CN217071474U

CN217071474U - Assembly part bush reaming and detecting device

Info

Publication number: CN217071474U
Application number: CN202220513337.2U
Authority: CN
Inventors: 陈刚; 舒晓君; 徐红彦; 苗奎; 赵章民; 秦康; 冯大鹏; 刘富辉
Original assignee: AVIC Landing Gear Advanced Manufacturing Corp
Current assignee: AVIC Landing Gear Advanced Manufacturing Corp
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-29
Anticipated expiration: 2032-03-09

Abstract

The utility model provides an assembly part bush reaming and detection device. The assembly part bushing reaming and detecting device comprises a fixture base plate, a side jacking plate, a measuring mechanism assembly, a measuring reference block, a positioning support assembly and a reamer guiding support, wherein the measuring mechanism assembly and the measuring reference block are arranged on one side in the X direction, and the measuring mechanism assembly is in contact with the end face of the measuring reference block; the reamer guide support is arranged on the other side in the X direction and forms a first machining area; the positioning support assembly is located between the measuring reference block and the reamer guide support, the side jacking plate is located on the side of the positioning support assembly, a clamping area is formed between the side jacking plate and the positioning support assembly, and a second machining area is arranged on the side, close to the reamer guide support, of the measuring mechanism assembly. The utility model discloses realize product processing under the part non-pressure tight state, guarantee product space size and geometric tolerances requirement, realize product processingquality's stability.

Description

Assembly part bush reaming and detecting device

Technical Field

The utility model relates to a numerical control processing and reaming processing technology field especially relate to an assembly part bush reaming and detection device.

Background

According to the structure of an aviation product, parts marked with space dimensions and form and position tolerances are generally processed and guaranteed by numerical control equipment, and clamping tools adopted for processing are easy to compress, deform, align errors and other factors of the parts, so that the conditions that the space dimensions and the form and position tolerances are unstable to control are certainly caused, and the main factors causing the problem of the processing quality of the product are provided. Secondly, most of enterprise numerical control equipment is in short supply, the equipment capability is far from meeting the product delivery, and machine tool resources are often excessively occupied due to the dependence of space size and form and position tolerance parts on locomotives.

Furthermore, the existing assembly part bushing hole is generally bored, and boring causes the deviation of the central axis of the bushing hole and the axis of the base body hole, affects the uniformity of the wall thickness of the assembly part bushing, and affects the assembly quality and the service performance of a product.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assembly part bush reaming and detection device can realize that part product geometric tolerances and space dimensions processing are qualified and stable in quality.

The technical scheme of the utility model is that: the assembly part bushing reaming and detecting device comprises a clamp base plate and is characterized by further comprising a side jacking plate, a measuring mechanism assembly, a measuring reference block, a positioning support assembly and a reamer guiding support which are arranged on the clamp base plate, wherein the measuring mechanism assembly and the measuring reference block are arranged on one side of the clamp base plate in the X direction, and in the Y direction, the measuring mechanism assembly is in contact with the end face of the measuring reference block; the reamer guide support is arranged on the other side of the fixture base plate in the X direction, and two reamer guide supports are oppositely arranged in the Y direction at intervals to form a first processing area; the positioning support assembly is located between the measuring reference block and the reamer guide support, the side jacking plate is located on the side of the positioning support assembly in the Y direction, a clamping area is formed between the side jacking plate and the positioning support assembly, and a second machining area is arranged on the side, close to the reamer guide support, of the measuring mechanism assembly.

Preferably, a plurality of threaded holes are vertically arranged on the side jacking plates, bolts are mounted on part of the threaded holes, and the bolts stretch towards the clamping area.

Preferably, a reference surface a is provided on a side of the measurement reference block facing the measurement mechanism assembly.

Preferably, the measuring mechanism subassembly includes the bearing rod, measures support, percentage table, table pole and conversion and presss from both sides, the bearing rod level is installed rotatably on measuring the support, the conversion clamp is located on the end of bearing rod, the vertical connection of table pole is in on the conversion clamp, and the bottom of table pole is equipped with the percentage table.

Preferably, a roller bearing is arranged between the bearing rod and the measuring bearing.

