 is a schematic view of the flat-nose pliers of the present invention;

FIG. 2 is a schematic view of a conical piston according to the present invention;

FIG. 3 is a side view of flat-nose pliers of the present invention;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

fig. 5 is a partially enlarged view of B in fig. 4.

The hydraulic clamp comprises a clamp body 1, a screw groove 11, a positioning nail 12, a support 13, a fixed clamp 2, a movable clamp 3, an inclined pressing block 31, a sliding portion 311, an extrusion portion 312, an extrusion protrusion 313, an inclined surface 314, a movable clamp body 32, a set screw 33, a cover plate 34, a second steel ball 35, a jaw 36, a piston screw 4, a groove 41, a truncated cone-shaped inclined surface 42, a conical piston 51, a conical inclined surface 52, a first steel ball 53, a cylinder body 54, a boosting hydraulic cylinder 6 and a hydraulic control valve 7.

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.

Referring to fig. 1-5, the utility model provides a hydraulic reinforcement type one-way clamping flat tongs, which comprises a tongs body 1, wherein one side of the tongs body 1 is fixedly connected with a fixed tong 2, and the other side of the tongs body 1 is slidably connected with a movable tong 3; the internal sliding connection of pincers bodies 1 has piston lead screw 4, movable clamp 3 includes the briquetting 31 with 4 threaded connection of piston lead screw, piston lead screw 4 is close to one side cover of stationary tong 2 and is equipped with conical piston 51, one side that the conical piston 51 inner wall is close to stationary tong 2 is toper inclined plane 52, piston lead screw 4 is last to have seted up the recess 41 corresponding with toper inclined plane 52, recess 41 inner wall is round platform shape inclined plane 42, be provided with first steel ball 53 between toper inclined plane 52 and the round platform shape inclined plane 42, fixedly connected with reinforcement pneumatic cylinder 6 between conical piston 51 and the pincers bodies 1, through the motion of reinforcement pneumatic cylinder 6 drive conical piston 51, thereby drive first steel ball 53 extrusion piston lead screw 4, and then realize driving piston lead screw 4 lateral motion. The clamp body 1 is designed by adopting the high clamp body 1 with the height-width ratio larger than 0.5, so that the integral rigidity of the clamp body 1 is ensured, the integral deformation of the clamp body 1 is reduced, and the precision of the whole clamp is ensured.

In a further optimized scheme, a screw groove 11 for accommodating the piston type screw 4 is formed in the caliper body 1, the inclined pressing block 31 comprises a sliding portion 311 connected with the screw groove 11 in a sliding mode and an extrusion portion 312 extending out of the screw groove 11, the sliding portion 311 is in threaded connection with the piston type screw 4, the sliding portion 311 slides out of the screw groove 11, and therefore the inclined pressing block 31 is further limited to move transversely and cannot rotate.

Further optimize the scheme, the cover in the outside of extrusion portion 312 is equipped with the moving clamp body 32, and extrusion portion 312 is through holding screw 33 fixedly connected with apron 34, apron 34 and the butt of moving clamp body 32, and moving clamp body 32 arranges in the one side that is close to stationary plier 2 to guarantee that moving clamp body 32 and stationary plier 2 can press from both sides the work piece tightly.

According to the further optimized scheme, the extruding protrusion 313 is fixedly arranged on one side, close to the fixed clamp 2, of the extruding portion 312, the lower end of the side face of the extruding protrusion 313 is an inclined face 314, the second steel ball 35 is arranged between the movable clamp body 32 and the inclined face 314, when the workpiece is extruded by the inclined pressing block 31, the second steel ball 35 is extruded downwards by the extruding portion of the inclined pressing block 31, the movable clamp body 32 is extruded by the second steel ball 35, and therefore the movable clamp body 32 has a downward extruding trend, and when the workpiece is in operation, downward inclined pressure is generated on the workpiece, the workpiece is prevented from being clamped and floating upwards, the workpiece is ensured to be positioned reliably, and high-precision machining is achieved.

In a further optimized scheme, the opposite sides of the movable clamp body 32 and the fixed clamp 2 are fixedly connected with jaws 36, and a workpiece is clamped by the two jaws 36 arranged on the movable clamp body 32 and the fixed clamp 2 oppositely.

According to the further optimized scheme, one side, far away from the fixed clamp 2, of the piston type screw rod 4 is connected with a positioning nail 12, the positioning nail 12 is fixedly connected with the clamp body 1, and the positioning nail 12 is in sliding connection with the piston type screw rod 4; one side of the piston type lead screw 4 close to the fixed clamp 2 is connected with a supporting piece 13 in a sliding mode, the supporting piece 13 is fixedly connected with the clamp body 1, the positioning nail 12 limits the piston type lead screw 4 to move only along the axial direction of the lead screw groove 11, and meanwhile the supporting piece 13 and the sliding portion 311 are matched to ensure that the piston type lead screw 4 can only slide.

In a further optimized scheme, a cylinder 54 is slidably connected to the outer side of the conical piston 51, the cylinder 54 is slidably connected with the piston screw 4, the cylinder 54 is fixedly connected with the support 13, and the conical piston 51 in the cylinder 54 is limited so that the conical piston 51 can only move in the cylinder.

