CN215699903U

CN215699903U - Lateral pressing mechanism for pressing parts

Info

Publication number: CN215699903U
Application number: CN202121951919.0U
Authority: CN
Inventors: 郑伟; 梁丽岩; 孙飞; 祁华; 朱文福; 邱亚男
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-01
Anticipated expiration: 2031-08-19

Abstract

The utility model provides a lateral pressing mechanism for pressing a part, and belongs to the technical field of machining. The lateral pressing mechanism comprises a support assembly and a positioning block. The utility model improves the processing capacity of the horizontal machine tool, expands the processing range of the horizontal machine tool, realizes the rapid clamping, straightening and aligning of parts and realizes the function of leveling the horizontal machine tool.

Description

Lateral pressing mechanism for pressing parts

Technical Field

The utility model belongs to the technical field of machining, and relates to a lateral pressing mechanism for pressing parts in the machining of a horizontal machine tool.

Background

When the horizontal machine tool is used for processing parts, the parts need to be pressed by a pressing plate, and the parts are not very convenient to straighten and align, so that a large amount of production preparation time is wasted, and the production efficiency is low; meanwhile, the horizontal machine tool has a limited machining range and cannot realize the function of leveling parts.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a lateral pressing mechanism for pressing a part in machining.

The technical scheme of the utility model is as follows:

a lateral pressing mechanism for pressing a part comprises a support assembly 1 and a positioning block 2.

The support assembly 1 comprises a support A, a support B, a movable pressing block 5, an adjustable bolt 6, an inner hexagonal screw A7, an inner hexagonal screw B9 and a precise inner hexagonal screw C8.

The movable pressing block 5 is of a wedge-shaped structure, the length direction of the movable pressing block is connected with one end of an adjustable bolt 6 through threads, and the movable pressing block 5 is arranged in a groove in the bottom of the support B to ensure that the movable pressing block 5 can transversely move in the support B; the other end of the adjustable bolt 6 is inserted into a round hole at the end part of the support B. The width of the movable pressing block 5 is in tolerance fit with the width of a notch of the support B by H7/f7, the thickness of the movable pressing block 5 is in tolerance fit with the depth of a groove of the support B by H8/f9, and the adjustable bolt 6 is in tolerance fit with a round hole at the end part of the support B by H9/f 9. The bottom of the support B is provided with a threaded hole, and an internal hexagonal screw A7 is screwed into the threaded hole and matched with an annular notch of the adjustable bolt 6, so that the adjustable bolt 6 can be adjusted after being assembled without stagnation and jamming. The internal hexagonal screw B9 is installed in a through hole at the top of the support B, and the internal hexagonal screw B9 is vertical to the wedge-shaped surface of the movable compression block 5.

The support A is a saddle-shaped support with a circular through hole in the middle, the assembled support B is arranged in the support A, a convex circle at the top of the support B is in clearance fit with the circular through hole of the support A, and the fit tolerance is H7/f 9; while the support B can oscillate with a small amplitude in the support a.

The precision inner hexagonal screw C8 connects the support A with a special square box of the horizontal machine tool, and the matching tolerance of the precision inner hexagonal screw C8 and the screw hole on the special square box is H9/f 9. The screw hole position on the support A is consistent with the screw hole position on the special square box, and the screw and pin rod hole position on the positioning block 2 is correspondingly consistent with the screw and pin rod hole position on the special square box.

Two locating blocks 2 are installed on a special square box of the horizontal machine tool through screws 3 and cylindrical pins 4, the two locating blocks are 90 degrees, and straightening and alignment are not needed.

Furthermore, the wedge-shaped surface of the movable pressing block 5 forms an included angle of 7 degrees with the horizontal plane.

Furthermore, the end surfaces of the movable pressing block 5 and the positioning block 2, which are in contact with the parts, are serrated stripe surfaces.

The utility model has the beneficial effects that: the utility model improves the processing capacity of the horizontal machine tool, expands the processing range of the horizontal machine tool, realizes the rapid clamping, straightening and aligning of parts and realizes the function of leveling the horizontal machine tool.

Drawings

Fig. 1 is a front view of a lateral hold-down mechanism assembly.

Fig. 2 is a top view of the lateral hold-down mechanism assembly.

Fig. 3 is a schematic view of the stand assembly, wherein (a) is a front view, (b) is a left side view, and (c) is a top view.

Fig. 4 is a schematic view of the support a, in which (a) is a front view, (b) is a left view, (c) is a top view, and (d) is a bottom view.

Fig. 5 is a schematic view of the support B, wherein (a) is a front view, (B) is a left view, (c) is a top view, and (d) is a bottom view.

Fig. 6 is a schematic view of the positioning block, wherein (a) is a front view, (b) is a top view, (c) is an a-a direction view, and (d) is a partial view.

In the figure: 1, a support assembly; 2, positioning a block; 3, a screw; 4, cylindrical pins; 5, moving the compaction block; 6, adjusting the bolt; 7, a hexagon socket screw A; 8 precision internal hexagonal screws C; 9 inner hexagonal screw B.

Detailed Description

The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.