Preferably, the positioning support assembly comprises a positioning mandrel and a positioning support, the positioning support has two vertical walls to form a U shape, and the positioning mandrel passes through the two vertical walls.

Preferably, the reamer guide support comprises a base and a guide sleeve arranged on the base, and a guide hole for the reamer to pass through is formed in the guide sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

firstly, product processing is realized under the condition that parts are not pressed tightly, the requirements of product space size and form and position tolerance are ensured, errors such as clamping deformation of products in the traditional processing process are eliminated, and the stability of product processing quality is realized;

secondly, a space dimension real-time measuring mechanism is ingeniously designed, whether the height of a product processing surface is equal to that of a measuring reference surface or not is identified through a rotating dial indicator measuring head of the measuring mechanism, the machining allowance of the product processing surface is detected through the jumping quantity of the measuring head, and the technical breakthrough of manual reaming on space dimension processing and real-time monitoring is realized;

and thirdly, skillfully utilizing the parallelism principle, reasonably designing a positioning reference, a positioning mode and a positioning element, and realizing the control of the parallelism of the product before processing.

Drawings

Fig. 1 is a schematic structural view of an assembly member bushing reaming and detecting device provided by the present invention;

FIG. 2 is a schematic structural view of the side riser of FIG. 1;

FIG. 3 is a schematic structural view of the measuring mechanism assembly of FIG. 1;

FIG. 4 is a schematic structural view of the positioning pedestal assembly of FIG. 1;

FIG. 5 is a schematic view of the reamer guide mount of FIG. 1;

fig. 6 is a schematic view of the assembly bushing reaming and detecting device according to the present invention during operation.

In the drawings: 1. side top vertical plates; 2. a fixture base plate; 3. a measuring mechanism assembly; 4. measuring a reference block; 5. a workpiece; 6. positioning the support assembly; 7. a reamer guide support; 8. cushion blocks; 10. a first processing zone; 11. a clamping area; 12. a second processing zone; 13. a threaded hole;

3-1, bearing rods; 3-2, measuring a support; 3-3, a dial indicator; 3-4, a gauge rod; 3-5, a conversion clamp; 3-6, roller bearings; 6-1, positioning a mandrel; 6-2, positioning a support; 7-1, a base; 7-2 and a guide sleeve.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.

As shown in fig. 1, the assembly bushing reaming and detecting device provided by this embodiment includes a side jacking plate 1, a fixture base plate 2, a measuring mechanism assembly 3, a measuring reference block 4, a positioning support assembly 6, a reamer guide support 7, and a spacer block 8.

And a plurality of T-shaped grooves are arranged transversely and longitudinally on the fixture base plate 2 to install the side jacking plate 1, the measuring mechanism assembly 3, the measuring reference block 4, the positioning support assembly 6 and the reamer guide support 7 on the fixture base plate. And the fixture base plate 2 is provided with an X axis and a Y axis which are vertical to each other on the same overlooking projection plane.

The measuring mechanism assembly 3 and the measuring reference block 4 are arranged on one side of the X direction of the fixture base plate 2, and in the Y direction, the measuring mechanism assembly 3 is in contact with the end face of the measuring reference block 4. The reamer guide support 7 is disposed on the other side of the fixture base plate 2 in the X direction, and two first machining areas 10 are formed in the Y direction at intervals in an opposing manner. The positioning support assembly 6 is located between the measuring reference block 4 and the reamer guide support 7, the side jacking plate 1 is located beside the positioning support assembly 6 in the Y direction, and a clamping area 11 is formed between the side jacking plate 1 and the positioning support assembly 6. And a second machining area 12 is arranged on the side of the measuring mechanism component 3 close to the reamer guide support 7.

As shown in fig. 1 and 2, the side top plate 1 is an L-shaped plate, and the bottom of the side top plate is provided with an insertion block inserted into a T-shaped groove on the fixture base plate 2. A plurality of threaded holes 13 are vertically arranged on the side jacking plates 1, two threaded holes 13 are arranged in a group in the X direction, and bolts 14 are installed on the threaded holes 13 in one group. The bolt 14 is extended and retracted towards the clamping area 11 to abut against the side wall of the workpiece 5 by the bolt head (as shown in fig. 6).

