CN213828756U

CN213828756U - Pressure pressing device for guide rail assembly in semi-closed box

Info

Publication number: CN213828756U
Application number: CN202022933760.1U
Authority: CN
Inventors: 陈胜钱; 程海林; 毕杰; 程镇; 曾平凡; 凌伟
Original assignee: China Ordnance Industry Group Jiangshan Heavy Industry Research Institute Co ltd
Current assignee: China Ordnance Industry Group Jiangshan Heavy Industry Research Institute Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-30
Anticipated expiration: 2030-12-10

Abstract

A pressure pressing device for a guide rail assembly in a semi-closed box comprises a support and two groups of pressing assemblies, wherein two ends of the support penetrate out of the box body; two sets of subassemblies that compress tightly set up relatively, and every group compresses tightly and includes a depression bar frame, two sets of pressure seat groups, and the depression bar frame inner articulates in the horizontal stand middle part, and the box is worn out to depression bar frame outer end, and two sets of pressure seat groups symmetry articulate both sides below the depression bar frame, and every group pressure seat group includes a plurality of pressure seats that are used for compressing tightly the bottom plate side and arrange in proper order, and each presses a bottom surface and corresponding with the bottom plate side. The utility model provides a shortcoming that personnel intensity of labour is big, make the assembly process simple and efficient, promoted the assembly precision and realized that the process is controllable simultaneously.

Description

Pressure pressing device for guide rail assembly in semi-closed box

Technical Field

The utility model relates to a bottom plate pressurization closing device in semi-enclosed box.

Background

In the rocket launcher launching technology, the geometric tolerance between each guide rail surface in the guide rail assembly and the base reference surface of the box body directly influences the hitting precision of the rocket launcher. In fig. 1, the guide rail assembly is divided into three parts: the bottom plate 2, the low rail 3, the high rail 4 and other fasteners, bottom plate 2 are fibre winding, and low rail 3, high rail 4 are the ironwork, and 2 long 7500mm of bottom plate, 4 long 2800mm of high rail, 3 long 3800mm of low rail. After the position relation is determined, the three pieces are firstly glued in the box body 1 through strong glue, the length of the box body 1 is 7500mm, the width a is 1000mm, and the inner surface of the box body 1 is a winding object which is equivalent to a rough blank surface. The requirements of high-low rail installation are as follows: the parallelism between the bottom plate 2, the low rail 3, the high rail 4 and the bottom surface of the box body 1 is not more than 0.5. The verticality of the plane of the low rail 3 and the plane of the high rail 4 relative to the bottom surface of the box body 1, namely the reference N, is not more than 0.8, the parallelism relative to the reference N is not more than 0.8, and the planeness of the plane of the low rail 3 and the plane of the high rail 4 is not more than 0.5. The prior art is three parts processing respectively, guarantees respective geometric tolerances respectively, guarantees the geometric tolerances of height rail face and box base reference surface when the assembly at last, because each part processing respectively, so the processing accumulative error is big, and the adjustment is very difficult when the assembly, so mainly has two difficult points: the box body is a semi-closed space, and during assembly, a drill needs to be drilled in the box body back and forth, so that the box body is not in accordance with ergonomics, and the labor intensity of people is greatly increased. And secondly, how to conveniently press the bottom plate and the box body. In order to solve the problem (II), the technical method at the present stage is to press the bottom plate by manually carrying the heavy iron blocks.

Disclosure of Invention

The utility model aims at overcoming the above-mentioned not enough of prior art, and provide a semi-enclosed box inner rail set spare pressurization closing device, structural design is reasonable, it is convenient to use, improves the work efficiency that compresses tightly the process between bottom plate and the box and the quality that compresses tightly.

