CN116441581A - Correction-free clamp for processing square workpiece - Google Patents

Abstract

The application discloses a correction-free clamp for processing square workpieces, which relates to the technical field of clamps and comprises a clamp bottom plate; a fixed cylinder seat fixed on the clamp bottom plate; the fixed clamping block is connected to the fixed oil cylinder seat, and the fixed oil cylinder seat can drive the fixed clamping block to move up and down; the movable oil cylinder seat is arranged on the clamp bottom plate in a sliding manner; the movable clamping block is connected to the movable oil cylinder seat, and the movable oil cylinder seat can drive the movable clamping block to move up and down; the movable oil cylinder seat is connected with the movable oil cylinder seat so as to drive the driving mechanism for moving the movable oil cylinder seat.

Description

A correction-free fixture for processing square workpieces

technical field

The application relates to the technical field of fixtures, in particular to a correction-free fixture for processing square workpieces.

Background technique

When processing square parts, a four-jaw chuck is required for clamping. In the prior art, when using a four-jaw chuck to clamp a workpiece, it is necessary to correct the four-jaw chuck to improve the accuracy of the clamping position. However, there is a problem of great difficulty in calibration.

Therefore, it is necessary to design a correction-free fixture.

Contents of the invention

In view of this, the present application provides a correction-free jig for processing square workpieces to solve the above technical problems.

To achieve the above object, the present invention provides the following technical solutions:

A correction-free fixture for processing square workpieces, comprising:

Fixture bottom plate;

a fixed oil cylinder seat fixed on the bottom plate of the fixture;

a fixed clamping block connected to the fixed oil cylinder base, the fixed oil cylinder base can drive the fixed clamping block to move up and down;

Slidingly set the movable cylinder seat on the bottom plate of the fixture;

A movable clamping block connected to the movable cylinder base, the movable cylinder base can drive the movable clamping block to move up and down;

A driving mechanism that is connected with the movable cylinder base to drive the movable cylinder base to move.

Further, the right end of the clamp bottom plate is installed with a dust-proof fixed rear plate, and the right end of the driving mechanism is connected to the dust-proof fixed rear plate.

Furthermore, the drive mechanism includes:

a lead screw connected between the fixture bottom plate and the dust-proof fixed rear plate;

a lead screw nut threadedly connected to the lead screw;

A link block connected between the lead screw nut and the movable cylinder seat.

Further, anti-lifting blocks are installed on the front and rear sides of the movable cylinder seat.

Furthermore, at least one locking oil cylinder is provided in the movable oil cylinder seat, and the lower end of the locking oil cylinder is connected with a locking block that can be locked in the guide groove of the clamp bottom plate.

Furthermore, a movable guide rail is provided in each of the guide grooves, and at least one linear guide rail block is provided on the bottom of the movable cylinder seat to slide and fit with the corresponding movable guide rail.

Further, several fixed seat oil cylinder piston rods are arranged in the fixed oil cylinder seat, and the upper ends of several fixed seat oil cylinder piston rods are all connected to the fixed clamping block.

Further, several movable seat cylinder ejector rods are arranged in the movable cylinder seat, and the upper ends of several movable seat cylinder ejector rods are all connected with the movable clamping block.

Further, limit blocks are installed at the front and rear ends of the fixed clamping block.

Further, the sides of the fixed clamping block and the movable clamping block that are close to each other are provided with a clamping groove for clamping a square workpiece, and the upper end of the clamping groove is provided with the top of the workpiece. Restricted extension blocks.

From above-mentioned technical scheme as can be seen, advantage of the present invention is:

1. In this application, the driving mechanism drives the movable cylinder base to move to the fixed cylinder base, so that the square workpiece can be clamped between the fixed clamping block and the movable clamping block, and square workpieces of various sizes can be clamped. It is not only simple in structure, but also has good clamping effect.

2. In this application, the piston rod of the fixed seat cylinder can drive the fixed clamping block to move upward, and the ejector rod of the movable seat cylinder can drive the movable clamping block to move upward, thereby completing the quick replacement of the fixed clamping block and the movable clamping block.

Description of drawings

The drawings constituting a part of the application are used to provide further understanding of the application, and the schematic embodiments and descriptions of the application are used to explain the application, and do not constitute an improper limitation to the application.

Figure 1 is a schematic diagram of the three-dimensional structure of the present application.

FIG. 2 is a schematic diagram of another three-dimensional structure of the present application.

Figure 3 is a top view of the present application.

Fig. 4 is a bottom view of the present application after removing the bottom plate of the fixture.

FIG. 5 is a partial enlarged view of A in FIG. 1 .

