CN215967176U

CN215967176U - Positioning tool

Info

Publication number: CN215967176U
Application number: CN202122645260.2U
Authority: CN
Inventors: 郭浩; 周武城; 陈琦; 余小波; 唐欧
Original assignee: Zhuzhou CRRC Special Equipment Technology Co Ltd
Current assignee: Zhuzhou CRRC Special Equipment Technology Co Ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-03-08
Anticipated expiration: 2031-11-01

Abstract

The utility model provides a positioning tool, which comprises a basic frame, a positioning adjusting component and a centering adjusting component, wherein the positioning adjusting component and the centering adjusting component are arranged on the basic frame; the inner wall of the base frame encloses an accommodating space for accommodating a first object to be machined and a second object to be machined, wherein the second object to be machined is arranged above the first object to be machined; the positioning adjusting component comprises a first positioning adjusting unit and a second positioning adjusting unit which are symmetrically arranged at two ends of the basic frame; a positioning block for positioning a first object to be processed is arranged on the inner wall of the base frame close to the first positioning adjusting unit and/or the second positioning adjusting unit; the centering adjustment assembly comprises a guide adjustment unit for providing centering positioning and guiding for a first object to be machined and a top centering unit for providing positioning for a second object to be machined. The positioning tool is simple to operate, accurate in positioning and high in operation efficiency, and can meet the requirements of lean production.

Description

Positioning tool

Technical Field

The utility model relates to the technical field of production of a middle beam of a truck, in particular to a positioning tool.

Background

When the truck center sill is produced, the end face of a rear slave plate seat D on the center sill is taken as a reference, and a sleeper beam lower cover plate assembly E and a center plate F are sequentially positioned and installed. The existing installation method (taking the model C70 of the center sill of a truck as an example) is to manually position a sleeper beam lower cover plate assembly E and a center plate F through measuring by a measuring tape, and the specific positioning result is shown in figure 1. 101mm in fig. 1 represents the minimum distance between the positioned sleeper beam lower cover plate component E and the end face of the rear slave plate seat D; 901mm represents the minimum distance between the central axis of the positioned core plate F and the end surface of the rear slave plate seat D. The positioned lower cover plate of the sleeper beam and the center plate F are both ensured to be centered with the center beam and cannot be inclined. And finally, welding and assembling the positioned and centered lower cover plate of the sleeper beam and the center disk F.

However, the above-mentioned conventional mounting method has the following disadvantages:

1) the positioning and the assembling of the sleeper beam lower cover plate component E and the core disc F are sequentially carried out through the tape measure manually, the operation is complex, and the measurement error is easy to occur.

2) Different truck centre sill types (such as C70, C80E and P70) have different positioning sizes for the sleeper beam lower cover plate component E and the core disc F, and manual measurement positioning is easy to cause confusion.

3) The positioning efficiency is low, the positioning precision is poor, and the requirement of lean production can not be met.

In summary, a positioning tool is urgently needed to solve the problems in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning tool, which has the following specific technical scheme:

a positioning tool comprises a base frame, a positioning adjusting component and a centering adjusting component, wherein the positioning adjusting component and the centering adjusting component are arranged on the base frame;

the inner wall of the base frame encloses an accommodating space for accommodating a first object to be machined and a second object to be machined, wherein the second object to be machined is arranged above the first object to be machined;

the positioning adjusting component comprises a first positioning adjusting unit and a second positioning adjusting unit which are used for positioning the base frame, and the first positioning adjusting unit and the second positioning adjusting unit are symmetrically arranged at two ends of the base frame; a positioning block for positioning a first object to be processed is arranged on the inner wall of the base frame close to the first positioning adjusting unit and/or the second positioning adjusting unit;

the centering adjusting assembly comprises a guide adjusting unit for providing centering positioning and guiding for a first object to be machined and a top centering unit for providing positioning for a second object to be machined; the guide adjusting unit comprises guide blocks symmetrically arranged on the inner wall of the base frame; the top centering unit is detachably arranged on the base frame in a spanning mode and comprises a positioning insertion section used for inserting the second object to be machined.

