CN113560928A

CN113560928A - Tool clamp of motor base

Info

Publication number: CN113560928A
Application number: CN202110701279.6A
Authority: CN
Inventors: 王屹峰; 管华; 邢林林; 沈雅丽; 李志平; 陈童鑫
Original assignee: ANHUI TONGHUA NEW ENERGY POWER CO LTD
Current assignee: ANHUI TONGHUA NEW ENERGY POWER CO LTD
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-10-29

Abstract

The invention provides a tooling fixture for a motor frame. The base includes a cylindrical tailstock and a ring arranged in the same core. The cylindrical tailstock and the ring are respectively fixed with both ends of a support arm. The cylindrical tail The seat and the ring are arranged in the same core, and the area formed by the circumferential direction of the adjacent support arms is provided for the radial displacement of the motor frame A. There is a sliding sleeve in the cylinder cavity of the cylindrical tailstock connected to the motor spindle turntable. , the sliding sleeve and the inner wall of the cylindrical tailstock form an axial displacement guide fit, the sliding sleeve and the ring are respectively constrained and connected to the two ends of the motor base A, and the axial displacement driving mechanism connected with the sliding sleeve drives the sliding sleeve. The sleeve is axially displaced in the cylindrical cavity of the cylindrical tailstock. The invention can not only realize the one-time clamping to complete the processing of the two ends and end faces of the motor base, but also only has the axial displacement of the sliding sleeve during the clamping process, so the clamping efficiency can be significantly improved.

Description

Tool clamp of motor base

Technical Field

The invention relates to a turning tool for a motor base.

Background

At present, an I-shaped spigot of a turning tool for a motor base is clamped and fixed through a spigot at one end and a mounting hole of the base, and after the spigot at one end and an iron core stop are finished by finish turning, the spigot at the other end can be finished by turning around for secondary clamping; the finish turning needs secondary clamping during processing, so that the coaxiality of the rabbets at the two ends and the iron core stop is difficult to ensure; and the spigot die and the spigot of the machine base are in clearance fit, and the coaxiality error can be increased by factors such as deviation or overlarge fit clearance possibly generated during finish turning, so that the quality of the motor is seriously influenced. The Chinese patent document entitled motor casing processing device (No. CN 203679810U) aims at processing motor casings with two end surface rabbets and inner surfaces of the casings at one time so as to improve the coaxiality of the rabbets at two ends and the parallelism of the end surfaces at two ends, as shown in figure 1, the clamping body device provided in the technical scheme comprises two clamping plates (2) and a distance adjusting mechanism, wherein the clamping plates (2) are provided with casing end surface sleeve through sleeves (6), the distance adjusting mechanism is arranged between the two clamping plates (2) and is used for stretching the relative distance between the two clamping plates (2), and the distance adjusting mechanism comprises four adjusting screw rods (3). The main technical defects of the prior art comprise that a constraint area surrounded by four circumferentially distributed adjusting screws (3) cannot realize that a motor base is arranged between two clamping plates (2) from an area between the two adjusting screws (3), so that the clamping process is time-consuming; meanwhile, the constraint force applied to the two ends of the motor base by the clamping plate (2) is realized by screwing nuts at the outer ends of the four adjusting screw rods (3) one by one, so that the uniform stress of the four adjusting screw rods (3) cannot be realized, time and labor are consumed during pre-tightening, and the stability of the motor base is difficult to guarantee.

Disclosure of Invention

The invention aims to provide a tooling fixture of a motor base, which can finish the processing of rabbets at two ends of the base and an iron core stop by one-time clamping, improves the coaxiality of the rabbets at the two ends and the parallelism of two end surfaces, ensures the quality of the motor base to be improved, and simultaneously improves the clamping efficiency and the fixing stability of the motor base.

In order to achieve the purpose, the invention adopts the following technical scheme, and the tool clamp of the motor base is characterized in that: the base includes tube-shape tailstock and the ring that the concentric was arranged, tube-shape tailstock and ring link firmly with the both ends of support arm respectively, tube-shape tailstock and ring arrange with the concentric, the regional power supply motor frame A radial displacement formula that the circumferential direction interval of adjacent support arm constitutes is put into, the section of thick bamboo intracavity of the tube-shape tailstock that links to each other with motor spindle carousel has the sliding sleeve, constitute axial displacement formula guide fit between the section of thick bamboo intracavity wall of sliding sleeve and tube-shape tailstock, sliding sleeve and ring restraint respectively are connected at motor frame A's both ends, the axial displacement actuating mechanism drive sliding sleeve that links to each other with the sliding sleeve is at the section of thick bamboo intracavity axial displacement of tube-shape tailstock.

