CN213916874U

CN213916874U - Build-up welding dress card composite jig

Info

Publication number: CN213916874U
Application number: CN202022892565.9U
Authority: CN
Inventors: 雷德
Original assignee: National Energy Group Shanxi Shentou No 2 Power Plant Co ltd; National Energy Group Guoyuan Power Co Ltd
Current assignee: National Energy Group Shanxi Shentou No 2 Power Plant Co ltd; National Energy Group Guoyuan Power Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-10
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a build-up welding dress card combined clamp, include: the clamping device comprises a bottom plate, a plurality of fixed bases fixedly arranged on the bottom plate, a plurality of detachable sliding clamping plates arranged on the fixed bases, and a plurality of detachable combined pressing plates arranged on the bottom plate; the plurality of fixed bases are uniformly and circumferentially arranged on the bottom plate around the center of the bottom plate, each fixed base comprises a first part and a second part, a sliding part and a sliding fit part are arranged on the first part, and the sliding fit part is configured to slide in the sliding part along the radial direction of the bottom plate; the plurality of combined pressing plates are uniformly and circumferentially arranged on the bottom plate around the center of the bottom plate, each combined pressing plate extends along the radial direction of the bottom plate and is configured to comprise a horizontal pressing plate for axially fixing a workpiece to be installed, and the plurality of combined pressing plates are arranged at intervals with the plurality of fixing bases. The utility model discloses a work piece fixed position's adjustment and locate mode's improvement have realized can quick clamping coal pulverizer roller child and roller core.

Description

Build-up welding dress card composite jig

Technical Field

The utility model relates to a build-up welding dress card combined clamp especially relates to a coal pulverizer roller child and roller core build-up welding dress card combined clamp.

Background

The surfacing machine generally adopts a one-to-one special fixture for clamping workpieces, the fixture is used for fixing the workpieces by adopting a base and a pressing frame which are in butt joint and clamped, and a fastening surface of the fixture is formed by extending six round bars welded on the base and uniformly distributed along the center of a turntable upwards to the height of the outline size of the workpieces. In the existing surfacing tool, clamps for clamping the roller tire and the roller core are independent special clamps, when the type of a workpiece is changed, the clamps need to be integrally disassembled and assembled again, so that the installation is time-consuming, labor-consuming, low in efficiency and high in labor cost; and the frequency of replacing the tool also increases the loss of the fastening bolt, reduces the safety factor and increases the consumption cost of the fastener. The fixing mode of the clamp base is unscientific, and potential safety hazards exist in firmness. The gravity center height of the fixture body is large, so that the workbench generates larger additional torque after being displaced, and the safety factor of the rated load of the positioner is reduced. The design principle of the tool is limited, the fastening force of the tool on the workpiece is insufficient, and the workpiece is installed unreliably. The positioning adopts 60-degree uniformly-distributed jackscrews, the concentricity of the workpiece is difficult to adjust, so that the mounting and positioning accuracy of the fixture body is completely determined by the skill level of workers, and the mounting accuracy of the next workpiece is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a build-up welding dress card combined fixture to solve among the prior art build-up welding dress card anchor clamps and adopt the technical problem that the installation that a pair of special fixture leads to wastes time and energy the inefficiency.

In order to solve the above problem, the utility model adopts the following technical scheme:

a build-up welding dress card composite jig includes: the clamping device comprises a bottom plate, a plurality of fixed bases fixedly arranged on the bottom plate, a plurality of detachable sliding clamping plates arranged on the fixed bases, and a plurality of detachable combined pressing plates arranged on the bottom plate; the plurality of fixing bases are uniformly and circumferentially arranged on the bottom plate around the center of the bottom plate, each fixing base comprises a first part close to the center of the bottom plate and a second part far away from the center of the bottom plate, a sliding part and a sliding fit part are arranged on the first part, and the sliding fit part is configured to slide in the sliding part along the radial direction of the bottom plate;

the combined pressing plates are uniformly and circumferentially arranged on the bottom plate around the center of the bottom plate, each combined pressing plate extends along the radial direction of the bottom plate and is configured to comprise a horizontal pressing plate for axially fixing a workpiece to be installed, and the combined pressing plates are arranged at intervals with the fixing bases.