FIG. 6 is a schematic structural diagram of an embodiment of FIG. 3 .

FIG. 7 is a schematic diagram of a partial structure of the present application.

List of reference signs: fixture bottom plate 1, guide groove 11, movable guide rail 111, accommodation groove 12, hole 13, dustproof fixed back plate 14, limit part 15, fixed cylinder seat 2, first protective cover 21, first installation Hole 22, fixed seat oil cylinder piston rod 23, fixed clamping block 3, limit block 31, first support platform 32, first connecting slope 33, second support platform 34, first circular hole 341, movable oil cylinder seat 4, The second protective cover 41, the limiting part 411, the anti-lifting block 42, the limiting groove 421, the second mounting hole 43, the movable seat cylinder ejector rod 44, the linear guide block 45, the locking cylinder 46, the locking block 461, the movable Clamping block 5, clamping groove 51, extension block 52, third supporting platform 53, second connecting slope 54, fourth supporting platform 55, second round hole 551, driving mechanism 6, lead screw 61, bearing seat 611, Lead screw nut 62, link block 63.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the implementation manners and accompanying drawings. Here, the exemplary embodiments of the present application and their descriptions are used to explain the present application, but not to limit the present application.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The connection may be a direct connection or an indirect connection.

In addition, the terms "first" and "second" are only used to distinguish in description, and have no special meaning.

Referring to Figures 1 to 7, as shown in Figure 1, this embodiment provides a correction-free fixture for processing square workpieces, including: a fixture base plate 1, a fixed cylinder seat 2, a fixed clamping block 3, a movable cylinder seat 4, and a movable clamp Holding block 5 and driving mechanism 6, the fixed cylinder base 2 is fixed on the clamp bottom plate 1; the fixed clamping block 3 is connected on the fixed cylinder base 2, and the fixed cylinder base 2 can drive the The fixed clamping block 3 moves up and down, so as to quickly replace the fixed clamping block 3; the movable cylinder base 4 is slidably arranged on the clamp bottom plate 1; the movable clamping block 5 is connected to the movable cylinder base 4 , the movable cylinder block 4 can drive the movable clamping block 5 to move up and down, so as to quickly replace the movable clamping block 5, the fixed clamping block 3 and the movable clamping block 5 are used together, and they need to be replaced together when replacing, through Replacement of the fixed clamping block 3 and the movable clamping block 5 can be used for clamping workpieces of different thicknesses; the drive mechanism 6 is connected with the movable cylinder base 4 to drive the movable cylinder base 4 to move left and right, through The movable cylinder base 4 moves left and right, so that the distance between the movable clamping block 5 and the fixed clamping block 3 can be adjusted freely, so that the movable clamping block 5 and the fixed clamping block 3 can clamp square workpieces of different lengths. Support, so that the scope of use is wider.

As shown in FIG. 1 , FIG. 2 and FIG. 4 , the right end of the fixture bottom plate 1 is provided with a dust-proof fixed rear plate 14 , and the right end of the driving mechanism 6 is connected to the dust-proof fixed rear plate 14 .

Preferably, in the embodiment of the present application, the dustproof fixed rear plate 14 is installed on the right end of the fixture bottom plate 1 by several screws, and the fixture bottom plate 1 and the dustproof fixed rear plate 14 are perpendicular to each other.

As shown in FIGS. 1 and 4 , the driving mechanism 6 includes: a lead screw 61 , a lead screw nut 62 and a link block 63 , and the lead screw 61 is connected between the fixture bottom plate 1 and the clamp base 61 through a pair of bearing seats 611 . The dustproof is fixed between the rear plates 14; the screw nut 62 is threadedly connected with the screw 61; the link block 63 is connected between the screw nut 62 and the movable cylinder base 4.

Preferably, in some embodiments, a pair of bearing seats 611 are installed on the clamp bottom plate 1 and the dustproof fixed rear plate 14 respectively.

Preferably, in the embodiment of the present application, a bearing is provided in the bearing housing 611, and the screw 61 is connected with the bearing.

As shown in FIG. 4 and FIG. 6 , anti-lifting blocks 42 are installed on the front and rear sides of the movable cylinder block 4 .

As shown in Figure 7, the side of the anti-lift block 42 is provided with a limit groove 421, and the bottom of the limit groove 421 is in contact with the bottom of the limit portion 15 provided on the side of the fixture bottom plate 1. By setting the anti-lift block 42, the movable oil cylinder can be prevented. During the movement of the seat 4, dust falls between the movable cylinder seat 4 and the fixture bottom plate 1, causing the problem that the reference planes of the movable cylinder seat 4 and the fixed clamping block 3 are inconsistent, thereby making the processing more precise.

