CN219403288U

CN219403288U - Double-cylinder positioning clamp

Info

Publication number: CN219403288U
Application number: CN202320867568.8U
Authority: CN
Inventors: 王显锋
Original assignee: Wuhan Pinhao Precision Manufacturing Co ltd
Current assignee: Wuhan Pinhao Precision Manufacturing Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-07-25
Anticipated expiration: 2033-04-18

Abstract

The utility model relates to the technical field of machining, in particular to a double-cylinder positioning clamp which comprises a base, wherein a transverse moving seat and a transverse moving assembly connected with the transverse moving seat are arranged on the base; the transverse moving assembly is provided with a longitudinal moving seat and a longitudinal moving assembly connected with the longitudinal moving seat; the two groups of clamps and the double-cylinder driving mechanism connected with the two groups of clamps are arranged on the longitudinal moving seat, and the double-cylinder driving mechanism is used for driving the two groups of clamps to synchronously approach or separate. The two groups of clamps are respectively pushed to move by adopting the double-clamp cylinder, so that the two groups of clamps can be driven to provide two fixing points for a workpiece to be clamped, the stability of clamping the workpiece is ensured, and the machining precision is ensured.

Description

Double-cylinder positioning clamp

Technical Field

The utility model relates to the technical field of machining, in particular to a double-cylinder positioning clamp.

Background

In the machining process, a clamp is usually required to be matched to fix the workpiece on a machine tool so as to position and machine the workpiece and ensure the machining stability of the workpiece. The existing unidirectional clamp for the clamp used in the machining process can only clamp a workpiece in one direction, only one fixed point exists, and the clamping force acts in one direction, for example, a positioning clamp for an intelligent numerical control machine tool is disclosed in patent number CN 218746186U.

The unidirectional clamp is used for clamping and positioning the workpiece, and the unidirectional fixing mode is adopted, so that insufficient clamping force can cause relatively poor machining precision, and the stability and safety of grabbing the workpiece are also insufficient.

Disclosure of Invention

Aiming at the technical problems in the prior art, the utility model provides a double-cylinder positioning clamp for solving the problem that the machining precision is affected due to insufficient holding force by adopting a unidirectional fixing mode for the unidirectional clamp.

The technical scheme for solving the technical problems is as follows: the double-cylinder positioning clamp comprises a base, wherein a transverse moving seat and a transverse moving assembly connected with the transverse moving seat are arranged on the base; the transverse moving assembly is provided with a longitudinal moving seat and a longitudinal moving assembly connected with the longitudinal moving seat; the two groups of clamps and the double-cylinder driving mechanism connected with the two groups of clamps are arranged on the longitudinal moving seat, and the double-cylinder driving mechanism is used for driving the two groups of clamps to synchronously approach or separate.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the double-cylinder driving mechanism comprises two groups of clamp cylinders and two groups of cylinder driving parts; the two groups of clamp cylinders are relatively distributed on two sides of the two groups of clamps and are respectively connected with the two groups of clamps in a transmission way through the two groups of cylinder driving pieces.

Further, the cylinder transmission piece comprises a fixed part and a sliding block; the fixed part is provided with a chute which is in sliding fit with the sliding block.

Further, the section of the sliding block is I-shaped, and the sliding groove is I-shaped and matched with the sliding groove.

Further, the fixing part is also provided with a cylinder bracket connected with the clamp cylinder.

Further, the transverse moving assembly is formed by assembling an electric drive type screw guide rail and two groups of first linear slide rails.

Further, the longitudinal moving assembly is formed by assembling an air cylinder driving piece and two groups of second linear sliding rails.

Further, workpiece clamping grooves matched with workpieces to be processed are formed in opposite sides of the two groups of fixtures.

The beneficial effects of the utility model are as follows:

1) The two groups of clamps are respectively pushed to move by adopting the double-clamp cylinder, so that the two groups of clamps can be driven to provide two fixing points for a workpiece to be clamped, the stability of clamping the workpiece is ensured, and the machining precision is ensured.