As shown in fig. 1 and 3, the measuring mechanism assembly 3 comprises a bearing rod 3-1, a measuring support 3-2, a dial indicator 3-3, an indicator rod 3-4 and a conversion clamp 3-5, wherein the bearing rod 3-1 is horizontally and rotatably mounted on the measuring support 3-2, and a roller bearing 3-6 is arranged between the bearing rod 3-1 and the measuring support 3-2. The conversion clamp 3-5 is arranged at the tail end of the bearing rod 3-1, the meter rod 3-4 is vertically connected to the conversion clamp 3-5, and the dial indicator 3-3 is arranged at the bottom of the meter rod 3-4. The conversion clamp 3-5 is a cross conversion clamp so as to be capable of simultaneously installing a bearing rod 3-1 which is horizontally arranged and a meter rod 3-4 which is vertically arranged.

The bottom of the measuring support 3-2 is provided with a bolt hole, and the measuring mechanism assembly 3 is installed on a T-shaped groove of the clamp foundation plate 2 through a bolt.

As shown in fig. 1, the measurement reference block 4 is provided with a bottom plate (not numbered) attached to the fixture base plate 2, and a reference plate (not numbered) is vertically provided on the bottom plate, and a reference surface a is provided on one side of the reference plate facing the dial indicator 3-3. The bottom of the bottom plate is provided with an inserting block with the same specification as that of the bottom of the side top vertical plate 1.

As shown in fig. 1 and 4, the positioning support assembly 6 comprises a positioning mandrel 6-1 and a positioning support 6-2, the positioning support 6-2 has two vertical walls (not numbered) to form a U shape, and the positioning mandrel 6-1 passes through the two vertical walls.

As shown in fig. 1 and 5, the reamer guide holder 7 includes a base 7-1 and a guide sleeve 7-2 disposed on the base 7-1, and the guide sleeve 7-2 is provided with a guide hole for the reamer to pass through. And the base 7-1 is provided with a through hole which is fixed with the T-shaped groove by a bolt.

As shown in fig. 4 and 5, the bottom of the positioning support assembly 6 and the bottom of the reamer guide support 7 are provided with insertion blocks which are inserted into T-shaped grooves on the fixture base plate 2.

As shown in fig. 1 and 6, the workpiece 5 is similar to a triangle, and the bottom edge of the workpiece is provided with a shaft hole, and the top angle of the workpiece is a bush to be processed. The positioning mandrel 6-1 of the positioning support assembly 6 is firstly inserted through the shaft hole of the workpiece 5 and fixed on the positioning support 6-2, thereby limiting the freedom of spatial movement of the workpiece 5. The positioning support assembly 6 is fixed in the clamping area 11.

And (3) taking the axial lead L on the positioning support assembly 6 as a reference, detecting, adjusting and installing the reamer guide support 7 through a numerical control device, installing the reamer guide support on a T-shaped groove on the included angle foundation plate 2 at a proper position according to the center distance H of the workpiece 5 and pressing the reamer guide support, and ensuring that the axial lead L on the positioning mandrel 6-1 of the positioning support assembly 6 is parallel to the axial lead L1.

The bushing is placed in the first machining zone 10 between the two reamer guide seats 7, abutting the side wall of the workpiece 5 by means of the adjusting bolt 14 on the right of the set of adjusting bolts 14. And in order to ensure that the bushing hole C is coaxial with the guide hole, a cushion block 8 is arranged at the bottom of the workpiece 5.

And (3) penetrating the special reamer through the guide hole of the guide sleeve 7-2 to enable the special reamer to extend into the first machining area 10, and finishing the rough and fine reaming of the lining hole C of the workpiece 5 through the guide of the guide sleeve 7-2. The method for processing the bushing hole has the advantages that the bushing hole is good in size consistency and strong in size stability, and meanwhile, the size requirements of the parallelism and the center distance H of the central axis L1 and the axis L of the processed bushing hole C are met.

After the machining of the bush hole C is completed, the workpiece 5 is rotated to the left along the axial line L to be positioned in the second machining region 12, and at this time, the left bolt heads of the group of bolts 14 abut against the side wall of the workpiece 5, whereby the machining and detection of the bush end face B are performed on the workpiece 5.

