CN210335237U

CN210335237U - Forge piston quadruplex position boring grab

Info

Publication number: CN210335237U
Application number: CN201921411926.4U
Authority: CN
Inventors: 黎昺哲; 李少峰; 徐凝慧
Original assignee: Anhui Anhuang Machinery Co ltd
Current assignee: Anhui Anhuang Machinery Co ltd
Priority date: 2019-08-28
Filing date: 2019-08-28
Publication date: 2020-04-17
Anticipated expiration: 2029-08-28

Abstract

The utility model relates to a forge piston processing field, specificly disclose a forge piston quadruplex position boring grab, including swivel work head and backing plate, the last fixed surface of backing plate is provided with four accurate heart bench vice, and the fixed of every accurate upper surface both ends symmetry to the heart bench vice is provided with two jack catchs, and jack catch top welded fastening has two spinal branch daggers. The height of all the supporting columns must be kept consistent with the rotation center spacing of the rotating table. An oil cylinder is arranged in the middle of each pair of precision centering bench vice, a T-shaped pressing plate is assembled and fixed at the top end part of a rod in the oil cylinder, and two ends of the T-shaped pressing plate are positioned above the clamping jaws. The base plate is fixed in the rotary worktable through two clamping plates, so that 180-degree turnover processing can be realized. The utility model discloses the advantage: simple structure, convenient operation, machining efficiency is high, low in production cost, and space utilization is high, and the facilitate promotion is implemented.

Description

Forge piston quadruplex position boring grab

Technical Field

The utility model relates to a forge piston processing field, specifically be a forge piston quadruplex position boring grab.

Background

Compared with the traditional aluminum alloy piston, the forged steel piston has high strength (more than or equal to 850 MPa) and is suitable for engines with high compression ratio. Therefore, when the forged steel piston is used for drilling and rough machining, higher requirements are placed on the rigidity of a machine tool and the precision of a clamp.

The conventional rough machining method for the bore hole of the forged steel piston comprises the following steps: a horizontal drilling special machine is adopted, manual feeding and discharging are carried out, single-station clamping is carried out, and a drilling processing mode is carried out on double cutters in opposite directions in the X direction at the same time. The time for processing one product by one machine tool is about 40 seconds, and the capacity of one machine tool per shift is about 675 pieces. The drilling rough drilling clamp has the advantages that one machine tool is required to be provided with one worker, only one product can be machined at one time, the production efficiency is low, the floor area of a production line is large, the difficulty is brought to batch production, and the drilling rough drilling clamp for the conventional forged steel piston, which is rapid in machining and high in efficiency, is urgently needed to be designed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a forge piston quadruplex position boring grab to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a four-station drilling fixture for forging pistons comprises a rotary workbench and a base plate, wherein four precise centering bench vices are fixedly arranged on the upper surface of the base plate, two clamping jaws are symmetrically and fixedly arranged at two ends of the upper surface of each precise centering bench vice, and two supporting columns are fixedly welded at the tops of the clamping jaws. The height of all the supporting columns must be kept consistent with the rotation center spacing of the rotating table. An oil cylinder is arranged in the middle of each pair of precision centering bench vice, a T-shaped pressing plate is assembled and fixed at the top end part of a rod in the oil cylinder, and two ends of the T-shaped pressing plate are positioned above the clamping jaws. Under the action of the oil cylinder, the ejector rod in the oil cylinder can rotate and stretch out and draw back, so that the T-shaped pressing plate is driven to perform related actions to clamp or loosen a workpiece. The base plate is fixed in the rotary worktable through two clamping plates, so that 180-degree turnover processing can be realized.

As a further aspect of the present invention: four precision centering vise are arranged in line and aligned in the X direction on the upper surface of the base plate.

As a further aspect of the present invention: the center distances of the left first precision centering bench vice and the left third precision centering bench vice and the left second precision centering bench vice and the left fourth precision centering bench vice are all consistent with the center distance of the double main shafts of the machining center.