The technical scheme of the utility model: the support comprises a horizontal frame parallel to the bottom surface of the box body and supporting legs for supporting the horizontal frame, the supporting legs are positioned on two sides of the horizontal frame, rollers are arranged at the lower ends of the supporting legs, and the supporting legs are positioned on two sides of a bottom plate; two sets of subassemblies that compress tightly set up relatively, and every group compresses tightly and includes a depression bar frame, two sets of pressure seat groups, and the depression bar frame inner articulates in the horizontal stand middle part, and the box is worn out to depression bar frame outer end, and two sets of pressure seat groups symmetry articulate both sides below the depression bar frame, and every group pressure seat group includes a plurality of pressure seats that are used for compressing tightly the bottom plate side and arrange in proper order, and each presses a bottom surface and corresponding with the bottom plate side.

The height of each pressure seat in each group of pressure seat groups is gradually reduced from the inner end of the pressure rod frame along the outer end.

The supporting legs are vertically connected to two sides of the horizontal frame.

The pressing seat is of a step-shaped columnar structure, and the upper portion of the pressing seat is thin and the lower portion of the pressing seat is thick.

And a plurality of connecting rods are sequentially arranged on two sides below the pressure rod frame, and the upper part of each pressure seat is hinged to a support below each connecting rod through a pin shaft.

The inner end of the pressure bar frame is connected with a seat in the middle of the horizontal frame through a pin shaft II.

In order to solve the defect of tolerance accumulation of three pieces of machining, a new process flow is adopted: the guide rail assembly three firstly uses the pin to determine the position relation and then processes the high and low rail surfaces together by taking the bottom surface of the bottom plate as the reference, thereby not only reducing the transportation time and improving the efficiency, but also reducing the error, and simultaneously converting the form and position tolerance of the high and low rail surfaces and the base reference surface of the box body into the form and position tolerance of the upper surface of the bottom plate and the base reference surface. After the high and low rail surfaces are processed, the bottom plate and the box body are bonded well, and the form and position tolerance of the bottom plate and the base reference surface of the box body must be ensured. Because the viscose is fluid, the irregular inner surface of the box body can be filled up, and the difficulty that the position tolerance between the high and low rail surfaces and the datum plane of the base of the box body is difficult to guarantee due to the fact that the inner surface of the box body is a blank surface can be avoided only by enabling the used viscose to be higher than the highest point of the inner surface of the box body.

The utility model discloses can make assembler convenient and fast ground make bottom plate and box compress tightly to accomplish the assembly of box and bottom plate sooner more accurately, especially be applied to semi-enclosed box infrabasal plate and box assembly field. On one hand, the utility model solves the problem of labor intensity of personnel, and does not need to drill in the box body back and forth; on the other hand, the utility model provides a can conveniently compress tightly bottom plate and box internal surface during the viscose, can compress tightly bottom plate and box through the mechanism once.

The utility model can realize that (I) the bottom plate and the box body can be tightly pressed after the viscose is coated; and (II) form and position tolerance between the high and low rail surfaces and the base reference surface of the box body after installation can be quickly ensured. The device firstly utilizes the fluidity of the fluid to solve the defect of uneven inner surface of the box body, and then utilizes the two-stage lever force application principle to realize the compression effect.

The utility model provides a shortcoming that personnel intensity of labour is big, make the assembly process simple and efficient, promoted the assembly precision and realized that the process is controllable simultaneously.

Drawings

FIG. 1 is an assembly requirement diagram;

FIG. 2 is one of the usage status diagrams of the present invention;

fig. 3 is a second usage state diagram of the present invention;

fig. 4 is a sectional view of the utility model in use;

FIG. 5 is an enlarged view of a portion of FIG. 4;

in the figure, 1-box; 2-a bottom plate; 3-low rail; 4-high rail; 5-a bracket; 6-a strut frame; 7-pressing the base; 8-a pin shaft; 9-support; 10-a connecting rod; 11-pin shaft II; 12-a roller; 13-a leg; 14-seat.