Optionally, the sliding part has two symmetrically arranged sliding chutes, the openings of which are opposite to each other; the sliding fit part is provided with a horizontal sliding block, the horizontal sliding block comprises a first horizontal part and a second horizontal part which are separated by the central line of the horizontal sliding block and a vertical fin which is vertically fixed on the horizontal sliding block along the central line of the horizontal sliding block, and the first horizontal part and the second horizontal part are respectively and slidably arranged in the two sliding grooves of the fixed base.

Optionally, the number of the fixing bases is four, and the four fixing bases are positioned on the bottom plate in a cross shape.

Optionally, the bottom plate is circular in shape; the number of the detachable sliding clamping plates is the same as that of the fixed bases; the workpiece to be installed comprises an MPS-245 roller tyre, an MPS-225 roller tyre or an MPS-245 roller core.

Optionally, a radial positioning jackscrew is fixedly arranged on the inner side of each fixed base close to the bottom plate; the radial positioning jackscrew comprises a horizontal bolt hole fixedly arranged on the fixing base and a bolt in threaded connection with the horizontal bolt hole; the bolt holes extend horizontally toward the center of the bottom plate in the radial direction of the bottom plate.

Optionally, the length of the bolt is greater than the length of the bolt hole such that when the bolt is tightened, the tip of the bolt abuts on the first side of the vertical fin.

Optionally, the number of the combined press plates is four.

Optionally, each of the combined pressing plates comprises a first vertical upright detachably mounted on the bottom plate and a first horizontal pressing plate fixed on the first vertical upright through bolts.

Optionally, the height of the first vertical column is greater than the height of the fixed base.

Optionally, each of the combined pressing plates further includes a second vertical pillar detachably mounted on the bottom plate, and a second horizontal pressing plate fixedly disposed on the second vertical pillar, the second vertical pillar is disposed on an inner side of the first vertical pillar near the center of the base, and the second horizontal pressing plate is overlapped above the first horizontal pressing plate.

In this application, radial is the direction of a line along a diameter or radius, or perpendicular to an axis.

Circumferential, i.e. "circumferential direction".

The utility model discloses a technical scheme can reach following beneficial effect:

1) the utility model discloses a work piece fixed position's adjustment and locate mode's improvement has realized can quick clamping coal pulverizer roller child and roller core (for example, can quick clamping MPS-245 coal pulverizer roller child and roller core and MPS-225 coal pulverizer roller child three kinds of work pieces), can furthest reduce installation cost, reduced the dismouting link, reduced the maintenance cost of frock to safe, high-quality, high-efficient and economic purpose has been reached.

2) The utility model provides a build-up welding dress card composite jig whole height reduces and draws close to the workstation base face, makes the focus reduce, reduces the moment of torsion that shifts, improves factor of safety and rated load.

3) The utility model provides a build-up welding dress card composite jig is applicable to the installation and the fixed of coal pulverizer roller child and roller core, does not need frequent dismouting anchor clamps body when changing the work piece, and the improvement of anchor clamps fixed mode has reduced the installation time of work piece, has improved work efficiency, alleviates workman's intensity of labour;

4) the surfacing and clamping combined clamp provided by the utility model realizes the positioning of the workpiece through the fixed base which is uniformly distributed in a cross shape, and the cross positioning is efficient and accurate; meanwhile, the combined pressing plate is adopted for fixing, so that the mounting and positioning precision of the workpiece is improved, and the process is ensured.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic top view of a composite fixture for build-up welding and chucking according to the present invention;

FIG. 2 is a cross-sectional view taken along section line A-A in FIG. 1;

FIG. 3 is a cross-sectional view of the build-up composite fixture after installation of a MPS-245 roller tire, wherein the cross-sectional view is taken along section line A-A corresponding to section line A-A in FIG. 1;

FIG. 4 is a cross-sectional view of the build-up composite fixture after installation of a MPS-225 roller tire, wherein the cross-sectional view is taken along section line A-A corresponding to section line A-A in FIG. 1;

FIG. 5 is a top view of the composite fixture for build-up welding and chucking after the detachable sliding clamping plate and the combined pressing plate are removed;

fig. 6 is a half-sectional view of the build-up welding chucking composite jig after mounting MPS-245 roller cores thereon.

