CN221185576U - Workpiece clamping tool for machining - Google Patents

Abstract

The utility model discloses a workpiece clamping tool for machining, which comprises a base and a workbench, wherein a plurality of substrates which are distributed in a rectangular array shape are fixedly arranged on the workbench, two clamping assemblies are arranged on each substrate, each clamping assembly comprises a fixed limiting block, a movable limiting block, a positioning column and a positioning block, the fixed limiting block is positioned on the left side or the right side of the substrate, and is fixedly arranged on the workbench, the movable limiting block and the fixed limiting block are oppositely arranged and can be close to or far from the fixed limiting block, the positioning column is fixed on the front side or the rear side of the substrate, the positioning block and the positioning column are oppositely arranged, and the fixed limiting block, the movable limiting block, the positioning column and the positioning block form a clamping area for clamping a workpiece to be machined. The clamping device can realize rapid clamping of batch workpieces, can realize stable and reliable clamping of the workpieces, and can meet the requirement of batch processing.

Description

Workpiece clamping tool for machining

Technical Field

The utility model relates to the technical field of clamping for machining workpieces, in particular to a workpiece clamping tool for machining.

Background

Machining, also known as machining, refers to the process of changing the physical dimensions or properties of a workpiece by a mechanical device, and is a common form of workpiece machining. Machining typically involves turning, milling the surface of a workpiece, drilling, boring, etc., which requires the use of clamping tools to clamp the workpiece prior to machining, so that it is stably and reliably secured to a machining center, thereby facilitating subsequent machining.

In order to adapt to higher machining efficiency, batch machining is often required to be implemented, namely, workpieces with the same specification (the same size and shape) are clamped on the same clamping tool, and then the machining is implemented by numerical control machining equipment, so that the clamping tool is required to be designed, and the batch machining operation is adapted on the basis that stable and reliable clamping of the workpieces can be realized.

Disclosure of utility model

The utility model aims to overcome the defects and the shortcomings in the prior art, and provides a workpiece clamping tool for machining, which can realize rapid clamping of batch workpieces, can realize stable and reliable workpiece clamping and can meet the requirement of batch machining.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a work piece clamping frock for machining, is including being fixed in machining center's base and the workstation of fixed connection on the base, its characterized in that: the workbench on fixed mounting have be a plurality of base plate that rectangular array form distributes, all be equipped with two on every base plate and press from both sides the subassembly, every is pressed from both sides the subassembly and is all including fixed stopper, movable stopper, reference column and locating piece, fixed stopper be located the left side or the right side of place base plate, and fixed mounting in on the workbench, movable stopper is relative setting with fixed stopper, and can be close to or keep away from fixed stopper, the reference column be fixed in the front side or the rear side of place base plate, the locating piece is relative setting with the reference column, fixed stopper, movable stopper, reference column and locating piece enclose into a clamp region for a work piece (square) of waiting for processing of clamping.

Further, two movable limiting blocks which are oppositely arranged are provided with inclined planes with upper narrow sides and lower wide sides at opposite sides, a trapezoid top block with upper wide sides and lower narrow sides is arranged between the two movable limiting blocks, and the inclined planes at two sides of the trapezoid top block can be respectively matched with the inclined planes at one side of the two movable limiting blocks.

Further, a plurality of air cylinders distributed in a rectangular array shape are fixedly installed on the bottom surface of the workbench, and piston rods of the air cylinders penetrate through the workbench upwards and are fixedly connected with the bottom surface of the corresponding trapezoid top block respectively.

Further, two adjacent base plates share one fixed limiting block.

Further, a fixing block is fixedly arranged on the front side and the rear side of each substrate on the workbench, a cross rod is fixedly connected to one side, facing the corresponding positioning block, of the fixing block, and the end part of the cross rod is fixedly connected with the corresponding positioning block.

Further, two adjacent substrates share one fixed block.

Furthermore, a foolproof column is fixedly connected to the inner part of each clamping area on each substrate.