In the technical scheme, the base is a cylindrical tailstock with a ring at the head end and a cylindrical tailstock at the tail end, the two parts are arranged in a same core mode and are connected through support arms to form a rigid tubular body, the ring and an open area between the cylindrical tailstock and the support arms ensure that the motor base is guided in and fixed in the space area between the ring and the cylindrical tailstock and the support arms, the axial displacement driving mechanism drives the sliding sleeve to axially displace in a cylinder cavity of the cylindrical tailstock, the motor base is axially limited between the sliding sleeve and the ring, the motor base synchronously rotates along with the rotation of the base driven by a lathe turntable, and a cutting tool can reach the cavity of the sliding sleeve during axial displacement, so that the cutting tool can finish cutting of the end face and the spigot part of one end, close to the cylindrical tailstock, of the motor base. The invention can not only realize one-time clamping to finish the processing of the rabbets and the end faces at the two ends of the motor base, but also only realize the axial displacement action of the sliding sleeve in the clamping process, thereby obviously improving the clamping efficiency.

Drawings

FIG. 1 is a schematic diagram of a prior art solution;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is an exploded view of the present invention.

Detailed Description

Referring to fig. 1, 2 and 3, a fixture for a motor base is shown, in which a base 10 includes a cylindrical tailstock 11 and a ring 12 which are arranged concentrically, the cylindrical tailstock 11 and the ring 12 are respectively and fixedly connected to two ends of a support arm 13, the cylindrical tailstock 11 and the ring 12 are arranged concentrically, a region formed by circumferential direction intervals of adjacent support arms 13 is used for radial displacement type insertion of the motor base a, a sliding sleeve 20 is arranged in a cylinder cavity of the cylindrical tailstock 11 connected to a motor spindle turntable, an axial displacement type guiding fit is formed between the sliding sleeve 20 and an inner wall of the cylinder cavity of the cylindrical tailstock 11, the sliding sleeve 20 and the ring 12 are respectively constrained and connected to two ends of the motor base a, and an axial displacement driving mechanism connected to the sliding sleeve 20 drives the sliding sleeve 20 to axially displace in the cylinder cavity of the cylindrical tailstock 11.

The so-called radial displacement type embedding of the area power supply motor base A formed by the circumferential direction interval of the adjacent support arms 13 comprises two dimensional limitation requirements, one is that the axial distance between the cylindrical tailstock 11 and the ring 12 is larger than the axial dimension of the motor base A, which is the basis; on the other hand, on the basis, the open areas formed by the circumferential direction interval arrangement of the adjacent support arms 13 have enough opening degree, namely, the opening degree is larger than the minimum size of the radial direction of the motor base A, so that the motor base A is placed into the base 10 from the open area between the adjacent support arms 13. The above-described solution ensures that the base 10 is a rigid body with reliable strength and rigidity. When the axial displacement driving mechanism drives the sliding sleeve 20 to axially displace in the cylinder cavity of the cylindrical tailstock 11, the motor base A is reliably axially limited between the sliding sleeve 20 and the ring 12, and the radial core positioning is completed while the axial limiting is performed, so that the improvement of the processing precision is guaranteed.

In order to ensure that the rigidity and the strength of the base 10 are simultaneously met, the motor base A is placed into the base 10 from an open area between adjacent support arms 13, preferably, the number of the support arms 13 is 2-3, and the contour of each support arm 13 on the cross section perpendicular to the axial direction is arc-shaped and is matched with the arc-shaped contour of the ring 12. When 3 support arms 13 are symmetrically arranged, the three support arms 13 are not strictly required to be arranged at equal radian intervals in the circumferential direction, the support arms 13 on two sides can be symmetrical relative to one support arm 13 between the two support arms, and the aim is to cover enough opening degree between two adjacent support arms 13 so as to lead the motor base in.

More preferably, the number of the support arms 13 is 2, so that the stress can be distributed symmetrically, and the sufficient opening degree between the support arms 13 can be ensured.

After the base 10 is machined, the sizes of the ring 12 on the base and the sliding sleeve 20 matched with the cylindrical tailstock 11 are determined, the sliding sleeve 20 and the ring 12 are directly used for restraining and fixing the motor base A, the specification, namely the specific size of the motor base A is also determined, so that only one specification of the motor base A can be clamped, and the applicability of the clamping fixture is limited; in order to improve the universality of the base 10, the invention can improve the universality by adding the preferred scheme of the left and right spigot

annular dies

30a and 30b, and the specific schemes are as follows:

the first, the left, the right

spigot ring mould

30a, 30b are respectively clamped at the two ends of the motor base A, the left spigot ring mould 30a is connected with the core at the outer end face of the sliding sleeve 20, the right spigot ring mould 30b is connected with the core at the inner end face of the ring 12.

The left spigot ring die 30a and the right spigot ring die 30b are respectively clamped at the process step A1 machined by the outer circles of the base lug lugs at the two ends of the motor base A, so that the axial limiting and radial core fixing matching of the motor base A is formed.

The second, the left and the right

spigot ring moulds

30a, 30b are respectively clamped at two ends of the motor base A, the left spigot ring mould 30a is concentrically connected at the outer end face of the sliding sleeve 20, and the right end face of the right spigot ring mould 30b is concentrically arranged with the ring 12 and forms abutting or separating matching.

