CN214556848U - Bearing bush shaping and positioning tool - Google Patents

Abstract

The utility model discloses an axle bush plastic location frock, including the base and can dismantle the first riser and the second riser of being connected with the base, first riser and second riser set up relatively and both intervals are adjustable, form the space of holding axle bush between first riser and the second riser, divide face contact cooperation in first riser and the axle bush, second riser and axle bush excircle middle part contact cooperation. The half-bush-state bearing bush roundness correction device is simple in structure and good in universality, and can guarantee the bearing bush roundness when the free elasticity of the bearing bush in the half-bush state is corrected in a cold state.

Description

Bearing bush shaping and positioning tool

Technical Field

The utility model relates to an axle bush plastic, concretely relates to axle bush plastic location frock.

Background

The inherent large free spring amount of the large bearing bush enables the actual shape of the large bearing bush to be greatly different from a standard semicircle when the large bearing bush is in a half-bush state, so that the arc length of the bearing bush is difficult to control when the large bearing bush is in the half-bush state, and the bearing bush is generally required to be shaped. The existing shaping process needs to be provided with a specific shaping module, for example, a bearing bush radius high-free broaching device disclosed in CN103785722A and an elastic die device for shaping a flanged bearing bush disclosed in CN202367050U both adopt a shaping die with a specific size to shape the bearing bush, and have the disadvantages of complex structure, high process difficulty and no universality.

Disclosure of Invention

The utility model aims at providing a bearing bush plastic location frock, its simple structure, the commonality is good, when half tile state bearing bush free elasticity tensor is corrected to the cold state, can guarantee the bearing bush circularity.

Axle bush plastic location frock, including the base and can dismantle first riser and the second riser of being connected with the base, first riser and second riser set up relatively and both intervals are adjustable, form the space of holding axle bush between first riser and the second riser, divide face contact cooperation in first riser and the axle bush, second riser and axle bush excircle middle part contact cooperation.

Furthermore, a cushion block is fixed on the base and located between the first vertical plate and the second vertical plate, and the top surface of the cushion block is in contact fit with the lower end of the outer circle of the bearing bush.

Further, the base is at least provided with a first slide rail, and the first vertical plate and the second vertical plate are respectively connected with the first slide rail in a sliding mode through the L-shaped structural part.

Further, L type structure includes diaphragm and riser, the diaphragm downside is fixed with and corresponds complex slider with first slide rail, the second slide rail on the riser, first riser or second riser can follow the second slide rail and reciprocate.

Further, one of the transverse plate and the base is provided with a strip-shaped guide hole, the other one of the transverse plate and the base is fixed with a guide block correspondingly matched with the strip-shaped guide hole, and the direction of the strip-shaped guide hole is the same as the direction of adjusting the distance between the first vertical plate and the second vertical plate.

Furthermore, two end faces of the first vertical plate and the second vertical plate in the horizontal direction can be detachably connected with a baffle, and the baffle can limit the displacement of the bearing bush in the horizontal direction.

When the device works, firstly, the distance between the first vertical plate and the second vertical plate is adjusted to be equal to the radius of the standard bearing bush, the bearing bush to be shaped is arranged between the first vertical plate and the second vertical plate, the lower end of the excircle of the bearing bush to be shaped is abutted against the first vertical plate, and the middle part of the excircle of the bearing bush to be shaped is abutted against the second vertical plate; and applying pressure to the upper end of the outer circle of the bearing bush to be shaped so that the outer diameter of the bearing bush to be shaped is shortened to be the same as that of the standard bearing bush.

Compared with the prior art, the utility model following beneficial effect has.

1. The utility model discloses simple structure, the interval through first riser and second riser is injectd and is treated plastic axle bush radius height, and when having avoided the compression to treat the plastic axle bush external diameter, the condition that the radius height is greater than the regional external diameter of mid-split has appeared, has guaranteed the axle bush circularity requirement. And after the bearing bush to be shaped is subjected to sufficient cold extrusion, the shape is more stable, and the overrun of free elastic tension is effectively avoided.

2. The utility model discloses first riser and second riser interval are adjustable, and then this frock can be suitable for not unidimensional axle bush plastic, and the commonality is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic diagram of the operation of the present invention;

fig. 3 is a schematic structural view of a bearing shell.

In the figure, 1-base, 2-first riser, 3-second riser, 4-axle bush, 5-cushion, 6-diaphragm, 7-riser, 8-guide block, 9, baffle, 10-via hole, 11-first slide rail, 12-bar guiding hole, 13-second slide rail.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1, the bearing bush shaping and positioning tool comprises a base 1, and a first vertical plate 2 and a second vertical plate 3 which are detachably connected with the base 1, wherein the first vertical plate 2 and the second vertical plate 3 are oppositely arranged, the distance between the first vertical plate 2 and the second vertical plate 3 is adjustable, a space for accommodating a bearing bush 4 is formed between the first vertical plate 2 and the second vertical plate 3, the first vertical plate 2 is in contact fit with the middle part of the bearing bush 4, and the second vertical plate 3 is in contact fit with the middle part of the excircle of the bearing bush 4. Because first riser 2 and 3 intervals of second riser are adjustable, and then this frock can be suitable for the axle bush plastic of different sizes, can cover all axle bush plastic of diameter 200~5000mm within range, and the commonality is good.

In order to avoid the direct contact between the bearing bush 4 and the base 1 and ensure that the bearing bush 4 is positioned between the first vertical plate 2 and the second vertical plate 3, a cushion block 5 is fixed on the base 1, the cushion block 5 is positioned between the first vertical plate 2 and the second vertical plate 3, and the top surface of the cushion block 5 is in contact fit with the lower end of the excircle of the bearing bush 4.

