阅读说明：本技术 一种钢板弹簧短片快速应力喷丸预压夹具及方法 (Rapid stress shot blasting prepressing clamp and method for short leaf spring of steel plate ) 是由 沈文军 石朝阳 王海庆 朱涛杰 于 2021-09-28 设计创作，主要内容包括：本发明涉及夹具技术领域,具体涉及一种钢板弹簧短片快速应力喷丸预压夹具及方法。该夹具包括固定板,所述固定板安装在液压机垫板上；上压板,所述上压板在液压机压头的作用下向放置在固定板上的钢板弹簧短片施加压力；导向装置,所述导向装置用于保证上压板向钢板弹簧短片施加的力的均匀垂直性；卡座,所述卡座用于在预压完成后对钢板弹簧短片进行定型。本发明所提供的钢板弹簧短片快速应力喷丸预压夹具,结构简单,通过固定板和上压板对钢板弹簧短片进行预压,并通过卡座进行预压后的定型,可以满足＜800mm长度钢板弹簧单片的预压,操作便捷。(The invention relates to the technical field of clamps, in particular to a steel plate spring short piece rapid stress shot blasting prepressing clamp and a method. The fixture comprises a fixed plate, wherein the fixed plate is arranged on a base plate of the hydraulic press; the upper pressure plate applies pressure to the short leaf spring placed on the fixed plate under the action of the hydraulic press head; the guide device is used for ensuring the uniform verticality of the force applied by the upper pressure plate to the short leaf of the steel plate spring; and the clamping seat is used for shaping the short sheet of the steel plate spring after the prepressing is finished. The rapid stress shot blasting prepressing fixture for the short leaf spring of the steel plate, provided by the invention, has a simple structure, prepresses the short leaf spring of the steel plate through the fixing plate and the upper pressing plate, and performs shaping after prepressing through the clamping seat, so that prepressing of a single leaf spring of a length less than 800mm can be met, and the operation is convenient.)

1. A steel plate spring short sheet rapid stress shot blasting prepressing clamp is characterized by comprising

The fixing plate (21), the said fixing plate (21) is installed on the backing plate (1) of the hydraulic press;

the upper pressure plate (22), the upper pressure plate (22) exerts pressure on the short leaf spring (5) placed on the fixed plate (21) under the action of the hydraulic press head (4);

the guide device is used for ensuring the uniform verticality of the force applied by the upper pressure plate (22) to the steel plate spring short sheet (5);

the clamp seat (3), the clamp seat (3) is used for shaping the short sheet spring (5) after the prepressing is completed.

2. The clamp for rapid stress shot-peening of the steel plate spring short piece according to claim 1, wherein the guiding device comprises four guide posts (23), and the upper press plate (22) passes through the guide posts (23) and can move up and down along the guide posts (23).

3. The clamp for rapid stress shot peening of the short leaf spring of the steel plate spring as claimed in claim 1, is characterized by further comprising two side plates (24), wherein the two side plates (24) are symmetrically arranged, and the horizontal distance between the two side plates (24) is matched with the width of the short leaf spring (5).

4. The clamp for rapid stress shot blasting prepressing of the steel plate spring short piece according to the claim 1, characterized in that U-shaped grooves (25) are arranged at four corners of the fixing plate (21), a sliding groove is arranged on the hydraulic press backing plate (1), and the fixing plate (21) is fixed on the hydraulic press backing plate (1) through bolts, the U-shaped grooves (25) and the sliding groove.

5. The clamp for rapid stress shot peening of short leaf spring according to claim 1, further comprising an adjustment plate (6), wherein the adjustment plate (6) comprises an upper adjustment plate and a lower adjustment plate, and the short leaf spring (5) is located between the upper adjustment plate and the lower adjustment plate during pre-pressing.

6. The clamp for rapid stress shot peening of the short leaf spring of the steel plate spring as claimed in claim 1, wherein the clamp seat (3) at least comprises a clamp seat body (31) with a U-shaped structure, and the clamp seat body (31) with the U-shaped structure is used for clamping two ends of the short leaf spring after being pre-pressed.