The method specifically comprises the following steps: the measuring reference block 4 is installed at a proper position of the fixture base plate 2, and meanwhile, the installation position of the measuring reference block is detected and adjusted through numerical control equipment, so that the reference surface A on the measuring reference block 4 is parallel to the end surface B of the bush of the workpiece 5 and has the same height, the parallelism is 0.02, the distance is W1(W1 is a space dimension value required by a product drawing), and the measuring reference block 4 is pressed tightly.

And installing the measuring mechanism component 3 at a proper position of the fixture base plate 2 and fixing to enable a pointer of a dial indicator 3-3 on the measuring mechanism component 3 to contact a datum plane A on the fixture base plate 2.

And (5) rotating the workpiece 5 with the bushing hole C to the left, and machining the bushing end face B by using an end face countersink in the second machining area 12. During the processing, the bearing rod 3-1 is rotated, the pointer of the dial indicator 3-3 in the rotating process is contacted with the reference surface A and the end surface B of the bush, and the processing amount of the W2 size is determined by observing the jumping amount of the pointer of the dial indicator 3-3: when the runout amount is 0, that is, W1 ═ W2 indicates that the bush end face B is finished and meets the drawing size requirements.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The reaming and detecting device for the assembly part bushing comprises a clamp foundation plate (2) and is characterized by further comprising a side jacking plate (1), a measuring mechanism assembly (3), a measuring reference block (4), a positioning support assembly (6) and a reamer guide support (7) which are arranged on the clamp foundation plate (2), wherein the measuring mechanism assembly (3) and the measuring reference block (4) are arranged on one side of the clamp foundation plate (2) in the X direction, and in the Y direction, the measuring mechanism assembly (3) is in contact with the end face of the measuring reference block (4); the reamer guide support seats (7) are arranged on the other side of the fixture base plate (2) in the X direction, and two first machining areas (10) are oppositely arranged in the Y direction at intervals; the positioning support assembly (6) is located between the measuring reference block (4) and the reamer guide support (7), the side jacking plate (1) is located beside the positioning support assembly (6) in the Y direction, a clamping area (11) is formed between the side jacking plate (1) and the positioning support assembly (6), and a second machining area (12) is arranged on the side, close to the reamer guide support (7), of the measuring mechanism assembly (3).

2. The fitting part bushing reaming and detecting device according to claim 1, characterized in that a plurality of threaded holes (13) are vertically arranged on the side jacking plates (1), wherein bolts (14) are installed on some of the threaded holes (13), and the bolts (14) extend and retract towards the clamping area (11).

3. A fitting assembly bushing reaming and testing device according to claim 1, characterized in that the side of the measuring reference block (4) facing the measuring organ component (3) is provided with a reference surface a.

4. The fitting bush reaming and detecting device according to claim 1, characterized in that the measuring mechanism assembly (3) comprises a bearing rod (3-1), a measuring support (3-2), a dial indicator (3-3), a gauge rod (3-4) and a conversion clamp (3-5), the bearing rod (3-1) is horizontally and rotatably mounted on the measuring support (3-2), the conversion clamp (3-5) is arranged on the end of the bearing rod (3-1), the gauge rod (3-4) is vertically connected on the conversion clamp (3-5), and the dial indicator (3-3) is arranged at the bottom of the gauge rod (3-4).

5. A fitting bush reaming and detection device according to claim 4, characterised in that a roller bearing (3-6) is arranged between the bearing rod (3-1) and the measuring bearing (3-2).

6. A fitting bush reaming and testing device according to claim 1, characterized in that the positioning abutment assembly (6) comprises a positioning mandrel (6-1) and a positioning abutment (6-2), the positioning abutment (6-2) having two vertical walls to form a U-shape, the positioning mandrel (6-1) passing through both of the vertical walls.

7. The fitting assembly bushing reaming and detecting device according to claim 1, characterized in that the reamer guide holder (7) comprises a base (7-1) and a guide sleeve (7-2) arranged on the base (7-1), the guide sleeve (7-2) being provided with a guide hole for the reamer to pass through.