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

According to the utility model, the plurality of substrates distributed in a rectangular array form are arranged on the workbench, two clamping assemblies are arranged on each substrate, each clamping assembly comprises a fixed limiting block, a movable limiting block, a positioning column and a positioning block, and surface positioning and point positioning are respectively formed around the periphery of a workpiece (square), so that the rapid clamping of batch workpieces can be realized, the stable and reliable clamping of the workpieces can be realized, and the requirement of batch processing can be met; in addition, two adjacent clamping assemblies in the transverse direction and the longitudinal direction share some parts (fixed limiting blocks or fixed blocks), so that the utilization rate is improved, and the structure is simplified.

Drawings

Fig. 1 is a schematic structural diagram of the present utility model.

Fig. 2 is a schematic partial structure of fig. 1.

Fig. 3 is a cross-sectional view of the structure of fig. 1.

Fig. 4 is a schematic diagram of a second embodiment of the present utility model (without the base).

Fig. 5 is a schematic structural view of the present utility model after clamping a workpiece.

Fig. 6 is a partial schematic view of fig. 5.

Fig. 7 is a schematic view of the structure of a workpiece clamped by the utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, a workpiece clamping tool for machining comprises a base 1 fixed in a machining center and a workbench 2 fixedly connected to the base 1, six substrates 3 distributed in a rectangular array are fixedly mounted on the workbench 2, two clamping assemblies 4 are arranged on each substrate, each clamping assembly comprises a fixed limiting block 5, a movable limiting block 6, a positioning column 7 and a positioning block 8, the fixed limiting block 5 is located on the left side or the right side of the substrate and is fixedly mounted on the workbench 2, the movable limiting block 6 and the fixed limiting block 5 are oppositely arranged and can be close to or far from the fixed limiting block 5, the positioning column 7 is fixed on the front side or the rear side of the substrate, the positioning block 8 and the positioning column 7 are oppositely arranged, the fixed limiting block 5, the movable limiting block 6, the positioning column 7 and the positioning block 8 enclose a clamping area 9, and twelve clamping areas are formed in total, and each clamping area is used for clamping a workpiece 10 (square) to be machined, and twelve workpieces to be machined can be clamped.

In the utility model, two movable limiting blocks 6 which are oppositely arranged are respectively provided with inclined planes with narrow upper part and wide lower part at opposite sides, a trapezoid top block 11 with wide upper part and narrow lower part is arranged between the two movable limiting blocks 6, and the inclined planes at two sides of the trapezoid top block 11 can be respectively correspondingly matched with the inclined planes at one side of the two movable limiting blocks 6.

In the utility model, six air cylinders 12 distributed in a rectangular array shape are respectively and fixedly arranged on the bottom surface of a workbench 2, and the piston rod of each air cylinder upwards penetrates through the workbench 2 and is respectively and fixedly connected with the bottom surface of a corresponding trapezoid top block 10.

Therefore, the piston rods of the cylinders 12 retract to drive the trapezoidal top blocks 11 to move downwards, and in the process of moving downwards the trapezoidal top blocks 11, the corresponding movable limiting blocks 6 are respectively extruded to two sides to be close to the opposite fixed limiting blocks 5, so that the workpieces 10 are clamped; the piston rods of the cylinders 12 extend to drive the trapezoid top blocks 11 to move upwards, and then the movable limiting blocks 6 are pulled to be far away from the opposite fixed limiting blocks 5, so that clamping of the workpieces 10 is relieved.

In the utility model, two adjacent base plates 3 share one fixed limiting block 5, so that the utilization rate is improved, and the structure is simplified.

In the utility model, a fixed block 13 is fixedly arranged on the front side and the rear side of each substrate on the workbench 2, a cross bar 14 (usually two) is fixedly connected to one side of the fixed block 13 facing the corresponding positioning block 8, and the end part of the cross bar 14 is fixedly connected with the corresponding positioning block 8.

Thereby, the distance between each fixed block 13 and the positioning column 7 is adjusted by installing cross bars 14 with different lengths.

In the utility model, two adjacent base plates 3 share one fixed block 8, so that the utilization rate is improved, and the structure is simplified.

In the utility model, a fool-proof column 15 is fixedly connected to each substrate in each clamping area and can be inserted into a through hole 16 on the workpiece 10, so that the workpiece 10 is prevented from being placed wrongly.

