Plate spring hoop one-time forming equipment

Abstract

The utility model discloses one-step forming equipment for a plate spring hoop, which comprises a stamping table, and a stamping groove which is sunken downwards and an annular positioning plate which is matched with the outer edge of the plate spring hoop before stamping and is arranged on the peripheral side of the stamping groove are arranged on the table top of the stamping table. The width of the annular positioning plate and the width of the stamping groove are consistent with the width of the plate spring hoop, the stamping groove is located in the middle of the annular positioning plate, a stamping block capable of moving up and down is arranged above the stamping groove, and after the stamping block stamps the plate spring hoop to enter the stamping groove, the stamping block can move up and down. The outer wall of the stamping block and the inner wall of the stamping groove are tightly matched with the plate spring hoop. The plate spring hoop forming device has the advantages that the plate spring hoop can be formed at a time, the plate spring hoop before stamping can be positioned, stamping deviation is avoided, and automatic discharging can be achieved.

Description

Technical Field

[0001] The utility model relates to a one-step forming device for a leaf spring clamp, belonging to the technical field of leaf spring clamp processing. Background Art

[0002] Leaf springs (also known as steel leaf springs) are the most widely used elastic elements in automobile suspensions. They are composed of several alloy spring leaves of equal width but unequal length to form an elastic beam of approximately equal strength. After the leaf springs are combined, they need to be locked and fixed by a clamp, which is usually made by stamping.

[0003] A Chinese patent application with publication number CN208099077U discloses a leaf spring clamp forming device, which includes a base, the bottom of which is fixedly connected to a support leg, the left and right sides of the upper surface of the base are fixedly connected to support rods, the top of the support rods is fixedly connected to a support plate, the bottom of the support plate is fixedly connected to a first electric push rod, and the bottom of the first electric push rod is fixedly connected to a first support block.

[0004] Since the leaf spring hoop is a plate-shaped structure before stamping, it is placed directly under the stamping block. When the above-mentioned device stamps the leaf spring hoop, it is unable to laterally position the leaf spring hoop. The leaf spring hoop is placed under the stamping block. When stamping downward, the lateral and longitudinal positions of the leaf spring hoop are easily offset, causing the leaf spring hoop to fail to be formed, or position and angle deviations to occur at the bend, affecting the stamping quality and efficiency of the leaf spring hoop. Utility Model Content

[0005] The utility model aims to provide a one-step forming device for a leaf spring clamp, which solves the problem in the prior art that the position of the leaf spring clamp is easily offset during stamping.

[0006] The above-mentioned technical purpose of the present utility model is mainly solved through the following technical solutions: a one-time forming device for a leaf spring clamp, comprising a stamping table, a downwardly concave stamping groove and an annular positioning plate that cooperates with the outer edge of the leaf spring clamp before stamping and is arranged on the surrounding side of the stamping groove, the width of the annular positioning plate and the width of the stamping groove are consistent with the width of the leaf spring clamp, the stamping groove is located in the middle of the annular positioning plate, and a stamping block that can be moved up and down is provided above the stamping groove. After the stamping block punches the leaf spring clamp into the stamping groove, the outer wall of the stamping block and the inner wall of the stamping groove are tightly fitted with the leaf spring clamp.

[0007] As a further preferred technical solution of the present invention, the stamping groove includes two shaping portions that are oppositely arranged to form the U-shaped edge of the leaf spring clamp and two limiting portions that are oppositely arranged to limit the width direction of the leaf spring clamp.

[0008] As a further preferred technical solution of the present invention, a support plate is provided at the bottom of the stamping groove, a slot is provided below the support plate, and a telescopic spring connected to the bottom of the slot is provided at the bottom of the support plate.

[0009] As a further preferred technical solution of the present invention, a first through cavity and a second through cavity are respectively provided below the two limiting parts, and the bottom surface of the first through cavity is tilted downward toward the outside of the stamping platform to form a discharge port.

[0010] As a further preferred technical solution of the present invention, limit blocks are provided on both sides of the slotted bottom corresponding to the telescopic spring. When the support plate contacts the top surface of the limit block, the top surface of the support plate is flush with the lower edge of the inner side of the first through cavity.