2) The two groups of clamp cylinders drive the two groups of clamps to synchronously move, so that the workpiece can be rapidly clamped and fixed during processing, and the production efficiency and the yield are improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a side view of the present utility model;

FIG. 3 is a schematic view of a part of the structure of the clamp, the longitudinal moving assembly and the dual cylinder driving mechanism of the present utility model;

fig. 4 is an enlarged view of the utility model at a in fig. 3.

In the drawings, the list of components represented by the various numbers is as follows:

1. the base, 2, lateral shifting seat, 3, lateral shifting subassembly, 4, longitudinal shifting seat, 5, longitudinal shifting subassembly, 6, two cylinder actuating mechanism, 6.1, anchor clamps cylinder, 6.2, fixed part, 6.3, slider, 6.4, spout, 6.5, cylinder support, 7, anchor clamps.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

It should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, unless otherwise specifically indicated and defined. The specific meaning of such terms in this patent will be understood by those of ordinary skill in the art as the case may be.

It should be noted that the transverse direction and the longitudinal direction in this embodiment are two directions perpendicular to each other.

As shown in fig. 1 and fig. 2, the dual-cylinder positioning fixture of the present utility model comprises a base 1, wherein a lateral moving seat 2 and a lateral moving assembly 3 connected with the lateral moving seat 2 are arranged on the base 1, and the lateral moving seat 2 is driven by the lateral moving assembly 3 to move laterally so as to cooperate with a machine tool to machine the corresponding position of a workpiece; the transverse moving assembly 3 is provided with a longitudinal moving seat 4 and a longitudinal moving assembly 5 connected with the longitudinal moving seat 4, and the longitudinal moving seat 4 can control the longitudinal distance through the longitudinal moving assembly 5 so as to move a workpiece into or out of a corresponding processing position, thereby facilitating loading and unloading; the two groups of clamps 7 and the double-cylinder driving mechanism 6 connected with the two groups of clamps 7 are arranged on the longitudinal moving seat 4, the double-cylinder driving mechanism 6 is used for driving the two groups of clamps 7 to synchronously approach or separate, and the two groups of clamps 7 are driven in a bidirectional manner through the double-cylinder driving mechanism 6 so as to drive the two groups of clamps 7 to provide two fixing points for workpieces to be clamped, so that the stability of workpiece clamping is ensured, and the machining precision is ensured.

The utility model discloses a double cylinder positioning fixture can use with current machine tool cooperation, equipment such as milling machine, drilling machine, grinding machine and punch press, and double cylinder positioning fixture mainly provides stable centre gripping to the machined part, guarantees final machining effect.

As an embodiment, as shown in fig. 3 and 4, the double cylinder driving mechanism 6 includes two groups of clamp cylinders 6.1, and two groups of cylinder driving members; the two groups of clamp cylinders 6.1 are relatively distributed on two sides of the two groups of clamps 7 and are respectively connected with the two groups of clamps 7 in a transmission way through the two groups of cylinder transmission parts, and the two groups of clamps 7 are pushed to be close to or far away from under the action of the cylinder transmission parts through the two groups of clamp cylinders 6.1, so that the clamping or loosening of workpieces is completed. The two groups of clamp cylinders 6.1 are matched to clamp the workpiece in two directions simultaneously, so that two fixed points and two-way clamping force exist, the clamping force is stronger, and the clamping of a wide workpiece or a heavy workpiece can be met.

Specifically, the cylinder transmission piece comprises a fixed part 6.2, a sliding block 6.3, and a sliding block 6.3; the fixed part 6.2 is provided with a chute 6.4 which is in sliding fit with the sliding block 6.3, the fixed part 6.2 is fixed on the longitudinal moving seat 4, and the sliding block 6.4 limits the moving direction through the chute 6.4, so that the positioning precision of the clamp 7 is controlled.

Preferably, the section of the sliding block 6.3 is I-shaped, the sliding groove 6.4 is an I-shaped sliding groove matched with the sliding block, the matching area of the sliding block 6.3 and the sliding groove 6.4 is increased, sliding is stable, and dislocation and collapse are not easy to occur.

In addition, the fixing portion 6.2 is further provided with a cylinder bracket 6.5 connected to the clamp cylinder 6.1, and the clamp cylinder 6.1 is fixed to the longitudinal moving seat 4 by the cylinder bracket 6.5.