As shown in fig. 1 and 2, a lateral pressing mechanism for pressing a part in machining includes a seat assembly 1 and a positioning block 2.

Two positioning blocks 2 are arranged on a special square box of a horizontal machine tool and are arranged at an angle of 90 degrees, the positioning blocks are fixed by cylindrical pins 4 and tightened by screws 3, and after assembly, the verticality of the positioning blocks and the verticality of the positioning blocks are within 0.03 mm.

The movable pressing block 5 is arranged in a groove at the bottom of the support B, one end of the adjustable bolt 6 is in threaded connection with the movable pressing block 5, and the other end of the adjustable bolt is inserted into a round hole at the end part of the support B. The bottom of the support B is provided with a threaded hole, and an internal hexagonal screw A7 is screwed into the threaded hole and matched with an annular notch of the adjustable bolt 6, so that the adjustable bolt 6 can be adjusted after being assembled without stagnation and jamming. And the internal hexagonal screw B9 is arranged in a through hole at the top of the support B and is vertical to the 7-degree wedge-shaped surface of the movable pressing block 5.

And (3) installing the assembled support B into a support A, and connecting and fixing the support A with a special square box of the horizontal machine tool by using a precise internal hexagonal screw C8 according to a proper position. At the moment, the part is attached to a square box special for a horizontal machine tool, the reference surface of the part is in contact with the fringe surfaces of two positioning blocks 2 forming an angle of 90 degrees, and the adjustable bolt 6 is rotated by an inner hexagonal wrench to laterally compress the part. If the lateral pressing surface of the part has a certain angle with the reference surface, the support B can swing left and right in the support A in a small amplitude, and the strip surface at the front end of the movable pressing block 5 is always kept to be completely contacted with the part to-be-pressed surface instead of being in point or line contact. Meanwhile, an inner hexagonal screw B9 on the support B is screwed down, so that the front end of the inner hexagonal screw B9 is in contact with a 7-degree notch of the movable pressing block 5, the movable pressing block is prevented from moving backwards due to insufficient pressing force of the adjustable bolt, and the clamping of parts is guaranteed to be firm. After the parts are machined, the adjustable bolt 6 and the inner hexagonal bolt B9 on the support B are loosened by an inner hexagonal wrench, and the parts are taken down.

If a part with another size is to be replaced for clamping, the position of the support assembly 1 on the special square box can be adjusted. The method is suitable for the part processing range: the length ranges from 750 mm to 110mm, and the width ranges from 650 mm to 30 mm.

Claims

1. A lateral pressing mechanism for pressing a part is characterized by comprising a support assembly (1) and a positioning block (2);

the support assembly (1) comprises a support A, a support B, a movable compression block (5), an adjustable bolt (6), an inner hexagonal screw A (7), an inner hexagonal screw B (9) and a precise inner hexagonal screw C (8);

the movable pressing block (5) is of a wedge-shaped structure, is arranged in a groove at the bottom of the support B and can transversely move in the support B; one end of an adjustable bolt (6) is connected in the movable pressing block (5) through threads, and the other end of the adjustable bolt is inserted into a round hole in the end part of the support B; the bottom of the support B is provided with a threaded hole, and an internal hexagonal screw A (7) is screwed into the threaded hole and is matched with an annular notch of the adjustable bolt (6) to ensure that the adjustable bolt (6) can play a role in adjustment after assembly; the inner hexagonal bolt B (9) is arranged in a through hole in the top of the support B, and the inner hexagonal bolt B (9) is vertical to the wedge-shaped surface of the movable pressing block (5);

the support A is a saddle-shaped support with a circular through hole in the middle, the assembled support B is arranged in the support A, and meanwhile, the support B can swing in the support A; the precision inner hexagonal screw C (8) connects the support A with a special square box of the horizontal machine tool;

the two positioning blocks (2) are arranged on a special square box of the horizontal machine tool through screws (3) and cylindrical pins (4), and the two positioning blocks are arranged at 90 degrees.

2. A lateral pressing mechanism for pressing parts according to claim 1, characterized in that the width of the movable pressing block (5) is in tolerance fit with the width of the notch of the support B by H7/f7, and the thickness of the movable pressing block (5) is in tolerance fit with the depth of the notch of the support B by H8/f 9; the adjustable bolt (6) is in tolerance fit with a round hole at the end part of the support B by adopting H9/f 9; the convex circle at the top of the support B is in clearance fit with the circular through hole of the support A, and the fit tolerance is H7/f 9; the fit tolerance of the precision internal hexagonal screw C (8) and the screw hole on the special square box is H9/f 9.

3. A lateral pressing mechanism for pressing parts according to claim 1 or 2, characterized in that the wedge-shaped surface of the movable pressing block (5) forms an angle of 7 ° with the horizontal plane.

4. The lateral pressing mechanism for pressing the part according to claim 1 or 2, wherein the end surfaces of the movable pressing block (5) and the positioning block (2) contacting the part are serrated striated surfaces.

5. The lateral pressing mechanism for pressing parts according to claim 3, wherein the end surfaces of the movable pressing block (5) and the positioning block (2) contacting the parts are saw-toothed striated surfaces.