[0011] As a further preferred technical solution of the present invention, a driving cylinder is provided in the second through cavity, the output end of the driving cylinder is arranged toward the first through cavity, and a push block corresponding to the cross-sectional shape of the leaf spring clamp is provided on the output end of the driving cylinder.

[0012] As a further preferred technical solution of the present invention, a top plate is provided above the stamping table, a plurality of pillars for supporting the top plate are provided on the stamping table surface, a press is provided on the top surface of the top plate, and the driving shaft of the press passes downward through the top plate and is connected to the stamping block.

[0013] Therefore, the utility model has the characteristics of forming the leaf spring clamp in one step, positioning the leaf spring clamp before stamping to avoid deviation during stamping, and automatic discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0015] Figure 2 yes Figure 1 Structural cross-sectional view of the stamping table in FIG;

[0016] Figure 3 yes Figure 1 Structural cross-sectional view of the stamping table from another perspective. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further specifically described below with reference to embodiments and in conjunction with the accompanying drawings.

[0018] like Figure 1-3As shown, a leaf spring clamp one-time forming equipment includes a stamping table 1, a stamping groove 11 that is recessed downward and an annular positioning plate 12 that cooperates with the outer edge of the leaf spring clamp before stamping and is arranged on the side of the stamping groove 11, the width of the annular positioning plate 12 and the width of the stamping groove 11 are consistent with the width of the leaf spring clamp, the stamping groove 11 is located in the middle of the annular positioning plate 12, and a stamping block 21 that can be moved up and down is provided above the stamping groove 11. After the stamping block 21 stamps the leaf spring clamp into the stamping groove 11, the outer wall of the stamping block 21 and the inner wall of the stamping groove 11 are tightly matched with the leaf spring clamp, and the stamping groove 11 includes two U-shaped edge forming and oppositely arranged shaping parts 111 for the leaf spring clamp and two width direction limiting parts for the leaf spring clamp. A limiting portion 112 is positioned and oppositely arranged, a top plate 2 is provided above the stamping table 1, and a plurality of pillars 22 supporting the top plate 2 are provided on the surface of the stamping table 1, and a press 23 is provided on the top surface of the top plate 2, and the driving shaft of the press 23 passes downward through the top plate 2 and is connected to the stamping block 21; the above-mentioned stamping groove is located on the inner side of the annular positioning plate, and the inner wall of the annular positioning plate is matched with the shape of the plate-shaped leaf spring hoop before stamping to realize the positioning of the leaf spring hoop before stamping, and the leaf spring hoop is pressed into the stamping groove by the stamping block for stamping and forming. During the stamping process, the annular positioning block always maintains the limit on the leaf spring hoop, effectively realizing the positioning effect of the leaf spring hoop, avoiding the displacement of the leaf spring hoop during stamping, and improving the stamping quality and efficiency of the leaf spring hoop.

[0019] The length of the stamping block is less than the depth of the combination of the stamping groove and the slotting, and the depth of the combination of the stamping groove and the slotting is greater than the length of the leaf spring hoop. Before stamping, the plate-shaped leaf spring hoop is placed in the annular positioning plate, and then the press is started. The press drives the stamping block to move downward toward the stamping groove. The stamping block moves downward to squeeze the leaf spring hoop so that the leaf spring hoop enters the stamping groove. The forming part of the stamping groove and the side wall of the stamping block cooperate to squeeze the two ends of the leaf spring hoop, thereby realizing the forming of a U-shaped leaf spring hoop. The limiting part of the stamping groove limits the side of the leaf spring hoop in the width direction, thereby enhancing the stability of the leaf spring hoop during stamping and ensuring the forming quality of the leaf spring hoop.

[0020] like Figure 2-3As shown, a support plate 13 is provided at the bottom of the stamping groove 11, a slot 14 is provided below the support plate 13, a telescopic spring 131 connected to the bottom of the slot 14 is provided at the bottom of the support plate 13, a first through cavity 15 and a second through cavity 16 are provided below the two limiting portions 112, the bottom surface of the first through cavity 15 is tilted downward toward the outside of the stamping table 1 to form a discharge port 17, and a limiting block 141 is provided on both sides of the bottom of the slot 14 corresponding to the telescopic spring 131. When the support plate 13 contacts the top surface of the limiting block 141, the top surface of the support plate 13 contacts the first through cavity 15 and the second through cavity 16. The lower edge of the inner side of the cavity 15 is flush, and a driving cylinder 161 is provided in the second through cavity 16. The output end of the driving cylinder 161 is arranged toward the first through cavity 15, and a push block 162 corresponding to the cross-sectional shape of the leaf spring hoop is provided on the output end of the driving cylinder 161; the above-mentioned support plate supports and limits the formed leaf spring hoop and adapts to the displacement distance of the leaf spring hoop. The support plate is automatically reset by the telescopic spring at the bottom, so that after the leaf spring hoop leaves, it automatically returns to its original position by the action of the telescopic spring to achieve continuous stamping.