Description of reference numerals:

1 base plate

2 fixed base

3 radial positioning jackscrew

4 Detachable sliding clamping plate

5 Combined pressing plate

6 chute

12MPS-245 roller tyre

13MPS-225 roller tyre

14MPS-245 roller core

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Referring to fig. 1-6, according to an embodiment of the present invention, there is provided a build-up welding chucking composite jig, including: the clamping device comprises a bottom plate 1, a plurality of fixed bases 2 fixedly arranged on the bottom plate, a plurality of detachable sliding clamping plates 4 arranged on the fixed bases 2 and a plurality of detachable combined pressing plates 5 arranged on the bottom plate.

In this embodiment, a plurality of fixing bases 2 are uniformly and circumferentially arranged on the bottom plate 1 around the center of the bottom plate 1, for example, the fixing bases 2 may be fixed on the bottom plate 1 by bolts or welding, and the fixing bases 2 may be at a certain height from the bottom plate 1; the fixing base 2 may include a first portion close to the center of the base plate 1 and a second portion far from the center of the base plate 1, wherein a sliding portion and a sliding fit portion configured to slide in a radial direction of the base plate 1 within the sliding portion are provided on the first portion of the fixing base 2;

in this embodiment, a plurality of composite press plates 5 are arranged on the base plate 1 circumferentially and uniformly around the center of the base plate 1, each composite press plate 5 extends in the radial direction of the base plate 1 and is configured to include a horizontal press plate for axially fixing a workpiece to be mounted, and the plurality of composite press plates 5 are provided at intervals from the plurality of stationary bases 2.

Specifically, the workpiece to be mounted may be an MPS-245 roller, an MPS-225 roller, or an MPS-245 roller core.

Further, the sliding portion has two symmetrically disposed slide grooves 6, openings of the two symmetrically disposed slide grooves 6 being opposite to each other; specifically, the sliding part is fixedly provided with two strip-shaped sliding grooves which are symmetrically arranged and have semi-closed U-shaped side surfaces, and strip-shaped tracks for sliding of the sliding blocks are arranged in the strip-shaped sliding grooves. The openings of the two semi-closed U-shaped chutes are opposite to each other, namely, when the opening direction of one semi-closed U-shaped chute is towards the left, the opening direction of the other semi-closed U-shaped chute is towards the right. The sliding fit has a horizontal slider, which may be, for example, rectangular in shape. The horizontal slider comprises a first horizontal part and a second horizontal part which are separated by the central line of the horizontal slider and a vertical fin which is vertically fixed on the horizontal slider along the central line of the horizontal slider, namely, the horizontal slider and the vertical fin form a T-shaped structure. The extending direction of the central line of the horizontal slider, namely the extending direction of the vertical fin, extends towards the center of the bottom plate. The first horizontal part and the second horizontal part are respectively arranged in the two U-shaped sliding grooves of the fixed base in a sliding mode.

Specifically, in one embodiment, the base plate 1 is circular in shape.

Specifically, in one embodiment, the number of the fixing bases 2 is four, and the four fixing bases 2 are positioned on the bottom plate 1 in a cross shape (cross-shaped uniform distribution, axial positioning), and an included angle of 90 degrees is formed between every two fixing bases.

As an alternative embodiment, the number of the fixing bases 2 is 3, and an included angle of 120 degrees is formed between every two fixing bases.

