Combined drilling and tapping device of vertical machining center

Abstract

The invention discloses a combined drilling and tapping device of a vertical machining center. Comprising a clamping and positioning device and a corresponding pressing device, the clamping and positioning device comprises a basic clamping and positioning device and a corresponding inherited clamping and positioning device, and the basic clamping and positioning device comprises a basic bottom plate and a plurality of equal-height blocks distributed on the basic bottom plate; and the foundation positioning devices are connected to the foundation bottom plate and / or the corresponding equal-height blocks corresponding to the workpieces. The combined drilling and tapping device of the vertical machining center can continuously machine multiple sets of workpieces, the machining operation technology is simple, and the production efficiency is high.

Description

Technical Field

[0001] The present invention relates to a forklift production device. In particular, it relates to a vertical machining center combined drilling and tapping device for machining forklift parts. Background Art

[0002] In the production of forklift trucks, there are many self-made structural parts and relatively more machined parts, all of which are produced in batches of sets. Moreover, different parts require different machining tooling devices to ensure the design dimension requirements. If the number of machining equipment is limited, when machining different parts on the same equipment, it is necessary to continuously switch the tooling. At the same time of switching the tooling, it is also necessary to level and correct the tooling. These operations of changing and correcting the tooling all require a large amount of time and workload, which not only reduces the machining production efficiency but also increases the unnecessary labor intensity. Summary of the Invention

[0003] The purpose of the present invention is to provide a vertical machining center combined drilling and tapping device for the problems existing in the above-mentioned prior art. This vertical machining center combined drilling and tapping device can continuously machine multiple groups of workpieces, with simple machining operation technology and high production efficiency.

[0004] The technical solution of the vertical machining center combined drilling and tapping device of the present invention includes a clamping and positioning device and a corresponding pressing device. The clamping and positioning device includes a basic clamping and positioning device and a corresponding inherited clamping and positioning device. The basic clamping and positioning device includes a basic bottom plate, several equal-height blocks distributed on the basic bottom plate, and a basic positioning device corresponding to each workpiece and connected to the basic bottom plate and / or the corresponding equal-height blocks.

[0005] The basic positioning device includes several positioning columns or positioning pins respectively corresponding to one side and one end of each workpiece and connected to the corresponding equal-height blocks and the basic bottom plate.

[0006] The vertical machining center combined drilling and tapping device of the present invention can continuously machine multiple groups of workpieces on the same machine tool. One group includes several workpieces. After machining one group of workpieces, only need to replace the machined group of workpieces with the inherited clamping and positioning device on the basis of the basic clamping and positioning device, and then can continue to machine another group of workpieces. It is not necessary to remove any part of the original basic clamping and positioning device, nor to re-correct the tooling. This device has a simple structure, few components, simple clamping, fast switching, and the two groups of workpieces can be of the same type or different types. It has strong adaptability and greatly improves the machining production efficiency. Brief Description of the Drawings

[0007] Figure 1 It is a three-dimensional structural schematic diagram of clamping and machining a group of workpieces in an embodiment of the vertical machining center combined drilling and tapping device of the present invention; Figure 2 For Figure 1Explosion diagram of the combined drilling and tapping device of a vertical machining center after removing the workpiece; Figure 3 Another three-dimensional structural schematic diagram of the workpiece clamping and machining of an embodiment of the combined drilling and tapping device of the vertical machining center of the present invention; Figure 4 For Figure 3 Explosion diagram of the combined drilling and tapping device of a vertical machining center after removing the corresponding workpiece. Detailed implementation method

[0008] In order to further understand the technical solution of the present invention, the technical solution of the invention will be clearly and completely described below through embodiments in combination with the accompanying drawings.

[0009] The combined drilling and tapping device of the vertical machining center of the present invention includes a basic clamping and positioning device, an inheritance clamping and positioning device, and corresponding pressing components, etc. The inheritance clamping and positioning device includes a stacked base plate and a combined positioning device. The combined positioning device includes a positioner disposed between the basic base plate and the stacked base plate, and a stacked positioning device corresponding to each corresponding workpiece and connected to the stacked base plate. The stacked base plate is disposed on the basic base plate through the positioner and the equal-height blocks; its basic positioning device includes a plurality of positioning columns or positioning pins respectively corresponding to one side and one end of each workpiece and connected to the corresponding equal-height blocks and the basic base plate; the stacked positioning device includes a plurality of positioning pins or positioning columns respectively corresponding to one side and one end of each corresponding workpiece and connected to the stacked base plate; the positioner includes positioning through holes or positioning blind holes respectively opened on the basic base plate and the stacked base plate, and corresponding double-headed positioning pins connected between the positioning through holes or positioning blind holes of the stacked base plate and the basic base plate.

[0010] As Figures 1 - 4 shown. Its basic clamping and positioning device includes a basic base plate 1, 3 equally spaced equal-height blocks 2, and a basic positioning device, etc. The 3 equal-height blocks 2 are respectively fixedly arranged on the relative two sides and the middle of the basic base plate through screws 6.

