CN218110083U - Engine rear box body machining clamp - Google Patents

Abstract

The utility model relates to a box adds clamping apparatus behind engine, including base and back box. The method is characterized in that: the base is provided with a vertical plate. An upper oil cylinder, a right oil cylinder and a lower oil cylinder are respectively arranged at the upper right part, the lower right part and the lower left part of the front surface of the vertical plate, the upper oil cylinder, the right oil cylinder and the lower oil cylinder are corner oil cylinders, the cylinder bodies of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are fixed with the vertical plate, and the piston rods of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are vertical to the vertical plate. The outer end of the piston rod is provided with a pressing plate, and the outer end of the pressing plate is connected with the outer end of the piston rod. The rear box body is positioned on the vertical plate surrounded by the upper oil cylinder, the right oil cylinder and the lower oil cylinder, and the opening part of the rear box body faces outwards. And supporting pins are arranged on the cushion blocks corresponding to the inner ends of the pressure plates and lean against corresponding reserved grooves in the outer wall of the rear box body in a tight manner. The inner ends of the pressure plates are all pressed at the upper ends of the corresponding supporting pins. By adopting the clamp, the positioning precision and the product quality can be improved. The positioning device is suitable for positioning when the rear box body of the automobile engine is processed.

Description

Engine rear box body machining clamp

Technical Field

The utility model relates to a clamp. In particular to a clamp for positioning a rear box body of an automobile engine when the rear box body is processed.

Background

It is known in the automobile engine case manufacturing industry that an automobile engine case is composed of a front case and a rear case. In order to ensure the manufacturing precision, when the automobile engine box body is processed, the front box body or the rear box body of the automobile engine needs to be fixed by a clamp. At present, all the clamps adopted for processing the rear box body of the automobile engine are manual clamps. The manual clamp is composed of a screw, a nut and a pressing plate, wherein a rod hole is processed at one end of the pressing plate, and the screw penetrates into the rod hole. One end of the screw is fixed on the processing table, and the nut is screwed at the other end of the screw. When the rear box body of the automobile engine is machined, at least two sets of manual fixtures are needed, and nuts of each set of manual fixtures are screwed one by one, so that pressing plates of the manual fixtures are tightly pressed around the datum plane of the machined rear box body of the automobile engine, and the rear box body of the automobile engine is sequentially positioned. Although the manual fixture can be used for positioning the rear box body of the automobile engine, the manual fixture is composed of the screw rods, the nuts and the pressing plates, one end of each screw rod of each manual fixture is fixed on the processing table during operation, and then the pressing plates are pressed around the reference surface of the rear box body of the automobile engine one by screwing the nuts. The whole positioning process is completely operated manually, the operation is troublesome, and the production efficiency is low. And manual operation is not beneficial to control of clamping force, and the positioning precision is low, so that the quality of the processed automobile engine rear box body is not high.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to overcome the above-mentioned not enough, provide an engine rear box adds clamping apparatus. By adopting the clamp, the positioning precision and the product quality can be improved.

The utility model discloses the above-mentioned problem that solves is realized by following technical scheme:

the utility model discloses a box adds clamping apparatus behind engine, including base and back box. The method is characterized in that: the base is provided with a vertical plate. An upper oil cylinder, a right oil cylinder and a lower oil cylinder are respectively arranged at the upper right part, the lower right part and the lower left part of the front surface of the vertical plate, the upper oil cylinder, the right oil cylinder and the lower oil cylinder are all corner oil cylinders, the cylinder bodies of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are fixed with the vertical plate through cushion blocks, and the piston rods of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are vertical to the vertical plate. The outer end of the piston rod is provided with a pressing plate, the surface of the pressing plate is parallel to the vertical plate, and the outer end of the pressing plate is connected with the outer end of the piston rod. The rear box body is positioned on the vertical plate surrounded by the upper oil cylinder, the right oil cylinder and the lower oil cylinder, and the opening part of the rear box body faces outwards. And supporting pins are arranged on the cushion blocks corresponding to the inner ends of the pressure plates and lean against corresponding reserved grooves in the outer wall of the rear box body in a tight manner. The inner ends of the pressure plates are all pressed at the upper ends of the corresponding supporting pins.

The vertical plates on the inner side and the left side of the upper oil cylinder are respectively provided with a round pin and a first floating support, the vertical plate between the upper oil cylinder and the right oil cylinder is provided with a second floating support, the vertical plate on the inner side of the second floating support is provided with a fourth floating support, the vertical plate between the right oil cylinder and the lower oil cylinder is sequentially provided with a third floating support and a diamond pin, and the round pin, the first floating support, the second floating support, the fourth floating support, the third floating support and the diamond pin respectively extend into corresponding reserved holes in the outer side of the bottom of the rear box body.

