CN213730592U

CN213730592U - Overturning clamp

Info

Publication number: CN213730592U
Application number: CN202022195050.3U
Authority: CN
Inventors: 彭志通; 杨兴彬
Original assignee: Chongqing Yujiang Lanfeng Power Parts Co ltd
Current assignee: Chongqing Yujiang Lanfeng Power Parts Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-07-20
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a turning clamp, including four-axis bottom plate and tailstock bottom plate, install the head supporting seat on the four-axis bottom plate, install the afterbody supporting seat on the tailstock bottom plate, be equipped with the mainboard between head supporting seat and the afterbody supporting seat, be equipped with clamping mechanism and location pinhole on the mainboard, it is connected with the four-axis reference column to rotate on the head supporting seat, fixedly connected with four-axis curb plate on the four-axis reference column, the four-axis curb plate with mainboard fixed connection; the tail support seat is rotatably connected with a tail seat positioning column, a tail seat side plate is fixedly connected to the tail seat positioning column, and the tail seat side plate is fixedly connected with the main plate; the four-axis positioning column and the tailstock positioning column are coaxially arranged. The overturning clamp can meet the processing requirements of parts on different surfaces, shorten the repeated clamping time of the parts and improve the positioning precision of the parts.

Description

Overturning clamp

Technical Field

The utility model belongs to the technical field of machining, concretely relates to upset anchor clamps.

Background

At present, when a plurality of parts such as a rigid surface, a back surface, an oil passage hole and the like of an engine cylinder are machined, the same end surface needs to be machined at different positions, and therefore the parts need to be clamped and turned over repeatedly during machining. The mode is time-consuming and labor-consuming, and the positioning precision of the repeatedly clamped part is influenced, so that the quality of the part is ensured to be very unfavorable.

SUMMERY OF THE UTILITY MODEL

The utility model provides a turning clamp realizes that the part once fixes a position the processing demand that satisfies multiple angle to solve the problem in the background art.

The technical scheme of the utility model as follows: a turnover clamp comprises a four-axis bottom plate fixedly arranged on a processing table through bolts and limiting pin shafts and a tailstock bottom plate fixedly arranged on the processing table, wherein a head supporting seat is arranged on the four-axis bottom plate, a tail supporting seat is arranged on the tailstock bottom plate, a main plate for positioning and fixing a part is arranged between the head supporting seat and the tail supporting seat, a clamping mechanism and a positioning pin hole are arranged on the main plate, and the clamping mechanism is used for clamping the part;

the head supporting seat is rotatably connected with a four-axis positioning column, a four-axis side plate is fixedly connected to the four-axis positioning column, and the four-axis side plate is fixedly connected with the main plate; the tail support seat is rotatably connected with a tail seat positioning column, a tail seat side plate is fixedly connected to the tail seat positioning column, and the tail seat side plate is fixedly connected with the main plate; the four-axis positioning column and the tailstock positioning column are coaxially arranged.

Further: the clamping mechanism comprises a clamping seat fixedly installed on the clamping plate, a clamping cylinder is arranged on the clamping seat, and a clamping head is arranged on a piston rod of the clamping cylinder.

Further: the four-axis curb plate with the mainboard carries out fixed connection through the screw, the tailstock curb plate with the mainboard carries out fixed connection through the screw.

Further: and the clamping plate is provided with an air tightness detection hole, and the air tightness detection equal-height block is correspondingly arranged at the air tightness detection hole.

Has the advantages that: this scheme provides a upset anchor clamps, and this upset anchor clamps can realize 360 upsets under the condition of not dismantling the part according to the demand when the clamping part to satisfy the processing demand on the part different face, shorten the repeated clamping time of part, improve part positioning accuracy, it is obvious to improvement part machining quality and machining efficiency effect.

Drawings

Fig. 1 is a schematic structural view of a part clamped by a turning clamp in the utility model;

FIG. 2 is a schematic plane structure diagram of a main board clamping component of the present invention;

fig. 3 is a schematic front structural view of the turning clamp of the present invention;

fig. 4 is a schematic plan view of the splint of fig. 3.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the utility model discloses a turning fixture, including four-axis bottom plate 31 and tailstock bottom plate 32, four-axis bottom plate 31 passes through bolt and spacer pin fixed mounting on the original processing platform 2 of lathe, and tailstock bottom plate 32 also fixed mounting is on processing platform 2 through the bolt. The four-axis bottom plate 31 is provided with a head support seat 41, and the tail support seat 32 is provided with a tail support seat 42. A main plate 7 is arranged between the head support seat 41 and the tail support seat 42, and a clamping mechanism 8 and a positioning pin hole 9 are arranged on the main plate 7. When the part 1 is machined, a positioning pin is arranged in the positioning pin hole 9, and the part 1 is positioned and clamped on the main board 7 through the clamping mechanism 8 and the positioning pin.