[0021] After the leaf spring hoop is stamped into shape, the stamping block continues to press the leaf spring hoop down, so that the leaf spring hoop abuts against the support plate and presses the support plate down until the support plate abuts against the top surface of the limit block in the slot. At this time, the position of the leaf spring hoop corresponds to the first through cavity. A wireless sensor can be set inside the limit block to connect the drive cylinder signal, so that when the support plate abuts against the limit block, the drive cylinder can receive the signal control and drive the push block, so that the push block pushes the leaf spring hoop into the first through cavity. After the leaf spring hoop enters the first through cavity, it automatically slides out of the discharge port along the inclined surface to realize automatic unloading. The top surface of the support plate is flush with the lower edge of the inner side of the first through cavity, so as to ensure that the leaf spring hoop can be pushed and translated into the first through cavity. The shape of the push block is a U-shaped structure and corresponds to the cross-sectional shape of the leaf spring hoop.

[0022] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the scope of protection of the present invention.

Claims

1. A leaf spring clamp one-step forming device, comprising a stamping table (1), characterized in that: The stamping table (1) is provided with a downwardly concave stamping groove (11) and an annular positioning plate (12) which matches the outer edge of the leaf spring hoop before stamping and is provided on the side of the stamping groove (11). The width of the annular positioning plate (12) and the width of the stamping groove (11) are consistent with the width of the leaf spring hoop. The stamping groove (11) is located in the middle of the annular positioning plate (12). A stamping block (21) which can move up and down is provided above the stamping groove (11). After the stamping block (21) stamps the leaf spring hoop into the stamping groove (11), the outer wall of the stamping block (21) and the inner wall of the stamping groove (11) are tightly matched with the leaf spring hoop.

2. The leaf spring clamp one-step forming equipment according to claim 1, characterized in that: The stamping groove (11) comprises two shaping portions (111) for shaping the U-shaped edges of the leaf spring hoop and arranged opposite to each other, and two limiting portions (112) for limiting the width direction of the leaf spring hoop and arranged opposite to each other.

3. The leaf spring clamp one-step forming equipment according to claim 2, characterized in that: A support plate (13) is provided at the bottom of the punching groove (11), a slot (14) is provided below the support plate (13), and a telescopic spring (131) connected to the bottom of the slot (14) is provided at the bottom of the support plate (13).

4. The leaf spring clamp one-step forming equipment according to claim 3, characterized in that: A first through cavity (15) and a second through cavity (16) are respectively provided below the two limiting portions (112); the bottom surface of the first through cavity (15) is tilted downward toward the outside of the punching platform (1) to form a discharge port (17).

5. The leaf spring clamp one-step forming equipment according to claim 4, characterized in that: The bottom of the slot (14) is provided with limit blocks (141) on both sides corresponding to the telescopic spring (131); when the support plate (13) contacts the top surface of the limit blocks (141), the top surface of the support plate (13) is flush with the lower edge of the inner side of the first through cavity (15).

6. The leaf spring clamp one-step forming equipment according to claim 4, characterized in that: A driving cylinder (161) is provided in the second through cavity (16), an output end of the driving cylinder (161) is arranged toward the first through cavity (15), and a push block (162) corresponding to the cross-sectional shape of the leaf spring hoop is provided on the output end of the driving cylinder (161).

7. The leaf spring clamp one-step forming equipment according to claim 1, characterized in that: A top plate (2) is provided above the punching table (1), a plurality of pillars (22) for supporting the top plate (2) are provided on the top surface of the punching table (1), a press (23) is provided on the top surface of the top plate (2), and a driving shaft of the press (23) passes downward through the top plate (2) and is connected to the punching block (21).

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