As shown in Figure 4, at least one locking oil cylinder 46 is arranged in the movable oil cylinder seat 4, and the lower end of the locking oil cylinder 46 is connected with a locking block 461, and the locking oil cylinder 46 is activated, so that the locking block 461 moves upward. , the locking block 461 is stuck in the guide groove 11 of the fixture bottom plate 1, thereby realizing the locking of the movable cylinder block 4, and by locking the movable oil cylinder block 4, the fixing of the movable clamping block 5 can be realized, so that the fixed clamping block 3 and the movable clamping block 5 clamp the workpiece more firmly, thereby processing more precisely.

In the embodiment of the present application, two second installation holes 43 are opened in the movable cylinder seat 4 , and the two locking cylinders 46 are both arranged in the corresponding second installation holes 43 .

In the embodiment of the present application, two guide grooves 11 and one accommodation groove 12 are provided on the bottom plate of the fixture.

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a movable guide rail 111 is provided in each of the guide grooves 11, and at least one linear guide rail block 45 is provided at the bottom of the movable cylinder seat 4, and the linear The guide rail block 45 is slidingly matched with the corresponding movable guide rail 111 , and the movable cylinder block 4 is moved more stably through the sliding fit of the linear guide rail block 45 and the movable guide rail 111 .

As shown in Figure 3, several fixed seat oil cylinder piston rods 23 are arranged in the fixed oil cylinder seat 2, and the upper ends of several described fixed seat oil cylinder piston rods 23 are all opposed to the fixed clamping block 3. The right side of the fixed oil cylinder block 2 is provided with a first protective cover 21, and the right end of the first protective cover 21 is connected to the left side of the movable oil cylinder block 4, and the part between the fixed oil cylinder block 2 and the movable oil cylinder block 4 can be protected.

The right side of the movable cylinder seat 4 is provided with a second protective cover 41, and the second protective cover 41 is slidingly fitted with the clamp bottom plate 1. A pair of limiting parts 411 are provided at the lower end of the second protective cover 41. The restricting portion 411 is clamped on both sides of the clamp bottom plate 1 .

Preferably, in the embodiment of the present application, the right end of the second protective cover 41 is connected to the dustproof fixed rear plate 14 for protecting the part between the movable cylinder base 4 and the dustproof fixed rear plate 14 .

Preferably, in some embodiments, both the first protective cover 21 and the second protective cover 41 are organ-type protective covers.

In the embodiment of the present application, the piston rod 23 of the fixed seat oil cylinder and the ejector rod 44 of the movable seat oil cylinder are connected to the corresponding oil cylinders, and four first mounting holes 22 are provided on the fixed seat oil cylinder seat 2 to connect with the piston rod 23 of the fixed seat oil cylinder. The oil cylinder is arranged in the corresponding first installation hole 22, and the oil cylinder connected with the movable seat cylinder ejector rod 44 is arranged in the corresponding second installation hole 43.

As shown in Fig. 2 and Fig. 3, several movable seat oil cylinder ejector rods 44 are arranged in the movable oil cylinder seat 4, and the upper ends of several movable seat oil cylinder ejector rods 44 are all connected with the movable clamping block 5 , the movable clamping block 5 is ejected through the movable seat oil cylinder ejector rod 44, and the movable clamping block 5 can be quickly replaced.

As shown in Fig. 1 and Fig. 2, the front and rear ends of the fixed clamping block 3 are all equipped with limit blocks 31, and the limit blocks 31 can limit the front and rear sides of the square workpiece, thereby improving the stability when loading the square workpiece. Accuracy and reliability, making it easier and faster to install square workpieces.

As shown in FIG. 5 , the sides of the fixed clamping block 3 and the movable clamping block 5 that are close to each other are provided with clamping grooves 51 , and the workpiece can be clamped between a pair of clamping grooves 51 . The upper end of the clamping groove 51 is provided with an extension block 52 to limit the top of the workpiece. The extension block 52 can limit the upper surface of the square workpiece, thereby further improving the convenience and accuracy of loading.

As shown in Fig. 1 and Fig. 5, there is a first support platform 32 extending to the right on the fixed clamping block 3, the right end of the first support platform 32 is connected with a first connecting inclined surface 33, and the lower end of the first connecting inclined surface 33 is connected with a The second support platform 34 has a third support platform 53 extending to the left on the movable clamping block 5, the left end of the third support platform 53 is connected with a second connecting slope 54, and the lower end of the second connecting slope 54 is connected with a fourth support Table 55, for smaller square workpieces, its bottom can be constrained on the first support platform 32 and the third support platform 53, the top is limited by a pair of extension blocks 52, for large square workpieces, its bottom can be limited on the second supporting platform 34 and the fourth supporting platform 55 .