The utility model discloses a further improvement scheme is, go up all to have the water spray seat on the riser between cylinder and round pin and on the riser between right cylinder and lower cylinder, all there is the shower nozzle on the water spray seat. The spray heads are communicated with a tap water pipe by means of valves.

The utility model discloses a further improvement scheme is, two perpendicular limits of riser all have the cross section to be the frame of L shape, are mutual disposition between the lateral part of two frames, and two perpendicular limits of riser are arranged in respectively and are fixed in the perpendicular portion and the lateral part of two frames.

According to the scheme, the vertical plate is arranged on the base. An upper oil cylinder, a right oil cylinder and a lower oil cylinder are respectively arranged at the upper right side, the lower right side and the lower left side of the front surface of the vertical plate, the upper oil cylinder, the right oil cylinder and the lower oil cylinder are all corner oil cylinders, the cylinder bodies of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are fixed with the vertical plate through a first cushion block, and the piston rods of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are perpendicular to the vertical plate. The outer end of the piston rod is provided with a pressing plate, the surface of the pressing plate is parallel to the vertical plate, and one end of the pressing plate is connected with the outer end of the piston rod. The rear box body is positioned on the vertical plate surrounded by the upper oil cylinder, the right oil cylinder and the lower oil cylinder, and the opening of the rear box body faces outwards. And supporting pins are arranged on the cushion blocks corresponding to the inner ends of the pressure plates and lean against corresponding reserved grooves in the outer wall of the rear box body in a tight manner. The inner ends of the pressure plates are all pressed at the upper ends of the corresponding supporting pins. Before processing, a rear box body of the processed automobile engine is placed on the vertical plate surrounded by the upper oil cylinder, the right oil cylinder and the lower oil cylinder, and preliminary positioning is carried out through a round pin and a diamond pin. Then, the piston rods of the upper oil cylinder, the right oil cylinder and the lower oil cylinder contract inwards to drive the pressing plate to press the rear box body backwards. And finally, the rear box body is upwards supported through the first floating support, the second floating support, the fourth floating support and the third floating support, so that the positioning of the rear box body of the processed automobile engine is realized. The whole positioning process does not need manual operation. Compared with a manual clamp in the background high technology, the automatic clamping device is convenient to operate, high in production efficiency, controllable in clamping force and high in positioning precision, and therefore machining quality of a rear box body of an automobile engine is improved.

Drawings

FIG. 1 is a schematic view of the machining fixture for the rear box of the engine of the present invention;

FIG. 2 isbase:Sub>A schematic sectional view A-A of FIG. 1;

FIG. 3 is a schematic view of an engine rear case machining fixture with a part being machined.

Detailed Description

As shown in fig. 1, fig. 2 and fig. 3, the present invention relates to a fixture for machining an engine rear case, which comprises a base 1 and a rear case 7. The base 1 is provided with a vertical plate 4. Two vertical edges of the vertical plate 4 are provided with frames 5 with L-shaped cross sections, the transverse parts of the two frames 5 are oppositely arranged, and the two vertical edges of the vertical plate 4 are respectively arranged and fixed in the vertical parts and the transverse parts of the two frames 5. An upper oil cylinder 11, a right oil cylinder 15 and a lower oil cylinder 2 are respectively arranged above the right, below the right and below the left of the front surface of the vertical plate 4, the upper oil cylinder, the right oil cylinder and the lower oil cylinder are all corner oil cylinders, the cylinder bodies of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are fixed with the vertical plate 4 through a cushion block 12, and the piston rods 10 of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are perpendicular to the vertical plate 4. The outer end of the piston rod 10 is provided with a pressing plate 3, the surface of the pressing plate 3 is parallel to the vertical plate 4, and the outer end of the pressing plate is connected with the outer end of the piston rod 10. During processing, the rear box body 7 is positioned on the part of the vertical plate 4 enclosed by the upper oil cylinder 11, the right oil cylinder 15 and the lower oil cylinder 2, and the opening part of the rear box body faces outwards. And supporting pins 6 are fixed on the cushion blocks 12 corresponding to the inner ends of the pressure plates 3, and the supporting pins 6 are tightly leaned against the outer wall of the rear box body 7. The inner ends of the pressure plates 3 are all pressed on the upper ends of the corresponding support pins 6.