7. The clamp for rapid stress shot peening of the short leaf spring of the steel plate spring as claimed in claim 6, wherein an adjustable pressure plate (32) is arranged on at least one cross arm of the clamp seat body (31), and the clamp seat (3) clamps the short leaf spring of the steel plate spring through the pressure plate (32).

8. The clamp for rapid stress shot peening of the short leaf spring of the steel plate spring as claimed in claim 7, wherein the pressing plate (32) is adjustably mounted on the cross arm of the clamp seat body (31) through a screw rod (33).

9. The clamp for rapid stress shot blasting prepressing of the short leaf spring of the steel plate spring according to any one of claims 6 to 8, characterized in that a handle (34) is further arranged on the clamp seat body (31).

10. A rapid stress shot blasting method for a short sheet of a steel plate spring is characterized by comprising the following steps:

firstly, a mounting base plate (7) is added between the two short leaf springs, and then the two short leaf springs are oppositely mounted together by bolts (8);

clamping the two installed leaf spring short pieces by using the clamp (2) as claimed in any one of claims 1 to 9, and performing pre-pressing under the action of a hydraulic machine;

and (3) clamping the two pre-pressed steel plate springs by adopting a clamping seat (3), taking down the steel plate springs, and putting the steel plate springs into a shot blasting machine for shot blasting treatment.

Technical Field

The invention relates to the technical field of clamps, in particular to a steel plate spring short piece rapid stress shot blasting prepressing clamp and a method.

Background

At present, the shot blasting of the short leaf springs cannot be realized by the existing equipment, so that the stress shot blasting is not carried out on the single leaf springs with the length of less than 800mm, and only the common shot blasting treatment can be carried out. It is known that the service life of the steel plate spring after ordinary shot blasting is far shorter than that of stress shot blasting, which also causes great limitation on the improvement of the service life of the whole steel plate spring assembly.

Disclosure of Invention

Based on the above, the invention aims to provide a rapid stress shot blasting prepressing fixture for a short leaf spring of a steel plate, which can meet the prepressing requirement of a single leaf spring of a length of less than 800mm so as to facilitate the subsequent stress shot blasting treatment.

The technical scheme for solving the technical problems is as follows:

a rapid stress shot blasting prepressing clamp for a short leaf of a leaf spring comprises a fixed plate, wherein the fixed plate is arranged on a base plate of a hydraulic press; the upper pressure plate applies pressure to the short leaf spring placed on the fixed plate under the action of the hydraulic press head; the guide device is used for ensuring the uniform verticality of the force applied by the upper pressure plate to the short leaf of the steel plate spring; and the clamping seat is used for shaping the short sheet of the steel plate spring after the prepressing is finished.

Preferably, the guide device comprises four guide posts, and the upper press plate passes through the guide posts and can move up and down along the guide posts.

Preferably, the spring support further comprises two side plates, the two side plates are symmetrically arranged, and the horizontal distance between the two side plates is matched with the width of the short leaf of the leaf spring.

Preferably, four corners of the fixing plate are provided with U-shaped grooves, the hydraulic press base plate is provided with a sliding groove, and the fixing plate is fixed on the hydraulic press base plate through bolts, the U-shaped grooves and the sliding groove.

Preferably, the clamp further comprises an adjusting plate, the adjusting plate comprises an upper adjusting plate and a lower adjusting plate, and during prepressing, the steel plate spring short piece is located between the upper adjusting plate and the lower adjusting plate.

Preferably, the clamping seat at least comprises a clamping seat body with a U-shaped structure, and the clamping seat body with the U-shaped structure is used for clamping two ends of the two pre-pressed short leaf springs.

Preferably, an adjustable pressing plate is arranged on at least one cross arm of the clamping seat body, and the clamping seat clamps the short leaf spring through the pressing plate.

Specifically, the pressing plate is adjustably mounted on a cross arm of the clamping seat body through a screw rod.

Preferably, a handle is further disposed on the card seat body.