In a further optimized scheme, the boosting hydraulic cylinder 6 is connected with a hydraulic control valve 7, and the starting and the closing of the boosting hydraulic cylinder 6 are controlled through the hydraulic control valve 7.

The working process of the embodiment is as follows: firstly, the piston type screw rod 4 is controlled to rotate, so that the inclined pressing block 31 on the piston type screw rod 4 moves towards the fixed clamp 2, the distance between the fixed clamp 2 and the movable clamp 3 is gradually reduced, and when the distance between the fixed clamp 2 and the movable clamp is larger than the width of a workpiece but smaller than the sum of the width of the workpiece and the stroke of the boosting hydraulic cylinder 6, the piston type screw rod 4 stops moving; afterwards, the boosting hydraulic cylinder 6 is controlled to work to drive the conical piston 51 to move, so that the first steel ball 53 is driven to extrude the piston type lead screw 4, the piston type lead screw 4 is driven to move transversely, the piston type lead screw 4 drives the movable clamp 3 to further clamp a workpiece, when the workpiece is completely clamped, the movable clamp stops moving, due to the double conical surfaces of the conical inclined surface 52 and the circular truncated cone-shaped inclined surface 42, acting force acting on the piston type lead screw 4 plays a role of multiplication, meanwhile, the first steel ball 53 uniformly acts on the piston type lead screw 4 from the circumference, the integral rigidity of the piston type lead screw 4 is further enhanced, and acting force acting on the workpiece by the movable clamp 3 is more stable and reliable.

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 utility model provides a hydraulic pressure reinforcement formula one-way tight flat tongs that presss from both sides which characterized in that: the clamp comprises a clamp body (1), wherein one side of the clamp body (1) is fixedly connected with a fixed clamp (2), and the other side of the clamp body (1) is slidably connected with a movable clamp (3); the improved pliers are characterized in that a piston lead screw (4) is slidably connected to the interior of the pliers body (1), the movable pliers (3) comprises an inclined pressing block (31) in threaded connection with the piston lead screw (4), a conical piston (51) is sleeved on one side, close to the fixed pliers (2), of the piston lead screw (4), a conical inclined plane (52) is arranged on one side, close to the fixed pliers (2), of the inner wall of the conical piston (51), a groove (41) corresponding to the conical inclined plane (52) is formed in the piston lead screw (4), the inner wall of the groove (41) is a frustum-shaped inclined plane (42), a first steel ball (53) is arranged between the conical inclined plane (52) and the frustum-shaped inclined plane (42), and a boosting hydraulic cylinder (6) is fixedly connected between the conical piston (51) and the pliers body (1).

2. The hydraulically powered one-way clamping flat tongs according to claim 1, characterized in that: the clamp comprises a clamp body (1) and an inclined pressing block (31), wherein a lead screw groove (11) for accommodating a piston type lead screw (4) is formed in the clamp body (1), the inclined pressing block (31) comprises a sliding portion (311) in sliding connection with the lead screw groove (11) and an extrusion portion (312) extending out of the lead screw groove (11), and the sliding portion (311) is in threaded connection with the piston type lead screw (4).

3. The hydraulically powered one-way clamping flat tongs according to claim 2, characterized in that: the outer side of the extrusion part (312) is sleeved with a movable clamp body (32), the extrusion part (312) is fixedly connected with a cover plate (34) through a set screw (33), and the cover plate (34) is abutted to the movable clamp body (32).

4. The hydraulically powered one-way clamping flat tongs according to claim 3, characterized in that: one side of the extrusion part (312) close to the fixed clamp (2) is fixedly provided with an extrusion bulge (313), the lower end of the side surface of the extrusion bulge (313) is an inclined surface (314), and a second steel ball (35) is arranged between the movable clamp body (32) and the inclined surface (314).

5. The hydraulically powered one-way clamping flat tongs according to claim 3, characterized in that: one side of the movable clamp body (32) opposite to one side of the fixed clamp (2) is fixedly connected with a jaw (36).

6. The hydraulically powered one-way clamping flat tongs according to claim 5, characterized in that: one side, far away from the fixed clamp (2), of the piston type lead screw (4) is connected with a positioning nail (12), the positioning nail (12) is fixedly connected with the clamp body (1), and the positioning nail (12) is in sliding connection with the piston type lead screw (4); one side of the piston type screw rod (4) close to the fixed clamp (2) is connected with a supporting piece (13) in a sliding mode, and the supporting piece (13) is fixedly connected with the clamp body (1).

7. The hydraulically powered one-way clamping flat tongs according to claim 1, characterized in that: the outer side of the conical piston (51) is connected with a cylinder body (54) in a sliding mode, the cylinder body (54) is connected with the piston type lead screw (4) in a sliding mode, and the cylinder body (54) is fixedly connected with the supporting piece (13).

8. The hydraulically powered one-way clamping flat tongs according to claim 1, characterized in that: the boosting hydraulic cylinder (6) is connected with a hydraulic control valve (7).