CN218633636U - Elastic clamping plate drag hook - Google Patents

Abstract

The utility model provides an elasticity cardboard drag hook, belong to automobile starter technical field, overcome prior art and compressed tightly the problem that the effort of magnet steel at stator housing inner wall is not enough and the assembly precision is low, the characteristic is including horizontal pull rod and perpendicular pull rod, the one end of horizontal pull rod is equipped with the round pin shaft hole, the other end is equipped with the rectangle through-hole, the first half lateral surface of perpendicular pull rod is equipped with the contact inclined plane, in use, install in assembly fixture's hook groove through horizontal pull rod, the outer cone sliding fit of the interior cone that comprises 4 ~ 6 contact inclined planes and assembly fixture bloated piece, the beneficial effects are that simple structure, good cooperation has been realized with assembly fixture, through the dual effect of the downward pressure that assembly fixture bloated piece provided and the outside pulling force that L shape drag hook provided, the effort that firmly bloated tightly at stator housing inner wall needs to the magnet steel has been satisfied, need not coat the glue solution at the magnet steel back and can firmly fix on stator housing's inner wall, fundamentally has prevented droing of magnet steel, and the assembly precision is high.

Description

Elastic clamping plate drag hook

Technical Field

The utility model belongs to the technical field of the automobile starter, in particular to elasticity cardboard drag hook among no auxiliary pole automobile starter stator assembly fixture.

Background

Among the prior art, welded structure's automobile starter stator includes stator housing and sets up auxiliary pole and magnet steel in the casing, and wherein the magnet steel is through elasticity cardboard and auxiliary pole expanded joint inside the casing, and the problem of existence needs to assist utmost point and casing welding together in advance, then through elasticity cardboard with magnet steel and auxiliary pole expanded joint, consequently increased auxiliary pole materials, but also have the risk that the welding auxiliary pole drops. In order to solve the problem, the structure of the stator of the starter without auxiliary pole in the prior art is adopted, so that the auxiliary pole is cancelled, however, the structure of the stator of the starter without auxiliary pole in the prior art is that the magnetic steel of the stator is adhered and connected with the inner wall of the shell through glue, and the magnetic steel of the stator vibrates under the long-term action of electromagnetic force, so that the adhesion is not firm, the stator is easy to fall off, and the stator cannot normally work.

The invention with the application number of CN201810831959.8 discloses a magnetic shoe assembling method for a starter stator assembly, which utilizes an assembling mechanism to position a magnetic shoe (namely magnetic steel) and a stator shell, a pressure mechanism provides pressure during installation, the assembling mechanism comprises a base, an expansion and compression column, a positioning rod and a pressure rod, the expansion and compression column is circumferentially bundled by an elastic element, and a guide column is installed on the base; the pressure rod can slide up and down along the guide post, the bottom end of the pressure rod is provided with a conical head, the inner side surface of the upper end of the expansion pressing block is an inclined plane matched with the conical head, and when the pressure rod is pressed down, the force applied by the conical head expands the expansion pressing block outwards; the cross section of the positioning rod is the same as the shape of a gap between two adjacent left and right magnetic tiles in the stator assembly and is used for positioning the magnetic tiles. As can be seen from reading the specification, the invention has the following problems: firstly, when the magnetic shoe is used specifically, the steps are that glue solution is coated on the back surface of the magnetic shoe; therefore, the invention has the defect that the adhesive liquid loses the viscosity and the magnetic steel is easy to fall off, thereby influencing the quality of the product; secondly, the expansion pressure column is formed by circumferentially bundling and splicing 2-6 expansion pressure blocks through an elastic element, when the expansion pressure blocks reach a set position, magnetic shoes are tightly pressed on a stator shell, glue is coated on the magnetic shoes, and the magnetic shoes and the stator shell are attached, so that the magnetic shoes are kept in a tightly pressed state for several seconds in the fifth step, then a piston rod returns, and under the elastic action of the elastic element, the expansion pressure blocks push a conical head to move upwards and return to an initial position; the elastic element can be a rubber band, if a larger resilience force is required to be provided, a spring can be used, and as can be seen from the description in the paragraph, the problem that the resilience force of the elastic element is insufficient in the use process of the invention, and in the use process, the elasticity of the elastic element can be reduced along with the use, so that the resilience of the expansion block is influenced, the problems that the magnetic shoe is kept in a compressed state for several seconds and the elasticity of the elastic element can be reduced along with the use can be influenced, so that the efficiency of the expansion block for pushing the conical head to move upwards to the initial position can be influenced, and the production efficiency can be influenced. Thirdly, the invention directly applies force downwards through a piston cylinder of the cylinder body, presses the pressure lever from the top end to make the conical head of the pressure lever move downwards, and makes the expansion pressure block expand outwards by overcoming the elasticity of the elastic element; the magnetic shoe is pressed on the stator shell simply through the outer wall of the expansion pressing block; the invention has the problem that the quality of a product is influenced by the swinging of the expansion pressing block in the pressing-down process, and in order to avoid the influence on the product in the process of applying force on one side, the invention can provide external force for expanding the expansion pressing block at two ends by arranging the sliding inclined planes at the upper end and the lower end of the expansion pressing block, so that the two ends of the expansion pressing block can be expanded simultaneously, or further arranging the slide rails on the outer inclined plane of the central boss at equal intervals in the circumferential direction, arranging the slide rails which are symmetrical about the cross section of the expansion pressing block on the expansion pressing block, and matching the slide rails with the slide rails, so that the expansion pressing block can be further limited, and the swinging in the pressing-down process can be prevented. Even if the invention is just to apply force downwards directly through the piston cylinder of the cylinder body, press the compression link from the top, make the upper and lower both ends slip the inclined plane of the pressure link and taper head and frustum-shaped inclined plane of the upper end of central boss of bottom end relatively slip, upper and lower both ends offer the expanded external force for the expanded pressure block, but the said elastic element rubber band or spring of the invention, only offer the resilience force to the expanded pressure block and resume to the initial position, therefore, the invention only presses the magnetic shoe on the outer wall of the expanded pressure block and has far satisfied the need of pressing the magnetic shoe firmly on the stator casing through the acting force of the outer wall of the expanded pressure block, therefore need coat the glue solution on the back of the magnetic shoe; when the expanding and pressing block reaches a set position, the magnetic shoe is pressed on the stator shell to be attached to the stator shell, and the magnetic shoe is kept in a pressed state for several seconds.