Detailed Description

In the drawings 2-5, the utility model comprises a bracket 5 and two groups of pressing components, wherein two ends of the bracket penetrate out of a box body 1, the bracket comprises a horizontal frame parallel to the bottom surface of the box body and supporting legs 13 for supporting the horizontal frame, the supporting legs 13 are positioned at two sides of the horizontal frame, rollers 12 are arranged at the lower ends of the supporting legs 13, and the supporting legs 13 are positioned at two sides of a bottom plate 2; two sets of subassemblies that compress tightly set up relatively, and every group compresses tightly and includes a depression bar frame 6, two sets of pressure seat groups, and 6 the inner hinges in the horizontal stand middle part of depression bar frame, and the box is worn out to 6 outer ends of depression bar frame, and every group pressure seat group includes a plurality of pressure seats 7 that are used for compressing tightly 2 sides of bottom plate and arranges in proper order, and each presses 7 bottom surfaces of seat and 2 sides of bottom plate corresponding. A plurality of connecting rods 10 are sequentially arranged on two sides below the pressure rod frame 6, and the upper part of each pressure seat 7 is hinged to a support 9 below each connecting rod 10 through a pin shaft 8. The inner end of the pressure lever frame 6 is connected with a seat 14 in the middle of the horizontal frame through a pin shaft II 11.

When the device is used, after a person sends the device into a box body, the pressure lever frame 6 is pressed down by external force, and the pressure lever frame 6 is connected with the seat 14 through the pin shaft II 11 and provides supporting force through the fulcrum 13. A plurality of second-level levers matched with the pressure rod frame 6 move downwards under the action of external force to drive the pressure seat 7, the pin shaft 8, the support 9 and the connecting rod 10 to integrally move downwards, and the pressure seat 7 is connected with the support 9 through the pin shaft 8 to form a hinge mechanism. The pressing effect obtained by a plurality of secondary lever mechanisms is realized in the process of pressing downwards.

Claims

1. The utility model provides a semi-enclosed box inner rail subassembly pressurization closing device which characterized in that: the device comprises a support (5) and two groups of pressing assemblies, wherein two ends of the support penetrate out of a box body (1), the support comprises a horizontal frame parallel to the bottom surface of the box body and supporting legs (13) used for supporting the horizontal frame, the supporting legs (13) are positioned on two sides of the horizontal frame, rollers (12) are arranged at the lower ends of the supporting legs (13), and the supporting legs (13) are positioned on two sides of a bottom plate (2); two sets of subassemblies that compress tightly set up relatively, and every group compresses tightly including a depression bar frame (6), two sets of pressure seat groups, and depression bar frame (6) inner articulates in the horizontal stand middle part, and the box is worn out to depression bar frame (6) outer end, and two sets of pressure seat group symmetries articulate both sides below depression bar frame (6), and every group pressure seat group includes a plurality of pressure seats (7) that are used for compressing tightly bottom plate (2) side and arrange in proper order, and each presses seat (7) bottom surface corresponding with bottom plate (2) side.

2. The pressing and compressing device for the inner guide rail assembly of the semi-closed box as claimed in claim 1, wherein: the height of each pressure seat (7) in each group of pressure seat groups is gradually reduced from the inner end of the pressure rod frame (6) along the outer end.

3. The pressing and compressing device for the inner guide rail assembly of the semi-closed box as claimed in claim 1, wherein: the supporting legs (13) are vertically connected to two sides of the horizontal frame.

4. The pressing and compressing device for the inner guide rail assembly of the semi-closed box as claimed in claim 1, wherein: the pressing seat (7) is of a step-shaped columnar structure, and the upper part is thin and the lower part is thick.

5. The pressing and compressing device for the inner guide rail assembly of the semi-closed box as claimed in claim 1, wherein: a plurality of connecting rods (10) are sequentially arranged on two sides below the pressure rod frame (6), and the upper part of each pressure seat (7) is hinged to a support (9) below each connecting rod (10) through a pin shaft (8).

6. The pressing and compressing device for the inner guide rail assembly of the semi-closed box as claimed in claim 1, wherein: the inner end of the pressure bar frame (6) is connected with a seat (14) in the middle of the horizontal frame through a pin shaft II (11).