CN213673838U

CN213673838U - Hole site shifts mark device

Info

Publication number: CN213673838U
Application number: CN202022607076.4U
Authority: CN
Inventors: 李玮; 杨枭; 文明; 李培新; 李俊南; 高志强
Original assignee: Anhui Weineng Motor Co ltd
Current assignee: Anhui Weineng Motor Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-13
Anticipated expiration: 2030-11-11

Abstract

The utility model provides a hole site shifts mark device, including location base block, have on the location base block to fold with the drill way terminal surface of work piece A processed connecting hole an and press complex axial laminating terminal surface, have on the axial laminating terminal surface on the location base block and coincide the radial positioning support arm of pasting with work piece A's processed connecting hole a's pore wall, there is the through-hole at location base block middle part and constitutes the movable fit with the lower extreme for the jumper bar of awl point shape drift, when the jumper bar has the through-hole up-and-down motion for location base block middle part, the rod core of jumper bar and the hollow of work piece A processed connecting hole an arrange with the core. Firstly, a sample piece of a processed connecting hole a is provided, the sample piece can be a standard sample piece, and can also be a workpiece A of the processed connecting hole a, the workpiece A is a component product to be assembled, the hole position of the connecting hole on the workpiece A is in a determined state, mainly the space position of each connecting hole is determined, and the workpiece A is attached to the connecting and combining surface of another workpiece B.

Description

Hole site shifts mark device

Technical Field

The utility model relates to a spare part processing frock, the hole site of the connecting hole of the part of specifically saying so just right frock clamp is ensured with regard to realizing two assemblies.

Technical Field

Two or more parts in the equipment need interconnect, for example the processing of the bolted connection hole on the shaft coupling flange, the connection of motor frame and the end cover at both ends is connected to the shaft coupling promptly, the processing of connecting hole on it is usually that the pincers worker rules on the part, make a taper hole then drill machine drilling processing, in view of the specificity of the shape of two parts of interconnect, like the end cover at motor frame and both ends, so can't carry out the clamping and accomplish drilling processing with both according to the assembly state on the drilling machine usually, the independent processing of the connecting hole on each part is difficult to guarantee the position precision when assembling each other again, bring the difficulty for subsequent assembly connection. How to simply and conveniently realize the position assembly precision of the connecting holes on the two parts which are respectively processed is a difficult problem which cannot be avoided by machining engineers or technicians.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hole site shifts mark device on accurately marking the hole on the part that has already been processed to another part rather than complex.

In order to achieve the above object, the utility model discloses a following technical scheme, a hole site shifts mark device promptly, its characterized in that: the positioning base block is provided with an axial attaching end face which is in laminated fit with the orifice end face of a connecting hole a processed by a workpiece A, the axial attaching end face on the positioning base block is provided with a radial positioning support arm which is matched and attached with the hole wall of the connecting hole a processed by the workpiece A, the middle part of the positioning base block is provided with a through hole which is in movable fit with a punch rod of which the lower end is a conical-pointed punch head, and when the punch rod moves up and down relative to the middle part of the positioning base block, a rod core of the punch rod and a hollow core of the connecting hole a processed by the workpiece A are arranged in the same core.

According to the above technical scheme, at first, a sample piece of a processed connecting hole a is provided, the sample piece can be a standard sample piece, also can be a workpiece A of the processed connecting hole a, the workpiece A is a part product to be assembled, the hole site of the connecting hole on the workpiece A is in a determined state, mainly the spatial position of each connecting hole is determined, the workpiece A is attached to the connecting and combining surface of another workpiece B, the hole site shifter provided by the utility model marks the hole center position transposition of the connecting hole on the workpiece A on another workpiece B, and the drilling processing of the connecting hole B on the workpiece B provides hole core positioning.

The utility model has the advantages of small and exquisite tool, simple use and accurate hole center transposition.

Drawings

FIG. 1 is a cross-sectional structural view of the present invention;

fig. 2 is a perspective view of the positioning base block.

Detailed Description

A hole site shifter comprises a positioning base block 10, wherein an axial attaching end face 11 which is in laminated fit with the hole opening end face of a connecting hole a which is machined by a workpiece A is arranged on the positioning base block 10, a radial positioning support arm 12 which is matched and attached with the hole wall of the connecting hole a which is machined by the workpiece A is arranged on the axial attaching end face 11 on the positioning base block 10, a through hole is formed in the middle of the positioning base block 10 and is in movable fit with a punch 20 of which the lower end is a conical punch 21, and when the punch 20 moves up and down relative to the through hole formed in the middle of the positioning base block 10, a rod core of the punch 20 and a hollow core of the connecting hole a which is machined by the workpiece A are arranged.

The positioning base block 10 may be a sleeve-shaped member, or may be a single-element structure provided in the following preferred embodiment, the former is suitable for the occasion with the same specification and size requirement, and the latter has wide applicability, that is, the occasion with different bore diameter specification can also be used.