The utility model discloses a utility model with application number CN201921827104.4 "an adhesive fixation clamping piece of automobile starter stator magnet steel", however, this utility model does not also have fundamentally to solve this problem that the magnet steel drops easily, and this utility model adopts the technical scheme in the magnet steel also paste on shells inner wall through glue, and in addition, the adhesive fixation clamping piece that is used for fixed magnet steel that sets up between two adjacent magnet steel (be the elasticity cardboard) also adopts the mode that glue pasted to bond on the inner wall of casing. If the glue loses viscosity due to the influence of the factors of the surface cleanliness of the stator shell and the working environment temperature, the magnetic steel can fall off when any one of the magnetic steel and the adhesive fixing clamping piece falls off, and the stator of the automobile starter is scrapped.

The invention with the application number of CN201710685983.0 discloses an assembling method of an expansion starter stator assembly, and an assembling device adopted by the invention comprises a pillar, a sliding sleeve and an expansion mechanism, wherein the expansion mechanism is matched with the sliding sleeve and used for fixing a magnetic shoe (namely magnetic steel) and a magnetic shoe clamp (namely an elastic clamping plate); the support rods in the expansion mechanism are uniformly distributed along the circumferential direction of the central column and can stretch along the radial direction of the central column; during the assembly, earlier magnetic shoe and magnetic shoe press from both sides preassembleing, then put stator housing in the constant head tank, press the assembly through the pressure equipment machine. Although the invention does not need to use colloid for bonding, the invention utilizes the stator shell to extrude the sliding sleeve, namely, the downward pressure is applied to the stator shell through the pressure component, the sliding sleeve slides downwards, and the magnetic shoe clamp are installed into the inner cavity of the stator shell from the bottom along with the downward movement of the stator shell, so that the problem that the stator shell is damaged by a press-fitting machine exists, and the assembling precision of the magnetic shoe and the magnetic shoe clamp is low.

In order to solve the problems, the applicant develops an auxiliary-pole-free automobile starter stator assembly tool, and in the assembly tool, a draw hook is needed to pull and fix an elastic clamping plate on the inner wall of a shell, so that the acting force required for firmly pressing magnetic steel on the inner wall of the shell of a stator is met through the action of the draw hook, the magnetic steel is further firmly fixed on the shell, and the magnetic steel is fundamentally prevented from falling off.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that, overcome prior art's weak point, solve only through the briquetting outer wall that expands and compress tightly the effort of magnet steel on stator housing far away and satisfied not firmly compress tightly the needs on stator housing of magnet steel, therefore will provide an elasticity cardboard drag hook in the no auxiliary pole automobile starter stator assembly fixture at the problem of magnet steel back coating glue solution.

The utility model discloses a technical scheme include horizontal pull rod and perpendicular pull rod the one end of horizontal pull rod is equipped with the round pin shaft hole, is equipped with the rectangle through-hole at the other end of horizontal pull rod, the thickness of the first half of perpendicular pull rod is less than the thickness of the latter half, and the first half lateral surface of perpendicular pull rod is equipped with the contact inclined plane, and the contact inclined plane is alpha with the contained angle of the lateral surface of perpendicular pull rod.

And a first machine shell salient point avoiding groove and a second machine shell salient point avoiding groove are formed in the inner side surface of the vertical pull rod.

The included angle alpha between the contact inclined plane and the outer side surface of the vertical pull rod is 20-25 degrees.