The invention also provides a rapid stress shot blasting method for the short leaf spring of the steel plate spring, which comprises the following steps:

firstly, mounting base plates are added between two short leaf springs and then oppositely mounted together by bolts;

clamping the two installed leaf spring short pieces by using the clamp, and performing prepressing under the action of a hydraulic machine;

and (4) clamping the two steel plate springs subjected to pre-pressing by using a clamping seat, taking down the two steel plate springs, and putting the two steel plate springs into a shot blasting machine for shot blasting.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

(1) the rapid stress shot blasting prepressing fixture for the short leaf spring of the steel plate, provided by the invention, has a simple structure, the short leaf spring of the steel plate is prepressed through the fixing plate and the upper pressing plate, and is shaped after prepressing through the clamping seat, so that the prepressing of the single leaf spring of the steel plate with the length less than 800mm can be met; meanwhile, the prepressing treatment of the short leaf springs of various types can be realized by adjusting the prepressing contact point;

(2) by arranging the adjusting plate, prepressing is realized through the adjusting plate, and when the short leaf springs of different types are replaced, only the adjusting plate of the corresponding type needs to be replaced, so that the use cost is reduced greatly, and the convenience is improved;

(3) the clamping seat is provided with the pressing plate, and adjustment is achieved through the screw rod, so that operation is convenient and fast.

Drawings

FIG. 1 is a schematic diagram of a steel plate spring short piece rapid stress shot-peening pre-pressing fixture according to an embodiment of the invention in use;

FIG. 2 is a schematic structural diagram of a steel plate spring short-piece rapid stress shot-peening pre-pressing fixture according to an embodiment of the invention;

FIG. 3 is a schematic structural diagram of a clamping seat in the steel plate spring short piece rapid stress shot blasting pre-pressing fixture according to the embodiment of the invention;

FIG. 4 is a schematic structural view before the leaf spring short piece is pre-pressed;

in the drawings, the components represented by the respective reference numerals are listed below:

the hydraulic press comprises a hydraulic press base plate 1, a clamp 2, a clamping seat 3, a hydraulic press head 4, a steel plate spring short piece 5, an adjusting plate 6, an installation base plate 7, a bolt 8, a fixing plate 21, an upper pressing plate 22, a guide pillar 23, a side plate 24, a U-shaped groove 25, a clamping seat body 31, a pressing plate 32, a screw rod 33 and a handle 34.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be connected to the other element through intervening elements.

Fig. 1 is a schematic diagram of a steel plate spring short piece rapid stress shot blasting prepressing fixture in use, fig. 2 is a schematic diagram of a structure of the steel plate spring short piece rapid stress shot blasting prepressing fixture, fig. 3 is a schematic diagram of a clamping seat, and fig. 4 is a schematic diagram of a structure before the steel plate spring short piece is prepressed.

As shown in fig. 2, a quick stress shot blasting prepressing fixture for a short leaf spring of a steel plate comprises a fixing plate 21, an upper pressing plate 22, a guiding device and a clamping seat 3, wherein the fixing plate 21 is installed on a base plate 1 of a hydraulic press, the upper pressing plate 22 applies pressure to the short leaf spring 5 placed on the fixing plate 21 under the action of a pressure head 4 of the hydraulic press, the guiding device is used for ensuring the uniform verticality of the force applied by the upper pressing plate 22 to the short leaf spring 5, and the clamping seat 3 is used for shaping the short leaf spring 5 after the prepressing is completed.

When the device is used, firstly, the bolts 8 are oppositely arranged in the middle of two short leaf springs and after the installation base plate 7 is added, then the short leaf springs are placed on the fixing plate 21, the short leaf springs are pre-pressed by the hydraulic press head 1 and the upper pressing plate 22, after the pre-pressing is completed, the clamping seat 3 is adopted to fix and shape the short leaf springs, and then the short leaf springs are placed in a shot blasting machine for shot blasting. The device simple structure can satisfy the pre-compaction of < 800mm length leaf spring monolithic and handle, can realize the pre-compaction of the leaf spring short leaf of multiple model through the pre-compaction contact point of adjustment top board 22 and fixed plate 21 on leaf spring.