[0011] In this example, its basic positioning device includes side positioning columns 3-1 respectively corresponding to the positions near the two opposite ends on one side of each workpiece 5-1 and fixedly connected to the two side equal-height blocks 2, and end positioning columns 3-2 respectively corresponding to the end parts of one end of each workpiece 5-1 and fixedly connected to one side of the basic base plate 1. In this embodiment, its basic clamping and positioning device can simultaneously perform three-point positioning and machining on a group of 8 workpieces respectively.

[0012] The pressing component 4 of the basic clamping and positioning device includes pressing blocks 4a respectively pressing on every two adjacent workpieces, bolts 4c connecting the equal-height block in the middle of the basic base plate 1 and the pressing block 4a, and nuts 4b connecting the bolts 4c and the pressing block 4a. In this example, the pressing block 4a is provided with a side-opening U-shaped groove 4a1, and the pressing block is sleeved on the bolt through this U-shaped groove.

[0013] Its inherited clamping and positioning device includes a stacked base plate 8, a combined positioning device, etc. The combined positioning device includes a number of positioning pins 9 respectively fixedly connected to the stacked base plate 8, a double-headed positioning pin 10, etc. Each positioning pin 9 corresponds to one end of each corresponding workpiece 5-2 and the positions near both ends on one side thereof, forming a three-point positioning for each corresponding workpiece 5-2.

[0014] The double-headed positioning pin includes a double-headed positioning pin 10a respectively inserted and connected to the positioning through holes 7 of the stacked base plate 8 and the base base plate 1, a boss 10b fixedly connected to the middle of the double-headed positioning pin 10a, etc. The boss 10b radially protrudes from the peripheral wall surface of the double-headed positioning pin and its cross-section is larger than the corresponding inner diameter of the positioning through hole 7. The positioning through holes 7 are correspondingly opened in the middle of the opposite ends of the base base plate and the stacked base plate. The positioning through holes 7 of the base base plate and the stacked base plate are adaptively matched with the double-headed positioning pin 10a to position the base base plate and the stacked base plate. The thickness of the protruding part of the boss is equal to or less than the thickness of the equal-height block 2.

[0015] The pressing block of the pressing assembly 4 for the inherited clamping and positioning device is connected in a sleeve-in manner with a bolt through its through hole. The rest of the structure and connection method of the pressing assembly can be similar to that of the pressing assembly of the basic clamping and positioning device.

[0016] During operation, the base base plate is fixed to the workpiece processing workbench. Eight workpieces 5-1 are horizontally placed on the equal-height blocks together with the equal-height blocks, and one side and one end of each workpiece are respectively abutted against the corresponding positioning columns on one side and one end. Then, all the workpieces are pressed and installed on the base base plate in pairs by each pressing assembly, and a group of eight workpieces can be processed simultaneously.

[0017] After processing a group of workpieces, release the pressing assembly, remove the processed group of workpieces, stack the stacked base plate on the equal-height blocks of the base base plate, insert the opposite ends of the double-headed positioning pin into the positioning through holes of the base base plate and the stacked base plate, and fixedly connect the base base plate and the stacked base plate with bolt fasteners 11. The boss of the double-headed positioning pin limits the double-headed positioning pin or further strengthens the equal-height positioning support for the base base plate and the stacked base plate. Place the corresponding eight workpieces 5-2 of another group on the stacked base plate, and make each corresponding workpiece abut against the positioning pins on one side and one end respectively. Finally, press and fix each pair of them on the stacked base plate with the pressing assembly respectively to perform corresponding processing. Its inherited clamping and positioning device can also process corresponding different workpieces.

[0018] In another embodiment of the present invention, the pressing components of the inheritance clamping and positioning device and the pressing components of the basic clamping and positioning device have the same structural composition and connection method, etc. The positioner includes a positioning blind hole respectively opened on the basic base plate and a positioning through hole on the superimposed base plate, and a cylindrical double-headed positioning pin connected between the positioning through holes of the superimposed base plate and the basic base plate. The depth of the positioning blind hole of the basic base plate is slightly less than the thickness of the basic base plate, and the bottom wall of the blind hole limits the cylindrical double-headed positioning pin. That is, there is no need to set a boss on the double-headed positioning pin. The rest of the structure of the vertical machining center combined drilling and tapping device in this example and the corresponding connection method, usage method, etc. can be similar to those in the above embodiment.

[0019] For those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Claims

1. A vertical machining center combined drilling and tapping device, including a clamping and positioning device and a corresponding pressing device, characterized in that, The clamping and positioning device includes a basic clamping and positioning device and a corresponding inherited clamping and positioning device. The basic clamping and positioning device includes a basic bottom plate, a plurality of equal-height blocks distributed on the basic bottom plate, and a basic positioning device corresponding to each workpiece and connected to the basic bottom plate and / or the corresponding equal-height blocks.

2. The vertical machining center combined drilling and tapping device according to claim 1, wherein The basic positioning device includes a plurality of positioning columns or positioning pins respectively corresponding to one side and one end of each workpiece and connected to the corresponding equal-height blocks and the basic bottom plate.

Images