As an implementation mode, the transverse moving assembly 3 is formed by assembling an electric driving type screw guide rail and two groups of first linear slide rails, the electric driving type screw guide rail is used for providing driving force to control the transverse moving seat 2 to move along the first linear guide rail accurately, the electric driving type screw guide rail is high in accuracy, and the workpiece can be guaranteed to move accurately to be processed at the corresponding position of the workpiece by matching with a machine tool.

In addition, the longitudinal moving assembly 5 is assembled by an air cylinder driving piece and two groups of second linear sliding rails, and the air cylinder driving piece drives the longitudinal moving seat 4 to slide along the second linear sliding rails so as to enable a workpiece to quickly move in or out of a processing area of a corresponding machine tool, thereby facilitating loading and unloading and improving efficiency.

As an embodiment, the opposite sides of the two groups of clamps 7 are provided with workpiece clamping grooves matched with the workpiece to be processed, and the shape of the workpiece clamping grooves can be matched with the shape of the workpiece to be processed, such as rectangular grooves, arc grooves and the like, and are adaptively adjusted according to the processing requirements of the workpiece.

The working principle of the utility model is as follows:

first, the workpiece to be processed is placed in the workpiece clamping grooves corresponding to the two groups of clamps, and the clamps 7 are controlled to clamp through the double-cylinder driving mechanism 6.

Then, the longitudinal moving assembly 5 drives the longitudinal moving seat 4 to longitudinally move so as to quickly move the workpiece into or out of the processing area of the corresponding machine tool, and the workpiece is fed.

And then, carrying out corresponding machining operation on the fixed workpiece through a machine tool, and controlling the transverse position of the workpiece under the cooperation of the transverse moving assembly 3 so as to machine the corresponding position of the workpiece by the machine tool.

Finally, after the machining is finished, the machined workpiece is moved out through the longitudinal moving assembly 5, the control clamp 7 loosens the workpiece, and the workpiece is taken out.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. The double-cylinder positioning clamp is characterized by comprising a base (1), wherein the base (1) is provided with a transverse moving seat (2) and a transverse moving assembly (3) connected with the transverse moving seat (2); the transverse moving assembly (3) is provided with a longitudinal moving seat (4) and a longitudinal moving assembly (5) connected with the longitudinal moving seat (4); two groups of clamps (7) and a double-cylinder driving mechanism (6) connected with the two groups of clamps (7) are arranged on the longitudinal moving seat (4), and the double-cylinder driving mechanism (6) is used for driving the two groups of clamps (7) to synchronously approach or separate.

2. A twin-cylinder positioning jig according to claim 1, characterized in that the twin-cylinder drive mechanism (6) comprises two sets of jig cylinders (6.1), and two sets of cylinder drives; the two groups of clamp cylinders (6.1) are relatively distributed on two sides of the two groups of clamps (7) and are respectively connected with the two groups of clamps (7) in a transmission way through two groups of cylinder transmission parts.

3. A double cylinder positioning jig according to claim 2, characterized in that the cylinder transmission comprises a fixed part (6.2) and a slider (6.3); a chute (6.4) which is in sliding fit with the sliding block (6.3) is arranged on the fixing part (6.2).

4. A double cylinder positioning clamp according to claim 3, characterized in that the section of the sliding block (6.3) is in an I shape, and the sliding groove (6.4) is in an I shape matched with the sliding groove.

5. A double cylinder positioning jig according to claim 3, characterized in that the fixing portion (6.2) is further provided with a cylinder bracket (6.5) connected to the jig cylinder (6.1).

6. The double-cylinder positioning clamp according to claim 1, wherein the transverse moving assembly (3) is formed by assembling an electrically driven screw guide rail and two groups of first linear guide rails.

7. A double cylinder positioning clamp according to claim 1, characterized in that the longitudinal movement assembly (5) is assembled from a cylinder drive and two sets of second linear slides.

8. Double cylinder positioning clamp according to any of claims 1-7, characterized in that the opposite sides of both sets of clamps (7) are provided with workpiece clamping grooves adapted to the workpiece to be machined.