In particular, in one embodiment, the number of removable sliding clamping plates 4 is the same as the number of fixed bases 2. That is, when the number of the stationary bases 2 is four, the number of the detachable slide clamping plates 4 is also four. Therefore, each fixing base is provided with one detachable sliding clamping plate 4, a 90-degree included angle is formed between every two fixing bases, and a 90-degree included angle is formed between every two detachable sliding clamping plates 4. The detachable sliding clamping plate 4 has two functions of radial positioning and clamping.

Furthermore, a radial positioning jackscrew 3 is fixedly arranged on the inner side of each fixed base 2 close to the bottom plate; the radial positioning jackscrew 3 comprises a bolt hole fixedly arranged on the fixed base and a bolt in threaded connection with the bolt hole; the top end of the bolt may have a nut. The bolt holes extend horizontally in the radial direction of the base plate towards the centre of the base plate 2.

Further, the length of the bolt is greater than the length of the bolt hole so that when the bolt is tightened, the tip of the bolt abuts on a first side of the vertical fin, and when the tire is installed, a second side of the vertical fin opposite to the first side abuts on the lower side of the inside of the tire to be fixed while the lower end of the tire to be fixed is placed on a second portion of the fixing base 2.

Further, the number of the combination pressing plates 5 is four. Therefore, a 90-degree included angle is formed between every two fixed bases, a 90-degree included angle is also formed between every two combined pressing plates 5, and a 45-degree included angle is formed between every two adjacent fixed bases 2 and the combined pressing plates 5.

Further, each of the composite press plates 5 includes a first vertical pillar detachably mounted on the base plate 1 and a first horizontal press plate fixed to the first vertical pillar by bolts.

Specifically, the height of the first vertical column is greater than the height of the fixing base so that the first horizontal pressing plate abuts from the inside at a height at which the maximum inner diameter of the workpiece to be fixed (e.g., a roll tire) is located.

Further, each combined pressing plate 5 may further include a second vertical upright detachably mounted on the bottom plate and a second horizontal pressing plate fixedly disposed on the second vertical upright, the second vertical upright is disposed on the inner side of the first vertical upright close to the center of the base, and the second horizontal pressing plate overlaps the first horizontal pressing plate. The four combined pressing plates axially fix the roller tires, and can generate strong clamping force to meet the workpiece clamping requirement caused by the deflection of the workbench.

As a specific embodiment, referring to fig. 3 to 4, when installing the tires, for example, MPS-245 and MPS-225 tires, four fixing bases 2 are criss-distributed along the circumference with a diameter of phi 1320, and the MPS-245 tire with a diameter of phi 1900 or the MPS-225 tire with a diameter of phi 1750 can be installed, and the inner ring is provided with four radial positioning screws 3 and four combination pressing plates 5 at an angle of 45 °. The fixed base 2 is provided with the detachable sliding clamping plate 4, the position of the detachable sliding clamping plate 4 is adjusted by the radial positioning jackscrew 3 when the roller tyre is installed, the position is positioned and clamped in an auxiliary manner, and the concentricity is ensured by adopting cross adjustment and the center of the bottom plate, so that the roller tyre is fast and reliable. Four composite platens 5 are additionally used to axially secure the tire.

When the MPS-245 roller tire is installed, the sliding fit part is slid, so that the second side surface of the vertical fin of the sliding fit part is parallel to and contacts with the inner cylindrical surface of the roller tire, and the thrust action is fully exerted through the contact surface; when the MPS-225 roller tire is installed, the inclined plane part with 14 degrees of deflection of the contact surface of the MPS-225 roller tire acts to adapt to the inner conical surface of a workpiece of the model so that the contact surface can fully exert the thrust action.

As another specific embodiment, referring to fig. 5 to 6, when a roll core, for example, MPS-245 roll core is installed, the detachable sliding clamping plate 4 and the combined pressing plate 5 in the above-mentioned overlay welding and clamping composite fixture are detached, the sliding rail serves as an axial positioning surface for mounting the roll core, and a jackscrew serves as a radial positioning and clamping surface, and since the working position is maintained horizontal without displacement, clamping of the combined pressing plate 5 is not required, so that the combined pressing plate 5 can be detached when the roll core is installed.