During the use, the utility model discloses a horizontal pull rod is installed in the hook groove of assembly fixture's drag hook seat, and the round pin axle of installation will in through the round pin shaft hole the utility model discloses the cylinder connecting rod fixed connection who is connected with assembly fixture's horizontal cylinder piston rod passes assembly fixture's magnet steel locating lever from the bottom of rectangle through-hole and through assembly fixture's magnet steel locating lever lifting cylinder with magnet steel locating lever rebound reach stator housing in the work height of magnet steel location, by 4 ~ 6 the utility model discloses a contact inclined plane constitutes the outer cone sliding fit of inner cone and assembly fixture's bloated piece, the during operation, the bloated piece that downwards spurs assembly fixture through assembly fixture's lower cylinder provides the external force that expands for L shape drag hook, and the horizontal cylinder through assembly fixture outwards spurs the utility model discloses the horizontal motion provides the power of expanding for L shape drag hook, can expand the elasticity cardboard tightly with the outside pulling to firmly fix the magnet steel on stator housing's inner wall.

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

(1) The utility model provides a need a concrete structure of drag hook among the no auxiliary pole automobile starter stator assembly fixture, and simple structure, realized good cooperation with assembly fixture, by 4 ~ 6 the utility model discloses a contact inclined plane constitutes the outer cone sliding fit of inner cone and assembly fixture's bloated piece, makes assembly fixture both compact, can guarantee assembly fixture's performance again, and the assembly precision is high.

(2) The utility model discloses an assembly fixture expands the outside pulling force dual function that downward pressure and L shape drag hook provided, especially fixes the elasticity cardboard tensioning on casing inner wall through L shape drag hook, has satisfied the firm tight effort that needs at the stator case inner wall that expands of magnet steel, need not firmly fix the magnet steel on the inner wall of stator case at magnet steel back coating glue solution, and fundamentally has prevented droing of magnet steel.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a top view of fig. 2.

In the figure:

1. a pin shaft hole, 2, a horizontal pull rod, 3, a rectangular through hole,

4. a first case bump avoiding groove, 5 a second case bump avoiding groove,

6. a contact inclined plane, 7, a vertical pull rod,

8. rectangular plane, 9 transition slope.

Detailed Description

As shown in fig. 1-3, the utility model discloses a including horizontal pull rod 2 and vertical pull rod 7, be equipped with the pin shaft hole 1 that link up from top to bottom that is arranged in being connected with horizontal cylinder in the assembly fixture in horizontal pull rod 2 one end, be equipped with the rectangle through-hole 3 that link up from top to bottom that is arranged in assembly fixture magnet steel locating lever passes through at the other end of horizontal pull rod 2, be equipped with first casing bump groove 4 and second casing bump groove 5 of dodging at the medial surface of vertical pull rod 7, the thickness of the first half of vertical pull rod 7 is less than the thickness of the latter half, forms a transition inclined plane 9 between them, and the first half lateral surface of vertical pull rod 7 is equipped with contact inclined plane 6, and contact inclined plane 6 is 20 ~ 25 with the contained angle alpha of the lateral surface of vertical pull rod 7, because the thickness of the first half of vertical pull rod 7 is less than the thickness of the latter half and contact inclined plane 6 has contained angle alpha with the lateral surface of vertical pull rod 7, forms a rectangle plane 8 at the top surface of vertical pull rod 7.

During the use, will through horizontal pull rod 2 the utility model discloses install in assembly fixture's drag hook seat's hook groove, pass assembly fixture's magnet steel locating lever from rectangle through-hole 3's bottom and through assembly fixture's magnet steel locating lever lifting cylinder with magnet steel locating lever rebound arrival stator casing in the working height of magnet steel location, will by the interior cone that 4 ~ 6 contact inclined plane 6 constitute and the outer cone contact cooperation of assembly fixture's bloated piece, first casing bump is dodged groove 4 and second casing bump and is dodged groove 5 simultaneously and two upper and lower bump contact cooperations of passing the stator casing inner wall of elasticity cardboard locating hole, then will through the round pin axle in the round pin shaft hole 1 that link up from top to bottom the utility model discloses with assembly fixture's the last cylinder connecting rod fixed connection of being connected of horizontal cylinder piston rod. The during operation, horizontal cylinder through assembly fixture outwards stimulates the utility model discloses horizontal motion can outwards stimulate the elasticity cardboard, expands the elasticity cardboard tightly to firmly fix the magnet steel on the inner wall of stator casing.

Claims (3)

1. The utility model provides an elasticity cardboard drag hook, includes horizontal pull rod (2) and perpendicular pull rod (7), its characterized in that the one end of horizontal pull rod (2) is equipped with round pin shaft hole (1), is equipped with rectangle through-hole (3) at the other end of horizontal pull rod (2), the thickness of the first half of perpendicular pull rod (7) is less than the thickness of the latter half, and the first half lateral surface of perpendicular pull rod (7) is equipped with contact inclined plane (6), and contact inclined plane (6) are alpha with the contained angle of the lateral surface of perpendicular pull rod (7).

2. The elastic snap-plate retractor according to claim 1, wherein the inner side of the vertical pull rod (7) is provided with a first housing salient point avoiding groove (4) and a second housing salient point avoiding groove (5).

3. The elastic snap-gauge draw hook according to claim 1 or 2, characterized in that the angle α between the inclined contact surface (6) and the outer side of the vertical pull rod (7) is 20 ° to 25 °.

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