The utility model is further described below with reference to the accompanying drawings:

before clamping, a cross rod 14 with a proper length is selected according to the size of a workpiece 10 (square) to be processed, one end of the cross rod is fixedly connected with each corresponding fixed block 13, and each positioning block 8 is fixedly connected with the other end of each corresponding cross rod 14.

During clamping, each workpiece 10 (twelve square workpieces) to be machined is correspondingly placed in each clamping area 9, so that the left side or the right side surface of each workpiece 10 is respectively abutted against each corresponding fixed limiting block 5, and the front side or the rear side surface of each workpiece 10 is respectively abutted against each corresponding positioning column 7 and each corresponding positioning block 8.

Then, the piston rods of the cylinders 12 retract to drive the trapezoidal top blocks 11 to move downwards, and in the process of moving downwards the trapezoidal top blocks 11, the corresponding movable limiting blocks 6 are respectively extruded to two sides to approach the opposite fixed limiting blocks 5, so that the workpieces 10 are clamped.

After clamping in place, machining (turning, milling the surface of the workpiece 10, drilling, boring, etc. of the workpiece 10) is performed on each workpiece 10 in a machining center.

After the machining is finished, the piston rods of the cylinders 12 extend out to drive the trapezoid top blocks 11 to move upwards, then the movable limiting blocks 6 are pulled to be far away from the corresponding fixed limiting blocks 5, the clamping of the workpieces 10 is relieved, and the machined workpieces 10 are taken out.

It should be noted that the present utility model is applicable to clamping of square workpieces, but also to clamping of other shapes, such as round workpieces.

Although the present disclosure describes embodiments, not every embodiment is described in terms of a single embodiment, and such description is for clarity only, and one skilled in the art will recognize that the embodiments described in the disclosure as a whole may be combined appropriately to form other embodiments that will be apparent to those skilled in the art.

Therefore, the above description is not intended to limit the scope of the application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (7)

1. The utility model provides a work piece clamping frock for machining, is including being fixed in machining center's base and the workstation of fixed connection on the base, its characterized in that: the workbench on fixed mounting have be a plurality of base plate that rectangular array form distributes, all be equipped with two on every base plate and press from both sides the subassembly, every is pressed from both sides the subassembly and is all including fixed stopper, movable stopper, reference column and locating piece, fixed stopper be located the left side or the right side of place base plate, and fixed mounting in on the workbench, movable stopper is relative setting with fixed stopper, and can be close to or keep away from fixed stopper, the reference column be fixed in the front side or the rear side of place base plate, the locating piece is relative setting with the reference column, fixed stopper, movable stopper, reference column and locating piece enclose into a clamp region for a work piece of standby processing of clamping.

2. The workpiece clamping tool for machining according to claim 1, wherein: two movable limiting blocks which are oppositely arranged are respectively provided with inclined planes with upper widths and lower widths on opposite sides, a trapezoidal top block with upper widths and lower widths is arranged between the two movable limiting blocks, and the inclined planes on two sides of the trapezoidal top block can be respectively matched with the inclined planes on one side of the two movable limiting blocks correspondingly.

3. The workpiece clamping fixture for machining according to claim 2, wherein: the bottom surface of the workbench is fixedly provided with a plurality of air cylinders which are distributed in a rectangular array shape, and the piston rod of each air cylinder upwards penetrates through the workbench and is fixedly connected with the bottom surface of the corresponding trapezoid top block.

4. The workpiece clamping tool for machining according to claim 1, wherein: two adjacent base plates share one fixed limiting block.

5. The workpiece clamping tool for machining according to claim 1, wherein: the workbench is characterized in that a fixing block is fixedly arranged on the front side and the rear side of each substrate, a cross rod is fixedly connected to one side, facing the corresponding positioning block, of each fixing block, and the end part of each cross rod is fixedly connected with the corresponding positioning block.

6. The workpiece clamping fixture for machining according to claim 5, wherein: two adjacent base plates share one fixed block.

7. The workpiece clamping tool for machining according to claim 1, wherein: and a foolproof column is fixedly connected to the inner part of each clamping area on each substrate.