Preferably, the first positioning adjustment unit and the second positioning adjustment unit both comprise an active transmission assembly and a passive transmission assembly, and the active transmission assembly comprises an active part and a wedge block arranged at one end of the active part;

the passive transmission assembly comprises a rolling shaft, a sliding block, an elastic piece and a pressing plate which are arranged on two sides of the wedge block in sequence; one side of the rolling shaft is tightly attached to the wedge-shaped block, and the other side of the rolling shaft is tightly attached to the sliding block; the sliding block is connected with the pressing plate through an elastic piece.

Preferably, the driving part comprises a hand wheel and a screw rod, one end of the screw rod is connected with the hand wheel, and the other end of the screw rod is connected with the wedge-shaped block;

the first positioning adjusting unit and the second positioning adjusting unit further comprise shells, and the shells are in threaded connection with the screw rod; the wedge block is arranged in the shell; and a channel for the operation of the passive transmission assembly is arranged on the shell.

Preferably, the centering adjustment assembly further comprises telescopic fine adjustment units symmetrically arranged on the inner wall of the base frame and used for providing centering fine adjustment positioning for the first object to be processed; the telescopic fine adjustment unit comprises a plurality of screw rods; and a plurality of groups of threaded holes matched with the screw rods are arranged on the basic frame, so that the distance between the end part of the screw rod and the first object to be processed is adjustable.

Preferably, a plurality of groups of mounting holes for mounting the top centering unit are arranged on the base frame at intervals.

Preferably, a hanging ring is further arranged on the base frame.

Preferably, a hand-taking position is arranged on the top centering unit.

The technical scheme of the utility model at least has the following beneficial effects:

according to the positioning tool, the base frame is positioned through the first positioning adjusting unit and the second positioning adjusting unit, so that the positioning tool is positioned; the first object to be processed is positioned through the positioning block on the base frame, and the guide adjusting unit is convenient for quickly guiding and centering the first object to be processed through the symmetrically arranged guide blocks; and the second object to be processed is inserted and positioned through the positioning insertion section of the top centering unit. The positioning tool is simple to operate, accurate in positioning and high in operation efficiency, and can meet the requirements of lean production.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a prior art arrangement of a lower bolster plate assembly and a center plate positioned on a center sill;

fig. 2 is a schematic axial-side structural view of a positioning tool in embodiment 1 of the present invention;

FIG. 3 is a front view of the positioning tool of FIG. 2 during operation;

FIG. 4 is a view of the positioning tool of FIG. 2 during operation;

FIG. 5 is a schematic diagram of the internal structure of the first positioning adjustment unit in the positioning tool of FIG. 2;

the device comprises a base frame 1, a base frame 2, wedge blocks 3, a rolling shaft 4, a sliding block 5, an elastic piece 6, a pressing plate 7, a hand wheel 8, a screw rod 9, a shell 10, a guide block 11, a screw rod 12, a positioning block 13, a hanging ring, a first positioning adjusting unit, a second positioning adjusting unit, a top centering unit C, a top centering unit D, a rear driven plate seat E, a sleeper beam lower cover plate, and a center plate F.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example 1:

referring to fig. 2-5, a positioning tool comprises a base frame 1, and a positioning adjusting member and a centering adjusting assembly which are arranged on the base frame 1;

the inner wall of the base frame 1 encloses an accommodating space for accommodating a first object to be machined (a sleeper beam lower cover plate component E) and a second object to be machined (a core plate F), wherein the second object to be machined is arranged above the first object to be machined;

the positioning adjusting component comprises a first positioning adjusting unit A and a second positioning adjusting unit B which are used for positioning the base frame 1 and are symmetrically arranged at two ends of the base frame 1; a positioning block 12 for positioning a first object to be processed is arranged on the inner wall of the base frame 1 close to the first positioning and adjusting unit A;

the centering adjusting assembly comprises a guide adjusting unit for providing centering positioning and guiding for a first object to be machined and a top centering unit C for providing positioning for a second object to be machined; the guide adjusting unit comprises 8 guide blocks 10 symmetrically arranged on the inner wall of the base frame 1; the top centering unit C is detachably arranged on the base frame 1 in a spanning mode and comprises a positioning insertion section for inserting a second object to be machined.