In one embodiment of the invention, the guiding means comprises four guide posts 23, and the upper press plate 22 passes through the guide posts 23 and can move up and down along the guide posts 23. It can be understood that four guide posts 23 can be installed by adopting the installation form of direct fixed mounting on the fixed plate 21, and when in use, the short leaf spring pieces are positioned between the four guide posts 23, and the guide posts can also play a role in primarily positioning the short leaf spring pieces.

In an embodiment of the invention, the fixture further comprises two side plates 24, the two side plates 24 are symmetrically arranged, the horizontal distance between the two side plates 24 is matched with the width of the short leaf spring 5, namely, the side plates 24 play a role in positioning the short leaf spring 5 left and right during prepressing, and meanwhile, the short leaf spring 5 can be prevented from flying out to injure operators during prepressing.

It can be understood that the side plate 24 can be fixedly connected to the fixing plate 21 or detachably connected to the fixing plate 21, for example, it can be installed on the fixing plate 21 through a waist hole, and the width of the leaf spring 5 can be adjusted appropriately.

In one embodiment of the invention, the four corners of the fixing plate 21 are provided with U-shaped grooves, the hydraulic press base plate 1 is provided with a sliding groove, and the fixing plate 21 is fixed on the hydraulic press base plate 1 through bolts, the U-shaped grooves 25 and the sliding groove, so that the installation is convenient, and the installation position of the fixing plate 21 can be conveniently adjusted according to requirements.

In one embodiment of the invention, the clamp further comprises an adjusting plate 6, the adjusting plate 6 comprises an upper adjusting plate and a lower adjusting plate, and the short leaf spring 5 is positioned between the upper adjusting plate and the lower adjusting plate during pre-pressing. Through setting up the adjusting plate, the power of hydraulic pressure aircraft nose 4 is applyed on leaf spring quarter butt 5 through top board 22, adjusting plate, when changing the leaf spring of different models, only need its corresponding adjusting plate of simple change can, it is more convenient.

Further, can also set up the locating hole on the fixed plate 21, when placing the leaf spring short piece, guarantee that the bolt 8 of two fixed leaf spring short pieces is located this locating hole department, guarantee that the leaf spring short piece at every turn places the uniformity of position and can not influence the pre-compaction action.

As shown in fig. 3, the clamping seat 3 at least includes a clamping seat body 31 with a U-shaped structure, and the clamping seat body 31 with the U-shaped structure is used for clamping two ends of the two pre-pressed short leaf springs to pre-press and fix the two pre-pressed short leaf springs. Which is clamped like a clamp structure at both ends of two short leaf springs.

In one embodiment of the present invention, an adjustable pressing plate 32 is disposed on at least one cross arm of the cartridge body 31, and the cartridge 3 clamps the short leaf spring through the pressing plate 32.

Specifically, the pressing plate 32 is adjustably mounted on the crossbar of the cartridge body 31 through a lead screw 33. The clamping thickness of the pressing plate 32 can be adjusted by rotating the screw rod 33. It can be understood that, two cross arms of the cartridge body 31 may be respectively provided with one pressing plate 32, or only one cross arm may be provided with a pressing plate, and for convenience of operation, a form of providing a pressing plate 32 on one cross arm is generally adopted.

In order to facilitate taking, the holder body 31 is further provided with a handle 34.

The method for quickly stress shot blasting the short leaf spring of the steel plate spring comprises the following steps:

firstly, mounting base plates 7 are added between the two short leaf springs, and then the two short leaf springs are oppositely mounted together by bolts 8, which can be seen in fig. 4 specifically;

clamping the two installed steel plate spring short pieces by using the clamp, and performing prepressing under the action of a hydraulic machine;

and (4) clamping the two steel plate springs subjected to pre-pressing by using the clamping seat 3, then taking down the steel plate springs, and putting the steel plate springs into a shot blasting machine for shot blasting.

After the shot blasting treatment, the clamping seat 3, the mounting base plate 7 and the bolt 8 are removed, and then the subsequent working procedures are carried out.

After the treatment of the working procedure, the service life of the steel plate spring assembly can be obviously prolonged.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.