As a further aspect of the present invention: the upper parts of the clamping jaws are provided with elastic plungers for tensioning workpieces, and the elastic plungers are convenient for fixing the workpieces and enable the workpieces to be fixed conveniently and quickly.

As a further aspect of the present invention: the oil cylinder is fixedly arranged on the lower surface of the base plate, so that the occupied space of the oil cylinder is saved.

As a further aspect of the present invention: the rotary worktable comprises an index plate and a tailstock, wherein the index plate and the tailstock are respectively arranged on two sides of the base plate.

As a further aspect of the present invention: the bottoms of the index plate and the tailstock of the rotary workbench are heightened by the heightening block, so that the heights of the index plate and the tailstock are kept consistent.

As a further aspect of the present invention: the index plate and the tail seat are respectively fixed on the base through the heightening blocks of the heightening blocks, so that the integrity of the whole device is kept.

As a further aspect of the present invention: the splint are L type structure, make backing plate and splint be connected more stably.

Compared with the prior art, the beneficial effects of the utility model are that: the four-piston-workpiece automatic loading and unloading device has the advantages that four piston workpieces are clamped at one time, four stations are machined simultaneously, machining efficiency is improved, labor is reduced, production cost is reduced, the space utilization rate of a production line is improved, and further automatic loading and unloading can be further realized. The utility model discloses the advantage: simple structure, convenient operation, machining efficiency is high, low in production cost, and space utilization is high, and the facilitate promotion is implemented.

Drawings

FIG. 1 is a schematic structural diagram of a four-station drilling jig for forging pistons.

Fig. 2 is a schematic structural diagram of an elastic plunger in a forging piston four-station drilling fixture.

In the figure, an oil cylinder 1, a backing plate 2, a precision centering bench clamp 3, a T-shaped pressing plate 4, a clamping jaw 5, an elastic plunger 6, a supporting column 7, a clamping plate 8, an index plate 9, a tailstock 10, a heightening block 11 and a base 12.

Detailed Description

In order to clearly understand the technical features, objects and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

Example 1

Referring to fig. 1-2, a four-station drilling jig for forging pistons comprises a rotary worktable and a backing plate 2, wherein four precision centering bench clamps 3 are fixedly arranged on the upper surface of the backing plate 2, and the four precision centering bench clamps 3 are arranged in a line and aligned in the X direction of the upper surface of the backing plate 2. The center distances of the left first precision centering bench clamp 3 and the left third precision centering bench clamp 3 and the center distances of the left second precision centering bench clamp 3 and the left fourth precision centering bench clamp are all consistent with the center distance of the double main shafts of the machining center. Two clamping jaws 5 are symmetrically and fixedly arranged at two ends of the upper surface of each precise centering bench vice 3, elastic plungers 6 for tensioning workpieces are assembled on the upper portions of the clamping jaws 5, and the elastic plungers 6 are convenient to fix the workpieces and convenient and rapid to fix. Two support columns 7 are fixed on the top of the clamping jaw 5 in a welding mode. The height of all the support columns 7 must be kept consistent with the pitch of the centers of rotation of the rotary tables. An oil cylinder 1 is arranged in the middle of each pair of precision centering bench clamps 3, the oil cylinder 1 is fixedly arranged on the lower surface of the base plate 2, so that the occupied space of the oil cylinder 1 is saved, a T-shaped pressing plate 4 is fixedly assembled at the top end of a rod in the oil cylinder 1, and two ends of the T-shaped pressing plate 4 are positioned above the clamping jaws 5. Under the action of the oil cylinder 1, the ejector rod in the oil cylinder 1 can rotate and stretch, so that the T-shaped pressing plate 4 is driven to perform related actions to clamp or loosen a workpiece.

The rotary workbench comprises an index plate 9 and a tailstock 10, the index plate 9 and the tailstock 10 are respectively arranged on two sides of the base plate 2, and the base plate 2 is fixed in the rotary workbench through two clamping plates 8, so that 180-degree turnover machining can be realized. The bottoms of the index plate 9 and the tailstock 10 of the rotary workbench are heightened by a heightening block 11, and the height of the index plate 9 is kept consistent with that of the tailstock 10. Splint 8 is L type structure, makes backing plate 2 be connected more stably with splint 8.