Referring to fig. 5, each of the first positioning adjustment unit a and the second positioning adjustment unit B includes an active transmission assembly and a passive transmission assembly, and the active transmission assembly includes an active part and a wedge block 2 disposed at one end of the active part;

the passive transmission assembly comprises a rolling shaft 3, a sliding block 4, an elastic piece 5 (specifically a spring) and a pressing plate 6 which are arranged on two sides of the wedge-shaped block 2 in sequence; one side of the rolling shaft 3 is tightly attached to the wedge-shaped block 2, and the other side of the rolling shaft is tightly attached to the sliding block 4; the slide block 4 is connected with a pressure plate 6 through an elastic piece 5.

Referring to fig. 5, the driving part comprises a hand wheel 7 and a screw rod 8, one end of the screw rod 8 is connected with the hand wheel 7, and the other end is connected with the wedge-shaped block 2;

the first positioning adjusting unit A and the second positioning adjusting unit B also comprise a shell 9, and the shell 9 is in threaded connection with the screw rod 8; the wedge block 2 is arranged in the shell 9; a channel for the operation of the passive transmission assembly is arranged on the housing 9.

Referring to fig. 4, the centering adjustment assembly further includes telescopic fine adjustment units symmetrically arranged on the inner wall of the base frame 1 for providing centering fine adjustment positioning for the first object to be processed; the telescopic fine adjustment unit comprises 8 screw rods 11; and a plurality of groups of threaded holes matched with the screw rods 11 are formed in the base frame 1, so that the distance between the end parts of the screw rods and the first object to be processed is adjustable. An adjusting handle is arranged at the end part of the screw rod 11.

Referring to fig. 2, 2 sets of mounting holes for mounting the top centering unit C are arranged on the base frame 1 at intervals, and the top centering unit C and the corresponding mounting holes are flexibly adjusted to be mounted, so that the mounting requirements of center plates F of truck center beams of different models (such as C70, C80E, P70 and the like) can be met.

Referring to fig. 2-4, a hanging ring 13 is further arranged on the base frame 1, so that the positioning tool can be conveniently hung by a swing arm.

Referring to fig. 2, a hand-picking position is arranged on the top centering unit C, so that the top centering unit C can be picked and placed conveniently.

Referring to fig. 4, when the positioning tool described in embodiment 1 is used, mainly the sleeper beam lower cover plate assembly E and the core disc F are positioned and installed on the open wagon center sill (a groove is formed in the open wagon center sill in the length direction, and the rear slave seat D is arranged in the groove). The specific operation process is as follows:

s1, the positioning tool is hung on the middle beam of the open wagon through a spiral arm crane, the first positioning adjusting unit A is enabled to be attached to the end face of a rear follow plate seat D on the middle beam, and the positioning tool is positioned in the length direction of the middle beam of the open wagon;

step S2, rotating hand wheels 7 on the first positioning adjusting unit A and the second positioning adjusting unit B to drive a screw rod 8 to move downwards, so that a wedge block 2 presses a roller 3, the roller 3 pushes a slide block 4, the slide block 4 pushes a pressing plate 6 to the pressing plate 6 through a spring, the pressing plate 6 is tightly attached to the wall surface of a groove where a middle beam machining position of the open wagon is located, and the positioning tool is ensured to be positioned integrally;

step S3, hoisting a sleeper beam lower cover plate assembly E in an accommodating space of a base frame 1 through a spiral arm crane, positioning by means of a positioning block 12, quickly guiding and centering the sleeper beam lower cover plate assembly E through a guiding and adjusting unit, centering and fine adjusting the sleeper beam lower cover plate assembly E through a telescopic fine adjusting unit, and accurately positioning and centering the sleeper beam lower cover plate assembly E; then, welding a sleeper beam lower cover plate assembly E on a processing station of the middle beam;

step S4, firstly, a center plate F (provided with a fixing hole) is hung on a sleeper beam lower cover plate assembly E through a spiral arm hanger, then a top centering unit C is fixed in a mounting hole on the base frame 1 and positioned right above the center plate F, the top centering unit C is inserted into the fixing hole on the center plate F through a positioning insertion section of the top centering unit C, and after the center plate F is fixed, the center plate F is welded on the sleeper beam lower cover plate assembly E;

step S5, rotating hand wheels 7 on the first positioning adjusting unit A and the second positioning adjusting unit B to drive a screw rod 8 to move upwards, enabling a wedge block 2 to move upwards, enabling a roller 3, a sliding block 4 and a pressing plate 6 to be far away from the wall surface of the groove under the action of resilience force of a spring, enabling an adjusting screw to be far away from a lower cover plate of the sleeper beam to form a component E, then hanging the positioning tool away from a processing station through a swing arm, and finishing operation.