In this scheme, the mainboard 7 can be completed 360 degrees of rotation, therefore, the mounting structure of mainboard 7 and head supporting seat 41 and afterbody supporting seat 42 is as follows: head supporting seat 41 is last to rotate and to be connected with four-axis reference column 61, fixedly connected with four-axis curb plate 51 on the four-axis reference column 61, four-axis curb plate 51 with mainboard 7 fixed connection. The tail support seat 42 is rotatably connected with a tailstock positioning column 62, the tailstock positioning column 62 is fixedly connected with a tailstock side plate 52, and the tailstock side plate 52 is fixedly connected with the main board 7. As shown in fig. 3, the four-axis positioning column 61 and the tailstock positioning column 62 are coaxially and horizontally disposed.

In the specific operation: the part 1 is first clamped to the main plate 7. Then, the four-axis side plate 51 and the tailstock side plate 52 are rotated simultaneously, and the first processing and positioning of the part 1 is completed. After the part 1 is positioned for the first time, the four-axis side plate 51 is locked to the head support base 41 by the locking screw on the four-axis side plate 51. The tailstock side plate 52 is also locked by a locking screw in the same structure. At this point, the first machining and positioning of the part 1 is completed. After the part 1 is machined for the first time, the locking screws on the four-axis side plate 51 and the tailstock side plate 52 are loosened, the operation steps of machining and positioning the part 1 for the first time are repeated, the part 1 is rotated, the secondary positioning of the part 1 is completed, and then the part 1 is locked. After the part 1 is positioned for the second time, the operation steps of machining and positioning the part 1 are repeated, and multiple surfaces of the part 1 are machined in a rotating mode.

In the process, as the part 1 and the main board 7 are clamped for only one time, when the part 1 is adjusted to be processed and positioned for multiple times, only the four-axis side plate 51 and the tailstock side plate 52 need to be adjusted to rotate (the four-axis side plate 51 and the tailstock side plate 52 rotate to drive the main board 7 to rotate), therefore, the processing and positioning precision of the part 1 is very high, the time required by changing the processing position is short, and the operation of workers is also very simple and convenient.

This scheme has done further optimization to clamping mechanism 8, has taken the clamping mechanism 8 of vapour-pressure type, and clamping mechanism 8 includes the holder of fixed mounting on splint, be equipped with die clamping cylinder on the holder, be equipped with the chuck on die clamping cylinder's the piston rod. The clamping mechanism 8 is simple in structure and high in clamping force, and therefore the clamping mechanism is very suitable for being applied to the turnover main board 7 to clamp the part 1.

Aiming at different parts 1, if the parts 1 need to be processed in three directions, three main boards 7 can be designed simultaneously, and each main board 7 is used for clamping one part 1. Therefore, the main plate 7, the four-axis side plate 51 and the tailstock side plate 52 are preferably fixedly connected in a detachable mode, so that the parts 1 in three different shapes are continuously machined, the main plate 7 can be replaced so far, and the efficiency is higher.

The part 1 can be positioned in the form of a positioning column and also can be positioned in an air tightness detection mode. Therefore, in further optimization, the clamping plate is provided with an air tightness detection hole, and the air tightness detection equal-height block 10 is correspondingly arranged at the air tightness detection hole. The air tightness detection holes and the air tightness detection equal-height blocks 10 are correspondingly connected with an air tightness detector to finish air tightness detection and positioning of the part 1 on the main board 7, and the functions are more.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A turnover fixture is characterized in that: the clamping device comprises a four-axis bottom plate (31) fixedly installed on a machining table (2) through bolts and limiting pin shafts and a tailstock bottom plate (32) fixedly installed on the machining table (2), wherein a head supporting seat (41) is installed on the four-axis bottom plate (31), a tail supporting seat (42) is installed on the tailstock bottom plate (32), a main plate (7) used for positioning and fixing a part (1) is arranged between the head supporting seat (41) and the tail supporting seat (42), a clamping mechanism (8) and a positioning pin hole (9) are arranged on the main plate (7), and the part (1) is clamped by the clamping mechanism (8);

the head supporting seat (41) is rotatably connected with a four-axis positioning column (61), the four-axis positioning column (61) is fixedly connected with a four-axis side plate (51), and the four-axis side plate (51) is fixedly connected with the main plate (7); the tail support seat (42) is rotatably connected with a tailstock positioning column (62), the tailstock positioning column (62) is fixedly connected with a tailstock side plate (52), and the tailstock side plate (52) is fixedly connected with the main plate (7); the four-axis positioning column (61) and the tailstock positioning column (62) are coaxially arranged.

2. A flipping fixture according to claim 1, wherein: the clamping mechanism (8) comprises a clamping seat fixedly mounted on the clamping plate, a clamping cylinder is arranged on the clamping seat, and a clamping head is arranged on a piston rod of the clamping cylinder.

3. A flipping fixture according to claim 1, wherein: the four-axis side plate (51) and the main plate (7) are fixedly connected through screws, and the tailstock side plate (52) and the main plate (7) are fixedly connected through screws.

4. A flipping fixture according to claim 2, wherein: and the clamping plate is provided with an air tightness detection hole, and the air tightness detection equal-height block (10) is correspondingly arranged at the air tightness detection hole.