Preferably, the positioning base block 10 includes 2 to 5 unit blocks, and each unit block is arranged at intervals along the circumferential direction of the machined connection hole a of the workpiece a. Generally, 3-4 unit blocks are selected, the radial position of the radial positioning support arm 12 on the positioning base block 10 is determined when the radial positioning support arm is matched and attached to the hole wall of the connecting hole a of the workpiece A, the rod core position of the punch 20 matched with the radial positioning support arm is determined, the conical concave hole part punched on the workpiece B by the conical tip when the punch 21 moves downwards is determined, the connecting hole B machined by taking the conical concave hole as positioning guide is always consistent with the hole position requirement of the machined connecting hole a of the workpiece A, the hole core position of each connecting hole B is marked, and the hole position and space relation of each connecting hole B is always consistent with the requirement of being matched with the connecting hole a on the workpiece A.

It should be noted that, when a plurality of connecting holes a are formed in the workpiece a and a plurality of connecting holes B are formed in the workpiece B and need to correspond to each other, the hole site transposition mark provided by the utility model can better embody advantages; for example, the motor base is connected to the end cover, generally, the motor base is connected to the end cover on one side by four bolts, that is, four connection holes a and four connection holes B are drilled in the motor base and the end cover on the corresponding side, first, the end cover, that is, in this embodiment, can be regarded as a workpiece a, and the four connection holes a are machined, and the workpiece a is fixed to the end surface of the motor base, where the motor base can be regarded as a workpiece B, and the punch 21 moves down to mark a punch mark on the workpiece B in the shape of a conical concave hole, and the punch mark can be used to machine the connection holes B on the workpiece B, and the connection holes B are indicated by dotted lines in the drawing.

Preferably, the plunger 20 is inserted into the through hole in the middle of the sleeve 30, the outer circumference of the lower end of the sleeve 30 is a tapered surface 31 with a smaller lower part and a larger upper part, the upper section of the inner wall of the positioning base block 10 or the unit block constituting the positioning base block 10 is an inclined surface or a tapered arc surface 13 matched with the tapered surface of the sleeve 30, and the outer circumference of the radial positioning arm 11 is an arc surface 14 matched with the hole wall of the connecting hole a in curvature.

The outer peripheral surface of the unit block constituting the positioning base block 10 is surrounded by a spring 40.

In general, the spring 40 may be a C-shaped snap spring or a split spring, and the elastic force provided by the spring acts to gather the unit blocks, so that the unit blocks can be conveniently placed into the connecting holes a on the workpiece a, and the unit blocks are also convenient to store when not in use. In the process of moving the sleeve body 30 downwards, the conical arc surface 13 of the upper section of the inner wall of the unit block of the positioning base block 10 is matched with the conical surface part 31 of the sleeve body 30 and is gradually attached to the inner wall of the connecting hole a on the workpiece a to realize radial positioning, namely, the rod core of the punch 20 or the conical tip of the punch 21 is positioned by the hole core of the connecting hole a, so that the mark punched on the workpiece B by the conical tip of the punch 21 is marked by taking the hole core of the connecting hole a as a reference, and the coaxiality precision of the two is high.

The upper equal-diameter section of the sleeve body 30 is arranged at the middle through hole of the upper end cover 50 and is in movable fit with the middle through hole, a plate edge 51 extending downwards is arranged at the periphery of the upper end cover 50, and the upper end of each unit block abuts against the lower plate surface of the upper end cover 50 in the plate edge 51 area.

The arrangement of the upper end cover 50 ensures that all the parts are folded and concentrated when not in use, avoids that all the parts are in a scattered and separated state, and plays a role in restraining, guiding or guiding all the parts when the hole site transposition marks.

Claims

1. A hole site transfer marking device is characterized in that: the punching die comprises a positioning base block (10), wherein an axial attaching end face (11) which is in laminated fit with the orifice end face of a connecting hole a which is machined by a workpiece A is arranged on the positioning base block (10), a radial positioning support arm (12) which is matched and attached with the hole wall of the connecting hole a which is machined by the workpiece A is arranged on the axial attaching end face (11) on the positioning base block (10), a through hole is formed in the middle of the positioning base block (10) and is in movable fit with a punching rod (20) of which the lower end is a conical punching head (21), and when the punching rod (20) moves up and down relative to the middle of the positioning base block (10), the rod core of the punching rod (20) and the hollow core of the connecting hole a which is machined by the workpiece A are.

2. Hole site transfer marking apparatus according to claim 1, wherein: the positioning base block (10) comprises 2-5 unit blocks, and the unit blocks are arranged at intervals along the circumferential direction of the machined connecting hole a of the workpiece A.

3. Hole site transfer marking device according to claim 1 or 2, characterized in that: the punch rod (20) penetrates through the through hole in the middle of the sleeve body (30), the periphery of the lower end of the sleeve body (30) is a cone (31) with a smaller lower part and a larger upper part, the upper section of the inner wall of the positioning base block (10) or a unit block forming the positioning base block (10) is an inclined plane or a cone cambered surface (13) matched with the conical surface part of the sleeve body (30), and the periphery of the radial positioning support arm (12) is a cambered surface (14) with curvature matched with the hole wall of the connecting hole a.

4. Hole site transfer marking device according to claim 3, characterized in that: the peripheral surface of the unit block forming the positioning base block (10) is surrounded by a spring (40).

5. Hole site transfer marking device according to claim 3, characterized in that: the upper equal-diameter section of the sleeve body (30) is arranged at the middle through hole of the upper end cover (50) and is in movable fit with the middle through hole, a plate edge (51) extending downwards is arranged at the periphery of the upper end cover (50), and the upper end of each unit block abuts against the lower plate surface of the upper end cover (50) in the area of the plate edge (51).