The positioning tool in the embodiment 1 is already used in a middle beam production line of the middle-sized Changjiang river vehicles, the positioning is accurate, the operation efficiency is high, and the requirement of lean production can be met. The positioning tool can be manufactured in batches subsequently, and can be updated iteratively according to different center sill models.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The positioning tool is characterized by comprising a base frame (1), a positioning adjusting component and a centering adjusting assembly, wherein the positioning adjusting component and the centering adjusting assembly are arranged on the base frame (1);

the inner wall of the base frame (1) encloses an accommodating space for accommodating a first object to be machined and a second object to be machined, wherein the second object to be machined is arranged above the first object to be machined;

the positioning and adjusting component comprises a first positioning and adjusting unit (A) and a second positioning and adjusting unit (B) which are used for positioning the base frame (1), and the first positioning and adjusting unit (A) and the second positioning and adjusting unit (B) are symmetrically arranged at two ends of the base frame (1); a positioning block (12) for positioning a first object to be processed is arranged on the inner wall of the base frame (1) close to the first positioning and adjusting unit (A) and/or the second positioning and adjusting unit (B);

the centering adjusting assembly comprises a guide adjusting unit for providing centering positioning and guiding for a first object to be machined and a top centering unit (C) for providing positioning for a second object to be machined; the guide adjusting unit comprises guide blocks (10) symmetrically arranged on the inner wall of the base frame (1); the top centering unit (C) is detachably arranged on the base frame (1) in a spanning mode and comprises a positioning insertion section for inserting a second object to be processed.

2. The positioning tool according to claim 1, wherein the first positioning adjustment unit (A) and the second positioning adjustment unit (B) each comprise an active transmission component and a passive transmission component, and the active transmission component comprises an active part and a wedge block (2) arranged at one end of the active part;

the passive transmission assembly comprises a rolling shaft (3), a sliding block (4), an elastic piece (5) and a pressing plate (6) which are arranged on two sides of the wedge-shaped block (2) in sequence; one side of the rolling shaft (3) is tightly attached to the wedge-shaped block (2), and the other side of the rolling shaft is tightly attached to the sliding block (4); the sliding block (4) is connected with the pressing plate (6) through an elastic piece (5).

3. The positioning tool according to claim 2, characterized in that the driving part comprises a hand wheel (7) and a screw rod (8), one end of the screw rod (8) is connected with the hand wheel (7), and the other end is connected with the wedge block (2);

the first positioning adjusting unit (A) and the second positioning adjusting unit (B) further comprise a shell (9), and the shell (9) is in threaded connection with the screw rod (8); the wedge-shaped block (2) is arranged in the shell (9); and a channel for the operation of the passive transmission assembly is arranged on the shell (9).

4. The positioning tool according to claim 3, characterized in that the centering adjustment assembly further comprises telescopic fine adjustment units symmetrically arranged on the inner wall of the base frame (1) and used for providing centering fine adjustment positioning for the first object to be machined; the telescopic fine adjustment unit comprises a plurality of screw rods (11); the distance between the end part of the screw rod and the first object to be processed is adjustable by arranging a plurality of groups of threaded holes matched with the screw rod (11) on the base frame (1).

5. The positioning tool according to any one of claims 1 to 4, characterized in that a plurality of sets of mounting holes for mounting the top centering unit (C) are provided at intervals on the base frame (1).

6. The positioning tool according to claim 5, characterized in that a lifting ring (13) is further arranged on the base frame (1).

7. The positioning tooling according to claim 6, characterized in that a gripper station is provided on the top centering unit (C).