The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to 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 scope of the claims of the present invention.

Claims

1. The utility model provides a build-up welding dress card composite jig which characterized in that includes: the clamping device comprises a bottom plate (1), a plurality of fixed bases (2) fixedly arranged on the bottom plate, a plurality of detachable sliding clamping plates (4) arranged on the fixed bases, and a plurality of detachable combined pressing plates (5) arranged on the bottom plate (1);

a plurality of fixing bases (2) are uniformly and circumferentially arranged on the bottom plate (1) around the center of the bottom plate (1), each fixing base (2) comprises a first part close to the center of the bottom plate (1) and a second part far away from the center of the bottom plate (1), a sliding part and a sliding fit part are arranged on the first part, and the sliding fit part is configured to slide in the sliding part along the radial direction of the bottom plate (1);

the combined pressing plates (5) are uniformly and circumferentially arranged on the bottom plate (1) around the center of the bottom plate (1), each combined pressing plate (5) extends along the radial direction of the bottom plate (1) and is configured to comprise a horizontal pressing plate for axially fixing a workpiece to be installed, and the combined pressing plates (5) are arranged at intervals with the fixed bases (2).

2. The composite build-up welding and clamping fixture according to claim 1, characterized in that the sliding part has two symmetrically arranged sliding grooves (6), and openings of the two symmetrically arranged sliding grooves (6) are opposite to each other;

the sliding matching part is provided with a horizontal sliding block, the horizontal sliding block comprises a first horizontal part and a second horizontal part which are separated by the central line of the horizontal sliding block and a vertical fin which is vertically fixed on the horizontal sliding block along the central line of the horizontal sliding block, and the first horizontal part and the second horizontal part are respectively and slidably arranged in two sliding grooves (6) of the fixed base.

3. A composite build-up welding and chucking jig according to claim 2, characterized in that the number of the fixing bases (2) is four, and four fixing bases (2) are positioned on the bottom plate (1) in a cross-shaped form.

4. The composite clamp for build-up welding chucking according to claim 3, characterized in that the shape of the base plate (1) is circular;

the number of the detachable sliding clamping plates (4) is the same as that of the fixed bases (2);

the workpiece to be installed comprises an MPS-245 roller tyre, an MPS-225 roller tyre or an MPS-245 roller core.

5. The composite clamp for build-up welding clamping according to claim 2, characterized in that a radial positioning jackscrew (3) is fixedly arranged on the inner side of each fixing base (2) close to the bottom plate;

the radial positioning jackscrew (3) comprises a horizontal bolt hole fixedly arranged on the fixing base and a bolt in threaded connection with the horizontal bolt hole;

the bolt holes extend horizontally in the radial direction of the base plate (1) toward the center of the base plate (1).

6. The composite build-up welding and chucking fixture of claim 5, wherein the bolt has a length greater than a length of the bolt hole such that a tip of the bolt abuts on the first side of the vertical fin when the bolt is tightened.

7. The composite build-up welding and clamping fixture according to claim 1, characterized in that the number of the combined press plates (5) is four.

8. The composite build-up welding and clamping fixture according to claim 1, characterized in that each combined pressure plate (5) comprises a first vertical upright detachably mounted on the base plate (1) and a first horizontal pressure plate fixed on the first vertical upright by bolts.

9. The composite build-up welding and clamping fixture according to claim 8, wherein the height of the first vertical column is greater than the height of the fixing base.

10. The composite build-up welding and clamping fixture according to claim 8, characterized in that each combined pressing plate (5) further comprises a second vertical upright detachably mounted on the bottom plate and a second horizontal pressing plate fixedly arranged on the second vertical upright, the second vertical upright is arranged on the inner side of the first vertical upright close to the center of the base, and the second horizontal pressing plate is overlapped above the first horizontal pressing plate.