The base 1 is provided with two parallel first slide rails 11, the first vertical plate 2 and the second vertical plate 3 are respectively connected with the first slide rails 11 in a sliding mode through L-shaped structural parts, and each L-shaped structural part comprises a transverse plate 6 and a vertical plate 7. The first slide rail 11 is an inverted T-shaped groove, a T-shaped bolt correspondingly matched with the first slide rail 11 is fixed on the transverse plate 6, and when the transverse plate moves in place, a locking nut is screwed down to fix the transverse plate 6 on the base 1. Second slide rail 13 on riser 7, second slide rail 13 is for running through the bar through-hole of riser 7 both sides face, be equipped with bar via hole 10 on first riser 2 or the second riser 3, adopt the bolt to pass bar through-hole and bar via hole 10 threaded connection nut. First riser 2 or second riser 3 can reciprocate along second slide rail 13, and the adjustment back that targets in place screws up the nut with first riser 2 or second riser 3 and riser 7 fixed connection.

The base 1 is provided with a strip-shaped guide hole 12, the transverse plate 6 is fixedly provided with a guide block 8 correspondingly matched with the strip-shaped guide hole 12, and the direction of the strip-shaped guide hole 12 is the same as the direction of adjusting the distance between the first vertical plate 2 and the second vertical plate 3. The guide block 8 and the strip-shaped guide hole 12 are matched to play a role in guiding, and the accuracy of the moving direction of the L-shaped structural member is guaranteed.

Two end faces of the first vertical plate 2 and the second vertical plate 3 in the horizontal direction are connected with a baffle 9 through bolts, and the baffle can limit the displacement of the bearing bush 4 in the horizontal direction.

Referring to fig. 2 and 3, the shaping of the bearing shell specifically includes the following steps:

s1, firstly, adjusting the relative positions of the two transverse plates 6 on the base 1 and locking the two transverse plates to ensure that the distance between the first vertical plate 2 and the second vertical plate 3 is equal to the radius height h of the standard bearing bush. Then adjust first riser 2 or second riser 3 height and locking on riser 7, guarantee that first riser 2 side can cover and treat plastic axle bush 4 mid-plane.

S2, the baffle 9 is taken down, the bearing bush 4 to be shaped is arranged between the first vertical plate 2 and the second vertical plate 3, the lower end of the excircle of the bearing bush 4 to be shaped is abutted against the first vertical plate 2, the middle part of the excircle is abutted against the second vertical plate 3, and the baffle 9 is installed again.

And S3, the upper die of the press machine descends, pressure is applied to the upper end of the outer circle of the bearing bush 4 to be shaped, and the opening size required by the process is debugged for the first piece, so that the outer diameter of the bearing bush 4 to be shaped is shortened to be the same as the outer diameter d of the standard bearing bush. The radius of the bearing bush to be shaped is limited to be high through the distance between the first vertical plate 2 and the second vertical plate 3, the condition that the radius height h is larger than the radius r of the split area when the outer diameter of the bearing bush to be shaped is compressed is avoided, and the roundness requirement of the bearing bush is guaranteed. And after the bearing bush 4 to be shaped is subjected to sufficient cold extrusion, the shape is more stable, and the exceeding of the free elastic tension is effectively avoided.

And S4, recording the bottom dead center of the press machine when the corresponding debugging is qualified, and setting the bottom dead center as the standard position for shaping the bearing bushes in other subsequent same batches.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (6)

1. The utility model provides a bearing bush plastic location frock which characterized in that: including base (1) and first riser (2) and second riser (3) of being connected with base (1) can be dismantled, first riser (2) and second riser (3) set up relatively and both intervals are adjustable, form the space of holding axle bush (4) between first riser (2) and second riser (3), divide face contact cooperation in first riser (2) and axle bush (4), second riser (3) and axle bush (4) excircle middle part contact cooperation.

2. The bearing shell shaping and positioning tool according to claim 1, wherein: a cushion block (5) is fixed on the base (1), the cushion block (5) is located between the first vertical plate (2) and the second vertical plate (3), and the top surface of the cushion block (5) is in contact fit with the lower portion of the excircle of the bearing bush (4).

3. A bearing shell shaping and positioning tool according to claim 1 or 2, wherein: the base (1) is at least provided with a first sliding rail (11), and the first vertical plate (2) and the second vertical plate (3) are respectively connected with the first sliding rail (11) in a sliding mode through an L-shaped structural part.

4. A bearing shell shaping and positioning tool according to claim 3, wherein: l type structure includes diaphragm (6) and riser (7), diaphragm (6) downside is fixed with and corresponds complex slider with first slide rail (11), second slide rail (13) are gone up in riser (7), second slide rail (13) can be followed in first riser (2) or second riser (3) and reciprocate.

5. The bearing shell shaping and positioning tool according to claim 4, wherein: one of the transverse plate (6) and the base (1) is provided with a strip-shaped guide hole (12), the other one of the transverse plate and the base is fixed with a guide block (8) correspondingly matched with the strip-shaped guide hole (12), and the direction of the strip-shaped guide hole (12) is the same as the direction of adjusting the distance between the first vertical plate (2) and the second vertical plate (3).

6. A bearing shell shaping and positioning tool according to claim 1 or 2, wherein: both end faces of the first vertical plate (2) and the second vertical plate (3) in the horizontal direction can be detachably connected with a baffle (9), and the baffle (9) can limit the displacement of the bearing bush (4) in the horizontal direction.

Images