Of course, it is also possible that the left spigot ring die 30a and the slide tube 20, and the right spigot ring die 30b and the ring 12 are only in a plug-fit relationship and are not connected to each other. Most preferably, the first scheme is that the left and right spigot

annular dies

30a and 30b are respectively connected with the ring 12 in a detachable manner by the sliding sleeve 20, so that the left and right spigot

annular dies

30a and 30b with different specifications can be selected to be matched and restricted with the motor base A with corresponding specifications. During clamping, only the process step A1 on the outer circle of the lug of the end part A of the motor base is required to be clamped with the left spigot annular die 30a and the right spigot annular die 30b, so that the clamping efficiency and the radial core-fixing precision are improved.

The inner end of the sliding sleeve 20 is provided with a sleeve bottom 21, the middle part of the sleeve bottom 21 is connected with the rod end of a piston rod 41 of a cylinder 40 forming an axial driving mechanism, the piston rod 41 and the sliding sleeve 20 are arranged concentrically, and the cylinder 40 is connected with the inner end of a cylindrical tail seat 11 of the base 10.

The inner end of the cylindrical tailstock 11 is provided with a detachably connected cylindrical bottom plate 111, and the cylinder 40 is connected to the cylindrical bottom plate 111.

The scheme is favorable for arranging the air source joint in the middle of the cylinder cover at the tail end of the air cylinder 40 and realizing the connection and air supply of the rotary type pipe joint.

The sliding sleeve 20 may be driven to move axially by a lead screw-nut mechanism.

It should be noted that the expressions of the left, right, inside, outside, and the like are defined by the orientations of the states shown in the drawings, and the inside or the inside end can be understood as the inside near the left side and the outside near the right side.

When the motor base A is machined, a process step A1 is machined on the outer circle of the lug of the base, the process step A1 is positioned and installed with the left and right spigot

annular dies

30a and 30b, the sliding sleeve 20 is driven by the air cylinder 40 to axially and outwardly displace, so that the motor base A is restrained and fixed between the left and right spigot

annular dies

30a and 30b, a cutter can finish all finish turning procedures in a clamping state, the coaxiality of spigots at two ends of the base and an iron core stop and the parallelism of two end faces are effectively improved, and the quality of the motor is improved.

Claims

1. A fixture for a motor frame, characterized in that: the base (10) comprises a cylindrical tailstock (11) and a ring (12) arranged concentrically, the cylindrical tailstock (11) and the ring ( 12) They are respectively fixedly connected with both ends of the support arm (13), the cylindrical tailstock (11) and the ring (12) are arranged in the same core, and the circumferential direction of the adjacent support arms (13) is formed at intervals. The regional power supply motor base A is radially displaced, and the cylindrical tailstock (11) connected to the motor spindle turntable has a sliding sleeve (20) in the cylinder cavity, and the sliding sleeve (20) is connected to the cylindrical tailstock (11). Axial displacement guide fit is formed between the inner walls of the cylinder cavity of the motor, the sliding sleeve (20) and the ring (12) are respectively restrained and connected to the two ends of the motor base A, and the axial displacement driving mechanism connected with the sliding sleeve (20) drives the The sliding sleeve (20) is axially displaced in the cylindrical cavity of the cylindrical tailstock (11).

2 . The tooling fixture of the motor base according to claim 1 , wherein 2 to 3 support arms ( 13 ) are symmetrically arranged, and the cross section of the support arms ( 13 ) is perpendicular to the axial direction. 3 . The upper de contour is arc-shaped and the arc-shaped contour matches the arc-shaped contour of the ring (12).

3 . The tooling fixture of the motor base according to claim 2 , wherein two supporting arms ( 13 ) are symmetrically arranged. 4 .

4. The fixture of the motor frame according to claim 2 or 3, characterized in that: the left and right end stop ring die (30a, 30b) are respectively clamped at both ends of the motor frame A, and the left end stop ring The die (30a) is concentrically connected at the outer end face of the sliding sleeve (20), and the right end-stop annular die (30b) is coaxially connected at the inner end surface of the ring (12).

5. The fixture of the motor frame according to claim 2 or 3, characterized in that: the left and right end stop ring die (30a, 30b) are respectively clamped at both ends of the motor frame A, and the left end stop ring The die (30a) is concentrically connected at the outer end surface of the sliding sleeve (20), and the right end surface of the right-slip annular die (30b) is coaxially arranged with the ring (12) and forms abutment or separation fit.

6. The tooling fixture of the motor frame according to claim 4 or 5, characterized in that: the inner end of the sliding sleeve (20) is provided with a sleeve bottom (21), and the middle part of the sleeve bottom (21) is connected with the axial drive mechanism. The rod ends of the piston rod (41) of the air cylinder (40) are connected and the piston rod (41) and the sliding sleeve (20) are arranged concentrically, and the air cylinder (40) is connected to the cylindrical tailstock (11) of the base (10). inside.

7. The tooling fixture of the motor base according to claim 6, characterized in that: the inner end of the cylindrical tailstock (11) is provided with a detachable connection cylinder bottom plate (111), and the cylinder (40) is connected to the cylinder bottom plate (111) on.