In order to further realize the positioning of the rear box body 7, a round pin 8 and a first floating support 9 are respectively arranged on the inner side of the upper oil cylinder 11 and the vertical plate 4 on the left side of the upper oil cylinder 11, a second floating support 13 is arranged on the vertical plate 4 between the upper oil cylinder 11 and the right oil cylinder 15, a fourth floating support 14 is arranged on the vertical plate 4 on the inner side of the second floating support 13, a third floating support 17 and a diamond pin 18 are sequentially arranged on the vertical plate 4 between the right oil cylinder 15 and the lower oil cylinder 2, and the round pin 8, the first floating support 9, the second floating support 13, the fourth floating support 14, the third floating support 17 and the diamond pin 18 respectively extend into corresponding reserved holes in the outer side of the bottom of the rear box body 7.

In addition, water spray seats are arranged on the vertical plate 4 between the upper oil cylinder 11 and the round pin 8 and the vertical plate 4 between the right oil cylinder 15 and the lower oil cylinder 2, and spray heads 16 are arranged on the water spray seats. The spray heads 16 are all in communication with the tap water pipe by means of valves and hoses. So that the clamp can be cleaned by spraying clean water in the processing process.

During processing, the processed rear box body 7 of the automobile engine is firstly placed on the part of the vertical plate 4 enclosed by the upper oil cylinder 11, the right oil cylinder 15 and the lower oil cylinder 2, and preliminary positioning is carried out through the round pin 8 and the diamond pin 18. Then, the piston rods of the upper oil cylinder 11, the right oil cylinder 15 and the lower oil cylinder 2 retract to drive the pressing plate 3 to press the rear box body 7 backwards. Finally, the rear box body 7 is outwards supported through the first floating support 9, the second floating support 13, the fourth floating support 14 and the third floating support 17, so that the rear box body 7 of the processed automobile engine is positioned.

Claims (4)

1. The engine rear box body machining clamp comprises a base (1) and a rear box body (7); the method is characterized in that: a vertical plate (4) is arranged on the base (1); an upper oil cylinder (11), a right oil cylinder (15) and a lower oil cylinder (2) are respectively arranged at the upper right part, the lower right part and the lower left part of the front surface of the vertical plate (4), the upper oil cylinder, the right oil cylinder and the lower oil cylinder are corner oil cylinders, the cylinder bodies of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are fixed with the vertical plate (4) by means of a cushion block (12), and the piston rods (10) of the upper oil cylinder, the right oil cylinder and the lower oil cylinder are vertical to the vertical plate (4); the outer ends of the piston rods (10) are respectively provided with a pressing plate (3), the plate surfaces of the pressing plates (3) are parallel to the vertical plate (4), and the outer ends of the pressing plates are connected with the outer ends of the piston rods (10); the rear box body (7) is positioned on a part of vertical plate (4) enclosed by the upper oil cylinder (11), the right oil cylinder (15) and the lower oil cylinder (2), and the opening part of the rear box body faces outwards; supporting pins (6) are arranged on the cushion blocks (12) corresponding to the inner end of the pressure plate (3), and the supporting pins (6) are tightly leaned against corresponding reserved grooves in the outer wall of the rear box body (7); the inner ends of the pressure plates (3) are pressed on the upper ends of the corresponding support pins (6).

2. The engine rear case machining jig according to claim 1, characterized in that: round pins (8) and first floating supports (9) are arranged on the inner side of the upper oil cylinder (11) and the vertical plate (4) on the left side of the upper oil cylinder (11), second floating supports (13) are arranged on the vertical plate (4) between the upper oil cylinder (11) and the right oil cylinder (15), fourth floating supports (14) are arranged on the vertical plate (4) on the inner side of the second floating supports (13), third floating supports (17) and diamond pins (18) are sequentially arranged on the vertical plate (4) between the right oil cylinder (15) and the lower oil cylinder (2), and the round pins (8), the first floating supports (9), the second floating supports (13), the fourth floating supports (14), the third floating supports (17) and the diamond pins (18) respectively extend into corresponding reserved holes in the outer side of the bottom of the rear box body (7).

3. The engine rear case machining jig according to claim 2, characterized in that: water spraying seats are arranged on the vertical plate (4) between the upper oil cylinder (11) and the round pin (8) and on the vertical plate (4) between the right oil cylinder (15) and the lower oil cylinder (2), and spray heads (16) are arranged on the water spraying seats; the spray heads (16) are all communicated with a tap water pipe through valves.

4. The engine rear box machining clamp as claimed in any one of claims 1 to 3, characterized in that: two vertical edges of the vertical plate (4) are provided with frames (5) with L-shaped cross sections, the transverse parts of the frames (5) on two sides are oppositely arranged, and the two vertical edges of the vertical plate (4) are respectively arranged and fixed in the vertical parts and the transverse parts of the two frames (5).

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