Preferably, in the embodiment of the present application, several first round holes 341 are opened on the second support platform 34 along the front-to-back direction, and several second round holes 551 are opened on the fourth support platform 55 along the front-to-back direction.

Preferably, in the embodiment of the present application, the clamping groove 51 of the movable clamping block 5 is located between the extension block 52 of the movable clamping block 5 and the third support platform 53, and the clamping groove 51 of the fixed clamping block 3 is located between the fixed Between the extension block 52 of the clamping block 3 and the first supporting platform 32 .

As shown in FIG. 6 , in order to reduce the cost and improve the convenience of use, the lead screw 61 is driven and rotated by the hand wheel 64 so that the clamping force can be adjusted according to the length of the square workpiece.

Preferably, in some embodiments, several holes 13 are opened on the fixture bottom plate 1, so as to install the application on the equipment.

Working principle: Place the square workpiece on the first support table 32, the front and rear sides of the square workpiece are limited by a pair of limit blocks 31, and the hand wheel 64 is turned to make the screw 61 rotate, thereby passing the screw nut 62 Drive the link block 63 to move to the left, so the movable cylinder block 4 drives the movable clamping block 5 to move to the left, and then cooperates with the fixed clamping block 3 through the movable clamping block 5, so that the square workpiece is firmly clamped in the movable clamping Between the block 5 and the fixed clamping block 3.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, various modifications and changes may be made to the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (10)

1. A correction-free fixture for processing a square workpiece, comprising:

a clamp base plate (1);

a fixed cylinder seat (2) fixed on the clamp bottom plate (1);

the fixed clamping block (3) is connected to the fixed oil cylinder seat (2), and the fixed oil cylinder seat (2) can drive the fixed clamping block (3) to move up and down;

a movable oil cylinder seat (4) arranged on the clamp bottom plate (1) in a sliding manner;

the movable clamping block (5) is connected to the movable oil cylinder seat (4), and the movable oil cylinder seat (4) can drive the movable clamping block (5) to move up and down;

and the driving mechanism (6) is connected with the movable oil cylinder seat (4) to drive the movable oil cylinder seat (4) to move.

2. The correction-free clamp for processing square workpieces according to claim 1, wherein a dustproof fixed rear plate (14) is mounted at the right end of the clamp base plate (1), and the right end of the driving mechanism (6) is connected to the dustproof fixed rear plate (14).

3. Correction-free clamp for processing square workpieces according to claim 2, characterized in that the drive mechanism (6) comprises:

a screw (61) connected between the jig base plate (1) and the dust-proof fixed rear plate (14);

a screw nut (62) screwed to the screw (61);

and a link block (63) connected between the screw nut (62) and the movable cylinder seat (4).

4. The correction-free clamp for processing square workpieces according to claim 1, wherein anti-lifting blocks (42) are arranged on the front side and the rear side of the movable cylinder seat (4).

5. The correction-free clamp for processing square workpieces according to claim 4, wherein at least one locking cylinder (46) is arranged in the movable cylinder seat (4), and a locking block (461) capable of being locked in a guide groove (11) of the clamp base plate (1) is connected to the lower end of the locking cylinder (46).

6. The correction-free clamp for processing square workpieces according to claim 5, wherein each guide groove (11) is internally provided with a movable guide rail (111), and the bottom of the movable cylinder seat (4) is provided with at least one linear guide rail block (45) in sliding fit with the corresponding movable guide rail (111).

7. The correction-free clamp for processing square workpieces according to claim 1, wherein a plurality of fixed base oil cylinder piston rods (23) are arranged in the fixed oil cylinder base (2), and the upper ends of the fixed base oil cylinder piston rods (23) are connected with the fixed clamping blocks (3).

8. The correction-free clamp for processing square workpieces according to claim 1, wherein a plurality of movable seat cylinder ejector rods (44) are arranged in the movable cylinder seat (4), and the upper ends of the plurality of movable seat cylinder ejector rods (44) are connected with the movable clamping blocks (5).

9. The correction-free clamp for processing square workpieces according to claim 1, wherein limiting blocks (31) are arranged at the front end and the rear end of the fixed clamping block (3).

10. The correction-free clamp for processing square workpieces according to claim 1, wherein clamping grooves (51) for clamping the square workpieces are formed in the sides, close to each other, of the fixed clamping blocks (3) and the movable clamping blocks (5), and extension blocks (52) capable of limiting the tops of the workpieces are arranged at the upper ends of the clamping grooves (51).