Example 2

In addition to embodiment 1, the index plate 9 and the tailstock 10 are fixed to the base chassis 12 by the raising block 11, respectively, so that the integrity of the entire apparatus is maintained.

The utility model discloses a theory of operation and operating procedure:

assembling: assembling a special clamp and a tool of the type required by the machining, calibrating the precision of the clamping position, and preparing the double-spindle machine tool for starting up;

feeding: the four piston workpieces are sequentially placed on a jaw 5 of a special fixture by a worker or a manipulator, an elastic plunger 6 at the upper part of the jaw 5 is automatically tensioned, the jaw 5 and the elastic plunger 6 are positioned by the periphery of the inner side of a to-be-drilled hole of the workpiece, and a support column 7 at the top of the jaw 5 is positioned by the inner top surface of the workpiece;

clamping: after the workpieces are placed, the two oil cylinders 1 work synchronously, and the ejector rods in the oil cylinders 1 rotate by 90 degrees and retract to drive the T-shaped pressing plates 4 to rotate and clamp the outer top surfaces of the four piston workpieces;

processing: the four-axis workbench is turned over by 90 degrees, the double cutters of the machining center machine the side holes of the first left piston workpiece and the first left piston workpiece at the same time, and then machine the side holes of the first left piston workpiece and the first left piston workpiece at the same time; after the machining is finished, the workbench is turned to-90 degrees, and the double cutters of the machining center machine the other side holes of the four piston workpieces in the same way.

Blanking: after all the processing is finished, the angle of the rotary worktable returns to zero, the two oil cylinders 1 work synchronously, the oil cylinder rods rotate to minus 90 degrees and extend to drive the T-shaped pressing plate 4 to rotate and loosen, and finally, the workpiece is taken down manually or by a mechanical hand.

The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a forge piston quadruplex position boring grab, including swivel work head and backing plate (2), the fixed surface of backing plate (2) is provided with four precision centering bench vice (3), the fixed two jack catchs (5) that are provided with of the upper surface both ends symmetry of every precision centering bench vice (3), a serial communication port, two spinal branch daggers (7) are welded and fixed at jack catch (5) top, the height of support column (7) is unanimous with the centre of rotation interval of swivel work head, every all be provided with an hydro-cylinder (1) to precision centering bench vice (3) centre, the tip assembly of the pole top in hydro-cylinder (1) is fixed with T shape clamp plate (4), backing plate (2) are fixed in swivel work head through two splint (8).

2. A forging piston four-station boring jig according to claim 1, characterized in that four precision centering vise (3) are arranged in line and aligned in the X direction on the upper surface of the backing plate (2).

3. The forging piston four-station drilling fixture as claimed in claim 2, wherein the center distances of the left first and third precision centering bench clamps (3) and the left second and fourth precision centering bench clamps (3) are consistent with the center distance of the double main shafts of the machining center.

4. A four-station drilling jig for forged pistons according to any one of claims 1 to 3, characterized in that the claw (5) is provided at its upper portion with a resilient plunger (6) for raising the workpiece at both sides.

5. A forging piston four-station drilling clamp according to claim 4, wherein the oil cylinder (1) is fixedly arranged on the lower surface of the backing plate (2).

6. A four-station drilling jig for forging pistons as claimed in claim 4, characterized in that the rotary worktable comprises an index plate (9) and a tailstock (10), and the index plate (9) and the tailstock (10) are respectively arranged on two sides of the backing plate (2).

7. A four-station drilling jig for forging pistons as claimed in claim 6, characterized in that the bottom of the index plate (9) and the tailstock (10) of the rotary table are raised by a raising block (11).

8. A forging piston four-station boring fixture as claimed in claim 7, wherein the index plate (9) and the tailstock (10) are fixed on the base pedestal (12) through a block (11) respectively.

9. A forging piston four-station boring jig according to claim 1, wherein the clamp plate (8) is of L-shaped configuration.